A tunnel boring machine cutterhead flushing device for geological exploration

Abstract

The utility model discloses a tunnel boring machine cutterhead flushing device for geological exploration, include: mainboard, mounting plate, protection piece, connecting piece, the mainboard is installed in the opposite face of cutterhead mud hiding edge through bolt, the mainboard whole is rectangular frame board structure, and the inner top surface and the inner bottom surface all are equipped with the limiting groove, the inner right side of mainboard is installed with electric push rod, electric push rod and the side end installation connection of connecting piece, the front end of connecting piece is connected with mounting plate, the front end mounting of mounting plate has the conical shower nozzle, the utility model provides a tunnel boring machine cutterhead flushing device for geological exploration solution background technical scheme, and the water that the flush pipe of flat mouth shape sprays causes the water pressure to reduce, reduces the cleaning effect, and in the swing process, the cleaning water that sprays is further weakened the impact force under the influence of gravity, is not favorable to actual use.

Description

Technical Field

[0001] This utility model relates to the technical field of cutterhead cleaning equipment, and in particular to a cutterhead flushing device for a tunnel boring machine used in geological exploration. Background Technology

[0002] In the fields of geological exploration and tunnel construction, tunnel boring machines (TBMs) are highly efficient excavation equipment, and the design and maintenance of their cutterheads are crucial. However, in actual operation, the cutterheads often face severe challenges: mixtures of rock and soil, gravel, and mud are easily adhered to the surface and gaps of the cutterhead under high-speed rotation. This not only increases the rotational resistance of the cutterhead and reduces tunneling efficiency, but also accelerates cutter wear and may even cause the cutterhead to become clogged, affecting project progress and safety. Traditional manual cleaning methods are time-consuming, labor-intensive, and pose safety hazards, while conventional flushing systems often fail to effectively remove stubborn deposits due to insufficient water pressure, unreasonable nozzle layout, or improper selection of cleaning media.

[0003] In the utility model patent with patent publication number CN219233281U, the output end of the drive motor rotates to drive the turntable to rotate, the turntable rotation drives the push rod to make a circular motion, the push rod moves to push the limit ring to move back and forth, the limit ring moves back and forth to drive the connecting rod to move back and forth, the connecting rod moves back and forth to drive the T-shaped slider to move back and forth, the connecting rod moves back and forth to drive the rack to move back and forth, the rack moves back and forth to drive the two gears to rotate partially back and forth, the gear rotation drives the rotating shaft to rotate partially back and forth, the rotating shaft rotates to drive the flushing pipe to swing, so that the water sprayed from the flushing pipe can swing. The swinging flushing water can clean the cutterhead of the shield tunnel boring machine. Although the above method can complete the swinging and water spraying operation, there are also problems: the water sprayed from the flat-mouthed flushing pipe causes the water pressure to drop, which reduces the cleaning effect. In addition, during the swinging process, the impact force of the sprayed cleaning water is further weakened by gravity, which is not conducive to practical use.

[0004] Therefore, it is necessary to provide a cutterhead flushing device for tunnel boring machines used in geological exploration to solve the above-mentioned technical problems. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a flushing device for the cutterhead of a tunnel boring machine for geological exploration. In the background technology, the water sprayed from the flat-mouthed flushing pipe causes a decrease in water pressure, which reduces the cleaning effect. Furthermore, during the swinging process, the sprayed cleaning water is further weakened by gravity, which is not conducive to practical use.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A cutterhead flushing device for a tunnel boring machine used in geological exploration includes: a main board, a mounting plate, protective components, and connecting components; The main board is bolted to the opposite side of the cutter head's mud-collecting edge. The main board is a rectangular frame structure with limit grooves on its inner top and bottom surfaces. An electric actuator is installed on the inner right side of the main board. The electric actuator is connected to the side end of the connector. The front end of the connector is connected to the mounting plate. A conical nozzle is installed on the front end of the mounting plate.

[0007] In one embodiment, the conical nozzle is connected to the connecting pipe of the mounting plate, and the other end of the connecting pipe is connected to the water inlet pipe. The water inlet pipe is a flexible hose, and the other end of the water inlet pipe is connected to an external water supply pipe. The main body of the connector is a movable frame and a slider, and the front and rear ends of the movable frame are both open.

[0008] In one embodiment, a fixed rod is installed at the rear end of the mobile frame. Four fixed rods are arranged in a cross shape. A first limiting ring is installed at the middle of the extended end of the fixed rod. The first limiting ring is installed at the connection between the water inlet pipe and the connecting pipe to support and limit the connection between the two.

[0009] In one embodiment, an extension rod is installed at the bottom rear end of the mobile frame, and a second limiting ring is installed at the extended end of the extension rod, the second limiting ring being located in the middle section of the water inlet pipe.

[0010] In one embodiment, a protective component is bolted to the front end of the mounting plate. The protective component consists of a protective plate and a protective rod. The protective plate is installed at the front end of the mounting plate, and the two are in a close fit. A protective rod is installed at the front end of the protective plate. The extended end of the protective rod is inclined downward toward the conical nozzle. Multiple protective rods are installed in a circular array with the center of the conical nozzle as the reference point.

[0011] The beneficial effects of this utility model are as follows: (1) This utility model drives the connecting piece to move back and forth in the limiting groove by starting the electric push rod, and then drives the mounting plate and the conical nozzle to move through the connecting piece, and performs reciprocating rinsing on the cutter disc. Compared with the rectangular nozzle, the single nozzle setting has a stronger impact force and a better cleaning effect on the soil. The first limiting ring is installed at the connection between the water inlet pipe and the connecting pipe to support and limit the connection between the two, avoiding the problem of excessive pulling during displacement. The second limiting ring is located in the middle section of the water inlet pipe, further improving the protection effect of the water inlet pipe.

[0012] (2) By setting up a protective rod, the protective rod protects the conical nozzle during the cleaning process of the cutter head, avoiding the problem of mud and stone falling off and damaging the nozzle due to rinsing, and extending the service life of the nozzle. Attached Figure Description

[0013] Figure 1This is a structural diagram of the present invention; Figure 2 This is a schematic diagram showing the disassembled components of this utility model; Figure 3 Here are detailed drawings of the protective component of this utility model; Figure 4 This is a detailed drawing of the connector of this utility model.

[0014] The corresponding names of the attached reference numerals are: main board 1, limiting groove 11, electric push rod 12, mounting plate 2, cone nozzle 21, water inlet pipe 22, connecting pipe 23, protective component 3, protective plate 31, protective rod 32, connecting component 4, moving frame 41, slider 42, fixing rod 43, first limiting ring 44, extension rod 45, and second limiting ring 46. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0016] like Figures 1-2 As shown, the present invention provides a cutterhead flushing device for a tunnel boring machine used for geological exploration, comprising: a main board 1, a mounting plate 2, a protective component 3, and a connecting component 4; like Figures 1-4 As shown, the main board 1 is bolted to the opposite side of the cutter head's mud-collecting edge. The main board 1 is a rectangular frame structure with limiting grooves 11 on its inner top and bottom surfaces. An electric actuator 12 is installed on the inner right side of the main board 1. The electric actuator 12 is connected to the side end of the connector 4. The front end of the connector 4 is connected to the mounting plate 2. A conical nozzle 21 is installed on the front end of the mounting plate 2. During operation, the electric actuator 12 is activated to move the connector 4 back and forth within the limiting groove 11. In turn, the connector 4 moves the mounting plate 2 and the conical nozzle 21 to reciprocate and flush the cutter head. Compared with the rectangular nozzle, the single nozzle setting has a stronger impact force and a better cleaning effect on the mud.

[0017] Preferably, in one embodiment, such as Figures 2-4 As shown, the conical nozzle 21 is connected to the connecting pipe 23 of the mounting plate 2. The other end of the connecting pipe 23 is connected to the water inlet pipe 22. The water inlet pipe 22 is a flexible hose. The other end of the water inlet pipe 22 is connected to the external water supply pipe. The main body of the connector 4 is a movable frame 41 and a slider 42. The front and rear ends of the movable frame 41 are both open.

[0018] Preferably, in one embodiment, such as Figure 4As shown, a fixed rod 43 is installed at the rear end of the movable frame 41. There are four fixed rods 43 arranged in a cross shape. A first limiting ring 44 is installed in the middle of the extension end of the fixed rod 43. The first limiting ring 44 is installed at the connection between the water inlet pipe 22 and the connecting pipe 23 to support and limit the connection between the two, so as to avoid excessive pulling during displacement.

[0019] Preferably, in one embodiment, such as Figure 4 As shown, an extension rod 45 is installed at the bottom rear end of the movable frame 41, and a second limiting ring 46 is installed at the extended end of the extension rod 45. The second limiting ring 46 is located in the middle section of the water inlet pipe 22, which further enhances the protection effect of the water inlet pipe 22.

[0020] Preferably, in one embodiment, such as Figures 2-3 As shown, the front end of the mounting plate 2 is bolted with a protective component 3. The protective component 3 consists of a protective plate 31 and a protective rod 32. The protective plate 31 is installed at the front end of the mounting plate 2, and the two are in a close fit. The protective rod 32 is installed at the front end of the protective plate 31. The extended end of the protective rod 32 is inclined downward toward the conical nozzle 21. Multiple protective rods 32 are installed in a circular array with the center of the conical nozzle 21 as the reference point. Through the setting of the protective rod 32, the protective rod 32 protects the conical nozzle 21 during the cleaning process of the cutter head, avoiding the problem of mud and stones falling off and damaging the nozzle due to rinsing, and extending the service life of the nozzle.

[0021] Working principle of this utility model: During operation, the electric actuator 12 drives the connector 4 to move back and forth within the limiting groove 11, which in turn drives the mounting plate 2 and the conical nozzle 21 to move, thus reciprocating the cleaning of the cutter disc. Compared with the rectangular nozzle, the single nozzle setting has a stronger impact force and a better cleaning effect on the mud. The protective rod 32 protects the conical nozzle 21 during the cleaning process of the cutter disc, preventing mud and stones from falling off and damaging the nozzle, thus extending the service life of the nozzle.

[0022] The above embodiments are merely one of the preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but solve the same technical problem as this utility model, should be included within the scope of protection of this utility model.

Claims

1. A cutterhead flushing device for a tunnel boring machine used in geological exploration, characterized in that, include: Motherboard, mounting plate, protective components, connectors; The main board is bolted to the opposite side of the cutter head's mud-collecting edge. The main board is a rectangular frame structure with limit grooves on its inner top and bottom surfaces. An electric actuator is installed on the inner right side of the main board. The electric actuator is connected to the side end of the connector. The front end of the connector is connected to the mounting plate. A conical nozzle is installed on the front end of the mounting plate.

2. The cutterhead flushing device for a tunnel boring machine for geological exploration according to claim 1, characterized in that, The conical nozzle is connected to the mounting plate via a connecting pipe. The other end of the connecting pipe is connected to the water inlet pipe, which is a flexible hose. The other end of the water inlet pipe is connected to an external water supply pipe. The main body of the connector consists of a movable frame and a slider. The front and rear ends of the movable frame are both open.

3. The cutterhead flushing device for a tunnel boring machine for geological exploration according to claim 2, characterized in that, The rear end of the mobile frame is equipped with a fixing rod, and there are four fixing rods arranged in a cross shape. A first limiting ring is installed in the middle of the extension end of the fixing rod. The first limiting ring is installed at the connection between the water inlet pipe and the connecting pipe to support and limit the connection between the two.

4. The cutterhead flushing device for a tunnel boring machine for geological exploration according to claim 3, characterized in that, An extension rod is installed at the bottom rear end of the mobile frame, and a second limiting ring is installed at the extended end of the extension rod. The second limiting ring is located in the middle section of the water inlet pipe.

5. A cutterhead flushing device for a tunnel boring machine for geological exploration according to claim 2, characterized in that, The front end of the mounting plate is bolted with a protective component, which consists of a protective plate and a protective rod. The protective plate is installed at the front end of the mounting plate, and the two are in a close fit. The front end of the protective plate is equipped with a protective rod, the extension end of which is inclined downward toward the conical nozzle. Multiple protective rods are installed in a circular array with the center of the conical nozzle as the reference point.

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