Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Drilling device for pile hole construction

A drilling device and a technology for pile holes, which are applied in the directions of driving devices, drilling equipment and methods, and drill bits for drilling in boreholes, can solve problems such as inability to continue drilling, damage to drill bits, and skewed pile holes, etc., and achieve improved drilling efficiency. Hole efficiency, increased bit life, avoiding skew and knocking shaft deformation effects

Inactive Publication Date: 2021-07-27
JINHUA VOCATIONAL TECH COLLEGE
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantages in the prior art that when the drill bit of the screw pile driver encounters a large hard stone, it will be stuck and unable to continue drilling, and forced drilling may cause damage to the drill bit or skewed pile holes, the present invention provides a The drilling device used for pile hole construction, when the drill bit encounters a large hard stone, the hard stone under the drill bit is struck by the striking device to break it, so that the drill bit can continue to drill. Improve drilling efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Drilling device for pile hole construction
  • Drilling device for pile hole construction
  • Drilling device for pile hole construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 Shown, a kind of drilling device for pile hole construction, comprises drill bit 1, drill shaft 2 and striking device 3; Drill bit 1 is used for drilling underground, and drill bit 1 is provided with several passing holes 1.1; 2 is used to extend into the ground and transmit power to drive the drill bit 1 to rotate. The drill bit 1 is arranged on the lower end of the drill shaft 2, and a spiral guide plate is provided on the outer wall of the drill bit 1 and the drill shaft 2; To break the hard rocks in the ground, the striking device 3 is arranged in the drill shaft 2. The striking device 3 includes a striking drive mechanism 3.2 and a striking head 3.1. The striking head 3.1 is provided with several The point 3.1.1, the point 3.1.1 passes through the corresponding through-hole 1.1 and protrudes out of the drill bit 1 .

[0032] In the above technical solution, the axial dimension of the drill shaft 2 generally reaches tens of meters or even tens of m...

Embodiment 2

[0034] Such as figure 2 As shown, on the basis of Embodiment 1, a locking device 4 is also included, the drill bit 1 is rotationally connected with the drill shaft 2, and the rotating shaft of the drill bit 1 coincides with the rotating shaft of the drilling shaft 2; the side wall of the drilling shaft 2 is provided with a lock Tight groove 2.2, the side wall of the locking groove 2.2 is provided with a first slope 2.2.1, the locking device 4 includes a locking block 4.1 and a locking spring 4.3, the locking block 4.1 is slidingly connected with the drill bit 1, and the locking spring 4.3 One end is connected to the locking block 4.1, the other end of the locking spring 4.3 is connected to the drill bit 1, one end of the drill bit 1 extends into the locking groove 2.2, and the end of the drill bit 1 extending into the locking groove 2.2 is provided with the first inclined surface 2.2. 1 Adaptive and contacting second bevel 4.2. The structure can realize the rotary connection...

Embodiment 3

[0036] Such as figure 2 and Figure 4 As shown, on the basis of Embodiment 2, the striking head 3.1 is slidably connected with the drill bit 1 in the vertical direction, and the striking driving mechanism 3.2 includes a lifting block 3.3, a guide block 3.4, a contact block 3.5, a first telescopic spring 3.6 and The second telescopic spring 3.7, the inner side wall of the drill shaft 2 is provided with a spiral groove 2.1, one end of the lifting block 3.3 is connected with the striking head 3.1 along the horizontal sliding, the other end of the lifting block 3.3 extends into the spiral groove 2.1, the first telescopic spring 3.6 One end of the first telescopic spring 3.6 is connected with the lifting block 3.3, the other end of the first telescopic spring 3.6 is connected with the striking head 3.1, the guide block 3.4 is fixed with the drill bit 1, the guide block 3.4 is provided with a guide ring groove 3.4.1, and the guide ring groove 3.4.1 is set In the vertical plane, on...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a drilling device for pile hole construction. The drilling device comprises a drill bit, a drill shaft and a striking device, the drill bit is used for drilling underground and is provided with a through hole; the drill shaft is used for stretching into the ground and transmitting power to drive the drill bit to rotate, the drill bit is arranged at the lower end of the drill shaft, and spiral guide plates are arranged on the outer side walls of the drill bit and the drill shaft; and the striking device is used for striking and breaking underground hard stones, the striking device is arranged in the drill shaft, the striking device comprises a striking driving mechanism and a striking head, and one end of the striking head penetrates through the through hole and extends out of the drill bit. According to the drilling device for pile hole construction, when the drill bit encounters a large hard stone block, the hard stone block below the drill bit is knocked through the striking device to be broken, the drill bit can continue drilling conveniently, and the drilling efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of drilling equipment, in particular to a drilling device for pile hole construction. Background technique [0002] The screw pile driver is a kind of pile driving equipment that drives the drill bit to drill holes underground through the power head. The screw pile driver can be divided into two parts: the pile frame and the drilling part. It is widely used in the drilling operation of pile holes on construction sites. Existing foundation screw pile drivers are generally suitable for occasions where the soil quality is relatively soft, and its drilling diameter is relatively large, and the drilling efficiency is relatively high. The drilling depth of the drilling device generally reaches tens of meters or even tens of meters, and it is inevitable to encounter larger hard stones. When the drill bit encounters a larger hard rock, it will be stuck and cannot continue drilling. Forcing the drill hole may caus...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E21B7/00E21B10/00E21B12/00E21B4/14E21B10/36
CPCE21B4/14E21B7/00E21B10/00E21B10/36E21B12/00
Inventor 朱锋盼姚永鹤李俊虎赵权威程显风
Owner JINHUA VOCATIONAL TECH COLLEGE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com