A speed reducer having an adjustable oil supply system

Abstract

A speed reducer with an adjustable oil supply system belongs to the field of speed reducer technology. It includes a housing, with an input shaft (1) and an output shaft (13) extending from the end face of the housing. The input shaft (1) and output shaft (13) mesh within the housing. An oil pump (3) is also provided to lubricate the bearings at the input shaft (1) and output shaft (13). The oil pump (3) is located on the surface of the housing, and a swing suction rod is provided on the inner wall of the housing. The swing suction rod rotates freely within the housing under its own weight. The oil outlet of the swing suction rod is connected to the oil inlet of the oil pump (3), and the oil outlet of the oil pump (3) is connected to an oil outlet pipe assembly within the housing. The oil outlet pipe assembly extends within the housing to the bearings at the input shaft (1) and output shaft (13), respectively. In the speed reducer with an adjustable oil supply system of this application, by providing a swing suction rod, the swing suction rod can rotate freely within the housing using its own weight, thus achieving adjustable oil supply.

Description

Technical Field

[0001] A speed reducer with an adjustable oil supply system belongs to the field of speed reducer technology. Background Technology

[0002] When a speed reducer is in use, the bearings inside the speed reducer housing need to be lubricated. There are many ways to lubricate, such as using an oil baffle and a flow diversion and guiding structure to achieve lubrication (such as the technical solution described in Chinese invention patent application number 202410775861.0, application date June 14, 2024, patent name "A Lubrication Assembly and High Speed ​​Gearbox"). The drawback of this solution is that it is difficult to apply to working conditions with large loads and high stability requirements.

[0003] For operating conditions with high loads and high stability requirements, to achieve good lubrication and cooling effects, it is preferable to use an oil pump to lubricate the internal bearings (e.g., the technical solution described in Chinese Utility Model Patent Application No. 202322945663.8, filed on October 31, 2023, entitled "Reducer Lubrication System," and the technical solution described in Chinese Utility Model Patent Application No. 202020556519.9, filed on April 15, 2020, entitled "An Oil-Lubricated Reducer"). Using an oil pump for lubrication reduces the amount of oil needed in the reducer housing, thus reducing power loss caused by oil agitation during gear rotation and lowering the reducer's heat generation. Whether it's a high-position bearing or a low-position bearing, the lubricating oil pump can deliver lubricating oil through the lubrication pipeline.

[0004] However, when using oil pump lubrication, the oil pump needs to draw oil from the bottom of the gearbox and supply it to the bearings and other components that require lubrication. In some operating conditions, the installation direction of the gearbox is not fixed, and the position of its bottom is also not fixed. Sometimes, even with the same installation direction, the gearbox may tilt as the machine moves. When the installation direction of the gearbox changes or it tilts, the lubricating oil level will be at different positions. Normally, when the installation direction of the gearbox changes, the installation method of the oil pump may need to be changed, which is labor-intensive and time-consuming. Therefore, designing an oil pump lubrication scheme that can adapt to gearboxes with different installation angles or constantly changing tilt angles has become an urgent problem to be solved in this field. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a reducer with an adjustable oil supply system that achieves adjustable oil supply by setting a swing suction rod, which can rotate freely in the housing by its own gravity, and can realize oil supply under the state of constantly changing installation angle or tilt angle of the reducer.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: the reducer with an adjustable oil supply system includes a housing, an input shaft and an output shaft extending from the end face of the housing, the input shaft and the output shaft meshing within the housing, and an oil pump for lubricating the bearings at the input shaft and the output shaft. The oil pump is characterized by being mounted on the surface of the housing, and a swing suction rod is mounted on the inner wall of the housing. The swing suction rod rotates freely within the housing due to its own weight. The oil outlet of the swing suction rod is connected to the oil inlet of the oil pump, and the oil outlet of the oil pump is connected to an oil outlet pipe assembly within the housing. The oil outlet pipe assembly extends within the housing to the bearings of the input shaft and the output shaft, respectively.

[0007] Preferably, the input shaft of the oil pump is coaxially fixed to the output shaft within the housing via a coupling.

[0008] Preferably, the oscillating oil suction rod includes an oscillating connecting pipe and an oscillating oil inlet pipe, wherein one end of the oscillating connecting pipe is installed in the middle of the oscillating oil inlet pipe and the oscillating connecting pipe is connected to the inner cavity of the oscillating oil inlet pipe, and an oscillating joint is installed at the other end of the oscillating connecting pipe. The oscillating joint is rotatably installed in the housing and connected to the oil inlet of the oil pump.

[0009] Preferably, a translation shaft is also provided inside the swing oil inlet pipe, the translation shaft passes through the swing oil inlet pipe, and a ball head is coaxially fixed at each end of the translation shaft.

[0010] Preferably, an oil pump seat is provided on the surface of the housing, the oil pump is installed in the middle of the oil pump seat, and multiple connecting blocks are distributed at the edge of the oil pump seat. The connecting blocks include an oil outlet block of the pump seat and multiple oil inlet connecting blocks. The oil outlet block of the pump seat is connected to the oil outlet of the oil pump on the surface of the housing, and the multiple oil inlet connecting blocks are simultaneously connected to the oil inlet of the oil pump on the surface of the housing. The oil outlet block of the pump base is connected to the oil outlet pipe assembly inside the machine housing. Each oil inlet connecting block is connected to a swing suction rod inside the machine housing, and there is only one swing suction rod with a passage between it and the oil inlet of the oil pump.

[0011] Preferably, the oil inlet connecting block includes two blocks, each equipped with a replaceable sealing plug and a connecting plug. The block with the sealing plug is a pump seat sealing block, and the block with the connecting plug is a pump seat suction block. The sealing plug is used to block the oil passage between the corresponding swing suction rod and the oil inlet of the oil pump, and the connecting plug is used to connect the oil passage between the corresponding swing suction rod and the oil inlet of the oil pump. A connecting plug is also installed inside the oil outlet block of the pump seat to connect the oil passage between the oil outlet pipe assembly and the oil outlet of the oil pump.

[0012] Preferably, the connecting plug is cylindrical, with an annular plug oil groove on its surface, and an internal oil hole axially formed from the center of the inner end of the connecting plug. The internal oil hole extends to the plug oil groove and is connected to the plug oil groove through a radial transition hole. The internal oil hole is connected to the swing suction rod inside the housing, and the oil inlet of the oil pump is connected to the plug oil groove through an oil inlet connecting block. The plug is cylindrical, and its inner end seals the oscillating suction rod within the oil inlet connecting block.

[0013] Preferably, the bearings disposed at the input shaft are a rear input bearing and a front input bearing, wherein the front input bearing consists of multiple bearings disposed within an input bearing housing; the bearings disposed at the output shaft are a rear output bearing and a front output bearing, wherein the front output bearing consists of multiple bearings disposed within an output bearing housing; The oil outlet pipe assembly includes an input lubrication pipe extending to the rear input bearing and into the input bearing housing; the oil outlet pipe assembly also includes an output lubrication pipe connected in parallel with the input lubrication pipe, the output lubrication pipe extending to the rear output bearing and into the output bearing housing.

[0014] Compared with the prior art, the beneficial effects of this invention are: In the adjustable oil supply reducer with adjustable oil supply system of this application, by setting a swing suction rod, the swing suction rod can rotate freely in the housing by its own gravity, which can realize oil supply when the reducer is in a state of continuous change of different installation angles or tilt angles.

[0015] The input shaft of the oil pump passes through the oil pump base and enters the machine housing. It is then fixed coaxially with the output shaft via a coupling. The output shaft drives the oil pump to work, thus pumping oil without the need for additional power to the oil pump.

[0016] Multiple oil inlet connecting blocks are set on the surface of the oil pump base. Replaceable sealing plugs and connecting plugs are installed in the oil inlet connecting blocks respectively. The one with the sealing plug is the pump base sealing block, and the one with the connecting plug is the pump base suction block. Therefore, according to the installation angle of the reducer and the dynamics during operation, the corresponding swing suction rod of one of the oil inlet connecting blocks can be selected to achieve oil suction by replacing the sealing plug and connecting plug, which has higher applicability. Attached Figure Description

[0017] Figure 1 This is a front view of a speed reducer with an adjustable oil supply system.

[0018] Figure 2 for Figure 1 Sectional view along line AA.

[0019] Figure 3 for Figure 1 Sectional view along the BB direction.

[0020] Figure 4 A isometric view of a reducer with an adjustable oil supply system, omitting the housing.

[0021] Figure 5 This is a front view of a speed reducer with an adjustable oil supply system, omitting the housing.

[0022] Figure 6 for Figure 5 Top view.

[0023] Figure 7 for Figure 5 The right view.

[0024] Figure 8 Rear axonometric view of the output bearing housing of a reducer with an adjustable directional oil supply system.

[0025] Figure 9 Rear axonometric view of the input bearing housing for a speed reducer with an adjustable directional oil supply system.

[0026] Figure 10 This is a front view of the oil pump base for a gearbox with an adjustable oil supply system.

[0027] Figure 11 Rear isometric view of the oil pump base of a gearbox with an adjustable oil supply system.

[0028] Figure 12 A front view of the connecting plug for a speed reducer with an adjustable oil supply system.

[0029] Figure 13 for Figure 12 Sectional view along the CC direction.

[0030] Figure 14 This is a front view of a gearbox plug with an adjustable oil supply system.

[0031] Figure 15 for Figure 14 Sectional view along the DD direction.

[0032] Figure 16 Axonometric drawing of the oscillating suction rod of a reducer with an adjustable directional oil supply system.

[0033] Figure 17 This is a front view of the swing suction rod of a speed reducer with an adjustable oil supply system.

[0034] Figure 18 for Figure 17 Sectional view along the EE direction.

[0035] Figure 19 for Figure 6 Enlarged view of point A in the middle.

[0036] The components include: 1. Input shaft; 2. Upper housing; 3. Oil pump; 4. Oil pump base; 5. Lower housing; 6. Output bevel gear; 7. Upper swing suction rod; 8. Output bearing housing; 9. Rear output bearing; 10. Coupling; 11. Lower swing suction rod; 12. Front output bearing; 13. Output shaft; 14. Front input bearing; 15. Spacer sleeve; 16. Rear input bearing; 17. Input bearing housing; 18. Pump base sealing block; 19. Sealing plug; 20. Connecting plug; 21. Pump base suction block; 22. Pump base connecting pipe; 23. Pump base oil outlet block; 24. Pump base connecting block; 25. Input lubrication pipe; 26. Output lubrication pipe; 27. Inner connecting pipe; 28. Output lubrication inner groove; 29. ​​Output base body; 30. Output lubrication hole 31, output sealing groove 32, output end plate 33, input end plate 34, input sealing groove 35, input lubrication hole 36, input seat 37, input lubrication inner groove 38, oil pump seat plate 39, oil pump mounting port 40, stepped hole 41, boss 42, boss lubrication hole 43, connecting sealing groove 44, plug oil hole 45, plug oil groove 46, connecting plug threaded section 47, sealing groove 48, sealing plug threaded section 49, swing joint 50, swing connecting pipe 51, swing oil inlet pipe 52, translation shaft 53, ball head 54, column oil hole 55, output side oil pipe 56, output lubrication groove 57, input lubrication groove. Detailed Implementation

[0037] Figures 1-19 This is the preferred embodiment of the present invention, which is described below in conjunction with the accompanying drawings. Figures 1-19 The present invention will be further described below.

[0038] like Figures 1-3 As shown, a reducer with an adjustable oil supply system (hereinafter referred to as the reducer) includes a housing, which is formed by upper housing 2 and lower housing 5 joined and fixed together. The interior of the housing is the cavity of the reducer. The input shaft 1 of the reducer extends from the end face of one end along the length direction of the housing. The output shaft 13 of the reducer is perpendicular to the input shaft 1 and extends from the end face of one end along the width direction of the housing. The inner end of the input shaft 1 is an integral bevel gear structure, which serves as the input bevel gear of the reducer. An output bevel gear 6 is fitted outside the output shaft 13. The diameter of the output bevel gear 6 is larger than the diameter of the input bevel gear it meshes with, thereby achieving a speed reduction effect on the input shaft 1.

[0039] An input bearing housing 17 is provided at the input end of this reducer. A front input bearing 14 is installed inside the input bearing housing 17, and the input shaft 1 passes through the front input bearing 14. A rear input bearing 16 is fitted inside the input shaft 1. A spacer sleeve 15 is also provided between the front input bearing 14 and the rear input bearing 16, and the spacer sleeve 15 is fitted between the front input bearing 14 and the rear input bearing 16. An output bearing housing 8 is provided at the output end of this reducer. A rear output bearing 9 is installed inside the output bearing housing 8, and the rear end of the output shaft 13 passes through the rear output bearing 9. A front output bearing 12 is also provided on the side near the output end of the output shaft 13, and the output shaft 13 passes through the front output bearing 12.

[0040] An oil pump seat 4 is provided on the end face of the housing facing away from the output end of the output shaft 13. An oil pump 3 is installed in the middle of the oil pump seat 4. The input shaft of the oil pump 3 passes through the oil pump seat 4 and enters the housing. It is coaxially fixed with the output shaft 13 through a coupling 10. The output shaft 13 drives the oil pump 3 to work and realize oil pumping. An external oil pipe mechanism is arranged on the outer end face of the oil pump seat 4, and an internal oil pipe mechanism is provided inside the housing. The oil pump 3 is installed in the external oil pipe mechanism. The internal oil pipe mechanism and the external oil pipe mechanism are connected through the oil pump seat 4. When the oil pump 3 rotates under the drive of the output shaft 13, it draws out the lubricating oil in the housing through the internal oil pipe mechanism and then sends it back into the housing to lubricate the input bearing at the input shaft 1 and the output bearing at the output shaft 13.

[0041] like Figures 4-7 As shown, a pump seat blocking block 18 and a pump seat suction block 21 are provided on the surface of the oil pump base 4. The pump seat blocking block 18 and the pump seat suction block 21 are located on one side of the oil pump 3 and are connected to the input end of the oil pump 3 through a pump seat connecting pipe 22 and a pump seat connecting block 24. The pump seat blocking block 18 and the pump seat suction block 21 are symmetrically arranged with respect to the axis of the output shaft 13. A pump seat outlet block 23 is also provided on the surface of the oil pump base 4. The pump seat outlet block 23 is located on the other side of the oil pump 3 and is connected to the output end of the oil pump 3 through a pump seat connecting pipe 22 and a pump seat connecting block 24.

[0042] A sealing plug 19 and a connecting plug 20 are installed in the pump seat sealing block 18 and the pump seat suction block 21, respectively, and a connecting plug 20 is also installed in the pump seat outlet block 23. The sealing plug 19 installed in the pump seat sealing block 18 passes through the upper shell 2 and connects with the swinging upper suction rod 7 inside the housing. The sealing plug 19 also seals the end of the connecting pipe 27 inside the pump seat through its end. The connecting plug 20 installed in the pump seat suction block 21 passes through the lower shell 5 and connects with the swinging lower suction rod 11 inside the housing. The connecting plug 20 connects with the lower suction rod 11 through the connecting pipe 27 inside the pump seat. The connecting plug 20 installed in the pump seat outlet block 23 passes through the lower shell 5 and connects with the outlet pipe assembly inside the housing.

[0043] One of the upper swing suction rod 7 or the lower swing suction rod 11 serves as the oil suction pipe. The lubricating oil in the housing is drawn out by the oil pump 3 through the upper swing suction rod 7 or the lower swing suction rod 11. Then, the oil pump 3 further sends the lubricating oil into the pump seat oil outlet block 23. The lubricating oil pumped out by the oil pump 3 is sent into the oil outlet pipe group through the connecting plug 20 installed in the pump seat oil outlet block 23, and then sent to the input bearing and the output bearing through the oil outlet pipe group.

[0044] It should be noted that: (1) The above-mentioned internal connecting pipe 27 is preferably connected by a channel opened in the upper shell 2 or the lower shell 5, rather than by a solid pipeline. That is, the upper swing suction rod 7 and the lower swing suction rod 11 are rotatably installed at the corresponding ports on the inner wall of the upper shell 2 or the lower shell 5. (2) The pump seat blocking block 18 and the pump seat suction block 21 are only different in name. By changing the installation position of the blocking plug 19 and the connecting plug 20, the pump seat blocking block 18 and the pump seat suction block 21 can be interchanged, that is, the oil pumping state of the upper swing suction rod 7 or the lower swing suction rod 11 can be changed.

[0045] like Figure 8 As shown, the output bearing housing 8 includes an output end plate 32. An output seat body 29 is coaxially arranged on the end face of the output end plate 32 facing the housing. When the output bearing housing 8 is installed into the housing, the output seat body 29 is positioned at the port on the surface of the housing, and the output end plate 32 is locked outside the port on the surface of the housing.

[0046] The aforementioned rear output bearing 9 is disposed within the output housing 29, and multiple rear output bearings 9 are axially arranged within the output housing 29. An output sealing groove 31 and an output lubrication groove 56 are formed on the surface of the output housing 29, arranged axially sequentially from one end of the output end plate 32. Both the output sealing groove 31 and the output lubrication groove 56 are annular grooves. A sealing ring is disposed within the output sealing groove 31. When the output housing 29 is installed into the housing, the sealing ring within the output sealing groove 31 achieves a seal between the output bearing housing 8 and the housing.

[0047] A set of output lubrication holes 30 are symmetrically provided in the groove of the output lubrication groove 56. The output lubrication holes 30 are through holes that radially penetrate the output seat 29. The inner wall of the output seat 29 is also provided with output lubrication inner grooves 28 that correspond one-to-one with the output lubrication holes 30. The inner port of the output lubrication hole 30 is located at the end of the output lubrication inner groove 28.

[0048] like Figure 9 As shown, the input bearing housing 17 includes an input end plate 33. An input seat body 36 is coaxially arranged on the end face of the input end plate 33 facing the housing. When the input bearing housing 17 is installed into the housing, the input seat body 36 is positioned at the port on the surface of the housing, and the input end plate 33 is locked outside the port on the surface of the housing.

[0049] The aforementioned front input bearing 14 is disposed within the input housing 36, and multiple front input bearings 14 are axially arranged within the input housing 36. An input sealing groove 34 and an input lubrication groove 57 are formed on the surface of the input housing 36, arranged axially sequentially from one end of the input end plate 33. Both the input sealing groove 34 and the input lubrication groove 57 are annular grooves. A sealing ring is disposed within the input sealing groove 34. When the input housing 36 is installed into the housing, the sealing ring within the input sealing groove 34 achieves a seal between the input bearing housing 17 and the housing.

[0050] A set of input lubrication holes 35 are symmetrically provided in the groove of the input lubrication groove 57. The input lubrication holes 35 are through holes that radially penetrate the input seat body 36. Input lubrication inner grooves 37 corresponding to the input lubrication holes 35 are also provided on the inner wall of the input seat body 36. The inner port of the input lubrication hole 35 is located at the end of the input lubrication inner groove 37.

[0051] like Figures 10-11As shown, the oil pump base 4 includes an oil pump base plate 38. An oil pump mounting port 39 for mounting the oil pump 3 is provided at the center of the oil pump base plate 38. The aforementioned pump base sealing block 18, pump base suction block 21, and pump base outlet block 23 are arranged around the periphery of the oil pump base plate 38. A boss 41 is coaxially provided on the end face of the oil pump base plate 38 facing the housing. The oil pump base 4 is inserted into the output bearing housing 8 from its port. An annular boss sealing groove is provided on the surface of the boss 41, and a sealing ring is provided within the boss sealing groove. When the oil pump base 4 and the output bearing housing 8 are mated, the boss 41 is fully inserted into the port of the output bearing housing 8, and the sealing between the boss 41 and the output bearing housing 8 is achieved through the sealing ring in the boss sealing groove.

[0052] A set of boss lubrication holes 42 are radially symmetrically formed on the surface of the boss 41. The boss lubrication holes 42 are through holes that radially penetrate the boss 41, and the boss lubrication holes 42 correspond to the output lubrication holes 30 in the output bearing housing 8. After the boss 41 is installed in the output bearing housing 8, the outer edge of the boss 41 extends to the inner side of the output lubrication inner groove 28, and the outer surface of the boss 41 is spaced apart from the bottom of the output lubrication inner groove 28. At this time, the boss lubrication holes 42 extend to the inner side of the corresponding output lubrication inner groove 28. Therefore, the boss lubrication holes 42 are connected to the corresponding output lubrication holes 30 through the output lubrication inner groove 28.

[0053] The pump seat sealing block 18, the pump seat oil suction block 21 and the pump seat oil outlet block 23 are also provided with the same stepped hole 40, and the sealing plug 19 or the connecting plug 20 are respectively installed into their respective stepped holes 40.

[0054] like Figures 12-13 As shown, the connecting plug 20 is cylindrical, with a hexagonal nut end at its outer end. An annular oil groove 45 is formed on the surface of the connecting plug 20. An internal oil hole 54 is axially formed at the center of the connecting plug 20, extending towards the nut end and reaching the oil groove 45. Multiple internal oil holes 44 are radially formed at the end of the internal oil hole 54, connecting the oil groove 45 and the internal oil hole 54 inside the cylindrical body. The section between the oil groove 45 and the nut end is a threaded section 46 of the connecting plug, with external threads formed on its surface.

[0055] Two annular connecting sealing grooves 43 are formed along the axial direction of the connecting plug 20 at one end of the column near the housing, and a sealing ring is provided in each connecting sealing groove 43. After the connecting plug 20 is installed, since the connecting plug 20 passes through the stepped hole 40 and the housing, the two sealing rings respectively achieve sealing between the connecting plug 20 and the stepped hole 40 and the housing. At the same time, when the connecting plug 20 is installed in the stepped hole 40, the threaded section 46 of the connecting plug is threadedly connected to the stepped hole 40 to achieve sealing. At this time, an oil passage is formed in the pump seat suction block 21 or pump seat outlet block 23 through the annular plug oil groove 45. An interface communicating with the plug oil groove 45 is also provided on the surface of the pump seat suction block 21 or pump seat outlet block 23, and the aforementioned internal connecting pipe 27 is connected to the plug oil groove 45 through the interface.

[0056] The aforementioned oil outlet pipe assembly includes an input lubrication pipe 25. One end of the input lubrication pipe 25 is connected to the inner port of the internal connecting pipe 27 at the oil outlet block 23 of the pump seat, and the other end extends horizontally towards the input shaft 1. Two oil outlets are provided at the end of the input lubrication pipe 25, and channels communicating with the two oil outlets are provided in the lower housing 5. The outer ports of the two channels are connected to the two oil outlets at the end of the input lubrication pipe 25, respectively. One inner port of the two channels is connected to the rear input bearing 16, and the other is connected to the input bearing seat 17, communicating with the input lubrication groove 57 on the surface of the input bearing seat 17. The oil outlet pipe assembly also includes an output lubrication pipe 26. One end of the output lubrication pipe 26 is connected to the input lubrication pipe 25, and the other end extends to the front output bearing 12.

[0057] Combination Figure 19 An output side oil pipe 55 is also led out from the side of the internal connecting pipe 27 corresponding to the oil outlet block 23 of the pump seat. The output side oil pipe 55 is implemented in the same way as the internal connecting pipe 27, preferably by using a channel opened in the housing. One end of the output side oil pipe 55 is connected to the internal connecting pipe 27 in the housing, and the other end is connected to the output lubrication groove 56 on the surface of the output bearing seat 8 after passing through the housing.

[0058] like Figures 14-15 As shown, the plug 19 is also cylindrical, with a hexagonal nut end at the outer end. A plug thread section 48 is provided on the side of the nut end near the housing, and an external thread is provided on the surface of the plug thread section 48.

[0059] Two annular sealing grooves 47 are formed along the axial direction of the sealing plug 19 at one end of the plug body near the housing. A sealing ring is provided in each sealing groove 47. After the sealing plug 19 is installed, since the sealing plug 19 passes through the stepped hole 40 and the housing, the two sealing rings respectively achieve sealing between the sealing plug 19 and the stepped hole 40 and the housing. When the sealing plug 19 is installed into the stepped hole 40, the threaded connection between the connecting plug thread section 46 and the stepped hole 40 is achieved to achieve sealing. After the sealing plug 19 is installed in place, the end of the sealing plug 19 seals the port of the internal connecting pipe 27 opened in the housing.

[0060] The upper swing suction rod 7 and the lower swing suction rod 11 described above have the same structure, as follows: Figures 16-18 As shown, it includes a vertically arranged swing connecting pipe 50 and a swing oil inlet pipe 51. One end of the swing connecting pipe 50 is installed in the middle of the swing oil inlet pipe 51, and the inner cavities of the swing connecting pipe 50 and the swing oil inlet pipe 51 are connected. A swing connector 49 is installed at the other end of the swing connecting pipe 50. The swing connector 49 is rotatably installed at the inner port of the inner connecting pipe 27.

[0061] A translation shaft 52 is also provided inside the swing oil inlet pipe 51. The translation shaft 52 passes through the swing oil inlet pipe 51, and a ball head 53 is coaxially fixed at both ends of the translation shaft 52.

[0062] The specific working process and working principle are as follows: First, according to the arrangement direction of the reducer during operation, rotate and install the sealing plug 19 and the connecting plug 20 into the oil pump seat 4. After installing the sealing plug 19 and the connecting plug 20, a pump seat sealing block 18 and a pump seat suction block 21 are formed on the surface of the oil pump seat 4, respectively. At the same time, another connecting plug 20 is installed into the pump seat outlet block 23. The sealing plug 19 in the pump seat sealing block 18 blocks its corresponding internal connecting pipe 27, and the corresponding swing suction rod (upper swing suction rod 7 or lower swing suction rod 11) is disabled. The connecting plug 20 in the pump seat suction block 21 blocks its corresponding internal connecting pipe 27, and the corresponding swing suction rod (lower swing suction rod 11 or upper swing suction rod 7) performs the function of suctioning oil.

[0063] The oscillating oil suction rod, which acts as an oil suction device, is rotatably mounted inside the machine housing. Therefore, due to its own weight, the oscillating oil suction rod is always in a downward position. That is, when the machine housing is tilted, or when it tilts during operation, the oscillating oil suction rod is always immersed in the lubricating oil at the bottom of the machine housing. If the oscillating oil inlet pipe 51 is tilted, one port is closed by the ball head 53, and the other port is open as the ball head 53 moves away. Figure 18 The state shown.

[0064] When the input shaft 1 drives the output shaft 13 to rotate via the bevel gear structure, the output shaft 13 drives the oil pump 3 to work via the coupling 10. The lubricating oil in the housing enters the corresponding internal connecting pipe 27 through the swing oil inlet pipe 51, and then enters the connecting plug 20 through the internal connecting pipe 27. In the connecting plug 20, the lubricating oil enters the plug oil groove 45 through the oil hole 54 in the column and the oil hole 44 in the plug in sequence, and then enters the oil pump 3 through the pump seat connecting pipe 22 and the pump seat connecting block 24 on the surface of the pump seat oil suction block 21.

[0065] Then, the oil pump 3 pumps the lubricating oil into the oil outlet block 23 of the pump seat through the pump seat connecting pipe 22 and the pump seat connecting block 24. After entering the oil outlet block 23, the lubricating oil passes through the plug oil groove 45, the plug oil hole 44 and the column oil hole 54 of the connecting plug 20 in sequence and enters the connecting pipe 27 inside the seat. Then, it enters the input lubrication pipe 25 through the connecting pipe 27 inside the seat. After entering the input lubrication pipe 25, the lubricating oil is sent to the rear input bearing 16 and the input bearing seat 17 through the oil outlet at its end. After entering the input bearing seat 17, it passes through the input lubrication groove 57 and the input lubrication hole 35 into the interior of the input bearing seat 17, and extends to the front input bearing 14 through the input lubrication inner groove 37, thus realizing the lubrication of the rear input bearing 16 and the front input bearing 14.

[0066] Lubricating oil simultaneously enters the output lubrication pipe 26, lubricating the front output bearing 12. As the lubricating oil enters the inner connecting pipe 27 and is output to the input lubrication pipe 25 and the output lubrication pipe 26, it is also sent to the output lubrication groove 56 on the surface of the output bearing housing 8 through the output side oil pipe 55, and enters the interior of the output bearing housing 8 through the output lubrication hole 30 to lubricate the rear output bearing 9 at the output lubrication hole 30. At the same time, the lubricating oil extends to the outside of the boss 41 through the output lubrication groove 28, and enters the inner wall of the oil pump housing 4 through the boss lubrication hole 42 on the surface of the boss 41 to lubricate the rear output bearing 9 located at the oil pump housing 4.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A speed reducer with an adjustable oil supply system, comprising a casing, an input shaft (1) and an output shaft (13) leading out from the end surface of the casing, the input shaft (1) and the output shaft (13) engaging within the casing, and an oil pump (3) for lubricating bearings at the input shaft (1) and the output shaft (13) is provided, characterized in that: The oil pump (3) is installed on the surface of the housing. A swing suction rod is installed on the inner wall of the housing. The swing suction rod rotates freely in the housing due to its own weight. The oil outlet of the swing suction rod is connected to the oil inlet of the oil pump (3). The oil outlet of the oil pump (3) is connected to the oil outlet pipe assembly in the housing. The oil outlet pipe assembly extends to the bearings of the input shaft (1) and the output shaft (13) in the housing respectively. ​ The swing suction rod includes a swing connecting pipe (50) and a swing inlet pipe (51). One end of the swing connecting pipe (50) is installed in the middle of the swing inlet pipe (51), and the swing connecting pipe (50) is connected to the inner cavity of the swing inlet pipe (51). A swing connector (49) is installed at the other end of the swing connecting pipe (50). The swing connector (49) is rotatably installed in the housing and connected to the oil inlet of the oil pump (3). A translation shaft (52) is also provided inside the swing oil inlet pipe (51). The translation shaft (52) passes through the swing oil inlet pipe (51), and a ball head (53) is coaxially fixed at both ends of the translation shaft (52). An oil pump seat (4) is provided on the surface of the housing. The oil pump (3) is installed in the middle of the oil pump seat (4). Multiple connecting blocks are distributed at the edge of the oil pump seat (4). The connecting blocks include the pump seat oil outlet block (23) and multiple oil inlet connecting blocks. The pump seat oil outlet block (23) is connected to the oil outlet of the oil pump (3) on the surface of the housing. The multiple oil inlet connecting blocks are connected to the oil inlet of the oil pump (3) on the surface of the housing. The oil outlet block (23) of the pump seat is connected to the oil outlet pipe assembly inside the housing. Each oil inlet connecting block is connected to a swing suction rod inside the housing, and there is only one swing suction rod and the oil inlet of the oil pump (3) is a passage.

2. The speed reducer with an adjustable oil supply direction system according to claim 1, characterized by: The input shaft of the oil pump (3) is fixed coaxially with the output shaft (13) inside the housing via a coupling (10).

3. The reducer with an adjustable oil supply system according to claim 1, characterized in that: The oil inlet connecting block includes two, and each of the two oil inlet connecting blocks is equipped with a replaceable plug (19) and a connecting plug (20). The one with the plug (19) installed is the pump seat plug (18), and the one with the connecting plug (20) installed is the pump seat suction block (21). The plug (19) is used to block the oil passage between the corresponding swing suction rod and the oil inlet of the oil pump (3), and the connecting plug (20) is used to connect the oil passage between the corresponding swing suction rod and the oil inlet of the oil pump (3). A connecting plug (20) for connecting the oil passage between the oil outlet of the oil pump (3) and the oil outlet of the oil outlet block (23) is also installed inside the oil outlet block (23).

4. The reducer with an adjustable oil supply system according to claim 3, characterized in that: The connecting plug (20) is cylindrical, and an annular plug oil groove (45) is provided on the surface of the connecting plug (20). An internal oil hole (54) is provided axially from the center of the inner end of the connecting plug (20). The internal oil hole (54) extends to the plug oil groove (45) and is connected to the plug oil groove (45) through the radial plug oil hole (44). The internal oil hole (54) is connected to the swing suction rod inside the housing. The oil inlet of the oil pump (3) is connected to the plug oil groove (45) through the oil inlet connecting block. The plug (19) is cylindrical, and the inner end of the plug (19) closes the swing suction rod inside the oil inlet connecting block.

5. The reducer with an adjustable oil supply system according to claim 1, characterized in that: The bearings located on the input shaft (1) are a rear input bearing (16) and a front input bearing (14), wherein the front input bearing (14) consists of multiple bearings located in the input bearing housing (17); the bearings located on the output shaft (13) are a rear output bearing (9) and a front output bearing (12), wherein the front output bearing (12) consists of multiple bearings located in the output bearing housing (8); The oil outlet assembly includes an input lubrication pipe (25) extending to the rear input bearing (16) and inside the input bearing housing (17); the oil outlet assembly also includes an output lubrication pipe (26) connected in parallel with the input lubrication pipe (25), the output lubrication pipe (26) extending to the rear output bearing (9) and inside the output bearing housing (8).

Images