CN207526899U - Motor torque export structure - Google Patents
Motor torque export structure Download PDFInfo
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- CN207526899U CN207526899U CN201721589902.9U CN201721589902U CN207526899U CN 207526899 U CN207526899 U CN 207526899U CN 201721589902 U CN201721589902 U CN 201721589902U CN 207526899 U CN207526899 U CN 207526899U
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- external splines
- spline
- transition
- flank
- motor torque
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Abstract
The utility model provides a kind of motor torque export structure, and including motor and speed change gear, the stator of motor is engaged with speed change gear gear, and the output terminal of stator is opened up by external splines, and the input terminal of speed change gear opens up internal spline；External splines is involute spline, on the transverse tooth thickness direction of external splines, along the side of its powered rotation output, is offered in the middle part of the flank by external splines, to the First Transition fillet of its flank top transition.The external splines rotation of stator drives internal spline rotation, by the flank end face of power output side on external splines, open up First Transition fillet, First Transition fillet is located at the top of the spline tooth thickness direction side of external splines, so as to reduce the impact vibration during torque drive, and then reduce the noise during motor power output.
Description
Technical field
The utility model is related to electric vehicle engineering field, more specifically to a kind of motor torque export structure.
Background technology
With environmental problem protrusion and emission regulation it is increasingly strict, occupation rate of the electric vehicle in market starts gradually
It is promoted, each cart enterprise continues to increase the research and development of electric vehicle and input, and industrialization pace is constantly accelerated.With traditional combustion engine vapour
Vehicle is compared, one of the major impetus device of motor as electric vehicle, the comfort of vehicle is brought in industrialization new
Problem and challenge.NVH (noise, vibration and sound vibration roughness, the english abbreviation of Noise, Vibration, Harshness) conduct
The important indicator of passenger car comfort also has electric vehicle strict requirements similary with traditional vehicle.Since motor is with starting
The otherness of machine causes electric vehicle NVH to become universal common problem, after being matched to electric system and with vehicle
NVH performances propose new requirement.
Motor for Electric Automobile is generally spent when transmitting connection into action edge with gearbox or retarder using involute-type
Key connection.During motor is connect with speed changer or retarder, general motor is external splines, and speed changer or retarder are interior
Spline.Due to the tooth form of involute gear, teeth directional, there are certain errors during processing and assembling, cause inside and outside flower
The concentricity of key can not be completely secured.During spline transmits torque, when spline tooth is engaged and is disengaged from, by
It is to cause electric vehicle electricity consumption in profile error, the impact, the exciting that are caused angular speed pulsatile change by load metamorphism and generated etc.
The principal element of machine noise, even the very high spline of the generation accuracy of manufacture of this phenomenon is also difficult to avoid that.
Therefore, motor how is solved because of the noise generated in its spline power transmission process, is current people in the art
Member's urgent problem to be solved.
Utility model content
In view of this, the utility model provides a kind of motor torque export structure, to solve motor because of its spline power
The noise generated in transmittance process.
In order to achieve the above object, the utility model provides following technical solution：
A kind of motor torque export structure, including motor and speed change gear, the stator of the motor and the speed change gear
Gear engages, and the output terminal of the stator is opened up by external splines, and the input terminal of the speed change gear opens up internal spline；
The external splines is involute spline, on the transverse tooth thickness direction of the external splines, the side that is exported along its powered rotation,
It offers in the middle part of the flank by the external splines, to the First Transition fillet of the flank top transition of the external splines.
Preferably, in above-mentioned motor torque export structure, both sides of the external splines along its transverse tooth thickness direction offer
In the middle part of the flank of the external splines, to the First Transition fillet of the flank top transition of the external splines.
Preferably, in above-mentioned motor torque export structure, the both sides in the transverse tooth thickness direction of the internal spline offer, by
To the third knuckle of transition at the top of its flank in the middle part of the flank of the internal spline.
Preferably, in above-mentioned motor torque export structure, the external splines is opened up along the both sides in its tooth width direction
Have, by the side in the tooth width direction, to the second knuckle of the top transition of the tooth.
Preferably, in above-mentioned motor torque export structure, the both sides of the spline tooth width direction of the internal spline are opened
It is equipped with, by the 4th knuckle of its lateral top transition of the spline tooth width direction of the internal spline.
Preferably, in above-mentioned motor torque export structure, bearings end of the stator far from its power output end,
Setting is set up in the gasket between the bearings end and the electric machine casing.
Preferably, in above-mentioned motor torque export structure, the gasket is waveform spring gasket.
Motor torque export structure provided by the utility model, including motor and speed change gear, the stator and speed change of motor
Device gear engages, and the output terminal of stator is opened up by external splines, and the input terminal of speed change gear opens up internal spline；External splines is gradually opens
Line spline, on the tooth thickness direction of external splines, the side that is exported along its powered rotation is offered in the middle part of the flank by external splines,
The First Transition fillet of transition at the top of to the flank of external splines.Motor and speed change gear by the external splines on stator and become quick-mounting
The internal spline put carries out power by spline tooth engagement and transmits output, and the external splines rotation of stator drives internal spline rotation, outer flower
Key is offseted with internal spline by the side of its tooth thickness direction and drives rotation, by the flank of external splines upper spline tooth power output side
End face opens up First Transition fillet, and First Transition fillet is located at the top of flank thickness direction side, by the spline tooth of external splines
Tooth in the middle part of transit to tooth crest, so as to reduce impact vibration of the spline tooth during torque drive, and then reduce motor
Noise during power output.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the attachment structure schematic diagram of motor torque export structure provided by the utility model；
Fig. 2 is the spline tooth tooth-shape structure schematic diagram of external splines in Fig. 1；
Fig. 3 is the top structure schematic diagram of spline tooth in Fig. 2；
Fig. 4 is the thickness direction schematic diagram of spline tooth in Fig. 2.
Specific embodiment
The utility model discloses a kind of motor torque export structures, solve motor because in its spline power transmission process
The noise of generation.
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clear, complete description, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Embodiment based on the utility model, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As Figure 1-Figure 4, Fig. 1 is the attachment structure schematic diagram of motor torque export structure provided by the utility model；
Fig. 2 is the spline tooth tooth-shape structure schematic diagram of external splines in Fig. 1；Fig. 3 is the top structure schematic diagram of spline tooth in Fig. 2；Fig. 4 is
The thickness direction schematic diagram of spline tooth in Fig. 2.
The utility model provides a kind of motor torque export structure, including motor and speed change gear, the stator 3 of motor with
7 gear of speed change gear engages, and the output terminal of stator 3 is opened up by external splines 6, and the input terminal of speed change gear 7 opens up internal spline；Outer flower
Key 6 is involute spline, and on flank thickness direction, the side that is exported along its powered rotation offers the flank by external splines
Middle part, to the First Transition fillet 8 of the flank top transition of spline tooth.Motor and speed change gear 7, by the external splines on stator 3
6 and the internal spline of speed change gear 7, pass through spline tooth engagement and carry out power and transmit output, the rotation of external splines 6 of stator 3, which drives, to be become
The internal spline rotation of speed variator 7, external splines 6 is offseted with internal spline by the side of its tooth thickness direction and drives rotation, by external splines 6
The increment face of upper spline tooth power output side, opens up First Transition fillet 8, and First Transition fillet 8 is located at external splines flank thickness
The top of direction side is spent, by transitting to tooth crest in the middle part of the tooth of external splines 6, so as to reduce helical gear during torque drive
Impact vibration, and then reduce motor power output during noise.Speed change gear 7 can be retarder or speed changer,
Input terminal is inner gear structure, assembles and closes with stator sleeve, spline tooth engaged transmission.
In one specific embodiment of this case, both sides of the spline tooth along its gear thickness direction are offered by external splines
In the middle part of flank, to the First Transition fillet 8 of its flank top transition.The external splines 6 of stator 3 uses evolvent type external splines, will
The tooth thickness direction both sides of spline tooth open up First Transition fillet 8, pass through the flank thickness direction two to involute outer spline
The top of side carries out correction of the flank shape so that when spline tooth carries out torque transmission in the both sides of its transverse tooth thickness degree, passes through First Transition fillet 8
It is mutually impacted caused by being engaged between structure reduction spline tooth, further reduces impact endurance test shock, reduce drive noise.
In one specific embodiment of this case, the both sides in the spline tooth thickness direction of internal spline offer, by internal spline
To the third knuckle of its tooth crest transition in the middle part of spline tooth.Stator 3 is engaged with the transmission of speed change gear 7, external splines 6 and interior flower
Spline tooth, which offsets, in key engagement process carries out torque output, by the way that internal spline is opened up third transition at the top of its transverse tooth thickness direction
Fillet so that internal spline and external splines 6 are offseted in intermeshing at the top of spline tooth by arc structure, improve face hair
Raw gluing, impact vibration weaken, and avoid because of involute inner spline, external splines connection, because load acts on lower produce when transmitting torque
Raw flexible deformation, spline tooth flexural deformation avoid the involute of spline tooth from distorting, and cause to contact uneven, load between spline tooth
Lotus is unevenly distributed, and outlet deformation exciting causes noise, and then optimizes sound when motor transmits torque.
In one specific embodiment of this case, the spline tooth of external splines is offered along the both sides in its tooth width direction, by spending
The side in the tooth width direction of key teeth, to the second knuckle 9 of the tooth crest transition of spline tooth.Along its tooth width direction, i.e.,
Along the axial direction of stator 3, the both sides of spline tooth by the end of spline tooth, open up by the side of helical gear width direction, specially spend
The impact that spline tooth generates in engagement process to the second knuckle 9 of the tooth top transition of spline tooth, is reduced in the middle part of key teeth
Vibration.
In one specific embodiment of this case, the both sides of the spline tooth width direction of internal spline offer, by internal spline
4th knuckle of its lateral top transition of the one of spline tooth width direction.The internal spline of speed change gear 7 is and is spent in stator 3
The spline toothing of key transmission cooperation, both for involute spline tooth, by spline of the spline tooth of internal spline along facewidth both ends
Tooth opens up the 4th knuckle so that when internal spline and external splines engagement contact, two end of engagements in gear width direction avoid
Wedge angle impacts, and gear is avoided to engage exciting, so as to reduce when gear engages since gear engagement impact causes involute to distort, leads
Cause contact is uneven, and load is unevenly distributed, and reduces noise in Meshing Process of Spur Gear.
In one specific embodiment of this case, bearings end of the stator 3 far from its power output end, setting is set up in bearing
Gasket 1 between 2 support end and electric machine casing 5.Since internal spline and external splines along the correction of the flank shape of its thickness direction or work as motor
Fever causes housing, bearing, axis when different materials deform so that in 4 transmittance process of stator 3 and rotor, stator 3 and rotor 4
Vibration generate rotor clearance, cause engagement when spline tooth between exciting, motor stator 3 bearing 2 support end with electricity
Gasket 1 is set between casing body 5, and the outer end that specially rotor 4 is supported with bearing 2 is provided by gasket 1 to motor stator 3
Axial support so as to the noise that the vibrations of stator 3, deformation is avoided to generate, further ensures noise reduction.
Preferably, gasket 1 is waveform spring gasket.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications of these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide range consistent with features of novelty.
Claims (7)
1. a kind of motor torque export structure, which is characterized in that including motor and speed change gear, the stator of the motor with it is described
Speed change gear gear engages, and the output terminal of the stator is opened up by external splines, and the input terminal of the speed change gear opens up internal spline；
The external splines is involute spline, and on the transverse tooth thickness direction of the external splines, the side that is exported along its powered rotation opens up
Have in the middle part of the flank by the external splines, to the First Transition fillet of the flank top transition of the external splines.
2. motor torque export structure according to claim 1, which is characterized in that the external splines is along its transverse tooth thickness direction
Both sides offer the middle part of the flank by the external splines, justify to the First Transition of the flank top transition of the external splines
Angle.
3. motor torque export structure according to claim 2, which is characterized in that the two of the transverse tooth thickness direction of the internal spline
Side offers, from the flank middle part of the internal spline to the third knuckle of transition at the top of its flank.
4. motor torque export structure according to claim 1, which is characterized in that the external splines is along its spline tooth width
The both sides in direction offer, by the side of the spline tooth width direction of the external splines, to the spline tooth top of the external splines
Second knuckle of portion's transition.
5. motor torque export structure according to claim 4, which is characterized in that the spline tooth width side of the internal spline
To both sides offer, by the spline tooth width direction of the internal spline one it is lateral its top transition the 4th transition circle
Angle.
6. motor torque export structure according to claim 1, which is characterized in that the stator is far from its power output end
Bearings end, setting is set up in gasket between the bearings end and the electric machine casing.
7. motor torque export structure according to claim 6, which is characterized in that the gasket is waveform spring gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721589902.9U CN207526899U (en) | 2017-11-23 | 2017-11-23 | Motor torque export structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721589902.9U CN207526899U (en) | 2017-11-23 | 2017-11-23 | Motor torque export structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207526899U true CN207526899U (en) | 2018-06-22 |
Family
ID=62580080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721589902.9U Active CN207526899U (en) | 2017-11-23 | 2017-11-23 | Motor torque export structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207526899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427596A (en) * | 2021-11-29 | 2022-05-03 | 中国航发沈阳发动机研究所 | Method for solving local wear of spline caused by deflection of shaft axis |
-
2017
- 2017-11-23 CN CN201721589902.9U patent/CN207526899U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427596A (en) * | 2021-11-29 | 2022-05-03 | 中国航发沈阳发动机研究所 | Method for solving local wear of spline caused by deflection of shaft axis |
| CN114427596B (en) * | 2021-11-29 | 2024-01-30 | 中国航发沈阳发动机研究所 | Method for solving local abrasion of spline caused by axial lead deflection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chongqing Changan New Energy Automotive Technology Co., Ltd. Assignor: Chongqing Changan Automobile Co., Ltd.|Chongqing Chang'an New Energy Automobile Co., Ltd. Contract record no.: 2018500000022 Denomination of utility model: Motor torque output structure Granted publication date: 20180622 License type: Exclusive License Record date: 20181130 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200107 Address after: 400023, No. 260, Jianxin East Road, Jiangbei District, Chongqing Patentee after: Chongqing Chang'an Automobile Co., Ltd. Address before: 400023, No. 260, Jianxin East Road, Jiangbei District, Chongqing Co-patentee before: Chongqing Chang'an New Energy Automobile Co., Ltd. Patentee before: Chongqing Chang'an Automobile Co., Ltd. |