Slag removal device for TBM and TBM

Abstract

The utility model relates to the technical field of tunneling machine engineering machinery, in particular to a slag removing device for a TBM and the TBM. The slag removing device comprises an excavating device, a slag turning device and a conveying device. The slag overturning device is used for transferring slag stones excavated by the excavating device to the conveying device; the conveying device comprises a first conveying single piece and a second conveying single piece, and the first conveying single piece is used for transferring slag stones excavated by the excavating device to the second conveying single piece; the second conveying single piece is used for receiving the slag stone transferred by the slag overturning device and the first conveying single piece and conveying the slag stone out of the tunnel. According to the utility model, through the cooperation of the excavating device, the slag turning device and the conveying device, efficient cleaning of slag stones with different particle sizes at the bottom of the tunnel is realized; in addition, the slag overturning device and the first conveying single piece are used in cooperation, when the slag overturning device conveys the slag stone, the first conveying single piece can work synchronously, waiting caused by time needed by conveying of the slag overturning device is reduced, and the cleaning efficiency of the accumulated slag is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunneling machine engineering machinery, and particularly relates to a slag cleaning device for a TBM and a TBM. Background Art

[0002] During the construction process of a TBM, due to incomplete slag scraping by the cutter head and fragmentation of the surrounding rock in sections with a high surrounding rock grade, slag stones are likely to fall, resulting in slag stone accumulation at the bottom of the tunnel, hindering the laying of invert blocks at the front end of the equipment bridge and affecting the normal tunneling progress of the TBM. In the traditional slag cleaning scheme, the method of using manual labor and transport trolleys for slag cleaning is time-consuming, laborious and inefficient. Moreover, the working environment in the front section during the TBM tunneling operation is harsh, and the willingness and enthusiasm of the staff for slag cleaning work in the front section are low, which affects the normal construction progress.

[0003] Currently, a grab bucket and a conveying mechanism are mostly used in cooperation to complete the slag cleaning work. The slag cleaning device includes a guide rail fixed on the equipment bridge and extending forward and backward. A grab bucket is assembled on the guide rail. The grab bucket can grab the accumulated slag in the tunnel and drop the slag stones onto the conveying mechanism, so as to convey the accumulated slag to the outside of the tunnel. Although the above slag cleaning device can realize the function of automatically grabbing the accumulated slag, there are still many problems: the slag cleaning method is single, and there are problems with difficult transportation in the working conditions where the slag stones are relatively large; the grab bucket is limited by the shape and position of the guide rail, resulting in a limited grabbing range, and there are still some slag stones remaining after the grabbing operation, and the amount of manual auxiliary slag cleaning required is still relatively large.

[0004] In summary, there is an urgent need to provide a slag cleaning device for a TBM and a TBM to solve the problems existing in the prior art. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a slag cleaning device for a TBM and a TBM, and the specific technical solutions are as follows:

[0006] A slag cleaning device for a TBM includes an excavation device, a slag turning device and a conveying device; the slag turning device is arranged on the connecting bridge, and the slag turning device is used for transferring the slag stones dug by the excavation device onto the conveying device;

[0007] The conveying device is arranged on the connecting bridge. The conveying device includes a first conveying unit and a second conveying unit. The head end of the first conveying unit is correspondingly arranged with the excavation device, and the tail end of the first conveying unit is connected to the second conveying unit; the first conveying unit is used for transferring the slag stones dug by the excavation device onto the second conveying unit, and the second conveying unit is used for receiving the slag stones transferred by the slag turning device and the first conveying unit and transporting the slag stones to the outside of the tunnel.

[0008] Furthermore, the slag turning device includes a slag bucket device and a lifting device;

[0009] The lifting device includes a traveling track and a traveling device. The traveling track is arranged on the connecting bridge. The traveling device is connected to the slag bucket device, and the traveling device is used to drive the slag bucket device to move along the traveling track.

[0010] Furthermore, the slag bucket device includes a slag bucket and a slag chute. The slag bucket is connected to the traveling device. The slag chute is arranged on the traveling track, and the end of the slag chute corresponds to the second conveying unit.

[0011] Furthermore, a tipping mechanism is also provided on the traveling device. The tipping mechanism is connected to the slag bucket and is used to drive the slag bucket to tip.

[0012] Furthermore, the first conveying unit includes a material receiving section, a climbing section, and a material discharging section connected in sequence. The material receiving section is used to receive the slag and stones excavated by the excavating device. A plurality of connecting devices are provided on the material receiving section and / or the climbing section, and the first conveying unit is adjustably arranged on the connecting bridge through the connecting devices.

[0013] Furthermore, a slag chute device is connected to the material discharging section, and the slag chute device is located above the second conveying unit.

[0014] Furthermore, the connecting device includes a telescopic rod and a driving device. The driving device is connected to the telescopic rod and is used to drive the telescopic rod to extend and retract. The telescopic rod is connected between the material receiving section and / or the climbing section and the connecting bridge.

[0015] Furthermore, the included angle between the climbing section and the horizontal plane is 10°-20°.

[0016] Furthermore, the excavating device uses a micro excavator. The length of the micro excavator is less than 4.5 m, the width is less than 1.8 m, and the height is less than 2.8 m. A breaker is provided on the bucket of the micro excavator.

[0017] A TBM includes a main beam and a connecting bridge. The connecting bridge is connected to the main beam. It further includes the slag cleaning device as described above. The excavating device is located at the front end of the connecting bridge. The slag turning device is arranged on the side of the connecting bridge. The first conveying unit is arranged on one side of the connecting bridge away from the slag turning device, and the second conveying unit is arranged on the upper part of the connecting bridge.

[0018] Applying the technical solution of the present utility model has the following beneficial effects:

[0019] (1) The utility model provides a slag cleaning device for a TBM, which includes an excavation device, a slag turning device and a conveying device; the slag turning device is arranged on the connecting bridge, and the slag turning device is used to transfer the slag stones excavated by the excavation device onto the conveying device; the conveying device is arranged on the connecting bridge, and the conveying device includes a first conveying unit and a second conveying unit. The head end of the first conveying unit is correspondingly arranged with the excavation device, and the tail end of the first conveying unit is connected to the second conveying unit; the first conveying unit is used to transfer the slag stones excavated by the excavation device onto the second conveying unit, and the second conveying unit is used to receive the slag stones transferred by the slag turning device and the first conveying unit and transport the slag stones outside the tunnel. In the utility model, through the cooperation of the excavation device, the slag turning device and the conveying device (the first conveying unit and the second conveying unit), the problem of difficult transportation of large slag stones is solved, multiple conveying paths are provided for slag cleaning, and efficient cleaning of slag stones with different particle sizes at the bottom of the tunnel is realized; in addition, the slag turning device and the first conveying unit are used in combination. When the slag turning device conveys the slag stones, the first conveying unit can operate synchronously, reducing the waiting time caused by the time required for the slag turning device to convey, and improving the cleaning efficiency of the accumulated slag.

[0020] (2) In the utility model, a micro excavator is used to excavate the accumulated slag, which does not require manual cleaning by operators, has high operation efficiency; and its movement range is relatively free, solving the problem that the movement range of the existing device is limited by the guide rail, and expanding the cleaning range of the accumulated slag.

[0021] (3) In the utility model, the first conveying unit includes a material receiving section, a climbing section and a blanking section connected in sequence; the material receiving section is used to receive the slag stones excavated by the excavation device; a plurality of connecting devices are arranged on the material receiving section and / or the climbing section, and the first conveying unit is adjustably arranged on the connecting bridge through the connecting devices. By adjusting different connecting devices, the height and angle of the first conveying unit are adjusted to meet the conveying requirements of different working conditions.

[0022] (4) The utility model provides a TBM, which includes a main beam and a connecting bridge. The connecting bridge is connected to the main beam, and further includes a slag cleaning device. The excavation device is located at the front end of the connecting bridge, the slag turning device is arranged on the side of the connecting bridge, the first conveying unit is arranged on one side of the connecting bridge away from the slag turning device, and the second conveying unit is arranged on the upper part of the connecting bridge; the TBM provided by the utility model can realize efficient cleaning of the slag stones at the bottom of the tunnel by adopting the above-mentioned slag cleaning device.

[0023] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The following will refer to the drawings to make a further detailed description of the utility model. Description of the Drawings

[0024] The accompanying drawings, which form a part of this application, are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and shall not constitute an improper limitation to the present utility model. In the drawings:

[0025] Figure 1 is a schematic diagram of the overall structure of the slag cleaning device in an embodiment of the present utility model;

[0026] Figure 2 is Figure 1 a side view of;

[0027] Figure 3 is a schematic diagram of the structure of the slag turning device in an embodiment of the present utility model;

[0028] Figure 4 is a schematic diagram of the structure of the first single-piece conveyor in an embodiment of the present utility model;

[0029] Figure 5 is a schematic diagram of the excavation device in an embodiment of the present utility model;

[0030] Among them, 1. Excavation device, 1.1. Bucket, 1.2. Breaker, 2. Slag turning device, 2.1. Slag hopper device, 2.1.1. Slag hopper, 2.1.2. Slag chute, 2.2. Lifting device, 2.2.1. Traveling track, 2.2.2. Traveling device, 3. Conveyor device, 3.1. First single-piece conveyor, 3.1.1. Feeding section, 3.1.2. Climbing section, 3.1.3. Discharging section, 3.1.4. Slag chute device, 3.2. Second single-piece conveyor, 3.3. Connecting device, 4. Connecting bridge. Detailed implementation manners

[0031] The following will describe in detail the embodiments of the present utility model with reference to the accompanying drawings. However, the present utility model can be implemented in various different ways as defined and covered.

[0032] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0033] In addition, terms such as "first", "second", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more such features. In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more.

[0034] Embodiment

[0035] Refer to Figure 1 , this embodiment provides a slag cleaning device for a TBM, including an excavation device 1, a slag turning device 2, and a conveying device 3; the excavation device 1 is located at the front end of the connection bridge 4 and is used for digging and cleaning the slag stones at the bottom of the tunnel. In this embodiment, refer to Figure 1 and Figure 5 , the excavation device 1 is preferably a micro excavator. The length of the micro excavator is less than 4.5 m, the width is less than 1.8 m, and the height is less than 2.8 m. Its excavation distance is 4.9 m, and the discharge height is 2.9 m. Using a micro excavator can flexibly adjust the excavation operation range in a limited space, adjust the slag cleaning angle of the bucket 1.1 according to the position of the accumulated slag, and dig the accumulated slag at the bottom of the tunnel more cleanly and thoroughly, avoiding slag stone residue.

[0036] Preferably, a breaker 1.2 is provided at the end of the bucket 1.1. The breaker 1.2 is used to break larger slag stones, such as slag stones with a particle size exceeding 400 mm. Before digging the slag stones, the slag stones are broken first to avoid problems with difficult conveying during subsequent slag stone conveying.

[0037] Refer to Figures 1-4 , the slag turning device 2 is arranged on the connection bridge 4, and the slag turning device 2 is used to transfer the slag stones dug by the excavation device 1 onto the conveying device 3;

[0038] The conveying device 3 includes a first single conveying unit 3.1 and a second single conveying unit 3.2. The first single conveying unit 3.1 is arranged on the side of the connection bridge 4 away from the slag turning device 2, and the second single conveying unit 3.2 is arranged on the upper part of the connection bridge 4; the head end of the first single conveying unit 3.1 is correspondingly arranged with the excavation device 1, the tail end of the first single conveying unit 3.1 is connected to the second single conveying unit 3.2. The first single conveying unit 3.1 is used to transfer the slag stones dug by the excavation device 1 onto the second single conveying unit 3.2, and the second single conveying unit 3.2 is used to receive the slag stones transferred by the slag turning device 2 and the first single conveying unit 3.1 and transport the slag stones outside the tunnel.

[0039] In this embodiment, refer to Figure 1 and Figure 2, the slag turning device 2 is arranged on the left side of the connecting bridge 4 near the front end, and the slag turning device 2 includes a slag hopper device 2.1 and a lifting device 2.2;

[0040] See Figure 2 and Figure 3 , the slag hopper device 2.1 includes a slag hopper 2.1.1 and a slag chute 2.1.2. The slag hopper 2.1.1 is connected to the traveling device 2.2.2, and the slag chute 2.1.2 is arranged on the traveling track 2.2.1. The end of the slag chute 2.1.2 corresponds to the second conveying unit 3.2. The slag chute 2.1.2 guides the slag and stones poured out of the slag hopper 2.1.1 to ensure that the slag and stones fall onto the second conveying unit 3.2.

[0041] In this embodiment, the volume of the slag hopper 2.1.1 is 0.8 m 3 , the feeding height is 1.2 m, and the maximum allowable particle size is 400 mm.

[0042] See Figure 2 and Figure 3 , the lifting device 2.2 includes a traveling track 2.2.1 and a traveling device 2.2.2. The traveling track 2.2.1 is fixedly arranged on the connecting bridge 4 through bolts. The traveling device 2.2.2 is connected to the slag hopper 2.1.1, and the traveling device 2.2.2 is used to drive the slag hopper 2.1.1 to move along the traveling track 2.2.1.

[0043] In this embodiment, the traveling device 2.2.2 includes a rotating trolley and a driving device. The rotating trolley is provided with rollers, and the rollers roll and move along the traveling track 2.2.1; the driving device is arranged on the rotating trolley and is used to drive the rotating trolley to move along the traveling track 2.2.1.

[0044] Preferably, the driving device adopts a driving motor, a reducer and a gear. A rack matching the gear is arranged on the traveling track. The driving motor drives the gear to rotate through the reducer, and the gear meshes with the rack on the traveling track 2.2.1 to realize the movement of the rotating trolley along the traveling track 2.2.1.

[0045] In this embodiment, see Figure 2 and Figure 3, the traveling track 2.2.1 includes a straight section and a curved section connected in sequence. The straight section is the part located on the left side of the connecting bridge, and is used for the traveling device 2.2.2 to lift the slag bucket 2.1.1 from bottom to top to the connecting bridge 4; the curved section is the part located above the connecting bridge, and is used for the traveling device 2.2.2 to move the slag bucket 2.1.1 from left to right to a position corresponding to the inlet end of the slag chute 2.1.2 above the second conveying unit 3.2, so as to transfer the slag stones in the slag bucket 2.1.1 to the second conveying unit 3.2.

[0046] In this embodiment, a tipping mechanism is further provided on the traveling device 2.2.2. The tipping mechanism is connected to the slag bucket 2.1.1 and is used to drive the slag bucket 2.1.1 to tip. The tipping mechanism can be a tipping oil cylinder or a tipping motor, etc., which can realize the tipping of the slag bucket 2.1.1.

[0047] In this embodiment, see Figure 4 , the first conveying unit 3.1 includes a material receiving section 3.1.1, a climbing section 3.1.2 and a blanking section 3.1.3 connected in sequence; the material receiving section 3.1.1 is horizontally arranged and is used for receiving the slag stones excavated by the excavating device 1; a plurality of connecting devices 3.3 are provided on the material receiving section 3.1.1 and / or the climbing section 3.1.2, and the first conveying unit 3.1 is adjustably arranged on the connecting bridge 4 through the connecting devices 3.3.

[0048] Preferably, the connecting device 3.3 includes a telescopic rod and a driving device. The driving device is connected to the telescopic rod and is used to drive the telescopic rod to expand and contract; the telescopic rod is connected between the material receiving section 3.1.1 and / or the climbing section 3.1.2 and the connecting bridge 4.

[0049] In this embodiment, preferably, the driving device is preferably a driving oil cylinder, and the telescopic rod is preferably a structure of a guide post and a guide sleeve.

[0050] By adjusting the heights of different connecting devices 3.3, the height and angle of the first conveying unit 3.1 can be adjusted to meet the conveying requirements of various working conditions.

[0051] In this embodiment, the included angle between the climbing section 3.1.2 and the horizontal plane is 10°-20°, preferably 15°, to ensure the stable transportation of the slag stones and prevent the slag stones from slipping.

[0052] In this embodiment, both the first conveying unit 3.1 and the second conveying unit 3.2 adopt belt conveyors. The belt conveyor selected for the first conveying unit 3.1 has a belt width of 650 mm, a transportation inclination angle of 15°, and a feeding height of 2.2 m; the second conveying unit 3.2 is a continuous belt conveyor, which can not only be used to convey the slag stones at the bottom of the tunnel, but also be used to convey the crushed slag cut by the TBM cutter head.

[0053] In this embodiment, referring to Figure 4 , a slag chute device 3.1.4 is connected to the blanking section 3.1.3. The slag chute device 3.1.4 is located above the second single conveyor 3.2. The slag chute device 3.1.4 is preferably a slag chute with an inclined angle. By providing the slag chute device 3.1.4, slag and stones can smoothly fall from the first single conveyor 3.1 onto the second single conveyor 3.2, preventing the slag and stones from scattering.

[0054] The slag cleaning device provided in this embodiment, through the cooperation of the slag turning device 2, the first single conveyor 3.1, and the second single conveyor 3.2, provides different transportation routes for accumulated slag of different particle sizes at the bottom of the tunnel. Specifically, for slag and stones with a particle size less than 200 mm, the slag and stones can be transported through the first single conveyor 3.1. After the micro-excavator digs the slag and stones at the bottom of the tunnel and places them on the receiving section 3.1.1, they are then transported through the climbing section 3.1.2 to the blanking section 3.1.3, and finally the slag chute device 3.1.4 transports the slag and stones onto the second single conveyor 3.2, and the second single conveyor 3.2 transports the slag and stones outside the tunnel; for slag and stones with a particle size of 200 - 400 mm, the micro-excavator digs the slag and stones and places them on the slag hopper 2.1.1. The slag hopper 2.1.1 is transported to above the connecting bridge along the traveling track 2.2.1 by the rotating trolley, and then transported to the second single conveyor 3.2 through the slag chute 2.1.2, and the second single conveyor 3.2 transports the slag and stones outside the tunnel; for slag and stones with a particle size greater than 400 mm, the slag and stones can be broken by the breaker hammer carried by the micro-excavator and then transported. Through the cooperation of the micro-excavator with the slag turning device 2, the first single conveyor 3.1, and the second single conveyor 3.2, multiple transportation routes are provided for the transportation of slag and stones, solving the problem of difficult transportation of large slag and stones, and realizing the efficient cleaning operation of accumulated slag of different particle sizes at the bottom of the tunnel.

[0055] In addition, in the present utility model, the slag turning device 2 and the first single conveyor 3.1 are used in combination. When the slag turning device 2 transports slag and stones, the slag and stones can be transported through the first single conveyor 3.1 at the same time, avoiding waiting due to the time required for the slag turning device 2 to return after completing the transportation operation, thereby improving the slag cleaning efficiency.

[0056] The present utility model uses mechanical means to dig and clean the accumulated slag at the bottom of the tunnel, eliminating the need for manual operation to complete the slag cleaning work, significantly reducing the labor intensity of workers while improving the slag cleaning efficiency and work quality.

[0057] This embodiment also provides a TBM, including a main beam and a connecting bridge 4. The connecting bridge 4 is connected to the main beam, and further includes the slag cleaning device as described above. By using the slag cleaning device as described above, efficient cleaning of the slag and stones at the bottom of the tunnel can be achieved.

[0058] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A slag cleaning device for a TBM, characterized in that, It includes an excavation device (1), a slag turning device (2) and a conveying device (3); the slag turning device (2) is arranged on a connecting bridge (4), and the slag turning device (2) is used to transfer the slag and stones excavated by the excavation device (1) onto the conveying device (3); The conveying device (3) is arranged on the connecting bridge (4), the conveying device (3) includes a first conveying unit (3.1) and a second conveying unit (3.2), the head end of the first conveying unit (3.1) is correspondingly arranged with the excavation device (1), and the tail end of the first conveying unit (3.1) is connected to the second conveying unit (3.2); the first conveying unit (3.1) is used to transfer the slag and stones excavated by the excavation device (1) onto the second conveying unit (3.2), and the second conveying unit (3.2) is used to receive the slag and stones transferred by the slag turning device (2) and the first conveying unit (3.1) and transport the slag and stones outside the tunnel.

2. The slag cleaning device for TBM according to claim 1, characterized in that, The slag turning device (2) includes a slag hopper device (2.1) and a lifting device (2.2); The lifting device (2.2) includes a traveling track (2.2.1) and a traveling device (2.2.2), the traveling track (2.2.1) is arranged on the connecting bridge (4), the traveling device (2.2.2) is connected to the slag hopper device (2.1), and the traveling device (2.2.2) is used to drive the slag hopper device (2.1) to move along the traveling track (2.2.1).

3. The slag cleaning device for a TBM according to claim 2, characterized in that, The slag hopper device (2.1) includes a slag hopper (2.1.1) and a slag chute (2.1.2), the slag hopper (2.1.1) is connected to the traveling device (2.2.2), the slag chute (2.1.2) is arranged on the traveling track (2.2.1), and the end of the slag chute (2.1.2) corresponds to the second conveying unit (3.2).

4. The slag cleaning device for TBM according to claim 3, wherein, A turning mechanism is further arranged on the traveling device (2.2.2), and the turning mechanism is connected to the slag hopper (2.1.1) and is used to drive the slag hopper (2.1.1) to turn.

5. A slag cleaning device for a TBM according to claim 1, characterized in that, The first conveying unit (3.1) includes a material receiving section (3.1.1), a climbing section (3.1.2) and a blanking section (3.1.3) which are connected in sequence; the material receiving section (3.1.1) is used to receive the slag and stones excavated by the excavation device (1); a plurality of connecting devices (3.3) are arranged on the material receiving section (3.1.1) and / or the climbing section (3.1.2), and the first conveying unit (3.1) is adjustably arranged on the connecting bridge (4) through the connecting devices (3.3).

6. The slag cleaning device for a TBM according to claim 5, characterized in that, The blanking section (3.1.3) is connected with a slag chute device (3.1.4), and the slag chute device (3.1.4) is located above the second conveying unit (3.2).

7. A slag cleaning device for a TBM according to claim 5, characterized in that, The connecting device (3.3) includes a telescopic rod and a driving device, the driving device is connected to the telescopic rod and is used to drive the telescopic rod to extend and retract; The telescopic rod is connected between the material receiving section (3.1.1) and / or the climbing section (3.1.2) and the connecting bridge (4).

8. The slag cleaning device for a TBM according to claim 7, characterized in that, The included angle between the climbing section (3.1.2) and the horizontal plane is 10° - 20°.

9. A slag cleaning device for a TBM according to any one of claims 1-8, characterized in that, The excavation device (1) uses a mini excavator, the length of the mini excavator is less than 4.5 m, the width is less than 1.8 m, and the height is less than 2.8 m; a breaker (1.2) is provided on the bucket (1.1) of the mini excavator.

10. A TBM, comprising a main beam and a connecting bridge (4), the connecting bridge (4) being connected to the main beam, characterized in that, It further includes the slag cleaning device according to any one of claims 1-9, the excavation device (1) is located at the front end of the connecting bridge (4), the slag turning device (2) is arranged on the side of the connecting bridge (4), and the first single conveyor (3.1) is arranged on one side of the connecting bridge (4) away from the slag turning device (2), and the second single conveyor (3.2) is arranged on the upper part of the connecting bridge (4).

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