A distributor for a servo cylinder

Abstract

The utility model belongs to the technical field of oil cylinder distributor, concretely is a kind of distributor for servo oil cylinder, including distributor valve block, four channels P, T, X, L are equipped in the distributor valve block, four channels P, T, X, L correspond four oil supply and discharge flow channels required when servo oil cylinder works, the device adopts centralized power oil source to supply oil to multiple servo oil cylinders, simultaneously realizes the real-time independent control of each servo oil cylinder by the pressure adjusting device of each channel, avoids the cost waste caused by the repeated configuration of multiple independent oil source equipment.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder distributor technology, specifically a distributor for servo hydraulic cylinders. Background Technology

[0002] Each servo cylinder requires independent hydraulic power output to achieve precise control. This leads to the common phenomenon of multiple independent hydraulic power source devices being repeatedly configured in traditional testing systems. This configuration method has significant drawbacks: on the one hand, the repeated purchase, installation, and maintenance of independent hydraulic power source devices will result in a large amount of cost waste, including equipment purchase costs, site occupation costs, and subsequent operation and maintenance costs; on the other hand, when multiple hydraulic power source devices work in parallel, it is difficult to achieve centralized coordination and unified management of oil supply pressure and flow, which may lead to inconsistent power output of each servo cylinder during the test, affecting the accuracy and stability of the test data.

[0003] With the diversification of testing needs, the demand for simultaneous oil supply to multiple servo cylinders and real-time independent control is becoming increasingly urgent. Current technologies lack a distribution device that can efficiently integrate a centralized power oil source, achieve multi-channel on-demand hydraulic oil distribution, and flexibly adjust the pressure of each channel to stabilize the oil supply. Therefore, the market urgently needs a technology to improve the oil supply method for testing, addressing issues such as resource waste and insufficient control precision, and meeting the practical needs of collaborative control of multiple servo cylinders. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a distributor for servo hydraulic cylinders, thus resolving the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A distributor for a servo cylinder includes a distributor valve block, characterized in that: the distributor valve block is provided with four channels P, T, X, and L, which correspond to the four oil supply and discharge channels required when the servo cylinder is working.

[0006] Preferably, the P channel is provided with a pressure reduction logic unit, a P port accumulator, a switching logic unit, and a P port filter. The pressure reduction logic unit consists of a pressure valve insert, a solenoid directional valve, and a proportional relief valve. The switching logic unit is used to control the switching of the output P channel.

[0007] Preferably, the X channel is equipped with an X-port accumulator, an X-port filter, and a manual ball valve, and both the pressure reducing logic unit and the X channel include a pressure reducing valve.

[0008] Preferably, the T-channel is equipped with a T-port accumulator.

[0009] Preferably, the L channel is used for oil return from all component leaks.

[0010] Preferably, a base is fixedly connected to the bottom of the distributor valve block.

[0011] Preferably, the P-port filter and the P-port accumulator are both installed on the top of the distributor valve block, the pressure reducing logic unit and the switching logic unit are both installed inside the distributor valve block, and the pressure reducing valve, the X-port accumulator, the T-port accumulator and the manual ball valve are respectively installed on the back of the distributor valve block.

[0012] Preferably, the interfaces for connecting the servo cylinders are distributed on the front of the distributor valve block.

[0013] This invention provides a distributor for servo hydraulic cylinders. Compared with the prior art, it has the following advantages: 1. Achieve centralized oil supply and independent control: A centralized power oil source is used to supply oil to multiple servo cylinders. At the same time, pressure regulation devices in each channel enable real-time independent control of each servo cylinder, avoiding the cost waste caused by the repeated configuration of multiple independent oil source devices.

[0014] 2. Ensure stable oil supply and cleanliness: Accumulators are installed in both P and X channels to absorb pulsations, stabilize output pressure, and reduce pressure fluctuations; filters in each channel can effectively filter hydraulic oil, ensuring oil cleanliness, which is conducive to the normal operation of servo cylinders and other equipment and the smooth progress of testing.

[0015] 3. Compact structure, easy to install and use: The components of the distributor are installed on the distributor valve block in reasonable positions, and all the interfaces for connecting the servo cylinder are distributed on the front of the valve block. The structure is compact and easy to install and operate.

[0016] 4. Reduce the impact of pressure shocks: The T-port accumulator can prevent excessive return oil pressure pulses from causing shocks, and the L-channel recovers leaked oil to the oil source, avoiding interference from pressure shocks to the system and improving the stability and reliability of system operation. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the main body of this utility model; Figure 2 This is a schematic diagram of the right-side structure of the main body of this utility model; Figure 3 This is a top view of the main structure of the present invention; Figure 4 This is a side view of the main body structure of this utility model; Figure 5 This is the principle control diagram of this utility model.

[0018] In the diagram: 1. Pressure reducing logic unit; 2. Switching logic unit; 3. P-port filter; 4. P-port accumulator; 5. Pressure reducing valve; 6. X-port filter; 7. X-port accumulator; 8. T-port accumulator; 9. Manual ball valve; 10. Distributor valve block; 11. Base. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-5 This utility model provides a technical solution: a distributor for a servo cylinder, including a distributor valve block 10, wherein the distributor valve block 10 is provided with four channels P, T, X, and L, which correspond to the four oil supply and discharge channels required when the servo cylinder is working.

[0021] The P channel is equipped with a pressure reduction logic unit 1, a P port accumulator 4, a switch logic unit 2, and a P port filter 3. The pressure reduction logic unit 1 consists of a pressure valve insert, a solenoid directional valve, and a proportional relief valve. The switch logic unit 2 is used to control the switching of the output P channel.

[0022] The P-port accumulator 4 is used to stabilize the P-port output pressure and reduce pressure fluctuations. The switching logic unit 2 is used to open and close this circuit. The P-port filter 3 is used to filter the hydraulic oil output from the P-port to ensure oil cleanliness. The X channel is equipped with an X-port accumulator 7, an X-port filter 6, and a manual ball valve 9. Both the pressure reducing logic unit 1 and the X channel include a pressure reducing valve 5. The X-port filter 6 is used to filter the hydraulic oil output from the X-port to ensure the cleanliness of the oil. The manual ball valve 9 is used to switch the oil supply by borrowing the pressure oil from the P channel when there is no X-port oil supply source.

[0023] The T-channel is equipped with a T-port accumulator 8 to prevent excessive return oil pressure pulses from causing impact.

[0024] The L channel is used for oil return in case of leakage from all components.

[0025] The bottom of the distributor valve block 10 is fixedly connected to a base 11.

[0026] The P-port filter 3 and the P-port accumulator 4 are both installed on the top of the distributor valve block 10. The pressure reducing logic unit 1 and the switching logic unit 2 are both installed inside the distributor valve block 10. The pressure reducing valve 5, the X-port accumulator 7, the T-port accumulator 8 and the manual ball valve 9 are respectively installed on the back of the distributor valve block 10.

[0027] The interfaces for connecting the servo cylinders are located on the front of the distributor valve block 10.

[0028] Working principle: P channel workflow: The pressure hydraulic oil input from the oil source enters the distributor valve block 10 through the P port. First, the pressure is regulated by the pressure reducing logic unit 1, and then the switching logic unit 2 controls the switching of the P channel. After that, the pressure oil in the P channel absorbs the pulsation through the P port accumulator 4 to achieve pressure stabilization. Finally, it is filtered by the P port filter 3 to ensure the cleanliness of the oil before being output. X-channel workflow: The pressurized hydraulic oil input from the oil source enters the distributor valve block 10 through the X port. After the pressure is regulated by the pressure reducing valve 5, the pressure is absorbed and stabilized by the X-port accumulator 7, and then filtered and cleaned by the X-port filter 6 before being output. When there is no oil source from the X port, the pressurized oil from the P channel can be borrowed as the oil supply through the manual ball valve 9. T-channel workflow: The return oil from the servo cylinder absorbs the pressure shock through the T-port accumulator 8, and then returns to the oil source; L-channel function: Leaking oil from all hydraulic components returns to the oil source through the L-channel to avoid interference caused by pressure surges.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A distributor for a servo cylinder, comprising a distributor valve block (10), characterized in that: The distributor valve block (10) is provided with four channels: P, T, X, and L. The four channels P, T, X, and L correspond to the four oil supply and discharge channels required when the servo cylinder is working. The P channel is equipped with a pressure reduction logic unit (1), a P port accumulator (4), a switch logic unit (2), and a P port filter (3). The pressure reduction logic unit (1) consists of a pressure valve insert, a solenoid directional valve, and a proportional relief valve. The switch logic unit (2) is used to control the output P channel switch. The X channel is equipped with an X port accumulator (7), an X port filter (6), and a manual ball valve (9). Both the pressure reducing logic unit (1) and the X channel include a pressure reducing valve (5).

2. A distributor for a servo hydraulic cylinder according to claim 1, characterized in that: The T-channel is equipped with a T-port accumulator (8).

3. A distributor for a servo cylinder according to claim 2, characterized in that: The L channel is used for oil return in case of leakage from all components.

4. A distributor for a servo cylinder according to claim 3, characterized in that: The bottom of the distributor valve block (10) is fixedly connected to a base (11).

5. A distributor for a servo cylinder according to claim 4, characterized in that: The P-port filter (3) and the P-port accumulator (4) are both installed on the top of the distributor valve block (10). The pressure reducing logic unit (1) and the switching logic unit (2) are both installed inside the distributor valve block (10). The pressure reducing valve (5), the X-port accumulator (7), the T-port accumulator (8) and the manual ball valve (9) are respectively installed on the back of the distributor valve block (10).

6. A distributor for a servo cylinder according to claim 5, characterized in that: The interfaces for connecting the servo cylinders are located on the front of the distributor valve block (10).

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