CN216406825U

CN216406825U - Prevent long-pending sediment sword section of thick bamboo and shield structure blade disc

Info

Publication number: CN216406825U
Application number: CN202123303025.3U
Authority: CN
Inventors: 李建斌; 贺开伟; 张世伟; 张琳; 马少奇; 代顺义; 龙秀堂; 喻中孝; 叶超
Original assignee: China Railway Engineering Equipment Group Co Ltd CREG
Current assignee: China Railway Engineering Equipment Group Co Ltd CREG
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-04-29
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a slag accumulation preventing cutter cylinder and a shield cutter head, and solves the problem that the existing cutter cylinder in the prior art is poor in slag accumulation preventing effect. The anti-slag-accumulation knife cylinder comprises a knife cylinder main body, a knife is arranged in the knife cylinder main body, a coated slag scraping plate matched with the knife is arranged on the front end face of the knife cylinder main body, and the coated slag scraping plate is detachably connected with the knife cylinder main body. Specifically, the cladding type slag scraping plates are symmetrically arranged on two sides of the cutter to carry out local non-contact cladding on the cutter. In the utility model, the covering type scum board with the detachable end surface is adopted, and during the rolling process of the hob, the mud cakes and attached scum on the surface are scraped off when passing through the covering type scum board, so that the mud cakes are removed, and the slag accumulation of the hob cylinder is prevented.

Description

Prevent long-pending sediment sword section of thick bamboo and shield structure blade disc

Technical Field

The utility model relates to the technical field of shield cutter barrels, in particular to a slag accumulation preventing cutter barrel and a shield cutter head.

Background

In the shield construction process, mud cakes are easy to form on the cutter, dregs caused by rotation of the hob easily cause dregs in the cutter barrel, and in order to guarantee the construction efficiency, the mud cakes and the dregs forming degree of the cutter barrel need to be reduced, and the dregs removing times are reduced. In the prior art, the anti-slag-deposition device of the cutter cylinder with the publication number of CN212985222U has the disadvantages of complex structure, high cost and troublesome replacement after a fault due to the fact that the shell is additionally arranged on the inner side for washing. The normal pressure hobbing cutter barrel with the publication number of CN213419102U does not consider the problem of slag accumulation protection of the cutter barrel, and the hobbing cutter and the cutter barrel need to be pulled out for treatment after slag accumulation. To sum up, prior art mostly washs and handles after caking mud cake and the long-pending sediment of sword section of thick bamboo, and it is troublesome to change after damaging, and is with high costs, can't provide effective protection to hobbing cutter and sword section of thick bamboo in the work progress.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a slag deposition prevention cutter cylinder and a shield cutter head, and solves the problem that the existing cutter cylinder in the prior art is poor in slag deposition prevention effect.

The technical scheme of the utility model is realized as follows: the utility model provides a prevent long-pending sediment sword section of thick bamboo, includes the sword section of thick bamboo main part, is equipped with the cutter in the sword section of thick bamboo main part, is equipped with the cladding formula scum board with cutter matched with on the preceding terminal surface of sword section of thick bamboo main part, and cladding formula scum board and sword section of thick bamboo main part can be dismantled and be connected. Specifically, the cladding type slag scraping plates are symmetrically arranged on two sides of the cutter to carry out local non-contact cladding on the cutter.

Further, the coating type slag scraping plate comprises a flat plate connecting part and a protruding coating part, the flat plate connecting part is connected with the knife cylinder main body through a fastening screw, and the protruding coating part is provided with a sector groove matched with the knife.

Furthermore, the outer surface of the flat plate connecting part, the inner surface and the outer surface of the protruding coating part are provided with wear-resistant layers. Preferably, the wear-resistant layer is formed by a wear-resistant material through a laser cladding method.

Further, the cutter is a hob and the cutter cylinder body is a normal-pressure cutter cylinder. When the cutter is a single-edge hob, the coating type slag scraping plate comprises a protruding coating part matched with the single-edge hob. When the cutter is a double-edged hob, the coating type slag scraping plate comprises two protruding coating parts matched with the single-edged hob. The rear end part of the knife cylinder main body is provided with a connecting flange, so that the knife cylinder can be conveniently disassembled and assembled.

The shield cutter head comprises the slag accumulation preventing cutter barrel, and the overall working efficiency of the cutter head is improved.

In the utility model, the covering type scum board with the detachable end surface is adopted, and during the rolling process of the hob, the mud cakes and attached scum on the surface are scraped off when passing through the covering type scum board, so that the mud cakes are removed, and the slag accumulation of the hob cylinder is prevented. The arrangement of the coating type slag scraping plate reduces the degree of sludge cake and the slag accumulation of the cutter cylinder, reduces the slag removing times, greatly improves the working efficiency, and has simple structure, convenient manufacture, low cost and high popularization value.

Drawings

In order to illustrate the embodiments of the utility model more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.

FIG. 1 is a schematic axial view of the slag deposition preventing knife cylinder of the present invention.

FIG. 2 is a schematic side view of the slag deposition preventing knife cylinder of the present invention.

FIG. 3 is a schematic top view of the slag deposition preventing knife cylinder of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1, in embodiment 1, a slag deposition preventing knife cylinder includes a knife cylinder main body 1, a knife 3 is arranged in the knife cylinder main body 1, the knife cylinder adopts a cylindrical cylinder, a coated slag scraping plate 2 matched with the knife 3 is arranged on a front end surface of the knife cylinder main body 1, and the coated slag scraping plate 2 is detachably connected with the knife cylinder main body 1. During installation, the cladding type slag scraping plate is installed after other parts are installed, and during replacement, the cladding type slag scraping plate can be replaced by unscrewing the bolt after the slag deposition preventing knife cylinder is integrally detached. In the rolling process of the hob, the mud cakes and attached muck on the surface are scraped off when passing through the coating type scum board, and the mud cakes are removed to prevent the cutter cylinder from accumulating slag. As a preferable mode, the coating type slag scraping plates 2 are symmetrically arranged on two sides of the cutter 3, and are used for partially coating the cutter 3 in a non-contact manner; the highest cutting edge part of the cutter is avoided, the hob is scraped from two sides, and the slag scraping efficiency is improved. Simultaneously, the full coverage of the installation gap of the hob is met, and the dregs are prevented from entering the inside of the cutter head.

As shown in fig. 3, in embodiment 2, based on embodiment 1, the coated scraper blade 2 includes a flat plate connecting portion 2-1 and a convex coating portion 2-2, and the flat plate connecting portion 2-1 is connected to the blade cylinder main body 1 by a fastening screw 2-3, so as to facilitate assembly and disassembly. The flat connecting part is matched with the knife cylinder main body, so that the outer side of the flat connecting part does not extend out of the knife cylinder main body. The protruding cladding part 2-2 is provided with a sector groove matched with the cutter 3, a hob installation gap is fully covered, and dregs are prevented from entering the inside of a cutter head.

In order to improve the wear resistance of the slag scraping plate, wear-resistant layers are arranged on the outer surface of the flat plate connecting part 2-1 and the inner surface and the outer surface of the convex coating part 2-2. The wear-resistant layer is formed by a wear-resistant material in a laser cladding mode, and the wear resistance is improved.

Further, the cutter 3 is a hob and the cutter cylinder body 1 is a normal pressure cutter cylinder. When the cutter 3 is a single-edge hob, the coated slag scraping plate 2 comprises a convex coating part 2-2 matched with the single-edge hob. When the cutter 3 is a double-edged hob, the coated slag scraping plate 2 comprises two convex coating parts 2-2 matched with the single-edged hob. The cladding type slag scraping plate is guaranteed to fully cover a mounting gap of the hob, and slag soil is prevented from entering the inside of the cutter head.

Example 3: as shown in fig. 2, a shield cutter head includes the slag deposit prevention cutter cylinder according to embodiment 2. The rear end part of the knife cylinder main body 1 is provided with a connecting flange 4, which is convenient for dismounting the knife cylinder main body. The cladding type slag scraping plate 2 and the knife cylinder main body 1 adopt a detachable design and are replaced quickly. Under the action of the cladding type slag scraping plate 2, the cutter mud cake is efficiently cleared, and the overall working efficiency of the cutter head is improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a prevent long-pending sediment sword section of thick bamboo which characterized in that: the novel knife cylinder comprises a knife cylinder body (1), a knife (3) is arranged in the knife cylinder body (1), a coating type slag scraping plate (2) matched with the knife (3) is arranged on the front end face of the knife cylinder body (1), and the coating type slag scraping plate (2) is detachably connected with the knife cylinder body (1).

2. The slag deposition preventing knife cylinder according to claim 1, characterized in that: the cladding type slag scraping plates (2) are symmetrically arranged on two sides of the cutter (3) and are used for carrying out local non-contact cladding on the cutter (3).

3. The slag deposit prevention knife cylinder according to claim 1 or 2, characterized in that: the coated slag scraping plate (2) comprises a flat plate connecting part (2-1) and a protruding coating part (2-2), the flat plate connecting part (2-1) is connected with the knife cylinder main body (1) through a fastening screw (2-3), and the protruding coating part (2-2) is provided with a sector groove matched with the knife (3).

4. The slag deposition preventing knife cylinder according to claim 3, characterized in that: and the outer surface of the flat plate connecting part (2-1), the inner surface and the outer surface of the convex coating part (2-2) are respectively provided with a wear-resistant layer.

5. The slag deposition preventing knife cylinder according to claim 4, characterized in that: the wear-resistant layer is formed by a wear-resistant material in a laser cladding mode.

6. The anti-slag-deposit knife cylinder according to claim 1, 2, 4 or 5, characterized in that: the cutter (3) is a hob, and the cutter cylinder body (1) is a normal-pressure cutter cylinder.

7. The slag deposition preventing knife cylinder according to claim 6, characterized in that: the cutter (3) is a single-edge hob, and the coated slag scraping plate (2) comprises a convex coating part (2-2) matched with the single-edge hob.

8. The slag deposition preventing knife cylinder according to claim 6, characterized in that: the cutter (3) is a double-edged hob, and the coated slag scraping plate (2) comprises two convex coating parts (2-2) matched with the single-edged hob.

9. The anti-slag knife cylinder according to claim 1, 2, 4, 5, 7 or 8, characterized in that: the rear end part of the knife cylinder main body (1) is provided with a connecting flange (4).

10. A shield tunneling machine cutterhead, comprising the slag deposit prevention knife cylinder according to any one of claims 1 to 9.