Flax harvester with a pendulum with independent pulleys

专利摘要:
The invention relates to a flax harvester (10) comprising a harvesting module with a frame, comprising a first and second main pulley (26,28) mounted on the frame (20), a first side member (30) arranged next to the first main pulley (26) the first side member (30) comprising an upstream pulley (32) and a downstream pulley (34), a first belt between the first main pulley (26) and the upstream pulley (32) of the first side member on the one hand, and between the first main pulley (26) and the downstream pulley (34) of the first side member run on the other side so that the upstream pulley and the downstream pulley of the first side member (30) can exert a pressure against the first belt (40) about the first belt (40 ) against the first main pulley (26). According to the invention, the harvesting module (12) further comprises a first displacement mechanism for changing the distance between the upstream and downstream pulleys so as to change the spacing between the first main pulley and at least one of the upstream and downstream pulleys of the first side member.
公开号:BE1027336B1
申请号:E20205460
申请日:2020-06-23
公开日:2021-08-03
发明作者:Rik Depoortere
申请人:Depoortere；
IPC主号:

专利说明:

DESCRIPTION : Title of the invention: Flax harvester with a crank with | independent pulleys, 9 5 9 technical application song 9 The present invention concerns the field of the flax or | hemp harvest, and more particularly the harvesting phase. The invention has | in particular relates to a machine for grubbing up such crops. | State of the art 9 The use of a special machine, also known as a harvester | called, for grubbing up flax or hemp, is known. In known manner, a flax harvester comprises one or more harvesting modules arranged at the front of the machine, a tilting module or zone to rotate the harvested stalks 90° and a deposit module arranged at the rear of the machine to swath the stalks on the ground to lay.
More particularly, the invention relates to such a flax or hemp harvesting machine comprising at least one harvesting module, which harvesting module comprises a first and a second main pulley mounted for rotation on a frame, the axes of rotation of the first and second main pulleys being parallel to and on a distance from each other, where a first side element next to the first main pulley! said first side member comprising an upstream pulley and a downstream pulley, the flax grub further comprising at least a first belt cooperating with the first main pulley, the upstream pulley and with the downstream pulley of the first side member, wherein the first belt is between the first main pulley and the upstream pulley of the first side element on the one hand, and between the first main pulley and the downstream pulley of the first side element on the other hand.
The terms "upstream" and "downstream" are seen in a direction from the front of the machine to the back of the machine.
| The harvesting of flax stalks is realized in a known manner during the displacement of the flax harvesting machine.
| Such a flax harvester is described, for example, in FR | 1281 756. While the machine is moving, certain 9 5 flax stalks located in front of the harvesting modules are grabbed by | clamping between the first belt 23 and the first main pulley 19. Through the | displacement of the first belt 23, the flax stalks are grabbed and lifted. The harvested stems are then clamped by the belts | and brought to the rear of the machine. In other machine types 9 10 the main pulley is surrounded by a belt and the flax is pulled between the 9 two belts.
In the above-mentioned prior art harvester, the upstream pulley 44 and the downstream pulley 45 of the first side member cooperate with the first belt so as to guide the latter while keeping it in contact with and pressed against the first main pulley.
However, this configuration, which is necessary to ensure that the stems are cleared, makes maintenance work difficult and dangerous, as the first belt is generally a hi! that hooks into the grooves of the upstream and downstream pulleys.
To replace the belt, the operator must pull on the belt to unhook the heel of the first belt from the grooves of the upstream and downstream pulleys. Since the first belt is tensioned, it must be set in motion so that the operator can unhook it from the grooves of the upstream and downstream pulleys.
This actuation of the first belt is particularly dangerous because it could injure the operator if he accidentally puts his leg or hand between the first belt and the first main pulley. Disclosure of the Invention An object of the present invention is to provide a flax harvester exhibiting a higher safety in use, which in particular allows easier mounting/dismounting of the first belt, especially without rotating the first belt.
The invention achieves its object in that the harvesting module has a first displacement mechanism to adjust the distance between the pulleys | upstream and downstream to change the gap | between the first main pulley and at least one of the upstream and downstream pulleys of the first side element. # It goes without saying that the first displacement mechanism is the | allows the upstream and downstream pulleys to be moved closer together or further apart, resulting in a change in the spacing between the first main pulley and at least one of the upstream and downstream pulleys.
By spacing the upstream and downstream pulleys farther apart, the spacing between the first main pulley and at least one of the upstream and downstream pulleys can be increased, thereby freeing up space to release the first belt, especially when the upstream and downstream pulleys have a groove that mates with a heel of the first belt.
In contrast, by bringing the upstream and downstream pulleys closer together, the gap between the first main pulley and at least one of the upstream and downstream pulleys is reduced.
Preferably, the displacement of the downstream pulley! realized relative to the upstream pulley in a plane perpendicular to the axes of rotation of the upstream and downstream pulleys.
Advantageously, the displacement mechanism is configured to move at least one of the upstream and downstream pulleys relative to the first main pulley between an operating position in which at least one of the upstream and downstream pulleys is close to the first main pulley, and a distant position in which at least one of the upstream and downstream pulleys is far from the first main pulley, so that the first belt can be detached from the first main pulley without moving the belt.
In working position, the first belt can lean against the upstream and downstream pulleys.
; According to a preferred embodiment, the downstream pulley of the first side member has an axis of rotation and is mounted on a plate of the first side member, pivoting about a first pivot axis parallel to and spaced from the first pivot. 5 rotation axis. : It goes without saying that the downstream pulley rotates on its own 9 about its axis of rotation, and is rotated by the | displacement of the first belt. The first displacement mechanism is configured to pivot the downstream pulley about the first pivot axis. Preferably, the downstream pulley of the first side member is pivotally mounted on an arm pivotally connected about said first pivot axis to the plate of the first side member .
To pivot the arm about the first pivot axis, the displacement mechanism has an actuator connected to the plate of the first side member and cooperating with the arm. Preferably, the actuator is a jack. The actuator thus makes it possible to pivot the aforementioned arm relative to the plate.
Advantageously, the actuator is movably, preferably pivotally, mounted on the plate of the first side element.
Advantageously, the actuator is movably, preferably pivotally, mounted on the arm.
Advantageously, the plate has a stop configured to cooperate with the arm, and the arm leans against the stop when said at least one of the upstream and downstream pulleys is in working position.
It goes without saying, therefore, that the stop makes it possible to limit the displacement of the arm relative to the plate in order to ensure, in working position, a small clearance between the first belt and the first main pulley.
Advantageously, the pivot axis is parallel to an axis of rotation of the first main pulley. Advantageously, the first side member is pivotally mounted relative to the frame, preferably about a pivot axis parallel to the first pivot axis. Preferably, the plate is pivotally mounted on the frame about the pivot axis.
It goes without saying that the displacement mechanism is ; configured to use at least one of the upstream and | to pivot downstream pulleys around the first pivot axis | relative to the first main pulley between the working position and the remote [ 5 position. | Without departing from the scope of the present invention, the | first main pulley surrounded by a secondary belt, so that the grubbing : takes place between the first belt and said secondary belt. According to a preferred embodiment, the grubbing module has a second side member adjacent to the second main pulley and opposite the first side member, the second side member having an upstream pulley and a downstream pulley, the flax harvester further has a second belt cooperating with the second main pulley, the upstream pulley and the downstream pulley of the second side member, wherein the second belt runs between the second main pulley and the upstream pulley of the second side member on the one hand, and between the second main pulley and the downstream pulley of the second side member on the other, the lifting module further has a second displacement mechanism for changing the distance between the upstream and downstream pulleys of the second side member so as to change the spacing between the second main pulley and at least one of the upstream and downstream pulleys of the second side member.
Preferably, the second side member is pivotally mounted on the frame.
It goes without saying that the first and second side members are arranged on either side of a vertical plane lying between the first and second main pulley.
Brief description of the drawings In order to make the invention clearer, an embodiment of the invention is described below by way of example, without any limitation, with reference to the accompanying drawings, in which: [Fig. 1] Figure 1 is a plan view of the front portion of a flax harvester according to a first embodiment of the invention, wherein the downstream pulley! is in working position;
[Fig. 2] Figure 2 is an exploded view of the first side element; in the position of figure 1, in bottom view; [Fig. 3] figure 3 illustrates the harvesting module of the machine of figure 1, ; wherein the downstream pulley is in the far position; and 9 5 [FIG. 4] figure 4 is an exploded view of the first side element | in the position of figure 3, in bottom view. | Detailed Description of an Embodiment: Figure 1 shows a bottom view of a $10 exemplary embodiment of a flax harvester 10 in accordance with the present invention.
As already noted above, flax harvesting machines are already known.
An example is disclosed in particular in document FR 1 281 756.
The flax harvester, also called a harvester, disclosed in the above-cited document is of the "single-row" type, in other words, it is configured to realize a single row of parallel stalks, also called swath. The flax harvester illustrated in Figure 1 is of the "double row" type, in other words it is configured to realize two rows of parallel swaths. The flax harvesting machine 10 comprises several harvesting modules 12, 14 which are arranged side by side. In the detail of figure 1, only the harvesting modules 12 and 14 can be seen.
The first and second harvesting modules 12, 14 are symmetrical with respect to a vertical plane P1.
In what follows, only the first harvesting module 12 is described. The machine 10 comprises a frame 20 which, in this example, consists of a first longitudinal beam 22 and an arm 24.
In known manner, the flax harvesting machine 10 further has a first main pulley 26 which is rotatably mounted on the frame 20 . More precisely, in this example is the first main pulley! 26 rotatably mounted on the arm 24 about an axis of rotation K1.
The flax harvester 10 further includes a second main pulley 28 which is rotatably mounted on the frame 20, and in particular is rotatably mounted on the arm 24 . The second main pulley 28 is rotatable about an axis of rotation X2 which is parallel to and spaced from the axis of rotation X1 of the first main pulley 26. | The flax harvester 10 further comprises a first side element 30 which | is set up next to the first mainkatroi 26. | 5 The first side element 30 comprises a plate 31 on which a | upstream pulley 32 and a downstream pulley 34 are 9 mounted. The upstream pulley 32 is rotatable on its own about | an axis of rotation X3, while the downstream pulley 34 on itself | rotatable about an axis of rotation X4, wherein the axes of rotation X3, X4 of the upstream and downstream pulleys are parallel to each other. Like | As can be seen in Fig. 1, the first main pulley 26 is arranged mainly between the 9 upstream pulley 32 and the downstream pulley 34. Preferably, the first side member is pivotally mounted on the frame. To this end, the plate 31 is mounted pivotally with respect to the first longitudinal beam about an axis Y, as can be seen in FIG.
2. In this example, the first side member 30 further comprises an auxiliary pulley! 36 which is rotatably mounted on the plate 31. It is further understood that, in this embodiment, the downstream pulley 34 of the first side member is mounted on the plate 31 of the first side member and is pivoted about a first pivot axis A which is parallel to and spaced from the rotational axis X4 of the downstream pulley 34. To this end, the first side member 30 comprises an arm 38 pivotally connected about the first pivot axis A to the plate 34 of the first side member. The downstream pulley! 34 is rotatably mounted about its axis of rotation X4 on the arm 38 at a distance from the first pivot axis . Without departing from the scope of the present invention, the upstream pulley 32 could alternatively be mounted on an arm that is pivotable with respect to the plate 31. It could also be provided that the upstream and downstream pulleys are each mounted on arms. which are pivoted with respect to the plate 31. In known manner, the flax harvester 10 further comprises at least a first belt 40 cooperating with the first main pulley 26, the upstream pulley 32, the downstream pulley 34 and the | auxiliary pulley! 36 of the first side element 30. The first belt 40 has the | function of grabbing, digging up and | . the stalks T of the crops transport to the storage module at the rear of the machine. 9 5 As can be seen in figure 1, the first belt 40 runs between the | first main pulley 26 and the upstream pulley of the first | side element on the one hand and between the first main pulley 26 and the 9 downstream pulley! 34 of the first side element on the other hand. | In this non-limiting example, the first belt is hooked in grooves of 9 10 the upstream and downstream pulleys. To this end, as is known from other documents, the first belt comprises a | bead which hooks into the grooves of the upstream and downstream pulleys. In this non-limiting example, the main pulley comprises a flat tread which cooperates with a flat side of the first belt, the flat side being opposite the side with the bead.
In a known manner, at least one of the upstream and downstream pulleys of the first side element 39, preferably the two pulleys, can abut against the first belt 40, when the machine is in operation, to guide the movement of the belt and keep him close to first main pulley.
In known manner, the flax harvester 10 further comprises guide bars 50 which form a divider to the upstream pulley 32 and the first main pulley 26 so that the flax stalks T which come between the guide bars 58 are clamped between the first belt 40 and the first main pulley 26 during the movement of the flax harvester. and carried by the first belt 49 to a part downstream of the flax lifter where they are turned 90° before being deposited on the ground at the rear of the flax lifter 40.
The flax harvester 10 includes drive means, known from other documents and not shown here, to drive the first belt 40 .
According to the invention, the harvesting module 12 further comprises a first displacement mechanism 62 for changing the distance between the upstream and downstream pulleys 32,34 so as to adjust the gap between the first main pulley and at least one of the upstream and downstream pulleys. downstream pulleys of the first side element. | Referring to Figures 1 and 3, it is obvious that the first displacement mechanism 62 is configured to move the | 5 to move the downstream pulley 34 further from or closer to the upstream pulley 32 so as to increase or decrease the gap between the first side member 9 and the first main pulley. to pivot the downstream pulley 34 relative to the plate 31 about the first pivot axis A.
In this example, the displacement mechanism 62 is configured to move the downstream pulley 34 relative to the first main pulley 26 between a working position illustrated in Figures and 2, and a distant position illustrated in Figures 3 and 4.
in the working position, the downstream pulley is close to the first main pulley, allowing at least one of the upstream and downstream pulleys to lean against the first belt.
In this example, the plate 31 is pivotally mounted with respect to the frame so that the first side element moves like a pendulum. This causes the upstream pulley, in working position, to move closer to the first belt while the downstream pulley moves away from it, and vice-versa. This structure, known from other documents, ensures that a group of stems passes between the first belt and the first main pulley.
In the far position, the downstream pulley 34 is far from the first main pulley. This configuration allows to "decelerate" the first belt, allowing the operator to easily unhook the belt from the grooves of the upstream and downstream pulleys.
It is also apparent that the transition between the working position and the remote position is made by pivoting the arm 38 and the downstream pulley 34 about the first pivot axis A.
In order to allow the downstream pulley 34 to pivot about the first pivot axis À, the first displacement mechanism 62 comprises an actuator 79, in this example a jack 72, which is connected on the one hand to the first side element 30 and on the other hand cooperates with the arm 38. More specifically, the jack 72 mounted on the plate 31 of the first | side element 30 and this in a movable manner, preferably hinged around | an axis B. | The actuator 70 is further movable, preferably pivoting about a pivot axis © mounted on the arm 38. 9 It goes without saying that the first pivot axis À is parallel to the axis of rotation X1 of the first main pulley 26. 9 The actuator can the downstream pulley can thus be moved between the working position and the remote position. It can be seen from Figures 2 and 4 that the plate 31 further comprises a stop 39 against which the arm 38 comes to rest when the downstream pulley is in the working position. pivot until the aforementioned arm reaches the stop 39. According to a variant embodiment, the plate 31 does not have a stop 39, so that the pressure exerted on the first belt can be adjusted by adjusting the path of the jack 72.
In this example, the harvesting module 12 further comprises a second side element 30°, similar to the first side element 30, arranged adjacent to the second main pulley 28 and opposite the first side element 30.
The second side member 30' includes an upstream pulley 32' and a downstream pulley 34". Referring to Figures 1 and 3, it can be seen that the second main pulley 28, the upstream pulley 32' and the downstream pulley 34' are symmetrical to the first. main pulley 26, the upstream pulley 32 and the downstream pulley 34 with respect to a vertical plane P2 which is substantially parallel to a vertical plane P1.
The flax harvester 19 further includes a second belt 40' cooperating with the second main pulley 28, the upstream pulley 32' and the downstream pulley 34' of the second side member 36".
The second belt 4% runs between the second main pulley 28 and the upstream pulley 32" of the second side element 30" on the one hand, and between the second main pulley 28 and the downstream pulley 34' of the second side element on the other hand so that at least one of the upstream pulley 32 and downstream pulley 34' of the second side member 30' cooperates with the second belt 40" to guide it while keeping it close to the second main pulley 28'.
Downstream of the first and second main catro! 26,28, { the first and second belt 40,40' are pressed together so that they form the | hold harvested flax stalks and move to the back of the | bring flax harvester 10.
9 5 The harvesting module further comprises a second displacement mechanism | 62', in this case an actuator comprising a jack, to move the downstream 9 and upstream pulleys of the second side member 30" relative to each other to reduce the gap between the second 9 main pulley and the downstream pulley 34' of the second side element 9 10 39'.
The first and second displacement mechanisms 62, 62' can be driven independently of each other.
In the example of Figure 3, the downstream pulley 34" of the second side member 30° is also in the distal position. The second belt 40" is shown in a relaxed state in which it is substantially spaced from the second main pulley.
Without departing from the scope of the present invention, the first displacement mechanism may be configured to pivotally move the upstream pulley relative to the plate of the first side member.
Alternatively, the machine may include a third belt around the first main pulley so that the stems are gripped between the first belt and the third belt. The invention thus makes it possible to disassemble the first and third belts easily.

权利要求:
Claims (10)
[1]
CONCLUSIONS.
| 1. Flax harvesting machine (10) comprising at least one harvesting module | 5 (12,14,16} with a frame(20), said harvesting module comprising a first and second main pulley (26,28) rotatably mounted on the frame (20), wherein the rotation axes (X1,X2) of the first and second main pulleys are parallel to and spaced apart, a first side member (30) arranged adjacent to the first main pulley (26), the first side member (30) being an upstream pulley (32) and a downstream pulley ( 34), the flax harvester (10) further comprising at least a first belt (40) cooperating with the first main pulley (26), the upstream pulley (32) and the downstream pulley (34) of the first side member, wherein the first belt (40) runs between the first main pulley (26) and the upstream pulley (32) of the first side element on the one hand, and between the first main pulley (26) and the downstream pulley (34) of the first side element on the other, so that the upstream pulley and the downstream pulley of the first side member (30) has a being able to exert pressure against the first belt (40) to press the first belt (40) against the first main pulley (26), the flax harvester being characterized in that the first side member comprising the upstream and downstream pulley is pivotally mounted with respect to of the frame, and that the lifting module (12) further comprises a first displacement mechanism (62) for changing the distance between the upstream and downstream pulleys (32,34), so as to increase the gap between the first main pulley and at least one of the upstream pulleys and modifying downstream pulleys of the first side member.
[2]
The flax harvester of claim 1, wherein the displacement mechanism (62) is configured to displace at least one of the upstream and downstream pulleys (32,34) relative to the first main pulley (26) between an operating position in which at least one of the upstream and downstream pulleys downstream pulleys located close to the first main pulley | and a distant position where at least one of the | upstream and downstream pulleys far from the first | main pulley is positioned so that the first belt (40) can be detached 9 from the first main pulley (26), without setting the belt in motion. 9
[3]
A flax harvester according to claims 1 or 2, wherein the # downstream pulley (34) of the first side member has an axis of rotation (X4) and is mounted on a plate (31) of the first side member and pivots it about a first pivot axis (A). which is parallel to and spaced from the axis of rotation (X4).
[4]
A flax harvester according to claim 3, wherein the downstream pulley! (34) of the first side member is pivotally mounted on an arm (38) pivotally connected about said first pivot axis (A) to the plate (31) of the first side member.
[5]
Flax harvester according to claim 4, wherein the first displacement mechanism (62) comprises an actuator (70), such as an auger (72), connected to the first side member (30) and cooperating with the arm (38), allowing the said to allow the arm to pivot relative to the plate (31)
[6]
Flax harvester according to claim 4 or 5, wherein the actuator (70) is mounted movably, preferably pivotally, on the plate (31) of the first side element (30).
[7]
A flax harvester according to any one of the preceding claims 4 to 6, wherein the actuator (70) is mounted movably, preferably pivotally, on the arm (38).
[8]
A flax harvester according to claim 2 and any one of claims 4 to 7, wherein the plate (31) comprises a stop (39) configured to cooperate with the arm (38), and wherein the arm (38)
leans against the stop (39) when said at least one of the upstream and downstream pulleys (32,34) is in working position. | 5
[9]
Flax harvester according to one of the preceding claims 3 to 8, | wherein the first pivot axis (A) is parallel to a rotation axis (X1) 9 of the first main pulley (26). 9
[10]
A flax harvester (10) according to any one of the preceding claims, wherein the harvesting module (12) further comprises a second side member (30°) arranged adjacent the second main pulley (21) and opposite the first side member (30), the second side member (30%) comprises an upstream pulley (32%) and a downstream pulley (34%), the flax harvester (10) further comprising a second belt (40) cooperating with the second main pulley! (28), the upstream pulley (32%) and the downstream pulley (34% of the second side member (30%), with the second belt (40% between the second main pulley (26) and the upstream pulley (32) of the second side member (30% on the one hand, and between the second main pulley (28%) and the downstream pulley (34°) of the second side member on the other, so that the upstream pulley (32% and the downstream pulley (34%) of the second side member ( 30%) exerts a pressure on the second belt (40%) to press the second belt (40%) against the second main pulley (28), the lifting module further comprising a second displacement mechanism (62) to move the downstream and upstream pulleys of moving the second side member (30%) relative to each other so as to change the spacing between the second main pulley and at least one of the upstream and downstream pulleys of the second side member.

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同族专利:

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公开号 | 公开日

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BE1027336A1|2021-01-07|

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FR3097717A1|2021-01-01|

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FR3097717B1|2021-09-17|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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BE490294A|

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US2183946A|1936-07-30|1939-12-19|Automatic Flax Production Unit|Machine for pulling standing flax or other like plants|

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FR1281756A|1961-02-28|1962-01-12|Flax pulling machine|

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EP3272202A1|2016-07-22|2018-01-24|Guy Dehondt|Self-propelled agricultural machine for harvesting plants with fibrous stems, in particular flax plants|

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法律状态:
2021-09-03| FG| Patent granted|Effective date: 20210803 |

优先权:

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申请号 | 申请日 | 专利标题

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FR1906874A|FR3097717B1|2019-06-25|2019-06-25|Flax pulling machine with a balance with independent pulleys.|

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