CN103575526A - Endurance testing device of hinge of engine hood - Google Patents
Endurance testing device of hinge of engine hood Download PDFInfo
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- CN103575526A CN103575526A CN201310585238.0A CN201310585238A CN103575526A CN 103575526 A CN103575526 A CN 103575526A CN 201310585238 A CN201310585238 A CN 201310585238A CN 103575526 A CN103575526 A CN 103575526A
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Abstract
The invention provides an endurance testing device of a hinge of an engine hood, and belongs to the technical field of automobiles. The endurance testing device of the hinge of the engine hood solves the problems that an existing endurance testing device cannot enable an engine hood to be closed automatically, and cannot simulate the action of closing of the engine hood under a true environment. The endurance testing device of the hinge of the engine hood comprises a supporting rack and a support hinged to the supporting rack, a rope chain which can be connected with the engine hood is connected to the support, a first air cylinder which can push the support to drive the engine hood to be opened is arranged between the support and the supporting rack, the supporting rack is further provided with an assisting structure, and by means of the assisting structure, the engine hood stops when falling off to a certain height and then falls off again. The assisting structure can enable the engine hood to stop when the engine hood falls off to the certain height and to fall off again, and help the engine hood be closed correctly, the closing process of the engine hood is simulated more truly, and test data are more accurate.
Description
Technical field
The invention belongs to automobile technical field, relate to a kind of automobile test device, particularly a kind of durability test apparatus of nacelle cover hinge.
Background technology
In Present Domestic automobile production, the quality of nacelle cover hinge is very important.After engine compartment cover and hinge install on body of a motor car, should be noted that a lot of problems: when opening and closing as hatchcover, hinge self can or can not produce interference, the time has been grown later hinge and can or can not wear and tear, rupture.To these problems, check that most important means are exactly to carry out during fabrication long duration test, hinge generally will be done 100,000 above intensity long duration tests.
As a kind of nacelle cover hinge test unit [CN201220267834.5] of Chinese patent announcement, comprise mounting bracket, mounting bracket connects the cylinder barrel of cylinder, and the piston rod of cylinder is connected with connecting link by chute, and one end and the mounting bracket of connecting link are rotationally connected; Cylinder and connecting link are two, and the symmetrical distribution respectively of cylinder and cylinder, connecting link and connecting link, is connected with drag link between two connecting links, and drag link is provided with opening device, and opening device connects stay cord, and stay cord is used for being fixedly connected with engine bonnet front end.By this test unit, can simulate preferably the use procedure of engine bonnet at ordinary times, operating personnel can observe and judge that the performance of hinge is fine or not after the process by a large amount of unlatchings, closed engine cover cap; And this test unit is simple in structure, practical and convenient, good stability, cheap.Cylinders retract when this device need to be closed at engine bonnet, cover cap loses support and should automatically fall, but because engine compartment cover area is large, and cover cap is also connected with stay cord, in whereabouts, be subject to the effect of tractive force and the air resistance of stay cord, speed is even, cannot make engine bonnet auto-closing, does not reach the action that under Reality simulation environment, engine compartment cover is closed.
Summary of the invention
The object of the invention is to have the problems referred to above for existing technology, proposed a kind of durability test apparatus of hinge that can real simulation engine compartment cover closure.
Object of the present invention can realize by following technical proposal: a kind of durability test apparatus of nacelle cover hinge, comprise support stand and be hinged on the support on support stand, it is characterized in that, on described support, be connected with the rope chain that can be connected with engine compartment cover, between described support and support stand, be provided with and can promote the cylinder one that support drives engine compartment cover to open, on described support stand, be also provided with the supplementary structure that stops and again falling while making engine compartment cover drop to certain altitude.
The front end that rope chain one end is fixed on to engine compartment cover, support is hinged on support stand, can rotate relative to support stand, and cylinder one is made upper and lower stretching motion, promotes support and upwards rotates.Support drives engine compartment cover to swing by rope chain, makes opening action, simulated engine hatchcover opening process.When cylinder one is regained, engine compartment cover and support fall together, but by the rope tractive force of chain and the effect of air resistance, cause its falling speed slower, are difficult to automatically fall and close, cannot real simulation closing process.So this durability test apparatus has been equipped with supplementary structure, supplementary structure is stopped when engine compartment cover drops to certain altitude, then makes rapidly again its whereabouts that affranchises.Because after support and nacelle cover supplementary structure stop, rope chain is no longer in tight state, and the tractive force effect of chain so engine compartment cover is not now restricted, when engine compartment cover falls again, because it has been broken away from tractive force and has fallen fast, until completely closed.Therefore, supplementary structure can help engine compartment cover correctly closed, and the process of simulated engine hatchcover closure, makes test figure more accurate more truly.
In the durability test apparatus of above-mentioned nacelle cover hinge, described supplementary structure comprises cylinder two and is connected in the column of support stand front end, is fixed with for the fixing cylinder block of cylinder two on described column.Column need be located at the front end of engine compartment cover, and cylinder two is made horizontal stretching motion, while stretching out, the engine compartment cover that drops to certain altitude can be blocked, and stops it to continue to fall, and then cylinder two is retracted rapidly, and engine compartment cover falls again automatically.
As another kind of scheme, in the durability test apparatus of above-mentioned nacelle cover hinge, described supplementary structure comprises that one end is hinged on the other end on support stand and is hinged on the air spring on support.Air spring is a kind ofly can play support, buffering, braking, highly regulate and the industrial accessory of the function such as angular adjustment.It consists of following several parts: pressure cylinder, piston rod, piston, seal guide sleeve, filling material (inert gas or gas-oil mixture), the outer control element of control element and cylinder and joint in cylinder.When engine compartment cover is opened, air spring is not worked, but piston rod stretches out along with the acting force of cylinder one, when engine compartment cover drops to certain altitude, open air spring, in the pressure cylinder of air spring, fill filling material with, make piston rod supporting engines hatchcover weight and make to stop that it falls, rapidly to air spring exhaust, engine compartment cover loses the support of piston rod and falls fast afterwards.
In the durability test apparatus of above-mentioned nacelle cover hinge, height when described cylinder two is horizontally disposed with and height is horizontal with support equates.The angle of closing completely due to engine compartment cover is negative angle, so can it be stopped its interception by cylinder two after engine compartment cover turns to horizontal level.
In the durability test apparatus of above-mentioned nacelle cover hinge, described support comprises that two are all hinged on support stand and connecting link parallel to each other, between two described connecting links, is connected with drag link.Two connecting links be arranged in parallel, make whole support more steady in rotation process, can not tilt.
In the durability test apparatus of above-mentioned nacelle cover hinge, between described drag link and connecting link, be connected with stiffener one.Stiffener one, for improving the strength of joint between drag link and connecting link, can not be out of shape whole support.
In the durability test apparatus of above-mentioned nacelle cover hinge, described drag link is provided with Connection Block, and described rope chain ties up on Connection Block.The Connection Block of drag link is corresponding with the snap close position of front end on engine compartment cover, by rope chain, both is connected, and support and engine compartment cover are synchronized with the movement.
In the durability test apparatus of above-mentioned nacelle cover hinge, described support stand comprises spill base and perpendicular to the spill bearing of spill base, between described spill base and spill bearing, is connected with stiffener two.Stiffener two, for improving the strength of joint between spill base and spill bearing, makes two can keep vertical relation.
In the durability test apparatus of above-mentioned nacelle cover hinge, one end of described cylinder one is hinged on stiffener two, and the other end is hinged on connecting link.When the piston rod of cylinder one stretches out, support is backed down, support can be rotated around support stand.
In the durability test apparatus of above-mentioned nacelle cover hinge, on described connecting link, line spread has several pin joints for being connected with cylinder one.According to the difference of engine compartment cover Lift, the articulated position of adjustable cylinder one and connecting link, position is different, and the rising height of whole support is also different, makes this device be suitable for the engine compartment cover testing requirements of multiple different automobiles, improves the applicability of this device.
In the durability test apparatus of above-mentioned nacelle cover hinge, described cylinder one and cylinder two are all connected with PLC.Utilize start-up time and the duration of PLC control cylinder one and cylinder two, PLC control cylinder one starts, and drives support and engine compartment cover to rise, and turns to the rear PLC control cylinder one in top and closes.Engine compartment cover loses support and falls, and after arrival certain altitude, PLC control cylinder two starts.The push rod of cylinder two stretches out, and intercepts engine compartment cover, and PLC controls again push rod and draws back rapidly afterwards, and engine compartment cover falls closure automatically.
Compared with prior art, this durability test apparatus utilizes the simulated engine hatchcover open closed actions such as cylinder one, support, rope chain, realizes the long duration test of engine compartment cover hinge strength.Owing to thering are a plurality of pin joints on connecting link, can be applicable to various motorcar engine hatchcovers and open height; There is the engine compartment cover that supplementary structure interception is fallen, make rope chain on support in relaxed state, engine compartment cover is not had to draw, make to fall behind unfettered under engine compartment cover and can reach closed, meet testing requirements, meet hinge actual working state.
Accompanying drawing explanation
Fig. 1 is the kill engine structural representation of hatchcover of the durability test apparatus of the nacelle cover hinge of embodiment mono-.
Fig. 2 is the structural representation that the durability test apparatus of the nacelle cover hinge of embodiment mono-is opened engine compartment cover.
Fig. 3 is the structural representation that the durability test apparatus of the nacelle cover hinge of embodiment bis-is opened engine compartment cover.
In figure, 1, support stand; 1a, spill base; 1b, spill bearing; 2, support; 2a, connecting link; 2b, drag link; 3, rope chain; 4, cylinder one; 5, cylinder two; 6, stiffener one; 7, Connection Block; 8, stiffener two; 9, column; 10, cylinder block; 11, pin joint; 12, air spring.
Embodiment
Be below specific embodiments of the invention by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
Embodiment mono-
As shown in Figure 1, the durability test apparatus of this nacelle of durability test apparatus cover hinge of this nacelle cover hinge is mainly used in automobile experiment chamber, engine compartment cover is connected with car front end by hinge, for the unlatching closed action of engine compartment cover, tests the durable of hinge.It comprises support stand 1 and is hinged on the support 2 on support stand 1, and on support 2, be connected with the rope chain 3 that can be connected with engine compartment cover, support stand 1 and support 2 all can adopt aluminium section bar to make.Between support 2 and support stand 1, be provided with and can promote the cylinder 1 that support 2 drives engine compartment cover to open, on support stand 1, be also provided with the supplementary structure that can reduce engine compartment cover falling speed.
Specifically, as shown in Figure 2, supplementary structure comprises cylinder 25 and is connected in the column 9 of support stand 1 front end, is fixed with for the fixing cylinder block 10 of cylinder 25 on column 9, and cylinder 25 is identical when being horizontally disposed with and being highly horizontal with support 2.Support 2 comprises that two are all hinged on support stand 1 and connecting link 2a parallel to each other, are connected with drag link 2b between two connecting link 2a.Between drag link 2b and connecting link 2a, be connected with stiffener 1.Drag link 2b is provided with Connection Block 7, and rope chain 3 ties up on Connection Block 7.Support stand 1 comprises spill base 1a and perpendicular to the spill bearing 1b of spill base 1a, between spill base 1a and spill bearing 1b, is connected with stiffener 28.One end of cylinder 1 is hinged on stiffener 28, and the other end is hinged on connecting link 2a.
First the chain 3 of restricting pins nacelle cover latch, utilizes PLC that cylinder 1 is ejected, and support 2 can rotate around support stand 1, and engine compartment cover is opened.When cylinder 1 is retracted, engine compartment cover can fall automatically, and during to certain altitude, cylinder 25 stretches out engine compartment cover is blocked.When cylinder 25 is retracted rapidly, engine compartment cover can automatically fall and shut.
In order to improve degree of accuracy, cylinder 1, cylinder 25 are connected with PLC, by being set, carrys out PLC unlatching and the shut-in time of adjusting cylinders 1, cylinder 25.
Embodiment bis-
As shown in Figure 3, supplementary structure comprises that one end is hinged on the other end on support stand 1 and is hinged on the air spring 12 on support 2.In order to improve the applicability of this durability test apparatus, increased the adjustment structure of adjustable cylinder one 4 installation sites.
On connecting link 2a, line spread has some pin joints 11 for being connected with cylinder 1 that keep at a certain distance away.According to the difference of engine compartment cover Lift, the articulated position of adjustable cylinder 1 and connecting link 2a, position is different, and the rising height of whole support 2 is also different, make this device be suitable for the engine compartment cover testing requirements of multiple different automobiles, improved the applicability of this device.
Claims (10)
1. the durability test apparatus of a nacelle cover hinge, comprise support stand (1) and be hinged on the support (2) on support stand (1), it is characterized in that, on described support (2), be connected with the rope chain (3) that can be connected with engine compartment cover, between described support (2) and support stand (1), be provided with and can promote the cylinder one (4) that support (2) drives engine compartment cover to open, on described support stand (1), be also provided with the supplementary structure that stops and again falling while making engine compartment cover drop to certain altitude.
2. the durability test apparatus of nacelle cover hinge according to claim 1, it is characterized in that, described supplementary structure comprises cylinder two (5) and is connected in the column (9) of support stand (1) front end, is fixed with for the fixing cylinder block (10) of cylinder two (5) on described column (9).
3. the durability test apparatus of nacelle cover hinge according to claim 1, is characterized in that, described supplementary structure comprises that one end is hinged on the upper other end of support stand (1) and is hinged on the air spring (12) on support (2).
4. the durability test apparatus of nacelle cover hinge according to claim 2, is characterized in that, height when described cylinder two (5) is horizontally disposed with and height is horizontal with support (2) equates.
5. according to the durability test apparatus of the nacelle cover hinge described in claim 1 or 2 or 4, it is characterized in that, described support (2) comprises that two are all hinged on support stand (1) above and connecting link (2a) parallel to each other, are connected with drag link (2b) between described two connecting links (2a).
6. the durability test apparatus of nacelle cover hinge according to claim 5, it is characterized in that, between described drag link (2b) and connecting link (2a), be connected with stiffener one (6), described drag link (2b) is provided with Connection Block (7), and described rope chain (3) ties up on Connection Block (7).
7. the durability test apparatus of nacelle cover hinge according to claim 6, it is characterized in that, described support stand (1) comprises spill base (1a) and perpendicular to the spill bearing (1b) of spill base (1a), between described spill base (1a) and spill bearing (1b), is connected with stiffener two (8).
8. the durability test apparatus of nacelle cover hinge according to claim 7, is characterized in that, it is upper that one end of described cylinder one (4) is hinged on stiffener two (8), and the other end is hinged on connecting link (2a).
9. the durability test apparatus of nacelle cover hinge according to claim 8, is characterized in that, the upper line spread of described connecting link (2a) has several pin joints (11) for being connected with cylinder one (4).
10. the durability test apparatus of nacelle cover hinge according to claim 9, is characterized in that, described cylinder one (4) and cylinder two (5) are all connected with PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310585238.0A CN103575526B (en) | 2013-11-19 | 2013-11-19 | A kind of durability test apparatus of enging cabin cover hinge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310585238.0A CN103575526B (en) | 2013-11-19 | 2013-11-19 | A kind of durability test apparatus of enging cabin cover hinge |
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| CN103575526A true CN103575526A (en) | 2014-02-12 |
| CN103575526B CN103575526B (en) | 2016-11-02 |
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Cited By (6)
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| CN107687942A (en) * | 2015-08-29 | 2018-02-13 | 赵楠 | Crisper end cap latches the method for testing of strength tester |
| CN109317316A (en) * | 2018-10-08 | 2019-02-12 | 长沙湘智离心机仪器有限公司 | A kind of automatic capping mechanism and the centrifuge with the automatic capping mechanism |
| CN109855854A (en) * | 2019-03-13 | 2019-06-07 | 第一拖拉机股份有限公司 | A kind of tractor hood folding reliability test |
| CN111855224A (en) * | 2019-04-22 | 2020-10-30 | 长春工业大学 | Lifting type oil tank cap fatigue test stand |
| CN112834199A (en) * | 2021-03-09 | 2021-05-25 | 上汽通用五菱汽车股份有限公司 | Pneumatic regulation automobile engine hood endurance test device |
| CN113984410A (en) * | 2021-10-29 | 2022-01-28 | 襄阳达安汽车检测中心有限公司 | Durability test system for opening and closing front cover and rear cover of automobile |
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| CN202693277U (en) * | 2012-06-08 | 2013-01-23 | 浙江吉利汽车研究院有限公司杭州分公司 | Engine cover hinge test device |
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Patent Citations (5)
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| US20100107749A1 (en) * | 2008-11-04 | 2010-05-06 | Gm Global Technology Operations, Inc. | Environmental Enclosure For Vehicle Property Testing |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687942A (en) * | 2015-08-29 | 2018-02-13 | 赵楠 | Crisper end cap latches the method for testing of strength tester |
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| CN109317316A (en) * | 2018-10-08 | 2019-02-12 | 长沙湘智离心机仪器有限公司 | A kind of automatic capping mechanism and the centrifuge with the automatic capping mechanism |
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| CN109855854B (en) * | 2019-03-13 | 2024-03-26 | 第一拖拉机股份有限公司 | Tractor hood opening and closing reliability test device |
| CN111855224A (en) * | 2019-04-22 | 2020-10-30 | 长春工业大学 | Lifting type oil tank cap fatigue test stand |
| CN111855224B (en) * | 2019-04-22 | 2024-06-11 | 长春工业大学 | Lifting type fuel tank cap fatigue test stand |
| CN112834199A (en) * | 2021-03-09 | 2021-05-25 | 上汽通用五菱汽车股份有限公司 | Pneumatic regulation automobile engine hood endurance test device |
| CN113984410A (en) * | 2021-10-29 | 2022-01-28 | 襄阳达安汽车检测中心有限公司 | Durability test system for opening and closing front cover and rear cover of automobile |
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| CN103575526B (en) | 2016-11-02 |
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