Hydraulic cylinder

A technology of hydraulic cylinders and cylinder barrels is applied in the field of hydraulic cylinders, which can solve the problems of reducing the strength of hydraulic cylinders, unable to meet the limit of the shape and size of multi-stage hydraulic cylinders, and being too large in size.
CN104514767AActive Publication Date: 2015-04-15HUNAN TELI HYDRAULIC +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HUNAN TELI HYDRAULIC
Publication Date
2015-04-15

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Abstract

The invention discloses a hydraulic cylinder, including a cylinder barrel (1), wherein one end of the cylinder barrel (1) is connected with a cylinder bottom (2) while the other end forms a cylinder rod extending end, a first sealing member (5) is arranged on the inner peripheral surface of the cylinder rod extending end, the cylinder barrel (1) and the cylinder bottom (2) are fixed with each other by a positioning member positioned in the cylinder barrel (1) and simultaneously stopping the cylinder barrel (1) and the cylinder bottom (2). The hydraulic cylinder can simultaneously meet the requirements on strength, assembly and dimensional limit.
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Description

technical field

[0001] The invention relates to the field of hydraulic components, in particular to a hydraulic cylinder. Background technique

[0002] Hydraulic cylinders have many requirements in terms of their assembly, size and strength. Taking multi-stage hydraulic cylinders as an example, the current design of multi-stage hydraulic cylinders is limited by the external dimensions, and the difference between the cylinder diameter and the secondary rod diameter is small. figure 1 It shows a multi-stage hydraulic cylinder in the prior art, the cylinder bottom 2 and the cylinder barrel 1 are connected by welding, and a seal is provided between the secondary cylinder rod 4 and the cylinder rod extension end of the cylinder barrel 1 The guide sleeve 3 is sealed, and the existence of the guide sleeve 3 makes the wall thickness of the cylinder rod extension end of the cylinder barrel 1 very thin, which reduces the strength of the hydraulic cylinder.

[0003] figure 2 It sho...

Claims

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