Permanent pressure replaceable scraper device

A scraper device, atmospheric pressure technology, applied in mining equipment, earthwork drilling, tunnels, etc., can solve the problems of inconvenient scraper replacement, and achieve the effect of increasing work comfort, protecting safety, and solving problems of safety and efficiency.

Pending Publication Date: 2018-04-10
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention proposes a normal pressure replaceable scraper device, which solves the problem of inconvenient replacement of the scraper during shield tunneling construction

Method used

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] Such as figure 1 As shown in -4, the embodiment of the present invention provides a normal-pressure replaceable scraper device, including a scraper device 1 and a two-way sealing gate device, the scraper device 1 is connected with a replaceable knife cylinder 2, and the right end of the replaceable knife cylinder 2 is provided with Replaceable knife barrel rear cover 3, replaceable knife barrel fixing seat 18 and knife barrel welding seat 28 are arrange...

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Abstract

The invention provides a permanent pressure replaceable scraper device to solve the problem of the inconvenient replacement of the scraper in the shield construction. The device comprises a scraper device body and a two-way sealing gate device; the scraper device body is connected with a replaceable knife barrel; the right end of the replaceable knife barrel is provided with a rear cover of the replaceable knife barrel; the exterior of the replaceable knife barrel is provided with a replaceable knife barrel fixed seat; and the exterior of the replaceable knife barrel fixed seat is provided with the two-way sealing gate device. The permanent pressure replaceable scraper device can drive a blade to move back and forth through an oil cylinder, the oil cylinder contracts to drive the blade move backward, the high pressure steam in a tunnel face is isolated by the gate falling, and the blade can be conveniently replaced under a normal pressure; and the gate is raised after replacing, the blade is driven to move forward by the elongation of the oil cylinder, and construction work can be processed.

Description

technical field [0001] The invention relates to the technical field of shield tunneling equipment manufacturing, in particular to a normal-pressure replaceable scraper device. Background technique [0002] With the rapid development of transportation, water conservancy, and urbanization tunnel projects, shield construction is becoming more and more important in the construction of underground tunnels. The shield scraper is an essential tool in the shield construction process and is mainly used in the shield construction process. Improve the flow effect of muck. In a high water pressure environment, when the scraper is worn out, the process of replacing the scraper must maintain a high pressure in the soil bin. Therefore, the tool changer must withstand the high-pressure environment, and the tool change time is long and the efficiency of the tool change is low. , and has a great impact on the health of knife changers, especially in the case of large buried depth, high water p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08
CPCE21D9/08
Inventor 王杜娟叶蕾张家年张世伟张琳于庆增代顺义
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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