A shield material transport device

Abstract

The application discloses a shield material conveying device and relates to the technical field of shield construction material conveying, which comprises a moving unit, a buffer unit, a bearing unit and a connecting unit. The moving unit comprises a vehicle frame, a connecting frame, a crossbeam and traveling wheels. The buffer unit comprises buffer assemblies and supporting plates arranged on the crossbeam. The bearing unit comprises a waste residue carriage, a mortar carriage and a shield piece carriage, and the bottoms of the three carriages are semicircular and are attached to the supporting plates. The connecting unit comprises slots arranged on the two sides of the supporting plates, plug blocks arranged on the two sides of each carriage, spring buckles arranged on the outer walls of the plug blocks and positioning pins arranged on the supporting plates, so that the carriages and the moving unit can be quickly disassembled and assembled. A plurality of moving units can be connected in series to form a vehicle group. The shield material conveying device can realize one vehicle with multiple functions by quickly replacing the carriages, is small in size and suitable for narrow tunnels, the buffer unit can effectively protect the shield pieces, the mortar carriage has a stirring function to prevent caking, and the shield material conveying device can effectively match the rapid tunneling requirements of small TBM shield machines.

Description

Technical Field

[0001] This invention relates to the field of material transportation technology in tunnel boring machine (TBM) construction, and in particular to a TBM material transportation device. Background Technology

[0002] In existing shield tunneling construction, conventional TBMs (tunnel boring machines) are usually equipped with a matching material transport system. However, this system is mainly designed for large-scale tunnel projects. The transport equipment is large in size, has a single function (one type of transport vehicle can only transport one type of material), and the carriage and frame are fixedly connected and cannot be replaced.

[0003] However, with the continuous development of underground engineering construction, small TBMs have been widely used in municipal pipelines, small tunnels, and other projects due to their high flexibility and adaptability. While small TBMs are characterized by their fast excavation speed, current tunnel construction still uses the same transportation methods as conventional TBMs, lacking dedicated material handling equipment designed specifically for them. Because small TBMs are used in tunnels with smaller cross-sections and narrower spaces, conventional TBM transportation equipment struggles to operate flexibly in these tunnels. Furthermore, the high excavation speed of small TBMs means that the efficiency of conventional transportation tools cannot match their excavation speed, becoming a bottleneck restricting construction efficiency. Summary of the Invention

[0004] In view of the above-mentioned problems in the prior art, the present invention is proposed.

[0005] The purpose of this invention is to provide a shield material transport device, which aims to solve the problem of low efficiency of existing TBM transport equipment when used in conjunction with small TBM shields.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a shield tunneling material transportation device, comprising a mobile unit, including a frame, connecting frames disposed at the front and rear ends of the frame, a crossbeam disposed on the frame, and wheels disposed on the frame;

[0007] The buffer unit includes a buffer assembly disposed on the crossbeam and a support plate disposed at the buffer end of the buffer assembly;

[0008] The supporting units include waste slag carriages, mortar carriages, and tunnel segment carriages;

[0009] The connecting unit includes slots on both sides of the support plate, inserts on both sides of the waste slag car, the mortar car, and the shield section car, spring buckles on the outer wall of the inserts, and positioning pins on the support plate.

[0010] In a preferred embodiment of the shield material transport device of the present invention, any one of the waste slag car, the mortar car, and the shield segment car can be connected to the mobile unit through the connecting unit.

[0011] In a preferred embodiment of the shield material transport device of the present invention, the bottom of the waste slag car, the mortar car, and the shield segment car are all semi-circular, and the upper surface of the support plate is in contact with the bottom semi-circular surface of the waste slag car, the mortar car, and the shield segment car.

[0012] In a preferred embodiment of the shield material transport device of the present invention, the front and rear ends of the plurality of mobile units can be connected in series to form a transport vehicle group.

[0013] As a preferred embodiment of the shield material transport device of the present invention, the buffer assembly includes a chute formed on the crossbeam, a slide block slidably disposed on the chute, a damping shock absorber disposed between the bottom of the slide block and the crossbeam, and a connecting plate rotatably disposed on the top of the slide block.

[0014] As a preferred embodiment of the shield tunneling material transport device of the present invention, the mortar car includes a first car, a rotating rod rotatably disposed in the inner cavity of the first car, a motor installed on the first car, and a stirring fan disposed on the rotating rod;

[0015] The output end of the motor is fixedly connected to one end of the rotating rod.

[0016] In a preferred embodiment of the shield material transport device of the present invention, the insert blocks are installed on both sides of the first carriage.

[0017] As a preferred embodiment of the shield material transport device of the present invention, the shield segment carriage includes a second carriage, an mounting plate vertically disposed on the top of the second carriage, a bearing plate disposed between the two mounting plates, a fixing plate rotatably disposed on the mounting plate, a permanent magnet embedded in the fixing plate, a limiting plate slidably disposed on the mounting plate, positioning posts disposed at both ends of the limiting plate, a side support frame disposed on the top of the second carriage and located on both sides of the mounting plate, and a limiting frame mounted on the side support frame.

[0018] In a preferred embodiment of the shield material transport device of the present invention, the two ends of the limiting plate are inserted into the mounting plate, the fixing plate is flipped over and snapped into the positioning column, and the permanent magnet is used to magnetically attract the fixing plate to achieve horizontal limiting and fixing.

[0019] In a preferred embodiment of the shield material transport device of the present invention, the insert blocks are installed on both sides of the second carriage.

[0020] The beneficial effects of the shield tunneling material transport device of the present invention are as follows:

[0021] 1. Through the cooperation of the connecting unit's plugs, slots, spring clips, and positioning pins, rapid assembly and disassembly between the carriage and the mobile unit is achieved—insertion locks, pressing releases, all without tools. The same mobile unit can be quickly replaced with a waste slag carriage, mortar carriage, or tunnel segment carriage according to construction needs, achieving multi-purpose use. This allows construction units to flexibly meet the diverse material transportation needs of the construction site with only a small number of mobile units and various carriages, significantly reducing equipment procurement costs, improving equipment utilization, and effectively solving the problems of inflexible deployment and high idle rates of single-function transport vehicles.

[0022] 2. Multiple mobile units can be connected in series through a connecting frame to form a transport vehicle group. They can be flexibly grouped according to the tunneling speed, which greatly increases the total amount of transported in a single trip and effectively matches the rapid tunneling rhythm of small TBM shield machines. The bottom of the carriage adopts a semi-circular design, which fits with the arc-shaped upper surface of the support plate, increasing the contact area and improving the stability of transportation.

[0023] The mortar truck is equipped with a built-in mixing device, which continuously mixes the mortar during transportation to prevent it from solidifying and clumping, ensuring its usability upon arrival at the construction site. The shield segment truck uses a structure consisting of mounting plates, bearing plates, fixing plates, limiting plates, and limiting frames to limit and fix the shield segments at multiple angles, preventing them from tipping over, colliding, or being damaged during transportation, thus ensuring material safety.

[0024] 4. The damping shock absorbers in the buffer unit can effectively absorb and attenuate the impact and vibration caused by uneven road surfaces during transportation in the tunnel, providing comprehensive buffer protection for the load-bearing unit. In particular, for the shield segment carriage, the buffer unit and the shield segment carriage itself work together to protect the shield segment from the two dimensions of "shock absorption" and "fixation", effectively preventing the shield segment from tipping over, colliding or being damaged at the edges and corners due to bumps during transportation, and significantly reducing material loss. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the present invention.

[0027] Figure 2 This is a schematic diagram of the structure of the moving unit in this invention.

[0028] Figure 3 This is a cross-sectional view of the moving unit in this invention.

[0029] Figure 4 This is a partial structural diagram of the waste slag carriage in this invention.

[0030] Figure 5 This is a schematic diagram of the mortar carriage in this invention.

[0031] Figure 6 This is a cross-sectional view of the mortar carriage in this invention.

[0032] Figure 7 This is a schematic diagram of the structure of the shield tunnel section carriage in this invention.

[0033] In the diagram: 100, Moving unit; 110, Frame; 120, Connecting frame; 130, Crossbeam; 140, Traveling wheel; 200, Buffer unit; 210, Buffer assembly; 211, Slide groove; 212, Slide seat; 213, Damping shock absorber; 214, Connecting plate; 220, Support plate; 400, Bearing unit; 410, Waste slag car body; 420, Mortar car body; 421, First car body; 422, Turning... 423. Moving rod; 424. Motor; 430. Mixing fan; 431. Shield segment carriage; 432. Second carriage; 433. Mounting plate; 434. Bearing plate; 435. Fixing plate; 436. Permanent magnet; 437. Limiting plate; 438. Positioning column; 439. Side support frame; 500. Limiting frame; 510. Connecting unit; 520. Slot; 530. Insert block; 540. Spring buckle; 550. Positioning pin. Detailed Implementation

[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0037] Reference Figures 1 to 4 This is the first embodiment of the present invention. This embodiment provides a shield material transportation device, including a mobile unit 100, including a frame 110, a connecting frame 120 disposed at the front and rear ends of the frame 110, a crossbeam 130 disposed on the frame 110, and a traveling wheel 140 disposed on the frame 110.

[0038] Among them, the front and rear ends of multiple mobile units 100 can be connected in series to form a transport vehicle group.

[0039] It should be noted that the frame 110 is a frame structure. The connecting frame 120 is set at the front and rear ends of the frame 110 and is used to connect adjacent frames 110 through connecting pins "conventional connectors in the art" when multiple moving units 100 are connected in series. The crossbeam 130 is fixedly set on the frame 110 and is used to install the buffer unit 200 and strengthen the frame 110. The traveling wheel 140 is set at the bottom of the frame 110. The traveling wheel 140 is a track wheel and travels along a pre-set track in the tunnel.

[0040] Multiple mobile units 100 can be connected in series via front and rear connecting frames 120 to form a transport vehicle group, which can be flexibly grouped according to the actual transport volume to adapt to the rapid tunneling rhythm of small TBM shield machines.

[0041] The buffer unit 200 includes a buffer assembly 210 disposed on the crossbeam 130 and a support plate 220 disposed at the buffer end of the buffer assembly 210.

[0042] The buffer unit 200 is disposed on the crossbeam 130 of the moving unit 100 and is used to provide shock absorption and buffer for the material it carries.

[0043] The supporting unit 400 includes a waste slag carriage 410, a mortar carriage 420, and a shield segment carriage 430;

[0044] Among them, any one of the waste slag carriage 410, mortar carriage 420, and shield section carriage 430 can be connected to the moving unit 100 through the connecting unit 500;

[0045] The bottoms of the waste slag carriage 410, the mortar carriage 420, and the shield section carriage 430 are all semi-circular, and the upper surface of the support plate 220 is in contact with the bottom semi-circular surface of the waste slag carriage 410, the mortar carriage 420, and the shield section carriage 430.

[0046] It should be noted that one of the three types of carriages can be selected and installed on the mobile unit 100 according to actual construction needs, so as to achieve multiple uses of one vehicle. The bottom of the three types of carriages is semi-circular, which fits into the arc-shaped upper surface of the support plate 220, increasing the contact area and improving the transportation stability.

[0047] The connecting unit 500 includes slots 510 on both sides of the support plate 220, inserts 520 on both sides of the waste slag car 410, mortar car 420, and shield section car 430, spring buckles 530 on the outer wall of the inserts 520, and positioning pins 540 on the support plate 220.

[0048] It should be noted that the connecting unit 500 is used to realize the quick connection and replacement between the mobile unit 100 and the waste slag carriage 410, mortar carriage 420 or shield section carriage 430. The connecting unit 500 includes a slot 510, a plug 520, a spring buckle 530 and a positioning pin 540.

[0049] The slots 510 are located on both sides of the support plate 220. The inserts 520 are located on the outer walls of the waste slag car 410, mortar car 420, and shield section car 430, corresponding to the positions of the slots 510 and matching their shapes. The spring buckles 530 are located on the outer walls of the inserts 520, which are elastic buckle structures in the prior art. The positioning pins 540 are located on the support plate 220, below the slots 510.

[0050] In use, align the inserts 520 on both sides of the carriage with the slots 510 on both sides of the support plate 220 and insert them. When the inserts 520 are inserted into place, the spring buckle 530 automatically pops out and engages with the positioning pin 540 to lock, thus achieving a quick and fixed connection between the carriage and the mobile unit 100.

[0051] When the carriage needs to be replaced, press the spring buckle 530 to disengage it from the positioning pin 540, and at the same time pull the insert 520 out of the slot 510 to separate the carriage from the moving unit 100. Then install another carriage in the same way. The whole replacement process is simple and can be completed without tools.

[0052] like Figures 2 to 3 As shown, as an optional embodiment, the buffer assembly 210 includes a groove 211 formed on the crossbeam 130, a slide block 212 slidably disposed on the groove 211, a damping shock absorber 213 disposed between the bottom of the slide block 212 and the crossbeam 130, and a connecting plate 214 rotatably disposed on the top of the slide block 212.

[0053] It should be noted that the buffer assembly 210 includes a slide 211, a slide block 212, a damping shock absorber 213, and a connecting plate 214.

[0054] A chute 211 is formed on the crossbeam 130, and a slide block 212 is slidably disposed within the chute 211. A damping shock absorber 213 is disposed between the bottom of the slide block 212 and the crossbeam 130 to absorb and attenuate vibrations during transportation. A connecting plate 214 is rotatably disposed on the top of the slide block 212 and can swing within a certain angle range to accommodate the slight displacement of the bottom of the carriage during vibration. There are multiple sets of connecting plates 214, which are mirror images disposed on both sides of the bottom of the support plate 220. The support plate 220 is fixedly connected to the upper end of the connecting plate 214. The support plate 220 is arc-shaped, and its upper surface is arc-shaped, which matches the semi-circular surface of the bottom of the carriage to support the carriage.

[0055] like Figures 5 to 6 As shown, as an optional embodiment: the mortar truck 420 includes a first truck 421, a rotating rod 422 rotatably disposed in the inner cavity of the first truck 421, a motor 423 mounted on the first truck 421, and a mixing fan 424 disposed on the rotating rod 422;

[0056] The output end of motor 423 is fixedly connected to one end of rotating rod 422.

[0057] In one optional embodiment, the insert 520 is installed on both sides of the first carriage 421.

[0058] It should be noted that the first compartment 421 is a box structure with an open top, used to hold mortar. The rotating rod 422 is rotatably mounted in the inner cavity of the first compartment 421 and extends along the length of the first compartment 421. The motor 423 is mounted on the outer wall of the first compartment 421, and its output end is fixedly connected to one end of the rotating rod 422. The stirring fan 424 is fixedly mounted on the rotating rod 422 and located in the inner cavity of the first compartment 421.

[0059] In use, when the motor 423 starts, it drives the rotating rod 422 and the mixing fan 424 to rotate, continuously mixing the mortar in the first compartment 421 to prevent the mortar from solidifying and clumping during transportation, ensuring the fluidity and usability of the mortar when it arrives at the construction site. Insert blocks 520 are installed on both sides of the first compartment 421 for connection with the moving unit 100.

[0060] like Figure 7As shown, in one optional embodiment, the shield tunnel segment carriage 430 includes a second carriage 431, an mounting plate 432 vertically disposed on the top of the second carriage 431, a bearing plate 433 disposed between the two mounting plates 432, a fixing plate 434 rotatably disposed on the mounting plate 432, a permanent magnet 435 embedded in the fixing plate 434, a limiting plate 436 slidably disposed on the mounting plate 432, positioning posts 437 disposed at both ends of the limiting plate 436, a side support frame 438 disposed on the top of the second carriage 431 and located on both sides of the mounting plate 432, and a limiting frame 439 mounted on the side support frame 438.

[0061] The two ends of the limiting piece 436 are inserted into the mounting plate 432, the fixing piece 434 is flipped and snapped into the positioning post 437, and is magnetically attracted to the mounting plate 432 by the permanent magnet 435 to achieve horizontal limiting and fixing.

[0062] The insert 520 is installed on both sides of the second carriage 431.

[0063] It should be noted that the second carriage 431 is a box structure with an open top. Two mounting plates 432 are vertically set on the top of the second carriage 431 and arranged relatively parallel to each other, forming a space to accommodate the shield segment.

[0064] The support plate 433 is disposed between the two mounting plates 432 to support the lower end of the shield segment. The fixing plate 434 is rotatably disposed on the mounting plate 432 and can be flipped. The permanent magnet 435 is embedded in the fixing plate 434. When the fixing plate 434 is flipped to fit against the mounting plate 432, it is attracted to the mounting plate 432 by the magnetic attraction of the permanent magnet 435, thus achieving rapid fixation.

[0065] The limiting piece 436 is slidably mounted on the mounting plate 432 and can slide up and down along the mounting plate 432. The positioning post 437 is set at both ends of the limiting piece 436 and is used to cooperate with the fixing piece 434 to realize the positioning of the limiting piece 436. The side support frame 438 is set on the top of the second carriage 431 and located on both sides of the mounting plate 432, and is used to support the shield segment from the side. The limiting frame 439 is installed on the side support frame 438 and is used to limit the shield segment on both sides.

[0066] The shield segments are made of concrete or reinforced concrete, which are relatively brittle and sensitive to vibration and impact during transportation. The damping shock absorber 213 of the buffer unit 200 effectively absorbs the vibration transmitted from the road surface. Combined with the multi-angle limiting structure of the shield segment carriage 430, the shield segments are protected by both "flexible" vibration isolation and "rigid" structural limiting and fixing during transportation. This dual protection ensures the safety of the shield segment transportation.

[0067] During use, when installing the shield segment, the shield segment is placed vertically between two mounting plates 432, with its lower end supported by a bearing plate 433 and its sides limited by limiting frames 439. The limiting plates 436 are inserted into the mounting plates 432 at both ends. Then, the fixing plate 434 is flipped over, causing it to snap into the positioning post 437 and magnetically attached to the mounting plate 432 by a permanent magnet 435, thus fixing the limiting plate 436. Through the coordinated action of the mounting plates 432, bearing plates 433, fixing plates 434, limiting plates 436, side support frames 438, and limiting frames 439, the shield segment is fixed at multiple angles, preventing it from tipping over, colliding, or being damaged during transportation. Insert blocks 520 are installed on both sides of the second carriage 431 for connection with the moving unit 100.

[0068] Importantly, the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A shield tunneling material transport device, characterized in that: include, The mobile unit (100) includes a frame (110), a connecting frame (120) disposed at the front and rear ends of the frame (110), a crossbeam (130) disposed on the frame (110), and a traveling wheel (140) disposed on the frame (110). The buffer unit (200) includes a buffer assembly (210) disposed on the crossbeam (130) and a support plate (220) disposed at the buffer end of the buffer assembly (210). The load-bearing unit (400) includes a waste slag car (410), a mortar car (420), and a shield section car (430). The connecting unit (500) includes slots (510) opened on both sides of the support plate (220), waste slag car (410), mortar car (420) and shield section car (430) with inserts (520) on both sides, spring buckles (530) on the outer wall of the inserts (520), and positioning pins (540) on the support plate (220).

2. The shield tunneling material transport device as described in claim 1, characterized in that: Any one of the waste slag carriage (410), the mortar carriage (420), and the shield section carriage (430) can be connected to the moving unit (100) through the connecting unit (500).

3. The shield tunneling material transport device as described in claim 1, characterized in that: The bottoms of the waste slag carriage (410), the mortar carriage (420), and the shield section carriage (430) are all semi-circular, and the upper surface of the support plate (220) is in contact with the bottom semi-circular surface of the waste slag carriage (410), the mortar carriage (420), and the shield section carriage (430).

4. The shield tunneling material transport device as described in claim 1, characterized in that: The front and rear ends of the multiple mobile units (100) can be connected in series to form a transport vehicle group.

5. The shield tunneling material transport device as described in claim 1, characterized in that: The buffer assembly (210) includes a groove (211) opened on the crossbeam (130), a slide block (212) slidably disposed on the groove (211), a damping shock absorber (213) disposed between the bottom of the slide block (212) and the crossbeam (130), and a connecting plate (214) rotatably disposed on the top of the slide block (212).

6. The shield tunneling material transport device as described in claim 1, characterized in that: The mortar truck (420) includes a first truck (421), a rotating rod (422) rotatably disposed in the inner cavity of the first truck (421), a motor (423) installed on the first truck (421), and a mixing fan (424) disposed on the rotating rod (422). The output end of the motor (423) is fixedly connected to one end of the rotating rod (422).

7. The shield tunneling material transport device as described in claim 6, characterized in that: The insert (520) is installed on both sides of the first carriage (421).

8. The shield tunneling material transport device as described in claim 1, characterized in that: The shield tunnel segment carriage (430) includes a second carriage (431), an mounting plate (432) vertically disposed on the top of the second carriage (431), a bearing plate (433) disposed between the two mounting plates (432), a fixing plate (434) rotatably disposed on the mounting plate (432), a permanent magnet (435) embedded in the fixing plate (434), a limiting plate (436) slidably disposed on the mounting plate (432), positioning posts (437) disposed at both ends of the limiting plate (436), a side support frame (438) disposed on the top of the second carriage (431) and located on both sides of the mounting plate (432), and a limiting frame (439) installed on the side support frame (438).

9. The shield tunneling material transport device as described in claim 8, characterized in that: The two ends of the limiting piece (436) are inserted into the mounting plate (432), the fixing piece (434) is flipped over, the positioning post (437) is inserted, and the permanent magnet (435) magnetically attracts the fixing piece to the mounting plate (432) to achieve horizontal limiting and fixing.

10. The shield tunneling material transport device as described in claim 8, characterized in that: The insert (520) is installed on both sides of the second carriage (431).

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