A large-dip-angle small-turning-radius circular TBM tunneling machine suitable for transportation

Abstract

A large-inclination small-turning-radius circular TBM tunneling machine suitable for conveying belongs to the technical field of tunneling machines, in order to solve the technical problem that the coal roadway tunneling is mostly small-radius curve type, and the existing TBM is not convenient for continuously conveying rock debris during construction, thereby affecting the tunneling efficiency; the first motor drives the rotating shaft and the spiral lifting plate to rotate to lift the rock debris, the rock debris enters the inclined conveying pipe inside through the opening on the upper side of the pipe body and the flexible metal pipeline, the rock debris can flow to the inside below of another group of vertical conveying pipes along the second pipeline and the first pipeline, forming a bending conveying process, the third hydraulic device can change the included angle between the third supporting plate and the adjacent second supporting plate, thereby meeting the requirements of the continuous turning feeding of the tunneling machine, the extension and contraction of the first hydraulic device and the second hydraulic device can change the length of the inclined conveying pipe, which can effectively avoid the dust generated by the lifting of the rock debris, and adapt to more complex roadways.

Description

Technical Field

[0001] This invention relates to the field of tunneling machine technology, and in particular to a circular TBM tunneling machine with a large inclination angle and a small turning radius suitable for conveying. Background Technology

[0002] A tunnel boring machine (TBM) is an underground engineering equipment that integrates mechanical, hydraulic, electronic, laser guidance, and sensing technologies. It can achieve efficient rock breaking, continuous muck removal, rapid support, ventilation and dust removal, and simultaneous operation of multiple processes including water supply and drainage. It boasts advantages such as safety, high efficiency, environmental friendliness, and high overall benefits. A typical TBM system includes a cutterhead excavation system, a conveying system, a support system, an exploration system, and corresponding auxiliary systems. During TBM excavation, the cutterhead excavation system is responsible for breaking the rock mass at the tunnel face; the conveying system is responsible for transporting the broken rock out; the support system is responsible for timely support of the formed surrounding rock; and the exploration system is responsible for periodically exploring the geological conditions ahead.

[0003] Currently, TBMs are mostly used in tunnel construction, where tunnels are typically straight or curved with a large radius. Therefore, traditional tunnel TBMs do not need to overcome the challenges of small-radius turning and steep-angle tunneling. However, coal roadway excavation is for subsequent coal mining, so the characteristics of coal roadway formation differ from those of tunnels. Coal roadways are typically curved with a small radius. Therefore, using TBMs for coal roadway excavation requires overcoming the technical challenges of small-radius turning and steep-angle tunneling. Solving the problem of continuous rock cuttings transportation during small-radius turning is a major challenge in overcoming the challenges of TBM tunneling during small-radius turning.

[0004] To address the aforementioned problems, a circular TBM tunneling machine with a large inclination angle and a small turning radius, suitable for conveying materials, is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a circular TBM tunneling machine with a large inclination angle and a small turning radius suitable for conveying materials. This solves the technical problem in the background art that coal roadway excavation is mostly small-radius curved, and existing TBMs are not convenient for continuously conveying rock cuttings during construction, thus affecting the tunneling efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a circular TBM (Tunnel Boring Machine) suitable for conveying large-angle, small-turning-radius tunneling machines, comprising a tunneling device, a support device and an advance drilling device disposed behind the tunneling device, and a conveying trolley disposed below the advance drilling device behind the tunneling device. A conveying device is disposed above the conveying trolley. The tunneling device is used to break the rock mass at the tunnel face, the support device is used to support the tunnel after tunneling is completed, and the advance drilling device is used to drive a probe drill rod to penetrate the tunneling device when the tunneling device stops rotating. The system is set up to conduct drilling exploration of the rock mass ahead. The conveying device is used to continuously transport the rock cuttings generated during drilling. The conveying trolley is used to control the angle between adjacent conveying devices and the conveying length of each group of conveying devices. Multiple groups of conveying trolleys are evenly distributed. Each group of conveying trolleys is equipped with a group of conveying devices. The conveying trolley includes an extendable and retractable support mechanism and a telescopic mechanism for controlling the extension and retraction of the support mechanism. A third hydraulic device is installed between two adjacent groups of support mechanisms. The third hydraulic device is used to control the angle between two adjacent groups of conveying trolleys so that they can turn.

[0007] The conveying devices on the multiple sets of conveying trolleys are connected end to end. The conveying device includes a vertical conveying pipe and an inclined conveying pipe. The two ends of the inclined conveying pipe are connected to the top and bottom of the two adjacent sets of vertical conveying pipes, respectively. The conveying device also includes a lifting mechanism installed inside the vertical conveying pipe.

[0008] Furthermore, the support mechanism includes a first support plate and a second support plate and a third support plate respectively disposed on both sides of the first support plate. Rollers are evenly distributed on both sides of the bottom of the second support plate and the third support plate. Slide grooves are provided on the inner sides of the second support plate and the third support plate. The first support plate is slidably disposed between the second support plate and the third support plate through the slide grooves.

[0009] Furthermore, the telescopic mechanism includes a first hydraulic actuator and a second hydraulic actuator, which are symmetrically mounted on the top of the first support plate. The output end of the first hydraulic actuator is fixed to the top of the second support plate, and the output end of the second hydraulic actuator is fixed to the top of the third support plate.

[0010] Furthermore, the second support plate has mounting grooves on one side and at the front and back, and slots are provided at the two corners on one side of the second support plate, with the slots extending downward from the top of the second support plate into the mounting grooves. The third support plate has grooves on one side and at the front and back, and ball grooves are provided obliquely on one side of the third support plate.

[0011] Furthermore, the third hydraulic unit is installed between the two adjacent sets of the second and third support plates. The tail of the third hydraulic unit is installed in the mounting groove through a locking rod. The output end of the third hydraulic unit is fitted with a ball head in the middle of the ball groove and the recess. One end of the second and third support plates is fixedly connected to a connecting plate. The connecting plates on the second support plate and the adjacent third support plate are staggered vertically. The two sets of connecting plates are rotatably connected. The third support plate is rotatably connected to the adjacent second support plate through the connecting plate.

[0012] Furthermore, the vertical conveying pipe includes a pipe body, which is installed on the top of the connecting plate on one side of the second support plate. The pipe body is provided with an opening that runs through both the inside and outside, and there are two sets of openings. The two sets of openings are symmetrical about the center of the pipe body. The opening located below one side of the pipe body is the feed end, and the opening located above the other side of the pipe body is the discharge end.

[0013] Furthermore, a lower sealing pipe and an upper sealing pipe are rotatably connected to the outside of the pipe body. Both the lower sealing pipe and the upper sealing pipe are located outside the opening, and the upper sealing pipe is located above the lower sealing pipe. Flexible metal pipes are fixedly connected to the lower sealing pipe and the upper sealing pipe. The flexible metal pipes are used to connect with the inclined conveying pipe.

[0014] Furthermore, the lifting mechanism includes a first motor fixedly installed at the top of the pipe body, a rotating shaft fixedly connected to the output end of the first motor, the rotating shaft passing through the middle of the pipe body vertically, and a spiral lifting plate fixedly connected to the outer wall of the rotating shaft, the spiral lifting plate being used to lift the rock slag upwards.

[0015] Furthermore, the inclined conveying pipe includes a first pipe and a second pipe slidably connected to both sides of the first pipe. The tops of the second support plate and the third support plate are fixedly connected to a fixing frame, and the two sets of fixing frames are rotatably connected to the second pipe through bushings.

[0016] Furthermore, the inclined conveying pipe is equipped with a conveying mechanism inside, which is used to transport the rock debris inside the inclined conveying pipe from a high place to a low place at an angle. The conveying mechanism includes a second motor fixedly connected to the outer wall of the first pipe, a housing fixedly connected to the inner wall of the first pipe, a first bevel gear rotatably connected inside the housing, the first bevel gear being fixedly connected to the output end of the second motor, a transmission rod passing through the housing laterally, and a second bevel gear fixedly connected to the transmission rod, the second bevel gear meshing with the first bevel gear, a transmission shaft rotatably connected to the inner wall of the second pipe through a rotating frame, a limiting groove corresponding to the transmission rod being provided on the transmission shaft, wherein the transmission rod is slidably connected to the transmission shaft through the limiting groove, and a spiral feeding plate rotatably connected to the outer wall of the transmission shaft.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This invention provides a circular TBM (Tunnel Boring Machine) suitable for conveying materials with a large inclination angle and a small turning radius. A first motor drives a rotating shaft and a spiral lifting plate to lift rock cuttings. The rock cuttings enter the inclined conveying pipe through an opening on one side of the pipe body and a flexible metal pipe. The rock cuttings can then flow along a second pipe and the first pipe to the lower part of another set of vertical conveying pipes, forming a zigzag conveying process. Because the lower sealing pipe is rotatably installed outside the pipe body, the angle between adjacent sets of inclined conveying pipes is adjustable. A third hydraulic actuator can change the angle between the third support plate and the adjacent second support plate, thus meeting the requirements for continuous turning and feeding of the tunnel boring machine. The distance between the second and third support plates can be changed by adjusting the extension and retraction of the first and second hydraulic actuators, thereby changing the length of the inclined conveying pipe through a fixing frame. Compared with existing conveyor belt conveying methods, this effectively avoids dust generated by rock cuttings falling and during transportation, and can adapt to more complex tunnel conditions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the conveying trolley and conveying device of the present invention. Figure 1 ;

[0021] Figure 3 This is a schematic diagram of the conveying trolley and conveying device of the present invention. Figure 2 ;

[0022] Figure 4 This is an exploded view of the conveying trolley and conveying device of the present invention;

[0023] Figure 5 This is an exploded view of the support mechanism structure of the present invention;

[0024] Figure 6 This is a cross-sectional view of the third support plate and the third hydraulic device of the present invention;

[0025] Figure 7 This is an exploded view of the vertical conveying pipe structure of the present invention;

[0026] Figure 8 This is an exploded view of the inclined conveying pipe structure of the present invention;

[0027] Figure 9 This is an exploded view of the inclined conveying pipe structure of the present invention;

[0028] Figure 10 This is an exploded view of the conveying mechanism structure of the present invention;

[0029] Figure 11 This is a diagram showing the operating status of the conveying trolley and conveying device of the present invention.

[0030] In the diagram: 1. Tunneling device; 2. Support device; 3. Advanced drilling device; 4. Transport trolley; 41. Support mechanism; 411. First support plate; 412. Second support plate; 4121. Mounting groove; 4122. Slot; 413. Third support plate; 4131. Groove; 4132. Ball groove; 414. Slide groove; 415. Connecting plate; 42. Telescopic mechanism; 421. First hydraulic actuator; 422. Second hydraulic actuator; 43. Third hydraulic actuator; 431. Locking rod; 432. Ball head; 5. Conveying device; 51. Vertical conveying pipe; 511. Pipe body; 512. 513. Opening; 514. Lower sealing pipe; 515. Upper sealing pipe; 516. Flexible metal pipe; 52. Inclined conveying pipe; 521. First pipe; 522. Second pipe; 523. Fixing frame; 524. Bushing; 53. Lifting mechanism; 531. First motor; 532. Rotating shaft; 533. Spiral lifting plate; 54. Conveying mechanism; 541. Second motor; 5411. Housing; 5412. First bevel gear; 542. Rotating frame; 543. Drive shaft; 5431. Limiting groove; 544. Spiral feeding plate; 545. Drive rod; 5451. Second bevel gear. Detailed Implementation

[0031] 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.

[0032] To address the technical problem that coal roadway excavation often involves small-radius curves, and that existing TBMs are inconvenient for continuously transporting rock cuttings during construction, thus affecting excavation efficiency, such as... Figures 1-11 As shown, the following preferred technical solutions are provided:

[0033] A circular TBM (Tunnel Boring Machine) suitable for conveying large-angle, small-turning-radius tunneling machines includes a tunneling device 1, a support device 2 and an advance drilling device 3 located behind the tunneling device 1, and a conveying trolley 4 located below the advance drilling device 3 behind the tunneling device 1. A conveying device 5 is installed above the conveying trolley 4. The tunneling device 1 is used to break the rock mass at the tunnel face, the support device 2 is used to support the tunnel after tunneling is completed, and the advance drilling device 3 is used to drive a probe drill rod through the tunneling device 1 and drill into the rock mass ahead when the tunneling device 1 stops rotating. The conveying device 5 is used to continuously transport the rock cuttings generated during drilling. The conveying trolley 4 is used to control the angle between adjacent conveying devices 5 and the conveying length of each group of conveying devices 5. Multiple groups of conveying trolleys 4 are evenly distributed. Each group of conveying trolleys 4 is equipped with a group of conveying devices 5. The conveying trolley 4 includes an extendable support mechanism 41 and a telescopic mechanism 42 for controlling the extension and retraction of the support mechanism 41. A third hydraulic device 43 is installed between two adjacent groups of support mechanisms 41. The third hydraulic device 43 is used to control the angle between two adjacent groups of conveying trolleys 4 so that they can turn.

[0034] The conveying devices 5 on the multiple sets of conveying trolleys 4 are connected end to end. The conveying device 5 includes a vertical conveying pipe 51 and an inclined conveying pipe 52. The two ends of the inclined conveying pipe 52 are connected to the top and bottom of the two adjacent sets of vertical conveying pipes 51, respectively. The conveying device 5 also includes a lifting mechanism 53 installed inside the vertical conveying pipe 51.

[0035] The support mechanism 41 includes a first support plate 411 and a second support plate 412 and a third support plate 413 respectively disposed on both sides of the first support plate 411. Rollers are evenly distributed on both sides of the bottom of the second support plate 412 and the third support plate 413. A sliding groove 414 is provided on the inner side of the second support plate 412 and the third support plate 413. The first support plate 411 is slidably disposed between the second support plate 412 and the third support plate 413 through the sliding groove 414.

[0036] The telescopic mechanism 42 includes a first hydraulic actuator 421 and a second hydraulic actuator 422. The first hydraulic actuator 421 and the second hydraulic actuator 422 are symmetrically installed on the top of the first support plate 411. The output end of the first hydraulic actuator 421 is fixed to the top of the second support plate 412, and the output end of the second hydraulic actuator 422 is fixed to the top of the third support plate 413. By extending the first hydraulic actuator 421 and the second hydraulic actuator 422, the length of the entire support mechanism 41 can be extended. By retracting the first hydraulic actuator 421 and the second hydraulic actuator 422, the length of the entire support mechanism 41 can be reduced.

[0037] The second support plate 412 has a mounting groove 4121 on one side and a slot 4122 at two corners on one side, and the slot 4122 extends downward from the top of the second support plate 412 into the mounting groove 4121. The third support plate 413 has a groove 4131 on one side and a ball groove 4132 on one side.

[0038] The third hydraulic actuator 43 is installed between the second support plate 412 and the third support plate 413 of the two adjacent groups. The tail of the third hydraulic actuator 43 is installed in the mounting groove 4121 through the locking rod 431. The output end of the third hydraulic actuator 43 is fitted into the middle part of the ball groove 4132 and the groove 4131 through the ball head 432. One end of the second support plate 412 and the third support plate 413 are fixedly connected to a connecting plate 415. The connecting plates 415 on the second support plate 412 and the adjacent third support plate 413 are staggered vertically. The two sets of connecting plates 415 are rotatably connected. The third support plate 413 is rotatably connected to the adjacent second support plate 412 through the connecting plate 415. By controlling the extension and retraction of the third hydraulic actuator 43, the angle between the two adjacent groups of support mechanisms 41 can be changed.

[0039] The vertical conveying pipe 51 includes a pipe body 511, which is installed on the top of the connecting plate 415 on one side of the second support plate 412. The pipe body 511 is provided with an opening 512 that runs through both the inside and outside. There are two sets of openings 512, which are symmetrical about the center of the pipe body 511. The opening 512 located below one side of the pipe body 511 is the feed end, and the opening 512 located above the other side of the pipe body 511 is the discharge end.

[0040] The lower sealing pipe 513 and the upper sealing pipe 514 are rotatably connected to the outside of the pipe body 511. Both the lower sealing pipe 513 and the upper sealing pipe 514 are located outside the opening 512, and the upper sealing pipe 514 is located above the lower sealing pipe 513. A flexible metal pipe 515 is fixedly connected to the lower sealing pipe 513 and the upper sealing pipe 514. The flexible metal pipe 515 can be a metal corrugated pipe. The flexible metal pipe 515 is used to connect with the inclined conveying pipe 52.

[0041] The lifting mechanism 53 includes a first motor 531 fixedly installed on the top of the pipe body 511. The output end of the first motor 531 is fixedly connected to a rotating shaft 532. The rotating shaft 532 passes through the middle of the pipe body 511 vertically. A spiral lifting plate 533 is fixedly connected to the outer wall of the rotating shaft 532. The spiral lifting plate 533 is used to lift the rock debris upward.

[0042] The inclined conveying pipe 52 includes a first pipe 521 and a second pipe 522 slidably connected to both sides of the first pipe 521. The tops of the second support plate 412 and the third support plate 413 are fixedly connected to the fixing frame 523. The two sets of fixing frames 523 are rotatably connected to the second pipe 522 through the bushing 524.

[0043] An inclined conveying pipe 52 is equipped with a conveying mechanism 54, which is detachable. The conveying mechanism 54 is used to transport rock debris inside the inclined conveying pipe 52 from a high position to a low position. The conveying mechanism 54 includes a second motor 541 fixedly connected to the outer wall of the first pipe 521. A housing 5411 is fixedly connected to the inner wall of the first pipe 521. A first bevel gear 5412 is rotatably connected inside the housing 5411. The first bevel gear 5412 is fixedly connected to the output end of the second motor 541. A transmission rod 545 extends laterally through the housing 5411, and a second bevel gear 5451 is fixedly connected to the transmission rod 545. The second bevel gear 5451 and the first bevel gear 5412... The inner wall of the second pipe 522 is rotatably connected to a drive shaft 543 via a rotating frame 542. The drive shaft 543 is provided with a limiting groove 5431 corresponding to the drive rod 545. The drive rod 545 is slidably connected to the drive shaft 543 via the limiting groove 5431. The outer wall of the drive shaft 543 is rotatably connected to a spiral feeding plate 544. When the conveying mechanism 54 is installed inside the inclined conveying pipe 52, the second motor 541 drives the drive rod 545 to rotate via the first bevel gear 5412 and the second bevel gear 5451. The drive rod 545 drives the drive shaft 543 to rotate, which in turn causes the spiral feeding plate 544 to rotate. This allows for the conveying of rock slag inside the inclined conveying pipe 52, preventing accumulation and blockage.

[0044] Specifically, during the tunneling process of the tunneling device 1, the rock debris that falls off is collected by the vertical conveying pipe 51 closest to the support device 2. Figure 2 As shown, a collectible hopper is installed on one side of the vertical conveying pipe 51. The first motor 531 drives the rotating shaft 532 and the spiral lifting plate 533 to rotate, lifting the rock debris. The rock debris enters the inclined conveying pipe 52 through the opening 512 on one side of the pipe body 511 and the flexible metal pipe 515. When the conveying mechanism 54 is not installed inside the inclined conveying pipe 52, the rock debris can flow along the second pipe 522 and the first pipe 521 to the lower part of another set of vertical conveying pipes 51. Since the lower sealing pipe 513 is rotatably installed outside the pipe body 511, the angle between adjacent sets of inclined conveying pipes 52 is also adjustable. When adjustment is needed, the third hydraulic device 43 between the third support plate 413 and the adjacent second support plate 412 needs to be activated. The third hydraulic device 43 can change the angle between the third support plate 413 and the adjacent second support plate 412, thereby meeting the requirements of continuous turning and feeding of the tunneling machine. Figure 11The diagram shows a turning feed after angle adjustment. If it is necessary to adjust the conveying length of the inclined conveying pipe 52, the distance between the second support plate 412 and the third support plate 413 can be changed by adjusting the extension and retraction of the first hydraulic device 421 and the second hydraulic device 422. In turn, the length of the inclined conveying pipe 52 can be changed by the fixing frame 523 to adapt to the more complex roadway conditions.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A circular TBM tunneling machine suitable for conveying large inclination angles and small turning radii, comprising a tunneling device (1) and a support device (2) and an advance drilling device (3) disposed behind the tunneling device (1), and further comprising a conveying trolley (4) disposed behind the tunneling device (1) and below the advance drilling device (3), wherein a conveying device (5) is disposed above the conveying trolley (4), characterized in that: The tunneling device (1) is used to break the rock mass at the tunnel face. The support device (2) is used to support the tunnel after tunneling is completed. The advanced drilling device (3) is used to drive the probe drill rod through the tunneling device (1) and drill and explore the rock mass in front when the tunneling device (1) stops rotating. The conveying device (5) is used to continuously convey the rock debris generated by drilling. The conveying trolley (4) is used to control the angle between adjacent conveying devices (5) and the conveying length of each group of conveying devices (5). There are multiple groups of conveying trolleys (4) evenly distributed. Each group of conveying trolleys (4) is equipped with a group of conveying devices (5). The conveying trolley (4) includes an extendable support mechanism (41) and a telescopic mechanism (42) for controlling the extension and retraction of the support mechanism (41). A third hydraulic device (43) is installed between two adjacent groups of support mechanisms (41). The third hydraulic device (43) is used to control the angle between two adjacent groups of conveying trolleys (4) so ​​that they can turn. The conveying devices (5) on the multiple sets of conveying trolleys (4) are connected end to end. The conveying device (5) includes a vertical conveying pipe (51) and an inclined conveying pipe (52). The two ends of the inclined conveying pipe (52) are connected to the top and bottom of the two adjacent sets of vertical conveying pipes (51), respectively. The conveying device (5) also includes a lifting mechanism (53) set inside the vertical conveying pipe (51). The support mechanism (41) includes a first support plate (411) and a second support plate (412) and a third support plate (413) respectively disposed on both sides of the first support plate (411). Rollers are evenly distributed on both sides of the bottom of the second support plate (412) and the third support plate (413). A sliding groove (414) is provided on the inner side of the second support plate (412) and the third support plate (413). The first support plate (411) is slidably disposed between the second support plate (412) and the third support plate (413) through the sliding groove (414). The second support plate (412) has a mounting groove (4121) on one side and a slot (4122) at two corners on one side. The slot (4122) extends downward from the top of the second support plate (412) into the mounting groove (4121). The third support plate (413) has a groove (4131) on one side and a ball groove (4132) on one side. The third hydraulic unit (43) is installed between the two adjacent sets of the second support plate (412) and the third support plate (413). The tail of the third hydraulic unit (43) is installed in the mounting groove (4121) through the locking rod (431). The output end of the third hydraulic unit (43) is fitted into the middle part of the ball groove (4132) and the groove (4131) through the ball head (432). One end of the second support plate (412) and the third support plate (413) are fixedly connected to the connecting plate (415). The connecting plates (415) on the second support plate (412) and the adjacent third support plate (413) are staggered vertically. The two sets of connecting plates (415) are rotatably connected. The third support plate (413) is rotatably connected to the adjacent second support plate (412) through the connecting plate (415).

2. The circular TBM tunneling machine with a large inclination angle and small turning radius suitable for conveying, as described in claim 1, is characterized in that: The telescopic mechanism (42) includes a first hydraulic actuator (421) and a second hydraulic actuator (422). The first hydraulic actuator (421) and the second hydraulic actuator (422) are symmetrically installed on the top of the first support plate (411). The output end of the first hydraulic actuator (421) is fixed to the top of the second support plate (412), and the output end of the second hydraulic actuator (422) is fixed to the top of the third support plate (413).

3. A circular TBM tunneling machine with a large inclination angle and a small turning radius, as described in claim 1, is characterized in that: The vertical conveying pipe (51) includes a pipe body (511). The pipe body (511) is installed on the top of the connecting plate (415) on one side of the second support plate (412). The pipe body (511) is provided with an opening (512) that runs through the inside and outside. There are two sets of openings (512). The two sets of openings (512) are symmetrical about the center of the pipe body (511). The opening (512) located below one side of the pipe body (511) is the feed end, and the opening (512) located above the other side of the pipe body (511) is the discharge end.

4. A circular TBM tunneling machine with a large inclination angle and a small turning radius, as described in claim 3, is characterized in that: The lower sealing pipe (513) and the upper sealing pipe (514) are rotatably connected to the outside of the pipe body (511). The lower sealing pipe (513) and the upper sealing pipe (514) are both located outside the opening (512), and the upper sealing pipe (514) is located above the lower sealing pipe (513). A flexible metal pipe (515) is fixedly connected to the lower sealing pipe (513) and the upper sealing pipe (514). The flexible metal pipe (515) is used to connect with the inclined conveying pipe (52).

5. A circular TBM tunneling machine with a large inclination angle and a small turning radius, as described in claim 4, characterized in that: The lifting mechanism (53) includes a first motor (531) fixedly installed on the top of the pipe body (511). The output end of the first motor (531) is fixedly connected to a rotating shaft (532). The rotating shaft (532) passes through the middle of the pipe body (511) from top to bottom. A spiral lifting plate (533) is fixedly connected to the outer wall of the rotating shaft (532). The spiral lifting plate (533) is used to lift the rock debris upward.

6. A circular TBM tunneling machine with a large inclination angle and a small turning radius, as described in claim 5, characterized in that: The inclined conveying pipe (52) includes a first pipe (521) and a second pipe (522) slidably connected to both sides of the first pipe (521). The tops of the second support plate (412) and the third support plate (413) are fixedly connected with a fixing frame (523). The two sets of fixing frames (523) are rotatably connected to the second pipe (522) through bushings (524).

7. A circular TBM tunneling machine with a large inclination angle and a small turning radius, as described in claim 6, characterized in that: An internal conveying mechanism (54) is provided inside the inclined conveying pipe (52). The conveying mechanism (54) is used to transport the rock debris inside the inclined conveying pipe (52) from a high place to a low place. The conveying mechanism (54) includes a second motor (541) fixedly connected to the outer wall of the first pipe (521). A housing (5411) is fixedly connected to the inner wall of the first pipe (521). A first bevel gear (5412) is rotatably connected inside the housing (5411). The first bevel gear (5412) is fixedly connected to the output end of the second motor (541). A transverse penetrating part is provided on the housing (5411). A transmission rod (545) is fixedly connected to a second bevel gear (5451), which meshes with a first bevel gear (5412). The inner wall of the second pipe (522) is rotatably connected to a transmission shaft (543) via a rotating frame (542). The transmission shaft (543) is provided with a limiting groove (5431) corresponding to the transmission rod (545). The transmission rod (545) is slidably connected to the transmission shaft (543) via the limiting groove (5431). The outer wall of the transmission shaft (543) is rotatably connected to a spiral feeding plate (544).

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