Connecting rod-ball valve type hydraulic damping device for vehicle

Abstract

The invention discloses a connecting rod-ball valve type hydraulic damping device for a vehicle, which belongs to the technical field of hydraulic damping devices for vehicles. The technical problem to be solved is to provide the connecting rod-ball valve type hydraulic damping device in which a throttle valve is arranged on a connecting rod. The technical scheme for solving the technical problem is that: the device comprises an outer cylinder, an inner cylinder, a piston connecting rod, an end cover of the outer cylinder and the throttle valve, wherein a left end of the outer cylinder is closed, while a right end is provided with the end cover of the outer cylinder which can be detached from the outer cylinder; a left end of the inner cylinder is open, the inner cylinder is arranged in the outer cylinder, a right end of the inner cylinder is arranged on the end cover of the outer cylinder, and a damping fluid is contained between the outer cylinder and the inner cylinder; the throttle valve comprises a valve body, a piston ring, a ball valve core, a spring and a spring seat, wherein the outside diameter of the valve body is slightly less than the inside diameter of the inner cylinder, the valve body is provided with a two-step hole, a left section hole of the two-step hole is a main oil hole, while a right section hole is the ball valve core hole; and the ball valve core, the spring and the spring seat are arranged in the ball valve core hole. The connecting rod-ball valve hydraulic damping device for the vehicle is used for the damping of the vehicle. The device has the advantages of avoiding the blockage fault of the main oil hole caused by the deformation of a valve plate, improving the working reliability of the damping device, and prolonging the service life of the damping device.

Description

technical field [0001] The invention belongs to the technical field of vehicle hydraulic damping devices. Background technique [0002] The vehicle hydraulic damping device in the prior art includes a valve plate throttle valve and a piston. There are main oil hole, valve plate and micro hole in the valve plate throttle valve, and the valve plate is made of fine processing. When the piston of the hydraulic damping device moves toward the throttle valve, the valve plate closes the main oil hole under the action of fluid pressure, and the fluid cannot flow through the main oil hole, but flows through the micropores, thereby restricting the flow of liquid and reducing the pressure. The movement speed of the small piston acts as a shock absorber. The disadvantages of the prior art are that the structure is relatively complicated, the valve plate needs to be finely processed, the production cost is high, the valve plate is easily deformed during operation, and the main oil hole...

AI Technical Summary

Problems solved by technology

The shortcomings of the existing technology are that the structure is relatively complicated, the valve plate needs to be finely processed, the production cost is high, the valve plate is easily deformed during operation, and the main oil hole is blocked, resulting in unstable operation and affecting the vibration reduction effect

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