Discharging system, heading machine chassis and crushing type heading machine

Abstract

The utility model relates to the technical field of tunneling equipment, in particular to a discharging system, a tunneling machine chassis and a crushing type tunneling machine, and the discharging system comprises a shovel plate, a material conveying groove and a scraper chain, and further comprises a tensioning mechanism; the shoveling plate is arranged at the inlet end of the material conveying groove and can rotate in a pitching mode under driving, and the tensioning mechanism is arranged at the outlet end of the material conveying groove, connected with the scraper chain and used for adjusting the tensioning force of the scraper chain when the shoveling plate tilts. The scraper chain can keep effective tensile force when the shovel plate rotates at a large angle, so that the shovel plate of the heading machine can realize large-angle pitching operation.

Description

Technical Field

[0001] The present application relates to the technical field of tunneling equipment, and in particular to a discharging system, a tunneling machine chassis and a crushing tunneling machine. Background Art

[0002] Due to the increasingly stringent review of mining blasting qualifications, many non-coal mines are facing the situation of suspension of work and production due to the inability to apply for mining blasting qualifications. This has made the large-scale application of crushing roadheaders in non-coal mines a prospect. At present, crushing roadheaders are mainly used in tunnel excavation operations in coal mining areas. Therefore, the crushing roadheaders provided by existing technologies are mainly designed for the environment of coal mine tunnels. The discharging system of the roadheader is for discharging coal blocks, and the pitch angle of the shovel at the front end of the roadheader is relatively small. However, in non-coal mines, due to the large number of slopes and the large slopes of the tunnels, the smaller shovel pitch angle cannot operate in such an environment. Utility Model Content

[0003] The purpose of this application is to provide a discharging system, a tunnel boring machine chassis and a crushing tunnel boring machine, which enable the scraper chain to maintain effective tension when the shovel blade rotates at a large angle, so that the shovel blade of the tunnel boring machine can achieve large-angle pitching operations.

[0004] The embodiment of the present application is implemented as follows:

[0005] In the first aspect, an embodiment of the present application discloses a discharging system, including a shovel plate, a feed trough and a scraper chain, and also includes a tensioning mechanism; the shovel plate is arranged at the inlet end of the feed trough and is driven to pitch and rotate, and the tensioning mechanism is arranged at the outlet end of the feed trough and connected to the scraper chain, and is used to adjust the tensioning force of the scraper chain when the shovel plate pitches.

[0006] As an optional embodiment, the tensioning mechanism includes a driven wheel arranged on the shovel plate and a sliding guide assembly arranged on the feed trough; the sliding guide assembly is provided with an active rotating shaft, and the scraper chain connects the active rotating shaft and the driven wheel; the active rotating shaft is driven to move along the extension direction of the feed trough on the sliding guide assembly, and the center distance between the active rotating shaft and the driven wheel is adjusted, so that the scraper chain generates a preset tensioning force.

[0007] As an optional embodiment, it also includes a first telescopic assembly, the material trough is installed on the chassis of the tunnel boring machine; the shovel plate is hinged at the inlet end of the material trough, and the hinge point is located above the first telescopic assembly; one end of the first telescopic assembly is hinged to the shovel plate, and the other end is hinged to the material trough; the distance from the hinge points at both ends of the first telescopic assembly to the ground is greater than the minimum ground clearance of the chassis of the tunnel boring machine.

[0008] As an optional embodiment, sliding guide rails are provided on both sides of the corresponding material trough, and the extension direction of the sliding guide rails is consistent with the extension direction of the material trough; the sliding guide assembly includes a sliding plate and a second telescopic assembly; the sliding plate is installed on the sliding guide rail, and the second telescopic assembly is fixed on the material trough and the telescopic end is connected to the sliding plate, which is used to drive the sliding plate to move along the sliding guide rail arrangement path.

[0009] As an optional embodiment, both ends of the active rotating shaft are respectively connected to the sliding plate; a rotation drive module for driving the active rotating shaft is installed on the sliding plate, and the rotation drive module drives the scraper chain to move along the extension path of the feed trough through the active rotating shaft.

[0010] As an optional embodiment, the scraper chain includes a chain body and a plurality of scrapers installed on the chain body and arranged at intervals; the scraper arrangement direction intersects with the chain body arrangement path, and is used to push the shovel plate and the mineral materials in the feed trough.

[0011] As an optional embodiment, the scraper chain is arranged in the middle of the conveying trough, and scrapers are provided on both sides of the extension direction of the scraper chain.

[0012] As an optional embodiment, the depth of the feed trough is greater than 650 mm.

[0013] In a second aspect, an embodiment of the present application provides a tunnel boring machine chassis, comprising the above-mentioned discharging system and a crawler chassis; the feed trough of the discharging system passes through the crawler chassis along the front-to-rear direction of the travel route.

[0014] As an optional embodiment, the distance from the inlet end of the material conveying trough to the ground is smaller than the distance from the outlet end of the material conveying trough to the ground.

[0015] In a third aspect, an embodiment of the present application provides a crushing-type tunnel boring machine, comprising the above-mentioned tunnel boring machine chassis, and a cab arranged on the tunnel boring machine chassis.

[0016] The beneficial effects of the embodiments of the present application include:

[0017] The embodiment of the present application discloses a discharging system, including a shovel plate, a feed trough, and a scraper chain, and also includes a tensioning mechanism; the shovel plate is arranged at the inlet end of the feed trough, and can be driven to pitch and rotate, and the tensioning mechanism is arranged at the outlet end of the feed trough and connected to the scraper chain, and is used to adjust the tension of the scraper chain when the shovel plate is pitched. The embodiment of the present application can deliver the mined ore into the feed trough through the shovel plate, and the feed trough can deliver the ore to other transfer equipment behind the chassis of the tunnel boring machine, so as to achieve rapid discharging of the ore. The embodiment of the present application can adjust the tension of the scraper chain, so the shovel plate of the embodiment of the present application can be rotated at a large angle of pitch. Compared with the prior art, the shovel plate of the embodiment of the present application can achieve efficient discharging in a tunnel with a large slope by rotating at a large angle of pitch.

[0018] The embodiment of the present application provides a tunnel boring machine chassis, including the above-mentioned discharging system and a crawler chassis; the feed trough of the discharging system passes through the crawler chassis in the front-to-back direction of the travel route. The tunnel boring machine chassis provided by the embodiment of the present application has the above-mentioned discharging system installed on the crawler chassis; the above-mentioned discharging system enables the scraper chain to maintain effective tension during large-angle rotation of the shovel plate through the movement of the active rotating shaft on the sliding guide assembly, thereby enabling the discharging system to achieve effective discharging during large-angle pitching of the shovel plate. The feed trough of the embodiment of the present application passes through the crawler chassis in the front-to-back direction of the travel route, that is, the feed trough is integrated and embedded in the crawler chassis to prevent the feed trough from being too high. Therefore, the tunnel boring machine chassis provided by the embodiment of the present application can be constructed in tunnels with large slopes, many turns, and small dimensions.

[0019] The present invention provides a crushing-type roadheader, comprising the aforementioned roadheader chassis and a cab mounted on the roadheader chassis. The crushing-type roadheader provided in the present invention utilizes the aforementioned roadheader chassis, effectively integrating the crawler chassis with the discharging system. By interlocking the chassis, the height of the discharging system on the crawler chassis is reduced, enabling the discharging system to discharge materials in small tunnels with steep slopes and numerous turns. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is one of the structural diagrams of the discharging system of the embodiment of the present application;

[0022] Figure 2This is the second structural diagram of the discharging system of the embodiment of the present application;

[0023] Figure 3 This is the third structural diagram of the discharging system of the embodiment of the present application;

[0024] Figure 4 This is a schematic structural diagram of the tunnel boring machine chassis according to an embodiment of the present application.

[0025] icon:

[0026] 100-discharging system; 101-shovel plate; 102-feeding trough; 103-tunneling machine chassis; 104-inlet end; 105-outlet end; 106-driven wheel; 107-driving wheel; 108-scraper chain; 109-sliding guide assembly; 110-driving shaft; 111-first telescopic assembly; 112-sliding guide rail; 113-sliding plate; 114-second telescopic assembly; 115-rotation drive module; 116-scraper. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0029] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," "third," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0030] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0031] As the review of mine blasting qualifications becomes increasingly strict, many non-coal mines are facing the situation of suspension of work and production due to the inability to apply for mine blasting qualifications. This has made the crushing roadheader a prospect of large-scale application in non-coal mines. The current crushing roadheaders are mainly used in tunnel excavation operations in coal mining areas. Therefore, the crushing roadheaders provided by the existing technology are mainly designed for the environment of coal mine tunnels, wherein the discharging system 100 of the roadheader is for discharging coal blocks, and the shovel plate 101 at the front end of the roadheader has a small pitch angle. However, in non-coal mines, since there are many slopes in the tunnels and the slopes are large, the smaller pitch angle of the shovel plate 101 cannot operate in such an environment.

[0032] In order to solve the above technical problems, the embodiments of the present application provide a discharging system 100, a tunnel boring machine chassis 103 and a crushing tunnel boring machine.

[0033] Reference Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4 As shown, an embodiment of the present application discloses a discharging system 100, including a shovel plate 101, a feed trough 102 and a scraper chain 108, and also includes a tensioning mechanism; the shovel plate 101 is arranged at the inlet end of the feed trough 102, and is driven to pitch and rotate, and the tensioning mechanism is arranged at the outlet end of the feed trough 102 and is connected to the scraper chain 108, and is used to adjust the tensioning force of the scraper chain 108 when the shovel plate 101 pitches.

[0034] Specifically, the tensioning mechanism includes a driven wheel 106 provided on the shovel plate 101 and a sliding guide assembly 109 provided on the feed trough 102; a driving shaft 110 is provided on the sliding guide assembly 109, and a scraper chain 108 connects the driving shaft 110 and the driven wheel 106; the driving shaft 110 is driven to move along the extension direction of the feed trough 102 on the sliding guide assembly 109, and the center distance between the driving shaft 110 and the driven wheel 106 is adjusted so that the scraper chain 108 generates a preset tensioning force.

[0035] Specifically, refer to Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4As shown, the inlet end 104 of the feeding trough 102 is hinged to the shovel plate 101, and the outlet end 105 is located behind the tunnel boring machine chassis 103; a driven wheel 106 is installed on the shovel plate 101, and a driving wheel 107 is installed at the outlet end 105 of the feeding trough 102; a scraper chain 108 is sleeved on the driven wheel 106 and the driving wheel 107; a sliding guide assembly 109 is provided on the feeding trough 102, and the sliding guide assembly 109 is provided with a driving shaft 110. The driving wheel 107 is mounted on the driving shaft 110; a first telescopic assembly 111 whose telescopic end is connected to the shovel plate 101 is installed on the chassis 103 of the tunnel boring machine. When the first telescopic assembly 111 drives the shovel plate 101 to rotate up and down around the hinge axis, the driving shaft 110 is driven on the sliding guide assembly 109 to move along the extension direction of the feed trough 102, adjusting the center distance between the driving wheel 107 and the driven wheel 106, so that the scraper chain 108 generates a preset tensioning force.

[0036] It should be noted that the discharge system 100 disclosed in the embodiment of the present application includes a shovel plate 101 and a chute 102 mounted on a roadheader chassis 103. The shovel plate 101 in the embodiment of the present application is hingedly connected to the front end of the roadheader chassis 103. The inlet end 104 of the chute 102 is connected to the shovel plate 101, and the outlet end 105 is located behind the roadheader chassis 103. In the embodiment of the present application, the shovel plate 101 can be used to deliver mined material into the chute 102, which can then transport the material to other transfer equipment behind the roadheader chassis 103, achieving rapid discharge of the material.

[0037] The scraper plate 101 of the present embodiment is equipped with a driven wheel 106, and the outlet end 105 of the feed trough 102 is equipped with a driving wheel 107. A scraper chain 108 is mounted on the driven wheel 106 and the driving wheel 107. The feed trough 102 is equipped with a sliding guide assembly 109, which is provided with a driving shaft 110, and the driving wheel 107 is mounted on the driving shaft 110.

[0038] It should be noted that the scraper plate 101 of the present embodiment is provided with a driven wheel 106 at an edge away from the trough 102. The scraper chain 108 can move linearly from the front end of the scraper plate 101 along the path of the trough 102, so that the ore at the scraper plate 101 enters the trough 102 and pushes the ore to be discharged from the outlet end 105.

[0039] A first telescopic assembly 111 connected to the shovel plate 101 at its telescopic end is installed on the tunnel boring machine chassis 103 of the embodiment of the present application. When the first telescopic assembly 111 drives the shovel plate 101 to rotate up and down around the hinge axis through telescoping, the active rotating shaft 110 is driven to move along the extension direction of the feed trough 102 on the sliding guide assembly 109, and the center distance between the active wheel 107 and the driven wheel 106 is adjusted, so that the scraper chain 108 generates a preset tensioning force.

[0040] It should be noted that the embodiment of the present application adjusts the center distance between the driving wheel 107 and the driven wheel 106 by moving the driving shaft 110 on the sliding guide assembly 109. When the shovel 101 pitches and rotates, the driving shaft 110 is driven to move and adjust synchronously to ensure that the scraper chain 108 can maintain effective tension.

[0041] It should be noted that the magnitude of the tensioning force in the embodiment of the present application can be set by those skilled in the art as needed, and no specific limitation is imposed on this.

[0042] The embodiment of the present application utilizes the sliding guide assembly 109 to maintain effective tension in the scraper chain 108 during large-angle rotation of the shovel blade 101, enabling the roadheader's shovel blade 101 to achieve large-angle pitching operations. Compared to existing technologies, the shovel blade 101 of the embodiment of the present application achieves efficient material discharge in steeply sloped tunnels through large-angle pitching.

[0043] As an optional embodiment, the feed trough 102 is installed on the tunnel boring machine chassis 103; the shovel plate 101 is hinged at the inlet end 104 of the feed trough 102, and the hinge point is located above the first telescopic assembly 111; one end of the first telescopic assembly 111 is hinged to the shovel plate 101, and the other end is hinged to the feed trough 102; the distance from the hinge points at both ends of the first telescopic assembly 111 to the ground is greater than the minimum ground clearance of the tunnel boring machine chassis 103.

[0044] The above arrangement enables the blade 101 to have a wide range of pitch motion, ensuring that it can be lifted a considerable distance in a roadway with a steep slope, thus preventing friction and collision between the blade 101 and the sloped road surface. Furthermore, the discharge system 100 is prevented from being too high, ensuring that the crushing roadheader can still operate effectively in small roadways with many turns.

[0045] The distance from the inlet end 104 of the material conveying trough 102 to the ground is smaller than the distance from the outlet end 105 of the material conveying trough 102 to the ground.

[0046] The embodiment of the present application can deliver the mined mineral material into the feed trough 102 through the shovel plate 101, and the feed trough 102 can transport the mineral material to other transfer equipment behind the chassis of the tunnel boring machine, thereby realizing rapid discharge of the mineral material.

[0047] Compared with the prior art, the shovel plate 101 of the embodiment of the present application has a larger range of up and down movement, so the first telescopic component 111 can drive the shovel plate 101 to perform a large-angle pitch rotation, and can achieve efficient discharge in tunnels with large slopes.

[0048] Referring to Figure 3, as an optional embodiment, sliding guide rails 112 are provided on both sides of the corresponding feed trough 102, and the extension direction of the sliding guide rails 112 is consistent with the extension direction of the feed trough 102; the sliding guide assembly 109 includes a sliding plate 113 and a second telescopic assembly 114; the sliding plate 113 is installed on the sliding guide rail 112, and the second telescopic assembly 114 is fixed on the feed trough 102 and the telescopic end is connected to the sliding plate 113, which is used to drive the sliding plate 113 to move along the arrangement path of the sliding guide rail 112.

[0049] Furthermore, in the embodiment of the present application, sliding rails 112 are provided on opposite sides of the feed trough 102, and the extending direction of the sliding rails 112 is consistent with the extending direction of the feed trough 102. Therefore, the sliding plate 113 can move along the extending direction of the feed trough 102 on the sliding rails 112. The second telescopic assembly 114 serves as a power source to control the movement of the sliding plate 113.

[0050] In the embodiment of the present application, the sliding plates 113 and the second telescopic components 114 are provided on both sides of the corresponding feeding trough 102 to ensure synchronous sliding of both ends of the active rotating shaft 110 and ensure the smooth movement of the active wheel 107.

[0051] It should be noted that the first telescopic assembly 111 and the second telescopic assembly 114 may adopt hydraulic cylinders or other linear drive modules, and those skilled in the art may configure them as needed.

[0052] Reference Figure 3 As shown, as an optional embodiment, both ends of the active rotating shaft 110 are respectively connected to the sliding plate 113; a rotation driving module 115 for driving the active rotating shaft 110 is installed on the sliding plate 113, and the rotation driving module 115 drives the scraper chain 108 to move along the extension path of the feed trough 102 through the active rotating shaft 110 and the driving wheel 107.

[0053] Furthermore, in the embodiment of the present application, a rotation drive module 115 for driving the active rotating shaft 110 is installed on the sliding plate 113. When the second telescopic component 114 drives the movement of the sliding plate 113, the rotation drive module 115 can move synchronously with the sliding plate 113, ensuring that when the center distance between the driving wheel 107 and the driven wheel 106 is adjusted, the scraper chain 108 can still guarantee continuous driving force.

[0054] Reference Figure 2 As shown, as an optional embodiment, the scraper chain 108 includes a chain body and a plurality of scrapers 116 installed on the chain body and arranged at intervals; the arrangement direction of the scrapers 116 intersects with the arrangement path of the chain body, and is used to push the shovel plate 101 and the mineral materials in the feed trough 102.

[0055] Preferably, the scraper chain 108 is arranged in the middle of the conveying trough 102, and scrapers 116 are provided on both sides of the extension direction of the scraper chain 108.

[0056] As an optional embodiment, the depth of the feed trough 102 is greater than 650 mm.

[0057] It should be noted that, due to the large ore particle size in existing non-coal mines, the maximum size is 700mm×700mm×700mm, so the depth of the feed trough 102 needs to be greater than 650mm.

[0058] Exemplarily, the depth of the feed trough 102 is greater than 700 mm.

[0059] Reference Figure 4 As shown, an embodiment of the present application provides a tunnel boring machine chassis 103, including the above-mentioned discharge system 100 and a crawler chassis; the feed trough 102 of the discharge system 100 passes through the crawler chassis along the front and rear directions of the travel route.

[0060] The tunnel boring machine chassis 103 provided in the embodiment of the present application has the above-mentioned discharging system 100 installed on the crawler chassis; the above-mentioned discharging system 100 moves the active rotating shaft 110 on the sliding guide assembly 109, so that the scraper chain 108 can maintain effective tension during the large-angle rotation of the shovel plate 101, thereby enabling the discharging system 100 to achieve effective discharging during the large-angle pitching of the shovel plate 101.

[0061] The feed trough 102 of the embodiment of the present application extends through the crawler chassis in the forward and backward directions along the travel route, that is, the feed trough 102 is integrated and embedded in the crawler chassis to prevent the feed trough 102 from being too high. Therefore, the tunnel boring machine chassis 103 provided by the embodiment of the present application can be used for construction in tunnels with steep slopes, many turns, and small dimensions.

[0062] Among them, the distance from the hinged connection between the first telescopic component 111 and the shovel plate 101 to the ground is consistent with the minimum ground clearance of the crawler chassis; the distance from the hinged connection between the first telescopic component 111 and the material trough 102 to the ground is greater than the minimum ground clearance of the crawler chassis.

[0063] In addition, an embodiment of the present application provides a crushing-type tunnel boring machine, including the above-mentioned tunnel boring machine chassis 103 and a cab arranged on the tunnel boring machine chassis 103.

[0064] The crushing tunnel boring machine provided in the embodiment of the present application adopts the above-mentioned tunnel boring machine chassis 103, which effectively integrates the crawler chassis and the discharge system 100. The height of the discharge system 100 on the crawler chassis is reduced through the interlocking arrangement, so that the discharge system 100 can discharge materials in tunnels with large slopes, many turns and small sizes, thereby improving the competitiveness of the crushing tunnel boring machine in replacing blasting mining methods in non-coal mines.

[0065] The foregoing description is merely a preferred embodiment of the present application and is not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A discharging system, characterized in that: The invention comprises a shovel plate (101), a feed trough (102) and a scraper chain (108), and also comprises a tensioning mechanism; the shovel plate (101) is arranged at the inlet end of the feed trough (102) and can be driven to pitch and rotate; the tensioning mechanism is arranged at the outlet end of the feed trough (102) and connected to the scraper chain (108), and is used to adjust the tensioning force of the scraper chain (108) when the shovel plate (101) pitches.

2. The discharging system according to claim 1, characterized in that: The tensioning mechanism comprises a driven wheel (106) provided on the shovel plate (101) and a sliding guide assembly (109) provided on the feed trough (102); a driving shaft (110) is provided on the sliding guide assembly (109), and the scraper chain (108) connects the driving shaft (110) and the driven wheel (106); the driving shaft (110) is driven on the sliding guide assembly (109) to move along the extension direction of the feed trough (102), and the center distance between the driving shaft (110) and the driven wheel (106) is adjusted, so that the scraper chain (108) generates a preset tensioning force.

3. The discharging system according to claim 1, characterized in that: The invention also includes a first telescopic assembly (111), wherein the feed trough (102) is mounted on a chassis (103) of a roadheader; the shovel plate (101) is hinged to an inlet end (104) of the feed trough (102), and a hinge point is located above the first telescopic assembly (111); one end of the first telescopic assembly (111) is hinged to the shovel plate (101), and the other end is hinged to the feed trough (102); and the distance from the hinge points at both ends of the first telescopic assembly (111) to the ground is greater than the minimum ground clearance of the chassis (103) of the roadheader.

4. The discharging system according to claim 2, characterized in that: Sliding guide rails (112) are provided on the corresponding two sides of the feed trough (102), and the extension direction of the sliding guide rails (112) is consistent with the extension direction of the feed trough (102); the sliding guide assembly (109) includes a sliding plate (113) and a second telescopic assembly (114); the sliding plate (113) is installed on the sliding guide rails (112), and the second telescopic assembly (114) is fixed on the feed trough (102) and the telescopic end is connected to the sliding plate (113), which is used to drive the sliding plate (113) to move along the arrangement path of the sliding guide rails (112).

5. The discharging system according to claim 4, characterized in that: Both ends of the active rotating shaft (110) are respectively connected to the sliding plate (113); a rotation driving module (115) for driving the active rotating shaft (110) is installed on the sliding plate (113); the rotation driving module (115) drives the scraper chain (108) to move along an extension path of the feed trough (102) through the active rotating shaft (110).

6. The discharging system according to claim 1, characterized in that: The scraper chain (108) includes a chain body and a plurality of scrapers (116) mounted on the chain body and arranged at intervals; the arrangement direction of the scrapers (116) intersects with the arrangement path of the chain body and is used to push the shovel plate (101) and the mineral materials in the conveying trough (102).

7. The discharging system according to claim 6, characterized in that: The scraper chain (108) is arranged in the middle of the conveying trough (102), and scrapers (116) are provided on both sides of the extension direction of the scraper chain (108).

8. A tunnel boring machine chassis, characterized in that: It comprises the discharging system (100) according to any one of claims 1 to 7 and a crawler chassis; the feed trough (102) of the discharging system (100) passes through the crawler chassis along the front-to-back direction of the travel route.

9. The tunnel boring machine chassis according to claim 8, characterized in that: The distance from the inlet end (104) of the material conveying trough (102) to the ground is smaller than the distance from the outlet end (105) of the material conveying trough (102) to the ground.

10. A crushing type tunnel boring machine, characterized in that: It comprises the tunnel boring machine chassis (103) according to any one of claims 8 to 9, and a driver's cab arranged on the tunnel boring machine chassis (103).

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