CN110729849B - Electromagnetic braking method of brake motor - Google Patents

Electromagnetic braking method of brake motor Download PDF

Info

Publication number
CN110729849B
CN110729849B CN201911008190.0A CN201911008190A CN110729849B CN 110729849 B CN110729849 B CN 110729849B CN 201911008190 A CN201911008190 A CN 201911008190A CN 110729849 B CN110729849 B CN 110729849B
Authority
CN
China
Prior art keywords
main shaft
groove
connecting rod
rotating main
limiting
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
Application number
CN201911008190.0A
Other languages
Chinese (zh)
Other versions
CN110729849A (en
Inventor
张继美
杨洪开
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LU'AN YONGZHEN GRIZZLY ELECTRICAL AND MECHANICAL TECHNOLOGY Co.,Ltd.
Original Assignee
Lu'an Yongzhen Grizzly Electrical And Mechanical Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lu'an Yongzhen Grizzly Electrical And Mechanical Technology Co ltd filed Critical Lu'an Yongzhen Grizzly Electrical And Mechanical Technology Co ltd
Priority to CN201911008190.0A priority Critical patent/CN110729849B/en
Publication of CN110729849A publication Critical patent/CN110729849A/en
Application granted granted Critical
Publication of CN110729849B publication Critical patent/CN110729849B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
    • H02K7/1021—Magnetically influenced friction brakes
    • H02K7/1023—Magnetically influenced friction brakes using electromagnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Braking Arrangements (AREA)

Abstract

The invention provides an electromagnetic braking method of a brake motor, which comprises the following steps: firstly, a controller control circuit enables a motor body to normally start and operate, a rotating main shaft is connected with load equipment and outputs rotating potential energy outwards from a power output end of the rotating main shaft; then, when an emergency situation needs to make the rotating main shaft stop suddenly, the controller control circuit stops supplying power to the motor body, the control circuit enables the electromagnetic trigger mechanism to be started, the electromagnetic trigger mechanism converts electric energy into a magnetic field and forms magnetic attraction force on the limiting mechanism, so that the limiting mechanism releases limiting constraint on the friction mechanism, at the moment, the friction mechanism is automatically switched from a non-braking state to a braking state and applies braking force to the rotating main shaft, and the rotating main shaft stops rotating rapidly under the action of the automatic force applied by the friction mechanism; and finally, the electromagnetic trigger mechanism is powered off and reset, the friction mechanism is switched from a braking state to a non-braking state, and the limiting mechanism restores limiting constraint on the friction mechanism.

Description

Electromagnetic braking method of brake motor
Technical Field
The invention relates to a motor, in particular to an electromagnetic braking method of a brake motor.
Background
The invention discloses a brake motor, which is a common power source element in daily production and life, converts electric energy into rotary potential energy to be output outwards, and an output shaft is connected with load equipment, so that power is provided for the load equipment, the output shaft of the brake motor can be rapidly braked and stopped, and the brake motor is widely applied to machine tool machining.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide the electromagnetic triggering emergency braking method of the motor, which has the advantages of ingenious structure, simple principle, high safety performance and convenient operation and use.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.
The electromagnetic braking method of the brake motor comprises the following steps:
a normal operation stage;
s1: the controller control circuit enables the motor body to normally start and operate, the rotating main shaft is connected with load equipment and outputs rotating potential energy outwards from a power output end of the rotating main shaft, and the load equipment normally operates;
the motor body comprises a cylindrical installation shell with openings at two ends, a circular front end cover matched with the installation shell is coaxially arranged at the opening at one end of the installation shell, a circular rear end cover matched with the opening at the other end of the installation shell is coaxially arranged at the opening at one end of the installation shell, a braking device is fixedly arranged on the rear end cover, a controller used for controlling a circuit is arranged on the outer circular surface of the installation shell, a rotating main shaft is coaxially arranged inside the installation shell, one end of the rotating main shaft movably penetrates through the front end cover to extend to the outside of the installation shell, the end is a power output end, the other end movably penetrates through the rear end cover to extend into the braking device, the end is an emergency stop control end, a rotor is coaxially and fixedly sleeved on the rotating main shaft and is positioned in the installation shell, a stator which is annular and is matched with the rotor is coaxially and fixedly embedded on the inner circular surface of the installation shell, The friction mechanism is set to be in a braking state and a non-braking state which can be mutually switched, the initial state is the non-braking state, the limit mechanism is used for limiting and constraining the friction mechanism in the non-braking state, and the electromagnetic trigger mechanism is used for enabling the limit mechanism to release the limit constraint on the friction mechanism;
(II) emergency braking stage;
s2: when an emergency needs to make the rotating main shaft stop suddenly, the controller control circuit stops supplying power to the motor body, meanwhile, the control circuit enables the electromagnetic trigger mechanism to be started, the electromagnetic trigger mechanism converts electric energy into a magnetic field and forms magnetic attraction on the limiting mechanism, so that the limiting mechanism releases limiting constraint on the friction mechanism, at the moment, the friction mechanism is automatically switched from a non-braking state to a braking state and applies braking force to the rotating main shaft, and the rotating main shaft stops rotating quickly under the action of the automatic force applied by the friction mechanism, so that the rotating main shaft finishes sudden stop;
the brake device further comprises a cylindrical fixed cylinder body with openings at two ends, the fixed cylinder body and the mounting shell are coaxially arranged, the fixed cylinder body is fixedly connected with the rear end cover, a bearing ring is coaxially and fixedly embedded in the inner circular surface of the fixed cylinder body and is far away from the rear end cover, a hollowed bearing bracket is fixedly arranged on the inner circular surface of the bearing ring, the emergency stop control end of the rotating spindle movably penetrates through the bearing bracket and is rotatably connected with the rotating spindle and the bearing bracket, and the friction mechanism, the limiting mechanism and the electromagnetic trigger mechanism are uniformly distributed in the fixed cylinder body;
the friction mechanism comprises an installation cylinder which is coaxially and fixedly sleeved on the rotating main shaft, an opening of the installation cylinder is arranged to deviate from the rear end cover, the diameter of the inner circular surface of the installation cylinder is larger than that of the rotating main shaft, a first threaded hole which penetrates through the installation cylinder along the radial direction of the installation cylinder is formed in the outer circular surface of the installation cylinder, the first threaded hole is arranged close to the cylinder bottom of the installation cylinder, three first threaded holes are formed in the first threaded hole and are arranged in an array mode along the circumferential direction of the installation cylinder, a second threaded hole which is arranged along the radial direction of the rotation main shaft is formed in the outer circular surface of the rotating main shaft, three threaded holes are formed in the second threaded hole and are matched with the threaded holes in a one-to;
the friction mechanism further comprises an annular brake drum which is coaxially and fixedly arranged on the inner circular surface of the fixed cylinder body, the brake drum is arranged close to the rear end cover, a rectangular brake pad which is arranged close to the brake drum is arranged between the brake drum and the installation cylinder, the length direction of the brake pad is parallel to the axial direction of the brake drum, the width direction of the brake pad is parallel to the tangential direction of the circumference where the brake drum is located, one end surface of the brake pad close to the brake drum is arranged into an arc-shaped surface matched with the inner circular surface of the brake drum, the brake pad and the brake drum are arranged at intervals in an initial state, a first connecting rod and a second connecting rod which are used for being hinged and connected with the first connecting rod and the second connecting rod are arranged in parallel along the length direction of the brake pad and the first connecting rod is far away from the rear end cover, the first connecting rod and the second connecting rod are in an inclined state in the initial state, and the distance between the first connecting rod, one end of the connecting rod is hinged with the outer circular surface of the mounting cylinder, the axial direction of the hinged shaft is perpendicular to the axial direction of the rotating main shaft, the other end of the connecting rod is hinged with the brake pad, the axial direction of the hinged shaft is perpendicular to the axial direction of the rotating main shaft, six brake pads are arranged in an array along the circumferential direction of the brake drum;
the electromagnetic trigger mechanism is coaxially sleeved on the rotating main shaft in a rotating way and is positioned inside the mounting cylinder, and the electromagnetic electric shock mechanism is used for applying magnetic attraction to the limiting mechanism;
the limiting mechanism comprises a hexagonal prism-shaped sleeve joint barrel which is coaxially sleeved on the rotating main shaft in a rotating mode, a first mounting groove and a second mounting groove which are arranged in a crossed mode in a cross mode are formed in the prismatic plane of the sleeve joint barrel, the length direction of the first mounting groove is parallel to the axial direction of the sleeve joint barrel and penetrates through the sleeve joint barrel, the width direction of the first mounting groove is parallel to the tangential direction of the circumference of the sleeve joint barrel, the groove depth direction is arranged along the radial direction of the sleeve joint barrel, the length direction of the second mounting groove is parallel to the width direction of the first mounting groove, the width direction of the second mounting groove is parallel to the length direction of the first mounting groove, the groove depth direction is arranged along the radial direction of the sleeve joint barrel, a through hole penetrating along the groove depth direction of the second mounting groove is formed in the groove bottom of the second mounting groove, a rectangular sliding block matched with the second mounting, an annular limiting groove is coaxially arranged on the outer circular surface of the rotating main shaft, the limiting groove is matched with the limiting raised head, the limiting raised head movably penetrates through the through hole to be movably clamped in the limiting groove in an initial state, a fixed cover plate is further arranged on the prismatic plane of the sleeve joint barrel, a third connecting rod for being in hinged connection with the fixed cover plate is arranged between the fixed cover plate and the first connecting rod, one end of the third connecting rod is in hinged connection with the fixed cover plate, the axial direction of the hinged shaft is perpendicular to the rotating main shaft, the other end of the hinged shaft is in hinged connection with the middle position of the first connecting rod along the length direction, the axial direction of the hinged shaft is perpendicular to the rotating main shaft, a stabilizing cover clamped on the surface of the fixed cover plate is coaxially and fixedly arranged at one end of the sleeve joint barrel, which is far away from the rear end cover, is in rotary connection and matching with the rotating main shaft, a first inner sunken groove is, a compression spring is movably arranged in the inner sinking groove II, one end of the compression spring is abutted against the groove bottom of the inner sinking groove II, the other end of the compression spring is abutted against the groove bottom of the inner sinking groove I, and the elastic force of the compression spring always pushes the sliding block to slide towards the groove bottom of the mounting groove II;
the sliding block is provided with a square hole which penetrates along the length direction of the mounting groove along the side surface parallel to the axial direction of the sleeve barrel, a rectangular movable block II and a rectangular movable block I which are vertically arranged along the depth direction of the mounting groove I are movably arranged in the square hole, the direction of the movable block I pointing to the movable block II is consistent with the direction of the notch of the mounting groove I, the movable block I and the movable block II are fixedly connected into a whole and slide along the length direction of the mounting groove I, one end surface of the movable block I deviating from the movable block II is provided with a rectangular sleeve connecting groove I which penetrates along the width direction of the mounting groove I, one end surface of the movable block II deviating from the movable block is provided with a rectangular sleeve connecting groove II which penetrates along the width direction of the mounting groove I, the square hole is sleeved on the sleeve connecting groove I and the sleeve connecting groove II, the side wall of the sleeve connecting groove II deviating from one end of the rear end cover is provided with a trigger inclined surface, and the, a circular armature coaxially sleeved on the rotary main shaft in a rotating manner is arranged between the sleeving barrel and the mounting barrel, the first movable block and the second movable block extend towards the armature from the first mounting groove, and the extending end is fixedly connected with the armature;
in the working process of the limiting mechanism, the electromagnetic trigger mechanism attracts the armature to enable the armature to move close to the mounting cylinder and drive the first movable block and the second movable block to move close to the mounting cylinder, the trigger inclined plane extrudes the sliding block and forces the sliding block to overcome the elastic action of the compression spring and slide towards the notch of the second mounting groove, so that the limiting protruding head is separated from the limiting groove, and the limiting mechanism releases the limiting constraint on the friction mechanism; then, the electromagnetic trigger mechanism enables the limiting mechanism to drive the first connecting rod to rotate around the hinged shaft of the first connecting rod to be close to the rear end cover so that the friction mechanism is switched to a braking state, specifically, the electromagnetic trigger mechanism further attracts the armature, the first movable block and the second movable block are further close to the mounting cylinder to move, meanwhile, the first movable block and the movable block can pull the sliding block to synchronously slide towards the mounting cylinder, the sliding block can drive the sleeve cylinder to synchronously slide towards the mounting cylinder along the rotating main shaft, the third connecting rod pushes the first connecting rod to enable the first connecting rod to rotate around the hinged shaft of the first connecting rod towards the rear end cover until the brake pad is abutted against the brake drum, and the friction mechanism is switched to the braking state until the rotating main shaft is braked;
(III) a resetting stage;
s3: the electromagnetic trigger mechanism is powered off and reset, the friction mechanism is switched from a braking state to a non-braking state, and the limiting mechanism restores limiting constraint on the friction mechanism;
the electromagnetic trigger mechanism comprises a cylindrical iron core which is positioned in the mounting cylinder and coaxially fixedly sleeved outside the rotating main shaft, a coil is arranged on the iron core in a one-way winding manner, the electromagnetic trigger mechanism also comprises a through hole slip ring which is coaxially arranged at one end of the mounting cylinder, which is far away from the opening end of the mounting cylinder, the rotating part of the through hole slip ring is electrically connected with the coil, the fixed part of the through hole slip ring is electrically connected with the controller, a reset spring is sleeved between the iron core and the inner circular surface of the mounting cylinder, one end of the reset spring is abutted against the cylinder bottom of the mounting cylinder, the other end of the reset spring is abutted against;
in the resetting process, after the rotating main shaft stops rotating, the controller controls to cut off power transmission to the coil, the magnetic attraction of the iron core to the armature disappears, the reset spring pushes the armature to move away from the installation barrel to reset, the sleeve barrel moves away from the installation barrel along the rotating main shaft to reset in a sliding mode until the limiting protruding head and the limiting groove are opposite to each other, the compression spring pushes the sliding block to slide towards the bottom of the groove along the second installation groove, and the sliding block drives the limiting protruding head to be combined with the limiting groove to reset.
As a further optimization or improvement of the present solution.
The outer circular surface of the installation casing is also fixedly provided with a base plate which is arranged opposite to the controller, the base plate is provided with a plurality of threaded holes, and the outer circular surface of the installation casing is also provided with a hoisting ring which is positioned at the same side as the controller.
As a further optimization or improvement of the present solution.
Coaxial fixed cover is equipped with radiator fan on the scram control end of rotatory main shaft, the coaxial fixed cover in outside of fixed barrel is equipped with the cylindric safety cover that the opening was arranged and the one end opening was arranged towards the installation casing, and the opening part and the installation casing fixed connection of safety cover, safety cover deviate from installation casing one end and seted up the vent.
Compared with the prior art, the emergency braking device has the advantages of ingenious structure, simple principle, convenience in operation and use, compact structure, small size, safety and reliability, the mechanical brake pad and the brake drum are triggered electromagnetically to emergently brake the rotating main shaft of the motor through the friction fit of the mechanical brake pad and the brake drum.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a schematic view of the overall structure of the present invention.
Fig. 4 is a schematic view of the overall structure of the present invention.
Fig. 5 is a schematic view of the internal structure of the present invention.
Fig. 6 is a schematic structural view of the motor body.
Fig. 7 is an exploded view of the motor body.
Fig. 8 is an exploded view of the motor body.
Fig. 9 is a matching view of the braking device and the motor body.
Fig. 10 is a partial structure schematic diagram of the brake device.
Fig. 11 is a partial structure schematic diagram of the brake device.
Fig. 12 is a schematic diagram of the internal structure of the brake device.
Fig. 13 is a view showing the friction mechanism and the rotary spindle.
Fig. 14 is a view showing the friction mechanism and the rotary spindle.
Fig. 15 is a partial structural view of the friction mechanism.
Fig. 16 is a partial structural view of the friction mechanism.
Fig. 17 is a matching view of the friction mechanism and the limiting mechanism.
Fig. 18 is a matching view of the friction mechanism and the limiting mechanism.
Fig. 19 is a partial structural schematic view of the limiting mechanism.
Fig. 20 is a partial structural schematic view of the limiting mechanism.
Fig. 21 is a partial structural schematic view of the limiting mechanism.
Fig. 22 is a partial structural schematic view of the limiting mechanism.
Fig. 23 is a partial structural schematic view of the limiting mechanism.
Fig. 24 is a view showing the engagement of the stopper mechanism with the rotary spindle.
Fig. 25 is a partial fitting view of the stopper mechanism.
Fig. 26 is a partial cross-sectional view of the spacing mechanism.
Fig. 27 is a partial structural schematic view of the limiting mechanism.
Fig. 28 is a partial structural schematic view of the limiting mechanism.
Fig. 29 is a matching view of the electromagnetic trigger mechanism and the limiting mechanism.
Fig. 30 is a matching view of the electromagnetic trigger mechanism and the limiting mechanism.
Detailed Description
The electromagnetic braking method of the brake motor comprises the following steps:
a normal operation stage;
s1: the controller 150 controls the circuit to enable the motor body 100 to normally start and operate, the rotating main shaft 120 is connected with load equipment and outputs rotating potential energy outwards from the power output end of the rotating main shaft, and the load equipment normally operates;
the motor body 100 comprises a cylindrical installation housing 110 with two open ends, a circular front end cover 112 matched with the installation housing 110 is coaxially arranged at one open end of the installation housing 110, a circular rear end cover 112 matched with the installation housing is coaxially arranged at the open end of the other end of the installation housing 110, the braking device 200 is fixedly arranged on the rear end cover 112, a controller 150 for controlling a circuit is arranged on the outer circular surface of the installation housing 110, a rotating main shaft 120 is coaxially arranged inside the installation housing 110, one end of the rotating main shaft 120 movably penetrates through the front end cover 111 and extends to the outside of the installation housing 110, the end is a power output end, the other end movably penetrates through the rear end cover 112 and extends into the braking device 200, the end is an emergency stop control end, a rotor 130 is coaxially and fixedly sleeved on the rotating main shaft 120, the rotor 130 is located in the installation housing 110, a stator 140 which is annular and is matched with the rotor 130 is coaxially, the braking device 200 comprises a friction mechanism 210, a limiting mechanism 220 and an electromagnetic trigger mechanism 230, wherein the friction mechanism 210 is used for applying a braking force to the emergency stop control end of the rotating spindle 120, the friction mechanism 210 is set to be in a braking state and a non-braking state which can be switched to each other, the initial state is the non-braking state, the limiting mechanism 220 is used for limiting and constraining the friction mechanism 210 in the non-braking state, and the electromagnetic trigger mechanism 230 is used for enabling the limiting mechanism 220 to release limiting and constraining the friction mechanism 210;
(II) emergency braking stage;
s2: when an emergency needs to make the rotating spindle 120 suddenly stop, the controller 150 stops supplying power to the motor body 100, and at the same time, the control circuit starts the electromagnetic trigger mechanism 230, the electromagnetic trigger mechanism 230 converts electric energy into a magnetic field and forms a magnetic attraction force on the limiting mechanism 220, so that the limiting mechanism 220 releases the limiting constraint on the friction mechanism 210, at this time, the friction mechanism 210 is automatically switched from a non-braking state to a braking state and applies a braking force to the rotating spindle 120, and the rotating spindle 120 is rapidly stopped rotating under the action of the automatic force applied by the friction mechanism 210, so that the rotating spindle 120 completes the sudden stop;
the brake device 200 further comprises a cylindrical fixed cylinder 201 with two open ends, the fixed cylinder 201 is coaxially arranged with the installation shell 110, the fixed cylinder 201 is fixedly connected with the rear end cover 112, a bearing ring 203 is coaxially and fixedly embedded on the inner circular surface of the fixed cylinder 201, the bearing ring 203 is arranged away from the rear end cover 112, a hollow bearing bracket 204 is fixedly arranged on the inner circular surface of the bearing ring 203, the emergency stop control end of the rotating spindle 120 movably penetrates through the bearing bracket 204, the rotating spindle 120 is rotatably connected with the bearing bracket 204, and the friction mechanism 210, the limiting mechanism 220 and the electromagnetic trigger mechanism 230 are uniformly distributed in the fixed cylinder 201;
the friction mechanism 210 comprises an installation cylinder 211 which is coaxially fixed and fixedly sleeved on the rotating main shaft 120 and is provided with an opening deviating from the rear end cover 112, the diameter of the inner circular surface of the installation cylinder 211 is larger than that of the rotating main shaft 120, a first threaded hole which penetrates through the installation cylinder 211 along the radial direction of the first threaded hole is formed in the outer circular surface of the installation cylinder 211, the first threaded hole is close to the bottom of the installation cylinder 211, three first threaded holes are formed and are arrayed along the circumferential direction of the installation cylinder 211, a second threaded hole which is formed along the radial direction of the second threaded hole is formed in the outer circular surface of the rotating main shaft 120, the three second threaded holes are correspondingly matched with the threaded holes one by one, bolts which are fixedly connected with the first threaded holes and the second threaded holes penetrate through the first;
the friction mechanism 210 further comprises an annular brake drum 215 coaxially and fixedly arranged on the inner circular surface of the fixed cylinder 201, the brake drum 215 is arranged close to the rear end cover 112, a rectangular brake pad 214 arranged close to the brake drum 215 is arranged between the brake drum 215 and the mounting cylinder 211, the length direction of the brake pad 214 is parallel to the axial direction of the brake drum 215, the width direction of the brake pad 214 is parallel to the tangential direction of the circumference of the brake drum 215, one end surface of the brake pad 214 close to the brake drum 215 is arranged to be an arc-shaped surface matched with the inner circular surface of the brake drum 215, the brake pad 214 and the brake drum 215 are arranged at intervals in an initial state, a first connecting rod 212 and a second connecting rod 213 for hinged connection of the first connecting rod 212 and the second connecting rod 213 are arranged in parallel along the length direction of the brake pad 214, the first connecting rod 212 is far away from the rear end cover 112, and the first connecting rod 212 and the second connecting rod 213 are in an inclined state and the first connecting rod 213 and the rotary rod The distance between the rotating main shafts 120 is gradually increased along the axial direction of the power output end of the rotating main shaft 120, one end of a first connecting rod 212 is hinged and connected with the outer circular surface of the mounting cylinder 211, the axial direction of the hinged shaft is vertical to the axial direction of the rotating main shaft 120, the other end of the hinged shaft is hinged and connected with a brake pad 214, the axial direction of the hinged shaft is vertical to the axial direction of the rotating main shaft 120, one end of a second connecting rod 213 is hinged and connected with the outer circular surface of the mounting cylinder 211, the axial direction of the hinged shaft is vertical to the axial direction of the rotating main shaft 120, the other end of the hinged shaft is hinged and connected with the brake pad 214, the axial direction of the hinged shaft is vertical to the axial direction of the rotating main shaft 120, six brake pads 214;
the limiting mechanism 220 is coaxially and rotatably sleeved on the rotating main shaft 120, the limiting mechanism 220 is positioned between the opening of the mounting cylinder 211 and the support bracket 204, the electromagnetic trigger mechanism 230 is coaxially and rotatably sleeved on the rotating main shaft 120 and positioned inside the mounting cylinder 211, and the electromagnetic electric shock mechanism 230 is used for applying magnetic attraction to the limiting mechanism 220;
the limiting mechanism 220 comprises a hexagonal prism-shaped sleeve barrel 221 coaxially sleeved on the rotating main shaft 120 in a rotating mode, a first mounting groove 222a and a second mounting groove 222b which are arranged in a crossed mode in a cross mode are formed in the prismatic plane of the sleeve barrel 221, the length direction of the first mounting groove 222a is parallel to the axial direction of the sleeve barrel 221 and penetrates through the sleeve barrel 221, the width direction of the first mounting groove 222a is parallel to the tangential direction of the circumference of the sleeve barrel 221, the groove depth direction of the first mounting groove is arranged along the radial direction of the sleeve barrel 221, the length direction of the second mounting groove 222b is parallel to the width direction of the first mounting groove 222a, the width direction of the second mounting groove 222b is parallel to the length direction of the first mounting groove 222a, the groove depth direction of the second mounting groove 221 is arranged along the radial direction of the sleeve barrel 221, a through hole 223 penetrating along the groove depth direction is formed in the groove bottom of the second mounting groove 222b, a rectangular sliding, a limiting raised head 224b is fixedly arranged at one end of the notch of the slide block 224 deviating from the second mounting groove 222b, an annular limiting groove 121 is coaxially arranged on the outer circular surface of the rotating main shaft 120, the limiting groove 121 is matched with the limiting raised head 224b, the limiting raised head 224b movably penetrates through the through hole 223 and is movably clamped in the limiting groove 121 in the initial state, a fixed cover plate 225 is further arranged on the prismatic plane of the sleeve barrel 221, a connecting rod III 225a for hinged connection of the fixed cover plate 225 and the connecting rod I212 is arranged between the fixed cover plate 225 and the connecting rod I212, one end of the connecting rod III 225 is hinged with the fixed cover plate 225, the axial direction of the hinge shaft is perpendicular to the rotating main shaft 120, a stabilizing cover 225b clamped on the surface of the fixed cover plate 225 is coaxially and fixedly arranged at one end of the sleeve barrel 221 deviating from the rear end cover 112, and the stabilizing cover, an inner sinking groove I224 c is formed in one end face, away from the second mounting groove 222b, of the sliding block 224, an inner sinking groove II 226a corresponding to the inner sinking groove I224 c is formed in one end face, close to the sliding block 224, of the fixed cover plate 225, a compression spring 226b is movably arranged in the inner sinking groove II 226a, one end of the compression spring 226b abuts against the groove bottom of the inner sinking groove II 226a, the other end of the compression spring abuts against the groove bottom of the inner sinking groove I224 c, and the elastic force of the compression spring constantly pushes the sliding block 224 to slide towards the groove bottom of the second mounting groove 222 b;
the slider 224 is provided with a square hole 224b penetrating along the length direction of the first mounting groove 222a along the side surface parallel to the axial direction of the sleeve barrel 221, a rectangular movable block 229a and a rectangular movable block 228a which are vertically arranged along the groove depth direction of the first mounting groove 222a are movably arranged in the square hole 224b in a penetrating manner, the direction of the first movable block 228a pointing to the second movable block 229a is consistent with the direction of the notch of the first mounting groove 222a, the first movable block 228a and the second movable block 229a are fixedly connected into a whole and slide along the length direction of the first mounting groove 222a, one end surface of the first movable block 228a, which is deviated from the second movable block 229a, is provided with a rectangular sleeving groove 228b penetrating along the width direction of the first mounting groove 222a, one end surface of the second movable block 229a, which is deviated from the first movable block 228a, is provided with a rectangular sleeving groove 229b penetrating along the width direction of the first mounting groove 222a, the square hole 224b is sleeved on the sleeving groove 228, a triggering inclined plane 229c is arranged on the side wall of one end, away from the rear end cover 112, of the second sleeve connecting groove 229b, the distance between the triggering inclined plane 229c and the main rotating shaft 120 is gradually increased from the power output end of the main rotating shaft 120 to the emergency stop control end, a circular armature 227 coaxially sleeved on the main rotating shaft 120 is arranged between the sleeve connecting cylinder 221 and the mounting cylinder 211 in a rotating manner, the first movable block 228a and the second movable block 229b extend from the first mounting groove 222a to the armature 227, and the extending ends of the first movable block 228a and the second movable block 229b are fixedly connected with the armature;
in the working process of the limiting mechanism 220, the electromagnetic trigger mechanism 230 attracts the armature 227, so that the armature 227 moves close to the mounting cylinder 211 to drive the first movable block 228a and the second movable block 229a to move close to the mounting cylinder 211, the trigger inclined plane 224c extrudes the sliding block 224 and forces the sliding block 224 to slide towards the notch of the second mounting groove 222b by overcoming the elastic force of the compression spring 226b, so that the limiting raised head 224a is separated from the limiting groove 121, and the limiting mechanism 220 releases the limiting constraint on the friction mechanism 210; then, the electromagnetic trigger mechanism 230 causes the limiting mechanism 220 to drive the first connecting rod 212 to rotate around the hinge shaft thereof to be close to the rear end cover 112, so that the friction mechanism 210 is switched to the braking state, specifically, the electromagnetic trigger mechanism 230 further attracts the armature 227, the first movable block 228a and the second movable block 229a further move close to the mounting cylinder 211, meanwhile, the first movable block 228a and the first movable block 229a synchronously pull the slider 224 to slide towards the mounting cylinder 211, the slider 224 drives the sleeve cylinder 221 to synchronously slide towards the mounting cylinder 211 along the rotating spindle 120, the third connecting rod 225a pushes the first connecting rod 212 and causes the first connecting rod 212 to rotate around the hinge shaft thereof towards the rear end cover 112, until the brake pad 214 abuts against the brake drum 215, and the friction mechanism 210 is switched to the braking state until the rotating spindle 120 is braked;
(III) a resetting stage;
s3: the electromagnetic trigger mechanism 230 is powered off and reset, the friction mechanism 210 is switched from a braking state to a non-braking state, and the limiting mechanism 220 recovers limiting constraint on the friction mechanism 210;
the electromagnetic trigger mechanism 230 comprises a cylindrical iron core 231 which is positioned in the mounting cylinder 211 and coaxially fixed and sleeved outside the rotating main shaft 120, a coil 232 is arranged on the iron core 231 in a one-way winding manner, the electromagnetic trigger mechanism 230 further comprises a via hole slip ring 233 which is coaxially arranged at one end, away from the opening end, of the mounting cylinder 211, the rotating part of the via hole slip ring 233 is electrically connected with the coil 232, the fixed part of the via hole slip ring 233 is electrically connected with the controller 150, a reset spring 234 is sleeved between the iron core 231 and the inner circular surface of the mounting cylinder 211, one end of the reset spring 234 is abutted against the cylinder bottom of the mounting cylinder 211, the other end of the reset spring 234 is abutted against the armature 227, and the elastic;
in the resetting process, after the rotating main shaft 120 stops rotating, the controller 150 controls to cut off power transmission to the coil 232, the magnetic attraction of the iron core 231 to the armature 227 disappears, the reset spring 234 pushes the armature 227 to move away from the mounting barrel 211 for resetting, the sleeve barrel 221 slides along the rotating main shaft 120 away from the mounting barrel 211 for resetting until the limiting convex head 224a is opposite to the limiting groove 121, the compression spring 226b pushes the sliding block 224 to slide along the second mounting groove 222b towards the groove bottom, and the sliding block 224 drives the limiting convex head 224a to be combined with the limiting groove 121 for resetting.
An electromagnetic internal expansion emergency stop motor comprises a motor body 100 and a brake device 200, wherein the motor body 100 comprises a cylindrical mounting case 110 with openings at two ends, a circular front end cover 112 matched with the mounting case 110 is coaxially arranged at the opening at one end of the mounting case 110, a circular rear end cover 112 matched with the mounting case is coaxially arranged at the opening at the other end of the mounting case, the brake device 200 is fixedly mounted on the rear end cover 112, a controller 150 for controlling a circuit is arranged on the outer circular surface of the mounting case 110, a rotating main shaft 120 is coaxially arranged inside the mounting case 110, one end of the rotating main shaft 120 movably penetrates through the front end cover 111 to extend to the outside of the mounting case 110 and is a power output end, the other end movably penetrates through the rear end cover 112 to extend into the brake device 200 and is an emergency stop control end, a rotor 130 is coaxially and fixedly sleeved on the rotating main shaft 120, and the rotor 130 is positioned in the, the inner circumferential surface of the mounting case 110 is coaxially and fixedly embedded with a stator 140 which is annular and is matched with the rotor 130, the braking device 200 includes a friction mechanism 210 for applying a braking force to the emergency stop control end of the rotating spindle 120, a limiting mechanism 220 and an electromagnetic trigger mechanism 230, the friction mechanism 210 is set to be in a braking state and a non-braking state which can be switched to each other, the initial state is a non-braking state, the limiting mechanism 220 is used for limiting and constraining the friction mechanism 210 in the non-braking state, and the electromagnetic trigger mechanism 230 is used for enabling the limiting mechanism 220 to release limiting and constraining the friction mechanism 210.
Specifically, in order to facilitate the fixed installation of the motor body 110, a base plate 113 arranged opposite to the controller 150 is further fixedly arranged on the outer circumferential surface of the installation casing 110, a plurality of threaded holes are formed in the base plate 113, and a hoisting ring 114 located on the same side as the controller 150 is further arranged on the outer circumferential surface of the installation casing 110.
When a user uses the motor body 100 to normally start and operate by the controller 150, the rotating main shaft 120 is connected with a load device and outputs rotating potential energy to the outside through a power output end of the rotating main shaft, the load device normally operates, when an emergency situation needs to make the rotating main shaft 120 suddenly stop, the controller 150 stops supplying power to the motor body 100, the control circuit starts the electromagnetic trigger mechanism 230, the electromagnetic trigger mechanism 230 converts electric energy into a magnetic field and forms magnetic attraction on the limiting mechanism 220, the limiting mechanism 220 releases limiting constraint on the friction mechanism 210, at the moment, the friction mechanism 210 automatically switches from a non-braking state to a braking state and applies braking force to the rotating main shaft 120, the rotating main shaft 120 stops rotating rapidly under the action of the automatic force applied by the friction mechanism 210, so that the rotating main shaft 120 finishes sudden stop, and finally, the electromagnetic trigger mechanism 230 is powered off and resets, the friction mechanism 210 is switched from the braking state to the non-braking state and the limit mechanism 220 restores the limit constraint on the friction mechanism 210.
In order to effectively support the emergency stop control end of the rotating spindle 120, the braking device 200 further includes a cylindrical fixed cylinder 201 with openings at two ends, the fixed cylinder 201 is coaxially arranged with the installation housing 110, the fixed cylinder 201 is fixedly connected with the rear end cover 112, a bearing ring 203 is coaxially and fixedly embedded on the inner circular surface of the fixed cylinder 201, the bearing ring 203 is far away from the rear end cover 112, a hollow-out bearing bracket 204 is fixedly arranged on the inner circular surface of the bearing ring 203, the emergency stop control end of the rotating spindle 120 movably penetrates through the bearing bracket 204, the rotating spindle 120 is rotatably connected with the bearing bracket 204, and the friction mechanism 210, the limiting mechanism 220 and the electromagnetic trigger mechanism 230 are uniformly distributed in the fixed cylinder 201.
Because friction mechanism 210 will generate heat when applying braking force to rotary main shaft 120, for the convenience of heat dissipation, the coaxial fixed cover is equipped with radiator fan 205 on rotary main shaft 120's the scram control end, for the convenience of protecting radiator fan 205, the coaxial fixed cover in outside of fixed barrel 201 is equipped with the cylindrical protection cover 202 that the opening arranged and one end opening was arranged towards installation casing 110, the opening part and the installation casing 110 fixed connection of protection cover 202, and the vent has been seted up to protection cover 202 one end that deviates from installation casing 110.
Specifically, in order to apply a braking force to the rotating main shaft 120, the friction mechanism 210 includes a mounting cylinder 211 coaxially fixed and fixedly sleeved on the rotating main shaft 120 and having an opening deviating from the rear end cap 112, the diameter of the inner circular surface of the mounting cylinder 211 is greater than that of the rotating main shaft 120, in order to fixedly connect the mounting cylinder 211 with the rotating main shaft 110, a first threaded hole penetrating along the radial direction of the first threaded hole is formed in the outer circular surface of the mounting cylinder 211, the first threaded hole is arranged near the bottom of the mounting cylinder 211, three first threaded holes are arranged and arranged in an array along the circumferential direction of the mounting cylinder 211, a second threaded hole arranged along the radial direction of the rotating main shaft 120 is formed in the outer circular surface of the rotating main shaft 120, three second threaded holes are arranged and correspondingly matched with the first threaded holes one by one to one, a bolt fixedly connecting the first threaded hole and the, indirectly applies a braking force to the rotation main shaft 120.
More specifically, the friction mechanism 210 further includes an annular brake drum 215 coaxially and fixedly disposed on the inner circumferential surface of the fixed cylinder 201, the brake drum 215 is disposed close to the rear end cap 112, a rectangular brake pad 214 disposed close to the brake drum 215 is disposed between the brake drum 215 and the mounting cylinder 211, the length direction of the brake pad 214 is parallel to the axial direction of the brake drum 215, the width direction of the brake pad is parallel to the tangential direction of the circumference of the brake drum 215, one end surface of the brake pad 214 close to the brake drum 215 is disposed as an arc surface adapted to the inner circumferential surface of the brake drum 215, the brake pad 214 and the brake drum 215 are disposed at an interval in an initial state, a first connecting rod 212 and a second connecting rod 213 for hinged connection of the first connecting rod 212 and the second connecting rod 213 are disposed close to the mounting cylinder 211, the first connecting rod 212 and the second connecting rod 213 are disposed in parallel in the length direction of the brake pad 214, and the first, in an initial state, the first connecting rod 212 and the second connecting rod 213 are in an inclined state, the distance between the first connecting rod 212/the second connecting rod 213 and the rotating spindle 120 gradually increases along the axial direction of the power output end of the rotating spindle 120, one end of the first connecting rod 212 is hinged to the outer circular surface of the mounting cylinder 211, the axial direction of the hinged shaft is perpendicular to the axial direction of the rotating spindle 120, the other end of the first connecting rod 212 is hinged to the brake pad 214, the axial direction of the hinged shaft is perpendicular to the axial direction of the rotating spindle 120, one end of the second connecting rod 213 is hinged to the outer circular surface of the mounting cylinder 211, the axial direction of the hinged shaft is perpendicular to the axial direction of the rotating spindle 120, the other end of the hinged shaft is hinged to the brake pad 214, the axial direction of the hinged shaft is perpendicular to the axial direction of the rotating spindle 120, and.
More specifically, in order to improve the braking force obtained by friction between the brake pad 214 and the brake drum 215, the brake pad 214 is provided with six brake pads and is arranged in an array manner along the circumferential direction of the brake drum 215, and the brake pad 214 and the brake drum 215 are both made of wear-resistant materials.
In the working process of the friction mechanism 210, when the rotating spindle 120 needs to be stopped suddenly, the friction mechanism 210 needs to be switched from the non-braking state to the braking state, specifically, the electromagnetic trigger mechanism 230 enables the limiting mechanism 220 to release the limiting constraint on the friction mechanism 210 and enables the first connecting rod 212 and the second connecting rod 213 to rotate around the hinge shaft of the first connecting rod 212 and the second connecting rod 213 close to the rear end cover 112, the first connecting rod 212 and the second connecting rod 213 support the brake pad 214 to move close to the brake drum 215 and enable the brake pad 214 to be in contact with the inner circular surface of the brake drum 215, the brake pad 214 is in contact with the brake drum 215 and restricts the rotation of the mounting cylinder 211, so that the braking force is transmitted to the rotating spindle 120, and the rotating spindle 120 stops rotating quickly.
The limiting mechanism 220 is required to be independently realized in a manner that the limiting mechanism 210 in an initial state is limited and restrained in a non-braking state, and the electromagnetic trigger mechanism 230 and the limiting mechanism 220 are matched with each other to realize two functions, wherein one function is that the electromagnetic trigger mechanism 230 can enable the limiting mechanism 220 to release the limiting restraint on the friction mechanism 210, the other function is that the electromagnetic trigger mechanism 230 can enable the limiting mechanism 220 to drive the first connecting rod 212 to rotate around a hinge shaft thereof close to the rear end cover 112 so as to enable the friction mechanism 210 to be switched to a braking state, for this reason, the limiting mechanism 220 is coaxially sleeved on the rotating main shaft 120 in a rotating mode, the limiting mechanism 220 is located between an opening of the mounting cylinder 211 and the bearing bracket 204, the electromagnetic trigger mechanism 230 is coaxially sleeved on the rotating main shaft 120 in a rotating mode and located inside the mounting cylinder 211, and the electromagnetic electric shock mechanism.
Specifically, the limiting mechanism 220 includes a hexagonal prism-shaped socket 221 coaxially rotatably sleeved on the rotary spindle 120, the prismatic plane of the socket 221 is provided with a first mounting groove 222a and a second mounting groove 222b which are crossly arranged in a cross shape, the length direction of the first mounting groove 222a is parallel to the axial direction of the socket 221 and penetrates through the socket 221, the width direction is parallel to the tangential direction of the circumference of the socket 221, and the groove depth direction is arranged along the radial direction of the socket 221, the length direction of the second mounting groove 222b is parallel to the width direction of the first mounting groove 222a, the width direction is parallel to the length direction of the first mounting groove 222a, and the groove depth direction is arranged along the radial direction of the socket 221, the groove bottom of the second mounting groove 222b is provided with a through hole 223 penetrating along the groove depth direction, a rectangular sliding block 224 matched with the second mounting groove 222b is movably arranged in the second mounting groove 222b, the sliding block 224 and the second mounting groove 222b form a sliding guide fit, a limiting raised head 224b is fixedly arranged at one end of the notch of the slide block 224 deviating from the second mounting groove 222b, an annular limiting groove 121 is coaxially arranged on the outer circular surface of the rotating main shaft 120, the limiting groove 121 is matched with the limiting raised head 224b, the limiting raised head 224b movably penetrates through the through hole 223 and is movably clamped in the limiting groove 121 in the initial state, a fixed cover plate 225 is further arranged on the prismatic plane of the sleeve barrel 221, a connecting rod III 225a for hinged connection of the fixed cover plate 225 and the connecting rod I212 is arranged between the fixed cover plate 225 and the connecting rod I212, one end of the connecting rod III 225 is hinged with the fixed cover plate 225, the axial direction of the hinge shaft is perpendicular to the rotating main shaft 120, a stabilizing cover 225b clamped on the surface of the fixed cover plate 225 is coaxially and fixedly arranged at one end of the sleeve barrel 221 deviating from the rear end cover 112, and the stabilizing cover, in order to ensure that the limiting raised head 224b can be effectively clamped in the limiting groove 121 in the initial state, an inner sunken groove 224c is formed in one end face of the bottom of the sliding block 224, which is away from the second mounting groove 222b, an inner sunken groove 226a corresponding to the inner sunken groove 224c is formed in one end face of the fixed cover plate 225, which is close to the sliding block 224, the inner sunken groove 226a is movably provided with a compression spring 226b, one end of the compression spring 226b abuts against the bottom of the inner sunken groove 226a, the other end of the compression spring abuts against the bottom of the inner sunken groove 224c, and the elastic force of the compression spring always pushes the sliding block 224 to slide towards the bottom of the second mounting groove 222 b.
The limiting mechanism 220 limits and restricts the friction mechanism 210 in a non-braking state, which is specifically shown in that the elastic force of the compression spring 226b pushes the slider 224 to be abutted against the groove bottom of the second mounting groove 222b, and the limiting raised head 224a is movably clamped in the limiting groove 121, so that the sleeve barrel 221 is fixed along the axial position of the rotating main shaft 120, and the connecting rod three 225a overcomes the centrifugal action of the connecting rod one 212 to pull the connecting rod one 212, so that the brake pad 214 and the brake drum 215 keep a certain gap, and the friction mechanism 210 is limited and restricted in the non-braking state.
More specifically, in order to enable the sliding block 224 to overcome the elastic force of the pressing spring 226b and slide towards the notch of the second mounting groove 222b, so as to separate the limit protruding head 224a from the limit groove 121, the sliding block 224 is provided with a square hole 224b penetrating along the length direction of the first mounting groove 222a along the side surface parallel to the axial direction of the sleeve barrel 221, a rectangular moving block second 229a and a rectangular moving block first 228a vertically arranged along the depth direction of the first mounting groove 222a are movably inserted in the square hole 224b, the direction of the first moving block 228a pointing to the second moving block 229a is consistent with the notch direction of the first mounting groove 222a, the first moving block 228a and the second moving block 229a are fixedly connected into a whole and slide along the length direction of the first mounting groove 222a, one end surface of the first moving block 228a opposite to the second moving block 229a is provided with a rectangular sleeve connecting groove 228b penetrating along the width direction of the first mounting groove 222a, one end face of the second movable block 229a, which is far away from the first movable block 228a, is provided with a second rectangular sleeving groove 229b which penetrates along the width direction of the first mounting groove 222a, the square hole 224b is sleeved on the first sleeving groove 228b and the second sleeving groove 229b, in order to trigger the sliding block 224 to slide towards the notch of the second mounting groove 222b, a triggering inclined surface 229c is provided on the side wall of the second housing groove 229b facing away from one end of the rear end cover 112, the distance between the triggering inclined surface 229c and the rotating main shaft 120 gradually increases from the power output end of the rotating main shaft 120 to the emergency stop control end, to enable the first and second movable blocks 228a and 229a to be moved closer to the rear end cap 112, a circular armature 227 coaxially sleeved on the rotary spindle 120 in a rotating manner is arranged between the sleeve barrel 221 and the mounting barrel 211, the first movable block 228a and the second movable block 229b extend from the first mounting groove 222a to the armature 227, and the extending end of the first movable block is fixedly connected with the armature 227.
The limit mechanism 220 releases the limit constraint on the friction mechanism 210, and specifically, the electromagnetic trigger mechanism 230 attracts the armature 227, so that the armature 227 moves close to the mounting cylinder 211, and thus the first movable block 228a and the second movable block 229a move close to the mounting cylinder 211, the trigger inclined plane 224c extrudes the slider 224 and forces the slider 224 to slide towards the notch of the second mounting groove 222b against the elastic force of the compression spring 226b, so that the limit raised head 224a is separated from the limit groove 121, and the limit mechanism 220 releases the limit constraint on the friction mechanism 210; then, the electromagnetic trigger mechanism 230 causes the first connecting rod 212 to rotate around the hinge shaft thereof near the rear end cover 112 by the first limiting mechanism 220, so that the friction mechanism 210 is switched to the braking state, specifically, the electromagnetic trigger mechanism 230 further attracts the armature 227, the first movable block 228a and the second movable block 229a further move near the mounting cylinder 211, meanwhile, the first movable block 228a and the second movable block 229a synchronously pull the slider 224 to slide towards the mounting cylinder 211, the slider 224 drives the sleeve cylinder 221 to synchronously slide towards the mounting cylinder 211 along the rotating main shaft 120, the third connecting rod 225a pushes the first connecting rod 212 and causes the first connecting rod 212 to rotate around the hinge shaft thereof towards the rear end cover 112, until the brake pad 214 abuts against the brake drum 215, and the friction mechanism 210 is switched to the braking state.
In order to attract the armature 227, the electromagnetic trigger mechanism 230 includes a cylindrical iron core 231 located in the mounting cylinder 211 and coaxially fixed and sleeved outside the rotating main shaft 120, a coil 232 is unidirectionally wound on the iron core 231, in order to supply power to the coil 232, the electromagnetic trigger mechanism 230 further includes a via slip ring 233 coaxially disposed at an end of the mounting cylinder 211 opposite to the open end thereof, a rotating portion of the via slip ring 233 is electrically connected to the coil 232, a fixed portion is electrically connected to the controller 150, in order to facilitate the sliding reset of the socket sleeve 221 along the rotating spindle 120 away from the mounting cylinder 211, a return spring 234 is sleeved between the iron core 231 and the inner circular surface of the mounting cylinder 211, one end of the return spring 234 abuts against the bottom of the mounting cylinder 211, the other end of the return spring 234 abuts against the armature 227, and the elastic force of the return spring 234 always points to the armature 227 from the bottom of the mounting cylinder 211.
During the operation of the electromagnetic trigger mechanism 230, the controller 150 transmits power to the coil 232 through the through hole slip ring 233, the current in the coil 232 forms a magnetic field and magnetizes the iron core 231, the iron core 231 attracts the armature 227 and makes the armature 227 slide toward the mounting tube 211 against the elastic force of the return spring 234, firstly, the limit boss 224a and the limit groove 121 are separated from each other and the limit mechanism 220 releases the limit constraint on the friction mechanism 210, then, the iron core 227 further slides toward the mounting tube 211, so that the sleeve tube 221 slides toward the mounting tube 211 along the rotating main shaft 120, the link three 225a pushes the link one 212 and makes the link one 212 rotate toward the rear end cover 112 around the hinge shaft thereof until the brake pad 214 abuts against the brake drum 215, the friction mechanism 210 is switched from the non-braking state to the braking state, and finally, when the rotating main shaft 120 stops rotating, the controller 150 controls the cut-off of the power transmission to the coil 232, the magnetic attraction of the iron core 231 to the armature 227 disappears, the reset spring 234 pushes the armature 227 to move away from the mounting barrel 211 to reset, the sleeve barrel 221 slides along the rotating main shaft 120 away from the mounting barrel 211 to reset until the limiting convex head 224a is opposite to the limiting groove 121, the compression spring 226b pushes the sliding block 224 to slide along the second mounting groove 222b towards the groove bottom, and the sliding block 224 drives the limiting convex head 224a to be combined with the limiting groove 121 to reset.

Claims (3)

1. The electromagnetic braking method of the brake motor comprises the following steps:
a normal operation stage;
s1: the controller control circuit enables the motor body to normally start and operate, the rotating main shaft is connected with load equipment and outputs rotating potential energy outwards from a power output end of the rotating main shaft, and the load equipment normally operates;
the motor body comprises a cylindrical installation shell with openings at two ends, a circular front end cover matched with the installation shell is coaxially arranged at the opening at one end of the installation shell, a circular rear end cover matched with the opening at the other end of the installation shell is coaxially arranged at the opening at one end of the installation shell, a braking device is fixedly arranged on the rear end cover, a controller used for controlling a circuit is arranged on the outer circular surface of the installation shell, a rotating main shaft is coaxially arranged inside the installation shell, one end of the rotating main shaft movably penetrates through the front end cover to extend to the outside of the installation shell, the end is a power output end, the other end movably penetrates through the rear end cover to extend into the braking device, the end is an emergency stop control end, a rotor is coaxially and fixedly sleeved on the rotating main shaft and is positioned in the installation shell, a stator which is annular and is matched with the rotor is coaxially and fixedly embedded on the inner circular surface of the installation shell, The friction mechanism is provided with a braking state and a non-braking state which can be mutually switched, the initial state is the non-braking state, the limit mechanism is used for limiting and constraining the friction mechanism in the non-braking state, and the electromagnetic trigger mechanism is used for enabling the limit mechanism to release the limit constraint on the friction mechanism;
(II) emergency braking stage;
s2: when an emergency needs to make the rotating main shaft stop suddenly, the controller control circuit stops supplying power to the motor body, meanwhile, the control circuit enables the electromagnetic trigger mechanism to be started, the electromagnetic trigger mechanism converts electric energy into a magnetic field and forms magnetic attraction on the limiting mechanism, so that the limiting mechanism releases limiting constraint on the friction mechanism, at the moment, the friction mechanism is automatically switched from a non-braking state to a braking state and applies braking force to the rotating main shaft, and the rotating main shaft stops rotating quickly under the action of the braking force applied by the friction mechanism, so that the rotating main shaft finishes sudden stop;
the brake device further comprises a cylindrical fixed cylinder body with openings at two ends, the fixed cylinder body and the mounting shell are coaxially arranged, the fixed cylinder body is fixedly connected with the rear end cover, a bearing ring is coaxially and fixedly embedded in the inner circular surface of the fixed cylinder body and is far away from the rear end cover, a hollowed bearing bracket is fixedly arranged on the inner circular surface of the bearing ring, the emergency stop control end of the rotating spindle movably penetrates through the bearing bracket and is rotatably connected with the rotating spindle and the bearing bracket, and the friction mechanism, the limiting mechanism and the electromagnetic trigger mechanism are uniformly distributed in the fixed cylinder body;
the friction mechanism comprises an installation cylinder which is coaxially and fixedly sleeved on the rotating main shaft, an opening of the installation cylinder is arranged to deviate from the rear end cover, the diameter of the inner circular surface of the installation cylinder is larger than that of the rotating main shaft, a first threaded hole which penetrates through the installation cylinder along the radial direction of the installation cylinder is formed in the outer circular surface of the installation cylinder, the first threaded hole is arranged close to the cylinder bottom of the installation cylinder, the first threaded hole is provided with three threaded holes, the three threaded holes are arranged at equal intervals along the circumferential direction of the installation cylinder, a second threaded hole which is arranged along the radial direction of the rotation main shaft is formed in the outer circular surface of the rotating main shaft, the three threaded holes are correspondingly matched with the threaded holes one by one, a bolt which is fixedly connected;
the friction mechanism also comprises an annular brake drum which is coaxially and fixedly arranged on the inner circular surface of the fixed cylinder body, the brake drum is arranged close to the rear end cover, a rectangular brake pad which is arranged close to the brake drum is arranged between the brake drum and the mounting cylinder, the length direction of the brake pad is parallel to the axial direction of the brake drum, the width direction of the brake pad is parallel to the tangential direction of the circumference of the brake drum, one end surface of the brake pad close to the brake drum is arranged into an arc-shaped surface matched with the inner circular surface of the brake drum, the brake pad and the brake drum are arranged at intervals in an initial state, a first connecting rod and a second connecting rod which are used for being hinged and connected with the first connecting rod and the second connecting rod are arranged between the end surface of the brake pad close to the mounting cylinder and the mounting cylinder, the first connecting rod and the second connecting rod are arranged in parallel along the length direction of the brake pad and the first connecting rod is far away from the rear, the distance between the second connecting rod and the rotating main shaft is gradually increased along the axial direction of the power output end of the rotating main shaft to the emergency stop control end, one end of the first connecting rod is hinged with the outer circular surface of the mounting cylinder, the axial direction of a hinge shaft formed at the hinged position of the first connecting rod and the mounting cylinder is vertical to the axial direction of the rotating main shaft, the other end of the first connecting rod is hinged with the brake pad, the axial direction of the hinge shaft formed at the hinged position of the first connecting rod and the brake pad is vertical to the axial direction of the rotating main shaft, one end of the second connecting rod is hinged with the outer circular surface of the mounting cylinder, and the axial direction of, the other end of the brake pad is hinged with the brake pad, the axial direction of a hinged shaft formed by the hinged positions of the second connecting rods and the brake pad is perpendicular to the axial direction of the rotating main shaft, the number of the brake pads is six, the brake pads are arranged in an array mode along the circumferential direction where the brake drum is located, and the brake pads and the brake drum are made of wear-resistant materials;
the electromagnetic trigger mechanism is coaxially sleeved on the rotating main shaft in a rotating way and is positioned inside the mounting cylinder, and the electromagnetic electric shock mechanism is used for applying magnetic attraction to the limiting mechanism;
the limiting mechanism comprises a hexagonal prism-shaped sleeve joint barrel coaxially sleeved on the rotating main shaft in a rotating mode, a first mounting groove and a second mounting groove which are arranged in a crossed mode in a cross mode are formed in the side face of the sleeve joint barrel, the length direction of the first mounting groove is parallel to the axial direction of the sleeve joint barrel and penetrates through the sleeve joint barrel, the width direction of the first mounting groove is parallel to the tangential direction of the circumference of the sleeve joint barrel, the groove depth direction of the first mounting groove is arranged along the radial direction of the sleeve joint barrel, the length direction of the second mounting groove is parallel to the width direction of the first mounting groove, the width direction of the second mounting groove is parallel to the length direction of the first mounting groove, the groove depth direction of the second mounting groove is arranged along the radial direction of the sleeve joint barrel, a through hole penetrating along the groove depth direction of the second mounting groove is formed in the groove second mounting groove, a rectangular sliding, an annular limiting groove is coaxially formed in the outer circular surface of the rotating main shaft and matched with the limiting raised head, the limiting raised head movably penetrates through the through hole to be movably clamped in the limiting groove in an initial state, a fixed cover plate is further arranged on the side surface of the sleeving barrel, a third connecting rod for being hinged to the fixed cover plate is arranged between the fixed cover plate and the first connecting rod, one end of the third connecting rod is hinged to the fixed cover plate, the axial direction of a hinge shaft formed by the hinged position of the third connecting rod and the fixed cover plate is perpendicular to the rotating main shaft, the other end of the hinge shaft is hinged to the middle position of the first connecting rod along the length direction of the first connecting rod, the axial direction of the hinge shaft formed by the hinged position of the third connecting rod and the first connecting rod is perpendicular to the rotating main shaft, a stabilizing cover clamped on the surface of the fixed cover plate is coaxially and fixedly arranged at one end of the end of, One end face, close to the sliding block, of the fixed cover plate is provided with a second inner sinking groove corresponding to the first inner sinking groove, a compression spring is movably arranged in the second inner sinking groove, one end of the compression spring is abutted against the groove bottom of the second inner sinking groove, the other end of the compression spring is abutted against the groove bottom of the first inner sinking groove, and the elastic force of the compression spring always pushes the sliding block to slide towards the groove bottom of the second mounting groove;
the sliding block is provided with a square hole which penetrates along the length direction of the mounting groove along the side surface parallel to the axial direction of the sleeve barrel, a rectangular movable block II and a rectangular movable block I which are vertically arranged along the depth direction of the mounting groove I are movably arranged in the square hole, the direction of the movable block I pointing to the movable block II is consistent with the direction of the notch of the mounting groove I, the movable block I and the movable block II are fixedly connected into a whole and slide along the length direction of the mounting groove I, one end surface of the movable block I deviating from the movable block II is provided with a rectangular sleeve connecting groove I which penetrates along the width direction of the mounting groove I, one end surface of the movable block II deviating from the movable block is provided with a rectangular sleeve connecting groove II which penetrates along the width direction of the mounting groove I, the square hole is sleeved on the sleeve connecting groove I and the sleeve connecting groove II, a trigger inclined surface is arranged on the side wall of one end of the sleeve connecting groove II deviating from the rear end cover, and, a circular armature coaxially sleeved on the rotary main shaft in a rotating manner is arranged between the sleeving barrel and the mounting barrel, the first movable block and the second movable block extend towards the armature from the first mounting groove, and the extending end is fixedly connected with the armature;
in the working process of the limiting mechanism, the electromagnetic trigger mechanism attracts the armature to enable the armature to move close to the mounting cylinder and drive the first movable block and the second movable block to move close to the mounting cylinder, the trigger inclined plane extrudes the sliding block and forces the sliding block to overcome the elastic action of the compression spring and slide towards the notch of the second mounting groove, so that the limiting protruding head is separated from the limiting groove, and the limiting mechanism releases the limiting constraint on the friction mechanism; then, the electromagnetic trigger mechanism enables the limiting mechanism to drive the first connecting rod to rotate around the hinged shaft of the first connecting rod to be close to the rear end cover so that the friction mechanism is switched to a braking state, specifically, the electromagnetic trigger mechanism further attracts the armature, the first movable block and the second movable block are further close to the mounting cylinder to move, meanwhile, the first movable block and the movable block can pull the sliding block to synchronously slide towards the mounting cylinder, the sliding block can drive the sleeve cylinder to synchronously slide towards the mounting cylinder along the rotating main shaft, the third connecting rod pushes the first connecting rod to enable the first connecting rod to rotate around the hinged shaft of the first connecting rod towards the rear end cover until the brake pad is abutted against the brake drum, and the friction mechanism is switched to the braking state until the rotating main shaft is braked;
(III) a resetting stage;
s3: the electromagnetic trigger mechanism is powered off and reset, the friction mechanism is switched from a braking state to a non-braking state, and the limiting mechanism restores limiting constraint on the friction mechanism;
the electromagnetic trigger mechanism comprises a cylindrical iron core which is positioned in the mounting cylinder and coaxially fixedly sleeved outside the rotating main shaft, a coil is arranged on the iron core in a one-way winding manner, the electromagnetic trigger mechanism also comprises a through hole slip ring which is coaxially arranged at one end of the mounting cylinder, which is far away from the opening end of the mounting cylinder, the rotating part of the through hole slip ring is electrically connected with the coil, the fixed part of the through hole slip ring is electrically connected with the controller, a reset spring is sleeved between the iron core and the inner circular surface of the mounting cylinder, one end of the reset spring is abutted against the cylinder bottom of the mounting cylinder, the other end of the reset spring is abutted against;
in the resetting process, after the rotating main shaft stops rotating, the controller controls to cut off power transmission to the coil, the magnetic attraction of the iron core to the armature disappears, the reset spring pushes the armature to move away from the installation barrel to reset, the sleeve barrel moves away from the installation barrel along the rotating main shaft to reset in a sliding mode until the limiting protruding head and the limiting groove are opposite to each other, the compression spring pushes the sliding block to slide towards the bottom of the groove along the second installation groove, and the sliding block drives the limiting protruding head to be combined with the limiting groove to reset.
2. The electromagnetic braking method of a brake motor according to claim 1, wherein a ground plate disposed opposite to the controller is further fixedly disposed on the outer circumferential surface of the mounting housing, the ground plate is provided with a plurality of threaded holes, and a lifting ring disposed on the same side as the controller is further disposed on the outer circumferential surface of the mounting housing.
3. The electromagnetic braking method for a brake motor according to claim 1, wherein the emergency stop control end of the rotating shaft is coaxially fixed with a heat dissipating fan, the outer coaxial fixing sleeve of the fixing cylinder is provided with a cylindrical protection cover with an opening facing the mounting housing and an opening at one end, the opening of the protection cover is fixedly connected with the mounting housing, and the end of the protection cover opposite to the mounting housing is provided with a ventilation opening.
CN201911008190.0A 2019-10-23 2019-10-23 Electromagnetic braking method of brake motor Active CN110729849B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911008190.0A CN110729849B (en) 2019-10-23 2019-10-23 Electromagnetic braking method of brake motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911008190.0A CN110729849B (en) 2019-10-23 2019-10-23 Electromagnetic braking method of brake motor

Publications (2)

Publication Number Publication Date
CN110729849A CN110729849A (en) 2020-01-24
CN110729849B true CN110729849B (en) 2020-12-08

Family

ID=69222782

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911008190.0A Active CN110729849B (en) 2019-10-23 2019-10-23 Electromagnetic braking method of brake motor

Country Status (1)

Country Link
CN (1) CN110729849B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112910168B (en) * 2021-01-29 2021-12-31 绍兴市雪花机电有限公司 Motor with good braking effect
CN113942129A (en) * 2021-10-25 2022-01-18 湘潭大学 Brake device mounted on inside diameter slicer
CN114632883B (en) * 2022-05-18 2022-08-26 合肥合锻智能制造股份有限公司 Mechanical arm for thermal forming
CN116742888B (en) * 2023-08-14 2023-11-07 江苏华频电子科技有限公司 Brushless motor with easy heat dissipation function

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008028604A1 (en) * 2008-06-18 2009-12-24 Sew-Eurodrive Gmbh & Co. Kg Electric motor has electromagnetically operated brake, housing, rotor and stator, where rotor has shaft, rotor bundle of laminations and rotor cast part implemented as runner cage
JP2018057080A (en) * 2016-09-26 2018-04-05 日本電産サンキョー株式会社 Motor with brake
CN208908392U (en) * 2018-10-23 2019-05-28 上海浦东新区张江电机有限公司 A kind of aluminum hull electromagnetic braking motor

Also Published As

Publication number Publication date
CN110729849A (en) 2020-01-24

Similar Documents

Publication Publication Date Title
CN110729849B (en) Electromagnetic braking method of brake motor
CN110611398B (en) Brake motor
JP4169509B2 (en) Electric hand tool device safety clutch
JP4341804B2 (en) Brush cutter
EP3480831B1 (en) Actuator, remote triggering apparatus and governor
KR101582630B1 (en) Apparatus for Electrically Driving a Shaft and Method for Working the Same
KR20160098379A (en) Silicon wafer edge protection device with collision protection function
JP6116451B2 (en) Brake motor
CN206918129U (en) It is a kind of with hollow structure without excitation brake
CN110729848B (en) Brake structure of brake motor
CN116331991A (en) Power-losing disc type double-braking brake
CN212924228U (en) Novel structure elevator stopper that security performance is high
CN113059592A (en) Robot movement mechanism
KR200450659Y1 (en) Air brake device of the motor
CN112332600B (en) Motor and control system for reversing motor
CN111835140B (en) Armature component and application thereof
CN208939738U (en) Locking-type braking motor
CN217849173U (en) Over-current protection device for generator rotor
CN214578480U (en) Electric brake cylinder
CN220956545U (en) Electromagnetic brake assembly and lifter
CN220540153U (en) Novel wind vane brake for tower crane
CN220401551U (en) Tubular motor with brake device
CN217769746U (en) Three-phase brake direct-connected motor
US20200061790A1 (en) Flywheel-driven setting device
CN218591837U (en) Electric main shaft bearing protection mechanism and electric main shaft system with same

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
CB02 Change of applicant information

Address after: 230000 Zhenghui youchan office, 17 / F, block B, West Greenland center, Susong Road, Baohe District, Hefei City, Anhui Province

Applicant after: Lu'an Zhenghui youchan Electromechanical Technology Co., Ltd

Address before: 237000 intersection of Meishan North Road and Liuyuan Road, Jin'an District, Lu'an City, Anhui Province

Applicant before: Lu'an Zhenghui youchan Electromechanical Technology Co., Ltd

CB02 Change of applicant information
TA01 Transfer of patent application right

Effective date of registration: 20201120

Address after: 237000 intersection of Meishan North Road and Liuyuan Road, Jin'an District, Lu'an City, Anhui Province

Applicant after: LU'AN YONGZHEN GRIZZLY ELECTRICAL AND MECHANICAL TECHNOLOGY Co.,Ltd.

Address before: 230000 Zhenghui youchan office, 17 / F, block B, West Greenland center, Susong Road, Baohe District, Hefei City, Anhui Province

Applicant before: Lu'an Zhenghui youchan Electromechanical Technology Co.,Ltd.

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant