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a servo cylinder

A technology of servo cylinder and cylinder barrel, which is applied in the field of servo cylinder and can solve problems such as complicated installation and debugging process

Active Publication Date: 2017-01-04
CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • a servo cylinder
  • a servo cylinder
  • a servo cylinder

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Embodiment Construction

[0017] The technical scheme of the present invention will be described in further detail below in conjunction with accompanying drawing and embodiment:

[0018] 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 relates to a servo oil cylinder, which replaces the grating scale with a rolling grating, adopts the rolling grating as the external displacement sensor of the servo oil cylinder, and uses an adjustment device to make the friction wheel of the rolling grating keep tight with a certain positive pressure It is attached to the piston rod of the oil cylinder to ensure that there is no relative sliding during the rolling process, which solves the problem of the traditional grating ruler well, and reduces the requirements of the grating on the installation reference accuracy and the smooth operation of the oil cylinder itself. Large size, small space size, convenient installation and maintenance, and reliable 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 Patents(China)
IPC IPC(8): F15B15/14
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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