Double-oil cylinder loaded ball screw assembly test bed

A technology of ball screw pair and ball screw, which is applied in the field of ball screw pair test bench, can solve the problem that the ball screw pair test bench cannot provide heavy-duty experimental conditions, etc., and achieve a wide range of load adjustment and system response speed Fast and wide-ranging effect

Inactive Publication Date: 2010-07-21
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

At present, although the domestic ball screw pair performance tests are relatively comprehensive, the tests are all carried out under the condition of a small ball screw pair load. The application range of the ball screw pair tested is mainly for transmission rather than load transmission. The corresponding ball screw The bar pair test bench cannot provide heavy-duty test conditions

Method used

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  • Double-oil cylinder loaded ball screw assembly test bed
  • Double-oil cylinder loaded ball screw assembly test bed
  • Double-oil cylinder loaded ball screw assembly test bed

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Embodiment Construction

[0010] refer to figure 1 , figure 2 , the double hydraulic cylinder loaded ball screw auxiliary test bench of the present invention comprises a test bench base 1 on which two symmetrical hydraulic cylinders I 4 and hydraulic cylinders II 8 are fixed, and the two hydraulic cylinders have piston rods respectively I 2 and piston rod II 9, a ball screw 19 is installed at the symmetrical center of the two hydraulic cylinders, one end of the ball screw 19 is supported on the screw flange II 20 through a deep groove ball bearing 21, the ball screw 19 The other end is supported on the lead screw flange I 13 through the angular contact ball bearing 15. At the same time, this end is connected with the large pulley 10 through the key 12 and the coupling 11, and the large pulley 10 is connected with the servo motor through the synchronous belt 7. The small pulley 6 on the 5 is connected, the screw flange II 20 and the screw flange I 13 are fixed on the base 1, the ball screw 19 is cover...

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Abstract

The invention discloses a double-oil cylinder loaded ball screw assembly test bed, which comprises a base, wherein the base is fixed with two symmetric hydraulic cylinders which are provided with piston rods respectively; a ball screw is arranged at the position of a central line between the two hydraulic cylinders; the two ends of the ball screw are supported by two screw flanges respectively; the two screw flanges are fixed on the base; one end of the ball screw is connected with a big belt pulley; the big belt wheel is connected with a small belt pulley arranged on a servo motor; a ball nut is sleeved on the ball screw; the ball nut and a nut flange are fastened together; the nut flange is connected with a sliding plate; and the two sides of the sliding plate are fastened with two piston rods respectively. When the test bed operates, the two hydraulic cylinders provide loads for the ball screw assembly, and the simulation of the operating conditions of the ball screw assembly can be realized by regulating the threshold value of a proportional relief valve a hydraulic system and the rotating speed of the ball screw. The test bed has the advantages of simple structure, easy operation, stable performance, wide load adjustment range and high precision.

Description

technical field [0001] The invention relates to a ball screw auxiliary test bench, in particular to a double oil cylinder loaded ball screw auxiliary experimental bench. Background technique [0002] At present, there is still a certain gap between the development level of domestic high-speed and large-load ball screw pairs compared with advanced countries. In addition to factors such as the accuracy of raw materials and processing equipment, the lack of perfect test and detection methods is also an important factor. Advanced testing methods can help to understand the performance of the product, and at the same time provide comparable data for product improvement. At present, although the domestic ball screw pair performance tests are relatively comprehensive, the tests are all carried out under the condition that the ball screw pair load is small. The application range of the ball screw pair tested is mainly for transmission rather than load transmission. The corresponding ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
Inventor 李凌丰罗容刘彩芬
Owner ZHEJIANG UNIV
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