Hydraulic winch applied to coal mine

Abstract

A hydraulic winch applied to a coal mine comprises a winch support, a hydraulic brake and a hydraulic brake controller, a pair of first supporting seats is arranged on the winch support, a reel is rotatably arranged between the first supporting seats and connected with a transmission shaft, a transmission is arranged on the transmission shaft, and the transmission is connected with the hydraulic brake controller. A hydraulic brake is arranged at the end, away from the reel, of the transmission shaft and connected with the winch support through a second supporting base, the hydraulic brake is connected with a hydraulic brake controller, and the hydraulic brake controller is installed on the winch support. The hydraulic brake comprises a brake shell, a brake oil inlet pipe is arranged on one side of the brake shell, a brake oil outlet pipe is arranged on the other side of the brake shell, a brake block fixing ring is arranged in the brake shell, and one end of a transmission shaft is sleeved with the brake block fixing ring. The device can reduce the pulley phenomenon when the winch is used, is safer, prolongs the service life, and improves the production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of winches, in particular to a hydraulic winch applied to coal mines. Background Art

[0002] A winch is a light and small lifting device that winds a steel wire rope or a chain around a drum to lift or tow heavy objects, also known as a hoist. A winch can be used alone or as a component in machinery such as lifting, road construction, and mine hoisting, and is widely used because of its simple operation, large rope winding capacity, and convenient relocation.

[0003] Currently, the winches used in production are usually mechanical winches. The braking of a mechanical winch is achieved by pressing the brake pads against the driving wheel, and the operator manually increases the friction between the brake pads and the driving wheel through a handle for braking. Due to the dust generated by coal ash underground, it enters between the brake pads and the driving wheel of the winch, reducing the friction between them, affecting the braking of the winch, resulting in a slipping phenomenon, and there is a safety risk. The brake pads are consumable parts, and they need to be replaced frequently during long-term operation, which is uneconomical.

[0004] Therefore, there is an urgent need for a hydraulic winch applied to coal mines that can reduce the slipping phenomenon of the winch during use, be safer, increase the service life, and improve production efficiency. Summary of the Invention

[0005] A hydraulic winch applied to coal mines can reduce the slipping phenomenon of the winch during use, be safer, increase the service life, and improve production efficiency.

[0006] A hydraulic winch applied to coal mines includes a winch support, a hydraulic brake, and a hydraulic brake controller, where:

[0007] A pair of first support seats are arranged on the winch support. A winch drum is rotatably arranged between the pair of first support seats. The winch drum is connected to a transmission shaft. A transmission is arranged on the transmission shaft. A hydraulic brake is arranged at one end of the transmission shaft away from the winch drum. The hydraulic brake is connected to the winch support through a second support seat. The hydraulic brake is connected to the hydraulic brake controller, and the hydraulic brake controller is installed on the winch support.

[0008] Preferably, the hydraulic brake includes a brake housing. One side of the brake housing is provided with a brake oil inlet pipe, and the other side is provided with a brake oil outlet pipe. A brake block fixing ring is arranged inside the brake housing. One end of the transmission shaft is sleeved inside the brake block fixing ring. A plurality of openings are arranged on the brake block fixing ring. Brake blocks are sleeved inside the openings. Springs are sleeved on the brake blocks on the outer side of the brake block fixing ring. The brake blocks are in contact connection with the transmission shaft on the inner side of the brake block fixing ring. A chute is arranged inside the brake housing. An oil chamber is formed between the chute and the brake block fixing ring.

[0009] Preferably, the hydraulic brake controller includes a hydraulic tank. The hydraulic outlet pipe on the hydraulic tank is connected to a hydraulic pump. The connecting pipe on the hydraulic pump is connected to a hydraulic three-way valve. One connecting pipe interface of the hydraulic three-way valve is connected to the brake outlet pipe, and the other connecting pipe of the hydraulic three-way valve is connected to the brake inlet pipe. One part of the connecting pipe on the hydraulic pump is connected to a return pipe, and the return pipe is connected to the hydraulic tank.

[0010] Preferably, the hydraulic three-way valve is an electro-hydraulic three-way valve.

[0011] Preferably, fixed rubber pads are provided at the bottom feet of the winch support.

[0012] Preferably, a brake protection shell is sleeved outside the hydraulic brake controller.

[0013] Preferably, a towing cable is provided on the winch drum.

[0014] Preferably, a control valve is provided on the return pipe, and a power pump is also provided on the return pipe.

[0015] The beneficial effects of the present utility model: The present utility model relates to a hydraulic winch applied to coal mines. The device has a compact structure, reliable braking performance, and simple operation, and is suitable for use in harsh environments such as coal mines. Compared with traditional hydraulic winches, the device has been optimized in structure, reducing the occupied space. At the same time, the braking performance is more reliable and the operation is simpler, enabling it to better meet the usage requirements in harsh environments such as coal mines. The hydraulic brake and the hydraulic brake controller are used in combination to achieve precise braking control and improve the stability of the braking performance. The device uses the combination of a hydraulic brake and a hydraulic brake controller to achieve precise braking control, avoiding the problem of unstable braking of traditional hydraulic winches and improving the stability of the braking performance. The electro-hydraulic three-way valve is used for the hydraulic three-way valve, making the operation simpler and more convenient. The device uses an electro-hydraulic three-way valve, which is simpler and more convenient to operate compared with traditional manual three-way valves, improving the usage efficiency. Fixed rubber pads are provided at the bottom of the winch support, which can effectively reduce vibration and improve the stability of the equipment. The device is provided with fixed rubber pads at the bottom of the winch support, which can effectively reduce vibration, improve the stability of the equipment, and reduce the risk of equipment failure. A protection shell is sleeved outside the hydraulic brake controller, which can effectively protect the hydraulic brake, improve the service life of the equipment, reduce the cost of equipment maintenance and replacement, and greatly enhance its practical value. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of a hydraulic winch applied to coal mines of the present utility model;

[0017] Figure 2 It is a sectional view of the hydraulic brake of a hydraulic winch applied to coal mines of the present utility model;

[0018] Figure 3 This is a schematic flow diagram of a hydraulic brake controller for a hydraulic winch applied to coal mines in the present utility model.

[0019] In the figure: winch support 1, first support seat 2, winch wheel 3, transmission shaft 4, transmission 5, second support seat 6, hydraulic brake 7, brake housing 71, brake inlet pipe 72, brake outlet pipe 73, brake block fixing ring 74, brake block 75, spring 76, chute 77, oil chamber 78, hydraulic brake controller 8, hydraulic tank 81, hydraulic tank outlet pipe 82, hydraulic pump 83, hydraulic three-way valve 84, return pipeline 85, fixed rubber pad 9. Specific embodiments

[0020] In order to make the technical solution of the present utility model easier to understand, the technical solution of the present utility model will be clearly and completely described by way of specific embodiments in conjunction with the accompanying drawings.

[0021] Embodiment 1:

[0022] As Figures 1 - 3 shown, the Figure 1 of this embodiment is a hydraulic winch applied to coal mines in the present utility model, including a winch support 1, a hydraulic brake 7 and a hydraulic brake controller 8, wherein:

[0023] A pair of first support seats 2 are arranged on the winch support 1, a winch wheel 3 is rotatably arranged between the pair of first support seats 2, the winch wheel 3 is connected to the transmission shaft 4, a transmission 5 is arranged on the transmission shaft 4, a hydraulic brake 7 is arranged at one end of the transmission shaft 4 away from the winch wheel 3, the hydraulic brake 7 is connected to the winch support 1 through the second support seat 6, the hydraulic brake 7 is connected to the hydraulic brake controller 8, and the hydraulic brake controller 8 is installed on the winch support 1.

[0024] The hydraulic brake 7 includes a brake housing 71, a brake inlet pipe 72 is arranged on one side of the brake housing 71, a brake outlet pipe 73 is arranged on the other side thereof, a brake block fixing ring 74 is arranged inside the brake housing 71, one end of the transmission shaft 4 is sleeved inside the brake block fixing ring 74, a plurality of openings are arranged on the brake block fixing ring 74, brake blocks 75 are sleeved inside the openings, a spring 76 is sleeved on the brake block 75 on the outer side of the brake block fixing ring 74, the brake block 75 is in contact connection with the transmission shaft 4 on the inner side of the brake block fixing ring 74, a chute 77 is arranged inside the brake housing 71, and an oil chamber 78 is formed between the chute 77 and the brake block fixing ring 74.

[0025] The hydraulic brake controller 8 includes a hydraulic tank 81. The hydraulic oil outlet pipe 82 on the hydraulic tank 81 is connected to a hydraulic pump 83. The connecting pipe on the hydraulic pump 83 is connected to a hydraulic three-way valve 84. One connecting pipe interface at one end of the hydraulic three-way valve 84 is connected to the brake oil outlet pipe 73, and the other connecting pipe at the other end of the hydraulic three-way valve 84 is connected to the brake oil inlet pipe 72. One place on the connecting pipe of the hydraulic pump 83 is connected to a return pipe 85, and the return pipe 85 is connected to the hydraulic tank 81.

[0026] The hydraulic three-way valve 84 is an electro-hydraulic three-way valve.

[0027] Fixed rubber pads 9 are provided at the bottom feet of the winch bracket 1.

[0028] The hydraulic brake controller 8 is externally sleeved with a brake protection shell.

[0029] A towing cable is provided on the winch wheel 3.

[0030] A control valve is provided on the return pipe 85, and a power pump is also provided on the return pipe 85.

[0031] During the use of the device, the pipe of the hydraulic tank 81 is connected to the hydraulic pump 83. Through the action of the hydraulic pump 83, the hydraulic oil in the hydraulic tank 81 is transported to the hydraulic three-way valve 84.

[0032] When the winch needs to be braked, under the control of the hydraulic three-way valve 84, the hydraulic oil flows into the brake oil inlet pipe 72 through the hydraulic tank oil outlet pipe 82. The hydraulic oil enters the oil cavity 78 through the brake oil inlet pipe 72, applies a pressure to the brake block 75, so that the brake block 75 slides out in the chute 77, and makes the brake block 75 contact the transmission shaft to achieve the braking effect.

[0033] When the winch does not need to be braked, control the hydraulic three-way valve 84 to release the pressure of the hydraulic oil. The hydraulic three-way valve 84 will return the hydraulic oil through the brake oil outlet pipe 73. The hydraulic oil flows into the hydraulic tank 81 through the return pipe 85, extracts the hydraulic oil in the oil cavity 78 of the hydraulic brake 7. Under the rebound action of the spring, the brake block 75 retracts into the oil cavity 78, and at the same time makes the brake block 75 disengage from the transmission shaft to achieve the effect of unlocking the brake.

[0034] The selected hydraulic three-way valve 84 is an electro-hydraulic three-way valve to control the amount of braking force output by the hydraulic brake 7. When the hydraulic three-way valve 84 adjusts the hydraulic oil output to the maximum, the hydraulic brake 7 can be braked instantly. When the hydraulic three-way valve 84 gradually increases the output of the hydraulic oil, the hydraulic brake 7 can be braked slowly. The specific braking method can control the hydraulic three-way valve 84 according to the actual situation during use.

[0035] Since the hydraulic brake 7 is connected to the transmission shaft in a sleeved manner, it is very fast to replace the hydraulic brake 7, reducing the maintenance time of the hydraulic brake 7 and improving the use efficiency of the winch.

[0036] It should be noted that the embodiments described herein are only partial embodiments of the present invention, rather than all implementation manners of the present invention. The embodiments are only exemplary, and their functions are only to provide a more intuitive and clear way to understand the content of the present invention, rather than a limitation on the technical solutions of the present invention. Without departing from the concept of the present invention, all other implementation manners that can be thought of by all ordinary technical personnel in the art without creative labor, as well as other simple replacements and various changes to the technical solutions of the present invention, all belong to the protection scope of the present invention.

Claims

1. A hydraulic winch applied to coal mines, characterized in that, Comprising a winch support (1), a hydraulic brake (7) and a hydraulic brake controller (8), wherein: A pair of first support seats (2) are provided on the winch support (1). A winch drum (3) is rotatably provided between the pair of first support seats (2). The winch drum (3) is connected to a transmission shaft (4). A transmission (5) is provided on the transmission shaft (4). A hydraulic brake (7) is provided at one end of the transmission shaft (4) away from the winch drum (3). The hydraulic brake (7) is connected to the winch support (1) through a second support seat (6). The hydraulic brake (7) is connected to the hydraulic brake controller (8), and the hydraulic brake controller (8) is installed on the winch support (1).

2. The hydraulic winch applied to coal mines according to claim 1, characterized in that The hydraulic brake (7) includes a brake housing (71). A brake inlet oil pipe (72) is provided on one side of the brake housing (71), and a brake outlet oil pipe (73) is provided on the other side. A brake block fixing ring (74) is provided inside the brake housing (71). One end of the transmission shaft (4) is sleeved inside the brake block fixing ring (74). A plurality of openings are provided on the brake block fixing ring (74), and brake blocks (75) are sleeved inside the openings. Springs (76) are sleeved on the brake blocks (75) on the outer side of the brake block fixing ring (74). The brake blocks (75) are in contact connection with the transmission shaft (4) on the inner side of the brake block fixing ring (74). A chute (77) is provided inside the brake housing (71), and an oil chamber (78) is formed between the chute (77) and the brake block fixing ring (74).

3. A hydraulic winch applied to coal mines according to claim 1 or 2, characterized in that, The hydraulic brake controller (8) includes a hydraulic tank (81). A hydraulic tank outlet oil pipe (82) on the hydraulic tank (81) is connected to a hydraulic pump (83). A connecting pipe on the hydraulic pump (83) is connected to a hydraulic three-way valve (84). A connecting pipe interface at one end of the hydraulic three-way valve (84) is connected to the brake outlet oil pipe (73). The connecting pipe at the other end of the hydraulic three-way valve (84) is connected to the brake inlet oil pipe (72). A connecting pipe on the hydraulic pump (83) is connected to a return pipe (85) at one place, and the return pipe (85) is connected to the hydraulic tank (81).

4. The hydraulic winch applied to coal mines according to claim 3, wherein The hydraulic three-way valve (84) is an electro-hydraulic three-way valve.

5. A hydraulic winch applied to a coal mine according to claim 1, characterized in that, Fixed rubber pads (9) are provided at the bottom feet of the winch support (1).

6. The hydraulic winch applied to coal mines according to claim 1, wherein A brake protection shell is sleeved outside the hydraulic brake controller (8).

7. The hydraulic winch applied to coal mines as described in claim 1, characterized in that, A towing cable is provided on the winch drum (3).

8. The hydraulic winch applied to coal mines according to claim 3, characterized in that, A control valve is provided on the return pipe (85), and a power pump is also provided on the return pipe (85).

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