120results about How to "Drilling stability" patented technology

The invention discloses an application method for a clamping device of an electric cabinet. The steps of the application method comprises S1, placing a base on the work table or floor and arranging a screw rod running through one side of the base; S2, arranging a pressing plate at the end of the screw rod in the base, when rotating the screw rod, driving the pressing plate to move along the axis of the screw rod by rotating the screw rod; S3, arranging a damping plate at the other end, away from the screw rod, of the pressing plate, and installing an elastic element between the pressing plate and the damping plate; S4, adjusting the length of a base plate of the base and a side plate, and placing the electric cabinet on the base plate of the base; S5, rotating the screw rod to make the plate fit with the electric cabinet and pressing the electric cabinet tightly for drilling a hole; S6, after drilling the hole, rotating the screw rod oppositely to make the damping plate away from the electric tightly to release the electric cabinet. The application method for clamping device of an electric cabinet has the advantages that the drilling hole is more stable, installation accuracy is improved and the operation is convenient.

The present invention relates to a cutting tool for drilling having inserts in the same shape and being capable of discharging a chip in a chip flute. The cutting tool comprises: a body including a chip flute; and indexable inner and outer cutting inserts disposed in an insert pocket formed at an end of the chip flute. The inner cutting insert is located close to a central axis of the body compared to the outer cutting insert. The inner and outer cutting inserts have the same shape and include lower cutting edges for depth cutting during drilling. The lower cutting edge of the inner cutting insert is disposed lower than the lower cutting edge of an imaginary cutting insert at a position where the inner cutting insert is overlapped with the imaginary cutting insert where the outer cutting insert is rotated by approximately a half-turn relative to the central axis.

The invention discloses an injection type mine drill bit type reamer. The injection type mine drill bit type reamer comprises a drilling and reaming hole rod, a drilling and reaming cutter and a plurality of reaming cutters. The center line of the drilling and reaming hole rod is arranged in the front-rear direction, and a cylinder-shaped high pressure water cavity is coaxially formed at the frontend of the drilling and reaming hole rod and the front end of the high pressure water cavity is open. A water injection hole is formed in the drilling and reaming hole rod in the center hole direction, the front end of the water injection hole communicates with the high pressure water cavity, the rear end of the drilling and reaming cutter is slidably connected into the high pressure water cavity, the reaming cutters are evenly formed along the front end face of the drilling and reaming hole rod in the peripheral direction, and the inner side of the front portion of the reaming cutters are inpressing-pushing fit with the conical surface of the reaming cutters. The injection type mine drill bit type reamer adopts the method of adjusting water pressure to separately perform drilling and reaming operations, has the advantages of simple structure, convenient operation, small size, light weight, flexible and reliable technology, unified power source of drilling reaming and hole reaming, stable hole reaming, easy recovery of cutters and implement of edge drilling while reaming, greatly improves the reliability of bolt anchoring, and ensures the safety of workers in borehole operation.

The embodiment of the invention provides an anti-settling device, a verification method and device thereof and a device for preventing sedimentation of a well, and belongs to the field of well drilling. The anti-settling device is arranged in a well opening area of the well during well drilling and used for preventing sedimentation of the well. The anti-settling device includes an anti-settling base and a connection locking device, an opening corresponding to the well opening is formed in the center of the anti-settling base, and the anti-settling base is distributed in the well opening area during well drilling. The connection locking device is arranged on the opening and used for connecting and locking a sleeve arranged in the well with the anti-settling base. The device for preventing sedimentation of the well includes the anti-settling base and the verification method used for the anti-settling base. The anti-settling device, the verification method and device thereof and the device for preventing sedimentation of the well can achieve reduction of pressure intensity of various well drilling devices on the well opening and a tundra under the well opening and further decrease thesedimentation amount of the well to achieve stable well drilling.

The invention relates to drilling machinery, in particular to a wall traceless safety water drilling machine. The wall traceless safety water drilling machine comprises a motor, a transmission device,a water drill bit, a wall fixing device, a guide rail 8 and a water pipe, wherein the wall fixing device comprises an expansion screw which is fixed on a wall and the guide rail which is in threadedconnection with the expansion screw, and the expansion screw and the guide rail are fixed to the center of a drilling hole; a sliding block is provided with a longitudinal central cavity, and the guide rail penetrates through the central cavity of the sliding block; a rack is arranged on the top surface of the guide rail, and a pinion meshed with the rack is arranged at the rear end of the slidingblock; the front end of the sliding block is a hollow cylinder, a driven gear is installed through a bearing, the water drill bit is installed on the driven gear, and the driven gear is meshed with adriving gear of the output shaft of the motor. The wall traceless safety water drilling machine has the beneficial effect that the sliding block 6 with the longitudinal central cavity 7 are arranged,the sliding block 6 with the longitudinal central cavity 7 can move along the guide rail, the expansion screw is fixed to the center of a wall drilling hole, the guide rail is fixed on the expansionscrew, the water drill is drilled in the drill hole namely the center of the drill hole through, the drilling wall core is removed after drilling hole, and no fixed mark is left on the wall, then, thesliding block 6 of an installation motor moves along a center guide rail, so that the drilling is labor-saving, stable, safe and positive in drilling.