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Servo-cylinder

A technology of servo oil cylinder and cylinder barrel, applied in the field of servo oil cylinder, can solve the problems of complicated installation and debugging process, etc.

Active Publication Date: 2015-03-04
CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The high installation accuracy of the grating ruler determines that the stability of the cylinder operation is also high, and the entire installation and debugging process is complicated

Method used

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Experimental program
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Embodiment Construction

[0016] The technical scheme of the present invention will be described in further detail below in conjunction with accompanying drawing and embodiment:

[0017] See attached Figure 1~6 As shown, this kind of servo cylinder, the servo cylinder 14 is a double-acting piston type, and the structural parts of the servo cylinder 14 include a round nut 1, a seal 3, a front end cover 4, a piston rod 5, a cylinder barrel 6, a flange 7, a piston 8. Buffer mechanism 9, integrated block 11, rear end cover 13 and upper chamber oil pipe 12, cylinder 6 is made of high-quality thick-walled seamless steel pipe, and the interior is rolled to ensure a good finish. The front end of cylinder 6 is welded by bolts The method is fixed with the front end cover 4, the rear part of the cylinder 6 is fixedly connected with the rear end cover 13 by welding, the rear part of the inner cavity of the cylinder 6 is provided with a buffer mechanism 9 for the smooth stop of the piston 8 when it returns, and th...

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Abstract

The invention discloses a servo-cylinder. According to the servo-cylinder, a grating scale is replaced b y a rolling grating; the rolling grating serves as an external displacement sensor for the servo-cylinder; a friction wheel of the rolling grating can be always tightly attached to a piston rod of the cylinder at certain positive pressure through a regulating device, relative sliding in the rolling process is avoided, and the problems of the traditional grating scale are well solved; moreover, requirements of the grating on installation reference accuracy, working stability of the cylinder and the like are reduced; the servo-cylinder is wide in range, small in spatial size, convenient to install and maintain and reliable in accuracy.

Description

technical field [0001] The invention is a servo oil cylinder, which belongs to the field of mechanical engineering. Background technique [0002] The traditional servo cylinder control valve mostly adopts the form of servo valve or proportional valve, and the displacement sensor mostly adopts built-in or external grating scale. The grating scale requires high installation accuracy of the host and requires a large installation space. The high installation accuracy of the grating ruler determines that the stability of the oil cylinder operation is also high, and the entire installation and debugging process is complicated. The grating ruler is limited by its own structure, and the measuring range should not be too large. [0003] The rolling grating is composed of high-resolution encoder, precision shafting, friction wheel and adjustment device. The friction wheel supported on the precision bearing converts the angular displacement signal output by the encoder into linear di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14
CPCF15B15/1447
Inventor 路伟光姜新生尚君星赵祉江赵宪芳马玉龙魏鹏
Owner CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC
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