Energy-saving lifting winch for coal mine

Abstract

The present invention relates to the technical field of winch lifting, and specifically to an energy-saving lifting winch for a coal mine, comprising a base, a winding assembly, an auxiliary assembly and a switching assembly; the base is arranged above the ground, and an inclined guide rail is arranged on the side; the winding assembly comprises a first drum and a main steel cable, the first drum is perpendicular to the guide rail; one end of the main steel cable is wound around the first drum, and the other end is connected to a mine car; the auxiliary assembly comprises a second drum and an auxiliary steel cable, the second drum is parallel to the first drum; one end of the auxiliary steel cable is wound around the second drum, and the other end is selectively connected to the mine car and the guide rail; when the mine car rises to a preset position, the auxiliary steel cable is connected to the mine car, and the auxiliary steel cable moves in opposite directions to the main steel cable, the component force of the auxiliary steel cable on the mine car in the horizontal direction is opposite to the component force direction of the main steel cable in the horizontal direction, the mine car is pulled in the opposite direction, and the risk of the mine car tilting toward the side of the guide rail is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of winch lifting, and in particular to an energy-saving lifting winch for a coal mine. Background Art

[0002] In the field of coal mine hoisting winches, traditional hoisting winches usually include components such as motors, brakes, reducers, drums and wire arranging devices, which are used to realize the lifting of mine cars on inclined rails. However, when the steel cable of the hoisting winch in the prior art is wound on the drum of the winch, due to the wire arranging effect of the wire arranging device, there is a relative angle between the steel cable and the path of the mine car rising along the inclined rail, which will cause the steel cable to generate a component force in the direction perpendicular to the moving path of the mine car. As the height of the mine car rises, the distance from the drum decreases, the greater the change in the angle between the steel cable and the moving direction of the mine car, the greater the force perpendicular to the moving direction of the mine car, thereby increasing the risk of the mine car derailing and overturning. Summary of the invention

[0003] The invention provides an energy-saving hoisting winch for a coal mine, so as to solve the problem in the prior art that a mine car has a risk of overturning when a steel cable drives the mine car to rise.

[0004] A coal mine energy-saving hoisting winch of the present invention adopts the following technical solution:

[0005] A coal mine energy-saving hoisting winch comprises a base, a winding assembly, an auxiliary assembly and a switching assembly; the base is arranged above the ground, and a slanted guide rail is arranged on the side, and the upper end of the guide rail is connected with the base to guide the mine car to move upward; the winding assembly comprises a first drum, a first wire arrangement assembly and a main steel cable, the first drum is rotatably installed on the base and is perpendicular to the guide rail; the first wire arrangement assembly is arranged between the first drum and the guide rail, one end of the main steel cable is wound on the first drum, and the other end is connected to the mine car; the first wire arrangement assembly guides the main steel cable to reciprocate along the axial direction of the first drum to change the winding position of the main steel cable on the first drum; the auxiliary assembly comprises a first drum, a first wire arrangement assembly and a main steel cable, the first drum is rotatably installed on the base and is perpendicular to the guide rail; the first wire arrangement assembly is arranged between the first drum and the guide rail, one end of the main steel cable is wound on the first drum, and the other end is connected to the mine car; the first wire arrangement assembly guides the main steel cable to reciprocate along the axial direction of the first drum to change the winding position of the main steel cable on the first drum; the auxiliary assembly comprises a first drum, a first wire arrangement assembly and a main steel cable; ... drum is rotatably installed on the base and is perpendicular to the guide rail; the first drum is rotatably installed on the base and is perpendicular to the guide rail; the The invention comprises a second drum, a second wire arrangement assembly and a secondary steel cable, wherein the second drum is rotatably mounted on the base, and the second drum is parallel to the first drum; the second wire arrangement assembly is arranged between the second drum and the guide rail, one end of the secondary steel cable is wound around the second drum, and the other end is selectively connected to the mine car and the guide rail; the second wire arrangement assembly guides the secondary steel cable to move back and forth along the axial direction of the second drum, changes the winding position of the secondary steel cable on the second drum, and the movement directions of the main steel cable and the secondary steel cable are opposite; the switching assembly causes the secondary steel cable to be detached from the guide rail and connected to the mine car when the mine car rises to a preset position, and causes the secondary steel cable to be detached from the mine car and connected to the guide rail when the mine car descends to a preset position.

[0006] Optionally, an elastic member is arranged between the second drum and the base. When the mine car moves downward, the second drum is driven to rotate by the auxiliary steel cable to store force in the elastic member. When the mine car rises to a preset position and is connected to the auxiliary steel cable, the elastic member causes the second drum to rotate, thereby providing pulling force to the mine car through the auxiliary steel cable.

[0007] Optionally, a first magnetic block is provided on the lower side of the mining car; the switching assembly includes a second magnetic block, a first electromagnetic block and a second electromagnetic block, and the second magnetic block is provided at a preset position of the guide rail; the first electromagnetic block and the second electromagnetic block are fixedly connected and connected to the auxiliary steel cable; the first electromagnetic block is adsorbed to the first magnetic block when the power is on, and is detached from the first magnetic block when the power is off; the second electromagnetic block is adsorbed to the second magnetic block when the power is on, and is detached from the second magnetic block when the power is off.

[0008] Optionally, the switching component also includes a fixed block and a buffer spring, the fixed block is fixed to the guide rail, the second magnetic block is slidably installed on the guide rail along the inclination direction of the guide rail, and is connected to the fixed block through the buffer spring, and the second magnetic block is in a preset position of the guide rail under the action of the buffer spring; the first electromagnetic block and the second electromagnetic block are arranged in sequence in a direction perpendicular to the guide rail, and can respectively fit with the first magnetic block and the second magnetic block at the same time; the first electromagnetic block is powered off after the second electromagnetic block is adsorbed with the second magnetic block, and the second electromagnetic block is powered off after the first electromagnetic block is adsorbed with the first magnetic block.

[0009] Optionally, a first support frame and a second support frame are provided on the base; the first cable arrangement assembly includes a first guide rod and a first slider, the first guide rod is parallel to the first reel and is rotatably installed on the first support frame, and the first guide rod is higher than the first reel; the first slider is axially slidably installed on the first support frame along the first guide rod and is threadedly matched with the first guide rod, and the main steel cable moves driven by the first slider; the second cable arrangement assembly includes a second guide rod and a second slider, the second guide rod is parallel to the second reel and is rotatably installed on the second support frame, and the second guide rod is higher than the second reel; the second slider is axially slidably installed on the second support frame along the second guide rod and is threadedly matched with the second guide rod, and the auxiliary steel cable moves driven by the second slider.

[0010] Optionally, two spiral channels with opposite rotation directions are provided on the first guide rod, and the ends of the two spiral channels are connected, and the midpoint of the spiral channel in the axial direction of the first guide rod is in the same vertical plane as the guide rail; a rotating column for cooperating with the spiral channel is rotatably installed on the first slider, and the rotation of the first guide rod drives the first slider to reciprocate along the spiral channel; the second guide rod has the same structure as the first guide rod and has the same relative position with the guide rail, and the second slider has the same structure as the first slider.

[0011] Optionally, the first guide rod and the first reel are driven by a belt, the second guide rod and the second reel are driven by a belt, and the length of the second guide rod is greater than the length of the first guide rod, and the moving speed of the second slider is greater than the speed of the first slider, so that the first slider and the second slider can be simultaneously and respectively located at the two ends of the first guide rod and the second guide rod when moving in opposite directions.

[0012] Optionally, at least two guide rollers are provided on the first slider and the second slider, and the at least two guide rollers are spaced apart in sequence along the axial direction of the first guide rod or the second guide rod, and are rotatably installed on the first slider or the second slider around a vertical axis; the main steel cable or the auxiliary steel cable passes between the two guide rollers.

[0013] Optionally, a motor for driving the first reel to rotate is disposed on the base.

[0014] Optionally, the elastic member is a coil spring.

[0015] The beneficial effects of the present invention are as follows: when the mine car of the coal mine energy-saving hoisting winch of the present invention rises to a preset position, the auxiliary steel cable is connected to the mine car, and the auxiliary steel cable moves in opposite directions to the main steel cable, and the auxiliary steel cable exerts a force component on the mine car in the horizontal direction in the opposite direction to the force component of the main steel cable in the horizontal direction, and pulls the mine car in the opposite direction, reducing the risk of the mine car tilting to the side of the guide rail. When the mine car rises to a preset position, the auxiliary steel cable is connected to the mine car, which can save the use of the auxiliary steel cable, and can reduce the use cost of the steel cable in some occasions where the guide rail is long and the mine car transportation path is long.

[0016] Furthermore, by arranging a buffer spring, the second electromagnetic block is powered off after the first electromagnetic block is powered on, or the first electromagnetic block is powered on and then powered off, to ensure that the first electromagnetic block and the first magnetic block, the second electromagnetic block and the second magnetic block are adsorbed respectively and then the first electromagnetic block or the second magnetic block is powered off, thereby ensuring that the auxiliary steel cable is connected to the mine car or the guide rail in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of a coal mine energy-saving hoisting winch of the present invention;

[0019] Figure 2 for Figure 1 A front view of

[0020] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0021] Figure 4 for Figure 1 Side view of

[0022] Figure 5It is a structural schematic diagram of a first cable arrangement assembly and a first support frame in an embodiment of a coal mine energy-saving hoisting winch of the present invention;

[0023] Figure 6 for Figure 5 Schematic diagram of the section along the middle BB direction;

[0024] Figure 7 for Figure 6 The enlarged schematic diagram of the center C;

[0025] In the figure: 100, base; 110, guide rail; 120, first support frame; 130, second support frame; 140, motor; 200, winding assembly; 210, first drum; 220, first wiring assembly; 221, first guide rod; 222, first slider; 223, guide roller; 224, rotating column; 230, main steel cable; 300, auxiliary assembly; 310, second drum; 320, second wiring assembly; 330, auxiliary steel cable; 400, mining car; 410, first magnetic block; 500, switching assembly; 510, fixed block; 520, second magnetic block; 530, first electromagnetic block; 540, second electromagnetic block; 550, buffer spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] An embodiment of a coal mine energy-saving hoisting winch of the present invention is as follows Figures 1 to 7 As shown, it includes a base 100 , a winding assembly 200 , an auxiliary assembly 300 and a switching assembly 500 .

[0028] The base 100 is disposed above the ground, and an inclined guide rail 110 is disposed on the side thereof. The upper end of the guide rail 110 is connected to the base 100 to guide the mining car 400 to move upward.

[0029] The winding assembly 200 includes a first drum 210, a first cable assembly 220 and a main steel cable 230. The first drum 210 is rotatably mounted on the base 100 and is perpendicular to the guide rail 110. The first cable assembly 220 is disposed between the first drum 210 and the guide rail 110. One end of the main steel cable 230 is wound around the first drum 210, and the other end is connected to the mine car 400. The first cable assembly 220 guides the main steel cable 230 to reciprocate along the axial direction of the first drum 210, changes the winding position of the main steel cable 230 on the first drum 210, and avoids local accumulation of the main steel cable 230 on the first drum 210.

[0030] The auxiliary assembly 300 includes a second drum 310, a second cable assembly 320 and a secondary steel cable 330. The second drum 310 is rotatably mounted on the base 100 and is parallel to the first drum 210. The second cable assembly 320 is disposed between the second drum 310 and the guide rail 110. One end of the secondary steel cable 330 is wound around the second drum 310, and the other end is selectively connected to the mine car 400 and the guide rail 110. The second cable assembly 320 guides the secondary steel cable 330 to reciprocate along the axial direction of the second drum 310, changes the winding position of the secondary steel cable 330 on the second drum 310, and avoids the secondary steel cable 330 from being locally accumulated on the second drum 310. The main steel cable 230 and the secondary steel cable 330 move in opposite directions along the axial direction of the first drum 210.

[0031] The switching assembly 500 disconnects the auxiliary steel cable 330 from the guide rail 110 and connects to the mine car 400 when the mine car 400 rises to a preset position, and disconnects the auxiliary steel cable 330 from the mine car 400 and connects to the guide rail 110 when the mine car 400 descends to a preset position.

[0032] During operation, the first drum 210 rotates to reel in the main steel cable 230, driving the mine car 400 to move upward along the guide rail 110. Since the first drum 210 has a certain length in its axial direction, the main steel cable 230 will form an angle with the moving direction of the mine car 400 when moving back and forth under the guidance of the first cable assembly 220, thereby generating a component force on the mine car 400 in the horizontal direction perpendicular to the guide rail 110. As the mine car 400 rises higher, the angle between the main steel cable 230 and the moving direction of the mine car 400 increases, and the component force on the mine car 400 in the horizontal direction increases. Therefore, the preset position can be determined according to the actual length and height of the guide rail 110. When the mine car 400 is raised to the preset position, the auxiliary steel cable 330 is connected to the mine car 400, and the auxiliary steel cable 330 moves in opposite directions to the main steel cable 230. The auxiliary steel cable 330 exerts a force component on the mine car 400 in the horizontal direction in the opposite direction to the force component of the main steel cable 230 in the horizontal direction, and pulls the mine car 400 in the reverse direction, thereby reducing the risk of the mine car 400 tilting to the side of the guide rail 110. When the mine car 400 is raised to the preset position, the auxiliary steel cable 330 is connected to the mine car 400, which can save the use of the auxiliary steel cable 330, and can reduce the use cost of the steel cable in some occasions where the guide rail 110 is long and the transportation path of the mine car 400 is long.

[0033] In this embodiment, an elastic member (not shown in the figure) is arranged between the second drum 310 and the base 100, wherein the elastic member is a coil spring. When the mine car 400 moves downward, the secondary steel cable 330 drives the second drum 310 to rotate so that the elastic member accumulates force. When the mine car 400 rises to a preset position and is connected to the secondary steel cable 330, the elastic member causes the second drum 310 to rotate, and then the secondary steel cable 330 provides a pulling force to the mine car 400. The gravity of the mine car 400 itself is used to accumulate force on the second drum 310, and then after the mine car 400 rises above the preset position, the secondary steel cable 330 provides a pulling force to the mine car 400, without the need for an external drive, and no matter how fast the first drum 210 reels the main steel cable 230 to drive the mine car 400 to move upward, the secondary steel cable 330 can remain tensioned under the action of the elastic member to provide a pulling force to the mine car 400. When the second drum 310 is rotated by an external drive, if the second drum 310 is not reeled synchronously with the first drum 210, the main steel cable 230 or the auxiliary steel cable 330 may become loose, affecting the reeling of the main steel cable 230 or the auxiliary steel cable 330, which wastes cost and energy and has a poor use effect.

[0034] In this embodiment, a first magnetic block 410 is provided at the lower side of the mine car 400; the switching assembly 500 includes a second magnetic block 520, a first electromagnetic block 530, and a second electromagnetic block 540, and the second magnetic block 520 is provided at a preset position of the guide rail 110. The first electromagnetic block 530 and the second electromagnetic block 540 are fixedly connected and connected to the auxiliary steel cable 330. The first electromagnetic block 530 is adsorbed with the first magnetic block 410 in the power-on state and is separated from the first magnetic block 410 in the power-off state; the second electromagnetic block 540 is adsorbed with the second magnetic block 520 in the power-on state and is separated from the second magnetic block 520 in the power-off state. When the mine car 400 rises to the preset position, the first electromagnetic block 530 is powered on and the second electromagnetic block 540 is powered off, thereby making the auxiliary steel cable 330 separate from the guide rail 110 and connected to the mine car 400. When the mining car 400 descends to a preset position, the first electromagnetic block 530 is powered off and the second electromagnetic block 540 is powered on, so that the auxiliary steel cable 330 is connected to the guide rail 110 and is separated from the mining car 400.

[0035] In this embodiment, the switching assembly 500 further includes a fixed block 510 and a buffer spring 550. The fixed block 510 is fixed to the guide rail 110. The second magnetic block 520 is slidably installed on the guide rail 110 along the tilting direction of the guide rail 110 and is connected to the fixed block 510 through the buffer spring 550. The second magnetic block 520 is in a preset position of the guide rail 110 under the action of the buffer spring 550. The first electromagnetic block 530 and the second electromagnetic block 540 are sequentially arranged in a direction perpendicular to the guide rail 110, and can be respectively attached to the first magnetic block 410 and the second magnetic block 520 at the same time; the first electromagnetic block 530 is powered off after the second electromagnetic block 540 is adsorbed to the second magnetic block 520, and the second electromagnetic block 540 is powered off after the first electromagnetic block 530 is adsorbed to the first magnetic block 410. By setting the buffer spring 550, the second electromagnetic block 540 is powered off after the first electromagnetic block 530 is powered on, or the first electromagnetic block 530 is powered off after the second electromagnetic block 540 is powered on, so as to ensure that the first electromagnetic block 530 and the first magnetic block 410, the second electromagnetic block 540 and the second magnetic block 520 are adsorbed respectively and then the first electromagnetic block 530 or the second electromagnetic block 540 is powered off, thereby ensuring that the auxiliary steel cable 330 is connected to the mining car 400 or the guide rail 110 in place.

[0036] In this embodiment, at least two tracks for guiding the movement of the mine cart 400 are arranged on the guide rail 110, and multiple rows of rollers are installed on the mine cart 400 to roll with the tracks. The first magnetic block 410 is arranged between two adjacent rows of rollers, and the fixed block 510 and the second magnetic block 520 are both located between two adjacent columns of tracks on the guide rail 110 to avoid affecting the passage of the mine cart 400.

[0037] In this embodiment, the base 100 is provided with a first support frame 120 and a second support frame 130; the first cable assembly 220 includes a first guide rod 221 and a first slider 222, the first guide rod 221 is parallel to the first reel 210 and is rotatably mounted on the first support frame 120, and the first guide rod 221 is higher than the first reel 210; the first slider 222 is axially slidably mounted on the first support frame 120 along the first guide rod 221 and is threadedly engaged with the first guide rod 221, and the main steel cable 230 moves under the drive of the first slider 222. The second cable assembly 320 includes a second guide rod and a second slider, the second guide rod is parallel to the second reel 310 and is rotatably mounted on the second support frame 130, and the second guide rod is higher than the second reel 310; the second slider is axially slidably mounted on the second support frame 130 along the second guide rod and is threadedly engaged with the second guide rod, and the auxiliary steel cable 330 moves under the drive of the second slider. Specifically, two spiral channels with opposite rotation directions are provided on the first guide rod 221, and the ends of the two spiral channels are connected. The midpoint of the spiral channel in the axial direction of the first guide rod 221 is in the same vertical plane as the guide rail 110; a rotating column 224 for cooperating with the spiral channel is rotatably installed on the first slider 222, and the first guide rod 221 rotates to drive the first slider 222 to reciprocate along the spiral channel; the second guide rod has the same structure as the first guide rod 221 and the same relative position to the guide rail 110, and the second slider has the same structure as the first slider 222. At least two guide rollers 223 are provided on the first slider 222 and the second slider, and the at least two guide rollers 223 are sequentially spaced along the axial direction of the first guide rod 221 or the second guide rod, and are rotatably installed on the first slider 222 or the second slider around the vertical axis; the main steel cable 230 or the auxiliary steel cable 330 passes between the two guide rollers 223.

[0038] In this embodiment, the first guide rod 221 and the first drum 210 are driven by a belt, the second guide rod and the second drum 310 are driven by a belt, and the length of the second guide rod is greater than the length of the first guide rod 221, and the moving speed of the second slider is greater than the speed of the first slider 222, so that the first slider 222 and the second slider can be simultaneously and respectively located at the two ends of the first guide rod 221 and the second guide rod when moving in opposite directions. Since the elastic member has a small stored force in the unloaded state of the mine car 400, the generated pulling force is small, and it is easy to fail to balance the horizontal pulling force of the main steel cable 230 on the mine car 400; by making the length of the second guide rod greater than the length of the first guide rod 221, the moving path of the auxiliary steel cable 330 in the axial direction of the first drum 210 is longer, and the horizontal component of the pulling force on the mine car 400 is greater, so as to make up for the difference in pulling force with the main steel cable 230 on the mine car 400, and further improve the stability of the mine car 400. The moving speed of the second slider is greater than that of the first slider 222, which can be configured by adjusting the helix angle of the spiral channel or the transmission ratio of the belt drive to ensure that the first slider 222 and the second slider can reach both ends of the first guide rod 221 and the second guide rod respectively at the same time.

[0039] In some other embodiments, two motors may be used to respectively drive the first guide rod 221 and the second guide rod to rotate, so as to control the reciprocating speed of the first slider 222 and the second slider.

[0040] In this embodiment, a motor 140 for driving the first reel 210 to rotate is disposed on the base 100 .

[0041] In some other embodiments, the effective length of the elastic member is adjustable, and the stiffness coefficient of the elastic member is changed by adjusting the length of the elastic member to adapt to mining carts 400 of different masses.

[0042] In some other embodiments, a brake device is provided on the base 100 for braking the first drum 210 and the second drum 310 to ensure that the first drum 210 and the second drum 310 do not idle when the mine car 400 is unloading, and emergency braking can be performed when an abnormality occurs to improve the safety factor. The brake device is a common structure in the prior art and will not be described in detail.

[0043] In the initial state of the energy-saving hoisting winch for coal mines of the present invention, the second electromagnetic block 540 is adsorbed with the second magnetic block 520, and the auxiliary steel cable 330 makes the elastic member between the second drum 310 and the base 100 in a power storage state. This state can be achieved in advance by stretching the auxiliary steel cable 330 by the hook, or by making the mine car 400 rise without load and adsorbed with the first electromagnetic block 530, and then bringing it to a preset position, and then adsorbing the second electromagnetic block 540 with the second magnetic block 520, so that the elastic member is power stored. When in use, the main steel cable 230 is connected to the mine car 400, and the first drum 210 rotates and rewinds the main steel cable 230 under the drive of the motor 140, so that the main steel cable 230 drives the mine car 400 to move upward along the guide rail 110, and at the same time, the first slider 222 reciprocates along the first guide rod 221, guiding the main steel cable 230 to reciprocate, so that the main steel cable 230 is evenly wound on the first drum 210. When the mine car 400 rises to the preset position, the first magnetic block 410 is attracted by the first electromagnetic block 530, and the first electromagnetic block 530 is energized at the same time, or the first electromagnetic block 530 is energized in advance. After the first magnetic block 410 is attracted by the first electromagnetic block 530, the second electromagnetic block 540 is de-energized again. Then, the elastic member causes the second drum 310 to rotate and reel in the auxiliary steel cable 330, thereby providing pulling force to the mine car 400. At the same time, the second slider reciprocates on the second guide rod to change the winding position of the auxiliary steel cable 330 on the second drum 310, while changing the angle between the guide rails 110 of the auxiliary steel cable 330 to balance the horizontal component of the pulling force of the main steel cable 230 on the mine car 400, thereby reducing the risk of the mine car 400 tipping over. After the mine car 400 rises to a position on the base 100 or above the preset position of the guide rail 110 to complete unloading, the mine car 400 moves downward along the guide rail 110 under the action of gravity, and the motor 140 controls the first drum 210 to reverse, releases the main steel cable 230, and while the mine car 400 moves downward, the auxiliary steel cable 330 drives the second drum 310 to rotate so that the elastic member accumulates force, until the mine car 400 moves downward to the preset position, the second magnetic block 520 and the second electromagnetic block 540 are adsorbed, and the second electromagnetic block 540 is energized at the same time, or the second electromagnetic block 540 is energized in advance, and after the second magnetic block 520 and the second electromagnetic block 540 are adsorbed, the first electromagnetic block 530 is de-energized again, and the mine car 400 is separated from the auxiliary steel cable 330 and can continue to move downward along the guide rail 110. The second magnetic block 520 is kept at the preset position under the action of the buffer spring 550, and the auxiliary steel cable 330 is in a tensioned state through the adsorption action with the second electromagnetic block 540. Afterwards, the mine car 400 can rise fully loaded and repeat the above working process.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A coal mine energy-saving hoisting winch, characterized in that: It includes a base, a winding component, an auxiliary component and a switching component; the base is arranged above the ground, and a slanted guide rail is arranged on the side, and the upper end of the guide rail is connected with the base to guide the mine car to move upward; The winding assembly includes a first drum, a first cable assembly and a main steel cable. The first drum is rotatably mounted on the base and is perpendicular to the guide rail. The first cable assembly is arranged between the first drum and the guide rail. One end of the main steel cable is wound around the first drum and the other end is connected to the mine car. The first cable assembly guides the main steel cable to reciprocate along the axial direction of the first drum to change the main steel cable. A winding position on the first drum; The auxiliary component includes a second drum, a second cable assembly and a secondary steel cable. The second drum is rotatably mounted on the base, and the second drum is parallel to the first drum. The second cable assembly is arranged between the second drum and the guide rail. One end of the secondary steel cable is wound around the second drum, and the other end is selectively connected to the mine car and the guide rail. The second cable assembly guides the secondary steel cable to move back and forth along the axial direction of the second drum, changing the winding position of the secondary steel cable on the second drum, and the movement directions of the main steel cable and the secondary steel cable are opposite. The switching assembly disconnects the secondary steel cable from the guide rail and connects it to the mine car when the mine car rises to a preset position, and disconnects the secondary steel cable from the mine car and connects it to the guide rail when the mine car descends to a preset position. An elastic member is arranged between the second drum and the base. When the mine car moves downward, the second drum is driven to rotate by the auxiliary steel cable to store force on the elastic member. When the mine car rises to a preset position and is connected to the auxiliary steel cable, the elastic member causes the second drum to rotate, thereby providing pulling force to the mine car through the auxiliary steel cable. A first magnetic block is arranged at the lower side of the mining car; the switching assembly comprises a second magnetic block, a first electromagnetic block and a second electromagnetic block, and the second magnetic block is arranged at a preset position of the guide rail; the first electromagnetic block and the second electromagnetic block are fixedly connected and connected to the auxiliary steel cable; the first electromagnetic block is adsorbed with the first magnetic block in the power-on state and detached from the first magnetic block in the power-off state; the second electromagnetic block is adsorbed with the second magnetic block in the power-on state and detached from the second magnetic block in the power-off state; The switching assembly also includes a fixed block and a buffer spring, the fixed block is fixed to the guide rail, the second magnetic block is slidably installed on the guide rail along the inclination direction of the guide rail, and is connected to the fixed block through the buffer spring, and the second magnetic block is in a preset position of the guide rail under the action of the buffer spring; the first electromagnetic block and the second electromagnetic block are arranged in sequence in a direction perpendicular to the guide rail, and can be respectively attached to the first magnetic block and the second magnetic block at the same time; the first electromagnetic block is powered off after the second electromagnetic block is adsorbed with the second magnetic block, and the second electromagnetic block is powered off after the first electromagnetic block is adsorbed with the first magnetic block.

2. The energy-saving hoisting winch for coal mines according to claim 1, characterized in that: A first support frame and a second support frame are arranged on the base; the first cable arrangement assembly includes a first guide rod and a first slider, the first guide rod is parallel to the first drum and is rotatably installed on the first support frame, and the first guide rod is higher than the first drum; the first slider is axially slidably installed on the first support frame along the first guide rod and is threadedly matched with the first guide rod, and the main steel cable moves under the drive of the first slider; the second cable arrangement assembly includes a second guide rod and a second slider, the second guide rod is parallel to the second drum and is rotatably installed on the second support frame, and the second guide rod is higher than the second drum; the second slider is axially slidably installed on the second support frame along the second guide rod and is threadedly matched with the second guide rod, and the auxiliary steel cable moves under the drive of the second slider.

3. The energy-saving hoisting winch for coal mines according to claim 2 is characterized in that: The first guide rod is provided with two spiral channels with opposite rotation directions, and the ends of the two spiral channels are connected, and the midpoint of the spiral channel in the axial direction of the first guide rod is in the same vertical plane as the guide rail; a rotating column for cooperating with the spiral channel is rotatably installed on the first slider, and the rotation of the first guide rod drives the first slider to reciprocate along the spiral channel; the second guide rod has the same structure as the first guide rod and the relative position with the guide rail, and the second slider has the same structure as the first slider.

4. The energy-saving hoisting winch for coal mines according to claim 2, characterized in that: The first guide rod and the first reel are driven by a belt, the second guide rod and the second reel are driven by a belt, and the length of the second guide rod is greater than that of the first guide rod, and the moving speed of the second slider is greater than that of the first slider, so that the first slider and the second slider can be simultaneously and respectively located at both ends of the first guide rod and the second guide rod when moving in opposite directions.

5. The energy-saving hoisting winch for coal mines according to claim 2 is characterized in that: At least two guide rollers are arranged on the first slider and the second slider, and the at least two guide rollers are spaced apart in sequence along the axial direction of the first guide rod or the second guide rod, and are rotatably installed on the first slider or the second slider around a vertical axis; the main steel cable or the auxiliary steel cable passes between the two guide rollers.

6. The energy-saving hoisting winch for coal mines according to claim 1, characterized in that: A motor for driving the first reel to rotate is arranged on the base.

7. The energy-saving hoisting winch for coal mines according to claim 1, characterized in that: The elastic member is a coil spring.

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