Hard alloy edge scraper for shield tunneling machine

Abstract

The utility model discloses a hard alloy edge scraper for a shield tunneling machine, which belongs to the technical field of shield tunneling machines and comprises a scraper body, a positioning locking block is arranged on the scraper body, the positioning locking block is movably connected onto the scraper body, and the scraper body is quickly mounted on a scraper holder or quickly detached from the scraper holder through the positioning locking block. The hard alloy edge scraper can solve the problems that when an existing hard alloy edge scraper is used, the hard alloy edge scraper is mostly installed on the scraper holder through screws, so that the hard alloy edge scraper is inconvenient to install or detach and inconvenient to use. According to the hard alloy edge scraper, the scraper body can be rapidly installed on the scraper holder or rapidly detached from the scraper holder through the positioning locking block, so that the hard alloy edge scraper is convenient to install or detach and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of shield machine cutters, in particular to a hard alloy edge scraper for a shield machine. Background Art

[0002] A shield machine is a tunnel boring machine that uses the shield method. It is a special engineering machinery for tunnel excavation. Modern shield tunnel boring machines integrate optical, mechanical, electrical, hydraulic, sensor, and information technology. They have the functions of excavating and cutting soil, transporting soil ballast, assembling tunnel linings, measuring and guiding deviation correction, etc. Shield tunnel boring machines have been widely used in tunnel projects such as subways, railways, highways, municipal engineering, and hydropower. The main components of a shield tunnel boring machine are carbide edge scrapers, which are used to excavate the demonstration soil layer.

[0003] When the existing carbide edge scraper is used, the carbide edge scraper is usually installed on the blade holder by screws, which makes it inconvenient to install or disassemble the carbide edge scraper and inconvenient to use. Utility Model Content

[0004] The utility model aims to provide a hard alloy edge scraper for a shield machine. The blade body can be quickly installed on the blade seat or quickly removed from the blade seat through a positioning locking block, which makes the hard alloy edge scraper easy to install or disassemble and easy to use, and can solve the problems in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A hard alloy edge scraper for a shield machine comprises a cutter body. A positioning locking block is arranged on the cutter body. The positioning locking block is movably connected to the cutter body. The cutter body can be quickly installed on a cutter seat or quickly disassembled and removed from the cutter seat through the positioning locking block.

[0007] Preferably, a mounting groove for inserting the blade seat is provided at the end of the blade body, and a positioning groove for the positioning locking block to move is provided on the blade body, and the positioning locking block moves in the positioning groove and extends into the mounting groove.

[0008] Preferably, a drive motor is provided on the cutter body, the output shaft of the drive motor is connected to a first transmission screw, the first transmission screw is connected to a second transmission screw via a coupling, and the first transmission screw and the second transmission screw are both installed in the cutter body via bearings.

[0009] Preferably, the first transmission screw and the second transmission screw are both threadedly connected with a linkage plate, and the linkage plate is connected to a positioning locking block.

[0010] Preferably, the thread directions of the first transmission screw and the second transmission screw are opposite, so that the first transmission screw and the second transmission screw drive the two linkage plates to move towards or in opposite directions when rotating.

[0011] Preferably, a ball bearing is installed at the end of the linkage plate, and the ball bearing is attached to the inner wall of the knife body.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The knife body of the utility model can be quickly installed on the knife seat or quickly disassembled and removed from the knife seat through the positioning locking block, so that the carbide edge scraper can be easily installed or disassembled and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a hard alloy edge scraper for a shield machine of the utility model;

[0015] Figure 2 It is an exploded schematic diagram of a hard alloy edge scraper for a shield machine of the utility model;

[0016] Figure 3 It is a left-side cross-sectional view of the hard alloy edge scraper for shield machine of the utility model;

[0017] Figure 4 It is a right-side cross-sectional view of the hard alloy edge scraper for shield machine of the utility model;

[0018] Figure 5 This is a schematic diagram of disassembling the hard alloy edge scraper for the shield machine of the utility model;

[0019] Figure 6 It is a cross-sectional schematic diagram of a hard alloy edge scraper for a shield machine of the utility model.

[0020] In the figure: 1, knife body; 11, mounting groove; 12, positioning groove; 2, positioning locking block; 3, knife seat; 4, driving motor; 41, first transmission screw rod; 42, second transmission screw rod; 43, linkage plate; 44, ball bearing. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In order to solve the technical problem that the existing carbide edge scrapers are mostly installed on the blade holder by screws, which makes the carbide edge scrapers inconvenient to install or disassemble and inconvenient to use, please refer to Figure 1-Figure 6 , this embodiment provides the following technical solutions:

[0023] A hard alloy edge scraper for a shield machine comprises a cutter body 1, on which a positioning locking block 2 is arranged, and the positioning locking block 2 is movably connected to the cutter body 1. The cutter body 1 can be quickly installed on a cutter seat 3 or quickly disassembled and removed from the cutter seat 3 through the positioning locking block 2.

[0024] In this embodiment, as a preferred technical solution, a mounting groove 11 for inserting the blade seat 3 is provided at the end of the blade body 1, and a positioning groove 12 for the positioning locking block 2 to move is provided on the blade body 1. The positioning locking block 2 moves in the positioning groove 12 and extends into the mounting groove 11.

[0025] By adopting the above technical solution, the knife body 1 is installed on the knife seat 3, and the knife seat 3 is inserted into the installation groove 11 set at the end of the knife body 1. At this time, the positioning locking block 2 moves in the positioning groove 12, and the positioning locking block 2 moves into the knife seat 3, thereby fixing the knife body 1 on the knife seat 3.

[0026] In this embodiment, as a preferred technical solution, a drive motor 4 is provided on the cutter body 1, and the output shaft of the drive motor 4 is connected to the first transmission screw 41, and the first transmission screw 41 is connected to the second transmission screw 42 through a coupling, and the first transmission screw 41 and the second transmission screw 42 are both installed in the cutter body 1 through bearings.

[0027] By adopting the above technical solution, the drive motor 4 is started, and the drive motor 4 can drive the first transmission screw 41 to rotate. Since the first transmission screw 41 is connected to the second transmission screw 42 through a coupling, the first transmission screw 41 can drive the second transmission screw 42 to rotate during the rotation process.

[0028] In this embodiment, as a preferred technical solution, a linkage plate 43 is threadedly connected to the first transmission screw 41 and the second transmission screw 42 , and the linkage plate 43 is connected to the positioning locking block 2 .

[0029] It should be noted that the thread directions of the first transmission screw 41 and the second transmission screw 42 are opposite, so that when the first transmission screw 41 and the second transmission screw 42 rotate, they can drive the linkage plates 43 provided on the first transmission screw 41 and the second transmission screw 42 to move toward or in the opposite direction.

[0030] By adopting the above technical solution, when the first transmission screw 41 and the second transmission screw 42 rotate, they can drive the two linkage plates 43 to move toward or in the opposite direction, thereby causing the positioning locking block 2 to also move. When the positioning locking block 2 moves into the knife seat 3, the knife body 1 can be fixed on the knife seat 3. When the positioning locking block 2 is moved out of the knife seat 3, the knife body 1 can be disassembled and removed from the knife seat 3.

[0031] In this embodiment, as a preferred technical solution, a ball 44 is installed at the end of the linkage plate 43 , and the ball 44 is attached to the inner wall of the blade body 1 .

[0032] By adopting the above technical solution, the linkage plate 43 contacts the inner wall of the cutter body 1 through the balls 44, so that the linkage plate 43 can move more smoothly.

[0033] Working principle of the knife body 1 installed on the knife seat 3:

[0034] The cutter body 1 is installed on the cutter seat 3 so that the cutter seat 3 is inserted into the installation groove 11 set at the end of the cutter body 1. At this time, the drive motor 4 is started, and the drive motor 4 drives the first transmission screw 41 and the second transmission screw 42 to rotate. When the first transmission screw 41 and the second transmission screw 42 rotate, they drive the linkage plate 43 and the positioning locking block 2 to move toward the direction close to the cutter seat 3. When the positioning locking block 2 moves into the cutter seat 3, the cutter body 1 can be fixed on the cutter seat 3.

[0035] Working principle of removing the knife body 1 from the knife seat 3:

[0036] The driving motor 4 is started, and the driving motor 4 drives the first transmission screw 41 and the second transmission screw 42 to rotate in the opposite direction. When the first transmission screw 41 and the second transmission screw 42 rotate in the opposite direction, they drive the linkage plate 43 and the positioning locking block 2 to move in the direction away from the knife seat 3. When the positioning locking block 2 is moved out of the knife seat 3, the knife body 1 can be disassembled and removed from the knife seat 3.

[0037] Therefore, the cutter body 1 can be quickly installed on the cutter seat 3 or quickly removed from the cutter seat 3 through the positioning locking block 2, so that the carbide edge scraper can be easily installed or removed and is easy to use.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hard alloy edge scraper for a shield machine, comprising a cutter body (1), characterized in that: The knife body (1) is provided with a positioning locking block (2), and the positioning locking block (2) is movably connected to the knife body (1). The knife body (1) can be quickly installed on the knife seat (3) or quickly disassembled and removed from the knife seat (3) through the positioning locking block (2).

2. The hard alloy edge scraper for a shield machine according to claim 1, characterized in that: The end of the knife body (1) is provided with a mounting groove (11) for inserting the knife seat (3), and the knife body (1) is provided with a positioning groove (12) for the positioning locking block (2) to move, and the positioning locking block (2) moves in the positioning groove (12) and extends into the mounting groove (11).

3. The hard alloy edge scraper for a shield machine according to claim 2, characterized in that: The cutter body (1) is provided with a drive motor (4), the output shaft of the drive motor (4) is connected to a first transmission screw (41), the first transmission screw (41) is connected to a second transmission screw (42) via a coupling, and the first transmission screw (41) and the second transmission screw (42) are both mounted in the cutter body (1) via bearings.

4. The hard alloy edge scraper for a shield machine according to claim 3, characterized in that: The first transmission screw rod (41) and the second transmission screw rod (42) are both threadedly connected with a linkage plate (43), and the linkage plate (43) is connected to the positioning locking block (2).

5. The hard alloy edge scraper for a shield machine according to claim 4, characterized in that: The thread directions of the first transmission screw (41) and the second transmission screw (42) are opposite, so that the first transmission screw (41) and the second transmission screw (42) drive the two linkage plates (43) to move towards or in opposite directions when rotating.

6. The hard alloy edge scraper for a shield machine according to claim 5, characterized in that: A ball (44) is installed at the end of the linkage plate (43), and the ball (44) is attached to the inner wall of the knife body (1).

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