Fixing device of pulley seat, rotary drilling rig and fixing method of power head

Abstract

The invention discloses a fixing device of a pulley seat, a rotary drilling rig and a fixing method of a power head, and relates to the technical field of rotary drilling rigs. The fixing device of the pulley seat comprises a sliding frame body, the pulley seat and square pins; the sliding frame body is provided with a first guide groove and a plurality of first square holes, and the first squareholes are formed at the two sides of the sliding frame body respectively; pulleys are arranged on the pulley seat, the number of the pulleys is two, and the pulley seat is arranged in the first guidegroove; and the multiple square pins are arranged in the first square holes respectively and inserted between the two pulleys, and the pulley seat is detachably fixed to the sliding frame body throughcooperation of the square pins and the two pulleys. According to the device, the pulley seat is detachably fixed on the sliding frame body through matching of the square pins and the pulley seat, andthe power head is fixed on the pulley seat and the sliding frame body is fixed on a mast of the rotary drilling rig, so that the fixing device has the advantage that the power head can be conveniently fixed, disassembled and assembled.

Description

technical field [0001] The present application relates to the technical field of rotary drilling rigs, in particular to a fixing device for a pulley seat, a rotary drilling rig and a fixing method for a power head. Background technique [0002] With the rapid development of my country's economic construction, the market demand for construction machinery, especially various drilling rigs, is increasing. The construction process of modern construction projects generally starts with pile foundation construction. Therefore, pile hole construction is particularly important. With its advantages such as high production efficiency, rotary drilling rigs are increasingly widely used in pile hole operations under different geological conditions. [0003] A typical rotary drilling rig includes a traveling mechanism, a mast, and a power head. The power head is the main working part of the rotary drilling rig. The power head is generally installed on the pulley seat through multiple screw...

AI Technical Summary

Problems solved by technology

[0003] A typical rotary drilling rig includes a traveling mechanism, a mast, and a power head. The power head is the main working part of the rotary drilling rig. The power head is generally installed on the pulley seat through multiple screws, and then the pulley seat is installed on the It is used on a rotary drilling rig, but this installation method is inconvenient to disassemble the power head. If the power head is damaged and needs to be repaired or the power head needs to be maintained, the worker needs to disassemble the power head, which will consume a lot of manpower and time

[0004] In the prior art, when the power head is disassembled, one method is to remove all the bolts fixed between the power head and the pulley seat, so as to replace it, which is time-consuming and laborious, and reduces the efficiency of engineering construction; another method is to Remove the pin shaft between the pulley seat and the rotary drilling rig, and remove the power head and the pulley seat as a whole. However, during use, the pin shaft is prone to bending or indentation after being stressed, making it difficult to pull out the shaft and the shaft hole Difficult to assemble and disassemble

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