CN107959387B - Speed reduction device for rail transit - Google Patents
Speed reduction device for rail transit Download PDFInfo
- Publication number
- CN107959387B CN107959387B CN201711186842.0A CN201711186842A CN107959387B CN 107959387 B CN107959387 B CN 107959387B CN 201711186842 A CN201711186842 A CN 201711186842A CN 107959387 B CN107959387 B CN 107959387B
- Authority
- CN
- China
- Prior art keywords
- base
- circuit board
- rotating shaft
- current motor
- direct current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- H02K11/04—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
- H02K11/049—Rectifiers associated with stationary parts, e.g. stator cores
- H02K11/05—Rectifiers associated with casings, enclosures or brackets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/08—Cooling, heating or ventilating arrangements
- H01C1/082—Cooling, heating or ventilating arrangements using forced fluid flow
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
-
- 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
-
- 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
-
- 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
- H02K11/27—Devices for sensing current, or actuated thereby
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- 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
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/08—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a dc motor
- H02P3/12—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a dc motor by short-circuit or resistive braking
-
- 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
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/08—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a dc motor
- H02P3/14—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a dc motor by regenerative braking
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a speed reducer for rail transit, which comprises a direct current motor, wherein the bottom of the direct current motor is provided with a base, a stator core is arranged inside the base, a rotating shaft is arranged inside the stator core, bearings are arranged at two ends of the rotating shaft, a rotor core is wrapped outside the rotating shaft, permanent magnets are uniformly distributed outside the rotor core, a rotor is wrapped outside the permanent magnets, a lead is connected to the side surface of the base, the other end of the lead is connected with a resistor box, a plurality of resistors are arranged on the side surface of the resistor box, heat dissipation windows are arranged on the other two opposite side surfaces of the resistor box, a circuit board is arranged inside the base, a single chip microcomputer, an inductor and a positioner are arranged on the surface of the circuit board, signals can be transmitted to the single chip microcomputer by the inductor and the positioner before a train enters a station, and are transmitted to the direct current motor by the single chip microcomputer to decelerate the current motor, the train is decelerated more accurately.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a speed reducer for rail transit.
Background
The rail transit is a transportation means or transportation system for operating vehicles to run on a specific rail, the most typical rail transit is a railway system consisting of a traditional train and a standard railway, and along with the diversified development of train and railway technologies, the rail transit is more and more types, not only extends over long-distance land transportation, but also is widely applied to urban public transportation at terminal distance, has the advantages of safety, comfort, attractiveness, quickness and the like, and is greatly convenient for people to go out.
Because the station spacing of the rail transit is short, the speed reducer of the rail transit is caused to operate more frequently, and in the running process of a city-scale train, passengers frequently get on and off the train, and the speed reducer has great influence on the speed reduction system of the train, so the speed reduction system is an important device for ensuring the normal running and safety of similar trains and ensuring the good comfort of the passengers, but the environment monitoring system of the existing speed reducer is not perfect enough, so that the potential safety hazard is brought to the running of the speed reducer, the speed reduction precision of the existing speed reducer is low, and the train can not be decelerated stably and accurately.
Therefore, how to design a speed reducer for rail transit becomes a problem to be solved currently.
Disclosure of Invention
The invention aims to provide a speed reducer for rail transit, which aims to solve the problems that an environment monitoring system of the speed reducer provided in the background technology is not perfect and the speed reducing precision is low.
In order to achieve the purpose, the invention provides the following technical scheme: a speed reducer for rail transit comprises a direct current motor, wherein a base is arranged at the bottom of the direct current motor, a rectifier is arranged on one side of the base, a junction box is arranged on one side of the rectifier, the rectifier and the junction box are distributed on the same horizontal line and are electrically connected with the base, a stator core is arranged inside the base, a rotating shaft is arranged inside the stator core, bearings are arranged at two ends of the rotating shaft and are movably connected with the rotating shaft, a rotor core is wrapped outside the rotating shaft, a plurality of permanent magnets are uniformly distributed outside the rotor core, the whole permanent magnets are circularly arranged, the permanent magnets and the rotating shaft are movably connected with the rotor core, a rotor is wrapped outside the permanent magnets, a load corrector is arranged at one end of the base, and a circuit breaker is arranged on the other side of the base, the side of the machine base is connected with a lead, the other end of the lead is connected with a resistance box, the side of the resistance box is provided with a plurality of resistors, the resistors are distributed on the same straight line, a circuit board is arranged inside the machine base, the surface of the circuit board is provided with a single chip microcomputer, the single chip microcomputer is electrically connected with the circuit board, the surface of the lead is provided with a high-temperature protector, the high-temperature protector is electrically connected with the lead, the inside of the resistance box is provided with a temperature sensor, the resistance box is in signal connection with the temperature sensor, the surface of the circuit board is provided with a fire detector, the fire detector is electrically connected with the circuit board, the surface of the circuit board is provided with a positioner and an inductor, the positioner and the inductor are in signal connection with the single chip microcomputer, and the top of the resistance box is provided with, and the heat dissipation fan is electrically connected with the resistance box, the other two opposite side surfaces of the resistance box are respectively provided with a heat dissipation window, and the heat dissipation windows are tightly connected with the resistance box.
Furthermore, a sensor is arranged inside the rotor core and fixedly connected with the rotor core.
Furthermore, the circuit breaker and the load corrector are electrically connected with the base.
Compared with the prior art, the invention has the beneficial effects that: the speed reducer for rail transit achieves the speed reduction purpose by combining regenerative braking and resistance braking, not only can the speed of the speed reducer be stably reduced, but also in the process of speed reduction in the regenerative braking mode, a direct current motor can feed electric energy back to a power grid to generate certain economic benefit, the speed reducer is provided with an inductor and a positioner, before a train enters a station, the inductor and the positioner can transmit signals to a single chip microcomputer, the single chip microcomputer transmits the signals to a direct current motor to reduce the speed of the current motor, so that the speed of the train is more accurate, when the train is about to enter the station, the inductor or the positioner transmits the signals to the single chip microcomputer, the single chip microcomputer transmits speed reduction signals to the direct current motor, the direct current motor is changed into a power generation state, a fixed magnetic field is generated in a stator core, a resistance torque is generated in the magnetic field, mechanical energy of train operation is converted into, when the train runs at a low speed, the rotor rotates at a slow speed, the generated current and reaction torque are reduced, the deceleration efficiency is greatly reduced or even fails, at the moment, the train can cut off a feedback circuit generated by a direct current motor, the current automatically enters a resistor box, electric energy is converted into heat energy under the action of a resistor, the generated heat energy is discharged to the atmosphere through a heat dissipation fan and a heat dissipation window to achieve the aim of deceleration, at the moment, a temperature sensor timely senses the temperature of the resistor box, when the temperature exceeds the rated temperature of the resistor box, a signal is timely transmitted to a train safety system, a worker makes certain measures, and a fire detector timely monitors whether the device is in fire or not to ensure the safety of the device, and the device is provided with a perfect environment monitoring and protecting system, such as a circuit breaker, when the rated current in the direct current motor exceeds the standard, the circuit breaker can automatic disconnection direct current motor power, converts the mode of resistance braking into this moment, and the mode that converts the electric energy into heat energy slows down, and condition such as conflagration detector, high temperature protector and temperature sensor whether conflagration takes place can real-time detection the device the operating temperature, has guaranteed the security of the device work.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a partial structural view of a rotor core according to the present invention;
FIG. 3 is a schematic view of a partial structure of the present invention;
in the figure: 1-a direct current motor; 2-a rectifier; 3-a machine base; 4-a stator core; 5-a rotor; 6-a bearing; 7-a rotating shaft; 8-high temperature protector; 9-a wire; 10-a resistance box; 11-a heat dissipation fan; 12-a heat dissipation window; 13-resistance; 14-a temperature sensor; 15-a circuit breaker; 16-a load corrector; 17-a permanent magnet; 18-a rotor core; 19-a sensor; 20-a single chip microcomputer; 21-a circuit board; 22-a fire detector; 23-an inductor; 24-a locator; 25-terminal box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a speed reducer for rail transit comprises a direct current motor 1, wherein a base 3 is arranged at the bottom of the direct current motor 1, a rectifier 2 is arranged on one side of the base 3, a junction box 25 is arranged on one side of the rectifier 2, the rectifier 2 and the junction box 25 are distributed on the same horizontal line and are electrically connected with the base 3, a stator core 4 is arranged inside the base 3, a rotating shaft 7 is arranged inside the stator core 4, bearings 6 are arranged at two ends of the rotating shaft 7, the bearings 6 are movably connected with the rotating shaft 7, a rotor core 18 wraps the outer side of the rotating shaft 7, a plurality of permanent magnets 17 are uniformly distributed on the outer side of the rotor core 18, the permanent magnets 17 are integrally and circularly arranged, the permanent magnets 17 and the rotating shaft 7 are movably connected with the rotor core 18, and a rotor 5 wraps the outer side of the permanent magnets 17, the speed reducer for the track traffic is characterized in that a load corrector 16 is arranged at one end of the base 3, a circuit breaker 15 is arranged at the other side of the base 3, a lead 9 is connected to the side face of the base 3, a resistor box 10 is connected to the other end of the lead 9, a plurality of resistors 13 are arranged on the side faces of the resistor box and the resistor box 10, the resistors 13 are distributed on the same straight line, a circuit board 21 is arranged inside the base 3, a single chip microcomputer 20 is arranged on the surface of the circuit board 21, the single chip microcomputer 20 is electrically connected with the circuit board 21, the speed reducer for the track traffic achieves the speed reduction purpose by adopting a mode of combining regenerative braking and resistor braking, the speed reducer not only can stably reduce the speed of the speed reducer, but also can feed back electric energy into a power grid by a direct current motor in the speed reduction process, certain economic benefit is generated, an inductor and a positioner are arranged in the speed reducer, and, the single chip microcomputer transmits a signal to the direct current motor to decelerate the current motor, so that the train decelerates more accurately, when the train is about to enter a station, a sensor or a positioner transmits the signal to the single chip microcomputer, the single chip microcomputer transmits a deceleration signal to the direct current motor, the direct current motor is changed into a power generation state, a fixed magnetic field is generated in a stator core at the moment, a resistance torque is generated inside the magnetic field, mechanical energy generated by the train operation is converted into electric energy, so that the train decelerates, when the train operation speed is lower, the rotor rotation speed is slower, the generated current and the generated reaction torque are reduced, so that the deceleration efficiency is greatly reduced or even fails, at the moment, a feedback circuit generated by the direct current motor is cut off by the train, the current automatically enters a resistance box, the electric energy is converted into heat energy under the action of a resistor, the generated heat energy is discharged to the atmosphere through, the timely temperature of feeling resistance box of temperature sensor this moment, when the temperature surpassed resistance box's rated temperature, in time with signal transmission to train safety system, make certain measure by the staff, and whether conflagration detector timely control the device breaks out a fire, the security of the device work has been guaranteed, and the device is equipped with more perfect environmental monitoring and protection system, like the circuit breaker, when the inside rated current of direct current motor exceeds standard, the circuit breaker can automatic disconnection direct current motor power, convert the mode of resistance braking this moment into, slow down with the mode of electric energy conversion into heat energy, fire detector, high temperature protector and temperature sensor, can real-time detection the operating temperature of the device, whether the condition such as conflagration takes place, the security of the device work has been guaranteed.
Further, the surface of wire 9 is equipped with high temperature protector 8, just high temperature protector 8 with 9 electric connection of wire, high temperature protector 8 can be when 9 inside high temperatures of wire, and the security of the device work has been guaranteed to timely circuit disconnection.
Further, a temperature sensor 14 is arranged inside the resistor box 10, the resistor box 10 is in signal connection with the temperature sensor 14, the temperature sensor 14 senses the temperature of the resistor box 10 timely, when the temperature exceeds the rated temperature of the resistor box 10, signals are transmitted to a train safety system timely, and certain measures are taken by workers.
Further, a sensor 19 is arranged inside the rotor core 18, the sensor 19 is fixedly connected with the rotor core 18, and the sensor 19 detects the position of the rotor 5 in real time to help the direct current motor 1 to rotate well.
Further, the surface of the circuit board 21 is provided with a fire detector 22, the fire detector 22 is electrically connected with the circuit board 21, and the fire detector 22 timely monitors whether the device is in fire or not, so that the working safety of the device is ensured.
Further, the surface of circuit board 21 is equipped with locator 24 and inductor 23, just locator 24 reaches inductor 23 all with singlechip 20 signal connection, the train is before the station entry, and inductor 23 and locator 24 can give singlechip 20 with signal transmission, give DC motor 1 by singlechip 20 transmission and make DC motor 1 slow down, make the train slow down more accurately.
Further, the top of resistance box 10 is equipped with heat dissipation fan 11, just heat dissipation fan 11 with resistance box 10 electric connection, heat dissipation fan 11 can be timely with the timely atmosphere of arranging of the heat energy that resistance box 10 produced, improve resistance box 10's work efficiency.
Further, the other two opposite side surfaces of the resistor box 10 are provided with heat dissipation windows 12, the heat dissipation windows 12 are tightly connected with the resistor box 10, and the heat dissipation windows 12 can dissipate heat of the resistor box 10.
Further, the circuit breaker 15 and the load corrector 16 are both connected to the base 3, and when the rated current inside the dc motor 1 exceeds the standard, the circuit breaker 15 automatically disconnects the power supply of the dc motor 1, thereby achieving high safety.
The working principle is as follows: when a train is about to enter a station, the sensor 23 or the positioner 24 transmits a signal to the single chip microcomputer 20, the single chip microcomputer 20 transmits a deceleration signal to the direct current motor 1, the direct current motor 1 is changed to a power generation state, a fixed magnetic field is generated in the stator core 4 at the moment, a resistance torque is generated in the magnetic field, mechanical energy generated by the train operation is converted into electric energy, the train is decelerated, when the train operation speed is low, the rotor 5 rotates slowly, generated current and counter torque are reduced, the deceleration efficiency is greatly reduced or even fails, the train cuts off a feedback circuit generated by the direct current motor 1 at the moment, the current automatically enters the resistor box 10, the electric energy is converted into heat energy under the action of the resistor 10, the generated heat energy is discharged into the atmosphere through the heat dissipation fan 11 and the heat dissipation window 12, the deceleration purpose is achieved, and the temperature sensor 14 timely senses the temperature of the resistor box 10, when the temperature exceeds the rated temperature of the resistor box 10, a signal is timely transmitted to a train safety system, certain measures are taken by working personnel, and the fire detector 22 timely monitors whether the device is in fire or not, so that the working safety of the device is ensured.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification. The protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (3)
1. The utility model provides a decelerator for track traffic, includes direct current motor (1), its characterized in that: the motor comprises a direct current motor (1), a base (3) is arranged at the bottom of the direct current motor (1), a rectifier (2) is arranged on one side of the base (3), a junction box (25) is arranged on one side of the rectifier (2), the rectifier (2) and the junction box (25) are distributed on the same horizontal line and are electrically connected with the base (3), a stator iron core (4) is arranged inside the base (3), a rotating shaft (7) is arranged inside the stator iron core (4), bearings (6) are arranged at two ends of the rotating shaft (7), the bearings (6) are movably connected with the rotating shaft (7), a rotor iron core (18) is wrapped outside the rotating shaft (7), a plurality of permanent magnets (17) are uniformly distributed on the outer side of the rotor iron core (18), the permanent magnets (17) are integrally arranged in a circular shape, and the permanent magnets (17) and the rotating shaft (7) are movably connected with the rotor iron core (18), the outer side of the permanent magnet (17) is wrapped by the rotor (5), one end of the base (3) is provided with a load corrector (16), the other side of the base (3) is provided with a circuit breaker (15), the side of the base (3) is connected with a wire (9), the other end of the wire (9) is connected with a resistance box (10), the side of the resistance box (10) is provided with a plurality of resistors (13), the resistors (13) are distributed on the same straight line, the inside of the base (3) is provided with a circuit board (21), the surface of the circuit board (21) is provided with a single chip microcomputer (20), the single chip microcomputer (20) is electrically connected with the circuit board (21), the surface of the wire (9) is provided with a high-temperature protector (8), the high-temperature protector (8) is electrically connected with the wire (9), the inside of the resistance box (10) is provided with a temperature sensor (14, and resistance box (10) with temperature sensor (14) signal connection, the surface of circuit board (21) is equipped with fire detector (22), just fire detector (22) with circuit board (21) electric connection, the surface of circuit board (21) is equipped with locator (24) and inductor (23), just locator (24) reach inductor (23) all with singlechip (20) signal connection, the top of resistance box (10) is equipped with heat dissipation fan (11), just heat dissipation fan (11) with resistance box (10) electric connection, two opposite sides in addition of resistance box (10) all are equipped with heat dissipation window (12), just heat dissipation window (12) with resistance box (10) zonulae occludens.
2. A deceleration device for rail transit according to claim 1, wherein: a sensor (19) is arranged inside the rotor core (18), and the sensor (19) is fixedly connected with the rotor core (18).
3. A deceleration device for rail transit according to claim 1, wherein: the circuit breaker (15) and the load corrector (16) are electrically connected with the base (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711186842.0A CN107959387B (en) | 2017-11-24 | 2017-11-24 | Speed reduction device for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711186842.0A CN107959387B (en) | 2017-11-24 | 2017-11-24 | Speed reduction device for rail transit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107959387A CN107959387A (en) | 2018-04-24 |
| CN107959387B true CN107959387B (en) | 2020-08-18 |
Family
ID=61961901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711186842.0A Active CN107959387B (en) | 2017-11-24 | 2017-11-24 | Speed reduction device for rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107959387B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860162A (en) * | 2010-05-26 | 2010-10-13 | 煤炭科学研究总院太原研究院 | Anti-explosion permanent magnet direct-current brushless motor with controller |
-
2017
- 2017-11-24 CN CN201711186842.0A patent/CN107959387B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860162A (en) * | 2010-05-26 | 2010-10-13 | 煤炭科学研究总院太原研究院 | Anti-explosion permanent magnet direct-current brushless motor with controller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107959387A (en) | 2018-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101934738B (en) | Double-rotor disc self-excited retarder and control method thereof | |
| CN107959387B (en) | Speed reduction device for rail transit | |
| CN202542722U (en) | Energy feedback control circuit of anti-explosion variable frequency crane | |
| CN203326573U (en) | Motor disconnection protection device | |
| CN204937399U (en) | A kind of rear arm integrated electric overall height speed motor | |
| CN202369220U (en) | Redundant braking protection device for high-speed elevator | |
| CN201972849U (en) | Emergency feathering device for direct current variable-propeller-pitch control system | |
| CN101214907A (en) | Alternating current frequency conversion tyre crane | |
| CN209427935U (en) | A kind of traction machine system and elevator device with envelope star function | |
| CN215419940U (en) | High-efficiency braking three-phase asynchronous motor | |
| CN203367993U (en) | Motor temperature protection device | |
| CN204675735U (en) | A kind of elevator traction brake equipment | |
| CN208226797U (en) | A kind of drag cup servo electrical machinery system | |
| Indra | Industrial fiber optics in train transportation systems | |
| CN201990351U (en) | New energy elevator | |
| CN206293880U (en) | Motor sweeps a protector | |
| CN220055971U (en) | Elevator door motor control system | |
| CN203368047U (en) | Integrated grid-connection and inversion controller of wind generator | |
| CN203568704U (en) | Contactless dustproof wireless receiver for commutation of motor of overhead travelling crane | |
| CN220139372U (en) | Motor with bilateral power generation structure | |
| CN2594232Y (en) | Explosion proof variable frequency and voltage speed-adjusting elevator tractor | |
| CN217600124U (en) | Intelligent five-screen main control console for electric control system of mine hoist | |
| CN216070002U (en) | Emergency train stopping device based on track circuit | |
| CN112299188B (en) | Anti-falling speed reduction device for building construction elevator | |
| CN207442720U (en) | Phase asynchronous short braking motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200724 Address after: 1503, block a, navigation Plaza, intersection of hanghai road and Lianyun Road, Erqi District, Zhengzhou City, Henan Province Applicant after: Asia space train (Henan) Rail Transit Co.,Ltd. Address before: 236700, Anhui, Bozhou province Lixin Fuxing Road on the north side of a vocational family hospital Applicant before: ANHUI FENGYAXUAN SCIENCE & TECHNOLOGY INFORMATION SERVICE Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |