Tunneling device of tunnel boring machine

Abstract

The utility model provides a tunneling device of a roadway tunneling machine, which relates to the technical field of tunneling machines and comprises a main body mechanism, a protection mechanism is arranged on the inner wall of the main body mechanism, the main body mechanism comprises a drill bit, a hollow pipe is arranged on the inner wall of the drill bit, and the inner wall of the drill bit is fixed with the outer side of the hollow pipe in a penetrating manner. And an inclined rod is arranged on the inner wall of the hollow pipe. The moving block can exert external force on one end of the inclined rod along with movement and enable the other end of the inclined rod to tilt up, meanwhile, the middle position plate can be lifted, in the process, the conical block can exert external force on the steel knife under the action of the lead screw, and therefore after the middle position plate is lifted, the steel knife on the inner wall of the middle position plate does not leak out, and the steel knife cannot be damaged. The conical block is used for ejecting the steel knife out of the middle plate and providing a stable supporting point for the steel knife, and after the steel knife is exposed, the steel knife can predict surrounding ore in advance in the tunneling process, so that a worker can adjust a drill bit according to feedback.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel boring machines, in particular to a tunnel boring device of a tunnel boring machine. Background Art

[0002] A roadheader is a mechanical device used to dig tunnels and mines in underground projects. It usually uses tools such as a cutter head or a drill bit to dig a passage in underground rock or soil. This machine is widely used in engineering construction and mining fields to improve work efficiency and safety.

[0003] In the existing technology, with the continuous development of mining and underground engineering construction technology, the requirements for tunneling equipment are also constantly increasing. However, during the use of tunneling equipment, due to the limitations of the equipment, it is impossible to judge the characteristics of the ore in a timely manner. As a result, the staff cannot get corresponding feedback and it is difficult to flexibly adjust the drill bit tunneling parameters according to the hardness and distribution of the ore. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art and provide a tunnel boring device for a tunnel boring machine.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tunneling device of a tunnel boring machine, comprising: a main body mechanism, the inner wall of the main body mechanism is provided with a protective mechanism, the main body mechanism comprises a drill bit, the inner wall of the drill bit is provided with a hollow tube, the inner wall of the drill bit is penetrated and fixed to the outer side of the hollow tube, the inner wall of the hollow tube is provided with an inclined rod, the inner wall of the hollow tube is movably connected to one end of the inclined rod, the other end of the inclined rod is provided with a middle plate, the other end of the inclined rod is movably connected to one end of the middle plate, the inner wall of the middle plate is provided with a steel knife, the inner wall of the middle plate is penetrated and connected to one end of the steel knife.

[0006] As a preferred embodiment, the protective mechanism includes a cavity, an inner wall of the cavity is provided with a limiting plate, the inner wall of the cavity is connected through one end of the limiting plate, a guard ring is provided at one end of the limiting plate, one end of the limiting plate is vertically clamped with the top side of the guard ring, a back plate is provided on the outer side of the guard ring, and the outer side of the guard ring is connected through the inner wall of the back plate.

[0007] As a preferred embodiment, a motor is provided at one end of the drill bit, and one end of the drill bit is fixedly connected to one end of the motor. A screw is provided at the output end of the motor, and the output end of the motor is fixedly connected to one end of the screw.

[0008] As a preferred embodiment, the other end of the screw rod is rotatably connected to the inner wall of the empty tube, a cone block is provided on the outer side of the screw rod, and the outer side of the screw rod is threadedly connected to the inner wall of the cone block.

[0009] As a preferred embodiment, the outer side of the cone block is in sliding contact with the bottom end of the steel knife, the inner wall of the steel knife is provided with an inner plate, and the inner wall of the steel knife is in sliding contact with one side of the inner plate.

[0010] As a preferred implementation, one end of the inner plate is fixedly connected to the inner wall of the empty tube.

[0011] As a preferred embodiment, a moving block is arranged on the outer side of the screw rod, the outer side of the screw rod is threadedly connected to the inner wall of the moving block, and one end of the moving block is in contact with one end of the inclined rod.

[0012] As a preferred implementation, one end of the drill bit is fixedly connected to one end of the back plate.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. Start the motor to displace the moving block on the screw rod. As the moving block moves, it will exert external force on one end of the inclined rod and tilt the other end. At the same time, the center plate will also be raised in height. During this process, the cone block will also exert external force on the steel cutter under the action of the screw rod. Therefore, when the center plate is lifted, the steel cutter on its inner wall has not leaked out. The function of the cone block is to push the steel cutter out of the center plate and provide a stable support point for it. When the steel cutter is exposed, the steel cutter can predict the surrounding ore in advance during the excavation process, so that the staff can adjust the drill bit according to the feedback.

[0015] 2. Pushing the guard ring can effectively cover and protect the tool part of the drill bit, which can avoid possible damage to the drill bit due to exposure to the external environment or damage to the tool caused by collision with external objects, and can reduce the risk of injury caused by accidental contact with the tool part of the drill bit in the workplace. Especially when the drill bit is not in use, covering the tool part can reduce the possibility of injury to workers and improve the safety of the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a structural schematic diagram of a tunnel boring device of a tunnel boring machine.

[0017] Figure 2 The utility model provides a schematic side sectional structure diagram of a main mechanism component of a tunnel boring device of a tunnel boring machine.

[0018] Figure 3The utility model provides an enlarged structural schematic diagram of a main mechanism component of a tunnel boring device of a tunnel boring machine.

[0019] Figure 4 The utility model provides a side structural schematic diagram of a protection mechanism and a main mechanism assembly of a tunnel boring device of a tunnel boring machine.

[0020] Legend:

[0021] 1. Main body; 11. Drill bit; 12. Motor; 13. Screw; 14. Moving block; 15. Cone block; 16. Empty pipe; 17. Inclined rod; 18. Middle plate; 19. Steel knife; 110. Inner plate; 111. Back plate;

[0022] 2. Protective mechanism; 21. Cavity; 22. Limiting plate; 23. Guard ring. DETAILED DESCRIPTION

[0023] 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.

[0024] Example 1

[0025] like Figure 1-Figure 4As shown, the utility model provides a technical solution: a tunneling device of a tunnel boring machine, comprising: a main body mechanism 1, the inner wall of the main body mechanism 1 is provided with a protective mechanism 2, the main body mechanism 1 comprises a drill bit 11, the inner wall of the drill bit 11 is provided with a hollow tube 16, the inner wall of the drill bit 11 and the outer side of the hollow tube 16 are penetrated and fixed, the inner wall of the hollow tube 16 is provided with an inclined rod 17, the inner wall of the hollow tube 16 is movably connected to one end of the inclined rod 17, the other end of the inclined rod 17 is provided with a middle plate 18, the other end of the inclined rod 17 is movably connected to one end of the middle plate 18, the inner wall of the middle plate 18 is provided with a steel knife 19, the inner wall of the middle plate 18 is penetrated and connected to one end of the steel knife 19, one end of the drill bit 11 is provided with a motor 12, one end of the drill bit 11 is fixedly connected to one end of the motor 12 A screw rod 13 is provided at the output end of the motor 12, and the output end of the motor 12 is fixedly connected to one end of the screw rod 13, and the other end of the screw rod 13 is rotatably connected to the inner wall of the empty tube 16. A cone block 15 is provided on the outer side of the screw rod 13, and the outer side of the screw rod 13 is threadedly connected to the inner wall of the cone block 15. The outer side of the cone block 15 is in sliding contact with the bottom end of the steel knife 19, and the inner wall of the steel knife 19 is provided with an inner plate 110. The inner wall of the steel knife 19 is in sliding contact with one side of the inner plate 110, and one end of the inner plate 110 is fixedly connected to the inner wall of the empty tube 16. A moving block 14 is provided on the outer side of the screw rod 13, and the outer side of the screw rod 13 is threadedly connected to the inner wall of the moving block 14, and one end of the moving block 14 is in contact with one end of the inclined rod 17, and one end of the drill bit 11 is fixedly connected to one end of the back plate 111.

[0026] In this embodiment, when the excavation device of this type of tunnel boring machine is in use, the motor 12 is started to displace the moving block 14 on the screw rod 13, and the moving block 14 will cause an external force on one end of the inclined rod 17 as it moves, and cause the other end of the inclined rod 17 to tilt, and at the same time the center plate 18 will also be lifted in height. In this process, the cone block 15 will also cause an external force on the steel knife 19 under the action of the screw rod 13. Therefore, when the center plate 18 is lifted, the steel knife 19 on its inner wall has not leaked out. The function of the cone block 15 is to push the steel knife 19 out of the center plate 18 and provide a stable support point for it. When the steel knife 19 leaks out, the steel knife 19 can predict the surrounding ore in advance during the excavation process, so that the staff can adjust the drill bit 11 according to the feedback, adjust the parameters such as the rotation speed, feed speed and position of the drill bit 11 to adapt to the current ore characteristics, thereby improving the excavation efficiency and safety.

[0027] Secondly, the inner plate 110 installed on the inner wall of the steel cutter 19 can limit the leakage of the steel cutter 19 to avoid excessive leakage from the inner wall of the empty pipe 16, which would result in the inability to restore the original path when retreating. Therefore, the steel cutter 19 can be kept working within the predetermined excavation depth range to avoid the excavation tool from affecting the accuracy and stability of the excavation path due to excessive leakage.

[0028] Example 2

[0029] like Figure 1-Figure 4 As shown, the protective mechanism 2 includes a cavity 21, an inner wall of the cavity 21 is provided with a limiting plate 22, the inner wall of the cavity 21 is connected through one end of the limiting plate 22, a protective ring 23 is provided at one end of the limiting plate 22, one end of the limiting plate 22 is vertically clamped with the top side of the protective ring 23, a back plate 111 is provided on the outer side of the protective ring 23, and the outer side of the protective ring 23 is connected through the inner wall of the back plate 111.

[0030] In this embodiment, when the drill bit 11 is not in use, the guard ring 23 on the back plate 111 is pushed into place, so that the tool part of the drill bit 11 can be effectively covered and protected. This can avoid possible damage caused by the drill bit 11 being exposed to the external environment or tool damage caused by collision with external objects. The protective measures help to extend the service life of the drill bit 11, reduce the frequency of replacement and maintenance, and reduce the risk of injury caused by accidental contact with the tool part of the drill bit 11 in the workplace. In particular, when the drill bit 11 is not in use, covering the tool part can reduce the possibility of injury to the staff and improve the safety of the working environment. Finally, the limit plate 22 is inserted into the inner wall of the guard ring 23 to keep it in the position after moving, ensuring the stability and reliability of the guard ring 23.

[0031] Working principle:

[0032] like Figure 1-Figure 4 As shown, the motor 12 is started, so that the moving block 14 on the screw rod 13 is displaced, and the moving block 14 will cause external force to one end of the inclined rod 17 as it moves, and make the other end tilt up, and at the same time the center plate 18 will also be raised in height. In this process, the cone block 15 will also cause external force to the steel knife 19 under the action of the screw rod 13. Therefore, when the center plate 18 is lifted, the steel knife 19 on its inner wall has not leaked out. The function of the cone block 15 is to push the steel knife 19 out of the center plate 18 and provide a stable support point for it. When the steel knife 19 leaks out, the steel knife 19 can predict the surrounding ore in advance during the excavation process, so that the staff can adjust the drill bit 11 according to the feedback;

[0033] Pushing the guard ring 23 can effectively cover and protect the tool part of the drill bit 11, thereby avoiding possible damage caused by exposure of the drill bit 11 to the external environment or damage to the tool caused by collision with external objects, and can reduce the risk of injury caused by accidental contact with the tool part of the drill bit 11 in the workplace. Especially when the drill bit 11 is not in use, covering the tool part can reduce the possibility of injury to the staff and improve the safety of the working environment.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A tunnel boring device for a road boring machine, characterized in that: include: A main body mechanism (1), wherein the inner wall of the main body mechanism (1) is provided with a protective mechanism (2), wherein the main body mechanism (1) comprises a drill bit (11), wherein the inner wall of the drill bit (11) is provided with a hollow tube (16), wherein the inner wall of the drill bit (11) is fixedly penetrated through the outer side of the hollow tube (16), wherein the inner wall of the hollow tube (16) is provided with an inclined rod (17), wherein the inner wall of the hollow tube (16) is movably connected to one end of the inclined rod (17), wherein the other end of the inclined rod (17) is provided with a middle plate (18), wherein the other end of the inclined rod (17) is movably connected to one end of the middle plate (18), wherein the inner wall of the middle plate (18) is provided with a steel knife (19), wherein the inner wall of the middle plate (18) is penetratedly connected to one end of the steel knife (19).

2. The excavation device of a tunnel boring machine according to claim 1, characterized in that: The protective mechanism (2) comprises a cavity (21), the inner wall of the cavity (21) is provided with a limiting plate (22), the inner wall of the cavity (21) is connected through one end of the limiting plate (22), a protective ring (23) is provided at one end of the limiting plate (22), one end of the limiting plate (22) is vertically clamped with the top side of the protective ring (23), a back plate (111) is provided on the outer side of the protective ring (23), and the outer side of the protective ring (23) is connected through the inner wall of the back plate (111).

3. The excavation device of a tunnel boring machine according to claim 2, characterized in that: A motor (12) is provided at one end of the drill bit (11), and one end of the drill bit (11) is fixedly connected to one end of the motor (12); a screw rod (13) is provided at the output end of the motor (12), and the output end of the motor (12) is fixedly connected to one end of the screw rod (13).

4. The excavation device of a tunnel boring machine according to claim 3, characterized in that: The other end of the screw rod (13) is rotatably connected to the inner wall of the hollow tube (16), a cone block (15) is arranged on the outer side of the screw rod (13), and the outer side of the screw rod (13) is threadedly connected to the inner wall of the cone block (15).

5. The excavation device of a tunnel boring machine according to claim 4, characterized in that: The outer side of the cone block (15) is in sliding contact with the bottom end of the steel knife (19), the inner wall of the steel knife (19) is provided with an inner plate (110), and the inner wall of the steel knife (19) is in sliding contact with one side of the inner plate (110).

6. The excavation device of a tunnel boring machine according to claim 5, characterized in that: One end of the inner plate (110) is fixedly connected to the inner wall of the empty tube (16).

7. The excavation device of a tunnel boring machine according to claim 3, characterized in that: A moving block (14) is arranged on the outer side of the screw rod (13), the outer side of the screw rod (13) is threadedly connected to the inner wall of the moving block (14), and one end of the moving block (14) is in contact with one end of the inclined rod (17).

8. The excavation device of a tunnel boring machine according to claim 1, characterized in that: One end of the drill bit (11) is fixedly connected to one end of the back plate (111).

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