CN208621303U - The wheel fatigue test board that can laterally load - Google Patents
The wheel fatigue test board that can laterally load Download PDFInfo
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- CN208621303U CN208621303U CN201821121104.8U CN201821121104U CN208621303U CN 208621303 U CN208621303 U CN 208621303U CN 201821121104 U CN201821121104 U CN 201821121104U CN 208621303 U CN208621303 U CN 208621303U
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Abstract
A kind of wheel fatigue test board that can laterally load, bracket are mounted on the upper surface of two arc guide rails, and decelerating motor is mounted on the middle position of bracket one end end face, and the sprocket wheel in geared motor output shaft is engaged with roller chain.On the arc-shaped lower plate for being arranged in arc guide rail one end of 6 support frames.Scale is fixed on the upper surface of curved baffle.There is the fit clearance of 2mm between the connecting pin bores on connecting plate connecting with pedestal and connecting pin, there is the gap of 8~10mm between the upper surface of connecting plate and the lower surface of pedestal.The rotation or lateral deviation of bracket are realized by two support cylinders.The utility model can arbitrarily deflect within the scope of -20~20 °, and easy to operate, saved manpower, improved work efficiency.
Description
Technical field
It is specifically a kind of to add for the lateral of airplane wheel accelerated life test the present invention relates to Inspection Aircraft Wheels experimental technique
The wheel fatigue test board of load.
Background technique
With the rapid development of China's aeronautical technology, aeroplane performance is continuously improved, also mentions to the service life of Inspection Aircraft Wheels
New higher requirement is gone out.Intensity is designed and manufactured in order to verify wheel before Aircraft Flight Test, needs to carry out wheel tired
Labor Roll test, and can wheel fatigue test board be exactly to examine its projected life meet technology rule before wheel design typification
The testing equipment that model requires.Wheel requires to carry out load Roll test according to loading spectrum on fatigue test board, and simulation aircraft exists
The working condition of wheel when taking off, alightinging run, stress state of the research measurement wheel under rotation work, understands design in time
The defects of strength problem and manufacture improve product quality, add up Roll test mileage, assess its service life.
Wheel fatigue test is exactly that airfield runway is replaced with drum according to relativity principle, and wheel is mounted on loading head
On, allow rotating drum to reach the rolling speed of test requirements document, manipulation loading head forces wheel to be pressed on surface of tub wheel and synchronizes
Rotation, the working condition of wheel when taking off, alighting run for simulating.The size of loading force is controlled by hydraulic system
The direction of system, loading force is controlled by fixed loading head and wheel bracket, is divided into Vertical loading and lateral load.Pass through these
The load that aircraft is applied to wheel is simulated, finally again by relevant detection means and data record, comprehensive assessment wheel
Whether the service life meets design and use requirement.
General fixing end load is directly anchored on ground, cannot be deflected, the Vertical loading to wheel may be implemented in it.?
When test, start cooling blower, starts dragging system motor, rotating drum, start-up loading system oil cylinder motor, load cylinder band
The subject wheel being mounted on wheel fork is pressed to drum by dynamic movable stand, and wheel passively rotates, i.e., carries out load test to wheel, is carried
Lotus sensor measurement oil cylinder output pressure, i.e. wheel load vertical load.When the commutation of hydraulic system solenoid directional control valve, load oil
Cylinder piston rod is withdrawn, and wheel is driven to leave drum, i.e. test is exited in wheel unloading.And the lateral load due to needing to measure wheel
More complicated, traditional method is to carry out load test again using after wheel bracket lateral deviation certain angle.Wheel bracket and drum
It is respectively mounted on the base, the wheel axis and drum central on wheel bracket are contour.Wheel bracket is on graduated arc-shaped guide rail
Mobile, guide rail both ends are equipped with lateral deviation oil cylinder, and lateral deviation cylinder piston rod is hinged by auricle with wheel bracket.Start lateral deviation oil cylinder
Motor, the flexible angle for pushing wheel bracket lateral deviation on arc-shaped guide rail certain of lateral deviation cylinder piston rod, then uses bolt
Locking, restarting load cylinder loads wheel bracket close to drum, with this come realize to test wheel lateral load.
But operate so highly inconvenient, since station fixes on the ground, and wheel bracket will do it deflection, therefore in test
At least need two people's cooperations to complete, people's manipulation operations platform a, people moves observation side inclination angle with wheel bracket,
Efficiency is relatively low in this way.And since wheel bracket is to drive to realize lateral deviation by lateral deviation oil cylinder, when stopping due to
Hydraulic buffer function, wheel bracket are often difficult accurately to stop onto desired position, and accuracy is poor.
In the innovation and creation application No. is CN201410244985.2, discloses a kind of wheel fatigue test board and laterally add
Carry and set, the lateral loading section of the device is: retarder and drum are installed in the upper surface of pedestal table top, support base installation
In pedestal table top lower surface.Support base support plate one end is hinged by auricle with column one end, and the column other end has circular bottom plate,
Column bottom plate and wheel fork circular bottom plate have through-hole, are connected by copper sheathing, realize that wheel fork rotates in the upper end of the column face, wheel fork bottom plate
And 24 location holes are all evenly distributed with around column bottom hole, and correspond, it is bolted.Wheel fork is by circular base
Plate and two strut compositions, wheel axis is fixed on wheel fork top, contour with drum central.Column middle section is by auricle and adds
It is hinged to carry oil cylinder, and the load cylinder after connecting with column is made to be in horizontality.It, only need to be by wheel fork when needing lateral load
Corresponding angle is rotated, then tightens bolt, the load to test wheel can be realized by lever principle in start-up loading oil cylinder.
Although this loading device is able to achieve lateral deviation load, but due to there was only 24 holes on circumference, cannot accomplish any angle side
Load partially has certain limitation.Manual rotation's clamping screw again is also needed when changing load angle simultaneously, operation is compared
It is complicated.
Summary of the invention
To overcome complicated for operation, lateral deviation load angle existing in the prior art to have limited deficiency, the present invention is mentioned
A kind of wheel fatigue test board that can laterally load is gone out.
The present invention includes bracket, decelerating motor, wheel bracket, support frame and load cylinder, further include sprocket wheel, roller chain,
Scale, curved baffle and support cylinder；The arc guide rail includes the first arc guide rail and the second arc guide rail discharged side by side,
Bracket is mounted on the upper surface of described two arc guide rails, and decelerating motor is mounted on the middle position of bracket one end end face, slows down
Sprocket wheel is fixedly installed on the output shaft of motor；The sprocket wheel is engaged with roller chain.The roller chain is mounted on curved baffle
On cascaded surface；The curved baffle is located at the first arc guide rail outer surface, and is fixed on the upper surface of support frame.It is described
Support frame has 6, on the arc-shaped lower plate for being arranged in arc guide rail one end, and is fixed by foundation bolt.Scale is fixed on
The upper surface of the curved baffle.The connecting plate for being same as connection pedestal is equipped in the interposition of the bracket the other end face, it should
Connecting plate is fixedly connected with the base by connecting pin；The aperture of connecting pin bores on the connecting plate is greater than the outer diameter of the connecting pin, makes
Therebetween there is the fit clearance of 2mm；When connection, also have 8 between the upper surface of the connecting plate and the lower surface of the pedestal
The gap of~10mm.Two support cylinders pass through link block respectively and are fixed on the two sides table that the bracket has decelerating motor one end
Face supports bracket rotation or lateral deviation by each support cylinder.It is equipped in the lower end of each support cylinder piston rod
Idler wheel.
The center in the panel width direction of the panel and the second arc guide rail of first arc guide rail has solid for installing
The through slot of tight bolt, and the through slot penetrates through the length direction of the panel.The radius of curvature and second of first arc guide rail
The radius of curvature of arc guide rail is 6150mm.
It is fixed with the wheel support guide that a pair of length direction along the bracket is arranged in the bracket upper surface, and makes this
Wheel support guide is located at frame and connect one end with pedestal.The installation branch of load cylinder is fixed in wheel support guide side
Frame, and the mounting bracket of the load cylinder is made to be located at the middle part of the bracket upper surface.It is fixed with and subtracts in one end end face of the bracket
The fixed block of speed motor is fixed with connecting plate in the other end face of the bracket.
The radius of curvature of the curved baffle is consistent with the radius of curvature of first arc guide rail 3.The curved baffle
Upper surface be second level it is ladder-like；Lower echelon face positioned at the curved baffle convex globoidal one end is the installation of the roller chain
Face.
When arranging 6 support frames, two support frames therein are located at the first arc guide rail lower plate
Both ends, at another two support frame therein is located at the top of the circular arc of the arc guide rail lower plate, remaining two support frames
It is located at the top of the circular arc of arc guide rail lower plate between both ends.
The meter full scale on the scale surface is -20~20 °.
The present invention unclamps 4 fastening nuts being located on the outside of bracket, bracket is in two support oil before lateral deviation load test
Under the action of cylinder, using the shaft of pedestal and bracket junction as fulcrum, 5~15mm is risen, bracket is made to leave arc guide rail support
Face, two idler wheels and arc guide rail contact prop up bracket at this time.Middle position is equipped with decelerating motor on the right side of bracket, slows down
Motor shaft head part is provided with sprocket wheel, is connected by key；Curved baffle is connect with support frame and with arc guide rail, on curved baffle
Surface is equipped with scale, and curved baffle side installs a set of roller chain, is fixed with pin shaft；After decelerating motor power supply, sprocket wheel
It is rotated on roller chain, bracket is pushed to rotate centered on the shaft of pedestal and bracket junction along arc guide rail, realized
Angle needed for lateral deviation, then support cylinder piston rod is packed up, and bracket drops down onto arc guide rail supporting surface, then fastens nut check,
Complete the inclined shift action of wheel bracket side.
The present invention is rotated on arc guide rail using decelerating motor drive sprocket, is limited compared to 24 location holes on circumference
Lateral loading device can arbitrarily deflect within the scope of -20~20 °, be able to satisfy the arbitrariness of lateral deviation load test lateral deviation angle.
The present invention can be done compared to traditional Driven by Hydraulic Cylinder since decelerating motor runs smoothly using decelerating motor driving bracket rotation
To servo-actuated with opening, with disconnected with the effect stopped, the accuracy of lateral deviation load test deflection angle more can guarantee in this way.Simultaneously because behaviour
Make platform on bracket, compared to the mode that traditional station fixes on the ground, operator can be with dragging in test in this way
Frame is mobile, and one people of task operating personnel of operation and observation side inclination angle can be completed, and save manpower, improves work effect
Rate.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the partial enlarged view at I position in Fig. 1.
Fig. 3 is the arrangement schematic diagram of the first arc guide rail and the second arc guide rail.
Fig. 4 is the left view of Fig. 1.
Fig. 5 is the structural schematic diagram of arc guide rail.
Fig. 6 is the top view of Fig. 5.
Fig. 7 is the structural schematic diagram of support frame.
Fig. 8 is the arrangement schematic diagram of support frame.
Fig. 9 is the cooperation schematic diagram of support frame and the first arc guide rail.
Figure 10 is the structural schematic diagram of curved baffle.
Figure 11 is the top view of Figure 10.
Figure 12 is the cooperation schematic diagram of curved baffle and support frame.
Figure 13 is the schematic diagram of scale.
Figure 14 is sprocket wheel schematic diagram.
In figure:
1. bracket；2. decelerating motor；3. the first arc guide rail；4. pedestal；5. testing wheel；6. wheel bracket；7. load
Oil cylinder；8. sprocket wheel；9. roller chain；10. scale；11. curved baffle；12. support frame；13. support cylinder；14. fastening nut；
15. idler wheel；16. wheel support guide；17. connecting plate；18. the second arc guide rail.
Specific embodiment
The present embodiment is a kind of lateral loading device of wheel fatigue test board, including bracket 1, decelerating motor 2, circular arc are led
Rail, pedestal 4, wheel 5, wheel bracket 6, load cylinder 7, sprocket wheel 8, roller chain 9, scale 10, curved baffle 11, support frame 12,
Support cylinder 13 fastens nut 14 and idler wheel 15.
The arc guide rail includes the first arc guide rail 3 and the second arc guide rail 18 discharged side by side, is the present embodiment
Carrier.Bracket 1 is mounted on the upper surface of described two arc guide rails, and decelerating motor 2 is mounted on the interposition of 1 one end end face of bracket
It sets, sprocket wheel 8 is fixedly installed on the output shaft of decelerating motor 2；The sprocket wheel is engaged with roller chain 9.The roller chain 9 is mounted on
On the cascaded surface of curved baffle 11；The curved baffle is located at 3 outer surface of the first arc guide rail, and is fixed on support frame
12 upper surface.Support frame as described above has 6, on the arc-shaped lower plate for being arranged in 3 one end of arc guide rail, and passes through foundation bolt
It is fixed.
Load cylinder 7 is fixed on the upper surface of the bracket 1；Wheel bracket 6 is placed in positioned at the bracket upper surface
On wheel support guide 16；One end of the piston rod of the load cylinder and the wheel bracket is connected；In the another of wheel bracket
One end is equipped with the mounting rack of wheel 5；Wheel 5 is mounted on the mounting rack.Scale 10 is fixed on the upper of the curved baffle 11
Surface.The connecting plate 17 for being same as connection pedestal 4 is equipped in the interposition of 1 the other end face of bracket, which passes through company
Outbound is fixedly connected with the base；The aperture of connecting pin bores on the connecting plate 17 is greater than the outer diameter of the connecting pin, makes to have therebetween
The fit clearance of 2mm；When connection, also have 8~10mm's between the upper surface of the connecting plate 17 and the lower surface of the pedestal
Gap.Two support cylinders 13 are fixed on the both side surface that the bracket has 2 one end of decelerating motor by link block respectively, pass through
Each support cylinder supports bracket rotation or lateral deviation.Idler wheel 15 is installed in the lower end of each support cylinder piston rod.
First arc guide rail 3 and the second arc guide rail 18 are mainly made of panel, bottom plate and bracket.The panel with
It is supported between bottom plate by bracket, has the through slot for penetrating through the panel length direction at the center in the panel width direction, when described
When bracket 1 is static, clamping bolt is packed into the through slot, to fix the bracket.There is fixation hole on the bottom plate.The circular arc
The length of guide rail is 4900mm, width 610mm, is highly 270mm, radius of curvature 6150mm.
The bracket 1 is frame structure, and shape is rectangle.A pair of length along the bracket is fixed in the bracket upper surface
The wheel support guide 16 of direction arrangement is spent, and so that the wheel support guide is located at frame and connect one end with pedestal 4.In the bracket
Upper surface be further fixed on the mounting bracket of load cylinder 7, and the mounting bracket of the load cylinder is made to be located at the bracket upper surface
Middle part.It is fixed with the fixed block of decelerating motor in one end end face of the bracket, is fixed with company in the other end face of the bracket
Fishplate bar 17.
The curved baffle 11 is that bar shaped is blocky.The song of the radius of curvature of the curved baffle and first arc guide rail 3
Rate radius is consistent.The upper surface of the curved baffle is that second level is ladder-like；Rudimentary rank positioned at the curved baffle convex globoidal one end
Tread is the mounting surface of the roller chain 9.
When arranging 6 support frames 12, two support frames therein are located at the first arc guide rail bottom
The both ends of plate, another two support frame therein are located at the circular arc top of the arc guide rail lower plate, remaining two supports
Frame is located at the top of the circular arc of arc guide rail lower plate between both ends.
The roller chain 9 is arc-shaped, is mounted on the roller chain mounting surface of 11 convex globoidal one end of curved baffle, and and sprocket wheel
8 engagements.
The scale 10 is fixed by screws in 11 upper surface of curved baffle and close to the roller chain mounting surface；In the mark
- 20~20 ° of scale is carved on the surface of ruler, is used to indicate the angle of lateral deviation load.
The parameters of the present embodiment are as follows: speed control range: 0~40km/h；
Load control range: 0~250KN；
Lateral deviation angle: -20~20 °；
Yaw angle: 0~20 °；
Load cylinder loads maximum travel speed: 1000m/min；
Load cylinder unloads maximum travel speed: 1460m/min；
Load transducer: interface1220-250；
Load transducer range: 250KN；
Load cylinder model: UYTF10160 × 1500-25；
Load cylinder internal diameter: φ 160；
Piston rod outer diameter: φ 110；
Load cylinder stroke: 1500mm；
Decelerating motor model: GR137R77-4-4.9；
Decelerating motor power: 4KW；
Decelerating motor revolving speed: 1500rpm；
Decelerating motor exports revolving speed: 4.9rpm；
Roller chain model: 24A-1-141；
Roller chain length: 5370mm.
The course of work of the present embodiment is: before lateral deviation load test, unclamping 4 clamping bolts being located on the outside of bracket, drags
Frame is under the action of two support cylinders, using the connecting pin between pedestal and the connecting plate of bracket one end as fulcrum, rise 5~
15mm makes bracket leave arc guide rail supporting surface, and two idler wheels and arc guide rail contact prop up bracket at this time.Positioned at bracket
The decelerating motor of one end passes through sprocket wheel.Since bracket and decelerating motor are rigid connections, the electricity that slows down is driven when bracket rises
Machine rises, and the output diameter of axle of decelerating motor is less than sprocket wheel aperture, and cooperation is between them, slows down when decelerating motor rises electric
The output shaft of machine moves in sprocket hole, and sprocket wheel is remained and engaged with roller chain；The output shaft and sprocket wheel of decelerating motor are logical
Key connection is crossed to transmit power, after decelerating motor power supply, band movable sprocket rotates, since sprocket wheel is engaged with roller chain, and roller chain
It is fixed on curved baffle, therefore sprocket wheel is rotated along roller chain, pushes the bracket to be with the shaft of pedestal and bracket junction
Center is rotated along arc guide rail, and motion profile is arc.When the lateral deviation angle needed for bracket turns to test, the electricity that slows down is closed
Machine, bracket stop operating, and then manipulate support cylinder piston rod and pack up, and bracket is made to drop down onto arc guide rail supporting surface, then solid with 4
Tight bolt locking, completes the inclined shift action of wheel bracket side.Finally start cooling blower, starting dragging system motor drives drum
Rotation, start-up loading system oil cylinder motor, plunger pump output hydraulic pressure oil push load cylinder to drive wheel bracket along wheel branch
Frame guide rail is mobile, and the wheel being mounted on wheel bracket is pressed to drum, and wheel passively rotates, i.e., carries out lateral deviation load to wheel
Test, load transducer measure oil cylinder output pressure, the i.e. load of wheel lateral deviation load.
When the commutation of hydraulic system solenoid directional control valve, load cylinder piston rod is withdrawn, and wheel is driven to leave drum, i.e. wheel
Test is exited in unloading.
During test, the extreme position that wheel moves forward or back is determined by travel switch, the limit above and below support cylinder
Position is determined by travel switch.
Claims (6)
1. the wheel fatigue test board that one kind can be loaded laterally, including bracket, decelerating motor, wheel bracket, support frame, circular arc
Guide rail and load cylinder, which is characterized in that further include sprocket wheel, roller chain, scale, curved baffle and support cylinder；The circular arc
Guide rail includes the first arc guide rail and the second arc guide rail discharged side by side, and bracket is mounted on the upper table of described two arc guide rails
Face, decelerating motor are mounted on the middle position of bracket one end end face, are fixedly installed with sprocket wheel on the output shaft of decelerating motor；It is described
Sprocket wheel is engaged with roller chain；The roller chain is mounted on the cascaded surface of curved baffle；The curved baffle is located at first circle
At arc guide rail outer surface, and it is fixed on the upper surface of support frame；Support frame as described above has 6, arc-shaped to be arranged in arc guide rail
On the lower plate of one end, and fixed by foundation bolt；Scale is fixed on the upper surface of the curved baffle；It is another in the bracket
The interposition of one end end face is equipped with the connecting plate for being same as connection pedestal, which is fixedly connected with the base by connecting pin；The company
The aperture of connecting pin bores on fishplate bar is greater than the outer diameter of the connecting pin, makes the fit clearance for having 2mm therebetween；When connection, institute
State the gap for also having 8~10mm between the upper surface of connecting plate and the lower surface of the pedestal；Two support cylinders pass through respectively
Link block is fixed on the both side surface that the bracket has decelerating motor one end, supports the bracket to rotate by each support cylinder
Or lateral deviation；Idler wheel is installed in the lower end of each support cylinder piston rod.
2. the wheel fatigue test board that can laterally load as described in claim 1, which is characterized in that first arc guide rail
Panel and the center in panel width direction of the second arc guide rail have the through slot for installing clamping bolt, and the through slot passes through
Lead to the length direction of the panel；The radius of curvature of first arc guide rail and the radius of curvature of the second arc guide rail are
6150mm。
3. the wheel fatigue test board that can laterally load as described in claim 1, which is characterized in that in the bracket upper surface
It is fixed with the wheel support guide that a pair of length direction along the bracket is arranged, and the wheel support guide is made to be located at frame and base
Seat connection one end；It is fixed with the mounting bracket of load cylinder in wheel support guide side, and makes the installation branch of the load cylinder
Frame is located at the middle part of the bracket upper surface；It is fixed with the fixed block of decelerating motor in one end end face of the bracket, in the bracket
The other end face is fixed with connecting plate.
4. the wheel fatigue test board that can laterally load as described in claim 1, which is characterized in that the song of the curved baffle
Rate radius is consistent with the radius of curvature of first arc guide rail 3；The upper surface of the curved baffle is that second level is ladder-like；It is located at
The lower echelon face of the curved baffle convex globoidal one end is the mounting surface of the roller chain.
5. the wheel fatigue test board that can laterally load as described in claim 1, which is characterized in that in 6 branch of arranging
When support, two support frames therein are located at the both ends of the first arc guide rail lower plate, another two support therein
At frame is located at the top of the circular arc of the arc guide rail lower plate, remaining two support frames are located at arc guide rail lower plate
At the top of circular arc between both ends.
6. the wheel fatigue test board that can laterally load as described in claim 1, which is characterized in that carve on the surface of the scale
There is -20~20 ° of scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821121104.8U CN208621303U (en) | 2018-07-16 | 2018-07-16 | The wheel fatigue test board that can laterally load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821121104.8U CN208621303U (en) | 2018-07-16 | 2018-07-16 | The wheel fatigue test board that can laterally load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208621303U true CN208621303U (en) | 2019-03-19 |
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ID=65705641
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821121104.8U Active CN208621303U (en) | 2018-07-16 | 2018-07-16 | The wheel fatigue test board that can laterally load |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692934A (en) * | 2018-07-16 | 2018-10-23 | 西安航空制动科技有限公司 | A kind of lateral loading device of wheel fatigue test board |
-
2018
- 2018-07-16 CN CN201821121104.8U patent/CN208621303U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692934A (en) * | 2018-07-16 | 2018-10-23 | 西安航空制动科技有限公司 | A kind of lateral loading device of wheel fatigue test board |
| CN108692934B (en) * | 2018-07-16 | 2024-02-27 | 西安航空制动科技有限公司 | Lateral loading device of machine wheel fatigue test stand |
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