A bottom-unloading structure of a tunnel construction spoil transport vehicle compartment

Abstract

The utility model relates to tunnel construction equipment technical field, and disclose a kind of bottom unloading structure of tunnel construction slag transport carriage, including transport case, the both sides of transport case are rotatably connected with lug block by shaft, the bottom of lug block is fixedly connected with bottom plate, the both sides of bottom plate are rotatably connected with connecting plate and damper rod, one end of connecting plate is rotatably connected with triangular plate, the back of triangular plate is connected with slider by bolt, the top of slider is fixedly connected with top block, the top of top block is fixedly connected with self-locking butt joint mechanism. The utility model cooperates by hydraulic rod and self-locking butt joint mechanism;When transport case reaches the top of unloading pit, hydraulic rod operation makes sleeve pipe drive wedge to move, separate by the interaction of conical ring and hemispherical block, let bottom plate automatically unfold under the gravity of slag and unload;After unloading is completed, hydraulic rod is operated again to drive relevant components linkage, so that bottom plate is re-closed, improve the efficiency of slag transport unloading in tunnel construction.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction equipment technology, specifically to a bottom unloading structure for a tunnel construction waste transport vehicle. Background Technology

[0002] During tunnel construction, the excavated soil is typically transported by trucks: after excavation work generates excavated soil, it is loaded into the truck bed, and then the truck travels along a pre-set track inside the tunnel to transport the soil to a designated unloading area (unloading pit), completing the transfer of the excavated soil. This transportation method must meet the passage requirements of the narrow space inside the tunnel, while ensuring that the truck has sufficient load-bearing capacity and driving stability to adapt to the complex construction environment.

[0003] However, the unloading structure of existing tunnel construction waste transport trucks has significant defects: most traditional trucks use side or rear unloading methods. During the unloading process, due to the limited tilt angle of the truck bed or the high viscosity of the waste, some waste is easily left at the bottom of the truck bed and cannot be completely unloaded. Frequent waste residue not only requires regular manual cleaning, increasing operating costs and labor intensity, but also reduces the effective volume of the truck bed due to the residual waste, thus reducing the amount transported per trip and indirectly affecting construction efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a bottom-discharge structure for a tunnel construction waste transport vehicle. It features a bottom-discharge structure, a large opening during unloading, and facilitates the complete removal of waste, thus solving the aforementioned technical problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a bottom unloading structure for a tunnel construction waste transport vehicle, comprising a transport box, with lugs rotatably connected to both sides of the transport box via shafts, a base plate fixedly connected to the bottom end of the lugs, connecting plates and damping rods rotatably connected to both sides of the base plate, a triangular plate rotatably connected to one end of the connecting plate, a slider connected to the back of the triangular plate via bolts, a top block fixedly connected to the top surface of the slider, a self-locking docking mechanism fixedly connected to the top surface of the top block, a hydraulic rod connected to the top of the self-locking docking mechanism via bolts, and a guide rod slidably connected inside the slider;

[0008] The self-locking docking mechanism includes a vertical rod, a sleeve rod fixedly connected to the top surface of the vertical rod, a conical ring sleeved on the outer surface of the sleeve rod, a hemispherical block fixedly connected to the top end of the sleeve rod, a sleeve sleeved on the outer surface of the vertical rod, a screw rod inserted into the inside of the sleeve, a wedge block threaded to one end of the screw rod, and a spring sleeved on the outer surface of the screw rod.

[0009] Preferably, the two sides of the transport box are rotatably connected to track wheels, and the front end of the transport box is fixedly connected to a traction frame.

[0010] Preferably, a vertical rod is fixedly connected to the top surface of the top block, the hydraulic rod is fixedly connected to the top surface of the transport box by bolts, and the telescopic end of the hydraulic rod is connected to a sleeve by bolts.

[0011] Preferably, the inner wall of the sleeve has two square cavities, and a wedge is slidably connected in the two square cavities. The outer periphery of the sleeve has two round holes that communicate with the square cavities. The screw passes through the round holes of the sleeve and is threadedly connected to the wedge.

[0012] Preferably, the guide rod is bolted or welded to the front and rear sides of the transport box, and two connecting plates are rotatably connected to the back of the triangular plate.

[0013] Preferably, the end of the damping rod away from the base plate is rotatably connected to the front and rear sides of the transport box via a pin, and the top surface of the base plate is bolted with a wear-resistant and smooth liner.

[0014] Compared with the prior art, this utility model provides a bottom unloading structure for a tunnel construction waste transport vehicle, which has the following beneficial effects:

[0015] 1. This utility model, through the cooperation of a hydraulic rod and a self-locking docking mechanism, can complete unloading and closing without manual intervention. When the transport box reaches the top of the unloading pit, the hydraulic rod operation causes the sleeve to move the wedge block. Separation is achieved through the interaction of the conical ring and the hemispherical block, allowing the bottom plate to automatically unfold and unload under the gravity of the excavated soil. After unloading, operating the hydraulic rod again can drive the relevant components to re-close the bottom plate, greatly saving labor costs, improving the efficiency of excavated soil transportation and unloading in tunnel construction, and meeting the automation needs of tunnel construction.

[0016] 2. In this utility model, when the bottom plate unfolds, the damping rod will extend accordingly, using its damping characteristics to slow down the unfolding speed of the bottom plate, avoiding the sudden and complete opening of the bottom plate that would cause a large amount of slag to gush out instantly, reducing the impact on the transport box and unloading area, and reducing equipment vibration and wear; in addition, the wear-resistant and smooth liner on the top surface of the bottom plate can reduce the friction with the slag, allowing the slag to slide down smoothly, further improving the stability of the unloading process and preventing slag from splashing or the unloading position from shifting. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the base plate of this utility model after it is closed;

[0018] Figure 2 This utility model Figure 1 A magnified view of part A in the diagram;

[0019] Figure 3 This is a three-dimensional schematic diagram of the unfolded base plate of this utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of the self-locking docking mechanism in this utility model.

[0021] The components include: 1. Transport box; 2. Ear block; 3. Base plate; 4. Connecting plate; 5. Damping rod; 6. Triangular plate; 7. Slider; 8. Top block; 9. Self-locking docking mechanism; 91. Vertical rod; 92. Sleeve rod; 93. Conical ring; 94. Hemispherical block; 95. Sleeve; 96. Screw; 97. Wedge; 98. Spring; 10. Hydraulic rod; 11. Guide rod; 12. Track wheel; 13. Wear-resistant smooth liner. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 A bottom unloading structure for a tunnel construction waste transport vehicle includes a transport box 1. Lugs 2 are rotatably connected to both sides of the transport box 1 via shafts. A base plate 3 is fixedly connected to the bottom end of the lugs 2. A connecting plate 4 and a damping rod 5 are rotatably connected to both sides of the base plate 3. A triangular plate 6 is rotatably connected to one end of the connecting plate 4. A slider 7 is bolted to the back of the triangular plate 6. A top block 8 is fixedly connected to the top surface of the slider 7. A self-locking docking mechanism 9 is fixedly connected to the top surface of the top block 8. A hydraulic rod 10 is bolted to the top of the self-locking docking mechanism 9. A guide rod 11 is slidably connected inside the slider 7.

[0024] The self-locking docking mechanism 9 includes a vertical rod 91, a sleeve rod 92 fixedly connected to the top surface of the vertical rod 91, a conical ring 93 sleeved on the outer surface of the sleeve rod 92, and a hemispherical block 94 fixedly connected to the top end of the sleeve rod 92. A sleeve 95 is sleeved on the outer surface of the vertical rod 91, a screw 96 is inserted into the inside of the sleeve 95, a wedge block 97 is threaded to one end of the screw 96, and a spring 98 is sleeved on the outer surface of the screw 96.

[0025] Specifically, the two sides of the transport box 1 are rotatably connected to track wheels 12, and the front end of the transport box 1 is fixedly connected to a traction frame.

[0026] Specifically, a vertical rod 91 is fixedly connected to the top surface of the top block 8, and a hydraulic rod 10 is fixedly connected to the top surface of the transport box 1 by bolts, and the telescopic end of the hydraulic rod 10 is connected to the sleeve 95 by bolts.

[0027] The advantage is that during tunnel construction, a track needs to be pre-set on the ground, and an unloading pit needs to be excavated at a certain stage of the track. The track wheels 12 set on both sides of the transport box 1 can roll on the track. A traction frame is set on the front of the transport box 1 to connect the traction equipment. The traction equipment, together with the traction frame and the track wheels 12, can make the transport box 1 move on the track, thereby transporting the loaded slag to the top of the unloading pit.

[0028] Specifically, two square cavities are formed in the inner wall of the sleeve 95, and wedges 97 are slidably connected in the two square cavities. Two round holes are formed on the outer periphery of the sleeve 95, and the two round holes connect to the square cavities. The screw 96 passes through the round holes of the sleeve 95 and is threadedly connected to the wedges 97.

[0029] The advantage is that when the transport box 1 is pulled to the top of the unloading pit, the hydraulic rod 10 is operated to make its telescopic end drive the sleeve 95 to move downward. At this time, the sleeve 95 drives the two wedges 97 slidably connected in its square cavity to move downward. When the two wedges 97 move downward, they will contact the conical ring 93. At this time, the wedges 97 are squeezed by the conical surface of the conical ring 93, which will compress the spring 98 and enter the square cavity of the sleeve 95. After the hydraulic rod 10 moves down a set distance, it begins to contract and drive the sleeve 95 to move upward. At this time, due to the friction, the wedges 97 will drive the conical ring 93 to rise until the top surface of the conical ring 93 contacts the bottom surface of the hemispherical block 94. When the sleeve 95 continues to rise, the sleeve 95 will separate from the hemispherical block 94. In this way, the slag inside the transport box 1 will push the bottom plate 3 to unfold under the action of gravity. Thus, the slag inside the transport box 1 can be discharged into the unloading pit immediately, thereby completing the purpose of automatic unloading of slag.

[0030] Specifically, the guide rod 11 is bolted or welded to the front and rear sides of the transport box 1, and two connecting plates 4 are rotatably connected to the back of the triangular plate 6.

[0031] The advantage is that after the slag is completely unloaded, the hydraulic rod 10 is operated again to move the sleeve 95 downward. The sleeve 95 drives the wedge 97 to contact the spherical surface of the hemispherical block 94 and then abuts against the wedge 97 until the wedge 97 moves down to the bottom surface of the hemispherical block 94. Under the action of the spring 98, the wedge 97 will be locked on the lower surface of the hemispherical block 94. Then the telescopic end of the hydraulic rod 10 retracts and drives the sleeve 95 upward. The sleeve 95, together with the wedge 97, drives the hemispherical block 94, the sleeve rod 92 and the upright rod 91 upward, which in turn drives the top block 8, the slider 7 and the triangular plate 6 upward. In this way, the triangular plate 6 drives the connecting plate 4, and the connecting plate 4 drives the bottom plate 3 to close again on the lower surface of the transport box 1.

[0032] Specifically, the end of the damping rod 5 away from the base plate 3 is rotatably connected to the front and rear sides of the transport box 1 via a pin, and the top surface of the base plate 3 is connected with a wear-resistant and smooth liner 13 by bolts.

[0033] The advantages are that during the automatic unfolding of the two base plates 3, the base plates 3 pull the connecting plate 4, causing the triangular plate 6 and the slider 7 to slide down along the guide rod 11, while simultaneously causing the damping rod 5 to extend. The sliding of the slider 7 along the guide rod 11 provides a stable guide for the unfolding of the base plates 3. The bottom end of the guide rod 11 has a limiting block to prevent the slider 7 from detaching from the guide rod 11, thereby limiting the maximum opening angle of the two base plates 3. The extension of the damping rod 5 can utilize its damping characteristics to effectively slow down the unfolding speed of the base plates 3, preventing the base plates 3 from suddenly opening completely. This reduces the impact force on the transport box 1 and unloading area when a large amount of slag is suddenly discharged. This not only reduces the vibration and wear of the equipment, but also allows the slag to be discharged more smoothly, avoiding slag splashing or unloading position deviation caused by excessive impact, thus improving the safety and stability of the unloading process. The wear-resistant and smooth liner 13 on the upper surface of the base plates 3 helps to reduce the friction between the slag and the slag, allowing the slag to slide out more smoothly during the discharge process.

[0034] In use, the track wheels 12 on both sides of the transport box 1 roll on a preset track, and in conjunction with the traction frame and traction equipment on the front, the transport box 1 and the slag loaded inside are moved to above the unloading pit; then, the hydraulic rod 10 is operated so that its telescopic end drives the sleeve 95 downward. After the wedge 97 inside the sleeve 95 contacts the conical ring 93, it is squeezed into the square cavity. The hydraulic rod 10 moves down a set distance and then retracts, driving the sleeve 95 upward. Under the action of friction, the wedge 97 drives the conical ring 93 to rise until it contacts the bottom surface of the hemispherical block 94. After the sleeve 95 continues to rise, it separates from the hemispherical block 94, and the transport box 1... Under the action of gravity, the slag inside pushes the bottom plate 3 to unfold, and the slag is discharged into the unloading pit to complete the unloading. After the slag is unloaded, the hydraulic rod 10 is operated again to drive the sleeve 95 to move downward. The wedge 97 contacts the spherical surface of the hemispherical block 94 and moves down to its bottom surface. Under the action of the spring 98, the wedge 97 is stuck on the lower surface of the hemispherical block 94. The extension end of the hydraulic rod 10 retracts and drives the sleeve 95 to move upward. Through the wedge 97, the hemispherical block 94, the sleeve rod 92, and the upright rod 91 move upward, which in turn drives the top block 8, the slider 7, and the triangular plate 6 to move upward. The triangular plate 6 drives the bottom plate 3 to close again on the lower surface of the transport box 1 through the connecting plate 4.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bottom unloading structure for a tunnel construction waste transport vehicle, comprising a transport container (1), characterized in that: The transport box (1) has ear blocks (2) rotatably connected to both sides via shafts. The bottom end of the ear block (2) is fixedly connected to a base plate (3). The bottom plate (3) is rotatably connected to both sides of a connecting plate (4) and a damping rod (5). One end of the connecting plate (4) is rotatably connected to a triangular plate (6). The back of the triangular plate (6) is connected to a slider (7) via bolts. The top surface of the slider (7) is fixedly connected to a top block (8). The top surface of the top block (8) is fixedly connected to a self-locking docking mechanism (9). The top end of the self-locking docking mechanism (9) is connected to a hydraulic rod (10) via bolts. The slider (7) is slidably connected to a guide rod (11). The self-locking docking mechanism (9) includes a vertical rod (91), a sleeve rod (92) is fixedly connected to the top surface of the vertical rod (91), a conical ring (93) is sleeved on the outer surface of the sleeve rod (92), and a hemispherical block (94) is fixedly connected to the top end of the sleeve rod (92). A sleeve (95) is sleeved on the outer surface of the vertical rod (91), a screw rod (96) is inserted into the inside of the sleeve rod (95), a wedge block (97) is threaded to one end of the screw rod (96), and a spring (98) is sleeved on the outer surface of the screw rod (96).

2. The bottom unloading structure of a tunnel construction waste transport vehicle according to claim 1, characterized in that: The transport box (1) is rotatably connected to two sides of a track wheel (12), and the front end of the transport box (1) is fixedly connected to a traction frame.

3. The bottom unloading structure of a tunnel construction waste transport vehicle according to claim 1, characterized in that: The top surface of the top block (8) is fixedly connected to a vertical rod (91), and the hydraulic rod (10) is fixedly connected to the top surface of the transport box (1) by bolts, and the telescopic end of the hydraulic rod (10) is connected to a sleeve (95) by bolts.

4. The bottom unloading structure of a tunnel construction waste transport vehicle according to claim 1, characterized in that: Two square cavities are formed in the inner wall of the sleeve (95), and a wedge (97) is slidably connected in the two square cavities. Two round holes are formed on the outer periphery of the sleeve (95), and the two round holes communicate with the square cavities. The screw (96) passes through the round hole of the sleeve (95) and is threadedly connected to the wedge (97).

5. The bottom unloading structure of a tunnel construction waste transport vehicle according to claim 1, characterized in that: The guide rod (11) is bolted or welded to the front and rear sides of the transport box (1), and the back of the triangular plate (6) is rotatably connected to two connecting plates (4).

6. The bottom unloading structure of a tunnel construction waste transport vehicle according to claim 1, characterized in that: The damping rod (5) is rotatably connected to the front and rear sides of the transport box (1) by a pin at one end away from the base plate (3), and the top surface of the base plate (3) is connected to a wear-resistant and smooth liner (13) by bolts.

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