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Mechanical platform for three-level screw rod linkage

A lead screw and platform technology, applied in lifting devices, lifting frames, etc., can solve the problems of low lifting accuracy and small lifting height of the device, and achieve the effects of compact structure, high positioning accuracy and motion accuracy, and small volume.

Active Publication Date: 2011-10-05
NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the height of the entire platform lifting device itself is very high due to the existence of masts or stems in the existing platform lifting device, so that the lifting height of the device is very small compared with its own height and the lifting accuracy of these devices is low For the problem, a mechanical platform with three-stage screw linkage was designed

Method used

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  • Mechanical platform for three-level screw rod linkage
  • Mechanical platform for three-level screw rod linkage
  • Mechanical platform for three-level screw rod linkage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) The lifting height of the mechanical platform is 600mm. According to the L / h value range of the mechanical platform: 1.2≤L / h≤2, that is, 300≤h≤500; The length of the lead screw 8 is 330mm, the length of the lead screw sleeve 10 is 310mm, the total thickness of other accessories is 100mm, and the length of the antenna guide shaft is the same as that of the lead screw, such as figure 1 shown;

[0033] (2) The tooth pitch of the three-stage lead screw is 1mm, and they cooperate with each other to form a double-screw motion pair;

[0034] (3) The transmission ratio of the designed mechanical platform is 1:5, and the rising speed of the mechanical platform is 2mm / r;

[0035] (4) The mechanical lifting platform is fixed on the worktable through the installation base plate 1, and the various transmission parts are lubricated with vacuum grease;

[0036] (5) Select the manual drive mode to provide power, and load it on the drive interface 2;

[0037] (6) The direction of...

Embodiment 2

[0043] (1) The lifting height of the mechanical platform is 800mm. According to the L / h value range of the mechanical platform: 1.2≤L / h≤2, that is, 400≤h≤667; The length of the lead screw 8 is 430mm, the length of the lead screw sleeve 10 is 410mm, the total thickness of other accessories is 100mm, and the length of the antenna guide shaft is the same as that of the lead screw, such as figure 1 shown;

[0044] (2) The tooth pitch of the three-stage lead screw is 1.5mm, and they cooperate with each other to form a double-screw movement pair;

[0045] (3) The transmission ratio of the designed mechanical platform is 1:10, and the rising speed of the mechanical platform is 3mm / r;

[0046] (4) The mechanical lifting platform is fixed on the worktable through the installation base plate 1, and the various transmission parts are lubricated with vacuum grease;

[0047] (5) Select the stepper motor drive mode to provide power, and load it on the drive interface 2;

[0048] (6) The ...

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Abstract

The invention relates to a mechanical platform, in particular to a mechanical platform for three-level screw rod linkage, and belongs to the technical field of vacuum machines. The mechanical platform for three-level screw rod linkage of the invention comprises a mounting baseboard, a driving interface, a work platform, two bevel gears, a long-tooth gear, a free gear, a double screw rod having inner and outer treads, a central screw rod, a screw rod sleeve, a bolt, a hexagon bolt, a correcting shaft and two sleeves. The mechanical platform obtains a lifting stroke which is two times of the height per se; a mechanical lifting platform manufactured by using the technique has small volume, compact structure and high positioning accuracy, and can adopt both liquid lubrication and solid lubrication; and the range of application is wide.

Description

technical field [0001] The invention relates to a mechanical platform, in particular to a three-stage lead screw linkage mechanical platform, which belongs to the technical field of vacuum machinery. Background technique [0002] Mechanical lifting platform is a kind of mechanical device commonly used in engineering construction. The commonly used lifting methods include hydraulic method, pneumatic method and mechanical method. The hydraulic method has a large jacking force and good self-locking performance, but its structure is complex and difficult to maintain; although the pneumatic method has good self-locking performance, but the jacking force is small, it can hardly rise with a load, and can only be lifted after rising. bear the load. In addition, the vacuum environment is more and more used in the production and processing of products because of its unique advantages. For example, the welding of components in aerospace products can effectively reduce defects such as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66F7/14
Inventor 何俊张永和陈威刘志栋李立善
Owner NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH