Cantilever type heading machine

Abstract

The utility model relates to the technical field of cantilever type heading machines, in particular to a cantilever type heading machine which comprises a machine body, an outer arm, an inner arm and a cutting head, a mounting plate is fixedly connected to the outer wall of the outer arm, two dust suction ports are fixedly connected to the inner wall of the mounting plate, a dust guide pipe is arranged at the upper end of the machine body, dust enters through the two dust suction ports, and the cutting head is arranged on the machine body. Further, the dust enters the connecting pipe and the dust suction pipe in sequence through the dust guide pipe and is finally discharged from the flaring at the tail end of the dust suction pipe, dust falling is carried out in cooperation with external dust falling equipment, the equipment removes a large amount of dust generated by the cutting head in the operation process, the view of operators is clear, the operation precision is improved, and the operation efficiency is improved. And meanwhile, the two high-pressure fans are synchronously started in the dust collection process, airflow is sprayed out through the multiple air spraying openings, the multiple rows of air spraying openings spray air to form a high-pressure air curtain, the dustproof isolation effect can be achieved, raised dust is prevented from being diffused to the surrounding environment, and the dust collection effect is effectively improved in cooperation with dust collection of the dust collection openings.

Description

Technical Field

[0001] The utility model relates to the technical field of cantilever type tunneling machines, in particular to a cantilever type tunneling machine. Background Art

[0002] The cantilever roadheader is a combined unit that can realize cutting, loading and transportation, self-propelled and spray dust removal. It is mainly used for tunneling. Its main frame includes a main body component and a cutting head mounted on the main body component for tunneling. The cutting head is driven by a cutting head motor.

[0003] During the actual operation of the cantilever roadheader, such as during tunnel excavation, a large amount of dust is often generated, specifically, a large amount of dust is generated during the process of the cutter head destroying the rock layer;

[0004] The cantilever tunnel boring machine disclosed in the prior art does not involve corresponding dust removal equipment, resulting in the inability to solve the dust during the tunneling operation. The large amount of dust generated during the operation is bound to affect the operator's line of sight, and it is easy to deviate from the preset trajectory during the tunneling operation. Utility Model Content

[0005] The utility model aims to provide a cantilever type tunneling machine, which has the characteristics of making the vision of the operator clearer, improving the precision of the operation, and improving the operation efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cantilever tunneling machine, comprising a machine body, an outer arm, an inner arm and a cutting head, the outer arm is installed on one side of the machine body, the inner arm is installed at the other end of the outer arm, and the cutting head is installed at the other end of the inner arm. The outer wall of the outer arm is fixedly connected with a mounting plate, and the inner wall of the mounting plate is fixedly connected with two dust suction ports, a dust guide pipe is provided at the upper end of the machine body, one end of the dust guide pipe is connected with a connecting pipe, and the two dust suction ports are connected with the connecting pipe through the dust guide pipe, and the outer wall periphery of the mounting plate is fixedly connected with an air collecting plate, and the side walls of the plurality of air collecting plates are provided with air nozzles.

[0007] In order to facilitate the suction of dust, as a preferred cantilever tunneling machine of the utility model, an axial flow fan is arranged on the inner side of the connecting pipe.

[0008] In order to blow air to form a wind curtain, as a preferred cantilever tunneling machine of the utility model, high-pressure fans are installed on the outer walls of the wind collecting plates on the upper and lower sides, and the two high-pressure fans are connected to the inside of the wind collecting plates through a pipeline.

[0009] For air circulation, as a preferred cantilever tunneling machine of the utility model, the interiors of the plurality of air collecting plates are interconnected.

[0010] In order to protect the high-pressure fans, as a preferred cantilever tunneling machine of the utility model, protective covers are provided on the outer sides of the two high-pressure fans.

[0011] In order to guide out dust, as a preferred cantilever tunneling machine of the utility model, one end of the dust guide pipe away from the connecting pipe is fixedly connected with a flared opening.

[0012] In order to filter out large particles of debris, as a preferred embodiment of a cantilever-type tunneling machine of the utility model, the outer wall of the dust suction port is detachably connected with a filter screen.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] During the excavation operation of the machine body, a large amount of dust generated by the cutting head causes unclear vision. At this time, the axial flow fan is turned on, and the dust enters through the two dust suction ports, and further enters the connecting pipe and the dust suction pipe in turn through the dust guide pipe, and is finally discharged from the expansion port at the tail end of the dust suction pipe. In conjunction with external dust reduction equipment, dust reduction is carried out. The equipment removes a large amount of dust generated by the cutting head during the operation, so that the operator's field of vision is clearer, the precision of the operation is improved, and the operation efficiency is improved. At the same time, two high-pressure fans are started synchronously during the dust removal process, and the air flow is ejected through multiple air nozzles. Multiple rows of air nozzles form a high-pressure wind curtain, which can play a role in dust isolation and prevent dust from spreading to the surrounding environment. In conjunction with the dust suction port, dust removal can effectively improve the dust removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the overall cross-sectional structural diagram of the utility model;

[0016] Figure 2 This is the overall external structure diagram of the utility model;

[0017] Figure 3 It is a partial three-dimensional structural diagram of the utility model;

[0018] Figure 4 This is a side structural diagram of the dust suction port of the utility model.

[0019] In the figure: 1. machine body; 2. outer arm; 3. inner arm; 4. cutting head; 5. mounting plate; 6. air collecting plate; 7. dust suction port; 8. dust guide pipe; 9. connecting pipe; 10. dust suction pipe; 11. air nozzle; 12. axial flow fan; 13. high pressure fan; 14. protective cover; 15. expansion port; 16. filter. DETAILED DESCRIPTION

[0020] See also Figures 1 to 4A cantilever tunneling machine comprises a machine body 1, an outer arm 2, an inner arm 3 and a cutting head 4. The outer arm 2 is installed on one side of the machine body 1, the inner arm 3 is installed on the other end of the outer arm 2, and the cutting head 4 is installed on the other end of the inner arm 3. The outer wall of the outer arm 2 is fixedly connected with a mounting plate 5, and the inner wall of the mounting plate 5 is fixedly connected with two dust suction ports 7. A dust guide pipe 8 is provided at the upper end of the machine body 1, and one end of the dust guide pipe 8 is connected with a connecting pipe 9. The two dust suction ports 7 are connected with the connecting pipe 9 through a dust suction pipe 10. The outer wall periphery of the mounting plate 5 is fixedly connected with an air collecting plate 6, and the side walls of the plurality of air collecting plates 6 are provided with air nozzles 11.

[0021] In this embodiment: during the excavation operation of the machine body 1, a large amount of dust generated by the operation of the cutting head 4 causes unclear vision. At this time, the axial flow fan 12 is turned on, and dust enters through the two dust suction ports 7, and further enters the connecting pipe 9 and the dust suction pipe 10 in turn through the dust guide pipe 8, and is finally discharged from the expansion port 15 at the tail end of the dust suction pipe 10. Dust reduction is carried out in cooperation with external dust reduction equipment. The equipment removes a large amount of dust generated by the cutting head 4 during the operation, so that the operator's field of vision is clearer, the precision of the operation is improved, and the operation efficiency is improved. At the same time, two high-pressure fans 13 are started synchronously during the dust removal process, and the air flow is ejected through multiple air nozzles 11. Multiple rows of air nozzles 11 spray air to form a high-pressure wind curtain, which can play a role in dust isolation and prevent dust from spreading to the surrounding environment. The dust removal effect is effectively improved in cooperation with the dust suction port 7.

[0022] As a technical optimization solution of the present invention, an axial flow fan 12 is arranged inside the connecting pipe 9 .

[0023] In this embodiment, an axial flow fan 12 is arranged inside the connecting pipe 9 to facilitate dust collection and dust guiding.

[0024] As a technical optimization solution of the utility model, high-pressure fans 13 are installed on the outer walls of the wind collecting plates 6 at the upper and lower sides, and the two high-pressure fans 13 are connected to the inside of the wind collecting plates 6 through pipelines.

[0025] In this embodiment, the two high-pressure fans 13 are connected to the interior of the air collecting plate 6 through a pipeline, so that the multiple air outlets 11 can spray air synchronously.

[0026] As a technical optimization solution of the present invention, the interiors of the plurality of air collecting plates 6 are interconnected.

[0027] In this embodiment, the interiors of the plurality of air collecting plates 6 are interconnected, so that the plurality of air ejection ports 11 can eject air synchronously.

[0028] As a technical optimization solution of the present invention, protective covers 14 are provided on the outer sides of the two high-pressure fans 13 .

[0029] In this embodiment, a protective cover 14 is provided on the outer sides of the two high-pressure fans 13 to protect the high-pressure fans 13 .

[0030] As a technical optimization solution of the present utility model, one end of the dust guide pipe 8 away from the connecting pipe 9 is fixedly connected with a flared opening 15 .

[0031] In this embodiment: the end of the dust guide pipe 8 away from the connecting pipe 9 is fixedly connected with a flared opening 15, which is convenient for guiding out dust and cooperating with external dust reduction equipment to reduce dust.

[0032] As a technical optimization solution of the present invention, the outer wall of the dust suction port 7 is detachably connected with a filter screen 16 .

[0033] In this embodiment, the outer wall of the dust suction port 7 is detachably connected with a filter screen 16 , so as to filter out larger impurities and dirt to avoid clogging of the dust suction pipe 10 .

[0034] Working principle: During the excavation operation of the machine body 1, a large amount of dust generated by the operation of the cutting head 4 causes unclear vision. At this time, the axial flow fan 12 is turned on, and the dust enters through the two dust suction ports 7, and further enters the connecting pipe 9 and the dust suction pipe 10 in turn through the dust guide pipe 8, and is finally discharged from the expansion port 15 at the tail end of the dust suction pipe 10. Dust reduction is carried out in conjunction with external dust reduction equipment. The equipment removes a large amount of dust generated by the cutting head 4 during the operation, so that the operator's field of vision is clearer, the precision of the operation is improved, and the operation efficiency is improved. At the same time, two high-pressure fans 13 are started synchronously during the dust removal process, and the air flow is ejected through multiple air nozzles 11. Multiple rows of air nozzles 11 spray air to form a high-pressure wind curtain, which can play a role in dust isolation and prevent dust from spreading to the surrounding environment. The dust removal effect is effectively improved in conjunction with the dust suction port 7.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cantilever type tunnel boring machine, comprising a machine body (1), an outer arm (2), an inner arm (3) and a cutting head (4), wherein the outer arm (2) is mounted on one side of the machine body (1), the inner arm (3) is mounted on the other end of the outer arm (2), and the cutting head (4) is mounted on the other end of the inner arm (3), characterized in that: The outer wall of the outer arm (2) is fixedly connected to a mounting plate (5), the inner wall of the mounting plate (5) is fixedly connected to two dust suction ports (7), the upper end of the machine body (1) is provided with a dust guide pipe (8), one end of the dust guide pipe (8) is connected to a connecting pipe (9), the two dust suction ports (7) are connected to the connecting pipe (9) via a dust guide pipe (10), the outer wall periphery of the mounting plate (5) is fixedly connected to an air collecting plate (6), and the side walls of the plurality of air collecting plates (6) are provided with air ejection ports (11).

2. A cantilever type tunnel boring machine according to claim 1, characterized in that: An axial flow fan (12) is arranged inside the connecting pipe (9).

3. The cantilever type tunnel boring machine according to claim 1, characterized in that: High-pressure fans (13) are installed on the outer walls of the wind collecting plates (6) located at the upper and lower sides, and the two high-pressure fans (13) are connected to the inside of the wind collecting plates (6) through a pipeline.

4. The cantilever type tunnel boring machine according to claim 1, characterized in that: The interiors of the plurality of air collecting plates (6) are interconnected.

5. The cantilever type tunnel boring machine according to claim 3, characterized in that: Protective covers (14) are provided on the outer sides of the two high-pressure fans (13).

6. The cantilever type tunnel boring machine according to claim 1, characterized in that: One end of the dust guide pipe (8) away from the connecting pipe (9) is fixedly connected with a flared opening (15).

7. The cantilever type tunnel boring machine according to claim 1, characterized in that: The outer wall of the dust suction port (7) is detachably connected with a filter screen (16).

Images