a hydraulic system

Abstract

A hydraulic control system, comprising: an oil tank, an oil pump, a filter, a relief valve, a first solenoid valve, a second solenoid valve, a third solenoid valve, a fourth solenoid valve, a check valve, a first hydraulic cylinder, a second solenoid valve The hydraulic cylinder and the third hydraulic cylinder; the oil tank, the filter, the oil pump and the one-way valve are connected in sequence to form an oil delivery circuit; the downstream of the one-way valve is provided with a first oil circuit and a second oil circuit, and the first oil circuit is provided with a first electromagnetic The second oil circuit is provided with a second solenoid valve, the first oil circuit is connected to one end of the first to third hydraulic cylinders, the second oil circuit is connected to the other end of the first to third hydraulic cylinders; the first oil circuit is connected to the third hydraulic cylinder. The first oil return circuit, the second oil circuit is connected to the second oil return circuit.

Description

technical field [0001] The invention relates to the application field of a flexible mechanism in a hydraulic system, in particular to a hydraulic control system. Background technique [0002] Poisson's ratio is a basic parameter of structural deformation. In common materials, Poisson's ratio is generally positive, and the range is mostly between 0-0.5. When a common material is stretched in one direction, its cross section shrinks with the stretch, while the cross section of a material with a negative Poisson’s ratio (auxetic material) expands with stretch, such as single crystal sulfide ore, Polytetrafluoroethylene (PTFE) and silica with tetrahedra. [0003] Inspired by the physical properties of the above negative Poisson's ratio materials, researchers at home and abroad have designed many different negative Poisson's ratio structures. When the negative Poisson's ratio structure is subjected to pressure in the axial direction, it will shrink in the axial and radial direc...

AI Technical Summary

Problems solved by technology

[0005] 1. In the flexible mechanism of the prior art, the cells are all connections between complete individuals, but the functional differentiation between cells of different shapes is not considered, and if different cells are connected, the connection between different structural forms Difficulty connecting

[0006] 2. The connection between the cells in the prior art is just a connection, but the connection is not refined, and the connection stiffness and support cannot be guaranteed.

[0007] 3. The ribs in the prior art only serve to increase the strength, but do not consider the direction of force and the bending resistance at all.

[0008] 4. When the flexible mechanism in the prior art is applied, it must be connected to the device with the help of a connecting mechanism, and the adaptability and detachability are not considered.

[0009] 5. The flexible structure of the hydraulic cylinder in the prior art is often just a cushion. If it is thin, it will be easily damaged and the effect will not be good. If it is thick, it will lose space utilization.

[0010] 6. When the flexible mechanism in the prior art is directly used for buffering, there is no additional guiding mechanism, and unexpected deformation of the flexible mechanism in the direction of the offset force is prone to occur

[0011] 7. The cells of the flexible mechanism in the prior art only use the bending deformation to provide the buffer force, and this buffer is only provided by the deformation force in the linear direction, and the effect is only provided by a single force

[0012] 8. Most of the cells of the flexible mechanism in the prior art are composed of several identical cells through linear superposition, so it is difficult to achieve greater buffer support

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