Integrated servo cylinder

A servo oil cylinder and cylinder block technology, applied in the field of hydraulic oil cylinders, can solve the problems of large volume, high manufacturing cost and uncompact mechanism of the oil cylinder, and achieve the effects of small size, low manufacturing cost and high position measurement accuracy.

Active Publication Date: 2012-07-11
WUXI YILIDA MACHINERY
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  • Abstract
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AI Technical Summary

Problems solved by technology

In the field of automatic control, the mechanical arm needs to reach a certain position, which requires measuring the precise position of the oil cylinder. Usually, a sensor is added to the external piston head of the oil cylinder to measure. This structure will cause the oil cylinder to be bulky. , the measurement is not accurate, and the mechanism is not compact, the installation is inconvenient, and the manufacturing cost is high

Method used

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Embodiment Construction

[0013] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0014] Such as figure 1 , 2 As shown, the present invention comprises cylinder body 1, and one end of cylinder body 1 is fixedly installed end cover 4, and cylinder body 1 and end cover 4 are respectively provided with oil inlet and outlet holes 7, and cylinder body 1 is provided with piston 3, and piston 3 and cylinder The inner wall of the body 1 is hydraulically sealed, the piston 3 is connected to the piston rod 2, and one end of the piston rod 2 extends out of the cylinder body 1, and a sealing ring is arranged between the piston rod 2 and the cylinder body 1 and between the cylinder body 1 and the end cover 4. The piston 3 and the piston rod 2 are provided with a cavity 5 along the length direction of the piston rod 2, the displacement sensor 6 is arranged in the cavity 5, one end of the displacement sensor 6 is c...

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Abstract

The invention relates to an integrated servo cylinder which is characterized in that a cavity along the length direction of the piston rod is arranged on a piston and a piston rod, a displacement sensor is arranged in the cavity, one end of the displacement sensor is connected with the inner lateral surface of an end cover, and the other end of the displacement sensor is connected with the upper end of the piston rod. According to the integrated servo cylinder, the displacement sensor is integrated in the oil cylinder, so that the integrated servo cylinder is small in volume, compact in structure, high in position measurement accuracy, capable of being integrated into a hydraulic control system in a modularized way, low in manufacturing cost, long in service life and convenient to install and use. In addition, as the internal parts of the displacement sensor adopt insulating oil which is isolated from the hydraulic oil, and the pressure is compensated by a compensating leather bag, the displacement sensor is stable in work and long in service life. The displacement sensor is arranged in the cavity on the piston and the piston rod, so that the working pushing force of the cylinder is not affected at all.

Description

technical field [0001] The invention relates to a hydraulic oil cylinder, in particular to an integrated servo oil cylinder. Background technique [0002] Hydraulic cylinders are usually only used as hydraulic loads. In systems that require position feedback, hydraulic cylinders are designed and used separately from position feedback devices. In the field of automatic control, the mechanical arm needs to reach a certain position, which requires measuring the precise position of the oil cylinder. Usually, a sensor is added to the external piston head of the oil cylinder to measure. This structure will cause the oil cylinder to be bulky. , the measurement is inaccurate, the mechanism is not compact, the installation is inconvenient, and the manufacturing cost is high. Contents of the invention [0003] In view of the above problems, the applicant has made researches and improvements to provide an integrated servo oil cylinder, which is small in size, compact in structure, h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14F15B15/28
Inventor 陈江峰
Owner WUXI YILIDA MACHINERY
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