CN110920417A - Pure electric transport vehicle - Google Patents
Pure electric transport vehicle Download PDFInfo
- Publication number
- CN110920417A CN110920417A CN201911088124.9A CN201911088124A CN110920417A CN 110920417 A CN110920417 A CN 110920417A CN 201911088124 A CN201911088124 A CN 201911088124A CN 110920417 A CN110920417 A CN 110920417A
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- walking
- pure electric
- battery pack
- main frame
- steering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/12—Travelling ladles or similar containers; Cars for ladles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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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
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
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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
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
- B62D5/064—Pump driven independently from vehicle engine, e.g. electric driven pump
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The invention relates to a pure electric transport vehicle, which comprises a main frame and a travelling wheel device, wherein the travelling wheel device comprises a travelling suspension mechanism and a travelling wheel set, the travelling suspension mechanism is installed at the lower end of the main frame, the travelling wheel device also comprises a travelling axle mechanism and a travelling driving motor installed on the travelling axle mechanism, and the travelling wheel set is installed on the travelling axle mechanism and is in transmission connection with the travelling driving motor; the pure electric transport vehicle further comprises a battery pack device, a vehicle control unit and a walking motor controller, wherein the battery pack device is connected with the walking driving motor through the walking motor controller for supplying power, and the vehicle control unit is connected with the walking motor controller and used for controlling the action of the walking motor controller. The pure electric transport vehicle adopts a pure electric driving mode, has simple structure, less running and transmission parts, small vibration, small workload of maintenance and repair, quite stable performance and cost saving.
Description
Technical Field
The invention relates to the field of vehicle driving, in particular to a pure electric transport vehicle.
Background
The molten iron transport vehicle is special vehicle transport equipment on a metallurgical production line, is widely applied to the process connection of iron making and steel making, realizes the road transport of the molten iron at present, and leads the process layout of a steel mill to be more compact and reasonable. The existing molten iron transport vehicle adopts the finished product to pull the molten iron vehicle at the vehicle head and adopts the engine to burn fuel to obtain the power of the whole vehicle, the noise and the tail gas emission generated by the engine cause bad influence on the operation environment, the engine has a plurality of fault points, the maintenance and repair cost is large, the spare part purchasing period is long, and the like.
Disclosure of Invention
In view of the above drawbacks of the prior art, the present invention provides a pure electric transportation vehicle, which replaces the existing internal combustion engine transportation vehicle, has a simple structure, few operation and transmission components, relatively stable performance, and can reduce environmental pollution.
In order to achieve the purpose, the invention provides a pure electric transport vehicle which comprises a main vehicle frame and a travelling wheel device, wherein the travelling wheel device comprises a travelling suspension mechanism and a travelling wheel set, the travelling suspension mechanism is installed at the lower end of the main vehicle frame, the travelling wheel device also comprises a travelling axle mechanism and a travelling driving motor installed on the travelling axle mechanism, and the travelling wheel set is installed on the travelling axle mechanism and is in transmission connection with the travelling driving motor; the pure electric transport vehicle further comprises a battery pack device, a whole vehicle controller and a walking motor controller, wherein the battery pack device is connected with the walking driving motor through the walking motor controller to supply power, and the whole vehicle controller is connected with the walking motor controller and used for controlling the action of the walking motor controller.
Furthermore, the battery pack device comprises a battery pack box body, a plurality of battery packs and a heat dissipation fan, wherein the battery packs are located in the battery pack box body, the battery pack box body is provided with a fan mounting hole, and the heat dissipation fan is located in the fan mounting hole.
Further, the battery pack device also comprises a temperature sensor arranged in the battery pack box body.
The battery pack device is connected with the storage battery through the converter, and the storage battery is connected with the vehicle control unit.
Further, still including turning to the device, walking suspension mechanism of walking wheel device can install in main frame lower extreme with controlling rotatoryly, turn to the device and be connected with walking wheel device, drive walking wheel device and control the rotation.
Furthermore, the steering device comprises a steering telescopic power cylinder hinged on the main frame, and a piston rod of the steering telescopic power cylinder is hinged on the walking wheel device and used for the walking wheel device to rotate left and right.
Furthermore, turn to flexible power cylinder for the hydro-cylinder, pure electric vehicles is still including hydraulic system, hydraulic pump driving motor and the pump machine controller that has the hydraulic pump, hydraulic pump driving motor drives the hydraulic pump and rotates, the hydraulic pump links to each other with the hydro-cylinder, drive the telescopic motion of hydro-cylinder, the battery package device links to each other with hydraulic pump driving motor through pump machine controller and supplies power, vehicle control unit links to each other with pump machine controller.
Further, a plurality of walking wheel devices are installed to main frame lower extreme, and two adjacent walking wheel devices turn to in step through a steering gear, turn to the device and include one and turn to flexible power cylinder and link gear, link gear includes first connecting lever, first connecting rod, second connecting rod and second connecting lever, first connecting lever and second connecting lever are fixed mutually with a walking suspension mechanism of walking wheel device respectively, first connecting rod one end is articulated with first connecting lever, the other end links to each other with second connecting rod one end is articulated, the other end and the second connecting lever of second connecting rod are articulated, turn to flexible power cylinder articulate on main frame, and its piston rod is articulated mutually with one of them walking wheel device.
Furthermore, two symmetrical steering devices positioned on the left side and the right side of the main frame are connected through a middle linkage connecting lever, the middle of the middle linkage connecting lever can be connected to the main frame in a left-right rotating mode, a first connecting rod and a second connecting rod of the left side steering device are respectively hinged to the left side end of the middle linkage connecting lever to realize hinged connection, and a first connecting rod and a second connecting rod of the right side steering device are respectively hinged to the right side end of the middle linkage connecting lever to realize hinged connection.
The driven wheel device comprises a driven suspension mechanism which can be installed below the main frame in a left-right rotating mode, a driven axle mechanism installed on the driven suspension mechanism, and a driven wheel set installed on the driven axle mechanism, and two adjacent driven wheel devices located on the same side of the main frame are synchronously steered through one steering device.
As described above, the pure electric transport vehicle according to the present invention has the following beneficial effects:
the battery pack device, the whole vehicle controller and the walking motor controller are arranged, the walking wheel set is installed on the walking axle mechanism, the walking driving motor installed on the walking axle mechanism is used for driving the walking wheel set to rotate, and the battery pack device is used for providing electric drive for the walking driving motor. When the pure electric transport vehicle is used, the whole vehicle controller sends out an instruction, the walking motor controls the whole vehicle controller to obtain the instruction to act, the walking driving motor obtains electric energy from the battery pack, and the walking driving motor is started to rotate, so that the walking wheel set is driven to rotate, and the pure electric transport vehicle can move forwards or backwards. The walking drive control of the pure electric transport vehicle can be completed through the whole vehicle controller and the walking motor controller, and the whole power system of the transport vehicle is simplified. The pure electric transport vehicle adopts a pure electric driving mode, and has low noise and no pollution. Compared with the internal combustion engine drive, the pure electric drive has the advantages of simple structure of the transport vehicle, less running and transmission parts, small vibration, small damage to the parts of the transport vehicle, small maintenance workload and quite stable performance. Meanwhile, the pure electric transport vehicle uses a single electric energy source, and compared with a fuel engine, the pure electric transport vehicle saves oil, saves space and weight occupied by a transmission system, and saves the overall cost.
Drawings
Fig. 1 is a schematic structural diagram of a pure electric transport vehicle according to the present invention.
Fig. 2 is a plan view of fig. 1, with a part of the structure omitted.
Fig. 3 is a schematic structural view of a battery pack device according to the present invention.
Fig. 4 is a connection diagram of the battery pack device, the vehicle control unit, the traveling motor controller, and the traveling drive motor according to the present invention.
Fig. 5 is a schematic view of the installation of the traveling bridge mechanism and the traveling drive motor in the present invention.
Fig. 6 is a schematic structural view of the steering device of the present invention.
Description of the element reference numerals
1 Main frame
2 walking suspension mechanism
3 bridge mechanism of walking
31 axle frame
32-wheel edge speed reducer
4 running wheel group
5 Battery pack device
51 Battery pack box
52 Battery pack
53 fan mounting plate
54 heat radiation fan
6 vehicle control unit
7 walking driving motor
8 walking motor controller
9 hydraulic pump driving motor
10 pump motor controller
11 storage battery
12 current transformer
13 steering device
131 steering telescopic power cylinder
132 first crank arm
133 first link
134 second connecting rod
135 second crank arm
14 middle linkage crank arm
15 driver's cabin
16 sunshade
17 driven suspension mechanism
18 driven wheel group
19 Hot-metal bottle
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure of the present specification.
It should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for convenience of description only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be regarded as the scope of the present invention without substantial changes in the technical contents.
Referring to fig. 1 to 6, the invention provides a pure electric transport vehicle, which comprises a main frame 1 and a travelling wheel device, wherein the travelling wheel device comprises a travelling suspension mechanism 2 installed at the lower end of the main frame 1 and a travelling wheel set 4, the travelling wheel device also comprises a travelling axle mechanism 3 and a travelling driving motor 7 installed on the travelling axle mechanism 3, and the travelling wheel set 4 is installed on the travelling axle mechanism 3 and is in transmission connection with the travelling driving motor 7; the pure electric transport vehicle further comprises a battery pack device 5, a whole vehicle controller 6 and a walking motor controller 8, the battery pack device 5 is connected with a walking driving motor 7 through the walking motor controller 8 for power supply, and the whole vehicle controller 6 is connected with the walking motor controller 8 and used for controlling the action of the walking motor controller 8. Wherein, the quantity of walking wheel device can be confirmed according to actual need to rationally arrange.
The working principle of the pure electric transport vehicle is as follows: the running wheel set 4 is installed on the running axle mechanism 3, the running driving motor 7 installed on the running axle mechanism 3 is utilized to drive the running wheel set 4 to rotate, and the battery pack device 5 is utilized to provide electric drive for the running driving motor 7. The vehicle control unit 6 can be arranged in the cab 15, when the vehicle control unit is used, a worker sends an instruction through the vehicle control unit 6 in the cab 15, the walking motor controller 8 obtains the instruction from the vehicle control unit 6 to act, the walking driving motor 7 obtains electric energy from the battery pack device 5 and starts the walking driving motor 7 to rotate, and therefore the walking wheel set 4 is driven to rotate, the pure electric transport vehicle can move forwards or backwards and can be transported. Through the vehicle control unit 6 and the walking motor controller 8, the walking driving control of the pure electric transport vehicle can be completed, and the whole power system of the transport vehicle is simplified. The vehicle control unit 6 and the traveling motor controller 8 may be the existing controllers capable of realizing the above functions.
The pure electric transport vehicle adopts a pure electric driving mode, and the motor replaces a fuel engine, so that the noise is low and the pollution is avoided. Compared with the internal combustion engine drive, the pure electric drive has the advantages of simple structure of the transport vehicle, less running and transmission parts, small vibration, small damage to the parts of the transport vehicle, small workload of maintenance and quite stable performance. Meanwhile, the pure electric transport vehicle uses a single electric energy source, and compared with a fuel engine, the pure electric transport vehicle saves oil, saves space and weight occupied by a transmission system, and saves the overall cost.
As a preferable design, referring to fig. 3, in the present embodiment, the battery pack apparatus 5 includes a battery pack case 51, a plurality of battery packs 52 located in the battery pack case 51, and a heat dissipation fan 54, wherein a fan mounting hole is provided on the battery pack case 51, and the heat dissipation fan 54 is located in the fan mounting hole. The heat radiation fan 54 may be a centrifugal fan, and may be mounted on a fan mounting plate 53 provided in the battery pack case 51. Further preferably, the battery pack device 5 further includes a temperature sensor disposed in the battery pack case 51, the temperature sensor detects that the temperature in the battery pack case 51 exceeds a preset temperature and then starts the heat dissipation fan 54, and centrifugal force generated by rotation of the heat dissipation fan 54 throws out fluid in the battery pack case from the circumferential direction, so as to achieve the purpose of cooling, thereby ensuring the stability of the battery pack device 5 in use. Preferably, a heat dissipation hole is further formed on the battery pack case 51 to assist in heat dissipation. The battery pack 52 is charged by adopting double charging piles, and the battery pack 52 provides power for the whole vehicle. Further preferably, a sunshade 16 is provided above the battery pack device 5 to protect the battery pack device 5 from sunlight.
Referring to fig. 3, in the present embodiment, the pure electric vehicle further includes a battery 11 and a converter 12, the battery pack apparatus 5 is connected to the battery 11 through the converter 12, and the battery 11 is connected to the vehicle control unit 6. The converter 12 is a DC/DC converter, the battery pack device 5 charges the storage battery 11 through the converter 12, and the storage battery 11 is used for supplying power to the vehicle control unit 6.
In the present embodiment, referring to fig. 5, preferably, the traveling axle mechanism 3 in the traveling wheel device includes a bridge frame 31, and a wheel reduction gear 32 mounted on the bridge frame 31, the traveling wheel set 4 is mounted on the wheel reduction gear 32, and the traveling drive motor 7 drives the traveling wheel set 4 to roll through the wheel reduction gear 32.
As a preferable design, referring to fig. 3, in this embodiment, the pure electric transport vehicle further includes a steering device 13, the traveling suspension mechanism 2 of the traveling wheel device is installed at the lower end of the main frame 1 in a left-right rotatable manner, and the steering device 13 is connected with the traveling wheel device and drives the traveling wheel device to rotate left and right, so as to achieve steering of the pure electric transport vehicle. The operation of the steering device 13 can be controlled by the vehicle controller 6.
Referring to fig. 2, preferably, the steering device 13 comprises a steering telescopic power cylinder 131 hinged on the main frame 1, and a piston rod of the steering telescopic power cylinder 131 is hinged on the road wheel device and used for the left and right rotation of the road wheel device. The steering telescopic power cylinder 131 may be an air cylinder, an oil cylinder, an electric cylinder, or the like. In this embodiment, the steering telescopic power cylinder 131 is hinged to a hinge base fixed to the lower end of the main frame 1, and the hinge point of the piston rod thereof is eccentric to the rotation shaft of the suspension mechanism 3. The piston rod of the steering telescopic power cylinder 131 can be hinged on the corresponding part of the walking suspension mechanism 2 or the walking axle mechanism 3 according to the actual situation. Of course, in other embodiments, the steering device 13 may adopt other existing mechanisms, and the above-described road wheel driving device may be configured to rotate left and right.
Referring to fig. 4, in this embodiment, preferably, the steering telescopic power cylinder 131 is an oil cylinder, the pure electric transport vehicle further includes a hydraulic system having a hydraulic pump, a hydraulic pump driving motor 9, and a pump motor controller 10, the hydraulic pump driving motor 9 drives the hydraulic pump to rotate, the hydraulic pump is connected with the oil cylinder and drives the oil cylinder to move in a telescopic manner, the battery pack device 5 is connected with the hydraulic pump driving motor 9 through the pump motor controller 10 for supplying power, the vehicle control unit 6 is connected with the pump motor controller 10, the vehicle control unit 6 sends out a command, the pump motor controller 10 obtains the command from the vehicle control unit 6 to act, so that the hydraulic pump driving motor 9 obtains electric energy from the battery pack device 5 and starts the hydraulic pump driving motor 9 to rotate, thereby drive hydraulic pump and rotate, the hydraulic pump passes through hydraulic oil drive hydro-cylinder piston rod concertina movement to this realizes walking wheel device and rotates from side to side. Of course, in other embodiments, the steering telescopic power cylinder 131 may also be an electric cylinder, and the electric cylinder is directly driven to rotate by electric power.
By adopting the mode of driving and steering by the telescopic power cylinder, each walking wheel device can be matched with an independent telescopic power cylinder, and the walking wheel devices are controlled to independently and synchronously steer by controlling the synchronous action of different telescopic power cylinders. Of course, a plurality of travelling wheel devices can be connected by adopting a corresponding linkage structure, and when the telescopic power cylinder drives one travelling wheel device to rotate, the other travelling wheel devices are synchronously driven to rotate. As a preferable design, in this embodiment, referring to fig. 1, 2 and 6, a plurality of road wheel devices are mounted at the lower end of the main frame 1, and two adjacent road wheel devices steer synchronously through one steering device 13, the steering device 13 includes a steering telescopic power cylinder 131 and a linkage mechanism, the linkage mechanism includes a first crank arm 132, a first connecting rod 133, a second connecting rod 134 and a second crank arm 135, the first crank arm 132 and the second crank arm 135 are respectively fixed with the traveling suspension mechanism 2 of one road wheel device, one end of the first connecting rod 133 is hinged with the first crank arm 132, the other end is hinged with one end of the second connecting rod 134, the other end of the second connecting rod 134 is hinged with the second crank arm 135, the steering telescopic power cylinder 131 is hinged on the main frame 1, and the piston rod thereof is driven to be hinged with one of the road wheel devices. Specifically, in this embodiment, referring to fig. 1 and 6, four traveling wheel devices are installed at the front end of the main frame 1, two traveling wheel devices are respectively installed on the left side and the right side, two traveling wheel devices located on the same side are synchronously steered by one steering device 13, the first connecting lever 132 is fixed to the traveling suspension mechanism 2 of the front traveling wheel device, the second connecting lever 135 is fixed to the traveling suspension mechanism 2 of the rear traveling wheel device, and the piston rod of the steering telescopic power cylinder 131 is specifically hinged to the traveling suspension mechanism 2 of the front traveling wheel device or the traveling axle mechanism 3. Therefore, when the piston rod of the steering telescopic power cylinder 131 moves telescopically to drive one of the road wheel devices to rotate, the other road wheel device is synchronously driven to rotate in the same direction through the linkage motion of the first crank arm 132, the first connecting rod 133, the second connecting rod 134 and the second crank arm 135, so that the two road wheel devices on the same side rotate synchronously in the same direction.
In the present invention, the first link 133 and the second link 134 are hinged to each other, which means that the first link 133 and the second link 134 can be directly hinged to each other, or can be hinged to each other through an intermediate member, that is, the first link 133 and the second link 134 are both hinged to the intermediate member, as shown in fig. 6.
Referring to fig. 6, when the pure electric transport vehicle needs to steer, in the steering device 13 for driving the two left-side road wheel devices and the steering device 13 for driving the two right-side road wheel devices, the telescopic motion conditions of the piston rods of the two steering telescopic power cylinders 131 are determined according to the arrangement conditions of the telescopic power cylinders, specifically in this embodiment, the two steering devices 13 are symmetrically arranged, and one of the two telescopic power cylinders extends out and contracts when the pure electric transport vehicle steers. When the piston rod of the steering telescopic power cylinder 131 extends out by the same stroke, the pure electric transport vehicle moves straight. ,
referring to fig. 6, it is further preferable that two symmetrical steering devices 13 located at the left and right sides of the main frame 1 are connected by a middle interlocking crank arm 14, the middle of the middle interlocking crank arm 14 is connected to the main frame 1 to be rotatable left and right, and the first link 133 and the second link 134 of the left-side steering device 13 are hinged to the left side end of the middle interlocking crank arm 14 to be hingedly connected, and the first link 133 and the second link 134 of the right-side steering device 13 are hinged to the right side end of the middle interlocking crank arm 14 to be hingedly connected, respectively. The middle of the middle linkage connecting lever 14 is arranged on the main frame 1 through a shaft pin, and the steering devices 13 which are symmetrical on the left side and the right side can be linked through the middle linkage connecting lever 14, so that the four electric drive vehicle bridge devices on the left side and the right side can synchronously rotate in the same direction, and the smooth steering of the pure electric transport vehicle is ensured.
According to the pure electric transport vehicle, the driven wheel device can be arranged as required. Referring to fig. 1 and 2, in the present embodiment, the pure electric transport vehicle further includes a plurality of driven wheel devices, each driven wheel device includes a driven suspension mechanism 17 installed below the main frame 1 in a left-right rotation manner, a driven axle mechanism installed on the driven suspension mechanism 17, and a driven wheel group 18 installed on the driven axle mechanism, and two adjacent driven wheel devices located on the same side of the main frame 1 are steered synchronously by one steering device 13. The same principle as the walking wheel device, two adjacent driven wheel devices located on the same side of the main frame can also synchronously turn through one steering device 13, specifically, in this embodiment, four driven wheel devices are installed at the front end of the main frame 1, two driven wheel devices are respectively located on the left side and the right side, two driven wheel devices located on the same side are synchronously turned through one steering device 13, and two symmetrical steering devices 13 located on the left side and the right side of the main frame can also be connected through one middle linkage crank arm 14, the principle of the steering device is the same as that of the steering device 13 and the middle linkage crank arm 14 which are arranged on the walking wheel device, and the details are not repeated here.
The pure electric transport vehicle can be used in various occasions, particularly for molten iron transport, and referring to fig. 1, a molten iron tank 19 is mounted on a main frame 1, and the main frame 1 is U-shaped, so that the bearing stability of the pure electric transport vehicle is improved.
From the above, the pure electric transport vehicle, especially the pure electric transport vehicle in the embodiment of the present invention, adopts a pure electric driving mode to drive the pure electric transport vehicle to move forward, and adopts an electric driving mode to realize steering, so that the steering is stable and reliable, and the operation is convenient. The power of the pure electric transport vehicle comes from the battery pack device 5, a fuel engine is omitted as a power source, and the pure electric transport vehicle is low in noise and free of pollution. Compared with the internal combustion engine drive, the pure electric drive has the advantages of simple structure of the transport vehicle, less running and transmission parts, small vibration, small damage to the parts of the transport vehicle, small workload of maintenance and quite stable performance. Meanwhile, the pure electric transport vehicle uses a single electric energy source, and compared with a fuel engine, the pure electric transport vehicle saves oil, saves space and weight occupied by a transmission system, and saves the overall cost.
In conclusion, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be accomplished by those skilled in the art without departing from the spirit and scope of the present invention as set forth in the appended claims.
Claims (10)
1. The utility model provides a pure electric transport vehicle, includes main frame (1) and walking wheel device, walking wheel device hangs mechanism (2) and walking wheelset (4) including the walking of installing at main frame (1) lower extreme, its characterized in that: the walking wheel device also comprises a walking axle mechanism (3) and a walking driving motor (7) arranged on the walking axle mechanism (3), and the walking wheel set (4) is arranged on the walking axle mechanism (3) and is in transmission connection with the walking driving motor (7); the pure electric transport vehicle further comprises a battery pack device (5), a vehicle control unit (6) and a walking motor controller (8), wherein the battery pack device (5) is connected with a walking driving motor (7) through the walking motor controller (8) to supply power, and the vehicle control unit (6) is connected with the walking motor controller (8) and used for controlling the movement of the walking motor controller (8).
2. The pure electric vehicle according to claim 1, characterized in that: the battery pack device (5) comprises a battery pack box body (51), a plurality of battery packs (52) and a heat dissipation fan (54), wherein the battery packs (52) are located in the battery pack box body (51), a fan mounting hole is formed in the battery pack box body (51), and the heat dissipation fan (54) is located in the fan mounting hole.
3. The pure electric vehicle according to claim 1, characterized in that: the battery pack device (5) further comprises a temperature sensor arranged in the battery pack box body (51).
4. The pure electric vehicle according to claim 1, characterized in that: the vehicle-mounted battery pack device is characterized by further comprising a storage battery (11) and a converter (12), wherein the battery pack device (5) is connected with the storage battery (11) through the converter (12), and the storage battery (11) is connected with the vehicle control unit (6).
5. The pure electric vehicle according to claim 1, characterized in that: still include to turn to device (13), walking suspension mechanism (2) of walking wheel device can install at main frame (1) lower extreme with controlling the rotation, turn to device (13) and be connected with walking wheel device, drive walking wheel device and control the rotation.
6. A pure electric transport vehicle according to claim 5, characterized in that: the steering device (13) comprises a steering telescopic power cylinder (131) hinged to the main frame (1), and a piston rod of the steering telescopic power cylinder (131) is hinged to the walking wheel device and used for the walking wheel device to rotate left and right.
7. A pure electric transport vehicle according to claim 6, characterized in that: turn to flexible power cylinder (131) and be the hydro-cylinder, pure electric vehicles is still including hydraulic system, hydraulic pump driving motor (9) and pump motor controller (10) that have the hydraulic pump, hydraulic pump driving motor (9) drive the hydraulic pump and rotate, the hydraulic pump links to each other with the hydro-cylinder, drive the telescopic motion of hydro-cylinder, battery package device (5) link to each other with hydraulic pump driving motor (9) through pump motor controller (10) and carry out the power supply, vehicle control unit (6) link to each other with pump motor controller (10).
8. A pure electric transport vehicle according to claim 6, characterized in that: a plurality of walking wheel devices are arranged at the lower end of the main frame (1), and two adjacent walking wheel devices synchronously steer through a steering device (13), the steering device (13) comprises a steering telescopic power cylinder (131) and a linkage mechanism, the linkage mechanism comprises a first crank arm (132), a first connecting rod (133), a second connecting rod (134) and a second crank arm (135), the first crank arm (132) and the second crank arm (135) are respectively fixed with a walking suspension mechanism (2) of a walking wheel device, one end of the first connecting rod (133) is hinged with the first crank arm (132), the other end is hinged with one end of the second connecting rod (134), the other end of the second connecting rod (134) is hinged with a second crank arm (135), the steering telescopic power cylinder (131) is hinged on the main frame (1), and a piston rod of the steering telescopic power cylinder is hinged with one of the road wheel devices.
9. The pure electric vehicle according to claim 8, characterized in that: two symmetrical steering devices (13) positioned at the left side and the right side of a main frame (1) are connected through a middle linkage connecting lever (14), the middle of the middle linkage connecting lever (14) can be connected to the main frame (1) in a left-right rotating mode, a first connecting rod (133) and a second connecting rod (134) of the left side steering device (13) are respectively hinged to the left side end of the middle linkage connecting lever (14) to realize hinging connection, and a first connecting rod (133) and a second connecting rod (134) of the right side steering device (13) are respectively hinged to the right side end of the middle linkage connecting lever (14) to realize hinging connection.
10. A pure electric vehicle according to claim 9, characterized in that: the driven wheel device comprises a driven suspension mechanism (17) which can be arranged below the main frame (1) in a left-right rotating mode, a driven axle mechanism arranged on the driven suspension mechanism (17), and a driven wheel set (18) arranged on the driven axle mechanism, and two adjacent driven wheel devices positioned on the same side of the main frame (1) are synchronously steered through a steering device (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911088124.9A CN110920417A (en) | 2019-11-08 | 2019-11-08 | Pure electric transport vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911088124.9A CN110920417A (en) | 2019-11-08 | 2019-11-08 | Pure electric transport vehicle |
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| CN110920417A true CN110920417A (en) | 2020-03-27 |
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| CN201911088124.9A Pending CN110920417A (en) | 2019-11-08 | 2019-11-08 | Pure electric transport vehicle |
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Application publication date: 20200327 |