CN220621865U - Transport mechanism for underground tunnel - Google Patents

Abstract

The utility model discloses a transport mechanism of a subsurface tunnel, which comprises a track, a vehicle body and a transport carrier, wherein the track is arranged at the bottom of a pilot tunnel and paved along the depth direction of the pilot tunnel excavation; the vehicle body comprises a vehicle framework and a wheel set, wherein the wheel set is arranged at the bottom of the vehicle framework and is connected with the track, and an installation platform is formed at the top of the vehicle framework; the transportation carrier sets up the holding box on mounting platform and sets up the retaining member on holding the box, and the retaining member is used for locking to hold the box so that hold the box and be convenient for bear the dregs, opens the retaining member so that hold the box and expand the plummer that forms and be used for placing the building materials. The holding box can carry out the change of service condition as required, when needs transportation dregs, will hold the box concatenation through the retaining member, utilize the holding chamber that holds the box to bear transportation dregs, when needs transportation building materials, then make to hold the box and expand through opening the retaining member, form the plummer that is convenient for place the building materials. Thereby realizing convenient transportation of slag soil and building materials.

Description

Transport mechanism for underground tunnel

Technical Field

The utility model relates to the technical field of construction tools for underground tunnel, in particular to a transport mechanism for an underground tunnel.

Background

The eighteen-word guideline of the undercut tunnel is pipe advanced, tight grouting, short excavation, strong supporting, quick closing and duty measurement, wherein the quick closing tells us to quickly perform the construction of the vertical frame spray anchor, and the purpose is to reduce the exposure time of surrounding rock and prevent the surrounding rock from being unstable and collapsing. The instability and collapse of surrounding rock not only increases construction difficulty, but also can influence engineering quality, delay construction period, economic loss and even possibly cause casualties. In order to ensure the stability of surrounding rocks around a tunnel, primary support and closure of the surrounding rocks must be completed in time.

The existing underground tunnel usually adopts a CRD construction method, which is a fully-called cross intermediate wall method, is a tunnel construction method suitable for weak strata, has a good effect on controlling the subsidence of the ground surface, and is generally mainly used in urban underground railway construction. The core soil is reserved by adopting a CRD method, and the large-section tunnel is divided into 4 relatively independent small chambers for subsection construction. The CRD construction method follows the construction principles of small sections, short steps, short circulation, quick sealing, duty measurement and strong support, and performs initial protection in time after the CRD construction method is divided into rings from top to bottom and is divided into blocks and supported along with digging. When carrying out initial construction, need excavate first to going up the pilot tunnel, the in-process of excavation needs to carry out the transportation of dregs through the travelling bogie, still need transport the material such as I-steel that is used for supporting simultaneously, and when transporting dregs, the travelling bogie usually needs to take the sediment fill, but the travelling bogie that has the sediment fill is inconvenient to transport to building materials such as I-steel of longer size or reinforcing bar, so need change the travelling bogie that does not take the sediment fill and transport building materials such as I-steel or reinforcing bar, but only lay a transportation track in usually a pilot tunnel, need replace the travelling bogie when will make the transportation of sediment and building materials in turn, thereby influence the efficiency that the transportation of dregs clearance and building materials was put up, and then influence the efficiency of construction of undercut tunnel.

Disclosure of Invention

The utility model provides a transport mechanism for a subsurface tunnel, which aims to solve the technical problem of how to transport slag soil and building materials conveniently.

The utility model provides a transport mechanism of a subsurface tunnel, which comprises a track, a vehicle body and a transport carrier, wherein the track is arranged at the bottom of a pilot tunnel and paved along the depth direction of the pilot tunnel excavation; the vehicle body comprises a vehicle framework and a wheel set, wherein the wheel set is arranged at the bottom of the vehicle framework and is connected with the track, and an installation platform is formed at the top of the vehicle framework; the transportation carrier sets up hold the box on the mounting platform and set up hold the retaining member on the box, the retaining member is used for locking hold the box so that hold the box and be convenient for bear the dregs, through opening the retaining member so that hold the box expansion and form the plummer that is used for placing the building materials.

Further, the accommodating box comprises a bottom plate, a first side plate, a second side plate, a third side plate and a fourth side plate, wherein the bottom plate is arranged on the mounting platform, the first side plate is hinged with a first end in the length direction of the bottom plate, the second side plate is hinged with a second end in the length direction of the bottom plate, the third side plate is hinged with the first side plate, the fourth side plate is hinged with the second side plate, and the locking piece comprises a first locking part and a second locking part, the first locking part is arranged on the third side plate and used for being connected with the second side plate, and the second locking part is arranged on the fourth side plate and used for being connected with the first side plate; the third side plate is rotated to be overlapped with the first side plate, the fourth side plate is rotated to be attached to the second side plate, and the first side plate and the second side plate are both parallel to the bottom plate by rotating the first side plate and the second side plate, so that the third side plate, the fourth side plate and the bottom plate are positioned on the same plane to form the bearing platform for conveniently transporting building materials; the first side plate, the second side plate, the third side plate and the fourth side plate are rotated, so that the third side plate is spliced with the second side plate through the first locking part, the fourth side plate is spliced with the first side plate through the second locking part, the third side plate and the fourth side plate are oppositely arranged, and the bottom plate, the first side plate, the second side plate, the third side plate and the fourth side plate are spliced into the accommodating box for carrying dregs.

Further, the first locking part comprises a first sliding block which is slidably connected to the side wall of the third side plate and a first clamping column which is fixedly connected to the sliding block, and the second side plate is provided with a first clamping groove matched with the first clamping column.

Further, the second locking part comprises a second sliding block which is slidably connected to the side wall of the fourth side plate and a second clamping column which is fixedly connected to the sliding block, and the first side plate is provided with a second clamping groove matched with the second clamping column.

Further, a first fixing piece is detachably connected to the joint of the first side plate and the third side plate, the first fixing piece comprises a first clamping plate and a second clamping plate hinged to the first clamping plate, the first clamping plate is used for being clamped with the first side plate, and the second clamping plate is used for being clamped with the third side plate; the second fixing piece comprises a third clamping plate and a fourth clamping plate hinged with the third clamping plate, the third clamping plate is used for being clamped with the second side plate, and the fourth clamping plate is used for being clamped with the fourth side plate.

Further, lifting lugs which are convenient to sleeve fastening ropes are arranged on two sides of the bottom width direction of the first side plate, two sides of the bottom width direction of the bottom plate and two sides of the bottom width direction of the second side plate.

Further, a driving piece is arranged on the vehicle framework and used for driving the wheel set to work so that the vehicle body moves along the track.

Further, an anti-collision pier is arranged at the initial section of the track, and an anti-collision block matched with the anti-collision pier is arranged on the vehicle body.

Further, a fixed baffle is arranged at the bottom of the vehicle body, and the fixed baffle is positioned at the outer side of the wheel set and used for blocking falling dregs.

Further, the fixed baffle is detachably connected with a cleaning block, and the cleaning block is attached to the upper surface of the rail to clean the dregs on the rail.

The utility model has the following beneficial effects:

in the transportation mechanism of the underground excavation tunnel, the track is paved along the tunneling direction of the pilot tunnel, so that the vehicle can conveniently reach the tunneling point, slag soil generated at the tunneling point is loaded and transferred through the transportation carrier, subsequent excavation is facilitated, meanwhile, building materials can be transported through the transportation carrier, the pilot tunnel excavated is supported by the building materials, and the stability of the pilot tunnel is improved.

To sum up, the change of service condition can be carried out as required to the holding box in the transportation carrier, when needs transportation dregs, will hold the box concatenation through the retaining member, utilizes the holding chamber that holds the box to bear transportation dregs, when needs transportation building materials, then makes to hold the box expansion through opening the retaining member, forms the plummer of being convenient for place the building materials. And further, the convenience of transporting the dregs and the convenience of transporting the building materials can be realized under the condition that the transporting vehicle body is not replaced.

In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The present utility model will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic structural view of a transport mechanism of a undercut tunnel in accordance with a preferred embodiment of the present utility model;

fig. 2 is a schematic structural view of the receiving box in a fully unfolded state according to the preferred embodiment of the present utility model;

fig. 3 is a schematic structural view of a splicing state of the receiving box according to the preferred embodiment of the present utility model.

Legend description:

100. a track; 101. an anti-collision pier;

200. a vehicle body; 201. a vehicle frame; 202. a mounting platform; 203. an anti-collision block; 204. a fixed baffle; 205. a cleaning block; 206. a wheel set; 207. a driving member;

300. a housing case; 301. a first side plate; 302. a second side plate; 303. a third side plate; 304. a fourth side plate; 305. a bottom plate; 306. a first clamping groove; 307. a second clamping groove;

400. a first locking part; 401. a first slider; 402. a first clamping column;

500. a second locking part; 501. a second slider; 502. the second clamping column;

600. a first fixing member; 601. a first clamping plate; 602. a second clamping plate; 603. a second fixing member; 604. a third clamping plate; 605. a fourth clamping plate;

700. lifting lugs.

Detailed Description

Embodiments of the utility model are described in detail below with reference to the attached drawing figures, but the utility model can be practiced in a number of different ways, as defined and covered below.

As shown in fig. 1, a transport mechanism for a undercut tunnel according to this embodiment includes a track 100, a vehicle body 200, and a transport carrier, where the track 100 is disposed at the bottom of the pilot tunnel and laid along the depth direction of the pilot tunnel excavation; the vehicle body 200 comprises a vehicle framework 201 and a wheel set 206, wherein the wheel set 206 is arranged at the bottom of the vehicle framework 201 and is connected with the track 100, and a mounting platform 202 is formed at the top of the vehicle framework 201; the transportation carrier is arranged on the installation platform 202 and comprises a containing box 300 and a locking piece, wherein the locking piece is arranged on the containing box 300 and used for locking the containing box 300 so that the containing box 300 can bear dregs conveniently, and the containing box 300 is unfolded to form a bearing table for placing building materials by opening the locking piece.

In this embodiment, the pilot tunnel is divided into an upper pilot tunnel and a lower pilot tunnel, and when the pilot tunnel is an upper pilot tunnel, a supporting column is required to be arranged below the bearing ground of the pilot tunnel to serve as a platform support. The guide hole is internally provided with a guardrail, the guardrail is positioned at the periphery of the track 100 so as to protect the car body 200, the car rail can be welded continuously along with the excavation of the guide hole so as to prolong the length of the track 100, the car skeleton 201 is formed by welding I-steel and angle steel, a flat steel plate is welded on the upper surface of the car skeleton 201 so as to form a mounting platform 202, and a wheel set 206 arranged at the bottom of the car skeleton 201 comprises four wheels which are erected on the track 100 and are rotationally connected to the car skeleton 201, and the wheels are driven to rotate by a driving motor so as to drive the car body 200 to move along the track 100.

Specifically, track 100 lays along the tunneling direction of pilot tunnel, make things convenient for automobile body 200 to can reach the entry point, and load the dregs that produces of tunnelling department through the transportation carrier and shift, in order to make things convenient for subsequent excavation, simultaneously can also transport the building materials through the transportation carrier, so that support the pilot tunnel of excavation through the building materials, lead to the stability of pilot tunnel, because the holding box 300 in this transportation carrier can change into two kinds of states under the effect of retaining member, wherein, when locking through the retaining member, holding box 300 has the holding chamber and can bear transportation dregs, when opening the retaining member, can expand holding box 300 and form the plummer that is used for placing the building materials, the building materials can be binded on the plummer through the rope after placing the plummer.

To sum up, the accommodation box 300 in the transportation carrier can carry out the change of service condition as required, when needs transportation dregs, will hold the box 300 concatenation through the retaining member, utilize the accommodation chamber of holding box 300 to bear transportation dregs, when needs transportation building materials, then make to hold the box 300 to expand through opening the retaining member, form the plummer that is convenient for place the building materials. And further, the convenience of transporting the dregs and the convenience of transporting the building materials can be realized under the condition that the transporting vehicle body 200 is not replaced.

Further, the accommodating box 300 comprises a bottom plate 305 mounted on the mounting platform 202, a first side plate 301 hinged with a first end in the length direction of the bottom plate 305, a second side plate 302 hinged with a second end in the length direction of the bottom plate 305, a third side plate 303 hinged with the first side plate 301 and a fourth side plate 304 hinged with the second side plate 302, and the locking member comprises a first locking part 400 arranged on the third side plate 303 and used for being connected with the second side plate 302, and a second locking part 500 arranged on the fourth side plate 304 and used for being connected with the first side plate 301; rotating the third side plate 303 to overlap the first side plate 301 and rotating the fourth side plate 304 to be attached to the second side plate 302, and rotating the first side plate 301 and the second side plate 302 to make the first side plate 301 and the second side plate 302 parallel to the bottom plate 305, so that the third side plate 303, the fourth side plate 304 and the bottom plate 305 are positioned on the same plane to form the bearing platform for facilitating transportation of building materials; the first side plate 301, the second side plate 302, the third side plate 303 and the fourth side plate 304 are rotated, so that the third side plate 303 is spliced with the second side plate 302 by the first locking part 400, the fourth side plate 304 is spliced with the first side plate 301 by the second locking part 500, and the bottom plate 305, the first side plate 301, the second side plate 302, the third side plate 303 and the fourth side plate 304 are spliced into the accommodating box 300 for carrying the dregs.

In this embodiment, the accommodating box 300 is made of steel, where the bottom plate 305 is detachably connected to the mounting platform 202, and specifically, bolts may be used to fix the bottom plate 305 to the mounting platform 202. The bottom plate 305 may also be secured to the mounting platform 202 by welding. The first side plate 301 is hinged to the bottom plate 305 through a hinge, the first side plate 301 abuts against the mounting platform 202 when being unfolded so as to support the unfolded first side plate 301 through the mounting platform 202, the corresponding second side plate 302 is arranged corresponding to the first side plate 301, and the second side plate 302 abuts against the mounting platform 202 when being unfolded so as to support the unfolded second side plate 302 through the mounting platform 202. The third side plate 303 is hinged with the side edge of the first side plate 301 through a hinge, the fourth side plate 304 is hinged with the side wall of the second side plate 302 through a hinge, the third side plate 303 and the fourth side plate 304 are oppositely arranged, the thickness of the bottom plate 305 is the sum of the thicknesses of the first side plate 301 and the third side plate 303 after being overlapped, and meanwhile, the thickness of the bottom plate 305 is also the sum of the thicknesses of the second side plate 302 and the fourth side plate 304 after being overlapped.

When the accommodating box 300 is unfolded, the first locking part 400 and the second locking part 500 are opened, the third side plate 303 is rotated to be overlapped with the first side plate 301, the fourth side plate 304 is rotated to be attached to the second side plate 302, the first side plate 301 and the second side plate 302 are rotated so that the first side plate 301 and the second side plate 302 are parallel to the bottom plate 305, and the third side plate 303, the fourth side plate 304 and the bottom plate 305 are positioned on the same plane so as to form a bearing table for conveniently transporting building materials.

In assembling the accommodating case 300, the bottom plate 305, the first side plate 301, the second side plate 302, the third side plate 303, and the fourth side plate 304 are spliced into the accommodating case 300 for carrying the muck by rotating the first side plate 301, the second side plate 302, the third side plate 303, and the fourth side plate 304 such that the third side plate 303 is spliced with the second side plate 302 by the first locking part 400, and the fourth side plate 304 is spliced with the first side plate 301 by the second locking part 500.

Further, the first locking portion 400 includes a first slider 401 slidably connected to a side wall of the third side plate 303 and a first clamping post 402 fixedly connected to the slider, and the second side plate 302 is provided with a first clamping groove 306 matched with the first clamping post 402.

In this embodiment, the first locking portion 400 includes a first slider 401 and a first clamping post 402, where the first slider 401 is disposed on the non-hinge side of the third side plate 303 and slides along the thickness direction of the third side plate 303, and a clamping groove matched with the first clamping post 402 is formed on the second side plate 302. In particular, the third side plate 303 is rotated to be close to the second side plate 302, and then the first slider 401 is pushed to move, so that the first clamping post 402 extends into the first clamping groove 306, and the third side plate 303 is fixed relative to the second side plate 302.

Further, the second locking portion 500 includes a second slider 501 slidably connected to a side wall of the fourth side plate 304 and a second clamping post 502 fixedly connected to the slider, and the first side plate 301 is provided with a second clamping groove 307 matched with the second clamping post 502.

In this embodiment, the second locking portion 500 includes a second slider 501 and a second clamping post 502, where the first slider 401 is disposed on the non-hinge side of the fourth side plate 304 and slides along the thickness direction of the fourth side plate 304, and a clamping groove matched with the first clamping post 402 is formed on the first side plate 301. In particular, the fourth side plate 304 is turned to approach the first side plate 301, and then the second slider 501 is pushed to move, so that the second clamping post 502 extends into the second clamping groove 307, and the fourth side plate 304 is fixed relative to the first side plate 301.

Further, a first fixing piece 600 is detachably connected to the connection part between the first side plate 301 and the third side plate 303, the first fixing piece 600 includes a first clamping plate 601 and a second clamping plate 602 hinged to the first clamping plate 601, the first clamping plate 601 is used for being clamped with the first side plate 301, and the second clamping plate 602 is used for being clamped with the third side plate 303; the second fixing piece 603 is detachably connected to the connection between the second side plate 302 and the fourth side plate 304, the second fixing piece 603 includes a third clamping plate 604 and a fourth clamping plate 605 hinged to the third clamping plate 604, the third clamping plate 604 is used for being clamped with the second side plate 302, and the fourth clamping plate 605 is used for being clamped with the fourth side plate 304.

In this embodiment, the first fixing member 600 and the second fixing member 603 are used for improving the stability of the accommodating box 300 after being spliced, specifically, the first clamping plate 601 and the second clamping plate 602 of the first fixing member 600 are combined for supporting the first side plate 301 and the third side plate 303, and the second clamping plate 602 of the second fixing member 603 are combined for supporting the second side plate 302 and the fourth side plate 304, so as to prevent the slag from propping up the accommodating box 300 when loading the slag.

Further, lifting lugs 700 for conveniently sleeving fastening ropes are arranged on two sides of the bottom width direction of the first side plate 301, the bottom plate 305 and the second side plate 302. In this embodiment, the lifting lug 700 is provided to facilitate the installation of a fastening rope, and the building material placed on the carrying table is fastened by the fastening rope, so as to prevent the building material from falling off during transportation.

Further, a driving member 207 is disposed on the frame 201, and the driving member 207 is configured to drive the wheel set 206 to operate so as to move the vehicle body 200 along the track 100. In this embodiment, the driving member 207 is a driving motor for driving the vehicle body 200 of the wheel set 206 to move.

Further, the initial section of the track 100 is provided with an anti-collision pier 101, and the vehicle body 200 is provided with an anti-collision block 203 matched with the anti-collision pier 101. In the present embodiment, the provision of the crashproof piers 101 serves to prevent the vehicle body 200 from moving out of the track 100, and the provision of the crashproof blocks 203 prevents the vehicle body 200 from being damaged when the vehicle body 200 collides with the crashproof piers 101.

Further, a fixed baffle 204 is disposed at the bottom of the frame 201, and the fixed baffle 204 is located at the outer side of the wheel set 206 for blocking the falling dregs. In the present embodiment, the fixed barrier 204 is provided at the bottom of the vehicle frame 201 and outside the wheels, preventing the falling slag from being caught in the wheels, affecting the movement of the vehicle body 200.

Further, the fixed baffle 204 is detachably connected with a cleaning block 205, and the cleaning block 205 is attached to the upper surface of the track 100 to clean the residue soil on the track 100. In this embodiment, the cleaning block 205 is used to push the slag on the upper surface of the rail 100 down the rail 100 to clean the slag on the surface of the rail 100 so that the wheels are not affected by the slag when moving on the rail 100.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a transport mechanism in undercut tunnel sets up the pilot tunnel in the undercut tunnel, its characterized in that includes:

the track (100) is arranged at the bottom of the pilot tunnel and paved along the depth direction of the pilot tunnel excavation;

the vehicle body (200), the vehicle body (200) comprises a vehicle framework (201) and a wheel set (206), the wheel set (206) is arranged at the bottom of the vehicle framework (201) and is connected with the track (100), and a mounting platform (202) is formed at the top of the vehicle framework (201);

the transportation carrier, the transportation carrier sets up hold box (300) and setting up on mounting platform (202) hold the retaining member on box (300), the retaining member is used for locking hold box (300) so that hold box (300) be convenient for bear the dregs, through opening the retaining member so that hold box (300) expansion formation is used for placing the plummer of building materials.

2. The transport mechanism of a undercut tunnel according to claim 1, wherein the housing box (300) comprises a bottom plate (305) mounted on the mounting platform (202), a first side plate (301) hinged to a first end of the bottom plate (305) in a length direction, a second side plate (302) hinged to a second end of the bottom plate (305) in a length direction, a third side plate (303) hinged to the first side plate (301), and a fourth side plate (304) hinged to the second side plate (302), the locking member comprising a first locking portion (400) provided on the third side plate (303) for connection with the second side plate (302) and a second locking portion (500) provided on the fourth side plate (304) for connection with the first side plate (301); -by rotating the third side plate (303) to overlap the first side plate (301) and the fourth side plate (304) to overlap the second side plate (302), by rotating the first side plate (301), the second side plate (302) such that both the first side plate (301) and the second side plate (302) are parallel to the bottom plate (305), thereby bringing the third side plate (303), the fourth side plate (304) and the bottom plate (305) in the same plane to form the carrying platform for convenient transportation of building materials; by rotating the first side plate (301), the second side plate (302), the third side plate (303) and the fourth side plate (304), the third side plate (303) is spliced with the second side plate (302) through the first locking part (400) and the fourth side plate (304) is spliced with the first side plate (301) through the second locking part (500), so that the third side plate (303) and the fourth side plate (304) are oppositely arranged, and the bottom plate (305), the first side plate (301), the second side plate (302), the third side plate (303) and the fourth side plate (304) are spliced into the accommodating box (300) for carrying dregs.

3. The transport mechanism of a undercut tunnel according to claim 2, wherein the first locking portion (400) includes a first slider (401) slidably connected to a side wall of the third side plate (303) and a first clamping post (402) fixedly connected to the slider, and the second side plate (302) is provided with a first clamping groove (306) matched with the first clamping post (402).

4. The transport mechanism of a undercut tunnel according to claim 2, wherein the second locking portion (500) includes a second slider (501) slidably connected to a side wall of the fourth side plate (304) and a second clamping post (502) fixedly connected to the slider, and the first side plate (301) is provided with a second clamping groove (307) that is matched with the second clamping post (502).

5. The transport mechanism of the undercut tunnel according to claim 2, wherein a first fixing member (600) is detachably connected to a connection portion between the first side plate (301) and the third side plate (303), the first fixing member (600) includes a first clamping plate (601) and a second clamping plate (602) hinged to the first clamping plate (601), the first clamping plate (601) is used for being clamped with the first side plate (301), and the second clamping plate (602) is used for being clamped with the third side plate (303); the second fixing piece (603) is detachably connected to the joint of the second side plate (302) and the fourth side plate (304), the second fixing piece (603) comprises a third clamping plate (604) and a fourth clamping plate (605) hinged to the third clamping plate (604), the third clamping plate (604) is used for being clamped with the second side plate (302), and the fourth clamping plate (605) is used for being clamped with the fourth side plate (304).

6. The transport mechanism of the undercut tunnel according to claim 2, wherein both sides in the bottom width direction of the first side plate (301), both sides in the bottom width direction of the bottom plate (305), and both sides in the bottom width direction of the second side plate (302) are provided with lifting lugs (700) for facilitating the sleeving of fastening ropes.

7. The transport mechanism of the undercut tunnel according to claim 6, wherein a driving member (207) is provided on the vehicle frame (201), and the driving member (207) is configured to drive the wheel set (206) to operate so as to move the vehicle body (200) along the track (100).

8. Transport mechanism for a undercut tunnel according to any of claims 1-7, characterized in that the starting section of the track (100) is provided with an anti-collision pier (101), and that the car skeleton (201) is provided with anti-collision blocks (203) cooperating with the anti-collision pier (101).

9. The transport mechanism of a undercut tunnel according to any one of claims 1-7, characterized in that the bottom of the skeleton (201) is provided with a fixed baffle (204), which fixed baffle (204) is located outside the wheel set (206) for blocking the falling slag.

10. The transport mechanism of the undercut tunnel according to claim 9, wherein the fixed baffle (204) is detachably connected with a cleaning block (205), and the cleaning block (205) is attached to the upper surface of the track (100) to clean the residue on the track (100).