Multifunctional manual gripper for drilling rig

Abstract

A multifunctional manual clamper for a drilling rig, including three parts: a manual clamping device, a drill pipe straightening mechanism and a dust collection device. The proper position of the shaft is provided with a square prism for clamping, the drill pipe straightening mechanism is set in the manual clamping device, and the dust collection device is set at the front end of the manual clamping device; the manual clamping device includes Main body mounting frame, guide plate, outer baffle plate and buckle plate, the drill pipe straightening mechanism includes guide bearing and outer end cover, and the dust collecting device includes a main frame, a dust seal ring and a rubber cover; the clamping device of the present invention The overall structure of the device is simple, easy to disassemble and assemble, and flexible to open and close. At the same time, it can reduce the radial movement of the drill pipe. The coal powder and stone chips enter the gap of the gripper, which ensures the flexible opening and closing of the gripper and improves the construction environment of the operation.

Description

technical field [0001] The invention relates to the technical field of underground drilling in coal mines, in particular to a multifunctional manual clamper for drilling rigs. Background technique [0002] The holder is widely used in drilling rigs, its main function is to clamp the drilling tool in the hole to prevent the drilling tool from sliding, and it can also cooperate with the power head to unscrew the drill pipe. The structure of the gripper is various. According to the different power sources that provide the clamping force of the drill pipe inside the gripper, the gripper can be divided into hydraulic type, spring type and manual type. The key components of hydraulic and spring clamps are springs, but the springs will be fatigued for a long time and the tension will decrease, while the pressure on the opposite side remains unchanged, which will lead to the deviation of the clamping axis of the clamping device. The displacement will eventually lead to the misalign...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a multifunctional manual gripper for drilling rigs in view of the existing gripper design and the problems of eccentric wear of the drill pipe and coal powder and stone chips entering the gripper gap during the drilling process. , it has simple structure, convenient operation, flexible opening and closing, and can also integrate the drill pipe centralizing mechanism and dust collecting device

Images