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Servo mechanism oil level potentiometer nut screwing-down device and screwing-down and disassembling method

A technology of servo mechanism and potentiometer, applied in the direction of wrenches, manufacturing tools, wrenches, etc., can solve the problems of high processing cost, extremely strict quality requirements, and impact on delivery of aerospace products, and achieve low cost, simple structure, and assembly reliability. high effect

Active Publication Date: 2017-02-01
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The processing cost of aerospace products is high, and the quality requirements are extremely strict. Any quality problems will easily lead to product scrapping and affect delivery. Therefore, it is urgent to solve the above assembly status

Method used

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  • Servo mechanism oil level potentiometer nut screwing-down device and screwing-down and disassembling method
  • Servo mechanism oil level potentiometer nut screwing-down device and screwing-down and disassembling method
  • Servo mechanism oil level potentiometer nut screwing-down device and screwing-down and disassembling method

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Embodiment Construction

[0035] The present invention has designed a set of device that the oil level potentiometer nut is installed aiming at the above problems. This set of devices can cleverly avoid and protect the resistance of the oil level potentiometer, and at the same time can quickly tighten the two nuts and apply the required torque. At the same time, this set of devices can be expanded and applied to other servo mechanisms with similar structures and assembly requirements.

[0036] Such as figure 1 and figure 2 As shown, the present invention provides a device for tightening and dismounting the oil level potentiometer nut of a servo mechanism, which mainly includes a fixing pin 2, a protective cover 3 and a tightening tool 4;

[0037] The protective cover 3 is a structural member with a U-shaped cross section, such as image 3 shown. The protective sleeve 3 is provided with two stepped inner holes in the axial direction, the first smaller inner hole is a guide hole, which cooperates wi...

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Abstract

The invention provides a servo mechanism oil level potentiometer nut screwing-down device and a screwing-down and disassembling method. The nut screwing-down device comprises device fixing pins (2), a protecting sleeve (3) and a screwing-down tool (4). The protecting sleeve (3) is a structural member with the center provided with step inner holes and the section being in a U shape, wherein the inner hole with the small inner diameter is matched with the screwing-down tool (4) and plays a role in guidance, and the other inner hole is matched with a head shell of a servo mechanism and plays a role in location. The screwing-down tool (4) penetrates the inner hole with the guidance function, one end of the screwing-down tool (4) is matched with the nut, and the other end of the screwing-down tool (4) is used for screwing down the nut. Threaded holes are machined in the U-shaped vertical face of the structural member. A thread is arranged at one end of each fixing pin (2), a polish rod is arranged at the other end of each fixing pin (2), the thread ends are screwed down into the thread holes of the protecting sleeve (3), and the polish rod ends are inserted into head shell holes of the corresponding positions of the servo mechanism. Two small protrusions are arranged at one end of the screwing-down tool (4) and matched with a groove of the oil level potentiometer nut, and the other end of the screwing-down tool (4) is a screwing-down operation end. A cylinder through hole is formed in the screwing-down tool (4) in the axial direction and used for penetrating an oil level potentiometer resistor.

Description

technical field [0001] The invention is mainly used for installing and dismounting the nut of the oil surface potentiometer of the servo mechanism, so as to avoid damage to its slender resistance. It can be extended to other oil level potentiometers with similar structure and assembly requirements. The invention can safely and quickly tighten two nuts and apply required torque. Background technique [0002] The oil level potentiometer of the secondary servo mechanism of a launch vehicle and the tertiary servo mechanism of a certain launch vehicle is composed of a brush holder, a resistor, a connecting rod, etc., and the resistor is coated with a uniform metal coating on the skeleton. The quality of the metal coating determines the accuracy and stability of the output of the oil level potentiometer, so the oil level potentiometer assembly must avoid damage to the metal coating during assembly. The oil level potentiometer is fixed to the housing of the servo mechanism throug...

Claims

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Application Information

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IPC IPC(8): B25B13/50
CPCB25B13/50
Inventor 马俊杰王巍赵志强王聪李杨
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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