Device for limiting supply of lubricant through coaxial passage of revolving shaft

专利摘要:

公开号:SU1828527A3
申请号:SU4895021
申请日:1991-03-11
公开日:1993-07-15
发明作者:Manga Klod；Tryuen Zherar
申请人:Hispano Suiza Sa；
IPC主号:

专利说明:

UNION OF SOVIET
SOCIAL IS TRUE
REPUBLIC, _W SU <. „1828527 AZ <505 F 16 N 7 / 36.27 / 00 _____
STATE PATENT OFFICE OF THE USSR (GOSPATENT of the USSR)
DESCRIPTION
TO THE PATENT
INVENTIONS
(21) 4895021/29 (86) PCT / FR 90/00523 (12.07.90) (22) 11.03.91 (46) 07.15.93. Bull. No. 26 (31) 8909370 (32) 07/12/89 (33) FR (71) Ispano Suiza (FR) (72) Claude Manga and Gerard Truein (FR) (56) Application of France No. 2543654, cl. F 16 N7 / 36. 1984.
(54) DEVICE FOR RESTRICTING LUBRICATION SUPPLY THROUGH A COAXIAL CHANNEL OF A ROTATING SHAFT (57) Summary of the invention: the lubrication device is made in the form of a nozzle. In the coaxial channel of the shaft, a partition is fixed with a cavity bounded by the inner and outer walls. The nozzle is located on the side of the shaft end and faces the outer side of the outer wall, in which the inlet and outlet openings are made. The inner wall of the partition contains an outlet located at a greater distance from the shaft axis than the inlet in the outer wall. 4 ill.
In some mechanical assemblies, the distribution of lubricating oil to various components of the assembly through coaxial channels in a rotating shaft is known.
In accordance with the invention, the device for restricting the supply of lubricant through the coaxial channel in the shaft has an organ forming a transverse septum fixed in the specified axial channel, it has an inner side facing the specified channel and an outer side facing the lubricant source, there is a cavity in the specified transverse partition at least one inlet between the outer side and the cavity, at least one grease removal hole between the outer side and the cavity, located on the first race standing along the axis, and at least one outlet between the inner side and the cavity, located at a second distance from the axis. exceeding the first, and the outlet has a predetermined section.
Thus, in accordance with the invention, the jet of oil supplied by the nozzle enters the cavity of the partition, passing through the inlet every time it is in front of the nozzle during the rotation of the shaft, the oil is evenly distributed along the contour of the cavity under the action of centrifugal forces. When the level of oil accumulated in the cavity reaches a radius of the distance from the outlet. oil begins to be fed into the shaft passage channel, if the oil flow rate allowed by the inlet is excessive, then the oil level in the cavity exceeds the outlet, reaches the outlet and stabilizes at the level of this
1828527 AZ of the oil drain hole, since any excess amount of oil is supplied to the outside of the partition through this hole.
The oil flow rate through the outlet into the coaxial shaft channel is thus very precisely limited, on the one hand, by the cross section of the outlet, and, on the other hand, by the thickness of the oil layer between the outlet and the outlet, and naturally, depending on the speed of rotation of the shaft. This flow rate is practically independent of the pressure difference on both sides of the restrictor.
Figure 1 shows a rotating shaft in which there is a device in accordance with the invention, an axial section: figure 2 is a partial axial section, on a large scale, of the main element of the invention; in Fig.3 is a partial side view along arrow F of the element in Fig.2; figure 4 is a simplified version of the device.
As can be seen from figure 1, the shaft 10 with the axis X-X rotates in bearings 14,16 in the housing. 12.12 '.
A coaxial channel 18 intersects the shaft 10, along which a lubricating fluid is supplied to elements mechanically connected to the shaft.
In the passage channel 18 there is a section with internal slots 22, which are designed to engage with the outer slots of the driven shaft, which is not shown here, which enters the passage channel 18 of the shaft 10 through the end located on the left in the figure.
Lubricating fluid enters through a movable nozzle 24. mounted on the housing opposite the other end of the shaft 10, to the right in the figure, it is supplied in the form of a jet 26, exactly parallel to the axis X-X and indicated in the form of an arrow F. The nozzle can also be at a distance from the axis X -X. as shown in the figure, or it can be located on the x-axis,
In channel 18 opposite the jet. 24, a flow limiter 28 is fixed in accordance with the present invention and described in more detail below.
Between the flow rate limiter and the spline portion of the passage channel in the channel there is an expanded section 30, which forms the accumulation and distribution zone of the lubricating fluid, it is located between two protrusions at the ends of the broadened section, the first protrusion 32 along the course (fluid flow). from the side of the splined section 20, and the second protrusion along the liquid 32 from the side of the flow limiter.
As you know, the liquid after the passage of the flow limiter to the left of the passage channel is distributed along the perimeter of the expanded section of the channel under the action of centrifugal force and generally flows in the longitudinal direction when its level exceeds the step level 32.
In conventional apparatuses, the nozzle 24 directs the liquid directly to the wide area 30 of the passage 18, so that the liquid rate is equal to the rate of the nozzle 24. Since the rate of the nozzle is difficult to control, the rate is usually set to be excessive compared to what is necessary, which is not always desirable.
The flow limiter 28 in accordance with the invention, shown in more detail in FIGS. 2 and 3, has a partition 36 transversely fixed in the passage channel 18, so that this partition has an outer side 38 opposite the jet 24 and an inner side 40 opposite the passage channel 18.
In the partition 36 there is an internal cavity 42, a cylindrical groove in diameter, passing through the partition 36 through and located perpendicular to the axis XX.
A water opening 44 is connected to the cavity 42, which is made on the outside 38 of the partition. As can be seen from FIG. 3, this inlet may be a radial slot that forms an elongated hole approximately centered relative to the nozzle. With each revolution of the shaft, the slot passes once in front of the nozzle, and a certain amount of liquid is supplied to the cavity 42.
A cavity 42 also communicates with a hole for removing liquid 46, also done in the outer side 38 of the partition 36, with a cavity 42 communicates an outlet 48 made in the inner side 40 of the partition.
The removal hole 46 is located at a first predetermined distance from the axis XX, and the opening of the exit 48 is located at a second defined distance from the same axis XX, this distance exceeds the first distance. The outlet 48 has a relatively small cross section, so that the liquid is discarded to the ends of the cavity 42 under the action of centrifugal force and accumulates there until it radially, in the direction from the axis XX, exceeds the level of the outlet 48 and until the level of the removal hole 46 is not reached.
Thus, the flow rate of the lubricant passing through the outlet 48. will be precisely limited.
This flow rate is a function of many parameters that can be set when designing the shaft:
- shaft rotation speed;
- section and length of the outlet 48;
- the distance, with respect to the axis XX, of the outlet 48 and the opening for removal 46.
In the illustrated embodiment, the partition has a second opening for removal 50 in the area diametrically opposite to the first opening for removal. This second hole is designed so that the level of lubricating fluid accumulating at this end of the cavity 42 does not approach the axis. it serves to ensure that the amount of fluid is equal to the amount of fluid that is constantly on the other end of the cavity, this is necessary for better balancing of the shaft.
As is well known to those skilled in the art, balancing the septum 36 with respect to the axis of rotation is provided by appropriate methods.
It should be noted that the oil flow rate is practically independent of the pressure difference on both sides of the partition 36.
The flow rate is also ensured even if the pressure from the sides from the inside of the partition 40 exceeds the pressure from the outside 38.
Naturally, this invention may have many options known to specialists:
- the inlet 44 may be in the center of the partition 36;
- instead of one inlet 44, there may be two or more evenly spaced around the axis (XX);
- it is possible to provide several outlet openings 49 and / or several openings for removal 46, evenly spaced around the axis XX.
Figure 4 shows a particularly simplified embodiment, the cavity 42 has the shape (body) of rotation around the axis XX. for example, by realizing a partition 36 of two adjacent parts: a flat disk 50 through which the exit hole e or exit holes 48 pass, and a flange 52 in the form of an outer cylindrical ring 54 and a radial ring 56 with a circular hole 58 in its center. The central part of the hole forms the inlet 44, and the edge of the hole forms the removal hole 46.
Thanks to the invention, it is not only the flow rate of the lubricating oil supplied to the lubricated organs that is limited to the exact amount, in addition, in case of damage to the seals or other sealing devices in the loss circuit. The oils cannot exceed the flow rate set by the limiter.

权利要求:
Claims (1)
[1]
Claim
A device for restricting the supply of lubricant through the coaxial channel of a rotating shaft, including a lubricant source in the form of a nozzle, characterized in that the device further comprises a partition fixed in the coaxial channel with a cavity bounded by internal and external walls, while the nozzle is placed on the side of the shaft end and faces to the outer side of the outer wall, which has at least one inlet and at least one outlet, and the inner wall of the partition includes at least one outlet Noe hole, the latter being disposed on the shaft axis at a greater distance. than the inlet in the outer wall.
30 28
Figure 4

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引用文献:

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---

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---

US2874803A|1955-07-26|1959-02-24|United Aircraft Corp|Lubrication means|

---

US2911267A|1957-11-12|1959-11-03|United Aircraft Corp|Failsafe bearing lubrication|

---

US2999000A|1960-04-14|1961-09-05|Spat Melvin|Lubricating arrangement for co-axial shafts|

---

GB989477A|1964-01-30|1965-04-22|Rolls Royce|Bearing assembly|

---

US3326423A|1964-03-23|1967-06-20|Bristol Siddeley Engines Ltd|Device for distributing liquids|

---

FR2005008A1|1968-03-29|1969-12-05|Rolls Royce|Lubrication system for pieces of machinery|

---

US4013141A|1975-10-16|1977-03-22|General Electric Company|Means for lubricating a mechanism disposed within a rotating shaft|

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US4567784A|1983-03-31|1986-02-04|Dresser Industries, Inc.|Method and apparatus for lubricating a transmission|JP3017759B2|1989-11-15|2000-03-13|アイシン・エィ・ダブリュ株式会社|Bearing lubrication structure for rotating members of automatic transmission|

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法律状态:
2010-08-20| REG| Reference to a code of a succession state|Ref country code: RU Ref legal event code: MM4A Effective date: 20090713 |

优先权:

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申请号 | 申请日 | 专利标题

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FR8909370A|FR2649754B1|1989-07-12|1989-07-12|DEVICE FOR LIMITING LUBRICANT FLOW THROUGH A ROTATING SHAFT|

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PCT/FR1990/000523|WO1991000977A1|1989-07-12|1990-07-12|Device to limit the flow of lubricant through a rotating shaft|

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