Hydraulic control valve group

Abstract

The utility model relates to the field of deicing distribution truck hydraulic devices, in particular to a hydraulic control valve bank which comprises a control valve assembly and a valve body, the control valve assembly is inserted into the valve body, and the valve body is connected between a deicing spray head hydraulic oil way of a deicing distribution truck and the control valve assembly. And when the control valve assembly receives the hydraulic control signal, the deicing nozzle is controlled to rotate at different angles in different directions. The method has the effect of improving the control accuracy of the deicing nozzle.

Description

Technical Field

[0001] This application relates to the field of hydraulic devices for de-icing and spraying vehicles, and in particular to a hydraulic control valve assembly. Background Technology

[0002] De-icing sprayers are specialized equipment used for de-icing roads, especially for airport runways where certain surface requirements exist.

[0003] In related technologies, the control of the spreading motor and the de-icing nozzles on the de-icing sprinkler truck requires the installation of corresponding hydraulic control valve groups to provide corresponding hydraulic control for the de-icing sprinkler truck to the de-icing nozzles and the spreading motor.

[0004] Regarding the aforementioned technologies, a high degree of control accuracy is required when providing hydraulic control for the de-icing nozzles to ensure accurate coverage of the road surface when spraying de-icing agents. Utility Model Content

[0005] To improve the accuracy of controlling the de-icing nozzles, this application provides a hydraulic control valve assembly.

[0006] The hydraulic control valve assembly provided in this application adopts the following technical solution:

[0007] A hydraulic control valve assembly includes a control valve assembly and a valve body. The control valve assembly is inserted into the valve body. The valve body is connected between the hydraulic oil circuit of the de-icing nozzle of the de-icing sprinkler truck and the control valve assembly. When the control valve assembly receives a hydraulic control signal, it controls the de-icing nozzle to rotate in different directions by different angles.

[0008] By adopting the above technical solution, the control valve assembly receives hydraulic control signals to control the rotation angle of the de-icing nozzle, so that the de-icing nozzle can be rotated to different required angles under accurate angle control, thereby accurately spraying de-icing agent onto the airport runway surface.

[0009] Optionally, the control valve assembly includes:

[0010] An electromagnetic reversing valve assembly is inserted into the valve body and is used to receive hydraulic control signals from the de-icing spreader and control the opening and closing of the hydraulic control oil circuit of the de-icing nozzle to drive the de-icing nozzle to change its turning angle.

[0011] A throttle valve is inserted into the valve body and is connected to the hydraulic control oil circuit of the de-icing nozzle to control the flow rate.

[0012] By adopting the above technical solution, the electromagnetic reversing valve group and the throttle valve work together to enable the electromagnetic reversing valve group to accurately control the steering angle when it receives a hydraulic control signal. This improves the accuracy of angle adjustment during the de-icing nozzle's steering spraying of the de-icing agent. At the same time, the use of the throttle valve helps to improve the stability of flow control in the oil circuit.

[0013] Optionally, the valve body is also provided with a one-way throttle valve, which is connected to the hydraulic control oil circuit of the de-icing nozzle and is used to control the flow rate of the one-way hydraulic pressure.

[0014] By adopting the above technical solution, the use of a one-way throttle valve further increases the accuracy of flow control in the oil circuit and enables one-way flow in the oil circuit, reducing the probability of oil backflow in the oil circuit.

[0015] Optionally, the valve body has multiple internal flow channels and multiple oil circuit structures for connecting the hydraulic control oil circuit of the control valve assembly and the de-icing nozzle.

[0016] By adopting the above technical solution, the valve body is provided with multiple corresponding internal flow channels to connect with the control valve assembly and the de-icing sprayer, thereby completing the corresponding hydraulic control and enabling the de-icing nozzle to be adjusted in angle according to human control.

[0017] Optionally, the maximum flow rate of the internal flow channel is 200 L / min.

[0018] By adopting the above technical solution, the flow input and output requirements of the oil circuit with an input flow rate of up to 200 liters per minute can be met.

[0019] Optionally, the maximum input pressure of the internal flow channel is 250 bar.

[0020] By adopting the above technical solution, the internal flow channel can withstand an input pressure of less than or equal to 250 MPa of oil pressure.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. The electromagnetic reversing valve assembly and the throttle valve work together to enable the electromagnetic reversing valve assembly to accurately control the steering angle when it receives a hydraulic control signal. This improves the accuracy of the angle adjustment of the de-icing nozzle during the steering spraying of the de-icing agent. At the same time, the use of the throttle valve helps to improve the stability of flow control in the oil circuit.

[0023] 2. The use of a one-way throttle valve further increases the accuracy of flow control in the oil circuit and enables one-way flow in the oil circuit, reducing the probability of oil backflow in the oil circuit. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a hydraulic control valve assembly according to this application.

[0025] Figure 2 This is a side view of a hydraulic control valve assembly according to this application.

[0026] Explanation of reference numerals in the attached diagram: 1. Control valve assembly; 11. Solenoid directional valve assembly; 12. Throttle valve; 13. One-way throttle valve; 2. Valve body; 21. Internal flow path; 22. P port; 23. T-IV port; 24. TI port; 25. FUEL port; 26. Blower port. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0028] This application discloses a hydraulic control valve assembly applied to a de-icing sprayer truck. (See also...) Figure 1 and Figure 2 The hydraulic control valve assembly includes a control valve assembly 1 and a valve body 2. The control valve assembly 1 is plugged into and installed on the valve body 2. The valve body 2 has multiple internal flow channels 21 for the control valve assembly 1 to connect. When the hydraulic control oil circuit of the de-icing nozzle on the de-icing sprinkler truck is connected to the valve body 2, under the hydraulic control and adjustment of the control valve assembly 1, the on / off state and flow rate of the de-icing nozzle control oil circuit can be controlled, so that the de-icing nozzle can accurately rotate to the required angle when spraying de-icing agent, which helps to improve the spraying accuracy.

[0029] Reference Figure 1 and Figure 2 The valve body 2 has several ports, including P port 22, T-IV port 23, TI port 24, FUEL port 25, and blower port 26. P port 22 connects to the hydraulic pump of the de-icing spreader. T-IV port 23 connects to the spreader motor, TI port 24 connects to the lifting cylinder, FUEL port 25 connects to the injection motor, and blower port 26 connects to the blower. Furthermore, the valve body 2 is connected to each port via an internal flow channel 21. In this embodiment, the maximum flow rate of the internal flow channel 21 is 200 L / min, and the maximum input pressure is 250 bar.

[0030] Reference Figure 1The control valve assembly 1 includes an electromagnetic directional valve group 11 and a throttle valve 12. The electromagnetic directional valve group 11 includes multiple electromagnetic directional valves. In this embodiment, four electromagnetic directional valves are used as an example. All four electromagnetic directional valves are connected to the internal flow channel 21 on the valve body 2. The multiple electromagnetic directional valves can receive hydraulic control signals from the de-icing spreader and adjust the flow accordingly to control the direction of the de-icing nozzles. After the throttle valve 12 is connected to the internal flow channel 21, it controls the flow rate of the oil in the internal flow channel 21, thereby controlling the operating speed of the actuator in this path.

[0031] Reference Figure 1 The valve body 2 is also equipped with a one-way throttle valve 13, which is connected to the internal flow channel 21 to control the flow direction of the oil in the corresponding internal flow channel 21, so that the oil forms a one-way flow state, thereby the one-way throttle valve 13 can control the flow rate of this actuator in one direction.

[0032] The implementation principle of a hydraulic control valve group in this application embodiment is as follows: When the de-icing spreader sends a hydraulic control signal under the control of personnel, the steering solenoid valve group 11 receives and responds to the hydraulic control signal, so as to control the oil flow and hydraulic pressure through the internal flow channel 21, thereby controlling the opening and closing of the hydraulic control oil circuit and the flow of the de-icing nozzle, and completing the accurate control of the steering angle of the de-icing nozzle.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A hydraulic control valve assembly, applied to a de-icing sprayer truck, wherein the de-icing sprayer truck is equipped with a hydraulic control oil circuit for de-icing nozzles, characterized in that: It includes a control valve assembly (1) and a valve body (2). The control valve assembly (1) is inserted into the valve body (2). The valve body (2) is connected between the hydraulic oil circuit of the de-icing nozzle of the de-icing sprinkler truck and the control valve assembly (1). When the control valve assembly (1) receives a hydraulic control signal, it controls the de-icing nozzle to rotate in different directions.

2. A hydraulic control valve assembly according to claim 1, characterized in that: The control valve assembly (1) includes: The electromagnetic reversing valve assembly (11) is plugged into the valve body (2) and is used to receive the hydraulic control signal sent by the de-icing spreader and control the opening and closing of the hydraulic control oil circuit of the de-icing nozzle so as to drive the de-icing nozzle to change the turning angle. A throttle valve (12) is inserted into the valve body (2). The throttle valve (12) is connected to the hydraulic control oil circuit of the de-icing nozzle and is used to control the flow rate.

3. A hydraulic control valve assembly according to claim 2, characterized in that: The valve body (2) is also provided with a one-way throttle valve (13), which is connected to the hydraulic control oil circuit of the de-icing nozzle and is used to control the flow rate of the one-way hydraulic pressure.

4. A hydraulic control valve assembly according to claim 1, characterized in that: The valve body (2) has multiple internal flow channels (21) and multiple oil circuit structures for connecting the hydraulic control oil circuit of the control valve assembly (1) and the de-icing nozzle.

5. A hydraulic control valve assembly according to claim 4, characterized in that: The maximum flow rate of the internal flow channel (21) is 200 L / min.

6. A hydraulic control valve assembly according to claim 4, characterized in that: The maximum input pressure of the internal flow channel (21) is 250 bar.

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