An external spraying system for a horizontal shaft tunneling machine

Abstract

This application discloses an external spraying system for a horizontal shaft tunneling machine, relating to the field of tunneling machines. It includes a first water flow pipe and a second water flow pipe, with an upper spray group, a lower left spray group, a lower right spray group, and a front spray group connected to the first and second water flow pipes. The upper spray group is fixed to the reducer housing by a second fastener. The lower left and lower right spray groups are respectively connected to the upper spray group by first fasteners. The upper, lower left, and lower right spray groups are fixed to the cantilever frame by a third fastener. The front spray group is fixed to the reducer housing by a fourth fastener. Motor cooling water nozzles are arranged on the upper spray group. This application optimizes the structure of the horizontal shaft tunneling machine spraying system, suppressing dust generated during horizontal shaft tunneling and operation. The spray device has multiple nozzles, a large water output, convenient installation, a welded main structure, high rigidity, and high reliability.

Description

Technical Field

[0001] This application relates to the field of tunneling machines, and more particularly to an external spraying system for a horizontal shaft tunneling machine. Background Technology

[0002] The working mechanism of a tunneling machine mainly consists of a traveling mechanism, a working mechanism, a loading mechanism, and a transfer mechanism. As the traveling mechanism advances, the cutting head in the working mechanism continuously breaks the rock and removes the broken rock. It has advantages such as safety, high efficiency, and good tunnel quality, but it is expensive, complex in structure, and experiences significant wear and tear.

[0003] During operation, horizontal shaft tunneling machines generate fine coal dust and rock dust. The dust particles generated at the working face are in a suspended state and can remain dispersed within the tunneling working face for a long time. The presence of a large amount of dust not only seriously pollutes the working environment and endangers the health of the workers, but also reduces the visibility of the working face and accelerates equipment wear. Utility Model Content

[0004] To address the issues of fine coal dust and rock dust generated during the operation of a horizontal shaft tunneling machine, where dust particles are suspended at the working face, posing a health hazard to workers and reducing visibility at the working face, this application provides an external spraying system for a horizontal shaft tunneling machine.

[0005] The external spraying system for a horizontal shaft tunneling machine provided in this application adopts the following technical solution:

[0006] It includes a first water flow pipe and a second water flow pipe. The first and second water flow pipes are connected to an upper spray group, a lower left spray group, a lower right spray group, and a front spray group. The upper spray group is fixed to the reducer housing by a second fastener. The lower left spray group and the lower right spray group are respectively connected to the upper spray group by a first fastener. The upper spray group, the lower left spray group, and the lower right spray group are fixed to the cantilever frame by a third fastener. The front spray group is fixed to the reducer housing by a fourth fastener. The motor cooling water nozzles are arranged on the upper spray group from left to right.

[0007] Preferably, the upper spray assembly includes an upper spray frame, which is a welded structure. The upper spray frame has several nozzle mounting holes, and atomizing nozzles are installed inside the nozzle mounting holes.

[0008] Preferably, lifting rings are welded to both ends of the upper spray frame, a connecting plate for connecting with the lower frame is welded to the bottom of the upper spray frame, a protective cover connecting plate is also installed on the upper spray frame, sprinkler mounting plates are installed on the left and right sides of the upper spray frame, a reducer housing mounting column is installed in the lower middle part of the upper spray frame, and a cantilever frame mounting column is also installed on the upper spray frame.

[0009] Preferably, the lower left spray group and the lower right spray group include a left spray frame and a right spray frame, and nozzles are installed on the left spray frame and the right spray frame, and the nozzles spray out a first water jet.

[0010] Preferably, a first connector protective cover and a second connector protective cover are respectively installed at one end of the left spray frame and the right spray frame, an upper frame connecting plate is installed on the side of the left spray frame and the right spray frame, and a cantilever frame mounting column is installed on one side of one end of the left spray frame and the right spray frame.

[0011] Preferably, the front spray assembly includes an upper guard plate with front spray water chambers at both ends of the upper guard plate. The upper guard plate is also equipped with multiple nozzle mounting seats, on which nozzles are installed. The nozzles can spray out a second water jet. A reducer housing mounting plate is installed on the side of the upper guard plate.

[0012] Preferably, the front spray water chamber includes a front chamber and a water inlet connector, the front chamber is connected to a left chamber through a left chamber connecting pipe, and the front chamber is connected to a right chamber through a right chamber connecting pipe.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] 1. This application uses the upper spray frame of the upper spray group as a welded structure, with several nozzle mounting holes machined at a preset angle and atomizing nozzles installed to ensure that the water jet sprays at the preset angle, completes the dust suppression task of the cutting head envelope, optimizes the structure of the horizontal shaft tunneling machine spray system, suppresses the dust generated during horizontal shaft tunneling and operation, has multiple nozzles, large water output, convenient structure installation, welded main structure, high rigidity, and high reliability;

[0015] 2. This application uses a symmetrical arrangement of a lower left spray group and a lower right spray group. The left and right spray frame bodies are welded structures, with nozzle mounting holes machined at preset angles and nozzles installed to ensure that the water jet is sprayed at the preset angle, thus completing the dust suppression task of the cutting head envelope. The left and right spray frame bodies are connected to the upper spray frame with fasteners and installed with high-strength bolts to the cantilever frame, which facilitates installation and use and is suitable for installation on a large number of tunneling machines. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an external spraying system for a horizontal shaft tunneling machine according to an embodiment of this application;

[0017] Figure 2 This is a schematic diagram illustrating the main structure of the upper spray assembly in the embodiments of this application;

[0018] Figure 3This is a schematic diagram illustrating the structure of the lower left spray group and the lower right spray group, which are the main components of this application embodiment.

[0019] Figure 4 This is a schematic diagram illustrating the main structure of the front spray assembly in the embodiments of this application;

[0020] Figure 5 This is a schematic diagram illustrating the main structure of the front spray group in the embodiments of this application;

[0021] Reference numerals: 1. First water flow pipe; 2. Lower left spray group; 201. Left spray frame; 202. Nozzle; 203. First connector protective cover; 204. Upper frame connecting plate; 205. Second cantilever frame mounting column; 206. Second connector protective cover; 207. Right spray frame; 208. First water jet; 3. First fastener; 4. Front spray group; 301. Upper guard plate; 302. Front spray water chamber; 303. Nozzle mounting seat; 304. Second water jet; 305. Reducer housing mounting plate; 306. Front nozzle; 401. Front chamber; 402. Left chamber connection 403. Connecting pipe; 404. Left cavity; 405. Water inlet connector; 406. Right cavity connecting pipe; 5. Second fastener; 6. Reducer housing; 7. Upper spray assembly; 701. Lifting ring; 702. Upper spray frame; 703. Lower frame connecting plate; 704. Atomizing nozzle; 705. Protective cover connecting plate; 706. Reducer housing mounting column; 707. First cantilever frame mounting column; 708. Sprinkler mounting plate; 8. Cantilever frame; 9. Motor cooling sprinkler; 10. Third fastener; 11. Lower right spray assembly; 12. Second water flow pipe; 13. Fourth fastener. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0023] This application discloses an external spraying system for a horizontal shaft tunneling machine, including a first water flow pipe 1 and a second water flow pipe 12. An upper spray group 7, a lower left spray group 2, a lower right spray group 11, and a front spray group 4 are connected to the first water flow pipe 1 and the second water flow pipe 12. The upper spray group 7 is fixed to the reducer housing 6 by a second fastener 5. The lower left spray group 2 and the lower right spray group 11 are respectively connected to the upper spray group 7 by a first fastener 3. The upper spray group 7, the lower left spray group 2, and the lower right spray group 11 are fixed to the cantilever frame 8 by a third fastener 10. The front spray group 4 is fixed to the reducer housing 6 by a fourth fastener 13. Motor cooling water nozzles 9 are arranged on the upper spray group 7.

[0024] Please refer to Figure 1 and Figure 2The upper spray assembly 7 includes an upper spray frame 702, which is a welded structure. Several nozzle mounting holes are provided on the upper spray frame 702, and atomizing nozzles 704 are installed inside the nozzle mounting holes. Lifting rings 701 are welded to both ends of the upper spray frame 702. A lower frame connecting plate 703 is welded to the bottom of the upper spray frame 702. A protective cover connecting plate 705 is also installed on the upper spray frame 702. Sprinkler mounting plates 708 are installed on the left and right sides of the upper spray frame 702. A reducer housing mounting column 706 is installed in the lower middle part of the upper spray frame 702. The frame 702 is also equipped with a first cantilever frame mounting column 707. The upper spray frame 702 of the upper spray group 7 is a welded structure with several nozzle mounting holes machined at a preset angle and atomizing nozzles 704 installed to ensure that the water jet sprays at the preset angle and completes the dust suppression task of the cutting head envelope. Lifting rings 701 are welded to the left and right sides of the upper spray frame 702, and a connecting plate 703 for the lower frame is welded to the bottom. A nozzle cover connecting plate 705 is machined on the upper plate. The whole assembly is connected to the reducer housing and the cantilever frame with high-strength bolts via the reducer housing mounting column 706 and the first cantilever frame mounting column 707. Water nozzle mounting plates 708 are provided on the left and right sides for water discharge after motor water cooling.

[0025] Please refer to Figure 1 and Figure 3 The lower left spray group 2 and the lower right spray group 11 include a left spray frame 201 and a right spray frame 207. Nozzles 202 are installed on the left spray frame 201 and the right spray frame 207, and the nozzles 202 spray a first water jet 208. A first connector protective cover 203 and a second connector protective cover 206 are respectively installed at one end of the left spray frame 201 and the right spray frame 207. Upper frame connecting plates 204 are installed on the sides of the left spray frame 201 and the right spray frame 207. A second cantilever mounting column 205 is installed on one side of the spray frame 201 and the right spray frame 207. The lower left spray group 2 and the lower right spray group 11 are symmetrically arranged. The left spray frame 201 and the right spray frame 207 are welded structures. The nozzle mounting holes are machined at a preset angle and the nozzles 202 are installed to ensure that the water jet sprays at the preset angle and completes the dust suppression task of the cutting head envelope. The left spray frame 201 and the right spray frame 207 are connected to the upper spray frame with fasteners and installed to the cantilever frame with high-strength bolts. The water chambers of the lower left spray group 2 and the lower right spray group 11 are independent and receive water on the left and right sides respectively. The joint end is equipped with a protective cover.

[0026] Please refer to Figure 1 and Figure 4The front spray assembly 4 includes an upper guard plate 301, front spray water chambers 302 at both ends of the upper guard plate 301, and multiple nozzle mounting seats 303 installed on the upper guard plate 301. Front nozzles 306 are mounted on the nozzle mounting seats 303, and the front nozzles 306 can spray a second water jet 304. A reducer housing mounting plate 305 is installed on the side of the upper guard plate 301. The main body of the front spray frame of the front spray assembly 4 is a welded structure, fixed to the reducer housing by fasteners via the upper guard plate 301. The front spray water chambers 302 are welded to the bottom of the upper guard plate 301. Several nozzle mounting seats 303 are welded to corresponding positions on the guard plate with preset welding angles. Nozzle mounting holes are machined according to the design angles, and front nozzles 306 are installed to ensure the water jet sprays at the preset angle, completing the dust suppression task of the cutting head envelope.

[0027] Please refer to Figure 4 and Figure 5 The front spray water chamber 302 includes a front chamber 401 and a water inlet connector 404. The front chamber 401 is connected to the left chamber 403 through the left chamber connecting pipe 402, and the front chamber 401 is connected to the right chamber 405 through the right chamber connecting pipe 406. The water chamber is a welded structure. The water chamber is divided into the front chamber 401, the left chamber 403, and the right chamber 405. The three chambers are connected, and a water inlet connector is provided at the tail end.

[0028] The implementation principle of the external spraying system of a horizontal shaft tunneling machine in this application embodiment is as follows: The upper spraying frame 702 of the upper spraying group 7 is a welded structure. Several nozzle mounting holes are machined at a preset angle, and atomizing nozzles 704 are installed to ensure that the water jet sprays at a preset angle to complete the dust suppression task of the cutting head envelope. Lifting rings 701 are welded on the left and right sides of the upper spraying frame 702, and a connecting plate 703 for the lower frame is welded on the bottom. A nozzle cover connecting plate 705 is machined on the upper plate. The whole is connected to the reducer housing and the cantilever frame with high-strength bolts through the reducer housing mounting column 706 and the first cantilever frame mounting column 707. Water spray nozzle mounting plates 708 are provided on the left and right sides for water discharge after the motor is cooled by water.

[0029] The lower left spray group 2 and lower right spray group 11 are symmetrically arranged. The left spray frame 201 and right spray frame 207 are welded structures, with nozzle mounting holes machined at preset angles and nozzles 202 installed to ensure the water jet sprays at the preset angle, completing the dust suppression task of the cutting head envelope. The left spray frame 201 and right spray frame 207 are connected to the upper spray frame with fasteners and installed to the cantilever frame with high-strength bolts. The water chambers of the lower left spray group 2 and lower right spray group 11 are independent, receiving water on the left and right sides respectively, and the joint ends are equipped with protective covers.

[0030] The main body of the front spray frame of the front spray group 4 is a welded structure, which is fixed to the reducer housing by fasteners through the upper guard plate 301. The front spray water chamber 302 is welded to the bottom of the upper guard plate 301. Several nozzle mounting seats 303 are welded to the corresponding positions of the guard plate with the welding angle preset. The nozzle mounting holes are machined according to the design angle, and the front nozzles 306 are installed to ensure that the water jet sprays at the preset angle and completes the dust suppression task of the cutting head envelope.

[0031] Its water cavity is a welded structure, consisting of a front cavity 401, a left cavity 403, and a right cavity 405. The three cavities are interconnected, and a water inlet connector is provided at the tail end.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An external spraying system for a horizontal shaft tunneling machine, characterized in that: It includes a first water flow pipe (1) and a second water flow pipe (12). The first water flow pipe (1) and the second water flow pipe (12) are connected to an upper spray group (7), a lower left spray group (2), a lower right spray group (11), and a front spray group (4). The upper spray group (7) is fixed to the reducer housing (6) by a second fastener (5). The lower left spray group (2) and the lower right spray group (11) are respectively connected to the upper spray group (7) by a first fastener (3). The upper spray group (7), the lower left spray group (2), and the lower right spray group (11) are fixed to the cantilever frame (8) by a third fastener (10). The front spray group (4) is fixed to the reducer housing (6) by a fourth fastener (13). Motor cooling water nozzles (9) are installed on the left and right sides of the upper spray group (7).

2. The external spraying system for a horizontal shaft tunneling machine according to claim 1, characterized in that: The upper spray assembly (7) includes an upper spray frame (702), which is a welded structure. Several nozzle mounting holes are opened on the upper spray frame (702), and atomizing nozzles (704) are installed inside the nozzle mounting holes.

3. The external spraying system for a horizontal shaft tunneling machine according to claim 2, characterized in that: Lifting rings (701) are welded to both ends of the upper spray frame (702). A lower frame connecting plate (703) is welded to the bottom of the upper spray frame (702). A protective cover connecting plate (705) is also installed on the upper spray frame (702). Sprinkler mounting plates (708) are installed on the left and right sides of the upper spray frame (702). A reducer housing mounting column (706) is installed in the lower middle part of the upper spray frame (702). A first cantilever frame mounting column (707) is also installed on the upper spray frame (702).

4. The external spraying system for a horizontal shaft tunneling machine according to claim 1, characterized in that: The lower left spray group (2) and the lower right spray group (11) include a left spray frame (201) and a right spray frame (207). Nozzles (202) are installed on the left spray frame (201) and the right spray frame (207), and the nozzles (202) spray out a first water jet (208).

5. The external spraying system for a horizontal shaft tunneling machine according to claim 4, characterized in that: The left spray frame (201) and the right spray frame (207) are respectively equipped with a first connector protective cover (203) and a second connector protective cover (206) at one end. The left spray frame (201) and the right spray frame (207) are equipped with an upper frame connecting plate (204) on their sides. The left spray frame (201) and the right spray frame (207) are equipped with a second cantilever frame mounting column (205) on one side of their ends.

6. The external spraying system for a horizontal shaft tunneling machine according to claim 1, characterized in that: The front spray assembly (4) includes an upper guard plate (301), front spray water chambers (302) at both ends of the upper guard plate (301), and multiple nozzle mounting seats (303) are also installed on the upper guard plate (301). A front nozzle (306) is installed on the nozzle mounting seat (303), and the front nozzle (306) can spray a second water jet (304). A reducer housing mounting plate (305) is installed on the side of the upper guard plate (301).

7. The external spraying system for a horizontal shaft tunneling machine according to claim 6, characterized in that: The front spray water chamber (302) includes a front chamber (401) and a water inlet connector (404). The front chamber (401) is connected to the left chamber (403) through the left chamber connecting pipe (402), and the front chamber (401) is connected to the right chamber (405) through the right chamber connecting pipe (406).

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