CN104865120A - Sheet metal fatigue testing machine for LED radiator - Google Patents
Sheet metal fatigue testing machine for LED radiator Download PDFInfo
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- CN104865120A CN104865120A CN201510293906.1A CN201510293906A CN104865120A CN 104865120 A CN104865120 A CN 104865120A CN 201510293906 A CN201510293906 A CN 201510293906A CN 104865120 A CN104865120 A CN 104865120A
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- rotating disk
- sheet metal
- support portion
- positioning disk
- rotation disc
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Abstract
The invention relates to a sheet metal fatigue testing machine for an LED radiator. The sheet metal fatigue testing machine comprises a driving mechanism, a supporting part, a guiding disc, a rotation disc and force applying members, wherein the supporting part and the guiding disc are connected fixedly; the rotation disc is of a circular structure and is in driving connection with the driving mechanism; an annular limiting part is arranged on the supporting part; the rotation disc is arranged in the limiting part in a rotating manner and is accommodated between the supporting part and the guiding disc; a plurality of guiding holes clockwise and radially arranged around the axis of the rotation disc are formed in the rotation disc; a plurality of sliding chutes radially arranged around the axis of the rotation disc are formed in the rotation disc; each force applying member comprises a pulling bar and a sliding block connected with the pulling bar in a rotating manner; the sliding blocks and the pulling bars are arranged in the guiding holes and the sliding chutes in a sliding manner, respectively. According to the sheet metal fatigue testing machine, the rotation disc is driven to rotate in the limiting part stably by the driving mechanism and further drives the sliding blocks to slide along the guiding holes, so that the pulling bars slide along the sliding chutes, the axial variable loads in multiple directions are applied to the sheet metal, the sheet metal is subjected to balanced force in multiple directions, and the accuracy of the sheet metal fatigue test is improved.
Description
Technical field
The present invention relates to the technical field that the fatigue behaviour of sheet material is tested, particularly relate to a kind of sheet metal fatigue tester for LED radiator for LED radiator.
Background technology
Sheet metal is in axial loading, rotoflector loading and can show fatigue phenomenon under reversing the alternate load effects such as loading.The mechanical performance index that the fatigue properties of sheet metal, intensity, ductility, strain hardening and toughness etc. are important can be analyzed by applying axial alternate load to sheet metal.In engineer applied, fatigue behaviour is one of Main Basis of metal sheeting design Static Strength Design, can reflect the performances such as the antifatigue of sheet metal, fracture.
Traditionally, sheet metal is applied to the device of axial load, balancedly cannot apply multidirectional load to sheet metal.In addition, instability in the process applying axial alternate load, causes the multidirectional load of sheet metal unbalanced and in process of the test, Impact direction cannot be consistent, and stability is not good, cannot reflect the fatigue behaviour index of sheet metal exactly.
Summary of the invention
Based on this, be necessary to provide a kind of sheet metal fatigue tester for LED radiator, to solve the axial alternate load discontinuity equalization of multiple directions that applies sheet metal in prior art and the not good problem of stability.
For a sheet metal fatigue tester for LED radiator, comprising: the rotating disk of driving mechanism, support portion, circular configuration, positioning disk and force-applying piece;
Described support portion is provided with annular limiting section, described dial rotation is arranged in described limiting section, and described positioning disk is fixedly connected with described support portion, to be contained between described support portion and described positioning disk by described rotating disk;
The axle center place of described support portion, described rotating disk and described positioning disk offers through putting hole, through hole and containing hole respectively;
Described rotating disk offers some pilot holes, and some described pilot holes are the arrangement of clockwise emitting shape with the axle center of described rotating disk;
Described positioning disk offers some chutes towards the side of described rotating disk, and some described chutes are emitting shape arrangement with the axle center of described positioning disk;
The slide block that described force-applying piece comprises tie rod and is rotationally connected with described tie rod, described skid is arranged in described pilot hole, and described tie rod slides and is arranged in described chute;
Described driving mechanism drives with described rotating disk and is connected, for driving described slide block to slide along described pilot hole, to make described tie rod along described slide when driving described dial rotation.
In one of them embodiment, the edge of described rotating disk stretches out an ear.
In one of them embodiment, described driving mechanism comprises telescopic cylinder and web member, and described telescopic cylinder is fixedly connected with described support portion by described web member, and telescopic shaft and the described ear of described telescopic cylinder are hinged.
In one of them embodiment, described drives structure also comprises installation portion and is arranged at the proximity switch on described installation portion, and described installation portion is fixedly connected with described web member.
In one of them embodiment, described through hole is circular.
In one of them embodiment, described putting hole is circular.
The above-mentioned sheet metal fatigue tester for LED radiator drives the rotating disk of circular configuration stably to rotate in annular limiting section by driving mechanism, and then band movable slider slides along pilot hole, make tie rod along slide, thus realization applies the axial variable load in multiple directions to the sheet metal be connected with several tie rods, make sheet metal stress equalization in a plurality of directions, improve the accuracy to sheet metal experiment on fatigue properties.
Accompanying drawing explanation
Fig. 1 is the structural representation of the sheet metal fatigue tester for LED radiator of a preferred embodiment of the present invention;
Fig. 2 for shown in Fig. 1 for the explosive view of the sheet metal fatigue tester of LED radiator;
The visual angle figure that Fig. 3 is positioning disk shown in Fig. 1;
Fig. 4 is the structural representation of force-applying piece shown in Fig. 1;
Fig. 5 is the structural drawing of rotating disk shown in Fig. 2, positioning disk and force-applying piece.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Preferred embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present invention more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.
As depicted in figs. 1 and 2, wherein, Fig. 1 be a preferred embodiment of the present invention the structural representation of the sheet metal fatigue tester 10 for LED radiator, Fig. 2 for shown in Fig. 1 for the explosive view of the sheet metal fatigue tester 10 of LED radiator.
Sheet metal fatigue tester 10 for LED radiator comprises: driving mechanism 11, support portion 12, rotating disk 13, positioning disk 14 and force-applying piece 15.
Positioning disk 14 is fixedly connected with support portion 12.Rotating disk 13 rotates and is contained between support portion 12 and positioning disk 14, can be understood as, rotating disk 13 relative to support portion 12 and positioning disk 14 with fixing axis rotation.Because positioning disk 14 is fixedly connected with support portion 12, avoid in the process of rotating at rotating disk 13 and cause positioning disk 14 to rotate, like this, add the stability that the sheet metal fatigue tester 10 for LED radiator works.
The axle center place of support portion 12, rotating disk 13 and positioning disk 14 offers through putting hole 121, through hole 131 and containing hole 141 respectively.Rotating disk 13 offers some pilot holes 132, some pilot holes 132 are the arrangement of clockwise emitting shape with the axle center of rotating disk 13.
In the present embodiment, support portion 12 is arranged round ring boss 122, boss 122 is arranged around putting hole 121.Through hole 131 is circular, and is enclosed within outside boss 122, and rotating disk 13 is rotated around boss 122.Easy understand, in order to ensure stability when rotating disk 13 rotates around boss 122, the diameter of through hole 131 is suitable with the diameter of boss 122, ensures the smoothness that rotating disk 13 rotates.In other embodiments, boss 122 also can be interrupted setting.
Realize rotating disk 13 relative to support portion 12 with fixing axis rotation, be not limited to arrange round ring boss 122 on support portion 12, in other embodiments, such as, support portion 12 offers toroidal cavity around putting hole 121, rotating disk 13 is provided with multiple slide bar towards described toroidal cavity correspondence, or rotating disk 13 is provided with annular projection towards described toroidal cavity correspondence, multiple described slide bar inserts in described toroidal cavity, or annular projection is inserted in described toroidal cavity, rotating disk 13 can be realized equally relative to support portion 12 with fixing axis rotation.And for example, side around through hole 131 and towards support portion 12 on rotating disk 13 offers toroidal cavity, support portion 12 is provided with multiple slide bar towards described toroidal cavity correspondence, or support portion 12 is provided with annular projection towards described toroidal cavity correspondence, multiple described slide bar inserts in described toroidal cavity, or annular projection is inserted in described toroidal cavity, rotating disk 13 can be realized equally relative to support portion 12 with fixing axis rotation.
In the present embodiment, rotating disk 13 is circular configuration, in order to realize the stability that rotating disk 13 rotates on support portion 12 further, support portion 12 is provided with annular limiting section 123, limiting section 123 and boss 122 concentric are arranged, like this, rotating disk 13 just with its axis rotation between boss 122 and limiting section 123, can improve stability when rotating disk 13 rotates.In other embodiments, also the rotating disk 13 of circular configuration can be realized with its axis rotation without the need to arranging boss 122, such as, support portion 12 is provided with annular limiting section 123, rotating disk 13 rotates and is arranged in limiting section 123, rotating disk 13 slides with the inwall of limiting section 123 all the time and conflicts in rotation process, guarantees that rotating disk 13 is with the stability of its axis rotation.
In the present embodiment, support portion 12 is circular configuration, and preferably, putting hole 121 is circular.In other embodiments, support portion 12 also can be square structure, ellipsoidal structure etc.Positioning disk 14 is circular configuration, and preferably, containing hole 141 is circular, also can be regular polygon.In other embodiments, positioning disk 14 also can be square structure, ellipsoidal structure etc.
As shown in Figure 3, its visual angle figure being positioning disk 14 shown in Fig. 1.Positioning disk 14 offers some chutes 142 towards the side of rotating disk 13, and some chutes 142 are emitting shape arrangement with the axle center of positioning disk 14.
Consult Fig. 4 and Fig. 5 in the lump, wherein, Fig. 4 is the structural representation of force-applying piece 15 shown in Fig. 1, and Fig. 5 is rotating disk 13 shown in Fig. 2, the structural drawing of positioning disk 14 and force-applying piece 15.The slide block 152 that force-applying piece 15 comprises tie rod 151 and is rotationally connected with tie rod 151, slide block 152 slides and is arranged in pilot hole 132, and tie rod 151 slides and is arranged in chute 142.Concrete, slide block 152 is rotatably connected on one end of tie rod 151, for the ease of being placed in containing hole 141 by sheet metal, and then is connected with tie rod 151, and the other end of tie rod 151 is stretched in containing hole 141.For the ease of connection metal sheet material, such as, the other end of tie rod 151 arranges crook, crook is arranged towards support portion 12, in actual applications, in advance sheet metal is cut into circle, offers several pulling eyes in the edge equilibrium of circular metal sheet material, like this, penetrate pulling eye by crook and realize removably connecting of tie rod 151 and sheet metal.And for example, the other end of tie rod 151 arranges clamping part, in actual applications, in advance sheet metal is cut into circle, and by the clamping action of clamping part to sheet metal, realization removably connects with sheet metal.
Again consult Fig. 1 and Fig. 2, driving mechanism 11 drives with rotating disk 13 and is connected, realize the band movable slider 152 when driving rotating disk 13 to rotate to slide along pilot hole 132, slide along chute 142 to make tie rod 151, realize several tie rods 151 to shrink and open, due to several tie rod 151 equilibrium arrangements, after being connected with sheet metal, the stable pulling in multiple directions can be carried out to sheet metal, make sheet metal axial load in a plurality of directions balanced, improve the accuracy to sheet metal experiment on fatigue properties.In the present embodiment, the edge of rotating disk 13 stretches out an ear 133, and driving mechanism 11 comprises telescopic cylinder 111 and web member 112, and telescopic cylinder 111 is fixedly connected with support portion 12 by web member, and the telescopic shaft 1111 of telescopic cylinder 111 is hinged with ear 133.In order to coordinate ear 133, the limiting section 123 near the annular of telescopic shaft 1111 offers breach 1231, when avoiding telescopic cylinder 111 to drive ear 133 to rotate, causes the stop to ear 133.
In order to control the amplitude that rotating disk 13 rotates, avoid because of out of control when telescopic cylinder 111 drives rotating disk 13, cause the stretch range of tie rod 151 pairs of sheet metals excessive and tear sheet metal, the proximity switch 114 that drives structure 11 also comprises installation portion 113 and is arranged on installation portion 113, installation portion 113 is fixedly connected with web member 112.Proximity switch 114 is without the need to directly contacting with telescopic shaft 1111, when the link position of telescopic shaft 1111 and ear 133 is near proximity switch 114, and sensed after, proximity switch 114 can produce trigger pip, external control unit outside just can control the telescopic shaft 1111 of telescopic cylinder 111 according to trigger pip, realize effective control that rotating disk 13 is rotated, increase the reliability and stability worked for the sheet metal fatigue tester 10 of LED radiator.And the stable performance of proximity switch 114, frequency response is fast, application life is long, antijamming capability is strong, and there is waterproof, the feature such as shockproof, corrosion-resistant, can be suitable in the rugged surroundings such as many dirt, greasy dirt, expand the range of application of the sheet metal fatigue tester 10 for LED radiator.In order to be controlled by the rotation amplitude of rotating disk 13 in the scope needed, proximity switch 114 and described waist-shaped hole are two, and two proximity switch 114 intervals are arranged, and one_to_one corresponding inserts in two described waist-shaped holes.
Conveniently adjust proximity switch 114 in the position of installation portion 113, installation portion 113 offers waist-shaped hole (figure does not mark), proximity switch 114 inserts in waist-shaped hole.Like this, when needing the amplitude of rotating rotating disk 13 to adjust, proximity switch 114 being moved in waist-shaped hole and is fixed to ad-hoc location.
Again consult Fig. 4 and Fig. 5, change for the ease of counter brace 151, tie rod 151 comprises and pulls bar 1511 and slider bar 1512, slide block 152 and slider bar 1512 are rotationally connected, bar 1511 is pulled to be bolted in the end of the slider bar 1512 away from slide block 152, bar hole 143 is offered in the bottom of positioning disk 14 upper hopper chute 142, pulls bar 1511 to slide along bar hole 143 and arranges.Like this, without the need to spliting rotating disk 13 and positioning disk 14, just can split pulling bar 1511 and slider bar 1512, and taking out via bar hole 143, being convenient to replacing and pulling bar 1511.
In actual applications, preferably, rotating disk 13 and support portion 12 are ferrous materials, in order to alleviate the wearing and tearing of rotating disk 13 and support portion 12, need to reduce the friction factor between rotating disk 13 and support portion 12, in the present embodiment, solid lubricating film material is coated with on support portion 12 with on the surface of contact of rotating disk 13, described solid lubricating film material consists of the following composition: the diameter of 19wt% ~ 32wt% is the cobalt of 28um ~ 71um, the diameter of 13wt% ~ 27wt% is the fluorographite of 30nm ~ 56nm, the sodium fluoride of 8wt% ~ 15wt%, the zirconium dioxide of 25wt% ~ 48wt%, the cementing agent of 10wt% ~ 31wt%.
In described solid lubricating film material, diameter is the cobalt of 28um ~ 71um is magnetic nano-particle, has higher hardness, intensity and anti-wear performance simultaneously, is easily adsorbed onto the surface of contact of metal material in rotating disk 13 with support portion 12 Relative friction process.In the present invention, the content of cobalt is 19wt% ~ 32wt%, is preferably 22wt% ~ 28wt%.The diameter of cobalt is preferably 45um ~ 65um.
Fluorographite is a kind of carbon-graphite functional material that carbon and fluorine at high temperature react generation, because fluorographite is layer structure, and molecular force is between layers more weak, and distance is between layers 2 times of graphite, there is excellent greasy property, and diameter be 30nm ~ 56nm fluorographite friction process in be easily deposited as film at the surface of contact of metal material, metal material surface can be attached to securely, occur rub time difficult drop-off.In the present invention, the content of fluorographite is 13wt% ~ 27wt%, is preferably 19wt% ~ 22wt%.The diameter of fluorographite is preferably 41nm ~ 52nm.
Carrying out repeatedly in axial tension test to sheet metal, rotating disk 13 frequency with rotate counterclockwise switching clockwise relative to support portion 12 is very high, hot environment is formed at surface of contact, the sodium fluoride used as adjuvant is as the best results of adjuvant, and it is better with the cooperative effect of other compositions in described solid lubricating film material, easily form transfer membrane at surface of contact, strengthen the lubricating property of described solid lubricating film material, improve the temperature tolerance of described solid lubricating film material, and the higher protective film of shear resistance can be formed between rotating disk 13 and support portion 12.In the present invention, the content of sodium fluoride is 8wt% ~ 15wt%, is preferably 10wt% ~ 14wt%.
Zirconium dioxide (chemical formula: ZrO2) is the main oxides of zirconium, is white odorless, tasteless crystal, is insoluble in water, hydrochloric acid and dilute sulfuric acid under usual condition.Chemical property torpescence, and the character with high-melting-point, high resistivity, high index of refraction and low thermal coefficient of expansion, make it become important exotic material, ceramic insulating material and ceramic opacifier, band gap is approximately 5eV ~ 7eV.
The application of plasma spraying Zirconia Thermal Barrier Coating in aviation and industrial gas turbine has remarkable progress, the turbine portion for gas turbine in certain limit.Coating due to the solid lubricating film material containing zirconium dioxide can reduce the temperature of air cooling high-temperature component, therefore can improve the permanance of high-temperature component rotating disk 13 and support portion 12 significantly.In the present invention, the content of zirconium dioxide is 25wt% ~ 48wt%, is preferably 31wt% ~ 40wt%.
Cementing agent is the guarantee of cohesive strength between other composition and surface of contact in solid lubricating film material.Cementing agent, except sizing material, also comprises the auxiliary elements such as solvent, hardening agent, toughner, antiseptic, colorant, defoamer.Cementing agent, except the most frequently used animal glue, also comprises synthetic resin, rubber and paint etc.In rotating disk 13 with support portion 12 Relative friction process, cementing agent adds the adsorption strength of the surface of contact of other composition and metal material in solid lubricating film material, improves permanance and the greasy property of solid lubricating film material.
The above-mentioned sheet metal fatigue tester 10 for LED radiator drives the rotating disk 13 of circular configuration stably to rotate in annular limiting section 123 by driving mechanism 11, and then band movable slider 152 slides along pilot hole 132, tie rod 151 is slided along chute 142, thus realization applies the axial variable load in multiple directions to the sheet metal be connected with several tie rods 151, make sheet metal stress equalization in a plurality of directions, improve the accuracy to sheet metal experiment on fatigue properties.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (5)
1. for a sheet metal fatigue tester for LED radiator, it is characterized in that, comprising: driving mechanism, support portion, rotating disk, positioning disk and force-applying piece;
Described support portion is provided with annular limiting section, described dial rotation is arranged in described limiting section, and described positioning disk is fixedly connected with described support portion, to be contained between described support portion and described positioning disk by described rotating disk;
The axle center place of described support portion, described rotating disk and described positioning disk offers through putting hole, through hole and containing hole respectively;
Described rotating disk offers some pilot holes, and some described pilot holes are the arrangement of clockwise emitting shape with the axle center of described rotating disk;
Described positioning disk offers some chutes towards the side of described rotating disk, and some described chutes are emitting shape arrangement with the axle center of described positioning disk;
The slide block that described force-applying piece comprises tie rod and is rotationally connected with described tie rod, described skid is arranged in described pilot hole, and described tie rod slides and is arranged in described chute;
Described driving mechanism drives with described rotating disk and is connected, for driving described slide block to slide along described pilot hole, to make described tie rod along described slide when driving described dial rotation.
2. the multi tension test machine for thin material in LED decorations according to claim 1, it is characterized in that, described support portion is circular configuration.
3. the multi tension test machine for thin material in LED decorations according to claim 1, it is characterized in that, described rotating disk is circular configuration.
4. the multi tension test machine for thin material in LED decorations according to claim 1, it is characterized in that, described positioning disk is circular configuration.
5. the multi tension test machine for thin material in LED decorations according to claim 1, it is characterized in that, described containing hole is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510293906.1A CN104865120B (en) | 2015-06-01 | 2015-06-01 | For the sheet metal fatigue tester of LED radiator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510293906.1A CN104865120B (en) | 2015-06-01 | 2015-06-01 | For the sheet metal fatigue tester of LED radiator |
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| Publication Number | Publication Date |
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| CN104865120A true CN104865120A (en) | 2015-08-26 |
| CN104865120B CN104865120B (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510293906.1A Active CN104865120B (en) | 2015-06-01 | 2015-06-01 | For the sheet metal fatigue tester of LED radiator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108489534A (en) * | 2018-01-31 | 2018-09-04 | 昆山科默精密机械有限公司 | A kind of radiator detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108489534A (en) * | 2018-01-31 | 2018-09-04 | 昆山科默精密机械有限公司 | A kind of radiator detection device |
| CN108489534B (en) * | 2018-01-31 | 2020-05-15 | 昆山科默精密机械有限公司 | Radiator detection device |
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| Publication number | Publication date |
|---|---|
| CN104865120B (en) | 2018-07-06 |
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