CN206430918U - Axle load analog control device based on brake platform lift height Yu axletree loading force correlation model - Google Patents
Axle load analog control device based on brake platform lift height Yu axletree loading force correlation model Download PDFInfo
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- CN206430918U CN206430918U CN201720100554.8U CN201720100554U CN206430918U CN 206430918 U CN206430918 U CN 206430918U CN 201720100554 U CN201720100554 U CN 201720100554U CN 206430918 U CN206430918 U CN 206430918U
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- 238000001514 detection method Methods 0.000 claims abstract description 26
- 238000006073 displacement reaction Methods 0.000 claims description 52
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- 239000010959 steel Substances 0.000 claims description 37
- 238000005303 weighing Methods 0.000 claims description 25
- 230000003321 amplification Effects 0.000 claims description 14
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 14
- 230000002787 reinforcement Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 6
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- 238000004804 winding Methods 0.000 claims description 3
- 230000001070 adhesive Effects 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims description 2
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- 238000004088 simulation Methods 0.000 abstract description 2
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- 239000011159 matrix material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000001105 regulatory Effects 0.000 description 5
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- 241000244423 Pteris cretica Species 0.000 description 1
- 210000002435 Tendons Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
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Abstract
Axle load analog control device and method of the utility model based on brake platform lift height and axletree loading force correlation model, drum braking platform include the locked system of electric-controlled type machine automatization (A), guider (B), brake platform lift height monitoring device (C), drum-type brake platform lowering or hoisting gear (D), data acquisition processing system and control system.According to the incidence relation between brake platform lift height x and axletree loading force F, i.e. x F correlation models, control braking stage body lifting, so as to carrying out simulation loading in measuring car axle, can accurately automatically control loading axle load；Realize that brake platform is rigidly connected with lifting stand by the locked system of electric-controlled type machine automatization, eliminate air bag plastic deformation influence factor, realize the purpose of the accurate detection vehicle braking performances on loading brake tester.The utility model can realize that multiple-axle vehicle braking ability is quick and precisely detected.The device can be widely applied to automotive check, experiment and scientific research institution.
Description
Technical field
The utility model is the axle load analog control device of brake platform lift height and axletree loading force correlation model, according to
National regulations, braking stage body is to that when measuring car axle is loaded, can obtain the pass between brake platform lift height x and loading force F
Connection relation, can accurately automatically control loading axle load, by the locked system balance error of electric-controlled type machine automatization, reach vehicle in gas
The effect of accurate detection vehicle braking performances on capsule lifting type loading brake tester.So as to detect vehicle braking exactly
Can, belong to automobile brake perfrmance detection technique field.
Background technology
Existing automobile brake perfrmance detection, axletree reaches drum braking platform and carries out braking inspection after being weighed on the counterweight table of ground
Survey.By national standard GB7258-2012《Motor vehicle safe and technical specification》Examine required braking force, front axle braking force and front axle load
Percentage requirement be more than or equal to 60%, and definition：Before axle before motor vehicle (bicycle) longitudinal centre line center is
Axle, other axles are rear axle；All axletrees of trailer press rear axle calculating；So, double steering shaft is all front axle, and braking ratio per axle will
Ask more than or equal to 60%, the braking ratio per axle of all axletrees of trailer is required more than or equal to 50%, the requirement of vehicle braking ratio is more than etc.
In 60%.However, experiment shows：Can be by the first steering spindle and the 3rd shaft portion during the second steering shaft detection of double steering shaft vehicle
It is built on stilts, greatly reduce adhesion weight, it is difficult to meet the detection requirement of the braking ratio of front axle 60%.
Trailer is pulled under detection state in tractor, equally by axle portion before the second axle and tractor during three shaft detection of trailer
Divide built on stilts, be not only difficult to the detection requirement for reaching 50% braking ratio per axle, it is also difficult to reach the detection requirement of 60% vehicle braking ratio.
Even if the braking ability of vehicle is very well, adhesion weight, which reduces, reduces detection maximum braking force, with being weighed on the counterweight table of ground
The ratio between braking ratio per axle reduce and be difficult to up to standard, cause false retrieval to misjudge.
Utility model content
The utility model provides a kind of axle load based on brake platform lift height and axletree loading force correlation model and simulates control
Device processed.Main purpose is braking stage body to when measuring car axle is loaded, automatic accurate regulation passes through electricity in measuring car axle wheel weight
The locked system balance error of control formula machine automatization, braking stage body with lifting stand be changed into from flexible connection be rigidly connected, stably
Property is increased substantially.Reach that vehicle loads the effect of accurate detection vehicle braking performances on brake tester in air bag lifting type.
The challenge of brake tester measurement accuracy is loaded for how to improve air bag lifting type, it is proposed that locked to electric-controlled type machinery
Mechanism, guider, brake platform position monitoring device, the mechanical structure of roller brake tester lifting device, circuit control
In terms of brand-new design.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions, and is described with reference to the drawings as follows：
A kind of axle load analog control device based on brake platform lift height Yu axletree loading force correlation model, by electric-controlled type
The locked system A of machine automatization, guider B, brake platform position monitoring device C, brake platform lowering or hoisting gear D, data acquisition process
System and control system composition, the locked system A of electric-controlled type machine automatization, guider B and brake platform lowering or hoisting gear D difference
It is arranged on 4 angles of roller brake tester 18, the brake platform position monitoring device C is arranged in 1 of control device
On angle；
The locked system A of electric-controlled type machine automatization is multiple, and structure is identical, is arranged in 18 liang of roller brake tester
At the U-frame frame 22 at end, for locked to the lift height of U-frame frame 22 in brake platform lowering or hoisting gear D, and pass through brake platform
Position monitoring device C detects brake platform lift location；
The guider B is arranged in the two ends of roller brake tester 18, by guided way core 29 and guide rail 30
Composition, is slidably matched, centre is provided with spreader groove using V-arrangement；
The brake platform position monitoring device C is arranged on one jiao of roller brake tester 18, the brake platform position
Monitoring device C lower end is fixed on air bag fixed frame 26, and its upper end is fixed on U-frame frame 22, the brake platform position
The telescopic direction of displacement transducer 44 in monitoring device C is consistent with the rise and fall direction of roller brake tester 18；
The brake platform lowering or hoisting gear D is mainly made up of U-frame frame 22 and air bag 24；
The data acquisition processing system is used to gather axle weight and braking force signal, including signal amplification module 5, analog quantity
Terminal plate 7, analog acquisition card 13 and industrial computer 14；
The control system includes digital output card 2, magnetic valve 3 and electromagnet 1.
The locked system A of electric-controlled type machine automatization totally 8, has 4 groups, every 2 groups of lockings, one U-frame frame by 2 one group
22。
The locked system A of electric-controlled type machine automatization is by the rack 21 on U-frame frame 22 and installed in locking dress
The ratchet 20 on support frame 25, steel sheet spring 19 are put, loosens the arm of force 23, electromagnet 1 and constitutes, the ratchet 20 is rotated by ratchet
Axle 34 is provided with spacing hole 36 with loosening on the concentric cooperation of the arm of force 23, the locking device support frame 25 at ratchet rotary shaft 34,
It is arranged on the key 35 that ratchet rotary shaft 34 is interference fitted in spacing hole 36, the ratchet 20 passes through the active force of steel sheet spring 19
Combined with rack 21, the adhesive being powered by electromagnet 1 with loosening the arm of force 23 is separated with rack 21；
The side of locking device support frame 25 longitudinally couples channel-section steel 38 with support frame by the stable channel-section steel 27 of support frame and consolidated
Fixed to be connected, the rear side of locking device support frame 25 is fixedly linked with support frame reinforcement 41, and support frame reinforcement 41 is indulged with support frame
It is fixedly linked to connection channel-section steel 38.
The guider B is made up of guided way core 29 and guide rail 30, and the guided way core 29 is fixed on U-frame frame
22 both sides, the guide rail 30 is bolted to the upper end of air bag fixed frame 26 by guide rail elongated hole bearing 49, is oriented to
Installation elongated hole 51 on track elongated hole bearing 49 is used for adjusting the installation site of guide rail elongated hole bearing 49；Guider B has
4, overlapped per two guider B of longitudinal direction longitudinal centre line with the longitudinal centre line of air bag 24.
The brake platform position monitoring device C is on displacement transducer 44, displacement transducer fixed plate 45, displacement transducer
End plate 46 and displacement transducer fixed mount 47 are constituted, and institute's displacement sensors fixed mount 47 is arranged on displacement transducer 44, position
Displacement sensor fixed mount 47 is by the way that in screw-nut fix in position displacement sensor fixed plate 45, displacement transducer fixed plate 45 is fixed
On air bag fixed frame 26, displacement transducer upper head plate 46 is fixedly linked with U-frame frame 22, institute's displacement sensors fixed plate
45 both sides are provided with multiple mounting holes, the installation site for adjusting displacement transducer 44.
The brake platform lowering or hoisting gear D is by U-frame frame 22, air bag 24, air bag fixed frame 26, weighing sensor 28, gas
Capsule lifting axis 31, air bag bottom terminal pad 32, at the top of air bag terminal pad 37, support frame longitudinally connection channel-section steel 38, side channel-section steel 39,
Vertical slot steel 40 is constituted,
The two ends of U-frame frame 22 are connected by weighing sensor 28 and air bag lifting axis 31 with air bag 24, the air bag
24 are fixed to the inside of air bag fixed frame 26,22 liang of U-frame frame by terminal pad 37 at the top of air bag and air bag bottom terminal pad 32
By support frame, longitudinally connection channel-section steel 38 is connected the air bag fixed frame 26 at end, and the air bag of two the same sides of U-frame frame 22 is consolidated
Determine framework 26 to be connected by side channel-section steel 39, the air bag 24 drives drum-type system by U-frame frame 22 and weighing sensor 28
Dynamic platform 18 rises.
The data acquisition processing system includes signal amplification module 5, analog quantity terminal plate 7, the and of analog acquisition card 13
Industrial computer 14, the signal amplification module 5 and the weighing sensor 28 on brake platform lowering or hoisting gear D, the phase of braking force sensor 9
Even, analog quantity terminal plate 7 is connected by winding displacement with signal amplification module 5 and analog acquisition card 13, and installed in industrial computer
In 14ISA slots, industrial computer 14, analog quantity terminal plate 7 and signal amplification module 5 are placed in switch board 43.
The control system includes digital output card 2, magnetic valve 3 and electromagnet 1, and the digital output card 2 is installed
It is connected in industrial computer 14ISA slots, and with magnetic valve 3 and electromagnet 1, the magnetic valve 3 and electromagnet 1 are lifted with brake platform
Device D is connected.
Simulated and controlled using axle load of the above-mentioned control device based on brake platform lift height and axletree loading force correlation model
Method processed, it is characterised in that：Including step in detail below：
Equipment zeroing in step 1, data acquisition processing system, collection axle weight and braking force signal
When vehicle enters before detection place, the locked system A of electric-controlled type machine automatization electromagnet 1 is not powered, ratchet 20
The nethermost teeth groove of rack 21 is locked at, now data acquisition processing system can try brake platform lowering or hoisting gear 2, drum-type braking
Test the axle weight of platform 18, brake force and be uniformly set to zero, brake platform position monitoring device C lifting height initial value is set to zero, when
Vehicle enters behind detection place, and the prompting vehicle of dot matrix screen 12 drives into roller brake tester 18 in measuring car axle, when detection axletree
During in roller brake tester 18, now industrial computer 14 detects the proximity switch for receiving roller brake tester 18
The signal in place of roller brake tester 18 is reached to Vehicle Axles.
The highly automated regulation of step 2, detection wheel on roller brake tester
After multiple-axle vehicle enters roller brake tester 18, industrial computer 14 has detected vehicle in place, industrial computer
14 realize that brake platform lowering or hoisting gear D air bags 24 are inflated by magnetic valve 3, and roller brake tester 18 highly rises, herein mistake
Cheng Zhong, the locked system A of electric-controlled type machine automatization ratchet 20 stick into rack 21, brake platform position monitoring device C and weighing and sensing
The loading axis weight that device 28 samples the constantly lifting height of recording drum formula brake tester 18 and weighing sensor 28, until rolling
The actual lifting height of cartridge type brake tester 18 reaches that air bag 24 stops when limit value or the measured value of weighing sensor 28 reach limit value
Only inflate；Now, control system can obtain actual x-F correlation models, according to the model, and system is obtained according to Standard
The deformation quantity of accurate displacement transducer 44, that is, load lift height.After vehicle-state is stable, air bag starts to deflate, brake platform
Body highly drops to object height, and the locked system A of electric-controlled type machine automatization is automatically locked braking stage body, braking stage body and lift master
The annexation of frame is changed into being rigidly connected from being flexibly connected.
Step 3, vehicle measure the detection of axle braking force
After the completion of the highly automated regulation of roller brake tester 18, point out to drive by the display information of dot matrix screen 12
Member's brake, now sampled data is sent to data acquisition processing system by the braking force sensor of roller brake tester 18, meter
Calculate brake force F now；After vehicle is totally stationary, dot matrix, which shows 12 display screen, will show vehicle braking force, industrial computer 14 it is aobvious
Show that axle weight occurs in device interface and braking force signal changes over time the curve of relation.After data acquisition terminates, electromagnet 1 leads to
Electricity, loosens the arm of force 23 under the effect of electromagnet 1 along rotate counterclockwise certain angle, you can unclamp 21 locking to rack, so
Rear gasbag 24 is deflated, and the height of roller brake tester 23 drops to initial height, and detected vehicle rolls brake platform away from.
The axle load analog control device and method of brake platform lift height and axletree loading force correlation model are accurate with energy
Control roller brake tester lifting height, it is simple, convenient, fast to the transformation of existing drum braking platform, substantially increase
The advantages of multiple-axle vehicle braking performance test accuracy.
The beneficial effects of the utility model are compared with prior art：
1st, in vehicle wheel weight automatic regulating apparatus described in the utility model, design and locked using electric-controlled type machine automatization
System, is not only able to prevent the generation of the fortuitous event caused by the reasons such as air bag, tracheae explosion in brake platform uphill process, more
It is important to accurate resting barrel formula brake tester position, so as to improve the test essence of drum-type brake test bench
Degree.
2nd, in vehicle wheel weight automatic regulating apparatus described in the utility model, new guide rail device, the dress are employed
Put with the characteristics of frictional resistance is small, the impact of resistance to vertical direction is strong, the direction not only increased in brake platform uphill process is stable
Property, more improve the measuring accuracy of drum-type brake test bench.
3rd, in vehicle wheel weight automatic regulating apparatus described in the utility model, brake platform position monitoring device is employed, when
When feed back drum-type brake platform lifting height, so that the accurate control of drum-type brake platform lifting height is realized, so as to improve rolling
The measuring accuracy of cartridge type brake test bench.
4th, in vehicle wheel weight automatic regulating apparatus described in the utility model, using air bag as power set, U-shaped is passed through
Framework drive brake platform rises, and air bag has the advantages that to respond fast, control simplicity, so as to improve drum-type brake inspection
The operating efficiency of platform.
5th, in vehicle wheel weight automatic regulating apparatus described in the utility model, four weighing sensors are individually positioned in
The both sides of U-frame frame, do not have difference in height by weighing sensor and U-frame frame in same level, sufficiently make use of U-frame
Frame produces torque to weighing sensor, test accuracy of the weighing sensor in detection can be directly improved, so as to improve roller
The measuring accuracy of formula brake test bench.
Brief description of the drawings
The utility model is further described below in conjunction with the accompanying drawings：
Fig. 1 is Automobile Braking Force Detecting flow chart described in the utility model；
Fig. 2 is that the axle load described in the utility model based on brake platform lift height and axletree loading force correlation model is simulated
The overall axle surveys view of control device and method；
Fig. 3 is that the axle load described in the utility model based on brake platform lift height and axletree loading force correlation model is simulated
The overall top view of control device and method；
Fig. 4 is that the axle load described in the utility model based on brake platform lift height and axletree loading force correlation model is simulated
The front view of control device and method lifting device；
Fig. 5 is that the axle load described in the utility model based on brake platform lift height and axletree loading force correlation model is simulated
The left view of control device and method lifting device；
Fig. 6 is that the axle load described in the utility model based on brake platform lift height and axletree loading force correlation model is simulated
The top view of the lifting device of control device and method；
Fig. 7 is that the axle load described in the utility model based on brake platform lift height and axletree loading force correlation model is simulated
The left view of one group of locked system of electric-controlled type machine automatization of control device and method；
Fig. 8 is that the axle load described in the utility model based on brake platform lift height and axletree loading force correlation model is simulated
The left view of the locked system of electric-controlled type machine automatization of control device and method；
Fig. 9 is that the axle load described in the utility model based on brake platform lift height and axletree loading force correlation model is simulated
The front view of the locked system of electric-controlled type machine automatization of control device and method；
Figure 10 is the axle load mould described in the utility model based on brake platform lift height Yu axletree loading force correlation model
Intend the top view of the locked system of electric-controlled type machine automatization of control device and method；
Figure 11 is the axle load mould described in the utility model based on brake platform lift height Yu axletree loading force correlation model
Intend the partial rear view of the locked system of electric-controlled type machine automatization of control device and method；
Figure 12 is the axle load mould described in the utility model based on brake platform lift height Yu axletree loading force correlation model
Intend the front view of the guider of control device and method；
Figure 13 is the axle load mould described in the utility model based on brake platform lift height Yu axletree loading force correlation model
Intend the left view of the guider device of control device and method；
Figure 14 is the axle load mould described in the utility model based on brake platform lift height Yu axletree loading force correlation model
Intend the top view of the guider device of control device and method；
Figure 15 is the axle load mould described in the utility model based on brake platform lift height Yu axletree loading force correlation model
Intend control device and method brake platform position monitoring device and front view is installed；
Figure 16 is the axle load mould described in the utility model based on brake platform lift height Yu axletree loading force correlation model
Intend control device and method brake platform position monitoring device and left view is installed；
Figure 17 is the axle load mould described in the utility model based on brake platform lift height Yu axletree loading force correlation model
Intend control device and method brake platform position monitoring device front view；
Figure 18 is the axle load mould described in the utility model based on brake platform lift height Yu axletree loading force correlation model
Intend control device and method brake platform position monitoring device left view；
In figure：A. the locked system of electric-controlled type machine automatization, B. guiders, C. brake platform position monitoring devices, D. brakings
Platform lowering or hoisting gear, 1. electromagnet, 2. digital output cards, 3. magnetic valves, 4. brake tester lift height displacements, 5. signals are put
Big module, 6. weighing sensors loading axle load, 7. analog quantity terminal plates, 9. braking force sensors, 12. dot matrix display screens, 13.
Analog acquisition card, 14. industrial computers, 18. roller brake testers, 19. steel sheet springs, 20. ratchets, 21. racks, 22.U
Shape framework, 23. loosen the arm of force, 24. air bags, 25. locking device support frames, 26. air bag fixed frames, 27. support frame gutters
Steel, 28. weighing sensors, 29. guided way cores, 30. guide rails, 31. air bag lifting axis, 32. air bag bottom terminal pads, 33.
Terminal pad at the top of guide rail elongated hole bearing, 34. ratchet rotary shafts, 35. keys, 36. spacing holes, 37. air bags, 38. support frames are indulged
To connection channel-section steel, 39. side channel-section steels, 40. vertical slot steel, 41. support frame reinforcements, 43. industrial computer racks, 44. displacement transducers,
45. displacement transducer fixed plate, 46. displacement transducer upper head plates, 47. displacement transducer fixed mounts, 48. displacement transducers are installed
Hole, 49. guide rail elongated hole bearings, 50. track fixing bolts, 51. install elongated hole, 53. displacement transducer connecting plates
Embodiment
It is shown below in conjunction with the accompanying drawings that specific device embodiments of the present utility model are further described.
The axle load simulation that the utility model provides a kind of brake platform lift height and axletree loading force correlation model is controlled
Device and method, it is possible to increase the accuracy of vehicle braking performances detection.Including the locked system A of electric-controlled type machine automatization, it is oriented to
Device B, brake platform position monitoring device C, brake platform lowering or hoisting gear D, data acquisition processing system and control system.
The locked system A of electric-controlled type machine automatization includes electromagnet 1, steel sheet spring 19, ratchet 20, rack 21, loosened
The stable channel-section steel 27 of the arm of force 23, locking device support frame 25, support frame, ratchet rotary shaft 34, key 35, spacing hole 36, support frame add
Strengthening tendons 41, reinforcement fixed cross beam 42.Refering to Fig. 7,8,9,10,11, ratchet 20 and loosen the arm of force 23 and pass through ratchet rotary shaft 34
Concentric to coordinate, the assembly of key 35 and ratchet rotary shaft 34 is arranged in spacing hole 36,19 points of electromagnet 1 and steel sheet spring
Not and loosen the arm of force 23 and form the side that different angles are fixed on locking device support frame 25, the left and right side of support frame 25 passes through branch
Longitudinally connection channel-section steel 38 is connected the stable channel-section steel 27 of support with support frame, and the rear side of support frame 25 welds phase with support frame reinforcement 41
Even, support frame reinforcement 41 is connected by welding with reinforcement fixed cross beam 42.
The locked system A of electric-controlled type machine automatization totally 8, has 4 groups, every 2 groups of electric-controlled type machine automatizations by 2 one group
Locked system A can be with one U-frame frame 22 of locking.In order to increase the intensity of locking device support frame 25, electric-controlled type machine automatization
Locked system A has the stable channel-section steel 37 of 2 support frames, in order to increase the stability of locking device support frame 25, electric-controlled type machinery
The longitudinally mounted support frame reinforcements 41 of the system that is automatically locked A.The working range of ratchet 20 passes through key 35 and ratchet rotary shaft 34
Assembly is limited by spacing hole 36, and rack tooth is away from for 5mm, when not raising brake platform, the tooth of ratchet 20 and the bottommost of rack 21
Groove coordinates, and brake platform position monitoring device C sets lifting height initial value to be zero；In brake platform uphill process, rack 21 follows U
Shape framework is moved vertically about 22, and ratchet 20 is constantly pinned rack in the uphill process of rack 21 by the effect of steel sheet spring 19
21, therefore brake platform can be accurately fixed in different height.After detection terminates, electromagnet 1 is powered, and attraction is produced to loosening the arm of force 23
Effect, loosens the arm of force 23 with pawl 20 to rotate counterclockwise certain angle, unclamps 21 locking to rack, air bag 24 is put
Gas, roller brake tester 18 falls after rise.
The guider B includes guided way core 29, guide rail 30, guide rail elongated hole bearing 49, and track fixes spiral shell
Bolt 50, installation elongated hole 51.Refering to Figure 12,13,14, guided way core 29 is welded to connect with the two sides of U-frame frame 22, guide rail
30 are welded to connect with guide rail elongated hole bearing 49, and guide rail elongated hole bearing 49 is fixed on air bag by fixing bolt 50 and fixed
Above framework 26, elongated hole 51 is installed and is used for adjusting the installation site of guide rail elongated hole bearing 49.Guider B has 4, by leading
Constituted to rail core 29 and guide rail 30, using triangle track relation, centre is provided with spreader groove；Two per longitudinal direction are oriented to dress
The longitudinal centre line of the longitudinal centre line and U-frame frame 22 of putting B is overlapped, per two guider B of longitudinal direction longitudinal centre line
Overlapped with the longitudinal centre line of air bag 24.
The brake platform position monitoring device C includes displacement transducer 44, displacement transducer fixed plate 45, displacement transducer
Upper head plate 46, displacement transducer fixed mount 47, displacement transducer mounting hole 48.Refering to Figure 15,16,17,18, displacement transducer is solid
Frame 47 is determined on displacement transducer 44, and displacement transducer fixed mount 47 is fixed by screw-nut fix in position displacement sensor
Plate 45, displacement transducer fixed plate 45 is connected by welding with air bag fixed frame 26, and displacement transducer upper head plate 46 passes through weldering
Connect and be connected with U-frame frame 22.Displacement transducer 44 in brake platform position monitoring device C totally one, brake platform position monitoring device C
Telescopic direction it is consistent with the rise and fall direction of brake platform, upper head plate 46 follows U-shaped framework to move up and down, brake platform position prison
Survey device C can accurate feedback brake platform high variable quantity, so as to realize the accurate control of roller brake tester height.Position
The both sides of displacement sensor fixed plate 45 are provided with 12 mounting holes, are conveniently adjusted the installation site of displacement transducer 44.
The brake platform lowering or hoisting gear D include U-frame frame 22, air bag 24, air bag fixed frame 26, weighing sensor 28,
Air bag lifting axis 31, air bag bottom terminal pad 32, air bag top terminal pad 37, support frame longitudinally couple channel-section steel 38, side channel-section steel
39th, vertical slot steel 40.Refering to Fig. 2,3,4,5,6, the both sides front/rear end of U-frame frame 22 is with the locked system A's of electric-controlled type machine automatization
Rack 21 is connected, and the two sides of U-frame frame 22 are connected by welding with guided way core 31 respectively, and guide rail 30 passes through guided way
Road elongated hole bearing 33 is connected with air bag fixed frame 26, and the two ends of U-frame frame 22 pass through weighing sensor 28 and air bag lifting axis 31
Air bag is connected to, air bag 24 is fixed to air bag fixed frame 26 by terminal pad 37 at the top of air bag and air bag bottom terminal pad 32,
By support frame, longitudinally connection channel-section steel 38 is connected two air bag fixed frames 26 of the brake platform lifting device per longitudinal direction, brakes
Platform lifting device is connected per two horizontal air bag fixed frames 26 by side channel-section steel 39.Totally 4, air bag 24, is placed respectively
On 4 angles of brake platform lowering or hoisting gear 2, in order to keep air bag steady operation, 4 air bags 24 at the top of air bag respectively by connecting
Disk 37 and air bag bottom terminal pad 32 are fixed to the inside of air bag fixed frame 26, and air bag upper end is by air bag lifting axis 31 with weighing
Sensor 28 is connected.Air bag 24 drives brake platform 18 to rise by U-frame frame 22 and weighing sensor 28.Weighing sensor 28
Totally 4, each maximum is weighed 5000kg.
Data acquisition processing system includes signal amplification module 5, analog quantity terminal plate 7, analog acquisition card 13 and industry control
Machine 14.Refering to Fig. 1, signal amplification module 5 is connected with the weighing sensor on brake platform lowering or hoisting gear D, braking force sensor,
Analog quantity terminal plate 7 and signal amplification module 5, analog acquisition card 13 is connected by winding displacement with analog quantity terminal plate 7, and is pacified
In industrial computer 14ISA slots, industrial computer 14, analog quantity terminal plate 7 and signal amplification module 5 are placed in switch board 43.
Control system includes digital output card 2, magnetic valve 3 and electromagnet 1.Refering to Fig. 1, digital output card 2 is installed
It is connected in industrial computer 14ISA slots, and with magnetic valve 3 and electromagnet 1, magnetic valve 3, electromagnet 1 and brake platform lowering or hoisting gear D
It is connected.
A kind of axle load analog control method of brake platform lift height and axletree loading force correlation model, including in detail below
Step：
Equipment zeroing in step 1, data acquisition processing system, collection axle weight and braking force signal
When vehicle enters before detection place, the locked system A of electric-controlled type machine automatization electromagnet 1 is not powered, ratchet 20
The nethermost teeth groove of rack 21 is locked at, now data acquisition processing system can try brake platform lowering or hoisting gear 2, drum-type braking
Test the axle weight of platform 18, brake force and be uniformly set to zero, brake platform position monitoring device C lifting height initial value is set to zero, when
Vehicle enters behind detection place, and the prompting vehicle of dot matrix screen 12 drives into roller brake tester 18 in measuring car axle, when detection axletree
During in roller brake tester 18, now industrial computer 14 detects the proximity switch for receiving roller brake tester 18
The signal in place of roller brake tester 18 is reached to Vehicle Axles.
The highly automated regulation of step 2, detection wheel on roller brake tester
After multiple-axle vehicle enters roller brake tester 18, industrial computer 14 has detected vehicle in place, industrial computer
14 realize that brake platform lowering or hoisting gear D air bags 24 are inflated by magnetic valve 3, and roller brake tester 18 highly rises, herein mistake
Cheng Zhong, the locked system A of electric-controlled type machine automatization ratchet 20 stick into rack 21, brake platform position monitoring device C and weighing and sensing
The loading axis weight that device 28 samples the constantly lifting height of recording drum formula brake tester 18 and weighing sensor 28, control system
System will obtain actual x-F correlation models, until the actual lifting height of roller brake tester 18 reaches limit value or weighs
Air bag 24 stops inflation when the measured value of sensor 28 reaches limit value；Now, control system can obtain actual x-F correlation models,
According to the model, system obtains the deformation quantity of accurate displacement transducer 44, that is, loads lift height according to Standard.Car
After in stable condition, air bag starts to deflate, and braking stage body highly drops to object height, the locked system A of electric-controlled type machine automatization
Be automatically locked braking stage body, and braking stage body is changed into being rigidly connected with lifting the annexation of stand from being flexibly connected.
Step 3, vehicle measure the detection of axle braking force
After the completion of the highly automated regulation of roller brake tester 18, point out to drive by the display information of dot matrix screen 12
Member's brake, now sampled data is sent to data acquisition processing system by the braking force sensor of roller brake tester 18, meter
Calculate brake force F now；After vehicle is totally stationary, dot matrix, which shows 12 display screen, will show vehicle braking force, industrial computer 14 it is aobvious
Show that axle weight occurs in device interface and braking force signal changes over time the curve of relation.After data acquisition terminates, electromagnet 1 leads to
Electricity, loosens the arm of force 23 under the effect of electromagnet 1 along rotate counterclockwise certain angle, you can unclamp 21 locking to rack, so
Rear gasbag 24 is deflated, and the height of roller brake tester 23 drops to initial height, and detected vehicle rolls brake platform away from.
The axle load analog control device and method of brake platform lift height and axletree loading force correlation model are accurate with energy
Control roller brake tester lifting height, it is simple, convenient, fast to the transformation of existing drum braking platform, substantially increase
The advantages of multiple-axle vehicle braking performance test accuracy.
Claims (8)
1. the axle load analog control device based on brake platform lift height Yu axletree loading force correlation model, by electric-controlled type machinery certainly
Move locked system (A), guider (B), brake platform position monitoring device (C), brake platform lowering or hoisting gear (D), at data acquisition
Reason system and control system composition, it is characterised in that：
The locked system of electric-controlled type machine automatization (A), guider (B) and brake platform lowering or hoisting gear (D) are arranged in rolling
On 4 angles of cartridge type brake tester (18), the brake platform position monitoring device (C) is arranged on 1 angle of control device；
The locked system of electric-controlled type machine automatization (A) is multiple, and structure is identical, is arranged in roller brake tester (18) two
U-frame frame (22) place at end, for locked to U-frame frame (22) lift height in brake platform lowering or hoisting gear (D), and passes through system
Dynamic platform position monitoring device (C) detection brake platform lift location；
The guider (B) is arranged in the two ends of roller brake tester (18), by guided way core (29) and guide rail
(30) constitute, be slidably matched using V-arrangement, centre is provided with spreader groove；
The brake platform position monitoring device (C) is arranged on one jiao of roller brake tester (18), the brake platform position
The lower end of monitoring device (C) is fixed on air bag fixed frame (26), and its upper end is fixed on U-frame frame (22), the braking
The telescopic direction of displacement transducer (44) in platform position monitoring device (C) and the rise and fall of roller brake tester (18)
Direction is consistent；
The brake platform lowering or hoisting gear (D) is mainly made up of U-frame frame (22) and air bag (24)；
The data acquisition processing system is used to gather axle weight and braking force signal, including signal amplification module (5), analog quantity connect
Line plate (7), analog acquisition card (13) and industrial computer (14)；
The control system includes digital output card (2), magnetic valve (3) and electromagnet (1).
Controlled 2. the axle load according to claim 1 based on brake platform lift height and axletree loading force correlation model is simulated
Device, it is characterised in that：
The locked system of electric-controlled type machine automatization (A) totally 8, has 4 groups, every 2 groups of lockings, one U-frame frame by 2 one group
(22)。
Controlled 3. the axle load according to claim 1 based on brake platform lift height and axletree loading force correlation model is simulated
Device, it is characterised in that：
The locked system of electric-controlled type machine automatization (A) is by the rack (21) on U-frame frame (22) and installed in locking
Ratchet (20), steel sheet spring (19) on device support stand (25), loosen the arm of force (23), electromagnet (1) composition, the ratchet
(20) by ratchet rotary shaft (34) with loosening the concentric cooperation of the arm of force (23), the locking device branch at ratchet rotary shaft (34) place
Support (25) is provided with spacing hole (36), is arranged on the key (35) that ratchet rotary shaft (34) is interference fitted in spacing hole (36),
The ratchet (20) is combined by steel sheet spring (19) active force and rack (21), is powered by electromagnet (1) and is loosened the arm of force
(23) adhesive is separated with rack (21)；
The locking device support frame (25) longitudinally couples channel-section steel (38) by the stable channel-section steel (27) of support frame with support frame sideways
Be fixedly linked, be fixedly linked with support frame reinforcement (41) on rear side of locking device support frame (25), support frame reinforcement (41) and
Longitudinally connection channel-section steel (38) is fixedly linked support frame.
Controlled 4. the axle load according to claim 1 based on brake platform lift height and axletree loading force correlation model is simulated
Device, it is characterised in that：
The guider (B) is made up of guided way core (29) and guide rail (30), and the guided way core (29) is fixed on U-shaped
Framework (22) both sides, the guide rail (30) is bolted to air bag fixed frame by guide rail elongated hole bearing (49)
(26) the installation elongated hole (51) on upper end, guide rail elongated hole bearing (49) is used for adjusting guide rail elongated hole bearing (49) installation
Position；Guider (B) has 4, per in the longitudinal centre line of two guiders (B) of longitudinal direction and the longitudinal direction of air bag (24)
Heart line is overlapped.
Controlled 5. the axle load according to claim 1 based on brake platform lift height and axletree loading force correlation model is simulated
Device, it is characterised in that：
The brake platform position monitoring device (C) is by displacement transducer (44), displacement transducer fixed plate (45), displacement transducer
Upper head plate (46) and displacement transducer fixed mount (47) composition, institute's displacement sensors fixed mount (47) are arranged on displacement transducer
(44) on, displacement transducer fixed mount (47) is by screw-nut fix in position displacement sensor fixed plate (45), displacement sensing
Device fixed plate (45) is fixed on air bag fixed frame (26), displacement transducer upper head plate (46) and U-frame frame (22) stationary phase
Even, institute displacement sensors fixed plate (45) both sides are provided with multiple mounting holes, the installation position for adjusting displacement transducer (44)
Put.
Controlled 6. the axle load according to claim 1 based on brake platform lift height and axletree loading force correlation model is simulated
Device, it is characterised in that：
The brake platform lowering or hoisting gear (D) is by U-frame frame (22), air bag (24), air bag fixed frame (26), weighing sensor
(28), air bag lifting axis (31), air bag bottom terminal pad (32), air bag top terminal pad (37), support frame longitudinally couple channel-section steel
(38), side channel-section steel (39), vertical slot steel (40) composition,
U-frame frame (22) two ends are connected by weighing sensor (28) and air bag lifting axis (31) with air bag (24), described
Air bag (24) is fixed to inside air bag fixed frame (26) by terminal pad (37) at the top of air bag and air bag bottom terminal pad (32),
By support frame, longitudinally connection channel-section steel (38) is connected the air bag fixed frame (26) at U-frame frame (22) two ends, two U-frame framves
(22) the air bag fixed frame (26) of the same side is connected by side channel-section steel (39), and the air bag (24) passes through U-frame frame (22)
Drum-type brake platform (18) is driven to rise with weighing sensor (28).
Controlled 7. the axle load according to claim 1 based on brake platform lift height and axletree loading force correlation model is simulated
Device, it is characterised in that：
The data acquisition processing system includes signal amplification module (5), analog quantity terminal plate (7), analog acquisition card (13)
With industrial computer (14), the signal amplification module (5) and the weighing sensor (28) on brake platform lowering or hoisting gear (D), brake force
Sensor (9) is connected, and analog quantity terminal plate (7) is connected by winding displacement with signal amplification module (5) and analog acquisition card (13),
And in industrial computer (14) ISA slots, industrial computer (14), analog quantity terminal plate (7) and signal amplification module (5) are placed on
In switch board (43).
Controlled 8. the axle load according to claim 1 based on brake platform lift height and axletree loading force correlation model is simulated
Device, it is characterised in that：
The control system includes digital output card (2), magnetic valve (3) and electromagnet (1), the digital output card (2)
It is connected in industrial computer (14) ISA slots, and with magnetic valve (3) and electromagnet (1), the magnetic valve (3) and electromagnet
(1) it is connected with brake platform lowering or hoisting gear (D).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720100554.8U CN206430918U (en) | 2017-01-24 | 2017-01-24 | Axle load analog control device based on brake platform lift height Yu axletree loading force correlation model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720100554.8U CN206430918U (en) | 2017-01-24 | 2017-01-24 | Axle load analog control device based on brake platform lift height Yu axletree loading force correlation model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206430918U true CN206430918U (en) | 2017-08-22 |
Family
ID=59592291
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720100554.8U Expired - Fee Related CN206430918U (en) | 2017-01-24 | 2017-01-24 | Axle load analog control device based on brake platform lift height Yu axletree loading force correlation model |
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| Country | Link |
|---|---|
| CN (1) | CN206430918U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840698A (en) * | 2017-01-24 | 2017-06-13 | 吉林大学 | Axle load analog control device and method based on brake platform lift height and axletree loading force correlation model |
| CN115046664A (en) * | 2022-08-16 | 2022-09-13 | 山东新凌志检测技术有限公司 | Chassis dynamometer with adjustable single-roller four-wheel-drive wheelbase |
-
2017
- 2017-01-24 CN CN201720100554.8U patent/CN206430918U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840698A (en) * | 2017-01-24 | 2017-06-13 | 吉林大学 | Axle load analog control device and method based on brake platform lift height and axletree loading force correlation model |
| CN115046664A (en) * | 2022-08-16 | 2022-09-13 | 山东新凌志检测技术有限公司 | Chassis dynamometer with adjustable single-roller four-wheel-drive wheelbase |
| CN115046664B (en) * | 2022-08-16 | 2022-11-15 | 山东新凌志检测技术有限公司 | Chassis dynamometer with adjustable single-roller four-wheel-drive wheelbase |
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