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Low-electromagnetic interference oil cylinder with position feedback

A low electromagnetic, oil cylinder technology, applied in the direction of fluid pressure actuation device, etc., can solve the problems of standardization, generalization and feasibility demonstration of technical solutions, and achieve the effect of centralized control and centralized maintenance, convenient transportation and installation.

Pending Publication Date: 2018-12-07
NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For each type of actuator, it is necessary to design the corresponding interface between the electrical compartment and the oil cylinder. For different interfaces, it is necessary to carry out corresponding electromagnetic compatibility design and testing, which brings great benefits to the standardization, generalization and feasibility demonstration of technical solutions. come difficult

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  • Low-electromagnetic interference oil cylinder with position feedback

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Embodiment Construction

[0020] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention discloses a low-electromagnetic interference oil cylinder with position feedback. The low-electromagnetic interference oil cylinder comprises an oil cylinder sleeve, a piston rod and a piston; the oil cylinder sleeve comprises a rodless chamber, a rod chamber and an electric chamber; each of the rod chamber and the rodless chamber is provided with an oil pipe nozzle; and the electricchamber is provided with a direct-current cable interface and a signal cable interface. The oil cylinder disclosed by the invention can be used as a standard hydraulic part of an active spherical reflector adjusting mechanism in the technical field of radio astronomy; only a required stroke and a required load need to be combined, the size of the oil cylinder sleeve and the size of the piston rodneed to be designed, and a corresponding position sensor needs to be selected, a design scheme can be rapidly formed; and moreover, a favorable technical condition is provided for a hydraulic power part and control equipment from separation of the oil cylinder, convenience is provided for manufacturing, testing, transportation and installation of hydraulic cylinders, and convenience is provided for centralized oil supply, centralized control and centralized maintenance of multi-hydraulic cylinder actions.

Description

technical field [0001] The invention relates to the field of actuators, in particular to a low electromagnetic interference oil cylinder with position feedback. Background technique [0002] With the increase of the aperture of astronomical telescopes, active reflector technology has been paid more and more attention in the field of astronomy. The device or component that deforms the active reflective surface is generally called an actuator. Different from the active reflective surface of optical telescopes, the adjustment stroke required for the deformation of the active reflective surface of radio telescopes is generally larger, and corresponding telescopic mechanisms (generally called actuators) are required. Typically, mechanical electric cylinders are widely used in active reflectors of radio telescopes. In contrast, the application of hydraulic cylinders in the field of radio telescopes has not yet been popularized. Compared with the traditional electric cylinder, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14F15B15/28
CPCF15B15/14F15B15/2861
Inventor 吴明长张海燕赵清甘恒谦
Owner NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
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