Convenient screw vacuum pump rotor hoisting tool

Abstract

The utility model provides a convenient screw vacuum pump rotor hoisting tool, which relates to the technical field of hoisting tools and comprises a mounting seat, a chute is arranged at the bottom of the mounting seat, a first threaded rod is rotatably mounted in the chute, and a motor is fixedly mounted on the outer wall of the mounting seat. During use, a worker inserts one end of a rotor into a fixing opening of a fixing plate at the bottom of a mounting seat, then a motor is started, a first threaded rod rotates to drive a sliding plate to move, the other fixing plate starts to move until the other end of the rotor enters the other fixing opening, and at the moment, the worker rotates two grips to drive the rotor to rotate; the grip drives the second threaded rod to rotate, so that the moving plate moves along the storage groove until the rubber pads on the surface of the moving plate make contact with the rotor, when the two ends of the rotor are clamped by the two sets of rubber pads correspondingly, the friction force is increased through the pressure of the moving plate, the rotor is fixed, and therefore the rotors of different specifications can be fixed.

Description

Technical Field

[0001] This utility model relates to the field of hoisting tools, and in particular to a convenient hoisting tool for screw vacuum pump rotors. Background Technology

[0002] The rotor of a screw vacuum pump is the core component of the pump. A screw vacuum pump rotor typically consists of a pair of meshing screws. The screw profiles are relatively complex, with common structures being twin-screw and triple-screw designs. In a twin-screw rotor, the helical grooves on the two screws face opposite directions, forming multiple sealed chambers within the pump casing. A triple-screw structure has one driving screw and two driven screws, with synchronous gears ensuring proper meshing and relative movement between the screws.

[0003] In existing technologies, screw vacuum pump rotors are typically large and heavy, making manual handling and installation difficult. Therefore, hoisting equipment is usually required to accurately lift the rotor to a designated location for installation into the vacuum pump housing, or for removal from the housing during maintenance. However, different rotor specifications necessitate the use of different types or sizes of hoisting tools, increasing operating costs. Utility Model Content

[0004] The purpose of this invention is to address the problem in the existing technology that different rotor specifications require different types or specifications of lifting tools, thus increasing the cost of use. Therefore, this invention proposes a convenient screw vacuum pump rotor lifting tool.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a convenient screw vacuum pump rotor hoisting tool, including a mounting base, a sliding groove at the bottom of the mounting base, a first threaded rod rotatably mounted inside the sliding groove, a motor fixedly mounted on the outer wall of the mounting base, the output end of the motor being fixedly connected to one end of the first threaded rod, a sliding plate threadedly connected to the outer wall of the first threaded rod, a fixing plate provided on both the sliding plate and the bottom of the mounting base, a fixing opening and a through opening through the outer wall of the fixing plate, a storage groove provided on the inner wall of the fixing opening, a second threaded rod rotatably mounted on the inner wall of the storage groove, one end of the second threaded rod entering the through opening and fixedly mounted with a handle, a movable plate slidably mounted inside the storage groove, a threaded groove provided on one end of the movable plate, the second threaded rod being threadedly connected to the threaded groove, and rubber pads fixedly mounted on both the outer wall of the movable plate and the inner wall of the fixing opening.

[0006] Preferably, both the slide plate and the mounting base are fixedly installed with insert plates at their bottoms. Both the slide plate and the mounting base have L-shaped grooves at their bottoms. The insert plate has a limiting groove at one end near the L-shaped groove. A spring is fixedly installed on the inner wall of the limiting groove. A connecting plate is fixedly installed on one end of the spring. A locking block is fixedly installed on one end of the connecting plate. One end of the locking block passes through the insert plate and is slidably connected to the insert plate. A control plate is slidably installed inside the L-shaped groove. The top of the control plate is fixedly connected to the connecting plate. An opening is opened through the top surface of the L-shaped groove. A pull plate is fixedly installed on the end of the control plate near the opening.

[0007] Preferably, the bottom of the fixing plate has a slot, and the inner side wall of the slot has a groove.

[0008] Preferably, a baffle is fixedly installed on the outer wall of the pull plate.

[0009] Preferably, two lifting rings are symmetrically installed on the top of the mounting base.

[0010] Preferably, the outer wall of the movable plate is in contact with the inner wall of the storage tank.

[0011] Preferably, the outer wall of the insert plate is fitted to the inner wall of the slot, and the outer wall of the card block is fitted to the inner wall of the card slot.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, when in use, the operator inserts one end of the rotor into the fixing hole of the fixing plate at the bottom of the mounting base, and then starts the motor. The first threaded rod rotates and drives the sliding plate to move, causing the other fixing plate to start moving until the other end of the rotor enters the other fixing hole. At this time, the operator rotates the two handles, which drive the second threaded rod to rotate, causing the moving plate to move along the storage groove until the rubber pad on the surface of the moving plate contacts the rotor. When both ends of the rotor are clamped by the two sets of rubber pads respectively, the pressure of the moving plate increases the friction, thus fixing the rotor. In this way, rotors of different specifications can be fixed.

[0014] 2. In this utility model, during disassembly, the worker pulls the pull plate, which moves the locking block through the control plate and connecting plate, causing the locking block to leave the slot. At this time, the worker can remove the fixing plate and pull the insert plate out of the slot, which makes it convenient for the worker to store and improves convenience. Attached Figure Description

[0015] Figure 1 This utility model provides an overall perspective view of a convenient screw vacuum pump rotor hoisting tool;

[0016] Figure 2This utility model presents a three-dimensional view of a convenient screw vacuum pump rotor hoisting tool from another perspective.

[0017] Figure 3 A cross-sectional view of the fixing plate body of a convenient screw vacuum pump rotor hoisting tool is provided for this utility model;

[0018] Figure 4 This utility model provides a cross-sectional view of a sliding plate for a convenient screw vacuum pump rotor hoisting tool.

[0019] Legend: 1. Mounting base; 2. Lifting ring; 3. Motor; 4. Fixing plate; 5. Fixing port; 6. Through port; 7. Slide groove; 8. First threaded rod; 9. Slide plate; 10. Rubber pad; 11. Storage slot; 12. Moving plate; 13. Threaded groove; 14. Second threaded rod; 15. Handle; 16. L-shaped groove; 17. Opening; 18. Insert plate; 19. Limiting groove; 20. Slot; 21. Card slot; 22. Spring; 23. Connecting plate; 24. Card block; 25. Control plate; 26. Pull plate; 27. Baffle. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1, such as Figures 1-4 As shown, this utility model provides a convenient screw vacuum pump rotor hoisting tool, including a mounting base 1. The bottom of the mounting base 1 has a sliding groove 7. A first threaded rod 8 is rotatably installed inside the sliding groove 7. A motor 3 is fixedly installed on the outer wall of the mounting base 1. The output end of the motor 3 is fixedly connected to one end of the first threaded rod 8. A sliding plate 9 is threadedly connected to the outer wall of the first threaded rod 8. A fixing plate 4 is provided on both the sliding plate 9 and the bottom of the mounting base 1. A fixing opening 5 and a through opening 6 are provided through the outer wall of the fixing plate 4. A storage groove 11 is provided on the inner wall of the fixing opening 5. A second threaded rod 14 is rotatably installed on the inner wall of the storage groove 11. One end of the second threaded rod 14 enters the through opening 6 and is fixedly installed with a handle 15. A movable plate 12 is slidably installed inside the storage groove 11. A threaded groove 13 is provided on one end of the movable plate 12. The second threaded rod 14 is threadedly connected to the threaded groove 13. Rubber pads 10 are fixedly installed on both the outer wall of the movable plate 12 and the inner wall of the fixing opening 5.

[0023] The effect achieved by the entire embodiment 1 is as follows: When in use, the operator inserts one end of the rotor into the fixing port 5 of the fixing plate 4 at the bottom of the mounting base 1, and then starts the motor 3. The first threaded rod 8 rotates and drives the sliding plate 9 to move, so that the other fixing plate 4 begins to move until the other end of the rotor enters the other fixing port 5. At this time, the operator rotates the two handles 15, and the handles 15 drive the second threaded rod 14 to rotate, so that the moving plate 12 moves along the storage groove 11 until the rubber pad 10 on the surface of the moving plate 12 contacts the rotor. When the two ends of the rotor are clamped by the two sets of rubber pads 10 respectively, the pressure of the moving plate 12 increases the friction, so that the rotor is fixed. In this way, rotors of different specifications can be fixed.

[0024] Example 2, as Figures 1-4 As shown, further, both the bottom of the slide plate 9 and the mounting base 1 are fixedly installed with insert plates 18. Both the bottom of the slide plate 9 and the mounting base 1 are provided with L-shaped grooves 16. The end of the insert plate 18 near the L-shaped groove 16 is provided with a limiting groove 19. A spring 22 is fixedly installed on the inner wall of the limiting groove 19. A connecting plate 23 is fixedly installed on one end of the spring 22. A locking block 24 is fixedly installed on one end of the connecting plate 23. One end of the locking block 24 passes through the insert plate 18 and is slidably connected to the insert plate 18. A control plate 25 is slidably installed inside the L-shaped groove 16. The top of the control plate 25 is fixedly connected to the connecting plate 23. An opening 17 is provided through the top surface inside the L-shaped groove 16. A pull plate 26 is fixedly installed on the end of the control plate 25 near the opening 17.

[0025] Furthermore, a slot 20 is provided at the bottom of the fixing plate 4, and a slot 21 is provided on the inner side wall of the slot 20.

[0026] Furthermore, a baffle 27 is fixedly installed on the outer wall of the pull plate 26 to prevent dust from entering the L-shaped groove 16.

[0027] Furthermore, two lifting rings 2 are symmetrically installed on the top of the mounting base 1.

[0028] Furthermore, the outer wall of the movable plate 12 is in contact with the inner wall of the storage groove 11 to prevent the movable plate 12 from rotating when the second threaded rod 14 rotates.

[0029] Furthermore, the outer wall of the insert plate 18 fits against the inner wall of the slot 20, and the outer wall of the card block 24 fits against the inner wall of the card groove 21. When the card block 24 enters the card groove 21, the insert plate 18 can be fixed in place.

[0030] The effect achieved by the entire embodiment 2 is that, during disassembly, the staff pulls the pull plate 26, and the pull plate 26 drives the locking block 24 to move through the control plate 25 and the connecting plate 23, so that the locking block 24 leaves the slot 21. At this time, the staff can remove the fixing plate 4 and pull the insert plate 18 out of the slot 20, which makes it convenient for the staff to store and improves convenience.

[0031] Working principle: In use, the operator connects the crane to the mounting base 1 through the lifting ring 2, then moves the mounting base 1 to the side of the rotor, and inserts one end of the rotor into the fixing port 5 of the bottom fixing plate 4 of the mounting base 1. Then, the motor 3 is started, and the first threaded rod 8 rotates, driving the sliding plate 9 to move, so that the other fixing plate 4 begins to move until the other end of the rotor enters the other fixing port 5. At this time, the operator rotates the two handles 15, and the handles 15 drive the second threaded rod 14 to rotate, so that the moving plate 12 moves along the storage groove 11 until the rubber pad 10 on the surface of the moving plate 12 contacts the rotor. When both ends of the rotor are clamped by the two sets of rubber pads 10 respectively, the pressure of the moving plate 12 increases the friction, so that the rotor is fixed. In this way, rotors of different specifications can be fixed. During disassembly, the staff pulls the pull plate 26, which moves the locking block 24 through the control plate 25 and the connecting plate 23, causing the locking block 24 to leave the slot 21. At this time, the staff can remove the fixing plate 4 and pull the insert plate 18 out of the slot 20, which makes it convenient for the staff to store and improves convenience.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A portable screw vacuum pump rotor hoisting tool comprising a mounting seat (1), characterized in that: The mounting seat (1) bottom is provided with a sliding groove (7), the first threaded rod (8) is rotatably installed in the sliding groove (7), the motor (3) is fixedly installed on the outer wall of the mounting seat (1), the output end of the motor (3) is fixedly connected with one end of the first threaded rod (8), the sliding plate (9) is threadedly connected with the outer wall of the first threaded rod (8), the fixed plate (4) is arranged on the bottom of the mounting seat (1) and the sliding plate (9), the fixed mouth (5) and the through hole (6) are formed through the outer wall of the fixed plate (4), the storage groove (11) is formed in the inner wall of the fixed mouth (5), the second threaded rod (14) is rotatably installed in the inner wall of the storage groove (11), one end of the second threaded rod (14) enters the through hole (6) and is fixedly installed with the handle (15), the movable plate (12) is slidably installed in the storage groove (11), the threaded groove (13) is formed in one end of the movable plate (12), the second threaded rod (14) is threadedly connected with the threaded groove (13), and the rubber pad (10) is fixedly installed on the outer wall of the movable plate (12) and the inner wall of the fixed mouth (5).

2. A convenient screw vacuum pump rotor hoisting tool according to claim 1, characterized in that: The plug plate (18) is fixedly installed on the bottom of the sliding plate (9) and the mounting seat (1), the L-shaped groove (16) is formed in the bottom of the sliding plate (9) and the mounting seat (1), the limiting groove (19) is formed in one end of the plug plate (18) close to the L-shaped groove (16), the spring (22) is fixedly installed on the inner wall of the limiting groove (19), one end of the spring (22) is fixedly installed with the connecting plate (23), the clamping block (24) is fixedly installed on one end of the connecting plate (23), one end of the clamping block (24) penetrates through the plug plate (18) and is slidably connected with the plug plate (18), the control plate (25) is slidably installed in the L-shaped groove (16), the control plate (25) is fixedly connected with the connecting plate (23) on the top, the opening (17) is formed through the inner top surface of the L-shaped groove (16), and the pull plate (26) is fixedly installed on one end of the control plate (25) close to the opening (17).

3. A convenient screw vacuum pump rotor hoisting tool according to claim 1, characterized in that: The fixed plate (4) bottom is provided with an insertion slot (20), and the insertion slot (20) is provided with a clamping groove (21) in the inner side wall.

4. A convenient screw vacuum pump rotor hoisting tool according to claim 2, characterized in that: The pull plate (26) is fixedly installed with the baffle (27).

5. A convenient screw vacuum pump rotor hoisting tool according to claim 1, characterized in that: The mounting seat (1) top is symmetrically provided with two lifting rings (2).

6. A convenient screw vacuum pump rotor hoisting tool according to claim 1, characterized in that: The movable plate (12) is attached to the inner wall of the storage groove (11).

7. A convenient screw vacuum pump rotor hoisting tool according to claim 2, characterized in that: The plug plate (18) is attached to the inner wall of the insertion slot (20), and the clamping block (24) is attached to the inner wall of the clamping groove (21).

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