Traction device for belt conveyor and method of using the same

Abstract

The present application relates to a traction device for a belt conveyor, wherein a roller assembly is connected to a frame in a rolling manner, a hydraulic support assembly is disposed at one end of the frame, and a control module and a first drive motor are disposed at the other end of the frame, wherein one end of the frame faces away from the other end of the frame, the first drive motor is connected to the roller assembly, and the first drive motor can drive the roller assembly to rotate relative to the frame, and the control module is electrically connected to the hydraulic support assembly, and the control module can control the hydraulic support assembly to switch between a leveling state and a retracted state. The above solution can solve the problem that in a sloping roadway, a portion of the roller of the tractor may become suspended, resulting in unstable traction performance. At the same time, the tractor is also difficult to level, which causes the conveying direction of the belt conveyor to deviate, and material is easily spilled along the edge of the conveyor belt, resulting in poor conveying performance of the belt conveyor, and further resulting in poor traction effect of the tractor.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic cylinder sleeve maintenance, in particular to a traction device for a belt conveyor. Background Art

[0002] Belt conveyors are part of the coal transportation system, which refers to the lifting and transportation routes and means that transport coal from the mining area to the surface through a series of connected tunnels and shafts. One end of the belt conveyor needs to be constantly moved and adjusted as the coal mining face advances, while the other end needs to be stably fixed to the surface to enable coal to be transported from underground to the surface. To ensure long-distance and stable transportation performance, the belt conveyor is pulled by wire ropes. The existing auxiliary system has complex lines and many links, especially the auxiliary transportation of the coal mining area chute, which uses a small winch multi-stage relay transportation method, which occupies a lot of equipment and leads to a large maintenance workload.

[0003] In order to solve the above problems, in the related art, the Chinese utility model with patent number 2011200005948 provides a tractor for wire rope transportation, which is a tractor used to ensure that the load vehicle passes through the wheel system smoothly in the endless rope transportation system. The entire tractor has a symmetrical structure, including a car body, two pairs of wheels, a turntable, a turntable cover, a guide arm, a drum, a claw brake device, a wire rope, a wire rope pressure block, a wedge fixing frame, a wedge, two sets of curved rail guard wheel groups and a cast iron butt. The tractor has eight wheels and is more stable. It uses wedges to fix the wire rope, which is safer and more reliable. The car is equipped with a claw brake device, which can achieve emergency braking in the event of a wire rope breakage. The car is also provided with a rope storage drum, which can store the excess wire rope that is not temporarily used.

[0004] During the use of the above-mentioned tractor, although the tractor has eight wheels, which makes it stable, when encountering a tunnel with a certain slope, some of the eight wheels will be suspended in the air, resulting in unstable traction performance of the tractor. At the same time, it is difficult for the tractor to be leveled when encountering a sloping tunnel. The wire rope is not leveled, resulting in the conveying direction of the conveyor belt of the belt conveyor being skewed, and the coal is easily leaked along the edge of the conveyor belt, resulting in poor conveying performance of the belt conveyor, and then resulting in poor traction effect of the tractor. Summary of the Invention

[0005] Based on this, a traction device for a belt conveyor is provided to solve the problem that when encountering a tunnel with a certain slope, some of the eight wheels will be suspended in the air, thereby causing the traction performance of the tractor to be unstable. At the same time, it is also difficult for the tractor to be leveled when encountering a sloping tunnel. The wire rope is not leveled, causing the conveying direction of the conveyor belt of the belt conveyor to be skewed, and the coal is easily leaked along the edge of the conveyor belt, resulting in poor conveying performance of the belt conveyor, and then leading to poor traction effect of the tractor.

[0006] A traction device for a belt conveyor comprises a frame, a control module, a first drive motor, a roller assembly and a hydraulic support assembly, wherein the roller assembly is rollingly connected to one end of the frame, the hydraulic support assembly is arranged at one end of the frame, and the control module and the first drive motor are arranged at the other end of the frame, wherein one end of the frame is opposite to the other end of the frame, the first drive motor is connected to the roller assembly, and the first drive motor can drive the roller assembly to rotate relative to the frame, the control module is electrically connected to the hydraulic support assembly, and the control module can control the hydraulic support assembly to switch between a leveling state and a retracted state, when the control module controls the hydraulic support assembly to be in the leveling state, the hydraulic support assembly supports the frame; when the control module controls the hydraulic support assembly to be in the retracted state, the roller assembly supports the frame.

[0007] Preferably, in the above-mentioned traction device for a belt conveyor, the frame includes a first sub-frame and a second sub-frame, the roller assembly includes a driving roller assembly, a driven roller assembly, a transmission shaft and an auxiliary roller assembly, the first sub-frame is hingedly connected to the second sub-frame, the driving roller assembly and the driven roller assembly are both rotatably connected to the first sub-frame, the first driving motor is provided in the first sub-frame, the first driving motor is meshed with the driving roller assembly, the driving roller assembly is meshed with one end of the transmission shaft, the other end of the transmission shaft is meshed with the driven roller assembly, the auxiliary wheel is rotatably connected to the second sub-frame, there are multiple hydraulic support assemblies, a part of the multiple hydraulic support assemblies are all arranged on the periphery of the first sub-frame, and the other part of the multiple hydraulic support assemblies are all arranged on the periphery of the second sub-frame, the control module is provided on the first sub-frame, and the control module is electrically connected to the multiple hydraulic support assemblies.

[0008] Preferably, the above-mentioned traction device for a belt conveyor further includes a second drive motor, a third drive motor, a first winch group, a first wire rope group, a second winch group and a second wire rope group, the second drive motor is arranged on the first sub-frame, the first winch group is rotatably connected to the first sub-frame, the second drive motor and the first winch group are driven by a first transmission belt group, the first wire rope group is wound around the first winch group, the third drive motor is arranged on the second sub-frame, the second winch group is rotatably connected to the second sub-frame, the third drive motor and the second winch group are driven by a second transmission belt group, and the second wire rope group is wound around the second winch group.

[0009] Preferably, the above-mentioned traction device for a belt conveyor further includes a third winch group, a third steel rope group, a fourth winch group and a fourth steel rope group, the third winch group is rotatably connected to the first sub-frame, the third steel rope group is wound around the third winch group, the fourth winch group is rotatably connected to the second sub-frame, and the fourth steel rope group is wound around the fourth winch group.

[0010] Preferably, the above-mentioned traction device for a belt conveyor further includes a wire rope locking assembly, which is arranged on the second sub-frame, one end of the first wire rope group and one end of the second wire rope group both pass through the wire rope locking assembly, and the first wire rope group and the second wire rope group can both be locked and matched with the wire rope locking assembly.

[0011] Preferably, in the above-mentioned traction device for a belt conveyor, a belt supporting assembly is detachably provided on the other end of the frame, and a belt lifting assembly is provided on the other end of the frame.

[0012] Preferably, the above-mentioned traction device for a belt conveyor further includes a distance measuring sensor, which is arranged at one end of the frame adjacent to the hydraulic support assembly, and the distance measuring sensor is electrically connected to the control module. The distance measuring sensor is used to measure the actual distance between one end of the frame and the ground.

[0013] Based on the above-mentioned traction device, a method of use is also disclosed, which is applicable to the above-mentioned traction device for belt conveyor. The method of use includes:

[0014] S10. The control module controls the hydraulic support assembly to be in the retracted state, the first drive motor drives the roller assembly to rotate, the frame moves to the first position as the roller assembly rotates, and the first drive motor stops driving the roller assembly to rotate;

[0015] S20. The control module controls the hydraulic support assembly to be in the leveling state.

[0016] Preferably, the above method of use further includes:

[0017] S30. The second drive motor drives the first winch assembly to rotate, and the first wire rope assembly rotates with the first winch assembly. The third drive motor drives the second winch assembly to rotate, and the second wire rope assembly rotates with the first winch assembly.

[0018] S40. When the first steel wire rope assembly is broken, the second drive motor and the third winch assembly are coupled via the first drive belt assembly, the second drive motor drives the third winch assembly to rotate, and the third steel wire rope assembly rotates along with the third winch assembly;

[0019] S50. When the second steel wire rope group is in a broken state, the third drive motor and the fourth winch group are coupled through the second transmission belt group, the third drive motor drives the fourth winch group to rotate, and the fourth steel wire rope group rotates with the fourth winch group.

[0020] Preferably, in the above-mentioned method of use, in the step S20, the distance measuring sensor transmits a signal of the measured actual distance to the control module, and the control module controls the hydraulic support assembly to extend a distance equal to the difference between the actual distance and the preset distance.

[0021] The technical solution adopted in this application can achieve the following beneficial effects:

[0022] In the traction device for a belt conveyor disclosed in the present application, the roller assembly is rollingly connected to one end of the frame, the hydraulic support assembly is arranged at one end of the frame, and the control module and the first drive motor are arranged at the other end of the frame, wherein one end of the frame is opposite to the other end of the frame, the first drive motor is connected to the roller assembly, and the first drive motor can drive the roller assembly to rotate relative to the frame, the control module is electrically connected to the hydraulic support assembly, and the control module can control the hydraulic support assembly to switch between a leveling state and a retracted state. When the control module controls the hydraulic support assembly to be in a leveling state, the hydraulic support assembly supports the frame; when the control module controls the hydraulic support assembly to be in a retracted state, the roller assembly supports the frame.

[0023] During the use of the traction device, the traction device is placed on the ground, the control module controls the hydraulic support assembly to be in a retracted state, the roller assembly supports the frame, and the first drive motor drives the roller assembly to rotate, so that the frame, the control module, the first drive motor and the hydraulic support assembly move accordingly. When the traction device moves to the first position (the first position refers to the designated position that the traction device needs to reach in order to cooperate with the belt conveyor), the control module controls the hydraulic support assembly to be in a leveling state. The hydraulic support assembly is located between the ground and the frame. The hydraulic support assembly supports the frame to fix the traction device relative to the ground to avoid the wheels being suspended in the air and causing the center of gravity of the traction device to be unstable. At the same time, the hydraulic support assembly can level the position of the traction device and the ground, thereby ensuring the traction effect of the traction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of the traction device disclosed in an embodiment of the present application at one angle;

[0025] Figure 2 A schematic structural diagram of the traction device disclosed in an embodiment of the present application at another angle;

[0026] Figure 3 A top view of the traction device disclosed in an embodiment of the present application;

[0027] Figure 4 A bottom view of the traction device disclosed in an embodiment of the present application;

[0028] Figure 5 A front view of a traction device disclosed in an embodiment of the present application;

[0029] Figure 6 It is a left side view of the traction device disclosed in the embodiment of the present application;

[0030] Figure 7 : In the case of a sunken ground, the first sub-frame 111, the second sub-frame 112 small roller simplified schematic diagram of the original design structure;

[0031] Figure 8 : Figure 7 Simplified schematic diagram of the improved limiter structure.

[0032] Including: frame 110, first sub-frame 111, first upper limiter 1111, first lower limiter 1112, small supporting wheel 1113, second sub-frame 112, second upper limiter 1121, second lower limiter 1122, first drive motor 120, roller assembly 130, drive roller assembly 131, driven roller assembly 132, transmission shaft 133, auxiliary roller assembly 134, hydraulic support assembly 140, second drive motor 151, third drive motor 152, first winch group 153, second winch group 154, first wire rope group 155, second wire rope group 156, third winch group 161, fourth winch group 162, third wire rope group 163, fourth wire rope group 164, wire rope locking assembly 170, belt support assembly 181, belt lifting assembly 182. Implementation Method

[0033] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0034] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be an element centered thereon. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "bottom end," "top end," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] Please refer to Figures 1 to 8 The present application discloses a traction device for a belt conveyor. The disclosed traction device includes a frame 110, a control module, a first drive motor 120, a roller assembly 130 and a hydraulic support assembly 140.

[0037] Among them, the frame 110 can provide an installation basis for the control module, the first drive motor 120, the roller assembly 130 and the hydraulic support assembly 140. The roller assembly 130 is a moving functional component of the traction device. The first drive motor 120 can provide driving force for the roller assembly 130. The hydraulic support assembly 140 is a leveling support functional component of the traction device. The hydraulic support assembly 140 can be a hydraulic support jack, a supporting hydraulic rod, etc., and this application does not impose any restrictions on this. The control module is the control functional component of the traction device. The control module can be a module in which a hydraulic valve and an electrical control component are connected together, or a module in which a one-way valve, a hydraulic valve and a control valve are connected together. This application does not impose any restrictions on this.

[0038] Specifically, the roller assembly 130 is rollingly connected to one end of the frame 110, the hydraulic support assembly 140 is arranged at one end of the frame 110, and the control module and the first drive motor 120 are arranged at the other end of the frame 110, wherein one end of the frame 110 is opposite to the other end of the frame 110, the first drive motor 120 is connected to the roller assembly 130, and the first drive motor 120 can drive the roller assembly 131 to rotate relative to the frame 110, the control module is electrically connected to the hydraulic support assembly 140, and the control module can control the hydraulic support assembly 140 to switch between a leveling state and a retracted state. When the control module controls the hydraulic support assembly 140 to be in a leveling state, the hydraulic support assembly 140 supports the frame 110; when the control module controls the hydraulic support assembly 140 to be in a retracted state, the roller assembly 130 supports the frame 110.

[0039] During the use of the traction device, the traction device is placed on the ground, the control module controls the hydraulic support assembly 140 to be in a retracted state, the roller assembly 130 supports the frame 110, and the first drive motor 120 drives the roller assembly 131 to rotate, so that the frame 110, the control module, the first drive motor 120 and the hydraulic support assembly 140 move accordingly. When the traction device moves to the first position (the first position refers to the designated position that the traction device needs to reach in order to cooperate with the belt conveyor), the control module controls the hydraulic support assembly 140 to be in a leveling state. The hydraulic support assembly 140 is located between the ground and the frame 110. The hydraulic support assembly 140 supports the frame 110 to fix the traction device relative to the ground, avoiding the wheels being suspended in the air and causing the center of gravity of the traction device to be unstable. At the same time, the hydraulic support assembly 140 can level the position of the traction device and the ground, thereby ensuring the traction effect of the traction device.

[0040] In the embodiment of the present application, the frame 110 may include a first sub-frame 111 and a second sub-frame 112, and the roller assembly 130 may include a driving roller assembly 131, a driven roller assembly 132, a transmission shaft 133 and an auxiliary roller assembly 134. Specifically, the first sub-frame 111 is hingedly connected to the second sub-frame 112 so that when the traction device moves in a lane with a certain slope, the hinge structure has a degree of rotational freedom in one direction, thereby enabling the driving roller assembly 131, the driven roller assembly 132 and the auxiliary roller assembly 134 to contact the ground to the greatest extent, and the driving roller assembly 131 and the driven roller assembly 132 are both rotated in parallel with the first sub-frame 111. The first drive motor 120 is provided on the first sub-frame 111, and the first drive motor 120 is engaged with the driving roller assembly 131, and the driving roller assembly 131 is engaged with one end of the transmission shaft 133, and the other end of the transmission shaft 133 is engaged with the driven roller assembly 132, so that the first drive motor 120 can drive the driving roller assembly 131 to rotate, and the transmission shaft 133 rotates with the driving roller assembly 131, and the driven roller assembly 132 rotates with the transmission shaft 133, thereby realizing synchronous four-wheel drive and increasing the travel speed. At the same time, the walking speed can be adjusted by controlling the rotation speed of the first drive motor 120, and the auxiliary wheel is connected to the second sub-frame 112 for rotation.

[0041] There are multiple hydraulic support assemblies 140, and a part of the multiple hydraulic support assemblies 140 are arranged on the periphery of the first sub-frame 111, and another part of the multiple hydraulic support assemblies 140 are arranged on the periphery of the second sub-frame 112. The control module is set on the first sub-frame 111, and the control module is electrically connected to the multiple hydraulic support assemblies 140. The above structure arranges multiple hydraulic support assemblies 140 on the first sub-frame 111 and the second sub-frame 112, so that when the control module controls the hydraulic support assemblies 140 to be in a leveling state, the multiple hydraulic support assemblies 140 can support the traction device, while also improving the leveling accuracy.

[0042] In the embodiment of the present application, the disclosed traction device may further include a second drive motor 151, a third drive motor 152, a first winch group 153, a first wire rope group 155, a second winch group 154 and a second wire rope group 156. The first wire rope group 155 and the second wire rope group 156 can provide support for the conveyor belt of the belt conveyor. Specifically, the second drive motor 151 is provided on the first sub-frame 111, the first winch group 153 is rotatably connected to the first sub-frame 111, the second drive motor 151 and the first winch group 153 are driven by the first transmission belt group, and the first wire rope group 155 is wound around the first winch group 153 so that the first winch group 153 is driven by the second drive motor 151 through the first transmission belt. The winch group 153 rotates to achieve the retraction or extension of the first wire rope group 155. The third drive motor 152 is provided on the second sub-frame 112. The second winch group 154 is connected to the second sub-frame 112 in rotation. The third drive motor 152 and the second winch group 154 are driven by the second transmission belt group. The second wire rope group 156 is wound around the second winch group 154 so that the second winch group 154 is driven to rotate by the third drive motor 152 through the second transmission belt to achieve the retraction or extension of the second wire rope group 156. The above structure satisfies the retraction or extension of the first wire rope group 155 and the second wire rope group 156 to meet the extension or shortening of the belt conveyor body as the coal mining working face moves.

[0043] In a further technical solution, the disclosed traction device may further include a third winch group 161, a third steel wire rope group 163, a fourth winch group 162 and a fourth steel wire rope group 164. Specifically, the third winch group 161 is rotatably connected to the first sub-frame 110, the third steel wire rope group 163 is wound around the third winch group 161, the fourth winch group 162 is rotatably connected to the second sub-frame 112, and the fourth steel wire rope group 164 is wound around the fourth winch group 162. The above structure is to avoid the first steel wire rope group 155 and the second steel wire rope group 156 from breaking or being damaged, which causes the belt conveyor to need to be shut down for maintenance. By using the third winch group 161, the third steel wire rope group 163, the fourth winch group 162 and the fourth steel wire rope group The wire rope group 164 replaces the first winch group 153, the first wire rope group 155, the second winch group 154 and the second wire rope group 156, wherein the first transmission belt is separated from the first winch group 153 and cooperates with the third winch group 161 for transmission, and the second drive motor 151 drives the third winch group 161 to rotate through the first transmission belt to achieve the retraction or extension of the third wire rope group 163; the second transmission belt is separated from the second winch group 154 and cooperates with the fourth winch group 162 for transmission, and the second drive motor 151 drives the fourth winch group 162 to rotate through the first transmission belt to achieve the retraction or extension of the fourth wire rope group 164, thereby realizing quick-release replacement, thereby ensuring that the belt conveyor can continue to work.

[0044] Of course, in another optional solution, in order to avoid the insufficiency of the length of the first wire rope group 155 and the second wire rope group 156, which causes the traction device to be unable to further cooperate with the movement of the coal mining and excavation working face and extend, the disclosed traction device can also include a third winch group 161, a third wire rope group 163, a fourth winch group 162 and a fourth wire rope group 164. Specifically, the third winch group 161 is rotatably connected to the first sub-frame 110, the third wire rope group 163 is wound around the third winch group 161, the fourth winch group 162 is rotatably connected to the second sub-frame 112, and the fourth wire rope group 164 is wound around the fourth winch group 162. After the length of the wire of the first wire rope group 155 is used up, its end is connected to the wire end of the third wire rope group 163, and the third wire rope group 163 can be connected to the first wire rope group 155. After the wire length of the second wire rope group 156 is used up, its end is connected to the wire end of the fourth wire rope group 164. The fourth wire rope group 164 can be connected to the second wire rope group 156. The second drive motor 151 drives the first winch group 153 to rotate through the first transmission belt to achieve the retraction or extension of the first wire rope group 155, and the third wire rope group 163 can retract or extend with the first wire rope group 155. Similarly, the third drive motor 152 drives the second winch group 154 to rotate through the second transmission belt to achieve the retraction or extension of the second wire rope group 156, and the fourth wire rope group 164 can retract or extend with the second wire rope group 156, thereby further improving the traction effect of the traction device. The effect of this embodiment is that the backup and extension of the wire rope length are achieved, and the backup wire rope is pre-wound on the first winch group 153, so that the drive can be switched in a very short time and with very simple operations when in use.

[0045] In a further technical solution, the disclosed traction device may also include a wire rope locking assembly 170, which is arranged on the second sub-frame 112, and one end of the first wire rope group 155 and one end of the second wire rope group 156 both pass through the wire rope locking assembly 170, and the first wire rope group 155 and the second wire rope group 156 can be locked and matched with the wire rope locking assembly 170, so that the first wire rope group 155 and the second wire rope group 156 can be in a tensioned state, thereby ensuring that the first wire rope group 155 and the second wire rope group 156 can provide stable support for the conveyor belt.

[0046] In the embodiment of the present application, a belt support assembly 181 is detachably provided at the other end of the frame 110, and the belt support assembly 181 can provide support for the conveyor belt. A belt lifting assembly 182 is provided on the other end of the frame 110 to enable the conveyor belt to adjust its own slope according to needs. At the same time, the belt lifting assembly 182 raises the height of the conveyor belt to increase the spatial volume between the conveyor belt and the other end of the frame 110, thereby facilitating the staff to install or remove other components at the other end of the frame 110.

[0047] In an embodiment of the present application, the disclosed traction device may further include a distance measuring sensor. Specifically, the distance measuring sensor is arranged at one end of the frame 110 adjacent to the hydraulic support assembly 140. The distance measuring sensor is electrically connected to the control module. The distance measuring sensor is used to measure the actual distance between one end of the frame 110 and the ground. The distance measuring sensor can transmit the signal of the actual distance to the control module, so that the control module can make the hydraulic support assembly 140 accurately extend and contact the ground when it is in a leveling state based on the difference between the actual distance and the length of the support end of the hydraulic support assembly 140 in the retracted state, thereby improving the leveling accuracy of the traction device and the ground.

[0048] In this solution, the first sub-frame 111 and the second sub-frame 112 are hingedly connected. Compared to a single integral frame, when the frame as a whole is relatively long and cannot contact the ground, the belt carrying materials will run at high speed. Because the frame cannot contact the ground, its stability is very poor and it can easily be driven by inertia to deflect or tip over, causing serious accidents. This solution makes the frame into a two-section intersecting structure. This not only shortens the length of the frame unit, but also allows the intermediate intersecting connection to adapt to uneven ground conditions, ensuring that the first sub-frame 111 and the second sub-frame 112 are in contact with the ground. When the belt runs at high speed, the frame body is in stable contact with the ground, providing high support stability, fundamentally solving the problem caused by frame instability.

[0049] In this solution, the second steel rope group 156 and the first steel rope group 155 are respectively arranged on two sub-frames, rather than using the same sub-frame to connect the second steel rope group 156 and the first steel rope group 155. The first sub-frame 111 and the second sub-frame 112 operate independently, and the second steel rope group 156 is connected to the second sub-frame 112, and the first steel rope group 155 is connected to the first sub-frame 111. The conveyor belt of the belt conveyor may include an upper belt and a lower belt. Since the second steel rope group 156 supports the upper belt and the lower belt, the conveyor belt of the belt conveyor may include an upper belt and a lower belt. The upper belt is carried, and the first steel wire rope group 155 carries the lower belt. It is known to those skilled in the art that the upper belt and the lower belt have opposite running directions. During operation, the upper belt and the lower belt respectively exert pulling forces in opposite directions on the second sub-frame 112 and the first sub-frame 111. The two sub-frames are connected by a cross connection. The forces in opposite directions make the forces between the two sub-frames in opposite directions. The forces brought by the upper belt and the lower belt will be consumed and offset inside the frame, thereby ensuring that the two sub-frames can be stably placed on the ground. If the original design is adopted to connect the second steel wire rope group 156 and the first steel wire rope group 155 to the same sub-frame, the other frame will be useless and can only serve as a storage for spare steel wire ropes. Therefore, the hinged design of the two sub-frames of this solution can not only achieve the purpose of adaptive deformation to adapt to different flatness of the ground, but also cooperate with each other and achieve the purpose of internal consumption of forces in opposite directions.

[0050] However, the two sub-frames connected in the two sections can adapt to uneven ground, but when the ground is concave, the frame connection will also tilt downward, and the two frames will take on an "concave" shape. At this time, in the original design, since the lower belt only uses a small supporting wheel to drag the belt, when passing through the downward concave ground, the high-speed running lower belt will have a "floating problem" because there is no downward pressing component on the top, and the lower belt has no load-bearing material and is light in weight, which will stick to the lower surface of the upper belt, causing serious friction, which will not only damage the belt, but also cause the belt temperature to rise rapidly, easily causing accelerated aging of the belt, or even high-temperature burning. Therefore, in this solution, the small supporting wheel is designed to have a structure consistent with the upper tugwheel, that is, it is designed as a first lower limiter 1112 to press down the lower belt to prevent it from floating, so that the upper and lower belts always maintain a fixed distance and will not contact.

[0051] At the same time, when passing through the sunken ground, the upper belt running at high speed (the average speed of the existing belt conveyor is 4.5 meters per second, and the average speed of some high-efficiency belt conveyors can reach 5.5 meters per second) is loaded with materials. When passing through, the materials will be bounced up due to the violent bumps, causing the materials to fly and dust to rise, resulting in "fog" in the narrow space of the tunnel. Therefore, this solution designs the upper and lower supporting rollers near the hinge, which are respectively the first upper limiter 1111, the first lower limiter 1112, the second upper limiter 1121, and the second lower limiter 1122. The first upper limiter 1111, the first lower limiter 1112, the second upper limiter 1121, and the second lower limiter 1122 have the same structure and are connected to the first sub-frame 111 and the second sub-frame 112 in a flexible connection. This solution only needs to design 1-3 groups of small supporting rollers near the hinge as limiter structures.

[0052] Specifically, the lower parts of the first upper limiter 1111, the first lower limiter 1112, the second upper limiter 1121 and the second lower limiter 1122 are connected to the first sub-frame 111 by springs, which are used to buffer and release the bumpy force received by the belt when the belt runs at high speed, so as to prevent the material from flying.

[0053] Based on the above-mentioned traction device for a belt conveyor, the present application further discloses a method of use, which is applicable to the above-mentioned traction device for a belt conveyor. The method of use includes:

[0054] S10. The control module controls the hydraulic support assembly 140 to be in a retracted state. The first drive motor 120 drives the roller assembly 131 to rotate. The frame 110 moves to the first position as the roller assembly 130 rotates. The first drive motor 120 stops driving the roller assembly 131 to rotate.

[0055] In this step, the first drive motor 120 drives the roller assembly 131 to rotate, so that the frame 110, the control module, the first drive motor 120 and the hydraulic support assembly 140 move accordingly. When the traction device moves to the first position (the first position refers to the designated position that the traction device needs to reach in order to cooperate with the belt conveyor), the first drive motor 120 stops driving the roller assembly 131 to rotate.

[0056] S20. The control module controls the hydraulic support assembly 140 to be in a leveling state.

[0057] In this step, the hydraulic support assembly 140 is in contact between the ground and the frame 110. The hydraulic support assembly 140 supports the frame 110 to fix the traction device relative to the ground, avoiding the wheels being suspended in the air and causing the center of gravity of the traction device to be unstable. At the same time, the hydraulic support assembly 140 can level the position of the traction device and the ground, thereby ensuring the traction effect of the traction device.

[0058] In an optional solution, it may also include:

[0059] S30. The second drive motor 151 drives the first winch group 153 to rotate, the first wire rope group 155 rotates with the first winch group 153, the third drive motor 152 drives the second winch group 154 to rotate, and the second wire rope group 156 rotates with the first winch group 153;

[0060] S40. When the first wire rope group 155 is in a broken state, the second drive motor 151 and the third winch group 161 are driven by the first drive belt group, the second drive motor 151 drives the third winch group 161 to rotate, and the third wire rope group 163 rotates with the third winch group 161;

[0061] S50. When the second steel wire rope group 156 is in a broken state, the third drive motor 152 and the fourth winch group 162 are coupled through the second transmission belt group, the third drive motor 152 drives the fourth winch group 162 to rotate, and the fourth steel wire rope group 164 rotates with the fourth winch group 162.

[0062] In another optional solution, in step S20, the ranging sensor transmits the signal of the measured actual distance to the control module, and the control module controls the hydraulic support assembly 140 to extend the distance of the difference between the actual distance and the preset distance, wherein the preset distance refers to the length of the support end of the hydraulic support assembly 140 in the retracted state, and the extended end of the hydraulic support assembly 140.

[0063] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The above embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A traction device for a belt conveyor, characterized in that: The invention comprises a frame, a control module, a first drive motor, a roller assembly and a hydraulic support assembly, wherein the roller assembly is rollingly connected to one end of the frame, the hydraulic support assembly is arranged at one end of the frame, and the control module and the first drive motor are arranged at the other end of the frame, wherein one end of the frame is opposite to the other end of the frame, the first drive motor is connected to the roller assembly, and the first drive motor can drive the roller assembly to rotate relative to the frame, the control module is electrically connected to the hydraulic support assembly, and the control module can control the hydraulic support assembly to switch between a leveling state and a retracted state, when the control module controls the hydraulic support assembly to be in the leveling state, the hydraulic support assembly supports the frame; when the control module controls the hydraulic support assembly to be in the retracted state, the roller assembly supports the frame; The frame includes a first sub-frame and a second sub-frame, the roller assembly includes a driving roller assembly, a driven roller assembly, a transmission shaft and an auxiliary roller assembly, the first sub-frame is hingedly connected to the second sub-frame, the driving roller assembly and the driven roller assembly are both rotatably connected to the first sub-frame, the first driving motor is provided on the first sub-frame, the first driving motor is meshed with the driving roller assembly, the driving roller assembly is meshed with one end of the transmission shaft, the other end of the transmission shaft is meshed with the driven roller assembly, the auxiliary roller assembly is rotatably connected to the second sub-frame, the hydraulic support assembly is multiple, a part of the multiple hydraulic support assemblies are all arranged on the periphery of the first sub-frame, and the other part of the multiple hydraulic support assemblies are all arranged on the periphery of the second sub-frame, the control module is provided on the first sub-frame, and the control module is electrically connected to the multiple hydraulic support assemblies; The traction device for the belt conveyor also includes a second drive motor, a third drive motor, a first winch group, a first steel rope group, a second winch group and a second steel rope group. The second drive motor is arranged on the first sub-frame, the first winch group is rotatably connected to the first sub-frame, the second drive motor and the first winch group are driven by a first transmission belt group, the first steel rope group is wound around the first winch group, the third drive motor is arranged on the second sub-frame, the second winch group is rotatably connected to the second sub-frame, the third drive motor and the second winch group are driven by a second transmission belt group, and the second steel rope group is wound around the second winch group.

2. The traction device for a belt conveyor according to claim 1, characterized in that: It also includes a third winch group, a third steel rope group, a fourth winch group and a fourth steel rope group. The third winch group is rotatably connected to the first sub-frame, the third steel rope group is wound around the third winch group, the fourth winch group is rotatably connected to the second sub-frame, and the fourth steel rope group is wound around the fourth winch group.

3. The traction device for a belt conveyor according to claim 2, characterized in that: It also includes a wire rope locking assembly, which is arranged on the second sub-frame. One end of the first wire rope group and one end of the second wire rope group both pass through the wire rope locking assembly, and the first wire rope group and the second wire rope group can both be locked and matched with the wire rope locking assembly.

4. The traction device for a belt conveyor according to claim 1, characterized in that: The other end of the frame is detachably provided with a belt supporting assembly, and the other end of the frame is provided with a belt lifting assembly.

5. The traction device for a belt conveyor according to claim 1, characterized in that: It also includes a distance measuring sensor, which is arranged at one end of the frame adjacent to the hydraulic support assembly. The distance measuring sensor is electrically connected to the control module and is used to measure the actual distance between one end of the frame and the ground.

6. A method of use, applicable to the traction device for a belt conveyor according to any one of claims 1 to 5, characterized in that: The method of use includes: S10. The control module controls the hydraulic support assembly to be in the retracted state, the first drive motor drives the roller assembly to rotate, the frame moves to the first position as the roller assembly rotates, and the first drive motor stops driving the roller assembly to rotate; S20. The control module controls the hydraulic support assembly to be in the leveling state.

7. A method of use, applicable to the traction device for a belt conveyor according to claim 2, characterized in that: The method of use includes: S10. The control module controls the hydraulic support assembly to be in the retracted state, the first drive motor drives the roller assembly to rotate, the frame moves to the first position as the roller assembly rotates, and the first drive motor stops driving the roller assembly to rotate; S20. The control module controls the hydraulic support assembly to be in the leveling state; S30. The second drive motor drives the first winch assembly to rotate, and the first wire rope assembly rotates with the first winch assembly. The third drive motor drives the second winch assembly to rotate, and the second wire rope assembly rotates with the first winch assembly. S40. When the first steel wire rope assembly is broken, the second drive motor and the third winch assembly are coupled via the first drive belt assembly, the second drive motor drives the third winch assembly to rotate, and the third steel wire rope assembly rotates along with the third winch assembly; S50. When the second steel wire rope group is in a broken state, the third drive motor and the fourth winch group are coupled through the second transmission belt group, the third drive motor drives the fourth winch group to rotate, and the fourth steel wire rope group rotates with the fourth winch group.

Images