An integrated device for preventing oil leakage of a reducer

Abstract

The present invention discloses an integrated device for preventing oil leakage of a reducer, which belongs to the technical field of preventing oil leakage of a reducer. The device comprises a reducer lower housing and a reducer upper cover for sealing the reducer lower housing, wherein the outer surface of the reducer lower housing is fixedly connected to an oil guide shell, the outer surface of the oil guide shell is fixedly connected to a sealing cover, the bottom end of the oil guide shell is fixedly connected to an oil outlet pipe, the oil outlet pipe is plugged into the interior of an oil collecting pipe, the bottom end of the oil collecting pipe is fixedly connected to a top column, and a bracket is fixedly connected below the oil guide shell on the reducer lower housing. Through the present invention, when oil leakage occurs in the seal at the rotating shaft, the leaked oil can enter the interior of the oil guide shell, and under the action of gravity, it will gather at the bottom of the oil guide shell and be discharged into the interior of the oil collecting pipe through the oil outlet pipe. The staff can visually see whether there is oil leakage at the reducer rotating shaft by observing the pumped liquid reserve inside the oil collecting pipe, and the protection of the oil guide shell can effectively prevent the leaked oil from being thrown into the air.

Description

Technical Field

[0001] The invention relates to an integrated device for preventing oil leakage of a reducer, and belongs to the technical field of preventing oil leakage of a reducer. Background Art

[0002] The reducer is a core component in the mechanical transmission system. It is mainly used to reduce the speed and increase the torque. At the same time, it can realize functions such as changing the transmission direction and matching the speed and load.

[0003] During the operation of the reducer, when the seal of the rotating shaft is damaged, the oil inside the reducer will leak out, resulting in a reduction in the lubricating oil inside the reducer. If the oil leakage is not discovered in time, when the oil level is lower than the lowest scale, the gears, bearings and other moving parts cannot be fully lubricated, which can easily cause damage. The existing method mainly relies on observing the appearance of the reducer to determine whether oil leakage occurs. However, sometimes the amount of oil leakage is small and difficult to be discovered, which can easily lead to misjudgment and the oil leakage fault cannot be handled in time, affecting the use of the reducer. For this reason, we propose an integrated anti-oil leakage device for the reducer. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an integrated anti-oil leakage device for a reducer, which solves the problem in the prior art that the amount of oil leakage is small, difficult to be discovered, prone to misjudgment, and the oil leakage fault cannot be handled in time, affecting the use of the reducer.

[0005] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions:

[0006] An integrated anti-oil seepage device for a reducer comprises a reducer lower housing and a reducer upper cover for sealing the reducer lower housing, an outer surface of the reducer lower housing is fixedly connected to an oil guide shell, an outer surface of the oil guide shell is fixedly connected to a sealing cover, a rotating shaft is inserted into the interior of the sealing cover, a sealing ring is provided between the sealing cover and the rotating shaft, an oil outlet pipe is fixedly connected to the bottom end of the oil guide shell, the oil outlet pipe is inserted into the interior of an oil collecting pipe, the oil collecting pipe is made of transparent plastic, a top column is fixedly connected to the bottom end of the oil collecting pipe, a bracket is fixedly connected to the bottom of the oil guide shell on the reducer lower housing, a spring is provided between the inner bottom wall of the bracket and the bottom end of the oil collecting pipe, the bottom end of the bracket is fixedly connected to a mounting bracket, the inner bottom wall of the mounting bracket is fixedly connected to a push button switch, and the push button switch is electrically connected to a buzzer through a wire.

[0007] By adopting the above technical solution, when oil leakage occurs in the seal at the rotating shaft, the leaked oil can enter the oil guide housing, and under the action of gravity, it will gather at the bottom of the oil guide housing and be discharged into the oil collecting pipe through the oil outlet pipe. The staff can visually see whether there is oil leakage at the reducer rotating shaft by observing the pumped liquid reserve inside the oil collecting pipe. The protection of the oil guide housing can effectively prevent the leaked oil from being thrown into the air. The collection of lubricating oil can enable the staff to discover oil leakage more promptly and deal with the oil leakage problem in advance. If the staff is busy and fails to observe the oil collecting pipe in time, as the oil inside the oil collecting pipe increases, pressure can be applied downward to the spring to move the oil collecting pipe downward. When the spring applies pressure to the button switch, the button switch can control the buzzer to sound, which can prompt the staff, so that the staff can stop the machine in time for processing, thereby ensuring the stable and safe operation of the equipment.

[0008] The present invention is further configured as follows: a positioning column is fixedly connected to the oil guide housing, the positioning column is inserted into the interior of the sealing cover, and is fixed by a locking nut.

[0009] By adopting the above technical solution, the sealing cover is detachably connected to the oil guide housing. The staff can open the sealing cover to observe whether there is oil attached to the inner wall of the oil guide housing. When the inner wall of the oil guide housing needs to be cleaned, the staff can open the sealing cover to clean the oil guide housing more conveniently.

[0010] The present invention is further configured as follows: a slide groove is opened inside the bracket, a limiting block is fixedly connected to the outer surface of the oil collecting pipe, the limiting block is slidably connected to the inside of the slide groove, a through hole is opened on the inner bottom wall of the bracket, the top column is inserted into the inside of the through hole, and the spring is sleeved on the outer surface of the top column.

[0011] By adopting the above technical solution, the dual limiting effects of the slide groove and the limiting block and the through hole and the top column can prevent the oil collecting pipe from being easily offset when moving up and down, and improve stability.

[0012] The present invention is further configured such that: sealing grooves are provided on the opposite surfaces of the reducer lower housing and the reducer upper cover, and the interior of the sealing grooves is clamped with a sealing gasket.

[0013] By adopting the above technical solution and installing the sealing gasket inside the sealing groove, the seal between the reducer lower housing and the reducer upper cover can be made tighter, thereby preventing lubricating oil from leaking from the connection between the reducer lower housing and the reducer upper cover.

[0014] The present invention is further configured as follows: a positioning screw hole is provided at each of the four corners of the lower housing of the reducer, a positioning hole is provided at each of the four corners of the upper cover of the reducer, the lower housing of the reducer and the upper cover of the reducer are fixedly connected by a bolt, the bottom end of the bolt passes through the positioning hole and is threadedly connected to the inside of the positioning screw hole, and a limiting bracket is fixedly connected to the four corners of the lower housing of the reducer facing the ground, and the limiting bracket is arranged below the positioning screw hole.

[0015] By adopting the above technical solution, when connecting and fixing the reducer lower housing and the reducer upper cover, bolt one can be passed through positioning hole one and screwed into positioning screw hole one, and bolt one can be screwed until the bottom end of bolt one contacts the limiting bracket one. In this way, not only the connection between the reducer lower housing and the reducer upper cover can be completed, but also due to the obstruction of the limiting bracket one, it can be ensured that the sealing gasket will not be excessively squeezed during the connection.

[0016] The present invention is further configured as follows: a positioning screw hole 2 is provided between two adjacent positioning screw holes 1 on the lower housing of the reducer, a positioning hole 2 is provided between two adjacent positioning holes 1 on the upper cover of the reducer, a bolt 2 is inserted into the inside of the positioning hole 2, and the bottom end of the bolt 2 is threadedly connected to the inside of the positioning screw hole 2, and a limiting bracket 2 is fixedly connected to the lower housing of the reducer, and the limiting bracket 2 is below the positioning screw hole 2.

[0017] By adopting the above technical solution, when connecting the reducer lower housing and the reducer upper cover, after the bolt one is fixed, the staff can turn the bolt two to fit the lower surface of the bolt two head with the reducer upper cover, and the reducer lower housing and the reducer upper cover can be reinforced again to ensure the stability of the connection. When the sealing gasket is aged and leaking oil, and it is not convenient to replace the sealing gasket at this time, the staff can continue to turn the bolt two. Under the action of the bolt two, the reducer upper cover can be driven to continue to move downward, squeezing the sealing gasket until the bottom end of the bolt two contacts the limit bracket two. Then, due to the pressure applied to the sealing gasket again, the sealing gasket can be deformed and fit more tightly with the sealing groove, thereby achieving the purpose of temporary oil leakage prevention and can be temporarily used by the staff. After use, it is necessary to stop the machine in time for replacement.

[0018] The present invention is further configured as follows: an air valve assembly is installed on the upper cover of the reducer, the air valve assembly includes a mounting base installed on the upper cover of the reducer, a baffle is installed inside the mounting base, a cover plate is fixedly connected to the mounting base, a valve stem is inserted into the inside of the cover plate, the top end of the valve stem is fixedly connected to an air cap, the outer surface of the valve stem is fixedly connected to a baffle, and the cover plate and the air cap are connected by spring 2.

[0019] By adopting the above technical solution and setting the air valve assembly, when the pressure inside the reducer is too high, the gas will push the cover to move upward, causing the spring to deform and stretch upward, which can drive the air cap to move upward, and the gas can be discharged through the air hole, which can avoid excessive pressure inside the reducer and cause oil leakage, and the baffle can block the lubricating oil to prevent the oil from flying out. When there is a lot of oil sludge on the baffle, causing blockage, the staff can separate the cover from the mounting seat and directly remove the baffle from the inside of the mounting seat, which is convenient for cleaning the baffle.

[0020] The beneficial effect of the present invention is that when oil leakage occurs in the seal at the rotating shaft, the leaked oil can enter the oil guide housing, and under the action of gravity, it will gather at the bottom of the oil guide housing and be discharged into the oil collecting pipe through the oil outlet pipe. The staff can visually see whether there is oil leakage at the reducer rotating shaft by observing the pumped liquid reserve inside the oil collecting pipe, and the protection of the oil guide housing can effectively prevent the leaked oil from being thrown into the air. The collection of lubricating oil can enable the staff to discover oil leakage more promptly and deal with the oil leakage problem in advance. If the staff is too busy to observe the oil collecting pipe in time, as the oil inside the oil collecting pipe increases, pressure can be applied downward to spring one to move the oil collecting pipe downward. When spring one applies pressure to the button switch, the button switch can control the buzzer to sound, which can prompt the staff, so that the staff can stop the machine in time for processing, thereby ensuring the stable and safe operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the axonometric structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the rear axonometric structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the cross-section axonometric structure of the present invention;

[0024] Figure 4 For the present invention Figure 1 A in the middle is an enlarged structural diagram;

[0025] Figure 5 Schematic diagram of the cross-section axonometric structure of the oil guide housing of the present invention;

[0026] Figure 6 For the present invention Figure 5 The enlarged structural diagram at D in the middle;

[0027] Figure 7 For the present invention Figure 2 The enlarged structural diagram at B in the middle;

[0028] Figure 8 Schematic diagram of the cross-sectional structure of the gas valve assembly in the present invention;

[0029] Figure 9 For the present invention Figure 2 Enlarged structural diagram at point C in the middle.

[0030] In the figure: 1. Reducer lower housing; 2. Reducer upper cover; 3. Oil guide housing; 4. Oil outlet pipe; 5. Oil collecting pipe; 6. Top column; 7. Bracket; 8. Spring 1; 9. Mounting bracket; 10. Push button switch; 11. Buzzer; 12. Positioning column; 13. Slide; 14. Limit block; 15. Sealing groove; 16. Sealing gasket; 17. Positioning screw hole 1; 18. Positioning hole 1; 19. Bolt 1; 20. Limit bracket 1; 21. Positioning screw hole 2; 22. Positioning hole 2; 23. Bolt 2; 24. Limit bracket 2; 25. Mounting seat; 26. Baffle; 27. Cover plate; 28. Valve stem; 29. ​​Gas cap; 30. Baffle cover; 31. Spring 2; 32. Sealing cover. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further explained below with reference to specific illustrations.

[0032] Example 1

[0033] like Figure 1 、 Figure 4 and Figure 5 As shown, an integrated anti-oil seepage device for a reducer includes a reducer lower housing 1 and a reducer upper cover 2 for sealing the reducer lower housing 1. The outer surface of the reducer lower housing 1 is fixedly connected to an oil guide shell 3, and the outer surface of the oil guide shell 3 is fixedly connected to a sealing cover 32. A rotating shaft is inserted into the interior of the sealing cover 32, and a sealing ring is provided between the sealing cover 32 and the rotating shaft to prevent the lubricating oil from entering the oil guide shell 3 and flowing out from the interior of the oil guide shell 3. The bottom end of the oil guide shell 3 is fixedly connected to an oil outlet pipe 4, and the oil outlet pipe 4 is inserted into the interior of the oil collecting pipe 5, so that the oil inside the oil guide shell 3 can be directly dripped into the interior of the oil collecting pipe 5 to avoid loss of oil. The bottom end of the oil collecting pipe 5 is fixedly connected to a top column 6, and a bracket 7 is fixedly connected to the bottom of the oil guide shell 3 on the reducer lower housing 1, and a spring 8 is provided between the inner bottom wall of the bracket 7 and the bottom end of the oil collecting pipe 5.

[0034] The bottom end of the bracket 7 is fixedly connected to a mounting bracket 9, and the inner bottom wall of the mounting bracket 9 is fixedly connected to a button switch 10. The button switch 10 includes a button cap, a return spring, a moving contact, a static contact, a shell and a terminal. When no pressure is applied to the button switch 10, the return spring pulls the moving contact away from the static contact, the circuit is in an open circuit state, and no current flows through. When pressure is applied to the button switch 10, the button cap is pressed to overcome the spring resistance and push the moving contact toward the static contact. The moving contact contacts the static contact to form a conductive path, and the buzzer 11 emits a sound for prompting, and the staff can choose two buzzers 11 with different sounds. The buzzers 11 with different sounds are installed at the input shaft and the output shaft. When the buzzer 11 sounds, the staff can directly judge the oil leakage at the input shaft and the output shaft according to the sound of the buzzer 11, and electrically connect to the buzzer 11 through a wire.

[0035] like Figure 4 As shown, a positioning column 12 is fixedly connected to the oil guide housing 3, and the positioning column 12 is inserted into the interior of the sealing cover 32 and fixed by a locking nut.

[0036] like Figure 5 and Figure 6 As shown, a slide groove 13 is provided inside the bracket 7, a limit block 14 is fixedly connected to the outer surface of the oil collecting pipe 5, and the limit block 14 is slidably connected to the inside of the slide groove 13. A through hole is provided on the inner bottom wall of the bracket 7, the top column 6 is inserted into the inside of the through hole, and the spring 8 is sleeved on the outer surface of the top column 6.

[0037] like Figure 3 As shown, the opposite surfaces of the reducer lower housing 1 and the reducer upper cover 2 are provided with sealing grooves 15, and the interior of the sealing groove 15 is clamped with the sealing gasket 16. When installing the sealing gasket 16, the sealing gasket 16 can be first installed inside the sealing groove 15 of the reducer upper cover 2, and then the reducer upper cover 2 is covered on the reducer lower housing 1, and the sealing gasket 16 can be pressed into the interior of the reducer upper cover 2 to achieve sealing of the sealing groove 15.

[0038] like Figure 2 and Figure 7As shown, the four corners of the reducer lower housing 1 are provided with positioning screw holes 17, and the four corners of the reducer upper cover 2 are provided with positioning holes 18. The reducer lower housing 1 and the reducer upper cover 2 are fixedly connected by bolts 19. The bottom end of the bolt 19 passes through the positioning hole 18 and is threadedly connected to the inside of the positioning screw hole 17. The four corners of the reducer lower housing 1 facing the ground are fixedly connected with limit brackets 20. The limit brackets 20 are set below the positioning screw holes 17. A second positioning screw hole 21 is provided between two adjacent positioning screw holes 17 on the shell 1, and a second positioning hole 22 is provided between two adjacent positioning holes 18 on the reducer upper cover 2. A second bolt 23 is inserted into the interior of the second positioning hole 22, and the bottom end of the second bolt 23 is threadedly connected to the interior of the second positioning screw hole 21. A second limiting bracket 24 is fixedly connected to the lower shell 1 of the reducer. The second limiting bracket 24 is below the second positioning screw hole 21, and the position of the second limiting bracket 24 is lower than the first limiting bracket 20.

[0039] like Figure 2 、 Figure 8 and Figure 9 As shown, an air valve assembly is installed on the reducer cover 2, and the air valve assembly includes a mounting base 25 mounted on the reducer cover 2, a baffle 26 is installed inside the mounting base 25, a cover plate 27 is fixedly connected to the mounting base 25, the cover plate 27 is provided with an air hole, and a limiting groove is provided on the inner wall of the air hole, a valve stem 28 is inserted into the cover plate 27, and a limiting protrusion is fixedly connected to the outer surface of the valve stem 28, and the limiting protrusion is slidably connected to the inside of the limiting groove, which can limit the valve stem 28 so that the valve stem 28 is not easily displaced when moving up and down. An air cap 29 is fixedly connected to the top of the valve stem 28, and a baffle 30 is fixedly connected to the outer surface of the valve stem 28. The cover plate 27 and the air cap 29 are connected by a spring 231.

[0040] When oil leakage occurs in the seal at the rotating shaft, the leaked oil can enter the oil guide housing 3 and, under the action of gravity, gather at the bottom of the oil guide housing 3 and be discharged into the oil collecting pipe 5 through the oil outlet pipe 4. The staff can visually see whether there is oil leakage at the reducer rotating shaft by observing the pumped liquid reserve inside the oil collecting pipe 5. The protection of the oil guide housing 3 can effectively prevent the leaked oil from being thrown into the air. The collection of lubricating oil can enable the staff to discover oil leakage more promptly and deal with the oil leakage problem in advance. If the staff is too busy to observe the oil collecting pipe 5 in time, as the oil in the oil collecting pipe 5 increases, pressure can be applied downward to the spring 18 to make the oil collecting pipe 5 move downward. When the spring 18 applies pressure to the button switch 10, the button switch 10 can control the buzzer 11 to sound, which can remind the staff and facilitate the staff to stop the machine in time for processing, thereby ensuring the stable and safe operation of the equipment.

[0041] When the oil in the oil collecting pipe 5 needs to be poured out, the staff can first release the fixation of the bracket 7, then separate the oil collecting pipe 5 from the oil outlet pipe 4, and then hold the bracket 7 and turn the oil collecting pipe 5 upside down to pour out the oil in the oil collecting pipe 5.

[0042] The sealing cover 32 is detachably connected to the oil guide housing 3. The staff can open the sealing cover 32 to observe whether there is oil attached to the inner wall of the oil guide housing 3. When the inner wall of the oil guide housing 3 needs to be cleaned, the staff can open the sealing cover 32 to clean the oil guide housing 3 more conveniently.

[0043] The dual limiting effects of the chute 13 and the limiting block 14 and the through hole and the top column 6 can prevent the oil collecting pipe 5 from being easily displaced when it moves up and down, and improve stability.

[0044] Installing the sealing gasket 16 inside the sealing groove 15 can make the seal between the reducer lower housing 1 and the reducer upper cover 2 tighter, and prevent the lubricating oil from leaking from the connection between the reducer lower housing 1 and the reducer upper cover 2.

[0045] When connecting and fixing the reducer lower housing 1 and the reducer upper cover 2, a bolt 19 can be passed through the positioning hole 18 and screwed into the positioning screw hole 17. The bolt 19 is screwed until the bottom end of the bolt 19 contacts the limiting bracket 20. This not only completes the connection between the reducer lower housing 1 and the reducer upper cover 2, but also ensures that the sealing gasket 16 will not be excessively squeezed during the connection due to the obstruction of the limiting bracket 20.

[0046] When the reducer lower housing 1 and the reducer upper cover 2 are connected, after the bolt 19 is fixed, the staff can tighten the bolt 23 to fit the lower surface of the head of the bolt 23 with the reducer upper cover 2, and the reducer lower housing 1 and the reducer upper cover 2 can be reinforced again to ensure the stability of the connection. When the sealing gasket 16 ages and leaks oil, and it is inconvenient to replace the sealing gasket 16 at this time, the staff can continue to tighten the bolt 23. Under the action of the bolt 23, the reducer upper cover 2 can be driven to continue to move downward, squeezing the sealing gasket 16 until the bottom end of the bolt 23 contacts the limit bracket 24. Due to the pressure applied to the sealing gasket 16 again, the sealing gasket 16 can be deformed and fit more tightly with the sealing groove 15, thereby achieving the purpose of temporary oil prevention and can be used temporarily by the staff. After use, it is necessary to stop the machine in time for replacement.

[0047] The setting of the air valve assembly is that when the pressure inside the reducer is too high, the gas will push the cover 30 to move upward, causing the spring 2 31 to deform and stretch upward, which can drive the air cap 29 to move upward, and the gas can be discharged through the air hole, which can avoid excessive pressure inside the reducer and cause oil leakage, and the baffle 26 can block the lubricating oil to prevent the oil from flying out. When the baffle 26 has a lot of oil sludge and causes blockage, the staff can separate the cover 27 from the mounting seat 25, and can directly remove the baffle 26 from the inside of the mounting seat 25, which is convenient for cleaning the baffle 26.

[0048] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments and that various modifications and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such modifications and improvements are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A speed reducer oil leakage prevention integrated device, comprising a speed reducer lower housing (1) and a speed reducer upper cover (2) for sealing the speed reducer lower housing (1), characterized in that: The outer surface of the reducer lower housing (1) is fixedly connected to an oil guide housing (3), the outer surface of the oil guide housing (3) is fixedly connected to a sealing cover (32), the bottom end of the oil guide housing (3) is fixedly connected to an oil outlet pipe (4), the oil outlet pipe (4) is plugged into the inside of the oil collecting pipe (5), the bottom end of the oil collecting pipe (5) is fixedly connected to a top column (6), the lower part of the oil guide housing (3) on the reducer lower housing (1) is fixedly connected to a bracket (7), a spring (8) is provided between the inner bottom wall of the bracket (7) and the bottom end of the oil collecting pipe (5), the bottom end of the bracket (7) is fixedly connected to a mounting frame (9), the inner bottom wall of the mounting frame (9) is fixedly connected to a button switch (10), and the button switch (10) is electrically connected to a buzzer (11) through a wire; A slide groove (13) is provided inside the bracket (7), a limit block (14) is fixedly connected to the outer surface of the oil collecting pipe (5), and the limit block (14) is slidably connected to the inside of the slide groove (13). A through hole is provided on the inner bottom wall of the bracket (7), the top column (6) is inserted into the inside of the through hole, and the spring (8) is sleeved on the outer surface of the top column (6).

2. The integrated device for preventing oil leakage of a reducer according to claim 1, characterized in that: A rotating shaft is inserted into the interior of the sealing cover (32), and a sealing ring is provided between the sealing cover (32) and the rotating shaft.

3. The integrated device for preventing oil leakage of a reducer according to claim 1, characterized in that: A positioning column (12) is fixedly connected to the oil guide housing (3), and the positioning column (12) is inserted into the interior of the sealing cover (32) and fixed by a locking nut.

4. The integrated device for preventing oil leakage of a reducer according to claim 1, characterized in that: The opposite surfaces of the reducer lower housing (1) and the reducer upper cover (2) are both provided with sealing grooves (15), and the interior of the sealing grooves (15) is clamped with a sealing gasket (16).

5. The integrated device for preventing oil leakage of a reducer according to claim 1, characterized in that: The four corners of the reducer lower housing (1) are each provided with a positioning screw hole (17), and the four corners of the reducer upper cover (2) are each provided with a positioning hole (18). The reducer lower housing (1) and the reducer upper cover (2) are fixedly connected by a bolt (19), and the bottom end of the bolt (19) passes through the positioning hole (18) and is threadedly connected to the inside of the positioning screw hole (17).

6. The integrated device for preventing oil leakage of a reducer according to claim 5, characterized in that: The four corners of the reducer lower housing (1) facing the ground are fixedly connected to a limiting bracket (20), and the limiting bracket (20) is arranged below the positioning screw hole (17).

7. The integrated device for preventing oil leakage of a reducer according to claim 5, characterized in that: A second positioning screw hole (21) is provided between two adjacent positioning screw holes (17) on the reducer lower housing (1), and a second positioning hole (22) is provided between two adjacent positioning holes (18) on the reducer upper cover (2). A second bolt (23) is inserted into the interior of the second positioning hole (22), and the bottom end of the second bolt (23) is threadedly connected to the interior of the second positioning screw hole (21). A second limiting bracket (24) is fixedly connected to the reducer lower housing (1), and the second limiting bracket (24) is below the second positioning screw hole (21).

8. The integrated device for preventing oil leakage of a reducer according to claim 1, characterized in that: An air valve assembly is mounted on the reducer upper cover (2), and the air valve assembly comprises a mounting seat (25) mounted on the reducer upper cover (2), a retaining net (26) is mounted inside the mounting seat (25), and a cover plate (27) is fixedly connected to the mounting seat (25).

9. The integrated device for preventing oil leakage of a reducer according to claim 8, characterized in that: A valve stem (28) is inserted into the interior of the cover plate (27), a gas cap (29) is fixedly connected to the top end of the valve stem (28), a retaining cover (30) is fixedly connected to the outer surface of the valve stem (28), and the cover plate (27) and the gas cap (29) are connected via a second spring (31).

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