Bottom muck collecting device for inclined shaft TBM and inclined shaft TBM

Abstract

The invention provides an inclined shaft TBM bottom muck collecting device and an inclined shaft TBM, and belongs to the field of tunnel construction equipment. The inclined shaft TBM bottom muck collecting device comprises a shield and a muck sliding structure arranged on the shield, the shield comprises an arc-shaped bottom plate used for being attached to the tunnel wall, a through hole allowing virtual muck at the bottom of a tunnel to pass through from bottom to top is formed in the bottom plate, and a scraper knife used for upwards shoveling the virtual muck is arranged in the through hole. The upper side of the bottom plate is provided with a slag guiding structure used for guiding shoveled empty slag into the slag sliding structure. The inclined shaft TBM comprises the inclined shaft TBM bottom muck collecting device. The through hole is formed in the bottom plate of the shield, and the scraper knife is arranged in the through hole, so that in the tunneling process of the inclined shaft TBM, the scum at the bottom of the tunnel is scooped up through the scraper knife, then the scooped scum is guided to the scum sliding structure through the scum guiding structure arranged on the bottom plate to be discharged, the scum removing efficiency is improved, and the scum removing cost is reduced.

Description

Technical Field

[0001] The invention belongs to the field of tunnel construction equipment, and in particular relates to a slag collecting device at the bottom of an inclined shaft TBM and an inclined shaft TBM. Background Art

[0002] In tunnel construction with upward excavation, the TBM used for excavation work generally does not have a central belt conveyor, but instead uses a slag chute structure installed on the bottom shield to discharge the slag backwards.

[0003] During tunnel excavation, some of the slag will not enter the slag compartment, and this part of the slag will leak under the bottom shield to form virtual slag, which is ultimately difficult to be collected and transported out by the TBM's slag discharge system. It will remain at the bottom of the tunnel, affecting the laying of the slag chute and sleepers at the rear, and also affecting the safety of subsequent construction. In tunnels that are excavated diagonally upward, the amount of virtual slag will be greater, so it needs to be cleaned up in a timely manner.

[0004] Generally, the loose slag in the tunnel can be cleaned manually or by setting up a robot behind the TBM. However, in tunnels that are excavated upward at an angle, the above two methods have low slag cleaning efficiency and high slag cleaning costs due to the influence of the tunnel inclination. Summary of the invention

[0005] One of the purposes of the present invention is to provide a device for collecting bottom slag of an inclined shaft TBM, so as to solve the technical problem in the prior art that the bottom slag of a tunnel excavated obliquely upward is difficult to be cleaned in time.

[0006] Another object of the present invention is to provide a inclined well TBM to solve the above-mentioned technical problems.

[0007] In order to achieve the above-mentioned purpose, the technical solution of the inclined shaft TBM bottom slag collection device provided by the present invention is: A device for collecting slag at the bottom of an inclined shaft TBM comprises a shield and a slag chute structure arranged on the shield, wherein the shield comprises an arc-shaped bottom plate for fitting with a tunnel wall, the bottom plate is provided with a through hole for allowing slag at the bottom of the tunnel to pass upward from bottom to top, a shovel blade for scooping up the slag upward is arranged in the through hole, and a slag guiding structure for guiding the scooped slag into the slag chute structure is arranged on the upper side of the bottom plate.

[0008] As a further improvement, the slag guiding structure includes a front baffle fixed on the bottom plate of the shield and located in front of the through hole, and a rear baffle located in the rear of the through hole. The space between the front baffle and the rear baffle constitutes a slag guiding trough for guiding the virtual slag. The slag chute structure is provided with a slag discharge hole connected to the slag guiding trough. An intercepting body for intercepting the virtual slag can be detachably provided between the tops of the front baffle and the rear baffle. The front baffle, the rear baffle and the intercepting body constitute the slag guiding structure.

[0009] As a further improvement, the interception body is an interception net.

[0010] As a further improvement, the inclined shaft TBM bottom debris collection device also includes an adjusting knife seat, which includes a fixed part and an adjusting part. The fixed part is arranged on the shield, and the shovel is installed on the adjusting part. An adjusting structure for changing the relative height of the adjusting part and the fixed part is arranged between the adjusting part and the fixed part.

[0011] As a further improvement, the adjustment structure includes an adjustment long hole arranged on one of the adjustment part and the fixed part, and a fastener arranged on the other and passing through the adjustment long hole, the fastener is used to fix the adjustment seat and the fixed seat, and at least two fasteners are provided along the length direction of the adjustment long hole.

[0012] As a further improvement, the adjustment structure includes a rotating shaft arranged on one of the adjusting part and the fixed part, and a matching hole arranged on the other part for the rotating shaft to pass through and capable of rotatably cooperating with the rotating shaft. A locking structure is also arranged between the adjusting part and the fixed part to lock the rotating shaft so that the adjusting part and the fixed part are relatively fixed.

[0013] As a further improvement, at least two through holes are arranged at intervals along the circumference of the shield.

[0014] As a further improvement, the through holes are symmetrically arranged on both sides of the slag sliding structure, and at least two through holes are arranged on both sides of the slag sliding structure.

[0015] As a further improvement, the shield includes a bottom shield and side shields located on both sides of the bottom shield in the circumferential direction, the slag sliding structure is arranged on the bottom shield, and both the bottom shield and the side shield are provided with through holes and slag guiding structures.

[0016] The beneficial effect is that the bottom slag collecting device of the inclined shaft TBM provided by the present invention is a pioneering invention. The bottom slag collecting device of the inclined shaft TBM is provided with a through hole on the bottom plate of the shield and a shovel is arranged in the through hole, so that during the excavation of the inclined shaft TBM, the shovel is used to shovel up the virtual slag at the bottom of the tunnel, and then the shoveled virtual slag is guided to the slag chute structure by the slag guide structure arranged on the bottom plate and discharged, the slag cleaning efficiency is high, and the whole process can be synchronized with the excavation of the inclined shaft TBM, and the slag cleaning can be realized in time. At the same time, the slag cleaning process does not require the participation of staff, and the slag cleaning cost is low.

[0017] To achieve the above purpose, the technical solution of the inclined shaft TBM provided by the present invention is: An inclined shaft TBM comprises a main machine and a bottom slag collecting device of the inclined shaft TBM. The bottom slag collecting device of the inclined shaft TBM comprises a shield and a slag chute structure arranged on the shield. The shield comprises an arc-shaped bottom plate for fitting with a tunnel wall. A through hole is provided on the bottom plate for allowing slag at the bottom of the tunnel to pass from bottom to top. A shovel blade for scooping up the slag is provided in the through hole. A slag guiding structure for guiding the scooped slag into the slag chute structure is provided on the upper side of the bottom plate.

[0018] As a further improvement, the slag guiding structure includes a front baffle fixed on the bottom plate of the shield and located in front of the through hole, and a rear baffle located in the rear of the through hole. The space between the front baffle and the rear baffle constitutes a slag guiding trough for guiding the virtual slag. The slag chute structure is provided with a slag discharge hole connected to the slag guiding trough. An intercepting body for intercepting the virtual slag can be detachably provided between the tops of the front baffle and the rear baffle. The front baffle, the rear baffle and the intercepting body constitute the slag guiding structure.

[0019] As a further improvement, the interception body is an interception net.

[0020] As a further improvement, the inclined shaft TBM bottom debris collection device also includes an adjusting knife seat, which includes a fixed part and an adjusting part. The fixed part is arranged on the shield, and the shovel is installed on the adjusting part. An adjusting structure for changing the relative height of the adjusting part and the fixed part is arranged between the adjusting part and the fixed part.

[0021] As a further improvement, the adjustment structure includes an adjustment long hole arranged on one of the adjustment part and the fixed part, and a fastener arranged on the other and passing through the adjustment long hole, the fastener is used to fix the adjustment seat and the fixed seat, and at least two fasteners are provided along the length direction of the adjustment long hole.

[0022] As a further improvement, the adjustment structure includes a rotating shaft arranged on one of the adjusting part and the fixed part, and a matching hole arranged on the other part for the rotating shaft to pass through and capable of rotatably cooperating with the rotating shaft. A locking structure is also arranged between the adjusting part and the fixed part to lock the rotating shaft so that the adjusting part and the fixed part are relatively fixed.

[0023] As a further improvement, at least two through holes are arranged at intervals along the circumference of the shield.

[0024] As a further improvement, the through holes are symmetrically arranged on both sides of the slag sliding structure, and at least two through holes are arranged on both sides of the slag sliding structure.

[0025] As a further improvement, the shield includes a bottom shield and side shields located on both sides of the bottom shield in the circumferential direction, the slag sliding structure is arranged on the bottom shield, and both the bottom shield and the side shield are provided with through holes and slag guiding structures.

[0026] The beneficial effect is that the inclined shaft TBM provided by the present invention is an improvement on the prior art. The inclined shaft TBM is provided with a through hole on the bottom plate of the shield and a shovel is arranged in the through hole, so that during the excavation of the inclined shaft TBM, the shovel is used to shovel up the virtual slag at the bottom of the tunnel, and then the slag guide structure arranged on the bottom plate is used to guide the shoveled virtual slag to the slag chute structure to be discharged, the slag removal efficiency is high, and the whole process can be synchronized with the excavation of the inclined shaft TBM, and the slag removal can be realized in time. At the same time, the slag removal process does not require the participation of staff, and the slag removal cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a cross-sectional view of Example 1 of the inclined well TBM in the present invention; Figure 2 A cross-sectional view of another perspective of Example 1 of the inclined well TBM of the present invention; Figure 3 It is a partial structural schematic diagram of the adjusting tool holder of Example 1 of the inclined well TBM in the present invention; Figure 4 It is a schematic structural diagram of a mounting seat in an adjusting tool holder of Example 1 of a TBM for a deviated shaft in the present invention; Figure 5 It is a cross-sectional view of Example 13 of the inclined well TBM in the present invention; Description of reference numerals: 1. Bottom shield; 2. Bottom plate; 3. Slag chute hole; 4. Slag chute structure; 5. Through hole; 6. Shovel; 7. Adjustment knife seat; 71. Articulated seat; 72. Connector; 73. Mounting seat; 74. Rotating shaft; 75. Sleeve; 76. Adjustment long hole; 77. Fastening bolt; 8. Front baffle; 9. Rear baffle; 10. Interception net; 11. Seat body. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with embodiments.

[0029] In order to solve the problems in the prior art, the basic concept of the present invention is to provide a structure on the bottom shield to scoop up the virtual slag and guide the virtual slag into the slag chute structure, so as to improve the slag cleaning efficiency and reduce the slag cleaning cost.

[0030] Specific embodiment 1 of the inclined well TBM provided by the present invention: A inclined shaft TBM comprises a main machine and a slag collecting device at the bottom of the inclined shaft TBM.

[0031] See attached Figure 1 and attached Figure 2The bottom slag collecting device of the inclined shaft TBM includes a shield and a slag structure 4 arranged on the shield, wherein the shield includes a bottom shield 1, and the slag structure 4 is arranged in the middle of the bottom shield 1. The bottom shield 1 is provided with a slag hole 3 which penetrates front and back and is connected to the slag structure 4 above its bottom plate 2. The slag generated during tunnel excavation can enter the slag structure 4 from the slag hole 3 and be discharged backwards by the slag structure 4. The slag structure 4 is a prior art and will not be described in detail here.

[0032] The bottom plate 2 of the bottom shield 1 is an arc-shaped structure. During the construction process, the bottom plate 2 of the bottom shield 1 fits the tunnel wall, and the virtual slag is mainly located between the bottom plate 2 of the bottom shield 1 and the tunnel wall.

[0033] The bottom plate 2 of the bottom shield 1 is provided with through holes 5, through which the virtual slag below the bottom plate 2 passes from bottom to top and reaches the top of the bottom plate 2. The through holes 5 are long holes, and at least two through holes 5 are arranged at intervals along the circumference of the bottom plate 2. In one implementation of the present embodiment, the through holes 5 are symmetrically arranged on both sides of the slag chute structure 4, and four through holes 5 are arranged on both sides of the slag chute structure 4. The through holes 5 are arranged at intervals along the circumference, which can ensure that the through holes 5 can cover a larger range in the circumferential direction on the one hand, and can also ensure the structural strength of the bottom plate 2 of the bottom shield 1 on the other hand.

[0034] A scraper 6 is provided in each through hole 5. The scraper 6 is located at the rear side of the through hole 5, and an inclined blade is provided at the front end of the scraper 6. The blade is slightly lower than the bottom surface of the bottom plate 2, so that the scraper 6 is used to scrape up the slag. An adjustment blade holder 7 is provided on the bottom plate 2, and the scraper 6 is installed on the adjustment blade holder 7. The adjustment blade holder 7 can be used to adjust the height of the scraper 6. After the scraper 6 is worn out after long-term use, the height of the scraper 6 can be lowered to continue to be lower than the bottom surface of the bottom plate 2, so that the scraper 6 can continue to work.

[0035] See attached Figure 3 and attached Figure 4 The adjusting blade seat 7 specifically includes an articulated seat 71, a connecting body 72 and a mounting seat 73, wherein the articulated seat 71 is fixedly arranged on the base plate 2, the scraper 6 is fixedly installed on the mounting seat 73, and the connecting body 72 is arranged between the articulated seat 71 and the mounting seat 73.

[0036] The hinge seat 71 is provided with a rotating shaft 74, and the connecting body 72 is provided with a sleeve 75, and the inner hole of the sleeve 75 forms a matching hole for being sleeved on the rotating shaft 74 and rotating with the rotating shaft 74. Both ends of the rotating shaft 74 are connected with fastening nuts through threads, and after the connecting body 72 is adjusted to a suitable angle, the fastening nuts are tightened, so that the corresponding end of the sleeve 75 is pressed against the hinge seat 71, and then the connecting body 72 and the hinge seat 71 are relatively fixed.

[0037] Two parallel arranged adjustment long holes 76 are provided on the mounting seat 73, and four fastening bolts 77 are threadedly connected to one end of the connecting body 72 away from the hinge seat 71. Two fastening bolts 77 are provided in each adjustment long hole 76, and the fastening bolts 77 in each adjustment long hole 76 are arranged along the length direction of the corresponding adjustment long hole 76, so that the fastening bolts 77 can guide the up and down adjustment of the mounting seat 73 and prevent the mounting seat 73 from rotating relative to the connecting body 72. After tightening the fastening bolts 77, the mounting seat 73 and the connecting body 72 can be relatively fixed.

[0038] By adjusting the relative height of the mounting seat 73 and the connecting body 72, the height of the scraper 6 can be adjusted; by adjusting the relative angle between the connecting body 72 and the articulated seat 71, the angle of the scraper 6 can be adjusted, and the height of the scraper 6 can also be indirectly adjusted. The above two adjustment methods can be used during use, and one of the adjustment methods can be used to adjust the height of the scraper 6 according to the situation.

[0039] When only the relative height between the mounting seat 73 and the connecting body 72 is adjusted, the mounting seat 73 constitutes the adjusting part, the connecting body 72 and the hinge seat 71 constitute the fixing part, and the adjusting long hole 76 and the fastening bolt 77 constitute the adjusting structure; when only the relative angle between the connecting body 72 and the hinge seat 71 is adjusted, the connecting body 72 and the mounting seat 73 together constitute the adjusting part, the hinge seat 71 constitutes the fixing part, and the matching hole, the rotating shaft 74 and the fastening bolt 77 constitute the adjusting structure.

[0040] The structure for adjusting the relative height between the mounting seat 73 and the connecting body 72 may also have other forms. For example, in another embodiment, the adjusting long hole 76 is provided on the connecting body 72, and the fastening bolt 77 is provided on the mounting seat 73; the fastening bolt 77 is a form of a fastener. In another embodiment, the fastener may also be a screw rod fixed on the connecting body 72 and a nut installed on the screw rod. During assembly, the screw rod needs to be passed through the adjusting long hole 76 on the mounting seat 73 first, and then the nut is screwed onto the screw rod and tightened to fix the mounting seat 73 and the connecting body 72 relative to each other.

[0041] The structure for adjusting the relative angle between the connecting body 72 and the hinge seat 71 can also have other forms. For example, in another embodiment, the rotating shaft 74 can be fixedly connected to the connecting piece, and the hole on the hinge seat 71 that cooperates with the rotating shaft 74 constitutes a matching hole, and the end of the rotating shaft 74 passes through the hinge seat 71 and is threadedly connected to the fastening nut; in the above embodiment, the fastening nut is used to lock the rotating shaft 74 with the connecting body 72 and the hinge seat 71 relative to each other to form a locking structure. In other embodiments, the locking structure can also be a top screw. In this embodiment, the rotating shaft 74 is fixedly connected to the connecting piece, and the hole on the hinge seat 71 that cooperates with the rotating shaft 74 constitutes a matching hole. A threaded hole is opened on the hinge seat 71 perpendicular to the axis of the matching hole, and the top screw is installed in the threaded hole. After tightening the top screw, the rotating shaft 74 can be fixed relative to the hinge seat 71.

[0042] A slag guiding structure for guiding the shoveled virtual slag to the slag chute structure 4 is provided on the upper side of the bottom plate 2. The slag guiding structure includes a front baffle 8 and a rear baffle 9 fixed on the upper side of the bottom plate 2 of the bottom shield 1, wherein the front baffle 8 is located in front of the through hole 5, and the rear baffle 9 is located behind the through hole 5, and a slag guiding groove for guiding virtual slag is formed between the front baffle 8 and the rear baffle 9. One end of the front baffle 8 and the rear baffle 9 in the circumferential direction is fixedly connected to the slag chute structure 4, and a slag discharge hole connected to the slag guiding groove is provided on the slag chute structure 4. After the shoveled virtual slag enters the slag guiding groove, it will naturally flow along the slag guiding groove to the slag chute structure 4 under the action of gravity, and finally enter the slag chute structure 4 through the slag discharge hole, and be discharged backwards with the slag in the slag chute structure 4.

[0043] The slag guiding structure also includes an intercepting body detachably arranged between the top of the front baffle 8 and the rear baffle 9. The intercepting body can prevent the shoveled slag from splashing. The intercepting body can also be removed when the slag guiding groove needs to be cleared, the shovel blade 6 needs to be adjusted, or the shovel blade 6 needs to be replaced, so as to facilitate the operation of the staff.

[0044] The interception body is specifically an interception net 10, and the two sides of the interception net 10 are fixedly connected to the front baffle 8 and the rear baffle 9 by binding. The interception net 10 can have a good interception effect on the slag and stone, and can also play a buffering role on the slag and stone, reduce the impact energy of the slag and stone, and facilitate the staff to observe the situation in the slag guide chute. The interception net 10 can be a rigid net or a flexible net. The flexible interception net 10 can play a better buffering role.

[0045] The bottom slag collection device of the inclined shaft TBM in this embodiment can be modified on the basis of the existing bottom shield 1, so the investment cost of the equipment is low, and it will not take up extra space in the tunnel. While the inclined shaft TBM is excavating forward, the bottom slag collection device of the inclined shaft TBM can be used to clean the virtual slag at the bottom of the tunnel, ensuring the timeliness of the virtual slag cleaning. Moreover, after the virtual slag is shoveled up, it can be discharged into the slag chute structure 4 under the guidance of the slag guide structure, and the virtual slag can be discharged using the original slag chute structure 4, and the cleaning efficiency is high. In addition, the entire slag cleaning process is carried out automatically, without the participation of operators, and the labor cost is low.

[0046] Specific embodiment 2 of the inclined well TBM provided by the present invention: This embodiment is based on Embodiment 1, and differs from Embodiment 1 in that the intercepting body in this embodiment is a top plate, the front end of the top plate is hinged to the front baffle, and the rear end of the top plate is connected to the rear baffle by a lock. When the top plate needs to be opened, the top plate can be opened by only opening the lock.

[0047] In other implementations of this embodiment, the top plate may also be fixedly connected to the front baffle and the rear baffle by bolts, and may also be convenient for disassembly and installation.

[0048] Specific embodiment 3 of the inclined well TBM provided by the present invention: This embodiment is based on the first embodiment, and is different from the first embodiment in that the slag guide structure in this embodiment does not have a top plate, but only has a front baffle and a rear baffle. When the slag is relatively uniform and the excavation speed is slow, there is less splashing of slag, and this slag guide structure can be used.

[0049] Specific embodiment 4 of the inclined well TBM provided by the present invention: This embodiment is based on Embodiment 1, and differs from Embodiment 1 in that the slag guiding structure in this embodiment only includes a rear baffle. When the slag is relatively uniform and the excavation speed is slow, there is less splashing of slag, and this slag guiding structure can be used.

[0050] Specific embodiment 5 of the inclined well TBM provided by the present invention: This embodiment is based on Embodiment 1, and differs from Embodiment 1 in that the slag guiding structure in this embodiment is a profile that is arc-shaped as a whole and has a U-shaped cross-section. The opening of the profile is located radially outside thereof. The profile is buckled on the upper side of the bottom plate so that the through hole is covered by the profile. The shoveled virtual slag can flow along the inner cavity of the profile, and the profile constitutes the slag guiding structure.

[0051] Specific embodiment 6 of the inclined well TBM provided by the present invention: This embodiment is based on the first embodiment, and is different from the first embodiment in that the through holes in this embodiment are arranged obliquely, wherein the through holes far from the slag chute structure are located forward, and the through holes close to the slag chute structure are located backward, and the front baffle and the rear baffle are also arranged obliquely accordingly. During the upward diagonal excavation, the shoveled slag will mainly fall on the inner corner between the rear baffle and the bottom plate, so the oblique arrangement of the rear baffle can be more conducive to the slag sliding into the slag chute structure under its own weight.

[0052] Specific embodiment 7 of the inclined well TBM provided by the present invention: This embodiment is based on Embodiment 1, and differs from Embodiment 1 in that only two through holes are provided in this embodiment, and the two through holes are respectively located on the left and right sides of the slag chute structure, and the length of the two through holes is equal to the total length of the four through holes in Embodiment 1.

[0053] When the number of slag chute holes is reduced and the length is increased, a larger range can be continuously covered in the circumferential direction, thereby improving the slag cleaning effect. However, this will affect the strength of the bottom plate of the bottom shield. Therefore, in order to ensure the strength of the bottom plate, multiple reinforcing ribs can be set on the upper side of the bottom plate.

[0054] Specific embodiment 8 of the inclined well TBM provided by the present invention: This embodiment is based on Embodiment 1, and differs from Embodiment 1 in that two rows of through holes are arranged in the front-to-back direction in this embodiment, and the two rows of through holes are staggered, which can provide a slag cleaning effect.

[0055] Specific embodiment 9 of the inclined well TBM provided by the present invention: This embodiment is based on Embodiment 1, and differs from Embodiment 1 in that the shield in this embodiment further includes two side shields, which are respectively located on both sides of the circumference of the bottom shield. The side shields are also provided with through holes and slag guiding structures. The slag guiding structure on the side shields is similar to and communicated with the slag guiding structure on the bottom shield, and the virtual slag shoveled up at the side shields can be sent to the slag sliding structure through the slag guiding structure.

[0056] Specific embodiment 10 of the inclined well TBM provided by the present invention: This embodiment is based on Embodiment 1, and differs from Embodiment 1 in that the articulated seat and the connecting body in this embodiment are an integrated structure, so the height of the scraper in this embodiment can only be adjusted by raising and lowering the mounting seat.

[0057] Specific embodiment 11 of the inclined well TBM provided by the present invention: This embodiment is based on Embodiment 1, and differs from Embodiment 1 in that, in this embodiment, the connecting body and the mounting seat are an integrated structure, so the angle and height of the scraper in this embodiment can only be adjusted by rotating the connecting body.

[0058] Specific embodiment 12 of the inclined well TBM provided by the present invention: This embodiment is based on Embodiment 1, and differs from Embodiment 1 in that, in the adjusting tool holder in this embodiment, the fixing part is a slide rail fixedly arranged on the bottom plate, the adjusting part is a slider slidingly matched with the slide rail guide, and the adjusting structure is an oil cylinder fixed on the slide rail, and the piston rod end of the oil cylinder is fixedly connected to the slider, and the height of the scraper can be automatically adjusted by using the oil cylinder.

[0059] Specific embodiment 13 of the inclined well TBM provided by the present invention: This embodiment is based on embodiment 1, and the difference from embodiment 1 is that, see attached Figure 5 In this embodiment, the adjusting blade seat 7 is not provided, and the scraper 6 in this embodiment is directly fixedly mounted on the base plate 2.

[0060] Specifically, a seat body 11 integrally connected to the base plate 2 can be provided on the rear side wall through the hole 5, the upper surface of the seat body 11 is lower than the upper surface of the base plate 2, the lower surface of the seat body 11 is aligned with the lower surface of the base plate 2, the scraper 6 is installed on the upper side of the seat body 11 and the scraper 6 is fixedly connected to the seat body 11 by bolts, and the front end of the scraper 6 extends downward over the seat body 11 so that the blade can be lower than the lower surface of the base plate 2.

[0061] In this embodiment, if the scraper 6 is worn, it is necessary to replace it with a new scraper 6 in time.

[0062] Specific embodiments of the inclined shaft TBM bottom slag collection device provided by the present invention: The bottom debris collection device of the inclined shaft TBM is the bottom debris collection device of the inclined shaft TBM in any one of the specific embodiments 1-13 of the inclined shaft TBM mentioned above, and will not be described in detail here.

[0063] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for collecting soil at the bottom of a TBM in an inclined shaft, characterized in that: The invention comprises a shield and a slag chute structure arranged on the shield. The shield comprises an arc-shaped bottom plate for fitting with the tunnel wall. A through hole is provided on the bottom plate for allowing the virtual slag at the bottom of the tunnel to pass from bottom to top. A shovel blade for scooping up the virtual slag is provided in the through hole. A slag guiding structure for guiding the scooped virtual slag into the slag chute structure is provided on the upper side of the bottom plate.

2. The device for collecting dirt at the bottom of the inclined shaft TBM according to claim 1 is characterized in that: The slag guiding structure includes a front baffle fixed on the bottom plate of the shield and located in front of the through hole, and a rear baffle located in the rear of the through hole. The space between the front baffle and the rear baffle constitutes a slag guiding trough for guiding the virtual slag. The slag chute structure is provided with a slag discharge hole connected to the slag guiding trough. An intercepting body for intercepting the virtual slag is also detachably provided between the tops of the front baffle and the rear baffle. The front baffle, the rear baffle and the intercepting body constitute the slag guiding structure.

3. The device for collecting dirt at the bottom of the inclined shaft TBM according to claim 2 is characterized in that: The interception body is an interception net.

4. The device for collecting dirt at the bottom of an inclined shaft TBM according to any one of claims 1 to 3, characterized in that: The inclined shaft TBM bottom debris collection device also includes an adjusting knife seat, which includes a fixing part and an adjusting part. The fixing part is arranged on the shield, and the shovel is installed on the adjusting part. An adjusting structure for changing the relative height of the adjusting part and the fixing part is arranged between the adjusting part and the fixing part.

5. The device for collecting dirt at the bottom of the inclined shaft TBM according to claim 4 is characterized in that: The adjustment structure includes an adjustment long hole arranged on one of the adjustment part and the fixing part, and a fastener arranged on the other and passing through the adjustment long hole. The fastener is used to fix the adjustment seat and the fixing seat. At least two fasteners are provided along the length direction of the adjustment long hole.

6. The device for collecting dirt at the bottom of the inclined shaft TBM according to claim 4 is characterized in that: The adjustment structure includes a rotating shaft arranged on one of the adjusting part and the fixing part, and a matching hole arranged on the other part for the rotating shaft to pass through and capable of rotating with the rotating shaft. A locking structure is also arranged between the adjusting part and the fixing part to lock the rotating shaft so that the adjusting part and the fixing part are relatively fixed.

7. The device for collecting dirt at the bottom of an inclined shaft TBM according to any one of claims 1 to 3, characterized in that: At least two through holes are arranged at intervals along the circumference of the shield.

8. The device for collecting dirt at the bottom of the inclined shaft TBM according to claim 6 is characterized in that: The through holes are symmetrically arranged on both sides of the slag sliding structure, and at least two through holes are arranged on both sides of the slag sliding structure.

9. The device for collecting bottom debris of an inclined shaft TBM according to any one of claims 1 to 3, characterized in that: The shield comprises a bottom shield and side shields located at both sides of the bottom shield in a circumferential direction. The slag sliding structure is arranged on the bottom shield. Both the bottom shield and the side shield are provided with through holes and slag guiding structures.

10. A TBM for inclined shaft, comprising a main machine, characterized in that: It also includes the inclined shaft TBM bottom debris collection device as described in any one of claims 1-9.

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