A slag receiving device for tunnel excavation and a tunneling machine having the same

Abstract

The application relates to a slag receiving device for tunnel excavation and a tunneling machine with the same, wherein the slag receiving device comprises a slag receiving bucket, a front sealing plate mechanism and a rear sealing plate mechanism; the slag receiving bucket is provided with a front slag inlet, two side slag inlets and a central channel, the two side slag inlets are located on the two sides of the front slag inlet, the central channel is located below the front slag inlet, and the front slag inlet and the side slag inlets are communicated with the central channel; the front sealing plate mechanism is installed on the side slag inlets to be capable of closing or opening the side slag inlets; the rear sealing plate mechanism is installed on the central channel, and the rear sealing plate mechanism is capable of closing part of the central channel to form a slag outlet. The slag receiving device can simultaneously meet the slag receiving requirements of the tunneling machine in the flat-hole tunnel and the inclined shaft tunnel excavation, and can be quickly and conveniently converted between the two working conditions, so that the construction efficiency is greatly improved, and the construction cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunneling, in particular to a slag receiving device for tunneling and a tunneling machine with the same. BACKGROUND

[0002] The construction of pumped storage power station requires multiple tunnels to be built between two reservoirs with a certain height difference. Each tunnel is composed of multiple inclined shaft tunnels and horizontal tunnel tunnels, and the connection position of the inclined shaft tunnel and the horizontal tunnel tunnel adopts a circular arc segment transition. The commonly used construction method is to use a tunneling machine to complete the construction of the horizontal tunnel tunnel and the inclined shaft tunnel respectively, and the connection turning section of the horizontal tunnel tunnel and the inclined shaft tunnel is constructed by drilling and blasting method. This construction method is not only low in efficiency and slow in progress, but also requires two different tunneling machines to complete the construction in sections, which prolongs the construction period and increases the cost. To solve the problem of continuous tunneling of multiple inclined shaft tunnels and horizontal tunnel tunnels by the tunneling machine, in addition to the functions of continuous tunneling, small diameter turning and anti-slip of the tunneling machine, the tunneling machine also needs to realize continuous slag discharge when switching between the horizontal tunnel tunnel and the inclined shaft tunnel. However, the slag receiving device of the tunneling machine at present cannot simultaneously satisfy the requirements of horizontal tunnel tunnel slag receiving and inclined shaft tunnel slag receiving.

[0003] Therefore, there is an urgent need for a slag receiving device for tunneling which can simultaneously satisfy the requirements of horizontal tunnel tunnel slag receiving and inclined shaft tunnel slag receiving, and a tunneling machine with the same. SUMMARY

[0004] (I) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present application provides a slag receiving device for tunneling and a tunneling machine with the same, which solves the technical problem that the prior art cannot simultaneously satisfy the requirements of horizontal tunnel tunnel slag receiving and inclined shaft tunnel slag receiving.

[0006] (II) Technical solutions

[0007] In order to achieve the above-mentioned purposes, the main technical solutions adopted by the present application include:

[0008] On the one hand, the present application provides a slag receiving device for tunneling, which comprises a slag receiving hopper, a front sealing plate mechanism and a rear sealing plate mechanism. The slag receiving hopper is provided with a front slag inlet, two side slag inlets and a central channel. The two side slag inlets are located on both sides of the front slag inlet, and the central channel is located below the front slag inlet. The front slag inlet and the side slag inlets are in communication with the central channel. The front sealing plate mechanism is installed on the side slag inlets to be able to close or open the side slag inlets. The rear sealing plate mechanism is installed on the central channel, and the rear sealing plate mechanism can close part of the central channel to form a slag outlet. The slag receiving hopper can be installed on the main body of the tunneling machine and located behind the cutter head of the tunneling machine.

[0009] Optionally, the front sealing plate mechanism comprises a first sealing plate and a first telescopic driver. The first sealing plate is slidably mounted on the top of the side slag inlet, and the first telescopic driver is mounted on the slag receiving bucket. The first telescopic driver is connected to the first sealing plate to drive the first sealing plate to slide along the top edge of the side slag inlet to close or open the side slag inlet.

[0010] Optionally, the top edge of the side slag inlet is arc-shaped, and the first sealing plate is arc-shaped, and the arc of the two is matched.

[0011] Optionally, the rear sealing plate mechanism comprises a second sealing plate, a second telescopic driver, two third sealing plates and two third telescopic drivers. The second sealing plate is slidably mounted above the center channel, and the second sealing plate can slide to close the center channel. The second telescopic driver is mounted above the second sealing plate, and the second telescopic driver is connected to the second sealing plate. Two third sealing plates are rotatably mounted on both sides of the center channel, and the rotation axes of the two are vertically oriented. Two third telescopic drivers are mounted on both sides of the center channel, and the third telescopic driver is connected to the third sealing plate on the same side.

[0012] Optionally, two slide rails extending in the vertical direction are arranged on both sides of the center channel, and the slide rails extend downward to the edge of the center channel. The two ends of the second sealing plate are slidably mounted in the two slide rails.

[0013] Optionally, the thickness of the second sealing plate is the same as that of the third sealing plate.

[0014] Optionally, the bottom of the third sealing plate is arc-shaped.

[0015] Optionally, when the rear sealing plate mechanism closes the center channel, the slag outlet formed between the two third sealing plates and the slag receiving bucket is circular.

[0016] Optionally, a plurality of slag discharging blades are uniformly arranged in the side slag inlet, and the bottom end of the slag discharging blade faces the discharging direction.

[0017] In another aspect, the application also provides a tunneling machine comprising the above-mentioned slag receiving device, the machine body and the machine cutter. The machine cutter is mounted on the machine body, and the slag receiving device is mounted on the machine body and located inside the machine cutter.

[0018] (Three) beneficial effects

[0019] The beneficial effects of the application are:

[0020] The application provides a rock residue receiving device for tunnel excavation, which can be installed at the rear of a cutter head of a tunneling machine to collect rock residues cut by the cutter head for discharge. In the process of flat-hole tunnel excavation, the end of a belt conveyor of the tunneling machine can be extended into the front of the rock residue receiving device through a central passage below a front rock residue inlet of the rock residue receiving device, so that the rock residues cut by the cutter head are discharged from the tunnel, and the side rock residue inlets are closed by a front sealing plate mechanism to prevent the rock residues from entering the inside of the rock residue receiving device from the side and being discharged by the belt conveyor. In the process of inclined shaft tunnel excavation, the side rock residue inlets are opened by the front sealing plate mechanism to increase the rock residue receiving area, and part of the central passage is closed by a rear sealing plate mechanism to form a rock residue outlet and connect a rock residue chute, so that the rock residues are discharged from the rock residue chute. Compared with the prior art, the rock residue receiving device can meet the rock residue receiving requirements of the tunneling machine in the process of flat-hole tunnel excavation and inclined shaft tunnel excavation, and can be quickly and conveniently converted between the two working conditions, thereby greatly improving the construction efficiency and reducing the construction cost. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the rock residue receiving device for tunnel excavation of the embodiment 1 of the application in the process of flat-hole tunnel construction;

[0022] Figure 2 is a structural schematic view of the rock residue receiving device for tunnel excavation of the embodiment 1 of the application in the process of inclined shaft tunnel construction;

[0023] Figure 3 is a structural schematic view of the tunneling machine in the process of flat-hole tunnel construction of the embodiment 2 of the application;

[0024] Figure 4 is a structural schematic view of the tunneling machine in the process of inclined shaft tunnel construction of the embodiment 2 of the application.

[0025]

BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 1: rock residue receiving hopper; 11: front rock residue inlet; 12: side rock residue inlet; 13: central passage; 14: rock residue outlet; 15: rock residue discharge blade;

[0027] 21: first sealing plate; 22: first telescopic drive;

[0028] 31: second sealing plate; 32: second telescopic drive; 33: third sealing plate; 34: third telescopic drive;

[0029] 4: cutter head of tunneling machine;

[0030] 5: belt conveyor. DETAILED DESCRIPTION

[0031] For a better understanding of the above technical solutions, the exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present application can be more clearly, thoroughly understood and the scope of the present application can be completely conveyed to those skilled in the art. The "upper", "lower", "front", "rear" directions in this paper are taken as a reference with the orientation of the drawings. Figure 1

[0032] Embodiment 1:

[0033] As shown in Figures 1-4 , the embodiment of the present application provides a slag receiving device for tunneling, which comprises a slag receiving bucket 1, a front sealing plate mechanism and a rear sealing plate mechanism. The slag receiving bucket 1 is provided with a front face slag inlet 11 with an upward opening, two side face slag inlets 12 and a central passage 13. The two side face slag inlets 12 are located on both sides of the front face slag inlet 11, and the central passage 13 is located below the front face slag inlet 11. The front face slag inlet 11 and the side face slag inlets 12 are in communication with the central passage 13. The front sealing plate mechanism is installed on the side face slag inlets 12 to be able to close or open the side face slag inlets 12. The rear sealing plate mechanism is installed on the central passage 13, and the rear sealing plate mechanism is able to close part of the central passage 13 to form a slag outlet 14. The slag receiving bucket 1 can be installed on the tunneling machine main body (not shown) behind the tunneling machine cutter head 4. Among them, the side face slag inlets 12 are uniformly provided with a plurality of slag discharge blades 15, and the bottom end of the slag discharge blades 15 faces the slag discharge direction, which plays a certain guiding role for the rock slag entering the side face slag inlets 12.

[0034] Specifically, the slag receiving device can be installed behind the tunneling machine cutter head 4 to collect the rock slag cut by the tunneling machine cutter head 4 for easy discharge. When tunneling in a flat hole, the end of the belt conveyor 5 of the tunneling machine can be extended through the central passage 13 to below the front face slag inlet of the slag receiving device, and the rock slag cut by the cutter head is discharged from the tunneling machine, and the front sealing plate mechanism closes the side face slag inlets 12 to prevent the rock slag from entering the inside of the slag receiving device from the side and being discharged by the belt conveyor 5. When tunneling in an inclined shaft, the front sealing plate mechanism opens the side face slag inlets 12 to increase the slag receiving area, and the rear sealing plate mechanism closes part of the central passage 13 to form a slag outlet 14 and is connected to a slag chute to discharge the rock slag from the slag chute. Compared with the prior art, the slag receiving device can simultaneously meet the slag receiving requirements of the tunneling machine when tunneling in a flat hole and an inclined shaft, and can be quickly and conveniently converted between the two working conditions, greatly improving the construction efficiency and reducing the construction cost.

[0035] Further, as shown in Figure 1 and Figure 2 ​As shown, the front sealing plate mechanism comprises a first sealing plate 21 and a first telescopic driver 22. The first sealing plate 21 is slidably mounted on the top of the side slag inlet 12, and the first telescopic driver 22 is mounted on the slag receiving bucket 1. The first telescopic driver 22 is connected to the first sealing plate 21 to drive the first sealing plate 21 to slide along the top edge of the side slag inlet 12 to close or open the side slag inlet 12. Specifically, during the construction of a flat-hole tunnel, the first telescopic driver 22 is extended to drive the first sealing plate 21 to slide along the top edge of the side slag inlet 12 to abut against one side of the front slag inlet 11 to close the side slag inlet 12. During the construction of an inclined shaft tunnel, the first telescopic driver 22 is retracted to drive the first sealing plate 21 to slide along the top edge of the side slag inlet 12 away from the front slag inlet 11 to open the side slag inlet 12, increase the slag receiving area, and help to collect the rock slag cut by the cutter head in the slag discharge port for discharge. In this embodiment, the top edge of the side slag inlet 12 is arc-shaped, and the first sealing plate 21 is also arc-shaped, and the curvatures of the two are matched to facilitate the sliding of the first sealing plate 21 along the top edge of the side slag inlet 12. The inner side of the top edge of the side slag inlet 12 is provided with a sliding groove extending along the top edge, and the first sealing plate 21 is slidably mounted in the sliding groove.

[0036] Further, as Figure 1 and Figure 2As shown, the rear sealing plate mechanism includes a second sealing plate 31, a second telescopic actuator 32, two third sealing plates 33, and two third telescopic actuators 34. In this embodiment, the second sealing plate 31 and the third sealing plate 33 have the same thickness. The second sealing plate 31 is slidably mounted above the central channel 13 and can slide to close the central channel 13. The second telescopic actuator 32 is mounted above the second sealing plate 31 and connected to the second sealing plate 31. The two third sealing plates 33 are rotatably mounted on both sides of the central channel 13, with their rotation axes oriented vertically. The two third telescopic actuators 34 are mounted on both sides of the central channel 13 and connected to the third sealing plate 33 located on the same side. Specifically, during the construction of the inclined shaft tunnel, the second telescopic actuator 32 extends, driving the second sealing plate 31 to slide downwards. The two third telescopic actuators 34 located on either side of the central passage 13 extend, driving their corresponding third sealing plates 33 to rotate horizontally until their rearward sides are on the same plane as the rearward sides of the second sealing plate 31. At this point, the top of the third sealing plate 33 abuts against the bottom of the second sealing plate 31. The second sealing plate 31 and the two third sealing plates 33 together seal part of the central passage 13. A slag outlet 14 is formed between the two third sealing plates 33 and the slag receiving hopper 1, and this outlet 14 is connected to a slag chute for slag discharge. During the construction of the horizontal tunnel, the second telescopic actuator 32 retracts, driving the second sealing plate 31 to slide upwards. The third telescopic actuator 34 retracts, driving its corresponding third sealing plate 33 to rotate horizontally, opening the sealed part of the central passage 13. The end of the tunneling machine is then inserted through the central passage 13 into the front slag receiving port of the slag receiving device for slag discharge. In this embodiment, vertically extending slide rails are provided on both sides of the upper part of the central channel 13, and the slide rails extend downward to the edge of the central channel 13. The two ends of the second sealing plate 31 are slidably installed in the two slide rails. The bottom of the third sealing plate 33 is arc-shaped. When the rear sealing plate mechanism closes part of the central channel 13, the slag outlet 14 formed between the two third sealing plates 33 and the slag receiving hopper 1 is circular in shape, so as to facilitate the connection with the slag chute.

[0037] Example 2:

[0038] like Figures 1-4 As shown, this embodiment provides a tunneling machine, including the slag receiving device in embodiment 1, as well as the tunneling machine body and the tunneling machine cutterhead 4. The tunneling machine cutterhead 4 is installed on the tunneling machine body, and the slag receiving device is installed on the tunneling machine body and located inside the tunneling machine cutterhead 4.

[0039] The working condition of the tunneling machine provided by the embodiment is that, in the construction of a flat-hole tunnel, the side slag inlet 12 is closed by the front sealing plate mechanism, part of the central passage 13 is opened by the rear sealing plate mechanism, the end of the belt conveyor 5 of the tunneling machine body is extended into below the front slag inlet of the slag receiving device through the central passage 13, and the rock slag cut by the cutter head 4 of the tunneling machine is discharged through the belt conveyor 5. In the construction of an inclined shaft tunnel, the side slag inlet 12 is opened by the front sealing plate mechanism, part of the central passage 13 is closed by the rear sealing plate mechanism, the slag outlet 14 is formed, the slag outlet 14 is connected with the slag chute, and the rock slag cut by the cutter head 4 of the tunneling machine is discharged through the slag chute.

[0040] In the description of the present application, it should be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0041] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature, which can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "under" and "under" the second feature, which can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0043] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0044] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can modify, modify, replace and modify the above-described embodiments within the scope of the present application.

Claims

1. A slag receiving device for tunnel excavation, characterized in that, it comprises a slag receiving bucket (1), a front sealing plate mechanism and a rear sealing plate mechanism; the slag receiving bucket (1) is provided with a front slag inlet (11), two side slag inlets (12) and a central passage (13), the two side slag inlets (12) are located on both sides of the front slag inlet (11), the central passage (13) is located below the front slag inlet (11), and the front slag inlet (11) and the side slag inlets (12) are communicated with the central passage (13); the front sealing plate mechanism is installed on the side slag inlets (12) to be able to close or open the side slag inlets (12); the rear sealing plate mechanism is installed on the central passage (13), and the rear sealing plate mechanism can close part of the central passage (13) to form a slag outlet (14); the slag receiving bucket (1) can be installed on the main body of the tunneling machine and located behind the cutter head (4) of the tunneling machine; when excavating a flat tunnel, the end of the belt conveyor (5) of the tunneling machine can be extended into the front slag inlet of the slag receiving device through the central passage (13) below the front slag inlet, and the rock slag cut by the cutter head is discharged out of the tunnel, the side slag inlets (12) are closed by the front sealing plate mechanism to prevent the rock slag from entering the inside of the slag receiving device from the side; when excavating an inclined tunnel, the side slag inlets (12) are opened by the front sealing plate mechanism to increase the slag receiving area, part of the central passage (13) is closed by the rear sealing plate mechanism to form a slag outlet (14), and the slag outlet (14) is communicated with the slag chute to discharge the rock slag out of the slag chute.

2. The slag receiving device for tunnel excavation according to claim 1, characterized in that, the front sealing plate mechanism comprises a first sealing plate (21) and a first telescopic drive (22); the first sealing plate (21) is slidably installed on the top of the side slag inlet (12), the first telescopic drive (22) is installed on the slag receiving bucket (1), and the first telescopic drive (22) is connected to the first sealing plate (21) to drive the first sealing plate (21) to slide along the top edge of the side slag inlet (12) to close or open the side slag inlet (12).

3. The slag receiving device for tunnel excavation according to claim 2, characterized in that, the top edge of the side slag inlet (12) is arc-shaped, and the first sealing plate (21) is also arc-shaped, and the two arc shapes are matched.

4. The slag receiving device for tunnel excavation according to claim 1, characterized in that, the rear sealing plate mechanism comprises a second sealing plate (31), a second telescopic drive (32), two third sealing plates (33) and two third telescopic drives (34); the second sealing plate (31) is slidably installed above the central passage (13), the second sealing plate (31) can slide downward to close part of the central passage (13), the second telescopic drive (32) is installed above the second sealing plate (31), and the second telescopic drive (32) is connected to the second sealing plate (31). The two third sealing plates (33) are rotatably mounted on both sides of the central channel (13), with their rotation axes oriented vertically. The two third telescopic actuators (34) are mounted on both sides of the central channel (13), and the third telescopic actuators (34) are connected to the third sealing plates (33) located on the same side.

5. The muck-receiving device for tunnel excavation as described in claim 4, characterized in that, The central channel (13) has vertically extending slide rails on both sides above it. The slide rails extend downward to the edge of the central channel (13). The two ends of the second sealing plate (31) are slidably installed in the two slide rails.

6. The muck-receiving device for tunnel excavation as described in claim 4, characterized in that, The second sealing plate (31) has the same thickness as the third sealing plate (33).

7. The muck-receiving device for tunnel excavation as described in claim 4, characterized in that, The bottom of the third sealing plate (33) is arc-shaped.

8. The muck-receiving device for tunnel excavation as described in claim 7, characterized in that, When the rear sealing plate mechanism closes the central channel (13), the slag outlet (14) formed between the two third sealing plates (33) and the slag receiving hopper (1) is circular.

9. The muck-receiving device for tunnel excavation as described in claim 1, characterized in that, Multiple slag discharge blades (15) are evenly arranged inside the side slag inlet (12). The bottom end of the slag discharge blade (15) faces the slag discharge direction.

10. A heading machine characterized by Includes the muck receiving device for tunnel excavation as described in any one of claims 1-9, as well as the tunneling machine body and the tunneling machine cutterhead (4). The tunneling machine cutterhead (4) is installed on the tunneling machine body, and the slag receiving device is installed on the tunneling machine body and located inside the tunneling machine cutterhead (4).

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