CN203537209U - Automotive double-plate type permanent-magnet retarder - Google Patents
Automotive double-plate type permanent-magnet retarder Download PDFInfo
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- CN203537209U CN203537209U CN201320690857.1U CN201320690857U CN203537209U CN 203537209 U CN203537209 U CN 203537209U CN 201320690857 U CN201320690857 U CN 201320690857U CN 203537209 U CN203537209 U CN 203537209U
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- pole piece
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Abstract
The utility model discloses an automotive double-plate type permanent-magnet retarder which is mainly composed of a rotor and a stator. The rotor is composed of a left rotor plate, a right rotor plate and a rotating shaft. The stator is mainly composed of a magnetic pole piece bracket for arranging magnetic pole pieces, and a permanent-magnet bracket for arranging a permanent magnet. The permanent-magnet bracket and the magnetic pole piece bracket are parallelly arranged between the left rotor plate and the right rotor plate. The permanent-magnet bracket is arranged on a hollow shaft through a sliding bearing. The hollow shaft is arranged on the rotating shaft through a rolling bearing. The magnetic pole piece bracket is arranged on the hollow shaft and is fixedly connected with the bearing cap of the rolling bearing. The outer side of the magnetic pole piece bracket is connected with a cylinder assembly. A rocking arm which is driven by the cylinder assembly is arranged at the outer side of the permanent-magnet bracket. The automotive double-plate type permanent-magnet retarder has advantages of simple structure, ingenious design and low manufacturing cost. Through controlling rotation angle of the permanent-magnet bracket, the magnitude of braking torque can be adjusted.
Description
Technical field
The utility model relates to auxiliary brake device for automobile, relates in particular to a kind ofly by Nd-Fe-B permanent magnet axial excitation, and the rotor disk of two rotations in left and right produces the automobile-used double plate permanent-magnet speed buffer of braking moment.
Background technology
Automobile permanent magnet retarder is a kind of novel contactless driving complemental brake system, is mainly arranged in the drive system of vehicle.Vehicle is when mountain area lower long slope travels, and friction catch can make wheel hub heat up for a long time, causes braking system heat fading, and braking moment reduces, and even loses efficacy, and has had a strong impact on mountain area vehicle driving safety.Retarder acts on braking moment in drive system, plays the effect of reduction and stabilizing speed in the situation that not using or use friction brake less, has reduced frequency of utilization and the time of friction catch, has improved traffic safety.
The feature of permanent-magnet speed buffer has: can realize miniaturization, the lightweight of product 1.; 2. by solenoid control pneumatic means, regulate permanent-magnet speed buffer operating state, little power consumption; 3. by permanent magnet excitation, excitation is stable, and self can not produce heat, can keep stability and the persistence of braking force in the situation that of continuous firing; 4. contactless braking, safeguards simple.
Existing permanent-magnet speed buffer mostly is drum-type, all rotor and stator, consists of.Chinese utility model patent (number of patent application is 200710019389.4) discloses a kind of air-cooled permanent-magnet speed buffer, stator is placed in internal rotor, stator is provided with the permanent magnet that a row fixing permanent magnet and row can rotate in a circumferential direction vertically, the parallel placement of two row permanent magnets and quantity, shape and size are all identical, and same column adjacent permanent magnet polarity is contrary.When axial two row permanent magnet polarities are when contrary, the magnetic line of force is shielded by yoke, and rotor is cutting magnetic line not, and permanent-magnet speed buffer is in non-on-position; Rotate a row permanent magnet to certain angle, axial two row permanent magnet polarities are when identical, and the magnetic line of force enters rotor through yoke and air gap, and rotor cutting magnetic line produces eddy current and braking moment, and permanent-magnet speed buffer is in on-position.Utilize air control unit, the rotational angle of a rotatable row permanent magnet can be changed arbitrarily in the angular range of setting, reach the electrodeless adjustable object of braking moment.Chinese utility model patent (number of patent application is 201019114044.6) discloses a kind of water-cooled permanent-magnet speed buffer, this retarder comprises stator and the rotor in shell and shell, on rotor, along even circumferential, be fixed wtih even numbered blocks permanent magnet, adjacent permanent magnet polarity is contrary; Stator in shell has cooling water channel, and can move axially by air control unit, regulates the position to axial of stator and rotor by changing displacement, and then controls the size of braking moment.Above-mentioned air-cooled permanent-magnet speed buffer compact conformation, but exist braking moment little, the shortcoming such as area of dissipation is little, heat dispersion is poor; Water-cooled permanent-magnet speed buffer good cooling results, braking moment is stable, but need to connect water-cooled pipeline, complex structure, quality and volume are larger, and will carry out freeze protection measures during low temperature.
(number of patent application is Chinese utility model patent: 200610057992.7) disclose a kind of desk permanent-magnet retarder.It is by forming with two of the gelled left and right rotor stator middle with being placed in two rotors, and stator is installed with rotor is concentric.Stator by: support, permanent magnet, magnetic guiding jar, cylinder, magnetic guiding loop, magnetic conductive board, movable magnet ring, piston ring form.By cylinder, control the axially movable position of magnetic guiding loop in magnetic guiding jar, can control the magnetic flux size by rotor, thereby control the operating state of permanent-magnet speed buffer.This permanent-magnet speed buffer has two rotors, and area of dissipation is large and radiating effect is good, and braking moment is stable, but complex structure, and installation and control difficulty are larger.
Utility model content
The purpose of this utility model is poor in order to improve existing permanent-magnet speed buffer heat dispersion, the defect that braking moment is little, provide that a kind of volume is little, quality is light, good heat dissipation effect, braking moment is large and constant and can realize the adjustable automobile-used double plate permanent-magnet speed buffer of braking moment.
A kind of automobile-used double plate permanent-magnet speed buffer of the utility model, mainly by rotor and stator, formed, described rotor consists of two of left and right rotor disk 3 and rotating shaft 11, and two of left and right rotor disk 3 is symmetrically placed in stator both sides and is arranged in rotating shaft 11, and rotor disk 3 forms and is connected with truck drive shaft; Stator consists of cylinder assembly 1, some permanent magnets 5, permanent magnet support 6, sliding bearing 7, hollow shaft 8, some pole pieces 17, pole piece support 18, described pole piece 17 is uniformly distributed and is set on pole piece support 18, described permanent magnet 5 is axial excitation, magnetic pole between two identical annular is distributed on permanent magnet support 6, and permanent magnet 5 quantity are just the twices of a pole piece support upper pole piece quantity; Permanent magnet support 6 and pole piece support 18 are arranged side by side and are placed between two rotor disks 3 in left and right, permanent magnet support 6 is arranged on hollow shaft 8 by sliding bearing 7, hollow shaft 8 is connected with rotating shaft 11 by rolling bearing 13, pole piece support 18 is arranged on hollow shaft 8 and with the bearing cap 14 of rolling bearing 13 and is fixedly connected with, the outer side edges of pole piece support 18 is connected with cylinder assembly 1, the outer ledge of permanent magnet support 6 is provided with rocking arm 19, and rocking arm 19 is driven by cylinder assembly 1.
The automobile-used double plate permanent-magnet speed buffer of the utility model, is useful on the screw (9) that connects truck drive shaft on described rotor disk.
The automobile-used double plate permanent-magnet speed buffer of the utility model, the pole piece support 18 of described installation pole piece 17 is provided with two, is arranged on respectively the both sides of permanent magnet support 6; Each pole piece support 18 center is provided with circular hole, circular hole size is corresponding with hollow shaft installation site, pole piece support annular is evenly equipped with for the fan-shaped pylone of pole piece 17 is installed, its inner side is provided with 8 for the circular hole of connection bearing lid 14, and outside is provided with 8 for connecting the circular hole of cylinder assembly 1 and body of a motor car.
The automobile-used double plate permanent-magnet speed buffer of the utility model, described permanent magnet support 6 centers are provided with circular hole and sliding bearing 7 are installed, the interior hole size of sliding bearing 7 is corresponding with hollow shaft 8 installation sites, permanent magnet support 6 annulars are evenly equipped with for the fan-shaped pylone of permanent magnet 5 is installed, and its outward flange is provided with two symmetrical rocking arms 19.
The beneficial effects of the utility model are:
1. by adopting Nd-Fe-B permanent magnet excitation, itself does not generate heat, and there is no heat fading, and braking moment is stable.
2. adopt double plate rotor, the active area of permanent magnet transfer is large, and braking moment is large, and area of dissipation is large simultaneously, good heat dissipation effect.
3. stator adopts light-weight non-magnetic to do framework, compact overall structure, and volume is little, quality is light, and leakage field is little.
4. by the control of cylinder assembly, the rotational angle of permanent magnet and permanent magnet support can change within the specific limits continuously, so braking moment also can electrodelessly regulate, and adapts to the needs of different road conditions.
5. stator is connected by rolling bearing with rotor, and width of air gap is even.
Accompanying drawing explanation
Fig. 1 is the axial cross-sectional schematic of the utility model.
Fig. 2 is the structural representation of the utility model permanent magnet and permanent magnet support.
Fig. 3 is the structural representation of the utility model pole piece and pole piece support.
Fig. 4 is the structural representation under the non-on-position of the utility model.
Fig. 5 is the structural representation under the utility model on-position.
In figure: 1. cylinder assembly, 2. the first air gap regulates pad, 3. rotor disk, 4. fin, 5. permanent magnet, 6. permanent magnet support, 7. sliding bearing, 8. hollow shaft, 9. screw, 10. spline, 11. rotating shafts, 12. the 3rd air gaps regulate pad, 13. rolling bearings, 14. bearing caps, 15. bearing clearancees regulate pad, and 16. interstices regulate pad, 17. pole pieces, 18. pole piece supports, 19. rocking arms.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Contrast Fig. 1-3, the automobile-used double plate permanent-magnet speed buffer of the utility model is mainly comprised of rotor and stator, and rotor can rotate around stator center.Described rotor consists of two of left and right rotor disk 3 and rotating shaft 11, two rotor disks 3 in left and right are symmetrically placed in stator both sides and are arranged in rotating shaft 11, rotor disk 3 is formed and is connected by screw 9 with truck drive shaft, rotor disk 3 is provided with fin 4, rotating shaft 11 is connected by spline 10 with rotor disk 3, and the two ends of rotating shaft 11 are fixed with nut.Between rotor disk 3 and rotating shaft 11, be provided with the 3rd air gap and regulate pad 12, air gap between rotor disk 3 and stator regulates the thickness of pad 12 to regulate by increasing and decreasing the 3rd air gap, width of air gap is generally between 0.8-3mm, rotor disk 3 carries out wind-cooling heat dissipating by fin 4, rotor disk 3 is provided with six screws 9 simultaneously, for connecting the ring flange on truck drive shaft.
Stator consists of cylinder assembly 1, some permanent magnets 5, permanent magnet support 6, sliding bearing 7, hollow shaft 8, some pole pieces 17 and two pole piece supports 18, hollow shaft 8 is connected with rotating shaft 11 by rolling bearing 13, hollow shaft 8 is stator support, for supports permanent magnets support 6 and pole piece support 18, hollow shaft 8 is provided with eight circular holes, be used for installing pole piece support 18, pole piece support 18 forms a fixed connection by bolt and bearing cap 14 and hollow shaft 8.
Described pole piece 17 is uniformly distributed and is set on pole piece support 18, and pole piece support 18 is provided with inside and outside annular two row circular holes, and interior circular hole is used for being fixed on hollow shaft 8, and outer circular hole is used for installing cylinder assembly 1 and is connected with body of a motor car.
Described permanent magnet 5 is axial excitation, identical annular is uniform is between two set on permanent magnet support 6 for magnetic pole, permanent magnet 5 quantity are just the twices of a pole piece support upper pole piece quantity, and permanent magnet support 6 and two pole piece supports 18 are arranged side by side and are placed between two rotor disks 3 in left and right.
The automobile-used double plate permanent-magnet speed buffer of the utility model, the junction of the outer side edges of described pole piece support 18 and cylinder assembly 1 is provided with the first air gap and regulates pad 2, interstice is installed between pole piece support 18 and hollow shaft 8 and regulates pad 16, air gap between pole piece 17 and permanent magnet 5 regulates pad 2 and interstice to regulate pad 16 to regulate by the first air gap, and the width of air gap is controlled at 0.2-0.5mm.
The automobile-used double plate permanent-magnet speed buffer of the utility model, is provided with gap adjustment pad 15 between described rolling bearing 13 and bearing cap 14.
The automobile-used double plate permanent-magnet speed buffer of the utility model, the pole piece support 18 of described installation pole piece 17 is arranged on respectively the both sides of permanent magnet support 6; Each pole piece support 18 is made by light-weight non-magnetic, its center is provided with circular hole, circular hole size is corresponding with hollow shaft installation site, pole piece support annular is evenly equipped with for the fan-shaped pylone of pole piece 17 is installed, its inner side is provided with 8 for the circular hole of connection bearing lid 14, and outside is provided with 8 for connecting the circular hole of cylinder assembly 1 and body of a motor car.
The automobile-used double plate permanent-magnet speed buffer of the utility model, described permanent magnet support 6 is made by light-weight non-magnetic, its center is provided with circular hole and sliding bearing 7 is installed, the interior hole size of sliding bearing 7 is corresponding with hollow shaft 8 installation sites, and permanent magnet support 6 annulars are evenly equipped with for the fan-shaped pylone of permanent magnet 5 is installed.Permanent magnet support 6 is connected with hollow shaft 8 by sliding bearing 7 and can relatively rotates, the outer ledge of permanent magnet support 6 is symmetrically installed with rocking arm 19; rocking arm 19 is connected with cylinder assembly 1; by cylinder assembly 1, promote rocking arm 19; make the rectilinear motion of cylinder assembly 1 be converted to rotatablely moving of permanent magnet 5 and permanent magnet support 6 by rocking arm 19; to realize permanent magnet support 6 and around hollow shaft 8, relatively rotate together with permanent magnet 5; changed the circumferential relative position of permanent magnet and pole piece, has played the effect of controlling magnetic circuit.
Described permanent magnet 5 is axial excitation, and pole piece 17 is that ferrimagnet is made, and permanent magnet support 6 is made by light-weight non-magnetic with pole piece support 18, plays the effect of weight reduction, minimizing leakage field.
The utility model operation principle and the course of work:
Contrast Fig. 4, when automobile does not need to brake, not action of cylinder assembly 1, in initial position, the corresponding same pole piece 17 of permanent magnet 5 that adjacent polarity is different, the magnetic line of force is not by left/right rotation sub-disk 3, the magnetic line of force forms loop between permanent magnet 5, air gap and pole piece 17, rotor disk 3 is cutting magnetic line not, and the utility model permanent-magnet speed buffer does not have braking moment, now in non-on-position.
Contrast Fig. 5, when automobile need to be braked, by solenoid control cylinder assembly 1, promote rocking arm 19, permanent magnet 5 is turned an angle around hollow shaft 8 with rocking arm 19 with permanent magnet support 6, make the corresponding same pole piece 17 of permanent magnet 5 that adjacent polarity is identical, the magnetic line of force that permanent magnet 5 produces enters into rotor disk 3 through pole piece 17, the magnetic line of force forms loop between permanent magnet 5, air gap, pole piece 17, rotor disk 3, rotor disk 3 cutting magnetic lines, the utility model permanent-magnet speed buffer has maximum braking moment, now in on-position; By the straight-line distance of continuous control cylinder assembly, continuously change the rotational angle of rocking arm, thereby the active area that the rotational angle of permanent magnet support 6 is controlled permanent magnet 5 and pole piece 17 is controlled in realization, and then controlled the size of braking moment.
Claims (4)
1. an automobile-used double plate permanent-magnet speed buffer, mainly by rotor and stator, formed, it is characterized in that, described rotor consists of two rotor disks in left and right (3) and rotating shaft (11), two rotor disks in left and right (3) are symmetrically placed in stator both sides and are arranged on rotating shaft (11) upper, and rotor disk (3) forms and is connected with truck drive shaft, stator consists of cylinder assembly (1), some permanent magnets (5), permanent magnet support (6), sliding bearing (7), hollow shaft (8), some pole pieces (17), pole piece support (18), described pole piece (17) is uniformly distributed and is set on pole piece support (18), described permanent magnet (5) is axial excitation, magnetic pole between two identical annular is distributed in permanent magnet support (6) above, and permanent magnet (5) quantity is just the twice of a pole piece support upper pole piece quantity, permanent magnet support (6) and pole piece support (18) are arranged side by side and are placed between two rotor disks in left and right (3), permanent magnet support (6) is arranged on hollow shaft (8) by sliding bearing (7), hollow shaft (8) is connected with rotating shaft (11) by rolling bearing (13), pole piece support (18) is arranged on hollow shaft (8) above and is fixedly connected with the bearing cap (14) of rolling bearing (13), the outer side edges of pole piece support (18) is connected with cylinder assembly (1), the outer ledge of permanent magnet support (6) is provided with rocking arm (19), rocking arm (19) is driven by cylinder assembly (1).
2. automobile-used double plate permanent-magnet speed buffer according to claim 1, is characterized in that, is useful on the screw (9) that connects truck drive shaft on rotor disk.
3. automobile-used double plate permanent-magnet speed buffer according to claim 1, is characterized in that, the pole piece support (18) of described installation pole piece (17) is provided with two, is arranged on respectively the both sides of permanent magnet support (6); Each pole piece support (18) center is provided with circular hole, circular hole size is corresponding with hollow shaft installation site, pole piece support annular is evenly equipped with for the fan-shaped pylone of pole piece (17) is installed, its inner side is provided with 8 for the circular hole of connection bearing lid (14), and outside is provided with 8 for connecting the circular hole of cylinder assembly (1) and body of a motor car.
4. automobile-used double plate permanent-magnet speed buffer according to claim 1, it is characterized in that, described permanent magnet support (6) center is provided with circular hole and sliding bearing (7) is installed, the interior hole size of sliding bearing (7) is corresponding with hollow shaft (8) installation site, permanent magnet support (6) annular is evenly equipped with for the fan-shaped pylone of permanent magnet (5) is installed, and its outward flange is provided with two symmetrical rocking arms (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320690857.1U CN203537209U (en) | 2013-11-04 | 2013-11-04 | Automotive double-plate type permanent-magnet retarder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320690857.1U CN203537209U (en) | 2013-11-04 | 2013-11-04 | Automotive double-plate type permanent-magnet retarder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203537209U true CN203537209U (en) | 2014-04-09 |
Family
ID=50423380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320690857.1U Withdrawn - After Issue CN203537209U (en) | 2013-11-04 | 2013-11-04 | Automotive double-plate type permanent-magnet retarder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203537209U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580447A (en) * | 2013-11-04 | 2014-02-12 | 广西大学 | Double disc type permanent magnet retarder for vehicle |
| CN106712417A (en) * | 2017-03-16 | 2017-05-24 | 迈格钠磁动力股份有限公司 | Vehicular disk-type permanent magnet eddy current retarder |
| CN107070174A (en) * | 2015-11-13 | 2017-08-18 | 麦格纳驱动公司 | Magnet is to magnet type shaft coupling and driver |
-
2013
- 2013-11-04 CN CN201320690857.1U patent/CN203537209U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580447A (en) * | 2013-11-04 | 2014-02-12 | 广西大学 | Double disc type permanent magnet retarder for vehicle |
| CN103580447B (en) * | 2013-11-04 | 2015-11-25 | 广西大学 | A kind of double disc type permanent magnet retarder for vehicle |
| CN107070174A (en) * | 2015-11-13 | 2017-08-18 | 麦格纳驱动公司 | Magnet is to magnet type shaft coupling and driver |
| CN106712417A (en) * | 2017-03-16 | 2017-05-24 | 迈格钠磁动力股份有限公司 | Vehicular disk-type permanent magnet eddy current retarder |
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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 |
Granted publication date: 20140409 Effective date of abandoning: 20151125 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |