CN110984981B - Bottom dump forklift based on switched reluctance motor - Google Patents
Bottom dump forklift based on switched reluctance motor Download PDFInfo
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- CN110984981B CN110984981B CN201911392215.1A CN201911392215A CN110984981B CN 110984981 B CN110984981 B CN 110984981B CN 201911392215 A CN201911392215 A CN 201911392215A CN 110984981 B CN110984981 B CN 110984981B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/20—Mineral freed by means not involving slitting
- E21C27/30—Mineral freed by means not involving slitting by jaws, buckets or scoops that scoop-out the mineral
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
- E21C31/02—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for cutting or breaking-down devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
- E21C31/08—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for adjusting parts of the machines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/24—Remote control specially adapted for machines for slitting or completely freeing the mineral
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/08—Reluctance motors
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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
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Abstract
The invention discloses a bottom dump forklift based on a switched reluctance motor, which belongs to the technical field of underground mining and comprises a frame, wherein a power supply device, a switched reluctance motor controller, a switched reluctance motor, a driving device, a tipping device and a control system are arranged on the frame; the power supply device supplies power to the switched reluctance motor controller, the switched reluctance motor, the driving device, the tipping device and the control system; the control system controls the switched reluctance motor through the switched reluctance motor controller, the switched reluctance motor drives the forklift to move through the driving device, the tipping bucket device controls the tipping bucket through the lifting device, and the lifting device is connected with the control system. The problem of because of the tunnel section is little, the unable normal use of formula forklift tipping bucket turns over forward has the reliability height simultaneously, and the interference killing feature is strong, efficient, and response time is shorter, and continuous load operating duration is longer, the life-span is longer.
Description
Technical Field
The invention relates to a bottom dump forklift based on a switched reluctance motor, and belongs to the technical field of underground mining.
Background
A mining method refers to a method of extracting ore from a lump (or panel). It includes three works of mining preparation, cutting and stoping. The mining preparation work is arranged according to the size of the ore block constituent elements, and the problems of pedestrians, ore transportation, equipment material transportation, ventilation, communication and the like are solved for ore block mining; cutting creates necessary free surface and ore falling space for stoping; after the two works are finished, large-area recovery is directly carried out. The three operations are all carried out in a certain time and space, are connected and are organically matched in sequence in time and space, and the operation is generally called a mining method.
In the ore back mining field, the forklift tipping bucket that uses in the pit at present is the formula of turning over before, can satisfy a lot of places and use, and the benefit of the tipping bucket of the formula of turning over before lies in that the size is enough big, can satisfy a lot of places and use, but limits in the section in tunnel, and the formula tipping bucket of turning over before is in tunnel during operation, and the forklift tipping bucket size that needs can not be too big, has just brought the shovel and has adorned efficiency not high like this, and intensity of labour is big, problem that manufacturing cost is high.
And electric forklift, diesel oil forklift are widely applied to underground mining, and electric excavator has the structure succinct, easy operation, work efficiency is high, the maintenance is simple, do not have air pollution's characteristics, nevertheless receive the restriction working radius of cable and generally not more than 90 meters, and diesel oil forklift has the operating distance unrestricted, characteristics that work efficiency is high, and the diesel engine is maintained the maintenance loaded down with trivial details, and the structure is complicated, and exhaust emissions causes secondary pollution.
Disclosure of Invention
The invention aims to provide a bottom-dump forklift based on a switched reluctance motor, which has the characteristics of simple structure, high stability, no distance limitation, no pollution to the environment, high shoveling capacity, high shoveling efficiency, high reliability, high anti-interference capability, high efficiency, short response time, long continuous load running time and long service life, and solves the problem that a front-dump forklift tipping bucket cannot be normally used due to small roadway section.
In order to solve the problems, the invention provides a switched reluctance motor-based bottom dump forklift which comprises a frame, wherein a power supply device, a switched reluctance motor controller, a switched reluctance motor, a driving device, a tipping device and a control system are arranged on the frame;
the power supply device supplies power to the switched reluctance motor controller, the switched reluctance motor, the driving device, the tipping device and the control system; the control system controls the switched reluctance motor through the switched reluctance motor controller, the switched reluctance motor drives the forklift to move through the driving device, the tipping bucket device controls the tipping bucket through the lifting device, and the lifting device is connected with the control system.
As a preferred scheme, the tipping device comprises a tipping bucket and a fixed base below the tipping bucket, a first rotating shaft is arranged below one side of the base, a second rotating shaft is arranged above the first rotating shaft along the edge of the bottom of the base, a third rotating shaft is arranged above the second rotating shaft and close to the inner side of the edge of the tipping bucket, the first rotating shaft is connected with one end of a lifting arm, the other end of the lifting arm is connected with the third rotating shaft through a connecting rod, and a lifting device is connected at the hinged position of the lifting arm and the connecting rod; the lifting arm is a C-shaped force arm; the tipping bucket overturns along the second rotating shaft; the lifting device adopts a hydraulic cylinder, the hydraulic cylinder comprises a cylinder body, a piston and a connecting rod, the piston is arranged in the cylinder body, a lifting block is arranged at the head of the connecting rod outside the piston, the lifting block is connected at the hinged position of an arm and the connecting rod, volume cavities are respectively formed on two sides of the piston of the cylinder body, one of the volume cavities is connected with the oil port A, the other volume cavity is connected with the oil port B, and when oil is fed from the oil port A and oil is discharged from the oil port B, the piston can be pushed to move to one side; when the oil outlet A discharges oil and the oil inlet B discharges oil, the piston can be pushed to move to the opposite side, and the hydraulic cylinder is connected with a hydraulic power and control system.
As a preferred scheme, the switched reluctance motor comprises a shell, wherein a front end cover and a rear end cover are arranged on the shell, a stator and a rotor are arranged in an inner cavity of the shell, and a position sensor is arranged on the front end cover; the stator is provided with 8 windings connected with the temperature switch in series; each two opposite-pole windings are one phase, a temperature switch is connected in series in each phase of winding, and the stator comprises a stator iron core, a framework, a lead plate, windings and a temperature switch; the framework is arranged on the stator core, and the lead plate is fixed on the framework; the windings are respectively wound on the framework on the stator core; the included angle between the lead plate and the position sensor is 90 degrees; the fan is sleeved on the outer side of the shell, a fan cover is sleeved outside the fan, and a filter screen is arranged on the inner surface of the fan cover.
As a preferred scheme, the switched reluctance motor controller comprises a power module, a central processing module, a signal processing module, a communication module, a driving module, a power module and a heat dissipation module; the terminal of the power module is directly connected with the motor through a lead, and the signal processing module transmits information to the central processing module; the power module comprises an IGBT, a power diode and a heat dissipation module, the IGBT is fixedly arranged on the heat dissipation module on the circuit board, the heat dissipation module is provided with a temperature detector, and the power diode is close to the corresponding IGBT; the driving module comprises a driving chip and a peripheral circuit, and the driving module transmits a switching signal to the corresponding IGBT on the circuit board by the shortest circuit path. The central processing module consists of an ARM chip and a CPLD chip, and the communication module is connected with the ARM chip. The communication module is communicated with the man-machine interaction panel through optical coupling isolation, and the distances between the communication module and other modules on the circuit board are larger than the distances between the communication module and the central processing module;
the signal processing module receives signals of a temperature detector, a temperature sensor and a position sensor on the motor and transmits the signals to the central processing module, and the power supply module supplies power to the central processing module, the signal processing module, the communication module, the driving module, the power module and the heat dissipation module.
As a preferred scheme, a control circuit module of the switched reluctance motor controller receives a command from a control system; the power module controls each switching tube of the power circuit to convert power output, decomposes instructions from a control system, calculates the turn-on sequence of each power switching tube and the turn-on and turn-off time of each power switching tube, detects power current in real time, and protects the safety of the power switching tubes when the current exceeds a set upper limit;
the driving module outputs current for power driving to a phase winding in the switched reluctance motor which needs power output at the moment;
the position sensor applies voltage pulses for position detection to the winding of the phase requiring no power output at this time at fixed intervals;
the signal processing module sends real-time position information of the motor rotor to the central processing module, and the central processing module determines the switching, on and off time of a power output phase and a non-power output phase by combining an instruction from the control system;
the central processing module calculates the rotating speed and the rotating acceleration of the switched reluctance motor and sends the rotating speed and the rotating acceleration information of the switched reluctance motor to the control system.
As a preferred scheme, the power supply device includes a farad capacitor, the farad capacitor supplies power to the system through a dc switching power converter, the farad capacitor is installed in a capacitor accommodating box, the capacitor accommodating box is arranged on a rear frame of the vehicle, the farad capacitor management circuit receives data of the super capacitor, and the data includes a charging state, a voltage, a current and a temperature of the super capacitor bank; and the control system reads the supercapacitor group data received by the Faraday management circuit and displays the supercapacitor group data on a display screen.
As a preferable scheme, the farad capacitance is an asymmetric high-power supercapacitor.
The invention has the beneficial effects that:
the invention adopts the super capacitor, has the characteristics of short charging time, long service life, good temperature characteristic, energy conservation, environmental protection and the like, saves the structure of a cable box, reduces the gravity center of the excavator, widens the visual field, meanwhile, the capacitor containing box has the characteristics of simple structure, no distance limitation and no environmental pollution, the cavity-shaped capacitor containing box can enhance the mechanical strength of the box body, reduce the influence among the super capacitors and is beneficial to heat dissipation, the baffle is used for fixing the super capacitors, meanwhile, the spring at the bottom of the chamber is beneficial to the shock absorption of the super capacitor in the working engineering of the forklift, the design of the charging mechanism is convenient for charging, the output pressure of the oil pump is adjusted by adjusting the rotating speed of the direct-current switched reluctance motor of the switched reluctance motor speed adjusting system, so that hydraulic loss can be reduced, mechanical abrasion can be reduced, the temperature of hydraulic oil can be reduced, the replacement period of hydraulic oil can be prolonged, and the production cost can be reduced.
Drawings
FIG. 1 is a block diagram of the system of the present invention;
FIG. 2 is a schematic view of the structure of the tipping bucket of the present invention;
FIG. 3 is a schematic diagram of a switched reluctance motor according to the present invention;
FIG. 4 is a block diagram of the controller operation of the present invention;
FIG. 5 is a power supply system of the present invention;
wherein: 1. a lifting arm; 2. a second rotating shaft; 3. a lifting device; 4. tipping; 5. a first rotating shaft; 6. a third rotating shaft; .
Detailed Description
The following description is only an example of the present invention and does not limit the scope of the present invention.
Example 1:
referring to the attached drawings of the specification, the bottom dump forklift based on the switched reluctance motor in the embodiment comprises a frame, wherein a power supply device, a switched reluctance motor controller, a switched reluctance motor, a driving device, a tipping device and a control system are mounted on the frame;
the power supply device supplies power to the switched reluctance motor controller, the switched reluctance motor, the driving device, the tipping bucket device and the control system; the control system controls the switched reluctance motor through the switched reluctance motor controller, the switched reluctance motor drives the forklift to move through the driving device, the tipping bucket device controls the tipping bucket through the lifting device 3, and the lifting device 3 is connected with the control system.
As a preferable scheme, the tipping device comprises a tipping bucket 4 and a fixed base below the tipping bucket 4, a first rotating shaft 5 is arranged below one side of the base, a second rotating shaft 2 is arranged at a position above the first rotating shaft 5 along the edge of the bottom of the base 4, a third rotating shaft 6 is arranged above the second rotating shaft 2 and close to the inner side of the edge of the tipping bucket 4, the first rotating shaft 5 is connected with one end of a lifting arm 1, the other end of the lifting arm 1 is connected with the third rotating shaft 6 through a connecting rod, and a lifting device 3 is connected at the hinged position of the lifting arm 1 and the connecting rod; the lifting arm 1 is a C-shaped force arm; the tipping bucket 4 turns over along the second rotating shaft 2; the lifting device 3 adopts a hydraulic cylinder, the hydraulic cylinder comprises a cylinder body, a piston and a connecting rod, the piston is arranged in the cylinder body, a lifting block is arranged at the head of the connecting rod outside the piston, the lifting block is connected at the hinged position of an arm and the connecting rod, volume cavities are respectively formed on two sides of the piston of the cylinder body, one volume cavity is connected with the oil port A, the other volume cavity is connected with the oil port B, and when oil is fed from the oil port A and oil is discharged from the oil port B, the piston can be pushed to move to one side; when the oil outlet A discharges oil and the oil inlet B discharges oil, the piston can be pushed to move to the opposite side, and the hydraulic cylinder is connected with a hydraulic power and control system.
As a preferred scheme, the switched reluctance motor comprises a shell, wherein a front end cover and a rear end cover are arranged on the shell, a stator and a rotor are arranged in an inner cavity of the shell, and a position sensor is arranged on the front end cover; the stator is provided with 8 windings connected with the temperature switch in series; each two opposite-pole windings are one phase, a temperature switch is connected in series in each phase of winding, and the stator comprises a stator iron core, a framework, a lead plate, windings and a temperature switch; the framework is arranged on the stator core, and the lead plate is fixed on the framework; the windings are respectively wound on the framework on the stator core; the included angle between the lead plate and the position sensor is 90 degrees; the fan is sleeved on the outer side of the shell, a fan cover is sleeved outside the fan, and a filter screen is arranged on the inner surface of the fan cover.
As a preferred scheme, the switched reluctance motor controller comprises a power module, a central processing module, a signal processing module, a communication module, a driving module, a power module and a heat dissipation module; the terminal of the power module is directly connected with the motor through a lead, and the signal processing module transmits information to the central processing module; the power module comprises an IGBT, a power diode and a heat dissipation module, the IGBT is fixedly arranged on the heat dissipation module on the circuit board, the heat dissipation module is provided with a temperature detector, and the power diode is close to the corresponding IGBT; the driving module comprises a driving chip and a peripheral circuit, and the driving module transmits a switching signal to the corresponding IGBT on the circuit board by the shortest circuit path. The central processing module consists of ARM and CPLD double chips, and the communication module is connected with the ARM chip. The communication module is communicated with the man-machine interaction panel through optical coupling isolation, and the distances between the communication module and other modules on the circuit board are larger than the distances between the communication module and the central processing module;
the signal processing module receives signals of temperature sensors and position sensors on the temperature detector and the motor and transmits the signals to the central processing module, and the power supply module supplies power to the central processing module, the signal processing module, the communication module, the driving module, the power module and the heat dissipation module.
As a preferred scheme, a control circuit module of the switched reluctance motor controller receives a command from a control system; the power module controls each switching tube of the power circuit to convert power output, decomposes instructions from a control system, calculates the turn-on sequence of each power switching tube and the turn-on and turn-off time of each power switching tube, detects power current in real time, and protects the safety of the power switching tubes when the current exceeds a set upper limit;
the driving module outputs current for power driving to a phase winding in the switched reluctance motor which needs power output at the moment;
the position sensor applies voltage pulses for position detection to the winding of the phase requiring no power output at this time at fixed intervals;
the signal processing module sends real-time position information of the motor rotor to the central processing module, and the central processing module determines the switching, on and off time of a power output phase and a non-power output phase by combining an instruction from the control system;
the central processing module calculates the rotating speed and the rotating acceleration of the switched reluctance motor and sends the rotating speed and the rotating acceleration information of the switched reluctance motor to the control system.
As a preferred scheme, the power supply device includes a farad capacitor, the farad capacitor supplies power to the system through a dc switching power converter, the farad capacitor is installed in a capacitor accommodating box, the capacitor accommodating box is arranged on a rear frame of the vehicle, the farad capacitor management circuit receives data of the super capacitor, and the data includes a charging state, a voltage, a current and a temperature of the super capacitor bank; and the control system reads the supercapacitor group data received by the Faraday management circuit and displays the supercapacitor group data on a display screen.
As a preferable scheme, the farad capacitance is an asymmetric high-power supercapacitor.
The super capacitor battery is also called gold capacitor and farad capacitor, and it stores energy by polarized electrolyte, and belongs to one kind of double electric layer capacitor. The energy storage process is reversible because the energy storage process does not generate chemical reaction, and the super capacitor can be repeatedly charged and discharged for tens of thousands of times. The super capacitor generally uses an activated carbon electrode material, and has the characteristics of large adsorption area and much electrostatic storage.
The invention adopts the super capacitor, has the characteristics of short charging time, long service life, good temperature characteristic, energy conservation, environmental protection and the like, and has the characteristics of simple structure, no distance limitation and no environmental pollution.
The hydraulic pressure can be adjusted by adopting the switched reluctance motor between the lifting device and the control system, the output pressure of the oil pump is adjusted by adjusting the rotating speed of the direct-current switched reluctance motor of the switched reluctance motor speed adjusting system, the hydraulic loss can be reduced, the mechanical wear is reduced, the temperature of hydraulic oil is reduced, the replacement period of the hydraulic oil is prolonged, and the production cost is reduced.
The switched reluctance motor speed regulating system is a latest generation stepless speed regulating system developed after a variable frequency speed regulating system and a brushless direct current motor speed regulating system, and is an optical, mechanical and electrical integration high and new technology integrating modern microelectronic technology, digital technology, power electronic technology, infrared photoelectric technology, modern electromagnetic theory, design and manufacturing technology. The speed regulating system has the advantages of both direct current and alternating current speed regulating systems. The research on the speed regulating system of the switched reluctance motor in economically developed countries such as English, American and the like is early, and remarkable effect is achieved, the power grade of the product is from several w to hundreds kw, and the switched reluctance motor speed regulating system is widely applied to the fields of household appliances, aviation, aerospace, electronics, machinery, electric vehicles and the like.
The working principle is as follows: the invention adds a rotating shaft at the bottom of the tipping bucket 4 to flexibly open and close the bottom, and then adds a C-shaped force arm 1 and a lifting device 3 to connect the lifting device 3 with the force arm 1 and the tipping bucket 4. Thus, the forklift tipping bucket can be turned forwards and also can be unloaded flexibly and conveniently at the bottom, and is quick and efficient. The problem of because of the tunnel section is little, unable normal use of tipping bucket is solved and efficiency has been improved. The forklift dump bucket 4 can freely select the unloading mode according to the actual conditions in the using process, is flexible and changeable, and improves the efficiency.
The position sensor device arranged on the motor can transmit the obtained current motor rotating speed and the obtained stator and rotor position information to the central processing module of the controller through isolated communication, and the central processing module judges the current logic control signal output according to the obtained information. And after receiving the logic control signal output by the central processing module, the driving module controls the on-off of the corresponding IGBT on the power module to enable the motor to rotate.
In the rotating process, the signal processing module can acquire signals such as voltage and current of the motor system in real time and transmit the signals to the central processing module, and the central processing module limits the output current and changes logic control signals according to current and voltage signals to realize closed-loop control of the system. .
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (3)
1. A bottom dump forklift based on a switched reluctance motor is characterized by comprising a frame, wherein a power supply device, a switched reluctance motor controller, the switched reluctance motor, a driving device, a tipping bucket device and a control system are arranged on the frame; the power supply device supplies power to the switched reluctance motor controller, the switched reluctance motor, the driving device, the tipping bucket device and the control system; the control system controls the switched reluctance motor through a switched reluctance motor controller, the switched reluctance motor drives the forklift to move through the driving device, the tipping bucket device controls the tipping bucket through the lifting device (3), and the lifting device (3) is connected with the control system; the tipping bucket device comprises a tipping bucket (4) and a fixed base below the tipping bucket (4), a first rotating shaft (5) is arranged below one side of the base, a second rotating shaft (2) is arranged at a position above the first rotating shaft (5) along the edge of the bottom of the base, a third rotating shaft (6) is arranged at a position, close to the inner side of the edge of the tipping bucket (4), above the second rotating shaft (2), the first rotating shaft (5) is connected with one end of a lifting arm (1), the other end of the lifting arm (1) is connected with the third rotating shaft (6) through a connecting rod, and a lifting device (3) is connected at the hinged part of the lifting arm (1) and the connecting rod; the lifting arm (1) is a C-shaped force arm; the tipping bucket (4) turns over along the second rotating shaft (2); the lifting device (3) adopts a hydraulic cylinder, the hydraulic cylinder comprises a cylinder body, a piston and a connecting rod, the piston is arranged in the cylinder body, a lifting block is arranged at the head of the connecting rod outside the piston, the lifting block is connected at the hinged position of an arm and the connecting rod, volume cavities are respectively formed on two sides of the piston by the cylinder body, one volume cavity is connected with the oil port A, the other volume cavity is connected with the oil port B, and when oil is fed from the oil port A and oil is discharged from the oil port B, the piston can be pushed to move to one side; when the oil outlet A is used for discharging oil and the oil inlet B is used for feeding oil, the piston can be pushed to move to the opposite side, and the hydraulic cylinder is connected with a hydraulic power and control system; the switched reluctance motor comprises a shell, wherein a front end cover and a rear end cover are arranged on the shell, a stator and a rotor are arranged in the inner cavity of the shell, and a position sensor is arranged on the front end cover; the stator is provided with 8 windings connected with the temperature sensors in series; each two opposite-pole windings are one phase, a temperature sensor is connected in series in each phase of winding, and the stator comprises a stator iron core, a framework, a lead plate, windings and a temperature sensor; the framework is arranged on the stator core, and the lead plate is fixed on the framework; the windings are wound on the frameworks of the stator cores respectively; the included angle between the lead plate and the position sensor is 90 degrees; the fan is sleeved outside the shell, a fan cover is sleeved outside the fan, and a filter screen is arranged on the inner surface of the fan cover; the switched reluctance motor controller comprises a power supply module, a central processing module, a signal processing module, a communication module, a driving module, a power module and a heat dissipation module; the terminal of the power module is directly connected with the motor through a lead, and the signal processing module transmits information to the central processing module; the power module comprises an IGBT, a power diode and a heat dissipation module, the IGBT is fixedly arranged on the heat dissipation module on the circuit board, the heat dissipation module is provided with a temperature detector, and the power diode is close to the corresponding IGBT; the driving module comprises a driving chip and a peripheral circuit, the driving module transmits a switching signal to a corresponding IGBT on a circuit board in the shortest circuit path, the central processing module consists of an ARM (advanced RISC machine) chip and a CPLD (complex programmable logic device) chip, the communication module is connected with the ARM chip, the communication module is communicated with the man-machine interaction panel through optical coupling isolation, and the distances between the communication module and other modules on the circuit board are larger than the distance between the communication module and the central processing module; the signal processing module receives signals of a temperature detector, a temperature sensor and a position sensor on the motor and transmits the signals to the central processing module, and the power supply module supplies power to the central processing module, the signal processing module, the communication module, the driving module, the power module and the heat dissipation module; the power supply device comprises a farad capacitor, the farad capacitor supplies power to a system through a direct-current switching power supply converter, the farad capacitor is arranged in a capacitor accommodating box, the capacitor accommodating box is arranged on a rear frame of the vehicle, and the farad capacitor management circuit receives data of the farad capacitor, wherein the data comprises the charging state, voltage, current and temperature of a farad capacitor group; the control system reads the farad capacitor group data received by the farad management circuit and displays the data on a display screen; a switched reluctance motor is also adopted between the lifting device and the control system to adjust the hydraulic pressure, and the output pressure of the oil pump is adjusted by adjusting the rotating speed of a direct current switched reluctance motor of a switched reluctance motor speed adjusting system.
2. The switched reluctance motor based bottom dump truck of claim 1 wherein the control circuit module of the switched reluctance motor controller receives commands from a control system; the power module controls each switching tube of the power circuit to convert power output, decomposes instructions from a control system, calculates the turn-on sequence of each power switching tube and the turn-on and turn-off time of each power switching tube, detects power current in real time, and protects the safety of the power switching tubes when the current exceeds a set upper limit; the driving module outputs current for power driving to a phase winding in the switched reluctance motor which needs power output at the moment; the position sensor applies voltage pulses for position detection to the winding of the phase requiring no power output at this time at fixed intervals; the signal processing module sends real-time position information of the motor rotor to the central processing module, and the central processing module determines the switching, on and off time of a power output phase and a non-power output phase by combining an instruction from the control system; the central processing module calculates the rotating speed and the rotating acceleration of the switched reluctance motor and sends the rotating speed and the rotating acceleration information of the switched reluctance motor to the control system.
3. The switched reluctance motor based bottom dump forklift of claim 1, wherein the farad capacitor is an asymmetric high power farad capacitor.
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| CN201181885Y (en) * | 2008-02-22 | 2009-01-14 | 淄博市博山昊龙机械厂 | Three phase asynchronous motor for YGY series oil cooling type tumbling cylinder |
| CN201713841U (en) * | 2009-08-19 | 2011-01-19 | 范福仓 | Self-power supplying non-fuel digging machine |
| CN201513199U (en) * | 2009-09-29 | 2010-06-23 | 李秋 | Roadway rock loading machine |
| CN203080564U (en) * | 2012-12-25 | 2013-07-24 | 安徽中鼎飞彩车辆有限公司 | Multifunctional side-dump type guiding control bucket for wheel loader |
| CN203113394U (en) * | 2013-01-18 | 2013-08-07 | 南昌凯马有限公司 | Bottom-dump bucket discharging operating mechanism |
| RU162647U1 (en) * | 2016-01-25 | 2016-06-20 | федеральное государственное бюджетное образовательное учреждение высшего образования "Брянский государственный инженерно-технологический университет" | HYDRAULIC LOADER BUCKET |
| IT201700055309A1 (en) * | 2017-05-22 | 2018-11-22 | Simex Eng S R L | BUCKET, COMBINED SYSTEM INCLUDING THE BUCKET AND METHOD FOR REPAIR AND / OR RESTORATION OF FLOORING, IN PARTICULAR OF SOLID FLOORS SUCH AS FOR EXAMPLE ROAD OR SIMILAR FLOORING |
| CN207277395U (en) * | 2017-05-25 | 2018-04-27 | 山东科技大学 | A kind of new bucker-type dirt loader |
| CN108612138B (en) * | 2018-06-27 | 2024-06-14 | 大连理工高邮研究院有限公司 | Green new forms of energy scraper |
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