CN102607744B - Gas spring force measurer - Google Patents
Gas spring force measurer Download PDFInfo
- Publication number
- CN102607744B CN102607744B CN201210071566.4A CN201210071566A CN102607744B CN 102607744 B CN102607744 B CN 102607744B CN 201210071566 A CN201210071566 A CN 201210071566A CN 102607744 B CN102607744 B CN 102607744B
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- China
- Prior art keywords
- bar
- air spring
- pulley
- rod
- spring force
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- 238000004804 winding Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Abstract
The invention relates to the field of detection of spring force, in particular to a gas spring force measurer, which comprises a first rod and a second rod. The first rod and the second rod are mutually hinged, a rod body of the first rod and a rod body of the second rod are respectively hinged with two ends of a gas spring, the first rod is provided with a pulley, the second rod is provided with a rotatable take-up reel, one end of a stay cord connected with a dynamometer is fixed on the second rod, the other end of the stay cord is fixedly wound on the take-up reel after being wound around the pulley, the gas spring is mounted between the first rod and the second rod in a free state, at the moment, the gas spring is in a longest extension state, the take-up reel rotates to pull the stay cord, so that an included angled between the two rods is reduced, the gas spring is compressed, the take-up reel stops rotating when the gas spring is compressed at an optional length, a numerical value on the dynamometer is read, and an elasticity value of the gas spring can be calculated according to geometrical relationship. The gas spring force measurer is simple in operation, low in cost, small in size, convenient to carry and wide in application range.
Description
Technical field
The present invention relates to spring force detection field, particularly air spring force measuring device.
Background technology
Air spring (gas spring) is a kind ofly can play support, buffering, braking, highly regulate and the accessory of the function such as angular adjustment.At present, this product has all obtained application widely in fields such as Medical Devices, automobile, furniture, Weaving device, processing industries.But the machining precision of air spring, sealing, environment for use temperature is larger on the impact of air spring power value, for example air spring is on the front and rear covers of automobile, air spring power value size can affect the opening force of front and rear covers and close power, the anchorage force that air spring provides under the environment of low temperature diminishes, causing opening force to diminish even cannot keep front and rear covers in complete opening, and the power of closing that can cause front and rear covers under hot environment becomes large, therefore whether reach correlation technique requirement if before assembling, needing to detect air spring power value size, checking air spring is at rugged surroundings (height, low temperature) under, can meet request for utilization.Majority is to adopt spring tension and compression testing machine to measure at present, makes to measure in this way not only complicated operation, needs special frock clamp; And apparatus expensive is not portable.
Summary of the invention
The object of this invention is to provide a kind of simple to operately, volume is little, portable air spring force measuring device.
For achieving the above object, the present invention has adopted following technical scheme: a kind of air spring force measuring device, comprise the first bar and the second bar that are hinged, hinged with the two ends of air spring respectively on the first described bar and the shaft of the second bar, the first bar is provided with pulley, the second bar is provided with rotating take-up reel, and the one end that is connected with the stay cord of dynamometer is fixed on the second bar, and after the other end is walked around pulley, winding is fixed on take-up reel.
Owing to adopting above technical scheme, the air spring under free state is arranged between the first bar and the second bar, now air spring is in range state, rotate wire spool and pull stay cord, the angle between two rod members diminishes, and air spring is compressed, the random length of the choosing air spring wire spool that stops operating, read the numerical value on dynamometer, according to geometric relationship, can calculate the value of elastic of air spring, simple to operate, cost is low, volume is little, is easy to carry, applied widely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, a kind of air spring force measuring device, comprise the first bar 10 and the second bar 20 that are hinged, hinged with the two ends of air spring 30 respectively on the first described bar 10 and the shaft of the second bar 20, the first bar 10 is provided with pulley 11, the second bar 20 is provided with rotating take-up reel 22, and the one end that is connected with the stay cord 70 of dynamometer 60 is fixed on the second bar 20, and the other end is walked around the rear winding of pulley 11 on take-up reel 22.Air spring 30 under free state is arranged between the first bar 10 and the second bar 20, now air spring 30 is in range state, now dynamometer is adjusted to zero graduation, rotate take-up reel 22 and pull stay cord 70, angle between two rod members diminishes, and air spring 30 is compressed, the random length of choosing air spring 30 take-up reel 22 that stops operating, read the numerical value on dynamometer 60, according to geometric relationship, can calculate the value of elastic of air spring 30.Can be with reference to following embodiment when actual measurement: when take-up reel 22 is turned to 10,20,30,40 circle, measure respectively and record length L 1, L2, L3, the L4 of air spring 30, read respectively simultaneously and record reading F1, F2, F3, the F4 of dynamometer 60, according to the numerical value of record, draw out the stiffness curve of the power value-length of air spring 30.Can calculate the longest and power value the most in short-term of air spring 30 simultaneously.If in order to increase the accuracy of measurement result, can in measuring process, increase and measure number of times; And can be by take multiple measurements averaged under a certain length.This device is simple to operate, and cost is low, and volume is little, is easy to carry, applied widely.
On the second described bar 20, be provided with the first fixed pulley 21, stay cord 70 is fixed on take-up reel 22 after walking around and walking around the first fixed pulley 21 after pulley 11 again, the first 21 pairs, fixed pulley stay cord 70 plays the effect of guiding, movement locus in the folding and unfolding process of assurance stay cord 70 is consistent, prevent that the angle between stay cord 70 and the second bar 20 from changing, and guarantees the degree of accuracy of result of calculation.
On the first described bar 10 and the bar length direction of the second bar 20, all a plurality of hinge units are arranged at interval, and the distance between two adjacent hinge units on same shaft equates, this structure can realize the value of elastic of the air spring 30 of measuring different size, distance between adjacent two hinge units equates to simplify the conversion relation of value of elastic, reduces workload.
The first described bar 10 and the second bar 20 hinged places are provided with bearing, on the bottom surface of the second described bar 20, be connected with back up pad 23, these back up pad 23 intervals are furnished with a plurality of, the size of back up pad 23 on the second bar 20 Widths is greater than the width of the second bar 20, in the present invention, the second plate 20 is for being placed on work top, back up pad 23 has increased the contact area of the second plate 20 with work top, thereby improves the stability of this device, in use without fixing in addition this device.
The ran of described stay cord 70 between pulley 11 and the first fixed pulley 21 is parallel to air spring 30, simplified geometric relationship, namely simplified conversion relation, is convenient to calculate the value of elastic of air spring 30.
As shown in Figure 1, it is relative that the first described bar 10 and the cross section of the second bar 20 are all notches U-shaped and two bars, and pulley 11 and the first fixed pulley 21 lay respectively in corresponding notch, and this structure is convenient to fixed block 11 and the first fixed pulley 21, both are placed in notch, reduce the volume of this device.
Described stay cord 70 is wire rope, and the winding opposite direction of stay cord 70 on pulley 11 and the first fixed pulley 21, is connected with rotating handle 24 on the second described bar 20, and described take-up reel 22 is fixed on handle 24.The winding opposite direction of stay cord 70 on pulley 11 and the first fixed pulley 21 can tensioning stay cord 70, prevents that relaxation from appearring in stay cord 70, thereby guarantees the degree of accuracy of measurement result, handle 24 rapid operations
Described hinge unit comprises the nut 40 being fixed on the first bar 10 or the second bar 20 and the ball stud that is fixed in air spring 30, on described ball stud, be provided with bolt, screw bolt and nut 40 forms threaded engagement, the distance that is positioned at the nut 40 distance two bar pin joints on the first bar 10 and the second bar 20 relative positions equates, guarantee that the triangle that the first bar 10, the second bar 20 and air spring 30 form is isosceles triangle, further simplify geometric relationship.Jointed shaft in the present invention between the first bar 10 or the second bar 20 and the nut 40 on two bars are positioned on same level line.
If setting stay cord 70 is A with the length of two rod member pin joints of point of fixity distance of rod member 20, the length that two rod member pin joints of nut 40 distances of air spring 30 are installed is a, as shown in Figure 1, the two section rans of stay cord 70 between the first bar 10 and the second bar 20 are all parallel to air spring 30; Therefore the power value that pulley 11 acts on rod member 10 is the twice of dynamometer 60 values of reading, and pulley 11 acts on power value on rod member 10 and the power of air spring 30 is worth proportional relation; According to geometric relationship, can draw formula:
Air spring power value=(2A * dynamometer reading)/a
The reading that only need to read dynamometer 60 during measurement just can calculate the value of elastic of air spring 30 under this state, and simple and convenient, cost is low, applied widely.
Claims (8)
1. an air spring force measuring device, it is characterized in that: comprise the first bar (10) and the second bar (20) that are hinged, described the first bar (10) and the shaft of the second bar (20) are hinged with the two ends of air spring (30) respectively, the first bar (10) is provided with pulley (11), the second bar (20) is provided with rotating take-up reel (22), the one end that is connected with the stay cord (70) of dynamometer (60) is fixed on the second bar (20), after the other end is walked around pulley (11), winding is fixed on take-up reel (22), the ran that is connected with dynamometer (60) on described stay cord (70) is parallel to air spring (30).
2. air spring force measuring device according to claim 1, it is characterized in that: on described the second bar (20), be provided with the first fixed pulley (21), stay cord (70) is fixed on take-up reel (22) after walking around and walking around the first fixed pulley (21) after pulley (11) again.
3. air spring force measuring device according to claim 1, it is characterized in that: on described the first bar (10) and the bar length direction of the second bar (20), all a plurality of hinge units are arranged at interval, this hinge unit for and the two ends of air spring (30) hinged, and the distance between two adjacent hinge units on same shaft is equal.
4. air spring force measuring device according to claim 1, it is characterized in that: described the first bar (10) and the second bar (20) hinged place are provided with bearing, on the bottom surface of described the second bar (20), be connected with back up pad (23), this back up pad (23) interval is furnished with a plurality of, and the size of back up pad (23) on the second bar (20) Width is greater than the width of the second bar (20).
5. air spring force measuring device according to claim 1 and 2, is characterized in that: the ran that described stay cord (70) is positioned between pulley (11) and the first fixed pulley (21) is parallel to air spring (30).
6. according to the air spring force measuring device described in claim 1 or 2 or 3 or 4, it is characterized in that: it is relative that described the first bar (10) and the cross section of the second bar (20) are all notches U-shaped and two bars, and pulley (11) and the first fixed pulley (21) lay respectively in corresponding notch.
7. air spring force measuring device according to claim 2, it is characterized in that: described stay cord (70) is wire rope, the winding opposite direction of stay cord (70) on pulley (11) and the first fixed pulley (21), on described the second bar (20), be connected with rotating handle (24), described take-up reel (22) is fixed on handle (24).
8. air spring force measuring device according to claim 3, it is characterized in that: described hinge unit comprises the ball stud that is fixed on the nut (40) on the first bar (10) or the second bar (20) and is fixed in air spring (30), on described ball stud, be provided with bolt, screw bolt and nut (40) forms threaded engagement, and the distance that is positioned at nut (40) the distance two bar pin joints on the first bar (10) and the second bar (20) relative position equates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210071566.4A CN102607744B (en) | 2012-03-17 | 2012-03-17 | Gas spring force measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210071566.4A CN102607744B (en) | 2012-03-17 | 2012-03-17 | Gas spring force measurer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102607744A CN102607744A (en) | 2012-07-25 |
| CN102607744B true CN102607744B (en) | 2014-04-02 |
Family
ID=46525321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210071566.4A Active CN102607744B (en) | 2012-03-17 | 2012-03-17 | Gas spring force measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102607744B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0047403A1 (en) * | 1980-09-06 | 1982-03-17 | Alois Kober KG, Maschinenfabrik | Handbrake device for vehicles with a pivotable handbrake lever |
| EP0984321A1 (en) * | 1998-08-20 | 2000-03-08 | Izumi-Cosmo Co., Ltd. | Portable projection screen assembly |
| DE202004020900U1 (en) * | 2004-04-23 | 2006-11-02 | Hetal-Werke Franz Hettich Gmbh & Co. Kg | Hinge lever mechanism for furniture chest lid has gas spring operating through cam and lever action |
| DE102009040010A1 (en) * | 2009-07-02 | 2011-01-05 | Grammer Ag | Change of spring force by lever |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006011455A1 (en) * | 2006-03-13 | 2007-09-20 | Stabilus Gmbh | Joint arrangement, in particular multi-joint hinge |
-
2012
- 2012-03-17 CN CN201210071566.4A patent/CN102607744B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0047403A1 (en) * | 1980-09-06 | 1982-03-17 | Alois Kober KG, Maschinenfabrik | Handbrake device for vehicles with a pivotable handbrake lever |
| EP0984321A1 (en) * | 1998-08-20 | 2000-03-08 | Izumi-Cosmo Co., Ltd. | Portable projection screen assembly |
| DE202004020900U1 (en) * | 2004-04-23 | 2006-11-02 | Hetal-Werke Franz Hettich Gmbh & Co. Kg | Hinge lever mechanism for furniture chest lid has gas spring operating through cam and lever action |
| DE102009040010A1 (en) * | 2009-07-02 | 2011-01-05 | Grammer Ag | Change of spring force by lever |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102607744A (en) | 2012-07-25 |
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