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2. 发明授权

US4991664A Compression-vacuum percussive action machine 失效
标题翻译：压缩真空冲击作用机
公开(公告)号：US4991664A
公开(公告)日：1991-02-12
申请号：US474739
申请日：1990-04-09
申请人： Jury N. Kolgan , Nikolai M. Kirjushin , Ivan A. Prokhorov , Vitold A. Kezik , Evgeny I. Ryabokon
发明人： Jury N. Kolgan , Nikolai M. Kirjushin , Ivan A. Prokhorov , Vitold A. Kezik , Evgeny I. Ryabokon
IPC分类号： E21C37/22 , B25D9/10 , B25D11/12 , E21B1/30 , E21C37/24
CPC分类号： B25D11/125 , B25D2217/0088
摘要： A compression-vacuum percussive action machine has a housing (1) which accommodates a cylinder (2) containing a hammer (7) and a piston (3) separated from the hammer (7) by an air cushion (8), a crank (5) connected to the piston and linked with a drive shaft (6) by a counterweight (10) whose center of mass is offset relative to a straight line (A--A) connecting the points of intersection of the axes (O.sub.1 and O.sub.2) of the drive shaft (6) and crank (5) with a plane perpendicular to the axis (O.sub.1) of the drive shaft (6). The projection of the counterweight (10) plotted on this plane is defined by a shape having two portions (12, 13) of which one (12) is symmetrical with the straight line. (A--A) passing through the points of intersection of the axes (O.sub.1 and O.sub.2) of the drive shaft (6) and crank (5) with a plane perpendicular to the axis (O.sub. 1) of the drive shaft (6), whereas the center of mass (b) of the other portion (13) rests at a line (B--B) turned relative to said straight line (A--A) in a direction (.omega.) of rotation of the crank (5) to an angle (.beta.) of 45.degree.-90.degree.. Masses m.sub.1 and m.sub.2 of the portions (12, 13) of the counterweight (10) corresponding to these portions of the shape are determined by the relationship: ##EQU1## where r.sub.1 and r.sub.2 are the distances from the point of intersection of the axis (O.sub.1) of the drive shaft (6) with a plane perpendicular to this axis to the centers of mass (a, b) of the portions (12, 13) of the counterweight (10) with the respective masses m.sub.1 and m.sub.2, whereas K=1-2.
摘要翻译： PCT No.PCT / SU89 / 00205 Sec。 371日期1990年04月9日 102（e）1990年4月9日PCT PCT 1989年8月9日PCT公布。出版物WO90 / 0161200 日本1990年2月22日。压缩真空冲击作用机具有壳体（1），其容纳包含锤（7）的气缸（2）和通过气垫与锤（7）分离的活塞（3）（8），连接到活塞并通过配重（10）与驱动轴（6）连接的曲柄（5），该配重（10）的质心相对于连接轴线的交点的直线（AA）偏移（6）的轴线（O1和O1）和与驱动轴（6）的轴线（O1）垂直的平面的曲柄（5）。在该平面上绘制的配重（10）的投影由具有两个部分（12,13）的形状限定，其中一个（12）与直线对称。（AA）通过与驱动轴（6）的轴线（O 1）垂直的平面穿过驱动轴（6）的轴线（O1和O2）与曲柄（5）的交点，而另一部分（13）的质心（b）以在曲柄（5）的旋转方向（ω）为相对于所述直线（AA）转动的线（BB）的角度（β）处于 45°-90°。对应于这些形状的这些部分的配重（10）的部分（12,13）的质量m1和m2由以下关系确定：其中r1和r2是与轴的交点的距离（驱动轴（6）的垂直于该轴线的平面与配重（10）的部分（12,13）的质心（a，b）相对应的质量m1和m2，而K = 1-2。

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