Multifunctional manual clamp holder for drilling rig

Abstract

A multifunctional manual clamp holder for a drilling rig comprises a manual clamping device, a drill stem centralizing mechanism and a dust collection device. The manual clamping device is detachably fixed onto a feeding body of the drilling rig, a quadrangular prism portion for clamping is formed at a proper position of a drill stem body, the drill stem centralizing mechanism is arranged in the manual clamping device, and the dust collection device is arranged at the front end of the manual clamping device. The manual clamping device comprises a body mounting frame, a guide plate, outer retaining plates and a fastening plate; the drill stem centralizing mechanism comprises a guide bearing and an outer end cover; the dust collection device comprises a main frame, a dust seal ring and a rubber cover. The multifunctional manual clamp holder for the drilling rig is simple in integral structure, convenient to mount and demount, flexible in opening and closing and capable of reducing radial movement of the drill stem; due to integration of the manual clamping device, the drill stem centralizing mechanism and the dust collection device, coal dust and stone chips generated in a drilling process are effectively prevented from entering gaps of the clamp holder, and construction environment is improved while flexibility in opening and closing of the clamp holder is guaranteed.

Description

Technical field [0001] The invention relates to the technical field of underground coal mine drilling, in particular to a multifunctional manual gripper for a drilling rig. Background technique [0002] The clamper is widely used in drilling rigs. Its main function is to clamp the drill tool in the hole, prevent the drill tool from sliding, and can also cooperate with the power head to unscrew and unload the drill rod. The structure of the gripper is diverse. According to the different power sources that provide the clamping force of the drill rod inside the gripper, the gripper can be divided into hydraulic type, spring type and manual type. The key components of hydraulic and spring-type clamps are springs, but long-term use of springs will cause fatigue and reduce tension, while the pressure on the opposite side will remain unchanged, which will cause the clamping axis of the clamping device to deviate. As a result, the axis line of the drill rod does not coincide with the ax...

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

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