Double-stage sleeve-type automatic jacking device

A jacking device, a sleeve-type technology, applied in the direction of the lifting device, etc., can solve the problems of weak synchronization, low degree of automation, poor controllability of lifting speed, etc., and achieve the effect of enhanced lateral force resistance and small size

Inactive Publication Date: 2019-08-09
BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This test method has the limitations of poor controllability of lifting speed, poor controllability of jacking position, small proportion of jacking height, weak synchronization, and low degree of automation.

Method used

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  • Double-stage sleeve-type automatic jacking device
  • Double-stage sleeve-type automatic jacking device
  • Double-stage sleeve-type automatic jacking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] like figure 1 , 2 , 3, 4, 5, and 6, this embodiment discloses a two-stage sleeve-type automatic jacking device mainly composed of a primary screw 1, a secondary screw 2, a rotating cylinder 3, and a primary guide cylinder 4 , Secondary guide cylinder 5, outer cylinder body 6, servo power unit 7 and diffuse reflection laser photoelectric switch 8.

[0034] The primary lead screw 1 is an ordinary trapezoidal lead screw, the upper end of which is connected with a force sensor, and the force sensor is finally connected with the fuselage.

[0035] The secondary lead screw 2 is a sleeve-type lead screw, the inner wall and the outer wall are threaded, the inner wall is threaded with the primary lead screw 1, and the outer wall is threaded with the rotating cylinder 3.

[0036] The bottom of the rotating cylinder 3 is equipped with a worm gear, and the torque and speed are applied through the servo motor and the reducer.

[0037] The first-stage guide cylinder 4, the upper e...

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PUM

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Abstract

The invention discloses a double-stage sleeve-type automatic jacking device, and belongs to the field of structural design and application of aircraft weighing equipment. The device is mainly composedof a first-level lead screw, asecond-level lead screw, a rotating cylinder, a first-level guide cylinder, a second-level guide cylinder, an external cylinder, a servo power device and a diffuse reflected laser photoelectric switch, wherein the first-level lead screw is a common trapezoidal lead screw; the second-level lead screw is a sleeve-type lead screw; worm wheels are installed at the bottomof the rotating cylinder; a first-level guide cylinder upper end cover is fixedly connected with the first-level lead screw and drives the first-level guide cylinder to rise while the first lead screw rises; a first piston block is installed at the bottom of the first-level guide cylinder and drives the second-level guide cylinder to rise when the first-level guide cylinder rises to the highest level; and the inner wall of the second-level guide cylinder is slidably connected with the first-level guide cylinder through the first-level piston block, and the outer wall of the second-level guidecylinder is slidably connected with the external cylinder through a second-level piston block. By means of the double-stage sleeve-type automatic jacking device, the anti-lateral force capability ofthe jacking device can be enhanced, so that the requirements of automation, high precision, safety and high efficiency of an aircraft in attitude adjustment are met.

Description

technical field [0001] The invention belongs to the field of structural design and application of aircraft weighing equipment, and relates to a two-stage sleeve-type automatic jacking device, in particular to a two-stage jacking device whose jacking height can reach twice its own height under limited space conditions. Sleeve type automatic jacking device. Background technique [0002] In order to meet the needs of aircraft development and flight, and to realize the center of mass test when the aircraft is in different attitudes, the current main engine manufacturers mainly use hydraulic jacks to lift up. This test method has the limitations of poor controllability of lifting speed, poor controllability of jacking position, small proportion of jacking height, weak synchronization, and low degree of automation. The present invention designs a screw type jacking device that can lift up to twice the height of the device in a limited space. [0003] Invention content: [0004]...

Claims

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Application Information

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IPC IPC(8): B66F3/08B66F3/44
CPCB66F3/08B66F3/44
Inventor 王畅赵印明陈柯行谭诗野
Owner BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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