The power head is an important kinetic energy part of the combination and its product quality will directly reflect the performance index of the whole dth hammer bit machine tool Cone drilling is located on a rock block which as opposed to excavation produces static and dynamic pressure on the rock block During the hole bottom calendering process the continuous pressure of the cone weakens the reaction and breaks the locking block Compressed gas with constant pressure and flow is discharged from the nozzle of the drilling site in the drilling pipe and the locking plate is continuously ejected from the hole along the rod shape at the bottom of the hole and the inner wall of the hole from the circular hole to form a desired hole depth Precision speed regulator In a working state the precision speed stabilizer is arranged on the drilling machine the annular plate and the drill bit are coaxially arranged and a plurality of extrusion plates are propped against the drill bit from the periphery A sliding groove is arrange on that same side of the second groove on the extrusion plate the support rod is inserted into the slide groove and limit structures matched with each other are arranged at the end of the support rod insert into the sliding groove and at the side outlet of the sliding groove A circle of limit ring is arranged at the outlet of the sliding groove a flange surface is arranged at the end part of the supporting rod inserted into the sliding groove and the flange surface is propped against the limit ring from the inside of the sliding groove during the relative sliding process of the supporting rod and the extrusion plate Expand the full text Precision speed regulator The precision speed stabilizer is installed on the drilling machine and in the working process of the drill bit Borehole Drill Bits the vibration on the equipment can be buffered through the precision speed stabilizer so that the risk of route deviation in the advancing process is reduced; and the resistance of the precision speed stabilizer is applied to the drill bit through surface contact so that the drill bit can be prevented from being scratched by a sharp structure; Secondly it can make the resistance act on the drill bit in the form of surface contact improve the effect of tremor mitigation and thus reduce the risk of the drill bit deviating from the route by a large margin The precision speed regulator is mounted on a drill bit an annular plate is coaxial with the drill bit and a plurality of extrusion plates are externally opposed to the drill bit A sliding groove is arranged on the same side of the second groove of the extrusion plate the supporting rod is inserted into the sliding groove and a matching limiting structure is arranged at the front end of the supporting rod inserted into the sliding groove and the outlet on DHD Drill bit the sliding groove side A circle of a limit ring is arranged at the outlet of the sliding groove and a flange surface is arranged at the front end of a supporting rod inserted into the sliding groove In the relative sliding process of the support rod and the extrusion plate the flange surface is relatively limited from the inner side of the sliding groove In order to improve the accuracy during the machining process of the bit position the vibration of the precision speed regulator buffer device can be used From the perspective of development the precision speed regulator will help enterprises to improve processing accuracy reduce production costs improve labor productivity and improve enterprise efficiency
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