Signal sending device for mechanic-hydraulic servo mechanism

A technology of servo mechanism and mechanical fluid, which is applied in the direction of servo motor, fluid pressure actuator, mechanical equipment, etc., can solve the problems of servo mechanism damage, lack of signal storage function, etc., achieve high reliability, improve continuous control ability, Good mobility

Active Publication Date: 2012-05-23
BEIJING INST OF SPACE LAUNCH TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently commonly used servo mechanisms are organic hydraulic servo mechanisms and electro-hydraulic servo mechanisms. Regardless of the type of servo mechanism, the most basic components include actuators, driving parts, feedback parts, and control valves. However, most of the current electro-hydraulic servo mechanisms The signaling device of the actuator does not have a signal storage function, and when the input signal continues to drive the control spool and the feedback signal lags behind, it is easy to cause damage to the servo mechanism

Method used

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  • Signal sending device for mechanic-hydraulic servo mechanism
  • Signal sending device for mechanic-hydraulic servo mechanism
  • Signal sending device for mechanic-hydraulic servo mechanism

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Embodiment Construction

[0033] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the appended claims of the present invention.

[0034] refer to figure 1 The signaling device of the present invention is used in a structural diagram of a servomechanism, as shown in the figure, the servomechanism 100 includes a signaling device 110 (the signaling device is actuated by an actuator 10), a control valve 20, a driver ( It includes a first driving member 30 , a second driving member 40 driven by the first driving member 30 ), and a feedback member 50 . The actuator 10 includes an actuating shaft 120 connected to the spool 21 of the control valve 20, the actuating shaft 120 is connected to the signaling device 110, the signaling device 110 is provided with a cam groove ...

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Abstract

The invention discloses a signal sending mechanism for a mechanic-hydraulic servo mechanism. The servo mechanism comprises a driving piece, a feedback piece and a control valve. The signal sending device is actuated by an actuator and connected with the control valve. A cam slot is arranged on the signal sending device, the actuator shaft of the actuator is connected to an extruding pin coupled with the cam slot, and two horizontal sections and an inclined section between the two horizontal sections are arranged on the cam slot, wherein the length of each horizontal section is larger than or equal to the stroke of the actuator, and the distance between the two horizontal sections is smaller than or equal to the stroke of a valve element of the control valve. The extruding pin performs a reciprocating motion in the two horizontal section and the tilting section located between the two horizontal section, in order to control the start and stop of the control valve. The signal sending mechanism has the function of storing signals, can better protect the servo mechanism and feed back action results of the driving piece, improve the persistent control capacity of the servo mechanism and achieve high reliability and good maneuverability.

Description

technical field [0001] The invention relates to a signaling device, in particular to a signaling device for a machine-hydraulic servomechanism. Background technique [0002] The application of servo mechanism is very extensive. From the initial use in ship autopilot, artillery control and director, it was gradually extended to many fields, especially automatic lathes, antenna position control, missile and spacecraft guidance, etc. The main purpose of using the servo mechanism is to achieve the following purposes: ① Control the high-power load with a low-power command signal. Gun control and rudder control are typical examples. ②In the absence of mechanical connection, the input shaft controls the output shaft located far away to realize long-distance synchronous transmission. ③ Make the output mechanical displacement accurately track the electrical signal, such as recording and indicating instruments. Currently commonly used servo mechanisms are organic hydraulic servo me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B9/08
Inventor 蒙小苏周燕闫红宾陈建有张衍倬贺建华
Owner BEIJING INST OF SPACE LAUNCH TECH
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