CN109229113B

CN109229113B - Linear motor rail-driven underground magnetic suspension train

Info

Publication number: CN109229113B
Application number: CN201811054886.2A
Authority: CN
Inventors: 葛世荣; 鲍久圣; 阴妍; 马驰; 刘同冈; 魏聪; 张磊; 谢厚抗
Original assignee: China University of Mining and Technology CUMT
Current assignee: China University of Mining and Technology CUMT
Priority date: 2018-09-11
Filing date: 2018-09-11
Publication date: 2020-05-19
Anticipated expiration: 2038-09-11
Also published as: CN109229113A

Abstract

The invention discloses a linear motor track-driven underground magnetic suspension train, wherein a train head is connected with a carriage, and a train body is clamped with a ballast track through a supporting wheel and a steering wheel; the T-shaped track is arranged inside the ballast track, a T-shaped groove matched with the T-shaped track in shape is formed in the bottom of the vehicle body, the T-shaped track is located in the T-shaped groove in the bottom of the vehicle body, steering linear motors are arranged on the outer side surfaces of cross beams of the T-shaped track at intervals respectively, and driving linear motors are arranged on the lower end surfaces of the left side and the right side of the cross beams of the T-shaped track at intervals respectively; a T-shaped groove at the bottom of the vehicle body is provided with a steering electromagnet, the steering electromagnet is positioned in the outer side direction of the steering linear motor, a driving electromagnet is arranged in the T-shaped groove at the bottom of the vehicle body, and the driving electromagnet is positioned below the driving linear motor; the invention introduces the magnetic suspension driving technology into underground transportation, improves the efficiency and the climbing capability of underground rail transportation, adapts to different transportation gradients and corners, and provides advance preparation for large-capacity transportation of deep large coal mines.

Description

Linear motor rail-driven underground magnetic suspension train

Technical Field

The invention relates to a coal mine underground track transportation technology, in particular to a linear motor track driving type underground magnetic suspension train.

Background

With the continuous and steady increase of economy in China, the energy demand is continuously increased, and the status of coal as a main energy source is not changed in a short time. The large coal mine in China continuously emerges, higher requirements are put forward on the transportation capacity of the mine, and the mine transportation tends to develop towards intellectualization and unmanned direction. At the present stage, mine rail transportation mainly comprises a rail electric locomotive, a tooth rail transport vehicle, an endless rope transport vehicle and the like; the rail electric locomotive has limited power and poor climbing performance, and is mostly applied to a roadway with good ventilation; the one-time transport capacity of the toothed rail transport vehicle is limited, and the toothed rail transport vehicle is mainly used for auxiliary transport; although the endless rope transport vehicle is simple in construction and high in reliability, the transport speed is low, the endless rope transport vehicle can only be used for straight line transport, and large-angle turning cannot be realized. The steel wire rope that the inclined shaft promoted and adopted pulls the promotion, and the steel wire rope is difficult to realize the bend and promotes for the coal transportation lane must be the straight track, needs artifical flatcar and gets rid of the car, has reduced conveying efficiency. Therefore, in order to improve the transportation efficiency of the underground rail transportation, the underground rail transportation is developed to be high-speed and unmanned, and a novel rail transportation mode with high transportation speed, strong power and high automation degree is required to be provided.

The linear motor can convert electric energy into mechanical energy of linear motion, has great advantages as transportation power, and has small noise, low energy consumption and high safety, and the length of a transmission system is reduced by a direct driving mode. In the current ground transportation, a linear motor can provide a very large driving force, and the climbing slope of a train driven by the linear motor is up to 80 degrees. The linear motor driven rail train can be divided into two types of rail driving and train driving according to the driving mode. The rail driving is that a driving linear motor is arranged on the rail, and a magnet exciting coil is arranged on the train. The power supply device has the advantages that the power is supplied to the linear motor in the track in a mode of burying the power supply line under the track, the linear motor is safer from the underground explosion-proof angle, electric sparks or high-temperature environments cannot be generated, the electric quantity required by the magnet exciting coil on the train is small, and the power utilization requirement can be met by using the explosion-proof storage battery for power supply. The rail-driven train is usually in a magnetic suspension type, because the linear motor can additionally provide a repulsive force while providing a forward driving force, the train is suspended in the air during operation. The magnetic suspension eliminates the frictional resistance between the wheels and the track, greatly improves the transportation speed, and can remotely control the running of the train through the ground control station when the ground stator coil on the track supplies power to realize the unmanned running of the train. The rail train of this type is great in construction cost earlier stage, is applicable to the long, big underground transportation environment of transportation volume of transportation distance.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a linear motor track-driven underground magnetic suspension train, which improves the underground track transportation efficiency and climbing capability and is suitable for different transportation gradients and corners.

In order to achieve the purpose, the invention adopts the technical scheme that: a linear motor track-driven underground maglev train comprises a train body, a T-shaped track and a ballast track, wherein the train body consists of a train head and a carriage, the train head and the carriage are connected through a connecting hook, the ballast track is laid in a roadway, a supporting wheel is arranged on the inner side surface of the bottom of the train body, a steering wheel is arranged on the bottom end surface of the train body, the wheel surface of the supporting wheel is perpendicular to the surface of the roadway, the wheel surface of the steering wheel is parallel to the surface of the roadway, the train body is clamped with the ballast track through the supporting wheel and the steering wheel, and a disc brake is arranged on; the T-shaped track is arranged in the middle of the inside of the ballast track, a T-shaped groove matched with the T-shaped track in shape is formed in the bottom of the vehicle body, the T-shaped track is located in the T-shaped groove in the bottom of the vehicle body, steering linear motors are arranged on the outer side surfaces of cross beams of the T-shaped track at intervals respectively, and driving linear motors are arranged on the lower end surfaces of the left side and the right side of the cross beams of the T-shaped track at intervals respectively; a T-shaped groove at the bottom of the vehicle body is provided with a steering electromagnet, the steering electromagnet is positioned in the outer side direction of the steering linear motor, a driving electromagnet is arranged in the T-shaped groove at the bottom of the vehicle body, and the driving electromagnet is positioned below the driving linear motor; an explosion-proof storage battery and a power supply controller are respectively arranged in the vehicle head and each carriage, the explosion-proof storage battery is electrically connected with the power supply controller, and the power supply controller is electrically connected with the steering electromagnet and the driving electromagnet; the operation controller is arranged in the roadway, the power supply line is buried below the ground surface of the roadway along the paving direction of the ballast track, and the power supply line supplies power to the track section through the power supply switch.

Furthermore, the connecting hook is of an electromagnetic lock structure.

Furthermore, the front end of the vehicle head is provided with a connecting hook.

Compared with the prior art, the invention introduces the magnetic suspension driving technology into underground transportation, improves the efficiency and the climbing capability of underground rail transportation, adapts to different transportation slopes and corners, and prepares for large-capacity transportation of deep large coal mines.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a front elevational view of the present invention;

in the figure: 1. a train operation controller; 2. a power supply line; 3. a power supply switch; 4. a headstock; 5. connecting a hook; 6. loading and transporting a carriage; 7. an explosion-proof storage battery; 8. a power supply controller; 9. a T-shaped track; 10. a support wheel; 11. a disc brake; 12. a ballast track; 13. a steering wheel; 14. driving a linear motor; 15. a steering linear motor; 16. a steering electromagnet; 17. the electromagnet is driven.

Detailed Description

The invention will be further explained with reference to the drawings.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, the linear motor track-driven underground maglev train comprises a train body, a T-shaped track 9 and a ballast track 12, wherein the train body comprises a train head 4 and a train carriage 6, the train head 4 and the train carriage 6 are connected through a connecting hook 5, and the ballast track 12 is laid in a roadway;

the inner side surface of the bottom of the vehicle body is provided with a supporting wheel 10, the bottom end surface of the vehicle body is provided with a steering wheel 13, the wheel surface of the supporting wheel 10 is vertical to the surface of a roadway, the wheel surface of the steering wheel 13 is parallel to the surface of the roadway, the vehicle body is clamped with a ballast track 12 through the supporting wheel 10 and the steering wheel 13, the supporting wheel 10 is responsible for supporting the weight of the whole vehicle body, the steering wheel 13 provides a steering centripetal force for the vehicle body during steering, and a disc brake 11 is arranged on the supporting wheel 10;

the T-shaped track 9 is arranged in the middle of the inside of the ballast track 12, a T-shaped groove matched with the T-shaped track 9 in shape is formed in the bottom of the vehicle body, the T-shaped track 9 is located in the T-shaped groove in the bottom of the vehicle body, steering linear motors 15 are arranged on the outer side surfaces of cross beams of the T-shaped track 9 at intervals respectively, and driving linear motors 14 are arranged on the lower end surfaces of the left side and the right side of the cross beams of the T-shaped track 9 at intervals respectively;

a steering electromagnet 16 is arranged in a T-shaped groove at the bottom of the vehicle body, the steering electromagnet 16 is positioned in the outer side direction of a steering linear motor 15, a driving electromagnet 17 is arranged in the T-shaped groove at the bottom of the vehicle body, and the driving electromagnet 17 is positioned below a driving linear motor 14;

an explosion-proof storage battery 7 and a power supply controller 8 are respectively arranged in the locomotive 4 and each carriage 6, the explosion-proof storage battery 7 is electrically connected with the power supply controller 8, the power supply controller 8 is electrically connected with the steering electromagnet 16 and the driving electromagnet 17, and the explosion-proof storage battery 7 supplies power to the driving electromagnet 17 and the steering electromagnet 16 under the control of the power supply controller 8 to enable the driving electromagnet 17 and the steering electromagnet 16 to generate magnetism;

the operation controller 1 is arranged in a roadway, a power supply line 2 is buried below the ground surface of the roadway along the paving direction of a ballast track 12, the power supply line 2 supplies power to a track section through a power supply switch 3, when a train runs to the position above the track, the power supply switch 3 is closed, and when the train runs away, the power supply switch 3 is disconnected; the rail power supply supplies power to a power station to supply power to a train operation controller 1, and then supplies power to a linear motor on the rail through a power supply line 2 and a power supply switch 3 buried under the ground of the rail to supply power for the train to move forward. The operation controller 1 and the power supply switch 3 can be controlled to be switched on and off at a platform arranged at a fixed position, so that unmanned driving of the train is realized.

One group of trains can be connected with the carriages 6 behind the other group of trains through the connecting hooks 5 at the front ends of the train heads 4 so as to realize the combined operation of a plurality of groups of trains; the connecting hook 5 can be closed or disconnected by an electromagnetic lock, and the connection or the separation of the train can be remotely controlled on the train operation command station.

And (3) a driving process: after the power is switched on, magnetic field force is generated between the driving linear motor 14 and the steering linear motor 15 on the track and the driving electromagnet 17 and the steering electromagnet 16 which are installed on the train respectively, and the magnetic field force is used as power for driving the train to move forwards.

The operation mode is as follows: the train operation mode comprises a suspension mode and a non-suspension mode. In the suspension mode, not only forward driving electromagnetic force but also repulsive electromagnetic force are generated between the driving linear motor 14 and the driving electromagnet 17, so that the train operates in a suspension manner, and the support wheel 10 is separated from the ballast track 12; in the non-suspension mode, the electromagnetic force generated between the driving linear motor 14 and the driving electromagnet 17 is small, and the support wheel 10 is still on the ballast track 12. The supporting wheels 10 and the steering wheels 13 are elastically connected, so that the position can be elastically adjusted when the train is separated from or contacts the ballast track 12, and the operation safety is guaranteed. The levitating mode is used for high speed operation and the non-levitating mode is used for low speed operation.

Turning: in the suspension mode, the repulsive force between the steering linear motor 15 and the steering electromagnet 16 provides steering force, the relative position of the train and the track is measured through a distance sensor, and the magnitude of the repulsive force is adjusted, so that the train is always in the center of the track; in the non-levitation mode, the steering linear motor 15 and the steering wheel 13 provide a steering force together.

And (3) braking process: when the train needs braking, the driving linear motor 14 and the steering linear motor 15 respectively provide braking force with the driving electromagnet 17 and the steering electromagnet 16 which are arranged on the train in an electromagnetic braking mode and recover energy, and the disc brake 11 which is arranged on the supporting wheel in a non-suspension mode provides auxiliary braking force.

And (3) emergency braking process: when an emergency condition or a train is monitored, the driving linear motor 14 and the steering linear motor 15 immediately provide a reverse force to ensure that the train stops stably; the disc brake 11 is in a braking state in a normal state, when the train moves forward, the disc brake is regulated to enter a non-braking state through the electromagnetic valve, and when the train is in an emergency state such as power failure and the like and needs to be stopped suddenly, the disc brake 11 automatically enters the braking state due to the loss of electromagnetic force, so that the safety of train transportation is ensured.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any minor modifications, equivalent replacements and improvements made to the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a linear electric motor track drive formula magnetic levitation train in pit, includes automobile body, T type track (9) and has tiny fragments of stone, coal, etc. track (12), the automobile body comprises locomotive (4), carriage (6), and locomotive (4) and carriage (6) are connected through connecting couple (5), have tiny fragments of stone, coal, etc. track (12) to lay in the tunnel, its characterized in that:

the inner side surface of the bottom of the vehicle body is provided with a supporting wheel (10), the bottom end surface of the vehicle body is provided with a steering wheel (13), the wheel surface of the supporting wheel (10) is vertical to the surface of the roadway, the wheel surface of the steering wheel (13) is parallel to the surface of the roadway, the vehicle body is clamped with the ballast track (12) through the supporting wheel (10) and the steering wheel (13), and the supporting wheel (10) is provided with a disc brake (11);

the T-shaped track (9) is arranged in the middle of the interior of the ballast track (12), a T-shaped groove matched with the T-shaped track (9) in shape is formed in the bottom of the vehicle body, the T-shaped track (9) is located in the T-shaped groove in the bottom of the vehicle body, steering linear motors (15) are arranged on the left outer side surface and the right outer side surface of a cross beam of the T-shaped track (9) at intervals respectively, and driving linear motors (14) are arranged on the lower end surfaces of the left side and the right side of the cross beam of the T-shaped;

a steering electromagnet (16) is arranged in a T-shaped groove at the bottom of the vehicle body, the steering electromagnet (16) is positioned at the outer side direction of a steering linear motor (15), a driving electromagnet (17) is arranged in the T-shaped groove at the bottom of the vehicle body, and the driving electromagnet (17) is positioned below a driving linear motor (14);

an explosion-proof storage battery (7) and a power supply controller (8) are respectively arranged in the locomotive (4) and each carriage (6), the explosion-proof storage battery (7) is electrically connected with the power supply controller (8), and the power supply controller (8) is electrically connected with a steering electromagnet (16) and a driving electromagnet (17);

the operation controller (1) is arranged in a roadway, the power supply line (2) is buried below the ground surface of the roadway along the laying direction of the ballast track (12), and the power supply line (2) supplies power to a track section through the power supply switch (3).

2. A linear motor track driven underground maglev train according to claim 1, wherein the coupling hook (5) is of an electromagnetic lock structure.

3. The linear motor rail-driven underground magnetic levitation train as recited in claim 1, wherein the front end of the locomotive (4) is provided with a connecting hook (5).