Expansion sleeve dismounting device in vacuum industry

Abstract

The invention discloses a vacuum industry expansion sleeve dismounting device which comprises a fastening sleeve, an expansion sleeve and a shell, one side of the shell is rotationally connected with a shell, a positioning mechanism used for clamping and fixing the fastening sleeve or the expansion sleeve is arranged in an inner cavity of the shell, and a gear ring driving the lower end of the positioning mechanism to move is arranged in an inner cavity of the shell. When the shell drives the gear ring to rotate clockwise, the lower end of the positioning mechanism is close to the outer wall of the fastening sleeve. The shell is driven to rotate clockwise by pushing the push rod, so that the fastening sleeve and the tensioning sleeve are clamped and fixed, then the fastening sleeve and the tensioning sleeve can be disassembled by pulling the traction plate, and the outer walls of the fastening sleeve and the tensioning sleeve are stressed more uniformly; therefore, the situation that the edges of the outer walls of the fastening sleeve and the tensioning sleeve are extruded to be abraded, sunken or deformed in the dismounting process is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of expansion sleeve disassembly, and specifically to an expansion sleeve disassembly device in the vacuum industry. Background Art

[0002] The device for expanding sleeve disassembly is mainly used in the disassembly process of the expansion sleeve of a specific series of vacuum pumps in the vacuum industry. When disassembling the expansion sleeve, the disassembling personnel often use flat hard objects to pry out the expansion sleeve. Therefore, it is very easy for the expansion sleeve to be damaged during forced disassembly, or the disassembly to be skewed and finally damage the parts. Summary of the Invention

[0003] The purpose of the present invention is to provide an expansion sleeve disassembly device in the vacuum industry to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] An expansion sleeve disassembly device in the vacuum industry includes a fastening sleeve, a tensioning sleeve and a housing. One side of the housing is rotatably connected to an outer shell. A positioning mechanism for clamping and fixing the fastening sleeve or the tensioning sleeve is arranged in the inner cavity of the housing. A toothed ring for driving the lower end of the positioning mechanism to move is arranged in the inner cavity of the outer shell. When the outer shell drives the toothed ring to rotate clockwise, the lower end of the positioning mechanism approaches the outer wall of the fastening sleeve or.

[0006] As a further solution of the present invention: The positioning mechanism includes symmetrical gears. Symmetrical installation grooves are opened in the inner cavity of the housing. The gears are rotatably connected to the inner cavity of the installation grooves. A threaded rod is threadedly connected to the middle of the upper end of the gear. A clamping plate is fixedly connected to the middle of the end of the threaded rod close to the center of the housing. The clamping plate is an arc-shaped plate and a silica gel pad is fixedly connected to the lower end surface.

[0007] As a further solution of the present invention: Symmetrical push rods are fixedly connected to the outer wall of the outer shell. The included angle between the push rod and the threaded rod is 45°.

[0008] As a further solution of the present invention: An annular groove is opened in the middle of the inner cavity of the outer shell close to one side of the housing. The outer wall of the toothed ring away from the gear is fixedly connected to the inner cavity side wall of the annular groove. The inner cavity diameter of the outer shell is larger than the inner cavity diameter of the housing.

[0009] As a further solution of the present invention: Symmetrical traction plates are fixedly connected to the middle of the side of the housing away from the outer shell. Symmetrical grooves are opened on the side of the traction plate close to the housing.

[0010] As a further solution of the present invention: a chute is provided on one side of the upper part of the outer wall of the housing. A connecting rod is slidably connected in the inner cavity of the chute. One end of the connecting rod away from the center of the housing is fixedly connected with a slider, and the lower end surface of the slider is attached to the outer wall of the housing.

[0011] As a further solution of the present invention: one end of the connecting rod close to the toothed ring is fixedly connected with a clamping block. One end of the clamping block away from the connecting rod is clamped with the toothed ring. One end of the connecting rod away from the clamping block is elastically connected with the side wall of the inner cavity of the chute through a spring.

[0012] As a further solution of the present invention: a slope is provided on one side of the clamping block away from the uppermost toothed ring, and the slope is inclined towards the center position of the connecting rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] By pushing the push rod to drive the outer shell to rotate clockwise, and then driving the toothed ring to rotate clockwise synchronously. The toothed ring will drive the gear to rotate clockwise and then drive the threaded rod to drive the clamping plate to move towards the center position of the housing, so as to clamp and fix the fastening sleeve and the tensioning sleeve. Then pulling the traction plate can complete the disassembly of the fastening sleeve and the tensioning sleeve, and the outer walls of the fastening sleeve and the tensioning sleeve are more evenly stressed, thus avoiding the situation of wear, depression or deformation caused by extrusion at the outer wall edges of the fastening sleeve and the tensioning sleeve during the disassembly process. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the housing structure of the present invention.

[0017] Figure 3 It is a schematic diagram of the internal structure of the housing in the present invention.

[0018] Figure 4 For the present invention Figure 3 It is a schematic diagram of the structure of area B.

[0019] Figure 5 For the present invention Figure 1 It is a schematic diagram of the structure of area A.

[0020] Figure 6 It is a schematic diagram of the structure of the clamping block in the present invention.

[0021] In the figure: 1. Housing; 2. Outer shell; 3. Traction plate; 4. Push rod; 5. Threaded rod; 6. Clamping plate; 7. Slide block; 8. Tooth ring; 9. Gear; 10. Annular groove; 11. Slide groove; 12. Clamping block; 13. Connecting rod; 14. Groove; 15. Tightening sleeve; 16. Expanding sleeve; 17. Installation groove; 18. Inclined plane. Detailed implementation mode

[0022] Please refer to Figure 1-2 , in the embodiment of the present invention, a disassembly device for an expanding sleeve in the vacuum industry, the expanding sleeve includes a tightening sleeve 15 and an expanding sleeve 16, the expanding sleeve 16 is connected to the driven wheel, the tightening sleeve 15 is connected to the transmission shaft, and after the tightening sleeve 15 and the expanding sleeve 16 are fixed by bolts, at the same time, the transmission shaft is clamped and fixed by the tightening sleeve 15, and the expanding sleeve 16 expands outwards and is fixedly connected to the driven wheel. The disassembly device includes a housing 1, one side of the housing 1 is rotatably connected with an outer shell 2, a positioning mechanism for clamping and fixing the tightening sleeve 15 or the expanding sleeve 16 is arranged in the inner cavity of the housing 1, and a tooth ring 8 for driving the lower end of the positioning mechanism to move is arranged in the inner cavity of the outer shell 2. When the outer shell 2 drives the tooth ring 8 to rotate clockwise, the lower end of the positioning mechanism approaches the outer wall of the tightening sleeve 15 or.

[0023] Please refer to Figure 3 , the positioning mechanism includes symmetric gears 9, symmetric installation grooves 17 are opened in the inner cavity of the housing 1, the gears 9 are rotatably connected in the inner cavity of the installation grooves 17, and a threaded rod 5 is threadedly connected to the middle of the upper end of the gear 9. That is, when the gear 9 rotates clockwise, since the threaded rod 5 is threadedly connected to the gear 9, at this time, the threaded rod 5 will move towards the center position of the housing 1. When the gear 9 rotates counterclockwise, the threaded rod 5 will continuously move away from the center position of the housing 1. A clamping plate 6 is fixedly connected to the middle of the end of the threaded rod 5 close to the center of the housing 1. The clamping plate 6 is an arc-shaped plate and a silica gel pad is fixedly connected to the lower end surface. By driving the clamping plate 6 to move through the threaded rod 5, the tightening sleeve 15 or the expanding sleeve 16 of more size specifications can be clamped and fixed. Through the cooperation of the arc-shaped clamping plate 6 and the silica gel pad, when clamping and fixing the tightening sleeve 15 or the expanding sleeve 16 of different specifications, the lower end surface of the clamping plate 6 can be more closely attached to the outer surfaces of the tightening sleeve 15 and the expanding sleeve 16 of different specifications, thereby increasing the friction force when the clamping plate 6 clamps the tightening sleeve 15 or the expanding sleeve 16 of different specifications, and making the clamping effect of the clamping plate 6 on the tightening sleeve 15 and the expanding sleeve 16 more stable.

[0024] Please refer to Figure 4, symmetric push rods 4 are fixedly connected to the outer wall of the outer shell 2. When the threaded rod 5 and the push rod 4 are in the initial position, the included angle between the push rod 4 and the threaded rod 5 is 45°. That is, when the upper end surface of the clamping plate 6 is in contact with the top of the inner cavity of the housing 1, the included angle between the push rod 4 and the threaded rod 5 is 45° at this time. When the push rod 4 is pushed to drive the outer shell 2 to rotate clockwise, the toothed ring 8 arranged in the inner cavity of the outer shell 2 will drive the gear 9 to rotate clockwise, thereby driving the threaded rod 5 and the clamping plate 6 to move towards the center position of the housing 1, and further clamping the fastening sleeve 15 or the tensioning sleeve 16. An annular groove 10 is formed on one side of the middle part of the inner cavity of the outer shell 2 close to the housing 1. The outer wall of the toothed ring 8 away from the gear 9 is fixedly connected to the inner cavity side wall of the annular groove 10, and the inner cavity diameter of the outer shell 2 is larger than the inner cavity diameter of the housing 1. That is, the inner cavity side wall of the outer shell 2 is sleeved on the outer wall of the housing 1. When the push rod 4 is pushed to drive the outer shell 2 to rotate clockwise, it will synchronously drive the toothed ring 8 located in the inner cavity of the annular groove 10 to rotate clockwise, thereby driving the gear 9 to rotate clockwise through the meshing of the toothed ring 8 and the gear 9, and further driving the clamping plate 6 to approach the center position of the housing 1 to clamp and fix the fastening sleeve 15 or the tensioning sleeve 16.

[0025] Please refer to Figure 5-6, on the middle part of one side of the housing 1 away from the outer shell 2, there are symmetrically fixed traction plates 3. On the side of the traction plate 3 close to the housing 1, there are symmetrically arranged grooves 14. By placing the fingers in the inner cavity of the grooves 14 and then pulling the traction plate 3, the housing 1 and the outer shell 2 can be driven to move horizontally synchronously. When disassembling the fastening sleeve 15 from the inner cavity of the tensioning sleeve 16, push the push rod 4 to rotate clockwise, thereby driving the clamping plate 6 to approach the outer wall of the fastening sleeve 15 to clamp and fix the fastening sleeve 15. Then pull the traction plate 3, and the fastening sleeve 15 can be driven to continuously move away from the position where the tensioning sleeve 16 is located, and thus the fastening sleeve 15 can be disassembled from the inner cavity of the tensioning sleeve 16. During the process of the clamping plate 6 clamping the fastening sleeve 15, in order to prevent the clamping of the clamping plate 6 from loosening, that is, in order to prevent the outer shell 2 from rotating counterclockwise during the process of pulling the traction plate 3, a sliding groove 11 is provided on the upper part of one side of the outer wall of the housing 1. A connecting rod 13 is slidably connected in the inner cavity of the sliding groove 11. One end of the connecting rod 13 away from the center of the housing 1 is fixedly connected with a slider 7. The lower end surface of the slider 7 is attached to the outer wall of the housing 1. One end of the connecting rod 13 close to the toothed ring 8 is fixedly connected with a clamping block 12. One end of the clamping block 12 away from the connecting rod 13 is clamped with the toothed ring 8. One end of the connecting rod 13 away from the clamping block 12 is elastically connected with the inner cavity side wall of the sliding groove 11 through a spring. On one side of the clamping block 12 away from the uppermost toothed ring 8, there is an inclined surface 18, and the inclined surface 18 is inclined towards the center position of the connecting rod 13. That is, when the toothed ring 8 rotates clockwise along with the outer shell 2, at this time, the tooth inclined surface 18 of the toothed ring 8 comes into contact, and it will squeeze the clamping block 12 to move towards the side of the inner cavity of the sliding groove 11 away from the toothed ring 8. That is, during the clockwise rotation of the toothed ring 8, the clamping block 12 will not hinder the movement of the toothed ring 8.

[0026] During the counterclockwise rotation of the gear ring 8, at this time, the teeth of the gear ring 8 contact the side of the clamping block 12 away from the inclined surface 18. At this time, the teeth of the gear ring 8 and the clamping block 12 are engaged with each other, and the clamping block 12 will limit the counterclockwise rotation of the gear ring 8, thereby preventing the clamping of the clamping plate 6 on the fastening sleeve 15 and the tensioning sleeve 16 from becoming loose. After the fastening sleeve 15 is removed from the inner cavity of the tensioning sleeve 16, at this time, the slider 7 is pulled to move towards the side away from the gear ring 8 in the inner cavity of the chute 11, so that the clamping block 12 is separated from the gear ring 8. Then, the push rod 4 is pushed to rotate counterclockwise, and the clamping plate 6 can be driven to move away from the center position of the housing 1, thereby releasing the clamping of the fastening sleeve 15. Then, the outer shell 2 is driven to rotate clockwise again, and the clamping plate 6 can be driven to clamp and fix the tensioning sleeve 16. Then, the traction plate 3 is pulled to remove the tensioning sleeve 16 from the inner cavity of the driven wheel. After being clamped and fixed by the clamping plate 6, the traction plate 3 is pulled to complete the removal of the tensioning sleeve. Compared with the method of inserting a flat hard object into the gap between the fastening sleeve 15 and the tensioning sleeve 16 and the gap between the tensioning sleeve 16 and the driven wheel, and then prying the fastening sleeve 15 or the tensioning sleeve 16 to one side for disassembly, the forces on the outer walls of the fastening sleeve 15 and the tensioning sleeve 16 will be more uniform. At the same time, it also avoids the extrusion of the flat hard object on the edges of the fastening sleeve 15 and the tensioning sleeve 16, thereby preventing the fastening sleeve 15 and the tensioning sleeve 16 from deforming and denting due to uneven force.

Claims

1. A vacuum industry expansion sleeve disassembly device, comprising a fastening sleeve, a tension sleeve and a shell, characterized in that: One side of the shell is rotatably connected to an outer shell, and the inner cavity of the shell is provided with a positioning mechanism for clamping and fixing the fastening sleeve or the tensioning sleeve. The inner cavity of the shell is provided with a gear ring for driving the lower end of the positioning mechanism to move. When the outer shell drives the gear ring to rotate clockwise, the lower end of the positioning mechanism is close to the outer wall of the fastening sleeve or.

2. A vacuum industry expansion sleeve disassembly device according to claim 1, characterized in that: The positioning mechanism includes symmetrical gears, and the inner cavity of the shell is provided with symmetrical installation grooves. The gears are rotatably connected in the inner cavity of the installation grooves. A threaded rod is threadedly connected to the middle part of the upper end of the gear, and a clamping plate is fixedly connected to the middle part of one end of the threaded rod close to the center of the shell. The clamping plate is an arc-shaped plate and a silicone pad is fixedly connected to the lower end surface.

3. A vacuum industry expansion sleeve disassembly device according to claim 2, characterized in that: A symmetrical push rod is fixedly connected to the outer wall of the shell, and the angle between the push rod and the threaded rod is 45°.

4. The vacuum industry expansion sleeve disassembly device according to claim 2 is characterized in that: An annular groove is provided on one side of the inner cavity of the shell near the shell, the outer wall of the gear ring away from the gear is fixedly connected to the inner cavity side wall of the annular groove, and the inner cavity diameter of the shell is larger than the inner cavity diameter of the shell.

5. The vacuum industry expansion sleeve disassembly device according to claim 1, characterized in that: A symmetrical traction plate is fixedly connected to the middle of one side of the shell away from the outer shell, and a symmetrical groove is formed on one side of the traction plate close to the shell.

6. The vacuum industry expansion sleeve disassembly device according to claim 1, characterized in that: A slide groove is provided on one side of the upper part of the outer wall of the shell, and a connecting rod is slidably connected to the inner cavity of the slide groove. A slider is fixedly connected to one end of the connecting rod away from the center of the shell, and the lower end surface of the slider is in contact with the outer wall of the shell.

7. A vacuum industry expansion sleeve disassembly device according to claim 6, characterized in that: One end of the connecting rod close to the gear ring is fixedly connected with a clamping block, and one end of the clamping block away from the connecting rod is clamped with the gear ring. The end of the connecting rod away from the clamping block is elastically connected to the inner cavity side wall of the slide groove through a spring.

8. The vacuum industry expansion sleeve disassembly device according to claim 7, characterized in that: A slope is provided on one side of the clamping block away from the uppermost gear ring, and the slope is inclined toward the center position of the connecting rod.

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