CN109470479A - Large-diameter sliding bearing group tribological property testing stand adjustable in pitch under dynamic loading - Google Patents
Large-diameter sliding bearing group tribological property testing stand adjustable in pitch under dynamic loading Download PDFInfo
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- CN109470479A CN109470479A CN201811606152.0A CN201811606152A CN109470479A CN 109470479 A CN109470479 A CN 109470479A CN 201811606152 A CN201811606152 A CN 201811606152A CN 109470479 A CN109470479 A CN 109470479A
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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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Abstract
The present invention relates to large-diameter sliding bearing group tribological property testing stands adjustable in pitch under a kind of dynamic loading, belong to sliding bearing tribological property testing stand.Testing stand lifting bearing device is fixed on testing stand pedestal, and dynamic and hydrostatic bearing auxiliary device is fixed in the bearing of testing stand liftable, and hydraulic loading device is fixed on dynamic and hydrostatic bearing auxiliary device, and power output system is fixed on the boss of testing stand pedestal.Advantage is: realizing the measurement to sliding bearing tribological property, compensates for the deficiency that most of conventional slip bearing friction testing stands make corresponding simulation test with being unable to fully according to different bearing parameters and loading environment.It can effectively ensure that friction mechanism, wear form, working performance that sliding bearing test specimen generates during the test etc. is consistent with actual use, so as to accurately test the various performance parameters of sliding bearing, provide guiding test data for engineer application.
Description
Technical field
The present invention relates to sliding bearing tribological property testing stands, and for being greater than 200mm to internal diameter, revolving speed is greater than 3000r/
Sliding bearing under min operating condition, under different size, different bearing spacing conditions, realization tests its tribological property.
Background technique
Sliding bearing is identical as rolling bearing function but application is different, and two kinds of bearings have the function of support,
But sliding bearing under some conditions and is not suitable for, such as the starting friction resistance of sliding bearing is larger, occupies kinetic equation loss
In more considerable a part, and use environment is required it is harsher, so rolling bearing must apply it is more commonplace.
But the application of sliding bearing is required in certain special circumstances such as just in the case that axial load is very big, because
The tribological property of this research sliding bearing is the premise for preferably applying sliding bearing.
There is much the research of sliding bearing tribological property in the country, as low-speed heave-load grease lubrication sliding bearing drags spy
Property testing stand development and experimental study, dynamic and static back sliding bearing performance evaluation, sliding bear experiment device exploitation with oil
Film pressure measurement, the development of sliding bearing experimental platform and rock bit inlay the bench test of sliding bearing friction and wearing performance.
Currently have many sliding bearing tribological test platforms both at home and abroad but because technical reason or design careless omission have certain limitation
Property, cause loading force that cannot be loaded into any position as loading structure is unreasonable, is only able to achieve dynamic pressure because oil circuit design is unreasonable
Or the tribology experiments of hydrostatic bearing, cause adaptable sliding bearing diameter range too small because guide rail can not adjust, because of electricity
Machine select it is unreasonable cause the range of speeds that can be tested greatly to be limited, and only be arranged a sliding bearing installation
Position leads to the applying working condition that cannot restore sliding bearing completely.
Current computer technology is maked rapid progress, and is technical field the most active, various internets+emerge one after another,
And combining with tradition machinery industry computer technology makes mechanical observation and control technology achieve significant progress, and microelectronics skill
The appearance of art is even more to keep the development of sensor further strengthened.With the development of above-mentioned technology, various experimental systems are also towards intelligence
Change, miniaturization, precise treatment, automation direction develop.Novel sliding bearing friction performance test stand since in the recent period is most
It is to use hydraulic loaded, because hydraulic loaded is relatively stable and biggish loading force may be implemented, some relatively advanced tests
Platform uses integrated control system, to simplify the reliability of the design of system and the modular incremental system of realization system.Closely
Over year the computer aided test system that occurs more preferably realize human-computer interaction so that user has better operating experience,
The acquisition of experimental data, analysis, processing more intelligence are easy, enable user that can directly extract information from test, moreover it is possible to carry out
The analysis processing of experimental data can be bent in computer end real-time display speed of mainshaft curve, main shaft torque curve, oil film Temperature Distribution
Line, oil film pressure distribution curve etc..
Summary of the invention
The present invention provides large-diameter sliding bearing group tribological property testing stand adjustable in pitch under a kind of dynamic loading, with solution
Certainly current tribological property experimental provision loading structure is unreasonable, adjusting range is smaller, it is not accurate enough to simulate to actual condition
The problem of.It can be carried out the measurement to tribological property of plurality of specifications sliding bearing and sliding bearing under different rotating speeds, and
And it may be implemented to simulate stress condition in sliding bearing actual condition to the full extent.It is realized according to different sliding bearings
And rotating speed of transmission shaft makes corresponding simulated experiment and achievees the purpose that repeatedly to measure and improve measurement accuracy.
The technical solution adopted by the present invention is that: including power output device, hydraulic loading device, dynamic and hydrostatic bearing auxiliary dress
It sets, testing stand Liftable supporting device, testing stand pedestal, wherein testing stand lifting bearing device is fixed on testing stand pedestal
On, dynamic and hydrostatic bearing auxiliary device is fixed in the bearing of testing stand liftable, and it is auxiliary that hydraulic loading device is fixed on dynamic and hydrostatic bearing
It helps on device, power output system is fixed on the boss of testing stand pedestal；
Power output device of the present invention includes frequency control threephase asynchronous machine, the first flexible sheet shaft coupling, turns
Fast torque sensor, central axis, frequency-conversion alternating current motor pedestal, torque and speed sensors bracket, turns the second flexible sheet shaft coupling
Fast torque sensor bracket base, wherein variable-frequency motor pedestal is fixed on bottom plate cabinet by foundation bolt, frequency control three
Phase Induction Machines are fixed on alternating-current variable frequency power machine base by foundation bolt, and torque and speed sensors bracket base passes through lower margin
Bolt is fixed on the boss of testing stand pedestal, and torque and speed sensors bracket is fixed on rotational speed and torque by foundation bolt and senses
On device bracket base, torque and speed sensors are placed on torque and speed sensors bracket, and the first flexible sheet shaft coupling is actively
End is connected on the output shaft of frequency control threephase asynchronous machine, and torque and speed sensors left end is connected to the first flexible sheet connection
Axis device driven end, the second flexible sheet shaft coupling powered phase are connected to the right end of torque and speed sensors, the connection of central axis left end
In the second flexible sheet shaft coupling driven end.
Hydraulic loading device of the present invention includes pressurizing device, pressurization platform, and it is flat that pressurizing device is fixedly connected on pressurization
Above platform, the pressurization platform includes the first guide rail slide block, hydraulic cylinder output flange retainer, load cylinder support platform, the
Two guide rail slide blocks；The pressurizing device adds including jacking load cylinder, hydraulic cylinder output flange, load bearings box body, first
Carry bearing axis, the second load bearings axis, the first biserial deep groove ball bearing, the second biserial deep groove ball bearing, the first load bearings axis
Axle sleeve, the second load bearings axis axle sleeve, the first loading axis bearing sleeve, the second loading axis bearing sleeve, the first load bearings hubcap, second
Load bearings hubcap, third load bearings hubcap, the 4th load bearings hubcap；Wherein: the first load bearings hubcap,
Second load bearings hubcap, third load bearings hubcap, the 4th load bearings hubcap are fixed by tight fixed bolt respectively
In load bearings box body, load cylinder is jacked by tight fixed bolt and is fixed on load cylinder support；The assembly of first guide rail slide block
In the first straight line guide rail of linear guide table, the second guide rail slide block is assemblied on second straight line guide rail, the first guide rail slide block,
Milling is milled with and the first guide rail slide block, the second guide rail slide block there are four counter sink in load cylinder support platform on two guide rail slide blocks
The corresponding through-hole of upper eight counter sinks, with fluting tight fixed bolt connection, jacking load cylinder passes through the holding of hydraulic cylinder output flange
Frame is fixedly connected with load cylinder support platform, jacks load cylinder output shaft connection liquid cylinder pressure output flange, hydraulic cylinder output
Flange connects load bearings cabinet by tight fixed bolt, and the first load bearings axis is horizontal positioned, is placed in left side with shaft shoulder one end,
First biserial deep groove ball bearing is inserted in the first load bearings axis from right to left, loads on the left of the first biserial deep groove ball bearing with first
Shaft shoulder fitting, the first load bearings axis axle sleeve are inserted in the first load bearings axis, the first load bearings from right to left on the right side of bearing axis
It is bonded on the left of axis axle sleeve on the right side of the first biserial deep groove ball bearing, it is left that the first load bearings axis is from top to bottom placed in load bearings case
The axis hole reserved in cabinet, the first load bearings hubcap fit in load bearings case left box body axis hole from right to left, pass through six
A tight fixed bolt connection, the second load bearings hubcap fit in load bearings case left box body axis hole from left to right, pass through six
Tight fixed bolt connection, the second load bearings end cap is as the first load bearings axis axially position；Second load bearings axis level is put
It sets, is placed on left side with the shaft shoulder one, the second biserial deep groove ball bearing is inserted in the second load bearings axis, the second biserial from right to left
It is bonded on the left of deep groove ball bearing with the shaft shoulder on the right side of the second load bearings axis, the second load bearings axis axle sleeve is inserted in second from left to right
It is bonded on the right side of load bearings axis, the second load bearings axis left side and the second biserial deep groove ball bearing, the second load bearings axis is by upper
The axis hole reserved in load bearings case right case is placed under, third load bearings end cap fits in load bearings case from right to left
Right case axis hole is connected by six tight fixed bolts, and the 4th load bearings end cap is bonded and the right case of load bearings case from left to right
Body axis hole is connected by six tight fixed bolts, and the 4th load bearings end cap is as the second load bearings axis axially position.
Dynamic and hydrostatic bearing auxiliary device of the present invention includes linear guide table, first straight line guide rail, second straight line
Guide rail, the first guide rail slide block, the second guide rail slide block, third guide rail slide block, the 4th guide rail slide block, the 5th guide rail slide block, the 6th lead
It is flat that rail sliding block, the 7th guide rail slide block, the 8th guide rail slide block, first sliding axle hold seat supports platform, second sliding axle holds seat supports
Platform, first sliding axle hold seat, second sliding axle holds seat, first sliding axle is held, second sliding axle is held；Wherein linear guide table bottom
Portion is cast with first boss, second boss, third boss, the 4th boss, and there are four threaded holes for milling at the top of each boss, with worm gear
Four lead to the hole site at the top of screw lift are corresponding, are bolted, and it is straight that first is milled at the top of linear guide table
Line guide rail mounting groove, second straight line guide rail mounting groove, are milled with threaded hole at the top of linear guide mounting groove, by first straight line respectively
Guide rail is mounted on first straight line guide rail mounting groove, and second straight line guide rail is mounted on second straight line guide rail mounting groove, is used in combination
Tight fixed bolt of slotting connects, and the second guide rail slide block, third guide rail slide block are assemblied in respectively on first straight line guide rail, and the first guide rail is sliding
Assigned on second straight line guide rail, it is sliding with the second guide rail respectively that first sliding axle holds seat supports platform lower for block, the 4th guide rail slide block
Block, third guide rail slide block, the first guide rail slide block, the 4th guide rail slide block are fixedly connected, and first sliding axle holds seat and first sliding axle
It holds and is fixedly connected above seat supports platforms, first sliding axle, which is held, holds seat with first sliding axle and be fixedly connected；5th guide rail slide block,
Seven guide rail slide blocks are assemblied in respectively on first straight line guide rail, and the 6th guide rail slide block, the 8th guide rail slide block are assemblied in second straight line and lead
On rail, second sliding axle hold seat supports platform lower respectively with the 5th guide rail slide block, the 7th guide rail slide block, the 6th guide rail slide block,
8th guide rail slide block dress is fixedly connected, and second sliding axle, which holds seat and second sliding axle and holds seat supports platform top, to be fixedly connected, the
Two sliding bearings hold seat with second sliding axle and are fixedly connected；
Testing stand bearing of the present invention includes the first Worm gear feed screw elevator, the first elastic dowel pin shaft coupling, second
Elastic dowel pin shaft coupling, the second Worm gear feed screw elevator, third elastic dowel pin shaft coupling, the first T-type steering box, the 4th elastic
Sell shaft coupling, the 5th elastic dowel pin shaft coupling, worm type of reduction gearing, worm type of reduction gearing pedestal, motor base, frequency conversion tune
Fast threephase asynchronous machine, the 6th elastic dowel pin shaft coupling, the 7th elastic dowel pin shaft coupling, the second T-type steering box, the 8th elastic
Sell shaft coupling, third Worm gear feed screw elevator, the 9th elastic dowel pin shaft coupling, the tenth elastic dowel pin shaft coupling, the 4th worm gear silk
Bar elevator, the first elastic dowel pin shaft coupling drive end, wherein threephase asynchronous machine pedestal and worm type of reduction gearing pedestal are logical
It crosses foundation bolt to be fixed on testing stand pedestal, worm type of reduction gearing is fixed on worm type of reduction gearing bottom by foundation bolt
On seat, frequency control threephase asynchronous machine is fixed on threephase asynchronous machine pedestal by foundation bolt, first worm gear
The lower part of screw lift is divided into cylinder base plate structure, and uniformly distributed there are six through-holes, and six T-bolts pass through through-hole can be by worm gear
Screw lift is fixed on bottom plate, and the first elastic dowel pin shaft coupling drive end is fixed on the output of frequency control threephase asynchronous machine
End, Worm gear feed screw retarder input terminal are connected to the driven end of elastic dowel pin shaft coupling, the active of the second elastic dowel pin shaft coupling
End is connected to the left output end of worm type of reduction gearing, and the drive end of third elastic dowel pin shaft coupling is connected to the by transmission shaft
The input terminal of the driven end of two elastic dowel pin shaft couplings, the first T-type steering box is connected to the driven of third elastic dowel pin shaft coupling
End, the 4th elastic dowel pin shaft coupling drive end are connected to first the first output end of T-type steering box, the second Worm gear feed screw elevator snail
Bar right end is connected to the driven end of the 4th elastic dowel pin shaft coupling, and the drive end of the 5th elastic dowel pin shaft coupling is connected to the second snail
The left end of screw lift worm screw is taken turns, the drive end of the 6th elastic dowel pin shaft coupling is connected to the 5th spring column pin by transmission shaft
The right end of the driven end of shaft coupling, the first Worm gear feed screw elevator worm screw is connected to the driven end of the 6th elastic dowel pin shaft coupling,
The drive end of 7th elastic dowel pin shaft coupling is connected to the right output end of worm type of reduction gearing, the 8th elastic dowel pin shaft coupling
Drive end is connected to the driven end of the 7th elastic dowel pin shaft coupling by transmission shaft, and the input terminal of the second T-type steering box is connected to
The driven end of 8th elastic dowel pin shaft coupling, it is defeated that the 9th elastic dowel pin shaft coupling drive end is connected to the second T-type steering box first
Outlet, third Worm gear feed screw elevator worm screw right end are connected to the driven end of the 9th elastic dowel pin shaft coupling, the tenth spring column pin
The drive end of shaft coupling is connected to the left end of Worm gear feed screw elevator worm screw, and the drive end of the 11st elastic dowel pin shaft coupling passes through
Transmission shaft is connected to the driven end of the tenth elastic dowel pin shaft coupling, and the right end of the 4th Worm gear feed screw elevator worm screw is connected to the tenth
The driven end of one elastic dowel pin shaft coupling；
Worm gear feed screw elevator of the present invention includes housing plate, the first cabinet tapered roller bearing, the second cabinet circle
Taper roller bearing, lifting worm gear, elevating screw, cabinet, input shaft, the first input shaft end cap, the second input shaft end cap, the first oil
Envelope, the second oil sealing, the first input shaft tapered roller bearing, the second input shaft tapered roller bearing, the first input shaft bearing gasket,
Two input shaft bearing gaskets；Wherein, cabinet is fixed on testing stand pedestal by foundation bolt, the first cabinet tapered roller bearing from
Up to trapping on lifting worm gear, contacted with the upper shaft shoulder of worm gear shaft, the second cabinet tapered roller bearing covers from bottom to up to be risen
It drops on worm gear, is touched with the lower axle shoulder grafting of worm gear shaft, the first cabinet tapered roller bearing, the second cabinet tapered roller bearing, lifting
Turbine is put into cabinet as a whole, and the second cabinet tapered roller bearing lower part is bonded with cabinet bearing hole shoulder, elevating screw
Screw in lifting worm gear screw hole in, cabinet end cover screw is connected on cabinet, on the first cabinet tapered roller bearing along with
Housing plate gos deep into the edge contact of bearing hole, and it is defeated that the first input shaft tapered roller bearing covers on input shaft first from left to right
Enter and be bonded on the right side of axis tapered roller bearing with the shaft shoulder on the left of input shaft, the first input shaft bearing gasket is covered from left to right in input shaft
On, it being bonded with the first input tapered roller bearing left side, the second input shaft tapered roller bearing covers on input shaft from right to left,
It is bonded on the left of second input shaft tapered roller bearing with the shaft shoulder on the right side of input shaft, the second input shaft bearing gasket is covered from right to left
On input shaft, it is bonded with the second input tapered roller bearing right side, input shaft worm and wheel engagement, the first oil sealing is mounted in first
Input shaft end cap, the first input shaft end cap are covered on input shaft from left to right, are fixed on cabinet by hex screw, the second oil
It is encapsulated in the second input shaft end to cover, the second input shaft end cap covers on input shaft from right to left, is fixed on by hex screw
On cabinet.
T-type steering box of the present invention includes base, horizontal axis seat, horizontal axis, the longitudinal axis, horizontal axis bevel gear, longitudinal axis bevel gear,
One end cap, second end cover, third end cap, the first tapered roller bearing, the second tapered roller bearing, third tapered roller bearing,
4th tapered roller bearing, bevel gear baffle, wherein horizontal axis, the longitudinal axis are connected on transmission shaft by elastic dowel pin shaft coupling, are indulged
Shaft bevel gears cover on longitudinal axis from right to left, and to the left, bevel gear right side is bonded the cone flank of tooth with the horizontal axis shaft shoulder, the 4th taper roller
Bearing covers on longitudinal axis from left to right, and tapered roller bearing left side is bonded by gasket with bevel gear right side, third end cap
It covers from left to right on longitudinal axis, axially position of the end cap as the 4th tapered roller bearing, it is logical that third end cap is nested in the base right side
It in hole, is fixed on the machine seat by six tight fixed bolts, third tapered roller bearing is covered from left to right in the longitudinal axis, the rolling of third circular cone
Sub- bearing right end is bonded with longitudinal axis left axle shoulder, and second end cover covers on transverse axis from left to right, and end cap is as third taper roller axis
The axially position held, second end cover are nested in the left through-hole of base, are fixed on pedestal by six tight fixed bolts, the first circular cone
Roller bearing is inserted in horizontal axis from bottom to up, is bonded with the shaft shoulder on horizontal axis, the first tapered roller bearing together with horizontal axis from top to bottom
Be inserted in horizontal axis seat, the first tapered roller bearing upper surface is bonded with the shaft shoulder inside horizontal axis seat, the second tapered roller bearing from up to
Under be inserted in the longitudinal axis, the upper shaft shoulder is bonded inside the second tapered roller bearing lower end surface and horizontal axis seat, and bearing shim is inserted in from top to bottom
The longitudinal axis, bearing shim are bonded with the second tapered roller bearing upper surface, and horizontal axis bevel gear is inserted in horizontal axis, bevel gear cone from top to bottom
Increment is upward, and bevel gear lower end is bonded with bearing shim, and horizontal axis seat is nested in base front through hole, solid by six tight fixed bolts
Due on base, first end cover is nested in horizontal axis seat exit orifice, and oil sealing is installed between first end cover and horizontal axis, passes through six tightenings
Bolt is fixed on horizontal axis seat.
The invention has the advantages that
The present invention is realized by rationally designing and building sliding bearing tribological test platform to sliding bearing tribology
Can measurement, compensate for most of conventional slip bearing friction testing stands be unable to fully according to different bearing parameters and load
Condition makes the deficiency of corresponding simulation test.
The present invention is by design driven device, the preferably alternating current generator of second level frequency conversion and corresponding connection alternating current out
The flexible sheet shaft coupling of machine, torque rotary speed sensor and central axis is realized to the complete of high speed and high speed needed for test
Face covering.
The present invention solves the problems, such as that central axis is difficult to dynamically load, compensates for most of examinations by design loading device
Test the deficiency that platform loading device can only load for the central axis of the single diameter of axle and can not realize dynamically load to transmission shaft.
The present invention is realized convenient for disposing multiple loading device modules to center by the modularized design to loading device
The multipoint excitation of axis.
The present invention is realized to sliding bearing by designing dynamic and hydrostatic bearing auxiliary device relative to the fast of cental axial position
Velocity modulation section, it is common to complete to the complete of practical institute's excited target of sliding bearing in conjunction with the upper central axis multipoint excitation
Face mould is quasi-.
The present invention has reached examination using four-axle linked Worm gear feed screw lifting device by rationally designing testing stand support device
The purpose of platform integral elevating, the tribological property test of the sliding bearing of achievable larger diameter range are tested, and power output fills
Fixation is set, can reach higher test accuracy.
The present invention can effectively ensure that the friction mechanism that sliding bearing test specimen generates during the test, wear form, work
Performance etc. is consistent with actual use, so as to accurately test the various performance parameters of sliding bearing, provides for engineer application
Guiding test data.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of power device of the present invention；
Fig. 3 is the structural schematic diagram of hydraulic loading device of the present invention；
Fig. 4 is the perspective view of pressurizing device of the present invention；
Fig. 5 is the main view of pressurizing device of the present invention；
Fig. 6 is the A-A partial sectional view of Fig. 5；
Fig. 7 is the structural schematic diagram of present invention pressurization platform；
Fig. 8 is the structural schematic diagram of dynamic and hydrostatic bearing auxiliary device of the present invention；
Fig. 9 is the top view of dynamic and hydrostatic bearing auxiliary device of the present invention；
Figure 10 is the structural schematic diagram of testing stand Liftable supporting device of the present invention；
Figure 11 is the partial view of testing stand Liftable supporting device of the present invention；
Figure 12 is the structural schematic diagram of the first Worm gear feed screw elevator of the invention；
Figure 13 is the left view of Figure 12；
Figure 14 is the cross-sectional view of the first T-type steering box of the invention；
Figure 15 is sliding bearing cross-sectional view used in sliding bearing tribological test of the present invention；
Figure 16 is the left view of Figure 15.
Specific embodiment
Referring to Fig. 1, including power output device 1, hydraulic loading device 2, dynamic and hydrostatic bearing auxiliary device 3, testing stand can
Liftable supporter 4, testing stand pedestal 5, testing stand lifting bearing device 4 are fixed on testing stand pedestal 5, dynamic and hydrostatic bearing
Auxiliary device 3 is fixed in testing stand liftable bearing 4, and hydraulic loading device 2 is fixed on dynamic and hydrostatic bearing auxiliary device 3,
Power output system 1 is fixed on the boss of testing stand pedestal 5；
Referring to fig. 2, the power output device 1 includes frequency control threephase asynchronous machine 101, the first flexible sheet shaft coupling
Device 103, torque and speed sensors 104, the second flexible sheet shaft coupling 107, central axis 108, frequency-conversion alternating current motor pedestal 102,
Torque and speed sensors bracket 105, torque and speed sensors bracket base 106, wherein variable-frequency motor pedestal 102 passes through lower margin
Bolt is fixed on bottom plate cabinet, and frequency control threephase asynchronous machine 101 is fixed on alternating-current variable frequency motor bottom by foundation bolt
On seat 102, torque and speed sensors bracket base 106 is fixed on the boss of testing stand pedestal 5 by foundation bolt, and revolving speed turns
Square sensor stand 105 is fixed on torque and speed sensors bracket base 106 by foundation bolt, torque and speed sensors
104 are placed on torque and speed sensors bracket 105, and 103 drive end of the first flexible sheet shaft coupling is connected to frequency control three
On the output shaft of phase Induction Machines 101, it is driven that 104 left end of torque and speed sensors is connected to the first flexible sheet shaft coupling 103
End, 107 powered phase of the second flexible sheet shaft coupling are connected to the right end of torque and speed sensors 107, the connection of 108 left end of central axis
In 107 driven end of the second flexible sheet shaft coupling.
Referring to Fig. 3,4,5,6,7, the hydraulic loading device 2 includes pressurizing device 201, pressurization platform 202, pressurizing device
201 are fixedly connected on 202 top of pressurization platform, and the pressurization platform 202 includes the first guide rail slide block 20201, hydraulic cylinder output
Flange retainer 20203, load cylinder support platform 20202, the second guide rail slide block 20204；The pressurizing device 201 includes top
Rise load cylinder 20101, hydraulic cylinder output flange 20102, load bearings box body 20103, the first load bearings axis 20106,
Second load bearings axis 20114, the first biserial deep groove ball bearing 20107, the load of the second biserial deep groove ball bearing 20112, first
Bearing axis axle sleeve 20105, the second load bearings axis axle sleeve 20111, the first loading axis bearing sleeve 20108, the second loading axis bearing sleeve
20115, the first load bearings hubcap 20104, the second load bearings hubcap 20109, third load bearings hubcap
20110, the 4th load bearings hubcap 20113；Wherein: the first load bearings hubcap 20104, the second load bearings hubcap
20109, third load bearings hubcap 20110, the 4th load bearings hubcap 20113 are fixed on by tight fixed bolt add respectively
Bearing box body 20103 is carried, jacking load cylinder 20101 is fixed on load cylinder support 20202 by tight fixed bolt；First leads
Rail sliding block 20201 is assemblied in the first straight line guide rail 302 of linear guide table, and it is straight that the second guide rail slide block 20204 is assemblied in second
On line guide rail 303, milling is there are four counter sink on the first guide rail slide block, the second guide rail slide block, in load cylinder support platform 20202
It is milled with through-hole corresponding with eight counter sinks on the first guide rail slide block, the second guide rail slide block, with fluting tight fixed bolt connection, jacking
Load cylinder 20101 passes through hydraulic cylinder output flange retainer 20203 and is fixedly connected with load cylinder support platform 20202, pushes up
Load cylinder output shaft connection liquid cylinder pressure output flange 20102 is risen, hydraulic cylinder output flange 20102 is added by tight fixed bolt connection
Bearing housing 20103 is carried, the first load bearings axis 20106 is horizontal positioned, is placed in left side, the first biserial zanjon with shaft shoulder one end
Ball bearing 20107 is inserted in the first load bearings axis 20105,20107 left side of the first biserial deep groove ball bearing and first from right to left
The fitting of the 20105 right side shaft shoulder of load bearings axis, the first load bearings axis axle sleeve 20106 are inserted in the first load bearings axis from right to left
20105, the left side of the first load bearings axis axle sleeve 20106 be bonded on the right side of the first biserial deep groove ball bearing 20107, the first loading axis
It holds axis 20105 and is from top to bottom placed in the axis hole reserved in load bearings case left box body, the first load bearings hubcap 20104 is from the right side
20103 left box body axis hole of load bearings case is fitted in a left side, is connected by six tight fixed bolts, the second load bearings hubcap
20109 fit in 20103 axis hole of load bearings case left box body from left to right, are connected by six tight fixed bolts, the second loading axis
Socket end lid 20109 is used as 20105 axially position of the first load bearings axis；Second load bearings axis 20114 is horizontal positioned, has axis
Shoulder one is placed on left side, and the second biserial deep groove ball bearing 20112 is inserted in the second load bearings axis 20114 from right to left, and second pair
20112 left side of column deep groove ball bearing is bonded with the 20114 right side shaft shoulder of the second load bearings axis, the second load bearings axis axle sleeve
20111 are inserted in the second load bearings axis 20114,20114 left side of the second load bearings axis and the second biserial deep-groove ball from left to right
It is bonded on the right side of bearing 20112, the second load bearings axis 20114 is from top to bottom placed in load bearings case right case 20103 and reserves
Axis hole, third load bearings end cap 20110 fits in 20103 right case axis hole of load bearings case from right to left, passes through six
Tight fixed bolt connection, the 4th load bearings end cap 20113 is bonded from left to right and 20103 right case axis hole of load bearings case, leads to
Six tight fixed bolt connections are crossed, the 4th load bearings end cap 20113 is used as 20114 axially position of the second load bearings axis.
Referring to Fig. 8,9, the dynamic and hydrostatic bearing auxiliary device 3 includes linear guide table 301, first straight line guide rail
302, second straight line guide rail 303, the first guide rail slide block 304, the second guide rail slide block 305, third guide rail slide block 306, the 4th guide rail
Sliding block 307, the 5th guide rail slide block 308, the 6th guide rail slide block 309, the 7th guide rail slide block 310, the 8th guide rail slide block 311, first
Plain bearing housing support platform 312, second sliding axle hold seat supports platform 313, first sliding axle holds seat 314, second sliding axle
Hold seat 315, first sliding axle holds 316, second sliding axle and holds 317；Wherein 301 bottom of linear guide table be cast with first boss,
Second boss, third boss, the 4th boss, there are four threaded holes for milling at the top of each boss, push up with Worm gear feed screw elevator 401
Four lead to the hole site in portion are corresponding, are bolted, and the installation of first straight line guide rail is milled at the top of linear guide table 301
Slot, second straight line guide rail mounting groove, are milled with threaded hole at the top of linear guide mounting groove respectively, first straight line guide rail 302 are pacified
On first straight line guide rail mounting groove, second straight line guide rail 303 is mounted on second straight line guide rail mounting groove, and with fluting
Tight fixed bolt connection, the second guide rail slide block 305, third guide rail slide block 306 are assemblied in respectively on first straight line guide rail 302, and first
Assigned on second straight line guide rail 303, first sliding axle is held under seat supports platform 312 for guide rail slide block 304, the 4th guide rail slide block 307
Portion is fixed with the second guide rail slide block 305, third guide rail slide block 306, the first guide rail slide block 304, the 4th guide rail slide block 307 respectively to be connected
Connect, first sliding axle is held seat 314 and held with first sliding axle to be fixedly connected above seat supports platform 312, first sliding axle hold 316 with
First sliding axle is held seat 314 and is fixedly connected；5th guide rail slide block 308, the 7th guide rail slide block 310 are assemblied in first straight line respectively and lead
On rail 302, the 6th guide rail slide block 309, the 8th guide rail slide block fill 311 assigned on second straight line guide rail 303, and second sliding axle holds seat
313 lower part of support platform respectively with the 5th guide rail slide block 308, the 7th guide rail slide block 310, the 6th guide rail slide block 309, the 8th guide rail
Sliding block fills 311 and is fixedly connected, and second sliding axle is held seat 315 and held with second sliding axle to be fixedly connected above seat supports platform 313, and
Two sliding bearings 317 hold seat 315 with second sliding axle and are fixedly connected；
Referring to Figure 10,11, the testing stand bearing 4 includes the first Worm gear feed screw elevator 401, the first spring column pin connection
Axis device 402, the second elastic dowel pin shaft coupling 403, the second Worm gear feed screw elevator 404, third elastic dowel pin shaft coupling 405,
One T-type steering box 406, the 4th elastic dowel pin shaft coupling 407, the 5th elastic dowel pin shaft coupling 408, worm type of reduction gearing 409,
Worm type of reduction gearing pedestal 410, motor base 411, frequency control threephase asynchronous machine 412, the 6th elastic dowel pin shaft coupling
413, the 7th elastic dowel pin shaft coupling 414, the second T-type steering box 415, the 8th elastic dowel pin shaft coupling 416, third Worm gear feed screw
Elevator 417, the 9th elastic dowel pin shaft coupling 418, the tenth elastic dowel pin shaft coupling 419, the 4th Worm gear feed screw elevator 420,
First elastic dowel pin shaft coupling drive end 421, wherein threephase asynchronous machine pedestal 411 and worm type of reduction gearing pedestal 410 are logical
It crosses foundation bolt to be fixed on testing stand pedestal 5, worm type of reduction gearing 409 is fixed on worm and gear by foundation bolt and slows down
On device pedestal 410, frequency control threephase asynchronous machine 412 is fixed on threephase asynchronous machine pedestal 411 by foundation bolt,
The lower part of the first Worm gear feed screw elevator 401 is divided into cylinder base plate structure, and uniformly distributed there are six through-hole, six T-bolts are worn
Worm gear feed screw elevator 401 can be fixed on bottom plate by crossing through-hole, and the first elastic dowel pin shaft coupling drive end 421 is fixed on frequency conversion
The output end of threephase asynchronous machine 412 is adjusted the speed, 409 input terminal of Worm gear feed screw retarder is connected to elastic dowel pin shaft coupling 421
The drive end of driven end, the second elastic dowel pin shaft coupling 408 is connected to the left output end of worm type of reduction gearing 409, third bullet
The drive end of property pin coupler 407 is connected to the driven end of the second elastic dowel pin shaft coupling 408, the first T-type by transmission shaft
The input terminal of steering box 406 is connected to the driven end of third elastic dowel pin shaft coupling 407, and the 4th elastic dowel pin shaft coupling 405 is main
Moved end is connected to 406 first output end of the first T-type steering box, and 404 right end of the second Worm gear feed screw elevator worm screw is connected to the 4th
The driven end of elastic dowel pin shaft coupling 405, the drive end of the 5th elastic dowel pin shaft coupling 403 are connected to the lifting of the second Worm gear feed screw
The drive end of the left end of machine worm screw 404, the 6th elastic dowel pin shaft coupling 402 is connected to the 5th spring column pin shaft coupling by transmission shaft
The driven end of device 403, the right end of 401 worm screw of the first Worm gear feed screw elevator be connected to the 6th elastic dowel pin shaft coupling 402 from
Moved end, the drive end of the 7th elastic dowel pin shaft coupling 413 are connected to the right output end of worm type of reduction gearing 409, the 8th elasticity
The drive end of pin coupler 414 is connected to the driven end of the 7th elastic dowel pin shaft coupling 413 by transmission shaft, and the second T-type turns
The driven end of the 8th elastic dowel pin shaft coupling 414 is connected to the input terminal of case 415, the 9th elastic dowel pin shaft coupling 416 is actively
End is connected to 415 first output end of the second T-type steering box, and 417 right end of third Worm gear feed screw elevator worm screw is connected to the 9th bullet
The driven end of property pin coupler 416, the drive end of the tenth elastic dowel pin shaft coupling 418 are connected to Worm gear feed screw elevator worm screw
The drive end of 417 left end, the 11st elastic dowel pin shaft coupling 419 is connected to the tenth elastic dowel pin shaft coupling by transmission shaft
418 driven end, the right end of the 4th Worm gear feed screw elevator worm screw 420 be connected to the 11st elastic dowel pin shaft coupling 419 from
Moved end；
The Worm gear feed screw elevator 401 includes housing plate 40105, the first cabinet tapered roller bearing 40109, second
Cabinet tapered roller bearing 40111, lifting worm gear 40110, elevating screw 40108, oil mirror, cabinet 40101, input shaft 40103,
First input shaft end cap 40102, the second input shaft end cap 40106, the first oil sealing, the second oil sealing, the first input shaft taper roller
Bearing 40104, the second input shaft tapered roller bearing 40107, the first input shaft bearing gasket, the second input shaft bearing gasket；Wherein,
Cabinet 40101 is fixed on testing stand pedestal 5 by foundation bolt, and the first cabinet tapered roller bearing 40109 covers from top to bottom
On lifting worm gear, contacted with the upper shaft shoulder of worm gear shaft 40108, the second cabinet tapered roller bearing 40111 covers from bottom to up
It goes up and down on worm gear 40110, is touched with the lower axle shoulder grafting of worm gear shaft 40108, the first cabinet tapered roller bearing 40109, the second cabinet
Tapered roller bearing 40111, lifting turbine 40110 are put into cabinet as a whole, under the second cabinet tapered roller bearing 40111
Portion is bonded with cabinet bearing hole shoulder, and elevating screw 40108 screws in the screw hole of lifting worm gear, and housing plate 40105 uses spiral shell
Nail is connected on cabinet 40101, and bearing hole is goed deep into housing plate 40105 in edge on the first cabinet tapered roller bearing 40109
Edge contact, the first input shaft tapered roller bearing 40104 cover the first input shaft circular cone on input shaft 40103 from left to right and roll
Sub- 40104 right side of bearing is bonded with the shaft shoulder on the left of input shaft, and the first input shaft bearing gasket is covered on input shaft from left to right, with
It is bonded on the left of first input tapered roller bearing 40104, the second input shaft tapered roller bearing 40107 covers from right to left to be inputted
On axis, the left side of the second input shaft tapered roller bearing 40107 is bonded with the input shaft right side shaft shoulder, by the second input shaft bearing gasket from
Right-to-left covers on input shaft 40103, with second input tapered roller bearing 40107 on the right side of be bonded, input shaft worm screw 40103 with
Worm gear 40110 engages, and the first oil sealing is mounted in the first input shaft end cap 40102, and the first input shaft end cap 40102 covers from left to right
It on input shaft 40103, is fixed on cabinet 40101 by hex screw, the second oil sealing is mounted in the second input shaft end cap 40106
On, the second input shaft end cap 40106 is covered from right to left on input shaft 40103, is fixed on cabinet 40101 by hex screw
On.
The T-type steering box 406 includes base 40611, horizontal axis seat 40604, horizontal axis 40601, the longitudinal axis 40608, horizontal axis cone
Gear 40606, longitudinal axis bevel gear 40612, first end cover 40602, second end cover 40609, third end cap 40614, the first circular cone
Roller bearing 40603, the second tapered roller bearing 40605, third tapered roller bearing 40610, the 4th tapered roller bearing
40613, bevel gear baffle 40607, wherein horizontal axis 40601, the longitudinal axis 40608 are connected to transmission shaft by elastic dowel pin shaft coupling
On, longitudinal axis bevel gear 40612 is covered from right to left on the longitudinal axis 40608, and to the left, bevel gear right side and the horizontal axis shaft shoulder paste the cone flank of tooth
Close, the 4th tapered roller bearing 40613 covers on longitudinal axis from left to right, 40613 left side of tapered roller bearing by gasket with
The fitting of 40612 right side of bevel gear, third end cap 40614 cover on longitudinal axis from left to right, and end cap 40614 is rolled as the 4th circular cone
The axially position of sub- bearing 40613, third end cap 40614 are nested in the right through-hole of base, are fixed on by six tight fixed bolts
On base, third tapered roller bearing 40610 is covered from left to right in the longitudinal axis 40608,40610 right end of third tapered roller bearing with
The fitting of 40608 left axle shoulder of the longitudinal axis, second end cover 40609 are covered from left to right on horizontal axis 40608, and end cap 40609 is as third circle
The axially position of taper roller bearing 40610, second end cover 40609 are nested in the left through-hole of base 40611, pass through six clamp screws
Bolt is fixed on pedestal 40611, and the first tapered roller bearing 40603 is inserted in horizontal axis 40601 from bottom to up, on horizontal axis 40601
Shaft shoulder fitting, the first tapered roller bearing 40603 are inserted in horizontal axis seat 40604, the first circular cone with horizontal axis 40601 from top to bottom together
40603 upper surface of roller bearing is bonded with the 40604 inside shaft shoulder of horizontal axis seat, and the second tapered roller bearing 40605 covers from top to bottom
Enter the longitudinal axis 40604,40605 lower end surface of the second tapered roller bearing is bonded with the shaft shoulder upper inside horizontal axis seat 40604, bearing shim from
The longitudinal axis 40601 is inserted under, bearing shim is bonded with 40605 upper surface of the second tapered roller bearing, horizontal axis bevel gear 40606
It is inserted in horizontal axis 40601 from top to bottom, the cone increment of bevel gear 40606 is upward, and 40606 lower end of bevel gear is bonded with bearing shim, horizontal
Axle bed 40604 is nested in base front through hole, is fixed on the machine seat by six tight fixed bolts, first end cover 40602 is nested in
In 40604 exit orifice of horizontal axis seat, oil sealing is installed between first end cover 40602 and horizontal axis 40601, is fixed on by six tight fixed bolts
On horizontal axis seat 40604.
Working principle: phase asynchronous variable-frequency motor 101 directly drives central axis 108 to rotate, and revolving speed is arrived in 3000r/min
6000r/min measures motor output torque and revolving speed by torque rotary speed sensor 104, by adjusting in hydraulic loading device 2
The loading force of hydraulic cylinder 20101 controls the radial force being loaded on central axis 108, by adjusting hydraulic loading device 2 in straight line
Position control on guide rail is loaded into the position of the radial force on central axis 108, is existed by adjusting dynamic and hydrostatic bearing auxiliary device 3
Position control sliding bearing in linear guide is in the position on central axis 108 and the relative position between sliding bearing pair, pressure
Force snesor is connected at each oil inlet of sliding bearing by triple valve, and temperature sensor is mounted on plain bearing housing, more
When changing the sliding bearing of the different diameters of axle, only testing stand liftable branch need to be driven by control frequency control threephase asynchronous machine 412
Support arrangement 4 can reach the purpose for being adapted to the different diameters of axle.
Claims (7)
1. large-diameter sliding bearing group tribological property testing stand adjustable in pitch under a kind of dynamic loading, it is characterised in that: including
Power output device, hydraulic loading device, dynamic and hydrostatic bearing auxiliary device, testing stand Liftable supporting device, testing stand pedestal,
Wherein testing stand lifting bearing device is fixed on testing stand pedestal, and dynamic and hydrostatic bearing auxiliary device is fixed on testing stand and can rise
Descending branch is held, and hydraulic loading device is fixed on dynamic and hydrostatic bearing auxiliary device, and power output system is fixed on testing stand pedestal
Boss on.
2. large-diameter sliding bearing group tribological property test adjustable in pitch under a kind of dynamic loading according to claim 1
Platform, it is characterised in that: the power output device includes frequency control threephase asynchronous machine, the first flexible sheet shaft coupling, turns
Fast torque sensor, central axis, frequency-conversion alternating current motor pedestal, torque and speed sensors bracket, turns the second flexible sheet shaft coupling
Fast torque sensor bracket base, wherein variable-frequency motor pedestal is fixed on bottom plate cabinet by foundation bolt, frequency control three
Phase Induction Machines are fixed on alternating-current variable frequency power machine base by foundation bolt, and torque and speed sensors bracket base passes through lower margin
Bolt is fixed on the boss of testing stand pedestal, and torque and speed sensors bracket is fixed on rotational speed and torque by foundation bolt and senses
On device bracket base, torque and speed sensors are placed on torque and speed sensors bracket, and the first flexible sheet shaft coupling is actively
End is connected on the output shaft of frequency control threephase asynchronous machine, and torque and speed sensors left end is connected to the first flexible sheet connection
Axis device driven end, the second flexible sheet shaft coupling powered phase are connected to the right end of torque and speed sensors, the connection of central axis left end
In the second flexible sheet shaft coupling driven end.
3. large-diameter sliding bearing group tribological property test adjustable in pitch under a kind of dynamic loading according to claim 1
Platform, it is characterised in that: the hydraulic loading device includes pressurizing device, pressurization platform, and it is flat that pressurizing device is fixedly connected on pressurization
Above platform, the pressurization platform includes the first guide rail slide block, hydraulic cylinder output flange retainer, load cylinder support platform, the
Two guide rail slide blocks；The pressurizing device adds including jacking load cylinder, hydraulic cylinder output flange, load bearings box body, first
Carry bearing axis, the second load bearings axis, the first biserial deep groove ball bearing, the second biserial deep groove ball bearing, the first load bearings axis
Axle sleeve, the second load bearings axis axle sleeve, the first loading axis bearing sleeve, the second loading axis bearing sleeve, the first load bearings hubcap, second
Load bearings hubcap, third load bearings hubcap, the 4th load bearings hubcap；Wherein: the first load bearings hubcap,
Second load bearings hubcap, third load bearings hubcap, the 4th load bearings hubcap are fixed by tight fixed bolt respectively
In load bearings box body, load cylinder is jacked by tight fixed bolt and is fixed on load cylinder support；The assembly of first guide rail slide block
In the first straight line guide rail of linear guide table, the second guide rail slide block is assemblied on second straight line guide rail, the first guide rail slide block,
Milling is milled with and the first guide rail slide block, the second guide rail slide block there are four counter sink in load cylinder support platform on two guide rail slide blocks
The corresponding through-hole of upper eight counter sinks, with fluting tight fixed bolt connection, jacking load cylinder passes through the holding of hydraulic cylinder output flange
Frame is fixedly connected with load cylinder support platform, jacks load cylinder output shaft connection liquid cylinder pressure output flange, hydraulic cylinder output
Flange connects load bearings cabinet by tight fixed bolt, and the first load bearings axis is horizontal positioned, is placed in left side with shaft shoulder one end,
First biserial deep groove ball bearing is inserted in the first load bearings axis from right to left, loads on the left of the first biserial deep groove ball bearing with first
Shaft shoulder fitting, the first load bearings axis axle sleeve are inserted in the first load bearings axis, the first load bearings from right to left on the right side of bearing axis
It is bonded on the left of axis axle sleeve on the right side of the first biserial deep groove ball bearing, it is left that the first load bearings axis is from top to bottom placed in load bearings case
The axis hole reserved in cabinet, the first load bearings hubcap fit in load bearings case left box body axis hole from right to left, pass through six
A tight fixed bolt connection, the second load bearings hubcap fit in load bearings case left box body axis hole from left to right, pass through six
Tight fixed bolt connection, the second load bearings end cap is as the first load bearings axis axially position；Second load bearings axis level is put
It sets, is placed on left side with the shaft shoulder one, the second biserial deep groove ball bearing is inserted in the second load bearings axis, the second biserial from right to left
It is bonded on the left of deep groove ball bearing with the shaft shoulder on the right side of the second load bearings axis, the second load bearings axis axle sleeve is inserted in second from left to right
It is bonded on the right side of load bearings axis, the second load bearings axis left side and the second biserial deep groove ball bearing, the second load bearings axis is by upper
The axis hole reserved in load bearings case right case is placed under, third load bearings end cap fits in load bearings case from right to left
Right case axis hole is connected by six tight fixed bolts, and the 4th load bearings end cap is bonded and the right case of load bearings case from left to right
Body axis hole is connected by six tight fixed bolts, and the 4th load bearings end cap is as the second load bearings axis axially position.
4. large-diameter sliding bearing group tribological property test adjustable in pitch under a kind of dynamic loading according to claim 1
Platform, it is characterised in that: the dynamic and hydrostatic bearing auxiliary device includes linear guide table, first straight line guide rail, second straight line
Guide rail, the first guide rail slide block, the second guide rail slide block, third guide rail slide block, the 4th guide rail slide block, the 5th guide rail slide block, the 6th lead
It is flat that rail sliding block, the 7th guide rail slide block, the 8th guide rail slide block, first sliding axle hold seat supports platform, second sliding axle holds seat supports
Platform, first sliding axle hold seat, second sliding axle holds seat, first sliding axle is held, second sliding axle is held；Wherein linear guide table bottom
Portion is cast with first boss, second boss, third boss, the 4th boss, and there are four threaded holes for milling at the top of each boss, with worm gear
Four lead to the hole site at the top of screw lift are corresponding, are bolted, and it is straight that first is milled at the top of linear guide table
Line guide rail mounting groove, second straight line guide rail mounting groove, are milled with threaded hole at the top of linear guide mounting groove, by first straight line respectively
Guide rail is mounted on first straight line guide rail mounting groove, and second straight line guide rail is mounted on second straight line guide rail mounting groove, is used in combination
Tight fixed bolt of slotting connects, and the second guide rail slide block, third guide rail slide block are assemblied in respectively on first straight line guide rail, and the first guide rail is sliding
Assigned on second straight line guide rail, it is sliding with the second guide rail respectively that first sliding axle holds seat supports platform lower for block, the 4th guide rail slide block
Block, third guide rail slide block, the first guide rail slide block, the 4th guide rail slide block are fixedly connected, and first sliding axle holds seat and first sliding axle
It holds and is fixedly connected above seat supports platforms, first sliding axle, which is held, holds seat with first sliding axle and be fixedly connected；5th guide rail slide block,
Seven guide rail slide blocks are assemblied in respectively on first straight line guide rail, and the 6th guide rail slide block, the 8th guide rail slide block are assemblied in second straight line and lead
On rail, second sliding axle hold seat supports platform lower respectively with the 5th guide rail slide block, the 7th guide rail slide block, the 6th guide rail slide block,
8th guide rail slide block dress is fixedly connected, and second sliding axle, which holds seat and second sliding axle and holds seat supports platform top, to be fixedly connected, the
Two sliding bearings hold seat with second sliding axle and are fixedly connected.
5. large-diameter sliding bearing group tribological property test adjustable in pitch under a kind of dynamic loading according to claim 1
Platform, it is characterised in that: the testing stand bearing includes the first Worm gear feed screw elevator, the first elastic dowel pin shaft coupling, second
Elastic dowel pin shaft coupling, the second Worm gear feed screw elevator, third elastic dowel pin shaft coupling, the first T-type steering box, the 4th elastic
Sell shaft coupling, the 5th elastic dowel pin shaft coupling, worm type of reduction gearing, worm type of reduction gearing pedestal, motor base, frequency conversion tune
Fast threephase asynchronous machine, the 6th elastic dowel pin shaft coupling, the 7th elastic dowel pin shaft coupling, the second T-type steering box, the 8th elastic
Sell shaft coupling, third Worm gear feed screw elevator, the 9th elastic dowel pin shaft coupling, the tenth elastic dowel pin shaft coupling, the 4th worm gear silk
Bar elevator, the first elastic dowel pin shaft coupling drive end, wherein threephase asynchronous machine pedestal and worm type of reduction gearing pedestal are logical
It crosses foundation bolt to be fixed on testing stand pedestal, worm type of reduction gearing is fixed on worm type of reduction gearing bottom by foundation bolt
On seat, frequency control threephase asynchronous machine is fixed on threephase asynchronous machine pedestal by foundation bolt, first worm gear
The lower part of screw lift is divided into cylinder base plate structure, and uniformly distributed there are six through-holes, and six T-bolts pass through through-hole can be by worm gear
Screw lift is fixed on bottom plate, and the first elastic dowel pin shaft coupling drive end is fixed on the output of frequency control threephase asynchronous machine
End, Worm gear feed screw retarder input terminal are connected to the driven end of elastic dowel pin shaft coupling, the active of the second elastic dowel pin shaft coupling
End is connected to the left output end of worm type of reduction gearing, and the drive end of third elastic dowel pin shaft coupling is connected to the by transmission shaft
The input terminal of the driven end of two elastic dowel pin shaft couplings, the first T-type steering box is connected to the driven of third elastic dowel pin shaft coupling
End, the 4th elastic dowel pin shaft coupling drive end are connected to first the first output end of T-type steering box, the second Worm gear feed screw elevator snail
Bar right end is connected to the driven end of the 4th elastic dowel pin shaft coupling, and the drive end of the 5th elastic dowel pin shaft coupling is connected to the second snail
The left end of screw lift worm screw is taken turns, the drive end of the 6th elastic dowel pin shaft coupling is connected to the 5th spring column pin by transmission shaft
The right end of the driven end of shaft coupling, the first Worm gear feed screw elevator worm screw is connected to the driven end of the 6th elastic dowel pin shaft coupling,
The drive end of 7th elastic dowel pin shaft coupling is connected to the right output end of worm type of reduction gearing, the 8th elastic dowel pin shaft coupling
Drive end is connected to the driven end of the 7th elastic dowel pin shaft coupling by transmission shaft, and the input terminal of the second T-type steering box is connected to
The driven end of 8th elastic dowel pin shaft coupling, it is defeated that the 9th elastic dowel pin shaft coupling drive end is connected to the second T-type steering box first
Outlet, third Worm gear feed screw elevator worm screw right end are connected to the driven end of the 9th elastic dowel pin shaft coupling, the tenth spring column pin
The drive end of shaft coupling is connected to the left end of Worm gear feed screw elevator worm screw, and the drive end of the 11st elastic dowel pin shaft coupling passes through
Transmission shaft is connected to the driven end of the tenth elastic dowel pin shaft coupling, and the right end of the 4th Worm gear feed screw elevator worm screw is connected to the tenth
The driven end of one elastic dowel pin shaft coupling.
6. large-diameter sliding bearing group tribological property test adjustable in pitch under a kind of dynamic loading according to claim 5
Platform, it is characterised in that: Worm gear feed screw elevator of the present invention includes housing plate, the first cabinet tapered roller bearing, second
Cabinet tapered roller bearing, lifting worm gear, elevating screw, cabinet, input shaft, the first input shaft end cap, the second input shaft end cap,
First oil sealing, the second oil sealing, the first input shaft tapered roller bearing, the second input shaft tapered roller bearing, the first input shaft bearing
Gasket, the second input shaft bearing gasket；Wherein, cabinet is fixed on testing stand pedestal by foundation bolt, the rolling of the first cabinet circular cone
Sub- bearing cover from top to bottom lifting worm gear on, contacted with the upper shaft shoulder of worm gear shaft, the second cabinet tapered roller bearing from down toward
Upper set touches, the first cabinet tapered roller bearing, the second cabinet taper roller axis on lifting worm gear with the lower axle shoulder grafting of worm gear shaft
It holds, go up and down turbine and be put into cabinet as a whole, the second cabinet tapered roller bearing lower part is bonded with cabinet bearing hole shoulder, is risen
It drops screw rod to screw in the screw hole of lifting worm gear, cabinet end cover screw is connected on cabinet, the first cabinet tapered roller bearing
Upper edge is contacted with the edge that housing plate gos deep into bearing hole, and the first input shaft tapered roller bearing covers on input shaft from left to right
It is bonded on the right side of first input shaft tapered roller bearing with the shaft shoulder on the left of input shaft, the first input shaft bearing gasket is covered from left to right
On input shaft, it is bonded with the first input tapered roller bearing left side, the second input shaft tapered roller bearing is covered from right to left defeated
Enter on axis, be bonded on the left of the second input shaft tapered roller bearing with the input shaft right side shaft shoulder, by the second input shaft bearing gasket from the right side
To left set on input shaft, it is bonded with the second input tapered roller bearing right side, the engagement of input shaft worm and wheel, the first oil sealing
Mounted in the first input shaft end cap, the first input shaft end cap covers on input shaft from left to right, is fixed on cabinet by hex screw
On, the second oil sealing is covered mounted in the second input shaft end, and the second input shaft end cap covers on input shaft from right to left, passes through hexagonal spiral shell
Nail is fixed on cabinet.
7. large-diameter sliding bearing group tribological property test adjustable in pitch under a kind of dynamic loading according to claim 5
Platform, it is characterised in that: the T-type steering box includes base, horizontal axis seat, horizontal axis, the longitudinal axis, horizontal axis bevel gear, longitudinal axis bevel gear,
One end cap, second end cover, third end cap, the first tapered roller bearing, the second tapered roller bearing, third tapered roller bearing,
4th tapered roller bearing, bevel gear baffle, wherein horizontal axis, the longitudinal axis are connected on transmission shaft by elastic dowel pin shaft coupling, are indulged
Shaft bevel gears cover on longitudinal axis from right to left, and to the left, bevel gear right side is bonded the cone flank of tooth with the horizontal axis shaft shoulder, the 4th taper roller
Bearing covers on longitudinal axis from left to right, and tapered roller bearing left side is bonded by gasket with bevel gear right side, third end cap
It covers from left to right on longitudinal axis, axially position of the end cap as the 4th tapered roller bearing, it is logical that third end cap is nested in the base right side
It in hole, is fixed on the machine seat by six tight fixed bolts, third tapered roller bearing is covered from left to right in the longitudinal axis, the rolling of third circular cone
Sub- bearing right end is bonded with longitudinal axis left axle shoulder, and second end cover covers on transverse axis from left to right, and end cap is as third taper roller axis
The axially position held, second end cover are nested in the left through-hole of base, are fixed on pedestal by six tight fixed bolts, the first circular cone
Roller bearing is inserted in horizontal axis from bottom to up, is bonded with the shaft shoulder on horizontal axis, the first tapered roller bearing together with horizontal axis from top to bottom
Be inserted in horizontal axis seat, the first tapered roller bearing upper surface is bonded with the shaft shoulder inside horizontal axis seat, the second tapered roller bearing from up to
Under be inserted in the longitudinal axis, the upper shaft shoulder is bonded inside the second tapered roller bearing lower end surface and horizontal axis seat, and bearing shim is inserted in from top to bottom
The longitudinal axis, bearing shim are bonded with the second tapered roller bearing upper surface, and horizontal axis bevel gear is inserted in horizontal axis, bevel gear cone from top to bottom
Increment is upward, and bevel gear lower end is bonded with bearing shim, and horizontal axis seat is nested in base front through hole, solid by six tight fixed bolts
Due on base, first end cover is nested in horizontal axis seat exit orifice, and oil sealing is installed between first end cover and horizontal axis, passes through six tightenings
Bolt is fixed on horizontal axis seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811606152.0A CN109470479B (en) | 2018-12-26 | 2018-12-26 | Friction performance test bed for large-shaft-diameter sliding bearing group with adjustable distance under dynamic load |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811606152.0A CN109470479B (en) | 2018-12-26 | 2018-12-26 | Friction performance test bed for large-shaft-diameter sliding bearing group with adjustable distance under dynamic load |
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| CN109470479A true CN109470479A (en) | 2019-03-15 |
| CN109470479B CN109470479B (en) | 2023-09-26 |
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| CN111811817A (en) * | 2020-07-15 | 2020-10-23 | 合肥工业大学 | High-precision fluid dynamic pressure sliding bearing comprehensive performance test platform |
| CN113848062A (en) * | 2021-12-01 | 2021-12-28 | 三迪(常州)智能装备有限公司 | Oilless bearing friction force detection equipment |
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