CN208754103U - A kind of high and cold high-speed rail electric motor end cap - Google Patents
A kind of high and cold high-speed rail electric motor end cap Download PDFInfo
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- CN208754103U CN208754103U CN201821747510.5U CN201821747510U CN208754103U CN 208754103 U CN208754103 U CN 208754103U CN 201821747510 U CN201821747510 U CN 201821747510U CN 208754103 U CN208754103 U CN 208754103U
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- deflector
- flow deflector
- end cap
- hole
- bottom plate
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Abstract
The utility model discloses a kind of high and cold high-speed rail electric motor end cap, including lid, the lid includes bottom plate and the wall around bottom plate setting, is equipped with boss in the middle part of the bottom plate, further includes flow deflector and spring leaf；The flow deflector is cyclic annular taper, is radially successively arranged several interior deflector holes of circle distribution and several outer deflector holes of circle distribution from inside to outside on the flow deflector；The water conservancy diversion direction of the interior deflector hole and outer deflector hole is to be obliquely installed relative to flow deflector surface normal direction, and the two inclined direction is opposite.Two groups of deflector hole inclined directions in the utility model keep the Temperature Distribution at end cap more uniform on the contrary, to form the contrary revolution air-flow of twice in the region between flow deflector and end cap bottom plate.
Description
Technical field
The utility model relates to a kind of electric motor end cap, especially a kind of high and cold high-speed rail electric motor end cap.
Background technique
The traction electric machine of high-speed rail train needs long-term high speed operation, and by bear biggish punching when rail gap and track switch
Vibration is hit, therefore it is required that motor has good ventilation and heat condition.
The mounting condition of high-speed rail traction electric machine is complicated, arround be disposed with hydraulic device, strong and weak electric installation etc., electric machine casing
Temperature is not only related with the temperature of internal stator rotor, but also is influenced very greatly by the external world, especially under psychro-environment, motor casing
Body, end cap temperature distributing disproportionation situation clearly.The bearing of motor shaft is used to support due to being equipped on end cap, temperature is not
It will lead to bearing bore deformation, cause the problems such as motor operation stability is poor, noise is big.
It, can only be by the heat dissipation in the middle part of machine cavity to tail portion although the tail end of motor shaft is equipped with radiator fan
At end cap, it can not really change the profiling temperatures of end cap.
Utility model content
The utility model proposes a kind of high and cold high-speed rail electric motor end cap, the technical problem to be solved is that: solve electricity
The problem of generator terminal lid temperature unevenness.
The technical solution of the utility model is as follows:
A kind of high and cold high-speed rail electric motor end cap, including lid, the lid include bottom plate and standing around bottom plate setting
Wall, the bottom plate middle part are equipped with boss, the bearing hole for installing bearing are offered on the boss, further includes flow deflector and bullet
Reed；
The flow deflector is cyclic annular taper, is radially successively arranged circle distribution from inside to outside on the flow deflector
Several outer deflector holes of several interior deflector holes and circle distribution；The water conservancy diversion direction of the interior deflector hole and outer deflector hole is opposite
It is obliquely installed in flow deflector surface normal direction, and the two inclined direction is opposite；
The spring leaf is annular；
The card slot of annular is offered on the wall, the outer edge of the flow deflector is installed in the card slot；It is described to lead
Flow, spring leaf and the bearing hole are coaxially disposed, spring leaf one end is in contact with boss top surface, the other end and flow deflector it is small
Diameter end face is in contact.
The interior deflector hole is along the circumferential direction divided into M group as a further improvement of the utility model, adjacent in every group
Interior deflector hole is unequal relative to the tilt angle in flow deflector surface normal direction；
The outer deflector hole is along the circumferential direction divided into N group, and adjacent outer deflector hole is relative to flow deflector surface method in every group
Tilt angle to direction is unequal.
M and N is positive integer.
Lacking for the perforation along bus setting is also provided on the flow deflector as a further improvement of the utility model,
Mouthful.
Compared with the existing technology, the utility model has following good effect: (1) flow deflector, water conservancy diversion are installed in end cap
Piece has inside and outside two groups of deflector holes being obliquely installed, and two groups of deflector hole inclined directions are on the contrary, in flow deflector and end cap bottom plate
Between region in form the contrary revolution air-flow of twice, keep the Temperature Distribution at end cap more uniform；(2) flow deflector has
It is jagged, it can be quickly installed in end cap using spring leaf, structure is simple, convenient for installation and maintenance；(3) flow deflector is taper,
Axial compressive force can be preferably born, its is avoided vibrated to fall off；(4) the inconsistent technical side of the inclined direction in adjacent guide hole
Case has further speeded up the heat exchange of air-flow.
Detailed description of the invention
Fig. 1 is the bottom substance schematic diagram of end cap；
Fig. 2 is the schematic cross-sectional view of end cap；
Fig. 3 is the part A partial schematic diagram of Fig. 2；
Fig. 4 is the B of Fig. 3 to schematic diagram；
Fig. 5 is the stereoscopic schematic diagram of flow deflector.
Specific embodiment
The following detailed description of the technical solution of the utility model includes:
Such as Fig. 1 and 2, a kind of electric motor end cap, the lid 1 including casting, the lid 1 includes bottom plate and sets around bottom plate
The wall set, the bottom plate middle part are equipped with boss 1-2, the bearing hole for installing bearing are offered on the boss 1-2.Motor
The middle part of axis is equipped with radiator fan by tail end, this is conventional design, for dredging the heat of stator rotor to end cap.
Lid 1 uses low-temperature resistant and shock resistant ductile cast iron material, and by the inoculated technology of design science, casting technique,
Solve the problems, such as interiors of products shrinkage porosite, make product in -40 DEG C--60 DEG C ballistic work >=12J of low temperature, tensile strength >=
400Mpa, product comprehensive mechanical property reach domestically leading level；By designing reasonable processing technology, product processing essence ensure that
Degree reaches IT6 grades, meets the assembly demand of high-speed rail.
Such as Fig. 2, end cap further includes flow deflector 2 and spring leaf 3；
Such as Fig. 5, the flow deflector 2 is cyclic annular taper, is radially successively arranged circle from inside to outside on the flow deflector 2
Several interior deflector hole 2-1 of week distribution and several outer deflector hole 2-2 of circle distribution；The interior deflector hole 2-1 and outer deflector hole
The water conservancy diversion direction of 2-2 be obliquely installed relative to 2 surface normal direction of flow deflector, and the two inclined direction on the contrary, to
The contrary revolution air-flow of twice is formed in region between flow deflector 2 and end cap bottom plate, makes Temperature Distribution at end cap more
Add uniformly.
The spring leaf 3 is also annular；The centre bore of flow deflector 2 and spring leaf 3 is passed through for motor shaft.
Such as Fig. 2, the card slot of annular is offered on the wall, the outer edge of the flow deflector 2 is installed in the card slot；
The flow deflector 2, spring leaf 3 and the bearing hole are coaxially disposed, and 3 one end of spring leaf is in contact with the top surface boss 1-2, the other end
It is in contact with the path end face of flow deflector 2.
Further, it in order to facilitate the installation of flow deflector 2, such as Fig. 5, is also provided on the flow deflector 2 and is arranged along bus
The notch 2-3 of perforation facilitate installation with certain deformation space.
In order to accelerate the heat of air-flow to exchange, it is different that adjacent deflector hole tilt angle can also be set: in described
Deflector hole 2-1 is along the circumferential direction divided into M group, and adjacent interior deflector hole 2-1 is relative to 2 surface method of flow deflector in such as 10 groups, every group
Tilt angle to direction is unequal, preferably selects between 15 to 25 degree.10 groups of deflector hole circulation circumference settings, each deflector hole
Angle be along the circumferential direction in circular wave.
Similarly, the outer deflector hole 2-2 be along the circumferential direction divided into outer deflector hole 2-2 adjacent in 10 groups, every group relative to
The tilt angle in 2 surface normal direction of flow deflector is unequal.
As above design, the air-flow that adjacent deflector hole can be made to blow out collide with each other, accelerated heat exchange.
Such as Fig. 2, the annular region on the bottom plate between boss 1-2 and the wall is also provided with several circumference point
The heat release hole 1-1 of cloth；
End cap further includes seal assembly 4, and in the present embodiment, seal assembly 4 is located at the lower section of flow deflector 2.
Such as Fig. 3, annular groove is offered on the wall medial surface, the seal assembly 4 includes copper ring 4-1, falope ring 4-
2, rubber ring 4-3 and several groups one-to-one copper sheet 4-4 and diaphragm seal 4-5 flexible.
The copper ring 4-1 outer edge is installed in annular groove, and alcohol, the silicon are filled in the inner cavity the falope ring 4-2
The cross sectional shape of rubber ring 4-2 is the V-arrangement of outward opening side, the inward flange bottom of the top surface the falope ring 4-2 and the copper ring 4-1
It is connected by bonding method, the rubber ring 4-3 cross sectional shape is the V-arrangement of outward opening side, is sleeved on the outer of falope ring 4-2
On side, the two shape matches, and is connected by bonding method.
The diaphragm seal 4-5 is circumference, and cross sectional shape is horizontally disposed U-shaped and opening direction towards in end cap
The heart is connected, the other side with each side corresponding copper sheet 4-4 diaphragm seal 4-5 with the underrun bonding method of falope ring 4-2
It is connected at the top of diaphragm seal 4-5 by bonding method；The bottom of the diaphragm seal 4-5 is covered on the heat release hole 1-1.
It is well known that alcohol has the characteristic of expanded by heating.When temperature is higher, alcohol expands, falope ring 4-2 and copper ring
Larger deformation cannot occur for two sides of 4-1, copper sheet 4-4 fitting, drive rubber ring 4-3 side deformation, rubber ring 4-3 is supportted
It opens, falope ring 4-2 inner section levels off to triangle, thus change angle of the copper sheet 4-4 relative to copper ring 4-1, such as Fig. 3, then
Diaphragm seal 4-5 is rotated counterclockwise, heat release hole 1-1 is opened, improves heat dissipation effect when high temperature；When the temperature is low, silicon
Rubber ring 4-2 restores under the action of rubber ring 4-3 to V-arrangement, and each diaphragm seal 4-5 is rotated backward, and gradually covers heat release hole 1-1, subtracts
Small heat dissipation area, and dust is avoided to enter.
The purpose of diaphragm seal 4-5 split settings is that on the one hand preventing from being wholely set causes damping due to rotation excessive, on the other hand
The higher regional seal piece 4-5 open angle of temperature can be made bigger, play the role of equilibrium temperature profile.
Further, such as Fig. 4, the bottom of the diaphragm seal 4-5 offers several radiating grooves, the radiating groove and the sealing
The heat release hole 1-1 interlaced arrangement that piece 4-5 is covered, so that the two forms the knot of similar labyrinth seal when diaphragm seal 4-5 is opened
Structure can also play the effect of blocks dust impurity while high temperature heat dissipation.
Claims (3)
1. a kind of high and cold high-speed rail electric motor end cap, including lid (1), the lid (1) includes bottom plate and is arranged around bottom plate
Wall, be equipped with boss (1-2) in the middle part of the bottom plate, the bearing hole for installing bearing offered on the boss (1-2),
It is characterized in that: further including flow deflector (2) and spring leaf (3)；
The flow deflector (2) is cyclic annular taper, is radially successively arranged circle distribution from inside to outside on the flow deflector (2)
Several interior deflector holes (2-1) and circle distribution several outer deflector holes (2-2)；The interior deflector hole (2-1) and outer deflector hole
The water conservancy diversion direction of (2-2) is to be obliquely installed relative to flow deflector (2) surface normal direction, and the two inclined direction is opposite；
The spring leaf (3) is annular；
The card slot of annular is offered on the wall, the outer edge of the flow deflector (2) is installed in the card slot；The water conservancy diversion
Piece (2), spring leaf (3) and the bearing hole are coaxially disposed, and spring leaf (3) one end is in contact with the top surface boss (1-2), the other end
It is in contact with the path end face of flow deflector (2).
2. high and cold high-speed rail electric motor end cap as described in claim 1, it is characterised in that: the interior deflector hole (2-1) is circumferentially
Direction is divided into M group, in every group adjacent interior deflector hole (2-1) relative to flow deflector (2) surface normal direction tilt angle not
It is equal；
The outer deflector hole (2-2) is along the circumferential direction divided into N group, and adjacent outer deflector hole (2-2) is relative to flow deflector in every group
(2) tilt angle in surface normal direction is unequal.
3. high and cold high-speed rail electric motor end cap as claimed in claim 1 or 2, it is characterised in that: also opened up on the flow deflector (2)
There is the notch (2-3) of the perforation along bus setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821747510.5U CN208754103U (en) | 2018-10-26 | 2018-10-26 | A kind of high and cold high-speed rail electric motor end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821747510.5U CN208754103U (en) | 2018-10-26 | 2018-10-26 | A kind of high and cold high-speed rail electric motor end cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208754103U true CN208754103U (en) | 2019-04-16 |
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ID=66086077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821747510.5U Active CN208754103U (en) | 2018-10-26 | 2018-10-26 | A kind of high and cold high-speed rail electric motor end cap |
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| Country | Link |
|---|---|
| CN (1) | CN208754103U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069966A (en) * | 2021-11-05 | 2022-02-18 | 立马车业集团有限公司 | Hub motor with heat dissipation device |
-
2018
- 2018-10-26 CN CN201821747510.5U patent/CN208754103U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069966A (en) * | 2021-11-05 | 2022-02-18 | 立马车业集团有限公司 | Hub motor with heat dissipation device |
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