Vacuum pump rotor dismounting device

Abstract

This utility model belongs to the field of vacuum pump repair technology, specifically relating to a vacuum pump rotor disassembly device, including a workbench, a column, a top plate, a hydraulic jack, a lifting plate, and a mounting circular plate. The hydraulic jack presses down on the main shaft of the rotor to be disassembled through a pressure head. The mounting circular plate has a through hole, and the bottom of the main shaft of the rotor to be disassembled is placed in the through hole. The surface of the mounting circular plate is provided with multiple sliding grooves, and a T-shaped slider is slidably installed in the sliding groove. One side of the T-shaped slider is connected to a clamping plate, and the surface of the clamping plate is provided with anti-slip texture to improve the clamping force. The outer periphery of the mounting circular plate is provided with an annular groove, and a rotating ring is rotatably installed in the annular groove. The rotating ring drives the T-shaped slider to move through a connecting rod to adjust the position of the clamping plate. The worm gear teeth on the outer side of the rotating ring mesh with a worm, and the worm is driven by rotating a control knob. The lifting plate is height-adjustable by engaging a positioning pin with a positioning hole on the column to accommodate rotors of different sizes.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum pump repair technology, specifically relating to a vacuum pump rotor disassembly device. Background Technology

[0002] During the operation of vacuum pump equipment, the rotor, as its core component, bears the main workload of the equipment. However, due to the high temperature, high speed, and long-term use of the equipment, the rotor shaft often becomes difficult to disassemble due to adhesion or seizing. Improper methods or tools during disassembly may damage the rotor, increase equipment maintenance costs, and even pose a safety threat to operators.

[0003] Currently, common rotor disassembly methods mostly rely on manual tools such as pry bars and hammers. This method typically requires a high level of skill and can cause physical damage to the rotor surface and spindle. Some industries also use simple mechanical devices for disassembly, but these devices suffer from insufficient stability and limited versatility. For example, most existing disassembly devices lack anti-slip design, making them prone to slippage during clamping; furthermore, their clamping force and stability are insufficient to ensure the rotor remains vertical during disassembly, making it highly susceptible to displacement, thus reducing disassembly efficiency and increasing the risk of accidents.

[0004] In view of the shortcomings of the existing technology, the main technical problems faced are as follows:

[0005] 1. Insufficient clamping force and risk of slippage: Existing devices lack effective anti-slip design, making it difficult to guarantee clamping force, which can easily lead to rotor slippage or loosening;

[0006] 2. Poor disassembly stability: The rotor is difficult to keep vertical during disassembly, and it is easy to damage the device or spindle due to displacement;

[0007] 3. Low adaptability: Existing devices lack the ability to adapt to rotors of different sizes and cannot be flexibly adjusted according to rotor size, resulting in poor versatility;

[0008] 4. Lack of safety assurance: There is a lack of effective control over the overall stability of the equipment, which may pose safety hazards under high-intensity operation. Utility Model Content

[0009] To address the problems existing in the prior art, the purpose of this utility model is to provide a vacuum pump rotor disassembly device. This device can provide effective clamping, stable disassembly, and strong adaptability to improve disassembly efficiency, reduce the risk of damage, and ensure operational safety.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A vacuum pump rotor disassembly device includes a worktable and a rotor to be disassembled. Two columns are vertically arranged on the upper surface of the worktable, and the two columns are parallel to each other. A top plate is fixed to the top of the two columns. A hydraulic jack is installed at the center of the upper surface of the top plate. A pressure head is fixed to the output end of the hydraulic jack and is located below the top plate. A lifting plate is installed between the two columns and is horizontally positioned below the top plate. A mounting circular plate is provided at the center of the surface of the lifting plate and protrudes from the upper surface of the lifting plate. The rotor to be disassembled is placed on the upper surface of the mounting circular plate, and the axis of the rotor to be disassembled is vertically arranged. A through hole is opened on the surface of the mounting circular plate, and the bottom of the main shaft of the rotor to be disassembled is placed in the through hole in the center of the mounting circular plate. Three sliding grooves are evenly opened on the surface of the mounting circular plate, and a T-shaped slider is slidably installed inside the sliding grooves. A clamping plate is vertically arranged on the side of the T-shaped slider near the center of the mounting circular plate and protrudes from the upper surface of the mounting circular plate. The three clamping plates clamp and fix the rotor to be disassembled.

[0012] Furthermore, an annular groove is formed on the outer periphery of the upper surface of the mounting disc, and a rotating ring is rotatably mounted inside the annular groove.

[0013] Furthermore, three connecting rods are evenly hinged to the upper surface of the rotating ring, and the ends of the three connecting rods opposite to the rotating ring are respectively hinged to the T-shaped slider.

[0014] Furthermore, mounting plates are symmetrically arranged on the upper surface of the lifting plate, and a worm gear is rotatably mounted between the two mounting plates. A control knob is provided at one end of the worm gear and is located on the outside of the mounting plate.

[0015] Furthermore, multiple worm gear teeth are evenly arranged on the outer side of the rotating ring, and the multiple worm gear teeth are distributed in a fan shape, and the worm gear teeth mesh with the worm.

[0016] Furthermore, the T-shaped slider has anti-slip textures evenly distributed on the side surface near the rotor to be disassembled.

[0017] Furthermore, the column surface is uniformly provided with positioning holes, and multiple positioning holes are vertically distributed. The lifting plate slides on the inner side of the two columns. Both ends of the lifting plate are provided with sleeves that are adapted to the columns. Positioning pins are inserted and pulled out on the outer side of the sleeves at both ends of the lifting plate. The ends of the positioning pins are adapted to the internal dimensions of the positioning holes.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This device solves the problem of unstable rotor clamping in the prior art by setting a mounting circular plate on the lifting plate and opening a sliding groove on the surface of the mounting circular plate. A T-shaped slider is slidably installed inside the sliding groove. A clamping plate is set on the side of the T-shaped slider near the center of the mounting circular plate. The clamping plate clamps and fixes the rotor to be disassembled. In addition, the anti-slip texture design on the surface of the clamping plate further improves the clamping force, effectively prevents slippage, and improves the safety and reliability of the device.

[0020] This device converts the rotational motion of the rotating ring into the linear motion of the T-shaped slider by setting up a rotating ring and hinged connecting rods on the rotating ring. The worm gear meshes with the worm wheel teeth on the outside of the rotating ring, and the worm gear is driven to rotate by rotating the control knob, so that the rotating ring can accurately adjust the position of the clamping plate, thereby ensuring that the rotor to be disassembled remains vertical during the disassembly process. This structural design effectively solves the problem of rotor damage or disassembly failure due to displacement in existing devices, and improves the accuracy of operation and the adaptability of the device.

[0021] The hydraulic jack in the device presses down on the main shaft of the rotor to be disassembled through the pressure head at its output end; the adjustable design of the lifting plate allows the height of the circular plate mounted on the lifting plate to be adjusted according to the size of the rotor to be disassembled, ensuring that the main shaft can fall smoothly below the lifting plate; this structure effectively solves the limitation of the existing technology that the device cannot adapt to rotors of different sizes, and improves the versatility and convenience of the device.

[0022] The evenly spaced positioning holes on the column cooperate with the sleeve positioning pins at both ends of the lifting plate, allowing the lifting plate to be flexibly adjusted in height and reliably fixed during disassembly. This design not only improves the stability of the disassembly device, but also ensures the compatibility of rotors of different sizes during disassembly, further solving the problem of insufficient stability of existing devices and ensuring the safety and efficiency of operation. Attached Figure Description

[0023] Figure 1 This is a front view structural diagram of the present utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of the installation structure of the lifting plate and rotating ring of this utility model;

[0026] Figure 4 For the present utility model Figure 3 A schematic diagram of the exploded structure;

[0027] Figure 5 For the present utility model Figure 3 A magnified structural diagram of area A.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Workbench; 2. Column; 21. Positioning hole; 3. Top plate; 4. Hydraulic jack; 41. Pressure head; 5. Lifting plate; 51. Positioning pin; 52. Mounting round plate; 53. Mounting plate; 54. Worm gear; 55. Control knob; 56. Slide groove; 57. Ring groove; 6. Rotor to be disassembled; 7. T-shaped slider; 71. Clamping plate; 72. Anti-slip texture; 8. Rotary ring; 81. Worm gear teeth; 9. Connecting rod. Detailed Implementation

[0030] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0031] refer to Figures 1-4 As shown, a vacuum pump rotor disassembly device includes a workbench 1 and a rotor 6 to be disassembled. Two columns 2 are vertically arranged on the upper surface of the workbench 1, and the two columns 2 are parallel to each other. A top plate 3 is fixed to the top of the two columns 2. A hydraulic jack 4 is installed at the center of the upper surface of the top plate 3. A pressure head 41 is fixed to the output end of the hydraulic jack 4, and the pressure head 41 is positioned below the top plate 3. A lifting plate 5 is installed between the two columns 2, and the lifting plate 5 is horizontally positioned below the top plate 3. A mounting circular plate 52 is provided at the center of the surface of the lifting plate 5, protruding from the upper surface of the lifting plate 5. The rotor 6 is placed on the upper surface of the mounting circular plate 52, with the axis of the rotor 6 to be disassembled set vertically. The surface of the mounting circular plate 52 has a through hole, and the bottom of the main shaft of the rotor 6 to be disassembled is placed in the central through hole of the mounting circular plate 52 so that the main shaft can fall down smoothly through the through hole after disassembly. The surface of the mounting circular plate 52 has three evenly spaced sliding grooves 56, and a T-shaped slider 7 is slidably installed inside the sliding grooves 56. A clamping plate 71 is vertically set on the side of the T-shaped slider 7 closest to the center of the mounting circular plate 52. The clamping plate 71 extends beyond the upper surface of the mounting circular plate 52, and the three clamping plates 71 clamp and fix the rotor 6 to be disassembled.

[0032] refer to Figure 4 As shown, an annular groove 57 is formed on the outer periphery of the upper surface of the mounting circular plate 52, and a rotating ring 8 is rotatably mounted inside the annular groove 57. The rotating ring 8 is connected to the mounting circular plate 52 through the annular groove 57 to ensure a stable connection with the mounting circular plate 52 when the rotating ring 8 rotates. The size of the annular groove 57 is closely matched with the outer diameter of the rotating ring 8, so that the rotating ring 8 has good stability when rotating in the annular groove 57. When the rotating ring 8 rotates, the connecting rod 9 on it will drive the T-shaped slider 7 in the slide groove 56 to move synchronously, thereby adjusting the position of the clamping plate 71.

[0033] refer to Figure 3 and Figure 4As shown, three connecting rods 9 are evenly hinged on the upper surface of the rotating ring 8. The ends of the three connecting rods 9 away from the rotating ring 8 are respectively hinged to the T-shaped slider 7. The connecting rods 9 are connected to the rotating ring 8 and the T-shaped slider 7 through the hinge points. Their length and hinge angle are precisely designed to ensure that the rotation of the rotating ring 8 can linearly drive the T-shaped slider 7 to slide along the slide groove 56. This design allows the clamping plate 71 to move smoothly closer to or away from the rotor 6 to be disassembled, thereby realizing the reliable clamping or release of the rotor 6, so as to support the rotor 6 to be disassembled to remain vertical when subjected to pressure disassembly.

[0034] refer to Figure 3 and Figure 5 As shown, mounting plates 53 are symmetrically arranged on the upper surface of the lifting plate 5. A worm gear 54 is rotatably mounted between the two mounting plates 53. A control knob 55 is provided at one end of the worm gear 54, and the control knob 55 is located on the outside of the mounting plate 53. By rotating the control knob 55, the worm gear 54 can drive the rotating ring 8 to rotate. The worm gear 54 meshes with the worm wheel teeth 81 on the outside of the rotating ring 8. The worm wheel teeth 81 are distributed in a fan shape, so that the rotating ring 8 can achieve precise and stable rotation under the drive of the worm gear 54. This structure ensures the synchronization and reliability of the clamping plate 71 during the adjustment process, and utilizes the mutual self-locking of the worm wheel and worm gear, that is, the worm gear can drive the worm wheel to rotate, and vice versa, to achieve self-locking. In this embodiment, the worm gear 54 can drive the rotating ring 8 to rotate and maintain stability.

[0035] refer to Figure 1 and Figure 2 As shown, the surface of the column 2 is evenly provided with positioning holes 21, and multiple positioning holes 21 are vertically distributed; the lifting plate 5 slides on the inner side of the two columns 2, and both ends of the lifting plate 5 are provided with sleeves that are adapted to the columns 2. Positioning pins 51 are inserted and pulled out on the outer side of the sleeves at both ends of the lifting plate 5, and the ends of the positioning pins 51 are adapted to the internal dimensions of the positioning holes 21; by adjusting the insertion and removal position of the positioning pins 51 in the positioning holes 21, the height of the lifting plate 5 can be flexibly adjusted to adapt to different sizes of rotors 6 to be disassembled; the sliding and fixing design of the lifting plate 5 ensures stable support for the rotors 6 to be disassembled during the disassembly process, effectively improving the applicability and operational safety of the device.

[0036] The working principle of this utility model is as follows: First, the rotor 6 to be disassembled is placed vertically on the upper surface of the mounting plate 52, with the protruding bottom of the main shaft positioned within the through hole at the center of the mounting plate 52. Then, the control knob 55 is rotated to drive the worm gear 54 to rotate. Through the interaction between the worm gear 54 and the worm wheel teeth 81, the rotating ring 8 is driven to rotate. The rotation of the rotating ring 8 can simultaneously push the three T-shaped sliders 7 towards the center via the connecting rod 9 until the three clamping plates 71 can clamp the rotor 6 to be disassembled, ensuring that the rotor 6 remains vertical during disassembly. Simultaneously, the reverse self-locking of the worm wheel and worm gear ensures the stability of the rotating ring 8. The anti-slip texture 72 on the surface of the clamping plates 71 increases the clamping force on the rotor 6 to prevent slippage. After the rotor 6 is installed in place, the hydraulic jack 4 is activated to control the pressure head 41 to move downwards. Then, the pressure head 41 presses down on the main shaft of the rotor 6 to disassemble, thus achieving the disassembly of the seized rotor. During the disassembly process, the rotor 6 remains vertical to prevent displacement during pressing, improving stability during disassembly.

[0037] Furthermore, the device can adjust the height of the lifting plate 5 according to the size of the rotor 6 to be disassembled, so as to ensure that the main shaft inside the rotor 6 to be disassembled can fall smoothly below the lifting plate 5.

[0038] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A vacuum pump rotor disassembly device, comprising a workbench (1) and a rotor (6) to be disassembled, characterized in that: Two columns (2) are vertically arranged on the upper surface of the workbench (1). The two columns (2) are parallel to each other. A top plate (3) is fixed to the top of the two columns (2). A hydraulic jack (4) is installed at the center of the upper surface of the top plate (3). A pressure head (41) is fixed at the output end of the hydraulic jack (4). The pressure head (41) is placed below the top plate (3). A lifting plate (5) is installed between the two columns (2). The lifting plate (5) is horizontally placed below the top plate (3). A mounting circular plate (52) is provided at the center of the surface of the lifting plate (5). The mounting circular plate (52) protrudes from the upper surface of the lifting plate (5). The part to be disassembled... The rotor (6) is placed on the upper surface of the mounting circular plate (52). The axis of the rotor (6) to be disassembled is set vertically. The surface of the mounting circular plate (52) is provided with a through hole. The bottom of the main shaft of the rotor (6) to be disassembled is placed in the central through hole of the mounting circular plate (52). The surface of the mounting circular plate (52) is provided with three sliding grooves (56). A T-shaped slider (7) is slidably installed inside the sliding groove (56). A clamping plate (71) is vertically arranged on the side of the T-shaped slider (7) near the center of the mounting circular plate (52). The clamping plate (71) extends beyond the upper surface of the mounting circular plate (52). The three clamping plates (71) clamp and fix the rotor (6) to be disassembled.

2. The vacuum pump rotor disassembly device according to claim 1, characterized in that: The outer periphery of the upper surface of the mounting circular plate (52) is provided with an annular groove (57), and a rotating ring (8) is rotatably installed inside the annular groove (57).

3. The vacuum pump rotor disassembly device according to claim 2, characterized in that: Three connecting rods (9) are evenly hinged on the upper surface of the rotating ring (8), and the ends of the three connecting rods (9) away from the rotating ring (8) are respectively hinged on the T-shaped slider (7).

4. The vacuum pump rotor disassembly device according to claim 3, characterized in that: The upper surface of the lifting plate (5) is symmetrically provided with mounting plates (53), and a worm gear (54) is rotatably installed between the two mounting plates (53). One end of the worm gear (54) is provided with a control knob (55), which is located outside the mounting plate (53).

5. A vacuum pump rotor disassembly device according to claim 4, characterized in that: Multiple worm gear teeth (81) are evenly arranged on the outer side of the rotating ring (8), and the multiple worm gear teeth (81) are distributed in a fan shape. The worm gear teeth (81) mesh with the worm (54).

6. A vacuum pump rotor disassembly device according to claim 1, characterized in that: The T-shaped slider (7) has anti-slip textures (72) evenly distributed on the side surface near the rotor (6) to be disassembled.

7. A vacuum pump rotor disassembly device according to claim 1, characterized in that: The column (2) has uniformly opened positioning holes (21) on its surface. Multiple positioning holes (21) are vertically distributed. The lifting plate (5) slides on the inner side of the two columns (2). Both ends of the lifting plate (5) are provided with sleeves that are compatible with the columns (2). Positioning pins (51) are inserted into the outer side of the sleeves at both ends of the lifting plate (5). The end of the positioning pin (51) is compatible with the internal size of the positioning hole (21).

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