A bridge pile foundation drilling device

By designing a bridge pile foundation drilling device including a vehicle body, installation rod, lifting mechanism, drilling mechanism, adjustment mechanism and cleaning mechanism, the construction difficulties of the rotary drilling rig when encountering hard soil layers when drilling, the effect of efficient penetration of soil layers of different hardness is achieved, and the construction safety is improved.

CN118728256BActive Publication Date: 2025-03-18CHINA CONSTR THIRD ENG BUREAU GRP CO LTD +1
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Patent Information

Application Number
CN202410801825.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-20
Publication Date
2025-03-18
Estimated Expiration
2044-06-20

AI Technical Summary

Technical Problem

When drilling holes, existing rotary drilling rigs encounter hard rocks or hard soil layers, they are difficult to penetrate, resulting in construction difficulties. The traditional treatment method increases the workload and has a low construction safety factor.

Method used

A bridge pile foundation drilling device is designed, including a vehicle body, a mounting rod, a lifting mechanism, a drilling mechanism, an adjustment mechanism and a cleaning mechanism. The vehicle body is moved through the track mechanism, the adjustment mechanism adjusts the vehicle body posture, the lifting mechanism drives the drilling mechanism down, the first motor drives the drilling rod to rotate, and the torque adjusting part increases the torque of the drilling rod to penetrate the hard soil layer.

Benefits of technology

Efficient drilling in soil layers of different hardness is achieved, which reduces disturbances to the soil, avoids additional workload and improves construction safety.

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Abstract

The present invention belongs to the technical field of engineering machinery and equipment, and in particular, relates to a bridge pile foundation drilling device, comprising: a vehicle body, which moves through a crawler mechanism; a mounting rod, which is fixedly connected to the top of the vehicle body and is tilted; a lifting mechanism, which is arranged on one side of the mounting rod; a drilling mechanism, which is arranged on the side of the mounting rod away from the lifting mechanism, and the drilling mechanism is fixedly connected to the lifting end of the lifting mechanism; an adjusting mechanism, which is arranged in the vehicle body, and the adjusting mechanism is located at one end of the vehicle body away from the drilling mechanism, and the bottom end of the adjusting mechanism extends out of the vehicle body; a cleaning mechanism, which is sleeved on the outside of the drill rod, and the cleaning mechanism is located at the bottom end of the drill rod, and the cleaning mechanism is fixedly connected to the mounting rod. The present invention changes the torque of the drill rod, so that the drill rod can drill through soil layers of different hardness, with little disturbance to the soil body, and does not increase additional workload, which is convenient and simple.
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Citation Information

Patent Citations

  • Method for performing in-water pile foundation hole drilling by large-diameter reverse circulation roller cone drilling

    CN105257215A

  • Air compression long spiral drilling machine capable of being used for rock stratum CFG construction and construction method

    CN117514051A

Cited By

  • Bridge pile foundation drilling device

    CN120443965A

  • A bridge pile foundation drilling device

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