Tunnel construction device

Abstract

The utility model discloses a tunnel construction device which comprises a TBM hard rock heading machine, a tight supporting shield is arranged on the head portion of the TBM hard rock heading machine, a containing groove is formed in the top of the TBM hard rock heading machine, the containing groove is located behind the tight supporting shield, a lifting mechanism and a stone crushing mechanism are arranged in the containing groove, and the lifting mechanism and the stone crushing mechanism are arranged in the containing groove. The lifting mechanism is provided with a stone receiving groove and an overturning mechanism used for driving the stone receiving groove to overturn and pour stones towards the stone crushing mechanism. The tunnel construction device is small in stone taking construction difficulty, high in efficiency, small in stone taking risk and not prone to causing harm to personnel and equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of TBM hard rock tunneling machines, in particular to a tunnel construction device. Background Art

[0002] During the construction of horizontal tunnels and inclined shafts, TBM hard rock tunnel boring machines often encounter large dangerous rocks above. Since existing TBM hard rock tunnel boring machines are not equipped with stone removal devices, they often need to use external devices to fix or remove rocks. For example, during horizontal tunnel construction, the dangerous rocks are fixed with strong support methods such as "anchors, nets, and spraying". For example, during inclined shaft construction, rocks are generally removed by drilling holes in the ground to the dangerous rocks. On the one hand, the construction is difficult and inefficient. On the other hand, removing rocks is risky and can easily cause damage to personnel and equipment. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the existing technology and provide a tunnel construction device with low difficulty and high efficiency in stone removal, low risk in stone removal, and not prone to causing damage to personnel and equipment.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A tunnel construction device includes a TBM hard rock tunnel boring machine. The head of the TBM hard rock tunnel boring machine is provided with a support shield. The top of the TBM hard rock tunnel boring machine is provided with a receiving groove, the receiving groove is located behind the support shield, and a lifting mechanism and a stone crushing mechanism are provided in the receiving groove. The lifting mechanism is provided with a stone receiving groove and a turning mechanism for driving the stone receiving groove to turn the stone toward the stone crushing mechanism.

[0006] As a further improvement of the above technical solution:

[0007] A buffer pad is provided in the stone receiving groove.

[0008] The buffer pad comprises a lifting plate and an elastic member, wherein the elastic member is fixed on the bottom wall of the stone receiving groove, and the lifting plate is arranged on the elastic member.

[0009] The elastic member is a spring.

[0010] The front wall and the rear wall of the stone receiving groove are both inclined upwards.

[0011] A hanging plate hanging inwards is provided on the top of the front wall of the stone receiving trough.

[0012] The turnover mechanism comprises a mounting seat and a telescopic cylinder. The mounting seat is fixed on the lifting mechanism. One end of the telescopic cylinder is hinged to the mounting seat, and the other end is hinged to the stone receiving groove.

[0013] A hinged seat is provided at the bottom of the stone receiving trough, and the hinged seat is hinged to the lifting mechanism.

[0014] The telescopic cylinder is a pneumatic cylinder, an oil cylinder or an electric cylinder.

[0015] The stone crushing mechanism is located behind the lifting mechanism.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] The construction process of the tunnel construction device of this utility model, taking the construction of an inclined tunnel as an example, begins with the TBM (Turbine Boring Machine) excavating upward at an angle. When a dangerous rock is located above the stone receiving trough, it falls into the trough. The lifting mechanism lowers the trough to a predetermined position. Then, the flipping mechanism flips the trough toward the stone crushing mechanism, dumping the dangerous rock into the crushing mechanism. Finally, the crushing mechanism crushes the dangerous rock. This tunnel construction device not only reduces the difficulty and efficiency of stone removal, but also reduces the risk of stone removal, preventing damage to personnel and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a structural schematic diagram of the tunnel construction device before the stone connection trough is connected to the stone.

[0019] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0020] Figure 3 The utility model is a structural schematic diagram of the tunnel construction device when the stone connecting trough is connected to the stone.

[0021] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0022] Figure 5 The utility model is a structural schematic diagram of the tunnel construction device when the stone receiving chute is lowered to deliver stones.

[0023] Figure 6 yes Figure 5 Schematic diagram of the enlarged structure at point C in the middle.

[0024] Figure 7 The utility model is a structural schematic diagram of the tunnel construction device when the stone receiving trough is turned over and the stones are poured out.

[0025] Figure 8 yes Figure 7 Schematic diagram of the enlarged structure at point D in the middle.

[0026] The numbers in the figure represent:

[0027] 1. TBM (hard rock tunnel boring machine); 2. Support shield; 3. Receiving trough; 4. Lifting mechanism; 5. Stone crushing mechanism; 6. Stone receiving trough; 61. Articulated seat; 7. Flipping mechanism; 71. Mounting seat; 72. Telescopic cylinder; 8. Buffer pad; 81. Lifting plate; 82. Elastic member; 9. Overhang plate; 10. Dangerous rock; 11. Tunnel. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0031] In this utility model, unless otherwise specified or limited, the terms "assemble," "connect," "connect," "fix," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0032] Figures 1 to 8 An embodiment of the tunnel construction device of the present invention is shown. The tunnel construction device of this embodiment includes a TBM hard rock tunnel boring machine 1. The head of the TBM hard rock tunnel boring machine 1 is provided with a support shield 2. The top of the TBM hard rock tunnel boring machine 1 is provided with a receiving groove 3. The receiving groove 3 is located behind the support shield 2. A lifting mechanism 4 and a stone crushing mechanism 5 are provided in the receiving groove 3. The lifting mechanism 4 is provided with a stone receiving groove 6 and a flipping mechanism 7 for driving the stone receiving groove 6 to flip the stone toward the stone crushing mechanism 5.

[0033] The construction process, taking the construction of inclined tunnel 11 as an example, first, Figure 1 and Figure 2 As shown, the TBM hard rock tunnel boring machine 1 is tunneling upwards at an angle; Figure 3 and Figure 4 As shown, when the dangerous stone 10 is located above the stone receiving groove 6, it falls into the stone receiving groove 6; Figure 5 and Figure 6 As shown, the lifting mechanism 4 drives the stone receiving trough 6 to descend to a predetermined position; then, as shown in FIG. Figure 7 and Figure 8 As shown, the turning mechanism 7 drives the stone receiving chute 6 to turn toward the stone crushing mechanism 5, dumping the dangerous rock 10 into the stone crushing mechanism 5; finally, the stone crushing mechanism 5 crushes the dangerous rock 10. This tunnel construction device not only reduces the difficulty and efficiency of stone removal, but also reduces the risk of stone removal, which is unlikely to cause damage to personnel and equipment.

[0034] Furthermore, in this embodiment, a buffer pad 8 is provided in the stone receiving groove 6 to prevent the dangerous rock 10 from falling into the stone receiving groove 6 and causing a rigid impact, thereby improving the service life of the stone receiving groove 6.

[0035] Furthermore, in this embodiment, the cushioning pad 8 includes a lifting plate 81 and an elastic member 82. The elastic member 82 is fixed to the bottom wall of the stone receiving groove 6, and the lifting plate 81 is mounted on the elastic member 82. Preferably, in this embodiment, the elastic member 82 is a spring. Furthermore, the lifting plate 81 is adapted to the size of the stone receiving groove 6, so that the lifting plate 81 slides stably along the inner wall of the stone receiving groove 6.

[0036] Furthermore, in this embodiment, the front wall and the rear wall of the stone receiving groove 6 are both inclined upward. The front wall of the stone receiving groove 6 is inclined upward to guide the dangerous stone 10, making it easier for the dangerous stone 10 to fall into the stone receiving groove 6. The rear wall of the stone receiving groove 6 is inclined upward to prevent the dangerous stone 10 from falling out to the rear.

[0037] Furthermore, in this embodiment, an inwardly cantilevered overhang plate 9 is provided at the top of the front wall of the stone receiving trough 6. This overhang plate 9 can be used to guide dangerous rocks 10 into the stone receiving trough 6. Furthermore, a detection mechanism can be provided on the overhang plate 9 to detect the downward movement of the overhang plate 9 and thereby reflect the condition of the dangerous rock 10. Specifically, the overhang length of the overhang plate 9 is set as needed to ensure that the dangerous rock 10 can enter the stone receiving trough 6.

[0038] Furthermore, if Figure 2 As shown, in this embodiment, the turning mechanism 7 includes a mounting seat 71 and a telescopic cylinder 72. The mounting seat 71 is fixed on the lifting mechanism 4. One end of the telescopic cylinder 72 is hinged to the mounting seat 71 and the other end is hinged to the stone receiving groove 6.

[0039] Furthermore, in this embodiment, a hinge seat 61 is provided at the bottom of the stone receiving trough 6, and the hinge seat 61 is hinged to the lifting mechanism 4. Preferably, in this embodiment, the telescopic cylinder 72 is a pneumatic cylinder, an oil cylinder or an electric cylinder.

[0040] Of course, in other embodiments, the turning movement of the stone receiving trough 6 can also be achieved by connecting a driving motor to its turning shaft.

[0041] Furthermore, in this embodiment, the stone crushing mechanism 5 is located behind the lifting mechanism 4 to facilitate the falling of dangerous rocks 10.

[0042] Furthermore, in this embodiment, the lifting mechanism 4 adopts a conventional hydraulic lifting structure, a pneumatic lifting structure, or an electric lifting structure, which can achieve the lifting of the stone receiving trough 6. The stone crushing mechanism 5 can adopt an existing stone crushing mechanism.

[0043] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the present invention, utilize the technical content disclosed above to make many possible changes and modifications to the present invention, or modify it into equivalent embodiments with equivalent variations. Therefore, any simple modifications, equivalent variations, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the scope of protection of the present invention.

Claims

1. A tunnel construction device, comprising a TBM hard rock tunnel boring machine (1), wherein the head of the TBM hard rock tunnel boring machine (1) is provided with a support shield (2), characterized in that: The top of the TBM hard rock tunnel boring machine (1) is provided with a receiving groove (3), the receiving groove (3) is located behind the support shield (2), a lifting mechanism (4) and a stone crushing mechanism (5) are provided in the receiving groove (3), and the lifting mechanism (4) is provided with a stone receiving groove (6) and a turning mechanism (7) for driving the stone receiving groove (6) to turn over the stone toward the stone crushing mechanism (5).

2. The tunnel construction device according to claim 1, characterized in that: A buffer pad (8) is provided in the stone receiving groove (6).

3. The tunnel construction device according to claim 2, characterized in that: The buffer pad (8) comprises a lifting plate (81) and an elastic member (82), wherein the elastic member (82) is fixedly arranged on the bottom wall of the stone receiving groove (6), and the lifting plate (81) is arranged on the elastic member (82).

4. The tunnel construction device according to claim 3, characterized in that: The elastic member (82) is a spring.

5. The tunnel construction device according to claim 1, characterized in that: The front wall and the rear wall of the stone receiving groove (6) are both inclined upward.

6. The tunnel construction device according to claim 1, characterized in that: A hanging plate (9) hanging inwards is provided on the top of the front wall of the stone receiving trough (6).

7. The tunnel construction device according to any one of claims 1 to 6, characterized in that: The turning mechanism (7) comprises a mounting seat (71) and a telescopic cylinder (72), wherein the mounting seat (71) is fixed on the lifting mechanism (4), and one end of the telescopic cylinder (72) is hinged to the mounting seat (71) and the other end is hinged to the stone receiving groove (6).

8. The tunnel construction device according to claim 7, characterized in that: A hinge seat (61) is provided at the bottom of the stone receiving trough (6), and the hinge seat (61) is hinged to the lifting mechanism (4).

9. The tunnel construction device according to claim 7, characterized in that: The telescopic cylinder (72) is a pneumatic cylinder, an oil cylinder or an electric cylinder.

10. The tunnel construction device according to any one of claims 1 to 6, characterized in that: The stone crushing mechanism (5) is located behind the lifting mechanism (4).

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