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 invention relates to the technical field of expansion sleeve disassembly, in particular to an expansion sleeve disassembly device for the vacuum industry. Background Art

[0002] The expansion sleeve removal device is primarily used in the vacuum industry to dismantle the expansion sleeves of specific vacuum pumps. During removal, dismantlers often use flat, hard objects to lift the sleeve out. This can easily lead to damage to the sleeve during forced removal, or even skewed removal, ultimately damaging the part. Summary of the Invention

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

[0004] To achieve the above object, the present invention provides the following technical solutions: A vacuum industry expansion sleeve disassembly device includes a fastening sleeve, a tensioning sleeve and a shell. One side of the shell is rotatably connected to an outer shell. 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 that drives 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.

[0005] As a further solution of the present invention: the positioning mechanism includes symmetrical gears, the inner cavity of the shell is provided with symmetrical mounting grooves, the gears are rotatably connected in the inner cavity of the mounting grooves, a threaded rod is threadedly connected to the middle part of the upper end of the gear, and a splint is fixedly connected to the middle part of one end of the threaded rod close to the center of the shell, the splint is an arc-shaped plate and the lower end face is fixedly connected to a silicone pad.

[0006] As a further solution of the present invention: 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°.

[0007] As a further solution of the present invention: an annular groove is provided on the side of the middle of the inner cavity of the shell close to 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.

[0008] As a further solution of the present invention: a symmetrical pulling plate is fixedly connected to the middle of a side of the shell away from the outer shell, and a symmetrical groove is formed on a side of the pulling plate close to the shell.

[0009] As a further solution of the present invention: a sliding groove is opened on one side of the upper part of the outer wall of the shell, the inner cavity of the sliding groove is slidably connected to a connecting rod, the end of the connecting rod away from the center of the shell is fixedly connected to a slider, and the lower end surface of the slider is in contact with the outer wall of the shell.

[0010] As a further solution of the present invention: the end of the connecting rod close to the gear ring is fixedly connected with a clamping block, the end of the connecting rod away from the clamping block is clamped with the gear ring, and 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.

[0011] As a further solution of the present invention: a slope is provided on a side of the clamping block away from the uppermost gear ring, and the slope is inclined toward the center position of the connecting rod.

[0012] Compared with the prior art, the present invention has the following beneficial effects: By pushing the push rod, the outer shell is driven to rotate clockwise, and then the gear ring is driven to rotate clockwise synchronously. The gear ring drives the gear to rotate clockwise and then drives the threaded rod to drive the splint toward the center position of the shell, thereby clamping and fixing the fastening sleeve and the tensioning sleeve. Then, the traction plate is pulled to complete the disassembly of the fastening sleeve and the tensioning sleeve. The outer walls of the fastening sleeve and the tensioning sleeve are subjected to more uniform force, thereby avoiding the outer wall edges of the fastening sleeve and the tensioning sleeve being squeezed during the disassembly process, resulting in wear, dents or deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the shell structure of the present invention.

[0015] Figure 3 Schematic diagram of the internal structure of the shell in the present invention.

[0016] Figure 4 For the present invention Figure 3 Schematic diagram of the structure of area B.

[0017] Figure 5 For the present invention Figure 1 Schematic diagram of the structure of area A.

[0018] Figure 6 It is a structural schematic diagram of the card block in the present invention.

[0019] In the figure: 1. Shell; 2. Outer shell; 3. Pull plate; 4. Push rod; 5. Threaded rod; 6. Clamp; 7. Slider; 8. Gear ring; 9. Gear; 10. Annular groove; 11. Slide groove; 12. Block; 13. Connecting rod; 14. Groove; 15. Fastening sleeve; 16. Tension sleeve; 17. Mounting groove; 18. Inclined surface. DETAILED DESCRIPTION

[0020] See also Figure 1-2The embodiment of the application discloses a vacuum industry expansion sleeve dismounting device, which comprises a fastening sleeve 15 and an expansion sleeve 16, wherein the expansion sleeve 16 is connected with a driven wheel, the fastening sleeve 15 is connected with a transmission shaft, and the fastening sleeve 15 and the expansion sleeve 16 are fixed by bolts, so that the fastening sleeve 15 clamps and fixes the transmission shaft, the expansion sleeve 16 is fixedly connected with the driven wheel by outward expansion, and the dismounting device comprises a shell 1, one side of the shell 1 is rotationally connected with an outer shell 2, an inner cavity of the shell 1 is provided with a positioning mechanism for clamping and fixing the fastening sleeve 15 or the expansion sleeve 16, an inner cavity of the outer shell 2 is provided with a gear ring 8 for driving the lower end of the positioning mechanism to move, and when the outer shell 2 drives the gear ring 8 to rotate clockwise, the lower end of the positioning mechanism is close to the outer wall of the fastening sleeve 15 or the expansion sleeve 16.

[0021] Please refer to Figure 3 The positioning mechanism comprises symmetrical gear wheels 9, symmetrical installation grooves 17 are formed in the inner cavity of the shell 1, the gear wheels 9 are rotationally connected in the inner cavities of the installation grooves 17, screw rods 5 are threadedly connected to the middle portions of the upper ends of the gear wheels 9, that is, when the gear wheels 9 rotate clockwise, the screw rods 5 move towards the center of the shell 1 due to the threaded connection between the screw rods 5 and the gear wheels 9, and when the gear wheels 9 rotate counterclockwise, the screw rods 5 are away from the center of the shell 1, one end of the screw rod 5 close to the center of the shell 1 is fixedly connected with a clamping plate 6, the clamping plate 6 is an arc-shaped plate and is fixedly connected with a silica gel pad at the lower end face, the clamping plate 6 is driven to move by the screw rod 5, so that the fastening sleeve 15 or the expansion sleeve 16 of more sizes can be clamped and fixed, the arc-shaped clamping plate 6 and the silica gel pad are matched, so that the lower end face of the clamping plate 6 is more close to the outer surfaces of the fastening sleeve 15 and the expansion sleeve 16 when the fastening sleeve 15 or the expansion sleeve 16 of different sizes is clamped and fixed, and the friction of the clamping plate 6 when clamping the fastening sleeve 15 or the expansion sleeve 16 of different sizes is increased, so that the clamping effect of the clamping plate 6 on the fastening sleeve 15 and the expansion sleeve 16 is more stable.

[0022] Please refer to Figure 4, the outer wall of the shell 2 is fixedly connected with a symmetrical push rod 4. When the threaded rod 5 and the push rod 4 are in the initial position, the angle between the push rod 4 and the threaded rod 5 is 45 degrees, that is, when the upper end surface of the splint 6 is in contact with the top of the inner cavity of the shell 1, the angle between the push rod 4 and the threaded rod 5 is 45 degrees. When the push rod 4 is pushed to drive the shell 2 to rotate clockwise, the gear ring 8 provided in the inner cavity of the shell 2 will drive the gear 9 to rotate clockwise, thereby driving the threaded rod 5 and the splint 6 to move toward the center of the shell 1, thereby clamping the fastening sleeve 15 or the tensioning sleeve 16, and the middle of the inner cavity of the shell 2 An annular groove 10 is provided on the side close to the shell 1, and the outer wall of the gear 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 shell 2 is larger than the inner cavity diameter of the shell 1, that is, the inner cavity side wall of the shell 2 is sleeved on the outer wall of the shell 1. When the push rod 4 is pushed to drive the shell 2 to rotate clockwise, the gear ring 8 located in the inner cavity of the annular groove 10 will be synchronously driven to rotate clockwise, thereby driving the gear 9 to rotate clockwise through the mutual engagement of the gear ring 8 and the gear 9, and then driving the splint 6 to clamp and fix the fastening sleeve 15 or the tensioning sleeve 16 close to the center of the shell 1.

[0023] See also Figure 5-6The symmetrical traction plate 3 is fixedly connected to the middle part of the side of the shell 1 away from the shell 2, and a symmetrical groove 14 is opened on the side of the traction plate 3 close to the shell 1. By placing a finger in the inner cavity of the groove 14 and then pulling the traction plate 3, the shell 1 and the shell 2 can be driven to move horizontally synchronously. When the fastening sleeve 15 is removed from the inner cavity of the tensioning sleeve 16, the push rod 4 is pushed to rotate clockwise, thereby driving the splint 6 close to the outer wall of the fastening sleeve 15 and clamping and fixing the fastening sleeve 15. Then, the traction plate 3 is pulled, and the fastening sleeve 15 can be continuously driven away from the position of the tensioning sleeve 16, thereby removing the fastening sleeve 15 from the inner cavity of the tensioning sleeve 16. In the process of the splint 6 clamping the fastening sleeve 15, in order to prevent the clamping of the splint 6 from loosening, that is, to prevent the shell 2 from rotating counterclockwise during the process of pulling the traction plate 3, the shell 1 The end of the connecting rod 13 close to the gear ring 8 is fixedly connected to the block 12, and the end of the block 12 away from the gear ring 8 is clamped by the gear ring 8. The end of the connecting rod 13 away from the block 12 is elastically connected to the inner cavity side wall of the slide groove 11 by a spring. The side of the block 12 away from the gear ring 8 at the top is provided with an inclined surface 18, which is inclined toward the center position of the connecting rod 13. That is, when the gear ring 8 rotates clockwise with the shell 2, the tooth inclined surface 18 of the gear ring 8 contacts, which will squeeze the block 12 to move toward the side of the inner cavity of the slide groove 11 away from the gear ring 8. That is, during the clockwise rotation of the gear ring 8, the block 12 will not hinder the movement of the gear ring 8.

[0024] During the counterclockwise rotation of the gear ring 8, the teeth of the gear ring 8 contact the side of the block 12 away from the inclined surface 18. At this time, the teeth of the gear ring 8 and the block 12 engage with each other, and the 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 loosening. After the fastening sleeve 15 is removed from the inner cavity of the tensioning sleeve 16, the slider 7 is pulled toward the side of the inner cavity of the slide groove 11 away from the gear ring 8, so that the block 12 is separated from the gear ring 8, and then the push rod 4 is pushed to rotate counterclockwise, which can drive the clamping plate 6 away from the center position of the shell 1, thereby releasing the clamping of the fastening sleeve 15, and then drive the shell 2 to rotate clockwise again, which can drive the clamping plate 6 to clamp the tensioning sleeve 16 is clamped and fixed, and 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 disassembly 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 tilting the fastening sleeve 15 or the tensioning sleeve 16 to one side for disassembly, the force applied to the outer wall of the fastening sleeve 15 and the tensioning sleeve 16 will be more uniform, and at the same time, it also avoids the squeezing of the edges of the fastening sleeve 15 and the tensioning sleeve 16 by the flat hard object, thereby preventing the fastening sleeve 15 and the tensioning sleeve 16 from being deformed and dented due to uneven force.

Claims

1. A vacuum industry expansion sleeve disassembly device, comprising a fastening sleeve, an expansion sleeve and a housing, characterized in that: One side of the shell is rotatably connected to the 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 that drives 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 mounting grooves. The gears are rotatably connected in the inner cavity of the mounting grooves. A threaded rod is threadedly connected to the middle part of the upper end of the gear, and a splint is fixedly connected to the middle part of one end of the threaded rod close to the center of the shell. The splint is an arc-shaped plate and a silicone pad is fixedly connected to the lower end surface.

3. The 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 degrees.

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

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

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

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

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

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