Walking device of rotary drilling rig

Abstract

The invention discloses a walking device of a rotary drilling rig. A driving wheel is arranged at the front end of a main vehicle frame, a guide wheel is arranged at the rear end of the main vehicle frame, the driving wheel and the guide wheel are connected through a crawler belt, a supporting chain wheel and a supporting wheel are arranged between the upper side of the main vehicle frame and thecrawler belt, and a thrust wheel is arranged between the lower side of the main vehicle frame and the crawler belt. Power of the driving motor is transmitted to the crawler belt through the driving wheel, movement of the whole rotary drilling rig is guaranteed, the supporting chain wheel achieves gentle movement of the whole rotary drilling rig through relative movement of the upper crawler belt and the lower crawler belt, the crawler belt of the rotary drilling rig can conduct drilling operation within any angle range in the direction of the crawler belt, maneuverability and flexibility are achieved, and the site adaptability is high. The stability and comfort of the whole machine during construction can be improved, construction and transportation are convenient, and the device has the advantages of being simple in structure, convenient to produce and prepare, low in cost, long in service life and low in failure rate.

Description

technical field [0001] The invention belongs to the technical field of drilling machinery equipment or devices, and in particular relates to a walking device of a rotary drilling rig. Background technique [0002] Rotary drilling rig is a kind of construction machine suitable for hole forming in construction foundation engineering. It generally adopts hydraulic crawler telescopic chassis, self-lifting and collapsible drilling mast, telescopic drilling rod, automatic detection and adjustment of verticality, and digital display of hole depth. etc. The control of the whole machine generally adopts hydraulic pilot control and load sensing, which has the characteristics of light and comfortable operation. The main and auxiliary winches can be applied to the needs of various situations on the construction site. This type of drilling rig can be used with different drilling tools, and is suitable for dry (short helix) or wet (rotary bucket) and rock formation (core drill) drilling ...

AI Technical Summary

Problems solved by technology

At present, the structure of the existing supporting sprocket has high requirements for the strength of the end fixing. Since the crawler of the rotary drilling rig is longer and the track shoe is wider than that of the excavator of the same tonnage, the track gravity of the supporting sprocket is larger than that of the excavator. When the driving wheel is driven in the reverse direction, the upper track of the supporting sprocket is tensioned, and the pressure on the supporting sprocket is greater under the action of traction. Sometimes it will appear under severe working conditions: the welding seam of the lower support of the supporting sprocket is cracked , The upper and lower support connecting bolts are broken, the fixed shaft of the supporting sprocket is bent and deformed, etc.

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