CN116498340A - Rail-mounted slag bucket side-discharging system for small-diameter tunnel and side-discharging method thereof - Google Patents

Abstract

The invention discloses a rail-mounted slag bucket side discharging system for a small-diameter tunnel, and belongs to the field of tunnel tunneling construction. The device comprises a rail vehicle arranged on a track, a rotatable slag hopper arranged on the rail vehicle, a switch door arranged on the slag hopper, and a side pushing mechanism arranged in a slag discharging hole, wherein a slag hopper overturning assembly used for pushing the slag hopper to overturn on the rail vehicle is connected between the side pushing mechanism and the slag hopper, a door lock mechanism used for unlocking or locking the switch door when the slag hopper is in an overturning state is arranged on the rail vehicle, and a vehicle body locking assembly used for preventing the rail vehicle from rollover due to the overturning of the slag hopper is further arranged in the slag discharging hole. The method has the advantages of small excavation amount, small occupied area and low construction cost, and improves the construction efficiency of the heading machine (TBM).

Description

Rail-mounted slag bucket side-discharging system for small-diameter tunnel and side-discharging method thereof

Technical Field

The invention belongs to the field of tunneling construction, and particularly relates to a rail-mounted slag bucket side-discharging system for a small-diameter tunnel and a side-discharging method thereof.

Background

At present, the existing rail-mounted slag hopper car is provided with two ways for discharging slag in a slag hole (underground installation hole), the first way is to adopt a gantry crane to lift the slag hopper to turn over and discharge slag (the underground installation hole is required to have a larger space), the second way is to adopt a rail-mounted shuttle car for discharging slag (slag discharge), wherein the tunnel excavation amount of the slag discharging way of the first way is larger, the construction cost is higher, the loading and unloading speed of the slag discharging way of the second way is slower, and because the car body of the shuttle car is wider, a corresponding staggered platform cannot be arranged in the tunnel of the drainage gallery, so that the slag conveying efficiency is influenced, and the tunneling efficiency of a tunneling machine (TBM) is further influenced.

Disclosure of Invention

The invention aims to provide a track type slag bucket side discharging system for a small-diameter tunnel and a side discharging method thereof, and aims to solve the problems that the existing related technology has larger tunnel excavation amount, higher construction cost and affects the tunneling efficiency of a tunneling machine (TBM).

In order to achieve the above object, the present invention adopts the following technical solutions:

the utility model provides a small diameter tunnel is with rail mounted formula sediment fill side discharge system, including setting up the rail mounted on the track, rotatable setting is fought on the rail mounted, setting up the switch door on the sediment fill to and set up the side push mechanism in unloading the sediment hole, side push mechanism with be connected with between the sediment fill and be used for promoting the sediment fill and carry out the sediment fill upset subassembly that overturns on the rail mounted, be provided with on the rail mounted and be used for unblock or locking when the sediment fill is in the upset state the lock mechanism of switch door, still be provided with in unloading the sediment hole and be used for preventing the rail mounted takes place the automobile body locking subassembly of turning on one's side because of the sediment fill upset.

In a preferred embodiment of the invention, the door lock mechanism comprises a rotating shaft arranged on the slag hopper and a rotating shaft arranged on the rail vehicle, wherein the rotating shaft is connected with the rotating shaft through a crank transmission assembly so as to drive the rotating shaft to rotate through the crank transmission assembly, and a door stop assembly corresponding to the opening and closing position of the opening and closing door is arranged on the rotating shaft.

In a preferred embodiment of the present invention, the crank transmission assembly includes a first crank connected to the rotation shaft and coaxially disposed with the rotation shaft, and a second crank connected to the rotation shaft and coaxially disposed with the rotation shaft, and the first crank is connected to the second crank through a link transmission member and drives the second crank to rotate.

In a preferred embodiment of the invention, the door stop assembly comprises a finger-shaped stop coaxially arranged with the rotation axis, the finger-shaped stop being fixed to the rotation axis.

In a preferred embodiment of the invention, the rail vehicle is further provided with a trolley locking component used for preventing the slag hopper from overturning automatically on one side close to the door lock mechanism, the trolley locking component comprises a hook seat and a trolley locking hook, the hook seat is arranged on the rail vehicle, one end of the trolley locking hook is rotatably arranged on the second crank, the other end of the trolley locking hook is provided with a hook body corresponding to the hook seat, and a trolley locking reinforcement is connected between the trolley locking hook and the rail vehicle.

In a preferred embodiment of the invention, the side pushing mechanism comprises a side pushing oil cylinder arranged in the slag discharging hole and a side pushing piston rod connected with the output end of the side pushing oil cylinder, and the spare end of the side pushing piston rod is connected with a front fork for laterally pushing the slag hopper.

In a preferred embodiment of the invention, the slag bucket overturning assembly comprises an overturning shaft mounted on the slag bucket and a limiting clamp rotatably mounted on the end part of the front fork.

In a preferred embodiment of the invention, the lower end of the side pushing oil cylinder is further provided with a lifting pit arranged in the slag discharging hole, and a lifting mechanism for supporting the side pushing oil cylinder is arranged in the lifting pit.

In a preferred embodiment of the invention, the vehicle body locking component comprises a rollover prevention oil cylinder, a swinging rod and a swinging seat, wherein one end of the swinging rod is hinged with the swinging seat, the other end of the swinging rod is connected with a fixing arm for preventing the rollover of the rail vehicle, and the middle part of the swinging rod is hinged with the output end of the rollover prevention oil cylinder.

In order to achieve the above object, the present invention adopts the following technical solutions:

a rail-mounted slag bucket side discharging method for a small-diameter tunnel comprises the following steps: the slag hopper moves to a slag discharging hole along with the rail crane, and a side pushing mechanism positioned in the slag discharging hole pushes the slag hopper through a slag hopper overturning assembly so as to enable the slag hopper to forward overturn in the slag discharging hole; the vehicle body locking component positioned in the slag discharging hole limits the rail vehicle so as to prevent the rail vehicle from side turning in the forward overturning or reverse overturning process of the slag hopper; when the slag hopper is turned forward, the door lock mechanism unlocks a switch door on the slag hopper until the switch door is opened, and at the moment, the slag hopper realizes a slag pouring function; after the slag hopper finishes pouring slag, the slag hopper reversely turns in the slag discharging hole until the switch door is closed, and at the moment, the door lock mechanism realizes a locking function on the switch door; after the door lock mechanism realizes the locking function of opening and closing the door, the vehicle body locking component and the side pushing mechanism are reset respectively.

The beneficial effects of the invention are as follows:

1. the invention provides a rail-mounted slag bucket side discharging system for a small-diameter tunnel and a side discharging method thereof, when a slag bucket does not need to be overturned (such as when the slag bucket is used for transporting slag stones), a vehicle body locking component not only can firmly connect a rail-mounted vehicle with the slag bucket when the slag bucket vehicle (comprising the rail-mounted vehicle and the slag bucket) turns sideways, but also can lock a switch door on the slag bucket to prevent slag leakage of the slag bucket due to the side thrust of internal materials, thereby improving the structural stability of the application; in the process of overturning the slag hopper, the opening and closing door can automatically realize the opening or closing function, meanwhile, the door lock mechanism synchronously realizes the unlocking or locking function, and the vehicle body locking component can further lock the opening and closing door on the slag hopper, so that the automatic door locking device is higher in automation degree, more convenient to use and better in structural stability.

2. The invention can take the side pushing mechanism as a power source, and the side pushing mechanism enables the slag hopper to realize the slag pouring (slag turning) function by the slag hopper overturning component without arranging a door crane, so that the space of the door crane slag hopper in the tunnel is not required to be expanded, the excavation amount is smaller, the occupied area is smaller, and the construction cost is lower.

3. Meanwhile, as the width of the slag bucket can be unlimited, the width of the slag bucket can be as small as possible, so that when the slag bucket of the application is used for loading slag after entering a heading machine (TBM), the safety distance between two sides of the slag bucket and a platform is large, and the slag can be smoothly loaded when turning at a small radius, so that the construction efficiency of the heading machine (TBM) is not affected by the construction efficiency of the heading machine (TBM).

Drawings

FIG. 1 is a schematic diagram of a side dump system for a small diameter tunnel in which a side dump truck and a slag bucket are in a closed and fully loaded state when a side thrust piston rod is in a contracted state;

FIG. 2 is a schematic structural diagram of a rail-mounted slag bucket side discharging system for a small-diameter tunnel, wherein the rail-mounted slag bucket is in a connected state with a slag bucket, and the slag bucket is in an unoccupied state;

FIG. 3 is a schematic structural view of a rail-mounted bucket side discharge system for small-diameter tunnels, according to the present invention, with the bucket in an inverted state and the lifting piston rod in a retracted state;

FIG. 4 is a schematic structural view of a rail-mounted slag bucket side discharging system for a small-diameter tunnel, when a slag bucket is in a turned-over slag discharging state and a lifting piston rod completes a contraction step;

FIG. 5 is a schematic diagram of a side-dumping system of a rail-mounted slag hopper for a small-diameter tunnel, wherein the slag hopper is in a reset and dumping state, and a limit clamp is in a turnover state;

FIG. 6 is a schematic diagram of a side dump system for a small diameter tunnel rail-mounted slag hopper in accordance with the present invention when the slag hopper, side pushing mechanism, lifting mechanism and hopper car locking assembly are in a reset condition;

FIG. 7 is a schematic view of a door lock mechanism according to the present invention;

fig. 8 is a schematic structural view of the slag bucket overturning assembly according to the invention.

Reference numerals: 11. rail vehicle; 12. a slag bucket; 2. a door lock mechanism; 21. a rotating shaft; 22. a rotation shaft; 23. a crank drive assembly; 231. a first crank; 232. a second crank; 233. a link transmission member; 2331. a connecting rod; 2332. a first transmission rod; 2333. a second transmission rod; 24. a door stop assembly; 241. finger-shaped baffle door; 243. a door stop rotating shaft; 3. a side pushing mechanism; 31. a side pushing oil cylinder; 32. laterally pushing the piston rod; 33. a front fork; 4. a vehicle body locking assembly; 41. a side turning oil cylinder; 42. a swinging rod; 43. a swinging seat; 44. a fixed arm; 5. a lifting mechanism; 51. lifting an oil cylinder; 52. lifting a piston rod; 53. a supporting and lifting seat; 54. a hinge base; 55. a cushion pad; 56. lifting the pit; 7. a slag bucket overturning assembly; 71. a turnover shaft; 72. a limit clamp; 73. the first overturning limiting assembly; 731. a fixing pin; 732. a stepped groove; 74. the second overturning limiting assembly; 741. a limiting pin; 742. overturning a reset spring; 75. a rollover prevention seat; 76. a tip insert; 8. opening and closing a door; 81. a door panel; 82. a hinge; 83. an opening and closing part; 9. a hopper car locking assembly; 91. a hook seat; 92. locking hook; 93. locking the vehicle reinforcement; 94. a hook body; 95. locking guide sleeve; 96. and locking the car guide block.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the drawings is only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art. It should be noted that the description of these examples is for aiding in understanding the present invention, but is not intended to limit the present invention.

The drainage corridor of the pumped storage power station is generally constructed by adopting a small-diameter heading machine (TBM), the underground layout of the drainage corridor is complex, and the tunnel connected with the drainage corridor is often used as a transportation channel of a tire type dump truck for other underground engineering construction, so that the tunnel cannot be used for arranging the transportation track of the rail vehicle 11.

Therefore, the prior art generally adopts a track type slag hopper car (comprising a slag hopper and a track crane) to convey the slag into a slag hole (underground installation hole) for discharging the slag, and then the discharged slag is loaded onto a tire type dump truck to be conveyed out of the hole through a connecting tunnel.

In the field of tunneling construction, because the tunnel diameter of a tunneling hole is smaller, a small-diameter tunneling machine (TBM) is often adopted to excavate a drainage gallery, and a small-diameter tunneling machine (TBM) is adopted to excavate slag stones, and because the slag stones cannot be transported by adopting a continuous belt conveyor, the slag stones can only be transported by adopting a rail-mounted slag bucket 12 (slag bucket 12 for short), and the method is specific: the rail-mounted slag hopper 12 firstly conveys slag stones to an underground installation hole under the traction of the rail-mounted crane 11, and then the slag hopper 12 is pushed to turn over by a preset trolley mechanism so as to enable the slag hopper 12 to realize a slag pouring function.

Currently, the existing rail-mounted slag hopper car has two ways of discharging slag in a slag hole (underground installation hole), wherein the first way is to adopt a gantry crane to hoist a slag lifting hopper to discharge slag from the side of the slag hopper 12, and the second way is to adopt a rail-mounted shuttle car to discharge slag (slag discharging):

in order to ensure the lifting elevation of the door crane, the first slag discharging mode needs to enlarge the height of the excavation section of the installation cavity, so that the tunnel excavation amount of the first slag discharging mode is larger, and the construction cost is higher;

although the shuttle car in the second way of unloading slag can self-unload slag stones, the shuttle car has the defects of slow slag loading and unloading speed, and because the body of the shuttle car is wide, corresponding staggered platforms cannot be arranged in the tunnel of the drainage gallery, only single-row shuttle cars can go in and out, thereby influencing the tunneling efficiency of the tunneling machine (TBM).

In view of the above problems, the present invention provides a track-mounted slag bucket side discharging system for a small-diameter tunnel, which aims to solve the problems of larger tunnel excavation amount, higher construction cost and influence on the tunneling efficiency of a tunneling machine (TBM) in the existing related scheme, and includes: the slag bucket type automatic unloading device comprises a rail crane 11 arranged on a rail, a slag bucket 12 rotatably arranged on the rail crane 11, a switch door 8 arranged on the slag bucket 12, and a side pushing mechanism 3 arranged in a slag unloading hole, wherein a slag bucket overturning assembly 7 for pushing the slag bucket 12 to overturn on the rail crane 11 is connected between the side pushing mechanism 3 and the slag bucket 12, a door lock mechanism 2 for unlocking or locking the switch door 8 when the slag bucket 12 is in an overturning state is arranged on the rail crane 11, and a vehicle body locking assembly 4 for preventing the rail crane 11 from overturning due to the overturning of the slag bucket 12 is further arranged in the slag unloading hole.

When the slag bucket 12 does not need to be overturned (such as the slag bucket 12 is used for transporting the slag stones), the vehicle body locking component not only can firmly connect the rail crane 11 with the slag bucket 12 when the slag bucket vehicle (comprising the rail crane 11 and the slag bucket 12) turns sideways, but also can lock the switch door 8 on the slag bucket 12 to prevent slag leakage of the slag bucket 12 due to the lateral thrust of internal materials, thereby increasing the structural stability of the application; in the process of overturning the slag hopper 12, the opening and closing door 8 can automatically realize the opening or closing function, meanwhile, the door lock mechanism 2 synchronously realizes the unlocking or locking function, and the car body locking component 9 can further lock the opening and closing door on the slag hopper, so that the automatic slag hopper locking device is higher in automation degree, more convenient to use and better in structural stability.

According to the invention, the side pushing mechanism 3 can be used as a power source, so that the slag pouring (slag turning) function can be realized by the application, and a door crane is not required to be arranged, so that the application does not need to excavate the position where the door crane is placed in a tunnel, and the application has the advantages of smaller excavation amount, smaller occupied area and lower construction cost; meanwhile, since the width of the slag bucket 12 can be unlimited, and the width of the slag bucket 12 can be as small as possible, when slag is filled after entering a heading machine (TBM), the slag bucket 12 is large in safety distance between two sides of the slag bucket and a platform, and smooth slag filling is facilitated when the turning radius is small, so that the construction efficiency of the heading machine (TBM) is not influenced by the construction efficiency of the heading machine (TBM), and the construction efficiency of the heading machine (TBM) is improved.

The door lock mechanism 2 comprises a rotating shaft 21 arranged on the slag hopper 12 and a rotating shaft 22 arranged on the rail vehicle 11, wherein the rotating shaft 21 is connected with the rotating shaft 22 through a crank transmission assembly 23 so as to drive the rotating shaft 22 to rotate through the crank transmission assembly 23, and a door stop assembly 24 corresponding to an opening and closing position 83 of the opening and closing door 8 is arranged on the rotating shaft 22.

In actual operation, the rotating shaft 21 can be mounted on a rotating seat (not shown), the rotating shaft 22 can be mounted on a rotating seat (not shown), the rotating seat and the rotating shaft 22 can be mounted on the rail vehicle 11, and the rotating shaft 21 rotates along with the slag hopper 12; when the slag hopper 12 rotates on the rail vehicle 11, the rotating shaft 21 is driven to rotate together.

In actual operation, when the rotating shaft 21 rotates, the crank transmission assembly 23 can drive the rotating shaft 22 to rotate, the rotating shaft 22 can drive the door stop assembly 24 to correspondingly rotate when rotating, and as the door stop assembly 24 is arranged at the opening and closing position 83 of the switch door 8, the door stop assembly 24 can release the door lock when rotating in the forward direction (clockwise) so that the switch door 8 can be opened by self under the thrust of slag stones or the action of gravity; the door stop assembly 24 can be when anticlockwise rotated, and the switch door 8 can be closed by oneself under the action of gravity (preferably, the bucket truck locking assembly 9 is further included) to the lock switch door 8 when the switch door 8 is closed, so that the degree of automation of this application is higher, and the potential safety hazard is less.

The crank transmission assembly 23 comprises a first crank 231 connected with the rotating shaft 21 and coaxially arranged with the rotating shaft 21, and a second crank 232 connected with the rotating shaft 22 and coaxially arranged with the rotating shaft 22, wherein the first crank 231 is connected with the second crank 232 through a connecting rod transmission member 233 and drives the second crank 232 to rotate.

In actual operation, the central line of the first crank 231 and the central line of the rotating shaft 21 are arranged in a collinear manner, the central line of the second crank 232 and the central line of the rotating shaft 22 are arranged in a collinear manner, the slag hopper 12 can drive the rotating shaft 21 to rotate when turning over, the rotating shaft 21 can drive the first crank 231 to rotate when rotating, the first crank 231 can continuously drive the second crank 232 to rotate under the action of the connecting rod driving piece 233, and the second crank 232 can drive the rotating shaft 22 to rotate when rotating, so that the power transmission function of the crank driving assembly 23 is realized, and the rotating shaft 21 can indirectly drive the rotating shaft 22 to rotate.

The link driving member 233 includes a link lever 2331, a first driving rod 2332 disposed at an end of the first crank 231, and a second driving rod 2333 disposed on the second crank 232, one end of the link lever 2331 is hinged to the first driving rod 2332, and the other end is hinged to the second driving rod 2333. Thus, the present application also realizes the layout of the link transmission member 233, and the first crank 231 can drive the second crank 232 to rotate under the action of the link transmission member 233.

The switch door 8 comprises a door plate 81, one end of the door plate 81 is rotatably connected with the slag hopper 12 through a hinge 82, and the other end of the door plate is in an empty state and forms an opening and closing position 83 with the slag hopper 12. Like this, this application has also realized the laying of switch door 8 promptly, and during actual operation, the axis of hinge 82 can be vertical setting, also can be the level setting.

In actual operation, the axis of the hinge 82 is set to be optimal in a horizontal manner, at this time, the hinge 82 may be disposed above the door plate 81, and when the slag bucket 12 is not in a turned state (for example, when the slag bucket 12 transports slag along with the rail crane 11), the bottom of the door plate 81 (i.e., the opening and closing position 83) is attached to the bottom of the slag bucket 12 under the action of gravity and the bucket locking assembly 9, at this time, the opening and closing position 83 is in a closed state, and the door stop assembly 24 locks the opening and closing position 83; when the slag bucket 12 is in a turnover state (such as when the slag bucket 12 is in a slag pouring state), under the action of gravity and unhooking of the hook body 94 in the bucket locking assembly 9, the bottom of the door plate 81 (namely the opening and closing part 83) is separated from the bottom of the slag bucket 12, the opening and closing part 83 is in an open state, the door stop assembly 24 can loosen the opening and closing part 83, and the slag bucket 12 realizes a slag pouring function.

The door stop assembly 24 includes a finger stop 241 coaxially disposed with the rotational axis 22, the finger stop 241 being secured to the rotational axis 22. In actual operation, one end of the finger-shaped shutter 241 is welded to the rotation shaft 22, and the other end corresponds to the opening/closing portion 83 of the opening/closing door 8. When the second crank 232 rotates, the rotation shaft 22 is driven to rotate, and the finger-shaped shutter 241 rotates along with the rotation shaft 22.

In practice, the finger-shaped shutter 241 may be sleeved on the rotation shaft 22, and the shutter assembly 24 may further include a shutter transmission member (not shown) that may be installed between the rotation shaft 22 and the second crank 232. The second crank 232, when rotated, drives the finger-shaped shutter 241 to swing up and down, thus, the present application provides another installation method and structure of the finger-shaped shutter 241.

The rail car 11 is still installed and is used for preventing the bucket truck locking subassembly 9 that the sediment fill 12 overturned by oneself in one side that is close to lock mechanism 2, bucket truck locking subassembly 9 includes couple seat 91 and lock car couple 92, and couple seat 91 installs on the rail car 11, lock car couple 92 one end rotatable install on second crank 232, the other end be equipped with the corresponding coupler body 94 of couple seat 91, lock car couple 92 with be connected with lock car reinforcement 93 between the rail car 11.

In actual operation, the locking hook 92 is rotatably mounted on the second crank 232 through the door shield transmission member 242, and the hopper car locking assembly 9 is not only used for locking when the slag hopper car (comprising the rail car 11 and the slag hopper 12) laterally turns, but also can lock the switch door on the slag hopper, so that slag leakage caused by the lateral thrust of the internal materials is prevented, and the structural stability of the locking device is improved.

When the slag hopper 12 is not required to rotate on the rail vehicle 11 (such as when slag stones are transported), the slag hopper 12 and the rail vehicle 11 can be firmly connected through the hopper locking assembly 9; when this application needs sediment fill 12 to pour the sediment, this application can unbuck hopper car locking component 9 to let sediment fill 12 realize the function of pouring the sediment smoothly.

The car locking reinforcement 93 includes a car locking guide 95 slidably fitted over the car locking hook 92, and a car locking guide 96 provided on the car locking hook 92 and corresponding to the guide. The locking guide sleeve 95 can slide on the locking hook 92, and when the locking hook 92 and the rail vehicle 11 need to be locked through the locking reinforcement 93, the locking guide sleeve 95 and the locking guide block 96 are put together; when the locking hook 92 and the rail car 11 are required to be locked and separated so that the slag hopper 12 can smoothly rotate, the locking guide sleeve 95 and the locking guide block 96 are only required to be separated, and therefore the arrangement of the locking reinforcement 93 is realized.

The contact part between the locking guide sleeve 95 and the locking guide block 96 is of a wedge-shaped structure. Specifically, the locking guide sleeve 95 may be set to a wedge structure at the contact position, and the locking guide block 96 may also be set to a wedge structure at the contact position, so, the present application may pass through the two wedge structures, when the locking hook 92 and the rail vehicle 11 need to be locked, the locking hook 92 and the rail vehicle 11 are connected together, when the unlocking hook 92 and the rail vehicle 11 need to be separated, the locking guide sleeve 95 is allowed to slide on the locking hook 92, so, the present application realizes the layout of the locking reinforcement 93.

The main function of the car locking reinforcement 93 is to connect the car locking hook 92 with the rail car 11 as required to allow the slag hopper 12 to move along with the rail car 11, or to separate the car locking hook 92 from the rail car 11 as required to allow the slag hopper 12 to realize the slag pouring function.

In actual operation, on the premise of satisfying the above locking function, the car locking reinforcement 93 may also adopt other structures, for example, the car locking reinforcement 93 may further include a plurality of first through holes (not identified in the drawing) provided on the car locking hook 92, a plurality of second through holes (not identified in the drawing) provided on the rail car 11, and a preset positioning rod (not identified in the drawing), and the specific: when the car locking hook 92 and the rail car 11 are required to be connected together, the positioning rod passes through the first through hole and the second through hole; when the car locking hook 92 and the rail car 11 are required to be separated, the positioning rod is taken away from the first through hole and the second through hole.

The side pushing mechanism 3 comprises a side pushing oil cylinder 31 arranged in the slag discharging hole and a side pushing piston rod 32 connected with the output end of the side pushing oil cylinder 31, and a front fork 33 for laterally pushing the slag hopper 12 is connected with the spare end of the side pushing piston rod 32. In this way, the invention also realizes the layout of the side pushing mechanism 3, and the front fork 33 can be matched with the overturning shaft 71 to push the slag bucket 12 laterally through the overturning shaft 71, so that the slag bucket 12 generates overturning motion.

The slag hopper overturning assembly 7 comprises an overturning shaft 71 arranged on the slag hopper 12 and a limiting clamp 72 rotatably arranged at the end part of the front fork 33.

In actual operation, the slag bucket overturning assembly 7 is arranged between the spare end (front fork 33) of the side pushing piston rod 32 and the upper end of the slag bucket 12, and the side pushing oil cylinder 31 is used as a power source of the side pushing mechanism 3, so that the slag bucket 12 can be pushed laterally; the side pushing piston rod 32 is used as a power transmission part, and the front fork 33 is driven to extend forwards or backwards in the extending or contracting process of the side pushing piston rod 32, so that the overturning function of the slag hopper 12 can be realized under the action of the side pushing mechanism 3.

In actual operation, the main function of the slag bucket overturning assembly 7 is to push the slag bucket 12 to overturn under the action of the side push piston rod 32, the overturning shaft 71 is mainly used as a thrust acting point of the side push piston rod 32 on the slag bucket 12, and the front fork 33 is mainly used as the extension of the side push piston rod 32, so that the side push piston rod 32 can better apply side thrust on the slag bucket 12.

In actual operation, the present application can adopt multiple upset limit structure to carry out spacingly to spacing card 72 to let side push piston rod 32 realize promoting slag bucket 12 and overturn the function, as long as this upset limit structure satisfies following condition can: during the overturning process (forward overturning or reverse overturning) of the slag hopper 12, the overturning limiting structure connects the side pushing piston rod 32 and the slag hopper 12 into a whole; the overturning limiting structure can separate the side pushing piston rod 32 from the slag hopper 12 by manual or other modes when the slag hopper 12 is overturned or not overturned.

For example, the flip-stop structure may employ a first flip-stop assembly 73 and a second flip-stop assembly 74, which are described below, to stop the stop card 72; the overturning limiting structure can also adopt modes such as an electromagnet to connect the side pushing piston rod 32 and the slag bucket 12, when the electric power is on, the side pushing piston rod 32 and the slag bucket 12 are connected together, and when the electric power is off, the side pushing piston rod 32 and the slag bucket 12 are separated; the overturning limiting structure can also adopt a detachable limiting bolt, when the slag bucket 12 is required to rotate, the side pushing piston rod 32 and the slag bucket 12 are connected through the detachable limiting bolt, when the slag bucket 12 is not required to rotate, the detachable limiting bolt is removed from the slag bucket 12, and the side pushing piston rod 32 and the slag bucket 12 are in a separated state.

Preferably, the front fork 33 is provided with a first overturning limiting assembly 73 for limiting the limiting clamp 72 during anticlockwise rotation, and a second overturning limiting assembly 74 for limiting the limiting clamp 72 during clockwise rotation is arranged between the front fork 33 and the slag bucket 12.

In actual operation, the first overturning limiting assembly 73 can be used for limiting the anticlockwise travel of the limiting clamp 72 when the slag hopper 12 rotates; the second flip-stop assembly 74 may be used to stop the clockwise travel of the stop block 72 as the slag hopper 12 rotates; finally, the side pushing piston rod 32 of the application is arranged in the slag hole, and can be used for pushing the slag hopper 12 laterally so as to enable the slag hopper 12 to overturn, and can be always in a state connected with the slag hopper 12 when the slag hopper 12 is overturned, so that the application can conveniently and rapidly enable the slag hopper 12 to realize overturning and resetting functions, and the application also realizes the side pushing function of the slag hopper car.

The first flip-stop assembly 73 includes a fixed pin 731 disposed on the front fork 33, the fixed pin 731 being located between the side push piston rod 32 and an end of the stop block 72 remote from the slag hopper 12. The fixing pin 731 can realize a limiting function on the limiting card 72 when the limiting card 72 rotates anticlockwise, so as to limit the stroke of the limiting card 72 when rotating anticlockwise, thereby having higher structural stability.

The stopper 72 is provided with a stepped groove 732 on a side close to the fixing pin 731, and an outer wall of the fixing pin 731 is in contact with a side wall of the stepped groove 732. The step groove 732 can be used as a rotation limiting point of the fixing pin 731 and the limiting card 72, so that the fixing pin 731 can more easily realize a counterclockwise limiting function on the limiting card 72, and collision sound generated when the fixing pin 731 limits the limiting card 72 can be reduced, thereby being more convenient to use.

The second overturning limiting assembly 74 comprises a limiting pin 741 detachably arranged on the slag hopper 12, and the limiting pin 741 is positioned between the overturning shaft 71 and one end of the limiting clamp 72, which is close to the slag hopper 12. The limiting pin 741 can realize a limiting function on the limiting card 72 when the limiting card 72 rotates clockwise, so as to prevent the stroke of the limiting card 72 when rotating clockwise, thereby having higher structural stability.

In actual operation, the limiting pin 741 is a detachable bolt, and can be detached from the front fork 33 as required, and at this time, the limiting pin 741 does not limit the limiting clamp 72, so that the front fork and the slag hopper can be freely separated; the limiting pin 741 may also be disposed on the front fork to limit the limiting clip 72, where the front fork 33 may push the slag bucket 12 to forward turn, or may pull the slag bucket 12 to reverse turn.

The second flip-stop assembly 74 further includes a flip-return spring 742 for returning the stop card 72 to allow the stop card 72 to more conveniently perform a return function, thereby making the application more convenient.

The turnover reset spring is sleeved on the limiting rotating shaft 21, one end of the turnover reset spring is connected with the front fork 33, and the other end of the turnover reset spring is connected with one end, close to the slag hopper 12, of the limiting clamp 72. Like this, this application has also realized the laying of upset reset spring promptly to let this application use more conveniently.

The front fork 33 is U-shaped as a whole, one end of the front fork 33 is connected with a rollover prevention seat 75, the other end of the front fork 33 is connected with a sharp mouth insertion block 76, the middle part of the front fork 33 corresponds to the turnover shaft 71, and the limit clamp 72 is arranged on the rollover prevention seat 75. Like this, this application has also realized the laying of front fork 33 promptly, and under the effect of above-mentioned front fork 33, this application uses more conveniently.

The lower end of the side pushing oil cylinder 31 is also provided with a lifting pit 56 arranged in the slag discharging hole, and a lifting mechanism 5 for supporting the side pushing oil cylinder 31 is arranged in the lifting pit 56. The lifting pit 56 can be used for placing the side pushing oil cylinder 31 and the lifting mechanism 5, so that a workbench is not required to be arranged for placing the side pushing oil cylinder 31 and the lifting mechanism 5, and the production cost of the application is reduced; the lifting mechanism 5 may be used to support the side-pushing cylinder 31 to increase the structural stability of the present application.

The lifting mechanism 5 comprises a lifting oil cylinder 51 arranged in the lifting pit 56 and a lifting piston rod 52 connected with the output end of the lifting oil cylinder 51, and the free end of the lifting piston rod 52 is connected with a lifting seat 53 for placing the side pushing oil cylinder 31.

In actual working, the lifting oil cylinder 51 is used as a power source of the lifting mechanism 5, so that the lifting function of the opposite side pushing oil cylinder 31 can be realized; the lifting piston rod 52 serves as a power transmission part, and the lifting seat 53 is driven to ascend or descend in the process of extending or contracting the lifting piston rod 52, so that the lifting seat 53 can be always contacted with the side pushing oil cylinder 31 according to the position of the side pushing oil cylinder 31, and the lifting function of the lifting oil cylinder 51 can be realized under the action of the lifting seat 53.

The free end of the lifting piston rod 52 is connected with a hinge seat 54 which is rotatably arranged, and the lifting seat 53 is arranged on the hinge seat 54. Like this, this application can adjust the contained angle scope between the central line of hinge seat 54 and the central line of lifting piston rod 52 as required to let the practicality of lifting cylinder 51 stronger, application scope is wider.

One end of the supporting seat 53 is provided with a cushion pad 55 corresponding to the side pushing cylinder 31, and the other end is rotatably provided on the hinge seat 54. Like this, this application can adjust the contained angle scope between the central line of holding in the palm the lifting seat 53 and the central line of hinge seat 54 as required to let the practicality of lifting hydro-cylinder 51 stronger, application scope is wider.

In actual operation, the rotatable setting of hinge seat 54 is on lifting piston rod 52, mainly is used for roughly adjusting the position of hinge seat 54, will lift seat 53 rotatable setting on hinge seat 54, mainly is used for on the basis of above-mentioned roughly adjusting the position of hinge seat 54, further finely adjusts the position of lifting seat 53 again, like this, under the combined action of above-mentioned two-stage rotation angle regulation mode, what this application can be better lets lifting mechanism 5 realize lifting function.

In actual operation, the rotation setting of the hinge seat 54 and the lifting seat 53 can be realized through the ratchet pawl mechanism, and the rotation setting of the hinge seat 54 and the lifting seat 53 can also be realized through other structures (mechanisms), so that when the hinge seat 54 and the lifting seat 53 are mainly enabled to rotate to the proper positions, the limiting function can be realized on the hinge seat 54 and the lifting seat 53, and the rotation setting mode of the hinge seat 54 and the lifting seat 53 is a conventional technology in the field and is not repeated herein.

The vehicle body locking component 4 comprises a rollover prevention oil cylinder 41, a swinging rod 42 and a swinging seat 43, wherein one end of the swinging rod 42 is hinged with the swinging seat 43, the other end of the swinging rod 42 is connected with a fixing arm 44 for preventing the rollover of the rail vehicle 11, and the middle part of the swinging rod 42 is hinged with the output end of the rollover prevention oil cylinder 41.

In actual operation, the vehicle body locking component 4 can be used for preventing the rail vehicle 11 from turning over when the slag hopper 12 rotates; meanwhile, in the vehicle body rollover prevention mechanism, the rollover prevention cylinder 41 can be used as a power source for pulling the swinging rod 42; the swinging rod 42 can serve as a power transmission part and pull the fixing arm 44 to swing in the tunnel, and the free end (the end far away from the rollover prevention seat 75) of the fixing arm 44 can be used for limiting the rail vehicle 11 so as to prevent the rail vehicle 11 from rollover, so that under the combined action of the rollover prevention oil cylinder 41, the swinging rod 42, the fixing arm 44 and other components, the rollover prevention function of the rail vehicle and the function of locking the rail vehicle are realized.

In order to achieve the above object, the present invention adopts the following technical solutions:

a rail-mounted slag bucket side discharging method for a small-diameter tunnel comprises the following steps:

s1, a slag bucket 12 moves to a slag discharging hole along with a rail crane 11, and a side pushing mechanism 3 positioned in the slag discharging hole pushes the slag bucket 12 through a slag bucket overturning assembly 7 so as to enable the slag bucket 12 to forward overturn in the slag discharging hole;

in actual operation, in the step S1, the rail crane 11 (or called a flat car) firstly transports the slag bucket 12 to the designated position of the slag hole, when the slag bucket 12 does not forward overturn or reverse overturn, the slag bucket 12 and the rail crane 11 are connected into a whole under the action of the bucket locking assembly 9, the slag bucket 12 will not rollover under the action of gravity, and at this time, the switch door 8 is in a locking state.

In actual operation, the side pushing mechanism 3 mainly pushes the slag bucket overturning assembly 7 and the upper end of the slag bucket 12 to push the slag bucket 12 to forward overturn through the side pushing oil cylinder 31 in sequence, wherein the main function of forward overturn is to enable the slag bucket 12 to realize the slag dumping function, and the slag bucket can rotate clockwise (as shown in fig. 1-2) or anticlockwise.

In actual operation, the working principle of the side pushing mechanism 3 and the working principle of the slag bucket overturning assembly 7 are described above with reference to the side pushing mechanism 3 and the slag bucket overturning assembly 7, and are not described herein.

S2, limiting the rail vehicle 11 by the vehicle body locking assembly 4 positioned in the slag discharging hole so as to prevent the rail vehicle 11 from turning over in the forward or reverse turning process of the slag hopper 12;

in the step S2, the rollover prevention cylinder 41 pushes the fixed arm 44 to rotate through the swing rod 42, so that the fixed arm 44 realizes a limiting function on the rail vehicle 11, thereby preventing the rail vehicle 11 from rollover during rotation (forward rollover or reverse rollover) of the slag bucket 12, and the working principle of the vehicle body locking assembly 4 can refer to the description of the vehicle body locking assembly 4 above, which is not repeated herein.

S3, when the slag hopper 12 is turned forward, the door lock mechanism 2 unlocks the switch door 8 on the slag hopper 12 until the switch door 8 is opened, and at the moment, the slag hopper 12 realizes a slag pouring function;

In the step S3, when the slag bucket 12 is turned forward, the side pushing cylinder 31 in the side pushing mechanism 3 is in an extended state, the crank driving assembly 23, the link driving member 233 and the door stop assembly 24 are turned forward, the door lock mechanism 2 unlocks the door 8 and opens the door 8, so that the slag pouring of the slag bucket 12 can be performed synchronously, the side pushing cylinder 31 in the side pushing mechanism 3 is used as a power source, and the crank driving assembly 23 and the door stop assembly 24 in the door lock mechanism 2 are turned forward synchronously (e.g. clockwise) so that the door lock mechanism 2 unlocks the door 8, thereby realizing the slag pouring function when the slag bucket 12 is turned to a certain extent.

In actual operation, the principle of unlocking the door lock mechanism 2 and the principle of deslagging the slag bucket 12 can be referred to the above description of the door lock mechanism 2, and the step S3 includes the following steps:

s31, the lifting cylinder 51 adjusts the position of the side pushing cylinder 31 through the lifting piston rod 52, the side pushing cylinder 31 enables the side pushing piston rod 32 to extend, and the side pushing piston rod 32 enables the front fork 33 to be inserted into a position corresponding to the overturning shaft 71;

s32, under the combined action of the first overturning limiting assembly 73 and the second overturning limiting assembly 74, the limiting clamp 72 enables the front fork 33 and the slag hopper 12 to be connected together;

S33, the lifting cylinder 51 contracts the lifting piston rod 52 to separate the lifting mechanism 5 from the side pushing mechanism 3, the locking reinforcement 93 on the trolley locking assembly 9 is unlocked, the hook seat 91 is separated from the locking hook 92, and therefore the slag hopper 12 can rotate on the trolley 11;

s34, the slag bucket 12 rotates positively (clockwise) under the action of the overturning shaft 71, the slag bucket 12 sequentially passes through the rotating shaft 21, the first crank 231, the connecting rod driving piece 233, the second crank 232 and the rotating shaft 22, the door stop assembly 24 is driven to rotate positively (clockwise), the door stop assembly 24 rotates positively (clockwise), namely, the unlocking process is achieved, and at the moment, the slag bucket 12 is converted into an inclined state from a vertical state, and the switch door 8 can be automatically opened under the action of gravity, so that the slag bucket 12 also achieves the slag pouring function.

S4, after the slag hopper 12 finishes deslagging, reversely overturning the slag hopper 12 in a slag discharging hole until the switch door 8 is closed, and at the moment, the door lock mechanism 2 realizes a locking function for the switch door 8;

in the step S4, when the slag bucket 12 is reversely turned, the side pushing cylinder 31 in the side pushing mechanism 3 is in a contracted state, the crank driving assembly 23, the link driving member 233 and the door stop assembly 24 are reversely turned, the door locking mechanism 2 locks the door opening and closing 8 and closes the door opening and closing 8, so that the slag bucket 12 can be synchronously turned, the side pushing cylinder 31 in the side pushing mechanism 3 is used as a power source, and the crank driving assembly 23 and the door stop assembly 24 in the door locking mechanism 2 synchronously reversely turn (e.g. anticlockwise) to close the door opening and closing 8 and lock the door opening and closing 8 by the door locking mechanism 2.

When the slag hopper 12 is turned reversely (i.e. after the slag hopper 12 is reset), the door plate 81 in the switch door 8 is in a natural closed state under the action of gravity, and at this time, the door stop assembly 24 can realize a locking function on the switch door 8. The principle of the door lock mechanism 2 effecting locking and the principle of the switch door 8 effecting closing can be referred to the above description of the door lock mechanism 2 and the switch door 8, in particular:

in actual operation, the principle of unlocking the door lock mechanism 2 and the principle of deslagging the slag bucket 12 can be referred to the above description of the door lock mechanism 2, and the step S4 includes the following steps:

s41, the side pushing piston rod 32 is contracted, and under the action (blocking) of the limiting clamp 72, the side pushing piston rod 32 pulls the turnover shaft 71 to reversely (anticlockwise) rotate the slag hopper 12;

s42, the slag hopper 12 sequentially passes through the rotating shaft 21, the first crank 231, the connecting rod transmission piece 233, the second crank 232 and the rotating shaft 22 to drive the door stop assembly 24 to reversely (anticlockwise) rotate, wherein the process of reversely (anticlockwise) rotating the door stop assembly 24 is a locking process, and the slag hopper 12 is changed from an inclined state to a vertical state at the moment, the switch door 8 is automatically closed under the action of gravity, so that the slag hopper 12 also realizes a reset function;

S43, manually rotating the limiting clamp 72 to enable the limiting clamp 72 to be in an inclined and straight position, taking out the limiting pin, and separating the front fork 33 from the slag bucket 12;

s44, resetting the limiting clamp 72, enabling the lifting piston rod 52 to extend through the lifting oil cylinder 51 so as to enable the lifting mechanism 5 to be in contact with the side pushing mechanism 3, and connecting the hook seat 91 with the car locking hook 92 through the car locking reinforcing member 93 on the hopper car locking assembly 9.

S5, after the door lock mechanism 2 realizes a locking function on the opening and closing door 8, the vehicle body locking assembly 4 and the side pushing mechanism 3 are reset respectively.

When the device is in actual work, after the vehicle body locking component 4 and the side pushing mechanism 3 are reset, the side pushing oil cylinder 31 and the slag hopper 12 in the side pushing mechanism 3 are separated, the slag hopper 12 and the rail car 11 are firmly connected together by the hopper locking component 9, so that the device completes the side discharging process, and the next full-load slag hopper car (comprising the rail car 11 and the slag hopper 12) is in place and is ready for discharging slag.

Compared with the prior art, the invention has the following beneficial effects:

1. the side pushing mechanism 3 is used as a power source, the slag pouring (slag turning) function can be realized by itself, and a door crane is not required to be arranged, so that the position where the door crane is placed is not required to be excavated in a tunnel, and the excavation amount is small, the occupied area is small and the construction cost is low;

2. The width of the slag hopper 12 can be unlimited, and the width of the slag hopper 12 can be as small as possible, so that when the slag hopper 12 is filled with slag after entering a tunneling machine (TBM), platforms at two sides of the slag hopper 12 can be as wide as possible, the construction efficiency of the tunneling machine (TBM) is not affected by the application, and the construction efficiency of the tunneling machine (TBM) is improved;

3. the anti-rollover mechanism of the vehicle body can be used for preventing the slag hopper 12 from rollover when rotating, and the anti-rollover function is realized under the combined action of the anti-rollover oil cylinder 41, the swinging rod 42, the fixed arm 44 and other parts; the door stop assembly 24 can release the door lock when rotating clockwise so that the door 8 can be opened automatically under the thrust of slag stones or the action of gravity; the door stop assembly 24 can be used for automatically closing the switch door 8 under the help of staff or the action of gravity when rotating anticlockwise, and locking the switch door 8 when the switch door 8 is closed, so that the automation degree is higher, and the potential safety hazard is smaller;

4. the side pushing piston rod 32 is arranged in the slag hole, can be used for pushing the slag hopper 12 laterally so as to enable the slag hopper 12 to overturn, and can be always in a state connected with the slag hopper 12 when the slag hopper 12 overturns, so that the slag hopper 12 can be conveniently and rapidly enabled to realize overturning and resetting functions, and therefore the side pushing function of the slag hopper car is realized;

5. The slag hopper 12 and the rail vehicle 11 can be firmly connected together through the hopper car locking assembly 9; when the slag hopper 12 is required to rotate on the rail vehicle 11 (such as slag pouring), the hopper locking assembly 9 can be unlocked, so that the slag hopper 12 can smoothly realize a slag pouring function;

6. the lifting pit 56 can be used for placing the side pushing oil cylinder 31 and the lifting mechanism 5, so that a workbench is not required to be arranged for placing the side pushing oil cylinder 31 and the lifting mechanism 5, and the production cost of the application is reduced; the lifting mechanism 5 may be used to support the side-pushing cylinder 31 to increase the structural stability of the present application.

Finally, it should be noted that: the foregoing description is only of the preferred embodiments of the invention and is not intended to limit the scope of the invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a small diameter tunnel is with rail mounted sediment fill side discharge system, its characterized in that, including setting up rail mounted on the track (11), rotatable sediment fill (12) that set up on rail mounted (11), set up switch door (8) on sediment fill (12), and set up side push mechanism (31) in unloading the sediment hole, side push mechanism (31) with be connected with between sediment fill (12) be used for promoting sediment fill (12) and carry out sediment fill upset subassembly (7) that overturn on rail mounted (11), be provided with on rail mounted (11) and be used for unblock or locking when sediment fill (12) are in the upset state door lock mechanism (2) of switch door (8), still be provided with in unloading the sediment hole and be used for preventing rail mounted (11) take place automobile body locking subassembly (4) of turning on one's side because of sediment fill (12) upset.

2. The rail-mounted slag bucket side discharging system for a small-diameter tunnel according to claim 1, wherein: the door lock mechanism (2) comprises a rotating shaft (21) arranged on the slag hopper (12) and a rotating shaft (22) arranged on the rail vehicle (11), wherein the rotating shaft (21) is connected with the rotating shaft (22) through a crank transmission assembly (23) so as to drive the rotating shaft (22) to rotate through the crank transmission assembly (23), and a door stop assembly (24) corresponding to an opening and closing part (83) of the opening and closing door (8) is arranged on the rotating shaft (22).

3. A rail-mounted slag bucket side discharge system for a small diameter tunnel as claimed in claim 2, wherein: the crank transmission assembly (23) comprises a first crank (231) connected with the rotating shaft (21) and coaxially arranged with the rotating shaft (21), and a second crank (232) connected with the rotating shaft (22) and coaxially arranged with the rotating shaft (22), wherein the first crank (231) is connected with the second crank (232) through a connecting rod transmission piece (233) and drives the second crank (232) to rotate.

4. A rail-mounted slag bucket side discharge system for a small diameter tunnel as claimed in claim 3, wherein: the door stop assembly (24) comprises a finger-shaped stop door (241) coaxially arranged with the rotating shaft (22), and the finger-shaped stop door (241) is fixed on the rotating shaft (22).

5. The track-mounted slag bucket side dumping system for small-diameter tunnels as set forth in claim 4, wherein: the rail car (11) is still installed in one side that is close to lock mechanism (2) and is used for preventing bucket truck locking subassembly (9) that sediment fill (12) overturned by oneself, bucket truck locking subassembly (9) are including couple seat (91) and lock car couple (92), and couple seat (91) are installed on rail car (11), lock car couple (92) one end rotatable install on second crank (232), the other end be equipped with couple body (94) corresponding to couple seat (91), lock car couple (92) with be connected with lock car reinforcement (93) between rail car (11).

6. A track-mounted slag bucket side discharge system for a small diameter tunnel as defined in claim 1, wherein: the side pushing mechanism (31) comprises a side pushing oil cylinder (31) arranged in the slag discharging hole and a side pushing piston rod (32) connected with the output end of the side pushing oil cylinder (31), and a front fork (33) for laterally pushing the slag hopper (12) is connected to the free end of the side pushing piston rod (32).

7. The rail-mounted slag bucket side discharging system for a small-diameter tunnel according to claim 6, wherein: the slag hopper overturning assembly (7) comprises an overturning shaft (71) arranged on the slag hopper (12) and a limiting clamp (72) rotatably arranged at the end part of the front fork (33).

8. The track-mounted slag bucket side-dumping system for small-diameter tunnels of claim 6, wherein: the lower end of the side pushing oil cylinder (31) is also provided with a lifting pit (56) arranged in the slag discharging hole, and a lifting mechanism (5) for supporting the side pushing oil cylinder (31) is arranged in the lifting pit (56).

9. A track-mounted slag bucket side discharge system for a small diameter tunnel as defined in claim 1, wherein: the vehicle body locking assembly (4) comprises a rollover prevention oil cylinder (41), a swinging rod (42) and a swinging seat (43), one end of the swinging rod (42) is hinged to the swinging seat (43), the other end of the swinging rod is connected with a fixing arm (44) for preventing the rollover of the rail vehicle (11), and the middle part of the swinging rod (42) is hinged to the output end of the rollover prevention oil cylinder (41).

10. The rail-mounted slag bucket side discharging method for the small-diameter tunnel is characterized by comprising the following steps of:

the slag hopper (12) moves to a slag discharging hole along with the rail crane (11), and a side pushing mechanism (31) positioned in the slag discharging hole pushes the slag hopper (12) through a slag hopper overturning assembly (7) so as to enable the slag hopper (12) to forward overturn in the slag discharging hole;

the vehicle body locking component (4) positioned in the slag discharging hole limits the rail vehicle (11) so as to prevent the rail vehicle (11) from turning over in the forward or reverse turning process of the slag hopper (12);

When the slag hopper (12) is turned forward, the door lock mechanism (2) unlocks the switch door (8) on the slag hopper (12) until the switch door (8) is opened, and at the moment, the slag hopper (12) realizes a slag pouring function;

after the slag hopper (12) finishes pouring slag, the slag hopper (12) reversely turns in the slag discharging hole until the opening and closing door (8) is closed, and at the moment, the door lock mechanism (2) realizes a locking function on the opening and closing door (8);

after the door lock mechanism (2) realizes the locking function on the opening and closing door (8), the vehicle body locking assembly (4) and the side pushing mechanism (31) are reset respectively.