Tensioning control system, coiling assembly and roadway vehicle

Abstract

The utility model relates to the technical field of coiling tensioning control and roadway cars, and provides a tensioning control system, a coiling assembly and a roadway car, which comprise a motor, a first one-way valve, a second one-way valve, a second one-way valve, a control valve, a second one-way valve, a third one-way valve, a fourth one-way valve, a fourth one-way valve and a fourth one-way valve, the first one-way valve is provided with a first inlet and a first outlet, the second inlet and outlet is communicated with the first outlet, the first inlet is communicated with the second control port, the second one-way valve is provided with a second inlet and a second outlet, the second inlet is communicated with the first outlet, and the second outlet is communicated with the second control port. The second control port is communicated with the second one-way valve and used for controlling the second one-way valve to be closed, and the overflow valve is communicated with the second outlet. By means of the technical scheme, the problems that in the related technology, cable winding and unwinding of electric equipment on a roadway vehicle are too loose, so that the cable mops the ground, and cable winding is not stable are solved.

Description

Technical Field

[0001] The utility model relates to the technical fields of wire winding tension control and roadway vehicles, and specifically, to a tension control system, a wire winding assembly and a roadway vehicle. Background Art

[0002] A roadway vehicle generally refers to a special transportation vehicle used in mines, tunnels, warehouses or other narrow roadways. According to different application fields and functions, roadway vehicles can be divided into various types: 1. Mine roadway vehicle: This type of vehicle is designed specifically for mine operations and is used to transport ores, muck or materials. They usually have a sturdy structure and strong traction force, and can adapt to harsh underground environments. 2. Hydraulic dump roadway transport vehicle: Based on the mine roadway transport vehicle, it has an additional dump function and can automatically dump the cargo, improving work efficiency. 3. Stereoscopic warehouse roadway vehicle: Used in automated stereoscopic warehouses, also known as automated storage and retrieval systems, this type of vehicle can automatically store and retrieve goods, enhancing the storage density and logistics efficiency of the warehouse. 4. Firefighting roadway vehicle: Specifically designed for fire rescue in narrow streets or roadways, it is small in size, highly maneuverable, and equipped with a fire pump and water tank. 5. Underground refueling vehicle: Used to provide fuel supply for equipment operating underground, usually equipped with a fuel dispenser and an oil tank. 6. Four-wheel drive roadway engineering vehicle: With four-wheel drive ability, it is suitable for construction and transportation tasks in complex terrains and harsh environments.

[0003] The design of a roadway vehicle usually needs to consider the vehicle's size, load capacity, power system, operation convenience and safety performance to ensure efficient and safe transportation tasks in a specific environment. Among them, mine roadway vehicles involve electrical devices that need to be connected to a power source. After being connected to the power source, they need to move forward to perform work, so the storage of cables is involved. Usually, the cables are wound around a drum for cable pay-out and reeling. In the prior art, when a mine roadway vehicle is moving forward, there will be a situation where the cable on the drum is too loose during pay-out and reeling, resulting in the cable dragging on the ground. At the same time, there will also be a problem of unstable cable reeling. Summary of the Utility Model

[0004] The utility model provides a tension control system, a wire winding assembly and a roadway vehicle, which solve the problems in the related art that the cable on the electrical equipment of the roadway vehicle is too loose during pay-out and reeling, resulting in the cable dragging on the ground, and the problem of unstable cable reeling.

[0005] The technical solution of the utility model is as follows:

[0006] The tension control system includes

[0007] a motor, which has a first inlet and outlet and a second inlet and outlet,

[0008] a control valve, which has a first control port and a second control port, and the first control port is communicated with the first inlet and outlet,

[0009] A first one-way valve having a first inlet and a first outlet, the second inlet and outlet being in communication with the first outlet, and the first inlet being in communication with the second control port.

[0010] A second one-way valve having a second inlet and a second outlet, the second inlet being in communication with the first outlet, and the second control port being in communication with the second one-way valve for controlling the closing of the second one-way valve.

[0011] A relief valve in communication with the second outlet.

[0012] As a further technical solution, it further includes

[0013] A receiving box, the relief valve leading to the receiving box.

[0014] As a further technical solution, the control valve is a Y-type reversing valve.

[0015] As a further technical solution, the second control port is in communication with the second outlet to control the closing of the second one-way valve.

[0016] As a further technical solution, the second one-way valve is a hydraulically controlled one-way valve and further has a controlled port, and the second control port is in communication with the controlled port.

[0017] As a further technical solution, it further includes

[0018] A first three-way valve, the first inlet, the second control port, and the controlled port being in communication with the first three-way valve.

[0019] A second three-way valve, the first outlet, the second inlet, and the second control port all being in communication with the second three-way valve.

[0020] As a further technical solution, it further includes

[0021] A circulation pump, both ends of the circulation pump being in communication with the control valve.

[0022] As a further technical solution, it further includes

[0023] A pressure regulating valve connected between the second inlet and outlet and the first outlet.

[0024] The present utility model also proposes a wire winding assembly, including the described tension control system, and further including

[0025] A reel disposed at the driving end of the motor and driven by the motor to rotate.

[0026] A cable wound around the reel.

[0027] The present utility model also provides a roadway vehicle, which includes the wire winding assembly described above, and further includes

[0028] a roadway vehicle body, and the tensioning control system and the drum are arranged on the roadway vehicle body.

[0029] The working principle and beneficial effects of the present utility model are as follows:

[0030] In the present utility model, when it is necessary to keep the drum delivering wire with a constant torque, first operate the control valve to set it for forward hydraulic delivery. At this time, the first control port of the control valve sends out hydraulic pressure. The hydraulic pressure enters the motor through the first inlet and outlet, and then enters the second inlet of the second check valve through the second inlet and outlet. At this time, the hydraulic pressure cannot enter the first check valve nor flow back to the control valve because the direction of the first check valve is reverse check. Then the hydraulic pressure enters the relief valve from the second outlet. The relief valve can be set to maintain a certain pressure, such as 3 MPa. At this time, the motor will also maintain a pressure of 3 MPa, so as to realize the constant torque maintenance of the drum and stably carry out the cable wire delivery.

[0031] When it is necessary to reverse the drum for wire winding, first operate the control valve to set it for reverse hydraulic delivery. At this time, the second control port of the control valve sends out hydraulic pressure. The hydraulic pressure enters from the first inlet of the first check valve, is sent to the second inlet and outlet from the first outlet, and then flows back to the control valve from the first inlet and outlet, so as to realize the rotation drive of the motor and stably and automatically wind the cable on the drum. Among them, in this process, a branch of the hydraulic pressure sent out by the second control port of the control valve is sent to the second outlet of the second check valve, so that the second check valve remains closed to prevent the hydraulic pressure at the first outlet of the first check valve from flowing wrongly to the second inlet of the second check valve. Therefore, overall, it well realizes the constant torque wire delivery when the cable on the drum is delivered, and also realizes the stable and automatic wire winding when the cable on the drum is wound. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The following will further illustrate the above characteristics, technical features, advantages and their implementation manners of the present utility model in a clear and easy-to-understand manner in combination with the drawings of the preferred embodiments.

[0033] Figure 1 It is a schematic diagram of the control structure of the present utility model;

[0034] Figure 2 It is a schematic diagram of the control in the wire delivery state of the present utility model;

[0035] Figure 3 It is a schematic diagram of the control in the wire winding state of the present utility model;

[0036] In the figure: motor - 1, first inlet and outlet - 101, second inlet and outlet - 102, control valve - 2, first control port - 201, second control port - 202, first check valve - 3, first inlet - 301, first outlet - 302, second check valve - 4, second inlet - 401, second outlet - 402, controlled port - 403, overflow valve - 5, receiving box - 6, first three - way valve - 7, second three - way valve - 8, circulation pump - 9, pressure regulating valve - 10, reel - 11, cable - 12. Detailed implementation manners

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, and other implementation manners can also be obtained.

[0038] For the sake of simplicity of the drawing, only the parts related to the utility model are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, for the sake of simplicity and easy understanding of the drawing, in some drawings, components with the same structure or function are only schematically shown as one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0039] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0040] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

[0041] Refer to Figures 1 to 3, this embodiment proposes a tension control system, including a motor 1, which has a first inlet and outlet 101 and a second inlet and outlet 102, and has a first control port 201 and a second control port 202. The first control port 201 is communicated with the first inlet and outlet 101. The first one-way valve 3 has a first inlet 301 and a first outlet 302. The second inlet and outlet 102 is communicated with the first outlet 302. The first inlet 301 is communicated with the second control port 202. The second one-way valve 4 has a second inlet 401 and a second outlet 402. The second inlet 401 is communicated with the first outlet 302. The second control port 202 is communicated with the second one-way valve 4 to control the second one-way valve 4 to close. The overflow valve 5 is communicated with the second outlet 402.

[0042] In this embodiment, in order to achieve the cross-torque wire laying when the cable 12 is payed out on the reel 11 and at the same time achieve the stable automatic wire winding when the cable 12 is wound on the reel 11, the control circuit of the motor 1 driving the reel 11 to rotate is improved. The motor 1 can be either a pneumatic motor or a hydraulic motor, and it can be selected according to the driving torque requirement, and the principles are the same.

[0043] Taking the hydraulic motor as an example, as Figure 2 shown, when it is necessary to keep the reel 11 at a constant torque for wire laying, first operate the control valve 2 to be set to hydraulic forward delivery. At this time, the first control port 201 of the control valve 2 sends out hydraulic pressure. The hydraulic pressure enters the motor 1 through the first inlet and outlet 101, and then enters the second inlet 401 of the second one-way valve 4 through the second inlet and outlet 102. At this time, the hydraulic pressure cannot enter the first one-way valve 3 nor flow back to the control valve 2 because the direction of the first one-way valve 3 is reverse check. Then the hydraulic pressure enters the overflow valve 5 from the second outlet 402. The overflow valve 5 can be set to maintain a certain pressure, such as 3 MPa. At this time, the motor 1 will also maintain a pressure of 3 MPa, so as to achieve the constant torque maintenance of the reel 11 and stably pay out the cable.

[0044] As Figure 3As shown, when the reel 11 needs to reverse for winding, first operate the control valve 2 to set it for hydraulic reverse conveyance. At this time, the second control port 202 of the control valve 2 sends out hydraulic pressure. The hydraulic pressure enters from the first inlet 301 of the first one-way valve 3, is sent to the second inlet and outlet 102 from the first outlet 302, and then flows back to the control valve 2 from the first inlet and outlet 101, thereby realizing the rotational drive of the motor 1 to perform stable automatic winding of the cable 12 on the reel 11. Among them, during this process, a branch of the hydraulic pressure sent out by the second control port 202 of the control valve 2 is sent to the second outlet 402 of the second one-way valve 4, so that the second one-way valve 4 remains closed to prevent the hydraulic pressure at the first outlet 302 of the first one-way valve 3 from flowing wrongly to the second inlet 401 of the second one-way valve 4. Therefore, overall, it well realizes the cross-torque wire release when the cable 12 is being unreeled on the reel 11, and at the same time realizes the stable automatic winding of the cable 12 when the cable 12 is being wound on the reel 11.

[0045] Furthermore, it further includes a receiving tank 6, and the overflow valve 5 leads to the receiving tank 6.

[0046] In this embodiment, by adding the receiving tank 6, the system can more efficiently manage the excess hydraulic pressure generated during the wire release operation. When the system is operating in the wire release mode and the hydraulic pressure is discharged through the overflow valve 5 to maintain a constant pressure, the liquid discharged by the overflow valve 5 will be directly introduced into the receiving tank 6. The receiving tank 6 is designed to collect and store this part of the released liquid for subsequent reuse or treatment, rather than directly discharging it into the environment. This not only helps to save energy but also is beneficial to environmental protection.

[0047] Wire release operation: When the reel 11 performs the wire release operation, the system, through the control of the control valve 2, maintains the motor 1 at a constant pressure, such as 3 MPa, to ensure constant-torque wire release of the cable 12. At this time, the overflow valve 5 plays a key role. It discharges the excess liquid to keep the system pressure stable.

[0048] Liquid collection: The liquid discharged by the overflow valve 5 is not directly released into the air but is introduced into a specially designed receiving tank 6. The receiving tank 6 can be a container with a certain volume for temporarily storing this liquid, avoiding waste of energy. The liquid collected in the receiving tank 6 can be reused. For example, in some cases, this liquid can be recycled back into the system for subsequent operations; or, if the liquid is no longer needed, it can also be safely processed through appropriate treatment methods, such as discharging it into a designated waste liquid treatment system, to ensure compliance with environmental protection requirements. Through the above steps, not only the function of the system is improved, the energy utilization efficiency is increased, but also the concern for environmental protection is reflected, making the entire tension control system meet the operation requirements while also conforming to the concept of sustainable development.

[0049] Furthermore, the control valve 2 is a Y-type directional control valve.

[0050] In this embodiment, the specific type of the control valve 2 can be a Y-type reversing valve, so that the structure is compact and the positive and negative control of the fluid can be realized simply and conveniently.

[0051] Forward conveying mode: When the reel 11 needs to pay out the wire, the operator places the handle or control signal of the Y-type reversing valve in a position. At this time, the first control port 201 flows to the first inlet / outlet 101, and the pneumatic or hydraulic fluid passes through the motor 1 in the positive direction, driving the reel 11 to pay out the wire with constant torque.

[0052] Reverse conveying mode: When the reel 11 needs to take up the wire, the operator changes the position of the Y-type reversing valve 2. At this time, the second control port 202 flows to the second inlet / outlet 102, and the fluid passes through the motor 1 in the reverse direction, driving the reel 11 to take up the wire stably and automatically.

[0053] This design of the Y-type reversing valve 2 enables the system to easily switch between the pay-out and take-up operation modes without complex pipeline layouts or additional control units, simplifies the system design, and improves the operation efficiency. In combination with the coordinated operation of the first check valve 3, the second check valve 4, and the relief valve 5, the Y-type reversing valve can ensure that the pressure in the motor 1 remains at a stable level under different operation modes, achieving precise torque control of the reel 11. By using the Y-type reversing valve as the control valve 2, the tensioning control system can not only realize the stable pay-out and take-up of the cable 12 on the reel 11, but also provide precise pressure control during the operation, ensuring the high efficiency and reliability of the entire system operation.

[0054] Furthermore, the second control port 202 is communicated with the second outlet 402 to control the closing of the second check valve 4.

[0055] In this embodiment, the second control port 202 is communicated with the second outlet 402 to control the second check valve 4. When the control valve 2 receives a signal to close the second check valve 4, it will send a control pressure from the second control port 202, and this control pressure is directed to the second outlet 402 of the second check valve 4. When taking up the wire is required, the control valve 2 sends a closing command to the second check valve 4 through the second control port 202, ensuring that the fluid only flows from the first check valve 3 to the motor 1, thereby driving the reel 11 to take up the wire, and at the same time preventing the reverse flow of the fluid and avoiding pressure loss or instability in the system. By communicating the second control port 202 with the second outlet 402 to control the opening and closing of the second check valve 4, the tensioning control system can more precisely control the fluid flow direction, ensuring stable and efficient control during the pay-out and take-up operations of the cable 12.

[0056] Furthermore, the second check valve 4 is a hydraulically controlled check valve and also has a controlled port 403, and the second control port 202 is communicated with the controlled port 403.

[0057] During the cable 12 take-up operation of the tension control system, the second check valve 4 can be designed as a pilot-operated check valve. When a take-up operation is required, the control valve 2 applies a control pressure to the controlled port 403 of the pilot-operated check valve through the second control port 202, so that the forward passage of the pilot-operated check valve 4 is stably kept closed, and the fluid cannot enter from the second inlet 401, ensuring the stable automatic take-up of the reel 11.

[0058] During the pay-out operation, the control valve 2 does not apply pressure to the controlled port 403. The pilot-operated check valve 4 operates as an ordinary check valve. The hydraulic fluid enters from the second inlet 401, flows out from the second outlet 402, and then flows to the relief valve 5. The pilot-operated check valve can prevent the fluid from flowing back and keep the system pressure stable.

[0059] By using the pilot-operated check valve 4 as the second check valve and connecting its controlled port 403 to the second control port 202 of the control valve 2, the tension control system not only enhances the control ability of the fluid flow direction, but also improves the response speed and operation safety of the system, providing a solid foundation for the precise control of the cable 12.

[0060] Furthermore, it also includes a first three-way valve 7. The first inlet 301, the second control port 202, and the controlled port 403 are connected to the first three-way valve 7. The first outlet 302, the second inlet 401, and the second control port 202 are all connected to the second three-way valve 8.

[0061] In this embodiment, by introducing the first three-way valve 7 and the second three-way valve 8, the flow direction of the fluid can be managed and controlled more flexibly. The first three-way valve 7 connects the first inlet 301, the second control port 202, and the controlled port 403 of the pilot-operated check valve 4. When the system needs to control the opening state of the pilot-operated check valve 4, the first three-way valve 7 is used to guide the control pressure from the second control port 202 to the controlled port 403. Or when control is not required, the controlled port 403 is connected to the first inlet 301 to form a bypass to prevent the control pressure from interfering with the normal fluid flow. The second three-way valve 8 connects the first outlet 302, the second inlet 401, and the second control port 202. In the system, the second three-way valve 8 is mainly used to selectively guide the fluid from the first outlet 302 to the second inlet 401 or direct the control pressure through the second control port 202 under different operation modes to achieve the control of the pilot-operated check valve 4. In practical applications in the tension control system, the addition of the first three-way valve 7 and the second three-way valve 8 provides a more refined control means for the pay-out and take-up operations of the cable 12.

[0062] Furthermore, it also includes a circulation pump 9. Both ends of the circulation pump 9 are connected to the control valve 2.

[0063] In this embodiment, a circulation pump 9 is connected to the control valve 2, which can deliver hydraulic pressure to the control valve 2, and then realize the forward and reverse delivery of hydraulic pressure through the control valve 2. By adding the circulation pump 9 to the tension control system, the system can not only achieve efficient circulation of the fluid, maintain stable pressure and temperature, but also improve the overall operation efficiency and reliability through the cleaning management of the fluid.

[0064] Furthermore, a pressure regulating valve 10 is further included, and the pressure regulating valve 10 is connected between the second inlet / outlet 102 and the first outlet 302.

[0065] In this embodiment, a pressure regulating valve 10 is introduced into the tension control system. This valve is connected between the second inlet / outlet 102 and the first outlet 302. Its main function is to regulate and stabilize the pressure in the system, ensuring that the motor 1 and the entire system can maintain at a preset pressure level during operation. The pressure regulating valve 10 can sense the pressure change in the system and automatically adjust the position of its internal valve flap or piston to maintain the set pressure value. When the system pressure rises, the pressure regulating valve 10 will open to allow the excess fluid to flow back to the fuel tank or the low-pressure area, and vice versa. Regardless of how the system load changes, the pressure regulating valve 10 can ensure that the fluid pressure is stabilized near a target value, which is crucial for maintaining the constant torque output of the motor 1 and extending the service life of the system components. The pressure regulating valve 10 also acts as a safety valve. Once the system pressure exceeds the preset safety threshold, it will immediately open to release the excessive pressure and prevent equipment damage.

[0066] Applied in the tension control system, the pressure regulating valve 10 is of great significance for the pay-out and reeling-in operations of the cable 12: During the pay-out process, the pressure regulating valve 10 can ensure stable fluid pressure. Even when the tension of the cable 12 changes, it can maintain the constant torque output of the motor 1 and ensure the smooth pay-out of the cable 12. During the reeling-in process, the role of the pressure regulating valve 10 is equally crucial. It can adjust the pressure in real time according to the change in the tension of the cable 12 on the reel 11 to ensure the stability and safety during the reeling-in process. Conclusion By adding the pressure regulating valve 10 to the tension control system, not only can the precise control of the system pressure be achieved, but also the overall stability and safety of the system can be improved. This is crucial for industrial applications that require high-precision control and long-term continuous operation, which helps to improve production efficiency, reduce equipment maintenance costs, and ensure the safety of operators.

[0067] This embodiment also proposes a wire winding assembly. The tension control system further includes a reel 11. The reel 11 is arranged at the driving end of the motor 1 and is driven by the motor 1 to rotate. The cable 12 is wound around the reel 11.

[0068] This embodiment also proposes a roadway vehicle, including a wire winding assembly. It further includes a roadway vehicle body, and the tension control system and the reel 11 are arranged on the roadway vehicle body.

[0069] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. Tension control system, characterized in that: include A motor (1), wherein the motor (1) has a first inlet and outlet (101) and a second inlet and outlet (102), A control valve (2), the control valve (2) having a first control port (201) and a second control port (202), the first control port (201) being in communication with the first inlet and outlet (101), a first one-way valve (3), the first one-way valve (3) having a first inlet (301) and a first outlet (302), the second inlet (102) being in communication with the first outlet (302), the first inlet (301) being in communication with the second control port (202), a second one-way valve (4), the second one-way valve (4) having a second inlet (401) and a second outlet (402), the second inlet (401) being in communication with the first outlet (302), the second control port (202) being in communication with the second one-way valve (4) for controlling the second one-way valve (4) to be closed, A relief valve (5), the relief valve (5) being in communication with the second outlet (402).

2. The tension control system according to claim 1, characterized in that: Also includes A receiving box (6), the overflow valve (5) leads to the receiving box (6).

3. The tension control system according to claim 1, characterized in that: The control valve (2) is a Y-type reversing valve.

4. The tension control system according to claim 1, characterized in that: The second control port (202) is in communication with the second outlet (402) to control the second one-way valve (4) to close.

5. The tension control system according to claim 1, characterized in that: The second one-way valve (4) is a hydraulically controlled one-way valve, and further comprises a controlled port (403), and the second control port (202) is in communication with the controlled port (403).

6. The tension control system according to claim 5, characterized in that: Also includes a first three-way valve (7), wherein the first inlet (301), the second control port (202), and the controlled port (403) are in communication with the first three-way valve (7), A second three-way valve (8), wherein the first outlet (302), the second inlet (401), and the second control port (202) are all in communication with the second three-way valve (8).

7. The tension control system according to claim 1, characterized in that: Also includes A circulation pump (9), wherein both ends of the circulation pump (9) are connected to the control valve (2).

8. The tension control system according to claim 1, characterized in that: Also includes A pressure regulating valve (10), the pressure regulating valve (10) being connected between the second inlet and outlet (102) and the first outlet (302).

9. A winding assembly, characterized in that: The tension control system comprises the tension control system according to any one of claims 1 to 8, and further comprises a reel (11), the reel (11) being arranged at a driving end of the motor (1) and being driven to rotate by the motor (1), A cable (12), wherein the cable (12) is wound on the reel (11).

10. A roadway vehicle, characterized in that: The wire winding assembly according to claim 9 further comprises A tunnel vehicle body, the tension control system and the reel (11) are arranged on the tunnel vehicle body.

Images