Automatically adjustable damping force hydraulic shock absorber

Abstract

The invention discloses a damping force automatic regulation type oil pressure buffer, comprising a cylinder block component, a buffer component arranged in the cylinder block component, a pressure storage component and liquid contained in the cylinder block component, wherein a regulating cavity used for containing a regulating device is arranged in a piston rod of the buffer component, the regulating device comprises a flow velocity regulating valve and an elastic part, a blocking piece is arranged between the piston rod and a piston, the elastic part is butted between a flow regulating valve and the blocking piece, a space in which the flow velocity regulating valve can retract is formed in the blocking piece, a main runner communicated with the regulating cavity is formed in the piston rod, the flow regulating valve is communicated with a cylinder block and the main runner, the flow regulating valve can be clamped and connected with and seal the main runner, and the main runner is communicated to the pressure storage component. The damping force automatic regulation type oil pressure buffer realizes automatic regulation of corresponding overflow rates for different impact forces, and a stable damping effect is achieved in an energy absorbing process.

Description

Technical field [0001] The invention belongs to the technical field of buffers, and in particular relates to an oil pressure buffer with automatic damping force adjustment. Background technique [0002] The hydraulic buffer converts the kinetic energy generated by the moving object into heat energy and releases it in the atmosphere during the automatic mechanical operation, and at the same time stops the object smoothly, quietly and effectively at the end of the action. In the traditional pressure-accumulating cotton buffer, when the impact head is impacted by external force, it will drive the piston rod to push the piston to squeeze the hydraulic oil in the inner tube, and the hydraulic oil will flow out from the multiple oil discharge holes designed on the inner tube after being compressed. , And flow into the rubber pressure accumulating cotton at the same time to compress the rubber pressure accumulating cotton to create pressure accumulating space. In the process of hydraul...

AI Technical Summary

Problems solved by technology

During the process of the hydraulic oil flowing out of the oil discharge holes on the inner tube in sequence, the buffer produces a curved damping effect. When the piston passes through each oil discharge hole, the damping flow is reduced once, and the formed absorption effect will be slightly stuck once until After forming the last oil discharge hole, the flow rate of the flow is fixed and gradually reduced, which cannot be applied to changing impact forces of different intensities

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