CN110611398B

CN110611398B - Brake motor

Info

Publication number: CN110611398B
Application number: CN201911008655.2A
Authority: CN
Inventors: 张继美; 杨洪开
Original assignee: Individual
Current assignee: Jiangsu Kende Power Technology Co.,Ltd.
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-12-11
Anticipated expiration: 2039-10-23
Also published as: CN110611398A

Abstract

The invention provides a brake motor, which comprises a motor body and a brake device, wherein the motor body comprises an installation casing, a front end cover is arranged at an opening at one end of the installation casing, a rear end cover is arranged at an opening at the other end of the installation casing, a rotating main shaft is coaxially arranged in the installation casing, one end of the rotating main shaft is a power output end, the other end of the rotating main shaft is an emergency stop control end extending into the brake device, a rotor is coaxially and fixedly sleeved on the rotating main shaft, a ring-shaped stator matched with the rotor is coaxially and fixedly embedded on the inner circular surface of the installation casing, the brake device comprises a friction mechanism, a limiting mechanism and an electromagnetic trigger mechanism, the friction mechanism is used for applying a braking force to the emergency stop control end of the rotating main shaft, the friction mechanism is arranged in a braking state and a non-braking state which can be mutually switched, the initial, the electromagnetic trigger mechanism is used for enabling the limiting mechanism to release limiting constraint on the friction mechanism.

Description

Brake motor

Technical Field

The invention relates to a motor, in particular to a brake motor.

Background

The motor is a rotary electric machine, it changes the electric energy into the mechanical energy, it mainly includes an electromagnet winding or distributed stator winding and a rotary armature or trochanter used for producing the magnetic field, under the effect of the rotating magnetic field of the stator winding, it has current to pass and make it rotate under the effect of magnetic field in the effective side of the stator winding, the rotational speed of the motor under the normal running state is higher, when meet the urgent situation and need to make the motor stop rapidly, because the motor itself has inertia, after receiving the stop command, can't stop rapidly, in order to solve this problem, the inventor designs an electromagnetic internal-expanding emergency stop motor that the structure is ingenious, the principle is simple, operate and use the convenience.

Disclosure of Invention

In order to solve the defects of the prior art, the invention aims to provide the electromagnetic internal expansion emergency stop motor which is ingenious in structure, simple in principle and convenient and fast to operate and use.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.

A brake motor comprises a motor body and a brake device, wherein the motor body comprises a cylindrical mounting shell with openings at two ends, a circular front end cover matched with the opening is coaxially arranged at the opening at one end of the mounting shell, a circular rear end cover matched with the opening at the other end of the mounting shell is coaxially arranged at the opening at the other end of the mounting shell, the brake device is fixedly arranged on the rear end cover, a controller for controlling a circuit is arranged on the outer circular surface of the mounting shell, a rotating main shaft is coaxially arranged in the mounting shell, one end of the rotating main shaft movably penetrates through the front end cover and extends to the outside of the mounting shell, the end is a power output end, the other end movably penetrates through the rear end cover and extends into the brake 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 mounting shell, a stator which is annular and is matched, the braking device comprises a friction mechanism, a limiting mechanism and an electromagnetic trigger mechanism, wherein the friction mechanism is used for applying braking force to the rotating spindle emergency stop control end, the friction mechanism is set to be in a braking state and a non-braking state which can be mutually switched to, the initial state is the non-braking state, the limiting 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 limiting mechanism to release limiting and constraining of the friction mechanism.

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.

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;

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.

As a further optimization or improvement of the present solution.

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 where the installation cylinder is located, 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 second threaded hole is provided with;

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 to 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 to the brake pad, the axial direction of the hinged shaft 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 in.

As a further optimization or improvement of the present solution.

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, and 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.

As a further optimization or improvement of the present solution.

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 mode is arranged between the sleeving connection barrel and the installation barrel, and the first movable block and the second movable block extend towards the armature from the first installation groove and are fixedly connected with the armature at the extending end.

As a further optimization or improvement of the present solution.

The electromagnetic trigger mechanism comprises a cylindrical iron core which is positioned in the installation cylinder and coaxially fixed and sleeved outside the rotating main shaft, wherein a coil is arranged on the iron core in a one-way winding manner, the electromagnetic trigger mechanism further comprises a via hole slip ring which is coaxially arranged on one end of the installation cylinder, which deviates from the opening end of the installation cylinder, the rotating part of the via hole slip ring is electrically connected with the coil, the fixed part of the via 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 installation cylinder, one end of the reset spring is abutted against the cylinder bottom of the installation cylinder, the other end of the reset spring is abutted against.

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 internal structure of the present invention.

Fig. 4 is a schematic structural view of the motor body.

Fig. 5 is an exploded view of the motor body.

Fig. 6 is an exploded view of the motor body.

Fig. 7 is a matching view of the braking device and the motor body.

Fig. 8 is a partial structure schematic diagram of the brake device.

Fig. 9 is a partial structure schematic diagram of the brake device.

Fig. 10 is an internal structure diagram of the brake device.

FIG. 11 is a view showing the friction mechanism engaged with the rotary spindle

Fig. 12 is a partial structural view of the friction mechanism.

Fig. 13 is a partial structural view of the friction mechanism.

Fig. 14 is a matching view of the friction mechanism and the limiting mechanism.

Fig. 15 is a partial structural schematic view of the limiting mechanism.

Fig. 16 is a partial structural schematic view of the limiting mechanism.

Fig. 17 is a partial structural schematic view of the limiting mechanism.

Fig. 18 is a partial structural schematic view of the limiting mechanism.

Fig. 19 is a partial structural schematic view of the limiting mechanism.

Fig. 20 is a view showing the engagement of the stopper mechanism with the rotary spindle.

Fig. 21 is a partial fitting view of the stopper mechanism.

Fig. 22 is a partial cross-sectional view of the spacing mechanism.

Fig. 23 is a partial structural schematic view of the limiting mechanism.

Fig. 24 is a partial structural schematic view of the limiting mechanism.

Fig. 25 is a matching view of the electromagnetic trigger mechanism and the limit mechanism.

Fig. 26 is a combination view of the electromagnetic trigger mechanism and the position limiting mechanism.

Labeled as:

100. a motor body; 110. installing a shell; 111. a front end cover; 112. a rear end cap; 113. a base plate; 114. hoisting a ring; 120. rotating the main shaft; 121. a limiting groove; 130. a rotor; 140. a stator; 150. a controller;

200. a braking device; 201. fixing the cylinder; 202. a protective cover; 203. a bearing ring; 204. a support bracket; 205. a heat radiation fan; 210. a friction mechanism; 211. mounting the cylinder; 212. a first connecting rod; 213. a second connecting rod; 214. a brake pad; 215. a brake drum; 220. a limiting mechanism; 221. sleeving a sleeve; 222a and a first mounting groove; 222b and a second mounting groove; 223. a through hole; 224. a slider; 224a, a limit raised head; 224b, square holes; 224c, a first inner sink; 225. fixing the cover plate; 225a, connecting rod III; 225b, a stabilizing cover; 226a, an inner sink groove II; 226b, a compression spring; 227. an armature; 228a, a first movable block; 228b, a socket groove one; 229a, a second movable block; 229b, a socket groove two; 229c, a trigger ramp; 230. an electromagnetic trigger mechanism; 231. an iron core; 232. a coil; 233. a via slip ring; 234. a return spring.

Detailed Description

A brake motor comprises a motor body 100 and a braking device 200, the motor body 100 comprises a cylindrical installation casing 110 with two open ends, a circular front end cover 112 matched with the installation casing 110 is coaxially arranged at the open end at one end of the installation casing 110, a circular rear end cover 112 matched with the installation casing is coaxially arranged at the open end at the other end of the installation casing, the braking device 200 is fixedly arranged on the rear end cover 112, a controller 150 for a control circuit is arranged on the outer circular surface of the installation casing 110, a rotating main shaft 120 is coaxially arranged inside the installation casing 110, one end of the rotating main shaft 120 movably penetrates through the front end cover 111 to extend to the outside of the installation casing 110 and is a power output end, the other end movably penetrates through the rear end cover 112 to extend into the braking 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 installation casing 110, a stator 140 which is in an annular shape and is matched with the rotor 130 is coaxially and, 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, wherein the friction mechanism 210 is set in a braking state and a non-braking state that can be switched to each other, and 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.

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

1. A brake motor, its characterized in that: the braking device comprises a motor body and a braking device, wherein the motor body comprises a cylindrical installation casing with openings at two ends, a circular front end cover matched with the installation casing is coaxially arranged at the opening at one end of the installation casing, a circular rear end cover matched with the installation casing is coaxially arranged at the opening at the other end of the installation casing, the braking device is fixedly arranged on the rear end cover, a controller for controlling a circuit is arranged on the outer circular surface of the installation casing, a rotating main shaft is coaxially arranged inside the installation casing, one end of the rotating main shaft movably penetrates through the front end cover to extend to the outside of the installation casing and serves as a power output end, the other end movably penetrates through the rear end cover to extend into the braking device and serves as an emergency stop control end, a rotor is coaxially and fixedly sleeved on the rotating main shaft and located in the installation casing, a stator which is annular and matched with the rotor is coaxially and fixedly embedded on the inner circular surface of the installation casing, and the braking device comprises a, 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;

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 between the end surface of the brake pad close to the installation cylinder and the installation 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 end, one end of the connecting rod is hinged to the outer circular surface of the mounting cylinder, the axial direction of a hinged shaft formed by the hinged position of the connecting rod and the mounting cylinder is perpendicular to the axial direction of the rotating main shaft, the other end of the connecting rod is hinged to the brake pad, the axial direction of the hinged shaft formed by the hinged position of the connecting rod and the brake pad is perpendicular to the axial direction of the rotating main shaft, one end of the connecting rod is hinged to the outer circular surface of the mounting cylinder, the axial direction of the hinged shaft formed by the hinged position of the connecting rod and the outer circular surface is perpendicular to the axial direction of the rotating main shaft, the other end of the connecting rod is hinged to the brake pad, the axial direction of the hinged shaft formed by the connecting rod and the hinged position of the brake pad is perpendicular to the axial direction of the rotating main.

2. A brake motor according to claim 1, wherein: 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.

3. A brake motor according to claim 1, wherein: 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;

4. A brake motor according to claim 1, wherein: 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 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 prismatic plane 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 sleeving, And an 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.

5. The brake motor of claim 4, wherein: 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 mode is arranged between the sleeving connection barrel and the installation barrel, and the first movable block and the second movable block extend towards the armature from the first installation groove and are fixedly connected with the armature at the extending end.

6. A brake motor according to claim 1 or 3, wherein: the electromagnetic trigger mechanism comprises a cylindrical iron core which is positioned in the installation cylinder and coaxially fixed and sleeved outside the rotating main shaft, wherein a coil is arranged on the iron core in a one-way winding manner, the electromagnetic trigger mechanism further comprises a via hole slip ring which is coaxially arranged on one end of the installation cylinder, which deviates from the opening end of the installation cylinder, the rotating part of the via hole slip ring is electrically connected with the coil, the fixed part of the via 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 installation cylinder, one end of the reset spring is abutted against the cylinder bottom of the installation cylinder, the other end of the reset spring is abutted against.