Cantilever crane of wire cutting machine

Abstract

The utility model relates to the field of cutting equipment, and discloses a cantilever crane of a wire cutting machine, which comprises a base, a rack, a cantilever device and a cutting device, the cantilever device is arranged on a top plate of the rack, the cantilever device comprises a support column, a first cantilever, an electric hoist and a lifting appliance, the first cantilever extends outwards to the peripheral edge of the top plate, and the lifting appliance is used for lifting the cutting device. The cantilever device is arranged on the top plate, the cantilever crane and the wire cutting machine are integrated, the first cantilever is rotationally connected to the supporting column, and the electric hoist and the lifting appliance are arranged on the first cantilever in a sliding mode, so that rollers in all directions and positions can be conveniently lifted; the roller replacing device can move on the top plate, is flexible in steering, simple in structure, convenient to use and capable of rapidly, efficiently and safely replacing a damaged roller in equipment, labor intensity of workers is relieved, and personal safety and equipment safety are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of cutting equipment, in particular to a cantilever crane of a wire cutting machine. Background Art

[0002] The diamond wire is a cutting tool made by electroplating diamond on the outer layer of a metal wire. At present, the diamond wire is widely used in industries such as cutting photovoltaic silicon wafers, sapphires, graphite, and magnetic materials.

[0003] With the development of multi-wire cutting machines, multi-wire cutting machines with diamond wires have been applied to the cutting of stones. Among them, the cutting component is an important part of multi-wire cutting, mainly used for cutting stones. In these traction and cutting processes, the diamond wire has to contact the surface of the roller, and its function is to stretch the diamond wire through rolling friction. In this way, during the production process of cutting stones, there is long-term friction of the tensile force given by the diamond wire between the rollers, and the rollers will be damaged, resulting in a decrease in the surface finish of the rollers or even deep marks. Using damaged rollers will inevitably damage the diamond wire passing through the surface of the rollers, affecting the cutting quality of the stones. Therefore, the rollers with surface wear need to be replaced at any time.

[0004] China's stone resources are mainly distributed in mountainous areas. Usually, when replacing the rollers, a lifting belt is used to tie the rollers, and then a steel pipe is inserted into the tied sling. The two ends of the steel pipe are manually lifted and then put down, and then the new rollers are transported and installed in the same way; however, since most of the rollers are made of pig iron and steel castings and are relatively heavy, the method of manual shoulder carrying and hand lifting has low efficiency, high risk, and is prone to personal and equipment safety accidents, delaying production; currently, cranes are also used to lift and transport the rollers. Also, due to the relatively complex mountainous terrain, when replacing the rollers back and forth or when it may be necessary to move and turn flexibly in a compact production space, the current cranes occupy a large space and are inconvenient to operate.

[0005] In view of this, the inventor of this case has conducted in-depth research on the above problems, and thus this case has been created. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a cantilever crane of a wire cutting machine with a simple structure, convenient use, and capable of quickly, efficiently, and safely replacing damaged rollers in the equipment.

[0007] In order to achieve the above purpose, the utility model adopts such a technical solution:

[0008] A cantilever crane for a wire cutting machine, comprising a base for placing a stone, a frame disposed above the base, a cantilever device disposed above the frame, and a cutting device for cutting the stone. The frame includes four columns vertically distributed at four corners of the base and a top plate erected and connected between upper ends of the four columns. The cantilever device is disposed on the top plate;

[0009] The cantilever device includes a support column fixedly installed on the top plate, a first cantilever rotatably connected to the support column, a hoist moving along the length direction of the first cantilever and disposed on the first cantilever, and a spreader installed on the hoist and driven by the hoist to lift and lower. The first cantilever extends outward to the outer peripheral edge of the top plate. The spreader is used to lift the cutting device.

[0010] Preferably, a rotating mechanism for driving the first cantilever to rotate is disposed at the upper end of the support column. The rotating mechanism includes a first support, a second support disposed at the upper end of the support column, and a first rotating column rotatably installed on the first support and the second support through bearings. The first cantilever is fixedly connected to the first rotating column.

[0011] Preferably, the cantilever device further includes a second cantilever symmetrically disposed on the support column along the axial direction of the support column and a second rotating column for driving the second cantilever to rotate. The second rotating column is rotatably installed on the first support and the second support through bearings, and the second rotating column is symmetrically disposed with the first rotating column. A counterweight is disposed on the second cantilever and moves along the length direction of the second cantilever.

[0012] Preferably, the cantilever device further includes a driving mechanism for driving the first rotating column and the second rotating column to rotate. The driving mechanism includes a first gear axially connected to the first rotating column, a second gear axially connected to the second rotating column, a chain wound around the outer peripheral edges of the first gear and the second gear and meshing with them, and a driving motor for driving the first gear and / or the second gear to rotate, so as to drive the first rotating column and the second rotating column to rotate synchronously through the driving motor.

[0013] Preferably, the cantilever device further includes a control system for receiving and sending signals. Slide rails are disposed on both the first cantilever and the second cantilever. The hoist and the counterweight are respectively provided with pulleys and are slidably connected along the corresponding slide rails. A pulley motor for driving the corresponding hoist or counterweight to slide is disposed inside each pulley. Each pulley motor is respectively in communication connection with the control system. A pressure sensor in communication connection with the control system is further disposed on each pulley.

[0014] Preferably, the braking disc is fixed on the first rotating column and / or the second rotating column. A plurality of anti-rotation holes are circumferentially and spacedly arranged on the braking disc. A corresponding anti-rotation locking mechanism is further installed on the first support or / and the second support. The anti-rotation locking mechanism includes a positioning pin sleeve fixed on the corresponding support by screws, a limit insertion pin arranged in the positioning pin sleeve, and an elastic member arranged between the limit insertion pin and the positioning pin sleeve. The limit insertion pin is used to pass through the corresponding support and extend into the anti-rotation hole to stop the rotation of the braking disc.

[0015] Preferably, a safety protection net is arranged on the periphery of the top plate. The safety protection net includes a plurality of protection nets and a connecting member for connecting two adjacent protection nets.

[0016] Preferably, an accommodating space for placing the cutting device is formed among the top plate, the base and the four columns. The cutting device includes a cutting frame, four guide rails distributed at the four corners of the cutting frame, a cutting assembly arranged on the cutting frame and used for cutting stones, and a lifting mechanism used for driving the cutting frame to move up and down so that the cutting assembly can cut stones. Four first through holes for the four guide rails to pass through respectively are arranged on the cutting frame, and the four guide rails are correspondingly arranged in the four first through holes one by one.

[0017] Preferably, the lifting mechanism includes ball screw rods symmetrically arranged on the cutting frame and located between two guide rails, and a driving motor arranged on the top plate and used for driving the two ball screw rods to act synchronously. Two second through holes for the two ball screw rods to pass through respectively are symmetrically arranged on the cutting frame. The two ball screw rods are correspondingly and rotatably arranged in the two second through holes respectively and are in threaded connection with the second through holes. A channel through which the stone to be cut passes when the cutting frame moves downward is arranged in the middle of the cutting frame.

[0018] Preferably, a safety protection net is arranged on the periphery of the top plate. The safety protection net includes a plurality of protection nets and a connecting member for connecting two adjacent protection nets.

[0019] By adopting the foregoing design scheme, the beneficial effects of the utility model are as follows: by arranging a cantilever device on the top plate, integrating a cantilever crane and a wire cutting machine, with the first cantilever rotatably connected to the support column, and the electric hoist and the lifting appliance slidably arranged on the first cantilever, the rollers in various directions and positions can be conveniently lifted, reducing the labor intensity of workers, being convenient to use, ensuring personal and equipment safety. The utility model can move on the top plate, has flexible steering, simple structure, convenient use, and can quickly, efficiently and safely replace the damaged rollers in the equipment. Description of the Drawings

[0020] Figure 1 Schematic structural diagram of the present utility model for use with a wire cutting machine;

[0021] Figure 2 Schematic structural diagram of the present utility model;

[0022] In the figure: frame 1, cantilever device 2, support column 21, first cantilever 22, electric hoist 221, sling 222, slide rail 223, pulley 224, second cantilever 23, counterweight 231, rotating mechanism, first support 241, second support 242, first rotating column 243, second rotating column 244, drive mechanism 25, first gear 251, second gear 252, chain 253, brake disc 26, anti-rotation hole 261, positioning pin sleeve 271, limit pin 272, elastic member 27, inner retaining edge 274, pull ring 275, limit through hole 276. Specific embodiments

[0023] The following combines the accompanying drawings in the embodiments of the present utility model to clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0024] Refer to Figures 1 to 2

[0025] A cantilever crane for a wire cutting machine. The cantilever crane in this embodiment can be applied to a traditional wire cutting machine to be suitable for use in relatively complex mountainous terrains or compact production spaces to replace traditional heavy cranes or manual handling operations.

[0026] The cantilever crane of the present utility model includes a cantilever device 2 provided on top of the frame 1 (which will be introduced in detail below) of the wire cutting machine. The cantilever device 2 includes a support column 21 fixedly installed on the frame 1 and a first cantilever 22 and a second cantilever 23 symmetrically arranged on the support column 21 along the axial direction of the support column 21. Specifically, the support column 21 extends in the vertical direction, and both the first cantilever 22 and the second cantilever 23 extend in the horizontal direction.

[0027] Furthermore, the first cantilever 22 and the second cantilever 23 can be two cantilevers with different lengths or two cantilevers with the same length; this embodiment will be described with the length of the first cantilever 22 being greater than the length of the second cantilever 23.

[0028] An electric hoist 221 that moves along the length direction of the first cantilever 22 and a lifting device 222 that is installed on the electric hoist 221 and is driven by the electric hoist 221 to lift are provided on the first cantilever 22. The first cantilever 22 extends outward to the outer peripheral edge of the frame 1. The lifting device 222 is used to lift the roller 11 of the wire cutting machine to facilitate the replacement of the roller 11. A counterweight 231 that moves along the length direction of the second cantilever 23 is provided on the second cantilever 23.

[0029] A rotating mechanism for driving the first cantilever 22 and the second cantilever 23 to rotate is provided at the upper end of the support column 21. The rotating mechanism includes a first support 241 and a second support 242 provided at the upper end of the support column 21, and a first rotating column 243 and a second rotating column 244 that are respectively rotatably installed on the first support 241 and the second support 242 through bearings. The first rotating column 243 and the second rotating column 244 are symmetrically arranged along the axis of the support column 21. The first cantilever 22 is fixedly connected to the first rotating column 243, and the second cantilever 23 is fixedly connected to the second rotating column 244.

[0030] Furthermore, the cantilever device 2 further includes a driving mechanism 25 for driving the first rotating column 243 and the second rotating column 244 to rotate synchronously. The driving mechanism 25 includes a first gear 251 axially connected to the first rotating column 243, a second gear 252 axially connected to the second rotating column 244, a chain 253 wound around the outer peripheral edges of the first gear 251 and the second gear 252 and meshing with them, and a driving motor (not shown in the figure) for driving the first gear 251 and / or the second gear 252 to rotate. By driving the driving motor to drive the chain 253 to rotate, the first rotating column 243 and the second rotating column 244 rotate synchronously, so that the first cantilever 22 and the second cantilever 23 are always on the same straight line. Of course, there are many ways for the driving mechanism 25 of this embodiment to drive the first rotating column 243 and the second rotating column 244 to rotate synchronously, which will not be elaborated here.

[0031] Furthermore, the cantilever device 2 further includes a control system for receiving and sending signals. Slide rails 223 are provided on both the first cantilever 22 and the second cantilever 23. The electric hoist 221 and the counterweight 231 are respectively provided with pulleys 224 and are slidably connected along the corresponding slide rails 223. A pulley motor (not shown in the figure) for driving the corresponding electric hoist 221 or counterweight 231 to slide is provided inside each pulley 224. Each pulley motor is respectively in communication connection with the control system. A pressure sensor (not shown in the figure) for detecting the load of the lifting device 222 is also provided on each pulley 224. The pressure sensor is in communication connection with the control system.

[0032] In the control system of this embodiment, the driving motor is controlled to enable the first cantilever 22 and the second cantilever 23 to achieve precise rotation under the synchronous rotation of the first rotating column 243 and the second rotating column 244; the pulley motor is controlled to enable the pulleys 224 on the electric hoist 221 and the counterweight 231 to achieve precise movement; at the same time, the moving distance of the pulley 224 of the counterweight 231 can be accurately calculated through the pressure sensor, and the lever principle is used to balance the support column 21.

[0033] Adopting the above solution: by setting that the pulley 224 on the electric hoist 221 can slide along the slide rail 223 on the first cantilever 22, and the pulley 224 on the counterweight 231 can slide; the control system sends a signal to the driving motor on the electric hoist 221 to drive the electric hoist 221 to slide, so that the electric hoist 221 reaches above the material and hoists the material; at the same time, the pressure sensor on the pulley 224 transmits the data to the control system, and after being analyzed by the control system, a signal is sent to the pulley 224 on the counterweight 231 to move, thereby changing the position of the counterweight 231, and the lever principle is used to balance the support column 21.

[0034] Furthermore, a braking disc 26 is fixed on the first rotating column 243 and / or the second rotating column 244, and the braking disc 26 rotates synchronously with the corresponding first rotating column 243 or second rotating column 244. A plurality of anti-rotation holes 261 are arranged at intervals along the circumferential direction on the braking disc 26, and an anti-rotation locking mechanism is further installed on the first support 241 and / or the second support 242. The anti-rotation locking mechanism includes a positioning pin sleeve 271, a limit insertion pin 272 arranged in the positioning pin sleeve 271, and an elastic member 273 arranged between the limit insertion pin 272 and the positioning pin sleeve 271. An inner retaining edge 274 is arranged in the positioning pin sleeve 271. One end of the limit insertion pin 272 passing through the inner retaining edge 274 is connected with a pull ring 275. The limit insertion pin 272 is in the shape of a stepped shaft. The above elastic member 273 is sleeved outside the limit insertion pin 272. One end of the elastic member 27 abuts against the inner retaining edge 274. The limit insertion pin 272 is used to pass through the second support 242 and extend into the anti-rotation hole 261 to stop the rotation of the braking disc 26. A limit through hole 276 for the limit insertion pin 272 to pass through is arranged on the second support 242. In the initial state, the elastic member 273 is in an uncompressed state, and the limit insertion pin 272 extends into the anti-rotation hole 261 to realize the limit locking of the corresponding first rotating column 243 or second rotating column 244. Further pulling down the pull ring 275, when reaching the maximum displacement and rotating 90 degrees, the pull ring 275 can be blocked on the lower end surface of the positioning pin sleeve 271, and at the same time, the limit locking of the first rotating column 243 or the second rotating column 244 (i.e., the first cantilever 22 and the second cantilever 23) is released.

[0035] Furthermore, a warning device may be provided on the cantilever device 2 to remind relevant personnel to avoid. The warning device includes a warning display device or a warning playback device. The warning display device may be a display lamp, and the warning playback device may be a player.

[0036] Working principle:

[0037] During use, through the lever principle, the counterweight blocks 231 at different positions can balance the rollers 11 of different weights. Then, turn on the pulley motor to drive the first rotating column 243 or the second rotating column 244 to rotate, drive the hoist 12 to the directly above the roller 11, and then turn on the electric hoist 221 to let the electric hoist 221 lift the roller 11. Then, through the rotation of the rotating arm 21, transfer the material to other places.

[0038] By adopting the foregoing design scheme, the beneficial effects of the present utility model are as follows:

[0039] 1. By providing the cantilever device 2 on the top plate 22, integrating the cantilever crane and the wire cutting machine, with the first cantilever 22 rotatably connected to the support column 21, and the electric hoist 221 and the lifting tool 222 slidably arranged on the first cantilever 22, it is convenient to lift the rollers 11 in various directions and positions, reducing the labor intensity of workers, being easy to use, ensuring personal and equipment safety. The present utility model can move on the top plate 22, is flexible in turning, has a simple structure and is easy to use, and can quickly, efficiently and safely replace the damaged roller 11 in the equipment.

[0040] 2. By providing the vertical rod 1 and the balancing member, the advantages of being able to change the position of the counterweight block 231, being able to use the lever principle to balance the cantilever crane, and being able to not prepare redundant counterweight blocks 231 are achieved. It solves the problem that existing lifting suspension arms often set the counterweight block 231 at a fixed position on the other side. When transporting materials of different weights, it is necessary to increase or decrease the counterweight block 231 to ensure the balance of the cantilever crane. Such operation is relatively cumbersome, increasing the input of manpower and material resources, and having to always prepare a large number of counterweight blocks 231.

[0041] By adopting the foregoing design scheme, the beneficial effects of the present utility model are as follows: By providing the cantilever device 5 on the top plate 23, integrating the cantilever crane and the wire cutting machine, with the aid of the rotating mechanism and the sliding mechanism 55 of the cantilever crane, it is convenient to lift the rollers 11 in various directions and positions, reducing the labor intensity of workers, being easy to use, ensuring personal and equipment safety. The present utility model can move on the top plate 23, is flexible in turning, has a simple structure and is easy to use, and can quickly, efficiently and safely replace the damaged roller 11 in the equipment.

[0042] By providing a vertical rod and a balancing component, the utility model achieves the advantages of being able to change the position of the counterweight 231, being able to balance the cantilever crane by using the lever principle, and being able to dispense with the need to prepare redundant counterweights 231. It solves the problem that in existing lifting suspension arms, counterweights 231 are often arranged at fixed positions on the other side. When transporting materials of different weights, it is necessary to increase or decrease the counterweights 231 to ensure the balance of the cantilever crane. Such operation is rather cumbersome, increasing the input of human and material resources, and it is necessary to always prepare a large number of counterweights 231.

[0043] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A cantilever crane for a wire cutting machine, characterized in that: The machine comprises a base for placing stones, a frame arranged above the base, a cantilever device arranged above the frame, and a cutting device for cutting stones, wherein the frame comprises four upright columns distributed vertically on four corners of the base and a top plate connected between the upper ends of the four upright columns, and the cantilever device is arranged on the top plate; The cantilever device includes a support column fixedly mounted on the top plate, a first cantilever rotatably connected to the support column, an electric hoist arranged on the first cantilever and moving along the length direction of the first cantilever, and a sling installed on the electric hoist and driven to rise and fall by the electric hoist, the first cantilever extends outward to the outer peripheral edge of the top plate, and the sling is used to lift the cutting device.

2. The cantilever crane for a wire cutting machine according to claim 1, characterized in that: The upper end of the support column is provided with a rotating mechanism for driving the first cantilever to rotate, and the rotating mechanism includes a first support, a second support and a first rotating column rotatably installed on the first support and the second support through a bearing at the upper end of the support column, and the first cantilever is fixedly connected to the first rotating column.

3. The cantilever crane for a wire cutting machine according to claim 2, characterized in that: The cantilever device also includes a second cantilever symmetrically arranged on the support column along the axial direction of the support column and a second rotating column that drives the second cantilever to rotate. The second rotating column is rotatably mounted on the first support and the second support through a bearing, and the second rotating column is symmetrically arranged with the first rotating column. The second cantilever is provided with a counterweight block that moves along the length direction of the second cantilever.

4. The cantilever crane for a wire cutting machine according to claim 3, characterized in that: The cantilever device also includes a driving mechanism for driving the first rotating column and the second rotating column to rotate, the driving mechanism includes a first gear connected to the first rotating column shaft, a second gear connected to the second rotating column shaft, a chain wound around the outer periphery of the first gear and the second gear and meshed with them, and a driving motor for driving the first gear and / or the second gear to rotate, so that the first rotating column and the second rotating column can be driven to rotate synchronously through the driving motor.

5. The cantilever crane for a wire cutting machine according to claim 3, characterized in that: The cantilever device also includes a control system for receiving and sending signals. The first cantilever and the second cantilever are both provided with slide rails. The electric hoist and the counterweight block are respectively provided with pulleys and are slidably connected along the corresponding slide rails. A pulley motor is provided inside each pulley for driving the corresponding electric hoist or the counterweight block to slide. Each pulley motor is respectively communicated with the control system. Each pulley is also provided with a pressure sensor communicated with the control system.

6. The cantilever crane for a wire cutting machine according to claim 3, characterized in that: A brake disc is fixed on the first rotating column and / or the second rotating column, and a plurality of anti-rotation holes are arranged on the brake disc at intervals along the circumferential direction. A anti-rotation locking mechanism is also installed on the corresponding first support and / or the second support, and the anti-rotation locking mechanism includes a positioning pin sleeve fixed to the corresponding support by screws, a limit pin arranged in the positioning pin sleeve, and an elastic member arranged between the limit pin and the positioning pin sleeve, and the limit pin is used to pass through the corresponding support and extend into the anti-rotation hole to stop the brake disc from rotating.

7. The cantilever crane for a wire cutting machine according to claim 1, characterized in that: A safety protection net is arranged on the periphery of the top plate, and the safety protection net comprises a plurality of protection nets and a connecting member for connecting two adjacent protection nets.

8. The cantilever crane for a wire cutting machine according to claim 1, characterized in that: The top plate, the base and the four columns form a accommodating space for placing the cutting device, and the cutting device includes a cutting frame, four guide rails distributed at the four corners of the cutting frame, a cutting assembly arranged on the cutting frame and used for cutting stone, and a lifting mechanism for driving the cutting frame to move up and down so that the cutting assembly can cut stone. The cutting frame is provided with four first through holes for the four guide rails to pass through respectively, and the four guide rails are arranged in the four first through holes in a one-to-one correspondence.

9. The cantilever crane for a wire cutting machine according to claim 8, characterized in that: The lifting mechanism includes a ball screw symmetrically arranged on the cutting frame and located between the two guide rails, and a driving motor arranged on the top plate and used to drive the two ball screws to move synchronously. The cutting frame is symmetrically provided with two second through holes for the two ball screws to pass through. The two ball screws are respectively and one by one correspondingly and rotatably arranged in the two second through holes, and are threadedly connected to the second through holes. The middle part of the cutting frame is provided with a channel for the stone to be cut to pass through when the cutting frame is moved downward.

10. The cantilever crane for a wire cutting machine according to claim 1, characterized in that: A safety protection net is arranged on the periphery of the top plate, and the safety protection net comprises a plurality of protection nets and a connecting member for connecting two adjacent protection nets.

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