A rotor dismounting device with a protection function

Abstract

The utility model belongs to vacuum pump maintenance technical field, concretely relates to a rotor dismounting device with protection function, including work bench, stand, roof, jack, extruding head, placing table, fixed link, lifting platform, ring body, spring, buffer elastic net and auxiliary rod, and the device is through the jack and extruding head to the rotor main shaft and carries out the down pressure dismounting, the through -hole that the placing table surface set and the buffer elastic net that the bottom installed are used for providing the buffer protection to the main shaft that falls, and a plurality of auxiliary rods are limited to the main shaft top end, avoid the main shaft and incline or knock, the lifting platform and fixed link sliding fit, and are fixed through locking bolt, and the ring body that the lifting platform top installs can be according to the main shaft length height of flexible adjustment, spring provides elastic buffer, further enhances the dismounting stability, the installation groove that the through -hole inner wall sets up and extension plate and auxiliary rod combination realize the multilevel protection when the main shaft falls, make the main shaft keep vertical state.

Description

Technical Field

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

[0002] As a crucial component of mechanical equipment, rotors require regular maintenance or replacement after prolonged operation. When a rotor needs to be disassembled from the equipment, the rotor spindle, typically of considerable length and weight, is prone to impacts, tilting, or falling during disassembly, potentially damaging both the spindle and the equipment. Furthermore, traditional rotor disassembly methods largely rely on simple tools and manual operation, which are not only inefficient but also prone to safety hazards. For example, if the spindle falls during disassembly without cushioning, the impact could deform or damage it, affecting the rotor's subsequent use.

[0003] While some existing rotor disassembly devices can provide some support for the rotor, they usually lack an effective protective structure after the main shaft is completely separated, making the main shaft prone to tipping over under gravity. How to provide a device that can effectively protect the main shaft during rotor disassembly and prevent it from being bumped or tilted has become a technical challenge in this field. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a rotor disassembly device with protective functions. It can effectively protect the rotor main shaft during disassembly by rationally designing structures such as buffer elastic nets, auxiliary rods, and rings, while improving disassembly efficiency and safety.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A rotor disassembly device with protective function includes a workbench. Two columns are vertically arranged on the upper surface of the workbench, and a top plate is fixed to the top of the two columns. A jack is vertically arranged on the upper surface of the top plate, with the output end of the jack facing downwards and a pressing head installed at the output end. A crossbeam is installed between the two columns, parallel to the top plate. A placement platform is arranged at the center of the crossbeam. The rotor to be disassembled is vertically placed on the surface of the placement platform. The pressing head is placed above the rotor's main shaft. Fixing rods are symmetrically arranged at the bottom of the placement platform. A lifting platform is slidably installed between the two fixing rods. A locking bolt is provided on one side of the lifting platform, and the locking bolt locks and fixes the lifting platform. A ring is also slidably installed between the two fixing rods, and the ring is horizontally placed above the lifting platform. A spring is sleeved on the surface of the fixing rod, and the spring is placed between the ring and the lifting platform.

[0007] Furthermore, a buffer elastic mesh is connected to the inner side of the ring body, which cushions the falling spindle.

[0008] Furthermore, a hollow groove is provided in the center of the surface of the workbench, the hollow groove is placed directly below the placement platform, the fixing rod passes through the hollow groove, and a limit plate is provided at the bottom of the fixing rod.

[0009] Furthermore, a through hole is provided at the center of the surface of the placement platform, and the diameter of the through hole is larger than that of the disassembly spindle.

[0010] Furthermore, an installation groove is uniformly provided on the lower part of the inner wall of the through hole, and an extension plate is provided on both sides of the bottom of the installation groove.

[0011] Furthermore, an auxiliary rod is rotatably mounted between the two extension plates in the same group, the auxiliary rod extending beyond the lower surface of the placement platform.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The rotor disassembly device with protective function provided by this utility model ensures that the rotor remains vertical during disassembly through the design of the placement platform. The precise cooperation of the jack and the pressing head achieves stable downward pressure on the rotor shaft, avoiding the tilting or damage problems caused by uneven force on the shaft in traditional disassembly methods, while improving the efficiency and accuracy of disassembly.

[0014] By incorporating through-holes and a cushioning elastic mesh at the bottom of the placement platform, the spindle can be safely dropped after disassembly. The cushioning elastic mesh, made of elastic material, absorbs the impact of the spindle's fall, effectively preventing damage from impacts. The design of multiple auxiliary rods limits the spindle's top end during drop, further preventing tilting and improving spindle protection. This makes it particularly suitable for rotor disassembly applications requiring high-precision protection.

[0015] This invention achieves adaptability to rotor spindles of different sizes during disassembly through the cooperation of the ring body and the lifting platform. The lifting platform is fixed with locking bolts, allowing the ring body to be flexibly adjusted according to the spindle length. Combined with springs, it provides additional elastic cushioning, and automatically returns to its original position after being pressed down during material handling. This solves the problem of traditional equipment being unable to adapt to rotors of different specifications, while further enhancing the safety and stability during disassembly and effectively addressing the issues of spindle tilting or impact in the prior art. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present utility model;

[0017] Figure 2This is a three-dimensional structural diagram of the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of the beam and ring body installation of this utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the placement platform of this utility model;

[0020] Figure 5 This is a schematic diagram of the lifting platform and ring installation structure of this utility model;

[0021] Figure 6 For the present utility model Figure 5 A schematic diagram of the structure viewed from below;

[0022] Figure 7 For the present utility model Figure 4 A magnified structural diagram of area A.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Workbench; 11. Hollowed-out groove; 2. Column; 3. Top plate; 4. Jack; 41. Extrusion head; 5. Crossbeam; 51. Placement platform; 52. Fixing rod; 53. Limiting plate; 54. Through hole; 55. Mounting groove; 56. Extension plate; 57. Auxiliary rod; 6. Lifting platform; 61. Locking bolt; 7. Ring body; 8. Spring; 9. Buffer elastic net. Detailed Implementation

[0025] 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.

[0026] refer to Figures 1-6As shown, a rotor disassembly device with protective function includes a workbench 1. Two columns 2 are vertically mounted on the upper surface of the workbench 1. A top plate 3 is bolted to the top of the two columns 2. A jack 4 is vertically mounted on the upper surface of the top plate 3. The output end of the jack 4 extends downwards and is equipped with a pressing head 41, which is cylindrical and used to press down on the rotor shaft. A crossbeam 5 is welded between the two columns 2 and positioned parallel to the bottom of the top plate 3. A placement platform 51 is fixed to the center of the crossbeam 5 by welding or bolting. The upper surface of the placement platform 51 is flat. The rotor to be disassembled is placed vertically on the upper surface of the placement platform 51, with the pressing head 41 directly above the rotor shaft, ensuring precise pressing down on the rotor shaft when the jack 4 is in operation. Operation: Two fixed rods 52 are symmetrically welded to the bottom of the placement platform 51. A lifting platform 6 is slidably installed between the two fixed rods 52. The lifting platform 6 is tightly engaged with the fixed rods 52 through a sliding groove to achieve up and down movement. A locking bolt 61 is provided on one side of the lifting platform 6. The locking bolt 61 is connected to the lifting platform 6 through a thread to lock and fix the lifting platform 6, ensuring the stability of the lifting platform 6 at the set height. A ring body 7 is also slidably installed between the two fixed rods 52. The ring body 7 is horizontally placed above the lifting platform 6. The ring body 7 is slidably connected to the fixed rods 52 through a guide groove. The height adjustment of the ring body 7 is controlled by the lifting platform 6. A spring 8 is sleeved on the surface of the fixed rods 52. The spring 8 is placed between the ring body 7 and the lifting platform 6. It can provide elastic buffer when the ring body 7 is subjected to external force, enhance the protective performance of the device, and can return to its original position after being pressed down.

[0027] refer to Figure 3 and Figure 5 As shown, the inner side of the ring body 7 is evenly connected with a buffer elastic net 9. The buffer elastic net 9 is made of a highly elastic material and can provide effective buffer protection when the rotor spindle falls. The buffer elastic net 9 is fixedly connected to the ring body 7 by welding or riveting. The central area of ​​the buffer elastic net 9 is a densely woven mesh structure, which is used to prevent the spindle from penetrating the buffer net after falling, thereby protecting the spindle from damage.

[0028] refer to Figure 2 As shown, a hollow groove 11 is provided in the center of the surface of the workbench 1. The hollow groove 11 is directly below the placement table 51. The fixing rod 52 can pass through the hollow groove 11 to provide a longer range of motion. A limit plate 53 is provided at the bottom of the fixing rod 52. The limit plate 53 is connected to the fixing rod 52 by bolts to limit the sliding range of the fixing rod 52 and ensure the stability of the fixing rod 52.

[0029] refer to Figure 4As shown, a through hole 54 is provided at the center of the surface of the placement platform 51. The diameter of the through hole 54 is larger than the diameter of the main shaft of the rotor to be disassembled, so as to ensure that the main shaft can pass through the through hole 54 smoothly to complete the disassembly. Multiple mounting grooves 55 are evenly distributed on the lower inner wall of the through hole 54. The mounting grooves 55 are used to fix other auxiliary structures, increasing the functionality and flexibility of the device.

[0030] refer to Figure 4 and Figure 7 As shown, extension plates 56 are provided on both sides of the bottom of the two mounting slots 55 in the same group. The extension plates 56 are fixedly connected to the mounting slots 55 by rivets. An auxiliary rod 57 is rotatably installed at the end of the extension plate 56. The upper end of the auxiliary rod 57 extends beyond the lower surface of the placement platform 51. The auxiliary rod 57 remains vertical due to its own weight when it is not under force. The multiple auxiliary rods 57 are evenly distributed, which can limit the top of the main shaft when the rotor main shaft falls, prevent the main shaft from tilting, and slow down the tilting speed of the main shaft during the fall, thereby further protecting the main shaft structure of the rotor.

[0031] A clamping bolt can be installed at one end of the rotating shaft of the auxiliary rod 57. The starting force of the auxiliary rod 57 when it rotates can be controlled by tightening the bolt. This ensures that when the main shaft falls, the slight tilt of the main shaft will not cause the auxiliary rod 57 to rotate. However, when picking up materials, the tilting force can make the auxiliary rod 57 rotate, which facilitates the material picking work.

[0032] The working principle of this utility model is as follows: First, the rotor to be disassembled is placed vertically in the center of the placement platform 51, and the protruding part of the rotor main shaft is inserted into the through hole 54. Then, the position of the lifting platform 6 is adjusted according to the length of the main shaft, and the distance is adjusted to ensure that the distance between the ring body 7 and the lower surface of the placement platform 51 is equal to the length of the main shaft. Then, the jack 4 is activated to press down on the rotor main shaft, so that the main shaft passes through the through hole 54 and moves downward. The rotor body is left above the placement platform 51 to realize the disassembly work. When the rotor main shaft is completely pressed out, it will fall onto the surface of the buffer elastic net 9. Through the elasticity of the buffer elastic net 9, the main shaft will not be damaged by impact. The top is limited by multiple auxiliary rods 57. At this time, the pressed-out main shaft still remains vertical and will not be damaged by tilting. When picking up the material, the pressed-out main shaft can be held by hand and pressed down to make the buffer elastic net 9 and the ring body 7 move downward to increase the distance between the ring body 7 and the lower surface of the placement platform 51. Then, the pressed-out main shaft is tilted and taken out. During this process, the main shaft always remains vertical to effectively protect the main shaft.

[0033] When no force is applied, the auxiliary rod 57 remains vertically downward due to its own weight. Multiple auxiliary rods 57 limit the top of the falling main shaft to prevent the main shaft from tilting to one side. Even if the limiting force on the main shaft is limited, it can still slow down the tilting speed of the falling main shaft.

[0034] 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 rotor disassembly device with protective function, comprising a workbench (1), characterized in that: Two columns (2) are vertically arranged on the upper surface of the workbench (1). A top plate (3) is fixed to the top of the two columns (2). A jack (4) is vertically arranged on the upper surface of the top plate (3). The output end of the jack (4) is downward. An extrusion head (41) is installed at the output end of the jack (4). A crossbeam (5) is installed between the two columns (2). The crossbeam (5) is parallel to the bottom of the top plate (3). A placement platform (51) is set at the center of the crossbeam (5). The rotor to be disassembled is vertically placed on the surface of the placement platform (51). The extrusion head (41) The placement platform (51) is placed above the rotor spindle. The bottom of the platform is symmetrically provided with fixing rods (52). A lifting platform (6) is slidably installed between the two fixing rods (52). A locking bolt (61) is provided on one side of the lifting platform (6). The locking bolt (61) locks and fixes the lifting platform (6). A ring (7) is also slidably installed between the two fixing rods (52). The ring (7) is horizontally placed above the lifting platform (6). A spring (8) is sleeved on the surface of the fixing rod (52). The spring (8) is placed between the ring (7) and the lifting platform (6).

2. The rotor disassembly device with protective function according to claim 1, characterized in that: The inner side of the ring (7) is connected to a buffer elastic net (9), which buffers the falling main shaft.

3. The rotor disassembly device with protective function according to claim 2, characterized in that: The workbench (1) has a hollowed-out groove (11) at the center of its surface. The hollowed-out groove (11) is located directly below the placement platform (51). The fixing rod (52) passes through the hollowed-out groove (11), and a limit plate (53) is provided at the bottom of the fixing rod (52).

4. The rotor disassembly device with protective function according to claim 1, characterized in that: The placement platform (51) has a through hole (54) at the center of its surface, and the diameter of the through hole (54) is larger than that of the disassembly spindle.

5. A rotor disassembly device with protective function according to claim 4, characterized in that: The lower part of the inner wall of the through hole (54) is provided with a uniformly distributed mounting groove (55), and an extension plate (56) is provided on both sides of the bottom of the mounting groove (55).

6. A rotor disassembly device with protective function according to claim 5, characterized in that: An auxiliary rod (57) is rotatably mounted between the two extension plates (56) in the same group, the auxiliary rod (57) extending beyond the lower surface of the placement platform (51).

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