CN208953115U - Wheel load testing stand load calibration device - Google Patents
Wheel load testing stand load calibration device Download PDFInfo
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- CN208953115U CN208953115U CN201821752842.2U CN201821752842U CN208953115U CN 208953115 U CN208953115 U CN 208953115U CN 201821752842 U CN201821752842 U CN 201821752842U CN 208953115 U CN208953115 U CN 208953115U
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Abstract
The utility model discloses a kind of wheel load testing stand load calibration devices, comprising: wheel load testing stand ontology and calibration component；Wheel load pressure testing table ontology includes stage body, the lifting decelerator system in stage body, the weighting platform component in lifting decelerator system and the weighing supporting rail on weighting platform component；Calibration component includes the calibration force snesor being set to above weighing supporting rail, set on demarcating above force snesor and being fixedly connected the load crossbeam of stage body and the elastic component between calibration force snesor and load crossbeam, and elastic component is for compression load crossbeam and demarcates force snesor.When carrying out calibration test, driving device in wheel load testing stand ontology is utilized, simultaneously, since elastic component is arranged between calibration force snesor and load crossbeam, pure rigid hydraulic jack in compared with the prior art, the calibration component is equivalent to weak separation system, and elastic component can play buffer function, it is possible to reduce damages caused by wheel load testing stand ontology in calibration test.
Description
Technical field
The utility model relates to wheel load technical field of test equipment, in particular to a kind of wheel load testing stand load calibration dress
It sets.
Background technique
The components such as the weighting platform component above wheel load testing stand equipped with analog orbit pattern, utilize the driving devices such as servo motor
Driving.Wherein, the cable of wheel load testing stand, the accuracy of data collection system will affect the accuracy of experimental bench system.Wheel load
The disassembly of testing stand is more complicated, verifies to carry out periodic dosages and the period of wheel load testing stand, needs do not dismantling weighting platform
Calibration test is carried out under conditions of component, to detect the system accuracies of wheel load testing stand.
In a kind of existing typical detection mode, measured by the way of hydraulic loaded.However, hydraulic jack
Downward symmetry bench component load is pushed up, since hydraulic jack is rigid structure, is easy to the title directly contacted in wheel load pressure testing table
Weight supporting rail causes impact damage, to cause the damage of wheel load testing stand.
Therefore, the damage caused by wheel load pressure testing table in calibration process how is reduced, is that those skilled in the art need at present
Technical problems to be solved.
Utility model content
In view of this, mark can be reduced the purpose of the utility model is to provide a kind of wheel load testing stand load calibration device
It is damaged caused by wheel load pressure testing table during fixed.
To achieve the above object, the utility model provides the following technical solutions:
A kind of wheel load testing stand load calibration device, comprising: wheel load testing stand ontology and calibration component；
The wheel load pressure testing table ontology includes stage body, the lifting decelerator system in the stage body, is set to the liter
Weighting platform component in speed reducer system and the weighing supporting rail on the weighting platform component drop；
The calibration component includes the calibration force snesor being set to above the weighing supporting rail, is set to calibration power biography
Above sensor and it is fixedly connected with the load crossbeam of the stage body and is set between the calibration force snesor and the load crossbeam
Elastic component, the elastic component is for compressing the load crossbeam and the calibration force snesor.
Preferably, the load crossbeam is fixedly connected on the stage body by height adjusting structure, so that the load is horizontal
Beam is adjustable relative to the stage body height.
Preferably, the height adjusting structure includes standing screw, the first locking nut and the second locking nut；It is described solid
The both ends for determining screw rod are plugged in the stage body and the load crossbeam respectively, and first locking nut is threadedly connected to described solid
Screw rod is determined to position the standing screw and the load crossbeam, and second locking nut is threadedly connected to the standing screw
To position the standing screw and the stage body.
Preferably, the elastic component is disk spring.
Preferably, the lifting decelerator system includes reduction gear box and transmission connection in the silk of the reduction gear box
Screw-and-nut mechanism.
Preferably, through pilot hole is equipped on the load crossbeam, sliding is inserted with guide rod and institute in the pilot hole
The bottom end for stating guide rod is fixedly connected with the calibration force snesor, and the elastic component is sheathed on the guide rod.
Preferably, the part stretched out from the pilot hole on the guide rod is additionally provided with limited block, leads to avoid described
Deviate from downwards from the pilot hole to bar.
Preferably, guide sleeve is fixed in the pilot hole, the guide rod is plugged in the guide sleeve.
Preferably, gap is equipped between the guide sleeve and the guide rod.
Preferably, the guide sleeve is equipped with grease storage groove.
Wheel load testing stand load calibration device provided by the utility model, comprising: wheel load testing stand ontology and calibration component；
Wheel load pressure testing table ontology includes stage body, the lifting decelerator system in stage body, the weighting platform in lifting decelerator system
Component and the weighing supporting rail on weighting platform component；Calibration component includes the calibration power sensing above weighing supporting rail
Device, set on calibration force snesor above and be fixedly connected stage body load crossbeam and be set to calibration force snesor with load crossbeam it
Between elastic component, elastic component for compress load crossbeam and calibration force snesor.
When carrying out calibration test, the driving device in wheel load testing stand ontology is utilized, wheel load testing stand ontology
As a part in caliberating device, the diversity of wheel load testing stand noumenon function is realized, due to without as in the prior art
In addition driving device of the setting for load is conducive to save testing cost, reduces the occupied space of caliberating device.Meanwhile by
In calibration force snesor and load crossbeam between elastic component is set, compared with the prior art in pure rigid hydraulic jack, should
Calibration component is equivalent to weak separation system, and elastic component can play buffer function, to reduce what weighing supporting rail top was subject to
Impact damage is reduced and is damaged caused by wheel load testing stand ontology in calibration test.In addition, weighing supporting rail and weighting platform component meeting
Certain displacement is generated under the driving of lifting decelerator system, the setting of elastic component can make weigh supporting rail and weighting platform component
With enough mobile spaces, be conducive to avoid caliberating device stuck.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 provides the structural schematic diagram of wheel load testing stand load calibration device by the utility model；
Fig. 2 is provided the signal of the group unification of disk spring in wheel load testing stand load calibration device by the utility model
Figure；
Fig. 3 provides the signal of the combination two of disk spring in wheel load testing stand load calibration device by the utility model
Figure；
Fig. 4 provides a kind of concrete application of disk groups of springs in wheel load testing stand load calibration device by the utility model
Figure.
In Fig. 1,1- standing screw, the first locking nut of 2-, 3- load crossbeam, 4- guide rod, 5- guide sleeve, 6- elasticity
Part, 7- demarcate force snesor, 8- weighing supporting rail, 9- weighting platform component, 10- weighting platform lifting guide rod, 11- lifting decelerator system
System, 12- stage body, the second locking nut of 13-, limited block 14.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The core of the utility model is to provide a kind of wheel load testing stand load calibration device, and it is right in calibration process to reduce
It is damaged caused by wheel load pressure testing table.
In a kind of specific embodiment of the provided wheel load testing stand load calibration device of the utility model, referring to FIG. 1, packet
Include wheel load pressure testing table ontology and calibration component.
Wherein, wheel load pressure testing table ontology include stage body 12, the lifting decelerator system 11 being arranged in stage body 12, setting exist
Weighting platform component 9 in lifting decelerator system 11, the weighing supporting rail 8 being arranged on weighting platform component 9.
Wherein, calibration component specifically includes the calibration force snesor 7 that 8 top of weighing supporting rail is arranged in, setting is being demarcated
Force snesor 7 and load crossbeam 3 are being demarcated in 7 top of force snesor and the load crossbeam 3 being fixedly connected on stage body 12 and setting
Between elastic component 6, the elastic component 6 for compress load crossbeam 3 and calibration force snesor 7.
Wherein, load crossbeam 3 can according to need the beam body of selection proper strength and rigidity.
Wherein, weighing supporting rail 8 is specifically as follows simulation 60kg/m specification or the weighing supporting rail 8 of other specifications.
When testing, start lifting decelerator system 11,11 symmetry bench component 9 of lifting decelerator system and weighing
Supporting rail 8 applies load upwards, since load crossbeam 3 is fixedly connected on stage body 12, with the rising of weighing supporting rail 8, elasticity
The compression degree between calibration force snesor 7 and load crossbeam 3 of part 6 increases, and position is arranged in the calibration meeting real-time detection of force snesor 7
The load condition set.
Wherein, it should be noted that wheel load testing stand ontology is typically provided with controller to control the operation of each component in it
Situation.Wherein, in calibration test, the load condition of lifting decelerator system 11 can specifically be acquired by independent board.Phase
Ying Di, calibration force snesor 7 can be connected to the controller of wheel load testing stand ontology with signal.In a kind of specific embodiment, control
Independent board automatic collection demarcates the testing result of force snesor 7 and to correlations such as the load force value of weighing unit in device processed
Data can specifically carry out the fitting of data and the comparison of single point precision respectively, and according to the linearity of standard transducer, automatically
Ground provides the characteristic parameter of linearity, repeatability, hysteresis quality for being calibrated title group etc., for setting for test table scale group calibrating parameters
It sets.
In the present embodiment, when carrying out calibration test, the driving device in wheel load testing stand ontology is utilized, wheel load
Testing stand ontology realizes the diversity of wheel load testing stand noumenon function as a part in caliberating device, due to being not necessarily to picture
In addition setting is used for the driving device loaded in the prior art, is conducive to save testing cost, and the occupancy for reducing caliberating device is empty
Between.Simultaneously as calibration force snesor 7 and load crossbeam 3 between be arranged elastic component 6, compared with the prior art in it is pure rigid
Hydraulic jack, the calibration component are equivalent to weak separation system, and elastic component 6 can play buffer function, to reduce weighing branch
The impact damage being subject at the top of support rail 8 is reduced and is damaged caused by wheel load testing stand ontology in calibration test.In addition, weighing branch
Support rail 8 and weighting platform component 9 can generate certain displacement under the driving of lifting decelerator system 11, and the setting of elastic component 6 can be with
Make weighing supporting rail 8 and weighting platform component 9 that there is enough mobile spaces, is conducive to avoid caliberating device stuck.
On the basis of the above embodiments, load crossbeam 3 specifically can be fixedly connected on stage body by height adjusting structure
On 12, so that load crossbeam 3 is height-adjustable relative to stage body 12.
In the present embodiment, load crossbeam 3 is adjustable relative to the fixation position of stage body 12 in the height direction, then can be corresponding
The precommpression degree of elastic component 6 is adjusted, to adjust the precompression of 6 pairs of elastic component weighing supporting rails 8, and then can be according to need
The position of load crossbeam 3 is adjusted, guarantees test scope.
On the basis of the above embodiments, height adjusting structure can specifically include standing screw 1, the first locking nut 2
With the second locking nut 13.
Wherein, the both ends of standing screw 1 are plugged on respectively in stage body 12 and load crossbeam 3.First locking nut, 2 screw thread connects
Be connected to standing screw 1 with position standing screw 1 and load crossbeam 3, the second locking nut 13 be threadedly connected to standing screw 1 with
Position standing screw 1 and stage body 12.First locking nut 2 can be played with the second locking nut 13 adjusts the rigid of load crossbeam 3
The effect of degree and locking load crossbeam 3.
Wherein, optionally, standing screw 1 can be the M60x2 fine thread structure of full thread.
Wherein, standing screw 1 can specifically be arranged in parallel two, can stablize branch while adjusting and loading crossbeam 3
Support load crossbeam 3.
In the present embodiment, pass through the fixed load crossbeam 3 of the cooperation of standing screw 1 and locking nut and stage body, dismounting side
Just, and be conducive to save the cost, height adjustment operation is convenient.
Certainly, in other embodiments, height adjusting structure can also be linear mould group, hydraulic cylinder or other component.
Based on any of the above embodiments, elastic component 6 can be disk spring, and the stroke of such spring is short, load
It weighs, required space is small, long service life.
Wherein, by the selection of the combining form to disk spring, can be designed that the measuring system of variation rigidity, it is specific and
It says, that is, designs the caliberating device of different rigidity (load/displacement) according to the size of the load limitation value of caliberating device.
Wherein, the basic principle that disk spring assembly uses can be referring to figs. 2 and 3:
In combination one shown in FIG. 1, the ultimate load P of groups of springsz=n × P, stiffness factor fz=f, wherein P is one
The ultimate load of a spring, f are the stiffness factor of a spring, and n is spring number；
In combination one shown in Fig. 2, the ultimate load P of groups of springsz=P, stiffness factor fz=n × f, wherein P be
The ultimate load of one spring, f are the stiffness factor of a spring, and n is spring number.
The load calibration device that variation rigidity may be implemented using the basic principle of above-mentioned disk spring, according to different calibration
Range combines the stacking mode of disk spring, realizes the experiment of weighing under different strokes, different limit calibration load-up conditions
The load calibration device of platform.
Based on any of the above embodiments, lifting decelerator system 11 may include reduction gear box and transmission connection
In the screw nut driving mechanism of reduction gear box.
Since screw nut driving mechanism has self-locking function, it is ensured that the stability of measurement, in calibration force snesor 7
After being connected to controller, the display of controller can stablize display measured value, to read or acquire stable load number
The force value of value and calibration force snesor 7, and then realize the metering of weighing unit.Meanwhile the lifting decelerator system 11 and bullet
The cooperation of property part 6, can reasonably distribute the reaction force being subject to inside lifting decelerator system 11 in operating range
Load avoids long-term part is loaded from leading to potential local damage.
In a kind of concrete application, referring to FIG. 4, the ultimate load Pz=200kN of load calibration device, calibration displacement:
20mm.Select disk spring: outer diameter D=100mm, internal diameter d=51mm, stroke H0=8.2mm, physical performance index are as follows: the limit
Load p=48kN, stiffness factor f=1.65.After disk spring assembly, ultimate load Pz=48 × 4=192kN, stiffness system
Number fz=4 × 1.65=6.6mm.In addition, the screw pitch of screw rod can be 5mm, lifting decelerator system in lifting decelerator system 11
The ultimate load of system 11 is 400kN, and elevator transmission ratio is 200:1, at this point, 1 circle of gearbox output turn substantially can be complete
At calibration, and the motor of input terminal then needs to turn 200 turns, at this point, can be to avoid length using the variation rigidity design in the present embodiment
The state of one tooth stress of phase.
Based on any of the above embodiments, loading can be through pilot hole be equipped on crossbeam 3, and sliding is inserted in pilot hole
Bottom end equipped with guide rod 4 and guide rod 4 is fixedly connected with calibration force snesor 7, and elastic component 6 is sheathed on guide rod 4.Pass through
The setting of pilot hole and guide rod 4 can carry out elastic component 6 reliably limiting and being oriented to.
On the basis of the above embodiments, limited block 14 can also be arranged in the part stretched out from pilot hole on guide rod 4,
Deviate from downwards from pilot hole to avoid guide rod 4.Without using calibration component when, no matter load crossbeam 3 rise to it is how high,
It can guarantee that guide rod 4 will not deviate from downwards pilot hole.
On the basis of the above embodiments, guide sleeve 5 can be fixed in pilot hole, guide rod 4 is plugged in guide sleeve 5
In.By the setting of guide sleeve 5, pilot hole can be protected, avoid pilot hole impaired.Preferably, guide sleeve 5 can be adopted
It is process with magnesium iron, has low cost, high rigidity, the feature of high abrasion.
On the basis of the above embodiments, gap can be set between guide sleeve 5 and guide rod 4, energy while guiding
Enough reduce the friction between guide sleeve 5 and guide rod 4.Optionally, the length of guide sleeve 5 and the diameter ratio of guide rod 4 are preferred
Greater than 2.5, to guarantee preferable guiding performance.
Based on any of the above embodiments, grease storage groove can be equipped on guide sleeve 5, for placing lubricating grease, with full
The requirement that sufficient guide rod 4 lubricates when going up and down.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Wheel load testing stand load calibration device provided by the utility model is described in detail above.It answers herein
The principles of the present invention and embodiment are expounded with specific case, the explanation of above example is only intended to sides
Assistant solves the method and its core concept of the utility model.It should be pointed out that for those skilled in the art,
Without departing from the principle of this utility model, several improvements and modifications can be made to this utility model, these improvement
It is also fallen into the protection scope of the utility model claims with modification.
Claims (10)
1. a kind of wheel load testing stand load calibration device characterized by comprising wheel load testing stand ontology and calibration component；
The wheel load pressure testing table ontology includes stage body (12), the lifting decelerator system (11) being set in the stage body (12), sets
In the weighting platform component (9) on the lifting decelerator system (11) and the weighing supporting rail being set on the weighting platform component (9)
(8)；
The calibration component includes the calibration force snesor (7) being set to above weighing supporting rail (8), is set to the calibration power
Above sensor (7) and it is fixedly connected with the load crossbeam (3) of the stage body (12) and is set to the calibration force snesor (7) and institute
The elastic component (6) between load crossbeam (3) is stated, the elastic component (6) is for compressing the load crossbeam (3) and the calibration power
Sensor (7).
2. wheel load testing stand load calibration device according to claim 1, which is characterized in that the load crossbeam (3) is logical
It crosses height adjusting structure and is fixedly connected on the stage body (12), so that the load crossbeam (3) is relative to the stage body (12) height
It spends adjustable.
3. wheel load testing stand load calibration device according to claim 2, which is characterized in that the height adjusting structure packet
Include standing screw (1), the first locking nut (2) and the second locking nut (13)；Distinguish grafting in the both ends of the standing screw (1)
In the stage body (12) and the load crossbeam (3), first locking nut (2) is threadedly connected to the standing screw (1)
To position the standing screw (1) and the load crossbeam (3), second locking nut (13) is threadedly connected to the fixation
Screw rod (1) is to position the standing screw (1) and the stage body (12).
4. wheel load testing stand load calibration device according to claim 1, which is characterized in that the elastic component (6) is dish
Flat spring.
5. wheel load testing stand load calibration device according to claim 1, which is characterized in that the lifting decelerator system
It (11) include reduction gear box and transmission connection in the screw nut driving mechanism of the reduction gear box.
6. according to claim 1 to wheel load testing stand load calibration device described in 5 any one, which is characterized in that described to add
It carries through pilot hole is equipped on crossbeam (3), sliding is inserted with the bottom of guide rod (4) and the guide rod (4) in the pilot hole
End is fixedly connected with the calibration force snesor (7), and the elastic component (6) is sheathed on the guide rod (4).
7. wheel load testing stand load calibration device according to claim 6, which is characterized in that on the guide rod (4) from
The part stretched out in the pilot hole is additionally provided with limited block (14), downward from the pilot hole to avoid the guide rod (4)
Abjection.
8. wheel load testing stand load calibration device according to claim 6, which is characterized in that fixation is set in the pilot hole
Have guide sleeve (5), the guide rod (4) is plugged in the guide sleeve (5).
9. wheel load testing stand load calibration device according to claim 8, which is characterized in that the guide sleeve (5) and institute
It states and is equipped with gap between guide rod (4).
10. wheel load testing stand load calibration device according to claim 9, which is characterized in that set on the guide sleeve (5)
There is grease storage groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821752842.2U CN208953115U (en) | 2018-10-26 | 2018-10-26 | Wheel load testing stand load calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821752842.2U CN208953115U (en) | 2018-10-26 | 2018-10-26 | Wheel load testing stand load calibration device |
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| Publication Number | Publication Date |
|---|---|
| CN208953115U true CN208953115U (en) | 2019-06-07 |
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ID=66743218
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821752842.2U Active CN208953115U (en) | 2018-10-26 | 2018-10-26 | Wheel load testing stand load calibration device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050914A (en) * | 2020-08-10 | 2020-12-08 | 新兴铸管股份有限公司 | Rail type weighing sensor |
| CN112629633A (en) * | 2021-01-04 | 2021-04-09 | 中车株洲电力机车有限公司 | Multifunctional wheel-load test bed weighing unit |
-
2018
- 2018-10-26 CN CN201821752842.2U patent/CN208953115U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050914A (en) * | 2020-08-10 | 2020-12-08 | 新兴铸管股份有限公司 | Rail type weighing sensor |
| CN112629633A (en) * | 2021-01-04 | 2021-04-09 | 中车株洲电力机车有限公司 | Multifunctional wheel-load test bed weighing unit |
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