Auxiliary dismantling device for old elevator

Abstract

The invention relates to an old elevator auxiliary dismantling device, and relates to the field of elevator auxiliary devices.The old elevator auxiliary dismantling device comprises a mounting base, a supporting plate is rotationally connected to the mounting base, and a first driving mechanism used for driving the supporting plate to move in the direction close to or away from a traction wheel is arranged on the mounting base; the supporting plate is provided with a first clamping plate used for abutting against one side of the rim of the traction wheel, the side, close to the traction wheel, of the first clamping plate is rotationally provided with a second clamping plate, the first clamping plate is provided with a first driving part, and the first driving part is used for driving the second clamping plate to move in the direction away from or close to the first clamping plate. Through cooperation of all the components, center positioning and stable clamping of the traction wheel are achieved, displacement and shaking, possibly occurring in all directions, of the traction wheel are effectively restrained when a final connecting piece is dismantled, key guarantee is provided for safely and stably completing final separation operation, the manual operation risk is reduced, and the dismantling efficiency and safety are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of elevator auxiliary devices, in particular to an old elevator auxiliary dismantling device. BACKGROUND

[0002] As an indispensable vertical transportation tool in modern buildings, elevators need to be replaced or dismantled after their service life expires. The traction sheave is a core component of the elevator. Structurally, the traction sheave is usually a large casting with an inherent cavity structure in the middle, which is enclosed by the rim, spokes and hub, mainly for realizing lightweight of the component and providing space for installing the main shaft. In the overall dismantling process of the old elevator, the dismantling process of the traction sheave is complex and has high technical difficulty, which is a key link affecting the overall dismantling efficiency and safety.

[0003] Currently, the dismantling of the old elevator traction sheave mainly relies on the traditional operation mode of manual cooperation with general tools. The typical operation process includes: the construction personnel first cut off the power supply and clean the machine room operation surface, then manually remove the traction steel wire rope, dismantle the protective cover and other related components; then, find or set a lifting point in the machine room, suspend a hand chain block or a simple lifting appliance, and pull the traction machine assembly away from the base by manual traction, and then use a lever and other tools to move it horizontally to the empty land in the machine room. If the volume of the traction machine assembly is too large to pass through the passage directly, it also needs to be disassembled on site, and finally moved out by manpower through the stairs in sections.

[0004] The above existing operation mode has obvious defects: when disassembling the connection between the traction sheave and the base, the operator needs to disassemble several bolts or other fixing parts one by one. When the last few key connecting parts are removed, due to stress redistribution, the components are prone to slight displacement or shaking, causing the traction sheave to be in an unstable state at the end of the dismantling. This instability not only increases the operation difficulty, but also may cause the components to swing out of control, causing collision risk to the surrounding equipment or shaft structure. SUMMARY

[0005] In order to improve the problems existing in the above-mentioned technology, the present application provides an old elevator auxiliary dismantling device.

[0006] The old elevator auxiliary dismantling device provided by the present application adopts the following technical scheme: An old elevator auxiliary dismantling device, comprising a mounting seat, a supporting plate is rotatably connected to the mounting seat, a first driving mechanism for driving the supporting plate to move in the direction of approaching or moving away from the traction sheave is arranged on the mounting seat, a first clamping plate for abutting against one side of the rim of the traction sheave is arranged on the supporting plate, a second clamping plate is rotatably arranged on the side of the first clamping plate close to the traction sheave, a first driving member is arranged on the first clamping plate, and the first driving member is used to drive the second clamping plate to move in the direction of moving away from or approaching the first clamping plate.

[0007] By adopting the technical scheme, when the device is used to dismount the old elevator traction sheave, the mounting seat is installed at the work site (such as near the machine room base), the first driving mechanism drives the support plate to move towards the traction sheave, the movement of the support plate drives the first clamping plate to move, when the first clamping plate moves to abut against one side of the traction sheave rim, the first driving mechanism stops working; then, the first driving member works to drive the second clamping plate to move in the direction close to the traction sheave, the two sides of the traction sheave rim abut against the first clamping plate and the second clamping plate respectively, and the first clamping plate and the second clamping plate cooperate to clamp or limit the traction sheave rim. Since the second clamping plate is designed to be rotatable, when the first clamping plate moves in the direction close to the traction sheave, the second clamping plate on the first clamping plate is driven to move together, at this time, the second clamping plate can be rotated to enable the second clamping plate to avoid the traction sheave in this process; when it is necessary to clamp and fix the traction sheave, the second clamping plate is rotated again to reset, and then the first driving member drives the second clamping plate to move to clamp the traction sheave. The cooperation of the components in the above process realizes the center positioning and stable clamping of the traction sheave, effectively suppresses the displacement and shaking of the traction sheave in all directions when the last connecting piece is dismounted, provides a key guarantee for safely and stably completing the final separation operation, reduces the risk of manual operation, improves the dismounting efficiency and safety, and after the dismounting is completed, the device can directly be used as a hoisting clamp to move the traction sheave as a whole, realizing the integration of the supporting and transferring functions.

[0008] Optionally, an auxiliary seat is slidably arranged between the first clamping plate and the second clamping plate, and a second driving member is arranged on the first clamping plate and used to drive the auxiliary seat to move in the direction close to the core of the traction sheave, and the sliding direction of the auxiliary seat is perpendicular to the movement direction of the second clamping plate driven by the first driving member.

[0009] By adopting the technical scheme, when the first driving member moves the second clamping plate to the vicinity of the traction sheave rim through the first clamping plate, the second driving member can be independently started to drive the auxiliary seat to slide in the direction perpendicular to the main movement direction of the second clamping plate (i.e. towards the center of the traction sheave); the movement in this perpendicular direction enables the auxiliary seat to extend and abut against the end face or the inner structure of the traction sheave rim, so that an auxiliary supporting force perpendicular to the clamping face and pointing to the inside of the rim is provided before the second clamping plate clamps the rim from the side, effectively offsetting the tendency of the second clamping plate to warp or deflect in the final locking process, enhancing the stability and rigidity of clamping, especially suitable for the working conditions where the rim is wide or the structure is easy to deform, and ensuring the reliability of the clamping system under multi-directional stress.

[0010] Optionally, the support plate is slidably connected with a sliding seat, a sliding direction of the sliding seat is directed to a wheel core of the traction sheave, the support plate is further provided with a second driving mechanism for driving the sliding seat to slide, and the first clamping plate is arranged on the sliding seat; the anti-skid pad arranged on a side of the auxiliary seat facing the traction sheave is provided with a wire slot corresponding to the steel wire rope on the traction sheave.

[0011] By adopting the technical scheme, the device drives the sliding seat to move along the direction directed to the wheel core of the traction sheave by the second driving mechanism, drives the first clamping plate and the auxiliary seat arranged thereon to move close to the traction sheave, controls the sliding seat to move to a predetermined position when the steel wire rope has not been removed, and makes the anti-skid pad on the auxiliary seat contact the steel wire rope, so that the wire slot on the anti-skid pad gradually receives and clamps the corresponding steel wire rope under the action of the auxiliary seat continuously moving close, thereby effectively inhibiting the swing of the remaining steel wire ropes when a single steel wire rope is removed subsequently, and significantly improving the safety of the removal process; after all the steel wire ropes are removed, the sliding seat can continue to drive the first clamping plate to move to abut against the rim, and then perform subsequent clamping operation, thereby realizing the coherent and safe operation of the same device in different operation stages (steel wire rope stabilization and traction sheave clamping).

[0012] Optionally, an extension direction of the wire slot is consistent with a direction in which the steel wire rope of the traction sheave is pulled apart, and a cross section of the wire slot gradually increases along the extension direction.

[0013] By adopting the technical scheme, the cross section of the wire slot is designed to gradually increase from top to bottom, so that dynamic adaptation and stable constraint of the steel wire rope in a suspended state are realized, and the steel wire rope on the traction sheave naturally presents a suspended state from top to bottom due to its weight and tension in the removal operation, so that the wire slot is designed according to the shape of the steel wire rope to realize more accurate cooperation with the steel wire rope.

[0014] Optionally, the second driving member includes a first driving seat arranged between the first clamping plate and the second clamping plate, the first driving seat is provided with an extension part, an extension direction of the extension part is directed to the wheel core of the traction sheave, and the auxiliary seat is arranged on the extension part.

[0015] By adopting the technical scheme, when it is necessary to provide auxiliary support towards the wheel core of the traction sheave, the extension part operates to directly push the auxiliary seat to stably move along the vertical direction and accurately abut against the end face or the inner side of the rim of the traction sheave; this integrated driving mode not only has compact structure and saves external installation space, so that the profile of the entire clamping device is more compact and interference with surrounding equipment in a narrow machine room environment is avoided, but also the power source (the first driving seat) is directly arranged near the moving part (the auxiliary seat), the transmission chain is short, the force transmission efficiency is high, and the response is rapid, so that the timeliness and accuracy of the auxiliary support action are ensured.

[0016] Optionally, the first driving member comprises a first motor arranged on the first clamping plate, an output shaft of the first motor is coaxially fixedly connected with a first screw rod, a screw nut of the first screw rod is fixedly connected with a second driving base, the second driving base is rotationally connected with the second clamping plate, and the first clamping plate is provided with a guide portion for guiding the second driving base to move along the axial direction of the first screw rod; the second driving base is provided with a positioning structure for limiting the rotation of the second clamping plate.

[0017] By adopting the above technical scheme, the first driving member is specifically a precision transmission system composed of the first motor, the first screw rod, the second driving base and the guide portion, and the positioning structure is arranged on the second driving base, so that the precise driving of the second clamping plate and the integration of the attitude control are realized. The working process is as follows: the first motor drives the first screw rod to rotate, drives the second driving base fixedly connected with the screw nut to move accurately and linearly along the direction guided by the guide portion, and thus pushes or pulls the second clamping plate through the rotation connection point to realize linear opening and closing; in this process, the positioning structure arranged on the second driving base can lock the rotation angle of the second clamping plate, when the second clamping plate needs to be purely linearly clamped, the rotation angle is fixed through the positioning structure, so as to ensure that the linear power generated by the driving base is completely converted into effective clamping force and will not be wasted due to part shaking; when the second clamping plate needs to be rotated to avoid obstacles, the locking can be released to manually adjust the angle. This design makes one driving system be able to flexibly adapt to the two working conditions of the positioning before clamping and the stable linear motion during clamping, and improves the functional integration and operation efficiency of the device.

[0018] Optionally, the positioning structure comprises a threaded hole opened on the second driving base, at least two through holes capable of being coaxially aligned with the threaded hole are opened on the second clamping plate, a positioning rod is arranged in any through hole, and a threaded segment capable of being threadedly matched with the threaded hole is arranged on the positioning rod; when at least one through hole is coaxially aligned with the threaded hole, the second clamping plate is rotated to a first position opposite to the first clamping plate; when at least one through hole is coaxially aligned with the threaded hole, the second clamping plate is rotated to a second position for avoiding the traction wheel.

[0019] By adopting the technical scheme, the positioning structure is specifically a mechanical interlocking scheme of setting a threaded hole on the second driving base, setting at least two through holes on the second clamping plate, and screwing the positioning rod, thereby realizing quick and reliable positioning of multiple working positions of the second clamping plate. The working process is as follows: when the operator manually rotates the second clamping plate to a preset "first position" (parallel to the first clamping plate for clamping), a specific through hole on the second clamping plate is aligned with the threaded hole on the second driving base, at this time, the positioning rod is inserted through the through hole and the threaded segment is screwed into the threaded hole, and the second clamping plate is rigidly locked in the clamping posture by using the self-locking property of the threaded pair; when it is necessary to avoid, the second clamping plate is rotated to the "second position", at this time, another through hole is aligned with the same threaded hole, and locking can be achieved by screwing in the positioning rod; the design of "one hole positioning" makes each working position have corresponding and accurate mechanical limiting, the positioning is reliable, and locking and releasing can be achieved by simple screwing operation without the need for additional tools, which not only ensures the absolute stability of the second clamping plate in the working posture, but also takes into account the convenience of angle adjustment.

[0020] Optionally, the first clamping plate is provided with a connecting portion connectable with the second clamping plate, and the connecting portion is configured to pass through the cavity of the traction wheel.

[0021] By adopting the technical scheme, when the first driving member drives the second clamping plate to move, so that the second clamping plate and the first clamping plate jointly clamp the rim of the traction wheel from both sides, the connecting portion is enabled to pass through the cavity of the traction wheel and connect with the second clamping plate, thereby establishing a rigid connection between the first clamping plate and the second clamping plate across the cavity; this connection converts the clamping force originally mainly acting on the two sides of the rim into a closed frame structure surrounding the rim, greatly enhancing the overall integrity and stability of clamping, effectively preventing possible relative slipping or loosening between the clamping plate and the rim when lifting or subjected to complex external forces, and significantly improving the safety and reliability of the device during the process of disassembling and subsequent transporting the traction wheel.

[0022] Optionally, a first waist-shaped hole is formed in the first clamping plate, a second waist-shaped hole is formed in the second clamping plate, and the connecting portion is a connecting bolt synchronously inserted into the first waist-shaped hole and the second waist-shaped hole.

[0023] By adopting the above technical solution, after the first clamping plate and the second clamping plate initially clamp the rim of the traction wheel, the connecting bolt, as the connecting part, passes through the first oblong hole on the first clamping plate and the second oblong hole on the second clamping plate in sequence, and is locked with a nut. During this process, the first oblong hole and the second oblong hole provide the connecting bolt with the position tolerance adjustment space in the plane of the clamping plate, allowing for fine adjustment according to the actual position of the traction wheel cavity, ensuring that the connecting bolt can pass through the cavity smoothly. After locking, the connecting bolt and the two clamping plates form a rigid whole, distributing the clamping force evenly, and preventing the bolt from moving between the bolt and the hole wall through the limiting effect of the oblong hole. Thus, while using the cavity for auxiliary fixation, it realizes the adaptive adjustment of traction wheels of different sizes, enhancing the stability of the connection and the versatility of the device.

[0024] Optionally, the first drive mechanism includes a second motor disposed on the mounting base, the output shaft of the second motor being arranged radially parallel to the traction sheave, and the output shaft of the second motor being coaxially and fixedly connected to the rotating shaft of the support plate.

[0025] By adopting the above technical solution, when it is necessary to adjust the overall position of the device to align with the traction sheave, the second motor starts, and its output shaft directly drives the rotating shaft of the support plate to rotate synchronously, thereby driving the entire clamping unit (including the support plate, the first clamping plate, the second clamping plate, etc.) to rotate smoothly around the fulcrum on the mounting base. This coaxial direct drive method eliminates intermediate transmission links such as gears and belts, which not only reduces structural complexity and space occupation, but also makes the device more compact and adaptable to the narrow space of the machine room. The angular displacement of the support plate can be precisely controlled by the motor, and the movement process is smooth and shock-free. This allows the front clamping plate to be accurately and smoothly swung to the best alignment position with the traction sheave rim, laying a precise positioning foundation for subsequent reliable clamping. At the same time, direct drive also reduces energy loss and improves transmission efficiency.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. Through the cooperation of the first clamping plate, the rotatable second clamping plate and the drive mechanism, the traction wheel is safely and stably clamped, effectively avoiding the risk of component shaking caused by stress release at the end of dismantling, and improving the safety and efficiency of the operation; 2. The sliding seat design with anti-slip pads with specific grooves allows the device to stabilize the wire rope before clamping the traction sheave, achieving functional integration of different operation stages, a smooth process, and high safety. 3. By utilizing the inherent cavity structure of the traction sheave, the first and second clamping plates are connected across the cavity through the connecting part, forming a closed rigid clamping frame, which greatly improves the integrity and safety during the hoisting process. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an auxiliary demolition device for an old elevator according to an embodiment of this application; Figure 2 yes Figure 1 Enlarged view of section A; Figure 3 This is a schematic diagram of the second clamping plate rotating to the "second position" in an embodiment of this application; Figure 4 This is a cross-sectional schematic diagram of the cooperation between the second clamping plate and the fixing block in an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Mounting base; 2. Support plate; 3. First drive mechanism; 31. Second motor; 4. First clamping plate; 5. Second clamping plate; 6. First drive component; 61. First motor; 62. First lead screw; 7. Auxiliary seat; 8. First telescopic rod; 9. Sliding seat; 10. Second drive mechanism; 101. Third motor; 102. Second lead screw; 11. Anti-slip pad; 12. Wire groove; 13. Drive base; 14. Telescopic part; 141. Second telescopic rod; 15. Guide part; 151. Guide rod; 16. Through hole; 17. Positioning rod; 18. Connecting part; 181. Connecting bolt; 19. First oblong hole; 20. Second oblong hole; 21. Hydraulic support foot; 22. Mounting plate; 23. Round hole; 24. Fixing block; 241. Horizontal part; 242. Vertical part. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0030] This application discloses an auxiliary device for dismantling an old elevator. (Refer to...) Figures 1-4 The old elevator auxiliary dismantling device includes a mounting base 1. The mounting base 1 is provided with a first drive mechanism 3 for driving a support plate 2 to move in a direction close to or away from the traction sheave. The support plate 2 is provided with a first clamping plate 4 for abutting against one side of the traction sheave rim. A second clamping plate 5 is rotatably provided on the side of the first clamping plate 4 close to the traction sheave. A first drive member 6 is provided on the first clamping plate 4 for driving the second clamping plate 5 to move in a direction close to or away from the first clamping plate 4.

[0031] Reference Figures 1-4The mounting base 1 has four hydraulic support legs 21 at its bottom. The operation of the hydraulic support legs 21 drives the mounting base 1 to rise and fall. Each hydraulic support leg 21 has a mounting plate 22 at its bottom, which can be fixed to a solid ground near the traction machine base in the elevator machine room by anchor bolts. A rotating shaft is mounted on the mounting base 1 via a bearing seat, and the support plate 2 is fixedly connected to the rotating shaft, allowing the support plate 2 to rotate in the horizontal plane around the axis of the rotating shaft. The first drive mechanism 3 includes a second motor 31 fixedly mounted on the mounting base 1. The output shaft of the second motor 31 is coaxially fixedly connected to the rotating shaft of the support plate 2 via a coupling. When the second motor 31 starts, it can directly drive the rotating shaft and the support plate 2 to rotate as a whole, thereby causing the clamping unit at the front end of the support plate 2 (formed by the first clamping plate 4 and the second clamping plate 5) to move toward or away from the traction sheave, achieving coarse positioning, and allowing the support plate 2 to rotate to a position parallel to the surface of the traction sheave.

[0032] In this embodiment, in order to further improve the stability during the removal of the traction wheel, the first clamping plate 4 and the corresponding components thereon are provided in two sets, with the two sets of components arranged opposite to each other, thereby clamping and securing both ends of the traction wheel; in other embodiments, the first clamping plate 4 and the corresponding components thereon may be provided in only one set, or more sets may be provided to achieve better results.

[0033] Reference Figures 1-4 A sliding seat 9 is slidably connected to the support plate 2, and the sliding direction of the sliding seat 9 is precisely pointed to the wheel core of the traction sheave. The support plate 2 is also equipped with a second drive mechanism 10 for driving the sliding seat 9 to slide. The second drive mechanism 10 includes a third motor 101 located in the middle of the support plate 2. The third motor 101 is a dual-output shaft motor, and a second lead screw 102 is coaxially fixedly connected to each of the two output shafts of the third motor 101. The threads of the two second lead screws 102 are opposite in direction and are arranged radially along the traction sheave. A sliding seat 9 is fixed to the lead screw nut of each of the two second lead screws 102. Two first clamping plates 4 are respectively set on the corresponding sliding seats 9. The support plate 2 has a mating groove for the sliding seats 9 to slide and for limiting the sliding direction of the sliding seats 9. The operation of the third motor 101 drives the two second lead screws 102 to rotate, thereby causing the two sliding seats 9 to move in directions that are moving away from or towards each other.

[0034] In this embodiment of the application, since the first clamping plate 4 and the corresponding components thereon are both provided in two sets, the sliding seat 9 is also provided in two sets accordingly.

[0035] In this embodiment of the application, in order to further improve the adaptability of the first clamping plate 4, an electrically controlled first telescopic rod 8 is provided on the sliding seat 9. The first telescopic rod 8 is perpendicular to the support plate 2. The fixed end of the first telescopic rod 8 is fixedly connected to the sliding seat 9, and the movable end of the first telescopic rod 8 is fixedly connected to the first clamping plate 4. The first clamping plate 4 can be further driven to move away from or towards the traction wheel by the contraction and retraction of the first telescopic rod 8.

[0036] Reference Figures 1-4 An auxiliary seat 7 is slidably disposed between the first clamping plate 4 and the second clamping plate 5. A second driving member is provided on the first clamping plate 4 for driving the auxiliary seat 7 to move in the direction close to the wheel core of the traction sheave. The sliding direction of the auxiliary seat 7 is perpendicular to the movement direction of the first driving member 6 driving the second clamping plate 5. The second driving member includes a first driving seat disposed between the first clamping plate 4 and the second clamping plate 5. A telescopic part 14 is provided on the first driving seat. The telescopic direction of the telescopic part 14 points towards the wheel core of the traction sheave. The auxiliary seat 7 is disposed on the telescopic part 14.

[0037] In this embodiment, the telescopic part 14 is selected as an electrically controlled second telescopic rod 141. The second telescopic rod 141 is parallel to the second lead screw 102. The fixed end of the second telescopic rod 141 is fixedly connected to the extension of the first drive seat, and the movable end of the second telescopic rod 141 is fixedly connected to the extension of the auxiliary seat 7. The auxiliary seat 7 is moved by the telescopic movement of the second telescopic rod 141.

[0038] Reference Figures 1-4 An anti-slip pad 11 is provided on the side of the auxiliary seat 7 facing the traction sheave. The anti-slip pad 11 is made of rubber with a high coefficient of friction, and grooves 12 corresponding to the wire ropes on the traction sheave are formed on the anti-slip pad 11. The extension direction of the grooves 12 is consistent with the direction in which the wire ropes on the traction sheave are pulled apart, and the cross-section of the grooves 12 gradually increases along the extension direction. When the wire ropes have not yet been removed, the sliding seat 9 is moved to a predetermined position so that the anti-slip pad 11 on the auxiliary seat 7 contacts the wire ropes. At this time, the grooves 12 on the anti-slip pad 11, under the continuous movement of the auxiliary seat 7, will take in and clamp the corresponding wire ropes one by one. Thus, when removing a single wire rope, the constraint of the grooves 12 effectively suppresses the swaying of the remaining wire ropes, significantly improving the safety of the removal process. After all the wire ropes have been removed, the sliding seat 9 can continue to drive the first clamping plate 4 forward to abut against the wheel flange, and then perform subsequent clamping operations.

[0039] Reference Figures 1-4The first driving component 6 includes a first motor 61 mounted on a first clamping plate 4. The output shaft of the first motor 61 is coaxially and fixedly connected to a first lead screw 62, which is perpendicular to the first clamping plate 4. A second driving seat is fixedly connected to the lead screw nut of the first lead screw 62. The second driving seat is rotatably connected to a second clamping plate 5. The first clamping plate 4 has a guide portion 15 for guiding the second driving seat to move axially along the first lead screw 62. The second clamping plate 5 has a circular hole 23 coaxial with the first lead screw 62, the diameter of which is larger than the diameter of the cross-section of the first lead screw 62. The second driving seat has a positioning structure for limiting the rotation of the second clamping plate 5. The first motor 61 drives the first lead screw 62 to rotate, causing the second driving seat, fixed to the lead screw nut, to move precisely in a straight line along the direction guided by the guide portion 15. This allows the second clamping plate 5 to open or close linearly by rotating the connection point. During this process, the positioning structure on the second driving seat can lock the rotation angle of the second clamping plate 5.

[0040] In this embodiment, the movement of the second clamping plate 5 relative to the length of the first lead screw 62 is achieved by pushing or pulling the second drive seat. A ring-shaped fixing block 24 is fixed to one side of the second clamping plate 5 relative to the second drive seat. The cross-section of the fixing block 24 along the axial section of the first lead screw 62 is inverted T-shaped (having a vertical part 242 and a horizontal part 241, one end of the vertical part 242 is fixed to the middle of the horizontal part 241, and the other end is fixed to the second clamping plate 5). The second drive seat has an annular groove that matches the shape of the fixing block 24. When the second clamping plate 5 rotates, the fixing block 24 rotates in the annular groove. When the second drive seat moves linearly, the second drive seat pushes the second clamping plate 5 or pulls the horizontal part 241 to move the second clamping plate 5.

[0041] Reference Figures 1-4 The positioning structure includes a threaded hole (not shown in the figure) on the second drive seat, and two through holes 16 on the second clamping plate 5 that can be coaxially aligned with the threaded hole. A positioning rod 17 is inserted through either through hole 16, and the positioning rod 17 is provided with a threaded section (not shown in the figure) that can be threadedly engaged with the threaded hole. When one through hole 16 is coaxially aligned with the threaded hole, the second clamping plate 5 rotates to a first position opposite to the first clamping plate 4. When the other through hole 16 is coaxially aligned with the threaded hole, the second clamping plate 5 rotates to a second position to avoid the traction sheave. When the second clamping plate 5 is rotated to the preset "first position" (parallel to the first clamping plate 4 for clamping), a specific through hole 16 on the second clamping plate 5 will align with the threaded hole on the second drive seat. At this time, the positioning rod 17 is passed through the through hole 16 and its threaded section is screwed into the threaded hole to tighten it. The self-locking property of the threaded pair can be used to rigidly lock the second clamping plate 5 in this clamping posture. When it is necessary to avoid obstacles, the second clamping plate 5 is rotated to the "second position". At this time, another through hole 16 will align with the same threaded hole. Similarly, the positioning rod 17 can be screwed in to lock it.

[0042] In this embodiment, the guide part 15 is selected as a guide rod 151 fixed on the first clamping plate 4. The guide rod 151 is arranged parallel to the first lead screw 62. A groove adapted to the guide rod 151 is provided on the second drive seat, and part of the guide rod 151 is located in the groove. To further improve the applicability of the guide rod 151, when the second clamping plate 5 rotates to abut against the guide rod 151, the second clamping plate 5 is in the "second position", and the corresponding through hole 16 is aligned with the threaded hole.

[0043] In this embodiment of the application, for ease of design, the first drive seat and the second drive seat are integrated into a single drive seat 13.

[0044] Reference Figures 1-4 The first clamping plate 4 is provided with a connecting part 18 that can connect with the second clamping plate 5. The connecting part 18 is configured to pass through the cavity of the traction sheave. The first clamping plate 4 has an elongated first waist-shaped hole 19, and the second clamping plate 5 has an elongated second waist-shaped hole 20. The connecting part 18 is a connecting bolt 181 that passes through the first waist-shaped hole 19 and the second waist-shaped hole 20 simultaneously. After the first clamping plate 4 and the second clamping plate 5 initially clamp the rim of the traction sheave, the connecting bolt 181, as the connecting part 18, passes through the first waist-shaped hole 19 on the first clamping plate 4 and the second waist-shaped hole 20 on the second clamping plate 5 in sequence. The end of the connecting bolt 181 abuts against one of the clamping plates, and then a nut is installed so that the nut of the connecting bolt 181 abuts against the other clamping plate, thereby completing the connection and fixation of the first clamping plate 4 and the second clamping plate 5.

[0045] The implementation principle of the old elevator auxiliary dismantling device in this application embodiment is as follows: Wire rope stabilization stage: After the operator fixes the mounting base 1 in the working position, they control the second motor 31 of the first drive mechanism 3 to operate, driving the support plate 2 and the entire clamping unit on it to rotate, initially aligning it with the traction sheave. The support plate 2 rotates until it is parallel to the wheel surface of the traction sheave. Subsequently, the operator controls the drive sliding seat 9 to move linearly in the direction pointing towards the wheel core of the traction sheave. The sliding seat 9 drives the first clamping plate 4, the second clamping plate 5, and the auxiliary seat 7 fixed on it to move smoothly closer to the traction sheave, and the second telescopic rod 141 drives the auxiliary seat 7 to move further.

[0046] When the remaining wire rope on the traction sheave contacts the anti-slip pad 11 at the front end of the auxiliary seat 7, the auxiliary seat 7 continues to move forward slowly. At this time, the grooves 12 on the anti-slip pad 11, with their cross-sections gradually increasing from top to bottom, can easily guide the suspended wire rope into the corresponding grooves. Due to the constraint of the grooves 12, all wire ropes are effectively concentrated and stabilized in their respective positions. At this point, the operator can safely remove the wire ropes one by one, and the remaining wire ropes will not sway violently under the constraint of the grooves 12, significantly improving the safety of the wire rope removal process.

[0047] Positioning and Avoidance: After all wire ropes are removed, the second telescopic rod 141 drives the auxiliary seat 7 to move away from the traction sheave wheel core, continuing to drive the sliding seat 9 forward. The first clamping plate 4 and the second clamping plate 5 approach the rim of the traction sheave. Due to the complex structure of the traction sheave, there may be protrusions or obstacles on the rim, requiring adjustment of the angle of the second clamping plate 5 for avoidance. The operator manually rotates the second clamping plate 5, making it rotate around the hinge point with the second drive seat, from the clamping position parallel to the first clamping plate 4 (first position) to an inclined avoidance position (second position). When the second clamping plate 5 rotates to the second position, its through hole 16 is coaxially aligned with the threaded hole on the second drive seat. At this time, the second positioning rod 17 is passed through the through hole 16, and its threaded end is screwed into the threaded hole of the second drive seat and tightened. Through the self-locking property of the threaded pair, the second clamping plate 5 is firmly locked in this avoidance posture. In this state, the sliding seat 9 continues to move forward, allowing the first clamping plate 4 and the second clamping plate 5 to smoothly bypass the obstacle and reach the predetermined clamping positions on both sides of the wheel rim.

[0048] Clamping and Auxiliary Support: After the first clamping plate 4 and the second clamping plate 5 are in place, remove the second positioning rod 17 and manually rotate the second clamping plate 5 back to the clamping position parallel to the first clamping plate 4 (first position). At this time, the through hole 16 on the second clamping plate 5 is aligned with the threaded hole on the second drive seat. Pass the first positioning rod 17 through the through hole 16 and screw it into the threaded hole to tighten it, locking the second clamping plate 5 in a linear clamping state. Subsequently, start the first motor 61 of the first drive component 6. The first motor 61 drives the first lead screw 62 to rotate, driving the second drive seat, which is fixedly connected to the lead screw nut, to move linearly. Since the second clamping plate 5 has been locked at an angle by the first positioning rod 17, the linear movement of the second drive seat is directly converted into the linear closing movement of the second clamping plate 5 relative to the first clamping plate 4, thereby stably and accurately clamping both sides of the rim of the traction sheave. Next, the second telescopic rod 141 pushes the auxiliary seat 7 forward in a direction perpendicular to the clamping surface (pointing towards the traction sheave core), causing the anti-slip pad 11 at its end to press tightly against the end face of the rim (spoke plane), providing an auxiliary support force perpendicular to the main clamping surface. This auxiliary support effectively suppresses minor deformations or deflections that may occur in the clamping system under force, enhancing overall rigidity.

[0049] Strengthening the connection and final removal: After clamping and auxiliary support are completed, the connecting part 18 is activated to further improve the safety of hoisting. The operator adjusts the insertion points of the connecting bolts 181 in the first oblong hole 19 and the second oblong hole 20 according to the actual position of the traction sheave cavity. Then, the connecting bolts 181 are sequentially passed through the first oblong hole 19 on the first clamping plate 4, the cavity inside the traction sheave rim, and the second oblong hole 20 on the second clamping plate 5, and finally tightened with nuts. In this way, the first clamping plate 4, the second clamping plate 5, and the traction sheave are connected into a rigid integral frame by the connecting bolts 181, greatly enhancing the reliability of the clamping. At this point, the final connecting bolts 181 between the traction sheave and the base can be safely removed. After removal, the device itself can be used as a hoisting clamp, and the traction sheave can be smoothly and safely moved away from its original position and transported by connecting the support plate 2 or the lifting point on the mounting base 1 with hoisting equipment.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An auxiliary device for dismantling old elevators, characterized in that: The device includes a mounting base (1), on which a support plate (2) is rotatably connected. The mounting base (1) is provided with a first drive mechanism (3) for driving the support plate (2) to move in a direction close to or away from the traction sheave. The support plate (2) is provided with a first clamping plate (4) for abutting against one side of the rim of the traction sheave. A second clamping plate (5) is rotatably provided on the side of the first clamping plate (4) close to the traction sheave. A first drive member (6) is provided on the first clamping plate (4) for driving the second clamping plate (5) to move in a direction away from or close to the first clamping plate (4).

2. The auxiliary demolition device for old elevators according to claim 1, characterized in that: An auxiliary seat (7) is slidably disposed between the first clamping plate (4) and the second clamping plate (5). A second driving member is provided on the first clamping plate (4) for driving the auxiliary seat (7) to move in the direction close to the wheel core of the traction wheel. The sliding direction of the auxiliary seat (7) is perpendicular to the movement direction of the first driving member (6) driving the second clamping plate (5).

3. The auxiliary demolition device for old elevators according to claim 2, characterized in that: A sliding seat (9) is slidably connected to the support plate (2). The sliding direction of the sliding seat (9) points to the wheel core of the traction wheel. The support plate (2) is also provided with a second driving mechanism (10) for driving the sliding seat (9) to slide. The first clamping plate (4) is provided on the sliding seat (9). An anti-slip pad (11) is provided on the side of the auxiliary seat (7) facing the traction wheel. The anti-slip pad (11) has a groove (12) corresponding to the wire rope on the traction wheel.

4. The auxiliary demolition device for old elevators according to claim 3, characterized in that: The extension direction of the groove (12) is consistent with the direction in which the wire rope of the traction sheave is pulled apart, and the cross-section of the groove (12) gradually increases along the extension direction.

5. The auxiliary demolition device for old elevators according to claim 3, characterized in that: The second driving member includes a first driving seat disposed between the first clamping plate (4) and the second clamping plate (5), and a telescopic part (14) is provided on the first driving seat. The telescopic part (14) extends in the direction of the extension and retraction of the telescopic part (14) towards the wheel core of the traction wheel. The auxiliary seat (7) is disposed on the telescopic part (14).

6. The auxiliary dismantling device for old elevators according to claim 1, characterized in that: The first driving component (6) includes a first motor (61) disposed on the first clamping plate (4). The output shaft of the first motor (61) is coaxially fixedly connected to a first lead screw (62). The lead screw nut of the first lead screw (62) is fixedly connected to a second driving seat. The second driving seat is rotatably connected to the second clamping plate (5). The first clamping plate (4) is provided with a guide part (15) for guiding the second driving seat to move along the axial direction of the first lead screw (62). The second driving seat is provided with a positioning structure for limiting the rotation of the second clamping plate (5).

7. The auxiliary demolition device for old elevators according to claim 6, characterized in that: The positioning structure includes a threaded hole on the second drive seat, and at least two through holes (16) on the second clamping plate (5) that can be coaxially aligned with the threaded hole. A positioning rod (17) is inserted through any of the through holes (16), and the positioning rod (17) is provided with a threaded section that can be threadedly engaged with the threaded hole. When at least one of the through holes (16) is coaxially aligned with the threaded hole, the second clamping plate (5) rotates to a first position opposite to the first clamping plate (4). When at least one of the through holes (16) is coaxially aligned with the threaded hole, the second clamping plate (5) rotates to a second position that avoids the traction sheave.

8. The auxiliary demolition device for old elevators according to claim 1, characterized in that: The first clamping plate (4) is provided with a connecting part (18) that can be connected to the second clamping plate (5), and the connecting part (18) is configured to pass through the cavity of the traction sheave.

9. The auxiliary demolition device for an old elevator according to claim 8, characterized in that: The first clamping plate (4) has a first waist-shaped hole (19), and the second clamping plate (5) has a second waist-shaped hole (20). The connecting part (18) is a connecting bolt (181) that passes through the first waist-shaped hole (19) and the second waist-shaped hole (20) simultaneously.

10. The auxiliary demolition device for old elevators according to claim 1, characterized in that: The first drive mechanism (3) includes a second motor (31) disposed on the mounting base (1). The output shaft of the second motor (31) is arranged radially parallel to the traction wheel. The output shaft of the second motor (31) is coaxially and fixedly connected to the rotating shaft of the support plate (2).

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