Hip joint testing machine based on steel rope drive

A wire rope and hip joint technology, which is applied in the field of artificial joint testing machines, can solve problems such as large differences in hip joint motion, achieve the effects of reducing test costs and maintenance costs, increasing applicability, and preventing leakage

Inactive Publication Date: 2011-02-16
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pin-on-disk friction and wear testing machine is a conventional test equipment for artificial joint tribology. It conducts friction and wear tests in the form of sliding contact, and studies the friction perfo

Method used

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  • Hip joint testing machine based on steel rope drive
  • Hip joint testing machine based on steel rope drive
  • Hip joint testing machine based on steel rope drive

Examples

Experimental program
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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the embodiment in the accompanying drawings:

[0012] figure 1As shown, the hip joint testing machine based on the wire rope transmission mainly consists of a frame, a moving platform 19 located in the frame, a drive shaft 46, a cam, a worm gear transmission mechanism, a support frame 45, a solution basin 39, and a ball under the moving platform 19. Headstock 41, column type pressure sensor 34 above moving platform 19, guide block 30, hydraulic cylinder 26, spring device constitute, frame is made of top plate 22, base plate 6 and the pillar 7 that is connected between top and base plate. The worm gear transmission mechanism mainly consists of a stepper motor 8 and a worm gear 5 connected to the stepper motor 8. The support frame 45 is fixed on the base plate 6 of the frame, and the support frame 45 is provided with a vertical transmission shaft 46. The lower cam 2, the worm gear 5, the middle ca...

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PUM

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Abstract

The invention relates to a hip joint testing machine based on steel rope drive, which integrates machine, electricity and liquid technologies into a whole, is suitable for accurately and reliably testing the biotribology characteristic parameters of joint prosthesis materials and provides guiding test data for medical clinical application. The hip joint testing machine mainly comprises a support part, a mechanical drive part, a hydraulic loading system and a temperature control part, wherein the mechanical drive part comprises a telescopic and stretching spring, a cam, a fixed pulley and a steel rope, wherein the steel rope is connected with a moving platform, a joint ball head and a spherical base of a thrust bearing are connected with and fixed to the moving platform, and the steel rope drives the moving platform and the joint ball head to complete crossed multidirectional compound sliding and rotary motion under the combined action of the cam; the hydraulic loading system is guided by a loading oil cylinder fixed on a top plate to drive a acetabulum to apply loads to the joint ball head; and the top plate of the hip joint testing machine is provided with a temperature controller. The invention has the advantages of simple structure and low cost, is convenient to operate and can simulate the actual motion conditions of the hip joints of human bodies.

Description

technical field [0001] The invention relates to an artificial joint testing machine, in particular to a wire rope transmission-based machine that can correctly simulate the actual motion conditions of human hip joints in a laboratory environment and can reliably test the biotribological characteristic parameters of artificial joint materials. Artificial joint testing machine. Background technique [0002] As human society enters the aging stage, various joint diseases related to aging, such as femur fractures, arthritis and other diseases, will occur in large numbers, so the demand for artificial joints will also increase day by day. At present, about 30 million people in the world have been implanted with artificial joints, and the annual replacement volume is about 2 million. Artificial joints are subjected to severe stress in the body, such as artificial hip joints, which have to withstand about 3.6×10 6 Load shocks and abrasions that may be several times the weight of ...

Claims

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Application Information

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IPC IPC(8): G01N3/02G01N3/56
Inventor 刘金龙葛世荣程刚陈烜
Owner CHINA UNIV OF MINING & TECH
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