CN207884392U - Compact traction electric machine end cap - Google Patents
Compact traction electric machine end cap Download PDFInfo
- Publication number
- CN207884392U CN207884392U CN201820375194.7U CN201820375194U CN207884392U CN 207884392 U CN207884392 U CN 207884392U CN 201820375194 U CN201820375194 U CN 201820375194U CN 207884392 U CN207884392 U CN 207884392U
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- electric machine
- traction electric
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- end cap
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- 238000009423 ventilation Methods 0.000 claims abstract description 74
- 238000004804 winding Methods 0.000 claims abstract description 20
- 239000004519 grease Substances 0.000 claims abstract description 19
- 239000000945 filler Substances 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000005435 mesosphere Substances 0.000 claims 1
- 230000004323 axial length Effects 0.000 abstract description 5
- 239000000314 lubricant Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 12
- 230000003137 locomotive effect Effects 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000002699 waste material Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The utility model provides a kind of compact traction electric machine end cap, is related to traction electric machine technical field.Compact traction electric machine end cap, including：Motor axis hole；Labyrinth ring.Labyrinth ring is set to motor axis hole and coaxial with motor axis hole, and labyrinth ring is located inside.Bearing chamber, the side in close outside of the bearing chamber close to motor axis hole and positioned at labyrinth ring, labyrinth ring is for preventing grease from flowing to inside from bearing chamber.Ventilation hole, the quantity of ventilation hole is multiple, multiple ventilation holes constitute multiple ventilation ring layers, and multiple ventilation ring layers and motor axis hole are coaxially disposed, and the ratio of the ratio of circular arc where each ventilation hole of every layer of ventilation ring layer and the circular arc where the adjacent ventilation hole of adjacent ventilation ring layer is roughly equal.The profile that the side positioned inside of multiple ventilation ring layers forms is similar to the contour shape of stator winding end.Compact traction electric machine end cover structure is compact and succinct, is conducive to reduce motor axial length, has taken into account draught area and mechanical strength.
Description
Technical field
The utility model is related to traction electric machine technical fields, in particular to a kind of compact traction electric machine end cap.
Background technology
Traction electric machine is trunk railway electric locomotive, industrial and mineral electric locomotive, diesel electric locomotive and various electric vehicles
Motor on (such as battery car, city electric car, underground railway motor vehicle) for traction.Traction electric machine includes that traction is electronic
Machine, pulling electric generator, stand-by motor etc..
As a part for motor, end cap is connected with engine base.End cap structure due to the reasons such as capacity motor, purposes difference is each
It is different.
Currently, in the prior art, solves existing traction electric machine end cap to a certain extent there are inner walls thicker, weight phase
To heavier, the problems such as bad mechanical strength.
But there is also some defects for existing end cap：
1. general end cap is complicated, for example with structure as annular side plate and bottom plate, increases mold manufacturing
Difficulty, and further result in the possibility rising that manufacturing cost rises and occur defect；
2. draught area is small, windage is increased, reduces ventilation quantity, there is also increase trains to be hit in operation by foreign matter
The problem of possibility of wound.
Utility model content
The purpose of this utility model is to provide a kind of compact traction electric machine end caps, and simple and compact structure can
On the express locomotive traction electric machine big suitable for power requirement, volume requirement is small, and reduce manufacture difficulty and in locomotive operation
The middle possibility wounded.
What the embodiments of the present invention were realized in：
The embodiments of the present invention provide a kind of compact traction electric machine end cap, including：
Motor axis hole；
Labyrinth ring, with the close stator winding end after traction electric machine of the compact traction electric machine end cap
Side be inside, the side opposite with the inside be outside, the labyrinth ring be set to the motor axis hole and with it is described
Motor axis hole is coaxial, and the labyrinth ring is located at the inside；
Bearing chamber, the bearing chamber is close to the motor axis hole and positioned at the labyrinth ring close to the one of the outside
Side, the labyrinth ring is for preventing grease from flowing to the inside from the bearing chamber；
The quantity of ventilation hole, the ventilation hole is multiple, and multiple ventilation holes constitute multiple ventilation ring layers, multiple described
Ring layer of divulging information and motor axis hole coaxial arrangement, the ratio of the circular arc where each of every layer of described ventilation ring layer ventilation hole
Example is roughly equal with the ratio of the circular arc where the adjacent ventilation hole of the adjacent ventilation ring layer；
The wheel profile for the profile and stator winding end that the side positioned at the inside of multiple ventilation ring layers forms
Shape is similar.
In addition, the compact traction electric machine end cap that embodiment according to the present utility model provides, can also have following attached
The technical characteristic added：
In the alternative embodiment of the utility model, the quantity of the ventilation ring layer is three, is with the motor axis hole
Center, three ventilation ring layers are respectively inner layer, intermediate ring layer and outer layer, with the compact traction electric machine end cap
It is the plane of reference positioned at plane where the end face in the outside；
The profile positioned at the inside side of the inner layer from close to described motor axis hole one end in described
Between ring layer one end move closer to the plane of reference, the profile positioned at the inside side of the intermediate ring layer is from described
One end of one end of ring layer to the close outer layer first moves closer to the plane of reference and is gradually distance from the plane of reference again；It is described
The profile positioned at the inside side of outer layer is from close to one end of the intermediate ring layer to one far from the intermediate ring layer
End is gradually distance from the plane of reference.
In the alternative embodiment of the utility model, the inner layer positioned at the inside side profile, it is described in
Between ring layer it is in the arc-shaped positioned at the profile of the inside side and the set of contours positioned at the inside side of the outer layer
Profile.
In the alternative embodiment of the utility model, the profile of the arc-shaped profile and stator winding end is concentric, institute
The radius of curvature for stating arc-shaped profile differs 10-20mm with the radius of curvature of stator winding end.
In the alternative embodiment of the utility model, the ventilation hole is arc-shaped waist hole.
In the alternative embodiment of the utility model, the ventilation hole of the inner layer it is radial in the inner layer
Width is 18-22mm.
In the alternative embodiment of the utility model, the ventilation hole of the intermediate ring layer in the intermediate ring layer diameter
To width be 16-20mm.
In the alternative embodiment of the utility model, the ventilation hole of the outer layer it is radial in the outer layer
Width is 14-18mm.
In the alternative embodiment of the utility model, the compact traction electric machine end cap also has filling duct and leakage
Duct；
The filling duct is connected to the bearing chamber, and the filler in the filling duct is located at the outside, described to add
Orifice road extends to side wall and the bottom wall intersection of the bearing chamber from filler；
The leakage duct is connected to the bearing chamber, and the leakage hole in the leakage duct is located at the outside, described to let out
Leakage hole road extends to the inner wall of the bearing chamber from leakage hole.
In the alternative embodiment of the utility model, the compact traction electric machine end cap also has bearing temperature detection
Hole, the bearing temperature detection hole is for mounting temperature sensor with monitoring bearing temperature.
The utility model has the beneficial effects that：
Compact traction electric machine end cap, compact overall structure and succinct, good heat dissipation effect, for the lubricant effect of bearing
It is good, the axial length of reduction traction electric machine is also helped, reduces the weight and volume of traction electric machine entirety indirectly.It realizes above-mentioned
The mechanical strength of itself is not influenced again on the basis of function, but also traction electric machine is more difficult to wound inside by foreign matter, is provided
Safety guarantee.In addition also prevent lubricant grease from entering inside traction electric machine using labyrinth ring, to ensureing that operation is advantageous.With this
Meanwhile compact and succinct structure, for the manufacture difficulty of reduction compact traction electric machine end cap, simplifying mould structure also has
Place, this makes the workmanship of compact traction electric machine end cap more preferable, reduces manufacturing cost to a certain extent.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram for the compact traction electric machine end cap that the embodiments of the present invention provide；
Fig. 2 is the sectional view in the directions A-A of Fig. 1；
Fig. 3 is the sectional view in the directions B-B of Fig. 1；
Fig. 4 is the sectional view in the directions C-C of Fig. 1；
Fig. 5 is the schematic diagram of compact traction electric machine end cap and traction electric machine installation cooperation.
Icon：100- compact traction electric machine end caps；10- motor axis holes；20- labyrinth rings；30- bearing chambers；40- divulges information
Hole；41- inner layers；Ring layer among 42-；43- outer layers；51- fills duct；53- leaks duct；60- bearing temperature detection holes；
71- installs seam allowance；72- mounting portions；80- arc-shaped profiles；The 90- plane of references；101- stator winding ends；102- engine bases.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term "inner", "outside"
For be based on the orientation or positional relationship shown in the drawings or the utility model product using when the orientation or position usually put
Relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.This
Outside, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in utility model.
Embodiment
Fig. 1 to Fig. 5 is please referred to, a kind of compact traction electric machine end cap 100 is present embodiments provided, including：
Motor axis hole 10；
Labyrinth ring 20, with the close stator winding end after traction electric machine of compact traction electric machine end cap 100
The side in portion 101 is inside, and the side opposite with inside is outside, and labyrinth ring 20 is set to motor axis hole 10 and and motor axis hole
10 is coaxial, and labyrinth ring 20 is located inside；
Bearing chamber 30, the side in close outside of the bearing chamber 30 close to motor axis hole 10 and positioned at labyrinth ring 20, labyrinth ring
20 for preventing grease from flowing to inside from bearing chamber 30；
The quantity of ventilation hole 40, ventilation hole 40 is multiple, and multiple ventilation holes 40 constitute multiple ventilation ring layers, multiple draught rings
Layer and motor axis hole 10 are coaxially disposed, ratio and the adjacent ventilation of the circular arc where each ventilation hole 40 of every layer of ventilation ring layer
The ratio of circular arc where the adjacent ventilation hole 40 of ring layer is roughly equal；
The contour shape phase for the profile and stator winding end 101 that the side positioned inside of multiple ventilation ring layers forms
Seemingly.
Wherein, in illustrating 2-5, inside refers to right side, and outside that is to say left side.
Wherein, the ratio of the circular arc where each ventilation hole 40 of every layer of ventilation ring layer is adjacent with adjacent ventilation ring layer
Ventilation hole 40 where the ratio of circular arc roughly equal refer to：It is general as shown in Figure 1, each ring layer of divulging information shaped like circle,
Single ventilation hole 40 occupies certain arc length in circle, and the ratio for the perimeter that this section of arc length and place are justified is a value, and
Ventilation hole 40 in adjacent ventilation ring layer is equally certain arc length of circle where occupying its own, the week of this arc length and circle
Long ratio is another value, and above-mentioned two values can be completely the same, can also be to have slight difference, as long as substantially
Upper no special large deviation can meet design requirement.
Wherein, the wheel profile for the profile and stator winding end 101 that the side positioned inside of multiple ventilation ring layers forms
Shape is similar refer to inner face the shape being located at ventilation hole 40 it is similar with the end shape of stator winding.It is similar refer to profile with
End shape is proportional, can also be all towards the bending of the same direction and curvature difference very little.Being not required for must be completely the same,
Also basic design requirement can be realized.
Specifically, in the present embodiment, the quantity for ring layer of divulging information is three, and centered on motor axis hole 10, three ventilations
Ring layer is respectively inner layer 41, intermediate ring layer 42 and outer layer 43, with the end positioned at outside of compact traction electric machine end cap 100
Plane where face is the plane of reference 90.Wherein, slightly exceeding the part of the plane of reference 90 can ignore, and the plane of reference 90 is with the overwhelming majority
End face where subject to face.
The profile positioned inside side of inner layer 41 is from close to 10 one end of motor axis hole to close 42 one end of intermediate ring layer
The plane of reference 90 is moved closer to, the profile positioned inside side of intermediate ring layer 42 is from close to one end of inner layer 41 to close outer ring
One end of layer 43 first moves closer to the plane of reference 90 and is gradually distance from the plane of reference 90 again；The profile positioned inside side of outer layer 43 from
Close to one end of intermediate ring layer 42 plane of reference 90 is gradually distance to one end far from intermediate ring layer 42.
More specifically, inner layer 41 positioned at the profile of inside side, the profile positioned inside side of intermediate ring layer 42
With the profile 80 in the arc-shaped of the set of contours positioned inside side of outer layer 43.Wherein arc-shaped profile 80 in outer layer 43 to tight
It gathers the part that the edge of type traction electric machine end cap 100 extends, and designs camber together, be connected with arc-shaped profile 80, with
Preferably it is adapted with the end shape of stator winding.
Arc-shaped profile 80 and the profile of stator winding end 101 are concentric, the radius of curvature and stator of arc-shaped profile 80
The radius of curvature of winding overhang 101 differs 10-20mm.
This is because the end approximation of stator winding is arc-shaped, so referring to approximate concentric with one heart, there is slight difference
The implementation of scheme is not influenced.Design in this way, the inner face and stator for having ensured compact traction electric machine end cap 100 around
Between group end 101 there are normal spacing under the premise of so that compact traction electric machine end cap 100 is whole more to be approached
Engine base 102 is conducive to latch fitting motor axial length in this way.
Specifically, in the present embodiment, ventilation hole 40 is arc-shaped waist hole.Waist hole diameter is with compact traction electric machine end cap
The increase of 100 radius and be gradually reduced.
More careful, the width radial in inner layer 41 of the ventilation hole 40 of inner layer 41 is 18-22mm.
The width radial in intermediate ring layer 42 of the ventilation hole 40 of intermediate ring layer 42 is 16-20mm.
The width radial in outer layer 43 of the ventilation hole 40 of outer layer 43 is 14-18mm.
By by the Proportionality design of 40 place circular arc of ventilation hole at roughly equal, in conjunction with the ventilation hole 40 of each ventilation ring layer
Size design so that the draught area of compact traction electric machine end cap 100 is increased, and does not influence end cap mechanical strength,
Compared with prior art, the size of 40 single hole of ventilation hole is reduced, and be more advantageous to prevents inside motor by extraneous different in this way
The shock of object.In order to further ensure that mechanical strength, compact traction electric machine end cap 100 use high-strength aluminum alloy material system
Make.
Specifically, compact traction electric machine end cap 100 also has filling duct 51 and leakage duct 53；
Filling duct 51 is connected to bearing chamber 30, and the filler in filling duct 51 is located at outside, fills duct 51 from filling
Mouth extends to side wall and the bottom wall intersection of bearing chamber 30；
Leakage duct 53 is connected to bearing chamber 30, and the leakage hole in leakage duct 53 is located at outside, leaks duct 53 from leakage
Mouth extends to the side wall of bearing chamber 30.
Specifically, the filler in filling duct 51 is located at the outside of compact traction electric machine end cap 100,51 edge of duct is filled
The side wall setting for compact traction electric machine end cap 100, bearing chamber 30 is extended to from filler.Grease reaches when in order to make filling
Efficiency more preferably, such as figure of filling duct 51 of the present embodiment is typically provided to straightway shape.
Further, filling duct 51 extends to side wall and the bottom wall intersection of bearing chamber 30 from filler.In this way may be used
Lubricant grease is directly perfused close to the place of traction electric machine to be mounted in bearing chamber 30.Because lubricant grease is from close
The side of traction electric machine to be mounted is progressed into toward outside in bearing chamber 30, and the effect of lubrication can be more comprehensively so that
Bearing can obtain the moist of lubricant grease as much as possible, ensure lubricant effect.
Specifically, the leakage hole in leakage duct 53 is located at the outside of compact traction electric machine end cap 100,53 edge of duct is leaked
The side wall setting for compact traction electric machine end cap 100, the inner wall of bearing chamber 30 is extended to from leakage hole.More particularly, axis
The inner wall for holding room 30 refers to the wall for the part for installing bearing cap.
The design in above-mentioned filling duct 51 is combined in this way so that lubricant grease lubricates discharge energy from lubrication is started to completion
Enough fully infiltration bearings, greatly improve lubricant effect.
In the present embodiment, the shape of the leakage hole in leakage duct 53 is square.Other than rectangular, other circles,
The shape of ellipse and profiled holes is all can be as the shape of leakage hole, and the rectangular leakage hole of the present embodiment is more convenient to be added
Work reduces difficulty when casting compact traction electric machine end cap 100, improves the quality of casting, this is for the control of cost
Also relatively more beneficial.
In order to ensure the effect of discharge waste oil, in the present embodiment, the width in duct 53 is leaked, from positioned at 30 side of bearing chamber
One end of wall gradually increases towards one end of leakage hole, when compact traction electric machine end cap 100 is mounted on traction electric machine, leakage
The position in duct 53 is located at the lower section of motor axis hole 10.
Further, the bore of the leakage hole in leakage duct 53 is more than the bore of the filler in filling duct 51.It is such
A series of designs, can make lubricant grease after filling, more have the tendency that the leakage hole towards leak road 53 moves.Because
Filler is smaller, and leakage hole is larger, after lubricant grease is under pressure at filler end, can be easier to be pressed towards pressure release
End, release end is wider, and pressure can be made to be easier to discharge.
In addition the position in leakage duct 53 itself is below motor axis hole 10, waste oil also more has under the driving of its own gravity
The trend moved towards leakage hole.
So waste oil under such design, can preferably drain outward, avoids resting at bearing for a long time, prevent
The lubrication of bearing is impacted, also reduces waste oil to a certain extent to the possibility moved inside traction electric machine.
The oil circuit that lubricant grease is built on compact traction electric machine end cap 100, has benefited from the design of oil circuit, lubricant grease
Lubrication it is more comprehensive, and while filling will not reversely overflow.In use for some time, discarded grease again can be voluntarily
It is leaked out from leakage duct 53, and without specially doing excessive cleaning to waste oil, using effect is good.
It is worth noting that, general bearing, after lubrication, the waste oil of generation is possible to from motor axis hole 10 to enter
To inside traction electric machine, this will produce very undesirable influence for the device inside traction electric machine, especially in train
When operation, if traction electric machine therefore and failure, be breakneck thing.Therefore, the present embodiment is arranged in the other side of oil circuit
Labyrinth ring 20 by the sealing effect of labyrinth ring 20 can effectively prevent discarded grease to enter the inside of traction electric machine.
Specifically, also there is compact traction electric machine end cap 100 bearing temperature detection hole 60, bearing temperature detection hole 60 to use
In mounting temperature sensor with monitoring bearing temperature.When temperature sensor detects that bearing temperature is normal, traction electric machine can be with
Normal operation；When temperature sensor detects that bearing temperature is higher, traction electric machine can select downrating.
Others, compact traction electric machine end cap 100 also have for the installation seam allowance 71 with traction electric machine location and installation.
Location and installation can be preferably carried out on the engine base of motor 102 in this way.
In addition, compact traction electric machine end cap 100 includes mounting portion 72, the quantity of mounting portion 72 is four, four installations
Portion 72 is located at the edge of compact traction electric machine end cap 100.Mounting portion 72 has screw hole, can be led with bolt to complete compact
Draw the connection of electric motor end cap 100 and traction motor 102.It can assemble at one to install seam allowance 71 and mounting portion 72, this
Sample makes the connection between compact traction electric machine end cap 100 and the engine base 102 of traction electric machine more accurate and reliable.
The principle of the present embodiment is：
Whole compact-sized and succinct of compact traction electric machine end cap 100, has for reducing manufacture difficulty very much in this way
Place, the material integrated structure design of high-strength aluminum alloy so that the structural strength of compact traction electric machine end cap 100 also has guarantor
Hinder, for express locomotive traction electric machine big for power, small, use intensity is secure, can be competent at.
Specifically, the distribution mode of ventilation hole 40 and the size design of single ventilation hole 40 so that ventilation hole 40 itself
It is not easy to be penetrated by foreign matter, reduces the possibility wounded inside traction electric machine, while also increasing draught area, improve logical
Air quantity so that the heat dissipation inside traction electric machine is also more efficient, it is ensured that traction electric machine energy continuous service.It is more applicable for power
Greatly, small express locomotive traction electric machine.
Particularly, by the profile design of the inner face at ventilation hole 40 at similar with the shape of stator winding end 101, this
Sample is conducive to reduce the axial length of traction electric machine, this is undoubtedly highly beneficial for the extremely limited traction electric machine of installation space
's.For traction electric machine, no small promotion can be brought, more possibilities are provided for the design of traction electric machine.
By using such compact traction electric machine end cap 100, the size of traction electric machine reduces, for express locomotive
Speech also advantageously, for example can install other components beneficial for locomotive operation, assembly in the installation space being available
Or device etc..For another example, other objects are not installed, by reducing the dimension and weight of traction electric machine, reduce the weight of locomotive
Amount, for locomotive operation and fabulous.So compact traction electric machine end cap 100, be particularly well suited for use in require power it is big,
On small express locomotive traction electric machine.
In addition, ventilation hole 40 is near the end of stator winding again, it is more advantageous to the Wen Sheng for reducing stator winding.
In addition, combining filling duct 51 and leaking the lubricant passage way of duct 53 and the composition of bearing chamber 30, for motor shaft
The lubricant effect and discharge waste oil effect held is all secure, on the basis of such oil circuit, and has used labyrinth ring 20 to prevent
Only the waste grease outside traction electric machine enters, it is ensured that lubricant grease acts only on bearing, does not influence other component.
In conclusion the compact traction electric machine end cap 100 of the utility model, compact overall structure and succinct, heat dissipation effect
Fruit is good, for the lubricant effect of bearing, also helps the axial length of reduction traction electric machine, reduces traction electric machine indirectly
Whole weight and volume.It realizes on the basis of above-mentioned function and does not influence the mechanical strength of itself, but also traction electric machine is more
It is not easy to wound inside by foreign matter, safety guarantee is provided.In addition also prevent lubricant grease from entering traction using labyrinth ring 20
Inside motor, to ensureing that operation is advantageous.At the same time, compact and succinct structure is for reducing compact traction electric machine end cap
100 manufacture difficulty simplifies mould structure and is also beneficial to, this makes the workmanship of compact traction electric machine end cap 100 more preferable,
Manufacturing cost is reduced to a certain extent.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of compact traction electric machine end cap, which is characterized in that including：
Motor axis hole；
Labyrinth ring, with the one of the close stator winding end after traction electric machine of the compact traction electric machine end cap
Side is inside, the side opposite with the inside be outside, the labyrinth ring be set to the motor axis hole and with the motor
Axis hole is coaxial, and the labyrinth ring is located at the inside；
Bearing chamber, side close to the outside of the bearing chamber close to the motor axis hole and positioned at the labyrinth ring, institute
Labyrinth ring is stated for preventing grease from flowing to the inside from the bearing chamber；
The quantity of ventilation hole, the ventilation hole is multiple, and multiple ventilation holes constitute multiple ventilation ring layers, multiple ventilations
Ring layer and motor axis hole coaxial arrangement, the ratio of the circular arc where every layer of described ventilation each of ring layer ventilation hole with
The ratio of circular arc where the adjacent ventilation hole of the adjacent ventilation ring layer is roughly equal；
The contour shape phase for the profile and stator winding end that the side positioned at the inside of multiple ventilation ring layers forms
Seemingly.
2. compact traction electric machine end cap according to claim 1, which is characterized in that the quantity of the ventilation ring layer is three
A, centered on the motor axis hole, three ventilation ring layers are respectively inner layer, intermediate ring layer and outer layer, with described
The end face place plane positioned at the outside of compact traction electric machine end cap is the plane of reference；
The profile positioned at the inside side of the inner layer is from close to described motor axis hole one end to the close mesosphere
Layer one end moves closer to the plane of reference, and the profile positioned at the inside side of the intermediate ring layer is from close to the inner layer
One end first move closer to the plane of reference to one end close to the outer layer and be gradually distance from the plane of reference again；The outer ring
The profile positioned at the inside side of layer from close to one end of the intermediate ring layer to one end of the separate intermediate ring layer by
Gradually far from the plane of reference.
3. compact traction electric machine end cap according to claim 2, which is characterized in that the inner layer is located in described
The profile of side side, the intermediate ring layer positioned at the inside side profile and the outer layer be located at the inside one
The set of contours profile in the arc-shaped of side.
4. compact traction electric machine end cap according to claim 3, which is characterized in that the arc-shaped profile and stator around
The profile of group end is concentric, and the radius of curvature of the arc-shaped profile differs 10-20mm with the radius of curvature of stator winding end.
5. compact traction electric machine end cap according to claim 2, which is characterized in that the ventilation hole is arc-shaped waist
Hole.
6. compact traction electric machine end cap according to claim 5, which is characterized in that the ventilation hole of the inner layer
The width in inner layer radial direction be 18-22mm.
7. compact traction electric machine end cap according to claim 5, which is characterized in that the ventilation of the intermediate ring layer
The width in the intermediate ring layer radial direction in hole is 16-20mm.
8. compact traction electric machine end cap according to claim 5, which is characterized in that the ventilation hole of the outer layer
The width in outer layer radial direction be 14-18mm.
9. compact traction electric machine end cap according to claim 1, which is characterized in that the compact traction electric machine end cap
Also there is filling duct and leakage duct；
The filling duct is connected to the bearing chamber, and the filler in the filling duct is located at the outside, the filler port
Road extends to side wall and the bottom wall intersection of the bearing chamber from filler；
The leakage duct is connected to the bearing chamber, and the leakage hole in the leakage duct is located at the outside, the leak
Road extends to the inner wall of the bearing chamber from leakage hole.
10. compact traction electric machine end cap according to claim 1, which is characterized in that compact traction electric machine end
Lid also has bearing temperature detection hole, and the bearing temperature detection hole is for mounting temperature sensor with monitoring bearing temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820375194.7U CN207884392U (en) | 2018-03-19 | 2018-03-19 | Compact traction electric machine end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820375194.7U CN207884392U (en) | 2018-03-19 | 2018-03-19 | Compact traction electric machine end cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207884392U true CN207884392U (en) | 2018-09-18 |
Family
ID=63496307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820375194.7U Withdrawn - After Issue CN207884392U (en) | 2018-03-19 | 2018-03-19 | Compact traction electric machine end cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207884392U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108134470A (en) * | 2018-03-19 | 2018-06-08 | 新誉轨道交通科技有限公司 | Compact traction electric machine end cap |
-
2018
- 2018-03-19 CN CN201820375194.7U patent/CN207884392U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108134470A (en) * | 2018-03-19 | 2018-06-08 | 新誉轨道交通科技有限公司 | Compact traction electric machine end cap |
| CN108134470B (en) * | 2018-03-19 | 2023-12-26 | 新誉轨道交通科技有限公司 | Compact traction motor end cover |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180918 Effective date of abandoning: 20231226 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180918 Effective date of abandoning: 20231226 |