| 摘要 |
<p>A vibration generating device is provided. Where a bucket link is replaced by the vibration generating device, the vibration generating device is connected to a main operating valve by conduits. Since both flow rate control valve and fluid motor are housed within a casing, a high pressure conduit for connecting the vibration generating device and main operating valve is not necessitated, thereby making the structure compact, and making the working of conduit arrangement easy and improve reliability. The center axial line of the cylinder chamber, rotary axial line of the valve element of the rotary valve and center axial line of the valve element of the flow rate valve are made parallel to one another so that these cylinder chamber, rotary valve and flow rate control valve are arranged in a superposing fashion, thereby making the entire vibration generating device compact. <IMAGE></p> |
