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A half-covered and conveniently detachable shield scraper

A detachable scraper technology, which is applied in mining equipment, tunnels, earthwork drilling, etc., can solve problems such as easy failure of connecting bolts, installation and replacement, reduction of scraper life and cost, and increase of scraper resistance, so as to improve convenience and improve Safety and reliability, increase the effect of impact resistance

Active Publication Date: 2020-08-04
CSSC HEAVY EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the connecting bolts of the scraper are prone to failure and difficult to install and replace, and the cutter body is far higher than the mounting seat, which greatly increases the resistance of the scraper during use, and the main body of the scraper is subject to side impact. , the main body of the scraper is not supported by other supporting forces, which will easily lead to damage and deformation of the scraper, greatly reducing the service life and cost of the scraper

Method used

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  • A half-covered and conveniently detachable shield scraper
  • A half-covered and conveniently detachable shield scraper
  • A half-covered and conveniently detachable shield scraper

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Embodiment Construction

[0024] Below, in conjunction with accompanying drawing and specific embodiment, the present invention is described further:

[0025] Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, a semi-covered and conveniently detachable shield scraper includes a scraper body, a scraper mounting seat 2, a bolt pin 3 and a cap nut 5, the scraper body is T-shaped, and the scraper body includes a cutter body 7 and Knife handle 6, the knife body 7 is integrally formed with the knife handle 6, the corner of the back of the knife body 7 and an end face is set as a bevel, and the top of the knife body 7 is provided with an alloy blade 1, and the alloy blade 1 The quantity is 9 pieces, with 3 pieces as a row, and the 3 rows are respectively arranged on the top of the knife body 7 along the length direction of the knife body 7. The alloy blade 1 is vertically embedded on the knife body 7, and the back side of the knife body 7 A barb block 9 is provided, and a first positioning pi...

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Abstract

The invention discloses a semi-coated convenient disassembling type shield scraper. The semi-coated convenient disassembling type shield scraper comprises a scraper body, a scraper mounting seat, boltpins and cover type nuts. The scraper body comprises a cutter body and a cutter handle. Alloy cutting blades are arranged at the top end of the cutter body. A barbing block is arranged on the back face of the cutter body. A first positioning pin hole is formed in the cutter handle. A welding clamping position is arranged on the back face of the scraper mounting seat. A barbing groove matched withthe barbing block and a handle groove matched with the cutter handle are formed in the front face of the scraper mounting seat. A second positioning pin hole and a third positioning pin hole are formed in two sides of the handle groove. The bolt pins sequentially penetrate through the second positioning pin hole, the first positioning pin hole and the third positioning pin hole. The cover type nuts are screwed into the bolt pins. The semi-coated convenient disassembling type shield scraper is compact in structure. The scraper body is half covered by the scraper mounting seat. Safety and reliability of the scraper are greatly improved. The service life of the scraper is prolonged. Scraper changing is convenient.

Description

technical field [0001] The invention relates to the field of tunnel engineering construction equipment, and specifically designs a half-covered and conveniently detachable shield scraper. Background technique [0002] The complex working conditions of the shield construction are generally harsh, and the wear and failure of the scraper is inevitable. During the construction process, the cutter often needs to be replaced. However, due to the limitations of the working environment and working principle of the shield machine, the operating environment of the cutter A more stable structure and a more convenient installation method are required, but the traditional scraper has a complicated installation structure, inconvenient disassembly, and limited impact resistance, which is prone to falling off. If the tool is damaged or falls off during the operation, it will greatly affect the progress of the operation. [0003] Chinese patent CN 201420638556.9 discloses a shield machine s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/08
CPCE21D9/08
Inventor 齐锋胡静萍吴松良常明陈国荣黄正元马超良
Owner CSSC HEAVY EQUIP CO LTD
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