Disassembling and assembling device

Abstract

The utility model discloses a dismounting device, and solves the technical problems that the dismounting process of an oil pressure sensor in a continuous rolling unit in the prior art is relatively complicated, so that the replacement time of the oil pressure sensor is relatively long, and the maintenance cost of the continuous rolling unit is greatly increased. The dismounting and mounting device comprises a dismounting rod, a pulling rod and a lighting assembly. An inserting groove is formed in the dismounting end of the dismounting rod, and a clamping device used for clamping the oil pressure sensor is arranged in the inserting groove; the lighting assembly is arranged on the dismounting rod; and the pulling rod is arranged at the connecting end of the dismounting rod. According to the dismounting device, the dismounting rod can extend into the protection cover from the through hole blocked by the upper cover of the protection cover, the position of the oil pressure sensor is rapidly determined through the lighting assembly, the oil pressure sensor is sleeved with the inserting groove, the oil pressure sensor can be easily screwed by pulling the pulling rod, and the dismounting device is convenient to use. The oil pressure sensor can be quickly dismounted from the continuous rolling unit, so that the dismounting time of the oil pressure sensor is shortened, and the maintenance cost of the continuous rolling unit is reduced.

Description

Technical Field

[0001] This application belongs to the field of disassembly tool technology, specifically relating to a disassembly and assembly device. Background Technology

[0002] In continuous rolling mills, hydraulic pressure sensors can be used to detect the oil pressure in the system or branches within the continuous rolling mill. The principle is to transmit hydraulic oil to the detection port of the hydraulic pressure sensor through direct connection or hose connection. The hydraulic oil acts on the diaphragm of the hydraulic pressure sensor, causing the diaphragm to produce a micro displacement proportional to the medium pressure, thereby changing the resistance of the hydraulic pressure sensor. The signal is then transmitted to the PLC system for monitoring or control through electronic circuits.

[0003] Due to the advantages of low price and fast response speed, hydraulic pressure sensors are currently used to measure the upper and lower pressures in continuous rolling mills.

[0004] To measure pressure more accurately, the oil pressure sensors are installed close to the oil supply side of the main hydraulic cylinder that presses up / down. The environment here is extremely harsh, with a large amount of emulsion splashing and steam fumigation during the production process. Therefore, it is necessary to install sensor protective covers and compressed air purging devices to protect the oil pressure sensors.

[0005] Taking a traditional six-stand continuous rolling mill as an example, the hydraulic pressure sensor is installed in a protective cover inside the oil collection tray. When replacing the hydraulic pressure sensor, it is necessary to remove 8 bolts on the upper cover and 8 bolts on the lower cover of the protective cover, remove the protective cover fixing bracket, and then use a chain hoist to lift the protective cover out before the hydraulic pressure sensor can be disassembled. The whole disassembly process is complicated, which makes the troubleshooting and disassembly of the hydraulic pressure sensor time-consuming, resulting in a significant increase in the maintenance cost of the continuous rolling mill and also affecting the production capacity.

[0006] Furthermore, due to the limited space and high oil content inside the protective cover, workers must dissipate the heat from the oil collection pan and wear safety harnesses when performing disassembly, posing a risk of falls and the dropping of tools and materials. Therefore, developing a tool for quickly disassembling the hydraulic sensor is urgently needed. Summary of the Invention

[0007] To address the aforementioned technical problems, this application provides a disassembly and assembly device to solve the technical problem that the disassembly process of hydraulic pressure sensors in existing continuous rolling mills is relatively complex, resulting in long processing times for hydraulic pressure sensor faults and disassembly, which in turn significantly increases the maintenance costs of continuous rolling mills.

[0008] The technical solution adopted to achieve the purpose of this application is as follows:

[0009] A disassembly and assembly device is used to disassemble and assemble a hydraulic pressure sensor of a continuous rolling mill. The hydraulic pressure sensor has a nut section and a protrusion connected to the nut section. The two are arranged coaxially in sequence, and the radial dimension of the nut section is larger than the radial dimension of the protrusion. The device includes a disassembly rod, a lever, and an illumination assembly.

[0010] The disassembly rod has a disassembly end and a connecting end arranged opposite to each other. The disassembly end is provided with a slot for fitting and clamping the nut section of the oil pressure sensor. The slot is provided with a clamping device for clamping the protrusion of the oil pressure sensor.

[0011] The lighting assembly is mounted on the disassembly rod and is used to locate the position of the oil pressure sensor;

[0012] The lever is located at the connecting end of the disassembly rod, and the lever is set at an angle to the disassembly rod.

[0013] To better realize this application, further optimizations are made to the above structure, wherein the lighting component includes a lighting device and a power supply component;

[0014] Both the lighting device and the power supply are mounted on the disassembly rod, and the lighting device is electrically connected to the power supply.

[0015] To better realize this application, further optimizations are made to the above structure, and the lighting assembly further includes a power supply box;

[0016] The power supply box is mounted on the disassembly rod, and the power supply box is equipped with an on / off switch. The power supply component is located inside the power supply box and is electrically connected to the lighting device through the on / off switch.

[0017] To better realize this application, further optimizations are made to the above structure, wherein the disassembly rod includes a first sleeve and a second sleeve;

[0018] The second sleeve is slidably disposed in the first sleeve along the length direction of the first sleeve, and the slot is disposed at the end of the second sleeve away from the first sleeve;

[0019] The first sleeve is provided with a limiting device for restricting the sliding of the second sleeve, and the lever is detachably provided at the end of the first sleeve away from the second sleeve.

[0020] To better realize this application, further optimizations are made to the above structure, and the limiting device includes a limiting bolt;

[0021] The first sleeve has a bolt hole on its side wall, which is connected to the inner cavity of the first sleeve, and the limiting bolt is screwed into the bolt hole.

[0022] To better realize this application, further optimizations are made to the above structure, wherein the cross-sectional shape of the first sleeve and the cross-sectional shape of the second sleeve are the same polygon.

[0023] To better realize this application, further optimizations are made to the above structure, wherein the clamping device includes a spring and an elastic element;

[0024] One end of the spring is connected to the side wall of the slot, and the other end of the spring extends out from the side wall of the slot to the outside of the disassembly rod;

[0025] The elastic element is disposed between the spring piece and the side wall of the slot, and the elastic element presses the spring piece toward the center of the slot.

[0026] To better realize this application, further optimizations are made to the above structure, and the clamping device further includes an adjusting bolt;

[0027] The side wall of the disassembly rod is provided with an adjustment hole that communicates with the slot. The position of the adjustment hole corresponds to the position of the elastic element. The adjustment bolt is screwed into the adjustment hole, and the abutting end of the adjustment bolt abuts against the end of the elastic element away from the spring piece.

[0028] To better realize this application, further optimizations are made to the above structure. The side wall of the disassembly rod is provided with an inspection port for inspecting the clamping device, and the inspection port is connected to the slot.

[0029] As can be seen from the above technical solution, the disassembly rod in the disassembly and assembly device provided in this application can be inserted into the protective cover through the perforation sealed by the protective cover cover. The position of the hydraulic pressure sensor can be quickly determined by the lighting component. The disassembly rod is fitted onto the hydraulic pressure sensor through the slot on the disassembly rod. The hydraulic pressure sensor can be easily turned by turning the lever on the connecting end of the disassembly rod, so as to quickly remove the hydraulic pressure sensor from the continuous rolling mill, thereby shortening the disassembly time of the hydraulic pressure sensor and reducing the maintenance cost of the continuous rolling mill. In addition, the clamping device can clamp the protrusion of the disassembled hydraulic pressure sensor to prevent the hydraulic pressure sensor from falling. Attached Figure Description

[0030] Figure 1 This is a structural schematic diagram of a disassembly and assembly device provided in this application.

[0031] Figure 2 A connection diagram of the lighting component and the disassembly rod in a disassembly and assembly device provided in this application;

[0032] Figure 3 This is a schematic diagram of the clamping device in a disassembly and assembly device provided in this application.

[0033] Explanation of reference numerals in the attached drawings: 1-Removal rod, 11-First sleeve, 111-Limiting device, 12-Second sleeve, 121-Slot, 122-Inspection port; 2-Actuating rod; 3-Lighting assembly, 31-Lighting device, 32-Power supply box; 4-Clamping device, 41-Spring, 42-Elastic element, 43-Adjusting bolt. Detailed Implementation

[0034] To enable those skilled in the art to better understand this application, the technical solution of this application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] In the existing technology, the disassembly and assembly steps of the hydraulic pressure sensor in the continuous rolling mill are as follows:

[0036] 1) Stop the mill emulsion and open the stand roller shutter door;

[0037] 2) Use an axial flow fan to disperse the hot air and oil fumes in the oil collection pan;

[0038] 3) Maintenance personnel open the sensor protective cover in front of the rolling mill. During the opening process, 8 cover bolts need to be removed.

[0039] 4) Maintenance personnel wearing safety belts and oil-proof suits enter the oil collection pan to disassemble the protective cover bracket and the lower cover of the protective cover. During the disassembly process, 2 bracket bolts and 8 lower cover bolts need to be removed.

[0040] 5) Maintenance personnel used a wrench to remove the oil pressure sensor from the oil collection pan and replace it with a new oil pressure sensor;

[0041] 6) Reassemble the protective cover and bracket in the reverse order of disassembly.

[0042] The following problems are commonly found in the disassembly and assembly process of hydraulic sensors in the aforementioned continuous rolling mills:

[0043] Maintenance personnel need to enter a relatively enclosed space, so the oil collection pan needs to be purged of air in advance (step 2).

[0044] When removing the bolts of the lower cover and the bracket of the protective cover, due to the narrow working area and the limitations of the equipment structure, it is not possible to set up a fixed platform (a platform for maintenance personnel to stand on). The longitudinal drop in the working area is greater than 3m, so it is necessary to wear a safety belt (working at height).

[0045] The oil collection pan contains a lot of oil and sludge, and only temporary anti-slip measures can be taken in the area where maintenance personnel step, posing a significant risk of slipping and falling.

[0046] Due to space constraints, only one person can work in the work area. The tools used and the bolts disassembled are very easy to fall off. Once they fall into the oil collection pan, they will be difficult to retrieve. During the emulsion circulation process, the fallen tools and bolts will damage the pump, valves, and pipelines.

[0047] According to incomplete statistics, the maintenance time required for the hydraulic sensors in the continuous rolling mill is about 1 hour and 10 minutes, which seriously exacerbates the loss of unit capacity caused by equipment maintenance.

[0048] In response, this application provides a disassembly and assembly device for disassembling and assembling a hydraulic pressure sensor in a continuous rolling mill. The hydraulic pressure sensor has a nut section and a protrusion connected to the nut section, which are coaxially arranged sequentially. The radial dimension of the nut section is larger than the radial dimension of the protrusion. The disassembly and assembly device includes a disassembly rod 1, a lever 2, and a lighting assembly 3. See [link to relevant documentation]. Figure 1 ;in,

[0049] The disassembly rod 1 has a disassembly end and a connecting end that are arranged opposite to each other. The disassembly end of the disassembly rod 1 is provided with a slot 121 for easy fitting and locking of the oil pressure sensor.

[0050] Lighting component 3 is mounted on disassembly rod 1;

[0051] The lever 2 is located at the connecting end of the disassembly lever 1, and the lever 2 is set at an angle to the disassembly lever 1. In this embodiment, the axis of the lever 2 is perpendicular to the axis of the disassembly lever 1.

[0052] The steps for removing the hydraulic sensor using this disassembly / removal device are as follows:

[0053] a: The mill emulsion is stopped and the stand roller shutter door is opened;

[0054] b: The maintenance personnel open the top cover of the hydraulic sensor protective cover in front of the rolling mill. During the opening process, 8 top cover bolts need to be removed.

[0055] c: The maintenance personnel extend the disassembly end of the disassembly rod 1 through the perforation sealed by the protective cover to the oil pressure sensor, and quickly determine the position of the oil pressure sensor through the lighting component 3, so that the workers can fit and clamp the oil pressure sensor through the insertion hole on the disassembly rod 1. Then, the oil pressure sensor can be removed from the continuous rolling mill by turning the lever 2.

[0056] d: Place the prepared new hydraulic pressure sensor on the continuous rolling mill and tighten it using the disassembly and assembly device;

[0057] e. Reinstall the protective cover.

[0058] As can be seen from the disassembly and assembly steps of this device, using it to disassemble the hydraulic pressure sensor can save a lot of time (reducing the number of parts that need to be disassembled) and equipment (eliminating the need to use an axial flow fan to disperse the hot air and fumes in the oil collection pan). Since the space where the hydraulic pressure sensor is located is relatively dark, the position of the hydraulic pressure sensor can be quickly located through the lighting component 3, thereby improving disassembly efficiency. According to statistics, the disassembly and assembly process of the hydraulic pressure sensor using this device can be completed within 20 minutes, which can effectively reduce the maintenance cost of the continuous rolling mill. In addition, the use of this device can avoid maintenance personnel entering the oil collection pan for disassembly work, avoiding high-altitude operations and improving the safety of continuous rolling mill maintenance.

[0059] Preferably, the lever 2 mentioned above is a ratchet wrench, which can more quickly disassemble the hydraulic pressure sensor, thereby further improving the maintenance efficiency of the continuous rolling mill.

[0060] In some embodiments, the lighting component 3 described above includes a lighting device 31 and a power supply component, see [link to previous document]. Figure 2 ;in,

[0061] The lighting device 31 and the power supply are both mounted on the disassembly rod 1, and the lighting device 31 is electrically connected to the power supply. The power supply can provide the lighting device 31 with the power required for its operation. The light emitted by the lighting device 31 can illuminate the space inside the protective cover, so that maintenance personnel can locate the position of the oil pressure sensor and quickly complete the disassembly of the oil pressure sensor.

[0062] In some embodiments, the lighting component 3 further includes a power supply box 32; wherein,

[0063] The power box 32 is mounted on the disassembly rod 1. Inside the power box 32 are two sets of conductive copper sheets, and an on / off switch is mounted on it. The two sets of conductive copper sheets are electrically connected to the on / off switch.

[0064] In this embodiment, the power supply is a dry cell battery, which is detachably installed inside the power supply box 32. The two sets of conductive terminals (positive and negative poles) of the power supply are respectively in contact with two sets of conductive copper sheets. The power supply can then be electrically connected to the lighting device 31 via an on / off switch. Operating the on / off switch allows the lighting device 31 to be turned on and off. Maintenance personnel can operate the switch according to usage conditions, reducing the difficulty of replacing the oil pressure sensor. Preferably, the lighting device 31 is an LED light.

[0065] In some embodiments, the disassembly rod 1 described above includes a first sleeve 11 and a second sleeve 12; wherein,

[0066] The second sleeve 12 is slidably disposed in the first sleeve 11 along the length direction of the first sleeve 11. The number of the above-mentioned lighting devices 31 is multiple. Multiple lighting devices 31 are disposed at one end of the first sleeve 11 facing the second sleeve 12. Multiple lighting devices 31 are arranged around the circumference of the second sleeve 12. The slot 121 is disposed at one end of the second sleeve 12 away from the first sleeve 11.

[0067] The first sleeve 11 is provided with a limiting device 111 for restricting the sliding of the second sleeve 12, and the lever 2 is detachably provided at the end of the first sleeve 11 away from the second sleeve 12.

[0068] When disassembling the hydraulic pressure sensor, maintenance personnel can adjust the length of the disassembly rod 1 according to the usage and their operating habits; the specific operation method is as follows:

[0069] If the length of the disassembly rod 1 is insufficient to allow the slot 121 to be fitted onto the oil pressure sensor, the maintenance personnel can operate the limiting device 111 to release the restriction on the second sleeve 12. Then, the second sleeve 12 can be slid along the length of the first sleeve 11, that is, the second sleeve 12 can be pulled away from the lever 2 to increase the length of the disassembly rod 1. This is done until the disassembly rod 1 can be fitted onto the oil pressure sensor during use and the excess part does not cause it to be difficult to rotate. Then, the limiting device 111 is locked to restrict the position of the second sleeve 12 and prevent the relative position of the first sleeve 11 and the second sleeve 12 from changing during use.

[0070] If the length of the disassembly rod 1 is too long, making it inconvenient to disassemble the oil pressure sensor, the maintenance personnel can operate the limiting device 111 to release the restriction on the second sleeve 12. Then, the second sleeve 12 can be slid along the length direction of the first sleeve 11, that is, the second sleeve 12 can be pushed towards the lever 2 to shorten the length of the disassembly rod 1, so that it can be fitted onto the oil pressure sensor during use and the excess part will not cause it to be difficult to rotate. Then, the limiting device 111 is locked to limit the position of the second sleeve 12 and prevent the relative position of the first sleeve 11 and the second sleeve 12 from changing during use.

[0071] The aforementioned multiple lighting devices 31 can illuminate the space inside the protective cover from different angles, so as to facilitate the positioning of the oil pressure sensor by maintenance personnel.

[0072] In some embodiments, the limiting device 111 includes a limiting bolt; specifically, the side wall of the first sleeve 11 is provided with a bolt hole, the bolt hole is connected to the inner cavity of the first sleeve 11, the limiting bolt is screwed into the bolt hole, and when the limiting bolt is tightened, the abutting end of the limiting bolt will move towards the center of the first sleeve 11 and press against the side wall of the second sleeve 12 to limit the sliding of the second sleeve 12, so that the relative position of the second sleeve 12 and the first sleeve 11 is fixed.

[0073] When it is necessary to adjust the length of the disassembly rod 1, simply loosen the limiting bolt to separate the abutting end of the limiting bolt from the side wall of the second sleeve 12. At this time, maintenance personnel can easily pull or push the second sleeve 12 to change the relative position of the first sleeve 11 and the second sleeve 12, thereby changing the length of the disassembly rod 1. After the length of the disassembly rod 1 is adjusted, tighten the limiting bolt again to restrict the sliding of the second sleeve 12 and fix the length of the disassembly rod 1.

[0074] In some embodiments, the cross-sectional shape of the first sleeve 11 and the cross-sectional shape of the second sleeve 12 are the same polygon, so that when the disassembly rod 1 is turned on the oil pressure sensor, the first sleeve 11 and the second sleeve 12 will not rotate relative to each other, so as to better complete the disassembly and installation of the oil pressure sensor.

[0075] In this embodiment, the cross-sectional shape of the first sleeve 11 and the cross-sectional shape of the second sleeve 12 are both rectangular. When the second sleeve 12 is inserted into the first sleeve 11, the second sleeve 12 and the first sleeve 11 will not rotate relative to each other, making it more convenient to disassemble the oil pressure sensor.

[0076] In some embodiments, the slot 121 is provided with a clamping device 4 for clamping the oil pressure sensor. When the operator uses the slot 121 of the disassembly rod 1 to fit the nut section of the oil pressure sensor, the clamping device 4 in the slot 121 can clamp the protrusion of the oil pressure sensor to prevent the disassembled oil pressure sensor from falling out of the slot 121 and into the oil collection pan, so as to make the disassembly and assembly device more convenient to use.

[0077] In some embodiments, the clamping device 4 includes a spring sheet 41 and an elastic member 42, see [link to previous document]. Figure 3 ;in,

[0078] The spring piece 41 has an arc-shaped sheet structure. The fixed end of the spring piece 41 is connected to the side wall of the slot 121, and the movable end of the spring piece 41 extends out from the side wall of the slot 121 to the outside of the disassembly rod 1. In this embodiment, the fixed end of the spring piece 41 is located near the bottom of the slot 121, and the movable end of the spring piece 41 is located near the opening of the slot 121.

[0079] The elastic element 42 is disposed between the spring piece 41 and the side wall of the slot 121, and the elastic element 42 presses the spring piece 41 toward the center of the slot 121;

[0080] When the maintenance personnel place the slot 121 on the disassembly rod 1 onto the nut section of the oil pressure sensor, the protrusion of the oil pressure sensor will squeeze the spring 41, causing the movable end of the spring 41 to extend outward from the disassembly rod 1, so that the internal space of the slot 121 can accommodate the oil pressure sensor.

[0081] When the nut section of the hydraulic pressure sensor is fully inserted into the slot 121, the restoring force of the elastic element 42 will cause the spring piece 41 to always adhere to and press against the protrusion of the hydraulic pressure sensor, thereby clamping and restricting the hydraulic pressure sensor and preventing the disassembled hydraulic pressure sensor from falling out of the slot 121. Preferably, the clamping device 4 also includes an adjusting bolt 43; in this embodiment, there are two sets of clamping devices 4, which are arranged opposite to each other, see [reference]. Figure 3 ;

[0082] The side wall of the disassembly rod 1 is provided with an adjustment hole that communicates with the slot 121. The position of the adjustment hole corresponds to the position of the elastic element 42. The adjustment bolt 43 is screwed into the adjustment hole, and the abutting end of the adjustment bolt 43 abuts against the end of the elastic element 42 away from the spring piece 41.

[0083] When the size of the oil pressure sensor is smaller than the distance between the two clamping devices 4, that is, when the spring piece 41 in the clamping device 4 cannot clamp the oil pressure sensor, the maintenance personnel can tighten the adjusting bolt 43 to squeeze the elastic element 42, and squeeze the spring piece 41 closer to the center of the slot 121 through the elastic element 42, so that the two clamping devices 4 can clamp the oil pressure sensor.

[0084] In some embodiments, the side wall of the disassembly rod 1 is provided with an inspection port 122 that communicates with the slot 121. Maintenance personnel can use the inspection port 122 to check the status of the clamping device 4 and perform maintenance on the clamping device 4.

[0085] Through the above embodiments, this application has the following beneficial effects or advantages:

[0086] 1) The disassembly rod 1 in the disassembly device can be inserted into the protective cover through the perforation sealed by the upper cover of the protective cover, and the position of the oil pressure sensor can be quickly determined by the lighting component 3. The disassembly rod 1 is fitted onto the oil pressure sensor through the slot 121 on the disassembly rod 1. The oil pressure sensor can be easily turned by turning the lever 2 on the connecting end of the disassembly rod 1, and the oil pressure sensor can be quickly removed from the continuous rolling mill. The whole process does not require disassembling the lower cover of the protective cover and the protective cover bracket, and there is no need to use a blower to blow away the hot air and oil fumes in the oil collection pan, so as to shorten the disassembly time of the oil pressure sensor and reduce the maintenance cost of the continuous rolling mill.

[0087] 2) The disassembly rod 1 is composed of a first sleeve 11 and a second sleeve 12, so that the length of the disassembly rod 1 can be freely adjusted according to the usage, making the disassembly rod 1 suitable for disassembling oil pressure sensors in various installation positions, thereby making the application range of the disassembly and assembly device wider.

[0088] 3) The slot 121 of the second sleeve 12 is provided with a clamping device 4 that can clamp the oil pressure sensor. The clamping device 4 can prevent the disassembled oil pressure sensor from falling out of the slot 121, thereby increasing the convenience and safety of oil pressure sensor replacement.

[0089] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0090] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A disassembly and assembly device for disassembling and assembling a hydraulic pressure sensor of a continuous rolling mill, wherein the hydraulic pressure sensor has a nut section and a protrusion connected to the nut section, the two being coaxially arranged sequentially, and the radial dimension of the nut section is larger than the radial dimension of the protrusion, characterized in that... Includes a disassembly lever (1), a lever (2), and a lighting assembly (3); The disassembly rod (1) has a disassembly end and a connecting end arranged opposite to each other. The disassembly end of the disassembly rod (1) is provided with a slot (121) for fitting and clamping the nut section of the oil pressure sensor. The slot (121) is provided with a clamping device (4) for clamping the protrusion of the oil pressure sensor. The lighting assembly (3) is mounted on the disassembly rod (1) and is used to position the oil pressure sensor. The lever (2) is located at the connecting end of the disassembly rod (1), and the lever (2) is set at an angle to the disassembly rod (1).

2. The disassembly and assembly device according to claim 1, characterized in that, The lighting assembly (3) includes a lighting device (31) and a power supply component; The lighting device (31) and the power supply are both mounted on the disassembly rod (1), and the lighting device (31) is electrically connected to the power supply.

3. The disassembly and assembly device according to claim 2, characterized in that, The lighting assembly (3) also includes a power supply box (32); The power box (32) is mounted on the disassembly rod (1). The power box (32) is equipped with an on / off switch. The power supply component is mounted inside the power box (32). The power supply component is electrically connected to the lighting device (31) through the on / off switch.

4. The disassembly and assembly device according to claim 1, characterized in that, The disassembly rod (1) includes a first sleeve (11) and a second sleeve (12); The second sleeve (12) is slidably disposed in the first sleeve (11) along the length direction of the first sleeve (11), and the slot (121) is disposed at the end of the second sleeve (12) away from the first sleeve (11); The first sleeve (11) is provided with a limiting device (111) for restricting the sliding of the second sleeve (12), and the lever (2) is detachably provided at the end of the first sleeve (11) away from the second sleeve (12).

5. The disassembly and assembly device according to claim 4, characterized in that, The limiting device (111) includes a limiting bolt; The first sleeve (11) has a bolt hole on its side wall, which is connected to the inner cavity of the first sleeve (11), and the limiting bolt is screwed into the bolt hole.

6. The disassembly and assembly device according to claim 4, characterized in that, The cross-sectional shape of the first sleeve (11) and the cross-sectional shape of the second sleeve (12) are the same polygon.

7. The disassembly and assembly device according to claim 1, characterized in that, The clamping device (4) includes a spring sheet (41) and an elastic element (42); One end of the spring piece (41) is connected to the side wall of the slot (121), and the other end of the spring piece (41) extends out through the side wall of the slot (121) to the outside of the disassembly rod (1); The elastic element (42) is disposed between the spring piece (41) and the side wall of the slot (121), and the elastic element (42) presses the spring piece (41) toward the center of the slot (121).

8. The disassembly and assembly device according to claim 7, characterized in that, The clamping device (4) also includes an adjusting bolt (43); The side wall of the disassembly rod (1) is provided with an adjustment hole that communicates with the slot (121). The position of the adjustment hole corresponds to the position of the elastic element (42). The adjustment bolt (43) is screwed into the adjustment hole, and the abutting end of the adjustment bolt (43) abuts against the end of the elastic element (42) away from the spring piece (41).

9. The disassembly and assembly device according to claim 8, characterized in that, The side wall of the disassembly rod (1) is provided with an inspection port (122) for inspecting the clamping device (4), and the inspection port (122) is connected to the slot (121).

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