Double-brake winch directly driven by power

Abstract

The utility model discloses a double brake winch directly driven by power, which comprises a winch rotating shaft, a driving system and a hydraulic brake system, the driving system is used for driving the winch rotating shaft to rotate forwards and backwards, and the hydraulic brake system is used for controlling braking and releasing of the winch rotating shaft and comprises a first brake, a second brake and a brake subsystem. The first brake and the second brake are both arranged on the peripheral side of the winch rotating shaft, and the braking subsystem drives the first brake and the second brake to act synchronously to brake or release the winch rotating shaft. The winch rotating shaft can be reliably driven to rotate through the arranged driving system, and therefore it is guaranteed that the winding drum on the winch rotating shaft rotates forwards and backwards to wind or release stranded wires. And the hydraulic braking system can reliably brake, stop, release and unlock the winch rotating shaft. A brake subsystem of the hydraulic brake system can drive a first brake and a second brake to act synchronously, so that the brake reliability of a winch rotating shaft is effectively improved, brake failure linearity caused by factors such as abrasion or long-term unrepair when only one brake is arranged is avoided, and the use safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of winches, in particular to a double-brake winch directly driven by power. Background Art

[0002] A winch is a lightweight lifting device that uses a drum-wound wire rope or chain to lift or pull loads. It can lift vertically or pull loads horizontally or at an angle. Winches come in two types: electric and hydraulic. They can be used independently or as components in machinery for lifting, road construction, and mine hoisting. They are widely used due to their ease of operation, large rope winding capacity, and easy relocation. They are primarily used for lifting and hauling materials in construction, water conservancy projects, forestry, mining, and docks.

[0003] Existing winches are prone to power outages or hydraulic failures during their design and use. In such situations, it is necessary to ensure the safety of the winch and avoid a sudden drop, which can easily lead to an accident. Existing winches mostly use a single-brake system. Once the brake fails, the winch's safety cannot be guaranteed. Therefore, this utility model proposes a double-brake winch directly driven by power. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a double-brake winch which is simple in structure, convenient in use and reliable and is directly driven by power.

[0005] In order to solve the above technical problems, the present invention solves the problem through the following technical solutions: a double-brake winch directly driven by power, comprising: a winch shaft, a drive system and a hydraulic braking system, the drive system is used to drive the winch shaft to rotate forward and reverse, the hydraulic braking system is used to control the braking and release of the winch shaft, the hydraulic braking system includes a first brake, a second brake and a braking subsystem, the first brake and the second brake are both arranged on the circumferential side of the winch shaft, and the braking subsystem drives the first brake and the second brake to act synchronously to brake or release the winch shaft.

[0006] Preferably, the power source of the drive system is motor-driven or hydraulic-driven; the advantage is that a variety of power sources can be flexibly set by the user to drive the winch shaft to rotate.

[0007] Furthermore, when the power source of the drive system is hydraulically driven, the drive system includes an oil tank and a hydraulic pump system, and the winch shaft is connected to a first hydraulic pipeline and a second hydraulic pipeline; the hydraulic pump system is used to drive the hydraulic oil in the oil tank to enter through the first hydraulic pipeline and return to the oil tank from the second hydraulic pipeline; or the hydraulic pump system drives the hydraulic oil in the oil tank to enter through the second hydraulic pipeline and return to the oil tank from the first hydraulic pipeline; the advantage is that the first hydraulic pipeline and the second hydraulic pipeline are set to facilitate driving the winch shaft to rotate forward and reverse, thereby realizing control of the winch.

[0008] Furthermore, the braking subsystem includes a first reversing valve, a second reversing valve, a first shuttle valve and a second shuttle valve. The first brake is connected to the first reversing valve, the first reversing valve is connected to the first shuttle valve, the second brake is connected to the second reversing valve, the second reversing valve is connected to the second shuttle valve, a third shuttle valve is arranged between the first hydraulic pipeline and the second hydraulic pipeline, the third shuttle valve is connected to both the first shuttle valve and the second shuttle valve, and the first reversing valve and the second reversing valve are also connected to the hydraulic oil tank.

[0009] Furthermore, the drive system also includes a manual unlocking system, which includes a manual hydraulic pump, the manual hydraulic connection is a manual hydraulic pipeline and an oil inlet pipeline extending into the oil tank, the manual hydraulic pipeline is connected to a first one-way valve, the first one-way valve is connected to the first hydraulic pipeline, the manual hydraulic pipeline is connected to a second one-way valve, the second one-way valve is connected to the second hydraulic pipeline, the manual hydraulic pipeline is also connected to a third reversing valve, the second hydraulic pipeline is connected to a speed regulating valve, the third reversing valve is bridged between the first hydraulic pipeline and the speed regulating valve, and the manual hydraulic pipeline is also connected to the first shuttle valve and the second shuttle valve; the advantage is that the manual unlocking system can be set up to unlock when the drive system fails and stops, thereby facilitating manual control of the winch and ensuring the reliability of the winch.

[0010] Furthermore, a two-way balancing hydraulic valve is connected between the first hydraulic pipeline and the second hydraulic pipeline, and an overflow valve is also provided between the first hydraulic pipeline and the second hydraulic pipeline; the advantage is that the two-way balancing valve can ensure the reliability of the sequential conduction of the first hydraulic pipeline and the second hydraulic pipeline, and the overflow valve can ensure the stability during manual control.

[0011] Preferably, two winch shafts are symmetrically arranged on both sides of the winch, and both winch shafts are provided with a first brake and a second brake; the advantage is that the two winch shafts can realize separate control of the two strands of wire, thereby achieving balanced lifting of the sling.

[0012] Furthermore, the two winch shafts rotate in opposite directions but at the same speed; the advantage is that the two winch shafts rotate at the same speed and in opposite directions, and the strands can be set on the outside, which improves stability while reducing space occupancy, and the drums on the two winch shafts can be set close to each other.

[0013] Compared with the prior art, the present invention has the following advantages: the drive system can reliably drive the winch shaft to rotate, thereby ensuring the forward and reverse rotation of the drum on the winch shaft to reel in or release the stranded wire. The hydraulic brake system can reliably stop the winch shaft and release and unlock it. The brake subsystem of the hydraulic brake system can drive the first and second brakes to operate synchronously, effectively improving the reliability of the winch shaft braking and avoiding the linear brake failure caused by wear and disrepair when only one brake is provided, thereby ensuring safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. 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 any creative work.

[0015] Figure 1 This is a schematic diagram of the hydraulic system of the present utility model;

[0016] Figure 2 This is a simplified schematic diagram of the hydraulic brake system of the utility model;

[0017] Figure 3 This is a schematic diagram of the winch structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the wire outlet direction of the twisted wire of the utility model. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-4 The present invention is further described in detail.

[0020] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0021] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate directions or positions are based on the directions or positional relationships shown in the accompanying drawings, which are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0022] As shown in the accompanying drawings, a double-brake winch directly driven by power includes: a winch shaft 1.1, a drive system and a hydraulic braking system. The drive system is used to drive the winch shaft 1.1 to rotate forward and reverse. The hydraulic braking system is used to control the braking and release of the winch shaft 1.1. The hydraulic braking system includes a first brake 2, a second brake 3 and a braking subsystem. The first brake 2 and the second brake 3 are both arranged on the circumferential side of the winch shaft 1.1. The braking subsystem drives the first brake 2 and the second brake 3 to operate synchronously to brake or release the winch shaft 1.1.

[0023] The power source of the driving system of the present invention can be motor driven or hydraulic driven. Multiple power sources can be flexibly set by the user to drive the winch shaft 1.1 to rotate.

[0024] On the basis of the above, when the power source of the drive system is hydraulic drive, the drive system includes an oil tank 4 and a hydraulic pump system, and the winch shaft 1.1 is connected to a first hydraulic pipeline 5 and a second hydraulic pipeline 6; the hydraulic pump system is used to drive the hydraulic oil in the oil tank 4 to enter through the first hydraulic pipeline 5 and return to the oil tank 4 from the second hydraulic pipeline 6; or the hydraulic pump system drives the hydraulic oil in the oil tank 4 to enter through the second hydraulic pipeline 6 and return to the oil tank 4 from the first hydraulic pipeline 5.

[0025] Specifically, the braking subsystem includes a first reversing valve 7, a second reversing valve 8, a first shuttle valve 9 and a second shuttle valve 10. The first brake 2 is connected to the first reversing valve 7, the first reversing valve 7 is connected to the first shuttle valve 9, the second brake 3 is connected to the second reversing valve 8, the second reversing valve 8 is connected to the second shuttle valve 10, a third shuttle valve 11 is arranged between the first hydraulic pipeline 5 and the second hydraulic pipeline 6, the third shuttle valve 11 is connected to the first shuttle valve 9 and the second shuttle valve 10, and the first reversing valve 7 and the second reversing valve 8 are also connected to the hydraulic oil tank 4. The drive system also includes a manual unlocking system, which includes a manual hydraulic pump 12. The manual hydraulic system is connected to a manual hydraulic line 13 and an oil inlet line extending into the oil tank 4. The manual hydraulic line 13 is connected to a first one-way valve 14, which is connected to the first hydraulic line 5. The manual hydraulic line 13 is connected to a second one-way valve 15, which is connected to the second hydraulic line 6. The manual hydraulic line 13 is also connected to a third reversing valve 16, which is connected to a speed regulating valve. The third reversing valve 16 is connected between the first hydraulic line 5 and the speed regulating valve. The manual hydraulic line 13 is also connected to the first shuttle valve 9 and the second shuttle valve 10. A two-way balancing hydraulic valve is connected between the first hydraulic line 5 and the second hydraulic line 6, and an overflow valve 22 is also provided between the first hydraulic line 5 and the second hydraulic line 6.

[0026] The specific working process of the present invention is described by taking the winch with two winch shafts 1.1 as an example: Figure 1As shown, both winch shafts 1.1 are equipped with a first brake 2 and a second brake 3. A motor drives a hydraulic pump 20, which serves as the power source for the winch 1. Hydraulic oil passes through a high-pressure filter 23 and is delivered to a manual on / off control valve. This hydraulic oil is then connected to the first and second hydraulic lines 5 and 6, allowing for manual control of the winch's forward and reverse rotation. Forward rotation is defined as flow in the first hydraulic line and out the second hydraulic line; reverse rotation is defined as flow in the second hydraulic line. When hydraulic oil enters the first hydraulic line, it activates the third shuttle valve 11, connecting it to the first and second shuttle valves 9 and 10. This hydraulic oil enters the corresponding first and second reversing valves 8, which in turn activate the first and second reversing valves 8 and the corresponding first and second brakes 2 and 3, unlocking them and driving the winch shaft 1.1 in forward rotation. A two-way balancing valve 18 ensures the order and stability of the flow between the first and second hydraulic lines 5 and 6, ensuring smooth flow. Of course, a one-way balancing valve 19 can also be provided in the second hydraulic pipeline 6, and the control end of the one-way balancing valve 19 is connected to the first hydraulic pipeline 5, thereby further ensuring the stability of the pipeline conduction. When the winch needs to be stopped, the manual switch valve 21 is controlled to be in the off state. At this time, the first hydraulic pipeline 5 and the second hydraulic pipeline 6 are blocked and cut off, and the control pressure of the first reversing valve and the second reversing valve 8 is reduced. Under the action of the spring, the hydraulic oil in the first brake 2 and the second brake 3 flows through the corresponding first reversing valve and the second reversing valve 8, and then returns to the oil tank 4 through the pipeline on the winch. The first brake 2 and the second brake 3 are reset under the action of the spring, braking the winch, thereby ensuring the braking reliability of the winch shaft 1.1.

[0027] When the winch needs to be reversed, hydraulic oil enters the second hydraulic pipeline 6, making the one-way balance valve 19 conductive, and driving the third shuttle valve 11 to be connected with the second shuttle valve 10 and the first shuttle valve 9, driving the first control and the second controller to be connected with the corresponding first brake 2 and the second brake 3. After the hydraulic oil enters the first brake 2 and the second brake 3, it drives the brake spring to be compressed, thereby achieving unlocking. Finally, the hydraulic oil flows back through the first hydraulic pipeline 5 to achieve reversal.

[0028] When a fault in the hydraulic drive system causes the manual on / off valve 21 to be shut off, and slow rotation of the winch shaft 1.1 is required, the manual hydraulic pump 12 forces hydraulic oil through the first check valve 14 into the first hydraulic line 5 and then through the second check valve 15 into the second hydraulic line 6. This ensures pressure balance on both sides of the winch shaft 1.1 and prevents stalling. During this process, the manual hydraulic line 13 communicates with the first and second shuttle valves 9 and 10, driving the first and second reversing valves 8 to engage, thereby unlocking the first and second brakes 2 and 3. The balanced pressure difference between the first and second hydraulic lines 5 and 6 ensures a stable and stationary winch shaft 1.1. Simultaneously, the manual hydraulic line 13 activates the third control valve and, under the control of the pressure regulating valve 17, regulates the pressure to maintain a constant pressure difference between the first and second hydraulic lines 5 and 6, thereby ensuring slow rotation of the winch shaft 1.1.

[0029] It is worth noting that the winch can be symmetrically provided with winch shafts 1.1 on both sides, each equipped with a first brake 2 and a second brake 3. The two winch shafts 1.1 rotate in opposite directions and at the same speed. Since the two winch shafts 1.1 rotate at the same speed but in opposite directions, the strands 1.3 can be positioned on the outside, improving stability while reducing space usage. This allows the drums 1.2 on the two winch shafts 1.1 to be positioned close together.

[0030] In order to ensure the reliability of the return hydraulic oil, an oil return filter 24 and an air-cooled cooler 25 are provided on the oil return line of the oil tank 4 .

[0031] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are provided for illustrative purposes only and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A double-brake winch directly driven by power, comprising: A winch shaft, a drive system and a hydraulic braking system, wherein the drive system is used to drive the winch shaft to rotate forward and reverse, and the hydraulic braking system is used to control the braking and release of the winch shaft. It is characterized in that the hydraulic braking system includes a first brake, a second brake and a braking subsystem, and the first brake and the second brake are both arranged on the circumferential side of the winch shaft. The braking subsystem drives the first brake and the second brake to act synchronously to brake or release the winch shaft.

2. A double-brake winch directly driven by power according to claim 1, characterized in that: The power source of the driving system is motor drive or hydraulic drive.

3. A double-brake winch directly driven by power according to claim 2, characterized in that: When the power source of the drive system is hydraulic drive, the drive system includes an oil tank and a hydraulic pump system, and the winch shaft is connected to a first hydraulic pipeline and a second hydraulic pipeline; the hydraulic pump system is used to drive the hydraulic oil in the oil tank to enter through the first hydraulic pipeline and return to the oil tank from the second hydraulic pipeline; or the hydraulic pump system drives the hydraulic oil in the oil tank to enter through the second hydraulic pipeline and return to the oil tank from the first hydraulic pipeline.

4. A double-brake winch directly driven by power according to claim 3, characterized in that: The braking subsystem includes a first reversing valve, a second reversing valve, a first shuttle valve and a second shuttle valve. The first brake is connected to the first reversing valve, the first reversing valve is connected to the first shuttle valve, the second brake is connected to the second reversing valve, and the second reversing valve is connected to the second shuttle valve. A third shuttle valve is arranged between the first hydraulic pipeline and the second hydraulic pipeline. The third shuttle valve is connected to both the first shuttle valve and the second shuttle valve. The first reversing valve and the second reversing valve are also connected to the hydraulic oil tank.

5. A double-brake winch directly driven by power according to claim 4, characterized in that: The drive system also includes a manual unlocking system, which includes a manual hydraulic pump. The manual hydraulic system is connected to a manual hydraulic pipeline and an oil inlet pipeline extending into the oil tank. The manual hydraulic pipeline is connected to a first one-way valve, which is connected to the first hydraulic pipeline. The manual hydraulic pipeline is connected to a second one-way valve, which is connected to the second hydraulic pipeline. The manual hydraulic pipeline is also connected to a third reversing valve, and the second hydraulic pipeline is connected to a speed regulating valve. The third reversing valve is connected between the first hydraulic pipeline and the speed regulating valve. The manual hydraulic pipeline is also connected to the first shuttle valve and the second shuttle valve.

6. A double-brake winch directly driven by power according to claim 5, characterized in that: A two-way balanced hydraulic valve is connected between the first hydraulic pipeline and the second hydraulic pipeline, and an overflow valve is also provided between the first hydraulic pipeline and the second hydraulic pipeline.

7. The double-brake winch directly driven by power according to claim 1, characterized in that: Two winch rotating shafts are symmetrically arranged on both sides of the winch, and both winch rotating shafts are provided with a first brake and a second brake.

8. A double-brake winch directly driven by power according to claim 7, characterized in that: The two winch shafts rotate in opposite directions but at the same speed.

Images