Buffering and anti-leakage speed reducer shell

Abstract

The invention relates to the technical field of speed reducer shells, and provides a buffering and anti-leakage speed reducer shell which comprises a shell body, bearings are fixedly connected to the two ends of the shell body, a shaft body is rotationally connected between the two bearings, an oil return mechanism is arranged at the bottom end of the shell body, and the oil return mechanism comprises an oil return box fixedly connected to the bottom of the shell body. One end of the top of the oil return tank is provided with an oil return groove communicated with the interior of the shell, one end of the inner side of the oil return tank is fixedly connected with an inclined flow guide seat, and the bottom end of the flow guide seat is provided with a filter part; one end of the oil return box is provided with a negative pressure piece which is matched with starting of the cleaning assembly to guide engine oil in the oil return box into the shell. Engine oil is guided into the oil return box through the oil return groove and then guided into the filtering piece through the flow guide base to be filtered, impurities mixed in the engine oil are filtered out, and the problem of oil leakage caused by mechanical abrasion of a shaft body due to the impurities of the engine oil is solved.

Description

Technical Field

[0001] The invention relates to the technical field of reducer housings, and in particular to a buffered and leak-proof reducer housing. Background Art

[0002] The development history of reducer industry in my country has been nearly 40 years. Reducer products are widely used in various fields of national economy and national defense industry. Reducer is an independent component composed of gear transmission, worm transmission and gear-worm transmission enclosed in a rigid shell. It is often used as a reduction transmission device between the prime mover and the working machine. It is widely used in modern machinery. If the reducer is in a humid or rain-soaked environment for a long time, it will cause damage to the internal components of the reducer. After searching, the Chinese patent (publication number: CN211778888U) discloses "a leakage-proof reducer housing, comprising a base, supporting legs, feet, fixing bolt holes, fixing bolts, a machine body, a cover, a bottom cover, anti-rust paint, a sealing gasket, an anti-seepage cloth, a thread, a shock-absorbing rubber, a connecting rod, and a connecting block. The bottom of the base is welded with supporting legs, the feet are installed at the bottom of the supporting legs, the fixing bolt holes are opened on the feet, the fixing bolts are installed inside the fixing bolt holes, the machine body is installed on the top of the base, the cover is installed at one end of the machine body through threads, and a sealing gasket is arranged at the joint, the anti-seepage cloth is arranged on the inner wall of the machine body, the shock-absorbing rubber is arranged inside the machine body, a connecting rod is welded on one side of the bottom cover, the connecting block is arranged inside the machine body, the bottom cover is connected to the machine body through the connecting rod and the connecting block, and the anti-rust paint is sprayed on the outer wall of the machine body".

[0003] However, in the process of implementing relevant technologies, this type of patent has certain technical defects: The interior of the machine body is provided with shock-absorbing rubber, which can make the space inside the machine body more compact while reducing shock. The anti-seepage cloth is arranged on the inner wall of the machine body to prevent oil from seeping out. The outer wall of the machine body is sprayed with anti-rust paint to prevent the machine body from rusting. However, in this scheme, when the reducer shaft body is shaken by force, the wear of the reducer shaft body and the outlet will be accelerated, resulting in oil leakage. Mechanical wear may occur to the machine body during operation, which may cause some worn mechanical debris or impurities to mix into the engine oil. These mixed impurities may flow back into the mechanical transmission structure, which may aggravate the mechanical wear and make the wear of the reducer shaft and the outlet more serious, thereby causing engine oil leakage. In view of this, the present invention proposes a buffered and leak-proof reducer housing. Summary of the invention

[0004] The present invention provides a buffering and leak-proof reducer housing, which solves the problem in the prior art that mechanical impurities are easily mixed into the engine oil, causing serious wear of the reducer shaft and oil leakage.

[0005] The technical solution of the present invention is as follows: a buffered and leak-proof reducer housing comprises an outer shell, bearings are fixedly connected at both ends of the outer shell, a shaft is rotatably connected between the two bearings, an oil return mechanism is arranged at the bottom end of the outer shell, the oil return mechanism comprises an oil return tank fixedly connected to the bottom of the outer shell, an end at the top of the oil return tank is provided with an oil return groove communicated with the interior of the outer shell, an end on the inner side of the oil return tank is fixedly connected with an inclined guide seat, a filter element for filtering engine oil is arranged at the bottom end of the guide seat, a cleaning component for cleaning the filter element by cooperating with the rotation of the shaft is arranged on the inner side of the oil return tank, and a negative pressure component is arranged at one end of the oil return tank for guiding the engine oil inside the oil return tank into the interior of the outer shell by cooperating with the start of the cleaning component.

[0006] Preferably, the filter element comprises a partition fixedly connected to the inner side of the oil return tank, an oil guide hole is opened in the middle of the partition, an outer filter cartridge is fixedly connected to one side of the partition, and a concentrically arranged inner filter cartridge is fixedly connected to the inner side of the outer filter cartridge.

[0007] Preferably, the inner diameter of the inner filter cartridge is the same as the pore diameter of the oil guide hole, and the filter pore diameter of the outer filter cartridge is larger than the filter pore diameter of the inner filter cartridge.

[0008] Preferably, the cleaning assembly includes a sliding rod that passes through the side wall of the outer filter cartridge, the sliding rod is slidably connected to the side wall of the outer filter cartridge, one end of the sliding rod is fixedly connected to a mounting frame, the outer side of the mounting frame is fixedly connected to a cleaning ring, the outer wall of the cleaning ring abuts against the inner wall of the inner filter cartridge, the other end of the sliding rod is fixedly connected to a connecting plate, and the outer side of the connecting plate is provided with a pressing piece that drives the connecting plate to reciprocate in a horizontal direction by rotating in cooperation with the shaft.

[0009] Preferably, the cleaning assembly also includes a plurality of sliding rods 2 distributed at equal angles around the connecting plate, a plurality of the sliding rods 2 penetrate the side wall of the outer filter cartridge, and a plurality of the sliding rods 2 are slidably connected to the side wall of the outer filter cartridge, one end of a plurality of the sliding rods 2 are fixedly connected to the outer edge of the connecting plate, and the other ends of a plurality of the sliding rods 2 are fixedly connected to the same cleaning ring 2, and the outer wall of the cleaning ring 2 is in conflict with the inner wall of the outer filter cartridge.

[0010] Preferably, the top pressure member includes a pressure rod passing through the bottom wall of the shell, the pressure rod is slidably connected to the bottom wall of the shell, the top end of the pressure rod is fixedly connected to an arc-surface pressure block, the shaft body is fixedly connected to a cam, the cam intermittently contacts the arc-surface pressure block by cooperating with the rotation of the shaft body, the bottom end of the pressure rod is fixedly connected to a movable seat, one end of the movable seat is hinged with a connecting rod 1, the bottom end of the connecting rod 1 is hinged to the outer wall of the connecting plate, a return spring is sleeved on the pressure rod, the top end of the return spring contacts the arc-surface pressure block, and the bottom end of the return spring contacts the inner wall of the shell.

[0011] Preferably, the negative pressure part includes a cylinder fixedly connected to the inner side of the oil return tank, one end of the inner side of the cylinder is slidably connected to a piston, one side of the piston is fixedly connected to a push-pull rod penetrating the side wall of the cylinder, the push-pull rod is slidably connected to the side wall of the cylinder, the push-pull rod is hinged to a connecting rod 2 at the end of the push-pull rod away from the piston, the top of the connecting rod 2 is hinged to one end of a movable seat, one end of the bottom of the cylinder is fixedly connected to an oil inlet pipe, a one-way valve 1 is fixedly connected to the oil inlet pipe, one end of the top of the cylinder is fixedly connected to an oil outlet pipe, the outlet end of the oil outlet pipe is communicated with the interior of the shell, and a one-way valve 2 is fixedly connected to the oil outlet pipe.

[0012] Preferably, the one-way valve 1 is used to guide the engine oil in the oil inlet pipe into the cylinder, and the one-way valve 2 is used to guide the engine oil in the cylinder into the oil outlet pipe.

[0013] Preferably, buffer mechanisms are provided at both ends of the shaft body, and the buffer mechanisms include two arc sleeves 1 and arc sleeve 2, and the arc sleeve 1 and arc sleeve 2 are both sleeved on the shaft body and have complete circular ring structures at the joints, and two shock absorbers are hinged on the outer sides of the arc sleeve 1 and arc sleeve 2, and one end of the two shock absorbers away from the corresponding arc sleeve 1 and arc sleeve 2 is hinged to the inner wall of the outer shell.

[0014] Preferably, the shock absorber includes a sleeve, one end of which is hinged to the inner wall of the outer shell, the other end of the sleeve is slidably connected to a sleeve rod, one end of the sleeve rod is hinged to the outer walls of the corresponding arc sleeve one and arc sleeve two, the inner side of the sleeve is slidably connected to a friction block, one side of the friction block is fixedly connected to the sleeve rod, the inner side of the sleeve is sleeved with a buffer spring, one end of the buffer spring abuts against the inner wall of the sleeve, and the other end of the buffer spring abuts against the friction block.

[0015] The working principle and beneficial effects of the present invention are: 1. When the reducer is running, the oil is introduced into the oil return tank through the oil return groove, and then introduced into the filter element through the guide seat for filtration, so that the impurities mixed in the oil are filtered out, and then the filtered oil is re-introduced into the mechanical structure in the shell through the negative pressure element, so as to avoid the problem of mechanical wear of the shaft caused by oil impurities and oil leakage; 2. When the reducer is running, the shaft body will rotate, so that the top pressure piece drives the connecting plate to reciprocate in the horizontal direction, so that the slide bar 1 and the plurality of slide bars 2 slide back and forth synchronously, so that the cleaning ring 1 and the cleaning ring 2 slide back and forth, which makes the cleaning ring 1 and the cleaning ring 2 clean the inner wall of the inner filter cartridge and the inner wall of the outer filter cartridge respectively, thereby preventing the filter holes of the inner filter cartridge and the outer filter cartridge from being blocked by impurities and affecting the normal filtering work; 3. When the reducer is running, the shaft will rotate, causing the cam to rotate synchronously. When the cam contacts the cambered pressure block, the cambered pressure block moves downward due to the compression of the cam, causing the pressure rod to drive the movable seat to move downward. At this time, the return spring is compressed to accumulate potential energy. When the cam is separated from the cambered pressure block, the return spring releases the potential energy to cause the movable seat to move upward. This cycle causes the movable seat to reciprocate up and down, causing the second connecting rod to drive the push-pull rod to slide back and forth, thereby causing the piston to slide back and forth on the inside of the cylinder. When the piston is away from the oil inlet pipe, the internal pressure of the cylinder decreases, causing the one-way valve to direct the oil from the return tank into the cylinder. When the piston is close to the oil inlet pipe, the internal pressure of the cylinder increases, causing the oil inside the cylinder to be re-introduced into the outer shell through the oil outlet pipe. This cycle allows the oil to be quickly introduced into the outer shell, effectively avoiding the problem of insufficient oil inside the outer shell due to slow oil return speed, which causes serious mechanical wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Figure 1 It is a schematic structural diagram of a buffer and anti-leakage reducer housing of the present invention; Figure 2 It is a schematic diagram of the local structure of the present invention; Figure 3 It is a structural schematic diagram of the oil return mechanism of the present invention; Figure 4 It is a structural schematic diagram of the filter element of the present invention; Figure 5 It is a schematic diagram of the structure of the cleaning component of the present invention; Figure 6 It is a structural schematic diagram of the top pressure piece of the present invention; Figure 7 It is a schematic structural diagram of the negative pressure member of the present invention; Figure 8 It is a structural schematic diagram of the buffer mechanism of the present invention; Fig. 9 It is a schematic structural diagram of the shock absorber of the present invention.

[0018] In the figure: 1, housing; 2, bearing; 3, shaft; 4, oil return mechanism; 41, oil return tank; 42, oil return groove; 43, guide seat; 45, filter element; 451, partition; 452, outer filter cartridge; 453, inner filter cartridge; 454, oil guide hole; 46, cleaning assembly; 461, slide bar 1; 462, mounting frame; 463, cleaning ring 1; 464, slide bar 2; 465, cleaning ring 2; 466, top pressure piece; 4661, cam; 4662, pressure rod; 4663, arc surface pressure block; 4 664, movable seat; 4665, connecting rod one; 4666, return spring; 467, connecting plate; 47, negative pressure member; 471, cylinder; 472, piston; 473, push-pull rod; 474, connecting rod two; 475, oil inlet pipe; 476, one-way valve one; 477, oil outlet pipe; 478, one-way valve two; 5, buffer mechanism; 51, arc sleeve one; 52, arc sleeve two; 53, shock absorber; 531, sleeve; 532, sleeve rod; 533, friction block; 534, buffer spring. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1 to Figure 9 As shown, the present embodiment proposes a buffering and leak-proof reducer housing, comprising a shell 1, bearings 2 are fixedly connected at both ends of the shell 1, a shaft body 3 is rotatably connected between the two bearings 2, an oil return mechanism 4 is arranged at the bottom end of the shell 1, the oil return mechanism 4 comprises an oil return tank 41 fixedly connected to the bottom of the shell 1, an oil return groove 42 communicating with the interior of the shell 1 is opened at one end of the top of the oil return tank 41, an inclined guide seat 43 is fixedly connected to one end of the inner side of the oil return tank 41, a filter element 45 for filtering the engine oil is arranged at the bottom end of the guide seat 43, a cleaning assembly 46 for cleaning the filter element 45 by cooperating with the rotation of the shaft body 3 is arranged on the inner side of the oil return tank 41, and a negative pressure member 47 is arranged at one end of the oil return tank 41 for guiding the engine oil inside the oil return tank 41 into the interior of the shell 1 by cooperating with the start of the cleaning assembly 46.

[0021] When the reducer is running, the engine oil is introduced into the oil return tank 41 through the oil return groove 42, and then introduced into the filter element 45 through the guide seat 43 for filtration, so that impurities mixed in the engine oil are filtered out, and then the filtered engine oil is re-introduced into the mechanical structure in the housing 1 through the negative pressure member 47, so as to avoid the problem of mechanical wear of the shaft 3 caused by the engine oil impurities and oil leakage.

[0022] Furthermore, the filter element 45 includes a partition 451 fixedly connected to the inner side of the return oil tank 41, an oil guide hole 454 is opened in the middle of the partition 451, an outer filter cartridge 452 is fixedly connected to one side of the partition 451, and a concentrically arranged inner filter cartridge 453 is fixedly connected to the inner side of the outer filter cartridge 452, the inner diameter of the inner filter cartridge 453 is the same as the aperture size of the oil guide hole 454, and the filter hole diameter of the outer filter cartridge 452 is larger than the filter hole diameter of the inner filter cartridge 453.

[0023] The oil in the housing 1 is introduced into the oil return tank 41 through the oil return groove 42, and then introduced into the oil guide hole 454 through the guide seat 43, and then filtered twice by the inner filter cartridge 453 and the outer filter cartridge 452 to filter out impurities of different sizes in the oil, greatly improving the filtering effect.

[0024] Furthermore, the cleaning assembly 46 includes a slide bar 461 that penetrates the side wall of the outer filter cartridge 452, the slide bar 461 is slidably connected to the side wall of the outer filter cartridge 452, one end of the slide bar 461 is fixedly connected to a mounting frame 462, the outer side of the mounting frame 462 is fixedly connected to a cleaning ring 463, the outer wall of the cleaning ring 463 abuts against the inner wall of the inner filter cartridge 453, the other end of the slide bar 461 is fixedly connected to a connecting plate 467, and the outer side of the connecting plate 467 is provided with a rotation member that is engaged with the shaft body 3. The top pressure piece 466 is moved to drive the connecting plate 467 to reciprocate in the horizontal direction. The side wall of the outer filter cartridge 452 is slidably connected with a plurality of slide rods 464 that penetrate the side wall of the outer filter cartridge 452. The plurality of slide rods 464 are distributed at equal angles around the connecting plate 467. One ends of the plurality of slide rods 464 are fixedly connected to the outer edge of the connecting plate 467. The other ends of the plurality of slide rods 464 are fixedly connected to the same cleaning ring 465. The outer wall of the cleaning ring 465 contacts the inner wall of the outer filter cartridge 452.

[0025] When the reducer is running, the shaft 3 will rotate, so that the top pressure piece 466 drives the connecting plate 467 to reciprocate in the horizontal direction, so that the slide bar 1 461 and the plurality of slide bars 464 slide reciprocatingly synchronously, so that the cleaning ring 1 463 and the cleaning ring 2 465 slide reciprocatingly, which makes the cleaning ring 1 463 and the cleaning ring 2 465 clean the inner wall of the inner filter cartridge 453 and the inner wall of the outer filter cartridge 452 respectively, thereby preventing the filter holes of the inner filter cartridge 453 and the outer filter cartridge 452 from being clogged by impurities and affecting the normal filtering work.

[0026] Furthermore, the top pressure piece 466 includes a pressure rod 4662 that passes through the bottom wall of the outer shell 1, the pressure rod 4662 is slidably connected to the bottom wall of the outer shell 1, the top of the pressure rod 4662 is fixedly connected with an arc-surface pressure block 4663, the shaft body 3 is fixedly connected with a cam 4661, the cam 4661 intermittently conflicts with the arc-surface pressure block 4663 by cooperating with the rotation of the shaft body 3, the bottom end of the pressure rod 4662 is fixedly connected with a movable seat 4664, one end of the movable seat 4664 is hinged with a connecting rod 4665, the bottom end of the connecting rod 4665 is hinged to the outer wall of the connecting plate 467, and a return spring 4666 is sleeved on the pressure rod 4662, the top end of the return spring 4666 conflicts with the arc-surface pressure block 4663, and the bottom end of the return spring 4666 conflicts with the inner wall of the outer shell 1.

[0027] When the reducer is running, the shaft 3 will rotate, so that the cam 4661 rotates synchronously. When the cam 4661 contacts the arc surface pressure block 4663, the arc surface pressure block 4663 is squeezed by the cam 4661 and moves downward, so that the pressure rod 4662 drives the movable seat 4664 to move downward. At this time, the return spring 4666 is compressed and accumulates potential energy, so that the connecting rod 4665 applies a thrust to the connecting plate 467 and the connecting plate 467 moves; when the cam 4661 is separated from the arc surface pressure block 4663, the return spring 4666 releases the potential energy, so that the pressure rod 4662 drives the movable seat 46 64 moves upward, causing the connecting plate 467 to move in the opposite direction, and this cycle causes the movable seat 4664 to reciprocate up and down, thereby causing the connecting plate 467 to reciprocate in the horizontal direction, causing the slide bar 1 461 and the plurality of slide bars 464 to slide reciprocatingly synchronously, causing the cleaning ring 1 463 and the cleaning ring 2 465 to slide reciprocatingly, thereby causing the cleaning ring 1 463 and the cleaning ring 2 465 to clean the inner wall of the inner filter cartridge 453 and the inner wall of the outer filter cartridge 452 respectively, thereby preventing the filter holes of the inner filter cartridge 453 and the outer filter cartridge 452 from being clogged by impurities and affecting the normal filtering work.

[0028] Furthermore, the negative pressure member 47 includes a cylinder 471 fixedly connected to the inner side of the oil return tank 41, one end of the inner side of the cylinder 471 is slidably connected to a piston 472, one side of the piston 472 is fixedly connected to a push-pull rod 473 that penetrates the side wall of the cylinder 471, the push-pull rod 473 is slidably connected to the side wall of the cylinder 471, the push-pull rod 473 is hinged to the end of the push-pull rod 473 away from the piston 472, the top end of the connecting rod 474 is hinged to one end of the movable seat 4664, and the cylinder 47 One end of the bottom of the cylinder 471 is fixedly connected to an oil inlet pipe 475, to which a one-way valve 476 is fixedly connected, and one end of the top of the cylinder 471 is fixedly connected to an oil outlet pipe 477, the outlet end of the oil outlet pipe 477 is communicated with the interior of the shell 1, and a one-way valve 478 is fixedly connected to the oil outlet pipe 477, the one-way valve 476 is used to guide the oil in the oil inlet pipe 475 into the cylinder 471, and the one-way valve 478 is used to guide the oil in the cylinder 471 into the oil outlet pipe 477.

[0029] When the reducer is running, the shaft 3 will rotate, causing the cam 4661 to rotate synchronously. When the cam 4661 contacts the arc surface pressure block 4663, the arc surface pressure block 4663 is squeezed by the cam 4661 and moves downward, causing the pressure rod 4662 to drive the movable seat 4664 to move downward. At this time, the return spring 4666 is compressed and accumulates potential energy. When the cam 4661 and the arc surface pressure block 4663 are separated, the return spring 4666 releases the potential energy to make the movable seat 4664 move upward. This cycle causes the movable seat 4664 to reciprocate up and down, causing the connecting rod 2 474 to drive the push-pull rod 473 to reciprocate. Sliding, so that the piston 472 slides back and forth on the inner side of the cylinder 471. When the piston 472 is away from the oil inlet pipe 475, the internal pressure of the cylinder 471 decreases, so that the one-way valve 476 guides the oil in the return oil tank 41 into the cylinder 471. When the piston 472 is close to the oil inlet pipe 475, the internal pressure of the cylinder 471 increases, so that the oil in the cylinder 471 is re-introduced into the outer shell 1 through the oil outlet pipe 477. Such a cycle can quickly introduce the oil into the outer shell 1, effectively avoiding the problem of insufficient oil in the outer shell 1 due to too slow oil return speed, which causes serious mechanical wear.

[0030] Furthermore, a buffer mechanism 5 is provided at both ends of the shaft body 3, and the buffer mechanism 5 includes two arc sleeves 1 51 and an arc sleeve 2 52. The arc sleeve 1 51 and the arc sleeve 2 52 are both sleeved on the shaft body 3 and have a complete circular ring structure at the joint. Two shock absorbers 53 are hinged on the outer sides of the arc sleeve 1 51 and the arc sleeve 2 52, and one end of the two shock absorbers 53 away from the corresponding arc sleeve 1 51 and the arc sleeve 2 52 is hinged to the inner wall of the outer shell 1.

[0031] The shaft body 3 is positioned by the arc sleeve 1 51 and the arc sleeve 2 52 , and the shaft body 3 can be buffered by the shock absorber 53 , so as to avoid the problem of abrasion and oil leakage of the shaft body 3 caused by violent shaking of the shaft body 3 .

[0032] Further, the shock absorber 53 includes a sleeve 531, one end of which is hinged to the inner wall of the housing 1, and the other end of the sleeve 531 is slidably connected to a sleeve rod 532, one end of which is hinged to the outer wall of the corresponding arc-shaped sleeve seat 1 51 and arc-shaped sleeve seat 2 52, and the inner side of the sleeve 531 is slidably connected to a friction block 533, one side of the friction block 533 is fixedly connected to the sleeve rod 532, and the inner side of the sleeve 531 is sleeved with a buffer spring 534, one end of the buffer spring 534 is in contact with the inner wall of the sleeve 531, and the other end of the buffer spring 534 is in contact with the friction block 533. The buffer spring 534 can buffer the impact force, so that the friction block 533 and the inner wall of the sleeve 531 have sliding friction, and finally convert the impact force into heat energy consumption.

[0033] Working principle: When the reducer is running, the engine oil is introduced into the oil return tank 41 through the oil return groove 42, and the engine oil in the housing 1 is introduced into the oil return tank 41 through the oil return groove 42, and then introduced into the oil guide hole 454 through the guide seat 43, and then filtered twice by the inner filter cartridge 453 and the outer filter cartridge 452 to filter out impurities of different sizes in the engine oil, and then the filtered engine oil is re-introduced into the mechanical structure in the housing 1 through the negative pressure member 47, so as to avoid the problem of oil leakage caused by mechanical wear of the shaft 3 due to engine oil impurities; When the reducer is running, the shaft 3 will rotate, so that the cam 4661 rotates synchronously. When the cam 4661 contacts the arc surface pressure block 4663, the arc surface pressure block 4663 is squeezed by the cam 4661 and moves downward, so that the pressure rod 4662 drives the movable seat 4664 to move downward. At this time, the return spring 4666 is compressed and accumulates potential energy, so that the connecting rod 4665 applies a thrust to the connecting plate 467 and the connecting plate 467 moves; when the cam 4661 is separated from the arc surface pressure block 4663, the return spring 4666 releases the potential energy, so that the pressure rod 4662 drives the movable seat 46 64 moves upward, so that the connecting plate 467 moves in the opposite direction, and in this cycle, the movable seat 4664 reciprocates up and down, so that the connecting plate 467 reciprocates in the horizontal direction, so that the sliding rod 1 461 and the plurality of sliding rods 2 464 slide back and forth synchronously, so that the cleaning ring 1 463 and the cleaning ring 2 465 slide back and forth, so that the cleaning ring 1 463 and the cleaning ring 2 465 clean the inner wall of the inner filter cartridge 453 and the inner wall of the outer filter cartridge 452 respectively, so as to prevent the filter holes of the inner filter cartridge 453 and the outer filter cartridge 452 from being blocked by impurities and affecting the normal filtering work; During the up and down reciprocating movement of the movable seat 4664, the connecting rod 2 474 will drive the push-pull rod 473 to slide back and forth, thereby causing the piston 472 to slide back and forth on the inner side of the cylinder 471. When the piston 472 is away from the oil inlet pipe 475, the internal pressure of the cylinder 471 decreases, causing the one-way valve 1 476 to guide the oil in the return oil tank 41 into the cylinder 471. When the piston 472 approaches the oil inlet pipe 475, the internal pressure of the cylinder 471 increases, causing the oil in the cylinder 471 to be re-introduced into the outer casing 1 through the oil outlet pipe 477. Such a cycle can quickly introduce the oil into the outer casing 1, effectively avoiding the problem of insufficient oil in the outer casing 1 due to the slow oil return speed, which causes serious mechanical wear.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A buffering and leak-proof reducer housing, comprising a housing (1), bearings (2) being fixedly connected to both ends of the housing (1), and a shaft (3) being rotatably connected between the two bearings (2), characterized in that: An oil return mechanism (4) is provided at the bottom end of the housing (1), the oil return mechanism (4) comprising an oil return tank (41) fixedly connected to the bottom of the housing (1), one end of the top of the oil return tank (41) being provided with an oil return groove (42) communicating with the interior of the housing (1), one end of the inner side of the oil return tank (41) being fixedly connected with an inclined flow guide seat (43), the bottom end of the flow guide seat (43) being provided with a filter element (45) for filtering engine oil, the inner side of the oil return tank (41) being provided with a cleaning assembly (46) for cleaning the filter element (45) by rotating the matching shaft (3), and one end of the oil return tank (41) being provided with a negative pressure element (47) for guiding the engine oil in the oil return tank (41) into the interior of the housing (1) by starting the matching cleaning assembly (46).

2. A buffer and leak-proof reducer housing according to claim 1, characterized in that: The filter element (45) comprises a partition (451) fixedly connected to the inner side of the oil return tank (41), an oil guide hole (454) being provided in the middle of the partition (451), an outer filter cartridge (452) being fixedly connected to one side of the partition (451), and a concentrically arranged inner filter cartridge (453) being fixedly connected to the inner side of the outer filter cartridge (452).

3. A buffer and leak-proof reducer housing according to claim 2, characterized in that: The inner diameter of the inner filter cartridge (453) is the same as the diameter of the oil guide hole (454), and the filter hole diameter of the outer filter cartridge (452) is larger than the filter hole diameter of the inner filter cartridge (453).

4. A buffered and leak-proof reducer housing according to claim 2, characterized in that: The cleaning assembly (46) includes a sliding rod (461) penetrating the side wall of the outer filter cartridge (452), the sliding rod (461) being slidably connected to the side wall of the outer filter cartridge (452), one end of the sliding rod (461) being fixedly connected to a mounting frame (462), the outer side of the mounting frame (462) being fixedly connected to a cleaning ring (463), the outer wall of the cleaning ring (463) being in contact with the inner wall of the inner filter cartridge (453), the other end of the sliding rod (461) being fixedly connected to a connecting plate (467), the outer side of the connecting plate (467) being provided with a pressing member (466) which drives the connecting plate (467) to reciprocate in a horizontal direction by rotating in cooperation with the shaft body (3).

5. A buffered and leak-proof reducer housing according to claim 4, characterized in that: The cleaning assembly (46) further comprises a plurality of sliding rods (464) which are distributed at equal angles around the connecting plate (467); a plurality of the sliding rods (464) penetrate the side wall of the outer filter cartridge (452), and a plurality of the sliding rods (464) are slidably connected to the side wall of the outer filter cartridge (452); one end of a plurality of the sliding rods (464) are fixedly connected to the outer edge of the connecting plate (467); the other end of a plurality of the sliding rods (464) are fixedly connected to the same cleaning ring (465); the outer wall of the cleaning ring (465) contacts the inner wall of the outer filter cartridge (452).

6. A buffered and leak-proof reducer housing according to claim 5, characterized in that: The pressing member (466) comprises a pressing rod (4662) penetrating the bottom wall of the housing (1); the pressing rod (4662) is slidably connected to the bottom wall of the housing (1); a curved pressing block (4663) is fixedly connected to the top of the pressing rod (4662); a cam (4661) is fixedly connected to the shaft (3); the cam (4661) intermittently contacts the curved pressing block (4663) by cooperating with the rotation of the shaft (3); the pressing rod (4662) The bottom end of the movable seat (4664) is fixedly connected, one end of the movable seat (4664) is hinged with a connecting rod (4665), the bottom end of the connecting rod (4665) is hinged to the outer wall of the connecting plate (467), a return spring (4666) is sleeved on the pressure rod (4662), the top end of the return spring (4666) is in contact with the arc surface pressure block (4663), and the bottom end of the return spring (4666) is in contact with the inner wall of the housing (1).

7. A buffered and leak-proof reducer housing according to claim 6, characterized in that: The negative pressure member (47) comprises a cylinder (471) fixedly connected to the inner side of the oil return tank (41); one end of the inner side of the cylinder (471) is slidably connected to a piston (472); one side of the piston (472) is fixedly connected to a push-pull rod (473) penetrating the side wall of the cylinder (471); the push-pull rod (473) is slidably connected to the side wall of the cylinder (471); one end of the push-pull rod (473) away from the piston (472) is hingedly connected to a second connecting rod (474); The top end of the second connecting rod (474) is hinged to one end of the movable seat (4664); one end of the bottom of the cylinder (471) is fixedly connected to an oil inlet pipe (475); a one-way valve (476) is fixedly connected to the oil inlet pipe (475); one end of the top of the cylinder (471) is fixedly connected to an oil outlet pipe (477); the outlet end of the oil outlet pipe (477) is communicated with the interior of the housing (1); and a one-way valve (478) is fixedly connected to the oil outlet pipe (477).

8. A buffer and leak-proof reducer housing according to claim 7, characterized in that: The one-way valve (476) is used to guide the oil in the oil inlet pipe (475) into the cylinder (471), and the one-way valve (478) is used to guide the oil in the cylinder (471) into the oil outlet pipe (477).

9. A buffered and leak-proof reducer housing according to claim 1, characterized in that: A buffer mechanism (5) is provided at both ends of the shaft body (3). The buffer mechanism (5) comprises two arc-shaped sleeve seats 1 (51) and an arc-shaped sleeve seat 2 (52). The arc-shaped sleeve seat 1 (51) and the arc-shaped sleeve seat 2 (52) are both sleeved on the shaft body (3) and have a complete circular ring structure at the joint. Two shock absorbers (53) are hingedly connected to the outer sides of the arc-shaped sleeve seat 1 (51) and the arc-shaped sleeve seat 2 (52). One end of the two shock absorbers (53) away from the corresponding arc-shaped sleeve seat 1 (51) and the arc-shaped sleeve seat 2 (52) is hingedly connected to the inner wall of the housing (1).

10. A buffered and leakproof reducer housing according to claim 9, characterized in that: The shock absorber (53) comprises a sleeve (531), one end of the sleeve (531) being hinged to the inner wall of the housing (1), the other end of the sleeve (531) being slidably connected to a sleeve rod (532), one end of the sleeve rod (532) being hinged to the outer wall of the corresponding arc-shaped sleeve seat 1 (51) and arc-shaped sleeve seat 2 (52), the inner side of the sleeve (531) being slidably connected to a friction block (533), one side of the friction block (533) being fixedly connected to the sleeve rod (532), the inner side of the sleeve (531) being sleeved with a buffer spring (534), one end of the buffer spring (534) being in contact with the inner wall of the sleeve (531), and the other end of the buffer spring (534) being in contact with the friction block (533).

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