Hardening treatment process and device for traction sheave for elevator

Abstract

The invention provides a hardening treatment process and device for a traction sheave for an elevator, and relates to the hardening treatment process, the device comprises a treatment box, a drawing table is horizontally and slidably matched with the inner wall of the treatment box, a treatment mechanism is matched with the drawing table, and the treatment mechanism comprises a hollow column table; a plurality of clamping plates are arranged on the outer top of the hollow column platform in a circumferential array mode, a laser mechanism is horizontally matched with the treatment mechanism in a sliding mode, and the hardening treatment process of the traction sheave for the elevator comprises the following steps of T1, clamping and fixing the traction sheave, T2, adjusting hardening parameters, T3, selecting a hardening treatment mode of the traction sheave, and T4, carrying out hardening treatment on the traction sheave. Two hardening treatment modes can be selected according to the size of the hardening treatment area, large-area hardening treatment of the traction wheel is synchronously conducted through operation of the laser device and horizontal movement of the laser device, the hardening treatment area is increased, the traction wheel is quenched more comprehensively, and the quality of the traction wheel is improved. And the efficiency of rapid heat exchange between the core part of the traction wheel and the high-temperature surface is improved.

Description

Technical Field

[0001] The invention relates to a hardening treatment process, in particular to a hardening treatment process and a device for a traction wheel for an elevator. Background Art

[0002] The traction sheave is a key component in the elevator system, used to transmit power and support the operation of the elevator. It is usually made of QT60-2 ductile iron with high strength and good toughness, and can bear the entire weight of the elevator car. The hardening treatment of the traction sheave can improve its surface hardness and wear resistance while maintaining the toughness and strength of its core. After the traction sheave is laser treated, the unheated traction sheave core is used to quickly exchange heat with the high-temperature surface to achieve self-quenching of the rope groove surface and obtain a martensitic hardened layer.

[0003] After the existing traction wheel is clamped and fixed, the hardening position can only be adjusted by adjusting the laser mechanism, and the hardening treatment method cannot be selected according to demand. Whether it is a small area (suitable for point-to-point hardening treatment for rework) or a large area (initial hardening treatment), the coverage of the traction wheel quenching is reduced, which is not conducive to rapid heat exchange between the traction wheel core and the high-temperature surface. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a hardening treatment process and device for an elevator traction wheel, which solves the problem that after the existing traction wheel is clamped and fixed, the hardening position can only be adjusted by adjusting the laser mechanism, and the hardening treatment method cannot be selected according to demand.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a hardening treatment process and device for a traction wheel for an elevator, comprising a treatment box, the inner wall of the treatment box is horizontally slidably matched with a pull-out platform, the pull-out platform is matched with a treatment mechanism, the treatment mechanism includes a hollow column platform, a plurality of clamping plates are arranged in a circular array on the top of the hollow column platform, and a laser mechanism is horizontally slidably matched on the treatment mechanism. The hardening treatment process for the traction wheel for an elevator comprises the following steps:

[0008] T1. Clamp and fix the traction wheel: open the processing box and pull out the pull-out table, place the traction wheel on the top of the hollow column outside and between several clamping plates, adjust the spacing of the clamping plates, and the spacing between the traction wheel and the laser is within the range of 200-280mm;

[0009] T2. Adjust the hardening parameters: according to the material of the traction wheel, set the laser power (about 800 W), heating time (0.8 to 1 second), and laser speed (400 mm / min) of the laser mechanism (35), and then push back the pulling table;

[0010] T3. Choose the hardening treatment method for the traction sheave:

[0011] Method 1: Start the processing mechanism (hardening treatment of a small area), so that the laser mechanism is driven to move horizontally during the rotation of the hollow column, until the laser mechanism moves to the hardening treatment position and then performs point-to-point hardening treatment;

[0012] Method 2: Start the treatment mechanism (large-area hardening treatment) so that the rotation of the hollow column, that is, the horizontal movement of the laser mechanism, is synchronized with the operation of the laser mechanism, which can increase the hardening treatment area, make the traction wheel quenched comprehensively, and improve the efficiency of rapid heat exchange between the traction wheel core and the high-temperature surface.

[0013] Preferably, a central shaft rotatably matched with the outer top of the pull-out platform is fixed at the center position of the outer bottom of the hollow column platform, and a main gear is fixed at the bottom of the central shaft inside the pull-out platform.

[0014] A slave gear meshing with the main gear is rotatably mounted on the top of the pull-out platform, a first bevel gear is fixed to the bottom of the slave gear, a rotating rod is rotatably mounted inside the pull-out platform, a second bevel gear meshing with the first bevel gear is fixed to one end of the rotating rod, and a third bevel gear is fixed to the other end of the rotating rod.

[0015] Preferably, a vertical rod is rotatably mounted on the pull-out platform, a fourth bevel gear meshing with the third bevel gear is fixed to the bottom of the vertical rod below the pull-out platform, an eccentric disk is fixed to the top of the vertical rod, and a circular groove is provided on the top of the eccentric disk for slidingly engaging with the laser mechanism.

[0016] Preferably, an L-shaped plate is fixed inside the top of the pull-out table, a first motor is fixedly installed on the top of the L-shaped plate, and an output end of the first motor is fixedly connected to the main gear.

[0017] Preferably, a track frame is provided on the top of the pull-out table.

[0018] The laser mechanism includes a laser, a laser head is arranged at the bottom of the laser, a connecting plate is fixedly installed on one side of the laser, a sliding block that slidably cooperates with the track frame is fixed on one side of the connecting plate, a sliding cylinder is fixed at the bottom of the sliding block, and the sliding cylinder slidably cooperates with the circular groove.

[0019] Preferably, a central column is rotatably engaged with the center position of the inner wall of the hollow column platform, a rotating plate is rotatably engaged with the circular array on the top of the central column, and a clamping shaft is rotatably engaged with the top of the rotating plate.

[0020] A rectangular groove is formed through the circumferential array on the top of the hollow column, and a rectangular block is fixed on the circumferential side of the clamping shaft to slide with the rectangular groove. The top of the clamping shaft is located above the hollow column and is hinged with the clamping plate.

[0021] Preferably, an arc-shaped groove is penetrated through the outer peripheral side of the hollow column base; a rotating plate that slides with the arc-shaped groove is fixed to the outer peripheral side of the central column, a mounting plate is fixed to the bottom of the rotating plate, and the mounting plate is fixedly connected to the outer peripheral side of the hollow column base by bolts.

[0022] Preferably, main tooth columns are fixed in a circular array on the outer top of the hollow column base, which is located outside the rectangular groove.

[0023] A slave tooth column meshing with the master tooth column is fixed at the bottom of the clamping plate.

[0024] Preferably, the bottom of the clamping plate is hinged with a V-shaped lock, a baffle is fixed to the bottom of the V-shaped lock, and a plurality of arc springs are fixedly connected between the clamping plate and the side of the V-shaped lock away from the tooth column.

[0025] One end of the V-shaped lock buckle is engaged with the slave tooth column, and one end of the V-shaped lock buckle is located above the main tooth column and close to one side of the slave tooth column and has a slot, and the width of the slot is greater than the diameter of the main tooth column.

[0026] (III) Beneficial effects

[0027] The present invention provides a hardening treatment device for a traction sheave for an elevator, which has the following beneficial effects:

[0028] 1. In the present invention, through the setting of the processing mechanism, two hardening processing methods can be selected according to the size of the hardening processing area, which facilitates the hardening processing of the traction sheave.

[0029] 2. In the present invention, the large-area hardening treatment of the traction wheel is carried out synchronously by the operation of the laser and the horizontal movement of the laser. The hardening treatment can be carried out during the rotation of the traction wheel. As the traction wheel rotates, the position of the laser also changes, thereby increasing the area of ​​the hardening treatment, making the quenching of the traction wheel more comprehensive, and improving the efficiency of rapid heat exchange between the traction wheel core and the high-temperature surface.

[0030] 3. In the present invention, by means of the mutual engagement of the V-shaped lock and the slave gear column, the meshing of the master gear column and the slave gear column, and the contact and separation of the baffle plate fixed at the bottom of the V-shaped lock and the master gear column, not only the laying down of several clamping plates is achieved, which makes it convenient to place the traction wheel between several clamping plates, but also the traction wheel can be clamped and fixed, thus preventing the traction wheel from falling off during the hardening treatment process, and improving the accuracy of the hardening treatment position. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a hardening treatment device for a traction sheave for an elevator according to the present invention;

[0032] Figure 2 It is a schematic diagram of the structure of the pull-out table and the processing mechanism;

[0033] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0034] Figure 4 It is a cross-sectional view of the pull-out table and the processing mechanism;

[0035] Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle;

[0036] Figure 6 for Figure 4 The enlarged schematic diagram of the center C;

[0037] Figure 7 It is a schematic diagram of the structure of the processing mechanism;

[0038] Figure 8 It is a front view of the processing mechanism;

[0039] Fig. 9 It is a structural diagram of the central column;

[0040] Fig.10 It is a cross-sectional view of the top of the clamping shaft;

[0041] Fig.11 for Fig.10 A magnified schematic diagram of D in the middle;

[0042] Fig.12 Schematic diagram of the laser mechanism.

[0043] Among them, 1. processing box; 2. pull-out table; 3. processing mechanism; 201. L-shaped plate; 202. first motor; 203. track frame; 31. hollow column platform; 311. central axis; 312. main gear; 313. central column; 3131. rotating plate; 3132. clamping shaft; 3133. rectangular block; 3134. clamping plate; 31341. slave gear column; 31342. V-shaped lock buckle; 31343. stop Plate; 31344, arc spring; 3135, rotating plate; 3136, mounting plate; 314, rectangular groove; 315, arc groove; 316, main gear column; 32, slave gear; 321, first bevel gear; 33, rotating rod; 331, second bevel gear; 332, third bevel gear; 34, vertical rod; 341, fourth bevel gear; 342, eccentric disk; 35, laser mechanism; 351, laser; 352, sliding block. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Embodiment 1:

[0046] like Figure 1-Figure 12 As shown, the embodiment of the present invention provides a hardening treatment process and device for an elevator traction wheel, comprising a treatment box 1, the inner wall of the treatment box 1 is horizontally slidably matched with a pull-out platform 2, the pull-out platform 2 is matched with a treatment mechanism 3, the treatment mechanism 3 includes a hollow column 31, a plurality of clamping plates 3134 are arranged in a circular array on the top of the hollow column 31, and a laser mechanism 35 is horizontally slidably matched on the treatment mechanism 3. The hardening treatment process for the elevator traction wheel comprises the following steps:

[0047] T1. Clamp and fix the traction wheel: open the processing box 1 and pull out the pull-out table 2, place the traction wheel on the top of the hollow column 31 between a plurality of clamping plates 3134, and adjust the spacing between the clamping plates 3134, wherein the spacing between the traction wheel and the laser 351 is within the range of 200 to 280 mm;

[0048] T2. Adjust the hardening parameters: according to the material of the traction sheave, set the laser power (about 800 W), heating time (0.8 to 1 second), and laser speed (400 mm / min) of the laser mechanism 35, and then push back the pulling table 2;

[0049] T3. Choose the hardening treatment method for the traction sheave:

[0050] Method 1 (hardening treatment of a small area): Start the treatment mechanism 3, so that the hollow column 31 drives the laser mechanism 35 to move horizontally during rotation, until the laser mechanism 35 moves to the hardening treatment position and then performs point-to-point hardening treatment;

[0051] Method 2 (large-area hardening treatment): Start the treatment mechanism 3 so that the rotation of the hollow column 31, that is, the horizontal movement of the laser mechanism 35, is synchronized with the operation of the laser mechanism 35, which can increase the area of ​​hardening treatment, make the traction wheel quenched comprehensively, and improve the efficiency of rapid heat exchange between the traction wheel core and the high-temperature surface.

[0052] Specifically, a central axis 311 is fixed at the center position of the outer bottom of the hollow column 31 and is rotatably matched with the outer top of the pull-out platform 2. A main gear 312 is fixed at the bottom of the central axis 311 inside the pull-out platform 2. A slave gear 32 is rotatably matched with the main gear 312 at the top of the pull-out platform 2. A first bevel tooth 321 is fixed at the bottom of the slave gear 32. A rotating rod 33 is rotatably matched inside the pull-out platform 2. A second bevel tooth 331 is fixed at one end of the rotating rod 33 and is meshed with the first bevel tooth 321. A third bevel tooth 332 is fixed at the other end of the rotating rod 33.

[0053] Furthermore, a vertical rod 34 is rotatably engaged on the pull-out platform 2, and a fourth bevel gear 341 meshing with the third bevel gear 332 is fixed to the bottom of the vertical rod 34 below the pull-out platform 2, and an eccentric disk 342 is fixed to the top of the vertical rod 34, and a circular groove slidably engaged with the laser mechanism 35 is opened on the top of the eccentric disk 342; an L-shaped plate 201 is fixed to the top of the pull-out platform 2, and a first motor 202 is fixedly installed on the top of the L-shaped plate 201, and the output end of the first motor 202 is fixedly connected to the main gear 312; a track frame 203 is arranged on the top of the pull-out platform 2; the laser mechanism 35 includes a laser 351, a laser head is arranged at the bottom of the laser 351, a connecting plate is fixedly installed on one side of the laser 351, a sliding block 352 slidably engaged with the track frame 203 is fixed to one side of the connecting plate, and a sliding cylinder is fixed to the bottom of the sliding block 352, and the sliding cylinder slidably engages with the circular groove.

[0054] The operation process of this embodiment is as follows: open the processing box 1 and then pull out the pull-out table 2, place the traction wheel on the top of the hollow column 31 between a plurality of clamping plates 3134, adjust the spacing of the clamping plates 3134 so that the traction wheel is clamped and fixed, then adjust the hardening parameters, and then select the hardening treatment method for the traction wheel, specifically, start the first motor 202 fixedly installed on the top of the L-shaped plate 201, so that the main gear 312 fixedly connected to the output end of the first motor 202 rotates, driving the slave gear 32 meshing with the main gear 312 to rotate, and then driving the first bevel gear 321 fixed at the bottom center position of the slave gear 32 to rotate, and through the meshing of the first bevel gear 321 and the second bevel gear 331, and the meshing of the third bevel gear 332 and the fourth bevel gear 341, the vertical rod 34 on the pull-out table 2 is driven to rotate, so that the top of the vertical rod 34 is fixed. The eccentric disk 342 rotates, thereby driving the sliding block 352 that slides on the top of the eccentric disk 342 to make horizontal reciprocating motion along the track frame 203, so that the laser 351 is driven to make horizontal reciprocating motion during the rotation of the hollow column platform 31. The selection of method one and method two is set according to the hardening treatment needs of the traction wheel. The selected method one is to turn off the first motor 202 fixedly installed on the top of the L-shaped plate 201 after the laser 351 moves to a certain position, and then start the laser 351 for hardening treatment; the selected method two is to synchronize the operation of the laser 351 and the horizontal movement of the laser 351, so that the hardening treatment can be carried out during the rotation of the traction wheel. As the traction wheel rotates, the position of the laser 351 also changes, which increases the hardening treatment area, makes the quenching of the traction wheel more comprehensive, and improves the efficiency of rapid heat exchange between the traction wheel core and the high-temperature surface.

[0055] Embodiment 2:

[0056] This embodiment is based on the first embodiment: a central column 313 is rotatably engaged with the center position of the inner wall of the hollow column base 31, a rotating plate 3131 is rotatably engaged with the top circular array of the central column 313, and a clamping shaft 3132 is rotatably engaged with the top of the rotating plate 3131; a rectangular groove 314 is penetrated through the circular array on the top of the outer top of the hollow column base 31, a rectangular block 3133 that slides with the rectangular groove 314 is fixed to the side surface of the clamping shaft 3132, and the top of the clamping shaft 3132 is located above the hollow column base 31 and is hingedly engaged with the clamping plate 3134.

[0057] Specifically, an arc groove 315 is formed through the outer side of the hollow column base 31; a rotating plate 3135 that slides with the arc groove 315 is fixed to the outer side of the center column 313, and a mounting plate 3136 is fixed to the bottom of the rotating plate 3135. The mounting plate 3136 is fixedly connected to the outer side of the hollow column base 31 by bolts.

[0058] Furthermore, a main tooth column 316 is fixed in a circular array on the outer top of the hollow column 31, and a slave tooth column 31341 meshing with the main tooth column 316 is fixed at the bottom of the clamping plate 3134; a V-shaped lock buckle 31342 is hingedly matched at the bottom of the clamping plate 3134, and a baffle 31343 is fixed at the bottom of the V-shaped lock buckle 31342, and a plurality of arc springs 31344 are fixedly connected between the side of the V-shaped lock buckle 31342 away from the slave tooth column 31341 and the clamping plate 3134; one end of the V-shaped lock buckle 31342 is snap-fitted with the slave tooth column 31341, and one end of the V-shaped lock buckle 31342 is located above the main tooth column 316 and close to the side of the slave tooth column 31341, and a slot is provided, and the width of the slot is greater than the diameter of the main tooth column 316.

[0059] The operation process of this embodiment is as follows: in the initial state, the V-shaped lock buckle 31342 and the slave gear column 31341 are mutually engaged, and after the traction wheel is placed on the outer top of the hollow column platform 31 between the plurality of clamping plates 3134, the rotating plate 3135 fixed on the side of the center column 313 is rotated to make it slide along the arc groove 315, driving the center column 313 to rotate, and the rotation of the center column 313 drives the rotating plate 3131 that rotates the circumferential array at the top of the center column 313 to rotate, so that the rectangular block 3133 fixed on the side of the clamping shaft 3132 slides along the rectangular groove 314, and when the rotating plate 31 When the clamping shaft 3132 that rotates at the top of the clamping shaft 3132 moves horizontally around the hollow column 31, the main tooth column 316 and the slave tooth column 31341 gradually come into contact and mesh, and the baffle 31343 fixed at the bottom of the V-shaped lock buckle 31342 contacts the main tooth column 316, which can drive the clamping plate 3134 that is hinged at the top of the clamping shaft 3132 to rotate around the hollow column 31 and the V-shaped lock buckle 31342 and the slave tooth column 31341 gradually separate. At this time, the arc springs 31344 fixedly connected between the V-shaped lock buckle 31342 and the clamping plate 3134 are compressed, so that The plurality of clamping plates 3134 are laid down to facilitate placing the traction wheel between the plurality of clamping plates 3134. When the clamping shaft 3132 that is matched with the rotation of the top of the rotating plate 3131 moves horizontally toward the center of the hollow column 31, the meshing between the main tooth column 316 and the slave tooth column 31341 is gradually separated, and the contact between the baffle plate 31343 fixed at the bottom of the V-shaped lock buckle 31342 and the main tooth column 316 is also gradually separated, until the contact surface between the baffle plate 31343 fixed at the bottom of the V-shaped lock buckle 31342 and the main tooth column 316 is separated, and the V-shaped lock buckle 31342 and the clamping plate 31341 are engaged. 4, the V-shaped lock buckle 31342 and the tooth column 31341 are engaged with each other, and then the rotating plate 3135 is continuously rotated to drive the clamping plate 3134 to move horizontally toward the center of the hollow column 31, until the clamping plates 3134 and the traction wheel are in contact with each other, and the mounting plate 3136 fixed at the bottom of the rotating plate 3135 is connected and fixed to the outer peripheral side of the hollow column 31 by bolts, so as to clamp and fix the traction wheel, avoid the traction wheel from falling off during the hardening treatment process, and improve the accuracy of the hardening treatment position of the traction wheel.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hardening treatment process and device for a traction sheave for an elevator, characterized in that: The invention comprises a processing box (1), wherein the inner wall of the processing box (1) is horizontally slidably matched with a pull-out platform (2), the pull-out platform (2) is matched with a processing mechanism (3), the processing mechanism (3) comprises a hollow column platform (31), a plurality of clamping plates (3134) are arranged in a circular array on the top of the hollow column platform (31), and a laser mechanism (35) is horizontally slidably matched on the processing mechanism (3). The hardening treatment process of the elevator traction wheel comprises the following steps: T1. Clamping and fixing the traction wheel: After opening the processing box (1), pull out the pull-out table (2), place the traction wheel on the top of the outer side of the hollow column (31) between a plurality of clamping plates (3134), and adjust the spacing of the clamping plates (3134), wherein the spacing between the traction wheel and the laser (351) is within the range of 200 to 280 mm; T2. Adjust the hardening parameters: After setting the laser power (about 800 W), heating time (0.8 to 1 second), and laser speed (400 mm / min) of the laser mechanism (35) according to the material of the traction wheel, push back the pulling table (2); T3. Choose the hardening treatment method for the traction sheave: Method 1 (hardening treatment of a small area): start the treatment mechanism (3), so that the hollow column (31) drives the laser mechanism (35) to move horizontally during the rotation process, until the laser mechanism (35) moves to the hardening treatment position and then performs point-to-point hardening treatment; Method 2 (hardening treatment of a large area): The treatment mechanism (3) is started so that the rotation of the hollow column (31), i.e., the horizontal movement of the laser mechanism (35) and the operation of the laser mechanism (35) are performed synchronously, thereby increasing the area of ​​hardening treatment, making the traction wheel quenched comprehensively, and improving the efficiency of rapid heat exchange between the traction wheel core and the high-temperature surface.

2. The hardening treatment device for an elevator traction sheave according to claim 1, characterized in that: A central shaft (311) is fixed at the center of the outer bottom of the hollow column (31) and is rotatably matched with the outer top of the pull-out platform (2); a main gear (312) is fixed at the bottom of the central shaft (311) and is located inside the pull-out platform (2); A slave gear (32) meshing with the main gear (312) is rotatably mounted on the top of the pull-out platform (2), a first bevel gear (321) is fixed to the bottom of the slave gear (32), a rotating rod (33) is rotatably mounted inside the pull-out platform (2), a second bevel gear (331) meshing with the first bevel gear (321) is fixed to one end of the rotating rod (33), and a third bevel gear (332) is fixed to the other end of the rotating rod (33).

3. The hardening treatment device for an elevator traction sheave according to claim 2, characterized in that: A vertical rod (34) is rotatably engaged on the pull-out platform (2); a fourth bevel tooth (341) meshing with the third bevel tooth (332) is fixed to the bottom of the vertical rod (34) below the pull-out platform (2); an eccentric disk (342) is fixed to the top of the vertical rod (34); a circular groove is provided on the top of the eccentric disk (342) for sliding engagement with the laser mechanism (35).

4. The hardening treatment device for an elevator traction sheave according to claim 3, characterized in that: An L-shaped plate (201) is fixed on the top of the pull-out platform (2), a first motor (202) is fixedly installed on the top of the L-shaped plate (201), and an output end of the first motor (202) is fixedly connected to a main gear (312).

5. The hardening treatment device for an elevator traction sheave according to claim 4, characterized in that: A track frame (203) is arranged on the top of the pull-out platform (2); The laser mechanism (35) comprises a laser (351), a laser head is arranged at the bottom of the laser (351), a connecting plate is fixedly mounted on one side of the laser (351), a sliding block (352) slidably matched with the track frame (203) is fixed on one side of the connecting plate, a sliding cylinder is fixed at the bottom of the sliding block (352), and the sliding cylinder is slidably matched with the circular groove.

6. The hardening treatment device for an elevator traction sheave according to claim 5, characterized in that: The center position of the inner wall of the hollow column platform (31) is rotatably matched with a center column (313), the top of the center column (313) is rotatably matched with a rotating plate (3131) in a circular array, and the top of the rotating plate (3131) is rotatably matched with a clamping shaft (3132); A rectangular groove (314) is formed in a circular array on the outer top of the hollow column base (31), and a rectangular block (3133) that slides with the rectangular groove (314) is fixed on the circumferential side of the clamping shaft (3132). The top of the clamping shaft (3132) is located above the hollow column base (31) and is hingedly engaged with the clamping plate (3134).

7. The hardening treatment device for an elevator traction sheave according to claim 6, characterized in that: An arc-shaped groove (315) is formed through the outer peripheral side surface of the hollow column base (31); a rotating plate (3135) that slidably cooperates with the arc-shaped groove (315) is fixed to the outer peripheral side surface of the central column (313); a mounting plate (3136) is fixed to the bottom of the rotating plate (3135); and the mounting plate (3136) is fixedly connected to the outer peripheral side surface of the hollow column base (31) by bolts.

8. The hardening treatment device for an elevator traction sheave according to claim 7, characterized in that: The outer top of the hollow column platform (31) is located outside the rectangular groove (314) and is fixed with main tooth columns (316) in a circumferential array; A slave tooth column (31341) meshing with the master tooth column (316) is fixed to the bottom of the clamping plate (3134).

9. The hardening treatment device for an elevator traction sheave according to claim 8, characterized in that: The bottom of the clamping plate (3134) is hingedly matched with a V-shaped lock buckle (31342), the bottom of the V-shaped lock buckle (31342) is fixed with a baffle (31343), and a plurality of arc springs (31344) are fixedly connected between the side of the V-shaped lock buckle (31342) away from the tooth column (31341) and the clamping plate (3134); One end of the V-shaped lock buckle (31342) is snap-fitted with the slave tooth column (31341), and one end of the V-shaped lock buckle (31342) is located above the main tooth column (316) and close to the side of the slave tooth column (31341) and is provided with a notch, and the width of the notch is greater than the diameter of the main tooth column (316).

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