Cable retracting and deploying device

Abstract

The present invention discloses a cable winding and unwinding device, comprising: a frame platform; a traveling mechanism provided below the frame platform to drive the cable winding and unwinding device to move; a wire winding and unwinding mechanism provided above the frame platform for at least winding and unwinding the cable; a telescopic arm mechanism provided above the frame platform and capable of at least adjusting the cable supply height of the cable winding and unwinding device for different heights required for operations; a control mechanism provided above the frame platform and respectively connected to the traveling mechanism, the wire winding and unwinding mechanism, and the telescopic arm mechanism, for at least controlling the traveling of the traveling mechanism, controlling the wire winding and unwinding mechanism to unwind and recover the cable as the traveling mechanism moves, and controlling the telescopic arm mechanism to adjust the cable supply height. The present invention can greatly reduce the labor intensity of workers, eliminate potential safety risks, improve the operation safety of personnel and equipment, shorten the power outage time, improve work efficiency, and further improve the equipment dispatch rate and economic benefits.

Description

Technical Field

[0001] The present invention belongs to the technical field of power supply facilities for large electric-driven mining equipment in open-pit coal mines, and particularly relates to a cable retracting and deploying device for high benches in open-pit mines. Background Art

[0002] Currently, there are 25 large electric-driven mining equipment in open-pit coal mines, such as draglines, WK-55, WK-35, etc. When the equipment is working, it is arranged on different working benches. By manually moving and laying cables across benches, the following disadvantages exist:

[0003] 1. High labor intensity and large number of personnel required

[0004] With large bench heights (15 - 80 meters) and heavy cable weights (10 - 15 kg / m), manual cable handling results in high labor intensity for workers.

[0005] 2. High safety risks

[0006] (1) Manual cable handling poses a risk of electric shock.

[0007] (2) Manual cable laying across benches poses major safety hazards such as falls from heights and collapses.

[0008] (3) The cable has a short lifespan. When the cable is dragged across benches, it is subjected to large forces and friction, making it prone to premature damage and wear, resulting in high maintenance requirements and a short lifespan.

[0009] 3. Inconvenient cable movement

[0010] As the working face advances, the power supply cable of the electric shovel needs to be periodically repositioned. Manual cable movement is time-consuming, laborious, and inconvenient.

[0011] 4. Low work efficiency

[0012] Frequent manual cable laying, retracting, and movement are not only inconvenient, time-consuming, laborious, and have poor safety, but also the cables are prone to wear. Moreover, the work efficiency is extremely low, prolonging the equipment preparation time and directly affecting production efficiency and economic benefits.

[0013] Therefore, in view of the above technical problems, it is necessary to provide a cable retracting and deploying device for high benches in open-pit mines. Summary of the Invention

[0014] The purpose of the present invention is to provide a cable retracting and deploying device for high benches in open-pit mines, which automatically lays, retracts, and moves cables, replacing the current method of manually throwing the towing rope to lay cables across benches, enabling operators to be freed from heavy physical labor and potential hazards, and solving the problems in the prior art.

[0015] To achieve the above object, the technical solution provided by an embodiment of the present invention is as follows:

[0016] In one embodiment, a cable winding and unwinding device is provided, including:

[0017] A frame platform;

[0018] A traveling mechanism, disposed below the frame platform, driving the cable winding and unwinding device to move;

[0019] A cable winding and unwinding mechanism, disposed above the frame platform, at least for winding and unwinding the cable;

[0020] A telescopic arm mechanism, disposed above the frame platform, at least capable of adjusting the cable supply height of the cable winding and unwinding device for different heights required for operations;

[0021] A control mechanism, disposed above the frame platform and respectively connected to the traveling mechanism, the cable winding and unwinding mechanism, and the telescopic arm mechanism, at least for controlling the traveling of the traveling mechanism, controlling the cable winding and unwinding mechanism to unwind and recover the cable as the traveling mechanism moves, and controlling the telescopic arm mechanism to adjust the cable supply height.

[0022] As a further improvement of the present invention, the cable winding and unwinding mechanism includes:

[0023] A cable winding and unwinding bracket, fixed above the frame platform;

[0024] A cable reel, rotatably installed on the cable winding and unwinding bracket;

[0025] A first power device, connected to the control mechanism and acting on the cable reel, driving the cable reel to rotate.

[0026] As a further improvement of the present invention, the cable winding and unwinding mechanism further includes a wire arranging screw rod assembly. When the cable reel winds the cable, the wire arranging screw rod assembly arranges the cable to be wound under the action of the control mechanism.

[0027] As a further improvement of the present invention, the wire arranging screw rod assembly includes:

[0028] A mounting seat, fixed on the cable winding and unwinding bracket;

[0029] A guide rail, fixedly arranged on the mounting seat;

[0030] A screw rod structure, connected to the mounting seat through a bearing and arranged parallel to the guide rail;

[0031] A wire arranger, slidably arranged on the guide rail, and the wire arranger can reciprocally move along the guide rail under the action of the screw rod structure.

[0032] As a further improvement of the present invention, the telescopic arm mechanism includes:

[0033] A telescopic arm winch, rotatably arranged on the frame platform;

[0034] A telescopic arm, movably mounted on the telescopic arm winch and capable of flipping up and down with the connection point with the telescopic arm winch as a fulcrum;

[0035] A cable guiding assembly, respectively arranged at the fixed end and the free end of the telescopic arm to assist in the winding and unwinding of the cable.

[0036] As a further improvement of the present invention, the telescopic arm winch includes:

[0037] A hinge seat, composed of a bottom plate and side plates. There are two side plates, respectively fixed at both ends of the bottom plate;

[0038] A wire winding assembly, rotatably arranged between the two side plates;

[0039] A second power device, arranged on one of the side plates and cooperating with the wire winding assembly to drive the wire winding assembly to rotate;

[0040] The fixed end of the telescopic arm is arranged on the side plate.

[0041] As a further improvement of the present invention, the telescopic arm mechanism further includes a counterweight block, and the counterweight block is fixed on the bottom plate of the hinge seat through a bracket along the opposite direction of the extension of the telescopic arm.

[0042] As a further improvement of the present invention, the traveling mechanism includes a traveling bracket, a traveling motor, a driving wheel arranged on the traveling bracket and connected to the traveling motor, and a crawler chain covering the periphery of the driving wheel. The traveling motor drives the crawler chain through the driving wheel to realize the traveling of the cable winding and unwinding device.

[0043] As a further improvement of the present invention, the cable winding and unwinding device further includes a power conversion box, and the power conversion box is fixed on the frame platform and is at least used for the conversion of high and low voltage electricity.

[0044] As a further improvement, it further includes a lighting device. The lighting device is arranged on the frame platform and connected to the control mechanism for lighting.

[0045] As a further improvement, it further includes a remote control terminal. The remote control terminal is connected to the control mechanism to realize the remote operation of the cable winding and unwinding device.

[0046] The cable winding and unwinding device of the present invention can greatly reduce the labor intensity of workers, eliminate potential safety risks, improve the operation safety of personnel and equipment, shorten the power outage time, improve work efficiency, and thus increase the equipment dispatch rate and economic benefits.

[0047] Compared with the prior art, its beneficial effects include:

[0048] 1. Operation safety

[0049] The cable winding and unwinding device can be remotely controlled, is convenient to move, and has safe operation.

[0050] The cable winding and unwinding device is equipped with a cantilever mechanism, which can extend outside the steps. Operators can stay away from the edge of the steps, avoiding safety hazards such as falling from height, rib spalling, landslides, and electric shock.

[0051] 2. Large operation range

[0052] The operation range after the cable car is connected to the high-voltage electric pole once: 600 - 1000m (the operation range of the cable car is 300 - 500m to the left and right of the electric pole).

[0053] 3. Long service life of the cable

[0054] The cable winding and unwinding device on the flat plate is equipped with a cantilever (telescopic arm) and a cable guiding component. When the cable is lowered from the high step, the cable is less stressed, and the friction between the cable and the step wall can be avoided, preventing damage to the cable and increasing the service life of the cable.

[0055] 4. High work efficiency

[0056] The cable winding and unwinding device is convenient to operate and flexible to mobilize (remotely controlled), with high work efficiency.

[0057] 5. Low labor intensity

[0058] The cable winding and unwinding device for laying cables is easy to operate (remotely controlled), not only has low labor intensity, can greatly liberate the labor force, reduce the number of personnel, but also has high efficiency and safe operation. Description of the drawings

[0059] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0060] Figure 1 It is a schematic three-dimensional structure diagram of the cable winding and unwinding device in an embodiment of the present application;

[0061] Figure 2 It is a schematic diagram of the working state of the cable winding and unwinding device in an embodiment of the present application;

[0062] Figure 3 It is a schematic diagram of the non - working state of the cable winding and unwinding device in an embodiment of the present application;

[0063] Figure 4 It is a structural diagram of the wire arranging screw rod assembly of the cable winding and unwinding device in an embodiment of the present application. Specific embodiments

[0064] The present invention will be described in detail below in conjunction with the embodiments shown in the drawings. However, these embodiments do not limit the present invention, and structural, method, or functional transformations made by those of ordinary skill in the art based on these embodiments are all included in the protection scope of the present invention.

[0065] Referring to Figures 1-3 As shown, an embodiment of the present application provides a cable winding and unwinding device, including a frame platform 1, a traveling mechanism 2, a wire winding and unwinding mechanism 3, a telescopic arm mechanism 4, a control mechanism 5, a power distribution box 6, and a lighting mechanism 7; the traveling mechanism 2 is arranged below the frame platform 1, and the wire winding and unwinding mechanism 3, the telescopic arm mechanism 4, the control mechanism 5, the power distribution box 6, and the lighting mechanism 7 are integrated above the frame platform 1; the control mechanism 5 is respectively connected to the traveling mechanism 2, the wire winding and unwinding mechanism 3, the telescopic arm mechanism 4, and the lighting mechanism 7 for controlling each component to operate according to the setting.

[0066] The frame platform 1 has a plate - shaped installation platform, on which other components are integrated.

[0067] The traveling mechanism 2 includes a traveling bracket 21, a traveling motor, a driving wheel 22, and a crawler chain 23. The traveling bracket 21 is fixed below the frame platform 1; the traveling motor is arranged on the traveling bracket 21; the driving wheel 22 is fixed on the traveling bracket 21 and connected to the traveling motor; the crawler chain 23 is wrapped around the driving wheel 22; the traveling motor drives the crawler chain 23 through the driving wheel 22 to realize the traveling of the cable winding and unwinding device.

[0068] In other embodiments, the traveling mechanism can also adopt a non - crawler chain structure, as long as it can meet its normal driving on non - graded roads. However, in this embodiment, the crawler chain structure is preferably used, which can travel better on the uneven, dusty, or muddy roads of open - pit mines.

[0069] The wire winding and unwinding mechanism 3 is arranged above the frame platform 1 for winding and unwinding the cable, and includes a wire winding and unwinding bracket 31, a cable reel 32, a reel motor 33, and a wire arranging screw rod assembly 34.

[0070] Two wire winding and unwinding brackets 31 are fixed at the front end of the frame platform 1.

[0071] The cable reel 32 is rotatably installed between the cable winding and unwinding brackets 31 through a rotating shaft and bearings. The cable reel can store a cable with a length of 300 - 500 m and is connected to a power supply device in the distance.

[0072] The reel motor 33 is installed on any one of the cable winding and unwinding brackets 31, connected to the control mechanism 5 and acting on the rotating shaft to drive the cable reel 32 to rotate.

[0073] The wire arranging lead screw assembly 34 is fixed on the cable winding and unwinding bracket 31 and is arranged axially parallel to the cable reel 32. When the cable reel 32 winds the cable, the wire arranging lead screw assembly 34 arranges the cable to be wound under the action of the control mechanism 5 to ensure that the cable is neatly wound and unwound, orderly and not disorderly.

[0074] Reference Figure 4 As shown, the wire arranging lead screw assembly 34 includes a mounting seat 341, guide rails 342, a lead screw structure 343 and a wire arranger 344.

[0075] The mounting seat 341 is fixed on the cable winding and unwinding bracket 31. It can be that two mounting seats are respectively fixed on two cable winding and unwinding brackets, or one mounting seat is fixed on one of the cable winding and unwinding brackets.

[0076] The number of the guide rails 342 is two, which are fixedly arranged on the mounting seat 341 and axially parallel to the cable reel 32. Since the weight of the cable is large, the two guide rails can improve the stability of the wire arranging lead screw assembly 34.

[0077] The lead screw structure 343 is connected to the mounting seat 341 through bearings and is arranged parallel to the guide rails 342. The lead screw structure 343 includes a lead screw and a driving motor, and the driving motor drives the lead screw to rotate.

[0078] The wire arranger 344 is slidably arranged on the guide rails 342 and the lead screw. The wire arranger 344 can reciprocate along the guide rails 342 under the action of the lead screw structure 343. The wire arranger uses existing equipment on the market and no structural description is made here.

[0079] Reference Figure 2 As shown, the telescopic arm mechanism 4 is arranged behind the frame platform 1 and can adjust the cable supply direction and height of the cable winding and unwinding device for different directions and heights required for the operation; the telescopic arm mechanism 4 includes a telescopic arm winch 41, a telescopic arm 42, a cable guiding assembly 43 and a counterweight 44.

[0080] The telescopic arm winch 41 can be rotatably arranged on the frame platform 1, and can be rotated 0-360° under the control of the control mechanism 5. Since the telescopic arm of the cable retracting device is always extended outward during normal driving, the overturning moment requirement of the winch will be increased. The setting of the rotatable telescopic arm winch, when not in operation, retracts the arm frame and rotates it to the length of the body of the cable retracting device, is both beautiful and stable; it is convenient to rotate the position between the telescopic arm winch and the electric shovel under the step alone, without adjusting the whole vehicle to align with the electric shovel; when working, the crawler chain can be parallel to the high step surface of the slope to prevent ground collapse.

[0081] refer to Figure 3 As shown, the telescopic arm winch 41 includes a hinge seat 411, a winding assembly 412 and a motor 413; the hinge seat 411 is composed of a bottom plate and a side plate, and the side plates are two pieces, which are respectively fixed at both ends of the bottom plate; the winding assembly 412 is rotatably arranged between the two side plates, specifically a drum that can wind up cables, which can store cables with a length of 30-50m and is used to provide power to equipment such as electric shovels; the motor 413 is arranged on one of the side plates and cooperates with the winding assembly 412 to drive the winding assembly 412 to rotate.

[0082] The telescopic arm 42 is movably mounted on the telescopic arm winch 41, and can be hydraulically driven to flip up and down with the connection with the telescopic arm winch 41 as a fulcrum; specifically, the telescopic arm 42 has a fixed end and a free end, and the fixed end is arranged on the two side plates. The telescopic arm 42 can be selected from existing equipment on the market, as long as it can be retractable. Because the cable retracting device cannot travel close to the edge of the step, otherwise it may cause the edge of the step to collapse, a telescopic arm that extends toward the step is arranged on the cable retracting device.

[0083] The cable guide assembly 43 is respectively arranged at the fixed end and the free end of the telescopic arm 42. Specifically, a cable guide assembly 43 is installed on the extended end of each telescopic arm. The cable guide assembly 43 includes a plurality of rolling rollers for assisting the cable to be retracted and released without scratching the cable. It can be the existing technology on the market, and no further structural elaboration is made here.

[0084] The counterweight 44 is fixed to the bottom plate of the hinge seat through a bracket in the opposite direction of the extension of the telescopic arm 42 to solve the overturning moment problem of the cable retracting device. The high step may not be vertical and have a certain slope. The cable is suspended at the free end of the telescopic arm, which will cause a large overturning moment to the cable retracting device. If the cantilever length is shortened, the cable is not lowered vertically. In order to prevent the sagging cable from hitting the inclined wall of the step, the cable must be given additional tension, which will also cause a large overturning moment to the cable retracting device. The lowered cable may generate additional impact force on the telescopic arm. The counterweight 44 can play a role in preventing the cable retracting device from overturning under the impact of this impact force.

[0085] The power transformation box 6 is fixed at the middle part of the frame platform 1 and is used for the transformation of high and low voltage electricity.

[0086] The lighting device 7 is arranged on the frame platform 1 and connected to the control mechanism 5 for lighting.

[0087] The control mechanism 5 is arranged at the middle part of the frame platform 1 and is used to control the movement of the traveling mechanism 2, control the cable release and recovery of the cable winding and unwinding mechanism 3 along with the movement of the traveling mechanism 2, control the adjustment of the height and angle of the telescopic arm mechanism 4 for cable supply, and control the lighting of the lighting device 7, etc.

[0088] This device can also include or be connected to a remote control terminal. The remote control terminal acts on the control mechanism 5 to realize the remote operation of the cable winding and unwinding device. It can move in real time following electric mining equipment such as electric shovels by remote control. The operation range after one-time wiring: 400 - 800m (left and right bidirectional of the cable car).

[0089] The cable winding and unwinding device of the present invention has the ability to release and recover the cable simultaneously, which is convenient for transferring the site, can greatly reduce the labor intensity of workers, eliminate potential safety risks, improve the operation safety of personnel and equipment, shorten the power outage time, improve work efficiency, and thus improve the equipment dispatch rate and economic benefits.

[0090] The advantages of the present invention are as follows:

[0091] 1. Operation safety

[0092] The cable winding and unwinding device can be remotely controlled, is convenient to move, and has safe operation.

[0093] The cable winding and unwinding device is equipped with a cantilever mechanism, which can extend outside the bench. Operators can stay away from the bench edge to avoid safety hazards such as falling from height, rib spalling, landslide, and electric shock.

[0094] 2. Large operation range

[0095] The operation range after one-time wiring between the cable car and the high-voltage electric pole: 600 - 1000m (the operation range of the cable car is 300 - 500m on each side of the electric pole).

[0096] 3. Long service life of the cable

[0097] Due to the relatively thick power supply cable (outer diameter about 100mm), large mass (mass per meter about 15kg), and large bench drop (maximum height about 80m), when the cable is lowered, without a traction rope, relying solely on manual dragging of the cable, the cable is subjected to large forces (the gravity is as high as more than 1 ton at 80m in length), which will cause the cable to deform and elongate. Coupled with the inevitable friction with the bench wall surface, it is extremely easy to cause damage to the cable outer skin (insulation layer), shorten the service life of the cable, increase the maintenance workload, and even lead to premature scrapping.

[0098] Since the telescopic arm and the cable guiding assembly are added to this device, when the cable is lowered from a high step, the force on the cable is small, and the friction between the cable and the step wall can be avoided, preventing damage to the cable. Therefore, the service life of the cable is long.

[0099] 4. High working efficiency

[0100] The cable winding and unwinding device is convenient to operate, flexible to mobilize (remote control), and has high working efficiency.

[0101] 5. Low labor intensity

[0102] Laying cables manually has a high labor intensity, is time-consuming and laborious, and has extremely poor safety. Laying cables with the cable winding and unwinding device is light in operation (remote control), not only has a low labor intensity, can greatly liberate the labor force, reduce the number of personnel, but also has high efficiency and safe operation.

[0103] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0104] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cable winding and unwinding device, characterized in that, it includes: A frame platform; A traveling mechanism, arranged below the frame platform, driving the cable winding and unwinding device to move; A wire winding and unwinding mechanism, arranged above the frame platform, at least used for winding and unwinding the cable; A telescopic arm mechanism, arranged above the frame platform, at least capable of adjusting the cable supply height of the cable winding and unwinding device for different heights required for operations. The telescopic arm is movably installed on the telescopic arm winch and can be hydraulically driven to turn up and down with the connection point with the telescopic arm winch as the fulcrum; the telescopic arm has a fixed end and a free end, and the fixed end is arranged on both side plates; A control mechanism, arranged above the frame platform and respectively connected to the traveling mechanism, the wire winding and unwinding mechanism and the telescopic arm mechanism, at least used for controlling the traveling of the traveling mechanism, controlling the wire winding and unwinding mechanism to unwind and recycle the cable as the traveling mechanism moves, and controlling the telescopic arm mechanism to adjust the cable supply height. The wire winding and unwinding mechanism includes: A wire winding and unwinding support, fixed above the frame platform; A cable reel, rotatably installed on the wire winding and unwinding support; A first power device, connected to the control mechanism and acting on the cable reel to drive the cable reel to rotate. The wire winding and unwinding mechanism further includes a wire arranging lead screw assembly. When the cable reel winds the cable, the wire arranging lead screw assembly arranges the cable to be wound under the action of the control mechanism. The wire arranging lead screw assembly includes: A mounting seat, fixed on the wire winding and unwinding support; A guide rail, fixedly arranged on the mounting seat; A lead screw structure, connected to the mounting seat through a bearing and arranged parallel to the guide rail; A wire arranger, slidably arranged on the guide rail, and the wire arranger can reciprocally move along the guide rail under the action of the lead screw structure; The telescopic arm mechanism includes: A telescopic arm winch, rotatably arranged on the frame platform; A telescopic arm, movably installed on the telescopic arm winch and capable of turning up and down with the connection point with the telescopic arm winch as the fulcrum; A cable guiding assembly, respectively arranged at the fixed end and the free end of the telescopic arm to assist in cable winding and unwinding. A cable guiding assembly is arranged at the extending end of each section of the telescopic arm. The cable guiding assembly includes a number of rollers arranged in a rolling manner. The telescopic arm winch includes: A hinge seat, composed of a bottom plate and side plates. There are two side plates, respectively fixed at both ends of the bottom plate; A winding assembly, rotatably arranged between the two side plates; A second power device, arranged on one of the side plates and cooperating with the winding assembly to drive the winding assembly to rotate; The fixed end of the telescopic arm is arranged on the side plate. The telescopic arm mechanism further includes a counterweight block, which is fixed on the hinge base bottom plate through a bracket in the opposite direction of the extension of the telescopic arm. The traveling mechanism includes a traveling bracket, a traveling motor, a driving wheel arranged on the traveling bracket and connected to the traveling motor, and a crawler chain covering the periphery of the driving wheel. The traveling motor drives the crawler chain through the driving wheel to realize the traveling of the cable winding and unwinding device. The cable winding and unwinding device further includes a transformer box, which is fixed on the frame platform and is at least used for the conversion of high and low voltage electricity. It also includes a lighting device, which is arranged on the frame platform and connected to the control mechanism for lighting.

Images