Miniature tunnel excavator

Abstract

The invention discloses a miniature tunnel excavator, relates to the technical field of tunneling equipment, and aims to solve the problems that an existing shield tunneling machine is very large in size, complex in operation flow in the using process and not suitable for low-cost and rapid excavation of a small tunnel with soft soil. A matched vehicle-mounted frame is loaded on the outer side of the heading machine, movable telescopic structures are arranged on the two sides of the vehicle-mounted frame, the heading machine is carried on the tool car by lifting the vehicle-mounted frame, and a plurality of first conveying belts which are spliced with one another are connected to the end, away from the heading machine, of the motor conveying belt. A detachable splicing structure is arranged between the motor conveying belt and the first conveying belt, and the motor conveying belt and the first conveying belt are used for conveying soil generated by excavation of the heading machine out of the tunnel. The miniature tunnel excavator is small in size, can be loaded by a tool car, is high in adaptability, can play a good role in soft and gravel soil texture, and meets various battlefield environment requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of tunneling equipment, and particularly to a micro tunnel excavator. Background Art

[0002] In life, people often need to dig tunnels with relatively small sizes in relatively soft soil, such as for laying cables, optical cables, or gas pipelines, etc. Due to the lack of relevant professional equipment, when laying optical cables, cables, or gas pipelines, a shallow trench has to be dug on the ground. After placing the optical cables, cables, or gas pipelines, etc. in the trench, landfill is carried out. This results in a very small depth of the laid optical cables, cables, or gas pipelines, etc., which are easily damaged intentionally or unintentionally. Moreover, during excavation, it is also necessary to damage the hardened road surface and trees on the ground, with high costs and poor safety.

[0003] In the excavation of trenches in warfare, the trenches dug by traditional large mechanical equipment are in an open-air and open state, and are easily attacked by modern suicide drones, resulting in a significant reduction in safety. For example, in the excavation of trenches on the battlefield, whether it is manual excavation or trench excavators, the trenches can only be dug on the ground surface. This causes soldiers to be completely exposed within the attack range of the drones flying all over the place when using the trenches, becoming easy targets for drone attacks. At the same time, the efficiency of manual tunnel excavation is low and cannot meet the requirements of rapid deployment during wartime. Therefore, designing a vehicle-mounted small and portable tunnel boring machine to make up for the disadvantages of the trenches dug by large equipment by taking advantage of the tunnels dug to a certain depth underground has important strategic significance;

[0004] However, the disadvantages of the existing technology are that the existing shield machines are significantly effective in dealing with rocks in mountains, but due to their extremely large size and complex operation processes during use, they are completely unsuitable for low-cost and rapid excavation of small and soft-soil tunnels. Summary of the Invention

[0005] The micro tunnel excavator proposed by the present invention solves the problem that the existing shield machines are significantly effective in dealing with rocks in mountains, but due to their extremely large size and complex operation processes during use, they are completely unsuitable for low-cost and rapid excavation of small and soft-soil tunnels.

[0006] To achieve the above object, the present invention adopts the following technical solution: The micro tunnel excavator includes a tunneling machine, and a supporting vehicle-mounted frame is loaded on the outer side of the tunneling machine, and movable telescopic structures are arranged on both sides of the vehicle-mounted frame. The tunneling machine is carried onto a tool vehicle by lifting the vehicle-mounted frame, and the tunneling machine is lowered and placed on the ground when the vehicle-mounted frame descends;

[0007] One end inside the roadheader is connected to a motor conveyor belt, and the other end of the roadheader is connected to a rotary excavation structure. The roadheader includes two groups of drill bits, second hydraulic rods, third hydraulic rods, and fourth hydraulic rods. The telescopic movement of the two groups of second hydraulic rods drives the roadheader to move forward and backward. The two groups of drill bits rotate relative to each other. The two groups of third hydraulic rods push to complete horizontal turning. The telescopic movement of the two groups of fourth hydraulic rods controls the lifting of the roadheader;

[0008] One end of the motor conveyor belt away from the roadheader is connected to a number of first conveyor belts spliced together, and the connection between the motor conveyor belt and the first conveyor belts is a detachable splicing structure. The motor conveyor belt and the first conveyor belts are used to transport the soil generated by the excavation of the roadheader out of the tunnel.

[0009] Preferably, the vehicle-mounted frame includes a square frame. The square frame is a cubic frame structure. Three first connecting rods are connected to the upper and lower sides of the square frame at equal intervals. The other end of the first connecting rod is connected to a second connecting rod, and a third connecting rod is connected above the first connecting rod.

[0010] Preferably, one side of each end of the third connecting rod is connected to a first hydraulic rod. One end of the second connecting rod is connected to a rotating wheel below, and a guide rod is connected to the outside of the rotating wheel. One end of the first hydraulic rod is connected to a placement box, and the inside of the placement box is in contact with the roadheader.

[0011] Preferably, the roadheader includes a housing. The housing is in a quasi-cubic structure. A plurality of fixed brackets are connected to the outside of the housing. One end of the housing is connected to a connecting arc plate, and four drill bits are symmetrically installed inside the connecting arc plate. One end of each of the four drill bits is connected to a first motor.

[0012] Preferably, both sides of the outside of the fixed bracket are connected to a first frame, and a second hydraulic rod is placed inside the first frame. The telescopic end of the second hydraulic rod is connected to the fixed bracket. Two second frames are connected above the fixed bracket. A third hydraulic rod is placed inside each of the two second frames, and the telescopic ends of the two third hydraulic rods are placed opposite to each other. The telescopic ends of the two third hydraulic rods are connected to a push plate.

[0013] Preferably, both sides of the housing are connected to a placement frame. One side of the placement frame is connected to a rotating plate. One end of the rotating plate is connected to the connecting arc plate. A fourth hydraulic rod is connected inside the placement frame, and one end of the rotating plate is connected to the fixed bracket.

[0014] Preferably, the motor conveyor belt is an electric transmission structure, and the overall length of the motor conveyor belt is six meters.

[0015] Preferably, the first conveyor belt includes a cross plate. Square plates are symmetrically connected to both sides of the cross plate. Rollers are connected below the square plates. Motor wheels are connected to both ends inside the cross plate.

[0016] Preferably, a plurality of connecting rotating wheels are connected inside the cross plate for support, and a frame plate is connected above the cross plate, and a synchronous belt is connected between the motor rotating wheel and the outside of the frame plate.

[0017] A control system for a micro tunnel excavator, which is applied to the above-mentioned excavator. The control system includes a Bluetooth module, a WIFI module, a wireless module, and a control host. The control host is connected through the Bluetooth module, the WIFI module or the wireless module. By installing sensors and a level on the excavator, the operation of the machine can be precisely controlled, and the current attitude and state of the excavator can be detected.

[0018] The beneficial effects of the present invention are as follows: The device is small in size, can be loaded by a tool vehicle, is flexible and convenient to move, and is convenient for rapid deployment and transfer;

[0019] The device drives the placement box to descend by starting the telescopic first hydraulic rod, safely lowers the tunneling machine in the placement box to the ground, rotates the drill bit to work, starts cutting the soil, the device enters the ground, pushes the push plate by the telescopic third hydraulic rod, opens up a certain space for the movement of the tunneling machine, starts moving the telescopic end of the second hydraulic rod to drive the fixed support to move forward for excavation. If it is necessary to turn left or right, one of the two telescopic fourth hydraulic rods can be started to drive the device to turn obliquely. The degree of automation is high, and the number of personnel required for operation is small. Only one person is required to complete the whole process of operation, reducing the labor cost and improving the operation efficiency;

[0020] By vertically stacked excavation, that is, the height and width dimensions of 0.8 meters for each excavation are vertically accumulated, so that the width and height of the tunnel excavated by the device can reach 0.8 meters and 2.4 meters, which can easily meet the two-way passage of two people, and after appropriate reinforcement, form a temporary or semi-permanent fortification. In the military aspect, the tunnel can be inclined deep into the ground to effectively avoid aerial threats such as suicide drones; in urban construction, tunnels can be excavated without damaging the ground buildings at all to lay various pipelines, cables, optical cables, etc. It has strong adaptability and can play a good role in both soft and gravelly soil, meeting various military and civilian needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the working site of the micro tunnel excavator of the present invention before work.

[0022] Figure 2 It is a schematic overall structure diagram of the micro tunnel excavator of the present invention.

[0023] Figure 3 It is a schematic diagram of the vehicle-mounted frame of the present invention.

[0024] Figure 4Schematic diagram of the roadheader of the present invention.

[0025] Figure 5 Schematic diagram of the second hydraulic rod of the present invention.

[0026] Figure 6 For the present invention Figure 5 Enlarged schematic diagram at position A of

[0027] Figure 7 Side view of the roadheader of the present invention.

[0028] Figure 8 Schematic diagram of the first conveyor belt of the present invention.

[0029] Figure 9 Schematic diagram of the control system of the present invention.

[0030] Reference numerals in the figure: 1, tool vehicle; 2, vehicle-mounted frame; 201, square frame; 202, first connecting rod; 203, second connecting rod; 204, third connecting rod; 205, first hydraulic rod; 206, rotating wheel; 207, guide rod; 208, placement box; 3, roadheader; 301, housing; 302, connecting arc plate; 303, drill bit; 304, first motor; 305, fixed bracket; 306, first frame; 307, second hydraulic rod; 308, second frame; 309, third hydraulic rod; 310, push plate; 311, placement frame; 312, rotating plate; 313, fourth hydraulic rod; 4, motor conveyor belt; 5, first conveyor belt; 501, cross plate; 502, roller; 503, motor runner; 504, connecting runner; 505, frame plate; 506, synchronous belt. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] Embodiment 1

[0033] Referring to Figures 1 - 8 , a micro tunnel excavator includes a roadheader 3. A supporting vehicle-mounted frame 2 is loaded on the outside of the roadheader 3, and a mobile telescopic structure is provided on both sides of the vehicle-mounted frame 2. The roadheader 3 is carried onto various types of tool vehicles 1 by lifting the vehicle-mounted frame 2, and the roadheader 3 is lowered and placed on the ground when the vehicle-mounted frame 2 descends;

[0034] One end inside the roadheader 3 is connected to the motor conveyor belt 4, and the other end of the roadheader 3 is connected to a rotary excavation structure. The roadheader 3 includes two groups of drill bits 303, second hydraulic rods 307, third hydraulic rods 309, and fourth hydraulic rods 313. The telescoping of the two groups of second hydraulic rods 307 drives the roadheader 3 to move forward and backward. The two groups of drill bits 303 rotate relative to each other, making the roadheader 3 more stable and having stronger digging force. The two groups of third hydraulic rods 309 push to complete horizontal turning, thereby realizing the horizontal turning of the roadheader 3, turning left or right; the telescoping of the two groups of fourth hydraulic rods 313 controls the lifting of the roadheader 3; thereby controlling the rise or fall of the roadheader 3;

[0035] One end of the motor conveyor belt 4 far from the roadheader 3 is connected to a number of first conveyor belts 5 spliced with each other, and the connection between the motor conveyor belt 4 and the first conveyor belt 5 is a detachable splicing structure. The motor conveyor belt 4 and the first conveyor belt 5 are used to transport the soil generated by the excavation of the roadheader 3 out of the tunnel.

[0036] Reference Figure 3 , the vehicle-mounted frame 2 includes a square frame 201. The square frame 201 is a cubic frame structure, and three first connecting rods 202 are connected to the upper and lower sides of the square frame 201 at equal intervals. The other end of the first connecting rod 202 is connected to a second connecting rod 203. A third connecting rod 204 is connected above the first connecting rod 202. The vehicle-mounted frame 2 is connected and installed to one end of the tool vehicle 1 through the square frame 201, the first connecting rod 202 and the second connecting rod 203. One side of both ends of the third connecting rod 204 is connected to a first hydraulic rod 205. One end of the second connecting rod 203 is connected to a rotating wheel 206 below, and a guide rod 207 is connected to the outside of the rotating wheel 206. One end of the first hydraulic rod 205 is connected to a placement box 208, and the inside of the placement box 208 is in contact with the roadheader 3. By starting the telescoping of the first hydraulic rod 205, the telescoping end of the first hydraulic rod 205 drives the placement box 208 to descend, and safely lowers the roadheader 3 in the placement box 208 to the ground.

[0037] Reference Figures 4 - 7, the tunneling machine 3 includes a housing 301. The housing 301 has a cuboid-like structure, and a plurality of fixed brackets 305 are connected to the outside of the housing 301. One end of the housing 301 is connected to a connecting arc plate 302, and four drill bits 303 are symmetrically installed inside the connecting arc plate 302. One end of each of the four drill bits 303 is connected to a first motor 304. By starting the rotation of the fixed bracket 305 to rotate the drill bits 303, the drill bits 303 rotate to work and start cutting the soil. The cut soil falls onto the motor conveyor belt 4 through the square notch in the middle of the connecting arc plate 302, and the soil is transported to the outside by starting the motor conveyor belt 4; both sides of the outside of the fixed bracket 305 are connected to a first frame 306, and a second hydraulic rod 307 is placed inside the first frame 306. The telescopic end of the second hydraulic rod 307 is connected to the fixed bracket 305. Two second frames 308 are connected above the fixed bracket 305. A third hydraulic rod 309 is placed inside the two second frames 308, and the telescopic ends of the two third hydraulic rods 309 are placed opposite to each other. The telescopic ends of the two third hydraulic rods 309 are connected to a push plate 310. When the tunneling machine 3 enters the tunnel interior, the push plate 310 is pushed by telescoping the third hydraulic rod 309 to create a certain space for the movement of the tunneling machine 3. The second hydraulic rod 307 is placed on one side of the fixed bracket 305 through the first frame 306. By starting the second hydraulic rod 307, the telescopic end drives the fixed bracket 305 to move forward, and continuous excavation is carried out in cooperation with the rotation of the drill bits 303; both sides of the housing 301 are connected to a placement frame 311. One side of the placement frame 311 is connected to a rotating plate 312. One end of the rotating plate 312 is connected to the connecting arc plate 302. A fourth hydraulic rod 313 is connected inside the placement frame 311, and one end of the rotating plate 312 is connected to the fixed bracket 305. The motor conveyor belt 4 is an electric transmission structure, and the overall length of the motor conveyor belt 4 is six meters. When the device needs to turn left or right, one of the two fourth hydraulic rods 313 is telescoped to drive the device to turn obliquely.

[0038] Reference Figure 8 , the first conveyor belt 5 includes a cross plate 501. Square plates are symmetrically connected to both sides of the cross plate 501. Rollers 502 are connected below the square plates. Motor runners 503 are connected to both ends inside the cross plate 501. A plurality of connecting runners 504 are connected inside the cross plate 501 for support, and a frame plate 505 is connected above the cross plate 501. A synchronous belt 506 is connected between the motor runner 503 and the outside of the frame plate 505. The tunneling machine 3 is used to excavate tunnels with a width of 80 cm and a height of 240 cm, or a width of 80 cm and a height of 80 cm, or other different specifications, and can be excavated in a superimposed manner. The tunneling machine 3 is used to excavate soft soil and gravel soil. The first conveyor belt 5 is a spliceable structure, and personnel can splice and carry multiple first conveyor belts 5 according to the length of the grooving. By rotating the motor runner 503 to drive the synchronous belt 506 for transmission, the soil is transported out through the transmission of the synchronous belt 506.

[0039] Working principle: First, lower the device from the tool vehicle 1 to the ground. By activating the telescopic first hydraulic rod 205, the telescopic end of the first hydraulic rod 205 drives the placement box 208 to descend, and safely lowers the roadheader 3 in the placement box 208 to the ground. At this time, the gasoline power station and the hydraulic control station start to work to provide power for the startup of the roadheader 3. The first motor 304 installed inside the roadheader 3 drives the drill bit 303 to rotate and dig into the soil. The soil falls onto the motor conveyor belt 4 through the square notch in the middle of the connecting arc plate 302, and is transported to the outside by starting the motor conveyor belt 4. When the roadheader 3 enters the soil to a certain depth, connect the first conveyor belt 5 to the tail of the roadheader 3. According to the different excavation lengths, the first conveyor belt 5 can be modularly spliced to form a long conveyor belt to transport the excavated soil out of the tunnel. Push the push plate 310 by extending and retracting the third hydraulic rod 309 to create a certain space for the movement of the roadheader 3. The second hydraulic rod 307 is placed on one side of the fixed bracket 305 through the first frame 306, and starts to move by activating the second hydraulic rod 307, and the telescopic end drives the fixed bracket 305 to move forward. When the roadheader 3 needs to change the excavation direction, the fourth hydraulic rod 313 in the roadheader 3 starts to extend and retract, and cooperates with the extension and retraction of the third hydraulic rod 309 and the second hydraulic rod 307 to drive the device to skew and turn, realizing the rising, falling, left and right turning of the equipment, and successively excavating tunnels of corresponding specifications along the same trajectory; after the tunnel excavation is completed, the roadheader 3 can be pulled back into the vehicle-mounted lifting platform by the vehicle-mounted traction device.

[0040] Embodiment 2

[0041] Refer to Figure 9 As shown, the control system for the micro tunnel excavator includes a Bluetooth module, a WIFI module, a wireless module, and a control host. It is connected to the control host through the Bluetooth module, the WIFI module or the wireless module, and is also connected to an external control computer at the same time. By installing sensors and a level on the excavator, the operation of the machine can be accurately controlled, and the current attitude and state of the excavator can be detected.

[0042] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A micro tunnel excavator, comprising a tunnel boring machine (3), characterized in that: The outer side of the tunnel boring machine (3) is loaded with a matching vehicle-mounted frame (2), and movable telescopic structures are arranged on both sides of the vehicle-mounted frame (2). The tunnel boring machine (3) is loaded onto the tool vehicle (1) by raising and lowering the vehicle-mounted frame (2), and the tunnel boring machine (3) is lowered and placed on the ground when the vehicle-mounted frame (2) is lowered; One end of the tunnel boring machine (3) is connected to a motor conveyor belt (4), and the other end of the tunnel boring machine (3) is connected to a rotating excavation structure. The tunnel boring machine (3) comprises two sets of drill bits (303), a second hydraulic rod (307), a third hydraulic rod (309), and a fourth hydraulic rod (313). The two sets of the second hydraulic rods (307) are extended and retracted to drive the tunnel boring machine (3) to move forward and backward. The two sets of the drill bits (303) are relatively rotated. The two sets of the third hydraulic rods (309) are pushed to complete horizontal steering. The two sets of the fourth hydraulic rods (313) are extended and retracted to control the lifting and lowering of the tunnel boring machine (3); The motor conveyor belt (4) is connected to a plurality of first conveyor belts (5) spliced ​​to each other at one end away from the tunnel boring machine (3), and a detachable splicing structure is provided between the motor conveyor belt (4) and the first conveyor belt (5). The motor conveyor belt (4) and the first conveyor belt (5) are used to transport soil excavated by the tunnel boring machine (3) out of the tunnel.

2. The micro tunnel excavator according to claim 1, characterized in that: The vehicle-mounted frame (2) comprises a square frame (201), the square frame (201) is a cubic frame structure, and three first connecting rods (202) are connected at equal intervals on both sides of the square frame (201), the other end of the first connecting rod (202) is connected to a second connecting rod (203), and the top of the first connecting rod (202) is connected to a third connecting rod (204).

3. The micro tunnel excavator according to claim 2, characterized in that: The first hydraulic rod (205) is connected to one side of both ends of the third connecting rod (204), the lower end of the second connecting rod (203) is connected to a rotating wheel (206), and the outer side of the rotating wheel (206) is connected to a guide rod (207), and one end of the first hydraulic rod (205) is connected to a placement box (208), and the interior of the placement box (208) is in contact with the tunnel boring machine (3).

4. The micro tunnel excavator according to claim 1, characterized in that: The tunnel boring machine (3) comprises a shell (301), the shell (301) is a cube-like structure, and the shell (301) is externally connected to a plurality of fixing brackets (305), one end of the shell (301) is connected to a connecting arc plate (302), and four drill bits (303) are symmetrically installed inside the connecting arc plate (302), and one end of each of the four drill bits (303) is connected to a first motor (304).

5. The micro tunnel excavator according to claim 4, characterized in that: The fixed bracket (305) is connected to first frames (306) on both sides of the outside, and a second hydraulic rod (307) is placed inside the first frame (306), and the telescopic end of the second hydraulic rod (307) is connected to the fixed bracket (305). Two second frames (308) are connected above the fixed bracket (305), and a third hydraulic rod (309) is placed inside the two second frames (308), and the telescopic ends of the two third hydraulic rods (309) are placed opposite to each other, and the telescopic ends of the two third hydraulic rods (309) are connected to push plates (310).

6. The micro tunnel excavator according to claim 4, characterized in that: The housing (301) is connected to a frame (311) on both sides, a rotating plate (312) is connected to one side of the frame (311), one end of the rotating plate (312) is connected to the connecting arc plate (302), a fourth hydraulic rod (313) is connected inside the frame (311), and one end of the rotating plate (312) is connected to a fixed bracket (305).

7. The micro tunnel excavator according to claim 1, characterized in that: The motor conveyor belt (4) is an electric transmission structure, and the overall length of the motor conveyor belt (4) is six meters.

8. The micro tunnel excavator according to claim 1, characterized in that: The first conveyor belt (5) comprises a transverse plate (501), square plates are symmetrically connected to the two sides of the transverse plate (501), rollers (502) are connected below the square plates, and motor wheels (503) are connected to the two ends of the transverse plate (501).

9. The micro tunnel excavator according to claim 8, characterized in that: The transverse plate (501) is internally connected to a plurality of connecting wheels (504) for support, and a frame plate (505) is connected above the transverse plate (501), and a synchronous belt (506) is externally connected between the motor wheel (503) and the frame plate (505).

10. A control system for a micro tunnel excavator, characterized in that: Applied to the excavator described in any one of claims 1 to 9 above, the control system includes a Bluetooth module, a WIFI module, a wireless module, and a control host, which is connected to the control host via the Bluetooth module, the WIFI module or the wireless module, and the operation of the machine is accurately controlled by placing sensors and a level on the excavator, and the current posture and current state of the excavator are detected.

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