CN102998076B - Weight dropping impact measuring device - Google Patents
Weight dropping impact measuring device Download PDFInfo
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- CN102998076B CN102998076B CN201210484478.7A CN201210484478A CN102998076B CN 102998076 B CN102998076 B CN 102998076B CN 201210484478 A CN201210484478 A CN 201210484478A CN 102998076 B CN102998076 B CN 102998076B
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- weight
- clamping plate
- hydraulic
- trapezoidal
- sensor
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- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 230000003139 buffering effect Effects 0.000 claims abstract description 21
- 238000013016 damping Methods 0.000 claims abstract description 12
- 238000005259 measurement Methods 0.000 claims description 18
- 230000035939 shock Effects 0.000 claims description 16
- 239000000725 suspension Substances 0.000 claims description 11
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
Abstract
The embodiment of the invention provides a weight dropping impact measuring device which comprises a sensor (1), a test piece (2), a weight (4), a weight traction mechanism (5), a hydraulic damping buffering releasing mechanism (6) and a bracket (7). The sensor (1) is hung and fixed on the bracket (7), and the test piece (2) is hung and fixed below the sensor (1); the hydraulic damping buffering releasing mechanism (6) comprises a frame (61), a left clamping plate (62), a right clamping plate (63) and two groups of hydraulic buffering mechanisms; the lower portions of the left clamping plate (62) and the right clamping plate (63) form a trapezoid clamping cavity (69); the weight (4) comprises a trapezoid hanging portion (41); and the weight traction mechanism (5) lifts the weight (4) to enable the trapezoid hanging portion (41) to be located in the trapezoid clamping cavity (69). According to the weight dropping impact measuring device, action time of impact forces can be accurately adjusted, and the impact forces can be accurately measured under the condition that the sensor is not broken.
Description
Technical field
The present invention relates to a kind of Design of Mechanical Structure technical field, relate in particular to a kind of device of the impulsive force of measuring weight free dropping.
Background technology
In manufacturing commercial production and in overweight forwarding business, often have weight free dropping situation, this just requires the part that carries these weights need to have enough shock proof abilities, to ensure the safety of system.Sometimes the safety coefficient of simple increasing design can not well meet the demands, and this just need to carry out shock measurement to part or material.
As shown in Figure 1, in measuring process, the impulsive force of weight 4 loads on sensor 1 by test specimen 2 existing measurement mechanism, after the utmost point short time, remove at once, the time too short cannot Measurement accuracy, the oversize sensor 1 that can damage.This utmost point short time also may be different according to the difference of weight 4 quality simultaneously.
As Fig. 1 adopts electromagnetism release unit 3 to block or discharges weight 4, electromagnetism release unit 3 comprises electromagnet 31, bayonet lock 32, hanging sleeve 33 and hanging scroll 34, hanging sleeve 33 upper ends are connected with test specimen 2, hanging scroll 34 lower ends are connected with weight 4, hanging scroll 34 stretches in hanging sleeve 33 and is blocked by bayonet lock 32, electromagnet 31 is connected with bayonet lock 32 and controls it and move, electromagnet 31 energising pull-out bayonet locks 32, weight 4 drives hanging scroll 34 to move down and hangs on hanging sleeve 33, produce impulsive force, lifting weight 4 is removed impulsive force rapidly again, cannot realize precise time adjustment.
Summary of the invention
The object of this invention is to provide a kind of weight shock measurement device that comes off, can adjust accurately the action time of impulsive force, the size of Measurement accuracy impulsive force in the situation that not damaging sensor.
The object of the invention is to be achieved through the following technical solutions:
A kind of weight shock measurement device that comes off, comprises sensor 1, test specimen 2, weight 4, weight haulage gear 5, hydraulic damping buffering releasing mechanism 6 and support 7;
Sensor 1 hangs and is fixed on support 7, and test specimen 2 hangs and is fixed on sensor 1 below;
Hydraulic damping buffering releasing mechanism 6 comprises support body 61, left clamping plate 62, right clamping plate 63 and two groups of hydraulic buffering mechanisms; Support body 61 is fixed on test specimen 2 belows; Left clamping plate 62 are articulated with on support body 61 with the upper end of right clamping plate 63;
Hydraulic buffering mechanism comprises hydraulic cylinder 64, throttling valve 65, retaining valve 66 and accumulator 67; Piston rod 68 front ends of two hydraulic cylinders 64 peak at respectively the bottom of left clamping plate 62 or right clamping plate 63, and the opening size that makes left clamping plate 62 and the opening size of the below of right clamping plate 63 be less than top forms a up big and down small trapezoidal clamping chamber 69; Weight 4 comprises trapezoidal suspension part 41; Trapezoidal suspension part 41 cross sectional shapes are be less than trapezoidal clamping chamber 69 sizes up big and down small trapezoidal;
Inside described left clamping plate 62 and the below of right clamping plate 63, two edges are respectively equipped with block 71;
Weight haulage gear 5 weight 4 of slinging makes trapezoidal suspension part 41 be positioned at trapezoidal clamping chamber 69;
Connecting fluid cylinder pressure 64 and accumulator 67 after throttling valve 65 is in parallel with retaining valve 66, the closure of retaining valve 66 allows the hydraulic oil of accumulator 67 to flow into hydraulic cylinder 64 by retaining valve 66.
Described hydraulic cylinder 64 also comprises spring damper 641, and spring damper 641 is located in the hydraulic cylinder 64 of rodless cavity one side of piston 610.
Piston rod 68 front ends of two described hydraulic cylinders 64 are sphere.
Described weight haulage gear 5 comprises windlass 51, hanger 52 and fixed pulley 53; The wire rope of windlass 51 is by 53 pylons 52 of fixed pulley, and weight 4 is fixed on hanger 52.
As seen from the above technical solution provided by the invention, a kind of weight that the embodiment of the present invention provides shock measurement device that comes off, can adjust action time of impulsive force, the size of Measurement accuracy impulsive force in the situation that not damaging sensor accurately.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the come off structural representation of shock measurement device of the weight of prior art;
The come off structural representation of shock measurement device of the weight that Fig. 2 provides for the embodiment of the present invention;
The come off structural representation one of hydraulic damping buffering releasing mechanism of shock measurement device of the weight that Fig. 3 provides for the embodiment of the present invention;
The come off structural representation two of hydraulic damping buffering releasing mechanism of shock measurement device of the weight that Fig. 4 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to protection scope of the present invention.
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail.
Embodiment
As shown in Figure 2, a kind of weight shock measurement device that comes off, for measuring the shock load that test specimen 2 can bear under the freely falling body impact force action of weight 4 by sensor 1; In structure, specifically comprise sensor 1, test specimen 2, weight 4, weight haulage gear 5, hydraulic damping buffering releasing mechanism 6 and support 7;
Sensor 1 hangs and is fixed on support 7, and test specimen 2 hangs and is fixed on sensor 1 below; Hydraulic damping buffering releasing mechanism 6 hangs and is fixed on test specimen 2 belows; Concrete, as shown in Figure 3 and Figure 4, hydraulic damping buffering releasing mechanism 6 comprises support body 61, left clamping plate 62, right clamping plate 63 and two groups of hydraulic buffering mechanisms; Support body 61 is fixed on test specimen 2 belows; Left clamping plate 62 are articulated with support body 61 tops with the upper end of right clamping plate 63, and hydraulic buffering mechanism comprises hydraulic cylinder 64, throttling valve 65, retaining valve 66 and accumulator 67; Piston rod 68 front ends of two hydraulic cylinders 64 peak at respectively the bottom of left clamping plate 62 or right clamping plate 63, and the opening size that makes left clamping plate 62 and the opening size of the below of right clamping plate 63 be less than top forms a up big and down small trapezoidal clamping chamber 69; Weight 4 comprises trapezoidal suspension part 41; Trapezoidal suspension part 41 cross sectional shapes are be less than trapezoidal clamping chamber 69 sizes up big and down small trapezoidal; Weight haulage gear 5 weight 4 of slinging makes trapezoidal suspension part 41 be positioned at trapezoidal clamping chamber 69; And gapped between trapezoidal suspension part 41 and left clamping plate 62 and right clamping plate 63.Inside left clamping plate 62 described here and the below of right clamping plate 63, two edges are respectively equipped with block 71; For limiting the position of left clamping plate 62 and right clamping plate 63, block 71 can be two as shown in Figure 3 and Figure 4, and one of a side can be also two of four sides.Meanwhile, the position that block 71 can be adjusted left and right according to the difference of weight 4 or suspension part 41 is to obtain the trapezoidal clamping chamber 69 that lower opening varies in size.
Connecting fluid cylinder pressure 64 and accumulator 67 after throttling valve 65 is in parallel with retaining valve 66, the closure of retaining valve 66 allows the hydraulic oil of accumulator 67 to flow into hydraulic cylinder 64 by retaining valve 66.
Meanwhile, in order better to reduce the impact of impacting oil cylinder, described hydraulic cylinder 64 also comprises spring damper 641, and spring damper 641 is located in the hydraulic cylinder 64 of rodless cavity one side of piston 610.
In addition, piston rod 68 front ends of two described hydraulic cylinders 64 are sphere.Improve stressing conditions to reduce friction.
Meanwhile, described weight haulage gear 5 comprises windlass 51, hanger 52 and fixed pulley 53; The wire rope of windlass 51 is by 53 pylons 52 of fixed pulley, and weight 4 is fixed on hanger 52.
Principle of work of the present invention is as follows,
The original state first setting up an organization, to the rodless cavity internal-filling liquid force feed of hydraulic cylinder 64, left clamping plate 62 and right clamping plate 63 are pushed up to initial position to piston rod 68 front ends, left clamping plate 62 on block 71, namely make left clamping plate 62 and right clamping plate 63 form a up big and down small trapezoidal clamping chamber 69 with right clamping plate 63 difference items; At this moment close hydraulic cylinder 64 inlets, hydraulic cylinder 64 just can work alone with the hydraulic buffering mechanism that accumulator 67 forms with throttling valve 65, retaining valve 66.
When windlass 51 discharges after load, due to the Action of Gravity Field of weight 4, gravity acts on respectively the upper of left clamping plate 62 and right clamping plate 63, gravity is delivered on sensor 1 simultaneously, left clamping plate 62 act on respectively again on the piston rod 68 of two buffering hydraulic cylinders 64 in left and right with right clamping plate 63, be connected with throttling valve 65 and retaining valve 66 (also can use an one-way throttle valve to replace throttling valve 65 and retaining valve 66) due to hydraulic cylinder 64, in hydraulic cylinder 64, spring damper 641 is installed simultaneously, left clamping plate 62 can not be opened immediately with right clamping plate 63, simultaneously because the hydraulic oil of hydraulic cylinder 64 reaches in accumulator 67 by throttling valve 65, regulate the openings of sizes of throttling valve 65, just can adjust the speed that the piston rod 68 of hydraulic cylinder 64 moves.Therefore, just can adjust the speed that left clamping plate 62 and right clamping plate 63 are opened, thereby reach the time that loads on effect on sensor 1 that weight 4 produces of adjusting, to reach the effect of test impulsive force; When weight 4 departs from after hydraulic damping buffering releasing mechanism 6, the piston 610 of hydraulic cylinder 64 is due to the effect of accumulator 67, hydraulic oil arrives the rodless cavity of hydraulic cylinder 64 by retaining valve 66, in rodless cavity due to hydraulic cylinder 64, spring damper 641 is installed simultaneously, make piston 610 return to original position, piston rod 68 front ends push up left clamping plate 62 to initial position with right clamping plate 63, and left clamping plate 62 and right clamping plate 63 difference items are on block 71.So that test next time.
The above; only for preferably embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (4)
1. the weight shock measurement device that comes off, it is characterized in that, comprise sensor (1), test specimen (2), weight (4), weight haulage gear (5), hydraulic damping buffering releasing mechanism (6) and support (7);
Sensor (1) hangs and is fixed on support (7) above, and test specimen (2) hangs and is fixed on sensor (1) below;
Hydraulic damping buffering releasing mechanism (6) comprises support body (61), left clamping plate (62), right clamping plate (63) and two groups of hydraulic buffering mechanisms; Support body (61) is fixed on test specimen (2) below; Left clamping plate (62) are articulated with on support body (61) with the upper end of right clamping plate (63);
Hydraulic buffering mechanism comprises hydraulic cylinder (64), throttling valve (65), retaining valve (66) and accumulator (67); Piston rod (68) front end of two hydraulic cylinders (64) peaks at respectively the bottom of left clamping plate (62) or right clamping plate (63), and the opening size that makes left clamping plate (62) and the opening size of the below of right clamping plate (63) be less than top forms a up big and down small trapezoidal clamping chamber (69); Weight (4) comprises trapezoidal suspension part (41); Trapezoidal suspension part (41) cross sectional shape is for being less than the up big and down small trapezoidal of trapezoidal clamping chamber (69) size;
Inside described left clamping plate (62) and the below of right clamping plate (63), two edges are respectively equipped with block (71);
Weight haulage gear (5) weight (4) of slinging makes trapezoidal suspension part (41) be positioned at trapezoidal clamping chamber (69);
Connecting fluid cylinder pressure (64) and accumulator (67) after throttling valve (65) is in parallel with retaining valve (66), the closure of retaining valve (66) allows the hydraulic oil of accumulator (67) to flow into hydraulic cylinder (64) by retaining valve (66).
2. the weight according to claim 1 shock measurement device that comes off, it is characterized in that, described hydraulic cylinder (64) also comprises spring damper (641), and spring damper (641) is located in the hydraulic cylinder (64) of rodless cavity one side of piston (610).
3. the weight according to claim 1 and 2 shock measurement device that comes off, is characterized in that, piston rod (68) front end of described two hydraulic cylinders (64) is sphere.
4. the weight according to claim 1 and 2 shock measurement device that comes off, is characterized in that, described weight haulage gear (5) comprises windlass (51), hanger (52) and fixed pulley (53); The wire rope of windlass (51) plays pylon (52) by fixed pulley (53), and weight (4) is fixed on hanger (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210484478.7A CN102998076B (en) | 2012-11-23 | 2012-11-23 | Weight dropping impact measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210484478.7A CN102998076B (en) | 2012-11-23 | 2012-11-23 | Weight dropping impact measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102998076A CN102998076A (en) | 2013-03-27 |
| CN102998076B true CN102998076B (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210484478.7A Active CN102998076B (en) | 2012-11-23 | 2012-11-23 | Weight dropping impact measuring device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792631A (en) * | 2015-05-07 | 2015-07-22 | 山东建筑大学 | Fire disaster impact integral testing device |
| CN108871722A (en) * | 2018-08-24 | 2018-11-23 | 中国标准化研究院 | Mechanical shock test device |
| CN110513377A (en) * | 2019-09-19 | 2019-11-29 | 中国科学院武汉岩土力学研究所 | Locking device and impact device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4426875A (en) * | 1981-12-14 | 1984-01-24 | Rca Corporation | Strain measurement |
| CN101315311A (en) * | 2008-07-01 | 2008-12-03 | 徐州天地重型机械制造有限公司 | Energy-saving hydraulic sealing experimental bench and method thereof |
| CN102401729A (en) * | 2011-08-31 | 2012-04-04 | 中国印钞造币总公司 | Multifunctional box falling test machine |
| CN102621013A (en) * | 2012-03-31 | 2012-08-01 | 中国矿业大学(北京) | Dynamic performance testing system |
| CN202916065U (en) * | 2012-11-23 | 2013-05-01 | 湖州师范学院 | Weight drop impulse measuring device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101107218B1 (en) * | 2009-12-15 | 2012-01-25 | 국방과학연구소 | Releasing device for free fall and testing method using the same |
-
2012
- 2012-11-23 CN CN201210484478.7A patent/CN102998076B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4426875A (en) * | 1981-12-14 | 1984-01-24 | Rca Corporation | Strain measurement |
| CN101315311A (en) * | 2008-07-01 | 2008-12-03 | 徐州天地重型机械制造有限公司 | Energy-saving hydraulic sealing experimental bench and method thereof |
| CN102401729A (en) * | 2011-08-31 | 2012-04-04 | 中国印钞造币总公司 | Multifunctional box falling test machine |
| CN102621013A (en) * | 2012-03-31 | 2012-08-01 | 中国矿业大学(北京) | Dynamic performance testing system |
| CN202916065U (en) * | 2012-11-23 | 2013-05-01 | 湖州师范学院 | Weight drop impulse measuring device |
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| CN102998076A (en) | 2013-03-27 |
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Effective date of registration: 20231218 Address after: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Dragon totem Technology (Hefei) Co.,Ltd. Address before: 313000 Xueshi Road No. 1, Wuxing District, Huzhou City, Zhejiang Province Patentee before: HUZHOU TEACHERS College |