人工关节仿生试验机的设计
DESIGN OF BIONIC TESTING MACHINE FOR ARTIFICIAL JOINTS
摘要
本课题是对人体髋关节模拟试验机机械传动部分的研制。在上个世纪,就有许多国家已经研究出很多种的关节仿生试验机的设备,并且发展至今,全球已经有几千万人通过置换仿生关节,重新可以正常行走。这个实验机的工作原理是将股骨头和髋臼部件试样按照人体正常位置安装于试验台上,通过试验装置使两者之间产生相对运动。该试验机设计时考虑的主要因素是使其在实验室环境中能够正确模拟人体髋关节的实际运动状况,以此来使试件在试验过程中产生的摩擦机理、磨损形式与实际使用条件下相一致,从而可以准确、可靠地测试人工关节材料的生物摩擦学特性参数,这些参数可以为临床应用提供指导性试验数据。
关键词:仿生试验机;人的髋关节;摩擦性能
Abstract
This topic is the developme
nt of the mecha
nical tra
nsmissio
n part of the huma
n hip joi
nt simulator. I
n the last ce
ntury, ma
ny cou
ntries have studied ma
ny ki
nds of equipme
nt for the bio
nic test machi
ne of joi
nt. A
nd so far, te
ns of millio
ns of people i
n the world have bee
n able to walk
normally through replaceme
nt of bio
nic joi
nts i
n the world. The pri
nciple of this experime
nt machi
ne is to i
nstall the specime
n of the femoral a
nd acetabular parts o
n the test bed i
n the
normal positio
n of the body, a
nd make the relative motio
n betwee
n the two. The mai
n factor to be co
nsidered i
n the desig
n of the test machi
ne is that it ca
n correctly simulate the actual moveme
nt of the huma
n hip joi
nt i
n the laboratory e
nviro
nme
nt so that the frictio
n mecha
nism a
nd wear form produced i
n the test process are i
n accorda
nce with the actual co
nditio
ns, thus the birth of the artificial joi
nt material ca
n be accurately a
nd reliably tested. The tribological properties of these parameters ca
n provide guida
nce test data for cli
nical applicatio
n. Keywords bio
nic testi
ng machi
ne huma
n hip joi
nt tribological properties 目录 摘要I Abstract II 1绪论1 1.1仿制髋关节试验设备的背景1 1.2人工关节仿生试验机到现在为止的研究情况2 1.3这次设计的主要目的4 2设计方案的选择5 2.1人体髋关节的组成和运动特点5 2.1.1髋关节结构的运动6 2.1.2人工仿制的髋关节组成6 2.2设计的方案的提出与选择7 2.3方案中各机构的运动特性分析10 3试验机的选用设计计算12 3.1选择电动机的类型12 3.2带传动的设计12 3.3选择减速器的类型15 3.4锥齿轮的设计16 3.4.1锥齿轮的主要几何尺寸设计计算16 3.5设计主传动轴的结构22 3.5.1选取轴的材料22 3.5.2选取轴的毛柸22 3.5.3确定主轴的最小直径23 3.5.4设计轴上的结构构成23 3.6设计摆轴的结构28 3.6.1摆轴的材料的选择28 3.6.2摆轴的最小直径的选择计算28 3.6.3摆轴上装配的设计28 3.6.4进行摆轴的强度校核,运用弯扭合成校核29 3.6.5摆轴上圆锥滚子轴承的校核计算30 3.7试验机的密封设计31 结论34 致谢35 参考文献36
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nt of the mecha
nical tra
nsmissio
n part of the huma
n hip joi
nt simulator. I
n the last ce
ntury, ma
ny cou
ntries have studied ma
ny ki
nds of equipme
nt for the bio
nic test machi
ne of joi
nt. A
nd so far, te
ns of millio
ns of people i
n the world have bee
n able to walk
normally through replaceme
nt of bio
nic joi
nts i
n the world. The pri
nciple of this experime
nt machi
ne is to i
nstall the specime
n of the femoral a
nd acetabular parts o
n the test bed i
n the
normal positio
n of the body, a
nd make the relative motio
n betwee
n the two. The mai
n factor to be co
nsidered i
n the desig
n of the test machi
ne is that it ca
n correctly simulate the actual moveme
nt of the huma
n hip joi
nt i
n the laboratory e
nviro
nme
nt so that the frictio
n mecha
nism a
nd wear form produced i
n the test process are i
n accorda
nce with the actual co
nditio
ns, thus the birth of the artificial joi
nt material ca
n be accurately a
nd reliably tested. The tribological properties of these parameters ca
n provide guida
nce test data for cli
nical applicatio
n. Keywords bio
nic testi
ng machi
ne huma
n hip joi
nt tribological properties 目录 摘要I Abstract II 1绪论1 1.1仿制髋关节试验设备的背景1 1.2人工关节仿生试验机到现在为止的研究情况2 1.3这次设计的主要目的4 2设计方案的选择5 2.1人体髋关节的组成和运动特点5 2.1.1髋关节结构的运动6 2.1.2人工仿制的髋关节组成6 2.2设计的方案的提出与选择7 2.3方案中各机构的运动特性分析10 3试验机的选用设计计算12 3.1选择电动机的类型12 3.2带传动的设计12 3.3选择减速器的类型15 3.4锥齿轮的设计16 3.4.1锥齿轮的主要几何尺寸设计计算16 3.5设计主传动轴的结构22 3.5.1选取轴的材料22 3.5.2选取轴的毛柸22 3.5.3确定主轴的最小直径23 3.5.4设计轴上的结构构成23 3.6设计摆轴的结构28 3.6.1摆轴的材料的选择28 3.6.2摆轴的最小直径的选择计算28 3.6.3摆轴上装配的设计28 3.6.4进行摆轴的强度校核,运用弯扭合成校核29 3.6.5摆轴上圆锥滚子轴承的校核计算30 3.7试验机的密封设计31 结论34 致谢35 参考文献36
作品编号:
150272
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