A leakage prevention device for the oil passage disc of a hydraulic motor

Abstract

The present application discloses a leakage prevention device for an oil distribution disc of a hydraulic motor, belonging to the technical field of hydraulics. It includes a hydraulic motor body and an oil distribution disc installed on the hydraulic motor body. An oil delivery pipe passes through the oil distribution disc, and an oil delivery hole for the oil delivery pipe to pass through is provided on the oil distribution disc. A connecting sleeve is fixedly sleeved on the oil delivery pipe, and a fixing component for fixing the oil distribution disc is arranged on the connecting sleeve. A connecting groove for accommodating oil is arranged inside the connecting sleeve. A rotating sleeve is sleeved on the oil delivery pipe, and an oil inlet pipe passes through the end of the rotating sleeve far away from the oil delivery pipe. The oil inlet pipe passes through the connecting sleeve. A plurality of first through holes are provided on one side of the inner end face of the rotating sleeve far away from its own axis, and a plurality of second through holes are provided on the end face of the oil inlet pipe penetrating into the rotating sleeve. The first through holes and the second through holes correspond to each other one by one, and a driving component for driving the rotating sleeve to rotate is arranged on the connecting sleeve. The present application has the effect of reducing the environmental pollution of the hydraulic motor to the use environment.

Description

Technical Field

[0001] This application relates to the field of hydraulic technology, and particularly relates to a leakage prevention device for an oil distribution disc of a hydraulic motor. Background Art

[0002] The swinging cylinder type hydraulic motor is a type of radial piston motor. The swinging cylinder type hydraulic motor has the advantages of small volume, large torque, strong low-speed stability performance, high efficiency, long service life, etc., and is widely used in hydraulic systems of light industrial machinery, construction machinery, mining machinery, hoisting and transportation machinery, ship deck machinery, agricultural machinery, etc.

[0003] In the related art, a Chinese utility model patent with the publication number CN206338152U discloses a swinging cylinder type hydraulic motor, which includes a housing, a cylinder head, an eccentric shaft, and an odd number of piston cylinder assemblies. Each piston cylinder assembly includes a cylinder and a hollow piston. The relative contact surfaces of each piston and the cylinder head are spherical surfaces, and a hanging rod for connection and a first elastic member for tightly contacting the relative contact spherical surfaces are provided therebetween; each cylinder is constrained on the eccentric shaft by a retaining ring, and a second elastic member for tightly contacting the relative contact surfaces of the cylinder and the eccentric shaft is provided between the retaining ring and the cylinder, and the relative contact surface of the cylinder and the eccentric shaft is a cylindrical surface.

[0004] Regarding the above related art, the inventor believes that the small holes on the oil distribution disc of the housing are prone to nitriding deformation, resulting in oil leakage from the oil distribution disc, thereby affecting the use environment. Summary of the Invention

[0005] In order to reduce the pollution of the hydraulic motor to the use environment, this application provides a leakage prevention device for an oil distribution disc of a hydraulic motor.

[0006] The leakage prevention device for an oil distribution disc of a hydraulic motor provided by this application adopts the following technical solutions:

[0007] A leakage prevention device for an oil distribution disc of a hydraulic motor includes a hydraulic motor body and an oil distribution disc installed on the hydraulic motor body. An oil delivery pipe penetrates through the oil distribution disc, and an oil delivery hole for the oil delivery pipe to pass through is opened on the oil distribution disc. A connecting sleeve is fixedly sleeved on the oil delivery pipe, and a fixing component for fixing the oil distribution disc is arranged on the connecting sleeve. A connecting groove for accommodating oil is arranged in the connecting sleeve. A rotating sleeve is sleeved on the oil delivery pipe. An oil inlet pipe penetrates through the end of the rotating sleeve away from the oil delivery pipe. The oil inlet pipe penetrates through the connecting sleeve. A plurality of first through holes are opened on the inner end surface of the rotating sleeve on the side far from its own axis. A plurality of second through holes are opened on the end surface of the oil inlet pipe penetrating into the rotating sleeve. The first through holes and the second through holes correspond to each other one by one. A driving component for driving the rotating sleeve to rotate is arranged on the connecting sleeve.

[0008] By adopting the above technical solution, the operator inserts the oil pipeline into the oil inlet hole, and then the operator uses the fixing component to fix the connecting sleeve. When the oil passing disc leaks oil, the oil flows into the connecting groove for collection to prevent oil leakage. Then, the operator uses the driving component to drive the rotating sleeve to rotate. The rotation of the rotating sleeve causes the first through hole and the second through hole to be misaligned, thereby separating the oil inlet pipe from the oil pipeline and preventing continuous oil leakage, reducing the pollution of the hydraulic motor to the use environment.

[0009] Preferably, the fixing component includes a fixing sleeve sleeved on the connecting sleeve and a fixing disc fixedly sleeved on the fixing sleeve. The fixing sleeve is rotatably connected to the connecting sleeve. Threads are provided on the outer peripheral surface of the fixing sleeve, and threads are provided on the inner wall of the oil inlet hole. The fixing sleeve is in threaded cooperation with the inner wall of the oil inlet hole.

[0010] By adopting the above technical solution, the operator inserts the connecting sleeve into the oil inlet hole to align the fixing sleeve with the oil inlet hole. Then, the operator rotates the fixing disc. The rotation of the fixing disc drives the fixing sleeve to rotate, and the rotation of the fixing sleeve fixes the fixing sleeve to the oil passing disc, which is convenient for the operator to use.

[0011] Preferably, the driving component includes a driving gear rotatably installed in the connecting sleeve and a driven gear fixedly sleeved on the rotating sleeve. The driving gear meshes with the driven gear. A control component for driving the driving gear to rotate is provided in the connecting sleeve.

[0012] By adopting the above technical solution, the operator uses the control component to drive the driving gear to rotate. The rotation of the driving gear drives the driven gear to rotate, and the rotation of the driven gear drives the rotating sleeve to rotate, thereby facilitating the operator to close the oil inlet pipe and the oil pipeline.

[0013] Preferably, the control component includes a control rod slidably inserted into the connecting sleeve and a control sleeve slidably sleeved on the control rod. The driving gear is fixedly sleeved on the control sleeve. A spiral convex block is provided on the control rod, and a spiral groove is formed on the inner wall of the control sleeve. The spiral convex block on the control rod is in sliding fit with the spiral groove on the inner wall of the control sleeve. An adjusting component for driving the control rod to move is provided in the connecting sleeve.

[0014] By adopting the above technical solution, the operator uses the adjusting component to drive the control rod to move. The control rod drives the control sleeve to rotate through the spiral convex block, and the rotation of the control sleeve drives the driving gear to rotate, thereby facilitating the operator to drive the rotating sleeve to rotate.

[0015] Preferably, the adjusting assembly includes an iron block fixedly connected to the control rod and an electromagnet installed in the connecting sleeve. A control chute for slidably cooperating with the control rod is formed in the connecting sleeve, and the electromagnet is installed on the inner end face of the control chute.

[0016] By adopting the above technical solution, the operator activates the electromagnet, the electromagnet adsorbs the iron block, and the movement of the iron block drives the movement of the control rod, thereby facilitating the operator to drive the control sleeve to rotate.

[0017] Preferably, a control plate is fixedly sleeved on the control rod. A sliding groove for slidably cooperating with the control plate is formed in the inner wall of the control chute. A control spring is fixedly connected to the control plate, and the end of the control spring away from the control plate is fixedly connected to the inner end face of the sliding groove.

[0018] By adopting the above technical solution, the operator activates the electromagnet, the electromagnet adsorbs the iron block, the movement of the iron block drives the movement of the control rod, the movement of the control rod drives the movement of the control plate, and the movement of the control plate makes the control spring in a compressed state. When the operator stops supplying oil, the operator turns off the electromagnet, and the electromagnet stops adsorbing the iron block. At this time, the control rod moves back under the action of the control spring, which is convenient for the operator to use in a cycle.

[0019] Preferably, a moving block is slidably inserted into the connecting sleeve. A moving chute for slidably cooperating with the moving block is formed in the connecting sleeve. The moving block can penetrate into the connecting groove. A first iron sheet is fixedly connected to the short part of the moving block penetrating into the moving chute. A second iron sheet and a third iron sheet are fixedly connected to the inner wall of the moving chute. The first iron sheet can be in contact with the second iron sheet and the third iron sheet respectively. The second iron sheet and the third iron sheet are electrically connected to the electromagnet respectively.

[0020] By adopting the above technical solution, when the hydraulic motor is in use and the oil distribution plate leaks oil, at this time, the oil continuously enters the connecting groove, the pressure in the connecting groove increases and drives the moving block to move. The movement of the moving block drives the movement of the first iron sheet, and the first iron sheet contacts the second iron sheet and the third iron sheet, thereby activating the electromagnet to close the oil delivery pipe and the oil inlet pipe, so as to prevent the oil from leaking continuously.

[0021] Preferably, a moving spring is fixedly connected to the first iron sheet, and the end of the moving spring away from the first iron sheet is fixedly connected to the inner end face of the moving chute.

[0022] By adopting the above technical solution, when the hydraulic motor is in use and the oil passing disc leaks oil, at this time, the oil continuously enters the connecting groove, the pressure in the connecting groove increases to drive the moving block to move, and at this time, the moving spring is in a compressed state. The operator removes the connecting sleeve. At this time, the pressure in the connecting groove decreases, and the moving block resets under the action of the moving spring, thus facilitating the operator to recycle it.

[0023] Preferably, a collecting pipe is penetrated through the connecting sleeve. The inner wall of the collecting pipe is communicated with the inner side wall of the moving chute. A storage tank is installed at the end of the collecting pipe passing through the connecting sleeve. An installation hole for the collecting pipe to pass through is opened on the storage tank. A locking assembly for fixing the storage tank is arranged on the connecting sleeve.

[0024] By adopting the above technical solution, the operator inserts the collecting pipe into the storage tank through the installation hole, and then the operator uses the locking assembly to fix the storage tank. When the hydraulic motor is in use and the oil passing disc leaks oil, at this time, the oil continuously enters the connecting groove, the pressure in the connecting groove increases to drive the moving block to move, and the movement of the moving block makes the collecting pipe communicate with the connecting groove, so that the oil enters the storage tank, thus facilitating the operator to collect the oil for centralized treatment.

[0025] Preferably, the locking assembly includes a locking plate fixedly connected to the connecting sleeve, a locking rod slidably penetrated through the locking plate. A locking slot for inserting and cooperating with the locking rod is opened on the storage tank. A locking chute for slidably cooperating with the locking rod is opened on the locking plate. A locking spring is fixedly connected to the locking rod. The end of the locking spring away from the locking rod is fixedly connected to the inner end face of the locking chute. A slope is arranged at the end of the locking rod passing through the locking plate. A pull rod is fixedly connected to the locking rod. The pull rod is penetrated through the locking plate. A pull plate is fixedly connected to the end of the pull rod passing through the locking rod.

[0026] By adopting the above technical solution, the operator places the storage tank on the locking plate, and then the operator passes the collecting pipe through the installation hole. The operator pushes the storage tank, and the movement of the storage tank makes the locking rod enter the locking chute under the action of the slope. The operator continues to move the storage tank. When the locking rod moves to the position of the locking slot, the locking rod is inserted into the locking slot under the action of the locking spring, so that the locking rod cooperates with the collecting pipe to fix the storage tank.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The operator inserts the oil delivery pipe into the oil delivery hole, and then the operator uses the fixing component to fix the connecting sleeve. When the oil passing plate leaks oil, the oil flows into the connecting groove for collection to prevent oil leakage. Then, the operator uses the driving component to drive the rotating sleeve to rotate. The rotation of the rotating sleeve causes the first through hole and the second through hole to be misaligned, thereby separating the oil inlet pipe from the oil delivery pipe to prevent continuous oil leakage and reducing the pollution of the hydraulic motor to the use environment;

[0029] 2. When the hydraulic motor is in use and the oil passing plate leaks oil, at this time, oil continuously enters the connecting groove, and the pressure in the connecting groove increases to drive the moving block to move. At this time, the moving spring is in a compressed state. The operator removes the connecting sleeve. At this time, the pressure in the connecting groove decreases, and the moving block resets under the action of the moving spring, thus facilitating the operator to recycle;

[0030] 3. The operator inserts the collecting pipe into the storage tank through the installation hole, and then the operator uses the locking component to fix the storage tank. When the hydraulic motor is in use and the oil passing plate leaks oil, at this time, oil continuously enters the connecting groove, and the pressure in the connecting groove increases to drive the moving block to move. The movement of the moving block causes the collecting pipe to communicate with the connecting groove, so that the oil enters the storage tank, thus facilitating the operator to collect the oil for centralized treatment. Description of the Drawings

[0031] Figure 1 is a schematic structural diagram of an anti-leakage device for the oil passing plate of a hydraulic motor according to an embodiment of the present application.

[0032] Figure 2 is a schematic internal structural diagram of an anti-leakage device for the oil passing plate of a hydraulic motor according to an embodiment of the present application.

[0033] Figure 3 is a schematic structural diagram of the end face of the oil inlet pipe according to an embodiment of the present application.

[0034] Figure 4 is Figure 2 an enlarged schematic view of part A in

[0035] Figure 5 is Figure 2 an enlarged schematic view of part B in

[0036] Figure 6 is Figure 2 an enlarged schematic view of part C in

[0037] Description of the Reference Numerals:

[0038] 1. Hydraulic motor body; 11. Oil passage plate; 12. Oil pipeline; 13. Oil passage hole; 14. Connecting sleeve; 15. Connecting groove; 16. Rotating sleeve; 161. First through hole; 17. Inlet pipe; 171. Second through hole; 18. Moving block; 181. Moving chute; 182. First iron sheet; 183. Second iron sheet; 184. Third iron sheet; 185. Moving spring; 19. Collection pipe; 191. Storage tank; 192. Mounting hole; 2. Fixing component; 21. Fixing sleeve; 22. Fixing disc; 3. Driving component; 31. Driving gear; 32. Driven gear; 4. Control component; 41. Control rod; 42. Control sleeve; 43. Control board; 44. Sliding groove; 45. Control spring; 5. Adjusting component; 51. Iron block; 52. Electromagnet; 53. Control chute; 6. Locking component; 61. Locking plate; 62. Locking rod; 63. Locking slot; 64. Locking chute; 65. Locking spring; 66. Pull rod; 67. Pulling disc. Detailed implementation mode

[0039] The following will further describe the present application in detail with reference to the attached Figures 1-6 drawings.

[0040] The embodiment of the present application discloses an anti-leakage device for the oil passage plate of a hydraulic motor. Refer to Figure 1 , the anti-leakage device includes a hydraulic motor body 1, and an oil passage plate 11 is installed on the hydraulic motor body 1.

[0041] Refer to Figure 1 , Figure 2 , an oil pipeline 12 penetrates through the oil passage plate 11, an oil passage hole 13 for the oil pipeline 12 to pass through is opened on the oil passage plate 11, and a connecting sleeve 14 is arranged on the oil pipeline 12. The connecting sleeve 14 is arranged vertically, the connecting sleeve 14 is fixedly sleeved on the oil pipeline 12, and a fixing component 2 for fixing the oil passage plate 11 is arranged on the connecting sleeve 14.

[0042] Refer to Figure 2 , the fixing component 2 includes a fixing sleeve 21 and a fixing disc 22. The fixing sleeve 21 is arranged vertically, the fixing sleeve 21 is sleeved on the connecting sleeve 14, and the fixing sleeve 21 is rotatably connected with the connecting sleeve 14. Threads are arranged on the fixing sleeve 21, threads are arranged on the inner wall of the oil passage hole 13, and the fixing sleeve 21 is in threaded cooperation with the inner wall of the oil passage hole 13. The fixing disc 22 is arranged horizontally, the fixing disc 22 is sleeved on the fixing sleeve 21, and the fixing disc 22 is fixedly connected with the fixing sleeve 21.

[0043] The operator inserts the oil pipeline 12 into the oil inlet hole 13, and the operator connects the sleeve 14 and inserts it into the oil inlet hole 13, so that the fixed sleeve 21 is aligned with the oil inlet hole 13. Then the operator rotates the fixed disc 22, and the rotation of the fixed disc 22 drives the fixed sleeve 21 to rotate. The rotation of the fixed sleeve fixes the connecting sleeve 14.

[0044] Refer to Figure 2 、 Figure 3 At the end of the connecting sleeve 14 away from the oil pipeline 12, an oil inlet pipe 17 is provided. The oil inlet pipe 17 is vertically arranged and passes through the connecting sleeve 14. The oil inlet pipe 17 is fixedly connected to the connecting sleeve 14. A plurality of second through holes 171 are provided on the end surface of the oil inlet pipe 17 penetrating into the connecting sleeve 14. The second through holes 171 are fan-shaped holes, and the second through holes 171 are evenly arranged around the axis of the inner end surface of the oil inlet pipe 17. The sum of the central angle radian measures of all the second through holes 171 is less than π radians.

[0045] Refer to Figure 2 Between the oil inlet pipe 17 and the oil pipeline 12, a rotating sleeve 16 is provided. One end of the rotating sleeve is sleeved on the oil pipeline 12, and the other end of the rotating sleeve 16 is sleeved on the oil inlet pipe 17. The inner wall of the rotating sleeve separates the oil inlet pipe 17 from the oil pipeline 12. A plurality of first through holes 161 are provided on the inner wall of the rotating sleeve 16. The first through holes 161 are fan-shaped holes, and the first through holes 161 are evenly arranged around the axis of the rotating sleeve 16. The first through holes 161 correspond to the second through holes 171 one by one, and the central angle radian measure of the first through holes 161 is less than that of the second through holes 171.

[0046] Refer to Figure 2 、 Figure 4 On the connecting sleeve 14, a driving assembly 3 for driving the rotating sleeve 16 to rotate is provided. The driving assembly 3 includes a driving gear 31 and a driven gear 32. The driving gear 31 is horizontally arranged and is rotatably installed in the connecting sleeve 14. The driven gear 32 is horizontally arranged and is sleeved on the rotating sleeve 16. The driven gear 32 is fixedly connected to the rotating sleeve 16, and the driven gear 32 meshes with the driving gear 31.

[0047] Refer to Figure 2 、 Figure 4, a control assembly 4 for driving the driving gear 31 to rotate is arranged inside the connecting sleeve 14. The control assembly 4 includes a control rod 41 and a control sleeve 42. The control rod 41 is arranged vertically and slidably penetrates through the connecting sleeve 14. A control chute 53 for slidably matching with the control rod 41 is formed inside the connecting sleeve 14. A control plate 43 is arranged on the control rod 41. The control plate 43 is arranged horizontally, sleeved on the control rod 41, and fixedly connected with the control rod 41. A sliding groove 44 for slidably matching with the control plate 43 is formed on the inner wall of the control chute 53.

[0048] Refer to Figure 4 , a control spring 45 is arranged on the control plate 43. The control spring 45 is arranged vertically. One end of the control spring 45 is fixedly connected with the control plate 43, and the other end of the control spring 45 is fixedly connected with the inner end surface of the sliding groove 44. The control sleeve 42 is arranged vertically and slidably sleeved on the control rod 41. The driving rack is fixedly sleeved on the control sleeve 42. A spiral convex block is arranged on the control rod 41, and a spiral groove is formed on the inner wall of the control sleeve 42. The spiral convex block on the control rod 41 slidably matches with the spiral groove on the inner wall of the control sleeve 42.

[0049] Refer to Figure 4 , an adjusting assembly 5 for driving the control rod 41 to move is arranged inside the connecting sleeve 14. The adjusting assembly 5 includes an iron block 51 and an electromagnet 52. The iron block 51 is arranged on the control rod 41 and fixedly connected with the end of the control rod 41 far away from the control sleeve 42. The electromagnet 52 is installed on the inner bottom surface of the control chute 53.

[0050] Refer to Figure 2 , Figure 5 , a connecting groove 15 is arranged inside the connecting sleeve 14. A moving block 18 penetrates through the inner bottom surface of the connecting groove 15. The moving block 18 is arranged vertically. A moving chute 181 for slidably matching with the moving block 18 is formed on the inner bottom surface of the connecting groove 15. A first iron sheet 182 is arranged on the end of the moving block 18 located inside the moving chute 181. The first iron sheet 182 is arranged horizontally and fixedly connected with the moving block 18. A moving spring 185 is arranged on the first iron sheet 182. The moving spring 185 is arranged vertically and fixedly connected with the moving block 18. The end of the moving spring 185 far away from the moving block 18 is fixedly connected with the inner end surface of the moving chute 181.

[0051] Refer to Figure 5, one end of the first iron sheet 182 is provided with a second iron sheet 183, and the other end of the first iron sheet 182 is provided with a third iron sheet 184. The first iron sheet 182 can be in contact with the second iron sheet 183 and the third iron sheet 184 respectively, and the second iron sheet 183 and the third iron sheet 184 are electrically connected to the electromagnet 52 respectively. The second iron sheet 183 is horizontally arranged and fixedly connected to the inner wall of the moving chute 181. The third iron sheet 184 is horizontally arranged, and the third iron sheet 184 is symmetrically arranged with the second iron sheet 183 about the axis of the moving block 18. The third iron sheet 184 is fixedly connected to the inner wall of the moving chute 181.

[0052] When the hydraulic motor body 1 is in use and the oil pan 11 leaks oil, at this time, the oil continuously enters the connecting groove 15. The increased pressure in the connecting groove 15 drives the moving block 18 to move. The movement of the moving block 18 drives the first iron sheet 182 to move. The first iron sheet 182 contacts the second iron sheet 183 and the third iron sheet to activate the electromagnet 52. The electromagnet 52 attracts the iron block 51, and the iron block 51 drives the control sleeve 42 to rotate through the control rod 41. The control sleeve 42 drives the driven gear 32 to rotate through the driving gear 31. The driven gear 32 makes the first through hole 161 and the second through hole 171 misaligned through the rotating sleeve 16, so as to separate the oil inlet pipe 17 from the oil outlet pipe 12, prevent continuous oil leakage, and reduce the pollution of the hydraulic motor to the use environment.

[0053] Refer to Figure 2 , a collecting pipe 19 is arranged inside the connecting sleeve 14. The collecting pipe 19 is horizontally arranged, and the inner wall of the collecting pipe 19 is communicated with the inner wall of the moving chute 181. The collecting pipe 19 is fixedly connected to the connecting sleeve 14. A storage tank 191 is arranged at the end of the collecting pipe 19 passing through the connecting sleeve 14. The storage tank 191 is vertically arranged, and an installation hole 192 for the collecting pipe 19 to pass through is arranged on the storage tank 191.

[0054] Refer to Figure 2 、 Figure 6 , a locking assembly 6 for fixing the storage tank 191 is arranged on the connecting sleeve 14. The locking assembly 6 includes a locking plate 61 and a locking rod 62. The locking plate 61 is horizontally arranged and fixedly connected to the connecting sleeve 14. The locking rod 62 is vertically arranged and passes through the locking plate 61. A slope is arranged at the end of the locking rod 62 passing through the locking plate 61. A locking slot 63 for plugging and matching with the locking rod 62 is arranged on the storage tank 191.

[0055] Refer to Figure 2 、 Figure 6, a locking chute 64 for slidingly engaging with a locking rod 62 is formed on the locking plate 61. A locking spring 65 is disposed in the locking chute 64. The locking spring 65 is vertically arranged. One end of the locking spring 65 is fixedly connected to the locking rod 62, and the other end of the locking spring 65 is fixedly connected to the inner end of the locking chute 64. The operator places the storage tank 191 on the locking plate 61. Then, the operator passes the collection pipe 19 through the mounting hole 192. The operator pushes the storage tank 191. The movement of the storage tank 191 causes the locking rod 62 to enter the locking chute 64 under the action of the inclined surface. The operator continues to move the storage tank 191. When the locking rod 62 moves to the position of the locking slot 63, the locking rod 62 is inserted into the locking slot 63 under the action of the locking spring 65, so that the locking rod 62 cooperates with the collection pipe 19 to fix the storage tank 191.

[0056] Referring to Figure 6 , a pull rod 66 is provided on the locking rod 62. The pull rod 66 is vertically arranged and fixedly connected to the bottom surface of the locking rod 62. The pull rod 66 passes through the locking plate 61, and a pull plate 67 is installed at the end of the pull rod 66 that passes through the locking plate 61. The operator pulls the pull plate 67. The pull plate 67 drives the locking rod 62 to move through the pull rod 66, and the locking rod 62 moves away from the locking slot 63, thereby releasing the fixed state of the storage tank 191 and facilitating the operator to replace the storage tank 191 for recycling.

[0057] The implementation principle of an anti-leakage device for a hydraulic motor oil distribution plate in an embodiment of the present application is as follows: The operator inserts the oil delivery pipe 12 into the oil delivery hole 13, and inserts the connecting sleeve 14 into the oil delivery hole 13 so that the fixed sleeve 21 is aligned with the oil delivery hole 13. Then, the operator rotates the fixed disc 22. The rotation of the fixed disc 22 drives the fixed sleeve 21 to rotate, and the rotation of the fixed sleeve fixes the connecting sleeve 14. When the hydraulic motor is in use and the oil distribution plate 11 leaks oil, at this time, the oil continuously enters the connecting groove 15. The increased pressure in the connecting groove 15 drives the moving block 18 to move. The movement of the moving block 18 drives the first iron sheet 182 to move. The first iron sheet 182 abuts against the second iron sheet 183 and the third iron sheet to activate the electromagnet 52. The electromagnet 52 attracts the iron block 51. The iron block 51 drives the control sleeve 42 to rotate through the control rod 41. The control sleeve 42 drives the driven gear 32 to rotate through the driving gear 31. The driven gear 32 rotates the rotating sleeve 16, so that the first through hole 161 is misaligned with the second through hole 171, thereby separating the oil inlet pipe 17 from the oil delivery pipe 12, preventing continuous oil leakage, and reducing the pollution of the use environment of the hydraulic motor.

[0058] The oil continuously enters the connecting groove 15. The increased pressure in the connecting groove 15 drives the moving block 18 to move. The movement of the moving block 18 causes the collection pipe 19 to communicate with the connecting groove 15, so that the oil enters the storage tank 191, facilitating the operator to collect the oil for centralized treatment.

[0059] The above are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A leakage prevention device for an oil pan of a hydraulic motor, comprising a hydraulic motor body (1) and an oil pan (11) mounted on the hydraulic motor body (1), characterized in that: An oil delivery pipe (12) is passed through the oil passing pan (11), an oil delivery hole (13) is opened on the oil passing pan (11) for the oil delivery pipe (12) to pass through, a connecting sleeve (14) is fixedly sleeved on the oil delivery pipe (12), a fixing assembly (2) for fixing the oil passing pan (11) is arranged on the connecting sleeve (14), a connecting groove (15) for containing oil is arranged in the connecting sleeve (14), a rotating sleeve (16) is sleeved on the oil delivery pipe (12), and the rotating sleeve (16) is away from the oil delivery pipe (12). ) is provided with an oil inlet pipe (17) on the end of the rotating sleeve (16), the oil inlet pipe (17) is provided on the connecting sleeve (14), a plurality of first through holes (161) are provided on the inner end surface of the rotating sleeve (16) away from the axis thereof, a plurality of second through holes (171) are provided on the end surface of the rotating sleeve (16) where the oil inlet pipe (17) passes through the rotating sleeve (16), the first through holes (161) and the second through holes (171) correspond one to one, and a driving component (3) for driving the rotating sleeve (16) to rotate is provided on the connecting sleeve (14); The driving assembly (3) comprises a driving gear (31) rotatably mounted in the connecting sleeve (14) and a driven gear (32) fixedly sleeved on the rotating sleeve (16), the driving gear (31) meshing with the driven gear (32), and a control assembly (4) for driving the driving gear (31) to rotate is arranged in the connecting sleeve (14); The control assembly (4) comprises a control rod (41) slidably inserted into the connecting sleeve (14), a control sleeve (42) slidably sleeved on the control rod (41), the driving gear (31) is fixedly sleeved on the control sleeve (42), a spiral protrusion is arranged on the control rod (41), a spiral groove is opened on the inner wall of the control sleeve (42), the spiral protrusion on the control rod (41) is slidably matched with the spiral groove on the inner wall of the control sleeve (42), and an adjustment assembly (5) for driving the control rod (41) to move is arranged in the connecting sleeve (14); The adjustment assembly (5) comprises an iron block (51) fixedly connected to the control rod (41), and an electromagnet (52) installed in the connecting sleeve (14); a control slide groove (53) for slidingly cooperating with the control rod (41) is provided in the connecting sleeve (14); and the electromagnet (52) is installed on the inner end surface of the control slide groove (53); A control plate (43) is fixedly sleeved on the control rod (41), a sliding groove (44) for slidingly cooperating with the control plate (43) is opened on the inner wall of the control sliding groove (53), a control spring (45) is fixedly connected to the control plate (43), and the end of the control spring (45) away from the control plate (43) is fixedly connected to the inner end surface of the sliding groove (44); A moving block (18) is slidably inserted into the connecting sleeve (14), and a moving slide groove (181) for slidingly cooperating with the moving block (18) is provided on the connecting sleeve (14). The moving block (18) can be inserted into the connecting groove (15), and a first iron sheet (182) is fixedly connected to the end of the moving block (18) inserted into the moving slide groove (181), and a second iron sheet (183) is fixedly connected to the inner wall of the moving slide groove (181), and a third iron sheet (184) is fixedly connected to the inner wall of the moving slide groove (181), and the first iron sheet (182) can be respectively abutted against the second iron sheet (183) and the third iron sheet (184), and the second iron sheet (183) and the third iron sheet (184) are respectively electrically connected to the electromagnet (52); A moving spring (185) is fixedly connected to the first iron sheet (182), and the end of the moving spring (185) away from the first iron sheet (182) is fixedly connected to the inner end surface of the moving slide groove (181).

2. The anti-leakage device for the oil pan of a hydraulic motor according to claim 1, characterized in that: The fixing assembly (2) comprises a fixing sleeve (21) sleeved on the connecting sleeve (14), and a fixing disc (22) fixedly sleeved on the fixing sleeve (21); the fixing sleeve (21) is rotatably connected to the connecting sleeve (14); a thread is provided on the outer peripheral surface of the fixing sleeve (21); a thread is provided on the inner wall of the oil delivery hole (13); the fixing sleeve (21) and the inner wall of the oil delivery hole (13) are threadedly matched.

3. The anti-leakage device for the oil pan of a hydraulic motor according to claim 1, characterized in that: A collecting pipe (19) is passed through the connecting sleeve (14), the inner wall of the collecting pipe (19) is connected to the inner wall of the movable slide groove (181), a storage tank (191) is installed on the end of the collecting pipe (19) passing through the connecting sleeve (14), and a mounting hole (192) for the collecting pipe (19) to pass through is opened on the storage tank (191), and a locking component (6) for fixing the storage tank (191) is provided on the connecting sleeve (14).

4. The anti-leakage device for the oil pan of a hydraulic motor according to claim 3, characterized in that: The locking assembly (6) comprises a locking plate (61) fixedly connected to the connecting sleeve (14), a locking rod (62) slidably inserted into the locking plate (61), a locking slot (63) for plugging and cooperating with the locking rod (62) is provided on the storage tank (191), a locking groove (64) for slidingly cooperating with the locking rod (62) is provided on the locking plate (61), and a locking spring is fixedly connected to the locking rod (62). (65), the end of the locking spring (65) away from the locking rod (62) is fixedly connected to the inner end surface of the locking groove (64), and an inclined surface is provided on the end of the locking rod (62) passing through the locking plate (61), and a pull rod (66) is fixedly connected to the locking rod (62), and the pull rod (66) is passed through the locking plate (61), and a pull plate (67) is fixedly connected to the end of the pull rod (66) passing through the locking rod (62).

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