CN103078470A - Double-salient-pole liquid-cooling retarding device with synchronous rotating structure for self-exciting coil - Google Patents
Double-salient-pole liquid-cooling retarding device with synchronous rotating structure for self-exciting coil Download PDFInfo
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- CN103078470A CN103078470A CN2013100113378A CN201310011337A CN103078470A CN 103078470 A CN103078470 A CN 103078470A CN 2013100113378 A CN2013100113378 A CN 2013100113378A CN 201310011337 A CN201310011337 A CN 201310011337A CN 103078470 A CN103078470 A CN 103078470A
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Abstract
The invention discloses a double-salient-pole liquid-cooling retarding device with a synchronous rotating structure for a self-exciting coil, belonging to the field of automobile brake. The double-salient-pole liquid-cooling retarding device comprises a retarding device rotor (11), a retarding device stator (7), a control module and a generator device, wherein the retarding device stator (7) is fixedly arranged on a stator fixing frame (2); the retarding device rotor (11) is a toothed rotating disk with a salient-pole structure and is connected onto a driving shaft (1); an inner circle of the retarding device stator (7) is coaxial with an outer circle of the retarding device rotor (11); a retarding device coil (10) is a complete independent coil and is directly wound on the rotor (11); the coil (10) is coaxial with the rotor (11); and a generator and the coil (10) synchronously rotate. According to the double-salient liquid-cooling retarding device disclosed by the invention, due to the adoption of a self-generating mode, electric energy is saved, and huge impact on an automobile battery by the retarding device during initial start is avoided; and the retarding device coil is directly wound on the retarding device rotor, so that the trouble of assembly is reduced. In addition, the influence on the rotor from a centrifugal force is less.
Description
Technical field
The present invention relates to a kind of automobile retarder, refer in particular to a kind of self-excitation type coil synchronous rotary structure double-salient-pole liquid cooling automobile retarder, belong to the complemental brake system that vehicle is slowed down.
Technical background
Retarder is a kind of safety aid of service brake, and it to the system of vehicle transmission parts, plays the effect that reduces automobile driving speed with Braking.The most popular retarder of China is current vortex retarder at present, and it is to utilize the electromagnetism principle that the kinetic transformation of running car is dissipated for heat energy, thereby realizes the device of deceleration and braking action.It is short that current vortex retarder has the response time, noise is very little during work, and braking moment is large, and the size of braking moment can be regulated by the control exciting current, easily realize automatically control, failure rate is low, easy to maintenance, high reliability, but it is large that it has a volume weight, power consumption is large, weak heat-dissipating, the shortcoming such as braking moment decline is serious during continuous firing.Self-excitation retarder also has spontaneous electrical function simultaneously except the advantage that possesses current vortex retarder, need not increase or strengthen automobile current generator and storage battery, and lightweight, volume is little, and low noise, the advantages such as good environmental protection are installed simply.
Existing self-excitation retarder is generally by with the stator of magnet exciting coil, consist of with rotor and the electricity generation system in air channel, and its rotor is arranged on vehicle transmission and fastens, and stator coil is fixed on the vehicle frame.Electricity generation system generally is comprised of three-phase synchronous generator and rectification circuit.When electricity generation system started, generator system provided power supply for retarder, the stator coil energising, and the magnetic line of force is by rotor, and self-excitation retarder is in on-position, and the automobile kinetic transformation becomes heat energy, is dealt in the atmosphere by the rotor dispersing that rotates; When electricity generation system was closed, the stator coil no current passed through, and self-excitation retarder is in non-on-position.This structure has the advantage of saves energy, but adopt the radiating efficiency of wind-cooling heat dissipating mode lower, can not be fast and effectively with dissipation of heat in air, heat fading very easily occurs, and present speed buffer structure all includes many group coils, so that speed buffer structure is comparatively complicated, in order to guarantee the clearance constant between rotor and the stator, the assembly precision of requirement is higher, assembles cumbersome, and the coil outlet is more, and control is comparatively complicated.
The patent of invention (number of patent application is 200810243194.2) that name is called " a kind of self-excitation retarder with water-cooling system " discloses a kind of self-excitation retarder that utilizes water-cooling, although the retarder radiating effect of this structure is better, but this structure must have brushgear, thus its useful life lower shortcoming.Name is called " a kind of liquid cooling Self-inspired electric eddy current rail brake of salient pole structure " (number of patent application is 201210061808.1) and discloses a kind of self-excitation retarder of brushless structure, but the coil of this structure need be fixed on the stator inboard, outlet is by the stator complex process, reduced the water channel area, be unfavorable for heat radiation, and coil needs to separate with retarder rotor, and assembling is trouble.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing speed buffer structure, a kind of self-excitation type coil synchronous rotary structure double-salient-pole liquid-cooled retarder is provided, this Standard is simple and easy, simple in structure, be easy to control, has adjustability, adopt the brushless structure, longer service life, adopt automatic generating structure, save energy, be conducive to environmental protection, adopt the liquid cooling mode to dispel the heat, improve heat-sinking capability, solve the heat fading problem, and the retarder magnet exciting coil is rotating part, directly is wrapped on the retarder rotor, and the coil of rotation is stressed evenly, be easy to dynamic balancing, generator and coil synchronous rotary, the outlet of coil is inner at retarder, does not need to pass through water channel, reduced the trouble of assembling, the generator excitation magnetic pole is connected with the retarder stator by the stator fixed mount, keeps the radially breath of generator armature iron core and generator excitation magnetic pole, and the generator operating efficiency is improved.
Realize by the following technical solutions when of the present invention:
The present invention includes retarder rotor 11, retarder stator 7, retarder coil 10, retarder generator and control module; Retarder rotor 11 is the profile of tooth rotating disk of salient-pole structure; Shown in figure (2), retarder rotor 11 is connected on the power transmission shaft 1, and retarder stator 7 inner circles are coaxial with retarder rotor 11 cylindricals; Retarder coil 10 is complete absolute coil, directly is wound on the rotor 11, and coil 10 is coaxial with rotor 11, generator and coil 10 synchronous rotaries;
Rotor machine comprises generator excitation winding 3, generator excitation magnetic pole 4, generator armature winding 5 and generator armature iron core 6, and rotor machine is positioned at retarder rotor inside; Generator and coil 10 synchronous rotaries, the outlet of coil 10 are all inner at retarder, do not need by retarder stator 7; Generator excitation winding 3 and generator excitation magnetic pole 4 link to each other with static stator fixed mount 2, generator armature winding 5 and generator armature iron core 6 link to each other with the retarder rotor 11 of rotation, and generator armature winding 5 and retarder coil 10 are connected by rectification module; Generator excitation magnetic pole 4 is connected with retarder stator 7 by stator fixed mount 2, keeps the radially breath of generator armature unshakable in one's determination 6 and generator excitation magnetic pole 4;
Keep the 0.5-1mm gap between the salient pole cylindrical of retarder rotor 11 and retarder stator 7 inwalls.
Be useful on the water channel 8 of cooling on the retarder stator 7, water channel links to each other with radiator by water pipe, the water in the water channel 8 and the cooling water circulation in the radiator;
During a kind of self-excitation type coil synchronous rotary structure double-salient-pole liquid-cooled retarder work of the present invention, make the excitation winding energising of rotor machine by control module, therefore, produce induced electromotive force in the armature winding of rotation, this electromotive force provides voltage for the retarder coil, generation current in the retarder coil is so the retarder electromagnetic core produces the magnetic line of force.The magnetic line of force that retarder stator cutting retarder rotor sends can produce eddy current at stator inner surface, and produce the moment that hinders the rotor rotation, and this braking moment acts on the truck drive shaft by retarder rotor, thereby automobile is produced braking force.By size of current in the control module regulator generator excitation winding, can realize that the retarder braking moment regulates continuously.The heat that produces on the stator is taken away by liquid in the cooling water channel, liquid and engine cool water circulation in the water channel, and perhaps the independent cooling device with retarder circulates, and is back to the work that moves in circles in the retarder after the heat radiation.
When retarder of the present invention does not need to brake, control module is cut off current circuit in the generator excitation winding, armature winding is generation current not, there is not electric current in the retarder coil, then the retarder stator can not cut the magnetic line of force that permanent magnet sends, can not produce eddy current in the retarder stator, power transmission shaft is not subjected to braking moment, thereby removes the braking to automobile.
The major advantage of a kind of self-excitation type coil of the present invention synchronous rotary structure double-salient-pole liquid-cooled retarder is as follows:
The present invention directly the retarder coil on rotor, become one, reduce the trouble of assembling, be beneficial to the coil heat radiation, removed simultaneously coil outlet from the stator from, improved the stator manufacturability, increased the water channel area, make the retarder heat fading less.On rotor, can make centrifugal forces affect less coil winding; Generator armature coil and retarder coil together rotate, and save brushgear, and reliability is high, and is non-maintaining; The generator excitation magnetic pole is connected with the retarder stator by the stator fixed mount, keeps the radially breath of generator armature iron core and generator excitation magnetic pole, and the generator operating efficiency is improved; The generator excitation winding is made as static structures, by the adjusting of the detection of retarder rotating speed and exciting current, is easy to realize Based Intelligent Control and the cruise of retarder braking moment; Cooling water pipeline is arranged on the stator, adopt endless form that dissipation of heat is fallen, good heat dissipation effect, long-time braking moment decline is little; The retarder compact overall structure, volume mass is little.
Description of drawings
The front view of Fig. 1, structure of the present invention;
The left view of Fig. 2, structure of the present invention.
Among Fig. 1: 1, power transmission shaft, 2, stator fixed mount, 3, the generator excitation winding, 4, the generator excitation magnetic pole, 5, generator armature winding, 6, generator armature iron core, 7, the stator fixed mount, 8, water channel, 9, retarder support, 10, retarder coil, 11, retarder rotor, 12, rectification module.
Embodiment
Further specific embodiments of the invention are described below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, embodiment of the invention retarder rotor 11 links to each other with rotating shaft 1, retarder rotor 11 be tooth-shape structure as shown in Figure 2, two projections of fluted disc both sides are two salient poles of retarder rotor 11.Retarder coil 10 directly is wound on the rotor and is fixed in the rotating shaft 1.Retarder stator 7 is installed on the vehicle frame, liquid and engine cool water circulation in retarder stator 7 outside water channels 8, and perhaps the independent cooling device with retarder circulates.The armature winding 5 of generator and generator armature iron core 6 are mounted and fixed on the inwall of retarder rotor, rotating shaft 1 can drive retarder turn 11 and generator armature around 5, armature core 6 rotates.Excitation winding 3 and the excitation pole 4 of generator are fixed on the stator fixed mount 2, keep inactive state with water jacket.
When retarder is worked, control module is connected 24V power supply and generator excitation winding 3, generation current in the generator excitation winding 3 produces the magnetic line of force in the generator excitation magnetic pole 4, and the conductor in the generator armature winding 5 of rotation cuts this magnetic line of force and produces the three-phase alternating current electromotive force.This electromotive force is become direct current by the three-phase alternating current rectifier with three-phase alternating current, be transported in the retarder coil 10, make retarder coil 10 obtain excitation, so retarder electromagnetic core 11 produces the magnetic line of force.The magnetic line of force that stator 7 cutting electromagnetic cores 11 send at stator 7 interior generation eddy current, and produces the moment that hinders electromagnetic core 11 rotations, and this braking moment acts on the power transmission shaft 1 by stator fixed mount 2, thereby automobile is produced braking force.The heat that stator 7 inner surfaces produce during braking is taken away by liquid in the cooling water channel 8, and cooling fluid is back to the work that moves in circles in the retarder through behind the radiator heat-dissipation of engine water tank.
Signal by retarder gear controller or velocity transducer, electric current in the control module regulator generator excitation winding 3, electromotive force in the generator armature winding 5 changes thereupon, exciting current in the retarder coil 10 also changes, and can realize that the retarder braking moment is regulated continuously, stepping is regulated and the speed cruise function.
When not needing to brake, control unit cuts off the electric current in the generator excitation winding 3, no longer produces electric 5 kinetic potentials in the generator armature winding, retarder coil 10 is without excitation, do not produce the magnetic line of force in the electromagnetic core 11, power transmission shaft is not subjected to braking moment, thereby removes the braking to automobile.
Claims (3)
1. a self-excitation type coil synchronous rotary structure double-salient-pole liquid-cooled retarder comprises retarder rotor (11), retarder stator (7), control module and rotor machine; It is characterized in that: retarder stator (7) is fixed on the stator fixed mount (2); Retarder rotor (11) is the profile of tooth rotating disk of salient-pole structure; Retarder rotor (11) is connected on the power transmission shaft (1), and retarder stator (7) inner circle is coaxial with retarder rotor (11) cylindrical; Retarder coil (10) is complete absolute coil, directly is wound on the rotor (11), and coil (10) is coaxial with rotor (11), generator and coil (10) synchronous rotary;
Rotor machine comprises generator excitation winding (3), generator excitation magnetic pole (4), generator armature winding (5) and generator armature (6) unshakable in one's determination, and rotor machine is positioned at retarder rotor inside; Generator and coil (10) synchronous rotary, the outlet of coil (10) are all inner at retarder, do not need by retarder stator (7); Generator excitation winding (3) and generator excitation magnetic pole (4) link to each other with static stator fixed mount (2), generator armature winding (5) links to each other with the retarder rotor (11) of rotation with generator armature (6) unshakable in one's determination, and generator armature winding (5) is connected by rectification module with retarder coil (10); Generator excitation magnetic pole (4) is connected with retarder stator (7) by stator fixed mount (2), keeps the radially breath of generator armature (6) unshakable in one's determination and generator excitation magnetic pole (4);
The output current of generator armature winding (5) is connected to rectification module (12), by rectification module (12) three-phase alternating current is become direct current, be transported in the retarder coil (10), make retarder coil (10) obtain electric current, change the size of electric current in the retarder coil (10) by the electric current in the control module regulator generator excitation winding (3), thereby change braking moment.
2. a self-excitation type coil synchronous rotary is constructed the double-salient-pole liquid-cooled retarder, and it is characterized in that: the electromagnetic core cylindrical of retarder stator (7) inner circle and retarder rotor (11) maintains the 0.5-1.5mm gap.
3. a self-excitation type coil synchronous rotary is constructed the double-salient-pole liquid-cooled retarder, it is characterized in that: retarder stator (7) external diameter is provided with the water channel (8) for cooling, liquid and engine cool water circulation in the water channel (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100113378A CN103078470A (en) | 2013-01-11 | 2013-01-11 | Double-salient-pole liquid-cooling retarding device with synchronous rotating structure for self-exciting coil |
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| CN2013100113378A CN103078470A (en) | 2013-01-11 | 2013-01-11 | Double-salient-pole liquid-cooling retarding device with synchronous rotating structure for self-exciting coil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683803A (en) * | 2013-12-16 | 2014-03-26 | 北京工业大学 | Electromagnetic liquid cooling retarder with double-claw-pole generator |
| CN104753310A (en) * | 2015-04-06 | 2015-07-01 | 山东交通学院 | Self-excitation retarding device and control method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6022443A (en) * | 1983-07-18 | 1985-02-04 | Matsushita Electric Ind Co Ltd | Brake device |
| CN102299608A (en) * | 2011-07-12 | 2011-12-28 | 北京工业大学 | Liquid cooling auto-excitation-type eddy current retarder without electric brush structure |
| CN102594090A (en) * | 2012-03-09 | 2012-07-18 | 北京工业大学 | Liquid cooling self-excitation type eddy current retarder with salient pole structure |
-
2013
- 2013-01-11 CN CN2013100113378A patent/CN103078470A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6022443A (en) * | 1983-07-18 | 1985-02-04 | Matsushita Electric Ind Co Ltd | Brake device |
| CN102299608A (en) * | 2011-07-12 | 2011-12-28 | 北京工业大学 | Liquid cooling auto-excitation-type eddy current retarder without electric brush structure |
| CN102594090A (en) * | 2012-03-09 | 2012-07-18 | 北京工业大学 | Liquid cooling self-excitation type eddy current retarder with salient pole structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683803A (en) * | 2013-12-16 | 2014-03-26 | 北京工业大学 | Electromagnetic liquid cooling retarder with double-claw-pole generator |
| CN104753310A (en) * | 2015-04-06 | 2015-07-01 | 山东交通学院 | Self-excitation retarding device and control method thereof |
| CN104753310B (en) * | 2015-04-06 | 2017-03-01 | 山东交通学院 | A kind of self-excitation type retarding device and its control method |
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Effective date of registration: 20140702 Address after: 225000, Jiangsu, Yangzhou Economic Development Zone, north of Jin Shan Road (opposite Jiangsu Shun) Applicant after: YANGZHOU ANXING ELECTROMECHANICAL TECHNOLOGY CO., LTD. Address before: 100124 Chaoyang District, Beijing Ping Park, No. 100 Applicant before: Beijing University of Technology |
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