A coupling dismounting device

Abstract

The application relates to the technical field of coupling dismounting equipment, in particular to a coupling dismounting device. When used, the adjusting assembly is adjusted in the vertical direction to adjust the height of the trolley, so that the drawing device is aligned with the center height of the shaft and the coupling, and the operation preparation time is shortened. The heat insulation blanket is wrapped on the outer surface of the coupling, the electromagnetic wire is wound on the outer side of the heat insulation blanket, the heating power supply provides current to the electromagnetic wire, the coupling is uniformly heated to expand, and the manpower demand is reduced. After the coupling is heated and expanded, the first fixing assembly is fixedly connected with the shaft, the second fixing assembly is fixedly connected with the coupling, the driving member drives the second fixing assembly to move along the shaft direction relative to the first fixing assembly, and the coupling is dismounted. The first sliding assembly enables the drawing device to move along the horizontal direction synchronously with the coupling, and manual intervention is not needed in the middle. The above technical features are cooperated to integrate all processes into mechanical continuous operation, so that the dismounting efficiency of the coupling is improved under the premise of saving manpower.

Description

Technical Field

[0001] This application relates to the field of coupling disassembly equipment technology, and more particularly to a coupling disassembly device. Background Technology

[0002] In nuclear power plants, large rotating equipment is the core equipment for maintaining production operations. Couplings, as key components connecting the drive shafts of critical equipment such as motors and reducers, are crucial to the reliable assembly and regular maintenance of the entire production system, directly impacting its operational safety and efficiency. Couplings used in such industrial settings are typically characterized by their enormous size (diameters exceeding 1 meter), staggering weight (several tons), and large interference fits. This makes their disassembly and assembly a persistent technical bottleneck and high-risk aspect of equipment maintenance. Currently, the disassembly and assembly of couplings for large shaft equipment, especially those in horizontal installation configurations, still faces a series of severe technical challenges, primarily in the following aspects: (1) The manual labor-dependent operation mode is inefficient and poses significant safety risks. Traditional methods primarily rely on primitive means such as impact hammering, simple screw pullers, or direct pushing with hydraulic jacks. These methods not only require 4-6 or even more experienced technicians working together, consuming enormous physical strength, but also pose extremely high safety risks. During disassembly, accidents such as tools slipping, weld cracking and spattering, and workpieces suddenly flying out frequently occur, seriously threatening the personal safety of operators. Furthermore, these problems are particularly pronounced in confined spaces and environments lacking large overhead cranes, resulting in extremely low disassembly and assembly efficiency.

[0003] (2) The heating process is crude and outdated, resulting in poor quality control. For large couplings with interference fits, thermal disassembly and assembly are essential processes. The currently commonly used flame heating method (using multiple heat guns simultaneously) has significant drawbacks. First, it's difficult to guarantee uniform heating, easily leading to excessively high localized temperatures on the workpiece, causing changes in the material's metallographic structure or generating thermal stress, and even burning damage to the coupling's working surface. Second, it requires multiple technicians working simultaneously, resulting in high labor costs.

[0004] Therefore, how to improve the disassembly efficiency of couplings while saving manpower is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] This application provides a coupling disassembly device to improve the disassembly efficiency of couplings while saving manpower.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A coupling disassembly device includes a trolley, a puller, a first sliding assembly, and a heating assembly, wherein: The first sliding component is disposed on the top of the trolley and is connected to the puller, which is capable of moving horizontally on the top of the trolley. The bottom of the trolley is equipped with an adjustment component, which can extend and retract in the vertical direction to adjust the height of the trolley. The puller includes a drive component, a first fixing component, and a second fixing component. The first fixing component is connected to a shaft, and the second fixing component is connected to a coupling. The drive component is connected between the first fixing component and the second fixing component and is used to drive the second fixing component to move axially relative to the first fixing component in order to disassemble the coupling from the shaft. The heating assembly includes a heating power supply, an electromagnetic wire, and a heat insulation blanket. The heat insulation blanket is wrapped around the outer surface of the coupling, and the electromagnetic wire is wound around the outside of the heat insulation blanket. The heating power supply is electrically connected to the electromagnetic wire and is used to provide induced heating current to the electromagnetic wire.

[0007] Optionally, in the above-mentioned coupling disassembly device, the driving component is a hydraulic cylinder, the first fixing assembly includes a mounting plate and a shaft end connector, and the second fixing assembly includes a beam and connecting bolts, wherein: The piston rod of the hydraulic cylinder is connected to the shaft end connector via the mounting plate, and the cylinder body of the hydraulic cylinder is connected to the bushing of the coupling via the connecting bolts. The shaft end connector includes a base plate and two opposing limiting blocks. The first side of the base plate is connected to the shaft end of the shaft, and the limiting blocks are disposed on the second side of the base plate. Guide grooves are provided on the opposing sides of the two limiting blocks, and the circumference of the mounting plate cooperates with the guide grooves. The mounting plate is located in the middle of the beam, and sliding holes are respectively provided on both sides of the beam along the extension direction of the beam. The sliding holes are used to cooperate with the connecting bolts.

[0008] Optionally, in the above-mentioned coupling disassembly device, the middle part of the beam includes a mounting cylinder, the piston rod of the oil cylinder passes through the interior of the mounting cylinder along the axial direction of the mounting cylinder, and a laser displacement sensor is installed on the inner wall of the mounting cylinder, the laser displacement sensor being used to detect the displacement of the cylinder body relative to the piston rod; The puller also includes a pull sensor, which is disposed outside the mounting cylinder and connected to the cylinder body of the hydraulic cylinder, for detecting the pull force.

[0009] Optionally, in the above-mentioned coupling disassembly device, the adjusting assembly includes a mounting plate, a first height adjusting part, and a second height adjusting part, wherein: One side of the mounting plate is connected to the bottom of the trolley, and the second height adjustment part is connected to the other side of the mounting plate; The first height adjustment part includes a height adjustment support rod, which passes through the mounting plate and is used to adjust the height of the trolley; The second height adjustment part includes a roller, a roller frame, a locking gear, a central screw, and a pad. The roller frame includes a vertical part and a horizontal part. The vertical part is fixed to the bottom of the trolley. The roller is mounted on the roller frame. The central screw passes through the horizontal part. The locking gear is sleeved on the outer periphery of the top of the central screw. The pad is connected to the outer periphery of the bottom of the central screw.

[0010] Optionally, in the above-mentioned coupling disassembly device, the trolley includes a fixed frame, the outer wall of the cylinder of the hydraulic cylinder is connected with an adapter nut, the first sliding assembly includes a first sliding plate, a first slide rail and a second slide rail arranged opposite to each other, a first slider for cooperating with the first slide rail, and a second slider for cooperating with the second slide rail, the bottom of the first sliding plate is connected to the first slider and the second slider, and a support frame is installed on the top of the first sliding plate, the support frame being fixedly connected to the adapter nut.

[0011] Optionally, the above-mentioned coupling disassembly device further includes a second sliding assembly. The second sliding assembly includes a second sliding plate, a third slider for cooperating with the first slide rail, and a fourth slider for cooperating with the second slide rail. The bottom of the second sliding plate is connected to the third slider and the fourth slider. A first support plate is installed on the top of the second sliding plate. The top of the first support plate includes an arcuate surface for supporting the bushing of the coupling.

[0012] Optionally, the above-mentioned coupling disassembly device further includes a third sliding assembly, which includes a third sliding plate, a fifth sliding block for cooperating with the first sliding rail, and a sixth sliding block for cooperating with the second sliding rail. The bottom of the third sliding plate is connected to the fifth and sixth sliding blocks, and the top of the third sliding plate is detachably connected to a second support plate. The top of the second support plate includes an arcuate surface for supporting the flange of the coupling. And / or, the top of the first slide plate is detachably connected to a third support plate, the top of the third support plate including an arcuate surface for supporting the flange of the coupling.

[0013] Optionally, the above-mentioned coupling disassembly device further includes a connecting rod assembly, which includes an optical shaft and three connecting seats. The bottoms of the three connecting seats are respectively fixedly connected to the first sliding plate, the second sliding plate, and the third sliding plate. The top of the connecting seat is provided with a clamping part, which is used to clamp the outer periphery of the optical shaft.

[0014] Optionally, the above-mentioned coupling disassembly device further includes an alignment component, which includes a first snap-fit ​​member, a first alignment ruler, a second snap-fit ​​member, a second alignment ruler, and a connector. A boss is provided on the side of the third slide plate away from the second slide plate. The first snap-fit ​​member and the second snap-fit ​​member are respectively snapped into the two ends of the boss. The first alignment ruler is connected to the first snap-fit ​​member, and the second alignment ruler is connected to the second snap-fit ​​member. The first alignment ruler and the second alignment ruler are arranged opposite to each other and extend upward in the vertical direction. Both the first and second snap-fit ​​components have a sliding groove, and the boss has a positioning hole. The position of the sliding groove corresponds to the position of the positioning hole, and the connector is used to connect the sliding groove and the positioning hole.

[0015] Optionally, in the above-mentioned coupling disassembly device, the heating assembly further includes a temperature probe, which is disposed between the heat insulation blanket and the coupling for detecting the temperature of the coupling; It also includes a controller, which is electrically connected to the temperature probe, the hydraulic cylinder, the laser displacement sensor and the pull-out sensor. The controller is used to control the start and stop of the heating power supply according to the temperature signal detected by the temperature probe, and to control the movement of the hydraulic cylinder according to the displacement signal detected by the laser displacement sensor and the pull-out force signal detected by the pull-out sensor.

[0016] The coupling disassembly device provided by this invention allows for easy operation. A trolley is pushed under the coupling, and the height of the trolley is adjusted vertically using an adjusting assembly to align the puller with the center of the shaft and coupling. This eliminates the need for multiple operators working with lifting equipment and manual prying for alignment, significantly reducing preparation time. A heat insulation blanket is wrapped around the outer surface of the coupling, and an electromagnetic wire is wound around the outside of the blanket. A heating power supply provides induction heating current to the electromagnetic wire, uniformly heating and expanding the coupling. This single-person operation replaces the traditional method requiring multiple people holding multiple heat guns to simultaneously heat the coupling, greatly reducing manpower requirements. After the coupling expands due to heat, the first fixing component is fixedly connected to the shaft, and the second fixing component is fixedly connected to the coupling. The driving component drives the second fixing component to move smoothly along the axial direction relative to the first fixing component. This mechanized pulling replaces the high-intensity manual labor of hammering with a sledgehammer and pushing with a simple jack. Furthermore, the pulling force is precisely applied along the axial direction, allowing disassembly to be completed in a single operation. This avoids the inefficiency of traditional methods where jamming due to force misalignment requires repeated adjustments and multiple attempts. Simultaneously, the first sliding component allows the puller to move synchronously with the coupling along the horizontal direction, eliminating the need for manual intervention to adjust its position. These combined technical features integrate the alignment, heating, and pulling processes into a continuous mechanical operation, thereby improving the disassembly efficiency of the coupling while saving manpower. Attached Figure Description

[0017] The accompanying drawings, incorporated in and forming part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort. One or more embodiments are illustrated by way of example through the corresponding images in the accompanying drawings. These exemplary descriptions do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the figures in the drawings do not constitute a limitation on scale.

[0018] Figure 1 This is a schematic diagram of the structure of the coupling disassembly device provided in the embodiments of this application during use; Figure 2 This is a schematic diagram of the overall structure of the coupling disassembly device provided in the embodiments of this application; Figure 3 This is a schematic diagram of an angle structure of the puller provided in an embodiment of this application; Figure 4 This is a schematic diagram of the puller from another angle provided in an embodiment of this application; Figure 5 This is a schematic diagram of the structure of the shaft end connector provided in the embodiments of this application; Figure 6 This is a schematic diagram of the structure of the coupling provided in the embodiments of this application; Figure 7 Provided for the embodiments of this application Figure 2 A schematic diagram of the structure of part A; Figure 8 Provided for the embodiments of this application Figure 2 A schematic diagram of the structure of part B.

[0019] Explanation of reference numerals in the attached figures: Fixed frame 100, first snap-fit ​​connector 101, second snap-fit ​​connector 102, first pair of center rulers 103, second pair of center rulers 104, boss 105, slide groove 106; Hydraulic cylinder 200, adapter nut 201; Coupling 300, bushing 301, flange 302; Thermal insulation blanket 400, electromagnetic wire 401; Mounting plate 500, straight beam 501, connecting bolt 502, sliding hole 503, laser displacement sensor 504, pull-out sensor 505; Shaft end connector 600, base plate 601, limit block 602; Mounting plate 700, height adjustment support rod 701, roller 702, roller frame 703, pad block 704, locking gear 705; First skateboard 800, second skateboard 801, third skateboard 802, first slide rail 803, second slide rail 804, support frame 805, first support plate 806, second support plate 807, third support plate 808; Optical axis 900, connector 901. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0022] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0023] See Figures 1-8 This application provides a coupling disassembly device, including a trolley, a puller, a first sliding assembly, and a heating assembly. The first sliding assembly is located on the top of the trolley and connected to the puller, which can move horizontally along the top of the trolley. An adjustment assembly is located at the bottom of the trolley and can extend and retract vertically to adjust the height of the trolley. The puller includes a drive member, a first fixing assembly, and a second fixing assembly. The first fixing assembly is connected to a shaft, and the second fixing assembly is connected to the coupling 300. The drive member is connected between the first and second fixing assemblies and drives the second fixing assembly to move axially relative to the first fixing assembly to disassemble the coupling 300 from the shaft. The heating assembly includes a heating power supply, an electromagnetic wire 401, and a heat insulation blanket 400. The heat insulation blanket 400 wraps around the outer surface of the coupling 300, and the electromagnetic wire 401 is wound around the outside of the heat insulation blanket 400. The heating power supply is electrically connected to the electromagnetic wire 401 and provides an induction heating current to the electromagnetic wire 401.

[0024] Specifically, the aforementioned heating assembly achieves uniform and rapid heating of the coupling 300 through the principle of electromagnetic induction. The insulation blanket 400 serves both to maintain heat and to prevent direct contact between the electromagnetic wire 401 and the coupling 300, thus preventing damage to the electromagnetic wire 401 due to high-temperature conduction from the coupling 300. A temperature probe is positioned between the insulation blanket 400 and the coupling 300 to monitor the temperature of the coupling 300 in real time, providing accurate feedback signals for heating control and achieving precise and controllable heating process.

[0025] The coupling disassembly device provided by this invention allows for the following operation: A trolley is pushed under the coupling 300, and the height of the trolley is adjusted vertically using an adjusting assembly to align the puller with the center of the shaft and coupling 300. This eliminates the need for multiple operators to repeatedly lift and manually pry and adjust the alignment, significantly reducing preparation time compared to traditional methods. A heat insulation blanket 400 is wrapped around the outer surface of the coupling 300, and an electromagnetic wire 401 is wound around the outside of the blanket. A heating power supply provides an induction heating current to the electromagnetic wire 401, uniformly heating and expanding the coupling 300. This single-person operation replaces the traditional method requiring multiple people holding multiple heat guns to simultaneously heat the coupling, greatly reducing manpower requirements. After the coupling 300 expands due to heat, the first fixing component is fixedly connected to the shaft, and the second fixing component is fixedly connected to the coupling 300. The driving component drives the second fixing component to move smoothly along the axial direction relative to the first fixing component. This mechanized pulling replaces the high-intensity manual labor of hammering with a sledgehammer and pushing with a simple jack. Furthermore, the pulling force is precisely applied along the axial direction, allowing disassembly to be completed in a single operation. This avoids the inefficiency of traditional methods where jamming due to force misalignment requires repeated adjustments and multiple attempts. Simultaneously, the first sliding component allows the puller to move synchronously with the coupling 300 along the horizontal direction, eliminating the need for manual intervention to adjust its position. These technical features work together to integrate the alignment, heating, and pulling processes into a continuous mechanical operation, thereby improving the disassembly efficiency of the coupling 300 while saving manpower.

[0026] To optimize the above technical solution, the driving component is a hydraulic cylinder 200. The first fixing component includes a mounting plate 500 and a shaft end connector 600, and the second fixing component includes a beam 501 and connecting bolts 502. Specifically, the piston rod of the hydraulic cylinder 200 is connected to the shaft end connector 600 via the mounting plate 500, and the cylinder body of the hydraulic cylinder 200 is connected to the bushing 301 of the coupling 300 via the connecting bolts 502. The shaft end connector 600 includes a base plate 601 and two oppositely arranged... The limiting block 602 is connected to the shaft end of the base plate 601 on the first side. The limiting block 602 is set on the second side of the base plate 601, and guide grooves are opened on the opposite sides of the two limiting blocks 602. The circumference of the mounting plate 500 is matched with the guide grooves. The mounting plate 500 is set in the middle of the beam 501. Sliding holes 503 are opened on both sides of the beam 501 along the extension direction of the beam 501. The sliding holes 503 are used to match the connecting bolts 502.

[0027] Specifically, the shaft end is provided with a threaded hole, and the first side of the base plate 601 can be fixedly connected to the shaft end with bolts. The mounting plate 500 is fixedly connected to the piston rod end of the hydraulic cylinder 200. When the mounting plate 500 is simultaneously inserted into the two guide grooves, the piston rod is axially limited and cannot move axially. The guide grooves are fitted and positioned around the circumference of the mounting plate 500, ensuring both coaxiality of the connection and ease of disassembly and assembly. The operator only needs to slide the mounting plate 500 along the guide groove to complete the connection between the piston rod and the shaft, without the need for complex hole alignment and tightening operations.

[0028] Specifically, the mounting plate 500 is located in the middle of the beam 501. Sliding holes 503, arranged along the extension direction of the beam 501, are respectively opened on both sides of the beam 501. The sliding holes 503 are used to mate with connecting bolts 502. One end of the connecting bolt 502 passes through the sliding hole 503, and the other end is screwed into the threaded hole on the end face of the bushing 301 of the coupling 300. The cylinder body of the hydraulic cylinder 200 is connected to the bushing 301 of the coupling 300 via the connecting bolts 502. The beam 501 can act as a force-transmitting beam, evenly transmitting the tension of the cylinder body of the hydraulic cylinder 200 to both sides of the bushing 301 of the coupling 300, thus ensuring uniform force distribution on the device.

[0029] Specifically, the mounting plate 500 can be a flange.

[0030] It should be noted that in practical applications, the flange 302 of the coupling 300 may be located on the side closer to the disassembly device or on the side farther away from the disassembly device. When the flange 302 of the coupling 300 is located on the side closer to the disassembly device, the two connecting bolts 502 move in a direction away from each other to simultaneously fix the flange 302 of the coupling 300. When the flange 302 of the coupling 300 is located on the side farther away from the disassembly device, the two connecting bolts 502 move in a direction closer to each other to simultaneously fix the end face of the bushing 301.

[0031] In use, first fix the base plate 601 to the shaft end. The mounting plate 500 is pre-connected to the piston rod. Slide the mounting plate 500 along the guide groove between the limiting blocks 602 to complete the axial fixation of the piston rod and shaft. Then, place the beam 501 on the end face of the bushing 301 of the coupling 300. Adjust the position of the connecting bolt 502 in the sliding hole 503 to align it with the threaded hole or the flange hole of the coupling 300. Tighten the connecting bolt 502 to complete the connection between the cylinder and the coupling 300. Start the cylinder 200; hydraulic oil enters the rodless chamber. The piston rod attempts to extend, but because the mounting plate 500 at the end of the piston rod is axially constrained by the limiting block 602, the piston rod cannot move. The reaction force pushes the cylinder body axially backward, and the cylinder body, through the beam 501 and the connecting bolt 502, pulls the coupling 300 away from the main shaft.

[0032] The engagement between the mounting plate 500 and the guide groove enables quick connection and separation of the piston rod and shaft, facilitating convenient and rapid assembly and disassembly, saving operation time, and improving the disassembly efficiency of the coupling 300. The design of the sliding hole 503 can accommodate changes in the position of the threaded holes on couplings 300 of different diameters, as well as changes in the position of the coupling 300 itself, improving the versatility and adaptability of the disassembly device.

[0033] To optimize the above technical solution, the middle part of the beam 501 includes a mounting cylinder, the piston rod of the hydraulic cylinder 200 passes through the interior of the mounting cylinder along the axial direction, and a laser displacement sensor 504 is installed on the inner wall of the mounting cylinder. The laser displacement sensor 504 is used to detect the displacement of the cylinder body relative to the piston rod. The puller also includes a pull sensor 505, which is located outside the mounting cylinder and connected to the cylinder body of the hydraulic cylinder 200, and is used to detect the pull force.

[0034] Specifically, the mounting cylinder is located in the middle of the beam 501, with its axis coinciding with the axis of the piston rod. The piston rod passes through the interior of the mounting cylinder, and there is a certain gap between the inner wall of the mounting cylinder and the outer surface of the piston rod, which provides mounting space for the laser displacement sensor 504. The laser displacement sensor 504 is fixedly mounted on the inner wall of the mounting cylinder, and its emitted laser beam irradiates the outer surface of the piston rod or the mounting plate 500. By detecting changes in the reflected light, the axial displacement of the cylinder relative to the piston rod is measured in real time. During disassembly, the piston rod remains stationary, and the cylinder moves the beam 501 and the coupling 300 together. Therefore, the displacement of the cylinder relative to the piston rod is the actual displacement of the coupling 300 pulled from the shaft, and the displacement directly reflects the disassembly progress.

[0035] Specifically, the pull-out sensor 505 is disposed outside the mounting cylinder and connected to the cylinder body of the hydraulic cylinder 200. The pull-out sensor 505 can be a strain gauge force sensor, a piezoelectric force sensor, or a hydraulic pressure sensor, etc. When a strain gauge sensor is used, the sensor can be attached to the force-bearing part of the cylinder body or the beam 501 to directly measure the actual pull-out force during the pull-out process.

[0036] During operation, after the coupling 300 is heated, the hydraulic cylinder 200 is activated for pulling. The laser displacement sensor 504 collects the cylinder's displacement data in real time, and the pulling force sensor 505 collects the pulling force data in real time. Both sensors transmit their detection signals to the controller. Operators can observe the displacement data to determine the specific distance the coupling 300 has been pulled out and observe the pulling force data to determine if the disassembly resistance is normal. When the displacement data shows that the coupling 300 has completely disengaged from the shaft, the controller automatically stops the hydraulic cylinder 200. When the pulling force data exceeds a preset safety threshold, the controller can issue an alarm or automatically switch to reverse pull-out mode to prevent equipment damage.

[0037] By arranging laser displacement sensor 504 and pull-out sensor 505, operators can accurately grasp the real-time position and remaining stroke of the coupling 300 after it is pulled out, which improves the disassembly efficiency of the coupling 300. Moreover, the sensor data can provide feedback signals for automatic control, enabling the disassembly device to achieve automated operation, thereby further improving disassembly efficiency and safety.

[0038] To optimize the above technical solution, the adjustment component includes a mounting plate 700, a first height adjustment part, and a second height adjustment part. One side of the mounting plate 700 is connected to the bottom of the trolley, and the second height adjustment part is connected to the other side of the mounting plate 700. The first height adjustment part includes a height adjustment support rod 701, which passes through the mounting plate 700 and is used to adjust the height of the trolley. The second height adjustment part includes a roller 702, a roller frame 703, a locking gear 705, a central screw, and a pad 704. The roller frame 703 includes a vertical part and a horizontal part. The vertical part is fixed to the bottom of the trolley, the roller 702 is mounted on the roller frame 703, the central screw passes through the horizontal part, the locking gear 705 is sleeved on the outer periphery of the top of the central screw, and the pad 704 is connected to the outer periphery of the bottom of the central screw.

[0039] Specifically, the height adjustment support rod 701 passes through the mounting plate 700 and can be adjusted by a thread, a worm gear, or a hydraulic cylinder. When using the thread adjustment method, the height adjustment support rod 701 has a screw structure, and the mounting plate 700 has a threaded hole that mates with it. Rotating the height adjustment support rod 701 allows it to extend or retract vertically, thereby adjusting the height of the trolley. A support foot can be installed at the lower end of the height adjustment support rod 701 to increase the contact area with the ground and improve support stability.

[0040] Specifically, the roller frame 703 is fixed to the bottom of the trolley, and the rollers 702 are mounted on the roller frame 703, allowing the trolley to move flexibly on the workshop floor via the rollers 702. The rollers 702 can be omnidirectional wheels or fixed wheels. The roller frame 703 includes a vertical part and a horizontal part. The vertical part is fixed to the bottom of the trolley, and the horizontal part is used to pass through the central screw. A locking gear 705 is fitted onto the upper end of the central screw. The locking gear 705 can be a handwheel for easy manual rotation by the operator. A pad 704 is connected to the lower end of the central screw. The bottom surface of the pad 704 can be provided with anti-slip textures or a rubber pad to increase friction with the ground. When the locking gear 705 is rotated, the central screw drives the pad 704 to move vertically. When the pad 704 moves downwards to contact the ground and lifts the trolley off the ground, the rollers 702 leave the ground, and the trolley is locked in a predetermined position, thus achieving horizontal fixation of the trolley.

[0041] In use, the operator rotates the locking gear 705 in the opposite direction, causing the pad 704 to rise off the ground and the roller 702 to touch the ground. The operator then pushes the trolley to a position approximately below the coupling 300. The height of the trolley is adjusted to near the target height by adjusting the height support rod 701. Then, the locking gear 705 is rotated to lower the pad 704 to the ground, and rotation continues until the pad 704 lifts the trolley off the ground and the roller 702 leaves the ground, achieving complete locking of the trolley in a horizontal position. The height support rod 701 can then be finely adjusted to align the center of the puller with the center of the coupling 300.

[0042] This arrangement allows the height adjustment and horizontal locking functions of the dismantling device to be independent, facilitating separate adjustments. The rollers 702 enable the trolley to move flexibly to the work position, adapting to different equipment layouts and space constraints. In space-constrained environments lacking large overhead cranes, the trolley's mobility is particularly advantageous. The height adjustment support rod 701 provides continuous fine-tuning of the height, and in conjunction with the following centering components, allows for rapid and precise centering, solving the tedious problem of repeated adjustments using wedge blocks in traditional methods, thereby improving dismantling efficiency.

[0043] To optimize the above technical solution, the trolley includes a fixed frame 100, and the outer wall of the cylinder of the hydraulic cylinder 200 is connected with an adapter nut 201. The first sliding assembly includes a first sliding plate 800, a first slide rail 803 and a second slide rail 804 arranged opposite to each other, a first slider for cooperating with the first slide rail 803, and a second slider for cooperating with the second slide rail 804. The bottom of the first sliding plate 800 is connected to the first slider and the second slider, and a support frame 805 is installed on the top of the first sliding plate 800. The support frame 805 is used to fix and connect with the adapter nut 201.

[0044] In use, when the hydraulic cylinder 200 initiates the pulling action, the cylinder body drives the coupling 300 to move backward. There is relative motion between the cylinder body and the cylinder barrel. The reaction force on the cylinder barrel is transmitted to the support frame 805 through the adapter nut 201. The support frame 805 then transmits this force to the first slider and the second slider via the first sliding plate 800. The first and second sliders slide smoothly along the first slide rail 803 and the second slide rail 804, causing the puller to move backward synchronously as the coupling 300 is pulled out.

[0045] Specifically, the fixing frame 100 can be made of channel steel, I-beam steel or rectangular steel pipe welded together. The top surface of the fixing frame 100 provides an installation reference surface for the first slide rail 803 and the second slide rail 804. The first slide rail 803 and the second slide rail 804 are arranged opposite each other along the length direction of the trolley (i.e., the axial direction of the coupling 300), with their track surfaces facing upwards and parallel to each other.

[0046] Specifically, the first sliding assembly forms a stable support structure of double rails and four sliders, providing stable support and guidance to ensure the accuracy of the puller's axial direction during movement. The first slide plate 800 can slide smoothly along the first slide rail 803 and the second slide rail 804, with the sliding direction consistent with the axial direction of the coupling 300. A support frame 805 is mounted on the top of the first slide plate 800. The top of the support frame 805 has an installation interface that mates with the adapter nut 201. Specifically, the support frame 805 can adopt a split structure, with a detachable top plate. When the top plate is connected to the main body of the support frame 805, the two form an installation interface. The standardized interface design of the adapter nut 201 and the support frame 805 facilitates the replacement and adaptation of different specifications of hydraulic cylinders 200, improving the versatility and flexibility of the device. The adapter nut 201 is connected to the outer wall of the cylinder barrel of the hydraulic cylinder 200, and can be connected by a clamp or thread. After the support frame 805 is fixedly connected to the adapter nut 201, the hydraulic cylinder 200 is installed on the trolley and can slide axially together with the first slide plate 800.

[0047] To optimize the above technical solution, the coupling disassembly device further includes a second sliding assembly. The second sliding assembly includes a second sliding plate 801, a third slider for cooperating with the first slide rail 803, and a fourth slider for cooperating with the second slide rail 804. The bottom of the second sliding plate 801 is connected to the third and fourth sliders, and the top of the second sliding plate 801 is equipped with a first support plate 806. The top of the first support plate 806 includes an arcuate surface for supporting the bushing 301 of the coupling 300.

[0048] In practical applications, large couplings typically consist of two parts: a bushing and a flange. The bushing is connected to the shaft via an interference fit, while the flange is used to connect with couplings of other equipment. The bushing is relatively long and has a fairly even weight distribution. During disassembly, as the coupling gradually detaches from the shaft, its overhang length increases and its center of gravity changes. Without effective follow-up support, the coupling will generate a sag torque under gravity. In traditional methods, operators need to manually adjust the position of the support components during disassembly, which is not only labor-intensive but also often lags behind the disassembly process, failing to provide real-time and effective support.

[0049] Specifically, the second sliding assembly shares the first slide rail 803 and the second slide rail 804 with the first sliding assembly, forming a series multi-slide layout. A first support plate 806 is mounted on the top of the second slide plate 801. The top of the first support plate 806 is machined with an arc-shaped surface, the radius of curvature of which matches the outer diameter of the bushing 301 of the coupling 300. The arc-shaped surface design increases the contact area between the support plate and the bushing 301, reducing contact stress and preventing indentations or deformation on the surface of the bushing 301 due to point or line contact. The height and position of the first support plate 806 can be adjusted according to the diameter and axial position of the bushing 301 of the coupling 300, ensuring that its arc-shaped surface fits precisely against the outer cylindrical surface of the bushing 301. During operation, as the puller moves the coupling 300 backward, the bushing 301 of the coupling 300 is always supported on the arc-shaped surface of the first support plate 806. The second sliding plate 801 slides synchronously through the third and fourth sliding plates, and the support position automatically adjusts as the coupling 300 moves, achieving seamless support throughout the entire process. When the coupling 300 is completely detached from the shaft, its entire weight is borne by the first support plate 806 and the second support plate 807 described below, ensuring the safety and stability of disassembly.

[0050] By incorporating a second sliding assembly, journal scoring or internal bore scratches caused by the coupling 300 sagging due to its own weight are effectively prevented, protecting the precision mating surfaces. Furthermore, the arc-shaped support design conforms to the shape of the coupling 300, ensuring even force distribution and preventing stress concentration. The second sliding assembly shares a slide rail with the puller, resulting in a compact overall structure and high motion synchronization, guaranteeing stability during disassembly. Moreover, operators do not need to manually adjust the support position during disassembly, reducing labor intensity and operational risks, further saving manpower.

[0051] To optimize the above technical solution, the coupling disassembly device further includes a third sliding assembly. The third sliding assembly includes a third sliding plate 802, a fifth sliding block for cooperating with the first sliding rail 803, and a sixth sliding block for cooperating with the second sliding rail 804. The bottom of the third sliding plate 802 is connected to the fifth and sixth sliding blocks, and the top of the third sliding plate 802 is detachably connected to a second support plate 807. The top of the second support plate 807 includes an arcuate surface for supporting the flange 302 of the coupling 300. And / or, the top of the first sliding plate 800 is detachably connected to a third support plate 808, and the top of the third support plate 808 includes an arcuate surface for supporting the flange 302 of the coupling 300.

[0052] Specifically, the flange 302 portion of the coupling 300 typically has a larger diameter than the bushing 301 portion, and is disc-shaped or wheel-shaped. Its outer cylindrical surface also requires effective support during disassembly. Different types of couplings 300 have varying axial positions, diameters, and widths of their flanges 302. To accommodate these variations, this application provides detachable support plates on both the first slide plate 800 and the third slide plate 802. Operators can select appropriate locations to install the support plates based on the specific structural characteristics and dimensions of the coupling 300.

[0053] Specifically, the second support plate 807 is connected to the top of the third slide plate 802, which is located behind the second slide plate 801 (on the side away from the coupling 300). When the flange 302 of the coupling 300 is far from the puller, the second support plate 807 can be used to provide support below the flange 302. When the flange 302 of the coupling 300 is close to the puller, the third support plate 808 can be used to provide support below the flange 302. The operator can choose to use either the second support plate 807 or the third support plate 808, or both simultaneously, depending on the actual situation. The detachable connection between the support plate and the slide plate can be a bolt connection or a T-slot connection, allowing the operator to quickly replace the support plate of the appropriate size according to different coupling 300 specifications.

[0054] In use, the first support plate 806 supports the outer cylindrical surface of the bushing 301 of the coupling 300, and the second support plate 807 and / or the third support plate 808 supports the outer cylindrical surface of the flange 302 of the coupling 300, forming a stable support for the coupling 300. As the puller drives the coupling 300 to move axially, the first slide plate 800, the second slide plate 801, and the third slide plate 802 slide synchronously along the first slide rail 803 and the second slide rail 804.

[0055] The design of the detachable second support plate 807 and third support plate 808 allows the disassembly device to adapt to couplings 300 of different specifications and structures. Operators can flexibly configure the support plates in multiple positions as needed, which significantly improves the versatility of the device. Moreover, the multi-point support makes the force on the coupling 300 more even and reasonable during the disassembly process, which can ensure the stability of the disassembly process and improve the disassembly efficiency.

[0056] To optimize the above technical solution, the coupling disassembly device also includes a connecting rod assembly, which includes an optical shaft 900 and three connecting seats 901. The bottom of the three connecting seats 901 is fixedly connected to the first sliding plate 800, the second sliding plate 801, and the third sliding plate 802, respectively. The top of the connecting seat 901 is provided with a clamping part, which is used to clamp the outer periphery of the optical shaft 900.

[0057] Specifically, the optical axis 900 is a slender cylindrical rod whose length covers the maximum distance between the first slide plate 800 and the third slide plate 802. The bottom of the connecting seat 901 is fixed to the upper surface of each slide plate by bolts or welding. The top of the connecting seat 901 is provided with a clamping part, which can be an open clamping structure or a split clamping structure. The clamping part is tightened by bolts to hold the optical axis 900. When all three connecting seats 901 clamp the optical axis 900, a rigid linkage is formed between the first slide plate 800, the second slide plate 801, and the third slide plate 802. The movement of any slide plate will be synchronously transmitted to the other two slide plates through the optical axis 900, making the three slide plates a unified linkage unit.

[0058] In use, after adjusting the positions of the first support plate 806, the second support plate 807, and the third support plate 808, the operator inserts the optical shaft 900 into the clamping parts of the three connecting seats 901 and tightens the clamping bolts to connect the three slide plates into one unit. During disassembly, the hydraulic cylinder 200 pulls and moves the first slide plate 800 backward. The first slide plate 800 drives the second slide plate 801 and the third slide plate 802 to move backward synchronously through the optical shaft 900, keeping the relative positions of each support plate and the coupling 300 unchanged. After disassembly, the clamping parts are released, and the three slide plates resume independent movement, making it easy to adjust their positions to accommodate different specifications of couplings 300.

[0059] The synchronous movement of the three slides ensures that the coupling 300 remains stable during disassembly. The clamping connection between the optical shaft 900 and the clamping part allows for flexible changes in the relative positions of the slides during the adjustment phase. After adjustment, the slides are locked, ensuring the flexibility and stability of the device and further improving disassembly efficiency.

[0060] To optimize the above technical solution, the coupling disassembly device also includes a centering component, which includes a first snap-fit ​​member 101, a first centering ruler 103, a second snap-fit ​​member 102, a second centering ruler 104, and a connector. A boss 105 is provided on the side of the third slide plate 802 away from the second slide plate 801. The first snap-fit ​​member 101 and the second snap-fit ​​member 102 are respectively snapped into the two ends of the boss 105. The first centering ruler 103 is connected to the first snap-fit ​​member 101, and the second centering ruler 104 is connected to the second snap-fit ​​member 102. The first centering ruler 103 and the second centering ruler 104 are arranged opposite to each other and extend upward in the vertical direction. Both the first snap-fit ​​member 101 and the second snap-fit ​​member 102 are provided with a sliding groove 106. The boss 105 is provided with a positioning hole. The position of the sliding groove 106 corresponds to the position of the positioning hole. The connector is used to connect the sliding groove 106 and the positioning hole.

[0061] Specifically, the first centering ruler 103 and the second centering ruler 104 are components for centering the shaft centerline. The first centering ruler 103 and the second centering ruler 104 are thin plate-like components with straight inner edges serving as centering references. The first centering ruler 103 and the second centering ruler 104 are arranged opposite each other, forming a certain gap, which is slightly larger than the diameter of the flange 302 or bushing 301 of the coupling 300. Under ideal centering conditions, the shaft centerline of the coupling 300 coincides with the shaft centerline of the puller. At this time, a uniform gap is maintained between the outer circles of both sides of the coupling 300 and the inner edges of the first centering ruler 103 and the second centering ruler 104, respectively. The operator can determine the magnitude and direction of the centering deviation by observing or measuring the difference in gaps on both sides.

[0062] Specifically, the first snap-fit ​​member 101 and the second snap-fit ​​member 102 are respectively snapped onto both ends of the boss 105, and their positions can be adjusted by sliding along the axial direction on the boss 105 to accommodate couplings 300 of different diameters. A sliding groove 106 is formed on the first snap-fit ​​member 101 and the second snap-fit ​​member 102, and a positioning hole is formed on the boss 105. Connecting parts (such as bolts) pass through the sliding groove 106 and the positioning hole, fixing the first snap-fit ​​member 101 and the second snap-fit ​​member 102 to predetermined positions on the boss 105. When it is necessary to adjust the centering gauge spacing, loosen the connecting parts, slide the snap-fit ​​members to the appropriate position, and then tighten the connecting parts.

[0063] In use, the operator first pushes the trolley below the coupling 300 to complete the initial height adjustment. Then, the alignment assembly is installed on the boss 105, and the positions of the first snap-fit ​​piece 101 and the second snap-fit ​​piece 102 are adjusted according to the diameter of the coupling 300, so that the first alignment ruler 103 and the second alignment ruler 104 are located on both sides of the flange 302 of the coupling 300, respectively. Observe the gap between the outer circles on both sides of the flange 302 of the coupling 300 and the inner edge of the alignment ruler. If the gaps on both sides are not equal, it indicates that there is a horizontal deviation between the puller axis and the coupling 300 axis. The operator adjusts the position of the trolley to make the gaps on both sides more equal, thus completing the alignment adjustment. After alignment, the height adjustment support rod 701 and the second height adjustment part are locked, and the alignment assembly is removed or left in place as a monitoring reference during the disassembly process.

[0064] By arranging the alignment components, visual references are provided to operators, enabling them to quickly complete preliminary alignment without the need for complex laser alignment instruments or dial indicators, thus reducing the skill requirements. Furthermore, the sliding design of the first locking member 101 and the second locking member 102 on the boss 105 allows for adjustment of the distance between the first alignment ruler 103 and the second alignment ruler 104, accommodating couplings 300 of different diameters and improving the versatility of the disassembly device.

[0065] To optimize the above technical solution, the heating assembly also includes a temperature probe, which is positioned between the insulation blanket 400 and the coupling 300 to detect the temperature of the coupling 300; it also includes a controller, which is electrically connected to the temperature probe, the hydraulic cylinder 200, the laser displacement sensor 504, and the pull-out sensor 505. The controller is used to control the start and stop of the heating power supply based on the temperature signal detected by the temperature probe, and to control the movement of the hydraulic cylinder 200 based on the displacement signal detected by the laser displacement sensor 504 and the pull-out force signal detected by the pull-out sensor 505.

[0066] Specifically, a temperature probe is positioned between the insulation blanket 400 and the coupling 300, directly contacting the outer surface of the coupling 300, enabling real-time and accurate detection of the actual temperature of the coupling 300. During the heating process, the temperature of the coupling 300 gradually increases under the influence of the induced heating current, and the temperature probe transmits the temperature signal to the controller in real time. The controller has a preset heating target temperature and temperature control program. When the temperature of the coupling 300 reaches the preset target temperature, the controller automatically cuts off the heating power or reduces the heating power, keeping the temperature of the coupling 300 within the predetermined range. This arrangement replaces the traditional method of operators judging the heating temperature based on experience, achieving precise control of the heating temperature, avoiding disassembly difficulties caused by underheating, and improving disassembly efficiency.

[0067] Specifically, the laser displacement sensor 504 detects the displacement of the cylinder relative to the piston rod, which is the distance the coupling 300 is pulled out from the shaft. The pull-out sensor 505 detects the pull-out force output by the hydraulic cylinder 200. The controller receives the displacement signal and the pull-out force signal and regulates the action of the hydraulic cylinder 200 according to the preset control strategy. In the initial disassembly stage, the controller controls the hydraulic cylinder 200 to apply force slowly with a low pull-out force, so that the coupling 300 starts smoothly and avoids impact load. In the normal disassembly stage, the controller maintains the pull-out force within the preset safety range and monitors whether the displacement speed is uniform. When the pull-out force suddenly increases or the displacement speed decreases significantly, it indicates that jamming may have occurred. The controller can automatically perform the following protective measures: reduce the pull-out speed, pause the pull-out and maintain pressure, apply reverse thrust to make the coupling 300 retract a certain distance and then re-pull, or switch to manual operation mode and issue an alarm prompt for the operator to judge and handle. When the displacement reaches the preset stroke when the coupling 300 is completely disengaged from the shaft, the controller automatically stops the cylinder 200 and completes the disassembly.

[0068] Furthermore, the controller can also have data recording and display functions. The human-machine interface can display parameters such as the current coupling temperature, pull-out force, displacement, and pull-out speed in real time, making it convenient for operators to monitor the disassembly process.

[0069] This arrangement enables closed-loop temperature control, ensuring precise heating and preventing quality fluctuations caused by human error, thus improving disassembly efficiency. Intelligent monitoring and automatic protection during the pulling process effectively prevent equipment damage and safety accidents caused by jamming, misalignment, or other abnormalities, enhancing disassembly safety. Automated operation significantly reduces the experience and skill requirements of operators, allowing personnel of varying skill levels to operate the device and complete high-quality disassembly operations, thereby saving labor costs.

[0070] It should be noted that the coupling disassembly device provided by this invention can be used in the field of coupling disassembly equipment technology or other fields. Other fields refer to any field other than the field of coupling disassembly equipment technology. The above are merely examples and do not limit the application areas of the coupling disassembly device provided by this invention.

[0071] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0072] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0073] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A coupling disassembly device, characterized in that, Includes a trolley, a puller, a first sliding assembly, and a heating assembly, wherein: The first sliding component is disposed on the top of the trolley and is connected to the puller, which is capable of moving horizontally on the top of the trolley. The bottom of the trolley is equipped with an adjustment component, which can extend and retract in the vertical direction to adjust the height of the trolley. The puller includes a drive component, a first fixing component, and a second fixing component. The first fixing component is connected to a shaft, and the second fixing component is connected to a coupling. The drive component is connected between the first fixing component and the second fixing component and is used to drive the second fixing component to move axially relative to the first fixing component in order to disassemble the coupling from the shaft. The heating assembly includes a heating power supply, an electromagnetic wire, and a heat insulation blanket. The heat insulation blanket is wrapped around the outer surface of the coupling, and the electromagnetic wire is wound around the outside of the heat insulation blanket. The heating power supply is electrically connected to the electromagnetic wire and is used to provide induced heating current to the electromagnetic wire.

2. The coupling disassembly device according to claim 1, characterized in that, The driving component is a hydraulic cylinder; the first fixing assembly includes a mounting plate and a shaft end connector; the second fixing assembly includes a beam and connecting bolts, wherein: The piston rod of the hydraulic cylinder is connected to the shaft end connector via the mounting plate, and the cylinder body of the hydraulic cylinder is connected to the bushing of the coupling via the connecting bolts. The shaft end connector includes a base plate and two opposing limiting blocks. The first side of the base plate is connected to the shaft end of the shaft, and the limiting blocks are disposed on the second side of the base plate. Guide grooves are provided on the opposing sides of the two limiting blocks, and the circumference of the mounting plate cooperates with the guide grooves. The mounting plate is located in the middle of the beam, and sliding holes are respectively provided on both sides of the beam along the extension direction of the beam. The sliding holes are used to cooperate with the connecting bolts.

3. The coupling disassembly device according to claim 2, characterized in that, The middle part of the beam includes a mounting cylinder, the piston rod of the oil cylinder passes through the interior of the mounting cylinder along the axial direction, and a laser displacement sensor is installed on the inner wall of the mounting cylinder. The laser displacement sensor is used to detect the displacement of the cylinder body relative to the piston rod. The puller also includes a pull sensor, which is disposed outside the mounting cylinder and connected to the cylinder body of the hydraulic cylinder, for detecting the pull force.

4. The coupling disassembly device according to claim 1, characterized in that, The adjustment assembly includes a mounting plate, a first height adjustment section, and a second height adjustment section, wherein: One side of the mounting plate is connected to the bottom of the trolley, and the second height adjustment part is connected to the other side of the mounting plate; The first height adjustment part includes a height adjustment support rod, which passes through the mounting plate and is used to adjust the height of the trolley; The second height adjustment part includes a roller, a roller frame, a locking gear, a central screw, and a pad. The roller frame includes a vertical part and a horizontal part. The vertical part is fixed to the bottom of the trolley. The roller is mounted on the roller frame. The central screw passes through the horizontal part. The locking gear is sleeved on the outer periphery of the top of the central screw. The pad is connected to the outer periphery of the bottom of the central screw.

5. The coupling disassembly device according to claim 2, characterized in that, The trolley includes a fixed frame, and the outer wall of the cylinder of the hydraulic cylinder is connected to an adapter nut. The first sliding assembly includes a first sliding plate, a first slide rail and a second slide rail arranged opposite to each other, a first slider for cooperating with the first slide rail, and a second slider for cooperating with the second slide rail. The bottom of the first sliding plate is connected to the first slider and the second slider, and a support frame is installed on the top of the first sliding plate. The support frame is used to be fixedly connected to the adapter nut.

6. The coupling disassembly device according to claim 5, characterized in that, It also includes a second sliding assembly, which includes a second sliding plate, a third slider for cooperating with the first slide rail, and a fourth slider for cooperating with the second slide rail. The bottom of the second sliding plate is connected to the third slider and the fourth slider, and a first support plate is mounted on the top of the second sliding plate. The top of the first support plate includes an arcuate surface for supporting the bushing of the coupling.

7. The coupling disassembly device according to claim 6, characterized in that, It also includes a third sliding assembly, which includes a third sliding plate, a fifth slider for cooperating with the first slide rail, and a sixth slider for cooperating with the second slide rail. The bottom of the third sliding plate is connected to the fifth slider and the sixth slider, and the top of the third sliding plate is detachably connected to a second support plate. The top of the second support plate includes an arcuate surface for supporting the flange of the coupling. And / or, the top of the first slide plate is detachably connected to a third support plate, the top of the third support plate including an arcuate surface for supporting the flange of the coupling.

8. The coupling disassembly device according to claim 7, characterized in that, It also includes a linkage assembly, which includes an optical axis and three connecting seats. The bottoms of the three connecting seats are respectively fixedly connected to the first sliding plate, the second sliding plate, and the third sliding plate. The top of the connecting seats is provided with a clamping part, which is used to clamp the outer periphery of the optical axis.

9. The coupling disassembly device according to claim 7, characterized in that, It also includes a centering component, which includes a first snap-fit ​​member, a first centering ruler, a second snap-fit ​​member, a second centering ruler, and a connector. The third slide plate has a boss on the side away from the second slide plate. The first snap-fit ​​member and the second snap-fit ​​member are respectively snapped into the two ends of the boss. The first centering ruler is connected to the first snap-fit ​​member, and the second centering ruler is connected to the second snap-fit ​​member. The first centering ruler and the second centering ruler are arranged opposite to each other and extend upward in the vertical direction. Both the first and second snap-fit ​​components have a sliding groove, and the boss has a positioning hole. The position of the sliding groove corresponds to the position of the positioning hole, and the connector is used to connect the sliding groove and the positioning hole.

10. The coupling disassembly device according to claim 3, characterized in that, The heating assembly also includes a temperature probe, which is disposed between the insulation blanket and the coupling for detecting the temperature of the coupling; It also includes a controller, which is electrically connected to the temperature probe, the hydraulic cylinder, the laser displacement sensor and the pull-out sensor. The controller is used to control the start and stop of the heating power supply according to the temperature signal detected by the temperature probe, and to control the movement of the hydraulic cylinder according to the displacement signal detected by the laser displacement sensor and the pull-out force signal detected by the pull-out sensor.

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