The invention belongs to the field of pneumatic technology, in particular to a self-driving cylinder. The end cap with the exit valve is installed at the left and right ends of the shell and forms the left and right cylinder chambers with the cylinder chamber and piston; the upper and lower sides of the shell are equipped with cover plates, which press transducers into the pump chamber of the shell through the sealing ring and form the inner and outer pump chambers with the shell and cover plates respectively; the cover plates press the sealing ring into the two sinking chambers of the shell to form the inlet and outlet chambers; the inlet and outlet chambers are in turn in series with the pump chambers and outlet chambers. The inner pump is connected, and the inlet cavity is connected in series with the outer pump cavity and the outlet cavity to form the outer pump; the inner and outer pumps on the upper and lower sides of the shell are connected in series with the upper and lower air supply units respectively through parallel connection; the outlet of the lower air supply unit is connected with the left and right inlet valves; the transducer is composed of two actuators and gaskets, and the driver is composed of a base plate and a piezoelectric plate; the driving unit of the transducer is driven by direct current. When the dynamic voltage is deformed and the output voltage of the sensor unit reaches its maximum, the driving voltage is reversed, and the driver realizes self-excitation drive.
【技术实现步骤摘要】
一种自驱动气缸
本专利技术属于气动
,具体涉及一种自驱动气缸。
技术介绍
液压及气压传动与控制系统具有高能量密度、低噪音、无冲击等优势,在国民经济和国防工业的各个行业已成功应用多年。传统的气压动力系统通常都是由尺寸较大的电动机和机械式气泵进行驱动的,并通过换向阀、减压阀及调速阀等多类型阀的联合作业实现输出力、速度及位置等的有效控制,故体积庞大、结构连接及控制比较复杂,应用上具有很大的局限性:无法用于航空航天、行走机器人等微小系统及远程控制系统;同时,由于现有气压动力系统采用种类繁多的气阀进行联合控制,难以实现驱动力、速度及位置的精确控制与调节,无法用于精密机械加工与装配、精密测量、精密光学驱动等要求驱动、定位及控制精度高的领域。因此人们相继提出了多种类型的微小型液压及气动系统,如中国专利201510843026.7、201310132556.1、201410611173.7等,因现有微小型液压或气动系统均由固定频率驱动的,实际工作中其驱动力及速度受工作负载影响较大,当具体工况下的驱动元件谐振频率与所设定的激励频率偏差较大时,气体输出量和压力都将大幅度下降,且根据设定驱动电压及频率计算所得的驱动力及速度精确度也较低。
技术实现思路
本专利技术提出一种自驱动气缸,本专利技术的实施方案是:左右端盖经螺钉安装在壳体的左右两端并与缸腔及置于缸腔内的活塞共同构成左右缸腔,左端盖上设有左进出口阀,右端盖上设有右进出口阀;壳体上下两侧都经螺钉装有盖板,盖板经密封圈将换能器压接在壳体的泵腔内,密封圈位于换能器上下两侧,换能器及密封圈与壳体形成内泵腔、与盖板形成外泵腔;盖板 ...
【技术保护点】
1.一种自驱动气缸,其特征在于:左右端盖装在壳体的左右两端并与缸腔及缸腔内的活塞共同构成左右缸腔,左端盖上设有左进出口阀,右端盖上设有右进出口阀;壳体上下两侧都装有盖板,盖板经密封圈将换能器压接在壳体的泵腔内,换能器及密封圈与壳体形成内泵腔、与盖板形成外泵腔;盖板将小密封环压接在壳体的小沉腔内形成进孔腔、将大密封环压接在壳体的大沉腔内形成出孔腔,进出孔腔分别与进出孔连通;进孔腔与各内泵腔及出孔腔依次串联构成内泵,进孔腔与各外泵腔及出孔腔依次串联构成外泵;壳体上方的内外泵经进出孔腔并联成上供气单元,壳体下方的内外泵经进出孔腔并联成下供气单元:上下供气单元串联,下供气单元的出孔经管路与左右进口阀连接,左右进口阀并联;换能器由两个驱动器及垫圈构成,驱动器由基板与压电片粘接而成;一个换能器中的驱动器含有驱动单元和传感单元;工作中,左右相邻的同一个供气单元中的两个换能器的变形方向相反;驱动单元受直流驱动电压作用变形并使传感单元输出电压达到极值时驱动电压换向,驱动器实现自激驱动。
【技术特征摘要】
1.一种自驱动气缸,其特征在于:左右端盖装在壳体的左右两端并与缸腔及缸腔内的活塞共同构成左右缸腔,左端盖上设有左进出口阀,右端盖上设有右进出口阀;壳体上下两侧都装有盖板,盖板经密封圈将换能器压接在壳体的泵腔内,换能器及密封圈与壳体形成内泵腔、与盖板形成外泵腔;盖板将小密封环压接在壳体的小沉腔内形成进孔腔、将大密封环压接在壳体的大沉腔内形成出孔腔,进出孔腔分别与进出孔连通;进孔腔与各内泵腔及出孔腔依次串联构成内泵,进孔腔与各外泵腔及出孔腔...
【专利技术属性】
技术研发人员:王淑云,杨泽盟,刘晨欣,马继杰,唐红艳,曾平,
申请(专利权)人:浙江师范大学,
类型:发明
国别省市:浙江,33
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