Automatic cutting head for roadheader

Abstract

The utility model relates to the technical field of fully-mechanized excavating machines, in particular to an automatic cutting head for a fully-mechanized excavating machine, which comprises a cutting head body, a plurality of cutting pick seats are fixedly connected onto the cutting head body in a spiral ascending manner, through holes are formed in the cutting pick seats, a plurality of mounting cavities are formed in the inner walls of the through holes at equal intervals, and the mounting cavities are communicated with the cutting pick seats. A plurality of mounting cavities are formed in the base, springs are fixedly connected to the interiors of the mounting cavities, fixing columns are fixedly connected to the springs, one ends of the fixing columns are located in the mounting cavities, the other ends of the fixing columns are connected with the cutting picks through connecting mechanisms, and the cutting picks are located in the through holes. According to the utility model, the cutting pick can be replaced conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of comprehensive excavation machines, in particular to an automatic cutting head for comprehensive excavation machines. Background Art

[0002] The tunnel boring machine, short for comprehensive mechanized tunnel boring machine, is a comprehensive mechanized equipment that integrates multiple functions such as tunneling, rock loading, coal transportation, and even support and road nailing. When in use, the existing automatic cutting head analyzes the cutting parameters and cutting posture of the tunnel boring machine through various sensors distributed in the cylinder, motor and other parts of the tunnel boring machine, realizes intelligent control of the cutting operation, eliminates the uncertain factors of manual control, and effectively ensures the cutting efficiency and tunnel forming quality. Since the cutting head is used for cutting, the cutting teeth are used for cutting, which easily causes the cutting teeth to wear, and the existing cutting teeth are generally fixedly connected, which is not convenient for replacing the cutting teeth after wear. Utility Model Content

[0003] The utility model aims to solve the defect in the prior art that it is inconvenient to replace the cutting teeth after being worn, and proposes an automatic cutting head for a comprehensive excavator.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An automatic cutting head for a comprehensive excavator is designed, comprising a cutting head body, a plurality of cutting tooth seats being spirally raised and fixedly connected to the cutting head body, a plurality of cutting tooth seats being each provided with a through hole, a plurality of mounting cavities being equidistantly disposed on the inner wall of the through hole, a plurality of springs being fixedly connected in the plurality of mounting cavities, a plurality of fixing columns being fixedly connected to the plurality of springs, one end of the fixing column being located in the mounting cavity, and the other end being connected to the cutting tooth via a connecting mechanism, and the cutting tooth being located in the through hole.

[0006] Preferably, the connection mechanism comprises a fixing hole, the fixing hole is opened on the pick, an inclined surface is provided on the fixing hole, a roller is fixedly connected to the fixing column, and the roller abuts against the inner wall of the fixing hole.

[0007] Preferably, a mounting seat is fixedly connected to the cutting head body, and a plurality of fixing holes are provided on the mounting seat at equal distances.

[0008] Preferably, the installation cavity is a cylindrical structure, and the fixing column abuts against the inner wall of the installation cavity.

[0009] Preferably, the spring is a stainless steel spring.

[0010] Preferably, the cutting tooth abuts against the inner wall of the through hole.

[0011] The automatic cutting head for a comprehensive excavator provided by the utility model has the beneficial effect that the cutting teeth are fixed by placing the fixing column in the fixing hole, and the cutting teeth can be replaced by making the fixing column detach from the fixing hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the automatic cutting head for the comprehensive excavator proposed by the utility model;

[0013] Figure 2 It is a sectional view of a three-dimensional view of a pick seat of an automatic cutting head for a fully mechanized excavator proposed by the utility model;

[0014] Figure 3 The utility model provides an automatic cutting head for a comprehensive excavator. Figure 2 A top view of

[0015] Figure 4 The utility model provides an automatic cutting head for a comprehensive excavator. Figure 3 Enlarged view of part A.

[0016] In the figure: 1, cutting head body; 2, mounting seat; 3, threaded hole; 4, pick seat; 5, pick; 6, through hole; 7, roller; 8, fixing column; 9, spring; 10, mounting cavity; 11, fixing hole. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Example 1

[0019] Reference Figure 1-4 The automatic cutting head for a comprehensive excavator includes a cutting head body 1, on which a plurality of pick seats 4 are spirally fixedly connected, a through hole 6 is opened on the plurality of pick seats 4, a plurality of mounting cavities 10 are opened at equal distances on the inner wall of the through hole 6, a spring 9 is fixedly connected in the plurality of mounting cavities 10, a fixing column 8 is fixedly connected to the plurality of springs 9, one end of the fixing column 8 is located in the mounting cavity 10, and the other end is connected to the pick 5 through a connecting mechanism, the pick 5 is located in the through hole 6, the fixing column 8 is placed in the fixing hole 11, so that the pick 5 is fixed, and the fixing column 8 is separated from the fixing hole 11 so that the pick 5 can be replaced.

[0020] The connecting mechanism includes a fixing hole 11, which is opened on the pick 5. An inclined surface is provided on the fixing hole 11. A roller 7 is fixedly connected to the fixing column 8, and the roller 7 abuts against the inner wall of the fixing hole 11. By abutting the pick 5 from the rear end of the through hole 6 and pushing the pick 5, the roller 7 abuts against the inclined surface, and the spring 9 is compressed. Under the guidance of the inclined surface, the fixing column 8 is disengaged from the fixing hole 11, so that the pick 5 can be disassembled and replaced. When cutting, the pick 5 will be supported by the fixing column 8, and the pick 5 can only be moved and disengaged by pushing it from the rear end of the pick 5.

[0021] Example 2

[0022] Reference Figure 2-4 As another preferred embodiment of the utility model, on the basis of embodiment 1, a mounting seat 2 is fixedly connected to the cutting head body 1, and a plurality of threaded holes 3 are equidistantly provided on the mounting seat 2. The cutting head is installed by bolts by using the mounting seat 2 and the threaded holes 3.

[0023] Example 3

[0024] Reference Figure 2-4 As another preferred embodiment of the utility model, on the basis of embodiment 1, the installation cavity 10 is cylindrical in structure, and the fixing column 8 abuts against the inner wall of the installation cavity 10, thereby avoiding the occurrence of gaps, particles entering the installation cavity 10, and causing the spring 9 to be unable to deform. The spring 9 is a stainless steel spring to avoid rust.

[0025] The pick 5 abuts against the inner wall of the through hole 6, which ensures the stability of the pick 5 when working.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic cutting head for a comprehensive excavator, comprising a cutting head body (1), characterized in that: A plurality of pick seats (4) are spirally fixedly connected to the cutting head body (1), each of the plurality of pick seats (4) is provided with a through hole (6), a plurality of mounting cavities (10) are equidistantly provided on the inner wall of the through hole (6), a spring (9) is fixedly connected to each of the plurality of mounting cavities (10), a fixing column (8) is fixedly connected to each of the plurality of springs (9), one end of the fixing column (8) is located in the mounting cavity (10), and the other end is connected to the pick (5) via a connecting mechanism, and the pick (5) is located in the through hole (6).

2. The automatic cutting head for a comprehensive excavator according to claim 1, characterized in that: The connection mechanism comprises a fixing hole (11), the fixing hole (11) is opened on the pick (5), an inclined surface is provided on the fixing hole (11), a roller (7) is fixedly connected to the fixing column (8), and the roller (7) abuts against the inner wall of the fixing hole (11).

3. The automatic cutting head for a comprehensive excavator according to claim 1, characterized in that: A mounting seat (2) is fixedly connected to the cutting head body (1), and a plurality of threaded holes (3) are provided on the mounting seat (2) at equal distances.

4. The automatic cutting head for a comprehensive excavator according to any one of claims 1 to 3, characterized in that: The installation cavity (10) is in a cylindrical structure, and the fixing column (8) abuts against the inner wall of the installation cavity (10).

5. The automatic cutting head for a comprehensive excavator according to claim 4, characterized in that: The spring (9) is a stainless steel spring.

6. The automatic cutting head for a comprehensive excavator according to claim 1, characterized in that: The cutting teeth (5) abut against the inner wall of the through hole (6).

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