Slag slipping device for inclined shaft TBM and inclined shaft TBM

Abstract

The invention discloses a slag slipping device for an inclined shaft TBM and the inclined shaft TBM. The problem that in the prior art, in the slag tapping process of an inclined shaft TBM, slag stone is prone to blocking is solved. The TBM slag sliding device for the inclined shaft comprises a slag collecting ring and a base and further comprises a slag sliding groove, an assembling through groove is formed in the slag collecting ring, a slag stone intercepting mechanism is arranged in the assembling through groove, the slag inlet end of the slag sliding groove is located in the assembling through groove and corresponds to the slag stone intercepting mechanism, and the slag sliding groove is connected with the base through an angle adjusting mechanism. The angle adjusting mechanism adjusts the inclination angle of the slag chute relative to the base; an auxiliary slagging-off mechanism is connected to the slag sliding groove through a sliding mechanism, and the sliding mechanism adjusts the position of the auxiliary slagging-off mechanism on the slag sliding groove. By arranging the angle adjusting mechanism at the bottom of the slag chute, when the heading machine performs slope heading work, the slag chute can rotate along the rotating shaft through stretching of the hydraulic rod, so that the angle of the slag chute is adaptively adjusted, the falling kinetic energy of slag stones is increased or reduced, and the problem that self-slag-sliding is difficult to realize is solved.

Description

Technical Field

[0001] The invention relates to the technical field of inclined shaft construction, in particular to a slag discharge device of an inclined shaft TBM used for inclined shaft construction. Background Art

[0002] In recent years, with the rapid development of the domestic economy and the progress of tunnel engineering construction technology, my country has become the country with the largest scale, the largest number, the most complex geological conditions and structural forms, and the fastest development of construction technology in the world. Among them, the shield method, as an important construction method for modern tunnel and underground engineering projects, is widely used in urban rail transit projects, highway projects, railway projects, urban integrated pipeline corridor tunnels and other engineering fields due to its advantages of high mechanization, low construction safety risk, fast excavation speed, small impact on the construction environment, and strong adaptability to complex geological conditions. The scale of shield tunnel engineering construction is gradually expanding. With the continuous development of shield construction technology, the types of shield machines are becoming more and more abundant, and more and more new technologies and processes are used on shield machines, and the geological conditions they can adapt to are becoming more and more complex.

[0003] Under the existing construction technology conditions, the layout of the inclined shaft of the water diversion system of the pumped storage power station is limited by the construction capacity of the reverse drilling equipment. The length of a single-stage inclined shaft generally does not exceed 400m. High-head power stations mostly adopt the layout of three-level horizontal tunnels + two-level inclined shafts; the inclination of the inclined shaft needs to create conditions for self-sludge chute, and the layout angle is generally between 45° and 60°. If the inclined shaft is constructed by TBM, the inclined shaft angle can be between 10° and 60°. The more economical inclined shaft angle is 30°~60° (self-sludge chute is possible). If TBM construction is adopted, the three-level horizontal tunnel + two-level inclined shaft is generally arranged as a one-stage long inclined shaft plan, and the length of a single-stage inclined shaft can reach 800~1000m.

[0004] The sensitivity test of TBM excavation materials for different slag chute inclination angles was carried out. The test results show that when the slag chute inclination angle is greater than or equal to 28°, the excavation materials can slide slag by themselves, and when it is less than or equal to 26°, the excavation materials do not have the conditions for self-sliding, which will cause slag to be blocked in the slag chute, causing the shield machine to stop for inspection and maintenance, making the excavation efficiency lower. Therefore, we propose a slag chute device for inclined shaft TBM to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a slag discharge device for inclined shaft TBM and inclined shaft TBM, which solves the problem of easy blockage of slag and stone in the slag discharge process of inclined shaft TBM in the prior art.

[0006] The technical solution of the present invention is implemented as follows: a slag chute device for inclined shaft TBM, comprising a slag collecting ring and a base, and also comprising a slag chute, the slag collecting ring is provided with an assembly slot, a slag interception mechanism is provided in the assembly slot, the slag inlet end of the slag chute is located in the assembly slot and corresponds to the slag interception mechanism, the slag chute is connected to the base through an angle adjustment mechanism, the angle adjustment mechanism adjusts the inclination angle of the slag chute relative to the base; the slag chute is connected to an auxiliary slag removal mechanism through a sliding mechanism, and the sliding mechanism adjusts the position of the auxiliary slag removal mechanism on the slag chute. When the inclined shaft TBM is working, the angle of the slag chute and the opening of the slag interception mechanism are adjusted as needed to ensure the smooth passage of slag and effectively avoid slag discharge blockage caused by slag accumulation.

[0007] Further preferably, the angle adjustment mechanism includes N hydraulic rods obliquely arranged on the base, N≥2, the hydraulic rods are evenly distributed on the base in a linear array, the top ends of the N hydraulic rods are connected to a support plate seat, the front end of the support plate seat is hinged in an assembly groove, and the rear end of the support plate seat is connected to the base through a connecting rod assembly; the connecting rod assembly includes a first connecting rod and a second connecting rod hinged to each other, the first connecting rod is hinged to the base, and the second connecting rod is hinged to the support plate seat; a rotating shaft is provided in the assembly groove, a connecting plate is provided on the rotating shaft, and the connecting plate is fixedly connected to the support plate seat.

[0008] Further preferably, a vibration mechanism is provided between the bottom of the slag chute and the support plate seat; the vibration mechanism includes a vibrator arranged at the bottom of the slag chute and a telescopic guide rod arranged between the bottom of the slag chute and the support plate seat, and a spring is sleeved on the telescopic guide rod.

[0009] Further preferably, the slag intercepting mechanism includes a slag receiving pipe fixed on the slag collecting ring, the slag receiving pipe obliquely passes through the assembly slot and corresponds to the slag chute; a wedge-shaped slag blocking block is provided at the bottom of the slag receiving pipe, and the wedge-shaped blocking block is lifted and lowered relative to the slag receiving pipe by a lifting assembly, and the opening of the slag receiving pipe is adjusted; the slag collecting ring is also provided with an end cover, which seals the assembly slot.

[0010] Further preferably, the lifting assembly includes a push rod arranged at the bottom of the wedge-shaped stopper, both ends of the push rod are connected with racks, the rack is limited in the vertical guide rail, the vertical guide rail is fixed in the assembly groove, and a gear is fixed on the rotating shaft installed in the assembly groove; the gear is meshed with the rack or the gear is connected to the rack through a transmission gear, and the transmission gear is rotatably arranged in the assembly groove.

[0011] Further preferably, the sliding mechanism includes an upper cover arranged above the slag chute, a rectangular slide groove is opened on the upper cover, a slide seat that can slide relative to the upper cover is arranged in the rectangular slide groove, and the auxiliary slag removal mechanism is arranged on the slide seat; the upper cover is connected to the wall of the slag chute through a telescopic column, a threaded rod arranged along the length direction of the rectangular slide groove is arranged in the rectangular slide groove, and the lower end of the threaded rod is transmission-connected to the fourth motor arranged on the upper cover; the slide seat is threadedly matched with the threaded rod, a guide rail is arranged on the wall of the rectangular slide groove, and the slide seat is slidingly matched with the guide rail.

[0012] Further preferably, the auxiliary scraping mechanism includes an assembly box seat, a scraping wheel is provided at the bottom of the assembly box seat, the scraping wheel is rotatably connected to the assembly box seat through a bearing support and the scraping wheel is transmission connected to a third motor arranged on the assembly box seat, and the scraping wheel extends into the slag chute.

[0013] Further preferably, the auxiliary slag removal mechanism also includes a second operating arm and a first operating arm which are arranged in the assembly box seat and hinged to each other, one end of the second operating arm is hinged to the first operating arm through a second rotating rod, and the other end is provided with a slag removal bucket, the first operating arm is rotatably connected to the assembly box seat through the first rotating rod, a connecting arm is hinged on the outer side wall of the assembly box seat through a connecting shaft, the connecting arm is connected to the second operating arm through a connecting pin, and the connecting arm is connected to a first driving mechanism arranged on the assembly box seat, and the first driving mechanism drives the connecting arm to rotate around the connecting shaft while the first operating arm and the second operating arm rotate accordingly.

[0014] Further preferably, the first driving mechanism includes a first motor arranged in the assembly box seat, a cam is connected to the output shaft of the first motor, and the cam is hinged to the third connecting rod hinged on the connecting arm; a limiting groove is provided on the side wall of the assembly box seat, a sliding groove is provided on the connecting arm, and the connecting pin passes through the limiting groove and slides with the sliding groove; support arms are symmetrically provided on both sides of the scraper bucket, and the support arms are connected to the second motor arranged at the front end of the second operating arm; fourth connecting rods hinged to the support arms are provided on both sides of the scraper bucket, and the fourth connecting rods are hinged to the support arms through support rods to form a triangular connecting rod mechanism.

[0015] An inclined shaft TBM comprises the slag sluice device for the inclined shaft TBM, wherein the slag sluice device is arranged in a shield body and located above a belt conveyor, the slag collecting ring is located behind a cutter disc, and a slag receiving pipe of a slag intercepting mechanism corresponds to a cutter disc slag chute on the cutter disc.

[0016] The beneficial effects of the present invention are as follows: by setting an angle adjustment mechanism at the bottom of the slag chute, when the tunneling machine performs slope excavation work, the slag chute can be rotated along the rotating shaft by the extension and contraction of the hydraulic rod, so as to adaptively adjust the angle of the slag chute, thereby increasing or reducing the kinetic energy of the falling slag, and avoiding the problem that it is difficult to achieve self-sliding. By setting a slag interception mechanism, a wedge-shaped slag blocking block is used to slide up and down inside the slideway of the slag receiving pipe, and the slag cut by the cutter disc is timely blocked, so as to prevent the continuous accumulation of slag when the slag chute is blocked, so that the slag can pass through the slag chute smoothly. By setting an auxiliary slag scraping mechanism on the slag chute, the operating arm and the scraping bucket form a bionic excavation action, so that the scraping bucket scrapes the blocked slag, and actively handles the slag when it is difficult to slag by itself. In addition, the auxiliary slag scraping mechanism uses a cam to drive the connecting rod to rotate, so that the connecting arm realizes reciprocating motion under the drive of the connecting rod, and through calculation, the position relationship between the cam and the connecting rod is reasonably arranged to make the return of the connecting arm faster, which is convenient for improving work efficiency. The slag discharge device of the present invention is used for inclined shaft TBM construction, is adapted to the construction at different inclination angles of the inclined shaft, effectively avoids the problem of slag blockage, and improves the slag discharge efficiency and construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the slag sliding device of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention without the end cover; Figure 3 for Figure 2 A partial enlarged view of point B in the middle; Figure 4 This is a schematic diagram of the gear of the lifting assembly driving the rack to move in Example 2; Figure 5 It is a schematic diagram of a half-section structure of a slag sliding device of the present invention; Figure 6 for Figure 5 A partial enlarged view of the middle part; Figure 7 This is the left side schematic diagram of the auxiliary slag removal mechanism; Figure 8 This is the right side schematic diagram of the auxiliary slag removal mechanism; Fig. 9 This is a schematic diagram of the interior of the assembly box seat of the auxiliary slag removal mechanism. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1 , 2 As shown, in Example 1, a slag chute device for inclined shaft TBM includes a slag collecting ring 1 and a base 4. The base 4 serves as a supporting structure for the entire slag chute device. When in use, the base is fixed in the shield body. The slag collecting ring is located behind the cutter disc and corresponds to the slag chute of the cutter disc. In this embodiment, the slag chute device also includes a slag chute 57. The slag chute 57 preferably adopts a groove plate with a U-shaped cross-section to prevent the leakage of slag. The slag collecting ring 1 is provided with an assembly groove 11, which is opened in the middle of the slag collecting ring and the groove is opened obliquely to facilitate the flow of slag. A slag interception mechanism 2 is provided in the assembly groove 11; the slag cut off by the cutter disc is blocked to prevent the continuous accumulation of slag when the slag chute is blocked, so that the slag can pass through the slag chute smoothly. The slag inlet end of the slag chute 57 is located in the assembly groove 11 and corresponds to the slag interception mechanism 2; the slag coming out of the slag interception mechanism 2 can enter the slag chute smoothly. The slag chute 57 is connected to the base 4 through an angle adjustment mechanism 5. The angle adjustment mechanism 5 adjusts the inclination angle of the slag chute 57 relative to the base 4 to adapt to the slag discharge of the inclined shaft TBM at different slopes. The slag chute 57 is connected to an auxiliary slag removal mechanism 8 through a sliding mechanism 7. The sliding mechanism 7 adjusts the position of the auxiliary slag removal mechanism 8 on the slag chute 57. The auxiliary slag removal mechanism 8 removes the blocked slag and performs active slag removal when it is difficult to remove the slag by itself.

[0021] When the tunnel boring machine is working, the position of the tunnel boring machine is adjusted according to the needs of tunneling or the formation structure. Under such working conditions, the inclination angle of the slag chute will change (become larger or smaller), resulting in excessive impact on the rear slag discharge equipment during the slag discharge process or slow slag discharge, which is easy to cause blockage; at this time, the angle adjustment mechanism 5 can be used to adjust the inclination angle of the slag chute 57 relative to the base 4 to improve the slag discharge situation. When slag discharge blockage occurs, the slag interception mechanism 2 blocks the slag cut by the cutter head to prevent the continuous accumulation of slag when the slag chute is blocked, and at the same time, the auxiliary slag removal mechanism 8 is started to actively remove the blocked slag to allow the slag to flow smoothly.

[0022] Embodiment 2, a slag chute device for inclined shaft TBM, is further optimized on the basis of embodiment 1. The angle adjustment mechanism 5 described in this embodiment includes N hydraulic rods 51 obliquely arranged on the base 4, N≥2, and in this embodiment, N=3 is taken as an example. Three hydraulic rods 51 are evenly distributed on the base 4 in a linear array. The three hydraulic rods are arranged obliquely relative to the base and can be arranged perpendicular to the slag chute. In this embodiment, the top ends of the three hydraulic rods 51 are connected to a support plate seat 58 through a joint hinge 52; the support plate seat 58 provides support for the slag chute. The front end of the support plate seat 58 is hinged in the assembly groove 11 to form a first hinge point. Under the telescopic push of the hydraulic rod 51, the support plate seat 58 supports the slag chute 57 to rotate around the first hinge point, thereby realizing the adjustment of the inclination angle of the slag chute. The rear end of the support plate seat 58 is connected to the base 4 through a connecting rod assembly. Preferably, the connecting rod assembly in this embodiment includes a first connecting rod 53 and a second connecting rod 54 which are hinged to each other, wherein the first connecting rod 53 is hinged to the base 4, and the second connecting rod 54 is hinged to the support plate seat 58; a rotating shaft 55 is rotatably provided in the assembly through groove 11, and a connecting plate 56 is fixedly provided on the rotating shaft 55, and the connecting plate 56 is fixedly connected to the support plate seat 58. The rotation of the rotating shaft drives the connecting plate 56 and the support plate seat 58 to rotate.

[0023] In this embodiment, a vibration mechanism 6 is provided between the bottom of the slag chute 57 and the support plate seat 58. Specifically, the vibration mechanism 6 includes a vibrator 61 provided at the bottom of the slag chute 57 and a telescopic guide rod 62 provided between the bottom of the slag chute 57 and the support plate seat 58, and a spring 63 is sleeved on the telescopic guide rod 62. The input end of the vibrator 61 is electrically connected to the output end of the external power supply through an external control switch group. Through the vibration principle of the vibrator, the slag chute can be continuously vibrated, further assisting the falling of the slag stone, avoiding the blockage of the slag stone, and realizing smooth slag slitting.

[0024] like Figure 6As shown, the slag interception mechanism 2 in this embodiment includes a slag receiving pipe 22 fixed on the slag collecting ring 1. The slag receiving pipe 22 adopts an L-shaped slag discharge pipe connection to adapt to the slag discharge of the cutter disc. At the same time, in order to expand the slag discharge channel, the cross-section of the slag receiving pipe can be rectangular. The slag receiving pipe 22 obliquely passes through the assembly groove 11 and corresponds to the slag chute 57, ensuring that the slag coming out of the slag receiving pipe can smoothly enter the slag chute. A wedge-shaped slag blocking block 23 is provided at the bottom of the slag receiving pipe 22. The wedge-shaped blocking block 23 is lifted and lowered relative to the slag receiving pipe 22 by a lifting assembly, and the opening of the slag receiving pipe 22 is adjusted; that is, when the wedge-shaped blocking block is fully raised, the slag receiving pipe can be blocked, and the slag cut off by the cutter disc can be blocked in time, so as to prevent the continuous accumulation of slag when the slag chute is blocked, so that the slag can smoothly pass through the slag chute. The slag collecting ring 1 is also provided with an end cover 21, which blocks the assembly slot 11 to prevent slag from entering the assembly slot 11 without passing through the slag receiving pipe 22, thereby causing impact damage to the angle adjustment mechanism 5, the vibration mechanism 6 and other components.

[0025] like Figure 4 As shown, the lifting assembly in this embodiment includes a push rod 24 arranged at the bottom of a wedge-shaped stopper 23, the push rod is fixedly connected to the wedge-shaped stopper, and racks 26 are connected to both ends of the push rod 24, and the racks are arranged vertically. The racks 26 are limited in the vertical guide rails 27, and the vertical guide rails 27 are fixed in the assembly slot 11. A gear 25 is fixed on the rotating shaft 55 installed in the assembly slot 11, and the gear 25 is connected to the rack 26 through a transmission gear 28. The transmission gear 28 is rotatably arranged in the assembly slot 11; at this time, the gear 25 is meshed with the transmission gear 28, and the transmission gear 28 is meshed with the rack. Combined with the connecting rod assembly at the rear end of the support plate seat 58, the lifting assembly forms a linkage structure with the support plate seat. Specifically, the rotating shaft 55 is rotatably set in the assembly slot 11. The support plate seat 58 drives the rotating shaft to rotate around its axis under the action of the hydraulic rod 51. At the same time, the gear rotates with the rotating shaft and drives the transmission gear to rotate. The rack moves up and down under the action of the transmission gear, realizing the linkage between the wedge-shaped block 23 and the slag chute. When the slag chute is blocked, it is necessary to rotate the support plate seat 58 downward (the inclination angle becomes larger) and the wedge-shaped block intercepts the slag. The specific operation is: Figure 2As shown, the hydraulic rod retracts, and the support plate seat 58 rotates downward around the axis of the shaft, driving the shaft and the gear to rotate counterclockwise. At this time, the transmission gear rotates clockwise, and the rack moves upward under the action of the transmission gear, pushing up the wedge-shaped block to block the slag pipe. In other words, when the slag chute is blocked, the inclination angle of the slag chute becomes larger, which facilitates the faster flow of slag and stone. At the same time, the wedge-shaped block is lifted up to intercept the slag and stone in the slag pipe, reducing the accumulation of slag and stone on the slag chute to avoid the effect of more and more blockage. When the slag chute is no longer blocked, the inclination angle of the slag chute is reduced, and the wedge-shaped block is lowered at the same time, and the slag chute channel of the slag pipe is opened. Through the above-mentioned linkage operation, without the use of the driving motor, it is ensured that the wedge-shaped block and the slag chute react at the same time, with high timeliness.

[0026] like Figure 2 , 3 As shown, embodiment 3 is a slag chute device for inclined shaft TBM. The difference between this embodiment and embodiment 2 is that the gear 25 in this embodiment is directly meshed with the rack 26, and the reversing transmission of the transmission gear is not required. At this time, the rotating shaft 55 needs to be connected to the motor, and the hydraulic rod can also be an electric telescopic rod, and the connecting plate 56 is rotatably connected to the rotating shaft through the bearing, and the gear is fixed to the rotating shaft through the key; at this time, the wedge block and the slag chute do not have a linkage function. When the slag chute is blocked, the support plate seat 58 needs to be rotated downward (the inclination angle becomes larger) and the wedge block intercepts the slag. The specific operation is that the hydraulic rod retracts, the support plate seat 58 rotates downward around the rotating shaft, and the motor connected to the rotating shaft is started at the same time. The motor drives the rotating shaft and the gear to rotate clockwise, and the rack moves upward under the action of the transmission gear, and the wedge block is lifted up to block the docking slag pipeline. In this embodiment, the motor and the hydraulic rod are used to control the wedge block and the slag chute respectively. The two actions can be performed simultaneously or independently in steps, which expands the scope of application and is easy to control.

[0027] like Figure 5As shown, embodiment 4 is a slag removal device for inclined shaft TBM, which is further optimized on the basis of embodiment 2 or 3. The sliding mechanism 7 described in this embodiment includes an upper cover 71 arranged above the slag chute 57, and the upper cover 71 matches the slag chute to prevent the leakage of slag. In this embodiment, a rectangular chute 76 is opened in the middle of the upper cover 71, and a slide seat 75 that can slide relative to the upper cover 71 is arranged in the rectangular chute 76. The auxiliary slag removal mechanism 8 is arranged on the slide seat 75 to realize the movement of the slag removal mechanism relative to the slag chute, so as to realize timely slag removal at different positions of the slag chute, which can effectively prevent the slag chute from being blocked and improve the slag removal efficiency of the slag chute. Specifically, the upper cover 71 described in this embodiment is connected to the wall of the slag chute 57 through a telescopic column 72. The telescopic column can be a hydraulic cylinder, which can control the vertical distance between the upper cover 71 and the slag chute 57. A threaded rod 74 is arranged along the length direction of the rectangular chute 76. To ensure the stability of the slide, the number of threaded rods can be set to 2. The lower end of the threaded rod 74 is connected to the fourth motor 73 arranged on the upper cover 71. The slide 75 is threadedly matched with the threaded rod 74. The fourth motor drives the screw to rotate, thereby driving the slide relative to the threaded rod. To ensure the stable translation of the slide, a guide rail is arranged on the groove wall of the rectangular chute 76. The slide 75 slides with the guide rail. The guide rail can provide certain support for the slide and ensure the linear sliding of the slide, thereby ensuring the stable movement of the slide. The movement of the slide realizes the flexible adjustment of the position of the auxiliary slag removal mechanism 8.

[0028] like Figure 7 , 8 As shown, in this embodiment, as a preferred embodiment, the auxiliary slag removal mechanism 8 includes an assembly box seat 81, and a slag removal wheel 816 is provided at the bottom of the assembly box seat 81. One or more slag removal wheels can be provided as needed. In this embodiment, two slag removal wheels are used as an example. The slag removal wheel 816 is rotatably connected to the assembly box seat 81 through a bearing support 817, and the slag removal wheel 816 is transmission-connected to a third motor 818 provided on the assembly box seat 81, and the slag removal wheel 816 extends into the slag chute 57. When the slag chute is blocked, the auxiliary slag removal mechanism 8 moves to the blocking position under the action of the sliding mechanism, and then adjusts the distance between the upper cover and the slag chute so that the slag removal wheel can contact the slag stone, and then starts the third motor, which drives the slag removal wheel to rotate, and removes the blocked slag stone, thereby playing a role in smooth slag removal. When the slag chute is normally discharged, the slag removal wheel can also perform slag removal to improve the slag discharge efficiency of the slag chute.

[0029] like Fig. 9As shown, in this embodiment, as a further preference, the auxiliary slag removal mechanism 8 also includes a second operating arm 815 and a first operating arm 814 which are arranged in the assembly box seat 81 and are hinged to each other, one end of the second operating arm 815 is hinged to the first operating arm 814 through the second rotating rod 813, and the other end is provided with a slag removal bucket 810, the first operating arm 814 is rotatably connected in the assembly box seat 81 through the first rotating rod 812, and a connecting arm 85 is hinged on the outer wall of the assembly box seat 81 through a connecting shaft 86, the connecting arm 85 is connected to the second operating arm 815 through a connecting pin 87, and the connecting arm 85 is connected to a first driving mechanism arranged on the assembly box seat 81, and the first driving mechanism drives the connecting arm 85 to rotate around the connecting shaft 86 while the first operating arm 814 and the second operating arm 815 rotate accordingly. When the connecting arm drives the connecting pin to rotate, the first operating arm and the second operating arm are driven by the second rotating rod and the first rotating rod to change their positions, forming a bionic excavation action, so that the scraper bucket can scrape the blocked slag and stone, and actively slide the slag when the slag chute is difficult to slide the slag by itself, effectively avoiding the problem of slag chute blockage.

[0030] In addition, as a preferred embodiment, the first driving mechanism in this embodiment includes a first motor 82 arranged in the assembly box seat 81, a cam 83 is connected to the output shaft of the first motor 82, and the cam 83 is hinged to the third connecting rod 84 hinged on the connecting arm 85; a limiting groove 819 is provided on the side wall of the assembly box seat 81, and the limiting groove 819 can be an L-shaped positioning groove, and a slide groove 88 is provided on the connecting arm 85, and the connecting pin 87 passes through the limiting groove 819 and slides with the slide groove 88; the connecting arm can rotate around the connecting shaft, so that the connecting pin slides inside the L-shaped positioning groove, and the motion trajectory of the entire connecting arm is limited. The first motor drives the cam to drive the connecting rod to rotate, so that the connecting arm realizes reciprocating motion under the drive of the connecting rod, and through calculation, the reasonable arrangement of the positional relationship between the cam and the connecting rod can make the return of the connecting arm faster, which is convenient for improving work efficiency.

[0031] As a preferred trial method, the scraping bucket 810 described in this embodiment is symmetrically provided with support arms 811 on both sides, and the support arms 811 are connected to the second motor 89 provided at the front end of the second operating arm 815. The second motor drives the support arms to swing up and down to adjust the working posture of the scraping bucket. In this embodiment, the scraping bucket 810 is provided with a fourth connecting rod 820 hinged to the support arm 811 on both sides, and the fourth connecting rod 820 is hinged to the support arm 811 through a support rod 821 to form a triangular connecting rod mechanism, which ensures the strength and flexibility of the scraping bucket; makes the bionic excavation action of the scraping bucket more accurate and effective, and improves the scraping efficiency.

[0032] Embodiment 5, an inclined shaft TBM, comprises the slag sluice device for the inclined shaft TBM described in embodiment 2, the inclined shaft TBM slag sluice device is arranged in the shield body and located above the belt conveyor, the slag collecting ring 1 is located behind the cutter disc, and the slag receiving pipe 22 of the slag intercepting mechanism 2 corresponds to the cutter disc slag chute on the cutter disc. The slag excavated by the cutter disc enters the slag receiving pipe through the cutter disc slag chute, and enters the slag chute 57 through the slag receiving pipe, and then flows into the belt conveyor from the slag chute 57 to complete the slag discharge. When the tunneling machine is working, due to the need to adjust the excavation direction due to working conditions, the inclination angle of the slag chute will increase or decrease, resulting in a slow slag discharge process or excessive impact. The slag chute can be rotated along the rotating shaft by the extension and retraction of the hydraulic rod, so as to adaptively adjust the angle of the slag chute, thereby increasing or reducing the kinetic energy of the falling slag, and avoiding problems such as difficulty in self-sludging. When the slag chute is blocked, the slag intercepting mechanism 2 can intercept the slag entering the slag receiving pipe 22 to prevent the continuous accumulation of slag when the slag chute is blocked. At the same time, the accumulated slag can be actively removed by the auxiliary slag removing mechanism 8 to facilitate the smooth passage of the slag chute to facilitate the smooth removal of slag from the inclined shaft TBM.

[0033] Embodiment 6, an inclined shaft TBM, comprises the slag sluice device for the inclined shaft TBM described in embodiment 3, the inclined shaft TBM slag sluice device is arranged in the shield body and located above the belt conveyor, the slag collecting ring 1 is located behind the cutter disc, and the slag receiving pipe 22 of the slag intercepting mechanism 2 corresponds to the cutter disc slag chute on the cutter disc. The slag excavated by the cutter disc enters the slag receiving pipe through the cutter disc slag chute, and enters the slag chute 57 through the slag receiving pipe, and then flows into the belt conveyor from the slag chute 57 to complete the slag discharge. When the tunnel boring machine is working, due to the need to adjust the excavation direction due to working conditions, the inclination angle of the slag chute will increase or decrease, resulting in a slow slag discharge process or excessive impact. The slag chute can be rotated along the rotating shaft by the extension and retraction of the hydraulic rod, so as to adaptively adjust the angle of the slag chute, thereby increasing or reducing the kinetic energy of the falling slag, and avoiding problems such as difficulty in self-sludging. When the slag chute is blocked, the slag intercepting mechanism 2 can intercept the slag entering the slag receiving pipe 22 to prevent the continuous accumulation of slag when the slag chute is blocked. At the same time, the accumulated slag can be actively removed by the auxiliary slag removing mechanism 8 to facilitate the smooth passage of the slag chute to facilitate the smooth removal of slag from the inclined shaft TBM.

[0034] Embodiment 7, a TBM for inclined shaft, comprising the slag sluice device for TBM for inclined shaft described in embodiment 4, the slag sluice device for TBM for inclined shaft is arranged in the shield body and located above the belt conveyor, the slag collecting ring 1 is located behind the cutter disc, and the slag receiving pipe 22 of the slag intercepting mechanism 2 corresponds to the cutter disc slag chute on the cutter disc. When the tunnel boring machine is working, due to the need to adjust the excavation direction due to working conditions, the inclination angle of the slag chute will increase or decrease, resulting in a slow slag sluice process or excessive impact. The slag chute can be rotated along the rotating shaft by the extension and contraction of the hydraulic rod, so as to adaptively adjust the angle of the slag chute, thereby increasing or reducing the kinetic energy of the falling slag, and avoiding the problem that self-slag sluice is difficult to achieve. When the slag chute is blocked, the slag intercepting mechanism 2 can intercept the slag entering the slag receiving pipe 22 to prevent the continuous accumulation of slag when the slag chute is blocked. At the same time, the accumulated slag can be actively removed by the auxiliary slag removing mechanism 8, so that the slag can pass through the slag chute smoothly; so as to adapt to the smooth slag discharge of the TBM for inclined shaft.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A slag removal device for a TBM in an inclined shaft, comprising a slag collecting ring (1) and a base (4), characterized in that: The invention also comprises a slag chute (57), wherein the slag collecting ring (1) is provided with an assembly slot (11), a slag interception mechanism (2) is arranged in the assembly slot (11), a slag inlet end of the slag chute (57) is located in the assembly slot (11) and corresponds to the slag interception mechanism (2), the slag chute (57) is connected to the base (4) via an angle adjustment mechanism (5), and the angle adjustment mechanism (5) adjusts the inclination angle of the slag chute (57) relative to the base (4); the slag chute (57) is connected to an auxiliary slag removal mechanism (8) via a sliding mechanism (7), and the sliding mechanism (7) adjusts the position of the auxiliary slag removal mechanism (8) on the slag chute (57).

2. The slag removal device for inclined shaft TBM according to claim 1 is characterized in that: The angle adjustment mechanism (5) comprises N hydraulic rods (51) obliquely arranged on the base (4), N≥2, the hydraulic rods (51) being evenly distributed on the base (4) in a linear array, the top ends of the N hydraulic rods (51) being connected to a support plate seat (58), the front end of the support plate seat (58) being hinged in an assembly through groove (11), and the rear end of the support plate seat (58) being connected to the base (4) via a connecting rod assembly; The connecting rod assembly comprises a first connecting rod (53) and a second connecting rod (54) which are hinged to each other, the first connecting rod (53) being hinged to the base (4), and the second connecting rod (54) being hinged to the support plate seat (58); a rotating shaft (55) is provided in the assembly through groove (11), a connecting plate (56) is provided on the rotating shaft (55), and the connecting plate (56) is fixedly connected to the support plate seat (58).

3. The slag removal device for inclined shaft TBM according to claim 2 is characterized in that: A vibration mechanism (6) is provided between the bottom of the slag chute (57) and the support plate seat (58); the vibration mechanism (6) comprises a vibrator (61) provided at the bottom of the slag chute (57) and a telescopic guide rod (62) provided between the bottom of the slag chute (57) and the support plate seat (58), and a spring (63) is sleeved on the telescopic guide rod (62).

4. The slag removal device for inclined shaft TBM according to any one of claims 1 to 3, characterized in that: The slag interception mechanism (2) comprises a slag receiving pipe (22) fixed on the slag collecting ring (1), the slag receiving pipe (22) obliquely passing through the assembly slot (11) and corresponding to the slag chute (57); a wedge-shaped slag blocking block (23) is provided at the bottom of the slag receiving pipe (22), the wedge-shaped blocking block (23) is lifted and lowered relative to the slag receiving pipe (22) by a lifting assembly, and the opening of the slag receiving pipe (22) is adjusted; and an end cover (21) is also provided on the slag collecting ring (1), and the end cover (21) blocks the assembly slot (11).

5. The slag removal device for inclined shaft TBM according to claim 4 is characterized in that: The lifting assembly comprises a push rod (24) arranged at the bottom of the wedge-shaped stopper (23), two ends of the push rod (24) are connected to racks (26), the racks (26) are limited in a vertical guide rail (27), the vertical guide rail (27) is fixed in an assembly slot (11), and a gear (25) is fixed on a rotating shaft (55) installed in the assembly slot (11); the gear (25) is meshed with the rack (26) or the gear (25) is transmission-connected to the rack (26) via a transmission gear (28), and the transmission gear (28) is rotatably arranged in the assembly slot (11).

6. The slag removal device for inclined shaft TBM according to claim 1 or 5, characterized in that: The sliding mechanism (7) comprises an upper cover (71) arranged above the slag chute (57), a rectangular slide groove (76) being provided on the upper cover (71), a slide seat (75) being provided in the rectangular slide groove (76) and being able to slide relative to the upper cover (71), and an auxiliary slag removal mechanism (8) being provided on the slide seat (75); The upper cover (71) is connected to the wall of the slag chute (57) via a telescopic column (72); a threaded rod (74) is provided in the rectangular chute (76) along its length direction; the lower end of the threaded rod (74) is drivingly connected to a fourth motor (73) provided on the upper cover (71); the slide seat (75) is threadedly engaged with the threaded rod (74); a guide rail is provided on the wall of the rectangular chute (76); the slide seat (75) is slidably engaged with the guide rail.

7. The slag removal device for inclined shaft TBM according to claim 1, characterized in that: The auxiliary slag scraping mechanism (8) comprises an assembly box seat (81), a slag scraping wheel (816) is provided at the bottom of the assembly box seat (81), the slag scraping wheel (816) is rotatably connected to the assembly box seat (81) via a bearing support (817), and the slag scraping wheel (816) is transmission-connected to a third motor (818) provided on the assembly box seat (81), and the slag scraping wheel (816) extends into the slag chute (57).

8. The slag removal device for inclined shaft TBM according to claim 7 is characterized in that: The auxiliary slag removal mechanism (8) further comprises a second operating arm (815) and a first operating arm (814) which are arranged in the assembly box seat (81) and are hinged to each other. One end of the second operating arm (815) is hinged to the first operating arm (814) via a second rotating rod (813), and the other end is provided with a slag removal bucket (810). The first operating arm (814) is rotatably connected to the assembly box seat (81) via a first rotating rod (812). A connecting arm (85) is hinged to the outer wall of the assembly box seat (81) via a connecting shaft (86). The connecting arm (85) is connected to the second operating arm (815) via a connecting pin (87). The connecting arm (85) is connected to a first driving mechanism arranged on the assembly box seat (81). When the first driving mechanism drives the connecting arm (85) to rotate around the connecting shaft (86), the first operating arm (814) and the second operating arm (815) rotate accordingly.

9. The slag removal device for inclined shaft TBM according to claim 8, characterized in that: The first driving mechanism comprises a first motor (82) arranged in the assembly box seat (81); a cam (83) is connected to the output shaft of the first motor (82); the cam (83) is hinged to a third connecting rod (84) hinged to the connecting arm (85); a limiting groove (819) is provided on the side wall of the assembly box seat (81); a sliding groove (88) is provided on the connecting arm (85); a connecting pin (87) passes through the limiting groove (819) and is slidably matched with the sliding groove (88); Support arms (811) are symmetrically provided on both sides of the scraper bucket (810), the support arms (811) being connected to a second motor (89) arranged at the front end of a second operating arm (815), and fourth connecting rods (820) hinged to the support arms (811) are provided on both sides of the scraper bucket (810), the fourth connecting rod (820) being hinged to the support arms (811) via a support rod (821) to form a triangular connecting rod mechanism.

10. A TBM for inclined shaft, characterized by: The invention comprises a slag sluice device for a TBM in an inclined shaft as claimed in any one of claims 1 to 9, wherein the slag sluice device for a TBM in an inclined shaft is arranged in a shield body and located above a belt conveyor, wherein the slag collecting ring (1) is located behind the cutter disc, and the slag receiving pipe (22) of the slag intercepting mechanism (2) corresponds to the cutter disc slag chute on the cutter disc.

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