A drill support device for drilling from bottom to top

A support device and drill bit technology, which is applied in earthwork drilling, shaft equipment, reverse sinking, etc., can solve problems such as inconvenient manual operation, mechanical instability caused by force, and reduced service life, so as to improve force instability problems, improved safety, and improved efficiency

Active Publication Date: 2021-09-07
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the drilling depth from bottom to top is too deep, and the diameter of the drill bit is larger than the diameter of the support cylinder, which will easily lead to the instability of the mechanism, which will greatly reduce the service life, and it is very inconvenient to operate manually in the mine

Method used

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  • A drill support device for drilling from bottom to top
  • A drill support device for drilling from bottom to top
  • A drill support device for drilling from bottom to top

Examples

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Embodiment Construction

[0047] Such as figure 1 , the present invention proposes a drill support device for drilling from bottom to top, including a lifting platform module and a plurality of support cylinders.

[0048] Such as Figure 7 , the lifting platform module includes a lift base, a plurality of vertical support columns 302a and a support platform 302b fixed above the support columns 302a; the support platform 302b is located above the lift base. Several support connection male heads are arranged on the support platform 302b. The support connection male head includes a horizontal hydraulic cylinder 301a and a support pin 301b; one end of the horizontal hydraulic cylinder 301a is fixed, and the other end is connected to the support pin 301b.

[0049] Such as Figure 8, the lifting base includes a lifting hydraulic cylinder 303a and a supporting plate 303b for placing the support cylinder; the lifting hydraulic oil cylinder 303a drives the supporting plate 303b up and down; the supporting pl...

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Abstract

The invention discloses a drill bit support device for drilling from bottom to top. When the lower support cylinder is installed, the lifting base lifts the lower support cylinder so that the self-locking connection male head of the lower support cylinder is connected with the self-locking connection female of the upper level. After the head is connected and self-locked, the support connection female head of the upper support cylinder is separated from the support connection male head; then the lifting base continues to lift the lower support cylinder, so that the support connection female head of the lower support cylinder reaches the matching height of the support connection male head, and the support connection The male head is connected with the support connection female head of the lower support cylinder to support the drill bit; the lower support cylinder can automatically expand the support rod by applying force to the support module of the upper support cylinder during the lifting process. The invention can drill upwards with the drill bit, install the support cylinders step by step, realize the self-locking connection between the support cylinders, and automatically expand the support rods, keep the working force of the drilling mechanism stable, without manual operation in the whole process, and The structure is simple and reliable, and the installation and disassembly are convenient.

Description

technical field [0001] The invention relates to the field of drilling equipment, in particular to a drill bit support device for drilling from bottom to top. Background technique [0002] At present, coal mining and other mines are gradually developing into deep and complex strata, which puts forward higher requirements and new challenges for the safe and efficient mining technology and equipment of deep and complex strata resources. The traditional top-down drilling method will cause the soil and rocks to be drilled to be difficult to transport, which will reduce the drilling efficiency. In order to improve the excavation efficiency of mine holes, an excavation method opposite to the traditional top-down excavation method has emerged. When drilling from bottom to top in the mine, the rock and soil excavated by drilling can be easily separated due to gravity, which can greatly improve the excavation efficiency. However, the depth of drilling from bottom to top is too deep,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D3/00
CPCE21D3/00
Inventor 江红祥王欧国蔡芝源王永信赵慧贺江林恒
Owner CHINA UNIV OF MINING & TECH
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