Ball screw pair reliability test stand provided with electro-hydraulic servo loading devices

A ball screw pair and loading device technology, which is applied in the direction of machine gear/transmission mechanism testing, etc., can solve the problems that the reliability test cannot be carried out, and the reliability test device cannot simulate the actual working conditions, so as to achieve real-time monitoring and force testing. And displacement closed-loop control and feedback, the effect of high loading accuracy

Active Publication Date: 2013-02-27
JILIN UNIV
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  • Abstract
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the current ball screw pair reliability test device cannot simulate its actual working conditions, that is, i...

Method used

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  • Ball screw pair reliability test stand provided with electro-hydraulic servo loading devices
  • Ball screw pair reliability test stand provided with electro-hydraulic servo loading devices

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Embodiment Construction

[0026] The present invention is described in detail below in conjunction with accompanying drawing:

[0027] refer to figure 1 , The ball screw reliability test bench with electro-hydraulic servo loading device of the present invention is composed of a ball screw driving part, a load applying part and an automatic control part.

[0028] 1. The drive part of the ball screw

[0029] The driving part of the ball screw pair consists of a servo motor 14, a servo motor base 15, a coupling 16, a ball screw auxiliary screw, a nut, a nut seat 5, 2 bearings, 2 bearing seats, and 2 sets of rolling guide rail pairs , including guide rail, slide block 6, slide seat 13, horizontal iron 1 and workbench 7 to form.

[0030] The cross-section of the slide seat 13 is "concave" type, and the two sides protruding from the slide seat 13 are provided with threaded holes for installing guide rails. Through the through hole fixed on the horizontal iron 1 through the T-type nut.

[0031] The slidin...

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Abstract

The invention relates to a test device applied to the field of ball screw pair reliability, in particular to a ball screw pair reliability test stand provided with electro-hydraulic servo loading devices, which mainly consists of a ball screw pair driving part, a load application part and an automatic control part, wherein the ball screw pair driving part consists of a servo motor (14), a ball screw pair and a working platform (7); the load application part comprises the two sets of electro-hydraulic servo loading devices which are respectively arranged on the left end surface and the right end surface of the working platform (7); and the automatic control part comprises an upper industrial personal computer, a lower programmable logic controller (PLC), a servo driver, an analog/ digital (A/ D) card, an electromagnetic directional valve, a signal amplifier, a pull pressure sensor and a displacement sensor. The ball screw pair reliability test stand can be used for realizing dynamic or static loading for different types ball screw pairs, and carrying out reliability test on the ball screw pairs.

Description

technical field [0001] The invention relates to a test device applied in the reliability field of a ball screw pair, in particular, the invention relates to a test bench capable of implementing dynamic and static loading on a ball screw pair and performing reliability tests. Background technique [0002] The rolling functional parts industry is an emerging industry in my country's machinery industry. In recent years, with the development of a series of digital manufacturing equipment such as precision machine tools and CNC machine tools, rolling functional parts are characterized by high precision, zero clearance, high rigidity, large allowable load, Features such as low noise and low energy consumption have been developed rapidly. However, the statistical results of the past five years show that the market share of domestic rolling functional parts has been declining year by year, while the import volume has been increasing for many years. The main reason is that there is a...

Claims

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Application Information

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IPC IPC(8): G01M13/02
Inventor 李国发何佳龙杨兆军焦大蒙段炜蒋敬仁
Owner JILIN UNIV
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