A cutting and transporting mechanism integrating the functions of cutting and transporting and a heading machine

Abstract

The present application relates to the technical field of coal mine underground roadway tunneling, and discloses a cutting and transporting mechanism integrating the functions of cutting and transporting and a tunneling machine comprising the cutting and transporting mechanism, wherein the cutting and transporting mechanism comprises a cutting head for crushing coal rock and a scraper chain for transporting the coal rock, the crushed coal rock does not need to be transferred, is directly transported to the scraper chain by the cutting head, and is then transported to a designated position by the scraper chain. The cutting and transporting mechanism provided by the present application replaces the cutting mechanism of the tunneling machine, and can omit the loading mechanism. Furthermore, the cutting and transporting mechanism combines the cutting and transporting mechanism and the scraper conveyor together, so that the volume of the tunneling machine can be effectively reduced, and the compactness of the tunneling machine is better.

Description

Technical Field

[0001] This invention relates to the field of underground roadway excavation technology in coal mines, and in particular to a cutting and transporting mechanism and a tunneling machine that integrates transportation and cutting functions. Background Technology

[0002] Currently, the cutting mechanism of tunneling machines has a single function, only cutting and crushing coal and rock. The cut and crushed coal and rock need to be transferred to the scraper conveyor by the loading mechanism, and then transported to the appropriate location by the scraper conveyor. Since the functions of cutting and crushing coal and rock, loading and transportation are undertaken by different mechanisms, the tunneling machine has poor compactness, large size and poor adaptability to roadways.

[0003] Therefore, how to make tunneling machines more compact and reduce their size has become a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a cutting and transporting mechanism and a tunneling machine that integrates transportation and cutting functions, which can make the tunneling machine more compact and reduce its size.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] This invention provides a cutting and transporting mechanism integrating transportation and cutting functions, comprising: a frame; a drive shaft, the drive shaft being rotatably disposed at one end of the frame, a first drive sprocket and a second drive sprocket being sleeved on the drive shaft, the axes of the first drive sprocket and the second drive sprocket both coinciding with the axis of the drive shaft, and both the first drive sprocket and the second drive sprocket being drively connected to the drive shaft to rotate synchronously with the drive shaft; and a driven shaft, the driven shaft being rotatably disposed at the other end of the frame, the driven shaft being sleeved with... The system includes a first driven sprocket and a second driven sprocket. The axes of both sprockets coincide with the driven shaft, and both are drive-connected to the driven shaft to rotate synchronously with it. The first driving sprocket and the first driven sprocket are positioned opposite each other, as are the second driving sprocket and the second driven sprocket. A scraper chain is also included, comprising a scraper assembly and a first chain and a second chain arranged parallel and opposite to each other. The scraper assembly is disposed on the first chain and the second chain. Between the chains, the scraper assembly includes multiple scrapers arranged sequentially along the length direction of the first chain and the second chain. The two ends of each scraper are perpendicular to the first chain and the second chain, respectively. One end of each scraper is connected to two adjacent first pins of the first chain, and the other end is connected to two adjacent second pins of the second chain. The first chain is sleeved on the outside of the first driving sprocket and the first driven sprocket, and meshes with both the first driving sprocket and the first driven sprocket. The second chain is sleeved on the second driving sprocket... The drive sprocket and the second driven sprocket are external to each other and mesh with both the second drive sprocket and the second driven sprocket; two cutting heads are symmetrically arranged on both sides of the frame, and the two cutting heads are respectively connected to the two ends of the driven shaft. The material conveying direction of the guide plates of the two cutting heads is perpendicular to the material conveying direction of the scraper chain, and the two guide plates convey the material towards the scraper chain; a power element is connected to the drive shaft to drive the drive shaft to rotate around its own axis.

[0007] Preferably, the two first pins connected to one end of the scraper are connected to the same first outer link, and the two second pins connected to the other end of the scraper are connected to the same second outer link.

[0008] Preferably, the scraper assembly is provided with a plurality of first cutting teeth for crushing the material.

[0009] Preferably, the intercepting mechanism further includes a tensioning shaft, a first tensioning sprocket, a second tensioning sprocket, and two telescopic mechanisms. The first and second tensioning sprockets are rotatably mounted on the tensioning shaft, and the axes of the first and second tensioning sprockets coincide with the axis of the tensioning shaft. The two ends of the tensioning shaft are slidably connected to the two sides of the frame. The two telescopic mechanisms are symmetrically arranged on both sides of the frame, and the two ends of the tensioning shaft are fixedly connected to the two telescopic mechanisms. The first chain is mounted on the outside of the first tensioning sprocket and meshes with it. The second chain is mounted on the outside of the second tensioning sprocket and meshes with it.

[0010] Preferably, the telescopic mechanism is a hydraulic cylinder.

[0011] Preferably, the interception mechanism further includes two bidirectional balance valves, which are respectively connected to the two hydraulic cylinders.

[0012] Preferably, two bearing seats are symmetrically arranged on both sides of the frame, and the two ends of the drive shaft pass through the two bearing seats respectively. A bearing assembly is provided between the outer side wall of the drive shaft and the inner side wall of the two bearing seats.

[0013] Preferably, the drive shaft and the bearing housing are sealed by a floating seal.

[0014] Preferably, the frame includes a middle plate, a bottom plate, two side plates, two first baffles, and two second baffles. The two side plates are parallel and opposite to each other. Both ends of the drive shaft and both ends of the driven shaft are rotatably connected to the two side plates respectively. The scraper chain is disposed between the two side plates. The two first baffles are symmetrically disposed at the top of the two side plates, and each of the first baffles is inclined and the two first baffles are inclined towards each other. The two second baffles are symmetrically disposed on the two side plates and are respectively disposed behind the two cutting heads. The middle plate and the bottom plate are both disposed between the two side plates and are disposed vertically. The middle plate and the bottom plate are both disposed between the drive shaft and the driven shaft, and both sides of the middle plate and both sides of the bottom plate are respectively connected to the two side plates. The scraper chain is supported on the middle plate.

[0015] The present invention also provides a tunneling machine, which includes the aforementioned integrated transport and cutting mechanism.

[0016] The present invention achieves the following technical effects compared to the prior art:

[0017] The integrated transport and cutting mechanism provided by this invention includes: a frame, on which a cutting head for crushing coal and rock is mounted; a drive shaft, a driven shaft, and a scraper chain are also mounted on the frame. In actual use, the drive shaft is connected to a power element, which drives the drive shaft to rotate. The drive shaft drives the driven shaft to rotate via the scraper chain, and the driven shaft then drives the two cutting heads to rotate, thereby crushing the coal and rock. Furthermore, the cutting head can transport the crushed coal and rock to the scraper chain. During the process of transmitting power from the drive shaft to the driven shaft, the scraper chain can transport the crushed coal and rock to a designated location (depending on actual needs). It is evident that the transport and cutting mechanism provided by this invention eliminates the need for a loading mechanism. Moreover, this invention combines the transport and cutting mechanism with the scraper conveyor. This integrated transport and cutting mechanism, replacing the cutting mechanism, loading mechanism, and scraper conveyor of the tunneling machine, allows for a smaller and more compact tunneling machine. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the 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.

[0019] Figure 1 This is a schematic diagram of the interception and transportation mechanism with integrated transportation and interception functions provided in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram illustrating the arrangement of the drive shaft, the first drive sprocket, and the second drive sprocket in an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram illustrating the arrangement of the driven shaft, the first driven sprocket, and the second driven sprocket in an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the scraper chain provided in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the cutting head provided in an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram illustrating the arrangement of the tensioning shaft, the first tensioning sprocket, the second tensioning sprocket, and the telescopic mechanism provided in an embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram of the rack structure provided in an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached drawings: 100, integrated transport and cutting mechanism; 1, frame; 101, middle plate; 102, bottom plate; 103, side plate; 104, first baffle plate; 105, second baffle plate; 2, drive shaft; 3, first drive sprocket; 4, second drive sprocket; 5, driven shaft; 6, first driven sprocket; 7, second driven sprocket; 8, scraper chain; 801, first chain; 802, second chain; 803, scraper; 804, first pin; 805, first cutting tooth; 9, cutting head; 901, guide plate; 902, second cutting tooth; 10, power element; 11, tension shaft; 12, first tension sprocket; 13, second tension sprocket; 14, telescopic mechanism; 15, bearing seat; 16, bearing; 17, spacer ring. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] The purpose of this invention is to provide a cutting and transporting mechanism and a tunneling machine that integrates transportation and cutting functions, which can improve the compactness of the tunneling machine and reduce its size.

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] refer to Figures 1-7 As shown, the integrated transport and cutting mechanism 100 provided in this embodiment includes: a frame 1, a drive shaft 2, a scraper chain 8, and two cutting heads 9.

[0031] The drive shaft 2 is rotatably mounted at one end of the frame 1, such as... Figure 2 As shown, a first drive sprocket 3 and a second drive sprocket 4 are mounted on the drive shaft 2. The axes of the first drive sprocket 3 and the second drive sprocket 4 are both coincident with the axis of the drive shaft 2, and the first drive sprocket 3 and the second drive sprocket 4 are both connected to the drive shaft 2 for transmission, for example, through key transmission, so as to rotate synchronously with the drive shaft 2.

[0032] like Figure 3As shown, the driven shaft 5 is rotatably mounted on the other end of the frame 1. A first driven sprocket 6 and a second driven sprocket 7 are sleeved on the driven shaft 5. The axes of the first driven sprocket 6 and the second driven sprocket 7 are both coincident with the driven shaft 5. The first driven sprocket 6 and the second driven sprocket 7 are both connected to the driven shaft 5 by transmission, for example by key transmission, so as to rotate synchronously with the driven shaft 5. The first driving sprocket 3 is opposite to the first driven sprocket 6, and the second driving sprocket 4 is opposite to the second driven sprocket 7.

[0033] like Figure 4 As shown, the scraper chain 8 includes a scraper assembly and a first chain 801 and a second chain 802 arranged parallel to each other. The scraper assembly is disposed between the first chain 801 and the second chain 802. The scraper assembly includes a plurality of scrapers 803 arranged sequentially along the length direction of the first chain 801 and the second chain 802. The two ends of the scraper 803 are perpendicular to the first chain 801 and the second chain 802, respectively. One end of the scraper 803 is connected to two adjacent first pins 804 of the first chain 801, and the other end of the scraper 803 is connected to two adjacent second pins of the second chain 802. The first chain 801 is sleeved on the outside of the first driving sprocket 3 and the first driven sprocket 6 and meshes with both the first driving sprocket 3 and the first driven sprocket 6. The second chain 802 is sleeved on the outside of the second driving sprocket 4 and the second driven sprocket 7 and meshes with both the second driving sprocket 4 and the second driven sprocket 7. It should be noted that the first chain 801 and the second chain 802 have the same structure; both are drive chains, such as roller chains. Any adjacent inner and outer links of the drive chain are connected by pins. The first pin 804 and the second pin refer to the pins used to connect the inner and outer links. Further, preferably, the two first pins 804 connected to one end of the scraper 803 are connected to the same first outer link, and the two second pins connected to the other end of the scraper 803 are connected to the same second outer link.

[0034] like Figure 1 and Figure 5 As shown, two cutting heads 9 are symmetrically arranged on both sides of the frame 1. The two cutting heads 9 are respectively connected to the two ends of the driven shaft 5. The material conveying direction of the guide plates 901 of both cutting heads 9 is perpendicular to the material conveying direction of the scraper chain 8, and both guide plates 901 convey the material (crushed coal and rock) towards the scraper chain 8. The specific structure of the cutting head 9 is prior art. The guide plates 901 of the cutting head 9 are spirally wound around the main body of the cutting head 9. By controlling the rotation direction of the guide plates 901, the material can be conveyed towards the scraper chain 8. In addition, the cutting head 9 is provided with multiple second cutting teeth 902 for crushing coal and rock (named second cutting teeth 902 to distinguish them from the first cutting teeth 805).

[0035] like Figure 2 As shown, the power element 10 is connected to the drive shaft 2 to drive the drive shaft 2 to rotate around its own axis. Further, in this embodiment, there are two power elements 10, each connected to one end of the drive shaft 2. Using two power elements 10 provides a greater driving force to the drive shaft 2. Further, the power element 10 includes a motor and a gearbox, which are sequentially connected to the drive shaft 2, for example, via a coupling, to drive the drive shaft 2 to rotate around its own axis.

[0036] In practical use, the power element 10 drives the drive shaft 2 to rotate. The drive shaft 2 drives the scraper chain 8 to move via the first drive sprocket 3 and the second drive sprocket 4. The scraper chain 8 then drives the first driven sprocket 6 and the second driven sprocket 7 to rotate. Simultaneously, the rotation of the first driven sprocket 6 and the second driven sprocket 7 causes the driven shaft 5 to rotate synchronously. As the driven shaft 5 rotates, the two cutting heads 9 rotate accordingly, and the two cutting heads 9 begin to crush the coal and rock. Furthermore, the cutting heads 9 transport the crushed coal and rock to the scraper chain 8. While driving the first driven sprocket 6 and the second driven sprocket 7 to rotate, the scraper chain 8 can transport the crushed coal and rock to a designated location (depending on actual needs).

[0037] The interception and transportation mechanism provided in this embodiment can omit the loading mechanism, and the interception and transportation mechanism provided in this embodiment combines the interception and transportation mechanism and the scraper 803 conveyor together. With this configuration, the interception and transportation mechanism 100 with integrated transportation and cutting functions provided in this embodiment can replace the cutting mechanism, loading mechanism and scraper 803 conveyor of the tunneling machine, making the tunneling machine smaller and more compact.

[0038] In another embodiment of the present invention, as Figure 4 As shown, the scraper assembly is equipped with multiple first cutting teeth 805 for crushing materials. The first cutting teeth 805 can further crush coal and rock. Specifically, each first cutting tooth 805 is set on the scraper 803. The specific arrangement of all the first cutting teeth 805 on the scraper assembly depends on the actual situation, as long as it can achieve further crushing of coal and rock.

[0039] In another embodiment of the present invention, as Figure 6As shown, the interception mechanism also includes a tensioning shaft 11, a first tensioning sprocket 12, a second tensioning sprocket 13, and two telescopic mechanisms 14. The first tensioning sprocket 12 and the second tensioning sprocket 13 are rotatably mounted on the tensioning shaft 11, and the axes of the first tensioning sprocket 12 and the second tensioning sprocket 13 are both coincident with the axis of the tensioning shaft 11. The two ends of the tensioning shaft 11 are slidably connected to the two sides of the frame 1, respectively. The two telescopic mechanisms 14 are symmetrically arranged on the two sides of the frame 1, and the two ends of the tensioning shaft 11 are fixedly connected to the two telescopic mechanisms 14, respectively. The first chain 801 is mounted on the outside of the first tensioning sprocket 12 and meshes with the first tensioning sprocket 12. The second chain 802 is mounted on the outside of the second tensioning sprocket 13 and meshes with the second tensioning sprocket 13.

[0040] In practical use, the first chain 801 moves while simultaneously driving the first tension sprocket 12 to rotate synchronously, and the second chain 802 moves while simultaneously driving the second tension sprocket 13 to rotate synchronously. By controlling the extension and retraction of the two telescopic mechanisms 14, the tension of the first chain 801 and the second chain 802 can be adjusted. Tensioning by changing the center distance between the front and rear sprockets can easily place a large load on the cutting head 9. By extending and retracting the telescopic mechanisms 14, the chain tensioning function is achieved, thus avoiding placing a large load on the cutting head 9.

[0041] Furthermore, the first tension sprocket 12 and the second tension sprocket 13 are not limited to being rotatably mounted on the tension shaft 11, but can also be fixedly mounted on the tension shaft 11. In this case, the tension shaft 11 will rotate synchronously with the first tension sprocket 12 and the second tension sprocket 13. In order for the first tension sprocket 12 and the second tension sprocket 13 to work normally, both ends of the tension shaft 11 need to be rotatably connected to the two telescopic mechanisms 14. Specifically, in this embodiment, the telescopic mechanism 14 is a hydraulic cylinder, and more specifically, the extended end of the hydraulic cylinder is connected to the tension shaft 11. It should be noted that the telescopic mechanism 14 is not limited to a hydraulic cylinder, but can also be other mechanisms capable of telescopic movement.

[0042] In another embodiment of the present invention, the intercepting mechanism further includes two bidirectional balance valves, which are respectively connected to two hydraulic cylinders. The bidirectional balance valves are capable of maintaining pressure during the extension and retraction of the hydraulic cylinders. How the bidirectional balance valves are connected to the hydraulic cylinders is prior art and not the focus of this invention, therefore it will not be described further here.

[0043] In another embodiment of the present invention, as Figure 2As shown, two bearing seats 15 are symmetrically arranged on both sides of the frame 1. The two ends of the drive shaft 2 pass through the two bearing seats 15 respectively, and bearing assemblies are provided between the outer side wall of the drive shaft 2 and the inner side wall of the two bearing seats 15. In this embodiment, specifically, the bearing assembly includes two bearings 16, each bearing 16 is sleeved on the drive shaft 2, and a spacer ring 17 is provided between the two bearings 16 to separate them.

[0044] In another embodiment of the present invention, the drive shaft 2 and the bearing housing 15 are sealed by a floating seal. It should be noted that the drive shaft 2 and the bearing housing 15 can also be sealed by other means, such as a labyrinth seal.

[0045] In another embodiment of the present invention, both ends of the driven shaft 5 are rotatably connected to the frame 1.

[0046] In another embodiment of the present invention, as Figure 7 As shown, the frame 1 includes a middle plate 101, a bottom plate 102, two side plates 103, two first baffle plates 104, and two second baffle plates 105. The two side plates 103 are parallel and opposite to each other. Both ends of the drive shaft 2 and both ends of the driven shaft 5 are rotatably connected to the two side plates 103 respectively. The scraper chain 8 is disposed between the two side plates 103. The two first baffle plates 104 are symmetrically disposed at the top of the two side plates 103. Each first baffle plate 104 is inclined, and the two first baffle plates 104 are inclined towards each other to prevent coal and rock from falling out between the first baffle plates 104. The two second baffle plates 105 are symmetrically disposed on the two side plates 103, and the two second baffle plates 105 are respectively disposed behind the two cutting heads 9. The second baffle plates 105 also prevent coal and rock from moving behind the cutting heads 9, so that the coal and rock are conveyed as close as possible to the scraper chain 8. The middle plate 101 and the bottom plate 102 are both located between the two side plates 103. The middle plate 101 and the bottom plate 102 are arranged vertically. The middle plate 101 and the bottom plate 102 are both located between the drive shaft 2 and the driven shaft 5. The two sides of the middle plate 101 and the two sides of the bottom plate 102 are respectively connected to the two side plates 103. The scraper chain 8 is supported on the middle plate 101.

[0047] This embodiment also provides a tunneling machine, which includes the integrated transport and cutting mechanism 100 described in any of the above embodiments. By using the integrated transport and cutting mechanism 100 to replace the cutting mechanism, loading mechanism and scraper 803 conveyor, the tunneling machine can be made smaller and more compact.

[0048] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A cutting and intercepting mechanism integrating transportation and cutting functions, characterized in that, include: frame; A drive shaft is rotatably mounted at one end of the frame. A first drive sprocket and a second drive sprocket are sleeved on the drive shaft. The axes of the first drive sprocket and the second drive sprocket are both coincident with the axis of the drive shaft. The first drive sprocket and the second drive sprocket are both connected to the drive shaft for transmission so as to rotate synchronously with the drive shaft. A driven shaft is rotatably mounted at the other end of the frame. A first driven sprocket and a second driven sprocket are sleeved on the driven shaft. The axes of both the first and second driven sprockets coincide with the driven shaft, and both are drive-connected to the driven shaft to move with it. The driven shaft rotates synchronously, with the first driving sprocket and the first driven sprocket positioned opposite each other, and the second driving sprocket and the second driven sprocket positioned opposite each other. A scraper chain, comprising a scraper assembly and a first chain and a second chain arranged parallel and opposite to each other. The scraper assembly is disposed between the first chain and the second chain. The scraper assembly includes a plurality of scrapers arranged sequentially along the length direction of the first chain and the second chain. The two ends of each scraper are perpendicular to the first chain and the second chain, respectively. One end of each scraper is connected to two adjacent first pins of the first chain, and the other end of each scraper is connected to two adjacent second pins of the second chain. The first chain is sleeved on the first drive sprocket and the... The first driven sprocket is located outside the first driven sprocket and meshes with both the first driving sprocket and the first driven sprocket. The second chain is sleeved outside the second driving sprocket and the second driven sprocket and meshes with both the second driving sprocket and the second driven sprocket. Two cutting heads are symmetrically arranged on both sides of the frame. The two cutting heads are respectively connected to the two ends of the driven shaft. The material conveying direction of the guide plates of the two cutting heads is perpendicular to the material conveying direction of the scraper chain, and the two guide plates convey the material towards the scraper chain. A power element is connected to the drive shaft to drive the drive shaft to rotate around its own axis; two first pins connected to one end of the scraper are connected to the same first outer link, and two second pins connected to the other end of the scraper are connected to the same second outer link.

2. The interception and transportation mechanism integrating transportation and interception functions according to claim 1, characterized in that, The scraper assembly is provided with a plurality of first cutting teeth for crushing the material.

3. The interception and transportation mechanism integrating transportation and interception functions according to claim 1, characterized in that, It also includes a tension shaft, a first tension sprocket, a second tension sprocket, and two telescopic mechanisms. The first and second tension sprockets are rotatably mounted on the tension shaft, and the axes of the first and second tension sprockets coincide with the axis of the tension shaft. The two ends of the tension shaft are slidably connected to the two sides of the frame. The two telescopic mechanisms are symmetrically arranged on both sides of the frame, and the two ends of the tension shaft are fixedly connected to the two telescopic mechanisms. The first chain is mounted on the outside of the first tension sprocket and meshes with it. The second chain is mounted on the outside of the second tension sprocket and meshes with it.

4. The interception and transportation mechanism integrating transportation and interception functions according to claim 3, characterized in that, The telescopic mechanism is a hydraulic cylinder.

5. The interception and transportation mechanism integrating transportation and interception functions according to claim 4, characterized in that, It also includes two bidirectional balance valves, which are respectively connected to the two oil cylinders.

6. The interception and transportation mechanism integrating transportation and interception functions according to claim 1, characterized in that, Two bearing seats are symmetrically arranged on both sides of the frame. The two ends of the drive shaft pass through the two bearing seats respectively, and a bearing assembly is provided between the outer side wall of the drive shaft and the inner side wall of the two bearing seats.

7. The interception and transportation mechanism integrating transportation and interception functions according to claim 6, characterized in that, The drive shaft and the bearing housing are sealed by a floating seal.

8. The interception and transportation mechanism integrating transportation and interception functions according to claim 1, characterized in that, The frame includes a middle plate, a bottom plate, two side plates, two first baffles, and two second baffles. The two side plates are parallel and opposite to each other. Both ends of the drive shaft and both ends of the driven shaft are rotatably connected to the two side plates respectively. The scraper chain is disposed between the two side plates. The two first baffles are symmetrically disposed at the top of the two side plates, and each of the first baffles is inclined and the two first baffles are inclined towards each other. The two second baffles are symmetrically disposed on the two side plates and are respectively disposed behind the two cutting heads. The middle plate and the bottom plate are disposed between the two side plates and are disposed vertically. The middle plate and the bottom plate are disposed between the drive shaft and the driven shaft, and both sides of the middle plate and both sides of the bottom plate are respectively connected to the two side plates. The scraper chain is supported on the middle plate.

9. A tunneling machine, characterized in that, The interception mechanism includes the integrated transport and interception functions as described in any one of claims 1-8.

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