CN109904976A - A kind of two-part New energy automobile motor axis - Google Patents
A kind of two-part New energy automobile motor axis Download PDFInfo
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- CN109904976A CN109904976A CN201910251098.0A CN201910251098A CN109904976A CN 109904976 A CN109904976 A CN 109904976A CN 201910251098 A CN201910251098 A CN 201910251098A CN 109904976 A CN109904976 A CN 109904976A
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Abstract
The invention discloses a kind of two-part New energy automobile motor axis, including motor shaft body；Iron core mounting structure is equipped in the middle part of motor shaft body axial direction and for installing rotor core；The motor shaft body includes in the axis body section and axis body linkage section being coaxially set；The iron core mounting structure includes on axis body section internal end surface and the strip mounting groove that is axially arranged along its own, and it is equipped with heat dissipation cavity axially inwards along it on the end face of axis body section inner end, and make the depth dimensions of heat dissipation cavity more than or equal to the length dimension of mounting groove；The inner end peripheral surface of axis body linkage section is equipped with external splines, and the inside of the external splines is equipped with the first positioning shaft shoulder on axis body linkage section；Be equipped with the internal spline that matches with the external splines on the outer end internal perisporium of heat dissipation cavity, and the external splines can be driven it is mating in internal spline.The present invention has the advantages of can be improved heat-sinking capability, capable of preferably reducing use cost.
Description
Technical field
The invention belongs to technical field of forging, in particular to a kind of two-part New energy automobile motor axis.
Background technique
Axis is the cylindrical object being through among bearing or among wheel or among gear, but also having is partially square
's.Axis be support rotary part and turn round therewith with passing movement,TorqueOr the machine components of moment of flexure.Generally round metal
Rod-shaped, each section can have different diameters.The part for making rotary motion in machine is just mounted on axis.Wherein, motor shaft is to be used for
It is coaxial being set to inside motor stator and be fixedly installed with motor stator, and the component for exporting motor torque.
The motor shaft of new-energy automobile, as driving member, required precision is very high, and it is required to have in use
There is good heat dissipation effect to better meet usability and security requirement.But in its rotation and the process of output power
In, rotor core can generate heat and transfer heat to corresponding position on motor shaft, opposite with rotor core on motor shaft
Position cause the correspondence length section relative closure because being fixed with rotor core so that its radiating efficiency is low, temperature is held after increasing
Easily the structures such as coil on rotor core are damaged.
Motor shaft is for being connected with the transmission of ex-ternal transmission component, usually because it rotates output end in use
In the case of, the rotation output end of motor shaft is the position of destruction of being first worn, after the position wear-out failure, it will cause whole
A motor shaft failure, so that motor shaft use cost increases.Also, present motor shaft structure, in use, motor shaft
As long as above having a certain section of damage failure that will will lead to entire motor shaft to scrap, use cost is caused to increase.
Therefore, how can provide one kind can be improved heat-sinking capability, can preferably reduce two sections of use cost
Formula New energy automobile motor axis, becoming those skilled in the art has technical problem to be solved.
Summary of the invention
In view of the above shortcomings of the prior art, the technical problems to be solved by the present invention are: how providing one kind can mention
High heat-sinking capability can preferably reduce the two-part New energy automobile motor axis of use cost.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions:
A kind of two-part New energy automobile motor axis, including motor shaft body；Iron core is equipped in the middle part of motor shaft body axial direction to pacify
Assembling structure simultaneously is used to install rotor core；It is characterized in that the motor shaft body include in the axis body section that is coaxially set and
Axis body linkage section；The iron core mounting structure includes on axis body section internal end surface and pacifies along the strip that its own is axially arranged
Tankage, and be equipped with heat dissipation cavity axially inwards along it on the end face of axis body section inner end, and make the depth dimensions of heat dissipation cavity be greater than or
Equal to the length dimension of mounting groove；The inner end peripheral surface of axis body linkage section is equipped with external splines, and described on axis body linkage section
The inside of external splines is equipped with the first positioning shaft shoulder；It is equipped on the outer end internal perisporium of heat dissipation cavity in matching with the external splines
Spline, and the external splines can be driven mating in internal spline, and make the medial surface and axis body of the first positioning shaft shoulder
Section inner end end face is affixed setting.
In this way, above-mentioned two-part New energy automobile motor axis, is designed as two sections and is connected by internal spline with external splines,
More convenient two sections of axis can respectively be processed to shorten the process-cycle.In such a way that internal spline is connected with external splines, motor
After axis wear-out failure, corresponding the motor shaft for generating abrasion and destroying can be replaced, in addition one section of unspoiled shaft part
It can continue to use, so as to preferably reduce use cost.Above-mentioned motor shaft at work, because being provided with heat dissipation cavity,
The heat that rotor coil can be generated is transferred on motor shaft through rotor core, can because of the heat dissipation cavity being arranged on motor shaft
So that enabling heat is opposite to distribute in heat transfer to heat dissipation cavity, to reach better heat dissipation effect, to reach
To the purpose of protection rotor coil and rotor core, to improve the heat dissipation effect of entire motor shaft.The depth dimensions of heat dissipation cavity
Length dimension with mounting groove in iron core mounting structure is in corresponding, this can further improve heat dissipation effect, simultaneously
Also it can preferably guarantee the rigidity of motor shaft.The structure construction of motor shaft causes it in use can be to rotor coil
With certain protective effect, have the advantages that service performance is more preferable.To sum up, the motor shaft of above structure has and can be improved
Heat-sinking capability, the advantages of capable of preferably reducing use cost.
As optimization, the internal spline and external splines are interference fitted.
In this way, design is more reasonable, connect relatively reliable.
As optimization, the internal spline and external splines are H6/s6 cooperation.
In this way, design is more reasonable, connect relatively reliable.
As optimization, inlet opening is provided on the end face of axis body section outer end and along its own axial direction；On axis body linkage section
Equipped with its through-hole being axially arranged is run through, through-hole inner end is connected with heat dissipation cavity outer end and in connection setting；It uses the outer end of inlet opening
It is connected in water-supply structure.
In this way, the motor shaft of above structure is in use, water inlet outer end of hole for be connected with water-supply structure and to its
It supplies water, water enters inside motor shaft to be flowed axially inwards, and is rotated in the motor shaft course of work, allows the water to uniformly flow
Onto the internal perisporium of heat dissipation cavity, to reach the cooling to motor shaft, preferably for the position opposite with rotor core on motor shaft
The cooling heat dissipation set, and water energy is enough from through-hole outflow, so that water circulates, heat dissipation effect can be improved.
As optimization, the inlet opening includes the inlet opening enlarged diameter section of inner end and the inlet opening reduced diameter section of outer end,
So that inlet opening is integrally in shoulder hole structure；And nozzle is installed in the outer end of inlet opening enlarged diameter section, the water inlet end of nozzle with
Reduced diameter section conducting in inlet opening is connected, and the outer end of inlet opening reduced diameter section with water-supply structure for being connected.
In this way, it is whole in shoulder hole structure by the way that inlet opening to be designed as, installation nozzle can be facilitated, and in inlet opening
Installation settings nozzle is held, nozzle can select atomizer, and nozzle can spray water mist and act on the internal perisporium of heat dissipation cavity,
The uniformity of water spray is improved, so that heat dissipation is more uniform.Can preferably it cool down to entire motor shaft, to improve entire
The radiating efficiency of motor shaft, and it is uniform to radiate.By the way that nozzle is arranged, so that entirely radiator structure is simpler and can be further
Raising heat-sinking capability.
As optimization, the both ends of through-hole are equipped with rounding corner structure.
In this way, design is more reasonable.
As optimization, the axis body linkage section is integrally in the small stepped shaft structure of the big outer diameter of inner end diameter, and in axis
First positioning shaft shoulder is equipped on the outside of body linkage section big end.
In such manner, it is possible to preferably carry out axially position to axis body linkage section, it can preferably guarantee the essence of entire motor shaft
Degree requires
As optimization, the through-hole includes through-hole enlarged diameter section corresponding with axis body linkage section big end, and with axis body linkage section
The corresponding through-hole reduced diameter section of small end；And making through-hole integrally is in the small shoulder hole structure of the inner end big outer diameter of diameter.
In this way, by the shoulder hole structure that through-hole setting is small in the big outer diameter of inner end diameter, so that axis body linkage section
On the part wall thickness that is inserted into heat dissipation cavity it is smaller, can be improved heat dissipation effect.
As optimization, the diameter of first positioning shaft shoulder is less than or equal to the diameter of axis body section, and in the first locating shaft
The peripheral surface of shoulder is equipped with the first recessing groove, and first recessing groove is connected and along the circumferential direction of axis body section with mounting groove
It is arranged in connection.
In this way, total design is more reasonable, and installation fixed rotor iron core can be facilitated.
As optimization, the axis body section is integrally in the small stepped shaft structure of the big outer diameter of inner end diameter, and in axis body section
It is in transmission output that the outer end of reduced diameter section is equipped with external splines parallel.
In this way, structure is simpler, it is more reasonable to design.
As optimization, the side away from the axis body linkage section in the larger diameter end of axis body section is equipped with the second locating shaft
Shoulder, and the second recessing groove is equipped in the peripheral surface of the second positioning shaft shoulder, second recessing groove is connected with mounting groove and edge
The circumferential direction of axis body section is in connection setting.
In such manner, it is possible to which more convenient carry out axially position to the rotor core being installed in axis body section.
As optimization, the mounting groove is equally distributed two along axis body section circumferencial direction.
In such manner, it is possible to which more convenient be installed on rotor core in axis body section.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in the specific embodiment of the invention.
Fig. 2 is the cross-sectional view (nozzles not shown in figure) in Fig. 1 vertical direction.
Fig. 3 is the cross-sectional view in Fig. 1 horizontal direction.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing.
When specific implementation: as shown in Figures 1 to 3, a kind of two-part New energy automobile motor axis, including motor shaft body 1；?
The axial middle part of motor shaft body is equipped with iron core mounting structure and for installing rotor core；The motor shaft body includes in coaxial
The axis body section 2 and axis body linkage section 3 of line setting；The iron core mounting structure includes on axis body section internal end surface and along its own
The strip mounting groove 4 being axially arranged, and heat dissipation cavity 5 is equipped with axially inwards along it on the end face of axis body section inner end, and to dissipate
The depth dimensions of hot chamber are greater than or equal to the length dimension of mounting groove；The inner end peripheral surface of axis body linkage section is equipped with external splines
15, and the inside of the external splines is equipped with the first positioning shaft shoulder 11 on axis body linkage section；On the outer end internal perisporium of heat dissipation cavity
Equipped with the internal spline 16 to match with the external splines, and the external splines 15 can be driven it is mating in internal spline 16,
And the medial surface of the first positioning shaft shoulder 11 and axis body section inner end end face is made to be affixed setting.
In this way, above-mentioned two-part New energy automobile motor axis, is designed as two sections and is connected by internal spline with external splines,
More convenient two sections of axis can respectively be processed to shorten the process-cycle.In such a way that internal spline is connected with external splines, motor
After axis wear-out failure, corresponding the motor shaft for generating abrasion and destroying can be replaced, in addition one section of unspoiled shaft part
It can continue to use, so as to preferably reduce use cost.Above-mentioned motor shaft at work, because being provided with heat dissipation cavity,
The heat that rotor coil can be generated is transferred on motor shaft through rotor core, can because of the heat dissipation cavity being arranged on motor shaft
So that enabling heat is opposite to distribute in heat transfer to heat dissipation cavity, to reach better heat dissipation effect, to reach
To the purpose of protection rotor coil and rotor core, to improve the heat dissipation effect of entire motor shaft.The depth dimensions of heat dissipation cavity
Length dimension with mounting groove in iron core mounting structure is in corresponding, this can further improve heat dissipation effect, simultaneously
Also it can preferably guarantee the rigidity of motor shaft.The structure construction of motor shaft causes it in use can be to rotor coil
With certain protective effect, have the advantages that service performance is more preferable.To sum up, the motor shaft of above structure has and can be improved
Heat-sinking capability, the advantages of capable of preferably reducing use cost.
In present embodiment, the internal spline 16 is interference fitted with external splines 15.
In this way, design is more reasonable, connect relatively reliable.
In present embodiment, the internal spline 16 is H6/s6 cooperation with external splines 15.
In this way, design is more reasonable, connect relatively reliable.
In present embodiment, inlet opening 6 is provided on 2 outer end end face of axis body section and along its own axial direction；In axis
Body linkage section 3 is equipped with the through-hole 10 being axially arranged through it, and through-hole inner end is connected with heat dissipation cavity outer end and in connection setting；Into
The outer end in water hole with water-supply structure for being connected.
In this way, the motor shaft of above structure is in use, water inlet outer end of hole for be connected with water-supply structure and to its
It supplies water, water enters inside motor shaft to be flowed axially inwards, and is rotated in the motor shaft course of work, allows the water to uniformly flow
Onto the internal perisporium of heat dissipation cavity, to reach the cooling to motor shaft, preferably for the position opposite with rotor core on motor shaft
The cooling heat dissipation set, and water energy is enough from through-hole outflow, so that water circulates, heat dissipation effect can be improved.When it is implemented,
Sealing structure is provided between the inner end and heat dissipation cavity outer end internal perisporium of axis body linkage section, sealing structure can be using setting one
Waterproof gasket is enclosed, can preferably avoid water from flowing out to outside between internal spline and the gap of external splines in this way, so that design
More rationally.
In present embodiment, the inlet opening 6 includes the inlet opening enlarged diameter section 8 of inner end and the water inlet of outer end
Hole reduced diameter section 9, so that inlet opening is integrally in shoulder hole structure；And nozzle is installed in the outer end of inlet opening enlarged diameter section 8, it sprays
The water inlet end of mouth is connected with inlet opening reduced diameter section to be connected, and the outer end of inlet opening reduced diameter section with water-supply structure for being connected.
In this way, it is whole in shoulder hole structure by the way that inlet opening to be designed as, installation nozzle can be facilitated, and in inlet opening
Installation settings nozzle is held, nozzle can select atomizer, and nozzle can spray water mist and act on the internal perisporium of heat dissipation cavity,
The uniformity of water spray is improved, so that heat dissipation is more uniform.Can preferably it cool down to entire motor shaft, to improve entire
The radiating efficiency of motor shaft, and it is uniform to radiate.By the way that nozzle is arranged, so that entirely radiator structure is simpler and can be further
Raising heat-sinking capability.
In present embodiment, the both ends of through-hole 10 are equipped with rounding corner structure.
In this way, design is more reasonable.
In present embodiment, the whole multi-diameter shaft knot small in the big outer diameter of inner end diameter of the axis body linkage section 3
Structure, and first positioning shaft shoulder 11 is equipped on the outside of axis body linkage section big end.
In such manner, it is possible to preferably carry out axially position to axis body linkage section, it can preferably guarantee the essence of entire motor shaft
Degree requires
In present embodiment, the through-hole 10 includes through-hole enlarged diameter section 12 corresponding with axis body linkage section big end, and
Through-hole reduced diameter section 13 corresponding with axis body linkage section small end；And making through-hole integrally is in the small rank of the inner end big outer diameter of diameter
Terraced pore structure.
In this way, by the shoulder hole structure that through-hole setting is small in the big outer diameter of inner end diameter, so that axis body linkage section
On the part wall thickness that is inserted into heat dissipation cavity it is smaller, can be improved heat dissipation effect.
In present embodiment, the diameter of first positioning shaft shoulder 11 is less than or equal to the diameter of axis body section 2, and
The peripheral surface of positioning shaft shoulder is equipped with the first recessing groove, and first recessing groove is connected and along the week of axis body section with mounting groove
To direction in connection setting.
In this way, total design is more reasonable, and installation fixed rotor iron core can be facilitated.
In present embodiment, the whole stepped shaft structure small in the big outer diameter of inner end diameter of the axis body section 2, and
Be equipped with external splines in the outer end of axis body section reduced diameter section is in transmission output parallel.
In this way, structure is simpler, it is more reasonable to design.
In present embodiment, the side away from the axis body linkage section in the larger diameter end of axis body section 2 is equipped with
Second positioning shaft shoulder 14, and the second recessing groove is equipped in the peripheral surface of the second positioning shaft shoulder, second recessing groove and peace
Tankage is connected and along the circumferential direction of axis body section in connection setting.
In such manner, it is possible to which more convenient carry out axially position to the rotor core being installed in axis body section.
In present embodiment, the mounting groove 4 is equally distributed two along axis body section circumferencial direction.
In such manner, it is possible to which more convenient be installed on rotor core in axis body section.
Claims (10)
1. a kind of two-part New energy automobile motor axis, including motor shaft body (1)；Iron is equipped in the middle part of motor shaft body axial direction
Core mounting structure simultaneously is used to install rotor core；It is characterized in that, the motor shaft body includes in the axis body being coaxially set
Section (2) and axis body linkage section (3)；The iron core mounting structure includes on axis body section internal end surface and is axially arranged along its own
Strip mounting groove (4), and be equipped with heat dissipation cavity (5) axially inwards along it on the end face of axis body section inner end, and make heat dissipation cavity
Depth dimensions be greater than or equal to mounting groove length dimension；The inner end peripheral surface of axis body linkage section is equipped with external splines (15),
And the inside of the external splines is equipped with the first positioning shaft shoulder (11) on axis body linkage section；It is set on the outer end internal perisporium of heat dissipation cavity
Have an internal spline (16) to match with the external splines, and the external splines (15) can be driven it is mating in internal spline (16)
It is interior, and the medial surface of the first positioning shaft shoulder (11) and axis body section inner end end face is made to be affixed setting.
2. a kind of two-part New energy automobile motor axis as described in claim 1, which is characterized in that the internal spline (16) with
External splines (15) interference fit.
3. a kind of two-part New energy automobile motor axis as described in claim 1, which is characterized in that the internal spline (16) with
External splines (15) is H6/s6 cooperation.
4. a kind of two-part New energy automobile motor axis as described in claim 1, which is characterized in that in axis body section (2) outer end
Inlet opening (6) are provided on end face and along its own axial direction；The through-hole being axially arranged through it is equipped on axis body linkage section (3)
(10), through-hole inner end is connected with heat dissipation cavity outer end and in connection setting；The outer end of inlet opening with water-supply structure for being connected.
5. a kind of two-part New energy automobile motor axis as claimed in claim 4, which is characterized in that inlet opening (6) packet
The inlet opening enlarged diameter section (8) of inner end and the inlet opening reduced diameter section (9) of outer end are included, so that inlet opening is integrally in stepped hole
Structure；And nozzle is installed in the outer end of inlet opening enlarged diameter section (8), phase is connected with inlet opening reduced diameter section in the water inlet end of nozzle
Even, the outer end of inlet opening reduced diameter section with water-supply structure for being connected.
6. a kind of two-part New energy automobile motor axis as claimed in claim 4, which is characterized in that the both ends of through-hole (10)
It is equipped with rounding corner structure.
7. a kind of two-part New energy automobile motor axis as claimed in claim 6, which is characterized in that the axis body linkage section
(3) the whole stepped shaft structure small in the big outer diameter of inner end diameter, and described first is equipped on the outside of axis body linkage section big end
Positioning shaft shoulder (11).
8. a kind of two-part New energy automobile motor axis as claimed in claim 7, which is characterized in that the through-hole (10) includes
Through-hole enlarged diameter section (12) corresponding with axis body linkage section big end, and through-hole reduced diameter section corresponding with axis body linkage section small end
(13)；And making through-hole integrally is in the small shoulder hole structure of the inner end big outer diameter of diameter.
9. a kind of two-part New energy automobile motor axis as claimed in claim 7, which is characterized in that first positioning shaft shoulder
(11) diameter is less than or equal to the diameter of axis body section (2), and the first recessing groove is equipped in the peripheral surface of positioning shaft shoulder, and
First recessing groove is connected and along the circumferential direction of axis body section in connection setting with mounting groove.
10. a kind of two-part New energy automobile motor axis as described in claim 1, which is characterized in that the axis body section (2) is whole
The body stepped shaft structure small in the big outer diameter of inner end diameter, and be equipped with external splines in the outer end of axis body section reduced diameter section and be in parallel
Transmission output；
The side away from the axis body linkage section in the larger diameter end of axis body section (2) is equipped with the second positioning shaft shoulder (14), and
The second recessing groove is equipped in the peripheral surface of the second positioning shaft shoulder, second recessing groove is connected with mounting groove and along axis body section
Circumferential direction in connection setting；
The mounting groove (4) is equally distributed two along axis body section circumferencial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910251098.0A CN109904976B (en) | 2019-03-29 | 2019-03-29 | Two segmentation new energy automobile motor shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910251098.0A CN109904976B (en) | 2019-03-29 | 2019-03-29 | Two segmentation new energy automobile motor shafts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109904976A true CN109904976A (en) | 2019-06-18 |
| CN109904976B CN109904976B (en) | 2021-01-26 |
Family
ID=66954949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910251098.0A Active CN109904976B (en) | 2019-03-29 | 2019-03-29 | Two segmentation new energy automobile motor shafts |
Country Status (1)
| Country | Link |
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| CN (1) | CN109904976B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113014016A (en) * | 2021-02-09 | 2021-06-22 | 珠海格力电器股份有限公司 | Cooling system, rotor structure and have its motor |
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| CN109904976B (en) | 2021-01-26 |
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