CN207352088U - Omnipotent ground structure fixes alternative - Google Patents
Omnipotent ground structure fixes alternative Download PDFInfo
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- CN207352088U CN207352088U CN201721226279.0U CN201721226279U CN207352088U CN 207352088 U CN207352088 U CN 207352088U CN 201721226279 U CN201721226279 U CN 201721226279U CN 207352088 U CN207352088 U CN 207352088U
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- earthing
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- grounding means
- bearing
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Abstract
It the utility model is related to a kind of rail vehicle earthing or grounding means and fix alternative, alternative is fixed more specifically to a kind of omnipotent ground structure.The device is made of experiment axle assembly assembly (1) and two earthing brush housing assembly assemblies (2), two earthing brush housing assembly assemblies (2) are respectively fitted over the both ends of experiment axle assembly assembly (1), rotated by the output torque band dynamic test axle assembly assembly (1) of motor, make ground connection contact disc (11) and earthing brush (15) mutual high-speed friction；Fixed structure of two earthing brush housing assembly assemblies (2) as whole device, is bolted on earthing or grounding means detection device.The utility model is in the case where being changed without detection device, can be on same earthing or grounding means detection device by replacing the earthing or grounding means completion experiment replaced spindle nose and match different model, the drawbacks of avoiding replacing detection device because of earthing or grounding means model difference, cost-effective, convenient operation.
Description
Technical field
It the utility model is related to a kind of rail vehicle earthing or grounding means and fix alternative, more specifically, the utility model
It is related to a kind of omnipotent ground structure and fixes alternative.
Background technology
On the premise of carrying out railway speed raising principles and policies in China, the speed of service of China's rail vehicle has very big
Improve.This also causes EMU technology to quickly grow, and has reached 350km/ in the EMU max. speed of operation at present
H, the EMU max. speed in development is already close to 500km/h.But with the raising of speed, the safety issue of EMU
Become increasingly conspicuous, some critical components such as axle box bearing and earthing or grounding means etc., are easily running at high speed and the environment of high vibration
Lower generation fatigue rupture or sharp wear.
At present, it is also many to be directed to the detection testing equipment of earthing or grounding means, still, the testing stand of earthing or grounding means is typically all
For the earthing or grounding means of a certain model, such as CRH3 and CRH5 series of ground devices, it is contemplated that the structure of testing stand, general nothing
Method meets the requirement that an earthing or grounding means testing stand matching Multiple Type earthing or grounding means is tested.It thus provides one kind ten thousand
Energy ground structure fixes alternative to realize the function of the test different model earthing or grounding means on same detection device.
Utility model content
Technical problem to be solved in the utility model is to realize to test different model ground connection on same detection device
The function of device, there is provided a kind of omnipotent ground structure fixes alternative.
In order to solve the above technical problems, the utility model adopts the following technical scheme that realization, be described with reference to the drawings as
Under：
A kind of omnipotent ground structure fixes alternative, total by experiment axle assembly assembly 1 and two earthing brush housings
Being formed into assembly 2, two earthing brush housing assemblies assembly 2 is respectively fitted over the both ends of experiment axle assembly assembly 1,
Short hollow earthing experiment 3 between centers of axis in guarantee test axle assembly assembly 1 is withstood in earthing brush housing assembly assembly 2
13 one end of axle box of bullet train bearing, make experiment axle assembly assembly 1 and two earthing brush housing assembly assemblies 2 complete it is basic
Coordinate positioning, rotated by the output torque band dynamic test axle assembly assembly 1 of motor, make ground connection contact disc 11 and earthing brush
15 mutual high-speed frictions；Two earthing brush housing assembly 2 fixed structures as whole device of assembly, are bolted
On earthing or grounding means detection device.
The experiment axle assembly assembly 1 is contacted by short hollow earthing experiment axis 3, experiment shaft end face belt pulley 4, ground connection
Disk assembly 5 and short axle head are replaced set assembly 6 and are formed,
The short axle head is replaced set assembly 6 and is made of two replacement spindle noses 7 and replacement spindle nose stretching screw 8, two
The both ends that spindle nose 7 is sleeved on short hollow earthing experiment axis 3 are replaced, short hollow earthing is fixed on by replacing spindle nose stretching screw 8
Test on axis 3, bolt hole is drilled with described two replacement spindle noses 7, for installing ground connection contact disc assembly 5；The experiment axis
End-face hole belt pulley 4 is fixed on the middle part of short hollow earthing experiment axis 3,4 side of experiment shaft end face belt pulley by long spline
Threaded hole is drilled with, experiment shaft end face belt pulley 4 is locked by jackscrew, reaches pinpoint purpose.
The short hollow earthing experiment axis 3 is internally provided with through hole, replaces set assembly 6 for installing short axle head, at the same time
The quality of device is reduced, the short hollow earthing experiment axis 3 is a two-part multi-diameter shaft, on the second segment multi-diameter shaft at middle part
Experiment shaft end face belt pulley 4 is installed.
The middle part for replacing spindle nose stretching screw 8 is welded with four blocks of disc steel plates, withstands on short hollow earthing experiment axis 3
Inner ring at, it is the vibration for slowing down short hollow earthing experiment axis 3 that it, which is acted on,；It is described to replace the various informative of spindle nose 7, according to being pacified
The difference of the earthing or grounding means model of dress, replaces corresponding replacement spindle nose 7, for making up caused by earthing or grounding means difference
Mounting distance is inadequate.
The ground connection contact disc assembly 5 is made of spindle nose end cap 9, contact disc installation cushion block 10 and ground connection contact disc 11,
5 component of ground connection contact disc assembly all uses genuine test block, and the spindle nose end cap 9 is fixed on by hexagon socket head cap screw to be replaced
Change on spindle nose 7, passing sequentially through hexagon socket head cap screw between the ground connection contact disc 11, contact disc installation cushion block 10, spindle nose end cap 9 consolidates
It is fixed.
The earthing brush housing assembly assembly 2 is by axle box of bullet train bearing 13, lightweight vibration type bearing support 14, bearing
The outer side interface circle 16 of side interface circle 17, lightweight bearing block, bearing inner side labyrinth oil sealing 18, earthing brush 15 and earthing or grounding means in seat
Housing 12 forms,
The axle box of bullet train bearing 13 is installed in lightweight vibration type bearing support 14, and lightweight vibrates the inner ring of type bearing support 14
It is interference fitted with the outer ring of axle box of bullet train bearing 13, the bottom of lightweight vibration type bearing support 14 is installed on earthing or grounding means by bolt
On detection device；
Side interface circle 17 and the outer side interface circle 16 of lightweight bearing block are vibrated by bolt installed in lightweight in the bearing block
The both ends of type bearing support 14, play the role of fixed protection axle box of bullet train bearing 13, are installed in bearing block at side interface circle 17
Labyrinth oil sealing 18 on the inside of bearing, ensures that axle box of bullet train bearing 13 has a good lubricating condition, in the axle box of bullet train bearing 13
Circle tests axis 3 with short hollow earthing by interference fit and is fixed together；The earthing brush 15 is directly nested in earthing or grounding means
In housing 12, the earthing or grounding means housing 12 is fixed on outside lightweight bearing block on side interface circle 16 by hexagon socket head cap screw.
The beneficial effects of the utility model are compared with prior art：
1st, omnipotent ground structure described in the utility model fixes alternative in the case where being changed without detection device, can
With
Completed on same earthing or grounding means detection device by replacing replacement spindle nose to match the earthing or grounding means of different model
Experiment, keeps away
The drawbacks of having exempted to replace detection device because of earthing or grounding means model difference, cost-effective, convenient operation.
2nd, omnipotent ground structure fixation alternative described in the utility model is simple in structure, and equipment is carried out by bolt
Connection, facilitates operating personnel's work and maintenance.
Brief description of the drawings
The utility model will be further described below with reference to the accompanying drawings：
Fig. 1 is that omnipotent ground structure described in the utility model fixes alternative (CRH3 earthing or grounding means) structure composition
Axonometric projection graph；
Fig. 2 is that omnipotent ground structure described in the utility model fixes alternative (CRH3 earthing or grounding means) structure composition
Explosive view；
Fig. 3 is that omnipotent ground structure described in the utility model fixes alternative (CRH3 earthing or grounding means) structure composition
Section view perspective view；
Fig. 4 is that omnipotent ground structure described in the utility model fixes alternative (CRH5 earthing or grounding means) structure composition
Axonometric projection graph；
Fig. 5 is that omnipotent ground structure described in the utility model fixes alternative (CRH5 earthing or grounding means) structure composition
Explosive view；
Fig. 6 is that omnipotent ground structure described in the utility model fixes alternative (CRH5 earthing or grounding means) structure composition
Section view perspective view；
In figure：1. axle assembly assembly is tested, 2. earthing brush housing assembly assemblies, 3. short hollow earthing experiment axis,
4. testing shaft end face belt pulley, 5. ground connection contact disc assemblies, 6. short axle heads, which are replaced, covers assembly, 7. replacement spindle noses, 8.
Replacement spindle nose stretching screw, 9. spindle nose end caps, 10. contact discs installation cushion block, 11. ground connection contact discs, 12. earthing or grounding means housings,
13. axle box of bullet train bearing, 14. lightweights vibration type bearing support, 15. earthing brushes, the outer side interface circle of 16. lightweight bearing blocks, 17. axis
Side interface circle in bearing, 18. bearings inner side labyrinth oil sealing.
Embodiment
The utility model is explained in detail below in conjunction with the accompanying drawings：
Omnipotent ground structure described in the utility model fixes alternative can be in same earthing or grounding means detection device
On replace spindle nose by replacing and match the earthing or grounding means of different model, complete the testing experiment of different model earthing or grounding means.
Refering to Fig. 1 to Fig. 3, the omnipotent ground structure fixes alternative by installing the tool of CRH3 type earthing or grounding means
Body structure, ensures be changed without the situation of detection device by installing the replacement spindle nose 7 to match with CRH3 type earthing or grounding means
Under, detection device can test the earthing or grounding means of this model.
Refering to Fig. 4 to Fig. 6, the omnipotent ground structure fixes alternative by installing the tool of CRH5 type earthing or grounding means
Body structure, ensures be changed without the situation of detection device by installing the replacement spindle nose 7 to match with CRH5 type earthing or grounding means
Under, detection device can test the earthing or grounding means of this model.
The omnipotent ground structure, which fixes alternative, includes experiment axle assembly assembly 1 and two earthing brush housings
General assembly body 2, wherein two earthing brush housing assembly assembly 2 are respectively fitted over the both ends of experiment axle assembly assembly 1, protect
Short hollow earthing experiment 3 between centers of axis in confirmatory test axle assembly assembly 1 withstands on dynamic in earthing brush housing assembly assembly 2
13 one end of axle axle box bearing, makes experiment axle assembly assembly 1 and two earthing brush housing assembly assemblies 2 complete basic match somebody with somebody
Positioning is closed, different earthing or grounding means is matched by varying the model for replacing spindle nose 7, wherein short in experiment axle assembly assembly
After hollow earthing experiment 3 structure of axis is constant, and axle box of bullet train bearing 13 is assembled with short hollow earthing experiment axis 3, both sides motor-car
The centre-to-centre spacing of axle box bearing 13 is definite value, what the length that whole omnipotent ground structure fixes alternative was tested according to being actually needed
Earthing or grounding means model is related；Omnipotent ground structure is fixed alternative and is assembled by the output torque band dynamic test axle assembly of motor
Body 1 rotates, and makes ground connection contact disc 11 and 15 mutual high-speed friction of earthing brush；Two earthing brush housing assembly assemblies 2 are made
For the fixed structure of whole device, it is bolted on earthing or grounding means detection device.
The experiment axle assembly assembly 1 includes short hollow earthing experiment axis 3, experiment shaft end face belt pulley 4, short car
Spindle nose replaces set assembly 6 and ground connection contact disc assembly 5, wherein short axle head replaces two replacement spindle noses 7 of set assembly 6
The both ends of short hollow earthing experiment axis 3 are sleeved on, replacing spindle nose stretching screw 8 by one is fixed on short hollow earthing experiment axis 3
On, replace for two and be drilled with bolt hole on spindle nose 7, for being grounded the installation of contact disc assembly 5；Test shaft end face belt pulley 4
The middle part of short hollow earthing experiment axis 3 is fixed on by long spline, 5 side of experiment shaft end face belt pulley is drilled with the screw thread of M6
Hole, locks experiment shaft end face belt pulley 5 by jackscrew, reaches pinpoint purpose.
The short hollow earthing experiment axis 3 uses motor-car genuine axle, is transformed on its basis, short hollow earthing
Through hole inside experiment axis 3 is that short axle head replaces the installation of set assembly 6 for convenience, while reduce the quality of device, short
Hollow earthing experiment axis 3 is a two-part multi-diameter shaft, and experiment shaft end face skin is installed with the second segment multi-diameter shaft at middle part
Belt wheel 4.
The short axle head, which replaces set assembly 6, to be included two replacement spindle noses 7 and replaces spindle nose stretching screw 8, wherein
The both ends of short hollow earthing experiment axis 3 can be sleeved on by replacing spindle nose 7, and replacing spindle nose stretching screw 8 by one is fixed, and
The middle part for replacing spindle nose stretching screw 8 is welded with four blocks of disc steel plates, withstands at the inner ring of short hollow earthing experiment axis 3, subtracts
The vibration of slow short hollow earthing experiment axis 3；The various informative of spindle nose 7 is replaced, according to the difference for the earthing or grounding means model installed,
Such as CRH3 types earthing or grounding means and CRH5 type earthing or grounding means, the corresponding replacement spindle nose 7 with commutation, to make up due to earthing or grounding means
The problem of mounting distance caused by difference is inadequate；It is all genuine standard to replace the ground connection contact disc assembly installed on spindle nose 7
Structural member, has no change.
The ground connection contact disc assembly 5 includes spindle nose end cap 9, contact disc installation cushion block 10 and ground connection contact disc 11,
5 component of ground connection contact disc assembly all uses genuine test block, and wherein spindle nose end cap 9 is fixed by four M16 hexagon socket head cap screws
On spindle nose 7 is replaced, and contact disc installation cushion block 10 being fixed on spindle nose end cap 9 by eight M10 hexagon socket head cap screws, it is grounded
Contact disc 11 is fixed on contact disc by four M10 hexagon socket head cap screws and installs on cushion block 10, completes ground connection contact disc assembly 5
Assembling is fixed.
The earthing brush housing assembly assembly 2 includes axle box of bullet train bearing 13, lightweight vibration type bearing support 14, axis
The outer side interface circle 16 of side interface circle 17, lightweight bearing block, bearing inner side labyrinth oil sealing 18, earthing brush 15 and ground connection dress in bearing
Housing 12 is put, wherein axle box of bullet train bearing 13 is installed in lightweight vibration type bearing support 14, and lightweight vibrates the interior of type bearing support 14
The outer ring of circle and axle box of bullet train bearing 13 is interference fitted, and the bottom of lightweight vibration type bearing support 14 is installed on ground connection by bolt and fills
Put on detection device；Side interface circle 17 is vibrated by bolt installed in lightweight in the outer side interface circle 16 of lightweight bearing block and bearing block
The both ends of type bearing support 14, play the role of fixed protection axle box of bullet train bearing 13, are installed in bearing block at side interface circle 17
Labyrinth oil sealing 18 on the inside of bearing, ensure that axle box of bullet train bearing 13 has a good lubricating condition, axle box of bullet train bearing 13 it is interior
Circle tests axis 3 with short hollow earthing by interference fit and is fixed together；Earthing brush 15 is directly nested in earthing or grounding means housing
, can be with mutual disassembly in 12, the convenient measurement to 15 wear extent of earthing brush, and earthing or grounding means housing 12 passes through hexagonal in M12
Bolt is fixed on the outer side interface circle 16 of lightweight bearing block.
Omnipotent ground structure fixes the operation principle of alternative：
Omnipotent ground structure, which fixes alternative, to match connecing for different model in the case where being changed without detection device
Ground device completes the performance test of earthing or grounding means.The structure of earthing or grounding means is typically all fixed, by using matched replacement
Spindle nose carrys out the contact disc component of connecting earthing device, by the assembling of parts, makes earthing brush with being grounded contact disc phase mutual connection
Touch, transmit high-voltage electricity and carry out phase mutual friction；Omnipotent ground structure fixes experiment axis and replacement spindle nose side in alternative
Just different model earthing or grounding means is matched, omnipotent ground structure fixes the earthing brush housing assembly assembly of alternative
Earthing or grounding means, the progress of convenient experiment can be fixed.
Claims (6)
1. a kind of omnipotent ground structure fixes alternative, total by experiment axle assembly assembly (1) and two earthing brush housings
Formed into assembly (2), it is characterised in that：
Two earthing brush housing assemblies assembly (2) is respectively fitted over the both ends of experiment axle assembly assembly (1), ensures examination
Short hollow earthing experiment axis (3) between centers tested in axle assembly assembly (1) is withstood in earthing brush housing assembly assembly (2)
Axle box of bullet train bearing (13) one end, completes experiment axle assembly assembly (1) and two earthing brush housing assembly assemblies (2)
Basic cooperation positioning, is rotated by the output torque band dynamic test axle assembly assembly (1) of motor, makes ground connection contact disc (11)
With earthing brush (15) mutual high-speed friction；Fixed knot of two earthing brush housing assembly assemblies (2) as whole device
Structure, is bolted on earthing or grounding means detection device.
2. a kind of omnipotent ground structure according to claim 1 fixes alternative, it is characterised in that：
The experiment axle assembly assembly (1) is tested axis (3), experiment shaft end face belt pulley (4) by short hollow earthing, is connect
Tactile disk assembly (5) and short axle head replace set assembly (6) composition；
The short axle head is replaced set assembly (6) and is made of two replacement spindle noses (7) and replacement spindle nose stretching screw (8), and two
A both ends replaced spindle nose (7) and be sleeved on short hollow earthing experiment axis (3), by replace spindle nose stretching screw (8) be fixed on it is short
On hollow earthing experiment axis (3), bolt hole is drilled with described two replacement spindle noses (7), contact disc assembly is grounded for installing
(5)；The experiment shaft end face belt pulley (4) is fixed on the middle part of short hollow earthing experiment axis (3) by long spline, tests axis
End-face hole belt pulley (4) side is drilled with threaded hole, locks experiment shaft end face belt pulley (4) by jackscrew, reaches and be accurately positioned
Purpose.
3. a kind of omnipotent ground structure according to claim 2 fixes alternative, it is characterised in that：
Four blocks of disc steel plates are welded with the middle part of the replacement spindle nose stretching screw (8), withstand on short hollow earthing experiment axis (3)
Inner ring at, it is the vibration for slowing down short hollow earthing experiment axis (3) that it, which is acted on,；It is described to replace the various informative of spindle nose (7), according to
The difference for the earthing or grounding means model installed, replaces corresponding replacement spindle nose (7), for making up by earthing or grounding means difference institute
Caused by mounting distance it is inadequate.
4. a kind of omnipotent ground structure according to claim 2 fixes alternative, it is characterised in that：
The ground connection contact disc assembly (5) is by spindle nose end cap (9), contact disc installation cushion block (10) and ground connection contact disc (11) group
Into described ground connection contact disc assembly (5) component all uses genuine test block, and the spindle nose end cap (9) passes through hexagon socket head cap screw
It is fixed on and replaces on spindle nose (7), between the ground connection contact disc (11), contact disc installation cushion block (10), spindle nose end cap (9) successively
Fixed by hexagon socket head cap screw.
5. a kind of omnipotent ground structure according to claim 1 fixes alternative, it is characterised in that：
The earthing brush housing assembly assembly (2) is by axle box of bullet train bearing (13), lightweight vibration type bearing support (14), axis
The outer side interface circle (16) of side interface circle (17), lightweight bearing block, bearing inner side labyrinth oil sealing (18), earthing brush (15) in bearing
Formed with earthing or grounding means housing (12)；
The axle box of bullet train bearing (13) is installed in lightweight vibration type bearing support (14), and lightweight vibrates the interior of type bearing support (14)
The outer ring of circle and axle box of bullet train bearing (13) is interference fitted, and the bottom of lightweight vibration type bearing support (14) is installed on by bolt to be connect
On ground device detection device.
6. a kind of omnipotent ground structure according to claim 5 fixes alternative, it is characterised in that：
Side interface circle (17) and the outer side interface circle (16) of lightweight bearing block are vibrated by bolt installed in lightweight in the bearing block
The both ends of type bearing support (14), play the role of fixed protection axle box of bullet train bearing (13), side interface circle (17) in bearing block
Labyrinth oil sealing (18) on the inside of place's installation bearing, ensures that axle box of bullet train bearing (13) has good lubricating condition, the motor-car axis
Axle box bearing (13) inner ring tests axis (3) with short hollow earthing by interference fit and is fixed together；The earthing brush (15) is straight
Connect and be nested in earthing or grounding means housing (12), the earthing or grounding means housing (12) is fixed on lightweight bearing block by hexagon socket head cap screw
On outer side interface circle (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721226279.0U CN207352088U (en) | 2017-09-23 | 2017-09-23 | Omnipotent ground structure fixes alternative |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721226279.0U CN207352088U (en) | 2017-09-23 | 2017-09-23 | Omnipotent ground structure fixes alternative |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207352088U true CN207352088U (en) | 2018-05-11 |
Family
ID=62411353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721226279.0U Active CN207352088U (en) | 2017-09-23 | 2017-09-23 | Omnipotent ground structure fixes alternative |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207352088U (en) |
-
2017
- 2017-09-23 CN CN201721226279.0U patent/CN207352088U/en active Active
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