CN-122008109-A - Speed reducer oil seal replacement tool

Abstract

The invention provides a speed reducer oil seal replacing tool, which relates to the oil seal replacing tool technology, and particularly discloses a loading shell, wherein a mounting cavity is formed in the loading shell and is used for sleeving a rotating shaft for accommodating a speed reducer, a mounting seat is arranged on the outer side wall of the loading shell, a sealing cover is arranged on one side of the loading shell, an inlet and outlet hole coaxial with a circle where the loading shell is arranged is formed in the side wall of the sealing cover, a shaft rod penetrates through the inlet and outlet hole, a fixing structure connected with the shaft rod is arranged in the mounting cavity and is detachably connected with the rotating shaft of the speed reducer, a part of the rotating shaft of the speed reducer is embedded in the fixing structure, a positioning structure is arranged on the outer side wall of the mounting seat and is in transmission connection with the positioning structure, a clamping structure for fixing an oil seal is arranged on the shaft rod, and the tool is positioned and locked from multiple directions through double positioning of the positioning structure, so that the shaft rod and the rotating shaft rod are always coaxial with the rotating shaft, and deflection and inclination of the oil seal during installation are effectively avoided.

Inventors

• ZHAO SHUAI
• YANG HAO
• YU SONGHAO
• SHI PENGFEI
• LIU CHI
• CHEN YE
• LIU HONGWEI
• LIU XIANGSEN
• ZHANG LEI

Assignees

• 华能阜新风力发电有限责任公司

Dates

Publication Date

20260512

Application Date

20260318

Claims (10)

1. 1. The speed reducer oil seal replacement tool is characterized by comprising a loading shell, wherein a mounting cavity is formed in the loading shell and is used for sleeving and accommodating a rotating shaft of a speed reducer, and a mounting seat is arranged on the outer side wall of the loading shell; One side of the loading shell is provided with a sealing cover, the side wall of the sealing cover is provided with an inlet and outlet hole coaxial with the circle where the loading shell is positioned, and a shaft lever is arranged in the inlet and outlet hole in a penetrating manner; A fixed structure connected with the shaft lever is arranged in the mounting cavity, the fixed structure is detachably connected with the speed reducer rotating shaft, and part of the speed reducer rotating shaft is embedded in the fixed structure; the outer side wall of the mounting seat is provided with a positioning structure which is detachably connected with the speed reducer shell, and the shaft lever is in transmission connection with the positioning structure; the shaft lever is provided with a clamping structure for fixing the oil seal; the fixing structure is positioned in an annular area formed by the clamping structure, and the sealing cover is provided with a driving structure for driving the shaft rod to reciprocate.
2. 2. The speed reducer oil seal replacement tool according to claim 1, wherein the positioning structure comprises a plurality of positioning shafts, the plurality of positioning shafts are arranged on the outer side wall of the mounting seat in a winding mode, the free ends of the positioning shafts are embedded in shaft holes in the speed reducer shell, mounting grooves are formed in the free ends of the positioning shafts, limiting structures which are in butt joint with the inner walls of the shaft holes are arranged in the mounting grooves, and the limiting structures are in transmission connection with the shaft rods.
3. 3. The speed reducer oil seal replacement tool according to claim 2, wherein the limiting structure comprises an air bag structure installed in the installation groove, limiting seats are arranged on two sides of the installation groove in a sliding mode, a part of the air bag structure is embedded between the two limiting seats, an installation channel is arranged in the positioning shaft, a connecting rod is arranged in the installation channel in a sliding mode, a pressing plate in contact with the air bag structure is arranged on the connecting rod, a slide way is arranged on the outer side wall of the positioning shaft, a connecting frame connected with the connecting rod is arranged in the slide way in a sliding mode, a displacement sleeve in threaded connection with the connecting frame is arranged on the outer side wall of the shaft rod, the connecting frame is connected with the displacement sleeve in a rotating mode, a limiting groove is formed in the outer side wall of the sealing cover in the vertical direction, an arc-shaped groove connected with the limiting groove is formed in a surrounding mode on the outer side wall of the sealing cover, and the part of the limiting block is embedded in the limiting groove.
4. 4. The speed reducer oil seal replacement tool according to claim 2 or3, wherein a plurality of guide grooves are obliquely arranged on the outer side wall of the mounting seat, the plurality of guide grooves are circumferentially arranged on the outer side of the mounting groove, the sliding seat is slidably arranged in the guide grooves, the shaft rod extends outwards after penetrating through the sliding seat, and a locking structure for locking the sliding seat on the mounting seat is arranged on the positioning shaft.
5. 5. The speed reducer oil seal replacement tool according to claim 4, wherein the locking structure comprises a displacement seat sleeved on the outer side wall of the positioning shaft, a blocking spring connected with the displacement seat is sleeved on the outer side wall of the positioning shaft, a locking rod is mounted on the displacement seat, and the locking rod penetrates through the sliding seat and is embedded in the mounting seat.
6. 6. The speed reducer oil seal replacement tool according to claim 1, wherein the fixing structure comprises a mounting shaft which is slidably arranged in the mounting cavity, an inlet and outlet passage is formed in the end face of the mounting shaft, and a part of the shaft rod is embedded in the inlet and outlet passage; The installation shaft comprises an installation shaft, wherein an installation plate coaxial with the installation shaft is installed on the outer side wall of the installation shaft, a plurality of installation holes are formed in the outer cambered surface of the installation plate along the radial direction of the installation plate, guide rods are slidably arranged in the installation holes, a fixed plate is installed at the extending end of each guide rod, the plurality of fixed plates are annular after encircling, a reset spring connected with each guide rod is installed in each installation hole, and first magnetic pole pieces are embedded in the fixed plates.
7. 7. The speed reducer oil seal replacement tool according to claim 1, wherein the clamping structure comprises a plurality of lower pressing frames which are arranged on the outer side wall of the shaft rod in a surrounding mode, a pressing seat fixedly connected with the end portion of the lower pressing frames is arranged in the installation cavity in a sliding mode, a protection ring is arranged on the pressing seat, and a second magnetic pole piece is embedded in the pressing seat.
8. 8. The speed reducer oil seal replacement tool according to claim 7, further comprising a sinking groove formed in the protection ring, wherein a blind hole communicated with the sinking groove is formed in the protection ring, a guide rod is slidably arranged in the blind hole, a limit spring connected with the inner wall of the blind hole is sleeved on the guide rod, an arc-shaped plate is mounted on the extending end of the guide rod, the arc-shaped plates are annular after being enclosed, and the axis of a circle where the arc-shaped plate is located is coaxial with the axis of the shaft rod.
9. 9. The speed reducer oil seal replacement tool according to claim 1, wherein the driving structure comprises an internal thread formed on the inner wall of the mounting hole, and an external thread meshed with the internal thread is formed on the outer side wall of the shaft rod.
10. 10. The speed reducer oil seal replacement tool of claim 9, wherein a rotary handle is mounted on the side of the shaft rod away from the mounting seat.

Description

Speed reducer oil seal replacement tool Technical Field The invention relates to the technical field of oil seal replacement tools, in particular to a speed reducer oil seal replacement tool. Background In the long-term operation process of the speed reducer, the oil seal can lose sealing performance due to factors such as abrasion, aging and deformation, and the oil seal needs to be replaced in time at the moment so as to ensure the normal operation of the speed reducer. At present, the replacement operation of the speed reducer oil seal mainly depends on the traditional manual operation or the simple tool assistance, the overall operation efficiency is low, the operation difficulty is high, and a plurality of technical defects to be solved urgently exist. In the prior art, when the oil seal is manually replaced, operators need to disassemble the speed reducer by means of simple tools such as a wrench and a screwdriver, then pick the old oil seal out of the rotating shaft manually, and then aim the new oil seal at the installation position of the rotating shaft, and the oil seal is installed in place by means of manual knocking or pressing. The operation mode is high in labor intensity, coaxiality of the oil seal and the rotating shaft is difficult to ensure in the operation process, the oil seal is easy to incline and deviate, oil leakage is caused after installation, meanwhile, the lip of the oil seal is easy to scratch and deform due to manual knocking or pressing, the oil seal structure is damaged, the sealing performance and the service life of the oil seal are reduced, and even the oil seal is required to be replaced for many times to finish operation, so that the operation cost and the operation time are further increased. In order to solve the defects of manual operation, a few simple speed reducer oil seal replacement tools appear on the market, but the tools generally have the problems of unreasonable structural design, single function and the like, and cannot meet the actual operation demands. The existing simple tool lacks a reliable positioning structure, is difficult to realize accurate positioning of the tool, a speed reducer shell and a rotating shaft, and is easy to deviate after being installed, so that the oil seal installation position deviation is caused, and the sealing effect is affected. Disclosure of Invention The invention aims to provide a speed reducer oil seal replacement tool, which can solve the problems of the background art. The technical scheme of the invention is realized as follows: The invention provides a speed reducer oil seal replacement tool, which comprises a loading shell, wherein a mounting cavity is formed in the loading shell and is used for sleeving a rotating shaft for accommodating a speed reducer, and a mounting seat is arranged on the outer side wall of the loading shell; One side of the loading shell is provided with a sealing cover, the side wall of the sealing cover is provided with an inlet and outlet hole coaxial with the circle where the loading shell is positioned, and a shaft lever is arranged in the inlet and outlet hole in a penetrating way; a fixed structure connected with the shaft lever is arranged in the mounting cavity and is detachably connected with the speed reducer rotating shaft, and part of the speed reducer rotating shaft is embedded in the fixed structure; the outer side wall of the mounting seat is provided with a positioning structure which is detachably connected with the speed reducer shell, and the shaft lever is in transmission connection with the positioning structure; The shaft lever is provided with a clamping structure for fixing the oil seal, the fixing structure is positioned in an annular area formed by the clamping structure, and the sealing cover is provided with a driving structure for driving the shaft lever to reciprocate. In some technical schemes of the invention, the positioning structure comprises a plurality of positioning shafts, the positioning shafts are circumferentially arranged on the outer side wall of the mounting seat, the free ends of the positioning shafts are embedded in shaft holes on the reducer shell, mounting grooves are formed in the free ends of the positioning shafts, limiting structures which are in butt joint with the inner walls of the shaft holes are arranged in the mounting grooves, and the limiting structures are in transmission connection with the shaft rods. In some technical schemes of the invention, the limit structure comprises an air bag structure arranged in a mounting groove, both sides of the mounting groove are respectively provided with a limit seat in a sliding manner, part of the air bag structure is embedded between the two limit seats, a mounting channel is arranged in a positioning shaft, a connecting rod is arranged in the mounting channel in a sliding manner, a pressing plate in contact with the air bag structure is arranged on the connecting rod, a slideway is arrange