CN215486033U

CN215486033U - Screw thread fastening tube-shape blade holder structure for tunnel boring machine

Info

Publication number: CN215486033U
Application number: CN202121925140.1U
Authority: CN
Inventors: 杨延栋; 周建军; 赵建兵; 夏金选; 卢高明; 潘东江; 郭璐; 李帅远
Original assignee: State Key Laboratory of Shield Machine and Boring Technology; China Railway Tunnel Group Co Ltd CRTG; China Railway Development Investment Group Co Ltd
Current assignee: State Key Laboratory of Shield Machine and Boring Technology; China Railway Tunnel Group Co Ltd CRTG; China Railway Development Investment Group Co Ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-01-11
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses a thread-fastened cylindrical cutter holder structure for a tunnel boring machine, which relates to the technical field of full-face tunnel boring machines and comprises an inner cutter cylinder, a bolt, a disc cutter, a cutter shaft bracket, an outer cutter box, a limit screw, a limit groove, a bolt hole and an installation groove, wherein the outer cutter box is square outside and round inside, a multi-head trapezoidal internal thread is arranged in the outer cutter box, the inner cutter cylinder is of a cylindrical structure, a multi-head trapezoidal external thread is arranged on the outer surface of the inner cutter cylinder, and the installation groove is reserved in the hollow inner cutter cylinder; the disc cutters are arranged in the mounting grooves; has the advantages that: the tool apron structure is only fastened in a narrow space of a cutter head of a tunnel boring machine through threaded connection of the inner cutter cylinder and the outer cutter box, the inner cutter cylinder and the cutter shaft bracket are connected with the disc cutter in a cutter maintenance workshop, the disc cutter dismounting and mounting process in the cutter head is simplified, the disc cutter replacing time is shortened, and the using method is simple, effective and convenient to operate.

Description

Screw thread fastening tube-shape blade holder structure for tunnel boring machine

Technical Field

The utility model relates to the technical field of full-face tunnel boring machines, in particular to a thread fastening cylindrical cutter holder structure for a tunnel boring machine.

Background

The full-face tunnel boring machine is a modern tunnel excavation device, the disc cutter is a core tool for excavating rock and soil of the tunnel boring machine, the tunnel boring machine is constructed in rock strata, the disc cutter is consumed quickly and needs to be replaced in time, however, tool apron structural parts used by the existing tunnel boring machine are various, and all fasteners are installed in a narrow operation space of a cutter head, so that the tool changing operation time is long, and the cost is high.

How to solve the technical problems is a technical problem which needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The present invention has been made to solve the above problems, and an object of the present invention is to provide a screw-fastening cylindrical tool holder structure for a tunnel boring machine.

The utility model realizes the purpose through the following technical scheme:

a thread fastening cylindrical cutter holder structure for a tunnel boring machine comprises an inner cutter cylinder, a bolt, a disc cutter, a cutter shaft bracket, an outer cutter box, a limit screw, a limit groove, a bolt hole and an installation groove, wherein the outer cutter box is square outside and round inside; the disc cutter is arranged in the mounting groove, the cutter shaft brackets are respectively arranged at two ends of the cutter shaft of the disc cutter, four bolt holes are reserved at the upper end of the inner cutter cylinder corresponding to the two cutter shaft brackets, and the two cutter shaft brackets are tightly connected to the inner cutter cylinder through the matching of the bolts and the bolt holes; the lower end edge of the inner knife cylinder is provided with the limiting groove, the limiting screw is inserted into the limiting groove, and the limiting screw is fixedly installed on the outer knife box.

Preferably: the cutter shaft bracket is fixedly connected with the cutter shaft of the disc cutter through an inner hexagon screw.

Preferably: the outer cutter box is fixedly arranged on a cutter head of the heading machine.

Preferably: the outer knife box is welded and fixed with the knife disc.

Compared with the prior art, the utility model has the beneficial effects that: the tool apron structure is only fastened in a narrow space of a cutter head of a tunnel boring machine through threaded connection of the inner cutter cylinder and the outer cutter box, the inner cutter cylinder and the cutter shaft bracket are connected with the disc cutter in a cutter maintenance workshop, the disc cutter dismounting and mounting process in the cutter head is simplified, the disc cutter replacing time is shortened, and the using method is simple, effective and convenient to operate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a disc cutter with a thread-fastened cylindrical tool apron structure for a tunnel boring machine according to the utility model.

Fig. 2 is a schematic overall structure diagram of a thread-fastened cylindrical tool apron structure for a tunnel boring machine according to the present invention.

Fig. 3 is a schematic structural diagram of an outer cutter box of the thread fastening cylindrical cutter holder structure for the tunnel boring machine.

The reference numerals are explained below:

1. an inner knife cylinder; 2. a bolt; 3. a disc cutter; 4. a cutter shaft bracket; 5. a socket head cap screw; 6. an outer knife box; 7. a limit screw; 8. a limiting groove; 9. bolt holes; 10. and (4) mounting the groove.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be construed as limiting the utility model, and further, the terms "first", "second", etc., are used only for descriptive purposes and are not intended to indicate or imply relative importance or to implicitly indicate the number of technical features indicated, whereby the features defined as "first", "second", etc., may explicitly or implicitly include one or more of such features, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, and the two elements may be communicated with each other, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art through specific situations.

The utility model will be further described with reference to the accompanying drawings in which:

as shown in fig. 1-3, a screw-fastening cylindrical tool apron structure for a tunnel boring machine comprises an inner tool cylinder 1, a bolt 2, a disc cutter 3, a tool shaft bracket 4, an inner hexagon screw 5, an outer tool box 6, a limit screw 7, a limit groove 8, a bolt hole 9 and an installation groove 10, wherein the outer tool box 6 is square outside and round inside, and a multi-head trapezoidal internal thread is arranged in the outer tool box 6, so that the outer tool box is conveniently fastened with the inner tool cylinder 1; the outer cutter box 6 is of a square structure, so that the outer cutter box is convenient to weld and fix with the cutter head; the inner knife cylinder 1 is of a cylindrical structure, the outer surface of the inner knife cylinder 1 is provided with a multi-head trapezoidal external thread which is convenient to be fastened with the outer knife box 6 in a threaded manner, and a mounting groove 10 is reserved in the inner knife cylinder 1 in a hollow manner; a disc cutter 3 is arranged in the mounting groove 10, cutter shaft brackets 4 are respectively arranged at two ends of a cutter shaft of the disc cutter 3, four bolt holes 9 are reserved at the upper end of the inner cutter cylinder 1 corresponding to the two cutter shaft brackets 4, and the two cutter shaft brackets 4 are fixedly connected to the inner cutter cylinder 1 through the matching of bolts 2 and the bolt holes 9; the lower end edge of the inner knife cylinder 1 is provided with a limiting groove 8, a limiting screw 7 is inserted in the limiting groove 8, the limiting screw 7 is fixedly installed on the outer knife box 6, a tool is convenient to clamp the inner knife cylinder 1 to rotate and lock when the inner knife cylinder 1 is installed, and two limiting screws 7 are installed from the limiting groove 8 to the outer knife box 6 after the inner knife cylinder 1 is installed in place to prevent the inner knife cylinder 1 from loosening; the cutter shaft bracket 4 is fixedly connected with the cutter shaft of the disc cutter 3 through an inner hexagon screw 5; the outer cutter box 6 is fixedly arranged on a cutter head of the development machine; the outer knife box 6 is welded and fixed with the knife disc.

While there have been shown and described what are at present considered to be the fundamental principles of the utility model, its essential features and advantages, it will be understood by those skilled in the art that the utility model is not limited by the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is to be accorded the full scope of the utility model as hereinafter claimed.

Claims

1. The utility model provides a screw-fastening tube-shape blade holder structure for tunnel boring machine, includes interior sword section of thick bamboo (1), bolt (2), disc cutter (3), arbor bracket (4), outer cutter box (6), stop screw (7), spacing groove (8), bolt hole (9) and mounting groove (10), its characterized in that: the outer knife box (6) is square outside and round inside, a plurality of trapezoidal internal threads are arranged in the outer knife box (6), the inner knife cylinder (1) is of a cylindrical structure, a plurality of trapezoidal external threads are arranged on the outer surface of the inner knife cylinder (1), and the inner knife cylinder (1) is reserved with the mounting groove (10) in a hollow mode; the disc cutter (3) is arranged in the mounting groove (10), the cutter shaft brackets (4) are respectively arranged at two ends of a cutter shaft of the disc cutter (3), four bolt holes (9) are reserved at the upper end of the inner cutter cylinder (1) corresponding to the two cutter shaft brackets (4), and the two cutter shaft brackets (4) are fixedly connected to the inner cutter cylinder (1) through the matching of the bolts (2) and the bolt holes (9); the lower end edge of the inner knife cylinder (1) is provided with the limiting groove (8), the limiting screw (7) is inserted into the limiting groove (8), and the limiting screw (7) is fixedly installed on the outer knife box (6).

2. The screw-fastening cylindrical tool holder structure for a tunnel boring machine according to claim 1, characterized in that: the cutter shaft bracket (4) is fixedly connected with the cutter shaft of the disc cutter (3) through an inner hexagon screw (5).

3. The screw-fastening cylindrical tool holder structure for a tunnel boring machine according to claim 1, characterized in that: the outer cutter box (6) is fixedly arranged on a cutter head of the heading machine.

4. The screw-fastening cylindrical tool holder structure for a tunnel boring machine according to claim 3, characterized in that: the outer knife box (6) is welded and fixed with the knife disc.