CN113524994B - Four-wheel independent steering driving railway vehicle - Google Patents
Four-wheel independent steering driving railway vehicle Download PDFInfo
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- CN113524994B CN113524994B CN202110975517.2A CN202110975517A CN113524994B CN 113524994 B CN113524994 B CN 113524994B CN 202110975517 A CN202110975517 A CN 202110975517A CN 113524994 B CN113524994 B CN 113524994B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
- B60F1/00—Vehicles for use both on rail and on road; Conversions therefor
- B60F1/04—Vehicles for use both on rail and on road; Conversions therefor with rail and road wheels on different axles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/42—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for being adjustable
- B60D1/46—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for being adjustable vertically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
- B60F1/00—Vehicles for use both on rail and on road; Conversions therefor
- B60F1/005—Vehicles for use both on rail and on road; Conversions therefor with guiding elements keeping the road wheels on the rails
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G7/00—Details or accessories
- B61G7/08—Adjustable coupling heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0421—Electric motor acting on or near steering gear
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a four-wheel independent steering drive railway car, which comprises: a chassis; the road traveling module comprises four steering traveling assemblies, each steering traveling assembly comprises a wheel, a rotating frame, a traction motor and a rotating motor, the wheels are arranged on the rotating frames through axles, the traction motors are arranged on the rotating frames and are in transmission connection with the axles, the rotating frames are rotatably arranged on a chassis of the vehicle, and the rotating motors are arranged on the chassis of the vehicle and are used for driving the rotating frames to rotate; the railway walking module comprises two guide assemblies, each guide assembly comprises a lifting mechanism, a lifting frame, a wheel shaft and two guide wheels, the guide wheels are arranged at the end parts of the wheel shafts, the wheel shafts are arranged on the lifting frames, the lifting frames are slidably arranged at the corresponding end parts of the chassis, and the lifting mechanisms are arranged on the chassis and used for driving the lifting frames to slide up and down. The turning radius of the four-wheel independent steering drive railway vehicle is reduced, so that the trafficability of the four-wheel independent steering drive railway vehicle is improved.
Description
Technical Field
The invention relates to the technical field of rail cars, in particular to a four-wheel independent steering drive rail car.
Background
At present, the dual-purpose vehicle for railway and road can not only run on the road, but also run on the railway, so that the dual-purpose vehicle for railway and road is widely applied to the rail transportation industry, and the dual-purpose vehicle for railway and road is generally used for the operations of railway traction, rush repair, construction, emergency rescue and the like. For example: chinese patent publication No. CN 204506372U discloses a railway car, which uses a conventional car as a main body and is provided with guide wheels for railway running. The automobile is limited by the structure of the automobile, the front wheel of the automobile needs to be rotated when the automobile turns, and the whole length of the automobile is longer, so that the turning radius is larger and the trafficability characteristic is poorer. How to design a vehicle with a reduced turning radius to improve trafficability is a technical problem to be solved by the invention.
Disclosure of Invention
The invention provides a four-wheel independent steering drive railway vehicle, which can reduce the turning radius of the four-wheel independent steering drive railway vehicle so as to improve the trafficability of the four-wheel independent steering drive railway vehicle.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a four-wheel independent steering drive railway vehicle, which comprises:
the vehicle comprises a vehicle chassis, wherein a cab is arranged on the vehicle chassis;
the road walking module comprises four steering walking components, the four steering walking components are distributed at four corners of a chassis, each steering walking component comprises a wheel, a rotating frame, a traction motor and a rotating motor, the wheels are arranged on the rotating frames through axles, the traction motors are arranged on the rotating frames and are in transmission connection with the axles, the rotating frames are rotatably arranged on the chassis, and the rotating motors are arranged on the chassis and are used for driving the rotating frames to rotate;
the railway walking module comprises two guide assemblies, each guide assembly comprises a lifting mechanism, a lifting frame, a wheel shaft and two guide wheels, the guide wheels are arranged at the end parts of the wheel shafts, the wheel shafts are arranged on the lifting frames, the lifting frames are slidably arranged at the corresponding end parts of the chassis, and the lifting mechanisms are arranged on the chassis and are used for driving the lifting frames to slide up and down.
Furthermore, a main gear is arranged on the rotating motor, a pinion is arranged on the rotating frame, and the main gear is meshed with the pinion.
Furthermore, the lifting mechanism comprises two guide oil cylinders which are vertically arranged side by side; the crane comprises two sliding rods, the end part of the chassis is also provided with two vertically arranged sliding sleeves, the sliding rods are arranged in the corresponding sliding sleeves in a sliding mode, the upper end parts of the sliding rods are connected with the corresponding piston rods of the guide oil cylinders, and the wheel shafts are arranged between the two sliding rods.
Further, the cab is detachably mounted on the chassis.
Furthermore, car couplers are respectively arranged at two end parts of the car chassis.
Furthermore, two end parts of the chassis are respectively provided with a height adjusting mechanism, each height adjusting mechanism comprises a mounting seat, a guide rail and a driving part, the guide rails are vertically arranged on the chassis, the mounting seats are slidably arranged on the guide rails, the driving parts are used for driving the mounting seats to slide up and down, and the car coupler is arranged on the mounting seats.
Furthermore, the driving part comprises a screw rod, a threaded hole is formed in the mounting base, the screw rod is rotatably arranged on the chassis, and the screw rod is in threaded connection with the threaded hole.
Compared with the prior art, the technical scheme of the invention has the following technical effects: through configuring four independent drive and the walking subassembly that turns to that can turn to automatically, at the actual in-process of traveling, can carry out the turn of minor radius as required, can also transversely travel or pivot to satisfy the operation requirement in narrow and small space, realize reducing the turn radius of four-wheel independent steering drive railway car, in order to improve the trafficability characteristic of four-wheel independent steering drive railway car.
Drawings
FIG. 1 is a schematic structural view of a four-wheel independent steering drive railway vehicle according to the present invention;
FIG. 2 is a schematic structural view of a steering and traveling assembly of the four-wheel independent steering drive railway vehicle according to the present invention;
FIG. 3 is a schematic structural view of a steering assembly in the four-wheel independent steering drive railcar according to the present invention;
FIG. 4 is a schematic structural view of a height adjustment mechanism in the four-wheel independent steering drive road-rail vehicle of the present invention;
FIG. 5 is a schematic diagram of the brake mechanism in the four-wheel independent steering drive railcar of the present invention.
Reference numerals:
a chassis 1;
a cab 11, a sliding sleeve 12;
a steering and walking component 2;
the device comprises wheels 21, a rotating frame 22, a traction motor 23, a rotating motor 24, a main gear 25 and a pinion 26;
a guide assembly 3;
the lifting mechanism 31, the lifting frame 32, the wheel shaft 33 and the guide wheel 34;
a guide cylinder 311, a slide rod 321;
a coupler 4;
a height adjusting mechanism 5;
a mounting base 51, a guide rail 52, a driving member 53;
a brake mechanism 6;
an electric brake controller 61, an electric regenerative brake 62, an electromagnetic brake 63, and an eddy current brake 64;
and a wireless communication module 7.
Detailed Description
In a first embodiment, as shown in fig. 1 to 4, the present invention provides a four-wheel independent steering drive railway vehicle, including:
the vehicle comprises a vehicle chassis 1, wherein a cab 11 is arranged on the vehicle chassis 1;
the road walking module comprises four steering walking components 2, the four steering walking components 2 are distributed at four corners of a chassis 1, each steering walking component 2 comprises a wheel 21, a rotating frame 22, a traction motor 23 and a rotating motor 24, the wheels 21 are arranged on the rotating frames 22 through axles, the traction motors 23 are arranged on the rotating frames 22 and are in transmission connection with the axles, the rotating frames 22 are rotatably arranged on the chassis 1, and the rotating motors 24 are arranged on the chassis 1 and are used for driving the rotating frames 22 to rotate;
the railway running module comprises two guide assemblies 3, each guide assembly 3 comprises a lifting mechanism 31, a lifting frame 32, a wheel shaft 33 and two guide wheels 34, the guide wheels 34 are arranged at the end parts of the wheel shafts 33, the wheel shafts 33 are arranged on the lifting frames 32, the lifting frames 32 can be slidably arranged at the corresponding end parts of the vehicle chassis 1, and the lifting mechanisms 31 are arranged on the vehicle chassis 1 and used for driving the lifting frames 32 to slide up and down.
Particularly, this embodiment four-wheel independent steering drive railway carriage is disposed four and is turned to running gear 2 on chassis 1, and four are turned to running gear 2 and can independently go and turn to, like this, in the use, through adjusting four turned angle who turns to running gear 2, alright realize the turn of arbitrary angle, and then reduce turning radius. Meanwhile, the transverse translation or the in-situ rotation can be realized according to the requirement.
The railway running module drives the lifting frame 32 to move downwards through the lifting mechanism 31, so that the guide wheels 34 abut against the steel rails, and the requirement of railway running is met.
Further, in order to control the rotation of the wheel 21, a main gear 25 may be provided on the rotation motor 24, and a sub-gear 26 may be provided on the turret 22, wherein the main gear 25 is engaged with the sub-gear 26. Specifically, the rotation motor 24 drives the main gear 25 to rotate, and further drives the sub-gear 26 to rotate through the main gear 25, and the sub-gear 26 will drive the rotating rack 22 to rotate, so as to adjust the rotation angle of the wheel 21.
Further, the lifting mechanism 31 includes two guide cylinders 311 arranged vertically side by side; the lifting frame 32 comprises two sliding rods 321, the end part of the chassis 1 is also provided with two vertically arranged sliding sleeves 12, the sliding rods 321 are slidably arranged in the corresponding sliding sleeves 12, the upper end parts of the sliding rods 321 are connected with the piston rods of the corresponding guide oil cylinders 311, and the wheel shaft 33 is arranged between the two sliding rods 321.
Specifically, in order to make the guide wheels 34 at the two end portions of the axle rise and fall smoothly, two guide cylinders 311 arranged side by side may be disposed on the chassis 1, and the guide cylinders 311 may drive the sliding rod 321 to slide up and down smoothly in the sliding sleeve 12, so as to drive the guide wheels 34 to move up and down through the wheel axle 33.
Based on the technical scheme, optionally, two end parts of the chassis 1 are respectively provided with a car coupler 4.
In particular, the coupler 4 on the chassis 1 can draw the vehicles on the road or the railway according to the requirements. Preferably, in order to meet the use requirements of different vehicles to be towed, the two end parts of the chassis 1 are respectively provided with a height adjusting mechanism 5, the height adjusting mechanisms 5 comprise mounting seats 51, guide rails 52 and driving parts 53, the guide rails 52 are vertically arranged on the chassis 1, the mounting seats 51 are slidably arranged on the guide rails 52, the driving parts 53 are used for driving the mounting seats 51 to slide up and down, and the coupler 4 is arranged on the mounting seats 51.
Specifically, the coupler 4 is mounted on the mounting seat 51, and the driving part 53 drives the mounting seat 51 to move up and down to adjust the height position of the coupler 4, so as to meet the traction requirements of vehicles with different heights. The driving part 53 comprises a screw rod, a threaded hole is formed in the mounting base 51, the screw rod is rotatably arranged on the chassis 1, and the screw rod is in threaded connection with the threaded hole. The height of the car coupler 4 can be adjusted, coupling with vehicles with different heights of passenger cars, motor cars and metro vehicles is achieved, in addition, the car coupler 4 is detachably mounted on the mounting seat 51, and therefore the car coupler 4 of each car type can be conveniently mounted and dismounted, and exchange functions are achieved.
In another embodiment, the cab 11 is detachably mounted on the chassis 1 in order to meet the use requirements of different working conditions. Specifically, the cab 11 is of a modular design and is mounted on the chassis 1 by means of a detachable connection such as bolts.
In the second embodiment, based on the first embodiment, as shown in fig. 5, since the four-wheel independent steering drive railway vehicle uses electric energy as driving force, in order to recover the electric energy, a power battery (not shown) may be disposed on the chassis 1, and similarly, in order to reduce energy consumption, improve braking performance, and reduce maintenance cost, the four-wheel independent steering drive railway vehicle further includes a brake mechanism 6, the brake mechanism 6 includes an electric brake controller 61, a plurality of electric regenerative brakes 62 and a plurality of electromagnetic brakes 63, the electric regenerative brakes 62 are disposed on the corresponding traction motors 23, the electromagnetic brakes 63 are disposed on the corresponding axles, and the electric regenerative brakes 62 and the electromagnetic brakes 63 are respectively electrically connected to the electric brake controller 61; the power battery is used for supplying power to the traction motor 23 and the electromagnetic brake 63, and the electric regenerative brake 62 is also used for charging the power battery.
Specifically, the four-wheel independent steering drive railway car needs to be braked as needed during running, and when braking is needed, the electric brake controller 61 controls the electric regenerative brake 62 and the electromagnetic brake 63 to operate, the electric regenerative brake 62 performs power generation braking by utilizing the inertial rotation of the traction motor 23, and the electromagnetic brake 63 performs electric axle-holding braking on the wheel axle 33 as supplement of the electric regenerative braking force.
Further, the four-wheel independent steering drive railway wagon further comprises an eddy current brake 64, the eddy current brake 64 is arranged on the wagon chassis 1, the eddy current brake 64 is electrically connected with the electric brake controller 61, and the power battery is further used for supplying power to the eddy current brake 64.
Specifically, when the electromagnetic brake 63 and the electric regenerative brake 62 both reach the maximum braking force, the eddy current brake 64 can be activated, the electric brake controller 61 controls the eddy current brake 64 to be electrified to generate a magnetic field, the steel rail is in a changing magnetic field and a relative moving magnetic field, and the magnetic flux passing through any loop of the steel rail is changed to generate the eddy current braking force.
The electromagnetic brake 63 is in a braking state when the power is off, so that the requirement of parking braking can be met in a parking state.
In addition, a wheel speed sensor (not shown) for detecting the rotation speed of the wheel 21 at the corresponding position is also provided for each wheel 21. Specifically, the wheel speed sensor detects speed signals corresponding to the wheels 21, and the electric brake controller 61 then performs dynamic adjustment of braking torque based on these signals, such as speed difference, deceleration, and traction load, to prevent the wheels from being locked and scratched.
The further four-wheel independent steering drive railway vehicle further comprises a wireless communication module 7, and the wireless communication module 7 is electrically connected with the electric brake controller 61.
Specifically, because the electric brake mode is adopted, a control signal can be sent to the electric brake controller 61 in a remote control mode so as to realize remote control braking.
The brake mode comprises the following brake modes:
1) In the normal service running braking mode, when a traction vehicle works, in order to control the speed of traction work, the wireless remote control system sends out an electric regenerative braking instruction, the electric brake controller controls the electric regenerative brake to realize regenerative braking speed regulation, the regenerative braking energy charges a power battery, and the braking force is controlled by the electric brake handle position of the wireless remote control system; the braking speed and the braking force are transmitted to the display screen of the remote controller through wireless transmission. The electric brake controller can automatically calculate a target electric brake force value according to the current speed and traction load conditions of the traction operation vehicle, and the magnitude of the brake force can be different when the traction load is different in the same regenerative brake handle position, so that the dynamic adjustment control of the brake force is realized. When the electric regenerative braking energy charges the power battery, the electric regenerative brake controls that when the voltage and the residual capacity of the power battery pack reach the highest limit, the redundant braking energy is consumed on the braking resistor.
2) In the parking braking mode, the electric braking controller controls the electric regenerative brake to realize regenerative braking speed regulation and charge the power storage battery; meanwhile, the electric brake controller controls the electromagnetic brake to work, and the electromagnetic brake realizes electric shaft-holding brake through electromagnetic clutch to supplement electric regenerative braking force; when the tractor is stopped and braked, the electric regenerative braking force and the electromagnetic brake braking force are the maximum values.
3) And a rapid braking mode, wherein rapid braking is a braking action taken to enable the safety coefficient of traction operation braking to reach the maximum value. When rapid braking is applied, the electric regenerative brake and the electromagnetic brake are operated at full load. When the electric regenerative brake is used for quickly braking, the electric brake controller controls the electric regenerative brake and the electromagnetic brake to jointly act, speed signals of the wheel speed sensor are monitored, and then the dynamic adjustment of braking torque is carried out according to the speed difference, the deceleration and the traction load of the signals corresponding to different wheels, so that the wheels are prevented from being locked and scratched.
4) In the short-time parking braking mode, when the vehicle needs to be dispatched for braking in the short-time parking mode, the tractor is subjected to zero-speed electric locking control through the electric regenerative brake; the electric brake controller monitors a speed signal of the wheel speed sensor, controls the electric regenerative brake to automatically apply zero-speed self-locking torque, and realizes electric parking brake (a hand brake or an electronic hand brake system is not required to be configured on a vehicle); the zero-speed locking brake can ensure that the vehicle does not slide when the vehicle is stopped, braked and restarted on a slope, and the safety during traction operation is improved.
5) And in the long-term parking braking mode of the vehicle, when the traction vehicle needs to be parked for a long time, the power supply of the tractor is cut off, the electromagnetic brake is powered off, and the automatic axle-clasping realizes the long-term parking braking of the vehicle.
6) In the emergency braking mode, when the load of a tractor traction vehicle meets an emergency, the electric brake controller receives emergency braking information of the remote controller, controls the electric regenerative brake to realize the maximum regenerative braking force and simultaneously charges the power battery; controlling an electromagnetic brake to realize the brake of the maximum electric axle-clasping brake force; the electric brake controller controls the current vortex brake to generate a magnetic field, the steel rail is positioned in the changing magnetic field and the magnetic field which moves relatively, and the magnetic flux passing through any loop of the steel rail changes to generate the current vortex brake force. Once the emergency brake is applied, the control circuit of the emergency brake safety circuit can ensure that the emergency brake remains applied until the train is completely stopped. When the infinite remote controller reset button is pressed and an excitation source for triggering emergency braking and an emergency braking instruction of the electric braking device are eliminated, the emergency braking can be relieved. The anti-lock function remains active during emergency braking, the application of which is irreversible.
7) In the anti-impact braking mode, when the tractor pulls different vehicle loads, in order to avoid generating braking impact, the electric braking device can automatically adjust the braking level according to the load, the braking is smooth and adjustable, and the output of the braking force is in a slow ascending/descending type, so that the braking safety is ensured, and the optimal anti-impact braking is realized. For the specific process of adjusting the braking level, reference may be made to a conventional mechanical braking manner, which is not described or limited herein.
Compared with the prior art, the technical scheme of the invention has the following technical effects: through configuring four independent drive and the walking subassembly that turns to that can turn to automatically, at the actual in-process of traveling, can carry out the turn of minor radius as required, can also transversely travel or pivot to satisfy the operation requirement in narrow and small space, realize reducing the turn radius of four-wheel independent steering drive railway car, in order to improve the trafficability characteristic of four-wheel independent steering drive railway car.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a four-wheel independent steering drive railcar which characterized in that includes:
the vehicle comprises a vehicle chassis, wherein a cab is arranged on the vehicle chassis;
the road walking module comprises four steering walking components, the four steering walking components are distributed at four corners of a chassis, each steering walking component comprises a wheel, a rotating frame, a traction motor and a rotating motor, the wheels are arranged on the rotating frames through axles, the traction motors are arranged on the rotating frames and are in transmission connection with the axles, the rotating frames are rotatably arranged on the chassis, and the rotating motors are arranged on the chassis and are used for driving the rotating frames to rotate;
the railway running module comprises two guide assemblies, each guide assembly comprises a lifting mechanism, a lifting frame, a wheel shaft and two guide wheels, the guide wheels are arranged at the end parts of the wheel shafts, the wheel shafts are arranged on the lifting frames, the lifting frames are slidably arranged at the corresponding end parts of the chassis of the vehicle, and the lifting mechanisms are arranged on the chassis of the vehicle and are used for driving the lifting frames to slide up and down;
the four-wheel independent steering drive railway wagon further comprises a brake mechanism, wherein the brake mechanism comprises an electric brake controller, a plurality of electric regenerative brakes, a plurality of electromagnetic brakes and an eddy current brake, the electric regenerative brakes are arranged on the corresponding traction motors, the electromagnetic brakes are arranged on the corresponding axles, the electric regenerative brakes and the electromagnetic brakes are respectively and electrically connected with the electric brake controller, the eddy current brake is arranged on the chassis, and the eddy current brake is electrically connected with the electric brake controller; a power battery is arranged on the chassis and used for supplying power to the eddy current brake;
the four-wheel independent steering drive railway wagon has the following braking modes:
under a common service driving braking mode, the electric braking controller controls the electric regenerative brake to realize regenerative braking speed regulation, and the regenerative braking energy is used for charging the power battery; the electric brake controller automatically calculates a target electric brake force value according to the current speed and traction load conditions of the traction operation vehicle; when the electric regenerative braking energy charges the power battery, the electric regenerative brake controls that when the voltage and the residual capacity of the power battery pack reach the highest limit, the redundant braking energy is consumed on the braking resistor;
under the parking braking mode, the electric braking controller controls the electric regenerative brake to realize regenerative braking speed regulation and charge the power storage battery; meanwhile, the electric brake controller controls the electromagnetic brake to work, and the electromagnetic brake realizes electric axle-hung brake through electromagnetic clutch as supplement of electric regenerative braking force; when the tractor is stopped and braked, the electric regenerative braking force and the electromagnetic brake braking force are the maximum values;
under the rapid braking mode, the electric regenerative brake and the electromagnetic brake run at full load, the electric brake controller controls the electric regenerative brake and the electromagnetic brake to act together, meanwhile, the speed signal of the wheel speed sensor is monitored, and then the dynamic adjustment of braking torque is carried out according to the speed difference, the deceleration and the traction load of the signals corresponding to different wheels, so as to prevent the wheels from being locked and scratched;
under the short-time parking braking mode, when four-wheel independent steering drive railway cars and railway cars need to be dispatched for short-time parking braking, the speed signal of a wheel speed sensor is monitored in real time through an electric braking controller, an electric regenerative brake is controlled to automatically apply zero-speed self-locking torque, and electric parking braking is realized;
under a long-term parking braking mode of the vehicle, when the four-wheel independent steering driving rail-road vehicle needs to be parked for a long time, the power supply of the tractor is cut off, and the electromagnetic brake is powered off to automatically hold the axle to realize long-term parking braking of the vehicle;
under the emergency braking mode, when the load of the four-wheel independent steering drive railway vehicle meets emergency, the electric brake controller receives emergency braking information, controls the electric regenerative brake to realize maximum regenerative braking force and simultaneously charges a power battery; the electric brake controller controls the current vortex brake to be electrified to generate a magnetic field, the steel rail is positioned in the changing magnetic field and the magnetic field which moves relatively, and the magnetic flux passing through any loop of the steel rail changes to generate the current vortex brake force;
under the anti-impact braking mode, when four wheels independently turn to drive the railway car to pull different vehicle loads, the electric braking controller automatically adjusts the braking level according to the load.
2. A four-wheel independent steering drive railcar according to claim 1, wherein said rotating motor is provided with a main gear, said turret is provided with a pinion, and said main gear is engaged with said pinion.
3. A four-wheel independent steering drive railcar according to claim 1, wherein said lifting mechanism comprises two guide cylinders arranged vertically side by side; the crane comprises two sliding rods, the end part of the chassis is also provided with two vertically arranged sliding sleeves, the sliding rods are arranged in the sliding sleeves in a sliding manner, the upper ends of the sliding rods are connected with the corresponding piston rods of the guide oil cylinders, and the wheel shafts are arranged between the two sliding rods.
4. A four-wheel independent steering drive railcar according to claim 1, wherein said cab is detachably mounted on said chassis.
5. A four-wheel independent steering drive railcar according to any one of claims 1 to 4, wherein both ends of the chassis are provided with a coupler, respectively.
6. The four-wheel independent steering drive railcar according to claim 5, wherein the two end portions of the chassis are respectively provided with a height adjusting mechanism, the height adjusting mechanism comprises a mounting seat, a guide rail and a driving part, the guide rail is vertically arranged on the chassis, the mounting seat is slidably arranged on the guide rail, the driving part is used for driving the mounting seat to slide up and down, and the coupler is arranged on the mounting seat.
7. The four-wheel independent steering drive rail car according to claim 6, wherein the driving part comprises a screw rod, a threaded hole is formed in the mounting seat, the screw rod is rotatably arranged on the car chassis, and the screw rod is in threaded connection with the threaded hole.
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| CN202110975517.2A CN113524994B (en) | 2021-08-24 | 2021-08-24 | Four-wheel independent steering driving railway vehicle |
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| CN202110975517.2A CN113524994B (en) | 2021-08-24 | 2021-08-24 | Four-wheel independent steering driving railway vehicle |
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| CN113524994A CN113524994A (en) | 2021-10-22 |
| CN113524994B true CN113524994B (en) | 2023-02-10 |
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| DE19752859C1 (en) * | 1997-11-28 | 1999-06-02 | Zweiweg Schneider Gmbh & Co Kg | Road-rail motor vehicle |
| CN205601529U (en) * | 2016-04-14 | 2016-09-28 | 哈尔滨铁路局工业总公司内燃机械厂 | Four -wheel individual drive turns to electronic combined car |
| CN106080810A (en) * | 2016-08-16 | 2016-11-09 | 常州市瑞泰工程机械有限公司 | The combined tractor of accumulator |
| CN205930079U (en) * | 2016-08-27 | 2017-02-08 | 大连铁丰轨道交通装备有限责任公司 | Combined tractor of independent 4 wheel driven |
| CN108839527A (en) * | 2018-08-22 | 2018-11-20 | 大连铁丰轨道交通装备有限责任公司 | Independent driving rail-road road double duty tractor |
| CN109094309A (en) * | 2018-08-22 | 2018-12-28 | 大连铁丰轨道交通装备有限责任公司 | Combined storage battery tractor |
| CN109455046A (en) * | 2018-11-20 | 2019-03-12 | 株洲时代电子技术有限公司 | A kind of road rail vehicle rail guiding device |
| CN210502138U (en) * | 2019-07-29 | 2020-05-12 | 武汉拓帆轨道交通科技股份有限公司 | Walking steering system and highway-railway dual-purpose tractor thereof |
| GB2591113A (en) * | 2020-01-16 | 2021-07-21 | Harmill Systems Ltd | Road-rail transporter |
| CN113002252A (en) * | 2021-04-26 | 2021-06-22 | 青岛鸿泰交通设备有限公司 | Highway-railway dual-purpose tractor |
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| CN113524994A (en) | 2021-10-22 |
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