设计描述：

文档包括:
说明书一份,35页,23000字左右.
CAD版本图纸共8张

举重床设计及仿真

摘  要：“生命在于运动”,生命之美在于它时时刻刻都处于运动之中，而体育，恰好集中了这种美。它将力量与技巧，速度与优美同时体现到了极至,赋予人无限的启示与动力，而举重是一响项很古老的运动。本设计是设计举重床而且属于多功能型健身器，该举重床综合安全性能高，操作方便灵活，即使用于室内健身锻炼也适用于室外健身锻炼。本设计设计的举重床其杆铃架与举重床整体可以拆分开来，拆分出杆铃架后，把背垫调到下斜，就可以做仰卧起坐，从而锻炼腰部。该举重床可以调节杆铃升降，杆铃升降调节不用像传统那样要把杆铃片取下再调节，而是采用齿轮传动丝杆丝母直接进行调节，调节高度范围为50CM；举重床的背垫采用滑杆滑套螺钉固定调节，调节范围增加，且方便灵活，操作简便；该举重床还有踢腿机构、卧推架机构以及高拉杆机构。其中高拉杆机构拉悬挂的重物改设成拉弹簧以增加安全性，踢腿机构和卧推架机构都是栓挂哑铃片或者是杆铃片。本设计设计出的举重床适合广大人民群众使用。
关键词：多功能健身器；健身器；举重床；举重床设计；运动仿真

The Design and Simulation of Weightlifting Bed

Abstract: "Life is exercise",the beauty of life is that it all the time in the campaign, and sports, it focused on the beauty of this kind. It will power and skill, the speed and the beautiful and reflect the extreme, give a person infinite enlightenment and power, and weight lifting is a ring of very old movement. This design is the design weightlifting bed and belong to templet machines, this weightlifting bed comprehensive safety performance is high, the operation is convenient and flexible, even if used for indoor fitness exercise also applies to outdoor exercise. The design of the stem design weightlifting bed frame and the bed can be split from the whole weight lifting, split out stem the bell after the fight, her back cushion to transfer to the oblique, can do sit-ups, so as to exercise the waist. The weight lifting bed can adjust the pole fluctuation, the pole and the like that without traditional stem of the bell took regulation again, but adoption gear drive screw wire mother directly on the adjustment, the height adjustment range of 50 CM; Lifting weights of the bed by HuaGan slide set back cushion adjustment screws, adjusting range increased, and convenient and flexible, simple operation; The weight lifting bed and kick institutions, lie push frame institutions and high levers of institutions.Among them high bars, a weight of institutions to suspension set to pull to increase the safety of spring, kick institutions and lie push frame agencies are bolts of hang dumbbell or stem of the bell. The design of the design for the broad masses of the weight lifting bed use.
Keywords：multi; fitness equipment; weightlifting bed; weightlifting bed design; movement simulation

目  录
摘要 …………………………………………………………………………………1
关键词 ………………………………………………………………………………1
1  前言………………………………………………………………………………2
1.1  举重起源与发战…………………………………………………………2
1.2  举重健身…………………………………………………………………3
2  举重床总体方案设计……………………………………………………………4
3  杆铃升降调节机构的设计………………………………………………………5
3.1  方案比较与选择…………………………………………………………5
3.1.1  方案一：利用蜗轮蜗杆—丝杆传动机构实现杆铃升降调节…5
3.1.2  方案二：利用齿轮—丝杆传动机构实现杆铃升降调节………5
3.1.3  方案比较…………………………………………………………6
3.1.4  方案选择…………………………………………………………7
3.2  圆锥齿轮及箱体设计计算…………………………………………………7
3.2.1  圆锥齿轮设计计算………………………………………………7
3.2.2  轴的设计计算……………………………………………………11
3.2.3  轴承的选择及寿命校核…………………………………………16
3.2.4  键联接的选择及校核……………………………………………18
3.2.5  联轴器的选择……………………………………………………18
3.2.6  齿轮箱的附件的选择……………………………………………18
3.2.7  齿轮箱润滑方式及密封形式……………………………………20
3.3  丝杆丝母设计……………………………………………………………20
3.3.1  丝杆丝母材料选择………………………………………………20
3.3.2  耐磨性计算………………………………………………………20
3.3.3  丝杆强度计算……………………………………………………22
3.3.4  丝母螺纹牙的强度计算…………………………………………22
3.3.5  丝杆的稳定性计算………………………………………………23
3.4  杆铃支架设计……………………………………………………………23
4  杆铃升降调节机构仿真…………………………………………………………24
5  卧推机构设计……………………………………………………………………24
6  踢腿机构设计……………………………………………………………………25
7  高拉杆机构设计…………………………………………………………………25
8  背垫调节机构设计………………………………………………………………26
9  举重床支架体设计………………………………………………………………27
10  设计结论 ………………………………………………………………………27
参考文献 ……………………………………………………………………………29
致谢 …………………………………………………………………………………30