CN106840676A - Shearing and tension and compression dual drive and the visual sliding bearing noise testing testing machine of film shape - Google Patents
Shearing and tension and compression dual drive and the visual sliding bearing noise testing testing machine of film shape Download PDFInfo
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- CN106840676A CN106840676A CN201710167913.6A CN201710167913A CN106840676A CN 106840676 A CN106840676 A CN 106840676A CN 201710167913 A CN201710167913 A CN 201710167913A CN 106840676 A CN106840676 A CN 106840676A
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- G—PHYSICS
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- 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
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Abstract
The present invention relates to a kind of individual shearing and tension and compression dual drive and the visual sliding bearing noise testing testing machine of film shape, the tension and compression campaign of amplitude and frequency-adjustable is produced by two independent power sources between axle and bearing, and the adjustable shearing motion of rotating speed realizes the sliding bearing lubricating oil film phenomenon under complex load during their collective effects and normal-moveout spectrum；Tension and compression and rotating actuator drive the main shaft to carry out tension and compression and shearing motion respectively；External optical path mechanism can realize collection measurement while the Film Cavitation image and noise, displacement, pressure and vibration information occurred in related circular arc viewing area；Adjustable drive mechanism moves support by steel wire traction in high precision, it is ensured that the position of dynamic support.The present invention can simulate the oil film noise experiment of sliding bearing, realize being counted between main shaft and glass guide channel the tension and compression campaign of shearing, different tension and compression amplitudes, different tension and compression frequencies, different shear rates, the tension and compression oil film noise for counting shearing effect of different oils type can be measured.
Description
Technical field
The present invention relates to a kind of shearing and tension and compression dual drive and the visual sliding bearing noise testing testing machine of film shape, it is used for
The formation in hole and rupture produce the measurement of noise in oil film.
Background technology
The power that dynamically loaded plain bearing is born is changed over time, and the oil film in sliding bearing is not only subject to pressure,
And acted on by shearing force.Dynamically loaded plain bearing is widely used in the every field of machinery industry, such as gas turbine, diesel oil
Machine etc..With the high speed development of modern industrial technology, requirement to dynamically loaded plain bearing oil film also more and more higher.Examined due to comprehensive
Consider the factor such as minimum oil film thickness, maximum pressure, the dynamic change in hole that can bear oil film tension and compression it is theoretical into
It is ripe, and develop to the direction for being more nearly actual condition.But, operationally by the effect of dynamic load, oil film is operationally for bearing
Irregular noise can be produced, sound is very big, make us puzzlement.In order to be able to faithfully probe into actual condition when oil film works, carry
The performance of bearing high, the influence for reducing noise, the puzzlement of solution staff are ground, it is necessary to carry out to the experiment of oil film noise testing
Study carefully, to verify the dynamic change in hole in noise Producing reason and oil film, so as to help to deepen the cognition to this problem
And understanding, its influence factor of Correct Analysis and lubrication mechanism.
Shearing is to ensure main shaft and arc with the key of tension and compression dual drive and the visual sliding bearing noise testing experiment of film shape
Two relative position relations of axis of shape glass guide channel.Noise is because oil film generates hole under certain negative pressure, and then hole is broken
Split generation, while in order that oil film thickness is symmetric about the axis, so must assure that in test live spindle axis and
The axis of arc glass groove is at grade and this axial plane is perpendicular to bottom surface.It is simultaneously related in order to gather oil film
The hole dynamic change in region, will also ensure that the axis of rear reflector is located on above-mentioned axial plane.Dynamic load is slided at present
The pressure distribution of oil film and the dynamic change in hole have done considerable research, and the research of noise is produced to hole rupture
Seldom, theory stage and is only rested on, in order to be apparent from the mechanism and the actual working condition of oil film of noise generation, to meter
It is necessary for enter the tension and compression oil film noise analysis of shearing effect carrying out experimental study.
The content of the invention
It is current to Film Cavitation rupture generation noise research consideration pulling and pressed effect the invention aims to make up
With the differentiated deficiency of real work situation, there is provided a kind of shearing and tension and compression dual drive and the visual sliding bearing noise of film shape
Measurement testing machine, realization counts the measurement of the tension and compression oil film noise of shearing effect under different working conditions, and its core is to realize
The oil film under the tension and compression campaign and the adjustable shearing motion collective effect of rotating speed of amplitude and frequency-adjustable is produced between axle and bearing
Sliding bearing lubricating oil film phenomenon under complex load and normal-moveout spectrum, and can simultaneously gather appearance in related circular arc viewing area
Film Cavitation image and noise, displacement, pressure and vibration information.
In order to achieve the above object, idea of the invention is that：
Realize that the mechanisms such as upper and lower tension and compression campaign, vibrator connection transiting rod drive dynamic support to move up and down using vibrator mechanism
So as to drive main shaft to carry out upper and lower compressional movement；Motor drives driving shaft to rotate by Timing Belt, and driving shaft is joined by tire
Axle device is connected with experiment main shaft so that the shearing motion that is rotated of main shaft；In order to the position of main shaft and arc glass groove is closed
System, using the dynamic support of eight steel wires point upper and lower surface traction, with ensure main shaft axis and arc glass groove axis same
In plane and this axial plane is perpendicular to bottom surface, while also to ensure the axis of reflective mirror on this plane；In order to observe meter
Enter the dynamic change of the tension and compression oil film of shearing effect, bottom uses horn-like arc clear glass groove, uses high-speed CCD system
Observed by being placed in rear reflector front, obtained panorama depth picture.
Conceived according to foregoing invention, the present invention is adopted the following technical scheme that：
A kind of shearing and tension and compression dual drive and the visual sliding bearing noise testing testing machine of film shape, including：Base plate, workbench,
Quiet pillar, support bar, upper plate, Timing Belt, experimental section, high-speed CCD system, dynamic support, tension and compression transmission mechanism, rotary drive machine
Structure, high accuracy adjustable mechanism, external optical path mechanism, motor travel mechanism；The workbench is placed on the ground, described
Base plate is located on workbench, and four quiet pillars are bolted on base plate, and the upper plate is located at the top of quiet pillar, every two
The fixation support bar is connected through a screw thread between individual quiet pillar；The dynamic support is by steel wire traction on quiet pillar；The reality
Test part and be located at the inside in space surrounded in quiet pillar, the bottom of experimental section is fixed on base plate, top and dynamic support phase
Even；The high-speed CCD system is fixed on the ground by tripod；The rotating actuator by being threadedly connected on base plate,
And be connected with experimental section；The tension and compression transmission mechanism is located at the top of dynamic support, middle to be supported by upper plate；The high accuracy
Adjustable mechanism is located at and moves between support and quiet pillar, respectively by screw thread and steel wire hook and dynamic support and the connection of quiet pillar；Institute
Motor travel mechanism is stated positioned at workbench bottom, is connected by screw on the table；The Timing Belt is located at motor moving machine
Between structure and rotating actuator, the rotary motion for transmitting motor；The external optical path mechanism is solid by screw
It is scheduled on base plate.
The high-speed CCD system includes high-speed CCD, zoom lens, cold light source, tripod；The tripod is located at ground
On, for supporting high-speed CCD system；The high-speed CCD is threadedly attached in tripod top, and measures light positioned at external
The front of road mechanism；The zoom lens is connected to high-speed CCD front, and cold light source is fixed by screws on zoom lens.
The experimental section includes：Main shaft, axle sleeve, a pair of axle sleeve back-up rings, gear oil cap, a pair of displacement transducers, arc glass
After glass groove, oil sump support, before oil sump support, before a pair of angular contact ball bearings, dynamic bracket bearing end caps, move bracket bearing end cap
Afterwards, before lip-type packing, oil sump ring flange, after oil sump ring flange；After the oil sump support and the oil sump support before by screw
It is fixed on base plate；The arc glass groove is located at the top after oil sump support and before oil sump support, convenient to observe the dynamic of oil film
State changes, and arc glass groove is for holding lubricating oil；The gear oil cap is buckled in upper after oil sump support and before oil sump support
Side, is connected by screw fixation, and lubricating oil splash is prevented during experiment；The pair of displacement transducer is connected through a screw thread and is fixed on
Gear oil cap top, the amplitude for measuring tension and compression campaign；The main shaft is located at dynamic support bottom, and tension and compression fortune is carried out with servo support
It is dynamic；The pair of angular contact ball bearing is located at main shaft two ends, is fixed in dynamic rack shaft holder and dynamic support foreboard；The dynamic branch
It is threadedly secured to before frame bearing (ball) cover on dynamic support foreboard, dynamic branch is fixed by screws in after the dynamic bracket bearing end cap
On frame bearing block, the clearance of angular contact ball bearing is eliminated by adjust pad；The lip-type packing is located at dynamic support shaft socket end
It is internal before lid, for preventing oil leak；The axle sleeve passes through taper fit on main shaft, and ensures the axiality of axle sleeve and main shaft；
The pair of axle sleeve back-up ring is connected through a screw thread and is fixed on main shaft, and axial restraint is carried out to axle sleeve；Before the oil sump ring flange
Be connected by screw respectively after oil sump ring flange be fixed on before frame oil sump support and oil sump support after on, in order to wale
Rubber；Up-down vibration tension and compression by axle sleeve to arc glass groove form tension and compression oil film；Rotation by main shaft is realized cutting oil film
Cut effect.
The dynamic support includes：Dynamic support back plate, dynamic support foreboard, dynamic rack shaft holder, a pair dynamic flange bracket disks, eight
Individual steel wire hook, dynamic rack plate, a pair dynamic rack connecting plates；Steel wire hook by screw be symmetrically connected to dynamic support back plate and
On dynamic support foreboard, and it is connected with steel wire；The dynamic rack connecting plate is located at and moves between support back plate and dynamic support foreboard, passes through
Pin is positioned, and is connected with dynamic support back plate and dynamic support foreboard by screw；The dynamic support back plate and dynamic support foreboard
It is connected with eight steel wires by steel wire hook, and its weight is undertaken by steel wire；The dynamic rack shaft holder is connected by screw
In dynamic support back plate, and positioned by pin；The pair of dynamic flange bracket disk is located at dynamic support bottom, by screw
Connected symmetrical dendrimer is arranged on dynamic rack shaft holder and dynamic support foreboard, plays a part of to wale rubber；The dynamic rack plate position
In dynamic support topmost, dynamic support back plate, dynamic support foreboard, dynamic rack connecting plate are threadingly attached to, and by centre
Screw thread is connected with tension and compression transmission mechanism, drives dynamic bracket institution to carry out tension and compression campaign.
The tension and compression transmission mechanism includes：Vibrator, vibrator seat, connecting rod, tension-compression sensor, transiting rod, adjustment spiral shell
It is female；The vibrator seat is positioned on upper plate, and is fixed by screw；The vibrator is located on vibrator seat, by screw
Connection vibrator seat, and upper and lower tension and compression campaign can be carried out under certain input signal, change the frequency of input signal so as to change
Become the frequency of tension and compression campaign, regulation power amplification multiple changes the amplitude of tension and compression campaign；The connecting rod top is connected by screw thread
Connect vibrator；The tension-compression sensor top is connected by screw thread with the bottom of connecting rod；The transiting rod top passes through screw thread
It is connected with the bottom of tension-compression sensor；The adjusting nut top is connected by screw thread with the bottom of transiting rod, its bottom with it is dynamic
Bracket institution is connected, while the rotation direction of the upper and lower screw thread of adjusting nut is different, so as to accomplish the continuously adjustabe of dynamic support height；Pass through
Being rigidly connected between connecting rod, tension-compression sensor, transiting rod, adjusting nut, by pumping step by step for vibrator
Dynamic support is transmitted to, the frequency of tension and compression campaign and the continuously adjustabe of amplitude is realized.
The rotating actuator includes：Driving shaft, tyre coupling, a pair of angular contact ball bearings, drive shaft bearing seat,
A pair of drive shaft bearing end caps, big belt wheels；Described tyre coupling one end is connect by being bonded with experiment main shaft, the other end with actively
Axle is connected；The angular contact ball bearing is located at main shaft two ends, and is fixed in drive shaft bearing seat；The drive shaft bearing seat is logical
Cross on bolt connection base plate；By screw, symmetrically connection is located at drive shaft bearing seat both sides to the pair of drive shaft bearing end cap,
The clearance that adjust pad eliminates angular contact ball bearing is added by end cap and bearing outer ring；The big belt wheel is by key and active
The other end of axle is connected, and the rotary motion of transmission mechanism is rotated.
The high accuracy adjustable mechanism includes：Steel wire, steel wire knob, steel wire pull bar；The steel wire pull bar is inserted in quiet pillar
In corresponding waist-shaped hole, a certain distance can be moved forward and backward；Described steel wire one end is connected with steel wire hook, the other end and steel wire
Pull bar is connected；The steel wire knob is threadedly attached on steel wire pull bar, and rotatable wire knob is dynamic by elastic steel wire traction
Support is so as to finely tune the position of dynamic support.
The external optical path realizes that the distance of oil film each point to high-speed CCD is equal, realizes panorama depth, including：
Rear reflector, rear reflector support；The rear reflector support be connected through a screw thread with base plate；The rear reflector is by reflective
Glass supporter is supported, in 45oThe angle of release at angle；The high-speed CCD is located at the front of rear reflector opening surface, and cold light source is irradiated
The parallel light for coming is irradiated on rear reflector, and rear reflector along reflecting vertically upward, reflexes on arc glass groove, in this light
Conversely, the imaging on arc glass groove reflexes to high-speed CCD system in reverse direction；By the rear reflector that subtended angle is 45 °, make oil
Film relevant range each point arrives the equal apart from sum of high-speed CCD to the distance of rear reflector with after reflection, realizes oil film related
The distance of region each point to high-speed CCD is equal, shows clearly full depth image.
The motor travel mechanism can realize the regular tensioning to Timing Belt, and mechanism includes：Motor mobile platform, small band
Wheel, motor；The motor moves on to platform and is threadedly attached in workbench bottom；The motor is connected through a screw thread motor movement
On platform, while making motor transverse shifting by adjusting the screw on the left of motor, play a part of to be tensioned Timing Belt；The small band
Wheel is connected by key with motor output shaft, and the rotary motion of big belt wheel is driven by Timing Belt, realizes that the independent of rotary motion can
Control.
The present invention compared with the prior art, with obvious substantive distinguishing features and advantage：
The present invention can simulate dynamically loaded plain bearing oil film experiment, and the bearing diameter gap of experiment is 0.15mm, and main shaft is being drawn
During pressure motion, the adjustable shearing motion of rotating speed can be simultaneously carried out, and two kinds of motions are separate.By the input of vibrator signal
Power, is capable of achieving continuously adjusting for 0-1mm amplitudes, by changing the frequency input signal of vibrator, realizes that tension and compression campaign is in office
What carried out under frequency, by changing the rotating speed of motor, be capable of achieving shearing motion is carried out under 0-700 revs/min, using at a high speed
CCD systems carry out captured in real-time to shearing with the oil film of tension and compression dual drive, it can be seen that count hole in the tension and compression oil film of shearing
Generation, aggregation, the dynamic process of rupture, while synchronously being triggered using computer, image and synchronization sensor is believed
Number correspondence；The achievable tension and compression campaign that shearing is counted between main shaft and glass guide channel, can measure different tension and compression amplitudes, different tension and compression frequently
Rate, different shear rates, different oils type（Simulate respectively the minimum oil film thickness of sliding bearing, main shaft dynamic load frequency,
Main shaft rotary speed, lubricant type）The tension and compression oil film noise for counting shearing effect, easily to its real-time control, increased
The reliability of measurement.
The key for forming tension and compression oil film is the position relationship for ensureing main shaft and arc glass groove, the i.e. axis and arc of main shaft
The axis of glass guide channel is at grade and this axial plane is perpendicular to bottom surface, while also to ensure the axis position of rear reflector
In on above-mentioned axial plane, in order to reach this purpose, dynamic support ensures position relationship by steel wire traction, and steel wire is divided into up and down
Two-layer, every layer has equidistant four tractions, by the position for adjusting the length of steel wire to adjust dynamic support, it is ensured that dynamic support exists
Correct position and the position relationship of guarantee main shaft and arc glass groove.
In order to realize the panorama depth of IMAQ image, it is ensured that image clearly is visible everywhere for main shaft experimental section, will not go out
Phenomenon is now blurred, special rear reflector is devised, using 45 ° of horn-like reflective mirrors of opening, makes the Key Experiment portion of oil film
Divide each point consistent by the distance after rear reflector reflection, solve the problems, such as that panorama is deep, while realizing 100 ° of big visual angle.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the structure sectional view of experimental section in the present invention.
Fig. 3 is the structural representation of dynamic support in the present invention.
Fig. 4 is the section of structure of motor travel mechanism in the present invention.
Specific embodiment
Embodiments of the invention combination detailed description is as follows：
As shown in figure 1, a kind of shearing and tension and compression dual drive and the visual sliding bearing noise testing testing machine of film shape, including：Bottom
Plate 6, workbench 4, quiet pillar 9, support bar 8, upper plate 10, Timing Belt 5, experimental section, high-speed CCD system, dynamic support, tension and compression are passed
Motivation structure, rotating actuator, high accuracy adjustable mechanism, external optical path mechanism, motor travel mechanism；The workbench
4 place on the ground, the base plate 6 be located at workbench 4 on, four quiet pillars 9 are bolted on base plate 6, it is described on
Plate 10 is located at the top of quiet pillar 9, and the fixation support bar 8 is connected through a screw thread between the quiet pillar 9 of each two；The dynamic support
It is pulled on quiet pillar 9 by steel wire 43；The experimental section is located at the inside in the space surrounded in quiet pillar 9, experimental section
Bottom is fixed on base plate 6, and top is connected with dynamic support；The high-speed CCD system is fixed on the ground by tripod 20；Institute
Rotating actuator is stated by being threadedly connected on base plate 6, and is connected with experimental section；The tension and compression transmission mechanism is located at dynamic support
Top, centre supported by upper plate 10；The high accuracy adjustable mechanism is located at and moves between support and quiet pillar 9, passes through respectively
Screw thread and steel wire hook and dynamic support and quiet pillar 9 are connected；The motor travel mechanism is located at the bottom of workbench 4, by screw
It is connected on workbench 4；The Timing Belt 5 is located between motor travel mechanism and rotating actuator, for transmitting motor 3
Rotary motion；The external optical path mechanism is fixed by screws on base plate 6.
As shown in figure 1, the high-speed CCD system includes high-speed CCD 19, zoom lens 18, cold light source 17, tripod 20；
The tripod 20 rest on the ground, for supporting high-speed CCD system；The high-speed CCD 19 is threadedly attached in tripod
20 tops, and positioned at the front of external optical path mechanism；The zoom lens 18 is connected to the front of high-speed CCD 19, cold
Light source 17 is fixed by screws on zoom lens 18.
As shown in Fig. 2 the experimental section includes：Main shaft 24, axle sleeve 29, a pair of axle sleeve back-up rings 25, gear oil cap 37, a pair
After displacement transducer 36, arc glass groove 23, oil sump support 22 before 21, oil sump support, a pair of angular contact ball bearings 40, dynamic supports
41 before bearing (ball) cover, after dynamic bracket bearing end cap before 47, lip-type packing 42, oil sump ring flange 28 after 39, oil sump ring flange；Institute
22 are stated after oil sump support before 21 and the oil sump support to be fixed on base plate 6 by screw；The arc glass groove 23 is located at oil sump
After support 21 and oil sump support before 22 top, the dynamic change of convenient observation oil film, arc glass groove 23 is for holding profit
Lubricating oil；The gear oil cap 37 is buckled in after oil sump support before 21 and oil sump support 22 top, is connected by screw fixation, tests
When prevent lubricating oil splash；The pair of displacement transducer 36 is connected through a screw thread and is fixed on the top of gear oil cap 37, for measuring
The amplitude of tension and compression campaign；The main shaft 24 is located at dynamic support bottom, and tension and compression campaign is carried out with servo support；The pair of angular contact
Ball bearing 40 is located at the two ends of main shaft 24, is fixed in dynamic rack shaft holder 48 and dynamic support foreboard 38；The dynamic support shaft socket end
Lid preceding 41 is threadedly secured on dynamic support foreboard 38, and 47 are fixed by screws in dynamic support after the dynamic bracket bearing end cap
On bearing block 48, the clearance of angular contact ball bearing 40 is eliminated by adjust pad；The lip-type packing 42 is located at dynamic support shaft
Inside 41 before socket end lid, for preventing oil leak；The axle sleeve 29 passes through taper fit on main shaft 24, and ensures axle sleeve 29 and master
The axiality of axle 24；The pair of axle sleeve back-up ring 25 is connected through a screw thread and is fixed on main shaft 24, axle sleeve 29 is carried out axially solid
It is fixed；Before the oil sump ring flange 39 and oil sump ring flange after 28 be connected by screw be fixed on before frame oil sump support 22 and oil respectively
On 21 after the support of pond, in order to wale rubber 27；Up-down vibration tension and compression by axle sleeve 29 to arc glass groove 23 are formed draws
Force feed film；The shearing effect realized to oil film is rotated by main shaft 24.
As depicted in figs. 1 and 2, the dynamic support includes：Dynamic support back plate 30, dynamic support foreboard 38, dynamic rack shaft holder
48th, a pair dynamic flange bracket disks, 26, eight steel wire hooks 50, dynamic rack plate 31, a pair dynamic rack connecting plates 49；Steel wire hook
50 are symmetrically connected in dynamic support back plate 30 and dynamic support foreboard 38 by screw, and are connected with steel wire 43；The dynamic support connects
Fishplate bar 49 is located between dynamic support back plate 30 and dynamic support foreboard 38, is positioned by pin, by after screw with dynamic support
Plate 30 and dynamic support foreboard 38 are connected；The dynamic support back plate 30 and dynamic support foreboard 38 pass through steel wire hook 50 and eight steel wires
43 are connected, and undertake its weight by steel wire 43；The dynamic rack shaft holder 48 is connected by screw in dynamic support back plate 30,
And positioned by pin；The pair of dynamic flange bracket disk 26 is located at dynamic support bottom, is connected by screw and is symmetrically installed
On dynamic rack shaft holder 48 and dynamic support foreboard 38, play a part of to wale rubber 27；The dynamic rack plate 31 is located at dynamic
Support topmost, is threadingly attached to dynamic support back plate 30, dynamic support foreboard 38, dynamic rack connecting plate 49, and by centre
Screw thread be connected with tension and compression transmission mechanism, drive dynamic bracket institution to carry out tension and compression campaign.
As depicted in figs. 1 and 2, the tension and compression transmission mechanism includes：Vibrator 12, vibrator seat 11, connecting rod 33, tension and compression
Sensor 34, transiting rod 35, adjusting nut 32；The vibrator seat 11 is positioned on upper plate 10, and is fixed by screw；It is described
Vibrator 12 is located on vibrator seat 11, is connected by screw vibrator seat 11, and can be carried out under certain input signal
Lower tension and compression campaign, changes the frequency of input signal so as to change the frequency of tension and compression campaign, and regulation power amplification multiple changes tension and compression
The amplitude of motion；The top of the connecting rod 33 is connected through a screw thread vibrator 12；The top of the tension-compression sensor 34 passes through screw thread
Bottom with connecting rod 33 is connected；The top of the transiting rod 35 is connected by screw thread with the bottom of tension-compression sensor 34；The tune
The top of whole nut 32 is connected by screw thread with the bottom of transiting rod 35, and its bottom is connected with dynamic bracket institution, while adjusting nut
The rotation direction of about 32 screw threads is different, so as to accomplish the continuously adjustabe of dynamic support height；By connecting rod 33, tension-compression sensor 34,
Being rigidly connected between transiting rod 35, adjusting nut 32, it is real by the dynamic support that be transmitted to step by step that pumps of vibrator 12
The frequency of existing tension and compression campaign and the continuously adjustabe of amplitude.
As depicted in figs. 1 and 2, the rotating actuator includes：Driving shaft 51, tyre coupling 44, a pair of angular contacts
Ball bearing 40, drive shaft bearing seat 45, a pair of drive shaft bearing end caps 46, big belt wheels 7；The one end of the tyre coupling 44 and reality
Test main shaft 24 to be connect by being bonded, the other end is connected with driving shaft 51；The angular contact ball bearing 40 is located at the two ends of main shaft 24, and solid
It is scheduled in drive shaft bearing seat 45；The drive shaft bearing seat 45 is bolted on base plate 6；The pair of drive shaft bearing
By screw, symmetrically connection is located at 45 both sides of drive shaft bearing seat to end cap 46, and adjust pad is added by end cap and bearing outer ring
Eliminate the clearance of angular contact ball bearing 40；The big belt wheel 7 is connected by key with the other end of driving shaft 51, and transmission is rotated
The rotary motion of mechanism.
As shown in Figure 1, Figure 2 and Figure 3, the high accuracy adjustable mechanism includes：Steel wire 43, steel wire knob 13, steel wire pull bar
14；The steel wire pull bar 14 is inserted in the corresponding waist-shaped hole of quiet pillar 9, can move forward and backward a certain distance；The steel wire 43
One end is connected with steel wire hook 50, and the other end is connected with steel wire pull bar 14；The steel wire knob 13 is threadedly attached to steel wire
On pull bar, rotatable wire knob 13 draws dynamic support so as to finely tune the position of dynamic support by elastic steel wire 43.
As depicted in figs. 1 and 2, the external optical path realizes that the distance of oil film each point to high-speed CCD is equal, realizes
Panorama depth, including：Rear reflector 15, rear reflector support 16；The rear reflector support 16 is connected through a screw thread and base plate 6
On；The rear reflector 15 is supported by rear reflector support 16, in 45oThe angle of release at angle；The high-speed CCD is located at rear reflector 15
The front of opening surface, cold light source 17 irradiates the parallel light for coming and is irradiated on rear reflector 15, and rear reflector 15 is by light along vertical
Straight reflection upwards, reflexes on arc glass groove 23, and conversely, the imaging on arc glass groove 23 reflexes to height in reverse direction
Fast CCD systems；By the rear reflector 15 that subtended angle is 45 °, make oil film relevant range each point to rear reflector 15 distance with it is anti-
To the equal apart from sum of high-speed CCD 19 after penetrating, the distance for realizing oil film relevant range each point to high-speed CCD 19 is equal, is in
Reveal clearly full depth image.
As shown in Figure 1 and Figure 4, the motor travel mechanism can realize the regular tensioning to Timing Belt, and mechanism includes：Electricity
Machine mobile platform 1, small pulley 2, motor 3；The motor moves on to platform 2 and is threadedly attached in the bottom of workbench 4；The motor
3 are connected through a screw thread on motor mobile platform 1, while making motor transverse shifting by adjusting the screw in the left side of motor 3, play and open
The effect of tight Timing Belt 5；The small pulley 2 is connected by key with the output shaft of motor 3, and the rotation of big belt wheel 7 is driven by Timing Belt 5
Transhipment is dynamic, realizes the individually controllable of rotary motion.
Claims (9)
1. it is a kind of to shear and tension and compression dual drive and the visual sliding bearing noise testing testing machine of film shape, it is characterised in that including：
Base plate（6）, workbench（4）, quiet pillar（9）, support bar（8）, upper plate（10）, Timing Belt（5）, experimental section, high-speed CCD system
System, dynamic support, tension and compression transmission mechanism, rotating actuator, high accuracy adjustable mechanism, external optical path mechanism, motor are moved
Motivation structure；The workbench（4）Place on the ground, the base plate（6）Positioned at workbench（4）On, four quiet pillars（9）Pass through
It is bolted to base plate（6）On, the upper plate（10）Positioned at quiet pillar（9）Top, the quiet pillar of each two（9）Between pass through spiral shell
Line is connected the support bar（8）；The dynamic support is by steel wire（43）It is pulled in quiet pillar（9）On；The experimental section position
In in quiet pillar（9）The inside in the space for surrounding, the bottom of experimental section is fixed on base plate（6）On, top is connected with dynamic support；
The high-speed CCD system passes through tripod（20）Fix on the ground；The rotating actuator is by being threadedly connected to base plate（6）
On, and be connected with experimental section；The tension and compression transmission mechanism is located at the top of dynamic support, and centre passes through upper plate（10）Support；Institute
State high accuracy adjustable mechanism and be located at dynamic support and quiet pillar（9）Between, respectively by screw thread and steel wire hook and dynamic support and quiet
Pillar（9）Connection；The motor travel mechanism is located at workbench（4）Bottom, is connected by screw in workbench（4）On；It is described
Timing Belt（5）Between motor travel mechanism and rotating actuator, for transmitting motor（3）Rotary motion；It is described outer
Zhi Shi optical paths mechanism is fixed by screws in base plate（6）On.
It is 2. according to claim 1 to shear and tension and compression dual drive and the visual sliding bearing noise testing testing machine of film shape,
Characterized in that, the high-speed CCD system includes high-speed CCD（19）, zoom lens（18）, cold light source（17）, tripod（20）；
The tripod（20）It rest on the ground, for supporting high-speed CCD system；The high-speed CCD（19）It is threadedly attached in three
Foot stool（20）Top, and positioned at the front of external optical path mechanism；The zoom lens（18）It is connected to high-speed CCD
（19）Front, cold light source（17）It is fixed by screws in zoom lens（18）On.
It is 3. according to claim 1 to shear and tension and compression dual drive and the visual sliding bearing noise testing testing machine of film shape,
Characterized in that, the experimental section includes：Main shaft（24）, axle sleeve（29）, a pair of axle sleeve back-up rings（25）, gear oil cap（37）, one
To displacement transducer（36）, arc glass groove（23）, after oil sump support（21）, before oil sump support（22）, a pair of angular contact ball axles
Hold（40）, before dynamic bracket bearing end cap（41）, after dynamic bracket bearing end cap（47）, lip-type packing（42）, before oil sump ring flange
（39）, after oil sump ring flange（28）；After the oil sump support（21）Before the oil sump support（22）Base plate is fixed on by screw
（6）On；The arc glass groove（23）After oil sump support（21）Before oil sump support（22）Top, convenient observation oil film
Dynamic change, arc glass groove（23）It is for holding lubricating oil；The gear oil cap（37）After being buckled in oil sump support（21）
Before oil sump support（22）Top, be connected by screw fixation, lubricating oil splash is prevented during experiment；The pair of displacement sensing
Device（36）It is connected through a screw thread and is fixed on gear oil cap（37）Top, the amplitude for measuring tension and compression campaign；The main shaft（24）Position
In dynamic support bottom, tension and compression campaign is carried out with servo support；The pair of angular contact ball bearing（40）Positioned at main shaft（24）Two ends,
It is fixed on dynamic rack shaft holder（48）With dynamic support foreboard（38）It is interior；Before the dynamic bracket bearing end cap（41）It is threadably secured
In dynamic support foreboard（38）On, after the dynamic bracket bearing end cap（47）It is fixed by screws in dynamic rack shaft holder（48）On,
Angular contact ball bearing is eliminated by adjust pad（40）Clearance；The lip-type packing（42）Before dynamic bracket bearing end cap
（41）Inside, for preventing oil leak；The axle sleeve（29）By taper fit in main shaft（24）On, and ensure axle sleeve（29）And master
Axle（24）Axiality；The pair of axle sleeve back-up ring（25）It is connected through a screw thread and is fixed on main shaft（24）On, to axle sleeve（29）Enter
Row axial restraint；Before the oil sump ring flange（39）After oil sump ring flange（28）It is connected by screw respectively and is fixed on frame oil sump
Before support（22）After oil sump support（21）On, in order to wale rubber（27）；By axle sleeve（29）To arc glass groove
（23）Up-down vibration tension and compression formed tension and compression oil film；By main shaft（24）Rotation realize to the shearing effect of oil film.
It is 4. according to claim 1 to shear and tension and compression dual drive and the visual sliding bearing noise testing testing machine of film shape,
Characterized in that, the dynamic support includes：Dynamic support back plate（30）, dynamic support foreboard（38）, dynamic rack shaft holder（48）, a pair
Dynamic flange bracket disk（26）, eight steel wire hooks（50）, dynamic rack plate（31）, a pair dynamic rack connecting plates（49）；Wire peg
Hook（50）Dynamic support back plate is symmetrically connected to by screw（30）With dynamic support foreboard（38）On, and and steel wire（43）It is connected；Institute
State rack connecting plate（49）Positioned at dynamic support back plate（30）With dynamic support foreboard（38）Between, positioned by pin, lead to
Screw is crossed with dynamic support back plate（30）With dynamic support foreboard（38）Connection；The dynamic support back plate（30）With dynamic support foreboard（38）
By steel wire hook（50）With eight steel wires（43）It is connected, and by steel wire（43）Undertake its weight；The dynamic rack shaft holder
（48）It is connected by screw in dynamic support back plate（30）On, and positioned by pin；The pair of dynamic flange bracket disk
（26）Positioned at dynamic support bottom, it is connected by screw and is symmetrically mounted on dynamic rack shaft holder（48）With dynamic support foreboard（38）On,
Play and wale rubber（27）Effect；The dynamic rack plate（31）Positioned at dynamic support topmost, it is threadingly attached to dynamic branch
Frame back plate（30）, dynamic support foreboard（38）, dynamic rack connecting plate（49）, and by middle screw thread and tension and compression transmission mechanism phase
Even, driving dynamic bracket institution carries out tension and compression campaign.
It is 5. according to claim 1 to shear and tension and compression dual drive and the visual sliding bearing noise testing testing machine of film shape,
Characterized in that, the tension and compression transmission mechanism includes：Vibrator（12）, vibrator seat（11）, connecting rod（33）, tension-compression sensor
（34）, transiting rod（35）, adjusting nut（32）；The vibrator seat（11）It is positioned over upper plate（10）On, and fixed by screw；
The vibrator（12）Positioned at vibrator seat（11）On, it is connected by screw vibrator seat（11）, and can believe in certain input
Upper and lower tension and compression campaign is carried out under number, changes the frequency of input signal so as to change the frequency of tension and compression campaign, regulation power amplification times
Number changes the amplitude of tension and compression campaign；The connecting rod（33）Top is connected through a screw thread vibrator（12）；The tension-compression sensor
（34）Top passes through screw thread and connecting rod（33）Bottom connection；The transiting rod（35）Top passes through screw thread and tension-compression sensor
（34）Bottom connection；The adjusting nut（32）Top passes through screw thread and transiting rod（35）Bottom connection, its bottom with it is dynamic
Bracket institution is connected, while adjusting nut（32）The rotation direction of upper and lower screw thread is different, so as to accomplish the continuously adjustabe of dynamic support height；
By connecting rod（33）, tension-compression sensor（34）, transiting rod（35）, adjusting nut（32）Between be rigidly connected, by vibrator
（12）The dynamic support that be transmitted to step by step that pumps, realize the frequency of tension and compression campaign and the continuously adjustabe of amplitude.
It is 6. according to claim 1 to shear and tension and compression dual drive and the visual sliding bearing noise testing testing machine of film shape,
Characterized in that, the rotating actuator includes：Driving shaft（51）, tyre coupling（44）, a pair of angular contact ball bearings
（40）, drive shaft bearing seat（45）, a pair of drive shaft bearing end caps（46）, big belt wheel（7）；The tyre coupling（44）One end
With experiment main shaft（24）Connect by being bonded, the other end and driving shaft（51）It is connected；The angular contact ball bearing（40）Positioned at main shaft
（24）Two ends, and it is fixed on drive shaft bearing seat（45）It is interior；The drive shaft bearing seat（45）It is bolted base plate（6）
On；The pair of drive shaft bearing end cap（46）Symmetrically connected by screw positioned at drive shaft bearing seat（45）Both sides, by
End cap and bearing outer ring addition adjust pad eliminate angular contact ball bearing（40）Clearance；The big belt wheel（7）By key and master
Moving axis（51）The other end be connected, the rotary motion of transmission mechanism is rotated.
It is 7. according to claim 1 to shear and tension and compression dual drive and the visual sliding bearing noise testing testing machine of film shape,
Characterized in that, the high accuracy adjustable mechanism includes：Steel wire（43）, steel wire knob（13）, steel wire pull bar（14）；The steel wire
Pull bar（14）It is inserted in quiet pillar（9）In corresponding waist-shaped hole, a certain distance can be moved forward and backward；The steel wire（43）One end with
Steel wire hook（50）It is connected, the other end and steel wire pull bar（14）It is connected；The steel wire knob（13）It is threadedly attached to steel wire
On pull bar, rotatable wire knob（13）By elastic steel wire（43）Traction moves support so as to finely tune the position of dynamic support.
It is 8. according to claim 1 to shear and tension and compression dual drive and the visual sliding bearing noise testing testing machine of film shape,
Characterized in that, the external optical path realizes that the distance of oil film each point to high-speed CCD is equal, panorama depth is realized, wrapped
Include：Rear reflector（15）, rear reflector support（16）；The rear reflector support（16）It is connected through a screw thread and base plate（6）On；
The rear reflector（15）By rear reflector support（16）Support, in 45oThe angle of release at angle；The high-speed CCD is located at rear reflector
（15）The front of opening surface, cold light source（17）Irradiate the parallel light for coming and be irradiated to rear reflector（15）On, rear reflector
（15）By light along reflecting vertically upward, arc glass groove is reflexed to（23）On, conversely, arc glass groove（23）On imaging
High-speed CCD system is reflexed in reverse direction；By the rear reflector that subtended angle is 45 °（15）, make oil film relevant range each point to instead
Light glass（15）Distance and reflection after to high-speed CCD（19）It is equal apart from sum, realize oil film relevant range each point and arrive
High-speed CCD（19）Distance it is equal, show clearly full depth image.
It is 9. according to claim 1 to shear and tension and compression dual drive and the visual sliding bearing noise testing testing machine of film shape,
Characterized in that, the motor travel mechanism can realize the regular tensioning to Timing Belt, mechanism includes：Motor mobile platform
（1）, small pulley（2）, motor（3）；The motor moves on to platform（2）It is threadedly attached in workbench（4）Bottom；The motor
（3）It is connected through a screw thread motor mobile platform（1）On, while by adjusting motor（3）The screw in left side makes motor transverse shifting,
Play tensioning Timing Belt（5）Effect；The small pulley（2）By key and motor（3）Output shaft is connected, by Timing Belt（5）
Drive big belt wheel（7）Rotary motion, realize the individually controllable of rotary motion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710167913.6A CN106840676B (en) | 2017-03-21 | 2017-03-21 | Shearing and tension and compression double drive and the visual sliding bearing noise testing testing machine of film shape |
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| CN1115834A (en) * | 1995-06-13 | 1996-01-31 | 华中理工大学 | Method of combining extrusion oil film and shearing oil film of current convertors |
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