Air cylinder

Abstract

The invention belongs to the field of air pressure driving and particularly relates to an air cylinder. The air cylinder comprises a cylinder body, a main cavity, a piston and a piston rod, wherein air inlets and air outlets are respectively formed in two ends of the cylinder body; an anti-collision structure is arranged on the air cylinder and comprises a buffer rod; the buffer rod is arranged on the piston; an accommodation hole corresponding to the buffer rod is formed in the cylinder body; and a first sealing ring for sealing a clearance between the buffer rod and the accommodation hole is arranged at the accommodation hole. The anti-collision structure disclosed by the invention has a flexible buffer function without generating hard impact, so that the air cylinder is small in vibration and high in stability; the air cylinder can be used for conveying vibration-sensitive articles; the application range is widened; and in addition, the mechanical damage to the air cylinder is reduced and the wear and the deformation are reduced, and thus the service life of the air cylinder is prolonged.

Description

technical field [0001] The invention belongs to the field of pneumatic transmission, and more specifically relates to a cylinder. Background technique [0002] In the prior art, the cylinder uses high-pressure gas or high-pressure liquid as the power source to perform reciprocating motion to realize the transmission function, such as figure 1 As shown, the cylinder generally includes a cylinder body 1, a main cavity body 2, a piston 3 and a piston rod 4, and the two ends of the cylinder body 1 are also provided with inlet and outlet ports 5, and the piston will hit the front and rear covers on the cylinder body during the working process of the cylinder. , The mechanical damage to the cylinder itself is greater during the piston impact stop process, which greatly increases wear and deformation, resulting in shortened life; in addition, the impact will cause vibration. When the cylinder is used to transport items, it may have adverse effects on vibration-sensitive items. The...

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Problems solved by technology

[0002] In the prior art, the cylinder uses high-pressure gas or high-pressure liquid as the power source to perform reciprocating motion to realize the transmission function, such as figure 1 As shown, the cylinder generally includes a cylinder body 1, a main cavity body 2, a piston 3 and a piston rod 4, and the two ends of the cylinder body 1 are also provided with inlet and outlet ports 5, and the piston will hit the front and rear covers on the cylinder body during the working process of the cylinder. , The mechanical damage to the cylinder itself is greater during the piston impact stop process, which greatly increases wear and deformation, resulting in shortened life; in addition, the impact will cause vibration. When the cylinder is used to transport items, it may have adverse effects on vibration-sensitive items. limited range of applications

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