Truck-mounted drilling rig, mast assembly of drilling rig and auxiliary cathead device

Abstract

The invention discloses a truck-mounted drilling rig, a mast assembly of a drilling rig and an auxiliary cathead device. The auxiliary cathead device comprises a mounting base, wherein the mounting base is fixedly connected with a fixed mast of the drilling rig; the mounting base is provided with a horizontal lazy arm; further, the horizontal lazy arm is of a telescopic structure; along the length direction, the horizontal lazy arm comprises a fixed arm and at least one section of a telescopic arm which is connected in sequence; the auxiliary cathead device also comprises a swing drive; the fixed arm (11) is connected with the mounting base through the swing drive (8), so that the fixed arm (11) can be rotated at a preset angle relative to the mounting base (9) in a horizontal plane. The drilling rig provided with an auxiliary cathead can be used for realizing a lifting function; further, the horizontal lazy arm is of the telescopic structure provided with the fixed arm and the telescopic arm; when the drilling rig is used for carrying out a lifting operation, the extension length of the telescopic arm can be properly regulated according to the condition of a construction site, so as to meet a lifting requirement; moreover, the fixed arm can be relatively rotated relative to the fixed mast through the swing drive, so the performance of the drilling rig is further promoted.

Description

technical field [0001] The invention relates to the technical field of drilling rigs, in particular to a vehicle-mounted drilling rig, a drilling rig mast assembly and an auxiliary hanging anchor device. Background technique [0002] The vehicle-mounted drilling rig is a drilling rig with a truck chassis as the carrier. This type of drilling rig is widely used in various drilling fields due to its expertise in transportation, such as the development of medium and shallow oil wells and deep cold and hot water, natural gas, and salt wells. Drilling, coal bed methane mining, coal mine well construction project development, emergency rescue and other projects. [0003] The vehicle-mounted drilling rig mainly includes the following parts: traveling mechanism, upper body part, and mast assembly; the traveling mechanism is mainly responsible for carrying the working load, the upper body part and the mast assembly, and is responsible for working under the drive of the traveling redu...

AI Technical Summary

Problems solved by technology

[0005] Generally, the length of the mast is as long as several meters, or even more than ten meters. When installing the drill pipe, other hoisting equipment is needed for auxiliary installation, and other parts are often needed to be hoisted when drilling. However, the drilling rig in the prior art cannot realize the hoisting function, and also needs Special hoisting equipment is also equipped for hoisting construction. For drilling sites with relatively small space, it may not be possible to set up hoisting equipment, resulting in the same installation of drill pipes and unsmooth construction.

[0006] At the same time, the use of special hoisting equipment also greatly increases the cost of drill pipe installation and construction

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