CN104753245A - Electric wheel based friction-electromagnetic combined braking structure - Google Patents
Electric wheel based friction-electromagnetic combined braking structure Download PDFInfo
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- CN104753245A CN104753245A CN201510109880.0A CN201510109880A CN104753245A CN 104753245 A CN104753245 A CN 104753245A CN 201510109880 A CN201510109880 A CN 201510109880A CN 104753245 A CN104753245 A CN 104753245A
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- motor
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Classifications
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/02—Fluid-pressure mechanisms
Abstract
The invention belongs to the field of electric wheel brakes, and specifically discloses an electric wheel based friction-electromagnetic combined braking structure. According to the technical scheme, the electric wheel based friction-electromagnetic combined braking structure integrates a hub motor driving system, a frictional brake system, an electromagnetic braking system and a cooling system. The electric wheel based friction-electromagnetic combined braking structure is simple in structure and compact in arrangement, can directly achieve direct driving, frictional braking, electromagnetic braking and friction-electromagnetic combined braking function of a hub motor, and can effectively cool the motor by various manners.
Description
Technical field
The invention belongs to Electric Motor Wheel brake field, particularly relate to a kind of friction based on Electric Motor Wheel-Electromagnetic heating brake structure.
Background technology
Along with the continuous lifting of automobile drive motor performance, In-wheel motor driving technology more and more receives the concern of domestic and international experts and scholars.Adopt the electric automobile of wheel hub motor Direct driver not only to instead of traditional power assembly, decrease dynamic power machine transmission mechanism, simplify chassis structure, also improve power transmission efficiency.
The electric automobile of current employing In-wheel motor driving has occurred, for the drive system of wheel hub motor study both at home and abroad at present many, but be aimed at the braking system of wheel hub motor, due to for the consideration limited hub size, mostly rest on only mounting disc formula brake both at home and abroad, but disk brake is the piston movement promoted by hydraulic oil in caliper mostly, piston presses to brake disc brake block, realizes car brakeing stop by the friction of brake disc and brake block.When galloping or brake hard, directly by piston, brake block is pressed to brake disc, long-time braking can cause the excessive wear of brake block and brake disc and both is overheated, causes the heat fading of brake, thus affects braking performance of vehicle and even cause brake fade.
Chinese Patent Application No. is 02152033.X, name is called " Wheel motor for electric driven vehicle ", disclose a kind of wheel electrical machine of electric vehicle, be fixedly connected with wheel bolt by the external rotor of the tubular outer rotor DC motor of high-power large torque, drive wheels travel, when automobile needs braking, by the friction catch of frictional disk, make vehicle parking, this can be described as the simplest Electric Motor Wheel structure of one; But this patent application exists following not enough: what (1) this patent application adopted is ventilated machine, ventilated machine is applicable to the little motor of power, but the power of motor required for electric automobile is larger, air-cooledly generally can not meet cooling requirement, need, water cooling plant is set specially and carrys out cooling motor; (2) just friction brake is provided with, and electromagnetic brake is not set, just rely on friction brake that car deceleration is stopped, long-time braking can cause the excessive wear of brake block and brake disc and both is overheated, produce the heat fading of brake, affect braking performance of vehicle and even cause brake fade.
Summary of the invention
To the deficiency that prior art exists, the invention provides a kind of friction based on Electric Motor Wheel-Electromagnetic heating brake structure, this Electric Motor Wheel structure becomes one In-wheel motor driving system, friction braking system, electormagnetic braking sytem, cooling system, described Electric Motor Wheel structure is simple, characteristics of compact layout, the Direct driver of wheel hub motor, friction catch, electromagnetic braking and friction-Electromagnetic heating braking function can be realized, and consider the cooling to motor.
The present invention realizes the technical scheme that its goal of the invention adopts: a kind of friction based on Electric Motor Wheel-Electromagnetic heating brake structure, comprises the In-wheel motor driving system, cooling system, friction braking system, the electormagnetic braking sytem that adopt three-phase permanent magnet synchronous motor;
Described In-wheel motor driving system comprises: side body, stator medial cradle, stator core in housing, stator outrigger, rotor magnetic steel, electric machine casing, rotor punching, motor outside axletree, wheel hub, motor;
Outside described motor, in housing, motor, side body is fixedly connected with electric machine casing respectively by bolt, motor rotor punching sheet has been bolted to connection inside described electric machine casing, described motor rotor punching sheet and rotor magnetic steel interference fits, thus to make outside electric machine casing, motor side body, motor rotor punching sheet, rotor magnetic steel in housing, motor be integrated, can rotate along with the rotation of rotor; Outside described motor in housing, motor side body also with axletree spline joint, thus axletree during rotor turns, can be driven to rotate;
Stator core is supported by stator medial cradle and stator outrigger, and described stator medial cradle, stator outrigger are connected with axletree respectively by bearing; And together with the inner side of the inner side of stator medial cradle, stator outrigger welds with hydraulic cylinder outer wall respectively;
Described cooling system comprises: stator medial cradle and the 4th electro hydraulic valve; The inside of described stator medial cradle is provided with oil input channel and oil road, and stator core outer wall has built oil duct, and all oil ducts communicate, thus oil can be made to circulate in stator core surrounding, takes away the heat of stator core;
Described 4th electro hydraulic valve is located on axletree, and for often driving hydraulic valve, hydraulic oil enters in the cooling oil duct of stator medial cradle by the 4th electro hydraulic valve;
Described friction braking system comprises: the first electro hydraulic valve, the second electro hydraulic valve, oil pipe, the 3rd electro hydraulic valve, hydraulic cylinder outer wall, hydraulic cylinder inwall, piston, friction plate, support bar, guide post;
Through hole has been built in the inner side of described hydraulic cylinder outer wall and stator medial cradle, is provided with the first electro hydraulic valve in through hole, and described hydraulic cylinder outer wall is also provided with the second electro hydraulic valve, described stator medial cradle is also provided with the 3rd electro hydraulic valve; Described 3rd electro hydraulic valve is connected by oil pipe with the second electro hydraulic valve; First electro hydraulic valve is all communicated with the oil input channel of stator medial cradle inside with the 3rd electro hydraulic valve;
Described hydraulic cylinder inwall is provided with guide post vertically, and its two ends are injected in hydraulic cylinder inwall; The both sides of described guide post coordinate respectively and are provided with support bar, and the outer side of cylinder of described support bar is provided with friction plate, and in cylinder, side is provided with piston, and described piston, hydraulic cylinder inwall, hydraulic cylinder outer wall form seal cavity;
Described electormagnetic braking sytem comprises: copper clad layers, electromagnetic braking coil, composite braking support, electromagnetic brake support;
Described electromagnetic brake structure is located between the left and right friction plate of support bar,
Described composite braking support is friction catch face near the outside of friction plate, the inner side of composite braking support is provided with copper clad layers, electromagnetic braking support is provided with in described composite braking support, described electromagnetic braking support is fixedly installed electromagnetic braking coil, composite braking support spline is connected with axletree, and electromagnetic braking support bearing is connected with axletree.
Described stator core is provided with stator coil.
Described support bar is provided with hole, is provided with sliding sleeve in hole, and guide post inserts in the hole of support bar.
Be hollow in the middle part of described guide post, hollow part is provided with return spring, and one end of described return spring is connected with left support bar, and the other end of return spring is connected with right support bar.
Described composite braking support is also provided with some flow-guiding mouths, and flow-guiding mouth can accelerate gas flow.
Also be provided with positioning boss between described composite braking support and electromagnetic braking support, described positioning boss ensures the gap between electromagnetic braking coil and copper clad layers.
Described axletree is also provided with speed probe.
As Fig. 1, 2, as a kind of friction based on Electric Motor Wheel-Electromagnetic heating brake structure provided by the invention shown in 5, devise the cooling system of Novel electric driving wheel: the inner side of stator medial cradle, together with the inner side of stator outrigger is welded with hydraulic cylinder outer wall respectively, two oil ducts have been built in stator medial cradle inside, an oil input channel, an oil road, oil input channel is near hydraulic cylinder outer wall, oil road is away from hydraulic cylinder outer wall, stator core outer wall has also built oil duct, and its oil input channel communicates with the oil input channel of stator medial cradle, oil road communicates with the oil road of stator support, the oil duct of stator core outer wall circularizes, thus hydraulic oil can be made to circulate in stator core surrounding, take away the heat of stator core, by hydraulic oil, heat is taken away like this, specially cooling system need not be set, simplify Electric Motor Wheel structure.
As shown in Figure 3 as a kind of friction based on Electric Motor Wheel-Electromagnetic heating brake structure provided by the invention, devise the friction braking system of Novel electric driving wheel: hydraulic oil enters high-pressure oil pipe by the 3rd hydraulic valve, again through the second hydraulic valve and then in entering between hydraulic cylinder outer wall and hydraulic cylinder inwall hydraulic cylinder, because friction braking system comprises hydraulic cylinder outer wall, hydraulic cylinder inwall, guide post, support bar, piston, return spring is equipped with in guide post inside, support bar punches and is enclosed within guide rod with sliding sleeve, so when hydraulic oil promotes the pretightning force of the return spring in piston overpowers guide post, piston and support bar can towards composite braking support-movings, friction plate presses to the friction catch face on composite braking support, produce moment of friction, moment of friction hinders the rotation of composite braking support, thus hinder the rotation of axletree, and then hinder the rotation of wheel hub, car deceleration is finally made to stop.
As shown in Figure 4 as a kind of friction based on Electric Motor Wheel-Electromagnetic heating brake structure provided by the invention, devise the electormagnetic braking sytem of Novel electric driving wheel; When passing into electric current to electromagnetic braking coil, magnetic field is produced around electromagnetic braking coil, the magnetic induction line that copper clad layers cutting electromagnetic braking coil above the composite braking support rotated produces, current vortex is produced in copper clad layers surrounding, current vortex produces current vortex braking moment under the effect of magnetic induction line, current vortex braking moment hinders the rotation of composite braking support, thus hinders axletree to rotate, and car deceleration is stopped.
Beneficial effect of the present invention:
(1) the present invention adopts friction catch and electromagnetic braking to share a composite braking support, composite braking support near solenoid while be subject to the effect of electromagnetic torque, near friction plate while be subject to the effect of friction catch moment, avoid the awkward situation of not easily arranging brake because of the size restrictions of wheel hub.
(2) electromagnetic braking support bearing of the present invention is connected with axletree, positioning boss is provided with between composite braking support and electromagnetic braking support, positioning boss ensures the gap between electromagnetic braking coil and copper clad layers, thus ensure that electromagnetic braking coil can produce stable magnetic field, electromagnetic braking moment can not change along with the prolongation of composite braking device service time, ensure that the reliability of system cloud gray model
(3) composite braking stent outer of the present invention adopts hydraulic braking, and inner side adopts electromagnetic braking, although hydraulic braking exists friction, outside hung brake dish grinds thinner and thinner, and it can not have influence on the electromagnetic braking of inner side, improves the stability of electromagnetic brake.
(4) in the middle of composite braking support of the present invention, the design of heat flow-guiding mouth achieves composite braking heat both sides and separately concentrates heat radiation in generation and centre, substantially increases the radiating effect of brake disc, is conducive to improving friction brake braking ability.
Accompanying drawing explanation
Fig. 1 is the structure diagram of a kind of friction based on Electric Motor Wheel-Electromagnetic heating braking;
Fig. 2 be a kind of friction based on Electric Motor Wheel-Electromagnetic heating braking structure on semi-axis structure sketch;
Fig. 3 is friction catch structure diagram;
Fig. 4 is electromagnetic brake structure sketch;
Fig. 5 is stator cooling oil duct sketch;
Description of reference numerals:
1-axletree; 2-elastomeric pad; 3-wheel hub; Housing outside 4-motor; 5-stator outrigger; 6-hydraulic cylinder outer wall; 7-stator coil; 8-rotor magnetic steel; 9-bolt; 10-electric machine casing; 11-rotor punching; Side body in 12-motor; 13-stator medial cradle; 14-hydraulic cylinder inwall; 15-piston; 16-first electro hydraulic valve; 17-second electro hydraulic valve; 18-oil pipe; 19-the 3rd electro hydraulic valve; 20-bearing; 21-speed probe; 22-the 4th electro hydraulic valve; 23-flow-guiding mouth; 24-copper clad layers; 25-positioning boss; 26-electromagnetic braking coil; 27-friction plate; 28-support bar; 29-piston; 30-return spring; 31-guide post; 32-stator core; 33-composite braking support; 34-electromagnetic braking face; 35-electromagnetic brake support; 36-sliding sleeve.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to this.
A kind of friction based on Electric Motor Wheel-Electromagnetic heating brake structure:
Consult Fig. 1 and Fig. 2, a kind of friction based on Electric Motor Wheel-Electromagnetic heating brake structure, comprise the In-wheel motor driving system, cooling system, friction braking system, the electormagnetic braking sytem that adopt three-phase permanent magnet synchronous motor;
Wherein In-wheel motor driving system comprises: side body 12, stator medial cradle 13, stator core 32 in housing 4, stator outrigger 5, stator coil 7, rotor magnetic steel 8, electric machine casing 10, rotor punching 11, motor outside axletree 1, wheel hub 3, motor;
Cooling system comprises: stator medial cradle 13, the 4th electro hydraulic valve 22;
Friction braking system comprises: the first electro hydraulic valve 16, second electro hydraulic valve 17, oil pipe 18, the 3rd electro hydraulic valve 19, hydraulic cylinder outer wall 6, hydraulic cylinder inwall 14, piston 15, friction plate 27, support bar 28, return spring 30, guide post 31, sliding sleeve 36 etc.;
Electormagnetic braking sytem comprises: flow-guiding mouth 23, copper clad layers 24, electromagnetic braking coil 26, electromagnetic brake support 35;
Following several situation is divided to describe the specific embodiment of the present invention in detail below
The cooling of wheel hub motor: the first electro hydraulic valve 16 controls hydraulic oil and enters hydraulic cylinder, carries out friction catch, second electro hydraulic valve 17, the 3rd electro hydraulic valve 19 control the backflow of hydraulic oil, and then reach the releasing of friction catch, and hydraulic oil flows in the cooling oil duct of stator medial cradle 13 through oil pipe 18, second, third electro hydraulic valve, 4th electro hydraulic valve 22 often drives hydraulic valve, hydraulic oil enters in the cooling oil duct of stator medial cradle 13 by the 4th electro hydraulic valve 22, the inner side of stator medial cradle 13, together with the inner side of stator outrigger 5 is welded with hydraulic cylinder outer wall 6 respectively, (3 have built two oil ducts to stator medial cradle, an oil input channel, an oil road, oil input channel is near hydraulic cylinder outer wall 6, oil road is away from hydraulic cylinder outer wall 6, stator core outer wall has also built oil duct, and its oil input channel communicates with the oil input channel of stator medial cradle 13, oil road communicates with the oil road of stator support 13, the oil duct of stator core outer wall circularizes, thus hydraulic oil can be made to circulate in stator core surrounding, take away the heat of stator core 32, thus the effect producing friction catch can either be reached, the object of the cooling to motor stator and coil can be realized again.
The driving of wheel hub motor: when driver sends driving order, controller passes into electric current (electromagnetic braking coil does not pass into electric current) to stator coil 7, stator coil produces magnetic field, the magnetic field that stator coil produces and the magnetic field interaction that rotor magnetic steel produces, drive rotor turns, the rotor rotated is rotated by side body 12 axle shaft 1 in housing 4, motor outside electric machine casing 10, motor, and axletree 1 drive hub 3 of rotation rotates, thus drives running car.
The electromagnetic braking of wheel hub motor: when driver sends electromagnetic braking order, controller passes into electric current (stator coil does not pass into electric current) to electromagnetic braking coil 26, electromagnetic braking coil 26 surrounding produces magnetic field, copper clad layers 24 above the composite braking support 34 rotated cuts the magnetic induction line that electromagnetic braking coil 26 produces, current vortex is produced in copper clad layers 24 surrounding, current vortex produces current vortex braking moment under the effect of magnetic induction line, current vortex braking moment hinders the rotation of composite braking support 34, thus hinder axletree to rotate, car deceleration is stopped.
The friction catch of wheel hub motor: when driver sends friction catch order, controller controls the first electro hydraulic valve 16 and opens, hydraulic oil enters in the hydraulic cylinder that hydraulic cylinder outer wall 6 and hydraulic cylinder inwall 14 formed from the cooling oil duct inside stator medial cradle 13 through the first electro hydraulic valve 16, hydraulic oil promotes the pretightning force that piston 15 overcomes return spring 30, now support bar 2 slides along guide post 31 under the effect of sliding sleeve 36, piston 15 moves along hydraulic cylinder outer wall 6 and hydraulic cylinder inwall 14 towards composite braking support 33 simultaneously, when friction plate 27 contacts with the friction catch face on composite braking support, produce moment of friction, the moment of friction produced hinders the rotation of composite braking support, thus stop the rotation of axletree 1 and wheel hub 3, car deceleration is stopped.
Friction-Electromagnetic heating the braking of wheel hub motor: when driver sends friction-Electromagnetic heating brake command, controller passes into electric current (stator coil does not pass into electric current) to electromagnetic braking coil 26, electromagnetic braking coil 26 surrounding produces magnetic field, copper clad layers 24 above the composite braking support 34 rotated cuts the magnetic induction line that electromagnetic braking coil 26 produces, current vortex is produced in copper clad layers 24 surrounding, current vortex produces current vortex braking moment under the effect of magnetic induction line, and current vortex braking moment hinders the rotation of composite braking support 34, meanwhile, controller controls the first electro hydraulic valve 16 and opens, hydraulic oil from the cooling oil duct inside stator medial cradle 13 through the first electro hydraulic valve 16 enter that hydraulic cylinder outer wall 6 and hydraulic cylinder inwall 14 formed hydraulic cylinder in, hydraulic oil promotes the pretightning force that piston 15 overcomes return spring 30, now support bar 28 slides along guide post 31 under the effect of sliding sleeve 36, piston 15 moves along hydraulic cylinder outer wall 6 and hydraulic cylinder inwall 14 towards composite braking support 33 simultaneously, when friction plate 27 contacts with the friction catch face on composite braking support, produce moment of friction, the moment of friction produced hinders the rotation of composite braking support, friction catch moment now and current vortex braking moment hinder the rotation of composite braking support simultaneously, and then hinder the rotation of axletree 1 and wheel hub 3, car deceleration is stopped.
Described embodiment is preferred embodiment of the present invention; but the present invention is not limited to above-mentioned execution mode; when not deviating from flesh and blood of the present invention, any apparent improvement that those skilled in the art can make, replacement or modification all belong to protection scope of the present invention.
Claims (7)
1., based on friction-Electromagnetic heating brake structure of Electric Motor Wheel, it is characterized in that, comprise In-wheel motor driving system, cooling system, friction braking system, electormagnetic braking sytem;
Described In-wheel motor driving system to comprise outside axletree (1), wheel hub (3), motor side body (12), stator medial cradle (13), stator core (32) in housing (4), stator outrigger (5), rotor magnetic steel (8), electric machine casing (10), rotor punching (11), motor;
Outside described motor, in housing (4), motor, side body (12) is fixedly connected with electric machine casing (10) respectively by bolt (9), described electric machine casing (10) inner side has been bolted to connection motor rotor punching sheet (11), described motor rotor punching sheet (11) and rotor magnetic steel (8) interference fits, thus to make outside electric machine casing (10), motor side body (12), motor rotor punching sheet (11), rotor magnetic steel (8) in housing (4), motor be integrated, can rotate along with the rotation of rotor; Outside described motor in housing (4), motor side body (12) also with axletree (1) spline joint;
Described stator core (32) is supported by stator medial cradle (13) and stator outrigger (5), and described stator medial cradle (13), stator outrigger (5) are connected with axletree (1) respectively by bearing (20); And together with the inner side of the inner side of stator medial cradle (13), stator outrigger (5) welds with hydraulic cylinder outer wall (6) respectively;
Described cooling system comprises: stator medial cradle (13) and the 4th electro hydraulic valve (22); The inside of described stator medial cradle (13) is provided with oil input channel and oil road, and stator core (32) outer wall has built oil duct, and all oil ducts communicate; Described 4th electro hydraulic valve (22) is located on axletree (1), and for often driving hydraulic valve, hydraulic oil enters in the cooling oil duct of stator medial cradle (13) by the 4th electro hydraulic valve (22);
Described friction braking system comprises: the first electro hydraulic valve (16), the second electro hydraulic valve (17), oil pipe (18), the 3rd electro hydraulic valve (19), hydraulic cylinder outer wall (6), hydraulic cylinder inwall (14), piston (15), friction plate (27), support bar (28), guide post (31);
Described hydraulic cylinder outer wall (6) has built through hole with the inner side of stator medial cradle (13), first electro hydraulic valve (16) is installed in through hole, described hydraulic cylinder outer wall (6) is also provided with the second electro hydraulic valve (17), described stator medial cradle (13) is also provided with the 3rd electro hydraulic valve (19); Described 3rd electro hydraulic valve (19) is connected by oil pipe (18) with the second electro hydraulic valve (17); First electro hydraulic valve (16) and the 3rd electro hydraulic valve (19) are all communicated with the oil input channel of stator medial cradle (13) inside;
Described hydraulic cylinder inwall (14) is provided with guide post (31) vertically, and its two ends are injected in hydraulic cylinder inwall (14); The both sides of described guide post (31) coordinate respectively and are provided with support bar (28), the outer side of cylinder of described support bar (28) is provided with friction plate (27), in cylinder, side is provided with piston (15), and described piston (15), hydraulic cylinder inwall (14), hydraulic cylinder outer wall (6) form seal cavity;
Described electromagnetic brake structure comprises: copper clad layers (24), electromagnetic braking coil (26), composite braking support (33), electromagnetic brake support (35);
Described electromagnetic brake structure is located between the left and right friction plate of support bar (28), described composite braking support (33) is friction catch face near the outside of friction plate, and the inner side of composite braking support (33) is provided with copper clad layers (24); Be provided with electromagnetic braking support (35) in described composite braking support (33), described electromagnetic braking support (35) is fixedly installed electromagnetic braking coil (26); Described composite braking support (33) is connected with axletree (1) with spline, and electromagnetic braking support (35) bearing is connected with axletree (1).
2. a kind of friction based on Electric Motor Wheel-Electromagnetic heating brake structure according to claim 1, it is characterized in that, described stator core (32) is provided with stator coil (7).
3. a kind of friction based on Electric Motor Wheel-Electromagnetic heating brake structure according to claim 1, it is characterized in that, described support bar (28) is provided with hole, be provided with sliding sleeve (36) in hole, guide post (31) inserts in the hole of support bar (28).
4. a kind of friction based on Electric Motor Wheel-Electromagnetic heating brake structure according to claim 1, it is characterized in that, described guide post (31) middle part is hollow, hollow part is provided with return spring (30), one end of described return spring (30) is connected with left support bar, and the other end of return spring (30) is connected with right support bar.
5. a kind of friction based on Electric Motor Wheel-Electromagnetic heating brake structure according to claim 1, is characterized in that, described composite braking support (33) is also provided with some flow-guiding mouths (23).
6. a kind of friction based on Electric Motor Wheel-Electromagnetic heating brake structure according to claim 1, it is characterized in that, also be provided with positioning boss (25) between described composite braking support (33) and electromagnetic braking support (35), described positioning boss (25) ensures the gap between electromagnetic braking coil (26) and copper clad layers (24).
7. a kind of friction based on Electric Motor Wheel-Electromagnetic heating brake structure according to claim 1, is characterized in that, axletree (1) is also provided with speed probe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510109880.0A CN104753245B (en) | 2015-03-12 | 2015-03-12 | A kind of friction electromagnetism composite braking structure based on Electric Motor Wheel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510109880.0A CN104753245B (en) | 2015-03-12 | 2015-03-12 | A kind of friction electromagnetism composite braking structure based on Electric Motor Wheel |
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| CN104753245A true CN104753245A (en) | 2015-07-01 |
| CN104753245B CN104753245B (en) | 2017-03-29 |
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| CN114123666A (en) * | 2021-11-08 | 2022-03-01 | 嘉兴学院 | Electromagnetic speed reducing motor with electromagnetic protection structure and use method thereof |
| CN114630971A (en) * | 2019-11-13 | 2022-06-14 | 三菱电机株式会社 | Electromagnetic brake |
| WO2023135513A1 (en) * | 2023-01-10 | 2023-07-20 | Nikoogoftaraziz Azadeh | Permanent magnet brake |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105620264A (en) * | 2015-12-28 | 2016-06-01 | 江苏大学 | Wheel-side power driving system based on double-rotor motor and control method of wheel-side power driving system |
| CN114630971A (en) * | 2019-11-13 | 2022-06-14 | 三菱电机株式会社 | Electromagnetic brake |
| CN111907498A (en) * | 2020-07-14 | 2020-11-10 | 江苏理工学院 | Intelligent detection composite brake tail end execution device and brake method thereof |
| CN114123666A (en) * | 2021-11-08 | 2022-03-01 | 嘉兴学院 | Electromagnetic speed reducing motor with electromagnetic protection structure and use method thereof |
| CN114123666B (en) * | 2021-11-08 | 2022-10-04 | 嘉兴学院 | Electromagnetic speed reducing motor with electromagnetic protection structure and use method thereof |
| WO2023135513A1 (en) * | 2023-01-10 | 2023-07-20 | Nikoogoftaraziz Azadeh | Permanent magnet brake |
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| CN104753245B (en) | 2017-03-29 |
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Effective date of registration: 20210929 Address after: 102600 room 2212, 2 tower, Pope center 3, 2 Xinghua street, Daxing District, Beijing. Patentee after: BEIJING YONGBO TECHNOLOGY Co.,Ltd. Address before: Zhenjiang City, Jiangsu Province, 212013 Jingkou District Road No. 301 Patentee before: JIANGSU University |