CN208254818U - Half vehicle floating installation of parallel four-bar double-slider based on load feedback - Google Patents
Half vehicle floating installation of parallel four-bar double-slider based on load feedback Download PDFInfo
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- CN208254818U CN208254818U CN201820955575.2U CN201820955575U CN208254818U CN 208254818 U CN208254818 U CN 208254818U CN 201820955575 U CN201820955575 U CN 201820955575U CN 208254818 U CN208254818 U CN 208254818U
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- hinged
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Abstract
The utility model discloses a kind of half vehicle floating installations of parallel four-bar double-slider based on load feedback, including rack, active platform, and tripod is surveyed in position and platform is surveyed in position；Correspond to active platform in rack and position surveys platform and is respectively equipped with the guide rail being vertically arranged；The active platform, position are surveyed platform and are respectively placed on corresponding guide rail by sliding block；Active platform bottom is hinged by first jiao of active sliding block guide rod and active tripod, and second jiao of active tripod is hinged with rack, and passes through transmission device and connect with variable-frequency motor；The bottom of position survey platform surveys slider waveguide rod by position and position survey first jiao of tripod is hinged, and second jiao of position survey tripod is hinged with rack；The third angle of active tripod is hinged by the third angle of pull rod and position survey tripod；Position survey platform is equipped with multiple weighing sensors.The utility model is simple and reliable for structure, synchronization accuracy is high；Control response is fast, location following control realization is simple and convenient；Space layout is flexible, compact-sized.
Description
Technical field
The utility model belongs to heavy vehicle Damping Property for Suspension System experimental apparatus for testing technical field, is specifically related to
A kind of half vehicle floating installation of parallel four-bar double-slider based on load feedback.
Background technique
Vehicle suspension system performance is on active service to occupant's riding comfort, reduction internal car noise and extension vehicle is improved
Period all has great influence.The suspensions key technology such as vehicle suspension parameters optimization and control strategy selection all needs passage capacity real
Verifying.Existing suspension experiment mostly carries out loading experiment using 1/4 auto model or vehicle, but uses 1/4 vehicle mould
The suspension behavior result and actual deviation of type are very big, and vehicle weighted platform is at high cost, more very particularly with heavy vehicle.
It is to solve the contradiction to the suspension performance test that vehicle carries out half vehicle load, ensures heavy vehicle suspension
The effective ways of performance test accuracy and economy.But vehicle how to ensure when the load of half vehicle the other half position
Follow be this method realize great difficult problem.Patent ZL201410828974.9 is proposed under the pressure of the problem and is built half vehicle again
The suspension performance test mode that model is loaded can only simulate half vehicle suspension performance test, also cannot achieve reality
The load suspension test of half vehicle of vehicle.Half truck position follow technology be protect the success of the test of positive half vehicle suspension behavior of real vehicle carry out there is an urgent need to
The key technology of solution.
Utility model content
In order to solve the above-mentioned technical problem, the utility model, which provides one kind, can ensure that heavy vehicle vehicle carries out half vehicle and adds
The accuracy of the realization and test result that carry suspension performance test methods is with economy based on the parallel of load feedback
Four bar double-sliders, half vehicle floating installation.
The technical solution adopted in the utility model is: a kind of half vehicle of parallel four-bar double-slider floating dress based on load feedback
It sets, including rack, active tripod, active platform, guide rail, tripod is surveyed in position and platform is surveyed in position；Correspond in rack actively flat
Platform and position survey platform and are respectively equipped with the guide rail being vertically arranged；The active platform, position survey platform and are respectively placed in phase by sliding block
On corresponding guide rail；
Active platform bottom and active sliding block guide rod upper end are hinged, and the first of active sliding block lower end of the guide rod and active tripod
Angle is hinged, and second jiao of active tripod is hinged with rack, and is connect by transmission device with variable-frequency motor；The bottom of position survey platform
Portion surveys first jiao of hinged, position survey tripod that slider waveguide rod upper end is hinged, and tripod is surveyed with position in position survey slider waveguide rod lower end with position
Second jiao it is hinged with rack；The third angle of active tripod and one end of pull rod are hinged, and triangle is surveyed in the other end of pull rod and position
The third angle of frame is hinged；Position survey platform is equipped with multiple weighing sensors.
In the above-mentioned half vehicle floating installation of parallel four-bar double-slider based on load feedback, the interposition that platform is surveyed in position is installed
There are uniformly distributed multiple weighing sensors.
In the above-mentioned half vehicle floating installation of parallel four-bar double-slider based on load feedback, the transmission device includes method
Blue, force transmission shaft and right angle reductor；The flange is mounted at second jiao of active tripod, and one end of force transmission shaft and flange connect
It connects, the output axis connection of the other end and right angle reductor, the input shaft of right angle reductor is connect with variable-frequency motor.
In the above-mentioned half vehicle floating installation of parallel four-bar double-slider based on load feedback, flange is equipped with a pair of of groove,
The end of force transmission shaft towards active tripod is corresponding to be equipped with a pair of of groove, and force transmission shaft is connect with flange by force-transmitting block, is passed
Power block is placed in the groove of flange and force transmission shaft.
In the above-mentioned half vehicle floating installation of parallel four-bar double-slider based on load feedback, right angle reductor and variable-frequency motor
It is mounted in active platform mounting base, active platform mounting base bottom is fixed on bottom of the frame；The guide rail is rolled using straight line
Pearl guide rail；Variable-frequency motor is using strap brake variable-frequency motor.
Compared with prior art, the utility model has the beneficial effects that
1. the half vehicle floating installation of parallel four-bar double-slider based on load feedback of the utility model uses parallel four-bar knot
Position when structure drives two crank blocks being arranged symmetrically to realize real vehicle excitation is synchronous, simple and reliable for structure, mechanical synchronization precision
It is high；
2. the half vehicle floating installation location following of parallel four-bar double-slider based on load feedback of the utility model is using more
The load of point average load judges information, differentiates that contact condition, control motor lead agency realize that half vehicle floats according to force feedback,
Control response is fast, it is simple and convenient to realize；
3. the half vehicle floating installation of parallel four-bar double-slider based on load feedback of the utility model is transmitted using force-transmitting block
Torque, the connection of force transmission shaft and active tripod is simple, convenient disassembly；
4. the half vehicle floating installation of parallel four-bar double-slider based on load feedback of the utility model uses strap brake frequency conversion
Motor connects the driving method of right angle reductor, and space layout is flexible, compact-sized.
Detailed description of the invention
Fig. 1 is the isometric view of the utility model.
Fig. 2 is the main view of the utility model.
Fig. 3 is the top view of the utility model.
Fig. 4 is the right view of the utility model.
Fig. 5 is the utility model A-A cross-sectional view.
Fig. 6 is the schematic diagram of the utility model mechanism.
Fig. 7 is the flow chart of the half truck position follower method of the utility model.
In figure: 1, rack, 2, active platform support, 3, right angle reductor, 4, strap brake variable-frequency motor, 5, active tripod,
6, active sliding block guide rod, 7, active platform, 8, straight ball-guide, 9, parallel draw bar, 10, position scaffold tower support, 11, position survey triangle
Frame, 12, position survey slider waveguide rod, 13, position survey platform, 14, weighing sensor, 15, end cap, 16, bearing inner race spacer ring, 17, bearing
Outer ring spacer ring, 18, bearing, 19, force-transmitting block, 20, transmission shaft.
Specific embodiment
The utility model will be further described below with reference to the accompanying drawings.
As shown in figures 1 to 6, the half vehicle floating installation of parallel four-bar double-slider based on load feedback of the utility model includes
Tripod is surveyed in rack 1, active tripod 5, active platform support 2, tracking platform, straight ball-guide 8, position scaffold tower support 10, position
11 and weighing sensor 14, tracking platform includes that platform 13 is surveyed in active platform 7 and position.The section of the rack 1 is in U-shape, machine
It is set vertically respectively on the opposite face of frame 1 there are two straight ball-guide 8, it is opposite that platform 13 is surveyed in the active platform 7 and position
Side is arranged on corresponding straight ball-guide 8 by sliding block.
7 lower part of active platform is symmetrically arranged with two hinge ears, is cut with scissors with the upper end of two active sliding block guide rods 6 by pin shaft
It connects, 6 lower end of active sliding block guide rod is hinged by pin shaft and 5 first jiaos of active tripod, and second jiao of active tripod 5 is hinged on
In rack 1, flange is equipped at second jiao, flange is equipped with a pair of of groove, and force transmission shaft 20 is equipped with towards flange one end is corresponding
A pair of of groove, force transmission shaft 20 are connect with flange by force-transmitting block 19, and force-transmitting block 19 is placed in the groove of force transmission shaft 20 and flange.It passes
Two bearings 18 are installed, bearing 18 is fixed in 2 mounting hole of active platform mounting base, and the outer two sides of mounting hole are equipped with end cap on power axis 19
15, end cap 15 is connect by bearing inner race spacer ring 16 with bearing 18, and two bearings 18 are positioned by bearing outer ring spacer ring 16, force transmission shaft
19 other ends set spline, are connected with the output shaft of right angle reductor 2, and the input shaft of right angle reductor 2 passes through shaft coupling and band
The variable-frequency motor 4 that brakes connects.The right angle reductor 2 and strap brake variable-frequency motor 4 is mounted in active platform mounting base 2, main
Dynamic 2 bottom of platform mounting base is fixed in 1 rack of pedestal.
The position surveys 13 bottom of platform and also is provided with two hinge ears, and two hinge ears are surveyed on slider waveguide rod 12 with a position respectively
End is hinged, and first jiao of hinged, second jiao and machine of position survey tripod 11 that tripod 11 is surveyed with position in 12 lower end of slider waveguide rod are surveyed in position
Position scaffold tower support 10 on frame 1 is hinged.The third angle of active tripod 5 and one end of pull rod 9 are hinged, the other end of pull rod 9 with
The third angle that tripod 11 is surveyed in corresponding position is hinged.Middle is set there are three weighing sensor 14 on position survey platform 13, and three
Weighing sensor 14 is evenly arranged.
The half truck position follower method of the utility model, operating procedure are as follows:
1) it is padded with two pieces of stack pile support plates and is surveyed on platform 13 in active platform 7 and position respectively first, demarcate three weighings
Vehicle to be measured is lifted and is placed on the device, and keep vehicle bottom vehicle frame symmetrically flat with active to 0 by the acquisition data of sensor 14
Platform 7 and position are surveyed platform 13 and are contacted, and wherein exciting side is surveyed platform 13 by peri position and is arranged.
2) as shown in fig. 7, when half vehicle floating model- following control, the first displacement by half vehicle sine excitation signal and frequency values, root
According to the working frequency f of follow up speed determining strap brake variable-frequency motor equal with maximum excitation speed:
In formula: f- is variable-frequency motor working frequency；F- excited frequency；The displacement of S- exciting；K- transformation of speed coefficient；L1It is main
Dynamic first jiao of hinge centres of tripod are at a distance from second jiao of hinge centres；L2The hinge centres at active sliding block guide rod both ends
The distance between；The distance between hinge centres and active platform vertical centerline at second jiao of e- active tripod；θ-active
At first jiao of tripod at hinge centres and second jiao hinge centres line and vertical direction angle.
3) measuring signal for acquiring weighing sensor 14 is determined that obtaining load differentiates signal by mean value calculationIt is public
Formula is as follows:
In formula,Load differentiates signal；miThe average value of-i-th sensor measurement.
4) platform 13 and floor underframe for vehicle relative position are surveyed in differentiation position, connect when load differentiates that signal value is greater than 0 and is not more than
Touching differentiates upper limit value psxWhen, 4 brake of strap brake variable-frequency motor stops；When load differentiates signal less than 0, strap brake frequency conversion
The brake of motor 4 is unclamped, and strap brake variable-frequency motor 4 inverts, and drives active platform 7 to rise by active tripod 5, active platform 7
With closely testing vehicle frame；When load differentiates that signal is greater than contact and differentiates upper limit value psxWhen, the brake of strap brake variable-frequency motor 4 is unclamped, band
The variable-frequency motor 4 that brakes rotates forward, and drives active platform 7 to decline by active tripod 5, and active platform 7 is far from test vehicle frame.Its
In: contact differentiates upper limit value psxCalculation formula is as follows:
In formula, M- car body mass；N- wheel number.
Claims (5)
1. a kind of half vehicle floating installation of parallel four-bar double-slider based on load feedback, it is characterized in that: including rack, active triangle
Frame, active platform, guide rail, tripod is surveyed in position and platform is surveyed in position；Correspond to active platform in rack and position is surveyed platform and is respectively equipped with
The guide rail being vertically arranged；The active platform, position are surveyed platform and are respectively placed on corresponding guide rail by sliding block；
Active platform bottom and active sliding block guide rod upper end are hinged, first jiao of hinge of active sliding block lower end of the guide rod and active tripod
It connects, second jiao of active tripod is hinged with rack, and is connect by transmission device with variable-frequency motor；Position survey platform bottom with
Position surveys that slider waveguide rod upper end is hinged, position survey slider waveguide rod lower end and position survey first jiao of tripod it is hinged, the of position survey tripod
Two jiaos hinged with rack；The third angle of active tripod and one end of pull rod are hinged, and tripod is surveyed in the other end of pull rod and position
The third angle is hinged；Position survey platform is equipped with multiple weighing sensors.
2. the parallel four-bar double-slider half vehicle floating installation according to claim 1 based on load feedback, it is characterized in that: position
The middle position for surveying platform is equipped with uniformly distributed multiple weighing sensors.
3. the parallel four-bar double-slider half vehicle floating installation according to claim 1 based on load feedback, it is characterized in that: institute
The transmission device stated includes flange, force transmission shaft and right angle reductor；The flange is mounted at second jiao of active tripod, is passed
The output axis connection of one end of power axis and flanged joint, the other end and right angle reductor, the input shaft of right angle reductor and frequency conversion
Motor connection.
4. the parallel four-bar double-slider half vehicle floating installation according to claim 3 based on load feedback, it is characterized in that: method
Orchid is equipped with a pair of of groove, and the end of force transmission shaft towards active tripod is corresponding to be equipped with a pair of of groove, force transmission shaft and flange
It is connected by force-transmitting block, force-transmitting block is placed in the groove of flange and force transmission shaft.
5. the parallel four-bar double-slider half vehicle floating installation according to claim 3 based on load feedback, it is characterized in that: directly
Angle speed reducer and variable-frequency motor are mounted in active platform mounting base, and active platform mounting base bottom is fixed on bottom of the frame；Described
Guide rail is using straight ball-guide；Variable-frequency motor is using strap brake variable-frequency motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820955575.2U CN208254818U (en) | 2018-06-21 | 2018-06-21 | Half vehicle floating installation of parallel four-bar double-slider based on load feedback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820955575.2U CN208254818U (en) | 2018-06-21 | 2018-06-21 | Half vehicle floating installation of parallel four-bar double-slider based on load feedback |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208254818U true CN208254818U (en) | 2018-12-18 |
Family
ID=64654664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820955575.2U Expired - Fee Related CN208254818U (en) | 2018-06-21 | 2018-06-21 | Half vehicle floating installation of parallel four-bar double-slider based on load feedback |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208254818U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535030A (en) * | 2018-06-21 | 2018-09-14 | 湖南科技大学 | A kind of half vehicle floating installation and half truck position follower method based on load feedback |
| CN111751101A (en) * | 2020-07-03 | 2020-10-09 | 北京无线电测量研究所 | Deformation test force transmission mechanism and deformation test device comprising same |
-
2018
- 2018-06-21 CN CN201820955575.2U patent/CN208254818U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535030A (en) * | 2018-06-21 | 2018-09-14 | 湖南科技大学 | A kind of half vehicle floating installation and half truck position follower method based on load feedback |
| CN108535030B (en) * | 2018-06-21 | 2023-09-05 | 湖南科技大学 | Half-vehicle floating device based on load feedback and half-vehicle position following method |
| CN111751101A (en) * | 2020-07-03 | 2020-10-09 | 北京无线电测量研究所 | Deformation test force transmission mechanism and deformation test device comprising same |
| CN111751101B (en) * | 2020-07-03 | 2022-02-01 | 北京无线电测量研究所 | Deformation test force transmission mechanism and deformation test device comprising same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181218 Termination date: 20210621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |