CN106908244A - A kind of force feed high speed roller bearing testing stand - Google Patents
A kind of force feed high speed roller bearing testing stand Download PDFInfo
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- CN106908244A CN106908244A CN201710160622.4A CN201710160622A CN106908244A CN 106908244 A CN106908244 A CN 106908244A CN 201710160622 A CN201710160622 A CN 201710160622A CN 106908244 A CN106908244 A CN 106908244A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- General Physics & Mathematics (AREA)
- Rolling Contact Bearings (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of force feed high speed roller bearing testing stand, it is made up of base, filter, oil pump, fuel tank, oil pipe, three-way interface, motor, shaft coupling, rotating shaft, flat key, positioning shaft sleeve, bearing, load bearings, test bearing, injection loop, bearing block bottom, bearing block top, loading axis bearing, snap ring, round nut, bearing (ball) cover, felt collar oil sealing, screw thread load bar, support, packing ring, fastening bolt etc..The device is arranged side by side using two pairs of bearings and supports the structure type of rotating shaft, by the lubricating oil needed for oil pump supply high speed roller bearing testing stand and it is provided with filter lubricating oil is purified, it is achieved thereby that the operating of testing stand high-speed smooth and lubricating oil down cycles utilizes to improve its greasy property.Compared with existing bearing test table apparatus, the device has dependable performance, convenient disassembly and simple operation and other advantages when running at high speed, and is particularly well-suited to the more occasions of bearing heat production such as high speed roller bearing experiment.
Description
Technical field
The present invention relates to a kind of rolling bearing test table, more particularly to a kind of force feed high speed roller bearing testing stand.
Background technology
Rolling bearing is one of important foundation part in industrial machinery, and its service behaviour directly determines whole machine running
Performance.Rolling bearing is generally made up of outer ring, inner ring, rolling element and the part of retainer four, and its effect is the rotation in support machinery
Rotation member is with the friction reduced in its motion and the rotating accuracy for ensureing rotation part.With all kinds of mechanical precisions, rapidity and can
By the continuous improvement of property requirement, then it is particularly important to carry out experimental study to rolling bearing, so as to need design to adapt at a high speed
The rolling bearing test table of proterties condition.
At present, the most rolling bearing test table groundwork of in the market is under the operating mode of middle low speed, what it was used
Lubricant is generally lubricating grease, and bearing test-bed often has bearing heating excessively causes asking for lubricant greasy property decline
Topic.Patent of invention CN200620051114.X discloses a kind of rolling bearing test table, and it mainly includes main shaft, empty set in main shaft
On loading sleeve, through the bearing block of bearing fixed main shaft, console, drive device, bearing block has on base plate on loading sleeve
There is the axial load regulating member being fixed on base plate at loading device, bearing block two ends, have sensor respectively on bearing block, add
Carry and put, also have sensor respectively on axial load regulating member.Though the invention is simple and compact for structure, because it is only with two
Individual bearing is the regular lubricating grease for adding as the support and lubricant of main shaft, thus the device exist during high-speed cruising because
The problem that rolling bearing heat production is more and causes the greasy property of lubricant to decline.
The content of the invention
In order to overcome, the rolling bearing test table running speed described in background technology is limited and lubricant is because speed is higher
The problem for causing greasy property to decline, the present invention provides a kind of force feed high speed roller bearing testing stand, and the device uses two
Bearing is arranged side by side and supports the structure of rotating shaft, and the lubricating oil needed for utilization oil pump supply high speed roller bearing testing stand, from
And ensure that the rolling bearing test table precision for running at high speed and the down cycles for realizing lubricating oil are utilized, and then improve profit
Lubrication prescription greasy property.
The technical solution adopted for the present invention to solve the technical problems includes：Base, filter, oil pump, fuel tank, oil pipe I,
Oil pipe II, oil pipe III, oil pipe IV, oil pipe V, oil pipe VI, oil pipe VII, three-way interface I, three-way interface II, motor, shaft coupling, turn
Axle, flat key I, flat key II, positioning shaft sleeve I, positioning shaft sleeve II, bearing I, bearing II, bearing III, bearing IV, load bearings, experiment
Bearing, injection loop I, injection loop II, bearing block bottom I, bearing block top I, bearing block bottom II, axle bed top II, experiment axle
Bearing bottom, test bearing seat top, loading axis bearing, snap ring I, snap ring II, round nut, bearing (ball) cover I, bearing (ball) cover II,
Bearing (ball) cover III, bearing (ball) cover IV, load bearings end cap I, load bearings end cap II, test bearing end cap I, test bearing end cap
IIth, felt collar oil sealing I, felt collar oil sealing II, felt collar oil sealing III, felt collar oil sealing VI, felt collar oil sealing V, felt collar oil sealing VI, felt collar oil sealing
VIIth, screw thread load bar, support, packing ring, fastening bolt I, fastening bolt II, fastening bolt III, fastening bolt IV, fastening bolt
Vth, fastening bolt VI, fastening bolt VII, fastening bolt VIII, fastening bolt Ⅸ, fastening bolt Ⅹ.Motor is fixed by fastening bolt I
On base；Shaft coupling one end is connected by flat key I with motor output shaft, and the other end is connected by flat key II with rotating shaft；Bearing
Seat bottom I, bearing block bottom II, test bearing seat bottom are consolidated by fastening bolt IV, fastening bolt VI, fastening bolt Ⅹ respectively
It is scheduled on base；Bearing block top I, bearing block top II, test bearing seat top are respectively by under fastening bolt and bearing block
Portion I, bearing block bottom II, test bearing seat bottom are fixed together composition bearing block；The inner ring of bearing III is interference with rotating shaft
Coordinate, one end is engaged with the positioning shaft shoulder of rotating shaft；Injection loop II is gap cooperation, one end and bearing III with rotating shaft
Inner ring other end be engaged；The inner ring of bearing IV is interference fit, one end and the other end of injection loop II with rotating shaft
It is engaged, and axial restraint is carried out by snap ring II；The outer ring of bearing IV, the outer ring of bearing III and its inner hole of bearing seat form interference
Coordinate；Bearing (ball) cover I, bearing (ball) cover II compress outer ring, the outer ring of bearing III of bearing IV respectively, and are fixed by fastening bolt III
Packing ring is provided with its bearing block, and at its cooperation, bearing (ball) cover I, the endoporus of bearing (ball) cover II and rotating shaft coordinate for gap；Felt
Circle oil sealing VII, felt collar oil sealing VI are respectively embedded into bearing (ball) cover I, the dovetail groove of bearing (ball) cover II, felt collar oil sealing VII, felt collar oil sealing
VI endoporus is engaged to form sealing with rotating shaft；The inner ring of bearing II is interference fit with rotating shaft, and one end is determined with rotating shaft
The position shaft shoulder is engaged；With rotating shaft for gap coordinates, one end is engaged injection loop I with the inner ring other end of bearing II；Axle
The inner ring and rotating shaft for holding I are interference fit, and one end is engaged with the other end of injection loop I, and are carried out by snap ring I axially solid
It is fixed；The outer ring of bearing II, the outer ring of bearing I and its inner hole of bearing seat form interference fit；IV point of bearing (ball) cover III, bearing (ball) cover
Not Ya Jin bearing II outer ring, the outer ring of bearing I, and be fixed on its bearing block by fastening bolt VII, and be provided with its cooperation
Packing ring, bearing (ball) cover III, the endoporus of bearing (ball) cover IV and rotating shaft coordinate for gap；Felt collar oil sealing V, felt collar oil sealing VI distinguish embedding
Enter in bearing (ball) cover III, the dovetail groove of bearing (ball) cover IV, felt collar oil sealing V, the endoporus of felt collar oil sealing VI are engaged to be formed with rotating shaft
Sealing；Positioning shaft sleeve II is interference fit with rotating shaft, and its large end face is engaged with the positioning shaft shoulder of rotating shaft；The inner ring of load bearings
It is interference fit with positioning shaft sleeve II, its end face is engaged with the flange of positioning shaft sleeve II；The outer ring of load bearings and loading axis
Bearing endoporus is interference fit；Load bearings end cap I, load bearings end cap II match with two end faces of load bearings outer ring
Close, and be fixed in loading axis bearing by fastening bolt VIII, and packing ring, load bearings end cap I, load bearings are provided with its cooperation
The endoporus of end cap II is with rotating shaft for gap coordinates；Felt collar oil sealing III, felt collar oil sealing II are respectively embedded into load bearings end cap I, loading
In the dovetail groove of bearing (ball) cover II, felt collar oil sealing III, the endoporus of felt collar oil sealing II are engaged to form sealing with rotating shaft；Support passes through
Fastening bolt is fixed on base, and screw thread load bar is screw thread mating connection with support, on screw thread load bar and loading axis bearing
Hole be that gap coordinates, the pushing tow head of its lower end is engaged with the outer ring of load bearings, composition loading device；Positioning shaft sleeve I with
Rotating shaft is interference fit, and its large end face is engaged with the positioning shaft shoulder of rotating shaft；The inner ring of test bearing is interference with positioning shaft sleeve I
Coordinate, its end face is engaged with the flange of positioning shaft sleeve I, and carries out axial restraint by round nut；The outer ring of test bearing and its
Inner hole of bearing seat forms interference fit；Two end face phases of test bearing end cap I, test bearing end cap II and test bearing outer ring
Coordinate, and be fixed on its bearing block by fastening bolt Ⅸ, and packing ring is provided with its cooperation, the endoporus of test bearing end cap I with
Rotating shaft coordinates for gap；In the dovetail groove of the insertion test bearing of felt collar oil sealing I end cap I, endoporus and the rotating shaft of felt collar oil sealing I match
Close and form sealing；Filter, fuel tank, oil pump are fixed on base by fastening bolt respectively；The inlet port of oil pump passes through oil pipe III
It is connected with the oil-out of fuel tank；The middle port of three-way interface I is connected by oil pipe IV with the force feed mouthful of oil pump, and its second mouthful passes through
Oil pipe VI is connected with the oil inlet on the boss of bearing block top II, and its 3rd mouthful by oil pipe VII and the boss of bearing block top I
Oil inlet be connected；The middle port of three-way interface II is connected by oil pipe VII with the oil-out on the side of bearing block bottom I, and it
Two mouthfuls are connected by oil pipe V with the oil-out on the side of bearing block bottom II, its 3rd mouthful entering by oil pipe I and filter
Hydraulic fluid port is connected；The oil-out of filter is connected by oil pipe II with the oil inlet of fuel tank.
The present invention has an advantageous effect in that compared with background technology：
（1）The present invention is to be arranged side by side to support the knot of rotating shaft using two pairs of bearings with the maximum difference of other like products
Structure, and using the lubricating oil needed for oil pump supply high speed roller bearing testing stand, so as to the down cycles for realizing lubricating oil are utilized,
Bearing heating can be prevented during testing stand high-speed cruising excessively so that lubricating oil temperature is too high and cause detection inaccurate.
（2）Lubricating oil in bearing block can ensure the cleaning of lubricating oil into being provided with filter before fuel tank storage at lower temperature
Degree.
The apparatus structure is simply compact, easy to operate, dependable performance and dismounting facility, be particularly well-suited to high speed roller bearing
The more occasions of bearing heat production such as experiment.
Brief description of the drawings
Fig. 1 is principle schematic diagram. of the invention.
Fig. 2 is overall structure diagram of the invention.
Fig. 3 is part-structure schematic diagram of the invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples：
As shown in accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, the present invention include base 1, filter 2, fastening bolt I 3, motor 4, oil pipe I 5,
Oil pipe II 6, fuel tank 7, fastening bolt II 8, flat key I 9, shaft coupling 10, oil pipe III 11, flat key II 12, fastening bolt III 13, bearing
End cap I 14, fastening bolt IV 15, bearing block bottom I 16, bearing (ball) cover II 17, oil pipe IV 18, oil pipe V 19, fastening bolt V
20, oil pump 21, fastening bolt VI 22, bearing (ball) cover III 23, bearing block bottom II 24, fastening bolt VII 25, bearing (ball) cover IV 26,
Fastening bolt VIII 27, load bearings end cap I 28, support 29, load bearings end cap II 30, fastening bolt Ⅸ 31, test bearing end
Lid I 32, test bearing seat bottom 33, fastening bolt Ⅹ 34, test bearing end cap II 35, rotating shaft 36, round nut 37, test bearing
38, positioning shaft sleeve I 39, test bearing seat top 40, felt collar oil sealing I 41, felt collar oil sealing II 42, load bearings 43, screw thread loading
Bar 44, loading axis bearing 45, positioning shaft sleeve II 46, felt collar oil sealing III 47, felt collar oil sealing VI 48, snap ring I 49, oil pipe VI 50, axle
Hold I 51, injection loop I 52, bearing block top II 53, three-way interface I 54, bearing II 55, felt collar oil sealing V 56, oil pipe VII 57, axle
Bearing top I 58, felt collar oil sealing VI 59, bearing III 60, injection loop II 61, bearing IV 62, snap ring II 63, felt collar oil sealing VII 64,
Oil pipe VII 65, three-way interface II 66.
Motor 4 is fixed on base 1 by fastening bolt I 3；The one end of shaft coupling 10 passes through flat key I 9 and the output shaft phase of motor 4
Even, the other end is connected by flat key II 12 with rotating shaft 36；Bearing block bottom I 16, bearing block bottom II 24, test bearing seat bottom
33 are fixed on base 1 by fastening bolt IV 15, fastening bolt VI 22, fastening bolt Ⅹ 34 respectively；Bearing block top I 58,
Bearing block top II 53, test bearing seat top 40 passes through fastening bolt and bearing block bottom I 16, bearing block bottom II respectively
24th, test bearing seat bottom 33 is fixed together composition bearing block；The inner ring of bearing III 60 is interference fit, one with rotating shaft 36
End face is engaged with the positioning shaft shoulder of rotating shaft 36；Injection loop II 61 is gap cooperation, one end and bearing III 60 with rotating shaft 36
Inner ring other end be engaged；The inner ring of bearing IV 62 is interference fit with rotating shaft 36, and one end is another with injection loop II 61
End face is engaged, and carries out axial restraint by snap ring II 63；The outer ring of bearing IV 62, the outer ring of bearing III 60 and its bearing block
Endoporus forms interference fit；Bearing (ball) cover I 14, bearing (ball) cover II 17 compress respectively the outer ring of bearing IV 62, bearing III 60 it is outer
Circle, and be fixed on its bearing block by fastening bolt III 13, and packing ring is provided with its cooperation, bearing (ball) cover I 14, bearing (ball) cover II
17 endoporus is with rotating shaft 36 for gap coordinates；Felt collar oil sealing VII 64, felt collar oil sealing VI 59 are respectively embedded into bearing (ball) cover I 14, bearing
In the dovetail groove of end cap II 17, felt collar oil sealing VII 64, the endoporus of felt collar oil sealing VI 59 are engaged to form sealing with rotating shaft 36；Bearing
II 55 inner ring is interference fit with rotating shaft 36, and one end is engaged with the positioning shaft shoulder of rotating shaft 36；Injection loop I 52 and rotating shaft
36 coordinate for gap, and one end is engaged with the inner ring other end of bearing II 55；The inner ring of bearing I 51 and rotating shaft 36 were
It is full of cooperation, one end is engaged with the other end of injection loop I 52, and carries out axial restraint by snap ring I 49；Outside bearing II 55
Circle, the outer ring of bearing I 51 and its inner hole of bearing seat form interference fit；Bearing (ball) cover III 23, bearing (ball) cover IV 26 are compressed respectively
The outer ring of bearing II 55, the outer ring of bearing I 51, and be fixed on its bearing block by fastening bolt VII 25, and be provided with its cooperation
Packing ring, bearing (ball) cover III 23, the endoporus of bearing (ball) cover IV 26 and rotating shaft 36 coordinate for gap；Felt collar oil sealing V 56, felt collar oil sealing
VI 48 are respectively embedded into bearing (ball) cover III 23, the dovetail groove of bearing (ball) cover IV 26, felt collar oil sealing V 56, felt collar oil sealing VI 48 it is interior
Hole is engaged to form sealing with rotating shaft 36；Positioning shaft sleeve II 46 is interference fit with rotating shaft 36, and its large end face is determined with rotating shaft 36
The position shaft shoulder is engaged；The inner ring of load bearings 43 is interference fit, its end face and positioning shaft sleeve II 46 with positioning shaft sleeve II 46
Flange is engaged；The outer ring of load bearings 43 is interference fit with the endoporus of loading axis bearing 45；Load bearings end cap I 28, loading
Bearing (ball) cover II 30 is engaged with two end faces of the outer ring of load bearings 43, and is fixed on loading axis bearing by fastening bolt VIII 27
Packing ring is provided with 45, and at its cooperation, load bearings end cap I 28, the endoporus of load bearings end cap II 30 and rotating shaft 36 are gap
Coordinate；Felt collar oil sealing III 47, felt collar oil sealing II 42 be respectively embedded into load bearings end cap I 28, load bearings end cap II 30 it is trapezoidal
In groove, felt collar oil sealing III 47, the endoporus of felt collar oil sealing II 42 are engaged to form sealing with rotating shaft 36；Support 29 passes through fastening bolt
It is fixed on base 1, screw thread load bar 44 is screw thread mating connection with support 29, on screw thread load bar 44 and loading axis bearing 45
Hole be that gap coordinates, the pushing tow head of its lower end is engaged with the outer ring of load bearings 43, composition loading device；Positioning shaft sleeve I
39 is interference fit with rotating shaft 36, and its large end face is engaged with the positioning shaft shoulder of rotating shaft 36；The inner ring of test bearing 38 and positioning
Axle sleeve I 39 is interference fit, and its end face is engaged with the flange of positioning shaft sleeve I 39, and carries out axial restraint by round nut 37；Examination
The outer ring and its inner hole of bearing seat for testing bearing 38 form interference fit；Test bearing end cap I 32, test bearing end cap II 35 and examination
Two end faces for testing the outer ring of bearing 38 are engaged, and are fixed on its bearing block by fastening bolt Ⅸ 31, and are provided with its cooperation
Packing ring, endoporus and the rotating shaft 36 of test bearing end cap I 32 are gap cooperation；The insertion test bearing of felt collar oil sealing I 41 end cap I 32
In dovetail groove, the endoporus of felt collar oil sealing I 41 is engaged to form sealing with rotating shaft 36；Filter 2, fuel tank 7, oil pump 21 are respectively by tight
Fixing bolt is fixed on base 1；The inlet port of oil pump 21 is connected by oil pipe III 11 with the oil-out of fuel tank 7；Three-way interface I 54
Middle port be connected by the force feed mouthful of oil pipe IV 18 and oil pump 21, its second mouthful passes through oil pipe VI 50 and bearing block top II 53
Oil inlet on boss is connected, and its 3rd mouthful is connected by oil pipe VII 57 with the oil inlet on the boss of bearing block top I 58；Threeway
The middle port of interface II 66 is connected by oil pipe VII 65 with the oil-out on the side of bearing block bottom I 16, and its second mouthful by oil
Pipe V 19 is connected with the oil-out on the side of bearing block bottom II 24, and its 3rd mouthful by oil pipe I 5 and the oil inlet of filter 2
It is connected；The oil-out of filter 2 is connected by oil pipe II 6 with the oil inlet of fuel tank 7.
Operation principle of the invention is as follows：
Before experiment, the sensor that will gather desired signal is arranged on the inner ring end face of test bearing 38, then by rotating forward
Screw thread load bar 44 and cause that the pushing tow head of its lower end pushes up downwards the outer ring of load bearings 43, its outer ring is extruded by cylindrical roller
The inner ring of load bearings 43, its inner ring passes in rotating shaft 36 radial load, rotating shaft 36 and then radial load is added into experiment again
On bearing 38；During experiment, start motor 4 and oil pump 21, the output shaft of motor 4 drives rotating shaft 36 to rotate, turns by shaft coupling 10
The high-speed rotation of motoring ring test bearing 38 again of axle 36, because 36 liang of Support Positions of rotating shaft are respectively adopted bearing III 60 and bearing IV 62, axle
I 51 and the duplex bearing supporting way of bearing II 55 are held, so the rotating accuracy of rotating shaft 36 during high-speed cruising can be ensured；Test bench running
During, oil pump 21 inhales lubricating oil by oil pipe III 11 from fuel tank 7, then by by oil pipe IV 18, oil pipe VI 50, three-way interface
I 54, the in-line of the composition of oil pipe VII 57, to the bearing block being made up of bearing block top I 58 and bearing block bottom I 16, and
Lubricating oil is supplied in the bearing block be made up of bearing block top II 53 and bearing block bottom II 24, through injection loop I 52, injection loop II
61 spray to bearing I 51 and bearing II 55, bearing III 60 and bearing IV 62 respectively；By bearing block top I 58 and bearing block bottom I
In lubricating oil in the bearing blocks of 16 compositions, and the bearing block being made up of bearing block top II 53 and bearing block bottom II 24
Lubricating oil, via oil pipe I 5, oil pipe V 19, oil pipe VII 65, three-way interface II 66 constitute return line inflow filter 2 in enter
Row filtering, then fuel tank 7 is flowed back to by oil pipe II 6；After the completion of experiment, motor 4 and oil pump 21 are closed, and reversely rotate screw thread loading
Bar 44 is with unloading.
Claims (5)
1. a kind of force feed high speed roller bearing testing stand, by base, filter, oil pump, fuel tank, oil pipe I, oil pipe II, oil
Pipe III, oil pipe IV, oil pipe V, oil pipe VI, oil pipe VII, three-way interface I, three-way interface II, motor, shaft coupling, rotating shaft, flat key I,
Flat key II, positioning shaft sleeve I, positioning shaft sleeve II, bearing I, bearing II, bearing III, bearing IV, load bearings, test bearing, oil spout
Ring I, injection loop II, bearing block bottom I, bearing block top I, bearing block bottom II, axle bed top II, test bearing seat bottom,
Test bearing seat top, loading axis bearing, snap ring I, snap ring II, round nut, bearing (ball) cover I, bearing (ball) cover II, bearing (ball) cover
IIIth, bearing (ball) cover IV, load bearings end cap I, load bearings end cap II, test bearing end cap I, test bearing end cap II, felt collar
Oil sealing I, felt collar oil sealing II, felt collar oil sealing III, felt collar oil sealing VI, felt collar oil sealing V, felt collar oil sealing VI, felt collar oil sealing VII, screw thread
Load bar, support, fastening bolt, packing ring etc. are constituted, it is characterised in that motor (4) is fixed on base (1) by fastening bolt I (3)
On；Shaft coupling (10) one end is connected by flat key I (9) with motor (4) output shaft, and the other end passes through flat key II (12) and rotating shaft
(36) it is connected；Bearing block bottom I (16), bearing block bottom II (24), test bearing seat bottom (33) pass through fastening bolt respectively
IV (15), fastening bolt VI (22), fastening bolt Ⅹ (34) are fixed on base (1)；On bearing block top I (58), bearing block
Portion II (53), test bearing seat top (40) passes through fastening bolt and bearing block bottom I (16), bearing block bottom II respectively
(24), test bearing seat bottom (33) is fixed together composition bearing block.
2. a kind of force feed high speed roller bearing testing stand according to claim 1, it is characterised in that：Bearing III (60)
Inner ring and rotating shaft (36) be interference fit, its end face is simultaneously engaged with the positioning shaft shoulder of rotating shaft (36)；Injection loop II (61) with
Rotating shaft (36) coordinates for gap；The inner ring of bearing IV (62) and rotating shaft (36) are interference fit, and carry out axle by snap ring II (63)
To fixation；The outer ring of bearing IV (62), the outer ring of bearing III (60) and its inner hole of bearing seat form interference fit；Bearing (ball) cover I
(14), bearing (ball) cover II (17) compresses outer ring, the outer ring of bearing III (60) of bearing IV (62) respectively, and by fastening bolt III
(13) be fixed on its bearing block, and packing ring be provided with its cooperation, bearing (ball) cover I (14), the endoporus of bearing (ball) cover II (17) with
Rotating shaft (36) coordinates for gap；Felt collar oil sealing VII (64), felt collar oil sealing VI (59) are respectively embedded into bearing (ball) cover I (14), bearing end
In the dovetail groove of lid II (17), felt collar oil sealing VII (64), the endoporus of felt collar oil sealing VI (59) are engaged to form close with rotating shaft (36)
Envelope；The inner ring of bearing II (55) and rotating shaft (36) are interference fit, and its end face is engaged with the positioning shaft shoulder of rotating shaft (36)；Oil spout
Ring I (52) is with rotating shaft (36) for gap coordinates；The inner ring of bearing I (51) and rotating shaft (36) they are interference fit, and by snap ring I (49)
Carry out axial restraint；The outer ring of bearing II (55), the outer ring of bearing I (51) and interference fit is formed by its inner hole of bearing seat；Axle
Socket end lid III (23), bearing (ball) cover IV (26) compress outer ring, the outer ring of bearing I (51) of bearing II (55) respectively, and by fastening
Bolt VII (25) is fixed on its bearing block, and packing ring is provided with its cooperation, bearing (ball) cover III (23), bearing (ball) cover IV (26)
Endoporus is with rotating shaft (36) for gap coordinates；Felt collar oil sealing V (56), felt collar oil sealing VI (48) be respectively embedded into bearing (ball) cover III (23),
In the dovetail groove of bearing (ball) cover IV (26), felt collar oil sealing V (56), the endoporus of felt collar oil sealing VI (48) are engaged with rotating shaft (36)
Form sealing；It is arranged side by side by bearing III (60) and bearing IV (62), bearing I (51) is arranged side by side with bearing II (55) and constitutes two
To the structure type of bearing supported side by side rotating shaft.
3. a kind of force feed high speed roller bearing testing stand according to claim 1, it is characterised in that：Positioning shaft sleeve II
(46) it is interference fit with rotating shaft (36), its large end face is engaged with the positioning shaft shoulder of rotating shaft (36)；Load bearings (43) it is interior
Circle and positioning shaft sleeve II (46) are interference fit, and its end face is engaged with the flange of positioning shaft sleeve II (46)；Load bearings (43)
Outer ring and loading axis bearing (45) endoporus be interference fit；Load bearings end cap I (28), load bearings end cap II (30) with plus
Two end faces for carrying bearing (43) outer ring are engaged, and are fixed in loading axis bearing (45) by fastening bolt VIII (27), and its
Packing ring is provided with cooperation, load bearings end cap I (28), load bearings end cap II (30) are with rotating shaft (36) for gap coordinates；Felt collar
Oil sealing III (47), felt collar oil sealing II (42) are respectively embedded into load bearings end cap I (28), the dovetail groove of load bearings end cap II (30)
Interior, felt collar oil sealing III (47), the endoporus of felt collar oil sealing II (42) are engaged to form sealing with rotating shaft (36)；Support (29) is by tight
Fixing bolt is fixed on base (1), and screw thread load bar (44) and support (29) are that screw thread is connected, the pushing tow head of its lower end with
The outer ring of load bearings (43) is engaged, and constitutes loading device.
4. a kind of force feed high speed roller bearing testing stand according to claim 1, it is characterised in that：Positioning shaft sleeve I
(39) it is interference fit with rotating shaft (36), its large end face is engaged with the positioning shaft shoulder of rotating shaft (36)；The inner ring of test bearing 38
It is interference fit with positioning shaft sleeve I (39), its end face is engaged with the flange of positioning shaft sleeve I (39), and is entered by round nut (37)
Row axial restraint；The outer ring of test bearing (38) forms interference fit with its inner hole of bearing seat；Test bearing end cap I (32), examination
Test bearing (ball) cover II (35) to be engaged with two end faces of the outer ring of test bearing 38, and its axle is fixed on by fastening bolt Ⅸ (31)
Packing ring is provided with bearing, and at its cooperation, endoporus and the rotating shaft (36) of test bearing end cap I (32) are gap cooperation；Felt collar oil
In the dovetail groove of the embedded test bearing end cap I (32) of envelope I (41), the endoporus of felt collar oil sealing I (41) is engaged shape with rotating shaft (36)
Into sealing.
5. a kind of force feed high speed roller bearing testing stand according to claim 1, it is characterised in that：Filter 2, oil
Case 7, oil pump 21 are fixed on base 1 by fastening bolt respectively；The inlet port of oil pump 21 is fuel-displaced with fuel tank 7 by oil pipe III 11
Mouth is connected；The middle port of three-way interface I 54 is connected by oil pipe IV 18 with the force feed mouthful of oil pump 21, and its second mouthful passes through oil pipe VI
50 are connected with the oil inlet on the boss of bearing block top II 53, and its 3rd mouthful by oil pipe VII 57 and the boss of bearing block top I 58
On oil inlet be connected；The middle port of three-way interface II 66 is by the oil-out on oil pipe VII 65 and the side of bearing block bottom I 16
It is connected, its second mouthful is connected by oil pipe V 19 with the oil-out on the side of bearing block bottom II 24, its 3rd mouthful passes through oil pipe I
5 are connected with the oil inlet of filter 2；The oil-out of filter 2 is connected by oil pipe II 6 with the oil inlet of fuel tank 7；By filter
2nd, the oil feeding device of fuel tank 7, oil pump 21, three-way interface I 54, three-way interface II 66 and oil pipe composition realizes lubricating oil
Down cycles are utilized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110159739A (en) * | 2018-02-12 | 2019-08-23 | 比亚迪股份有限公司 | Power assembly and vehicle with it |
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