CN102661831A - Reversing device and calibration device and calibration method of pull force value of power indication machine of shock absorber - Google Patents
Reversing device and calibration device and calibration method of pull force value of power indication machine of shock absorber Download PDFInfo
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- CN102661831A CN102661831A CN2012101197126A CN201210119712A CN102661831A CN 102661831 A CN102661831 A CN 102661831A CN 2012101197126 A CN2012101197126 A CN 2012101197126A CN 201210119712 A CN201210119712 A CN 201210119712A CN 102661831 A CN102661831 A CN 102661831A
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Abstract
The invention discloses a reversing device, in particular to a force conversion device. The reversing device comprises a lower connection plate, a lower fixed rod, a location plate, an upper connection plate, an upper fixed rod and a press plate. A location plate through hole is arranged on the location plate, a press plate through hole is arranged on the press plate, the upper end of the lower fixed rod is connected with the press plate, the lower end of the lower fixed rod is connected with the lower connection plate, and the middle of the lower fixed rod is connected with the location plate. The upper end of the upper fixed rod is connected with the upper connection plate, the lower end of the upper fixed rod is connected with the location plate, and the middle of the upper fixed rod is connected with the press plate. The lower fixed rod penetrates through the location plate through hole, and the upper fixed rod penetrates through the press plate through hole. Compared with the prior art, the reversing device is capable of converting pull force received by a shock absorber sensor into pressure received by a dynamometer, so that pull force value received by the sensor can be read from the dynamometer. Pull force value calibration of a power indication machine of the shock absorber is achieved, and the problem that pull force value calibration of the power indication machine troubles the industry for many years can be resolved accordingly.
Description
Technical field
The present invention relates to a kind of vibroshock dynamometer machine truing tool and method, particularly a kind of reversing arrangement, vibroshock dynamometer machine pull to power value calibration device and the vibroshock dynamometer machine pulls to power value calibration method.
Background technology
The vibroshock dynamometer machine is mainly used in the stretching and the test of the damping force in when compression of vibroshock, and this test is the all-round property testing index after each the parts general assembly of unique reflection vibroshock is accomplished.Product is played the effect of checking on of last quality.
All the time; Industry is generally only pressed to the power value calibration to the vibroshock dynamometer machine, and its method is that the Luo through the vibroshock dynamometer machine leading screw of rotational fixation on vibroshock dynamometer machine crossbeam revolves handle, drives the vibroshock dynamometer machine sensor on the vibroshock dynamometer machine crossbeam; Press to dynamometer; On dynamometer, read the suffered compressive force value A of vibroshock dynamometer machine sensor, if the power value that the vibroshock dynamometer machine shows at this moment is B, then the difference of B and A is the instrument error of vibroshock dynamometer machine.Generally speaking, choose that equally distributed 5 points carry out force value tests in the vibroshock dynamometer machine full scale nominal force value.After accomplishing all the other tests of 4 successively, if the allowed band of instrument error overshoot then through the calibration coefficient of adjustment vibroshock dynamometer machine software, makes its requirement of satisfying regulation, thereby accomplishes calibration operation.
Because the vibroshock dynamometer machine is not in use singly pressed to power, pulls to power in addition, therefore, only the vibroshock dynamometer machine is pressed to the power test and be equivalent to only accomplish its test job of 1/2nd, lose biased.
Pull to the power value calibration in the industry is exactly blank out all the time basically, the power value calibration that indivedual vibroshock dynamometer machine manufacturers pull to the method for hanging counterweight, and its method is that counterweight directly is hung on vibroshock dynamometer machine sensor lower end.But because vibroshock dynamometer machine sensor and the space between vibroshock dynamometer machine platform of principal under the vibroshock dynamometer machine vibroshock dynamometer machine crossbeam are too narrow and small; Generally can only be suspended to tens kilograms; This will produce following drawback: the one, lift the height about 1.6 meters to tens kilograms counterweight; Be suspended on the vibroshock dynamometer machine sensor, difficulty is bigger again; The 2nd, be prone to people, machine security incident take place, in case the lanyard fracture, 1.6 meters height is pounded following tens kilograms counterweight, people, machine, counterweight all are vulnerable to damage; The 3rd, poor accuracy; Because the full scale of most vibroshock dynamometer machines is all about 1000 kilograms; Be uniformly distributed with 5 words of calibrating by full scale; Then need hang 200 kilograms, 400 kilograms, 600 kilograms, 800 kilograms and 1000 kilograms successively, test as if the counterweight of only hanging tens kilograms, its accuracy obviously is worth discussion.And the small space below the vibroshock dynamometer machine sensor can not hold above-mentioned hundreds and thousands of kilograms counterweight, and so heavy counterweight also is difficult for hanging up 1.6 meters height very much.Therefore it is not proper carrying out vibroshock dynamometer machine power value calibration with the method for hanging counterweight.
Summary of the invention
To above-mentioned weak point; One of the object of the invention just is to provide a kind of reversing arrangement; This reversing arrangement can convert the suffered pressure of dynamometer to by the pulling force that the vibroshock sensor is suffered; Thereby the suffered pulling force power value of read sensor on dynamometer; Thereby realize the power that the pulls to value calibration of vibroshock dynamometer machine, because the dynamometry scope of dynamometer can not wait to hundreds of thousands newton from tens newton, so can carry out the power value calibration according to the corresponding big or small dynamometer of the different measurement range selection of dynamometer machine sensor.And the dynamometer profile is very little, does not receive the restriction of small space under the dynamometer machine sensor, so this device of utilization can carry out the calibration of all range ability dynamometer machines in theory.Thereby successfully solve puzzlement in the industry for many years dynamometer machine pull to the difficult problem of power value calibration.
Technical scheme is: a kind of reversing arrangement, and a kind of reversing arrangement, this reversing arrangement comprises: lower connecting plate, time fixed bar, location-plate, upper junction plate, last fixed bar and pressing plate; Location-plate is provided with the location-plate through hole, and pressing plate is provided with the pressing plate through hole; Following fixed bar upper end is connected with pressing plate, and the lower end is connected with lower connecting plate, and the middle part is connected with location-plate; Last fixed bar upper end is connected with upper junction plate, and the lower end is connected with location-plate, and the middle part connects pressing plate; Following fixed bar passes the location-plate through hole, and last fixed bar passes the pressing plate through hole.
As preferably, the said fixed bar of going up is rigidly connected with upper junction plate and location-plate employing screw thread, and following fixed bar and pressing plate and lower connecting plate employing screw thread are rigidly connected.
As preferably, said location-plate through-hole diameter than the big 8mm of following fixed bar diameter about, the pressing plate through-hole diameter than the big 8mm of last fixed bar diameter about.
As preferably, said fixed bar down overlaps with location-plate through hole axial line, last fixed bar and the coincidence of pressing plate through hole axial line.
Two of the object of the invention is to provide a kind of vibroshock dynamometer machine to pull to power value calibration device; When calibrating, this calibrating installation do not need tens kilograms counterweight is lifted the height about 1.6 meters; People, machine security incident can not take place, and be accuracy good, it is big to pull to the force measurement scope.
Technical scheme is: a kind of vibroshock dynamometer machine pulls to power value calibration device, and this calibrating installation comprises above-mentioned described reversing arrangement and dynamometer, and said dynamometer is placed between said location-plate and the said pressing plate.
As preferably, this calibrating installation also comprises a coupling arrangement, and this coupling arrangement is connected with said reversing arrangement lower connecting plate.
As preferably, said coupling arrangement is arc link.
Three of the object of the invention is to provide a kind of method that the vibroshock dynamometer machine pulls to the power value of calibrating, and this method calibration vibroshock dynamometer machine pulls to power value accuracy good, and it is big to pull to the force measurement scope, simple to operate and safety.
Technical scheme is: a kind ofly calibrate the method that the vibroshock dynamometer machine pulls to the power value, this method detects and calibrates the vibroshock dynamometer machine and pull to the power value through will the power of pulling to being converted into the power of pressing to.As preferably, said this method adopts vibroshock dynamometer machine recited above to pull to power value calibration device.
As preferably; The vibroshock dynamometer machine pulls to the power value error of indication for
in view of the above behind the calibration coefficient of results modification vibroshock dynamometer machine software; Again detect, meet the requirements until the error of indication.
Compared with prior art, beneficial effect of the present invention is:
1) be suspended to again on the vibroshock dynamometer machine sensor after not needing to lift the height about 1.6 meters to tens kilograms counterweight, so processing ease.
2) people, machine security incident can not take place.
3) compare with detecting with counterweight, accuracy good, it is big to pull to the force measurement scope.
4) do not receive the restriction of the small space below the vibroshock dynamometer machine sensor.
Description of drawings
Fig. 1 is a reversing arrangement one-piece construction synoptic diagram;
Fig. 2 is the one-piece construction synoptic diagram that a vibroshock dynamometer machine pulls to power value calibration device;
Fig. 3 pulls to the one-piece construction synoptic diagram of power value calibration device for another vibroshock dynamometer machine;
Fig. 4 uses the embodiment view for the vibroshock dynamometer machine pulls to power value calibration device one.
Embodiment
To combine accompanying drawing that the present invention is described further below.
Reversing arrangement as shown in Figure 1, this reversing arrangement mainly are made up of lower connecting plate 1, time fixed bar 21, location-plate 3, upper junction plate 4, last fixed bar 22 and pressing plate 5.Following fixed bar 21 upper ends are connected with pressing plate 5, and the lower end is connected with lower connecting plate 1, and the middle part is connected with location-plate 3.Last fixed bar 22 upper ends are connected with upper junction plate 4, and the lower end is connected with location-plate 3, and the middle part connects pressing plate 5.
Last fixed bar 22 adopts screw thread to be rigidly connected with upper junction plate 4 and location-plate 3, and following fixed bar 21 adopts screw thread to be rigidly connected with pressing plate 5 and lower connecting plate 1.
Following fixed bar 21 passes the location-plate through hole 31 of location-plate 3, about the diameter big 8mm of the diameter of through hole than following fixed bar 21, so that location-plate 3 is when moving upward and the influence of 21 zerofriction forces of following fixed bar.
Last fixed bar 22 passes the pressing plate through hole 51 of pressing plate 5, about the diameter big 8mm of the diameter of pressing plate through hole 51 than last fixed bar 22, so that when going up fixed bar 22 and moving upward and the influence of 51 zerofriction forces of pressing plate through hole.
Switching-over in the reversing arrangement refers to the power of pulling to is converted into the power of pressing to.
Vibroshock dynamometer machine as shown in Figure 2 pulls to power value calibration device, and this vibroshock dynamometer machine pulls to power value calibration device and mainly is made up of reversing arrangement and dynamometer 6.
Reversing arrangement mainly is made up of lower connecting plate 1, time fixed bar 21, location-plate 3, upper junction plate 4, last fixed bar 22 and pressing plate 5.Following fixed bar 21 upper ends are connected with pressing plate 5, and the lower end is connected with lower connecting plate 1, and the middle part is connected with location-plate 3.Last fixed bar 22 upper ends are connected with upper junction plate 4, and the lower end is connected with location-plate 3, and the middle part connects pressing plate 5.
Last fixed bar 22 adopts screw thread to be rigidly connected with upper junction plate 4 and location-plate 3, and following fixed bar 21 adopts screw thread to be rigidly connected with pressing plate 5 and lower connecting plate 1.
Following fixed bar 21 passes the location-plate through hole 31 of location-plate 3, about the diameter big 8mm of the diameter of through hole than following fixed bar 21, so that location-plate 3 is when moving upward and the influence of 21 zerofriction forces of following fixed bar.
Last fixed bar 22 passes the pressing plate through hole 51 of pressing plate 5, about the diameter big 8mm of the diameter of pressing plate through hole 51 than last fixed bar 22, so that when going up fixed bar 22 and moving upward and the influence of 51 zerofriction forces of pressing plate through hole.
Vibroshock dynamometer machine as shown in Figure 3 pulls to power value calibration device, and this vibroshock dynamometer machine pulls to power value calibration device and mainly is made up of reversing arrangement, dynamometer 6 and coupling arrangement 7.Coupling arrangement 7 prevents that on the one hand vibroshock dynamometer machine and reversing arrangement from colliding each other and cause calibration error, couples together vibroshock dynamometer machine and reversing arrangement on the other hand.
Reversing arrangement mainly is made up of lower connecting plate 1, time fixed bar 21, location-plate 3, upper junction plate 4, last fixed bar 22 and pressing plate 5.Following fixed bar 21 upper ends are connected with pressing plate 5, and the lower end is connected with lower connecting plate 1, and the middle part is connected with location-plate 3.Last fixed bar 22 upper ends are connected with upper junction plate 4, and the lower end is connected with location-plate 3, and the middle part connects pressing plate 5.
Last fixed bar 22 adopts screw thread to be rigidly connected with upper junction plate 4 and location-plate 3, and following fixed bar 21 adopts screw thread to be rigidly connected with pressing plate 5 and lower connecting plate 1.
Following fixed bar 21 passes the location-plate through hole 31 of location-plate 3, about the diameter big 8mm of the diameter of through hole than following fixed bar 21, so that location-plate 3 is when moving upward and the influence of 21 zerofriction forces of following fixed bar.
Last fixed bar 22 passes the pressing plate through hole 51 of pressing plate 5, about the diameter big 8mm of the diameter of pressing plate through hole 51 than last fixed bar 22, so that when going up fixed bar 22 and moving upward and the influence of 51 zerofriction forces of pressing plate through hole.
Use embodiment 1
As shown in Figure 4, the vibroshock dynamometer machine pulls to power value calibration device and mainly is made up of reversing arrangement, dynamometer 6 and coupling arrangement 7.Coupling arrangement 7 is arc link.
Reversing arrangement mainly is made up of lower connecting plate 1, time fixed bar 21, location-plate 3, upper junction plate 4, last fixed bar 22 and pressing plate 5.Following fixed bar 21 upper ends are connected with pressing plate 5, and the lower end is connected with lower connecting plate 1, and the middle part is connected with location-plate 3.Last fixed bar 22 upper ends are connected with upper junction plate 4, and the lower end is connected with location-plate 3, and the middle part connects pressing plate 5.
Last fixed bar 22 adopts screw thread to be rigidly connected with upper junction plate 4 and location-plate 3, and following fixed bar 21 adopts screw thread to be rigidly connected with pressing plate 5 and lower connecting plate 1.
Following fixed bar 21 passes the location-plate through hole 31 of location-plate 3, about the diameter big 8mm of the diameter of through hole than following fixed bar 21, so that location-plate 3 is when moving upward and the influence of 21 zerofriction forces of following fixed bar.
Last fixed bar 22 passes the pressing plate through hole 51 of pressing plate 5, about the diameter big 8mm of the diameter of pressing plate through hole 51 than last fixed bar 22, so that when going up fixed bar 22 and moving upward and the influence of 51 zerofriction forces of pressing plate through hole.
Lower connecting plate 1, fixed bar 21 and pressing plate 5 are fixed, and location-plate 3, last fixed bar 22 and upper junction plate 4 can upwards be made vertical frictionless motion along following fixed bar 21 under the sensor tension.
For reducing the experimental error in the measuring process better; When reversing arrangement is installed, two axial lines of fixed bar 21 and the axial line of location-plate through hole 31 are overlapped respectively, because the diameter of location-plate through hole 31 is than the big 8mm of diameter of following fixed bar 21; After two axial lines are transferred and are overlapped; Naturally just formed the space of 4mm between the inwall of following fixed bar 21 and location-plate through hole 31, thus when effectively having avoided location-plate 3 to move upward and 21 of following fixed bars form friction, cause the error of measurement.In like manner, the axial line of last fixed bar 22 and pressing plate through hole 51 also should be transferred to same axial location, to avoid friction, introduces measuring error.
The vibroshock dynamometer machine mainly is made up of vibroshock dynamometer machine board 8, vibroshock dynamometer machine column 9, vibroshock dynamometer machine crossbeam 10, vibroshock dynamometer machine frame 11, vibroshock dynamometer machine leading screw 12, vibroshock dynamometer machine spiral handle 13 and vibroshock dynamometer machine sensor 15; Also have compositions such as vibroshock dynamometer machine platform 17, and computer on the vibroshock dynamometer machine board 8.
Reversing arrangement converts the vibroshock dynamometer machine sensor 15 suffered power of pulling to the dynamometer 6 suffered power of pressing to.
Coupling arrangement 7 is fixed on the vibroshock dynamometer machine board 8; Coupling arrangement 7 prevents that on the one hand vibroshock dynamometer machine platform 17 and reversing arrangement from colliding each other and cause calibration error; On the other hand vibroshock dynamometer machine board and reversing arrangement are coupled together, the upper junction plate 4 on reversing arrangement top is connected with vibroshock dynamometer machine sensor 15 lower ends through pin 14.
Reversing arrangement principle of work: dynamometer 6 is placed the centre position, room between location-plate 3 and the pressing plate 5, the i.e. centre position of location-plate 3.When upper junction plate 4, go up fixed bar 22 and location-plate 3 integral body receive tension, when moving vertically upward, the dynamometer 6 that drives on the location-plate 3 moves upward together, the upper end of dynamometer 6 begins near fixed pressing plate 5; Pressing plate 5, following fixed bar 21 and lower connecting plate 1 are because be to link together through pin on the lower connecting plate 1 16 and the coupling arrangement 7 that is fixed on the vibroshock dynamometer machine 8, and lower connecting plate 1, fixed bar 21 and pressing plate 56 are fixed like this.When dynamometer 6 receives the extruding of fixed pressing plate 5 and the location-plate 3 that moves upward; Just indicated the size of power value; When being loaded into the load forces value of prior setting; Stop to load, according to the principle of balance between two forces in the mechanics, the suffered extruding force of dynamometer is the suffered value of thrust of end sensor on the reversing arrangement.So far, reversing arrangement has realized pulling to the power value smoothly to the conversion of pressing to the power value.
During calibration; Rotary vibration damper dynamometer machine spiral handle 13; Because vibroshock dynamometer machine screw mandrel 12 is that Luo revolves secondary the connection with vibroshock dynamometer machine frame 11, rises thereby drive vibroshock dynamometer machine crossbeam 10, thereby has applied the power that a pulls to value that direction makes progress for vibroshock dynamometer machine sensor 15; Send the power value to the top of reversing arrangement again through pin 14, drive location-plate 3 and move upward with fixed bar 22 and dynamometer 6; The bottom of reversing arrangement links into an integrated entity through Luo bolt rigidity with vibroshock dynamometer machine board 8 again, and promptly pressing plate 5 is fixed; Thereby up draw on the top that forms reversing arrangement, and the bottom of reversing arrangement is fixed, the dynamometer 6 that is clipped in the middle of the reversing arrangement receives the upwards extruding of tensile force f, has just indicated the suffered pulling force size B of vibroshock dynamometer machine sensor 15.Also can show a power value A on the dynamometer machine display screen this moment; Relative error
is the error of indication of dynamometer machine; In view of the above behind the calibration coefficient of results modification vibroshock dynamometer machine software; Again detect; Meet the requirements until the error of indication, can realize the power that the pulls to value calibration of vibroshock dynamometer machine.General 5 of selecting the sensor full scale to be uniformly distributed with are examined (being examined for 20%, 40%, 60%, 80%, 100%5 that is full scale) and are detected.
Above-mentioned embodiment is only as explanation of the present invention and unrestricted; Protection domain of the present invention also should comprise those conspicuous to those skilled in the art conversions, conversion, variation or substitute; And in the ken that those of ordinary skills possessed, can also under the prerequisite that does not break away from aim of the present invention, make various variations.
Claims (10)
1. a reversing arrangement is characterized in that this reversing arrangement comprises: lower connecting plate, time fixed bar, location-plate, upper junction plate, last fixed bar and pressing plate; Location-plate is provided with the location-plate through hole, and pressing plate is provided with the pressing plate through hole; Following fixed bar upper end is connected with pressing plate, and the lower end is connected with lower connecting plate, and the middle part is connected with location-plate; Last fixed bar upper end is connected with upper junction plate, and the lower end is connected with location-plate, and the middle part connects pressing plate; Following fixed bar passes the location-plate through hole, and last fixed bar passes the pressing plate through hole;
Said switching-over refers to the power of pulling to is converted into the power of pressing to.
2. reversing arrangement according to claim 1 is characterized in that: the said fixed bar and upper junction plate and location-plate gone up adopts screw thread to be rigidly connected, and following fixed bar and pressing plate and lower connecting plate adopt screw thread to be rigidly connected.
3. reversing arrangement according to claim 1 is characterized in that: said location-plate through-hole diameter than the big 8mm of following fixed bar diameter about, the pressing plate through-hole diameter than the big 8mm of last fixed bar diameter about.
4. reversing arrangement according to claim 1 is characterized in that: said fixed bar down and location-plate through hole axial line overlap, and last fixed bar and pressing plate through hole axial line overlap.
5. a vibroshock dynamometer machine pulls to power value calibration device, it is characterized in that: this calibrating installation comprises described reversing arrangement of claim 1-4 and dynamometer, and said dynamometer is arranged between said location-plate and the said pressing plate.
6. vibroshock dynamometer machine according to claim 5 pulls to power value calibration device, it is characterized in that: this calibrating installation also comprises a coupling arrangement, and this coupling arrangement is connected with said reversing arrangement lower connecting plate.
7. vibroshock dynamometer machine according to claim 6 pulls to power value calibration device, it is characterized in that: said coupling arrangement is arc link.
8. calibrate the method that the vibroshock dynamometer machine pulls to the power value for one kind, it is characterized in that: this method detects and calibrates the vibroshock dynamometer machine and pull to the power value through will the power of pulling to being converted into the power of pressing to.
9. calibration vibroshock dynamometer machine according to claim 8 pulls to the method for power value, it is characterized in that: this method adopts the described vibroshock dynamometer machine of the described arbitrary claim of claim 2-4 to pull to power value calibration device.
10. calibration vibroshock dynamometer machine according to claim 9 pulls to the method for power value; It is characterized in that: the vibroshock dynamometer machine pulls to the power value error of indication for
in view of the above behind the calibration coefficient of results modification vibroshock dynamometer machine software; Again detect, meet the requirements until the error of indication.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210119712.6A CN102661831B (en) | 2012-04-23 | 2012-04-23 | Reversing arrangement, vibroshock dynamometer machine pull to force value calibrating installation and calibration steps |
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| CN201210119712.6A CN102661831B (en) | 2012-04-23 | 2012-04-23 | Reversing arrangement, vibroshock dynamometer machine pull to force value calibrating installation and calibration steps |
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| CN102661831A true CN102661831A (en) | 2012-09-12 |
| CN102661831B CN102661831B (en) | 2016-03-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108132124A (en) * | 2016-11-30 | 2018-06-08 | 北京航天计量测试技术研究所 | Zero passage continuous force calibrating device for sensors |
| CN109114267A (en) * | 2018-10-09 | 2019-01-01 | 中国船舶重工集团公司第七0五研究所 | A kind of structure improving underwater sailing body floatation pod safety valve stability |
| CN109489896A (en) * | 2018-12-03 | 2019-03-19 | 江西洪都航空工业集团有限责任公司 | The small horizontal pressure metering device of force value dynamometer |
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| CN102661831B (en) | 2016-03-02 |
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