CN114123666B - Electromagnetic speed reducing motor with electromagnetic protection structure and use method thereof - Google Patents
Electromagnetic speed reducing motor with electromagnetic protection structure and use method thereof Download PDFInfo
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- CN114123666B CN114123666B CN202111312140.9A CN202111312140A CN114123666B CN 114123666 B CN114123666 B CN 114123666B CN 202111312140 A CN202111312140 A CN 202111312140A CN 114123666 B CN114123666 B CN 114123666B
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
- H02H7/0854—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load responsive to rate of change of current, couple or speed, e.g. anti-kickback protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/09—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against over-voltage; against reduction of voltage; against phase interruption
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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
- H02K11/225—Detecting coils
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- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses an electromagnetic speed-reducing motor with an electromagnetic protection structure and a using method thereof, and the electromagnetic speed-reducing motor comprises a supporting table, wherein the top of the supporting table is provided with a supporting seat through a bolt, the top of the supporting seat is provided with a casing, the rear end of the casing is provided with a rear sealing cover through a bolt, the front end of the casing is provided with a front sealing cover, the inner side of the front sealing cover is provided with a supporting bearing, the inner side of the rear sealing cover is provided with a supporting ring, the inner side of the supporting ring is provided with a limiting bearing, the inner side of the limiting bearing is provided with a rotating rod, and the rotating rod is arranged on the inner side of the supporting bearing. The invention can realize the weak magnetic protection of the motor by installing the weak magnetic relay, and when the weak magnetic current value reaches the action value of the weak magnetic relay in the starting and running process of the motor, the relay is attracted, so that the normally open contact connected in series in the control circuit is closed, and the motor is allowed to maintain the normal running.
Description
Technical Field
The invention relates to the technical field of motors, in particular to an electromagnetic speed reducing motor with an electromagnetic protection structure and a using method thereof.
Background
The motor converts electric energy into mechanical energy, and provides power for the device.
The existing electromagnetic deceleration motor has the following defects:
1. the comparison document CN212935709U discloses a capacitor running gear speed reducing motor, which comprises a bottom plate, wherein a speed reducing motor body is installed on the upper side of the bottom plate through a lower support, stand columns are installed at four corners of the upper side of the bottom plate, a top cover is installed on the upper sides of the stand columns, a support rod is installed on one end of the top cover, a first transmission rod is installed on the upper side of the support rod through a connecting seat in a rotating manner, a first transmission rod is arranged at one end of the first transmission rod, a wind blade is arranged at one end of the first transmission rod, a second transmission rod is connected at one end of the first transmission rod in a transmission manner, a third transmission rod is connected at one end of the second transmission rod in a transmission manner, and a first radiating blade and a second radiating blade are arranged at one end of the third transmission rod;
2. reference CN208782649U discloses a high-efficient push rod reducing motor of big moment, "including motor and the reduction gear box who holds in the shell, reduction gear box is including the one end that is fixed in the motor and the bottom plate of coaxial setting, and decide transmission ratio gear group, high-efficient push rod reducing motor of big moment is still including holding lead screw and the inner loop pole in the sleeve pipe, the lead screw has the neck, flat axial region and screw thread portion, it is fixed that clamp by the nut behind the flat hole that stretches into output gear group is stretched into to the flat axial region of lead screw, the trompil of bottom plate is stretched into to the neck of lead screw, the one end fixed connector of inner loop pole, the fixed screw rod cover of the other end of inner loop pole, the screw rod cover can be on the screw thread portion of lead screw position with the adjustment connector. When the screw rod is sleeved on the threaded part of the screw rod and screwed in, the inner sleeve rod fixed together with the screw rod sleeve can axially and linearly displace along with the screwing of the screw rod sleeve, so that the stroke of the connector fixed at the other end of the inner sleeve rod can be increased and shortened along with the screw rod sleeve, and the application is flexible and convenient;
3. the reference CN207612169U discloses a bidirectional clutch planetary gear speed reducing motor, which comprises a motor and a speed reducing box, wherein the output part of the motor is connected with the input part of the speed reducing box. The reduction box is provided with a rotating shaft, and an output gear is sleeved at the outer end of the rotating shaft. The speed reduction box is characterized in that the speed reduction box is cylindrical, and a cylinder opening of the speed reduction box is fixedly connected with the motor. The inner wall of the reduction box is evenly provided with tooth openings along the circumferential direction. The reduction box is internally provided with a star gear speed reducing mechanism which comprises a driving gear, the reduction box on one side of the driving gear far away from the motor is internally provided with a transmission disc, one side of the transmission disc far away from the motor is provided with a transmission shaft, star gears are uniformly distributed between the periphery of the driving gear and the inner wall of the reduction box, and the star gears are all connected with the transmission disc through pins. The driving gear is concentrically connected with the output shaft of the motor, and the transmission shaft is concentrically connected with the rotating shaft. And a bidirectional clutch mechanism is arranged between the output gear and the rotating shaft. This gear motor's volume is less, and bearing capacity is big, work is steady ", and the inside speed sensor that lacks of device, inconvenient user knows the output rotational speed of device, and it is slow that the unable judgement rotational speed is fast, when the rotational speed is too fast, can cause the influence to production facility.
Disclosure of Invention
The present invention is directed to an electromagnetic deceleration motor with an electromagnetic protection structure and a method for using the same to solve the problems of the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the electromagnetic speed reducing motor with the electromagnetic protection structure comprises a supporting table, wherein a supporting seat is mounted at the top of the supporting table through a bolt, a casing is mounted at the top of the supporting seat, a rear sealing cover is mounted at the rear end of the casing through a bolt, a front sealing cover is mounted at the front end of the casing, a supporting bearing is mounted on the inner side of the front sealing cover, a supporting ring is mounted on the inner side of the rear sealing cover, a limiting bearing is mounted on the inner side of the supporting ring, a rotating rod is mounted on the inner side of the limiting bearing, a speed reducing machine body is mounted at the front end of the front sealing cover through a bolt and is located on the outer side of the rotating rod, an adhering seat is welded and mounted at the front end of the speed reducing machine body, and the rotating rod extends to the front end of the adhering seat; the outer wall of the shell is provided with a fixed seat, one side of the fixed seat is provided with a junction box, and the inner side of the junction box is provided with a weak magnetic relay.
Preferably, automatic air circuit breaker is installed to the inboard of terminal box, and automatic air circuit breaker is located the rear of weak magnetic relay, and the equipment lid is installed to one side gomphosis of terminal box, runs through on the outer wall of equipment lid and installs the display, and the top of terminal box is run through and is installed the power cord.
Preferably, the through hole has been seted up to the inboard of laminating seat, and the dwang runs through to be installed in the inboard of running through the hole, and the screw thread runs through on the top outer wall of laminating seat and installs the screw thread seat, and test sensor is installed to the bottom of screw thread seat, and test sensor is located the top of dwang, and the sensing line is installed at the top of screw thread seat.
Preferably, the bottom of the supporting table is connected with a telescopic rod through a connecting piece, the bottom of the telescopic rod is connected with a bottom plate through a connecting piece, a supporting column is installed at the top of the bottom plate and located behind the telescopic rod, and the top of the supporting column is installed at the bottom of the supporting table through a connecting piece.
Preferably, install stator core on the inner wall of casing, stator winding group is installed to stator core's inboard, runs through on the outer wall of casing and installs the fin, and the top welding of fin has the insulation board, and the rubber handle is installed at the top of insulation board.
Preferably, the surface mounting of dwang has the rotor assembly, and the rotor assembly is located the inboard of stator winding group, the surface mounting of dwang has the antifriction plate, and the antifriction plate is located the place ahead of rotor assembly, the surface mounting of dwang has location bearing, location bearing installs the inside at the speed reducer body, and location bearing is located the place ahead of antifriction plate, the connector is installed to the dwang front end, the rear end of dwang runs through spacing bearing and installs the flabellum, the surface mounting of dwang has the response axle collar, and the response axle collar is located test sensor's below.
Preferably, the back of the rear sealing cover is provided with a heat conducting fin, the heat conducting fin is positioned on the outer side of the support ring, the back of the rear sealing cover is provided with a ventilation cover in a threaded manner, and the ventilation cover is positioned on the outer side of the heat conducting fin.
Preferably, install on the inner wall of speed reducer body and separate the magnetic net, the internally mounted of speed reducer body has circular telegram magnetic unit, movable chamber has been seted up to the inside of speed reducer body, the inboard movable mounting in activity chamber has the antifriction plate, install the electromagnetism polar plate on the back wall in activity chamber, and electromagnetism polar plate and circular telegram magnetic unit electric connection, install the spring on the back wall in activity chamber, and the spring is located the outside of dwang, the activity stripper plate is installed to the front end of spring, and the activity stripper plate is located the outside of dwang, the activity stripper plate is located the rear of antifriction plate, the back mounted of activity stripper plate has fixed magnetic sheet, and fixed magnetic sheet corresponds with the electromagnetism polar plate.
Preferably, the working steps of the device are as follows:
s1, firstly, a bottom plate is installed on the ground through a bolt by a worker, the stability of the device is ensured, then a user controls the extension of a telescopic rod, the extension of the telescopic rod drives the front end of a top supporting table to move upwards, the user can conveniently adjust the angle required to be adjusted by the motor according to the requirement, so that the output end of the motor can be stably connected with a connecting device, then the user penetrates through the front end of a fitting seat through the bolt, the fitting seat is fixed on the connecting device through the bolt, the connecting device is connected with a connector through threads, then the user connects an external power supply with a junction box through a power line, an automatic air circuit breaker in the junction box is electrically connected with the power line, when a problem occurs in the process of transmitting electric power by a circuit on the device, the automatic air circuit breaker can quickly break the circuit, the electric power transmission between the motor and the power supply is disconnected, the continuous transmission of the electric power is avoided, greater danger is caused, circuits around the device cannot be affected due to the fact that one circuit has a problem, then the electric power is transmitted to the interior of the motor, the control device operates, in the operation process of the motor, the motor is guaranteed to work under a magnetic field with certain strength through the weak magnetic relay, the magnetic field cannot be weakened or disappear, the rotating speed of the motor is prevented from being rapidly increased, even the phenomenon of runaway occurs, in the magnetic loop of the motor, the weak magnetic relay is connected in a magnetic loop of the motor, the weak magnetic protection of the motor can be realized, and in the starting and operating processes of the motor, when the weak magnetic current value reaches the action value of the weak magnetic relay, the relay is attracted, so that a normally open contact connected in series in the control circuit is closed, and the motor is allowed to maintain normal operation;
s2, simultaneously transmitting electric power to a stator winding group, electrifying the interior of the stator winding group to generate a driving magnetic field for driving a rotor group on the inner side to rotate, driving a rotating rod on the inner side to rotate by the rotation of the rotor group, driving a connector at the front end to rotate by the rotation of the rotating rod, transmitting the rotating force to a rotating device by the connector, facilitating the device to transmit power, simultaneously driving an abrasion-resistant plate on the outer side, a positioning bearing, a limiting bearing and a fan blade to rotate by the rotation of the rotating rod, limiting the rotating rod by the positioning bearing on the inner side of a speed reducer body, ensuring the stable rotation of the rotating rod by the limiting bearing, driving airflow to move by the rotation of the fan blade, accelerating the heat dissipation speed of the device and ensuring the normal internal temperature of the casing;
s3, when the rotating rod rotates to drive the induction shaft collar to rotate, a coil inside the test sensor can generate magnetic lines of force, the induction shaft collar can cut the magnetic lines of force when rotating, electromotive force is generated in the induction coil due to magnetic resistance change of the magnetic circuit, the voltage generated by the induction potential of the test sensor is related to the rotating speed of the induction shaft collar, the voltage is in direct proportion to the rotating speed, when the rotating speed of the induction shaft collar exceeds the range capable of being induced by the test sensor, the electrified magnetic group is electrified to generate an electromagnetic field, meanwhile, magnetic force is transmitted to the electromagnetic plate, the magnetic pole on the surface of the electromagnetic plate opposite to the fixed magnetic plate is a positive pole, the surface of the fixed magnetic plate opposite to the electromagnetic plate is a positive pole, the fixed magnetic plate is pushed forwards by the electromagnetic plate according to the principle that like poles repel each other, the fixed magnetic plate moves forwards to drive the movable extrusion plate to move forwards, the movable extrusion plate is in contact with one surface of the wear-resistant plate, the rotating rod for slowing down through friction, and the rotating speed of the wear-resistant plate is slowed down.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention ensures that the motor works under a magnetic field with certain intensity by installing the weak magnetic relay, so that the magnetic field is not weakened or disappeared, the rotating speed of the motor is prevented from being rapidly accelerated, and even the phenomenon of runaway is avoided.
2. According to the invention, the automatic air circuit breaker is arranged and is used for connecting an external power supply and a circuit in the motor, when the problems of short circuit, overlarge voltage and the like occur in the process of power transmission of the circuit on the device, the automatic air circuit breaker quickly disconnects the circuit, so that the power transmission between the motor and the power supply is disconnected, the continuous power transmission is avoided, the greater danger is caused, and the circuits around the device are not influenced by the problem of one circuit.
3. The test sensor is fixed on the fitting seat through the threaded seat, so that a user can conveniently assemble and disassemble the test sensor, when the rotating rod drives the induction shaft collar to rotate in the rotating process, the coil in the test sensor can generate magnetic lines of force, the induction shaft collar can cut the magnetic lines of force when rotating, electromotive force is generated in the induction coil due to the change of magnetic resistance of the magnetic circuit, the voltage generated by the induction potential of the test sensor is related to the rotating speed of the induction shaft collar, the voltage is in direct proportion to the rotating speed, the detected information is transmitted to the display, and the display transmits and displays the detected information.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic view of a support stage according to the present invention;
FIG. 5 is a schematic view of the rotating lever of the present invention;
FIG. 6 is a schematic view of the structure of the speed reducer body of the present invention;
FIG. 7 is a schematic view of the junction box of the present invention;
fig. 8 is a schematic view of the fitting seat structure of the present invention.
In the figure: 1. a support table; 101. a telescopic rod; 102. a base plate; 103. a support column; 2. a housing; 201. a supporting seat; 202. a stator core; 203. a stator winding group; 204. a front closure cap; 205. a support bearing; 206. a heat sink; 207. an insulating plate; 208. a rubber handle; 3. rotating the rod; 301. a rotor set; 302. a fan blade; 303. a wear plate; 304. positioning a bearing; 305. a limit bearing; 306. a connector; 307. an induction collar; 4. a rear closure cap; 401. a support ring; 402. a vent cover; 403. a heat conductive sheet; 5. a speed reducer body; 501. a magnetic isolation net; 502. energizing a magnetic group; 503. a movable cavity; 504. an electromagnetic pole plate; 505. a movable extrusion plate; 506. a spring; 507. fixing the magnetic plate; 6. a junction box; 601. a fixed seat; 602. a weak magnetic relay; 603. an automatic air circuit breaker; 604. a power line; 605. assembling a cover; 606. a display; 7. a fitting seat; 701. testing the sensor; 702. a threaded seat; 703. a sensing line; 704. a through opening.
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. 1-8, an embodiment of the present invention is shown: an electromagnetic speed reducing motor with an electromagnetic protection structure and a using method thereof comprise a supporting table 1, wherein a supporting seat 201 is installed at the top of the supporting table 1 through bolts, the supporting seat 201 is fixed through the supporting table 1, the stability of the supporting seat 201 is ensured, a casing 2 at the top is conveniently supported by the supporting seat 201, the casing 2 is installed at the top of the supporting seat 201, the casing 2 is made of metal materials, the metal materials are hard, internal devices can be protected, meanwhile, the metal devices conduct heat, the heat dissipation speed of the interior of the casing 2 is accelerated, a rear sealing cover 4 is installed at the rear end of the casing 2 through bolts, the rear sealing cover 4 is fixed on the casing 2 through bolts, a user can conveniently disassemble and assemble the rear sealing cover 4, a front sealing cover 204 is installed at the front end of the casing 2, the front sealing cover 204 is installed on the casing 2, the stability of the front sealing cover 204 is ensured, the user of convenience carries out the assembly device, support bearing 205 is installed to the inboard of preceding closing cap 204, by the fixed inboard support bearing 205 of preceding closing cap 204, guarantees the stability of inboard support bearing 205, makes things convenient for support bearing 205 to support inboard support bearing 205, support ring 401 is installed to the inboard of back closing cap 4, spacing bearing 305 is installed to the inboard of support ring 401, dwang 3 is installed to the inboard of spacing bearing 305, is fixed support ring 401 by back closing cap 4, guarantees the stability of support ring 401, carries out spacingly to inboard spacing bearing 305 through support ring 401, guarantees that spacing bearing 305 can steadily rotate, and spacing bearing 305 rotates and drives inboard dwang 3 and rotate for dwang 3 can stably rotate, dwang 3 is installed in support bearing 205's inboard, the front end of the front sealing cover 204 is provided with a speed reducer body 5 through a bolt, the speed reducer body 5 supports the rotating rod 3 on the inner side, the rotating rod 3 is decelerated through equipment inside the speed reducer body 5, the rotating speed of the device can be conveniently adjusted by workers, the speed reducer body 5 is positioned on the outer side of the rotating rod 3, the front end of the speed reducer body 5 is welded and provided with an attaching seat 7, the attaching seat 7 is arranged on the output end of the motor and is used for being fixedly connected with external equipment, a user can conveniently install the device on a specified position, and the rotating rod 3 extends to the front end of the attaching seat 7;
the outer wall of the machine shell 2 is provided with a fixed seat 601, one side of the fixed seat 601 is provided with a junction box 6, the inner side of the junction box 6 is provided with a weak magnetic relay 602, the machine shell 2 fixes the fixed seat 601 to ensure the stability of the fixed seat 601, the junction box 6 is fixed through the fixed seat 601 to ensure the stability of the junction box 6, the junction box 6 fixes the weak magnetic relay 602 inside, the weak magnetic relay 602 ensures that the motor works under a magnetic field with certain strength, the magnetic field cannot be weakened or disappear, the rapid increase of the rotating speed of the motor is avoided, even the phenomenon of runaway is avoided, in a magnetic loop of the motor, the weak magnetic relay 602 is connected to realize the weak magnetic protection of the motor, and in the starting and running processes of the motor, when the weak magnetic current value reaches the action value of the weak magnetic relay 602, the relay is attracted, so that a contact connected in series in a control circuit is normally open and the motor is allowed to maintain normal running.
Automatic air circuit breaker 603 is installed to terminal box 6's inboard, automatic air circuit breaker 603 is used for the circuit on the connecting device, when the circuit on the device goes wrong in the transmission power process, automatic air circuit breaker 603 can be quick breaks the circuit, make the power transmission disconnection between motor and the power, avoid electric power to continue the transmission, cause bigger danger, the peripheral circuit of device can not receive the influence because a circuit goes wrong, and automatic air circuit breaker 603 is located the rear of weak magnetic relay 602, equipment lid 605 is installed to one side gomphosis of terminal box 6, run through on the outer wall of equipment lid 605 and install display 606, power cord 604 is installed through running through at the top of terminal box 6, be connected external power source with terminal box 6 through power cord 604, make things convenient for power cord 604 to transmit the electric energy, equipment lid 605 is installed on terminal box 6, make things convenient for the staff to carry out dismouting equipment lid 605, show the inside voltage of device that detects and the rotational speed of dwang 3 through display 606.
The through hole 704 is formed in the inner side of the fitting seat 7, the rotating rod 3 is installed on the inner side of the through hole 704 in a penetrating mode, the through hole 704 provides a rotating space for the rotating rod 3, power transmission of the rotating rod 3 is facilitated, the threaded seat 702 is installed on the outer wall of the top of the fitting seat 7 in a penetrating mode through threads, the testing sensor 701 is installed at the bottom of the threaded seat 702, the testing sensor 701 is located at the top of the rotating rod 3, the sensing wire 703 is installed at the top of the threaded seat 702, the testing sensor 701 is fixed on the fitting seat 7 through the threaded seat 702, a user can conveniently assemble and disassemble the testing sensor 701, when the rotating process of the rotating rod 3 drives the induction collar 307 to rotate, a coil inside the testing sensor 701 can generate magnetic force lines, the induction collar 307 can cut the magnetic force lines due to rotation, an electromotive force is generated in the induction coil due to magnetic resistance change, the size of a voltage collar generated by the induction potential of the testing sensor 701 is related to the rotating speed of the induction collar 307, the voltage is in direct proportion to the rotating speed, the detected information is transmitted and displayed by the display 606.
The bottom of brace table 1 is connected with telescopic link 101 through the connecting piece, the bottom of telescopic link 101 is connected with bottom plate 102 through the connecting piece, support column 103 is installed at the top of bottom plate 102, and support column 103 is located telescopic link 101's rear, the bottom at brace table 1 is installed through the connecting piece in the top of support column 103, pass through the bolt with bottom plate 102 and install subaerial, guarantee the stability of device, then user control telescopic link 101 extension, telescopic link 101 extension drives 1 front end rebound of top brace table, support the rear end of brace table 1 through support column 103 simultaneously, the person of facilitating the use adjusts the angle that the motor needs to adjust as required, make the output and the connecting device of motor can the even joint. Install stator core 202 on the inner wall of casing 2, stator winding group 203 is installed to stator core 202's inboard, run through on the outer wall of casing 2 and install fin 206, the top welding of fin 206 has insulation board 207, rubber handle 208 is installed at insulation board 207's top, stator winding group 203 passes through stator core 202 fixed inside stator winding group 203, guarantee that stator winding group 203 can even running, give stator winding group 203 with electric power transmission, the inside circular telegram of stator winding group 203 produces driving magnetic field, be used for driving inboard rotor group 301 and rotate, fin 206 is installed on the outer wall of casing 2, make things convenient for fin 206 to go out the heat through casing 2 transmission, conveniently provide the place of a gripping for the staff when the device electric leakage through insulation board 207, convenient to use person carries out grabbing device through rubber handle 208.
The outer surface mounting of dwang 3 has rotor assembly 301, and rotor assembly 301 is located the inboard of stator winding group 203, the outer surface mounting of dwang 3 has antifriction plate 303, and antifriction plate 303 is located rotor assembly 301's the place ahead, the outer surface mounting of dwang 3 has location bearing 304, location bearing 304 is installed in the inside of speed reducer body 5, and location bearing 304 is located the place ahead of antifriction plate 303, connector 306 is installed to dwang 3 front end, the rear end of dwang 3 runs through limit bearing 305 and installs flabellum 302, the outer surface mounting of dwang 3 has response axle collar 307, and response axle collar 307 is located the below of test sensor 701, rotor assembly 301 drives inboard dwang 3 and rotates, dwang 3 rotates the antifriction plate 303 that drives the outside, location bearing 304, limit bearing 305 and flabellum 302 rotate, flabellum 302 rotates and drives flabellum 302 and rotates and drives the air current and moves, accelerate the radiating rate of device, guarantee that the inside temperature of casing 2 is normal.
The back of back closing cap 4 installs conducting strip 403, and conducting strip 403 is located the outside of support ring 401, and the back threaded mounting of back closing cap 4 has ventilation lid 402, and ventilation lid 402 is located the outside conducting strip 403 of conducting strip 403 and comprises the material that the thermal conductivity is better, makes things convenient for conducting strip 403 to go out the inside heat transmission of back closing cap 4 for the radiating rate of device, has seted up the through-hole on the ventilation lid 402, guarantees the removal of air current.
The inner wall of the speed reducer body 5 is provided with a magnetic isolation net 501, the magnetic isolation net 501 is used for isolating an external magnetic field from an internal magnetic field to avoid the influence of the external magnetic field on an internal device, the speed reducer body 5 is internally provided with a power-on magnetic group 502, the speed reducer body 5 is internally provided with a movable cavity 503, the inner side of the movable cavity 503 is movably provided with a wear-resistant plate 303, the rear wall of the movable cavity 503 is provided with an electromagnetic pole plate 504, the electromagnetic pole plate 504 is electrically connected with the power-on magnetic group 502, the rear wall of the movable cavity 503 is provided with a spring 506, the spring 506 is positioned at the outer side of the rotating rod 3, the front end of the spring 506 is provided with a movable extrusion plate 505, the movable extrusion plate 505 is positioned at the outer side of the rotating rod 3, and the movable extrusion plate 505 is positioned at the rear of the wear-resistant plate 303, the fixed magnetic plate 507 is installed on the back surface of the movable extrusion plate 505, the fixed magnetic plate 507 corresponds to the electromagnetic pole plate 504, the energized magnetic group 502 is energized, an electromagnetic field is generated, magnetic force is transmitted to the electromagnetic pole plate 504, the magnetic poles on the face, opposite to the fixed magnetic plate 507, of the electromagnetic pole plate 504 are anodes, the face, opposite to the electromagnetic pole plate 504, of the fixed magnetic plate 507 is an anode, the fixed magnetic plate 507 is pushed forward by the electromagnetic pole plate 504 according to the principle that like poles repel, the fixed magnetic plate 507 moves forward to drive the movable extrusion plate 505 to move forward, so that the movable extrusion plate 505 is in contact with one face of the wear plate 303, the rotating speed of the wear plate 303 is reduced through friction, and the rotating speed of the wear plate 303 is reduced to reduce the rotating speed of the rotating rod 3.
Further, the working steps of the device are as follows:
s1, firstly, a worker installs a bottom plate 102 on the ground through bolts to ensure the stability of the device, then the user controls the extension of an extension rod 101, the extension rod 101 extends to drive the front end of a top supporting table 1 to move upwards, the angle required to be adjusted by the motor can be conveniently adjusted by the user as required, so that the output end of the motor can be stably connected with a connecting device, then the user penetrates through the front end of an attaching seat 7 through the bolts, the attaching seat 7 is fixed on the connecting device through the bolts, meanwhile, the connecting device is connected with a connector 306 through threads, then, the user connects an external power supply with a junction box 6 through a power line 604, an automatic air breaker 603 in the junction box 6 is electrically connected with the power line 604, when a circuit on the device has a problem in the power transmission process, the automatic air breaker 603 can quickly break the circuit, the power transmission between the motor and the power supply is disconnected, the continuous transmission of the power is avoided, and greater danger is caused, circuits around the device cannot be affected due to the fact that one circuit has a problem, then the power is transmitted to the interior of the motor, the control device operates, in the operation process of the motor, the motor is guaranteed to work under a magnetic field with certain strength through the weak magnetic relay 602, the magnetic field cannot be weakened or disappear, the rotating speed of the motor is prevented from being rapidly increased, even the phenomenon of runaway occurs, in a magnetic loop of the motor, the weak magnetic relay 602 is connected in the magnetic loop of the motor, the weak magnetic protection of the motor can be realized, in the starting and operating processes of the motor, when the weak magnetic current value reaches the action value of the weak magnetic relay 602, the relay is attracted, the normally-open contact connected in series in the control circuit is closed, and the motor is allowed to maintain normal operation;
s2, simultaneously, electric power is transmitted to the stator winding group 203, a driving magnetic field is generated by electrifying the inside of the stator winding group 203 and is used for driving the rotor group 301 on the inner side to rotate, the rotor group 301 rotates to drive the rotating rod 3 on the inner side to rotate, the rotating rod 3 rotates to drive the connector 306 at the front end to rotate, the connector 306 transmits a rotating force to a rotating device, the device is convenient to transmit power, meanwhile, the rotating rod 3 rotates to drive the wear-resisting plate 303 on the outer side, the positioning bearing 304, the limiting bearing 305 and the fan blades 302 rotate, the positioning bearing 304 rotates on the inner side of the speed reducer body 5 and is used for limiting the rotating rod 3, the rotating rod 3 is ensured to rotate stably, the limiting bearing 305 rotates on the inner side of the support ring 401, the supporting ring 401 limits the rotating rod 3 through the limiting bearing 305, the rotating rod 3 is ensured to rotate stably, the fan blades 302 rotate to drive air flow to move, the heat dissipation speed of the device is accelerated, and the internal temperature of the casing 2 is ensured to be normal;
s3, when the induction collar 307 is driven to rotate in the rotating process of the rotating rod 3, a coil in the test sensor 701 can generate magnetic lines, the induction collar 307 can cut the magnetic lines when rotating, electromotive force is generated in the induction coil due to magnetic resistance change of the magnetic circuit, the voltage generated by the induced potential of the test sensor 701 is related to the rotating speed of the induction collar 307, so that the voltage is in direct proportion to the rotating speed, when the rotating speed of the induction collar 307 exceeds the range capable of being induced by the test sensor 701, the electrified magnetic group 502 is electrified to generate an electromagnetic field, meanwhile, the magnetic force is transmitted to the electromagnetic pole plate 504, the magnetic pole on the face, opposite to the fixed magnetic plate 507, of the electromagnetic pole plate 504 is the positive pole, the face, opposite to the electromagnetic pole plate 504, of the fixed magnetic plate 507 is pushed forward by the electromagnetic pole plate 504, the fixed magnetic plate 507 moves forward to drive the movable extrusion plate 505 to move forward, so that the movable extrusion plate 505 is in contact with one face of the wear plate 303, the rotating speed of the wear plate 303 is reduced through friction, and the rotating speed of the wear plate 3 is reduced.
The working principle is as follows: firstly, a worker installs the bottom plate 102 on the ground through bolts to ensure the stability of the device, then the user controls the extension of the telescopic rod 101, the extension of the telescopic rod 101 drives the front end of the top supporting table 1 to move upwards, the user can conveniently adjust the angle required to be adjusted of the motor as required, so that the output end of the motor can be stably connected with the connecting device, then the user penetrates through the front end of the fitting seat 7 through the bolts, the fitting seat 7 is fixed on the connecting device through the bolts, meanwhile, the connecting device is connected with the connecting head 306 through threads, then the user connects an external power supply with the junction box 6 through the power line 604, the automatic air circuit breaker 603 in the junction box 6 is electrically connected with the power line 604, when a circuit on the device has a problem in the process of transmitting power, the automatic air circuit breaker 603 can quickly disconnect the circuit, the power transmission between the motor and the power supply is disconnected, the continuous power transmission is avoided, the danger is more serious, the peripheral circuits of the device cannot be influenced because one circuit has a problem, then the power is transmitted to the inside of the motor, the control device operates, in the operation process of the motor, the motor is ensured to work under a magnetic field with certain strength through the weak magnetic relay 602, the magnetic field is not weakened or disappeared, the rotation speed of the motor is prevented from rapidly increasing, even the phenomenon of galloping occurs, in the magnetic loop of the motor, the weak magnetic relay 602 is connected in to realize the weak magnetic protection of the motor, in the starting and operating process of the motor, when the weak magnetic current value reaches the action value of the weak magnetic relay 602, the relay is attracted, the normally open contact connected in series in the control circuit is closed, the motor is allowed to maintain normal operation, and meanwhile, the power is transmitted to the stator winding group 203, the stator winding set 203 is internally electrified to generate a driving magnetic field for driving the rotor set 301 at the inner side to rotate, the rotor set 301 rotates to drive the rotating rod 3 at the inner side to rotate, the rotating rod 3 rotates to drive the connector 306 at the front end to rotate, the connector 306 transmits the rotating force to the rotating device, the device is convenient to transmit power, meanwhile, the rotating rod 3 rotates to drive the wear-resisting plate 303 at the outer side, the positioning bearing 304, the limiting bearing 305 and the fan blade 302 to rotate, the positioning bearing 304 rotates at the inner side of the speed reducer body 5 to limit the rotating rod 3, the rotating rod 3 is ensured to stably rotate, the limiting bearing 305 rotates at the inner side of the support ring 401, the support ring 401 limits the rotating rod 3 through the limiting bearing 305, the rotating rod 3 can be ensured to stably rotate, the fan blade 302 rotates to drive airflow to move, the heat dissipation speed of the device is accelerated, and the internal temperature of the casing 2 is ensured to be normal, when the rotating rod 3 is driven to rotate in the process of rotating, the coil inside the test sensor 701 can generate magnetic lines of force, the rotation of the induction collar 307 can cut the magnetic lines of force, the magnetic circuit generates electromotive force in the induction coil due to the change of magnetic resistance, the voltage generated by the induced potential of the test sensor 701 is related to the rotating speed of the induction collar 307, so that the voltage is in direct proportion to the rotating speed, when the rotating speed of the induction collar 307 exceeds the range which can be induced by the test sensor 701, the electromagnetic group 502 is electrified to generate an electromagnetic field, meanwhile, the magnetic force is transmitted to the electromagnetic pole plate 504, the magnetic pole on the surface of the electromagnetic pole plate 504 opposite to the fixed magnetic plate 507 is a positive pole, the surface of the fixed magnetic plate 507 opposite to the electromagnetic pole plate 504 is a positive pole, the fixed magnetic plate 507 is pushed forward by the electromagnetic pole plate 504 according to the repulsion principle, the fixed magnetic plate 507 moves forward to drive the movable extrusion plate 505 to move forward, the movable extrusion plate 505 is in contact with one face of the wear plate 303, the rotation speed of the wear plate 303 is slowed down through friction, and the rotation speed of the wear plate 303 is slowed down to slow down the rotation speed of the rotating rod 3.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides an electromagnetism gear motor with electromagnetism protection structure, includes brace table (1), its characterized in that: the supporting seat is characterized in that a supporting seat (201) is installed at the top of the supporting seat (1) through bolts, a casing (2) is installed at the top of the supporting seat (201), a rear sealing cover (4) is installed at the rear end of the casing (2) through bolts, a front sealing cover (204) is installed at the front end of the casing (2), a supporting bearing (205) is installed on the inner side of the front sealing cover (204), a supporting ring (401) is installed on the inner side of the rear sealing cover (4), a limiting bearing (305) is installed on the inner side of the supporting ring (401), a rotating rod (3) is installed on the inner side of the limiting bearing (305), the rotating rod (3) is installed on the inner side of the supporting bearing (205), a speed reducing body (5) is installed at the front end of the front sealing cover (204) through bolts, the speed reducing body (5) is located on the outer side of the rotating rod (3), an attaching seat (7) is installed at the front end of the speed reducing body (5) in a welding mode, and the rotating rod (3) extends to the front end of the attaching seat (7);
a fixed seat (601) is installed on the outer wall of the machine shell (2), a junction box (6) is installed on one side of the fixed seat (601), and a weak magnetic relay (602) is installed on the inner side of the junction box (6);
install on the inner wall of speed reduction organism (5) and separate magnetic net (501), internally mounted of speed reduction organism (5) has circular telegram magnetic unit (502), activity chamber (503) has been seted up to the inside of speed reduction organism (5), the inboard movable mounting in activity chamber (503) has antifriction plate (303), install electromagnetism polar plate (504) on the back wall in activity chamber (503), and electromagnetism polar plate (504) and circular telegram magnetic unit (502) electric connection, the back wall in activity chamber (503) is installed spring (506), and spring (506) are located the outside of dwang (3), activity stripper plate (505) are installed to the front end of spring (506), and activity stripper plate (505) are located the outside of dwang (3), activity stripper plate (505) are located the rear of antifriction plate (303), the back mounted of activity stripper plate (505) has fixed magnetic plate (507), and fixed magnetic plate (507) correspond with electromagnetism polar plate (504).
2. An electromagnetic deceleration motor with an electromagnetic protection structure according to claim 1, characterized in that: automatic air circuit breaker (603) are installed to the inboard of terminal box (6), and automatic air circuit breaker (603) are located the rear of weak magnetic relay (602), and equipment lid (605) are installed to one side gomphosis of terminal box (6), run through on the outer wall of equipment lid (605) and install display (606), and power cord (604) are installed in the top of terminal box (6) through running through.
3. An electromagnetic reduction motor with an electromagnetic protection structure according to claim 2, characterized in that: through-hole (704) have been seted up to the inboard of laminating seat (7), and dwang (3) run through to be installed in the inboard of running through-hole (704), and screw thread runs through on the top outer wall of laminating seat (7) and installs screw thread seat (702), and test sensor (701) are installed to the bottom of screw thread seat (702), and test sensor (701) are located the top of dwang (3), and sensing line (703) are installed at the top of screw thread seat (702).
4. An electromagnetic deceleration motor with an electromagnetic protection structure according to claim 3, characterized in that: the bottom of the supporting table (1) is connected with an expansion link (101) through a connecting piece, the bottom end of the expansion link (101) is connected with a bottom plate (102) through a connecting piece, a supporting column (103) is installed at the top of the bottom plate (102), the supporting column (103) is located behind the expansion link (101), and the top of the supporting column (103) is installed at the bottom of the supporting table (1) through a connecting piece.
5. An electromagnetic reduction motor with an electromagnetic protection structure, according to claim 4, characterized in that: install stator core (202) on the inner wall of casing (2), stator winding group (203) are installed to the inboard of stator core (202), run through on the outer wall of casing (2) and install fin (206), and the top welding of fin (206) has insulation board (207), and rubber handle (208) are installed at the top of insulation board (207).
6. An electromagnetic deceleration motor with an electromagnetic protection structure according to claim 5, characterized in that: the surface mounting of dwang (3) has rotor assembly (301), and rotor assembly (301) are located the inboard of stator winding group (203), the surface mounting of dwang (3) has antifriction plate (303), and antifriction plate (303) are located the place ahead of rotor assembly (301), the surface mounting of dwang (3) has location bearing (304), the inside at speed reducer body (5) is installed in location bearing (304), and location bearing (304) are located the place ahead of antifriction plate (303), connector (306) are installed to dwang (3) front end, the rear end of dwang (3) runs through spacing bearing (305) and installs flabellum (302), the surface mounting of dwang (3) has response axle collar (307), and response axle collar (307) are located the below of test sensor (701).
7. An electromagnetic reduction motor with an electromagnetic protection structure, according to claim 6, characterized in that: the back of the rear closing cover (4) is provided with a heat conducting fin (403), the heat conducting fin (403) is positioned on the outer side of the support ring (401), the back of the rear closing cover (4) is provided with a ventilation cover (402) in a threaded mode, and the ventilation cover (402) is positioned on the outer side of the heat conducting fin (403).
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| CN202111312140.9A CN114123666B (en) | 2021-11-08 | 2021-11-08 | Electromagnetic speed reducing motor with electromagnetic protection structure and use method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753245A (en) * | 2015-03-12 | 2015-07-01 | 江苏大学 | Electric wheel based friction-electromagnetic combined braking structure |
| CN205986116U (en) * | 2016-08-24 | 2017-02-22 | 宁夏创耀信科技有限公司 | Pre - protection motor |
| CN207766079U (en) * | 2018-01-19 | 2018-08-24 | 许海明 | A kind of motor base that stablizing effect is good |
| CN109274194A (en) * | 2018-10-08 | 2019-01-25 | 嘉兴学院 | A kind of motor with braking function |
| JP2019217969A (en) * | 2018-06-21 | 2019-12-26 | 株式会社京三製作所 | Electric point machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210669773U (en) * | 2019-11-06 | 2020-06-02 | 西安合升动力科技有限公司 | Energy-saving speed reducing motor with brake |
-
2021
- 2021-11-08 CN CN202111312140.9A patent/CN114123666B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753245A (en) * | 2015-03-12 | 2015-07-01 | 江苏大学 | Electric wheel based friction-electromagnetic combined braking structure |
| CN205986116U (en) * | 2016-08-24 | 2017-02-22 | 宁夏创耀信科技有限公司 | Pre - protection motor |
| CN207766079U (en) * | 2018-01-19 | 2018-08-24 | 许海明 | A kind of motor base that stablizing effect is good |
| JP2019217969A (en) * | 2018-06-21 | 2019-12-26 | 株式会社京三製作所 | Electric point machine |
| CN109274194A (en) * | 2018-10-08 | 2019-01-25 | 嘉兴学院 | A kind of motor with braking function |
Non-Patent Citations (1)
| Title |
|---|
| 电机-减速一体化壳体有限元分析;马银生等;《农业装备与车辆工程》;20210225;第59卷(第2期);第144-147页 * |
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