Disassembly auxiliary device for maintenance of vacuum pump

Abstract

The utility model discloses a dismounting auxiliary device for maintenance of a vacuum pump, and relates to the technical field of maintenance of vacuum pumps. The device comprises a workbench, a rotating assembly is arranged in the center of the top of the workbench, and an auxiliary assembly is further arranged at the top of the workbench; the rotating assembly comprises moving plates movably connected to the two sides of the center position of the top of the workbench through two-way lead screws correspondingly, and the upper surfaces of the moving plates are fixedly connected with a mounting frame. The lifting block is driven by the hydraulic cylinder to ascend and descend, the second L-shaped frame and the placing plate are driven by the lifting block to ascend and descend, so that the placing height of the vacuum pump is adjusted, the problem that the placing height of the vacuum pump is inconvenient to adjust in the prior art is solved, the illuminating lamp is driven by the mounting column and the one-way lead screw to move, and the working efficiency is improved. And an illuminating lamp is driven to ascend and descend through a sleeve rod and a threaded rod, the interior of the vacuum pump is illuminated through the illuminating lamp, and the problem that in the prior art, auxiliary illumination is inconvenient to conduct on the interior of the vacuum pump is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vacuum pump maintenance technical field especially relates to a kind of dismounting auxiliary device for vacuum pump maintenance. BACKGROUND

[0002] Vacuum pump is a kind of common power equipment for conveying object, with the characteristics of high pressure, low noise, excellent performance, wide application, applicable to a variety of occasions, and in the maintenance process of vacuum pump, to facilitate its disassembly, generally will use dismounting auxiliary device;

[0003] The document with the existing announcement No.CN220719258U discloses a kind of for Roots vacuum pump's rotation auxiliary maintenance device, including support frame body and drive assembly, the support frame body can be rotatably arranged for installing Roots vacuum pump's placement platform, the drive assembly is arranged on the support frame body, for driving the placement platform rotates on support frame body, the placement platform includes first connecting plate, second connecting plate and support plate, the first connecting plate and second connecting plate are vertically arranged on support plate in mirror image symmetry, the first connecting plate and second connecting plate are provided with connecting shaft, the support frame body is mirror image symmetry and is provided with two bearing supports, the connecting shaft is rotatably installed on bearing support;

[0004] But it still has the following disadvantages in actual use:

[0005] 1, the rotation auxiliary maintenance device in the above, by first connecting plate, second connecting plate and support plate to be placed installation to vacuum pump, and by connecting shaft to drive vacuum pump to rotate, to realize the auxiliary vacuum pump to be disassembled and repaired, but in the use process, the height of its first connecting plate, second connecting plate and support plate is fixed, not convenient to adjust the height of vacuum pump according to the demand of maintenance personnel, practical performance is poor;

[0006] 2, the rotation auxiliary maintenance device in the above, by support frame body to install placement platform, and by drive assembly to drive placement platform and vacuum pump to rotate, but in actual maintenance process, since the light in vacuum pump is dark, and the auxiliary maintenance device in the above lacks auxiliary lighting structure, so it is inconvenient to disassemble and repair the inside of vacuum pump.

[0007] Therefore, we provide a kind of dismounting auxiliary device for vacuum pump maintenance to solve the problems in the above. UTILITY MODEL CONTENTS

[0008] The utility model discloses a vacuum pump maintenance's dismounting auxiliary device, lift the block is driven to go up and down through the hydraulic cylinder, and the second L type frame and the placing plate are driven to go up and down through the lift block, thereby the placing height of vacuum pump is adjusted, the placing height of vacuum pump is not convenient for adjusting of the prior art is solved, and through the installation column and the unidirectional screw rod drive lighting lamp moves, and the lighting lamp is driven to go up and down through the sleeve rod and the threaded rod, thereby the inside of vacuum pump is illuminated through the lighting lamp, the inside of vacuum pump is not convenient for auxiliary illumination of the prior art is solved.

[0009] To solve the above technical problem, the utility model is through following technical scheme realizes:

[0010] The utility model discloses a vacuum pump maintenance's dismounting auxiliary device, including work table, the top center position of work table is provided with rotating component, and the top of work table still is provided with auxiliary component,

[0011] Rotating component includes the moving plate of two -sided movable connection in the top center position of work table through two -way screw rod, and the upper surface fixed connection of moving plate has installation frame, and the inside movable connection of installation frame has lift block, and the top fixed connection of installation frame has hydraulic cylinder, and the output shaft fixed connection of hydraulic cylinder is at the top of lift block, and the outer wall of lift block is rotatably penetrated with rotating shaft, and one end fixed connection of rotating shaft has the second L type frame, and the transverse branch of second L type frame fixed connection has the placing plate for installing vacuum pump on,

[0012] Auxiliary component includes the installation column of movable connection in the top rear end of work table through unidirectional screw rod, and the outer wall of installation column is sleeved with antiskid sleeve, and the inside rotatable connection of installation column has sleeve rod, and the inside threaded sleeve of sleeve rod has threaded rod, and the section of threaded rod is rotatably sleeved with mounting arm on the outside upper side of installation column, and the bottom movable connection of mounting arm has H type frame along its length direction, and the inside both sides movable connection of H type frame has movable plate, and the rotatable connection of movable plate has lighting lamp on the outer wall of one side of H type frame outside.

[0013] The utility model further provides for: two -way screw rod rotatable connection is in the inside slide groove of top center position of work table, and the both ends of two -way screw rod extend to the both sides of work table and are fixedly connected with first hand wheel, and the outer wall both sides of two -way screw rod are threadedly sleeved with first sliding block, and the top fixed connection of first sliding block is in the lower surface center position of moving plate.

[0014] The utility model further provides for: the inside slide groove of top front and rear end of work table is fixedly connected with first sliding rod, and the outer wall both sides of first sliding rod are slidably sleeved with second sliding block, and the top of second sliding block is fixedly connected in the lower surface front and rear end of moving plate.

[0015] The utility model discloses further provide as: the upper surface front and back end of mobile board all are fixedly connected with tripod, and the vertical support arm of tripod is fixedly connected on the front and back end surface of mounting frame respectively.

[0016] The utility model discloses further provide as: the inside front and back end of mounting frame all are fixedly connected with second slide rod along vertical, and the front and back end of lifting block all are movably covered and are established on the outer wall of second slide rod.

[0017] The utility model discloses further provide as: the one side outer wall of lifting block is fixedly connected with first L type frame, and the transverse support arm of first L type frame is fixedly connected with drive motor through motor frame, and the output shaft rotation of drive motor penetrates the transverse support arm of first L type frame and is covered with second bevel gear, and the one side fixedly connected with mounting seat of first L type frame transverse support arm away from vertical support arm, and the outer wall of rotating shaft is covered with first bevel gear, and first bevel gear is engaged below second bevel gear, and the one end rotation of rotating shaft away from second L type frame penetrates mounting seat and is fixedly connected with limit disc, and the outer wall below of limit disc is screwed and is penetrated with the locating rod, and the one end of locating rod is fixedly connected with screw cap, and the other end of locating rod is screwed and is connected in the inside of the locating hole of mounting seat outer wall.

[0018] The utility model discloses further provide as: the vertical support arm of second L type frame is fixedly connected with a plurality of first connecting rods, and the one end of first connecting rod away from second L type frame is movably connected in the inside of the circular groove on the other side outer wall of lifting block.

[0019] The utility model discloses further provide as: one way screw rod is connected on the rear end surface of work table along transverse rotation, and the both ends of one way screw rod all are fixedly connected with second hand wheel, and the outer wall center position of one way screw rod is screwed and is covered with third sliding block, and the top of third sliding block is fixedly connected with third L type frame, and the vertical support arm of third L type frame is fixedly connected below the rear end surface of mounting column.

[0020] The utility model discloses further provide as: the rear end surface of mounting column is fixedly connected with ear seat above, and the top of threaded rod is fixedly connected with top plate, and the lower surface rear end of top plate is fixedly connected with limit rod, and the bottom of limit rod is movably penetrated ear seat and is fixedly connected with limit board.

[0021] The utility model discloses further provide as: the inside of mounting arm is fixedly connected with third slide rod along longitudinal, and the outer wall of third slide rod is slidably covered with fourth sliding block, and the bottom of fourth sliding block is fixedly connected in the top of H type frame, and the both sides outer wall of U type frame all are movably penetrated with second connecting rod, and the one end of second connecting rod on the outside of H type frame is fixedly connected on movable board.

[0022] The utility model discloses further provide as: the inside of mounting arm is fixedly connected with third slide rod along longitudinal, and the outer wall of third slide rod is slidably covered with fourth sliding block, and the bottom of fourth sliding block is fixedly connected in the top of H type frame, and the both sides outer wall of U type frame all are movably penetrated with second connecting rod, and the one end of second connecting rod on the outside of H type frame is fixedly connected on movable board.

[0023] 1. The utility model discloses a rotating assembly is set up, install vacuum pump on the placing plate, and start hydraulic cylinder, and the output shaft of hydraulic cylinder drives the lifting piece to go up and down, thereby through the lifting piece drives the placing plate and vacuum pump to go up and down, realizes the placing height of vacuum pump is adjusted, and the placing height of vacuum pump is adjusted conveniently, and the vacuum pump is disassembled and maintained conveniently.

[0024] 2. The utility model discloses through setting up auxiliary assembly, rotates second hand wheel, and second hand wheel drives unidirectional screw rod to rotate, and unidirectional screw rod passes through third sliding block and drives mounting column and illuminating lamp to move on the transverse, and rotates sleeve rod, and sleeve rod passes through threaded rod and drives mounting arm to go up and down, realized the height of illuminating lamp is adjusted, finally through H type frame and movable plate to illuminating lamp's position and angle are further adjusted, and through illuminating lamp to the inside of vacuum pump is illuminated, thereby the inside of vacuum pump is disassembled and maintained conveniently. DRAWINGS

[0025] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduces.

[0026] Figure 1 It is the whole structure schematic diagram of the utility model.

[0027] Figure 2 It is the structure schematic diagram of the rotating assembly of the utility model.

[0028] Figure 3 It is the installation schematic diagram of movable plate, bidirectional screw rod and mounting frame of the utility model.

[0029] Figure 4 It is the structure disassembly drawing of lifting piece.

[0030] Figure 5 It is the structure schematic diagram of auxiliary assembly of the utility model.

[0031] Figure 6 It is the installation schematic diagram of mounting column and unidirectional screw rod of the utility model.

[0032] Figure 7 It is the structure disassembly drawing of threaded rod and mounting arm.

[0033] Figure 8 It is the installation schematic diagram of H type frame and movable plate of the utility model.

[0034] In the drawing, the component list that each sign represents is as follows:

[0035] 1 - workbench, 2 - rotating assembly, 201 - moving plate, 201a - first slider, 201b - first slide rod, 201c - second slider, 201d - tripod, 202 - bidirectional screw rod, 202a - first hand wheel, 203 - mounting frame, 203a - second slide rod, 204 - lifting block, 204a - first L-shaped frame, 204b - mounting seat, 205 - hydraulic cylinder, 206 - rotating shaft, 206a - first bevel gear, 206b - limiting disc, 206c - positioning rod, 206d - rotating cap, 207 - second L-shaped frame, 207a - first connecting rod, 208 - placing plate, 209 - driving motor, 209a - motor frame, 209b - second bevel gear, 3 - auxiliary assembly, 301 - mounting column, 301a - ear seat, 302 - one-way screw rod, 302a - second hand wheel, 302b - third slider, 302c - third L-shaped frame, 303 - sleeve rod, 303a - anti-skid sleeve, 304 - threaded rod, 304a - top plate, 304b - limiting rod, 304c - limiting plate, 305 - mounting arm, 305a - third slide rod, 306 - H-shaped frame, 306a - fourth slider, 307 - movable plate, 307a - second connecting rod, 308 - illuminating lamp. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model.

[0037] Embodiment 1

[0038] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , which is the first embodiment of the utility model, and the embodiment provides a dismounting auxiliary device for vacuum pump maintenance, which comprises a workbench 1, and a rotating assembly 2 is arranged at the top center position of the workbench 1, the rotating assembly 2 comprises a moving plate 201, a bidirectional screw rod 202, a mounting frame 203, a lifting block 204, a hydraulic cylinder 205, a rotating shaft 206, a second L-shaped frame 207 and a placing plate 208, the lifting block 204 is driven by the hydraulic cylinder 205 to lift, and the second L-shaped frame 207 and the placing plate 208 are driven by the lifting block 204 to lift, so that the placing height of the vacuum pump is adjusted, and the problem that the placing height of the vacuum pump is not convenient to adjust at present is solved.

[0039] Specifically, two movable plates 201 are provided and are movably connected to both sides of the top center position of the worktable 1 via a two-way lead screw 202. A mounting frame 203 is fixedly connected to the upper surface of the movable plate 201. A lifting block 204 is movably connected inside the mounting frame 203. A hydraulic cylinder 205 is fixedly connected to the top of the mounting frame 203. The output shaft of the hydraulic cylinder 205 is fixedly connected to the top of the lifting block 204. A rotating shaft 206 rotatably passes through the outer wall of the lifting block 204. A second L-shaped frame 207 is fixedly connected to one end of the rotating shaft 206. A mounting plate 208 for installing a vacuum pump is fixedly connected to the horizontal support arm. The movable plate 201 is used to drive the mounting plate 208 to move laterally in opposite directions, thereby facilitating the installation of vacuum pumps of different sizes. The mounting frame 203 is used to install the lifting block 204. The lifting block 204 and the hydraulic cylinder 205 are used to drive the mounting plate 208 to move up and down. The rotating shaft 206 is used to drive the second L-shaped frame 207 to rotate. The second L-shaped frame 207 and the mounting plate 208 are used to place and install the vacuum pump.

[0040] Furthermore, the bidirectional lead screw 202 is rotatably connected to the slide groove located at the center of the top of the workbench 1. The two ends of the bidirectional lead screw 202 extend to the two sides of the workbench 1 and are fixedly connected to the first handwheel 202a. The two sides of the outer wall of the bidirectional lead screw 202 are threaded with the first slider 201a. The top of the first slider 201a is fixedly connected to the center of the lower surface of the moving plate 201.

[0041] The front and rear end slide grooves at the top of the workbench 1 are fixedly connected to the first slide rod 201b. The outer walls of the first slide rod 201b are slidably fitted with the second slider 201c. The top of the second slider 201c is fixedly connected to the front and rear ends of the lower surface of the moving plate 201.

[0042] Tripods 201d are fixedly connected to the front and rear ends of the upper surface of the movable plate 201, and the vertical arms of the tripods 201d are fixedly connected to the front and rear ends of the mounting frame 203 respectively.

[0043] The front and rear ends of the mounting frame 203 are both vertically fixedly connected to the second slide rod 203a, and the front and rear ends of the lifting block 204 are movably sleeved on the outer wall of the second slide rod 203a.

[0044] The side outer wall of the lifting block 204 is fixedly connected with a first L-shaped frame 204a, the transverse branch of the first L-shaped frame 204a is fixedly connected with a driving motor 209 through a motor bracket 209a, the output shaft of the driving motor 209 rotates through the transverse branch of the first L-shaped frame 204a and is sleeved with a second bevel gear 209b, the side of the transverse branch of the first L-shaped frame 204a away from the vertical branch is fixedly connected with a mounting seat 204b, the outer wall of the rotating shaft 206 is sleeved with a first bevel gear 206a, the first bevel gear 206a is meshed below the second bevel gear 209b, one end of the rotating shaft 206 away from the second L-shaped frame 207 rotates through the mounting seat 204b and is fixedly connected with a limiting disc 206b, the outer wall of the limiting disc 206b is threadedly penetrated by a positioning rod 206c below, one end of the positioning rod 206c is fixedly connected with a rotating cap 206d, and the other end of the positioning rod 206c is threadedly connected in a positioning hole on the outer wall of the mounting seat 204b.

[0045] The vertical branch of the second L-shaped frame 207 is fixedly connected with a plurality of first connecting rods 207a, and one end of the first connecting rod 207a away from the second L-shaped frame 207 is movably connected in a circular groove on the other side of the outer wall of the lifting block 204.

[0046] The operation process of the embodiment is as follows: first, rotate the first hand wheel 202a, the first hand wheel 202a drives the bidirectional screw rod 202 to rotate synchronously, the bidirectional screw rod 202 drives the moving plate 201 to move through the first sliding block 201a, so that the mounting frame 203 and the placement plate 208 are driven to move towards or away from each other in the transverse direction through the moving plate 201, when the distance between the placement plates 208 reaches the preset distance, stop rotating the first hand wheel 202a, then install the vacuum pump on the placement plate 208, and start the hydraulic cylinder 205, the output shaft of the hydraulic cylinder 205 drives the lifting block 204 to lift, so that the placement plate 208 and the vacuum pump are lifted through the lifting block 204, the height of the vacuum pump is adjusted, finally, the vacuum pump is disassembled through a screwdriver and the like, and the driving motor 209 is started, the driving motor 209 drives the placement plate 208 and the vacuum pump to rotate through the rotating shaft 206, so that the vacuum pump is disassembled and repaired conveniently.

[0047] Embodiment 2

[0048] Please refer to Figure 1 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, it is the second embodiment of the utility model, this embodiment is based on the last embodiment, but distinguish from the last embodiment is: the top of workbench 1 still is provided with auxiliary assembly 3, auxiliary assembly 3 includes mounting column 301, one-way screw rod 302, sleeve rod 303, threaded rod 304, mounting arm 305, H-shaped frame 306, movable plate 307 and illuminating lamp 308, through mounting column 301 and one-way screw rod 302 drive illuminating lamp 308 to move, and through sleeve rod 303 and threaded rod 304 drive illuminating lamp 308 to lift, to illuminate the inside of vacuum pump through illuminating lamp 308, solve the problem of not convenient to the inside of vacuum pump auxiliary lighting of existing.

[0049] Specifically, mounting column 301 is movably connected to the top rear end of workbench 1 through one-way screw rod 302, anti-skid sleeve 303a is sleeved on the outer wall of mounting column 301, sleeve rod 303 is rotatably connected in mounting column 301, threaded rod 304 is threadedly sleeved in sleeve rod 303, mounting arm 305 is rotatably connected to the upper end of threaded rod 304, H-shaped frame 306 is movably connected to the bottom of mounting arm 305, movable plate 307 is movably connected to the both sides of H-shaped frame 306, and illuminating lamp 308 is rotatably connected to the outer wall of movable plate 307.

[0050] Further, one-way screw rod 302 is rotatably connected to the rear end face of workbench 1 in the transverse direction, second hand wheel 302a is fixedly connected to the both ends of one-way screw rod 302, third sliding block 302b is threadedly sleeved on the center of the outer wall of one-way screw rod 302, third L-shaped frame 302c is fixedly connected to the top of third sliding block 302b, and the vertical branch of third L-shaped frame 302c is fixedly connected to the lower side of the rear end face of mounting column 301.

[0051] Ear seat 301a is fixedly connected to the upper side of the rear end face of mounting column 301, top plate 304a is fixedly connected to the top end of threaded rod 304, limiting rod 304b is fixedly connected to the rear end of the lower surface of top plate 304a, limiting plate 304c is movably penetrated through ear seat 301a and fixedly connected to the bottom end of limiting rod 304b.

[0052] Third sliding rod 305a is fixedly connected to the inside of mounting arm 305 in the longitudinal direction, fourth sliding block 306a is slidably sleeved on the outer wall of third sliding rod 305a, fourth sliding block 306a is fixedly connected to the top of H-shaped frame 306, second connecting rod 307a is movably penetrated through the both sides of U-shaped frame, and the end of second connecting rod 307a is fixedly connected to movable plate 307.

[0053] The rest of the structure is the same as that of embodiment 1.

[0054] The operation process of the embodiment is as follows: the second hand wheel 302a is rotated, the second hand wheel 302a drives the unidirectional screw rod 302 to rotate, the unidirectional screw rod 302 drives the mounting column 301 and the illuminating lamp 308 to move in the horizontal direction through the third sliding block 302b, and the sleeve rod 303 is rotated, the sleeve rod 303 drives the mounting arm 305 to ascend and descend through the threaded rod 304, the height of the illuminating lamp 308 is adjusted, finally, the position and angle of the illuminating lamp 308 are further adjusted through the H-shaped frame 306 and the movable plate 307, and the inside of the vacuum pump is illuminated through the illuminating lamp 308, so that the inside of the vacuum pump is conveniently disassembled and repaired.

[0055] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A disassembly aid for the repair of a vacuum pump, comprising a workbench (1), characterized in that: The top center position of the workbench (1) is provided with a rotating assembly (2), and the top of the workbench (1) is also provided with an auxiliary assembly (3); The rotating assembly (2) comprises a moving plate (201) movably connected on both sides of the top center position of the workbench (1) through a bidirectional screw rod (202), and the upper surface of the moving plate (201) is fixedly connected with a mounting frame (203), the inside of the mounting frame (203) is movably connected with a lifting block (204), the top of the mounting frame (203) is fixedly connected with a hydraulic cylinder (205), the output shaft of the hydraulic cylinder (205) is fixedly connected to the top of the lifting block (204), and a rotating shaft (206) penetrates the outer wall of the lifting block (204) and rotates, one end of the rotating shaft (206) is fixedly connected with a second L-shaped bracket (207), and the transverse branch of the second L-shaped bracket (207) is fixedly connected with a placing plate (208) for mounting a vacuum pump. The auxiliary assembly (3) comprises a mounting column (301) movably connected to the top rear end of the workbench (1) through a one-way screw rod (302), and an anti-skid sleeve (303a) is sleeved on the outer wall of the mounting column (301), a sleeve rod (303) is rotatably connected in the mounting column (301), a threaded rod (304) is threadedly sleeved in the sleeve rod (303), a mounting arm (305) is rotatably sleeved on the section of the threaded rod (304) above the outer side of the mounting column (301), and an H-shaped bracket (306) is movably connected to the bottom of the mounting arm (305) along its length direction, and the inside of the H-shaped bracket (306) is movably connected with two movable plates (307), and a lighting lamp (308) is rotatably connected to the outer wall of one side of the H-shaped bracket (306) outside.

2. A dismounting aid for maintenance of a vacuum pump according to claim 1, characterized in that The bidirectional screw rod (202) is rotatably connected in the chute at the top center position of the workbench (1), and the two ends of the bidirectional screw rod (202) extend to the two sides of the workbench (1) and are fixedly connected with a first hand wheel (202a), and the outer wall of the bidirectional screw rod (202) is threadedly sleeved with a first sliding block (201a) on both sides, and the top of the first sliding block (201a) is fixedly connected to the lower surface center position of the moving plate (201).

3. A dismounting aid for maintenance of a vacuum pump according to claim 2, characterized in that The inside of the chute at the top front and rear ends of the workbench (1) is fixedly connected with a first sliding rod (201b), and the outer wall of the first sliding rod (201b) is movably sleeved with a second sliding block (201c) on both sides, and the top of the second sliding block (201c) is fixedly connected to the lower surface front and rear ends of the moving plate (201).

4. A dismounting aid for maintenance of a vacuum pump according to claim 1, characterized in that The upper surface front and rear ends of the moving plate (201) are fixedly connected with tripods (201d), and the vertical branch of the tripod (201d) is fixedly connected to the front and rear end faces of the mounting frame (203).

5. A dismounting aid for maintenance of a vacuum pump according to claim 1, characterized in that The inside front and rear ends of the mounting frame (203) are fixedly connected with a second sliding rod (203a) along the vertical direction, and the front and rear ends of the lifting block (204) are movably sleeved on the outer wall of the second sliding rod (203a).

6. A dismounting aid for maintenance of a vacuum pump according to claim 1, characterized in that The side outer wall of the lifting block (204) is fixedly connected with a first L-shaped frame (204a), and the lateral branch of the first L-shaped frame (204a) is fixedly connected with a driving motor (209) through a motor bracket (209a). The output shaft of the driving motor (209) penetrates through the lateral branch of the first L-shaped frame (204a) and is sleeved with a second bevel gear (209b). The lateral branch of the first L-shaped frame (204a) is fixedly connected with a mounting seat (204b) away from the vertical branch. The outer wall of the rotating shaft (206) is sleeved with a first bevel gear (206a), and the first bevel gear (206a) is meshed below the second bevel gear (209b). The end of the rotating shaft (206) away from the second L-shaped frame (207) penetrates through the mounting seat (204b) and is fixedly connected with a limiting disc (206b). The outer wall of the limiting disc (206b) is threadedly penetrated below by a positioning rod (206c). One end of the positioning rod (206c) is fixedly connected with a rotating cap (206d), and the other end of the positioning rod (206c) is threadedly connected in a positioning hole in the outer wall of the mounting seat (204b).

7. A dismounting aid for maintenance of a vacuum pump according to claim 6, characterized in that The vertical branch of the second L-shaped frame (207) is fixedly connected with a plurality of first connecting rods (207a), and one end of the first connecting rod (207a) away from the second L-shaped frame (207) is movably connected in a circular groove in the other side outer wall of the lifting block (204).

8. A dismounting aid for maintenance of a vacuum pump according to claim 1, characterized in that The unidirectional screw rod (302) is movably connected on the rear end face of the workbench (1) in the transverse direction, and the two ends of the unidirectional screw rod (302) are fixedly connected with second hand wheels (302a). The outer wall of the unidirectional screw rod (302) is threadedly sleeved with a third sliding block (302b) at the center position, and the top of the third sliding block (302b) is fixedly connected with a third L-shaped frame (302c). The vertical branch of the third L-shaped frame (302c) is fixedly connected below the rear end face of the mounting column (301).

9. A dismounting aid for maintenance of a vacuum pump according to claim 1, characterized in that The rear end face of the mounting column (301) is fixedly connected with an ear seat (301a), and the top end of the threaded rod (304) is fixedly connected with a top plate (304a). The rear end of the lower surface of the top plate (304a) is fixedly connected with a limiting rod (304b), and the bottom end of the limiting rod (304b) movably penetrates through the ear seat (301a) and is fixedly connected with a limiting plate (304c).

10. A dismounting aid for maintenance of a vacuum pump according to claim 1, characterized in that The inside of the mounting arm (305) is fixedly connected with a third sliding rod (305a) in the longitudinal direction, and the outer wall of the third sliding rod (305a) is slidably sleeved with a fourth sliding block (306a). The bottom of the fourth sliding block (306a) is fixedly connected to the top of the H-shaped frame (306), and the two side outer walls of the U-shaped frame are movably penetrated by a second connecting rod (307a). One end of the second connecting rod (307a) on the outside of the H-shaped frame (306) is fixedly connected to the movable plate (307).

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