CN109854730B - Gear train self-lubricating device - Google Patents
Gear train self-lubricating device Download PDFInfo
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- CN109854730B CN109854730B CN201910141013.3A CN201910141013A CN109854730B CN 109854730 B CN109854730 B CN 109854730B CN 201910141013 A CN201910141013 A CN 201910141013A CN 109854730 B CN109854730 B CN 109854730B
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- swash plate
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Abstract
The invention discloses a gear train self-lubricating device, which comprises: the oil distribution device comprises a gear shaft, a gear, a first shell, a second shell, a swash plate, a plunger and an oil distribution disc. The gear is rotationally sleeved on the gear shaft, and the first shell and the second shell are respectively arranged on two sides of the gear. The swash plate is arranged on the inner wall of the first shell, and the thickness of the swash plate gradually changes along the circumferential direction. The gear is provided with a plunger hole along the axial direction, the plunger is positioned in the plunger hole and supported by the elastic piece, and the top end of the plunger is abutted against the swash plate in the rotation process of the gear. The oil distribution disc is arranged on the inner wall of the second shell and communicated with the bottom end of the plunger hole and used for feeding oil into the plunger hole or discharging lubricating oil in the plunger hole. The gear train self-lubricating device of the invention transfers the lubricating oil from one side of the oil distribution disc to the other side along with the rotation of the gear, thereby achieving the purpose of lubrication. The pump does not need to pump pressure additionally, the structure is simple, the volume of the equipment is reduced, and the application range is wide.
Description
Technical Field
The invention relates to the technical field of mechanical transmission, in particular to a gear train self-lubricating device.
Background
In industrial transmission systems, the gear ratio is large, and is one of the main transmission forms at present, such as gear boxes, synchronous gears and the like in transportation equipment. In gear transmission equipment, in order to contact well between each part and prolong service life, it is necessary to lubricate a transmission gear.
The prior art lubricates in the following way: lubricating oil is input into the gear box through an external lubricating pump system, a gear pump and the like for forced lubrication.
The inventor finds that the prior art has at least the following problems: the forced lubrication through the external lubricating pump system occupies a large space and cannot be applied to a work site with a small space.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a gear train self-lubricating device. The specific technical scheme is as follows:
a gear train self-lubricating apparatus, the apparatus comprising: the oil distribution device comprises a gear shaft, a gear, a first shell, a second shell, a swash plate, a plunger and an oil distribution disc; the gear rotationally the suit is in on the gear shaft, first casing with the second casing sets up respectively the both sides of gear: the swash plate is arranged on the inner wall of the first shell, and the thickness of the swash plate is gradually changed along the circumferential direction; the gear is provided with a plunger hole along the axial direction, the plunger is positioned in the plunger hole and supported by an elastic piece, and the top end of the plunger is abutted against the swash plate in the rotation process of the gear; the oil distribution disc is arranged on the inner wall of the second shell, is communicated with the bottom end of the plunger hole and is used for feeding oil into the plunger hole or discharging lubricating oil in the plunger hole.
In one possible design, an oil inlet groove and an oil outlet groove are formed in the oil distribution disc, an oil inlet is formed in the oil inlet groove and is opposite to the position with the smallest thickness of the swash plate, an oil outlet is formed in the oil outlet groove and is opposite to the position with the largest thickness of the swash plate, and the bottom end of the plunger hole is communicated with the oil inlet groove or the oil outlet groove in the gear rotating process.
In one possible embodiment, the oil distribution disc is provided with radial bores for connecting the interior of the oil distribution disc to the environment.
In one possible design, an annular groove is formed in the side face of the gear, a wear-resisting plate is arranged in the annular groove and is in contact with the oil distribution disc, an oil hole coaxial with the plunger hole is formed in the wear-resisting plate, and the bottom end of the plunger hole is communicated with the oil distribution disc through the oil hole.
In one possible design, a rubber gasket is provided between the bottom end of the oil distribution disc and the second housing.
In one possible embodiment, the plunger is provided at its top end with a sliding shoe, by means of which the plunger abuts against the swash plate.
In one possible design, the device further includes a plunger sleeve within which the plunger is disposed.
In a possible design, an oil passage is provided on the second housing, and the oil passage communicates with the oil outlet for delivering the lubricating oil to the area to be lubricated.
In a possible design, the swash plate is of a square structure, and a square counter bore matched with the swash plate is arranged on the first shell.
In one possible design, a bearing is arranged between the gear and the gear shaft.
The technical scheme of the invention has the following main advantages:
according to the gear train self-lubricating device, the swash plate with different thicknesses is arranged to abut against the top end of the plunger, the plunger moves up and down under the driving of the swash plate and the elastic piece in the process of rotating along with the gear, lubricating oil is extracted and discharged in the moving process, and the lubricating oil is transferred from one side of the oil distribution disc to the other side of the oil distribution disc in the process of rotating along with the gear, so that the purpose of lubricating is achieved. The transfer power is provided by the pressure difference generated by the rotation of the gear, the self-lubrication of the gear train is completed by the self-driving of the gear, the pressure is not required to be pumped additionally, the structure is simple, the size of the equipment is reduced, and the application range is wide.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a gear train self-lubricating apparatus according to an embodiment of the present invention;
FIG. 2 is a top plan view of an oil distribution pan in a gear train self-lubricating apparatus provided in accordance with one embodiment of the present invention;
FIG. 3 is a schematic view of a gear structure of a gear train self-lubricating apparatus according to an embodiment of the present invention;
FIG. 4 is a top plan view of a swashplate in a gear train self-lubricating apparatus provided in accordance with an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a swash plate in a gear train self-lubricating apparatus provided in accordance with an embodiment of the present invention.
Description of reference numerals:
1-gear shaft, 2-gear, 3-first shell, 4-second shell, 5-swash plate, 6-plunger, 7-oil distribution disc, 71-oil inlet groove, 72-oil outlet groove, 7 a-oil inlet, 7 b-oil outlet, 7 c-perforation, 8-plunger hole, 9-elastic piece, 10-annular groove, 11-wear plate, 12-rubber gasket, 13-sliding shoe, 14-plunger sleeve and 15-bearing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.
An embodiment of the present invention provides a gear train self-lubricating device, as shown in fig. 1 to 5, including: gear shaft 1, gear 2, first casing 3, second casing 4, swash plate 5, plunger 6 and join in marriage oil pan 7. The gear 2 is rotatably sleeved on the gear shaft 1, and the first shell 3 and the second shell 4 are respectively arranged on two sides of the gear 2. The swash plate 5 is provided on the inner wall of the first housing 3, and the thickness of the swash plate 5 is gradually changed in the circumferential direction. The gear 2 is provided with a plunger hole 8 along the axial direction, the plunger 6 is positioned in the plunger hole 8 and supported by an elastic part 9, and the top end of the plunger 6 is abutted against the swash plate 5 in the rotating process of the gear 2. The oil distribution disc 7 is arranged on the inner wall of the second shell 4, communicated with the bottom end of the plunger hole 8 and used for feeding oil into the plunger hole 8 or discharging lubricating oil in the plunger hole 8.
The working principle of the gear train self-lubricating device provided by the embodiment of the invention is explained as follows:
the top end of the plunger 6 is contacted with the swash plate 5, and in the rotating process of the gear 2, the plunger 6 rotates along with the gear 2, and the thickness of the swash plate 5 contacted with the top end of the plunger 6 is gradually changed. When the plunger 6 rotates, in the process that the top end rotates from the thickest position of the swash plate 5 to the thinnest position of the swash plate 5, the plunger 6 gradually moves upwards, and lubricating oil in the oil distribution disc 7 enters the plunger hole 8 from the bottom end of the plunger hole 8 under the action of hydraulic pressure. When the top end of the plunger 6 rotates from the thinnest position of the swash plate 5 to the thickest position of the swash plate 5, the plunger 6 gradually moves downwards, and lubricating oil in the plunger hole 8 enters the oil distribution disc 7, is discharged through the oil distribution disc 7 and flows to an area to be lubricated.
It can be seen that, in the gear train self-lubricating device provided by the embodiment of the invention, the swash plate 5 with different thicknesses is arranged to abut against the top end of the plunger 6, the plunger 6 moves up and down under the driving of the swash plate 5 and the elastic piece 9 in the rotation process of the gear 2, the lubricating oil is extracted and discharged in the moving process, and the lubricating oil is transferred from one side of the oil distribution disc 7 to the other side in the rotation process of the gear 2, so that the purpose of lubrication is achieved. The transfer power is provided by the pressure difference generated by the rotation of the gear 2, the self-lubrication of the gear train is completed by the self-driving of the gear 2, the pressure pumping is not needed additionally, the structure is simple, the equipment volume is reduced, and the application range is wide.
Wherein, the quantity of plunger hole 8 and plunger 6 can be one or more, and the quantity of plunger 6 is more, and the lubricating oil that gear 2 rotated the in-process at every turn is more, and the staff can set up suitable plunger hole 8 quantity according to site work condition and lubricated demand etc. to reach good lubricated effect.
As for the structure of the oil distribution pan 7, the following is exemplified: as shown in fig. 2, the oil distribution disc 7 is provided with an oil inlet groove 71 and an oil outlet groove 72, the oil inlet groove 71 is provided with an oil inlet 7a, the oil inlet 7a is opposite to the position with the minimum thickness of the swash plate 5, the oil outlet groove 72 is provided with an oil outlet 7b, the oil outlet 7b is opposite to the position with the maximum thickness of the swash plate 5, and the bottom end of the plunger hole 8 is communicated with the oil inlet groove 71 or the oil outlet groove 72 in the rotation process of the gear 2.
With the arrangement, when the plunger 6 rotates along with the gear 2 and the plunger 6 rotates, the plunger 6 gradually moves upwards in the process that the top end rotates from the thickest position of the swash plate 5 to the thinnest position of the swash plate 5, and the bottom end of the plunger hole 8 gradually pumps oil through the oil inlet groove 71. When the plunger 6 rotates, in the process that the top end rotates from the thinnest position of the swash plate 5 to the thickest position of the swash plate 5, the plunger 6 gradually moves downwards, and the bottom end of the plunger hole 8 gradually discharges oil through the oil outlet groove 72. The oil inlet 7a is communicated with the oil inlet groove 71 to facilitate the conveying of lubricating oil into the oil inlet groove 71, the oil outlet 7b is communicated with the oil outlet groove 72, and the lubricating oil is discharged through the oil outlet 7 b.
Wherein, the position of the oil inlet 7a can be positioned at the bottom end of the oil distribution disc 7 so as to still extract the lubricating oil when the amount of the lubricating oil is small.
It is understood that the oil inlet groove 71 and the oil outlet groove 72 are annular grooves to match the rotation locus of the plunger 6.
In the embodiment of the invention, the bearing 15 is arranged between the gear 2 and the gear shaft 1, so that the gear 2 can rotate conveniently. Further, the oil distribution pan 7 is provided with a through hole 7c in a radial direction for communicating an inner space of the oil distribution pan 7 with the outside. The bearing 15 sleeved inside the oil distribution disc 7 can be communicated with the outside by arranging the through hole 7c along the radial direction, and the lubricating oil flows to the bearing 15 through the through hole 7c to lubricate the bearing 15.
In the rotating process of the gear 2, sliding friction is generated between the gear 2 and the oil distribution disc 7, and in order to avoid damage to the gear 2 or the oil distribution disc 7, as shown in the attached drawing 3, an annular groove 10 is formed in the side face of the gear 2, a wear-resistant plate 11 is arranged in the annular groove 10, the wear-resistant plate 11 is in contact with the oil distribution disc 7, an oil hole coaxial with the plunger hole 8 is formed in the wear-resistant plate 11, and the bottom end of the plunger hole 8 is communicated with the oil distribution disc. By arranging the wear plate 11, sliding friction occurs between the wear plate 11 and the oil distribution disc 7, and wear is avoided.
The width of the annular groove 10 may be larger than the diameter of the plunger hole 8, so that the wear-resistant plate 11 has a good protection effect on the plunger hole 8. The diameter of the oil hole can be the same as that of the plunger hole 8, and the flowing efficiency of lubricating oil is not influenced. Or the diameter of the oil outlet 7b can be larger than that of the plunger hole 8, the oil hole is of an expanding structure with the inner diameter gradually increasing from top to bottom, the diameter of the top end of the oil hole is the same as that of the plunger hole 8, and the diameter of the bottom end of the oil hole is the same as that of the oil outlet 7b, so that lubricating oil can flow conveniently.
In order to provide good contact between the oil distribution pan 7 and the wear plate 11, a rubber gasket 12 is provided between the bottom end of the oil distribution pan 7 and the second housing 4, as shown in fig. 1. The rubber gasket 12 has certain elasticity and plays a supporting role for the oil distribution disc 7, so that the contact between the oil distribution disc 7 and the wear-resisting plate 11 is good, and the lubricating oil is prevented from leaking between the oil distribution disc 7 and the wear-resisting plate 11.
In the transmission process of the gear 2, the top end of the plunger 6 generates sliding friction with the swash plate 5, and in order to avoid damage to the swash plate 5 or the plunger 6, as shown in fig. 1, the top end of the plunger 6 is provided with a slipper 13, and the plunger 6 is abutted against the swash plate 5 through the slipper 13. By providing the shoe 13, the shoe 13 and the swash plate 5 are subjected to sliding friction, and abrasion is prevented.
In the embodiment of the invention, the plunger 6 is positioned in the plunger hole 8, and lubricating oil is sucked or discharged through the up-and-down movement of the plunger 6, and optionally, the gear train self-lubricating device provided by the embodiment of the invention further comprises a plunger sleeve 14, and the plunger 6 is arranged in the plunger sleeve 14. By providing the plunger sleeve 14, the sealing performance is improved and the operational reliability is improved.
In the embodiment of the present invention, the plunger 6 moves up and down during rotation under the driving of the elastic member 9 and the swash plate 5, the elastic member 9 is used for providing an upward elastic force to the plunger 6, and the elastic member 9 may be a spring installed in the plunger 6, for example.
In the embodiment of the invention, one side of the oil distribution disc 7 is used for supplying oil, and the other side of the oil distribution disc is used for discharging oil, and it can be understood that an oil inlet 7a of the oil distribution disc 7 is communicated with an oil inlet channel or a certain amount of lubricating oil is stored on one side of the oil distribution disc 7. After the lubricating oil is transported to the other side through the plunger hole 8, the second shell 4 is provided with an oil passing channel which is communicated with the oil outlet 7b and used for conveying the lubricating oil to an area to be lubricated.
The oil passage can be obtained by processing an oil conveying groove on the second shell 4 and the like, and can also convey lubricating oil to a region to be lubricated in an external oil pipe mode.
In the embodiment of the present invention, the swash plate 5 is disposed on the first housing 3, and the top end of the plunger 6 is always in contact with the swash plate 5 during the rotation of the gear 2, it can be understood that the swash plate 5 is a hollow annular structure and is coaxial with the gear shaft 1, and the swash plate 5 may be provided with an annular slipper 13 rail so as to be in contact with the slipper 13.
Further, in order to avoid the relative rotation of the swash plate 5 with respect to the first housing 3, the swash plate 5 is of a square structure, and a square counter bore matched with the swash plate 5 is formed in the first housing 3. With the arrangement, the limiting effect is better, the swash plate 5 is prevented from rotating, and the use stability is improved.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, "front", "rear", "left", "right", "upper" and "lower" in this document are referred to the placement states shown in the drawings.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A gear train self-lubricating apparatus, the apparatus comprising: gear shaft, gear, first casing, second casing, the gear rotationally the suit is in on the gear shaft, first casing with the second casing sets up respectively the both sides of gear, its characterized in that, the device still includes sloping cam plate, plunger and joins in marriage the food tray, wherein:
the swash plate is arranged on the inner wall of the first shell, and the thickness of the swash plate is gradually changed along the circumferential direction;
the gear is provided with a plunger hole along the axial direction, the plunger is positioned in the plunger hole and supported by an elastic piece, and the top end of the plunger is abutted against the swash plate in the rotation process of the gear;
the oil distribution disc is arranged on the inner wall of the second shell, is communicated with the bottom end of the plunger hole and is used for feeding oil into the plunger hole or discharging lubricating oil in the plunger hole.
2. The gear train self-lubricating device of claim 1, wherein the oil distribution disc is provided with an oil inlet groove and an oil outlet groove, the oil inlet groove is provided with an oil inlet, the oil inlet is opposite to the position with the smallest thickness of the swash plate, the oil outlet groove is provided with an oil outlet, the oil outlet is opposite to the position with the largest thickness of the swash plate, and the bottom end of the plunger hole is communicated with the oil inlet groove or the oil outlet groove during the rotation of the gear.
3. Gear train self-lubricating arrangement according to claim 1 or 2, characterised in that the oil distribution disc is provided with a radial perforation for communicating the inner space of the oil distribution disc with the outside.
4. The gear train self-lubricating apparatus of claim 1, wherein the gear has an annular groove formed in a side surface thereof, and a wear plate is disposed in the annular groove and contacts the oil distribution plate, and the wear plate has an oil hole coaxial with the plunger hole, and a bottom end of the plunger hole communicates with the oil distribution plate through the oil hole.
5. The gear train self-lubricating apparatus of claim 4, wherein a rubber gasket is disposed between the bottom end of the oil distribution pan and the second housing.
6. The gear train self-lubricating apparatus of claim 1, wherein the top end of the plunger is provided with a slipper by which the plunger abuts the swash plate.
7. The gear train self-lubricating apparatus of claim 1, further comprising a plunger sleeve within which the plunger is disposed.
8. The gear train self-lubricating apparatus of claim 2, wherein the second housing is provided with an oil passage communicating with the oil outlet for delivering lubricating oil to an area to be lubricated.
9. The gear train self-lubricating apparatus of claim 1, wherein the swash plate is of square configuration and the first housing has a square counterbore to accommodate the swash plate.
10. The gear train self-lubricating apparatus of claim 1, wherein a bearing is disposed between the gear and the gear shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910141013.3A CN109854730B (en) | 2019-02-26 | 2019-02-26 | Gear train self-lubricating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910141013.3A CN109854730B (en) | 2019-02-26 | 2019-02-26 | Gear train self-lubricating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109854730A CN109854730A (en) | 2019-06-07 |
| CN109854730B true CN109854730B (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910141013.3A Active CN109854730B (en) | 2019-02-26 | 2019-02-26 | Gear train self-lubricating device |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05172220A (en) * | 1991-12-18 | 1993-07-09 | Daihatsu Motor Co Ltd | Reverse idler gear lubricating structure of transmission |
| WO2014031751A2 (en) * | 2012-08-21 | 2014-02-27 | Nexen Group, Inc. | Strain wave gear system |
| CN202991401U (en) * | 2012-12-11 | 2013-06-12 | 浙江长盛滑动轴承股份有限公司 | Sloping cam plate provided with wear-resistant coating and oil hole or oil groove |
| CN105526340B (en) * | 2015-12-23 | 2018-06-15 | 北京联合大学 | A kind of hydrodynamic lubrication swash plate helical gear contiuously variable transmission |
| CN205689718U (en) * | 2016-06-15 | 2016-11-16 | 泰州进鑫机械有限公司 | Self-lubricating internal gear with oil cylinder |
| CN108869023B (en) * | 2016-08-20 | 2020-05-01 | 泉州鑫豪工程机械科技有限公司 | Self-lubricating system of power takeoff |
| CN207687318U (en) * | 2017-12-18 | 2018-08-03 | 泰尔重工股份有限公司 | A kind of transmission shaft lubricating arrangement |
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2019
- 2019-02-26 CN CN201910141013.3A patent/CN109854730B/en active Active
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