• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a lubricant dispenser having a lubricant cartridge (1), which has a lubricant storage space (2) having an outlet opening (3) for lubricant (4), a carrier (5) which is connected to the lubricant cartridge (1) in a detachable manner and accommodates a battery-operated motor (6) for driving a spindle (7), and a plunger (8) connected to the spindle (7) for ejecting the lubricant (4), wherein an output shaft (9) of the motor (6) is connected to the spindle (7) by means of an adapter (10) and wherein the adapter (10) is mounted in a rotationally movable manner in an accommodation space (11) of the carrier (5) that is open towards the lubricant cartridge (1). A rolling bearing (12), which is arranged between the carrier (5) and the adapter (10), is provided as the bearing of the adapter (10). The adapter (10) is secured axially against falling out of the accommodation space by means of a retaining means (13) that is fastened to the carrier (5) and preferably designed as a lid.
    公开号:AU2012364458A1
    申请号:U2012364458
    申请日:2012-12-12
    公开日:2014-08-21
    发明作者:Kuno Buhner；Egon Eisenbacher；Manfred Grom
    申请人:perma tec GmbH and Co KG；
    IPC主号:F16N11-08
    专利说明:
    30707 SN 14/352,046 Transl. of W02013/102538 LUBRICANT DISPENSER The invention relates to a lubricant dispenser comprising a lubricant cartridge having a lubricant storage space with an outlet port for lubricant, a support detachably connected to the 5 lubricant cartridge and holding a battery-operated motor for driving a spindle, and a piston for ejecting the lubricant connected to the spindle, a drive shaft of the motor being connected to the spindle by an adapter that is rotatable in a seat of the support open toward the lubricant cartridge. o Such lubricant dispensers are known from practice and from DE 29 715 808 [US 5,971,229]. They are used, for example, for the precise lubrication of equipment parts such as rolling and sliding bearings, linear guides, chains and the like. The lubricant dispensers are connected, for example, to a lubricating 5 point of a bearing and can deliver lubricants as a function of the running time of a machine or at predetermined time intervals. WO 2010/026559 discloses a lubricant dispenser for a radio-controlled lubricating system. The basic structure of the lubricant dispenser includes a lubricant cartridge containing o lubricant, and a battery-operated dispensing mechanism. The latter comprises a piston for forcing lubricant from the cartridge and an actuator mechanism for moving the piston. During discharge of lubricant, substantial internal pressure is produced in the lubricant storage space. This internal 5 pressure results in an axial force that is transferred via the spindle to the adapter and must be absorbed by an axial bearing. 30707TR1.WPD 30707 SN 14/352,046 Transl. of W02013/102538 In the known design, the adapter is supported on a sliding disk. As a result of the rotational movement of the adapter under simultaneous force effect, frictional forces arise between the adapter and the sliding disk. The frictional forces between the 5 adapter and the sliding disk can also be increased by contaminants between the disk and the adapter. The drive motor is heavily loaded, with the forces applied to the bearing of the adapter and the resulting torques making a dominant contribution. As the loading of the motor increases, so does the consumption of energy. 10 Furthermore, it has been observed in practice that the motors used for providing the drive were already worn out after emptying only a few cartridges. It is the object of the invention to reduce the forces and torques acting on the motor of the spindle drive in a lubricant is dispenser with the features described above to increase the service life of the motor and reduce energy consumption. The object is achieved by a lubricant dispenser according to claim 1. According to the invention, a roller bearing is provided 20 as a support for the adapter and lies between the support and the adapter, and the adapter is secured axially against falling out of the seat by a retaining element attached to the support. The retaining element only acts on the adapter as long as no pressure builds up on the interior of the lubricant cartridge. As soon as :5 the lubricant dispenser is put in operation and backpressure occurs as a result of an ejecting movement of the piston against the piston surface, the adapter is released by the retaining element - 2 - 30707TR1,WPD 30707 SN 14/352,046 Transl. of W02013/102538 and a gap forms between the retaining element and the adapter, thus ensuring contact-free, friction-free and wear-free rotation of the adapter on the retaining element. As a result of the adapter bearing according to the s invention, the source of friction described above is nearly eliminated. A slight torque is now necessary in order to overcome the sum of the frictional forces. The motor used, which is preferably an electric geared motor, bears less of a load as a result, thus reducing motor damage and increasing the reliability 1o of the lubricant dispenser overall. Moreover, it is possible to use lower-performance motors in the lubricant dispenser that are not only less expensive but also require less current and less installation space. By virtue of the design according to the invention, power consumption can be reduced. Overall, the energy t5 efficiency is increased as a result of the reduction of mechanical losses. One effect of the teaching according to the invention is that less battery capacity is required to empty the lubricant cartridge. This results in decreased environmental impact. A smaller battery can be used to operate the lubricant dispenser o compared to the prior art. Furthermore, the teaching according to the invention can be used to deliver a larger quantity of lubricant while using a given conventional battery, or to ensure the secure delivery of lubricant at lower operating temperatures. This improves the possible applications of the lubricant dispenser in 5 the open at low temperatures. Preferably, the retaining element consists of a cap that is attached to the support and has a hole through which the spindle - 3 - 30707TR1.WPD 30707 SN 14/352,046 Transl. of W02013/102538 extends, the edge of the hole projecting over the outer edge of the adapter provided in the seat, thus securing it axially. This is of particular importance when changing the lubricant cartridge in order to fill it with new lubricant or for any maintenance work, 5 since the adapter must be prevented from falling off during disassembly of the lubricant dispenser. The retaining element of cup shape has two functions. For one, it has the described retaining function for the adapter and, for another, it has the function of protecting the roller 10 bearing. If the lubricant dispenser is idle, the adapter lies against the edge of the hole of the cap. As a result, sliding-off of the adapter in the direction of the lubricant cartridge is ruled out. What is more, no contaminants can penetrate the space between the adapter and the edge, so the seat and particularly the roller 15 bearing are protected from contamination. As described at the outset, the adapter is moved minimally axially during delivery, so there is no contact between the adapter and the cap under the load of the lubricant dispenser. This ensures frictionless rotation of the adapter during operation of the lubricant dispenser. 0 Preferably, the cap is cup-shaped and is detachably connected to the support by a snap-on connection or a screw connection. The detachable connection is selected here such that a sliding-off of the adapter is not possible, even when considering the weight of the coupled spindle, the piston and the roller 5 bearing. The cap lies against a front face of the support turned toward the lubricant cartridge and is thus integrated into the lubricant dispenser in a space-saving manner. - 4 - 30707TR1.WPD 30707 SN 14/352,046 Transl. of W02013/102538 Different bearings can be used as roller bearings. Preferably, an axial grooved ball bearing or an axial roller bearing is provided. The roller bearing advantageously has a race ring and two bearing disks equipped with rolling elements, with 5 tracks for the rolling elements formed in the bearing disks. One bearing disk is supported on the support and another on the adapter, the bearing disk supported on the support being stationary during delivery of the lubricant and the bearing disk supported on the adapter being fixed to and rotational with the adapter. The 10 roller bearings are characterized by very low wear and a long service life and can absorb great axial forces. The support has a front face turned toward the lubricant cartridge and a rear end facing away from the lubricant cartridge. An attachment with control electronics is provided on the rear end LS of the support. The retaining element provided on the front face of the support, the support and the attachment are preferably connected to a drive module by screws that extend through holes of the support. Advantageously, the lubricant dispenser can be opened, for example in order to refill the lubricant cartridge with o lubricant, without the possibility of the objects integrated in the module falling off. Loss and damage are therefore ruled out. The attachment is firmly provided in a housing cover that is detachably connected to the lubricant cartridge. In addition, a battery compartment is provided in the 5 support for accommodating at least one battery for supplying power to the control electronics and motor. The power source used in the battery compartment is advantageously fixed by a detent. - 5 - 30707TR1.WPD 30707 SN 14/352,046 Transl. of W02013/102538 The housing cover lies against an edge of the lubricant cartridge and can preferably be braced against the lubricant cartridge by a retaining ring provided on the housing cover. For this purpose, the lubricant cartridge has an external thread and 5 the retaining ring has an internal thread that are screwed together. The housing cover can have stops between which the retaining ring can be moved axially. Loss of the ring is then ruled out. The mounting of the housing cover on the lubricant cartridge is simpler than in the lubricant dispensers known in 10 practice, in which an internal thread is provided on the housing cover. In the lubricant dispenser according to the invention, the housing cover can be mounted in an accurately fitting manner on the lubricant cartridge and be fixed by screwing the ring with the lubricant cartridge. The danger of threads of the lubricant 15 cartridge and of the retaining ring stripping during assembly is low if the internal thread is formed on a dimensionally stable and relatively narrow ring and not on the side of the housing cover, which, for cost-related reasons, is generally thin-walled and made of plastic having moderate dimensional stability. o The piston has a cylindrical collar that, before startup of the lubricant dispenser, engages in an annular space between the support and an inner surface of the lubricant cartridge. The collar and the support are if complementary cross-sectional shape such that they can be pushed over each other in a precisely fitting 5s manner. One advantage resulting from this is that the rear of the spindle is forcibly centered in the adapter. Preferably, the connecting end of the spindle has a polygonal shape. - 6 - 30707TRI.WPD 30707 SN 14/352,046 Transl. of W02013/102538 The invention is explained in further detail below with reference to the schematic drawing, which shows only one exemplary embodiment. FIG. 1 is a longitudinal section through the lubricant 5 dispenser; FIG. 2 is another section through the lubricant dispenser on a plane perpendicular to that of FIG. 1; FIG. 3 is a large-scale view of a detail from FIG. 1; and FIG. 4 shows a roller bearing for use in the lubricant Lo dispenser shown in FIGS. 1 to 3. The basic construction of the lubricant dispenser shown in the figures comprises: a lubricant cartridge 1 having a lubricant storage space 2 with an outlet port 3 for a lubricant 4; a support 5 detachably connected to the lubricant cartridge 1 and 5 housing a battery-driven motor 6 for driving a threaded spindle 7; and a piston 8 connected to the spindle 7 for ejecting the lubricant. The motor 6, which is an electric geared motor in the lubricant dispenser shown, has a drive shaft 9 that is connected to the spindle 7 by an adapter 10. The adapter 10 rotates in a seat o 11 formed in the support 5 and open toward the lubricant cartridge 1. A roller bearing 12 rotationally supports the adapter 10 and is provided between the support 5 and the adapter 10. The adapter 10 is secured axially against falling out of the seat 11 by a retaining element 13 attached to the support 5. 5 According to FIG. 1, the retaining element 13 consists of a cap attached to the support 5. The element fits complementarily over a front face of the support 5 directed toward the lubricant - 7 - 30707TR1.WPD 30707 SN 14/352,046 Transl. of W02013/102538 cartridge 1. The element has a hole 15 through which the spindle 7 and a tapered end piece of the adapter 10 extend (see FIG. 3), with the inner edge 16 of the hole 15 projecting inward past the outer edge 17 of the adapter 10 in the seat 11, thus axially securing the 5 adapter 10. In an unloaded state of the lubricant dispenser, as shown here, a joint surface of the adapter 10 lies against the edge 16 of the hole 15. This is advantageous, particularly when changing the lubricant cartridge, because the adapter 10 then cannot fall out of the seat 11 when the lubricant dispenser is to disassembled. As can be seen in FIG. 1, the cap forming the retaining element 13 is cup-shaped and detachably connected to the support 5 by a screws. As shown, the screws 18 fit through holes extending through the support 5 and are screwed into an attachment 21 on the t5 rear end of the support. The cap-shaped retaining element 13, the support 5 and the attachment 21 are thus connected to a drive module 23 by the screws 18. The attachment 21 is solidly seated in a housing cover 24 that is detachably connected to the lubricant cartridge 1. The o attachment 21 has a control panel 27 for setting up the lubricant dispenser and is equipped with a printed circuit board 31 for the control electronics. Moreover, a display 29 is provided. The control panel 27 extends through an opening 32 on the end of the housing cover 24 and can therefore be viewed and operated from 5 outside the lubricant dispenser. - 8- 30707TR1 .WPD 30707 SN 14/352,046 Transl. of W02013/102538 It can be seen in FIG. 1 that the spindle 7 is of polygonal section at its rear end 34 inserted into a complementary seat 35 of the adapter 10. According to FIG. 2, a battery compartment 36 is provided 5 in the support 5 to hold at least one battery to supply power to the control electronics and the motor 6. Furthermore, FIG. 2 shows that the housing cover 24 lies against an end face 39 of the lubricant cartridge 1 and is detachably braced against the lubricant cartridge 1 by a retaining ring 40 provided on the 10 housing cover 24. To this end, the lubricant cartridge 1 has an external thread and the retaining ring 40 has an internal thread that can be screwed together. The retaining ring 40 is advantageously a dimensionally stable ring and can have a profile on its outer side for improving grip and/or connecting surfaces for is a rotary tool. As can be seen in the figures, the piston 8 has a cylindrical collar 42 that, before startup of the lubricant dispenser, engages in an annular space 43 between the support 5 and the inner surface of the lubricant cartridge 1. The collar and the 20 support 5 are formed such that they are complementary so they can be pushed onto each other and interfit. The roller bearing 12 of the lubricant dispenser shown in the figure is an axial grooved ball bearing and, according to the illustration in FIG. 4, has a race ring 46 equipped with rolling 2s elements 45 and two end disks 47 and 47' formed with tracks for the rolling elements 45. The roller bearing 12 has a central hole through which the drive shaft 9 of the motor 6 passes, with the - 9 - 30707TR1,WPD 30707 SN 14/352,046 Transl. of W02013/102538 drive shaft 9 ending in the adapter 10 and rotationally fixed therein. The disks 47 and 47' are supported on the support 5 and on the adapter 10, respectively, the bearing disk 47' being supported fixedly on the support 5 during delivery of the lubricant 9 4, and the disk 47 on the adapter 10 being fixed on and rotating with the adapter 10 with the rolling elements 45 being set into motion as a result. If the lubricant dispenser is under a load, which is to say if lubricant 4 is being pumped from it, the spindle 7 is driven, as a result of which the piston 8 moves forward toward 10 the outlet port 3. The internal pressure thus produced in the lubricant dispenser results in an axial force that is transferred via the spindle 7 to the adapter 10. As a result of this force, the adapter 10 moves minimally axially and is pressed with force against the roller bearing 12. - 10 - 30707TR1.WPD
    权利要求:
    Claims (10)
    [1] 1. A lubricant dispenser comprising: a lubricant cartridge (1) having a lubricant storage space (2) with an outlet port (3) for lubricant (4), a support (5) detachably connected to the lubricant 5 cartridge (1) and holding a battery-operated motor (6) for driving a spindle (7), and a piston (8) for ejecting the lubricant (4) connected to the spindle (7), a drive shaft (9) of the motor (6) being connected to the spindle (7) by an adapter (10) that is rotatable in a seat 10 (11) of the support (5) open toward the lubricant cartridge (1), characterized in that a roller bearing (12) is provided as a support for the adapter (10) and lies between the support (5) and the adapter (10), and that the adapter (10) is secured axially against falling out of the seat (11) by a ret43aining element (13) i5 attached to the support (5).
    [2] 2. The lubricant dispenser defined in claim 1, characterized in that the retaining element (13) consists of a cap attached to the support (5) and having a hole through which the zo spindle (7) extends, an inner edge (16) of the hole (15) projecting over the outer edge (17) of the adapter (10) in the seat (11), thus axially securing it.
    [3] 3. The lubricant dispenser defined in claim 2, 5 characterized in that the cap is cup-shaped and is detachably connected to the support (5) by a snap-on or a screw connection (18). - 11 - 30707TR1.WPD 30707 SN 14/352,046 Transl. of W02013/102538
    [4] 4. The lubricant dispenser defined in any one of claims 1 to 3, characterized in that the roller bearing (12) is an axial grooved ball bearing or an axial roller bearing. 5
    [5] 5. The lubricant dispenser defined in claim 4, characterized in that the roller bearing (12) has a race ring (46) equipped with rolling elements (45), and two bearing disks (47, 47 ') formed with tracks for the rolling elements (45). 10
    [6] 6. The lubricant dispenser defined in any one of claims 1 to 5, characterized in that the support (5) has a front face turned toward the lubricant cartridge (1) and a rear end facing away from the lubricant cartridge (1), an attachment (21) with Ls control electronics being provided on the rear end of the support (5), the retaining element (13), the support (5) and the attachment (21) on the front face of the support (5) being connected to a drive module (23) by screws (18) that extend through holes in the support (5). 20
    [7] 7. The lubricant dispenser defined in claim 6, characterized in that the support (5) has a battery compartment (36) for at least one battery. :5
    [8] 8. The lubricant dispenser defined in claim 6 or 7, characterized in that the attachment (21) is solidly connected to a 12 - 30707TR1.WPD 30707 SN 14/352,046 Transl. of W02013/102538 housing cover (24) that is detachably connected to the lubricant cartridge (1).
    [9] 9. The lubricant dispenser defined in claim 8, 5 characterized in that the housing cover (24) lies against an end edge (39) of the lubricant cartridge (1) and can be braced against the lubricant cartridge (1) by a retaining ring (40) provided on the housing cover (24).
    [10] 10 10. The lubricant dispenser defined in any one of claims 1 to 9, characterized in that the piston (8) has a cylindrical collar (42) that, before startup of the lubricant dispenser, engages in an annular space (43) between the support (5) and an inner surface of the lubricant cartridge (1). - 13 - 30707TR1 .WPD
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    同族专利:
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    KR20140109960A|2014-09-16|
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    CN103998849B|2016-03-16|
    AU2012364458B2|2017-03-09|
    US9458964B2|2016-10-04|
    CN103998849A|2014-08-20|
    BR112014016395A2|2017-06-13|
    CL2014001738A1|2014-09-12|
    JP5945334B2|2016-07-05|
    DE102012100035B4|2014-06-12|
    KR101607795B1|2016-03-30|
    EP2800922A1|2014-11-12|
    WO2013102538A1|2013-07-11|
    DE102012100035A1|2013-07-04|
    EP2800922B1|2017-11-22|
    US20140374449A1|2014-12-25|
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    法律状态:
    2017-07-06| FGA| Letters patent sealed or granted (standard patent)|
    优先权:
    申请号 | 申请日 | 专利标题
    DE102012100035.2A|DE102012100035B4|2012-01-03|2012-01-03|lubricant dispenser|
    DE102012100035.2||2012-01-03||
    PCT/EP2012/075291|WO2013102538A1|2012-01-03|2012-12-12|Lubricant dispenser|
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