Multi-purpose hole head for screwdriver

A technology for hole heads and hole formers, applied in the direction of drill bits, drill pipes, casings, etc., which can solve problems such as affecting the entry of hole formers, excessive transmission capacity, and wear at joints, so as to enhance structural strength and facilitate connection operations , the effect of prolonging the service life

A technology for hole heads and hole formers, applied in the direction of drill bits, drill pipes, casings, etc., which can solve problems such as affecting the entry of hole formers, excessive transmission capacity, and wear at joints, so as to enhance structural strength and facilitate connection operations , the effect of prolonging the service life

CN112392411BActive Publication Date: 2022-07-12ZOUCHENG YANKUANG TAIDE IND & TRADE CO LTD
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  • Multi-purpose hole head for screwdriver
  • Multi-purpose hole head for screwdriver
  • Multi-purpose hole head for screwdriver

Examples

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Effect test

Embodiment

[0023] Please refer to figure 2 As shown, the present invention provides a multi-purpose hole head for a screwdriver, including a hole former joint 6, a connecting column 8 and a connecting rod joint 10, and the hole former joint 6 and the connecting rod joint 10 are respectively fixed on both ends of the connecting column 8, forming a hole. The end faces of the tool joint 6 and the connecting column 8 are provided with mounting holes 1, the inner wall of the mounting hole 1 is provided with an internal thread 11, and both sides of the hole former joint 6 and the connecting rod joint 10 are provided with bolt holes 13. The outer wall of the port of the hole 13 is fixedly connected with a reinforcing rib 9, and the reinforcing rib 9 is provided with a receiving slot 7 at the outer port of the bolt hole 13. The hole former and the connecting rod are respectively connected with the multi-purpose hole head of the screwdriver. The connection operation is convenient, using bolts Th...

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Abstract

The invention discloses a multi-purpose hole head of a screwdriver, comprising a hole former joint, a connecting column and a connecting rod joint. The end faces of the columns are all provided with mounting holes, the inner walls of the mounting holes are provided with internal threads, the two sides of the hole former joint and the connecting rod joint are provided with bolt holes, and the outer walls of the ports of the bolt holes are fixedly connected There is a reinforcing rib, and the reinforcing rib is provided with a receiving slot at the outer port of the bolt hole; the hole former and the connecting rod are respectively threaded with the multi-purpose hole head of the screwdriver, and the connection operation is convenient. The connector and the connecting rod and the connecting rod joint are firmly fixed, and the reinforcing ribs effectively enhance the structural strength of the bolt hole to prevent cracking during the fixing process. Wear and tear on the connecting part during the process.

Description

technical field [0001] The invention relates to the technical field of mining equipment accessories, in particular to a multi-purpose hole head of a screwdriver. Background technique [0002] At present, in coal mine exploration or operations, hole formers have been used in many ways, so the requirements for the connection between the connecting rod and the hole former are getting higher and higher. If the joint between the hole former and the connecting rod exerts less Torque, transferability can cause excessive torque, resulting in a lower coefficient of friction, and excessive torque can stretch, crack, or break the drill pipe, which is not desired, and can cause hole formers and connections The service life of the rod is shortened, and the maintenance cost is increased. At the same time, the connection between the connecting rod and the hole former will bulge during the operation of the hole former, and resistance will be generated during the drilling process, which will...

Claims

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Application Information

Patent Timeline
12 Jul 2022
Publication
CN112392411B
IPC
E21B17/04; E21B17/042; E21B10/32
CPC
E21B17/04; E21B17/0423; E21B10/32
Inventors
段石; 郁江华