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an actuator

A technology of actuator and actuating cylinder, applied in the direction of fluid pressure actuating device, etc., can solve the problem of inability to provide power, and achieve the effects of saving space, increasing pneumatic driving capacity, and increasing power output.

Inactive Publication Date: 2016-06-29
MILITARY EQUIP RES INST AIR FORCE PLA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the existing technology cannot provide enough power, the embodiment of the present invention provides an actuator

Method used

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] like figure 1 As shown, an actuator provided by the embodiment of the present invention includes an actuator 1, a driving device 2, a lead screw 3, a piston 4 and a hollow piston rod 5, and the hollow piston rod 5 and the lead screw 3 are both Sealed with the actuator cylinder 1, the hollow piston rod 5 is provided with a communication hole 51, and the actuator cylinder 1 is provided with an air intake hole 13 communicating with the outside world. The cylinder 1 is filled with gas 7 , the gas 7 enters the hollow piston rod 5 from the communication hole 51 , and the gas 7 pushes the hollow piston rod 5 to displace in the axial direction.

[0020] Among them, the embodiments of the present invention increase the pneumatic drive c...

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Abstract

The invention discloses an actuator, and the actuator comprises an actuating cylinder, a driving device, a screw rod, a piston and a hollow piston rod, wherein the hollow piston and the screw rod are sealed with the actuating cylinder, respectively; communication holes are arranged on the hollow piston rod; air inlets, communicated with the outside, are arranged on the actuating cylinder; when the actuator is operated, the actuating cylinder is filled with gas via the air inlets; gas accesses into the hollow piston rod via the communication holes, in order to drive the axial displacement of the hollow piston rod. Based on the original electric actuator, the actuator is characterized in that the actuating cylinder is provided with the air inlets and the hollow piston rod is provided with the communication holes; when the actuator is operated, gas is filled via the air inlets, accesses into the hollow piston rod via the communication holes, and generates the pressure in the hollow piston rod, so that the hollow piston rod can be axially displaced. The actuator is added with pneumatic drive capability, power output of the single actuator is greatly increased by recombination action of gas pressure and electric drive, and space is saved. The actuator has the advantages of simple structure, durability and easy maintenance.

Description

technical field [0001] The invention relates to the field of electromechanical motion control, in particular to an actuator. Background technique [0002] Actuators, also known as exciters, are used for dynamic tests and are output devices for active vibration control in dynamic tests. With the development of active vibration control technology, the requirements for actuators are getting higher and higher. [0003] At present, common actuators are generally electric actuators controlled by electricity, which include an actuator, a driving device, a screw, a piston, and a hollow piston rod. The actuator is cylindrical, and the piston is arranged inside the actuator. , and the piston is not sealed with the actuator cylinder, one side of the piston is connected to the hollow piston rod, which is used to output power, the other side of the piston is threaded with the lead screw, and the piston can move along the axial direction of the lead screw under the thread fit. The displa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/08
Inventor 韩彦东西光旭
Owner MILITARY EQUIP RES INST AIR FORCE PLA