CN104865037A - Seat vertical impact durability test method - Google Patents
Seat vertical impact durability test method Download PDFInfo
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- CN104865037A CN104865037A CN201510157613.0A CN201510157613A CN104865037A CN 104865037 A CN104865037 A CN 104865037A CN 201510157613 A CN201510157613 A CN 201510157613A CN 104865037 A CN104865037 A CN 104865037A
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Abstract
The invention discloses a seat vertical impact durability test method. Firstly a seat is fixed on the pedestal of a test machine and a counterweight is hung on a crossbeam; coarse adjustment devices and a fine adjustment device of the test machine are utilized to adjust initial falling height of the counterweight; impact to the seat through free falling of the counterweight is realized by utilizing upper and lower sucking discs of the test machine and upward and downward elevating of a telescopic air rod, and the process of adsorption back to the initial height after impact is completed by upward and downward elevating of the telescopic air rod; and one time of recording is completed by a counter connected with the telescopic air rod when the telescopic air rod telescopes for one time until the seat is broken after testing. The coarse adjustment devices and the fine adjustment device are utilized to adjust falling height of the counterweight mutually so that efficiency is high and precision is better.
Description
Technical field
The present invention relates to a kind of chair vertical and impact durability test method.
Background technology
Some enterprises focus on the firmness of seat and so on very much when purchasing office furniture now, what relatively value is serviceable life of chair, even manufacturer all to be allowed to provide corresponding test report, survey report etc. during buying, so a lot of furniture enterprise all can through strict endurance test to the product of oneself company now, but how to allow this part test become simple, quick, and very targeted again, be a problem needing to solve.
There is very high requirement to the fastness of seat on the market now, such as antifatigue test is greater than several ten thousand times, anti-impact force is not less than how many oxen etc., this class testing has special test machine to test substantially, such as shock resistance test, all adopt weight freely falling body to clash into and simulate the free process sat on seat of people downwards, for this kind of test machine, the height of drop of weight is a very important parameter.
Summary of the invention
The technical issues that need to address of the present invention are, provide a kind of chair vertical to impact durability test method, utilize rack and rinion adjustment and micromatic setting mutually to adjust weight descent altitude, efficiency is high, and precision is better.
Technical scheme of the present invention is: a kind of chair vertical impacts durability test method, method of testing is based on test machine, test machine comprises base, seat to be tested is located on base, base is provided with column in the both sides of seat, column is provided with slide rail, slide in slide rail and have draw runner, rack and rinion adjustment is provided with between column and draw runner, crossbeam is fixed with between described two draw runners, flexible gas bar is provided with in the middle of crossbeam, sucker is connected with below flexible gas bar, sucker comprises sucker and lower sucker, upper sucker is connected with flexible gas bar, lower sucker is connected with weight block, described cross rail top is provided with upper bracket, described flexible gas masthead portion is connected with upper bracket, the micromatic setting for regulating flexible gas bar to be elevated is provided with in upper bracket, flexible gas bar is connected with counter, concrete method of testing is as follows:
1) first by chair mounted to be tested on base, the weight block choosing predetermined weight is suspended on lower sucker, and is placed together with weight block on the seat by lower sucker;
2) regulate rack and rinion adjustment, crossbeam is declined, the upper sucker that now flexible gas bar and flexible gas bar connect also declines together, declines until upper sucker contacts with lower sucker, produces magnetic after now going up sucker energising, and attracting with lower sucker;
3) regulate rack and rinion adjustment, make crossbeam increase, after rising to specified altitude assignment, turn and regulated by micromatic setting, slowly regulate flexible relative displacement between gas bar and crossbeam, until adjust in the margin tolerance of predetermined altitude;
4) now upper sucker is carried out power-off, make it lose magnetism, lower sucker strikes seat with weight block freely falling body;
5) open the Telescopic of flexible gas bar, sucker is declined again, being energized is drawn onto elemental height by lower sucker, repeats step 4 afterwards);
6) flexible gas bar often flexible once, counter records once, until seat is knocked rear breaking.
Preferably, described micromatic setting is ball screw framework, and upper bracket is provided with trimming hand wheel, and described flexible gas bar is connected with the screw rod in ball-screw.
Preferably, described rack and rinion adjustment is gear & rack structure, and described draw runner is provided with tooth bar, and described column is provided with coarse adjustment handwheel, and coarse adjustment handwheel is connected with gear.
Preferably, described column sidewall is provided with pin-and-hole, and pin-and-hole interpolation has the latch for draw runner and column being fixed.
Preferably, described rack and rinion adjustment is hydraulic pump, and described column is provided with hydraulic pump control panel.
Preferably, described weight block is double-decker, and internal layer is derby, and skin is rubber covering.
Preferably, described weight block is sand bag.
Preferably, the horizontal slide rail that described base is provided with 2 longitudinal directions and establishes, slides in horizontal slide rail and has two fixed mounts, and after two front chair legs of described seat and two, chair pin is separately fixed on two fixed mounts.
Preferably, described fixed mount has the fixed jack of more than 2, fixed jack sidewall is provided with trip bolt, the mounting hole that fixed mount two side ends is provided with longitudinal direction and establishes, and is provided with the screw be fixed to by fixed mount on base in mounting hole.
Preferably, the fixed jack on every root fixed mount is 8, and every side is 4, and the diameter of fixed jack is respectively 6mm, 8mm, 10mm, 12mm.
After adopting the technical program, the device that two kinds regulate weight falling head is provided in this programme, be respectively rack and rinion adjustment and micromatic setting, when practical adjustments, can first adopt rack and rinion adjustment tentatively to regulate on a large scale, the stroke of adjustment be larger, etc. when being transferred to close to intended target height, micromatic setting can be adopted slowly to be adjusted to intended target height, the speed regulated can be ensured, the precision regulated can be ensured again.
Accompanying drawing explanation
Accompanying drawing 1 is the schematic three dimensional views of test machine embodiment 1;
Accompanying drawing 2 is the front elevational schematic of test machine embodiment 1;
Accompanying drawing 3 is the enlarged diagram at fixed mount place in accompanying drawing 1;
Accompanying drawing 4 is the schematic diagram of test machine embodiment 2.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
As shown in Figure 1 to Figure 3, a kind of chair vertical impacts durability test method, this method of testing is based on test machine, test machine comprises base 1, seat 2 to be tested is located on base, base divides laying to be provided with 2 root posts 11 in the both sides of seat, column is provided with the slide rail of Vertical dimension, slide in slide rail and have draw runner, rack and rinion adjustment is provided with between column and draw runner, the stroke that rack and rinion adjustment regulates is larger, crossbeam 3 is fixed with between described two draw runners, flexible gas bar 4 is provided with in the middle of crossbeam, sucker 5 is connected with below flexible gas bar, sucker comprises sucker 51 and lower sucker 52, upper sucker energising produces strong magnetic, after power-off, magnetic disappears, on, a rope is had to connect between lower sucker, wherein go up sucker to be connected with flexible gas bar, upper sucker is with the oscilaltion of flexible gas bar, lower sucker is connected with weight block 6, when upper sucker produces magnetic, hold with sucker under general who has surrendered under flexible lower beam, then rise together, when upper sucker magnetic disappears, lower sucker declines with weight freely falling body, strike on seat, described cross rail top is provided with upper bracket 31, described flexible gas masthead portion is connected with upper bracket, the micromatic setting for regulating flexible gas bar to be elevated is provided with in upper bracket, the stroke that micromatic setting regulates is less, precision is high, , flexible gas bar is connected with counter, concrete method of testing is as follows:
1) first by chair mounted to be tested on base, the weight block choosing predetermined weight is suspended on lower sucker, and is placed together with weight block on the seat by lower sucker;
2) regulate rack and rinion adjustment, crossbeam is declined, the upper sucker that now flexible gas bar and flexible gas bar connect also declines together, declines until upper sucker contacts with lower sucker, produces magnetic after now going up sucker energising, and attracting with lower sucker;
3) regulate rack and rinion adjustment, make crossbeam increase, after rising to specified altitude assignment, turn and regulated by micromatic setting, slowly regulate flexible relative displacement between gas bar and crossbeam, until adjust in the margin tolerance of predetermined altitude;
4) now upper sucker is carried out power-off, make it lose magnetism, lower sucker strikes seat with weight block freely falling body;
5) open the Telescopic of flexible gas bar, sucker is declined again, being energized is drawn onto elemental height by lower sucker, repeats step 4 afterwards);
6) flexible gas bar often flexible once, counter records once, until seat is knocked rear breaking.
After adopting the technical program, the device that two kinds regulate weight falling head is provided in this programme, be respectively rack and rinion adjustment and micromatic setting, when practical adjustments, can first adopt rack and rinion adjustment tentatively to regulate on a large scale, the stroke of adjustment be larger, etc. when being transferred to close to intended target height, micromatic setting can be adopted slowly to be adjusted to intended target height, the speed regulated can be ensured, the precision regulated can be ensured again.
As preferably, described micromatic setting is ball screw framework, upper bracket is provided with trimming hand wheel 311, described flexible gas bar is connected with the screw rod in ball-screw, ball screw framework is the mechanical mechanism of comparative maturity, when rotating trimming hand wheel, drive screw turns, slide block during bolt rotary on drive screw slides up and down, slide block is connected with flexible gas bar, indirect driving is stretched the oscilaltion of gas bar, as preferably, described rack and rinion adjustment is gear & rack structure, described draw runner is provided with tooth bar, described column is provided with coarse adjustment handwheel 111, coarse adjustment handwheel is connected with gear, the stroke that gear & rack structure regulates is larger, structure is also comparatively simple, column sidewall described is in addition provided with pin-and-hole 112, pin-and-hole interpolation has the latch for draw runner and column being fixed, and after utilizing rack and rinion adjustment to complete preliminary adjustment, draw runner and column is fixed with latch, thus fixing horizontal depth of beam, the number of pin-and-hole has multiple.
In addition, the target of this programme test is the impulsive force durable test that weight clashes into seat, and the disposable impact test of non-test, therefore the weight block surface of clashing into can not too rigidity, not so easy seat surface to be smashed, preferably, described weight block is double-decker, internal layer is derby, and skin is rubber covering, or described weight block is sand bag.
As shown in Figure 3, conveniently seat is fixed on base, the horizontal slide rail 12 that described base is provided with 2 longitudinal directions and establishes, slide in horizontal slide rail and have two fixed mounts 7, after two front chair legs of described seat and two, chair pin is separately fixed on two fixed mounts, article two, fixed mount can move forward and backward, can regulate according to different chair foot spacing, fixed form between chair pin and fixed mount can be welded and fixed, also can be detachable fixing, scheme in Fig. 3 is detachable fixing, described fixed mount there is the fixed jack 71 of more than 2, fixed jack sidewall is provided with trip bolt 711, chair pin to insert in fixed jack and fixes with trip bolt, because different seats, the diameter of steel tube of its chair pin is also different, so in this programme, fixed jack on every root fixed mount is 8, every side is 4, the diameter of fixed jack is respectively 6mm, 8mm, 10mm, 12mm, different jacks can plug in the chair pin of different sizes, fixed mount two side ends is provided with longitudinal direction and the mounting hole 72 established in addition, the screw be fixed to by fixed mount on base is provided with in mounting hole.
As shown in Figure 4, for the another kind of embodiment of test machine, be that described rack and rinion adjustment is hydraulic pump with the difference of test machine embodiment 1, described column is provided with hydraulic pump control panel 113, regulating with hydraulic pump regulates more laborsaving compared to rack-and-pinion, utilize hydraulic pump to regulate simultaneously and also eliminate the mechanism fixing draw runner with latch, directly with the height of the pressure locking draw runner of hydraulic pump, and in the present embodiment, increased horizontal depth of beam display screen 32, when utilizing hydraulic pump to regulate, horizontal depth of beam can be presented on height display screen intuitively, whole method of testing is in the same manner as in Example 1.
Claims (10)
1. a chair vertical impacts durability test method, method of testing is based on test machine, it is characterized in that: test machine comprises base (1), base is provided with column (11) in the both sides of seat, column is provided with slide rail, slide in slide rail and have draw runner, rack and rinion adjustment is provided with between column and draw runner, crossbeam (3) is fixed with between described two draw runners, flexible gas bar (4) is provided with in the middle of crossbeam, sucker (5) is connected with below flexible gas bar, sucker comprises sucker (51) and lower sucker (52), upper sucker is connected with flexible gas bar, lower sucker is connected with weight block (6), described cross rail top is provided with upper bracket (31), described flexible gas masthead portion is connected with upper bracket, the micromatic setting for regulating flexible gas bar to be elevated is provided with in upper bracket, flexible gas bar is connected with counter, concrete method of testing is as follows:
1) first by chair mounted to be tested on base, the weight block choosing predetermined weight is suspended on lower sucker, and is placed together with weight block on the seat by lower sucker;
2) regulate rack and rinion adjustment, crossbeam is declined, the upper sucker that now flexible gas bar and flexible gas bar connect also declines together, declines until upper sucker contacts with lower sucker, produces magnetic after now going up sucker energising, and attracting with lower sucker;
3) regulate rack and rinion adjustment, make crossbeam increase, after rising to specified altitude assignment, turn and regulated by micromatic setting, slowly regulate flexible relative displacement between gas bar and crossbeam, until adjust in the margin tolerance of predetermined altitude;
4) now upper sucker is carried out power-off, make it lose magnetism, lower sucker strikes seat with weight block freely falling body;
5) open the Telescopic of flexible gas bar, sucker is declined again, being energized is drawn onto elemental height by lower sucker, repeats step 4 afterwards);
6) flexible gas bar often flexible once, counter records once, until seat is knocked rear breaking.
2. a kind of chair vertical according to claim 1 impacts durability test method, it is characterized in that: described micromatic setting is ball screw framework, upper bracket is provided with trimming hand wheel (311), and described flexible gas bar is connected with the screw rod in ball-screw.
3. a kind of chair vertical according to claim 1 impacts durability test method, it is characterized in that: described rack and rinion adjustment is gear & rack structure, described draw runner is provided with tooth bar, and described column is provided with coarse adjustment handwheel (111), and coarse adjustment handwheel is connected with gear.
4. a kind of chair vertical according to claim 3 impacts durability test method, it is characterized in that: described column sidewall is provided with pin-and-hole (112), and pin-and-hole interpolation has the latch for draw runner and column being fixed.
5. a kind of chair vertical according to claim 1 impacts durability test method, and it is characterized in that: described rack and rinion adjustment is hydraulic pump, described column is provided with hydraulic pump control panel (113).
6. a kind of chair vertical according to claim 1 impacts durability test method, and it is characterized in that: described weight block is double-decker, internal layer is derby, and skin is rubber covering.
7. a kind of chair vertical according to claim 1 impacts durability test method, it is characterized in that: described weight block is sand bag.
8. a kind of chair vertical according to claim 1 impacts durability test method, it is characterized in that: the horizontal slide rail (12) that described base is provided with 2 longitudinal directions and establishes, slide in horizontal slide rail and have two fixed mounts (7), after two front chair legs of described seat and two, chair pin is separately fixed on two fixed mounts.
9. a kind of chair vertical according to claim 8 impacts durability test method, it is characterized in that: the fixed jack (71) described fixed mount having more than 2, fixed jack sidewall is provided with trip bolt (711), the mounting hole (72) that fixed mount two side ends is provided with longitudinal direction and establishes, is provided with the screw be fixed to by fixed mount on base in mounting hole.
10. a kind of chair vertical according to claim 9 impacts durability test method, it is characterized in that: the fixed jack on every root fixed mount is 8, and every side is 4, and the diameter of fixed jack is respectively 6mm, 8mm, 10mm, 12mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510157613.0A CN104865037B (en) | 2015-04-03 | 2015-04-03 | A kind of chair vertical impacts durability test method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510157613.0A CN104865037B (en) | 2015-04-03 | 2015-04-03 | A kind of chair vertical impacts durability test method |
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| CN104865037A true CN104865037A (en) | 2015-08-26 |
| CN104865037B CN104865037B (en) | 2017-11-28 |
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Cited By (9)
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| CN106353061A (en) * | 2016-08-31 | 2017-01-25 | 东风李尔汽车座椅有限公司 | Force measurement experimental platform for automobile seat |
| CN107132020A (en) * | 2017-05-24 | 2017-09-05 | 天能电池集团有限公司 | A kind of cell jar apparatus for impact testing |
| CN107323312A (en) * | 2017-07-24 | 2017-11-07 | 江西凯马百路佳客车有限公司 | A kind of compression type Quick Release slide rail chair mechanism |
| CN108072507A (en) * | 2016-11-10 | 2018-05-25 | 浙江海洋大学 | A kind of hull fatigue strength test fixture |
| CN108078773A (en) * | 2018-02-26 | 2018-05-29 | 博奥生物集团有限公司 | A kind of moxa-moxibustion system |
| CN109131936A (en) * | 2018-09-26 | 2019-01-04 | 吴克龙 | A kind of wing durability degree detection device of plant protection drone |
| CN109297661A (en) * | 2018-09-27 | 2019-02-01 | 盐城同环机电科技有限公司 | A kind of automotive seat endurance test bed |
| CN109459203A (en) * | 2018-12-17 | 2019-03-12 | 浙江永信检测技术有限公司 | A kind of outdoor lie fallow article Dynamic impact fatigue detection device |
| CN110208118A (en) * | 2019-07-05 | 2019-09-06 | 东莞市华泓仪器有限公司 | A kind of furniture shock machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108072507A (en) * | 2016-11-10 | 2018-05-25 | 浙江海洋大学 | A kind of hull fatigue strength test fixture |
| CN107132020A (en) * | 2017-05-24 | 2017-09-05 | 天能电池集团有限公司 | A kind of cell jar apparatus for impact testing |
| CN107323312A (en) * | 2017-07-24 | 2017-11-07 | 江西凯马百路佳客车有限公司 | A kind of compression type Quick Release slide rail chair mechanism |
| CN107323312B (en) * | 2017-07-24 | 2023-03-10 | 江西凯马百路佳客车有限公司 | Pressing type quick-release slide rail seat mechanism |
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| CN109131936A (en) * | 2018-09-26 | 2019-01-04 | 吴克龙 | A kind of wing durability degree detection device of plant protection drone |
| CN109297661A (en) * | 2018-09-27 | 2019-02-01 | 盐城同环机电科技有限公司 | A kind of automotive seat endurance test bed |
| CN109459203A (en) * | 2018-12-17 | 2019-03-12 | 浙江永信检测技术有限公司 | A kind of outdoor lie fallow article Dynamic impact fatigue detection device |
| CN110208118A (en) * | 2019-07-05 | 2019-09-06 | 东莞市华泓仪器有限公司 | A kind of furniture shock machine |
| CN110208118B (en) * | 2019-07-05 | 2024-02-13 | 东莞市华泓仪器有限公司 | Furniture impact testing machine |
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