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A kind of continuous rib anchor rod steel and its preparation method

A technology of bolt steel and transverse ribs, which is applied in the installation of bolts, mining equipment, earthwork drilling and mining, etc. It can solve the problems of poor anchoring force, large deformation and easy occurrence of microcracks at the gaps at the ends of transverse ribs, etc., and achieves Improve the anchoring effect, reduce the generation of micro-cracks, and increase the effect of anchoring force

Active Publication Date: 2022-04-01
SHOUGANG CHANGZHI IRON & STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a continuous-ribbed anchor steel and a preparation method thereof, which are used to solve the problem that the surface of the anchor steel is densely covered with transverse ribs in the prior art, which causes work hardening due to large deformation, and is prone to micro-cracks, which affects the service life. The technical problem of poor anchoring force at the gap has achieved the technical effect of reducing the generation of micro-cracks after thread rolling, thereby improving the radial force capacity of the anchor rod and improving the anchoring effect

Method used

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  • A kind of continuous rib anchor rod steel and its preparation method
  • A kind of continuous rib anchor rod steel and its preparation method
  • A kind of continuous rib anchor rod steel and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0033] figure 1 It is a structural schematic diagram of a continuous rib anchor steel in the embodiment of the present invention, as figure 1 As shown, the continuous rib anchor steel includes:

[0034] The rod body 1, the rod body 1 includes: a first transverse rib section 11; a first straight section 12, the first straight section 12 is located at the end of the first transverse rib section 11; a second transverse rib section 13, The second transverse rib section 13 is located at the end of the first straight section 12 ; wherein, the outer surfaces of the first transverse rib section 11 and the second transverse rib section 13 are provided with threads 4 .

[0035] Further, the thread 4 is a left-handed thread, or a right-handed thread.

[0036] Further, the thread 4 is a continuous equal-height thread.

[0037] Specifically, as image 3 , 4As shown, the rod body 1 is the main external structure of the continuous rib anchor rod steel, and its shape is a long cylindrica...

Embodiment 2

[0051] Figure 8 It is a schematic flow chart of a preparation method of continuous rib anchor steel in the embodiment of the present invention, as Figure 8 As shown, the method includes:

[0052] Step 1: Start the roll turning, and use the lathe to turn the rolled piece out of the first pass structure according to the first preset requirements.

[0053] Specifically, after the pass pattern of the continuous rib anchor steel is designed, the roll turning can then be started. First, the first pass structure is turned on the CNC lathe according to the first preset requirements, that is to say, Such as Figure 5 As shown, according to the "pass pattern at the ribbed part", that is, the first inner circle 21 in the first pass structure is driven out of the pass pattern.

[0054] Step 2: using a milling machine to mill out threads 4 on the rolled piece according to preset requirements.

[0055] Specifically, as Figure 7 As shown, make a transverse rib milling cutter accordin...

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Abstract

The invention discloses a continuous rib anchor rod steel and a preparation method thereof, which belong to the technical field of steel rolling. Through a rod body, the rod body includes: a first transverse rib section; a first straight section, and the first straight section is located at the The end of the first transverse rib section; the second transverse rib section, the second transverse rib section is located at the end of the first straight section; wherein, the first transverse rib section and the second transverse rib section Threads are provided on the outer surface, and the first transverse rib section and the second transverse rib section have a first hole structure, and the first straight section has a second hole structure; the backing plate, the pad The plate is arranged at the end of the second transverse rib section; the nut is arranged on the side of the backing plate away from the second transverse rib section, and the nut is screwed with the rod body to reduce rolling. The generation of micro-cracks behind the wire, thereby improving the radial force capacity of the bolt and improving the technical effect of the anchoring effect.

Description

technical field [0001] The invention relates to the technical field of steel rolling, in particular to a continuous rib anchor rod steel and a preparation method thereof. Background technique [0002] Bolt support is a fast-developing mine roadway support method in recent years. By anchoring the bolts in the surrounding rock, the mechanical state of the surrounding rock itself is improved, so that the support body and the surrounding rock itself form a unified structure capable of bearing loads. structure, thereby improving the strength of the rock mass itself, preventing or delaying the deformation and development of the surrounding rock, and effectively maintaining the integrity of the surrounding rock and the section shape of the roadway. [0003] Bolt support is a safe and economical support method. It is a general term for support structures with bolts as the main body. It includes support forms such as bolts, anchor spraying, and anchor spraying nets. The technology i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D21/00B23P15/00
CPCE21D21/0026B23P15/00
Inventor 吴明安张联兵李罗扣胡洪聂学伟徐兵伟李文平丁建国解彦波史亚国詹卫金焦忠强张毅金小刚高向军
Owner SHOUGANG CHANGZHI IRON & STEEL
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