CN114856687A - Full-face roadheader and its supporting system - Google Patents

Abstract

The invention relates to the field of excavation equipment for soil layers or rock layers, in particular to a full-section excavator and a supporting system thereof. The rear supporting system of the full-face roadheader includes a rear supporting trailer group and a material transport system for transporting materials from the rear to the rear supporting trailer group, the material transport system includes a transport vehicle and a control wheel for controlling the transport vehicle by means of diverting wheels. A moving winch, the rear supporting trailer group is provided with a material transfer device for transferring materials between the material transport system and the roadheader, and there is a material transfer position between the material transfer device and the transport vehicle, and the modified The steering wheel is arranged on the rear supporting trailer group, and is located in front of the intermediate indexing position of the material, so that the transport vehicle can reach the intermediate indexing position of the material. During the excavation process of the full-section roadheader, there is no need to regularly adjust the position of the diverting wheel in the tunnel, thereby solving the problem of inconvenient use of the material transport system of the existing full-section roadheader.

Description

Full-face roadheader and its supporting system

technical field

The invention relates to the field of excavation equipment for soil layers or rock layers, in particular to a full-section excavator and a supporting system thereof.

Background technique

Inclined shaft tunnel project is a key project in the construction of pumped storage power stations and coal mines. Inclined shaft TBM, as a full-section roadheader with high driving efficiency and high safety factor, is expected to realize less manned and unmanned intelligent construction in the field of mine construction, and can be used to solve the excavation problems of inclined shafts and tunnels. The main components of the inclined shaft TBM are the main engine and the rear supporting system. The main engine includes a shield body, a cutter head, a main drive, a propulsion device, an anti-rolling device and a rear support. The cutter head is installed in the shield body through the main drive, and the propulsion device and the support device are installed on the main beam behind the shield body. It is used to provide the driving load required for the excavation of the main machine and assist the main machine to change steps. The rear supporting system includes a trailer group consisting of electro-hydraulic trailers, material transfer trailers and other trailers, as well as a transportation system that transports consumables from the tunnel entrance to the host or transports construction personnel.

Regarding the anti-slip problem of TBM, there are many related solutions at present. For example, the Chinese patent with the announcement number CN210509184U and the announcement date on May 12, 2020, the Chinese patent with the announcement number CN206600173U and the announcement date on October 31, 2017 all involve the anti-rolling device of TBM; the publication number is CN113217001A, the patent application published on August 6, 2021, focuses on the construction method of the inclined shaft TBM anti-slip car; however, in the prior art, there are few technologies related to the transportation of inclined shaft TBM materials, such as the above-mentioned patents or patents None of the applications involved the material transportation of the inclined shaft TBM.

In response to the above problems, the patent application with the publication number of CN112377245A and the publication date of 2021.02.19 provides an inclined shaft material transportation system and transportation method, wherein the inclined shaft material transportation system includes a first subsystem and a second subsystem , the first subsystem is arranged between the bottom of the inclined shaft and the tail of the inclined shaft TBM, and the second subsystem is arranged between the tail of the inclined shaft TBM and the main engine of the inclined shaft TBM, wherein the first subsystem is used to remove materials or personnel from the inclined shaft The bottom is sent to the tail of the TBM, including the reversing wheel set, hoist and locomotive device. The hoist is set at the bottom of the inclined shaft, and the reversing wheel set is set above the tail of the TBM and fixed on the wall of the tunnel. The locomotive device is fixed on the wire rope of the hoist. When in use, the wire rope is driven by the hoist, which in turn drives the locomotive device to reciprocate to transport materials or construction personnel. After the TBM has excavated a certain distance, it can realize the follow-up of the locomotive device by moving the position of the reversing wheel set.

In addition, the patent with the announcement number of CN206600173U and the announcement date of October 31, 2017 discloses a new type of open-type TBM for large-slope inclined wells. The material transport vehicle of the open type TBM is driven by laying a track at the bottom of the tunnel. It still relies on the winch and the diverting wheel fixed in the tunnel to achieve forward movement. Therefore, it is also necessary to change the direction by moving after the TBM has been excavated for a certain distance. Wheel position to enable follow-up of the transporter. The regular movement of the diverting wheel is very inconvenient, which will reduce the construction efficiency to a certain extent.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a rear supporting system of a full-section roadheader, so as to solve the problem of inconvenient use of the material transportation system of the existing full-section roadheader.

At the same time, the purpose of the present invention is to provide a full-section roadheader using the full-section roadheader rear supporting system of the present invention.

In order to solve the above problems, the rear supporting system of the full-section roadheader of the present invention adopts the following technical solutions: the rear supporting system of the full-section roadheader includes a rear supporting trailer group and a material transportation system for transporting materials from the rear to the rear supporting trailer group , the material transport system includes a transport vehicle and a winch for controlling the movement of the transport vehicle through diverting wheels, and the rear supporting trailer set is provided with materials for transferring materials between the material transport system and the roadheader Transfer device, there is a material intermediate position between the material transfer device and the transport vehicle, and the diverting wheel is arranged on the rear supporting trailer group, located in front of the material intermediate position, so that the transport vehicle can reach Translocation in the material.

Beneficial effects: Compared with the prior art, the rear supporting system of the full-section roadheader of the present invention arranges the diverting wheel on the rear supporting trailer group or the main engine of the full-section roadheader by changing the position elements of the steering wheel. And it is located in front of the index in the material. When the main engine of the full-section roadheader moves forward, the position of the steering wheel will change accordingly, that is, a stable relative positional relationship can be formed between the steering wheel and the index in the material. It is no longer necessary to regularly adjust the position of the diverting wheel in the tunnel, thereby solving the problem of inconvenient use of the material transport system of the existing full-section roadheader.

Further, the steering wheel is a flat wheel, and the axis is perpendicular to the bottom of the tunnel. When the diverting wheel is set as a flat wheel, and the axis is perpendicular to the bottom of the tunnel, the vertical space occupied by the diverting wheel can be reduced, and the extension direction of the traction rope is consistent with the direction of force, so as to prevent the traction rope from jumping off. steering wheel.

Further, the rear supporting trailer set is provided with left and right opposite traction rope limit rollers at the rear of the steering wheel, and the distance between the left and right traction rope limitation rollers is smaller than that of the steering wheel. diameter of the wheel. The traction rope limit idler can increase the wrapping angle between the traction rope and the diverting wheel, and ensure the stability of the cooperation between the traction rope and the diverting wheel.

Furthermore, the traction rope limiting rollers are arranged in left and right rows, and the left and right traction rope limiting rollers are arranged opposite to each other in an "eight" shape from the back to the front. The left and right two rows of traction rope limit rollers are arranged in an "eight" shape from the back to the front, which can follow the trend of the extension path of the traction rope itself and ensure that the traction rope is softly stressed at each traction rope limit roller.

Furthermore, the rear supporting trailer set is provided with left and right opposite uprights on the left and right sides of the steering wheel, and the distance between the left and right opposite uprights is smaller than the diameter of the steering wheel. The column with a spacing smaller than the diameter of the steering wheel can block the steering wheel when the steering wheel loosens and falls off and other emergencies, preventing the transport vehicle from slipping.

Further, the transport vehicle is a rail car, and is equipped with a corresponding transport vehicle track. Rail cars have better walking route constraints and are more stable and reliable.

Further, the material transfer device is a crane arranged on the rear supporting trailer group.

Further, the crane includes a crane beam extending in the front-rear direction and a hoisting device guided and assembled on the crane beam in the front and rear directions, and the lower part of the crane beam constitutes the intermediate index of the material. When the lower part of the crane beam extending forward and backward constitutes the index of the material, the initial position where the transport vehicle moves backward with the supporting trailer group can be arranged at the tail of the crane beam, and then the transport vehicle can follow the direction of the steering wheel during the excavation process. Move forward and move forward automatically, adapt to a certain distance, thereby saving the energy consumption of the winch.

Further, the material intermediate position is set close to the first trailer of the rear supporting trailer group, the trailer after the material intermediate position is a gantry trailer, and the middle part of the gantry trailer forms a passage for the transport vehicle to pass through. The portal trailer can be more convenient to connect with the transport vehicle.

The full-section roadheader of the present invention adopts the following technical scheme: the full-section roadheader includes a main engine and a rear supporting system, and the rear supporting system includes a rear supporting trailer group and a material transport system for transporting materials from the rear to the rear supporting trailer group , the material transport system includes a transport vehicle and a winch for controlling the movement of the transport vehicle through diverting wheels, and the rear supporting trailer set is provided with materials for transferring materials between the material transport system and the roadheader Transfer device, there is a material intermediate position between the material transfer device and the transport vehicle, and the diverting wheel is arranged on the rear supporting trailer group, located in front of the material intermediate position, so that the transport vehicle can reach Translocation in the material.

Beneficial effect: Compared with the prior art, the full-section roadheader of the present invention sets the steering wheel on the rear supporting trailer group by changing the position elements of the steering wheel of the rear supporting system, and is arranged on the indexing wheel in the material. front. When the main engine of the full-section roadheader moves forward, the position of the steering wheel will change accordingly, that is, a stable relative positional relationship can be formed between the steering wheel and the index in the material. It is no longer necessary to regularly adjust the position of the diverting wheel in the tunnel, thereby solving the problem of inconvenient use of the material transport system of the existing full-section roadheader.

Further, the steering wheel is a flat wheel, and the axis is perpendicular to the bottom of the tunnel. When the diverting wheel is set as a flat wheel, and the axis is perpendicular to the bottom of the tunnel, the vertical space occupied by the diverting wheel can be reduced, and the extension direction of the traction rope is consistent with the direction of force, so as to prevent the traction rope from jumping off. steering wheel.

Further, the rear supporting trailer set is provided with left and right opposite traction rope limit rollers at the rear of the steering wheel, and the distance between the left and right traction rope limitation rollers is smaller than that of the steering wheel. diameter of the wheel. The traction rope limit idler can increase the wrapping angle between the traction rope and the diverting wheel, and ensure the stability of the cooperation between the traction rope and the diverting wheel.

Furthermore, the traction rope limiting rollers are arranged in left and right rows, and the left and right traction rope limiting rollers are arranged opposite to each other in an "eight" shape from the back to the front. The left and right two rows of traction rope limit rollers are arranged in an "eight" shape from the back to the front, which can follow the trend of the extension path of the traction rope itself and ensure that the traction rope is softly stressed at each traction rope limit roller.

Furthermore, the rear supporting trailer set is provided with left and right opposite uprights on the left and right sides of the steering wheel, and the distance between the left and right opposite uprights is smaller than the diameter of the steering wheel. The column with a spacing smaller than the diameter of the steering wheel can block the steering wheel when the steering wheel loosens and falls off and other emergencies, preventing the transport vehicle from slipping.

Further, the transport vehicle is a rail car, and is equipped with a corresponding transport vehicle track. Rail cars have better walking route constraints and are more stable and reliable.

Further, the material transfer device is a crane arranged on the rear supporting trailer group.

Further, the crane includes a crane beam extending in the front-rear direction and a hoisting device guided and assembled on the crane beam in the front and rear directions, and the lower part of the crane beam constitutes the intermediate index of the material. When the lower part of the crane beam extending forward and backward constitutes the index of the material, the initial position where the transport vehicle moves backward with the supporting trailer group can be arranged at the tail of the crane beam, and then the transport vehicle can follow the direction of the steering wheel during the excavation process. Move forward and move forward automatically, adapt to a certain distance, thereby saving the energy consumption of the winch.

Further, the material intermediate position is set close to the first trailer of the rear supporting trailer group, the trailer after the material intermediate position is a gantry trailer, and the middle part of the gantry trailer forms a passage for the transport vehicle to pass through. The portal trailer can be more convenient to connect with the transport vehicle.

Description of drawings

1 is a schematic diagram of the use state of Embodiment 1 of the full-section roadheader of the present invention;

2 is a schematic cross-sectional view of Embodiment 1 of the full-section roadheader of the present invention at the diverting wheel;

3 is a top view of Embodiment 1 of the full-section roadheader of the present invention at the diverting wheel;

FIG. 4 is a schematic cross-sectional view of Embodiment 1 of the full-section roadheader of the present invention at the transport vehicle.

In the picture: 101, material; 11, shield body; 12, main drive; 13, cutter head; 14, rear support; 15, support system; 19, tunnel; 20, first trailer; 21, middle trailer; 22, tail trailer; 23, transport vehicle; 24, crane; 25, lifting device; 26, winch; 27, steering wheel; 28, assembly cave ; 29, traction rope; 30, transport vehicle track; 31, trailer track; 32, column; 33, traction rope limit roller.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention, that is, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present invention.

It should be noted that relational terms such as "first" and "second" that may appear are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these There is no actual relationship or order between entities or operations. Moreover, terms such as "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or apparatus that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent in such a process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." etc. does not preclude the presence of additional identical elements in the process, method, article or device that includes the element.

The features and performances of the present invention will be further described in detail below with reference to the embodiments.

Embodiment 1 of the full-section roadheader of the present invention:

As shown in Figure 1-4, the full-face roadheader includes a main engine and a rear supporting system.

The full-section roadheader in this embodiment is specifically a TBM (other embodiments can also be a shield machine), so the main engine is the main engine of the TBM, which includes a shield body 11, a main drive 12, a cutter head 13, a propulsion system, and a rear support 14. Support system 15 and anti-rolling device 16. The shield body 11 is provided with a partition, the main drive 12 is installed at the center of the partition, and the cutter head 13 is installed on the main drive 12, located in front of the partition, and forms an excavation bin with the partition. The propulsion system includes a propeller shoe 17 and a propelling oil cylinder 18. The rear support 14 is installed on the main beam, and is used for cooperating with the propeller shoe 17 to realize the step change of the roadheader during the excavation process. The support system 15 is used to support the excavated tunnel 19 . The anti-slip device 16 is installed at the rear of the propulsion system to prevent the roadheader from slipping due to factors such as gravity. The specific structure of the host is in the prior art, which is not repeated here.

The rear supporting system includes the rear supporting trailer group and the material transport system.

The rear supporting trailer group includes three trailers in this embodiment, which are referred to here as the first trailer 20 , the middle trailer 21 and the tail trailer 22 in order from front to rear. In this embodiment, both the middle trailer 21 and the tail section trailer 22 are portal trailers, and the cross section thereof is shown in FIG. 2 . The first trailer 20 and the middle trailer 21 are provided with material transfer devices, which are used to pick and place materials 101 in the rear material transportation system and forward them to the main engine of the roadheader. Since both the middle trailer 21 and the tail section trailer 22 are gantry trailers, the lower openings form a passage for the transport vehicles 23 of the material transport system to pass through.

In this embodiment, the material transfer device specifically adopts a crane 24, and the crane 24 includes a crane beam and a hoisting device. The crane beam extends along the arrangement direction of the three-section trailers, that is, in the front-rear direction. The hoisting device 25 adopts a hoist, which is guided and assembled on the crane beam along the front and rear directions, so that the lower part of the crane beam forms a material inversion position, and the transport vehicle 23 of the material transportation system can be moved to the material inversion position, and the crane can Material 101 is indexed and placed in the material.

The material transport system includes winches 26 , transport vehicles 23 and diverting wheels 27 . The winch 26 is arranged in the assembly cavity 28 of the tunnel when in use, the diverting wheel 27 is installed on the rear supporting trailer group, the transport vehicle 23 is connected with one end of the traction rope 29 of the winch 26, and the traction rope 29 passes through the diverting wheel 27. to change the extension direction. In this embodiment, the traction rope specifically adopts a steel wire rope. Of course, in other embodiments, the traction rope can also adopt a structure such as a steel chain.

In this embodiment, the transport vehicle 23 is a rail car and is equipped with a transport vehicle track 30 . The distance between the transport vehicle rails 30 of the transport vehicle 23 is smaller than the distance between the trailer rails 31 of the rear supporting trailer group, so that the transport vehicle 23 can be used in the trailer. Walk between the rails 31, and can enter the lower opening of the gantry trailer, and then reach the material transfer position.

In the present embodiment, the diverting wheel 27 is arranged on the first trailer 20. Since it is arranged on the first trailer 20, the position of the indexing position in the material can be made as far forward as possible and as close to the main engine of the roadheader as possible, thereby shortening the transfer of the material 101. the distance. The first trailer 20 is provided with a wheel frame corresponding to the steering wheel 27. The steering wheel 27 is installed in the wheel frame, and its centerline is perpendicular to the bottom of the tunnel, so it is a flat wheel. The frame of the first trailer 20 is provided with uprights 32 on the left and right sides behind the steering wheel, respectively. The diameter of the steering wheel 27 is larger than the distance between the left and right uprights, so that the left and right uprights simultaneously form the limit of the steering wheel. The position post can be used to stop the reversing wheel 27 from retreating when an emergency occurs. In order to increase the wrap angle between the traction rope 29 and the diverting wheel 27 , traction rope limiting rollers 33 are also provided on the left and right sides behind the diverting wheel 27 on the first trailer 20 . The distance between the idlers is smaller than the diameter of the diverting wheel 27 . In this embodiment, the traction rope limiting rollers 33 have left and right rows, and the two left and right rows of traction rope limiting rollers are arranged in an “eight” shape from the back to the front, which can conform to the extension path trend of the traction rope 29 itself. It is ensured that the traction rope 29 receives a gentle force at each traction rope limiting roller 33 . At the same time, the end of the traction rope 29 for connecting with the transport vehicle 23 is located in the middle of the transport vehicle track, so as to avoid pulling the transport vehicle 23 away.

In the process of using the full-section roadheader of the present invention to drive the inclined shaft, the diverting wheel 27 is then matched with the trailer group to drive forward together, and the winch 26 is equipped with a control system, which controls the rotation of the reel of the winch, and the rotation of the reel drives The retraction and release of the traction rope wound on the winch can drive the transport vehicle 23 to move up and down along the transport vehicle track 30, and at the same time, the forward movement of the roadheader will also drive the transport vehicle 23 to move forward.

Embodiment 2 of the full-section roadheader of the present invention:

In Embodiment 1 of the full-section roadheader of the present invention, the steering wheel 27 is set as a laying wheel. In this embodiment, the steering wheel is a vertical wheel, the center line of which extends along the left-right direction.

Embodiment 3 of the full-section roadheader of the present invention:

In Embodiment 1 of the full-section roadheader of the present invention, the diverting wheel 27 is set on the first trailer, so when in use, the transport vehicle can be made as close to the main engine of the roadheader as possible to reduce the transfer path of materials. In this embodiment, there are multiple intermediate trailers, and the diverting wheel can be set on any intermediate trailer, and it only needs to ensure that it is positioned in the middle of the material to meet the demand for material supply. Of course, the closer the steering wheel is to the first trailer setting, the better. In other embodiments, the winch can also be installed on the main engine of the inclined shaft and the roadheader. In this case, it is especially suitable when the excavation diameter of the roadheader is large and the space at the main engine is relatively sufficient.

Embodiment 4 of the full-section roadheader of the present invention:

In Embodiment 1 of the full-section roadheader of the present invention, the material transfer device specifically adopts a crane. In this embodiment, the material transfer device specifically adopts a robotic arm. In this case, the trailer can also not use the door structure, and the mechanical arm can grab the material from the rear of the trailer.

Embodiment 5 of the full-section roadheader of the present invention:

In Embodiment 1 of the full-section roadheader of the present invention, the transport vehicle is specifically a rail car, and in this embodiment, a general trolley that can move on the ground is used.

The embodiment of the rear supporting system of the full-section roadheader of the present invention:

The rear supporting system of the full-section roadheader may adopt the structure of the rear supporting system in any embodiment of the above-mentioned full-section roadheader, which will not be repeated here.

Claims (10)

1. Back supporting system of full-face entry driving machine, including back supporting trailer group and be used for from the material transportation system of the supporting trailer group transportation material in back, material transportation system includes transport vechicle (23) and is arranged in through bend wheel (27) control winch (26) that transport vechicle (23) removed, be equipped with on the supporting trailer group in back and be used for the material transfer device of transporting the material between material transportation system and the entry driving machine, transposition in having the material between material transfer device and transport vechicle (23), its characterized in that, bend wheel (27) are located on the supporting trailer group in back or locate the host computer of full-face entry driving machine during the use, be located the place ahead of transposition in the material, so that transport vechicle (23) can reach transposition in the material.

2. The back support system of a full face tunnel boring machine according to claim 1, wherein the redirecting wheels (27) are lay wheels with an axis perpendicular to the tunnel floor.

3. The rear mating system of the full-face tunneling machine according to claim 2, wherein a left and right traction rope limiting idler (33) is arranged on the rear mating trailer group behind the direction-changing wheel (27), and the distance between the left and right traction rope limiting idler (33) is smaller than the diameter of the direction-changing wheel (27).

4. The rear support system of the full-face tunneling machine according to claim 3, wherein the traction rope limiting supporting rollers (33) are arranged in two rows, namely left and right rows, and the left and right rows of traction rope limiting supporting rollers (33) are oppositely arranged in a splayed shape from back to front.

5. The rear support system of a full-face tunneling machine according to any one of claims 2 to 4, wherein right and left opposite uprights (32) are provided on the rear support trailer group on the right and left sides of the direction-changing wheel (27), and the distance between the right and left opposite uprights (32) is smaller than the diameter of the direction-changing wheel (27).

6. A back kit for a full face tunnel boring machine according to any one of claims 1 to 4, wherein the carriage (23) is a rail car and is provided with a corresponding carriage track (30).

7. A back support system for a full face tunnel boring machine according to any one of claims 1 to 4, wherein the material transfer device is a crane (24) provided on the back support tractor unit.

8. A back support system for a full face tunnel boring machine according to claim 7, wherein the crane (24) comprises a crane beam extending in a fore-and-aft direction and a lifting means (25) mounted on the crane beam in a fore-and-aft orientation, the lower side of the crane beam constituting the material neutral position.

9. The back mate system of a full face tunnel boring machine according to any one of claims 1 to 4, characterized in that the mid-index of material is located close to the first trailer (20) of the back mate trailer train, the trailer after mid-index of material is a gate trailer, the middle of the gate trailer forms a passage for a transport vehicle to pass through.

10. A full face tunnel boring machine comprising a main machine and a back support system, wherein the back support system is the back support system according to any one of claims 1 to 9.

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