CN214146496U - Self-lubricating structure of speed reducer - Google Patents
Self-lubricating structure of speed reducer Download PDFInfo
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- CN214146496U CN214146496U CN202023172660.8U CN202023172660U CN214146496U CN 214146496 U CN214146496 U CN 214146496U CN 202023172660 U CN202023172660 U CN 202023172660U CN 214146496 U CN214146496 U CN 214146496U
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Abstract
The utility model relates to a lubricated technical field of bearing, a reduction gear is from lubricating structure is disclosed, it includes the reduction gear, the bearing with be used for to the gear pump of interior fuel feeding of bearing, the reduction gear includes the casing, input shaft and output shaft are all installed on the casing of reduction gear and the axis of rotation of input shaft is parallel with the axis of rotation of output shaft, the inner circle of bearing and the coaxial fixed connection of output shaft of reduction gear, the outer lane of bearing and the shell fixed connection of reduction gear, the input shaft of gear pump and the coaxial fixed connection of input shaft of reduction gear, the oil pocket has been seted up in the casing, the feed liquor pipe and the oil pocket intercommunication of gear pump, the drain pipe and the casing of gear pump are connected. This application has the effect that reduces workman work load.
Description
Technical Field
The application relates to the field of bearing lubrication, in particular to a self-lubricating structure of a speed reducer.
Background
The reducer is an independent part consisting of gear transmission, worm transmission and gear-worm transmission enclosed in a rigid shell, and is commonly used as a speed reduction transmission device between a prime mover and a working machine. The reduction gear serves to match the rotational speed and the torque transmission between the prime mover and the working machine or the actuator, and is used in modern machines in a very wide range of applications.
An important part in a bearing speed reducer. Its main function is to support the rotation of the output shaft of the speed reducer and other rotating bodies, reduce the friction coefficient in the movement process and ensure the rotation precision.
The bearing essentially acts as a fixed shaft, allowing it to rotate only, while controlling its axial and radial movement. There are various kinds of bearings, such as a sliding bearing, a joint bearing, a rolling bearing, a deep groove ball bearing, an angular ball bearing, a self-aligning ball bearing, and a thrust roller bearing.
The bearing is in the use, in order to reduce the inside friction and the wearing and tearing of bearing, prevents to burn to glue and discharge frictional heat, cooling, prevents that the bearing is overheated, needs the workman frequently to carry out the operation of oiling to the bearing.
In view of the above-mentioned related art, the inventor thinks that the worker is dependent on the manual work of frequently oiling to the bearing, and the workman work load is great.
SUMMERY OF THE UTILITY MODEL
In order to alleviate the problem that need rely on the workman frequently to oiling to the bearing in the reduction gear use, this application provides a reduction gear self-lubricating structure.
The application provides a reduction gear self-lubricating structure adopts following technical scheme:
the utility model provides a reduction gear is from lubricating structure, includes reduction gear, bearing and is used for the gear pump to fuel feeding in the bearing, the reduction gear includes casing, input shaft and output shaft are all installed on the casing of reduction gear and the axis of rotation of input shaft is parallel with the axis of rotation of output shaft, the inner circle of bearing and the coaxial fixed connection of output shaft of reduction gear, the outer lane of bearing and the casing fixed connection of reduction gear, the input shaft of gear pump and the coaxial fixed connection of input shaft of reduction gear, the oil pocket has been seted up in the casing, the feed liquor pipe and the oil pocket intercommunication of gear pump, the drain pipe and the casing of gear pump are connected.
Through adopting above-mentioned technical scheme, the reduction gear during operation, the input shaft of reduction gear rotates, and the input shaft of reduction gear drives the output shaft rotation of reduction gear, and the input shaft of gear pump rotates under the drive of its coaxial fixed connection's reduction gear input shaft to in pumping the lubricating oil pump in the oil cavity into the bearing, lubricate the bearing, realized the self-lubricating of reduction gear, reduce workman's work load.
Optionally, the speed reducer comprises a speed reducing mechanism, an input shaft of the speed reducer is connected with an output shaft of the speed reducer through the speed reducing mechanism, the speed reducing mechanism comprises an intermediate shaft, two first gears and two second gears, the intermediate shaft is positioned between the input shaft and the output shaft and is rotationally connected with the shell of the speed reducer, the rotation axis of the intermediate shaft is parallel to the rotation axis of the input shaft, the diameter of the first gear is smaller than that of the second gear, one of the first gears is coaxially and fixedly connected with the input shaft, the other first gear is coaxially and fixedly connected with the intermediate shaft, one of the second gears is coaxially and fixedly connected with the intermediate shaft, the other second gear is coaxially and fixedly connected with the output shaft, the first gear on the input shaft is meshed with the second gear on the intermediate shaft, and the first gear on the intermediate shaft is meshed with the second gear on the output shaft.
Through adopting above-mentioned technical scheme, the input shaft of reduction gear rotates and drives the synchronous rotation of the first gear rather than coaxial fixed connection, and the first gear on the reduction gear input shaft is connected with the meshing of the epaxial second gear of jackshaft, therefore the same linear velocity of first gear on the reduction gear input shaft and the epaxial second gear of jackshaft keeps, because the diameter of first gear is less than the diameter of second gear, so the rotational speed of jackshaft is less than the input shaft of reduction gear. Similarly, the rotating speed of the output shaft of the speed reducer is smaller than that of the intermediate shaft, so that secondary speed reduction is realized.
Optionally, the oil chamber is located below the input shaft and the output shaft, and the lowest end of the second gear is located in the oil chamber.
Through adopting above-mentioned technical scheme, set up the oil pocket in the below of input shaft and output shaft, the second gear is lowermost to be located the oil pocket to utilize the lubricating oil of oil pocket to lubricate first gear and second gear, improve the life of first gear and second gear.
Optionally, an oil inlet for injecting oil into the oil cavity is formed in the top of the shell, and the shell is in threaded connection with an oil cover for plugging the oil inlet.
By adopting the technical scheme, the oil inlet is formed in the top of the shell, so that a worker can conveniently add lubricating oil into the oil cavity. The oil filling port is sealed by the oil cover, so that the possibility that external impurities enter the oil cavity through the oil filling port to pollute the lubricating oil is reduced.
Optionally, the bearing is a thrust roller bearing.
Through adopting above-mentioned technical scheme, set up the bearing into thrust roller bearing, thrust roller bearing can bear great axial force to the axial force that the reduction gear output shaft can bear in the increase reduction gear use.
Optionally, the liquid outlet pipe of the gear pump is communicated with a gap between the shell and the thrust roller bearing.
By adopting the technical scheme, after the lubricating oil flows into the gap between the shell and the thrust roller bearing, the lubricating oil enters the thrust roller bearing through the gap between the inner ring and the outer ring of the thrust roller bearing, and the lubricating effect is better.
Optionally, a groove is formed in the surface of the shell, and a reinforcing rib is arranged in the groove.
Through adopting above-mentioned technical scheme, set up the recess on the casing surface to alleviate the quality of speed reducer, make the speed reducer use more convenient. Through set up the strengthening rib in the recess, improve the structural strength of speed reducer casing.
Optionally, a lifting mechanism is arranged at the top of the shell and comprises a plurality of connecting pieces, each connecting piece comprises an annular connecting portion and a columnar mounting portion, and the connecting portions are in threaded connection with the shell.
Through adopting above-mentioned technical scheme, set up hoist mechanism at the casing top, be convenient for hoist and mount the speed reducer, the casing threaded connection of connecting piece and speed reducer, the connecting piece installation with dismantle the convenience.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the gear pump is arranged on the shell of the speed reducer, the input shaft of the gear pump is coaxially and fixedly connected with the input shaft of the speed reducer, the liquid inlet pipe of the gear pump is communicated with the oil cavity arranged in the shell, the liquid outlet pipe of the gear pump is communicated with the gap between the bearing and the shell, and when the speed reducer works, the gear pump pumps lubricating oil in the oil cavity into the bearing under the driving of the input shaft of the speed reducer to lubricate the bearing, so that the self-lubrication of the speed reducer is realized, and the workload of workers is reduced;
2. the oil cavity is arranged below the input shaft and the output shaft, and the lowest end of the second gear is positioned in the oil cavity, so that the first gear and the second gear are lubricated by using lubricating oil in the oil cavity, and the service lives of the first gear and the second gear are prolonged;
3. the oil inlet is formed in the top of the shell, so that a worker can conveniently add lubricating oil into the oil cavity, the oil filling port is sealed by the oil cover, and the possibility that external impurities enter the oil cavity through the oil filling port to pollute the lubricating oil is reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
fig. 2 is a schematic structural view of a reduction mechanism portion of the embodiment of the present application.
Description of reference numerals: 100. a speed reducer; 110. a housing; 111. an oil chamber; 112. an oil inlet; 113. an oil cover; 114. a groove; 115. reinforcing ribs; 120. an input shaft; 130. an output shaft; 140. a speed reduction mechanism; 141. an intermediate shaft; 142. a first gear; 143. a second gear; 200. a thrust roller bearing; 300. a gear pump; 310. a liquid inlet pipe; 320. a liquid outlet pipe; 400. a lifting mechanism; 410. a connecting member; 411. a connecting portion; 412. an installation part.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses reduction gear is from lubricating structure. Referring to fig. 1 and 2, a self-lubricating structure of a decelerator including a decelerator 100, the decelerator 100 including a housing 110, the housing 110 being rotatably connected to an output shaft 130 through a bearing. A speed reduction mechanism 140 is rotatably connected in the housing 110, and the speed reduction mechanism 140 is fixedly connected with the output shaft 130. An input shaft 120 is rotatably connected to a side of the housing 110 away from the output shaft 130, and the input shaft 120 is fixedly connected to a speed reduction mechanism 140. When the speed reducer 100 works, the input shaft 120 rotates, the input shaft 120 is in transmission connection with the output shaft 130 through the speed reducing mechanism 140, and the output shaft 130 is driven by the speed reducing mechanism 140 to rotate at a rotating speed lower than that of the input shaft 120. A gear pump 300 is fixedly connected to the housing 110, and an input shaft 120 of the gear pump 300 is coaxially and fixedly connected to an input shaft 120 of the speed reducer 100. An oil cavity 111 is formed in the shell 110, a liquid inlet pipe 310 of the gear pump 300 is communicated with the oil cavity 111, and a liquid outlet pipe 320 of the gear pump 300 is connected with the shell 110. When the input shaft 120 rotates, the gear pump 300 which is coaxially and fixedly connected with the input shaft 120 is driven to rotate, so that lubricating oil in the oil cavity 111 is pumped into the bearing to lubricate the bearing, self-lubrication of the speed reducer 100 is realized, and the workload of workers is reduced.
Referring to fig. 1, the bearing is a thrust roller bearing 200, an inner ring of the thrust roller bearing 200 is coaxially and fixedly connected to the output shaft 130 of the speed reducer 100, and an outer ring of the thrust roller bearing 200 is fixedly connected to the housing of the speed reducer 100. The axial force which can be borne by the output shaft 130 of the speed reducer 100 in the use process of the speed reducer 100 is increased by selecting the thrust roller bearing 200 which can bear larger axial force. The outlet pipe 320 of the gear pump 300 communicates with the gap between the housing 110 and the thrust roller bearing 200. After the lubricating oil flows into the gap between the housing 110 and the thrust roller bearing 200, the lubricating oil enters the thrust roller bearing 200 through the gap between the inner ring and the outer ring of the thrust roller bearing 200, and the lubricating effect is good.
Referring to fig. 1 and 2, the speed reducing mechanism 140 includes an intermediate shaft 141, the intermediate shaft 141 is located between the input shaft 120 and the output shaft 130, and the intermediate shaft 141 is rotatably connected to the housing 110 of the speed reducer 100, the rotation axis of the intermediate shaft 141 is parallel to the rotation axis of the input shaft 120, and the intermediate shaft 141 is located in the same horizontal plane as the input shaft 120 and the output shaft 130. The reduction mechanism 140 further includes two first gears 142 and two second gears 143, the diameter of the first gears 142 is smaller than that of the second gears 143, one of the first gears 142 is coaxially and fixedly connected with the input shaft 120, the other first gear 142 is coaxially and fixedly connected with the intermediate shaft 141, one of the second gears 143 is coaxially and fixedly connected with the intermediate shaft 141, the other second gear 143 is coaxially and fixedly connected with the output shaft 130, the first gear 142 on the input shaft 120 is engaged with the second gear 143 on the intermediate shaft 141, and the first gear 142 on the intermediate shaft 141 is engaged with the second gear 143 on the output shaft 130. The input shaft 120 of the reducer 100 rotates to drive the first gear 142 coaxially and fixedly connected with the input shaft to synchronously rotate, the first gear 142 on the input shaft 120 of the reducer 100 is meshed with the second gear 143 on the intermediate shaft 141, so that the first gear 142 on the input shaft 120 of the reducer 100 and the second gear 143 on the intermediate shaft 141 keep the same linear velocity, and the rotating speed of the intermediate shaft 141 is less than that of the input shaft 120 of the reducer due to the fact that the diameter of the first gear 142 is less than that of the second gear 143. Similarly, the rotation speed of the reducer output shaft 130 is less than that of the intermediate shaft 141, so that secondary reduction is realized.
Referring to fig. 2, the oil chamber 111 is located below the input shaft 120 and the output shaft 130, and the lowermost end of the second gear 143 is located in the oil chamber 111. By disposing the oil chamber 111 below the input shaft 120 and the output shaft 130, the lowermost end of the second gear 143 is located in the oil chamber 111, so that the first gear 142 and the second gear 143 are lubricated by the lubricating oil in the oil chamber 111, and the service life of the first gear 142 and the second gear 143 is increased.
Referring to fig. 1, an oil inlet 112 for injecting oil into the oil chamber 111 is formed in the top of the housing 110, and an oil cover 113 for blocking the oil inlet 112 is connected to the housing 110 by a thread. An oil inlet 112 is formed in the top of the shell 110, so that a worker can conveniently add lubricating oil into the oil cavity 111. The oil filling port is sealed by the oil cover 113, so that the possibility of pollution of lubricating oil caused by the fact that external impurities enter the oil cavity 111 through the oil filling port is reduced.
Referring to fig. 1, a groove 114 is formed on a surface of the housing 110, and a rib 115 is disposed in the groove 114. The surface of the shell 110 is provided with the groove 114, so that the weight of the speed reducer is reduced, and the speed reducer is more convenient to use. By providing the reinforcing ribs 115 in the grooves 114, the structural strength of the speed reducer case 110 is improved.
Referring to fig. 1, a lifting mechanism 400 is fixedly connected to the top of the housing 110, and the lifting mechanism 400 includes two connecting members 410, and the two connecting members 410 are respectively located at two opposite corners of the top of the housing 110. The connecting member 410 includes an annular connecting portion 411 and a cylindrical mounting portion 412, and the connecting portion 411 is threadedly coupled to the housing 110. Through set up hoist mechanism 400 at casing 110 top, be convenient for hoist and mount the speed reducer, connecting portion 411 and the casing 110 threaded connection of speed reducer, connecting piece 410 installation and dismantlement are convenient.
The implementation principle of the self-lubricating structure of the speed reducer in the embodiment of the application is as follows: when the reducer 100 works, the input shaft 120 of the reducer 100 rotates to drive the first gear 142 coaxially and fixedly connected with the input shaft to synchronously rotate, the first gear 142 on the input shaft 120 of the reducer 100 is meshed with the second gear 143 on the intermediate shaft 141, so that the first gear 142 on the input shaft 120 of the reducer 100 and the second gear 143 on the intermediate shaft 141 keep the same linear velocity, and the rotating speed of the intermediate shaft 141 is less than that of the input shaft 120 of the reducer due to the fact that the diameter of the first gear 142 is less than that of the second gear 143. Similarly, the rotation speed of the reducer output shaft 130 is less than that of the intermediate shaft 141, so that secondary reduction is realized.
The input shaft 120 of the gear pump 300 is coaxially and fixedly connected with the input shaft 120 of the speed reducer, and the input shaft 120 of the gear pump 300 is driven by the input shaft 120 of the speed reducer 100 which is coaxially and fixedly connected with the input shaft to rotate, so that lubricating oil in the oil cavity 111 is pumped into the thrust roller bearing 200 to lubricate the thrust roller bearing 200, self-lubrication of the speed reducer 100 is realized, and the workload of workers is reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a reduction gear is from lubricating structure which characterized in that: comprises a speed reducer (100), a bearing and a gear pump (300) for supplying oil into the bearing, the reducer (100) comprises a housing (110), an input shaft (120) and an output shaft (130), the input shaft (120) and the output shaft (130) are both arranged on a shell (110) of the speed reducer (100) and the rotation axis of the input shaft (120) is parallel to the rotation axis of the output shaft (130), the inner ring of the bearing is coaxially and fixedly connected with the output shaft (130) of the speed reducer (100), the outer ring of the bearing is fixedly connected with a shell (110) of the speed reducer (100), the input shaft (120) of the gear pump (300) is coaxially and fixedly connected with the input shaft (120) of the speed reducer (100), an oil cavity (111) is formed in the shell (110), a liquid inlet pipe (310) of the gear pump (300) is communicated with the oil cavity (111), the liquid outlet pipe (320) of the gear pump (300) is connected with the shell (110).
2. A decelerator self-lubricating structure according to claim 1, wherein: the speed reducer (100) comprises a speed reducing mechanism (140), the speed reducing mechanism (140) comprises an intermediate shaft (141), two first gears (142) and two second gears (143), the intermediate shaft (141) is positioned between the input shaft (120) and the output shaft (130), the intermediate shaft (141) is rotationally connected with the shell (110) of the speed reducer (100), the rotation axis of the intermediate shaft (141) is parallel to the rotation axis of the input shaft (120), the number of teeth of the first gears (142) is smaller than that of the second gears (143), one of the first gears (142) is coaxially and fixedly connected with the input shaft (120), the other one of the first gears (142) is coaxially and fixedly connected with the intermediate shaft (141), one of the second gears (143) is coaxially and fixedly connected with the intermediate shaft (141), and the other one of the second gears (143) is coaxially and fixedly connected with the output shaft (130), a first gear (142) on the input shaft (120) meshes with a second gear (143) on the intermediate shaft (141), and the first gear (142) on the intermediate shaft (141) meshes with the second gear (143) on the output shaft (130).
3. A decelerator self-lubricating structure according to claim 2, wherein: the oil chamber (111) is positioned below the input shaft (120) and the output shaft (130), and the lowest end of the second gear (143) is positioned in the oil chamber (111).
4. A decelerator self-lubricating structure according to claim 3, wherein: an oil inlet (112) for injecting oil into the oil cavity (111) is formed in the top of the shell (110), and an oil cover (113) for blocking the oil inlet (112) is connected to the shell (110) in a threaded mode.
5. A decelerator self-lubricating structure according to claim 1, wherein: the bearing is a thrust roller bearing (200).
6. A decelerator self-lubricating structure according to claim 5, wherein: and a liquid outlet pipe (320) of the gear pump (300) is communicated with a gap between the shell (110) and the thrust roller bearing (200).
7. A decelerator self-lubricating structure according to claim 1, wherein: a groove (114) is formed in the surface of the shell (110), and a reinforcing rib (115) is arranged in the groove (114).
8. A decelerator self-lubricating structure according to claim 1, wherein: casing (110) top is provided with hoist mechanism (400), hoist mechanism (400) include a plurality of connecting pieces (410), connecting piece (410) include annular connecting portion (411) and columnar installation department (412), connecting portion (411) and casing (110) threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023172660.8U CN214146496U (en) | 2020-12-24 | 2020-12-24 | Self-lubricating structure of speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023172660.8U CN214146496U (en) | 2020-12-24 | 2020-12-24 | Self-lubricating structure of speed reducer |
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| Publication Number | Publication Date |
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| CN214146496U true CN214146496U (en) | 2021-09-07 |
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| CN202023172660.8U Active CN214146496U (en) | 2020-12-24 | 2020-12-24 | Self-lubricating structure of speed reducer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045990A (en) * | 2022-08-12 | 2022-09-13 | 常州市曼多林精密机械科技有限公司 | Thin oil lubrication planetary reducer |
| CN115467959A (en) * | 2022-08-25 | 2022-12-13 | 畅春燕 | Self-lubricating speed reducer |
-
2020
- 2020-12-24 CN CN202023172660.8U patent/CN214146496U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045990A (en) * | 2022-08-12 | 2022-09-13 | 常州市曼多林精密机械科技有限公司 | Thin oil lubrication planetary reducer |
| CN115467959A (en) * | 2022-08-25 | 2022-12-13 | 畅春燕 | Self-lubricating speed reducer |
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