CN206377054U - A kind of rack construction of the double centrifugal impeller blower fans of bullet train - Google Patents
A kind of rack construction of the double centrifugal impeller blower fans of bullet train Download PDFInfo
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- CN206377054U CN206377054U CN201621403921.3U CN201621403921U CN206377054U CN 206377054 U CN206377054 U CN 206377054U CN 201621403921 U CN201621403921 U CN 201621403921U CN 206377054 U CN206377054 U CN 206377054U
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Abstract
The utility model provides a kind of rack construction of the double centrifugal impeller blower fans of bullet train, including central structural element (1) and the fixed housing (2) being enclosed in outside central structural element；Housing (2) includes end box plate (21), top plate (23), top box template (24) and nowel template (25), end box plate, top box template and nowel template include inner plating (7), lamina rara externa (8) and the diaphragm plate (9) being vertically set between inner plating and lamina rara externa, and central structural element also includes the middle part box support beam (14) being positioned and supported within along motor side web height direction between top box template (24) and nowel template (25).The rack construction of the double centrifugal impeller blower fans of bullet train of the present utility model, has been obviously improved the rigidity of blower fan rack construction, can be substantially reduced the vibration of blower fan so that double centrifugal impeller fan vibrations can meet the requirement of practical engineering application.
Description
Technical field
The utility model is related to the rack construction of a kind of pair of centrifugal impeller blower fan, is mainly used in the ventilation of rail high speed train
Cooling system.
Background technology
Influence the factor of fan vibration a lot, wherein the rigidity of blower fan rack construction is not enough the main of influence fan vibration
One of factor.The double centrifugal impeller blower fans of bullet train are due to 2 sleeve impeller structural systems so that blower fan horizontal span is larger,
Therefore it is very high to the rigid requirements of frame.As country improves constantly to energy-saving requirement, track traffic bullet train
Light-weight design requirement is also constantly improved, therefore there has also been strict requirements to the light-weight design of blower fan structure system.
Under conditions of freight weight limit, very big conflict and influence is there is on the structural Rigidity Design of such blower fan at present, in vibration-testing examination
It is difficult to meet the requirement of engineer applied in testing, it is main at present to force dynamically balanced exciting to load by way of on-line dynamic balancing
Reduction (starts the skew that motor after certain time relatively rotates axial line generation, further according to the inclined of motor by testing blower fan
The weight of condition of shifting one's love regulation motor rotational axis line machine frame at two sides), this method takes high and efficiency in the application of batch production
Low, the working strength of workman is high, and in practical engineering application, due to the presence of the factors such as dust stratification, installation, dynamic balancing destruction makes
The exceeded possibility of fan vibration is obtained big, so as to cause reliability of the blower fan in actual application to reduce.
Chinese patent 201520745234.9 discloses a kind of blower fan vibration damping pedestal, for blower fan and the common support of motor
Platform, including the framework being welded by different length channel-section steel assembly and the shock absorber being arranged on below framework, the program are main
By spring cushion vibration damping, the vibration of motor in itself can not be mitigated.It can conversely make blower fan and spring damping installation system solid
There are frequency reduction, the vibration increase of blower fan and motor.
Chinese patent 201120013877.6 is disclosed in a kind of Non-volute centrifugal fan for electric locomotive, the program, wind
Machine cavity body is formed by single plate material splicing group weldering, and rack construction uses traditional design method, and rigidity is relatively low, fan vibration
Greatly, it is difficult to meet the application requirement of Practical Project.
Utility model content
The utility model purpose is the rack construction for providing a kind of double centrifugal impeller blower fans of bullet train, to solve background
The problem of being proposed in technology.
To achieve the above object, the utility model provides a kind of rack construction of the double centrifugal impeller blower fans of bullet train,
Including central structural element 1 and the fixed housing 2 being enclosed in outside central structural element.
The central structural element includes groove profile internal partition and motor coxostermum 11 arranged in parallel and air intake flank
Plate 12, motor coxostermum is vertical with motor output shaft axial line with the plate face of air intake coxostermum, and motor coxostermum is provided with two
Individual motor installing hole 111, air intake coxostermum provided with two air inlets 121, two motor installing holes respectively with two air inlets
Alignd along motor output shaft axial direction, two motors that motor 1 is respectively and fixedly installed to motor coxostermum with motor 24 are pacified
Fill at hole, between motor coxostermum and air intake coxostermum geometrical clamp be provided with the groove profile for separating motor one and motor two every
Plate 13, the output shaft of motor one and motor two pass axially through after motor installing hole is stretched on the inside of motor coxostermum with respectively with wind
Machine impeller 5 is connected, and the air inlet duct 6 of blower fan is fixed on the air inlet of air intake coxostermum.
The housing 2 includes end box plate 21, top plate 23, top box template 24 and nowel template 25, and end box plate is consolidated
Fixed centrally disposed structural member both sides and with motor coxostermum and air intake coxostermum is vertical is connected, during the top plate is fixedly installed on
Hearty cord top, top plate, motor coxostermum, air intake coxostermum, groove profile internal partition and end box plate surround two tops jointly
Being used for of portion's closed bottom opening accommodates the inner chamber 10 of blower fan, the air outlet of blower fan towards at the bottom opening of inner chamber, it is described on
Box plate is located above motor and with being connected at the top of motor side web outside, and the nowel template is located at below motor and and motor
Coxostermum exterior bottom is connected；On the line direction of two motors, the two ends of top box template and nowel template respectively with end
Box plate is connected.
The end box plate, top box template and nowel template are including inner plating 7, lamina rara externa 8 and including being vertically arranged
Diaphragm plate 9 between laminate and lamina rara externa, wherein inner plating are located at inner side and are connected with motor coxostermum, and end box plate
Inner plating is also connected with air intake coxostermum；The central structural element also includes motor side web outside and the internal layer of end box plate
The small stiffener plate 16 being connected between plate.
The housing also includes the frame mounting seat 22 for hoisting frame, the centrally disposed structural member two of frame mounting seat
Side is simultaneously fixedly connected with the lamina rara externa of end box plate.
The central structural element also include being arranged on motor side web outside and positioned between motor one and motor two
Middle part box support beam 14, the length direction of middle part box support beam is positioned and supported within top box along motor side web height direction
Between template 24 and nowel template 25.
The middle part box support beam 14 includes shrouding 141 and the plate face at least two piece big reinforcement vertical with motor coxostermum
Gusset 142, major stiffener plates are connected along motor output shaft axial direction one end is vertical with motor coxostermum respectively, and the other end is equal
Vertical with the shrouding to be connected, big stiffener plate upper end and shrouding upper end and the inner plating of top box template are connected, big stiffener plate
Lower end and shrouding lower end and the inner plating of nowel template are connected.
It is preferred that, the plate face of the groove profile internal partition is located in the middle vertical plane of shrouding.
It is preferred that, the big stiffener plate upper end is wide, lower end is narrow, and the connected shrouding vertical with big stiffener plate is relative
Motor coxostermum is tilted, and can effectively strengthen blower fan longitudinal rigidity.The inner plating plate face of the top box template is with respect to its lamina rara externa plate
Tilt downwards, one end that wherein inner plating is connected with motor coxostermum is low side, can effectively strengthen blower fan lateral stiffness.With it is upper
The connected big stiffener plate upper end of box inner cord plate is also configured as the hypotenuse matched with the inner plating plate face of top box template.
Central structural element both sides are each provided with setting in one or more frame mounting seats 22, each frame mounting seat
Having in one or more installation positions 221 for being used to connect outside support, each frame mounting seat has an installation position and lower box
Plate aligns along motor output shaft radial direction.
Further, it is equipped with spring cushion 222 on each described installation position.
Further, the motor coxostermum upper end is provided with the bending edges 1 to motor web outside bending, the top
Plate is connected with bending edges one；The air intake coxostermum upper end is provided with the bending edges 2 122 to inlet side web outside bending, described
Top plate is connected with bending edges two.
Further, the air intake coxostermum lower end is provided with the L-type bending edges 3 123 to inlet side web outside bending, L
Type bending edges three are made up of for 90 degree the bending twice of air intake coxostermum lower end, the top plate close to one end of air intake coxostermum be provided with to
The bending edges 4 231 of lower bending, it is vertically connected by two air inlets that the central structural element also includes inlet side web outside
The L-type external partition 15 separated, L-type external partition upper end is connected with top plate, and L-type external partition lower end is connected with L-type bending edges three.
Further, the top box template is made up of top plate extension bending, and wherein the lamina rara externa of top box template is by pushing up
Plate plate face extends towards motor side web outside direction to be constituted, the top plate end bending twice of the inner plating of top box template after extending
Constitute.
Further, the nowel template is made up of motor coxostermum lower end to the multiple bending of motor web outside, wherein
The lamina rara externa of nowel template is constituted for 90 degree from motor coxostermum lower end to the bending of motor web outside, the inner plating of nowel template by
90 degree of compositions of lamina rara externa bending twice.
Beneficial effect：The rack construction of the double centrifugal impeller blower fans of bullet train of the present utility model, passes through box-structure
Housing, top box template, nowel template and middle part box support beam have been obviously improved the rigidity of blower fan rack construction so that blower fan
Dynamic stiffness is more than its working frequency, can be substantially reduced the vibration of blower fan so that double centrifugal impeller fan vibrations be able to can expire
Foot《JB/T8689-2014 ventilation blower vibration-testing standards》Practical engineering application requirement.In addition, the machine in the utility model
Double centrifugal impeller blower fans of frame structure setting or so distribution so that the distribution loaded of frame the right and left institute is more balanced, to enhancing
The rigidity and vibration resistance of frame, also play larger effect.
In addition to objects, features and advantages described above, the utility model also has other purposes, feature and excellent
Point.Below with reference to figure, the utility model is described in further detail.
Brief description of the drawings
The accompanying drawing for constituting the part of the application is used for providing further understanding to of the present utility model, of the present utility model
Schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model.In accompanying drawing
In：
Fig. 1 is double centrifugal impeller blower fan overall installation upward views of the utility model preferred embodiment；
Fig. 2 is the blower fan frame front view of the utility model preferred embodiment；
Fig. 3 is the blower fan frame left view of the utility model preferred embodiment；
Fig. 4 is the blower fan frame 3-D view of the utility model preferred embodiment；
Fig. 5 is the blower fan frame three dimensional sectional view of the utility model preferred embodiment.
In figure：1- central structural elements, 10- inner chambers, 11- motor coxostermums, 111- motor installing holes, 112- bending edges one,
Case in the middle part of 12- air intake coxostermums, 121- air inlets, 122- bending edges two, 123-L types bending edges three, 13- groove profile internal partitions, 14-
Type support beam, 141- shroudings, the big stiffener plates of 142-, 15-L type external partitions, the small stiffener plates of 16-, 17- web plates, 2- housings,
21- ends box plate, 22- frame mounting seats, 221- installation positions, 222- spring cushions, 23- top plates, 231- bending edges four,
24- top box templates, 25- nowel templates, 3- motors one, 4- motors two, 5- draught fan impellers, 6- air inlet ducts, 7- inner platings, 8- outer layers
Plate, 9- diaphragm plates.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, but the utility model can be according to power
Profit requires to limit and the multitude of different ways of covering is implemented.
Referring to a kind of rack construction of the double centrifugal impeller blower fans of Fig. 1~Fig. 5 bullet train, including central structural element 1 with
The fixed housing 2 being enclosed in outside central structural element；
The central structural element includes groove profile internal partition and motor coxostermum 11 arranged in parallel and air intake flank
Plate 12, motor coxostermum is vertical with motor output shaft axial line with the plate face of air intake coxostermum, is symmetrically set on motor coxostermum
Have and two air inlets 121 are arranged with two motor installing holes 111, air intake coxostermum, two motor installing holes are respectively with two
Individual air inlet aligns along motor output shaft axial direction, and motor 1 is respectively and fixedly installed to the two of motor coxostermum with motor 24
Described in geometrical clamp is provided with and separates motor one and motor two at individual motor installing hole, between motor coxostermum and air intake coxostermum
In groove profile internal partition 13, and the plate face and motor output shaft axis parallel of groove profile internal partition, the present embodiment, groove profile internal partition position
In in the axial symmetry plane of motor one and motor two, the output shaft of motor one and motor two passes axially through motor installing hole and stretched to
With being connected respectively with draught fan impeller 5 after on the inside of motor coxostermum, the air inlet duct 6 of blower fan is fixed on the air inlet of air intake coxostermum
Place；
The housing 2 includes end box plate 21, top plate 23, top box template 24 and nowel template 25, and end box plate is consolidated
The fixed centrally disposed structural member left and right sides and with motor coxostermum and air intake coxostermum is vertical is connected, the top plate is fixedly installed
At the top of central structural element, what top plate, motor coxostermum, air intake coxostermum, groove profile internal partition and end box plate were surrounded jointly
At the inner chamber 10 for being used to accommodate blower fan of two top seal bottom openings, the bottom opening of the air outlet alignment inner chamber of blower fan,
The top box template is located above motor and with being connected at the top of motor side web outside, the nowel template is located at below motor simultaneously
It is connected with motor side web outside bottom；On the line direction of two motors, i.e., along machine shaft radial direction, top box template
Two ends with nowel template along machine shaft radial direction are connected with end box plate respectively；
The end box plate, top box template and nowel template are including inner plating 7, lamina rara externa 8 and including being vertically arranged
Diaphragm plate 9 between laminate and lamina rara externa, wherein lamina rara externa are located at outside, and inner plating is located at inner side and solid with motor coxostermum
Connect, and the inner plating of end box plate is also connected with air intake coxostermum；The central structural element also includes, motor side web outside
The small stiffener plate 16 being connected between the inner plating of end box plate；End box plate, top box template, nowel template are in motor
The carriage with double-layer plate face of frame integral rigidity can be increased by surrounding one on the outside of coxostermum；Carriage is total to central structural element
Support and damping effect are played with to blower fan；
The housing also includes the frame mounting seat 22 for hoisting frame, the centrally disposed structural member two of frame mounting seat
Side is simultaneously fixedly connected with the lamina rara externa of end box plate；
The central structural element also include being arranged on motor side web outside and positioned between motor one and motor two
Middle part box support beam 14, the length direction of middle part box support beam is positioned and supported within top box along motor side web height direction
Between template 24 and nowel template 25.
The middle part box support beam 14 includes shrouding 141 and the plate face at least two piece big reinforcement vertical with motor coxostermum
Gusset 142, major stiffener plates are connected along motor output shaft axial direction one end is vertical with motor coxostermum respectively, and the other end is equal
Vertical with the shrouding to be connected, big stiffener plate upper end and shrouding upper end and the inner plating of top box template are connected, big stiffener plate
Lower end and shrouding lower end and the inner plating of nowel template are connected.
In the present embodiment, the plate face of groove profile internal partition is located in the middle vertical plane of shrouding.
In the present embodiment, big stiffener plate upper end is wide, lower end is narrow, and the connected shrouding vertical with big stiffener plate is relative
Motor coxostermum has inclination angle, and the inner plating plate face of the top box template is tilted down with respect to its lamina rara externa plate face, wherein internal layer
One end that plate and motor coxostermum are connected is low side, the big stiffener plate upper end being connected with top box template inner plating be also configured as with
The hypotenuse of the inner plating plate face matching of top box template.
In the present embodiment, central structural element both sides are provided with the two frame mounting seats 22 in left and right, each frame mounting seat altogether
On be provided with two installation positions 221 for connecting outside support, each frame mounting seat and have an installation position and lower box
Plate is alignd along motor output shaft radial direction, and another installation position is alignd with air intake coxostermum along motor output shaft radial direction.
In the present embodiment, spring cushion 222 is equipped with each described installation position.
The motor coxostermum upper end be provided with to motor web outside bending bending edges 1, the top board undersurface with
The laminating of the top surface of bending edges one is connected；The air intake coxostermum upper end is provided with the bending edges 2 122 to inlet side web outside bending,
The top plate is connected with bending edges two.
The air intake coxostermum lower end is provided with the L-type bending edges 3 123 to inlet side web outside bending, L-type bending edges
Three by the bending twice of air intake coxostermum lower end 90 degree constitute, the top plate is close to one end of air intake coxostermum provided with downward bending
Bending edges 4 231, the central structural element also includes the L-type for separating two air inlets that inlet side web outside is vertically connected
External partition 15, L-type external partition upper end is connected with top plate, and L-type external partition lower end is connected with L-type bending edges three.
In the present embodiment, top box template is made up of top plate extension bending, and wherein the lamina rara externa of top box template is by top plate
Plate face extends towards motor side web outside direction to be constituted, the top plate end of the inner plating of top box template after extending bending structure twice
Into.
In the present embodiment, nowel template is made up of motor coxostermum lower end to the multiple bending of motor web outside, wherein under
The lamina rara externa of box plate is constituted for 90 degree from motor coxostermum lower end to the bending of motor web outside, and the inner plating of nowel template is by outer
90 degree of compositions of laminate bending twice.
Being provided with the present embodiment, at the bottom opening of inner chamber 10 is used for dust-proof web plate 17, mainly prevents little particle from consolidating
Body sand and dust etc. enter blower interior, so as to improve the life-span of blower fan.
In the present embodiment, connected by the way of welding between two plates, top plate thickness of slab is 3mm, each inner plating plate
Thickness is 2mm, and lamina rara externa thickness of slab is 4mm, and diaphragm plate thickness of slab is 2mm, and motor coxostermum thickness of slab is 6mm, and air intake coxostermum thickness of slab is
4mm, the thickness of slab of groove profile internal partition is 4mm, and the thickness of slab of L-type external partition is 4mm；Whole chi of the frame along machine shaft axial direction
Very little is 767mm, is 1960mm along the size of machine shaft radial direction.
After the completion of the welding of frame spelling, motor and blower fan are mounted respectively to motor installing hole and air inlet, and lift extremely
Testboard, starts motor and is tested, the vibration velocity after motor rotation certain time at testing of electric motors bearing mounting base, according to
Three directions (i.e. near motor coxostermum) at standard JB/T8689-2014 requirement, the motor bearings mounting seat of the present embodiment
The vibration velocity of (laterally, vertical, axial direction) is respectively less than 4.6mm/s.
The utility model is separately provided with comparative example one, comparative example two, comparative example three, comparative example four and right for blower fan frame
Ratio five, the structure of one~comparative example of comparative example five and the architectural difference of the present embodiment are as shown in table 1, with identical blower fan and electricity
Machine is tested, and test condition is also identical with the present embodiment, one~comparative example of comparative example five and the technique effect of the present embodiment
Contrast is as shown in table 1.
Table 1
The transverse direction vibrated in table 1 refers to the left and right directions in Fig. 2, vertically refers to the above-below direction in Fig. 2, axially refers in Fig. 2
In referring to or refer to outer direction, as it can be seen from table 1 the vibration velocity in three directions of blower fan of the present embodiment be below comparative example one~
The vibration velocity in three directions is respectively less than (i.e. at motor coxostermum) at comparative example five, the motor bearings mounting seat of the present embodiment
The requirement of 4.6mm/s required by JB/T8689-2014；And the blower fan natural frequency ratio one~comparative example of comparative example of the present embodiment
Five improve 8%~22%, rigidly greatly improve, so as to substantially increase blower fan and the resistance to shock of frame.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. the rack construction of the double centrifugal impeller blower fans of a kind of bullet train, it is characterised in that including central structural element (1) with fixing
It is enclosed in the housing (2) outside central structural element；
The central structural element includes groove profile internal partition (13) and motor coxostermum (11) arranged in parallel and inlet side
Web (12), motor coxostermum is vertical with motor output shaft axial line with the plate face of air intake coxostermum, is set on motor coxostermum
There are two motor installing holes (111), air intake coxostermum is provided with two air inlets (121), and two motor installing holes are respectively with two
Individual air inlet aligns along motor output shaft axial direction, and motor one (3) is respectively and fixedly installed to motor coxostermum with motor two (4)
Two motor installing holes at, geometrical clamp is provided with separate motor one and motor two between motor coxostermum and air intake coxostermum
The output shaft of the groove profile internal partition (13), motor one and motor two passes axially through motor installing hole and stretched in motor coxostermum
It is connected behind side with respectively with draught fan impeller (5), the air inlet duct (6) of blower fan is fixed on the air inlet of air intake coxostermum；
The housing (2) includes end box plate (21), top plate (23), top box template (24) and nowel template (25), end case
Template be fixedly installed on central structural element both sides and with motor coxostermum and air intake coxostermum is vertical is connected, the top plate is fixed and set
Put at the top of central structural element, top plate, motor coxostermum, air intake coxostermum, groove profile internal partition and end box plate are surrounded jointly
The inner chamber (10) for being used to accommodate blower fan of two top seal bottom openings, the bottom opening of the air outlet of blower fan towards inner chamber
Place, the top box template is located above motor and with being connected at the top of motor side web outside, the nowel template is located under motor
Fang Bingyu motor side web outsides bottom is connected；On the line direction of two motors, the two ends of top box template and nowel template
It is connected respectively with end box plate；
The end box plate, top box template and nowel template are including inner plating (7), lamina rara externa (8) and including being vertically arranged
Diaphragm plate (9) between laminate and lamina rara externa, wherein inner plating are located at inner side and are connected with motor coxostermum, and end box plate
Inner plating also with air intake coxostermum be connected；The central structural element also includes the interior of motor side web outside and end box plate
The small stiffener plate (16) being connected between laminate；
The housing also includes the frame mounting seat (22) for hoisting frame, the centrally disposed structural member both sides of frame mounting seat
And be fixedly connected with the lamina rara externa of end box plate；
The central structural element also includes middle part that is being arranged on motor side web outside and being located between motor one and motor two
Box support beam (14), the length direction of middle part box support beam is positioned and supported within upper box along motor side web height direction
Between plate (24) and nowel template (25).
2. the rack construction of the double centrifugal impeller blower fans of a kind of bullet train according to claim 1, it is characterised in that described
Middle part box support beam (14) includes shrouding (141) and the plate face at least two piece big stiffener plate vertical with motor coxostermum
(142), major stiffener plates are connected along motor output shaft axial direction one end is vertical with motor coxostermum respectively, the other end with
The shrouding is vertically connected, and big stiffener plate upper end and shrouding upper end and the inner plating of top box template are connected, under big stiffener plate
End and shrouding lower end and the inner plating of nowel template are connected.
3. a kind of rack construction of the double centrifugal impeller blower fans of bullet train according to claim 2, it is characterised in that groove profile
The plate face of internal partition is located in the middle vertical plane of shrouding.
4. the rack construction of the double centrifugal impeller blower fans of a kind of bullet train according to claim 2, it is characterised in that described
Big stiffener plate upper end is wide, lower end is narrow, the relative motor coxostermum inclination of vertical with the big stiffener plate connected shrouding, described
The inner plating plate face of top box template is tilted down with respect to its lamina rara externa plate face, one end that wherein inner plating is connected with motor coxostermum
For low side, the big stiffener plate upper end being connected with top box template inner plating is also configured as matching with the inner plating plate face of top box template
Hypotenuse.
5. a kind of rack construction of the double centrifugal impeller blower fans of bullet train according to claim 1, it is characterised in that center
Structural member both sides are each provided with being provided with one or more use in one or more frame mounting seats (22), each frame mounting seat
There is an installation position to be exported with nowel template along motor in the installation position (221) of connection outside support, in each frame mounting seat
Align in Axial and radial direction.
6. the rack construction of the double centrifugal impeller blower fans of a kind of bullet train according to claim 5, it is characterised in that each
Spring cushion (222) is equipped with the individual installation position.
7. the rack construction of the double centrifugal impeller blower fans of a kind of bullet train according to claim 1, it is characterised in that described
Motor coxostermum upper end is provided with the bending edges one (112) to motor web outside bending, and the top plate is connected with bending edges one；Institute
Air intake coxostermum upper end is stated provided with the bending edges two (122) to inlet side web outside bending, the top plate is consolidated with bending edges two
Even.
8. the rack construction of the double centrifugal impeller blower fans of a kind of bullet train according to claim 1, it is characterised in that described
Air intake coxostermum lower end is provided with the L-type bending edges three (123) to inlet side web outside bending, and L-type bending edges three are by inlet side
90 degree of compositions of web lower end bending twice, the top plate is provided with the bending edges four of downward bending close to one end of air intake coxostermum
(231), the central structural element also includes the L-type external partition for separating two air inlets that inlet side web outside is vertically connected
(15), L-type external partition upper end is connected with top plate, and L-type external partition lower end is connected with L-type bending edges three.
9. a kind of rack construction of the double centrifugal impeller blower fans of bullet train according to any one in claim 1~8, its
It is characterised by, the top box template is made up of top plate extension bending, and the lamina rara externa of wherein top box template is faced by top plate
The extension of motor side web outside direction is constituted, and bending is constituted twice for the top plate end of the inner plating of top box template after extending.
10. a kind of rack construction of the double centrifugal impeller blower fans of bullet train according to any one in claim 1~8,
Characterized in that, the nowel template is made up of motor coxostermum lower end to the multiple bending of motor web outside, wherein lower box
The lamina rara externa of plate is constituted for 90 degree from motor coxostermum lower end to the bending of motor web outside, and the inner plating of nowel template is by lamina rara externa
90 degree of compositions of bending twice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621403921.3U CN206377054U (en) | 2016-12-20 | 2016-12-20 | A kind of rack construction of the double centrifugal impeller blower fans of bullet train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621403921.3U CN206377054U (en) | 2016-12-20 | 2016-12-20 | A kind of rack construction of the double centrifugal impeller blower fans of bullet train |
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| Publication Number | Publication Date |
|---|---|
| CN206377054U true CN206377054U (en) | 2017-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621403921.3U Withdrawn - After Issue CN206377054U (en) | 2016-12-20 | 2016-12-20 | A kind of rack construction of the double centrifugal impeller blower fans of bullet train |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704246A (en) * | 2016-12-20 | 2017-05-24 | 株洲联诚集团有限责任公司 | Machine frame structure of double-centrifugal-impeller draught fan of high-speed train |
-
2016
- 2016-12-20 CN CN201621403921.3U patent/CN206377054U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704246A (en) * | 2016-12-20 | 2017-05-24 | 株洲联诚集团有限责任公司 | Machine frame structure of double-centrifugal-impeller draught fan of high-speed train |
| CN106704246B (en) * | 2016-12-20 | 2022-08-16 | 湖南联诚轨道装备有限公司 | Rack structure of high-speed train double-centrifugal-impeller fan |
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