Novel stringing winch control valve
By integrating the design of the rope winch control valve, the problems of numerous components, inability to operate with a single oil source, and poor speed regulation performance have been solved, achieving the effects of simplifying pipelines, improving reliability, and reducing costs.
Patent Information
- Application Number
- CN202520527794.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Existing rope winch systems have numerous components and complex connections. A single oil source cannot guarantee normal operation. They also have poor speed regulation performance, many oil leaks, high costs, and low reliability.
The rope winch control valve adopts an integrated design, including an internal directional valve, relief valve, pressure reducing valve, etc. It uses a proportional control valve to achieve flow and pressure control, reduces the number of components, integrates a single oil source to complete the action, and sets up a pressure measurement interface to improve the convenience of troubleshooting.
It simplifies pipeline connections, reduces oil leakage points, improves system reliability and speed adjustment convenience, reduces production costs, and achieves real-time speed adjustment and stable operation.
Smart Images
Figure CN223881453U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of engineering machinery, concretely relates to a rope threading winch control valve. BACKGROUND
[0002] With the continuous development of engineering machinery technology, the lifting capacity of the crane continues to rise, the lifting height increases day by day, and the scale of the winch on the crane (whether it is the main winch or the tower arm winch) is also getting larger and larger. Correspondingly, its steel wire rope becomes thicker and longer. In the process of using the tower arm working condition, usually more times, which requires the connection of pulley blocks, and the steel wire rope needs to shuttle frequently between the pulley blocks. At the same time, because the tower arm is very long, the operator needs to pull the steel wire rope for dozens of meters or even hundreds of meters, and the heavy steel wire rope brings great trouble to the operator.
[0003] Under this condition, the rope threading winch emerges as the times require, which can assist the operator to pull the rope and effectively reduce the labor intensity. However, the current rope threading winch has many problems in control. It has a separate reversing valve, back pressure valve, oil supplement valve, brake control valve, motor oil source, brake oil source and many other elements. The large number of elements leads to more pipelines and joints, and even special joints such as reducing diameter are needed. These complex connection methods make the pipeline system complicated, not only causing high cost, but also increasing the oil leakage points and greatly reducing the reliability. In addition, the brake and motor drive must rely on two oil sources, and only one oil source cannot complete the action of the rope threading winch, and the winch speed cannot be controlled in real time, and the speed regulation performance is poor. UTILITY MODEL CONTENTS
[0004] In view of the deficiencies of the prior art, the utility model provides a rope threading winch control valve, which solves the problems of too many elements and complex connection in the existing rope threading winch system. The use of pressure reducing valve breaks through the limitation that single oil source cannot guarantee the normal operation of rope threading winch in the prior art. With the help of proportional control valve, the poor speed regulation performance of the prior art is improved. At the same time, through integrated design, the cost of rope threading winch system is reduced, the number of oil leakage points is reduced, and the system reliability is improved, which solves the problems proposed in the background technology.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A novel control valve for a rope passing winch, the control valve being in communication with a rope passing winch motor and a rope passing winch brake respectively, the control valve also being in communication with an external oil source, an oil tank one and an oil tank two, the control valve comprising an internal reversing valve one, an overflow valve one, an overflow valve two, a reversing valve two and a pressure reducing valve, the reversing valve one having a first oil port, a second oil port, a third oil port and a fourth oil port and having three working positions, in a first working position, the first oil port thereof being in communication with the third oil port and the fourth oil port being in communication with the second oil port, in a second working position, each oil port being blocked, in a third working position, the first oil port thereof being in communication with the fourth oil port and the third oil port being in communication with the second oil port, the third oil port and the fourth oil port of the reversing valve one being in communication with the rope passing winch motor respectively, the oil inlet of the overflow valve one and the oil inlet of the overflow valve two being in communication with the third oil port and the fourth oil port of the reversing valve one respectively, the oil outlet of the overflow valve one and the oil outlet of the overflow valve two being in communication with the second oil port of the reversing valve one or being in communication with the fourth oil port and the third oil port of the reversing valve one respectively, the first oil port and the second oil port of the reversing valve one being in communication with the oil source and the oil tank one respectively, the flow of the oil inlet oil passage of the first oil port of the reversing valve one being adjustable;
[0007] the reversing valve two having an oil inlet, an oil return and a working oil port and having three working positions, in a first working position, the oil inlet thereof being in communication with the working oil port, in a second working position, each oil port being blocked, in a third working position, the working oil port thereof being in communication with the oil outlet, the oil inlet of the reversing valve two being in communication with the first oil port of the reversing valve one, a pressure reducing valve being arranged on the oil inlet oil passage of the reversing valve two, the oil return of the reversing valve two being in communication with the oil tank two, the rope passing winch brake being in communication with the working oil port of the reversing valve two.
[0008] As a further preferred solution, the control valve further comprises a one-way valve one and a one-way valve two, the oil inlet and the oil outlet of the one-way valve one being in communication with the second oil port and the third oil port of the reversing valve one respectively, the oil inlet and the oil outlet of the one-way valve two being in communication with the second oil port and the fourth oil port of the reversing valve one respectively.
[0009] As a further preferred solution, a back pressure valve is arranged on the oil passage of the second oil port of the reversing valve one.
[0010] As a further preferred solution, the oil outlet of the rope passing winch motor is in communication with the oil tank two.
[0011] As a further preferred solution, the reversing valve one is a proportional reversing valve.
[0012] As a further preferred solution, the oil source one is an oil source with real-time adjustable flow.
[0013] As a further preferred solution, a throttle valve is arranged on the oil inlet oil passage of the reversing valve one.
[0014] As a further preferred solution, a pressure measuring interface is arranged on the oil path through which the second reversing valve communicates with the pressure reducing valve, the oil path through which the second reversing valve communicates with the rope-through winch brake, the oil path through which the pressure reducing valve communicates with the first oil port of the first reversing valve, the oil inlet path of the first overflow valve and the oil inlet path of the second overflow valve, the oil outlet path of the first one-way valve and the oil outlet path of the second one-way valve, the oil inlet path of the first overflow valve and the oil outlet path of the first one-way valve share the same pressure measuring interface, and the oil inlet path of the second overflow valve and the oil outlet path of the second one-way valve share the same pressure measuring interface.
[0015] As a further preferred solution, the first reversing valve and the second reversing valve in the control valve are solenoid valves, and the rest are hydraulic valves.
[0016] Compared with the prior art, the utility model has the following beneficial effects:
[0017] 1、Compared with the prior art, the utility model reduces the number of components used, makes the pipeline connection simple and clear, not only effectively reduces the oil leakage points, but also significantly improves the reliability.
[0018] 2、Greatly improves the convenience of rope-through winch speed regulation, can realize real-time speed regulation during rope-through winch operation, better meets the actual operation demand.
[0019] 3、Reduces the number of oil sources, only one oil source is needed to smoothly complete the rope-through winch action, optimizes the system structure and resource utilization.
[0020] 4、Through integrated design, the production cost is effectively reduced, and the performance-price ratio of the product is improved.
[0021] 5、Pressure measuring interfaces are arranged at each node, which greatly improves the convenience of troubleshooting, helps to quickly locate and solve problems, and ensures the stable operation of the system. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0023] Figure 2 It is a schematic diagram of the utility model in the rope-through winch system;
[0024] Figure 3 It is a schematic diagram of another embodiment of the utility model.
[0025] In the above figure: 1, oil source; 2, control valve; 21, reversing valve two; 22, overflow valve one; 23, reversing valve one; 24, overflow valve two; 25, pressure reducing valve; 26, check valve one; 27, back pressure valve; 28, check valve two; 3, rope passing winch motor; 4, rope passing winch brake; 5, oil tank one; 6, oil tank two; P, first oil port; T, second oil port; A, third oil port; B, fourth oil port. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0027] As shown in Figure 1 and Figure 2 , a novel rope passing winch control valve, the control valve 2 is communicated with the rope passing winch motor 3 and the rope passing winch brake 4 respectively, the control valve 2 is also communicated with the oil source 1, the oil tank one 5 and the oil tank two 6, the control valve 2 comprises reversing valve one 23, overflow valve one 22, overflow valve two 24, reversing valve two 21 and pressure reducing valve 25, etc., the reversing valve one 23 has first oil port P, second oil port T, third oil port A and fourth oil port B, and has three working positions, in the first working position, its first oil port P is communicated with the third oil port A, and the fourth oil port B is communicated with the second oil port T; in the second working position, each oil port is cut off; in the third working position, its first oil port P is communicated with the fourth oil port B, and the third oil port A is communicated with the second oil port T; the third oil port A and the fourth oil port B of the reversing valve one 23 are communicated with the rope passing winch motor 3 respectively, so that the motor can rotate and drive the winch to reel in and out the rope.
[0028] Further, the oil inlet and the oil outlet of the overflow valve one 22 are communicated with the third oil port A and the second oil port T of the reversing valve one 23 respectively, the oil inlet and the oil outlet of the overflow valve two 24 are communicated with the fourth oil port B and the second oil port T of the reversing valve one 23 respectively, the first oil port P and the second oil port T of the reversing valve one 23 are communicated with the oil source 1 and the oil tank one 5 respectively, the setting of the overflow valve one 22 and the overflow valve two 24 plays a pressure limiting protection role for the two oil paths of the rope passing winch hoisting and lowering, and pressure limiting protection is carried out when the system pressure is too high.
[0029] In another embodiment, as shown in Figure 3 , the oil outlets of the overflow valve one 22 and the overflow valve two 24 can not be arranged at the second oil port T of the reversing valve one 23, the oil outlet of the overflow valve one 22 is communicated with the fourth oil port B of the reversing valve one 23, and the oil outlet of the overflow valve two 24 is communicated with the third oil port A of the reversing valve one 23.
[0030] Further, the oil inlet oil path of the first oil port P of the reversing valve one 23 communicated with the oil source 1 is adjustable, in order to realize the adjustable flow, the reversing valve one 23 is a proportional reversing valve, which is a kind of reversing valve that can adjust the opening size according to the current value, to realize the flow and pressure control, for the rope passing winch action reversing and real-time adjustment of the rope passing winch speed.
[0031] In another embodiment, the oil source 1 can also be a real-time adjustable flow oil source 1 or a throttle valve is arranged on the oil inlet oil path of the reversing valve one 23 to realize the real-time adjustment function of the rope passing winch speed.
[0032] Further, the control valve 2 further comprises a one-way valve one 26 and a one-way valve two 28, the oil inlet port and the oil outlet port of the one-way valve one 26 are communicated with the second oil port T and the third oil port A of the reversing valve one 23 respectively, the oil inlet port and the oil outlet port of the one-way valve two 28 are communicated with the second oil port T and the fourth oil port B of the reversing valve one 23 respectively, because the rope passing winch brake 4 has a certain delay and cannot be closed synchronously with the rope passing winch motor 3, the winch will still rotate due to inertia, at this time, the two one-way valves play a role in timely supplementing oil to the rope passing winch motor 3 to prevent it from being burned out due to suction.
[0033] Further, the oil path of the second oil port T of the reversing valve one 23 communicated with the oil tank one 5 is provided with a back pressure valve 27, so that the speed of the rope passing winch motor 3 is stable and it is prevented from reversing.
[0034] The reversing valve two 21 has an oil inlet port, an oil return port and a working oil port and has three working positions, in the first working position, the oil inlet port is communicated with the working oil port; in the second working position, each oil port is cut off; in the third working position, the working oil port is communicated with the oil outlet port; the rope passing winch brake 4 is communicated with the working oil port of the reversing valve two 21, the reversing valve two 21 plays a role in opening the rope passing winch brake 4; the oil inlet port of the reversing valve two 21 is communicated with the first oil port P of the reversing valve one 23, a pressure reducing valve 25 is arranged on the oil inlet oil path of the reversing valve two 21, the pressure reducing valve 25 is used to reduce the high pressure oil of the oil source 1 to a pressure suitable for opening the rope passing winch brake 4, the oil return port of the reversing valve two 21 is communicated with the oil tank two 6.
[0035] Further, the oil drain oil path of the rope passing winch motor 3 and the oil return oil path of the reversing valve two 21 are combined in the same oil path, the oil drain port of the rope passing winch motor 3 is communicated with the oil tank two 6.
[0036] Further, the oil paths of the reversing valve two 21 and the pressure reducing valve 25, the oil paths of the reversing valve two 21 and the rope-through winch brake 4, the oil paths of the pressure reducing valve 25 and the first oil port P of the reversing valve one 23, the inlet oil path of the overflow valve one 22 and the outlet oil path of the one-way valve one 26, and the inlet oil path of the overflow valve two 24 and the outlet oil path of the one-way valve two 28 are all provided with pressure measuring interfaces, the inlet oil path of the overflow valve one 22 and the outlet oil path of the one-way valve one 26 use the same pressure measuring interface, the inlet oil path of the overflow valve two 24 and the outlet oil path of the one-way valve two 28 use the same pressure measuring interface, and these pressure measuring interfaces are MP2, MA2, MP, MA1 and MB1 in sequence, so that each node can be measured, and the convenience of troubleshooting is improved.
[0037] Further, the reversing valve one 23 and the reversing valve two 21 in the control valve 2 are solenoid valves, and the others are hydraulic valves.
[0038] The working process of the rope-through winch control valve is as follows:
[0039] The power oil is provided by the oil source 1 to the first oil port P of the reversing valve one 23, and at the same time, the power oil is provided to the reversing valve two 21 through the pressure reducing valve 25, when the rope-through winch needs to be lifted (the rope is reeled in), the control end Y1 of the reversing valve two 21 and the control end Y2B of the reversing valve one 23 are controlled to be electrified at the same time, Y1 is electrified, the reversing valve two 21 supplies oil from the working oil port to open the rope-through winch brake 4, so that the rope-through winch can rotate. At the same time, Y2B of the reversing valve one 23 is electrified, the power oil is provided from the first oil port P to the third oil port A of the reversing valve one 23, passes through the rope-through winch motor 3, drives the motor to rotate, drives the winch to reel in the rope, and then the oil is provided from the fourth oil port B to the second oil port T of the reversing valve one 23, returns to the oil tank one 5 through the back pressure valve 27. When the action is completed and stopped, Y1 and Y2B are controlled to be de-energized at the same time, the reversing valve one 23 and the reversing valve two 21 are reset, the oil supply is stopped, the oil path of the rope-through winch brake 4 returns to the oil tank two 6 through the oil outlet of the reversing valve two 21, the rope-through winch brake 4 is closed, and the winch stops rotating.
[0040] When the rope-through winch needs to be lowered (the rope is unreeled), the control end Y1 of the reversing valve two 21 and the control end Y2A of the reversing valve one 23 are controlled to be electrified at the same time, Y1 is electrified, the reversing valve two 21 supplies oil from the working oil port to open the rope-through winch brake 4, so that the rope-through winch can rotate. At the same time, Y2A of the reversing valve one 23 is electrified, the power oil is provided from the first oil port P to the fourth oil port B of the reversing valve one 23, passes through the rope-through winch motor 3, drives the motor to rotate, drives the winch to reel in the rope, and then the oil is provided from the third oil port A to the second oil port T of the reversing valve one 23, returns to the oil tank one 5 through the back pressure valve 27. When the action is completed and stopped, Y1 and Y2A are controlled to be de-energized at the same time, the reversing valve one 23 and the reversing valve two 21 are reset, the oil supply is stopped, the oil path of the rope-through winch brake 4 returns to the oil tank two 6 through the oil outlet of the reversing valve two 21, the rope-through winch brake 4 is closed, and the winch stops rotating.
[0041] The preferred embodiments of the present application are described in detail above, but the present application is not limited to the specific details of the above-described embodiments, and various equivalent transformations of the technical solutions of the present application can be made within the technical concept of the present application, and these equivalent transformations all belong to the protection scope of the present application.
Claims
1. A novel rope passing winch control valve, said control valve (2) being in communication with a rope passing winch motor (3) and a rope passing winch brake (4) respectively, characterized in that: The control valve (2) also communicates with the external oil source (1), oil tank one (5) and oil tank two (6), the control valve (2) includes built-in reversing valve one (23), overflow valve one (22), overflow valve two (24), reversing valve two (21) and pressure reducing valve (25), the reversing valve one (23) has first oil port (P), second oil port (T), third oil port (A) and fourth oil port (B), and has three working positions, in the first working position, its first oil port (P) communicates with the third oil port (A), and the fourth oil port (B) communicates with the second oil port (T); in the second working position, each oil port is cut off; in the third working position, its first oil port (P) communicates with the fourth oil port (B), and the third oil port (A) communicates with the second oil port (T); the third oil port (A) and the fourth oil port (B) of the reversing valve one (23) respectively communicate with the rope winding and pulling motor (3), the oil inlet of the overflow valve one (22) and the overflow valve two (24) respectively communicate with the third oil port (A) and the fourth oil port (B) of the reversing valve one (23), the oil outlet of the overflow valve one (22) and the overflow valve two (24) respectively communicate with the second oil port (T) of the reversing valve one (23) or respectively communicate with the fourth oil port (B) and the third oil port (A) of the reversing valve one (23), the first oil port (P) and the second oil port (T) of the reversing valve one (23) respectively communicate with the oil source (1) and the oil tank one (5), the flow of the oil inlet oil path of the first oil port (P) of the reversing valve one (23) and the oil source (1) is adjustable; The reversing valve two (21) has an oil inlet, an oil return and a working oil port and has three working positions, in the first working position, its oil inlet communicates with the working oil port; in the second working position, each oil port is cut off; in the third working position, its working oil port communicates with the oil outlet; the oil inlet of the reversing valve two (21) communicates with the first oil port (P) of the reversing valve one (23), the pressure reducing valve (25) is arranged on the oil inlet oil path of the reversing valve two (21), the oil return of the reversing valve two (21) communicates with the oil tank two (6), and the rope winding and pulling brake (4) communicates with the working oil port of the reversing valve two (21).
2. A novel rope passing winch control valve according to claim 1, characterized in that: The control valve (2) further includes one-way valve one (26) and one-way valve two (28), the oil inlet and the oil outlet of the one-way valve one (26) respectively communicate with the second oil port (T) and the third oil port (A) of the reversing valve one (23), and the oil inlet and the oil outlet of the one-way valve two (28) respectively communicate with the second oil port (T) and the fourth oil port (B) of the reversing valve one (23).
3. A new type of rope passing winch control valve according to claim 1, characterized in that: The oil path, in which the second oil port (T) of the reversing valve one (23) communicates with the oil tank one (5), is provided with a back pressure valve (27).
4. A new type of rope passing winch control valve according to claim 1, characterized in that: The oil outlet of the rope winding and pulling motor (3) communicates with the oil tank two (6).
5. A new type of rope passing winch control valve according to claim 1, characterized in that: The reversing valve one (23) is a proportional reversing valve.
6. A new type of rope passing winch control valve according to claim 1, characterized in that: The oil source (1) is an oil source (1) with real-time adjustable flow.
7. A new type of rope passing winch control valve according to claim 1 characterized in that: The oil inlet oil path of the reversing valve one (23) is provided with a throttle valve.
8. A new type of rope passing winch control valve according to claim 1 or 2 or 3, characterized in that: The oil line communicated between the reversing valve two (21) and the pressure reducing valve (25), the oil line communicated between the reversing valve two (21) and the rope-through winch brake (4), the oil line communicated between the pressure reducing valve (25) and the first oil port (P) of the reversing valve one (23), the oil inlet oil line of the overflow valve one (22) and the overflow valve two (24), the oil outlet oil line of the one-way valve one (26) and the one-way valve two (28) are all provided with pressure measuring interfaces, the oil inlet oil line of the overflow valve one (22) and the oil outlet oil line of the one-way valve one (26) use the same pressure measuring interface, and the oil inlet oil line of the overflow valve two (24) and the oil outlet oil line of the one-way valve two (28) use the same pressure measuring interface.
9. A new type of rope passing winch control valve according to any one of claims 1 to 7, characterized in that: The reversing valve one (23) and the reversing valve two (21) in the control valve (2) are solenoid valves, and the others are all hydraulic valves.