CN204810123U - Fast derailleur for electric automobile is delayed in area - Google Patents
Fast derailleur for electric automobile is delayed in area Download PDFInfo
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- CN204810123U CN204810123U CN201520612393.1U CN201520612393U CN204810123U CN 204810123 U CN204810123 U CN 204810123U CN 201520612393 U CN201520612393 U CN 201520612393U CN 204810123 U CN204810123 U CN 204810123U
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Abstract
The utility model relates to a fast derailleur for electric automobile is delayed in area. Including permanent magnetism speed governing part, reducing gear box and retarber, permanent magnetism speed governing part is including cylindric conductor rotor, cylindric permanent magnet rotor and speed control mechanism, cylindric conductor rotor includes the conductor rotary drum, the inner conductor, the conductor rotary drum links to each other with the input shaft through the initiative flange, initiative flange suit is on the input shaft, the initiative flange links to each other with the conductor rotary drum, be equipped with the inner conductor on the interior side neck wall of conductor rotary drum, cylindric permanent magnet rotor includes the permanent magnetism rotary drum, the permanent magnet, the both ends supporting of pivot is on reducing gear box and permanent magnetism rotary drum, driven flange suit is in the pivot, driven flange is connected with the permanent magnetism rotary drum, the permanent magnetism rotary drum imbeds the permanent magnet along circumference, it is gapped between the outside of permanent magnet and the inner wall of inner conductor, speed control mechanism includes interior round cover, excircle cover, and interior circle cover suit is the outer disc of driven flange, round putting in on the spout that is equipped with including the excircle cover slider of establishing is installed. The utility model discloses vibration isolation and shock attenuation are effectual, can realize the even running.
Description
Technical field
The utility model is a kind of with slow transmission for electric automobile, belongs to the renovation technique of the slow transmission for electric automobile of band.
Background technology
In recent years, under the background emphasizing energy-conserving and environment-protective, a development trend of automobile industry that to take electric automobile as the new-energy automobile of representative be.One of development bottleneck that electric automobile is current is that motor technology requires height, expensive.Direct current machine is the motor be applied to the earliest on drive system of electric automobile, there is stepless speed control, control the advantages such as simple and technology maturation, but direct current machine needs commutator and brush, these devices are fragile, need periodic maintenance, and the efficiency of direct current machine compared with low, price is high, weight and volume large.Therefore, the application of direct current machine on electric automobile is restricted, and is just substituted by AC induction motor, permagnetic synchronous motor and switched reluctance machines etc.AC induction motor has the advantages such as structure is simple, good reliability, cost are low, the life-span is long, but the speed adjusting performance of AC induction motor is poor, electric machine controller cost is far above motor itself, which limit the application of the low AC induction motor of cost on electric automobile, and expensive permagnetic synchronous motor or switched reluctance machines can only be used, although these two kinds of motors have the advantages such as power density is large, compact conformation, volume are little, its fancy price cannot meet the current consumer of China to wilderness demand that is cheap, Practical electric automobile.
How to solve motor problem, improve the speed adjusting performance of AC induction motor with low cost, and simplify the controller of its complexity, make electric automobile design can adopt common, cheap AC/DC motor, instead of usually adopt expensive magneto, switched reluctance machines at present, and can mechanical clutch be saved, thus reduce costs, be problem demanding prompt solution.
Summary of the invention
The purpose of this utility model is consider the problems referred to above and provide a kind of with slow transmission for electric automobile.The utility model vibration isolation and good damping effect, can realize the even running of work mechanism, can realize stepless speed regulation, and cost is low, and it is convenient to control, and effectively can improve the braking ability of automobile.
The technical solution of the utility model is: the transmission for electric automobile that band of the present utility model is slow, include permanent magnetic speed-adjusting part, reduction box and retarder, permanent magnetic speed-adjusting part includes tubular conductor rotor, tubular p-m rotor and speed adjusting gear three part, the main body of tubular conductor rotor comprises conductor rotating cylinder, inner conductor and initiatively flange, wherein conductor rotating cylinder is connected with power shaft by active flange, wherein initiatively flange is sleeved on power shaft, and initiatively flange is connected with conductor rotating cylinder, the inner side barrel of conductor rotating cylinder is provided with one deck inner conductor, the main body of tubular p-m rotor comprises permanent magnetism rotating cylinder, permanent magnet and driven flange, on one end bearing reduction box of its shaft, the other end is bearing on permanent magnetism rotating cylinder, driven flange sleeve is contained in rotating shaft, driven flange is connected with permanent magnetism rotating cylinder, and one end of permanent magnetism rotating cylinder can be sleeved in the hollow cavity of inner conductor, permanent magnetism rotating cylinder is circumferentially embedded with permanent magnet, gap is had between the outside of permanent magnet and the inwall of inner conductor, speed adjusting gear includes inner circle cover, bearing, cylindrical cover, slide block, bearing (ball) cover, inner circle cover is sleeved on the periphery of driven flange, and inner circle cover is arranged in rotating shaft by bearing, the periphery of inner circle cover is set with cylindrical cover, and the arranged outside of bearing has bearing (ball) cover to locate, and inner circle puts and is provided with chute, cylindrical puts and slide block is housed, and the set slide block of cylindrical cover is installed in inner circle and puts on the chute that is provided with, is coordinated between cylindrical cover overlaps with inner circle by chute with slide block, retarder includes retarder casing, stator, tile shape permanent magnet, magnet retainer, transmission shaft flange, retarder casing is connected with Gearbox, retarder end cap and retarder casing are fixed, stator is installed on retarder casing, the water channel for cooling is provided with in stator, retarder end cap is fixed with two cylinders, piston and the stator of cylinder are fixed, reduction gearbox output shaft is connected with magnet retainer by output flange, the output shaft of reduction box by output flange by transmission of power to magnet retainer, some pieces of tile shape permanent magnets are uniformly distributed along the circumference on magnet retainer, external diameter and the diameter of stator bore of tile shape permanent magnet maintain gap, transmission shaft flange is connected with magnet retainer, and magnet retainer passes motion to truck drive shaft by transmission shaft flange.
The utility model compared with prior art, has following beneficial effect:
1) clutch and speed changer are integrated by the utility model, compact conformation, function i ntegration;
2) the utility model power rotor and driven rotor are contactless each other, do not exist and are rigidly connected, and have good vibration isolation, damping effect, realize the even running of work mechanism;
3) the utility model is integrated with retarding device, is very suitable for the electric coach that required braking force is larger, effectively can improve the braking ability of automobile.
The utility model is that a kind of design is ingenious, function admirable, the transmission for electric automobile that convenient and practical band is slow.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is cutaway view of the present utility model;
Fig. 3 is the magnetic circuit schematic diagram of permanent-magnet speed buffer of the present utility model;
Fig. 4 is the structural representation that the stator in the utility model retarder is connected with retarder casing.
Embodiment
Embodiment:
Structural representation of the present utility model is as Fig. 1, 2, shown in 3, the transmission for electric automobile that band of the present utility model is slow, include permanent magnetic speed-adjusting part and reduction box 4, permanent magnetic speed-adjusting part includes tubular conductor rotor 1, tubular p-m rotor 2 and speed adjusting gear 3 three part, the main body of tubular conductor rotor 1 comprises conductor rotating cylinder 13, inner conductor 14 and initiatively flange 11, wherein conductor rotating cylinder 13 is connected with power shaft 16 by active flange 11, wherein initiatively flange 11 is sleeved on power shaft 16, and initiatively flange 11 is connected with conductor rotating cylinder 13, the inner side barrel of conductor rotating cylinder 13 is provided with one deck inner conductor 14, the main body of tubular p-m rotor 2 comprises permanent magnetism rotating cylinder 21, permanent magnet 28 and driven flange 23, on one end bearing reduction box 4 of its shaft 27, the other end is bearing on permanent magnetism rotating cylinder 21, driven flange 23 is sleeved in rotating shaft 27, and driven flange 23 is connected with permanent magnetism rotating cylinder 21, and one end of permanent magnetism rotating cylinder 21 can be sleeved in the hollow cavity of inner conductor 14, permanent magnetism rotating cylinder 21 is circumferentially embedded with permanent magnet 28, gap is had between the outside of permanent magnet 28 and the inwall of inner conductor 14, speed adjusting gear 3 includes inner circle cover 31, bearing 32, cylindrical cover 33, slide block 34, bearing (ball) cover 35, inner circle cover 31 is sleeved on the periphery of driven flange 23, and inner circle cover 31 is arranged in rotating shaft 27 by bearing 32, the periphery of inner circle cover 31 is set with cylindrical cover 33, and the arranged outside of bearing 32 has bearing (ball) cover 35 to locate, and inner circle cover 31 is provided with chute, cylindrical cover 33 is equipped with slide block 34, slide block 34 set by cylindrical cover 33 is installed in inner circle and overlaps on 31 chutes be provided with, and cylindrical cover 33 is coordinated with slide block 34 by chute between overlapping 31 with inner circle, retarder 5 includes retarder casing 51, stator 52, tile shape permanent magnet 53, magnet retainer 54, transmission shaft flange 55, retarder casing 51 is connected with Gearbox 42, retarder end cap 56 is fixed with retarder casing 51, stator 52 is installed on retarder casing 51, the water channel for cooling is provided with in stator 52, retarder end cap 56 is fixed with two cylinders 58, piston and the stator 52 of cylinder 58 are fixed, reduction gearbox output shaft 45 is connected with magnet retainer 54 by output flange 57, reduction gearbox output shaft 45 passes through output flange 57 by transmission of power to magnet retainer 54, some pieces of tile shape permanent magnets 53 are uniformly distributed along the circumference on magnet retainer 54, external diameter and stator 52 internal diameter of tile shape permanent magnet 53 maintain gap, transmission shaft flange 55 is connected with magnet retainer 54, and magnet retainer 54 passes motion to truck drive shaft by transmission shaft flange 55.In the present embodiment, 12 ~ 20 pieces of tile shape permanent magnets 53 are uniformly distributed along the circumference on magnet retainer 54, and permanent magnet 53 external diameter and stator drum 52 internal diameter keep 0.5 ~ 2.0mm gap.
In the present embodiment, above-mentioned inner circle cover 31 is also provided with regulating handle 36, cylindrical cover 33 is fixed by regulating handle 36, when pulling regulating handle 36 circumferentially to rotate, slide block 34 promotes inner circle cover 31 along the chute on cylindrical cover 33 and moves axially along rotating shaft 27, and then promote bearing 32 and driven flange 23 and slide in rotating shaft 27, sliding axially in rotating shaft 27 together with the permanent magnetism rotating cylinder 21 that dragging and driven flange 23 are connected, change the effective area of contact between tubular p-m rotor 2 and tubular conductor rotor 1, change the size of transmitting torque between tubular p-m rotor 2 and tubular conductor rotor 1.
In the present embodiment, above-mentioned inner conductor 14 is internal layer copper conductors.
In the present embodiment, above-mentioned active flange 11 is connected with conductor rotating cylinder 13 by screw 12.Driven flange 23 is connected with permanent magnetism rotating cylinder 21 by screw 24.
In the present embodiment, the end of above-mentioned rotating shaft 27 is provided with limiting plate 26, to limit the extreme position that p-m rotor 2 slides on axle.Limiting plate 26 is fixed on the end of rotating shaft 27 by screw 25.
In the present embodiment, the side of above-mentioned conductor rotating cylinder 13 is provided with louvre 15, and the cylindrical anchor ring of conductor rotating cylinder 13 is provided with fin 17, to facilitate air circulation, dispels the heat to inner conductor 14.
In the present embodiment, the side of above-mentioned permanent magnetism rotating cylinder 21 is provided with louvre 22, dispels the heat to facilitate air circulation.
In the present embodiment, above-mentioned reduction box 4 includes gear wheel 41, casing 42, bearing 43, door 44, output shaft 45, baffle ring 46, key 47, pinion 48, its shaft 27 is bearing on casing 42, pinion 48 is installed in rotating shaft 27, gear wheel 41 is sleeved on output shaft 45, gear wheel 41 engages with pinion 48, and output shaft 45 is also bearing on casing 42.
In the present embodiment, above-mentioned pinion 48 is connected with rotating shaft 27 by key 47.The torque that rotating shaft 27 is input to reduction box passes to pinion 48 by key 47, pinion 48 by engaged transmission by transmission of torque to gear wheel 41, after deceleration increasing is turned round again by transmission of torque to output shaft 45.
In the present embodiment, the two ends of above-mentioned output shaft 45 are bearing on casing 42 by bearing 43, and the outside of one of them bearing 43 is provided with door 44, and the outside of another bearing 43 is provided with baffle ring 46.
Operation principle of the present utility model comprises power transmission principle and speed control principle, specific as follows:
Power transmission principle: when the output shaft of driving motor for electric automobile drives tubular conductor rotor 1 to rotate, tubular conductor rotor 1 and tubular p-m rotor 2 produce relative motion, the magnetic line of force that cutting permanent magnet 28 produces, thus eddy current is produced in tubular conductor rotor 1, the magnetic field that simultaneously eddy current produces again induced field and permanent magnet 28 forms interaction force, according to Lenz's law, the direction of motion of tubular p-m rotor 2 should be hinder the magnetic field force of induced field, namely tubular p-m rotor 2 rotates along the direction that tubular conductor rotor 1 is identical, result is in the rotating shaft 27 be connected with tubular p-m rotor 2 by the transmission of torque of power shaft 16, rotating shaft 27 as the power shaft of reduction box by transmission of torque to pinion 48, pinion 48 by engaged transmission by transmission of torque to gear wheel 41, finally will increase the transmission of torque after turning round to the output shaft 45 of speed changer, thus driving motor racing.
Speed control principle: fixing cylindrical cover 33, when rotating the regulating handle 36 on inner circle cover 31, slide block 34 promotes inner circle cover 31 along chute and moves in the axial direction, and then promote bearing 32 and driven flange 23 and slide in rotating shaft 27, slide axially together with the permanent magnetism rotating cylinder 21 that dragging and driven flange 23 are connected, change the effective area of contact between tubular p-m rotor 2 and tubular conductor rotor 1, change the size of transmitting torque between tubular p-m rotor 2 and tubular conductor rotor 1.
The utility model carrys out speed governing by the area of contact between adjustment tubular p-m rotor 2 and tubular conductor rotor 1.When regulating handle 36 rotates, area of contact reduces, and two kinds of magnetic field interactions weaken, and slip becomes large, and output speed reduces; When regulating handle 36 upwards rotates, area of contact increases, and two kinds of magnetic field interactions strengthen, and slip diminishes, and output speed increases.
Slow principle: when retarder works, cylinder 58 interface passes into gases at high pressure, promote stator 52 to permanent magnet 53 1 Slideslip, enter the position of engaging with permanent magnet 53, the magnetic field produced is at rotor 61, permanent magnet 53, loop is formed between air gap and stator 52, as shown in Figure 3, rotor 61 is installed on the output shaft 45 of reduction box, the magnetic line of force 60 that on stator 52 septum magnet retainer 54, permanent magnet 53 sends, eddy current is produced in stator 52, the induced field that eddy current produces and the magnetic field interaction that permanent magnet produces, produce the moment hindering rotor turns, this braking moment acts on transmission shaft flange 55 by magnet retainer 54, thus braking force is produced to automobile.Wherein, spline joint is provided with between stator 52 and retarder casing 51, as shown in Figure 4, by electromagnetically operated valve adjusting cylinders 58 internal gas pressure, stator 52 is driven to slide axially along spline in retarder casing 51 inside continuously, by regulating the interaction size between stator 52 and permanent magnet 53, retarder braking moment can be realized and regulate continuously or stepping adjustment.The stator 52 of retarder part, due to the effect of eddy current, constantly produces Joule heat, and these heats are taken away by the cooling water in stator 52 water channel, is constantly that heat energy is dispersed in cooling water by the kinetic transformation of vehicle.
When not needing braking, stator 52 is pulled out permanent magnet 53 end face by cylinder 58 completely, and stator 52 can not permanent magnet 53 sends on septum magnet retainer 54 the magnetic line of force, and on stator 52, non-inductive eddy current produces, power transmission shaft not by braking moment effect, thus terminates the braking to automobile.
Claims (10)
1. the transmission for electric automobile that a band is slow, it is characterized in that including permanent magnetic speed-adjusting part, reduction box and retarder, permanent magnetic speed-adjusting part includes tubular conductor rotor, tubular p-m rotor and speed adjusting gear three part, the main body of tubular conductor rotor comprises conductor rotating cylinder, inner conductor and initiatively flange, wherein conductor rotating cylinder is connected with power shaft by active flange, wherein initiatively flange is sleeved on power shaft, and initiatively flange is connected with conductor rotating cylinder, the inner side barrel of conductor rotating cylinder is provided with one deck inner conductor, the main body of tubular p-m rotor comprises permanent magnetism rotating cylinder, permanent magnet and driven flange, on one end bearing reduction box of its shaft, the other end is bearing on permanent magnetism rotating cylinder, driven flange sleeve is contained in rotating shaft, driven flange is connected with permanent magnetism rotating cylinder, and one end of permanent magnetism rotating cylinder can be sleeved in the hollow cavity of inner conductor, permanent magnetism rotating cylinder is circumferentially embedded with permanent magnet, gap is had between the outside of permanent magnet and the inwall of inner conductor, speed adjusting gear includes inner circle cover, bearing, cylindrical cover, slide block, bearing (ball) cover, inner circle cover is sleeved on the periphery of driven flange, and inner circle cover is arranged in rotating shaft by bearing, the periphery of inner circle cover is set with cylindrical cover, and the arranged outside of bearing has bearing (ball) cover to locate, and inner circle puts and is provided with chute, cylindrical puts and slide block is housed, and the set slide block of cylindrical cover is installed in inner circle and puts on the chute that is provided with, is coordinated between cylindrical cover overlaps with inner circle by chute with slide block, retarder includes retarder casing, stator, tile shape permanent magnet, magnet retainer, transmission shaft flange, retarder casing is connected with Gearbox, retarder end cap and retarder casing are fixed, stator is installed on retarder casing, the water channel for cooling is provided with in stator, retarder end cap is fixed with two cylinders, piston and the stator of cylinder are fixed, reduction gearbox output shaft is connected with magnet retainer by output flange, the output shaft of reduction box by output flange by transmission of power to magnet retainer, some pieces of tile shape permanent magnets are uniformly distributed along the circumference on magnet retainer, external diameter and the diameter of stator bore of tile shape permanent magnet maintain gap, transmission shaft flange is connected with magnet retainer, and magnet retainer passes motion to truck drive shaft by transmission shaft flange.
2. the transmission for electric automobile that band according to claim 1 is slow, is characterized in that above-mentioned inner circle puts and is also provided with regulating handle.
3. the transmission for electric automobile that band according to claim 1 is slow, is characterized in that above-mentioned inner conductor is internal layer copper conductor.
4. the transmission for electric automobile that band according to claim 1 is slow, is characterized in that above-mentioned active flange is connected with conductor rotating cylinder by screw; Driven flange is connected with permanent magnetism rotating cylinder by screw.
5. the transmission for electric automobile that band according to claim 1 is slow, is characterized in that the end of above-mentioned rotating shaft is provided with limiting plate, to limit the extreme position that p-m rotor slides on axle.
6. the transmission for electric automobile that band according to claim 1 is slow, it is characterized in that the side of above-mentioned conductor rotating cylinder is provided with louvre, and the cylindrical anchor ring of conductor rotating cylinder is provided with fin.
7. the transmission for electric automobile that band according to claim 1 is slow, is characterized in that the side of above-mentioned permanent magnetism rotating cylinder is provided with louvre.
8. the transmission for electric automobile that the band according to any one of claim 1 to 7 is slow, it is characterized in that above-mentioned reduction box includes casing, pinion, gear wheel, output shaft, wherein shaft support is on casing, pinion is installed in rotating shaft, gear wheel is sleeved on output shaft, gear wheel engages with pinion, and output shaft is also bearing on casing.
9. the transmission for electric automobile that band according to claim 8 is slow, is characterized in that above-mentioned pinion is connected with rotating shaft by key.
10. the transmission for electric automobile that band according to claim 9 is slow, it is characterized in that the two ends of above-mentioned output shaft are bearing on casing by bearing, the outside of one of them bearing is provided with door, and the outside of another bearing is provided with baffle ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520612393.1U CN204810123U (en) | 2015-08-14 | 2015-08-14 | Fast derailleur for electric automobile is delayed in area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520612393.1U CN204810123U (en) | 2015-08-14 | 2015-08-14 | Fast derailleur for electric automobile is delayed in area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204810123U true CN204810123U (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520612393.1U Expired - Fee Related CN204810123U (en) | 2015-08-14 | 2015-08-14 | Fast derailleur for electric automobile is delayed in area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204810123U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425698A (en) * | 2017-08-10 | 2017-12-01 | 迈格钠磁动力股份有限公司 | A kind of automobile-used cartridge type permanent-magnet eddy current retarder |
| CN107968548A (en) * | 2016-10-20 | 2018-04-27 | 中国石油大学(华东) | Permanent-magnet variable-speed device with slow function |
| CN108162734A (en) * | 2017-12-25 | 2018-06-15 | 宁波暴雪信息技术开发有限公司 | A kind of new-energy automobile device and its application method |
| CN111431376A (en) * | 2020-05-09 | 2020-07-17 | 左彦峰 | Magnetic speed reducer |
| CN117175889A (en) * | 2023-11-03 | 2023-12-05 | 东北大学 | Permanent-magnet retarder capable of automatically adjusting braking torque through air cooling |
-
2015
- 2015-08-14 CN CN201520612393.1U patent/CN204810123U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968548A (en) * | 2016-10-20 | 2018-04-27 | 中国石油大学(华东) | Permanent-magnet variable-speed device with slow function |
| CN107425698A (en) * | 2017-08-10 | 2017-12-01 | 迈格钠磁动力股份有限公司 | A kind of automobile-used cartridge type permanent-magnet eddy current retarder |
| CN107425698B (en) * | 2017-08-10 | 2024-04-05 | 迈格钠磁动力股份有限公司 | Cylindrical permanent magnet eddy current retarder for vehicle |
| CN108162734A (en) * | 2017-12-25 | 2018-06-15 | 宁波暴雪信息技术开发有限公司 | A kind of new-energy automobile device and its application method |
| CN111431376A (en) * | 2020-05-09 | 2020-07-17 | 左彦峰 | Magnetic speed reducer |
| CN117175889A (en) * | 2023-11-03 | 2023-12-05 | 东北大学 | Permanent-magnet retarder capable of automatically adjusting braking torque through air cooling |
| CN117175889B (en) * | 2023-11-03 | 2024-01-23 | 东北大学 | Permanent-magnet retarder capable of automatically adjusting braking torque through air cooling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20160814 |
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| CF01 | Termination of patent right due to non-payment of annual fee |