Oil cylinder tail end buffering device

Abstract

The invention discloses an oil cylinder tail end buffering device which comprises a right end cover (1), a cylinder barrel (2), a one-way valve (3), a piston buffering cone (4), a piston (5), a pistonrod (6) and an overflow valve (9). By means of the oil cylinder tail end buffering device, due to the innovative structural design, the overflow valve is arranged in the right end cover, the one-wayvalve is arranged in the piston buffering cone, on one hand, consumption and absorption of impact energy in the oil cylinder tail end buffering process are strengthened, on the other hand, the peak value of the impact loads in the oil cylinder tail end buffering process is further limited, and safety in the oil cylinder work process is sufficiently ensured. Meanwhile, the initial stage speed of the reverse motion of the piston is ensured, and the work efficiency of the oil cylinder is improved. The oil cylinder tail end buffering device can be applied to an oil cylinder and can also be appliedto a hydraulic damper and a hydraulic buffer, and a wide application prospect is achieved.

Description

technical field [0001] The invention relates to a buffer device at the end of an oil cylinder, which belongs to the fields of machinery, hydraulic pressure and buffering. Background technique [0002] At present, the hydraulic transmission system has been widely used in various types of mechanical equipment. The hydraulic cylinder, which is usually used as the actuator of the hydraulic system, needs to be equipped with a buffer device at the end of the cylinder to prevent the piston from impacting the end cover of the cylinder and causing damage to the cylinder. The buffer device at the end of the cylinder is usually set up as a throttling damping structure, which consumes and absorbs the impact energy of the piston through throttling damping, and the magnitude of the impact load formed by the throttling damping during the buffering process is related to the movement speed of the piston. If the piston If the movement speed is large, the peak value of the impact load formed d...

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Problems solved by technology

[0002] At present, the hydraulic transmission system has been widely used in various types of mechanical equipment. The hydraulic cylinder, which is usually used as the actuator of the hydraulic system, needs to be equipped with a buffer device at the end of the cylinder to prevent the piston from impacting the end cover of the cylinder and causing damage to the cylinder.

The buffer device at the end of the cylinder is usually set up as a throttling damping structure, which consumes and absorbs the impact energy of the piston through throttling damping, and the magnitude of the impact load formed by the throttling damping during the buffering process is related to the movement speed of the piston. If the piston If the movement speed is large, the peak value of the impact load formed during the buffering process at the end of the cylinder will become very large, which will also cause damage to the cylinder

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