CN203537208U - Eddy current retarder - Google Patents
Eddy current retarder Download PDFInfo
- Publication number
- CN203537208U CN203537208U CN201320620492.5U CN201320620492U CN203537208U CN 203537208 U CN203537208 U CN 203537208U CN 201320620492 U CN201320620492 U CN 201320620492U CN 203537208 U CN203537208 U CN 203537208U
- Authority
- CN
- China
- Prior art keywords
- current vortex
- vortex retarder
- stator
- transmission shaft
- vibration isolator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The utility model provides an eddy current retarder. The retarder comprises: a stator for generating a magnetic field; a rotor used for cutting the magnetic field to generate a braking torque and only located on one side of the stator; and a vibration damper located on the other side of the stator. The rotor and the vibration damper are both connected to a rotating shaft of a vehicle and make circular motion with respect to the stator.
Description
Technical field
The utility model relates to a kind of parts for facilities for transport and communication, relates in particular to a kind of current vortex retarder.
Background technology
Current vortex retarder is a kind of auxiliary brake device for automobile.This device is arranged on the power transmission shaft between automobile drive axle and gearbox, by electromagnetic induction principle, realizes contactless braking.Current vortex retarder can provide powerful braking moment in a quite wide range of speeds, and then produces and to avoid running out the way, traditional brake failure and the potential safety hazard such as blow out, and is therefore widely used in motor vehicle, particularly on truck conspicuity marking.As shown in fig. 1, current vortex retarder is comprised of rotor 1, stator 2, rotor adjustment pad 3 and bracing frame 4.Stator 2 comprises conventionally to be arranged and forms by certain position relation by even number of poles.Each magnetic pole is made on iron core by coil winding.Rotor 1 is adjusted pad 3 by rotor and is connected with power transmission shaft (not shown).Bracing frame 4 is for fixed stator 2, and this current vortex retarder and automotive interior miscellaneous part are fixed.
Fig. 2 is common a kind of current vortex retarder in prior art, and this current vortex retarder is installed on gearbox or on back axle flange conventionally, and the connection of its outside adopts and is rigidly connected.As shown in Figure 2, this current vortex retarder comprises: rotor 1, stator 2, support 4, transmission shaft flange 5, connecting screw 6, gearbox output flange 7, support fixed screw 8, gearbox 9.Stator 2 is fixed on support 4, and is connected with gearbox 9 by support fixed screw 8, and rotor 1 fixes by connecting screw 6 and transmission shaft flange 5.Use the current vortex retarder of this mounting means to be applied on the longer bus of vehicle body, passenger vehicle and truck more.For gearbox bonnet, there is no retarder carriage interface or have the vehicle of power takeoff, use current vortex retarder just must change mounting means.
As shown in Figure 3, Fig. 3 is another kind of common current vortex retarder in prior art, and this current vortex retarder is installed and without being fixedly connected with gearbox or back axle on power transmission shaft.This current vortex retarder comprises rotor 1, stator 2, power transmission shaft 11 and power transmission shaft adpting flange 10.The power transmission shaft 11 of this current vortex retarder is directly installed on by its flange 10 in the middle of vehicular transmission shaft, can under less vehicle body space, use this kind of retarder.This retarder comprises two rotors 1 that are positioned at stator 2 two ends.When this retarder work, former and later two rotors 1 rotate simultaneously, on some dillies, the rigidity of its power transmission shaft is lower, because the moment of inertia of retarder rotor is large, at vehicular transmission shaft, mated not at that time the drive system vibration that can twist with retarder moment of inertia, thereby the noise producing, affect useful life of vehicle riding comfort and drive system parts.
Utility model content
In order to overcome the defect existing in prior art, the utility model provides a kind of effective elimination because moment of inertia is excessive, to cause the current vortex retarder that self vibrates.
In order to realize above-mentioned utility model object, the utility model provides a kind of current vortex retarder, comprising: a stator, for generation of a magnetic field; One rotor, for cutting this magnetic field to produce a braking moment, this rotor is only positioned at a side of this stator; One vibration isolator, this vibration isolator is positioned at the opposite side of this stator; This rotor is all connected with a vehicular transmission shaft with this vibration isolator and relative this stator circles.
Further, the vibration isolator of this current vortex retarder is some damping blocks etc. axle is distributed on a rolling disc.The damper unit that this damping block comprises the rigidity pipe box in the middle of being positioned at and is covered in this rigidity pipe box outside and connects in this rolling disc.The damper unit of this current vortex retarder is rubber ring or spring.The vibration isolator of this current vortex retarder also comprises the inertia ring that is positioned at the one-sided or both sides of this rigidity pipe box.The inertia ring of this current vortex retarder is connected or is welded by a screw, rivet with this rigidity pipe box, and has gap between this inertia ring and this damper unit.
Further, the vibration isolator of this current vortex retarder is connected with this power transmission shaft by a flange or is directly connected with power transmission shaft.The stator of this current vortex retarder is connected with this power transmission shaft by a stator axle sleeve.This rotor is connected with this power transmission shaft by a rotor axle sleeve.This damping block is circular or square.
Compared with prior art, retarder provided by the utility model, vehicle can be eliminated in speed change driving process, because rotational inertia of transmission system mates the improper vibration problem producing with Transmission Shaft Stiffness, and the noise problem producing therefrom can be solved in the lump.
Accompanying drawing explanation
About advantage of the present utility model and spirit, can describe in detail and appended graphic being further understood by following utility model.
Fig. 1 is the structural representation of current vortex retarder;
Fig. 2 be in prior art, be installed on gearbox or back axle flange on the structural representation of current vortex retarder;
Fig. 3 is the structural representation that is installed on the current vortex retarder on power transmission shaft in prior art;
Fig. 4 is the structural representation of the related current vortex retarder of the utility model;
Fig. 5 is the vertical view of the vibration isolator of the related current vortex retarder of the utility model;
Fig. 6 is the end view of the vibration isolator of the related current vortex retarder of the utility model.
Embodiment
Below in conjunction with accompanying drawing, describe the current vortex retarder that is installed on power transmission shaft of a kind of specific embodiment of the present utility model in detail.Yet, the utility model should be understood as and be not limited to this execution mode described below, and technical concept of the present utility model can be implemented with other known technologies or the combination of function other technologies identical with those known technologies.
In the following description, for clear structure of the present utility model and the working method of showing, to be described by all multidirectional words, but should be by Word Understandings such as 'fornt', 'back', " left side ", " right side ", " outward ", " interior ", " outwards ", " inwardly ", " axially ", " radially " for convenience of term, and not should be understood to word of limitation.
The retarder using in prior art generally includes right two rotors of a first from left, the advantage of doing is like this to increase the heat-sinking capability of braking torque and rotor, by retarder being installed on to the space, chassis that can maximally utilise vehicle on power transmission shaft, but through applicant's experimental study, the current vortex retarder being installed on power transmission shaft there will be moment of inertia excessive in vehicle speed variation driving process, and causes the consequence of retarder abnormal vibrations.
In order to eliminate the excessive problem of moment of inertia, the utility model provides a kind of current vortex retarder that comprises a vibration isolator.As shown in Figure 4, Fig. 4 is the structural representation of the related current vortex retarder of the utility model.This current vortex retarder comprises a stator 21, and for generation of a magnetic field, described stator 21 is fixed on a stator axle sleeve 22; One rotor 20, described rotor is only positioned at a side of described stator 21; Described rotor 20 is fixed on described rotor flange 25, and described rotor flange 25 is connected with described vehicular transmission shaft 23; One vibration isolator 30, this vibration isolator is positioned at the opposite side of described stator 21, by flange 24, is connected with power transmission shaft 23, in another kind of implementation, also can allow vibration isolator 30 directly be installed on this power transmission shaft 23.This means, typically use a rotor in two-spool retarder and substituted by vibration isolator in prior art, vibration isolator will effectively solve vibration and the noise problem producing while simultaneously rotating because of two rotors.
According to Newton's second law (circular motion): T (Nm)=J (kgm2) x a (rad/s2), therefore reduce moment of inertia J, can reduce the suffered moment of torsion of power transmission shaft of retarder.Retarder provided by the utility model is specifically referring to Fig. 5, Fig. 6.As shown in Figure 5, the main body of this vibration isolator is a circular metal dish 31, on this metal dish 31, several damping blocks is set.The quantity of damping block can be odd number, can be also even number, but the equal big or small weight of all damping blocks is consistent, and is distributed in axisymmetrically on this rolling disc 31.In another kind of implementation, it is consistent that the size of damping block and weight do not require, and be distributed in asymmetrically on this rolling disc 31, and the amount of unbalance of whole vibration isolator is limited in not vibrative scope.
In Fig. 6, describe wherein a kind of version of this damping block in detail.As shown in Figure 6, this damping block comprises a rigidity pipe box 32, and this rigidity pipe box 32 is connected with rolling disc 31 by a damper unit 33.This damper unit 33 is preferably an annular rubber ring, and this rubber ring is covered on rigidity pipe box 32 and directly contacts with rolling disc 31.Owing to it will be appreciated by those skilled in the art that the design of this damping block can be for other shapes except circular, as square or regular hexagon, therefore, when the shape of damping block changes, the shape of rubber ring 33 also changes thereupon.This damper unit 33 can also be used spring, and certain deformation occurs to absorb vibration by spring.
In order to realize best damping technology effect, the two ends of this rolling disc also arrange two inertia ring 36, and this inertia ring is formed from steel, and affixed by screw and rigidity pipe box 32.Inertia ring 36 forms a rigidity rotation inertia, and the rotor moment of inertia of this moment of inertia and opposite side balances each other.Must be noted that between two inertia ring 36 and rolling disc 31 and damper unit 33 and have gap, the object of doing is like this that this moment of inertia absorbs the vibration of the firm body that power transmission shaft 23, flange 24 and rolling disc 31 form by damper unit 33.In the middle of this vibration isolator 30, there is an installing hole 34, for affixed with flange 24.The vibration isolator 30 that is positioned at the rotor 20 of stator 21 one end and is positioned at stator 21 other ends rotates with the rotation of power transmission shaft 23.When the rotation of power transmission shaft is speed change rotation, the torsional moment fluctuation being produced by acceleration is absorbed by damper unit 33 by inertia ring 36.Therefore, no matter whether acceleration or deceleration rotates power transmission shaft, and the unnecessary torque fluctuations bringing absorbs by vibration isolator,
Described in this specification is preferred embodiment of the present utility model, and above embodiment is only in order to the technical solution of the utility model to be described but not to restriction of the present utility model.All those skilled in the art comply with design of the present utility model by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be within scope of the present utility model.
Claims (10)
1. a current vortex retarder, is characterized in that, comprising: a stator, for generation of a magnetic field; One rotor, for cutting described magnetic field to produce a braking moment, described rotor is only positioned at a side of described stator; One vibration isolator, described vibration isolator is positioned at the opposite side of described stator; Described rotor is all connected with a vehicular transmission shaft with described vibration isolator and relative described stator circles.
2. current vortex retarder as claimed in claim 1, is characterized in that, described vibration isolator comprises some damping blocks, and described damping block is distributed on a rolling disc axisymmetricly.
3. current vortex retarder as claimed in claim 2, is characterized in that, the damper unit that described damping block comprises the rigidity pipe box in the middle of being positioned at and is covered in described rigidity pipe box outside and connects in described rolling disc.
4. current vortex retarder as claimed in claim 3, is characterized in that, described damper unit is rubber ring or spring.
5. current vortex retarder as claimed in claim 3, is characterized in that, described vibration isolator also comprises the inertia ring that is positioned at the one-sided or both sides of described rigidity pipe box.
6. current vortex retarder as claimed in claim 5, is characterized in that, described inertia ring is connected or is welded by a screw, rivet with described rigidity pipe box, and has gap between described inertia ring and described damper unit.
7. current vortex retarder as claimed in claim 1, is characterized in that, described vibration isolator is connected with described power transmission shaft by a flange or described vibration isolator is directly connected with power transmission shaft.
8. current vortex retarder as claimed in claim 1, is characterized in that, described stator is connected with described power transmission shaft by a stator axle sleeve.
9. current vortex retarder as claimed in claim 1, is characterized in that, described rotor is connected with described power transmission shaft by a rotor flange.
10. current vortex retarder as claimed in claim 2, is characterized in that, described damping block is circular or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620492.5U CN203537208U (en) | 2013-10-09 | 2013-10-09 | Eddy current retarder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620492.5U CN203537208U (en) | 2013-10-09 | 2013-10-09 | Eddy current retarder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203537208U true CN203537208U (en) | 2014-04-09 |
Family
ID=50423379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320620492.5U Withdrawn - After Issue CN203537208U (en) | 2013-10-09 | 2013-10-09 | Eddy current retarder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203537208U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410247A (en) * | 2014-12-12 | 2015-03-11 | 廖新春 | Acute angle magnetic damper |
| CN104578683A (en) * | 2013-10-09 | 2015-04-29 | 泰乐玛汽车制动系统（上海）有限公司 | Eddy current retarder |
| CN108973696A (en) * | 2018-07-24 | 2018-12-11 | 北京工业大学 | A kind of liquid of parallel arranged construction replies conjunction retarder by cable |
-
2013
- 2013-10-09 CN CN201320620492.5U patent/CN203537208U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578683A (en) * | 2013-10-09 | 2015-04-29 | 泰乐玛汽车制动系统（上海）有限公司 | Eddy current retarder |
| CN104410247A (en) * | 2014-12-12 | 2015-03-11 | 廖新春 | Acute angle magnetic damper |
| CN108973696A (en) * | 2018-07-24 | 2018-12-11 | 北京工业大学 | A kind of liquid of parallel arranged construction replies conjunction retarder by cable |
| CN108973696B (en) * | 2018-07-24 | 2020-10-16 | 北京工业大学 | Liquid-electricity composite retarder with parallel arrangement structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140409 Effective date of abandoning: 20180508 |