CN101430254A - Fatigue testing machine for bicycle front fork - Google Patents
Fatigue testing machine for bicycle front fork Download PDFInfo
- Publication number
- CN101430254A CN101430254A CNA200810234327XA CN200810234327A CN101430254A CN 101430254 A CN101430254 A CN 101430254A CN A200810234327X A CNA200810234327X A CN A200810234327XA CN 200810234327 A CN200810234327 A CN 200810234327A CN 101430254 A CN101430254 A CN 101430254A
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- cylinder
- front fork
- testing machine
- mount pad
- support
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- 238000009661 fatigue test Methods 0.000 title claims abstract description 14
- 238000006073 displacement reaction Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 17
- 238000001514 detection method Methods 0.000 abstract description 7
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a fatigue testing machine for a bicycle front fork. The testing machine is characterized by comprising a machine body, cylinder mounting bases, cylinders, displacement transducers, force transducers, connecting rods, a pseudo front shaft, a clamp, a mounting base and a support; the support is arranged on the machine body, two cylinder mounting bases are arranged on one side of the support, the cylinders are movably connected with the cylinder mounting bases respectively, the top ends of piston rods are connected with the connecting rods respectively, the top ends of the two connecting rods are arranged on the pseudo front shaft, and the piston rods of the cylinders are respectively provided with the displacement transducers and the force transducers; and the mounting base is arranged on the machine body, and the clamp is fixed on the mounting base. The testing machine has simple structure and convenient test, and can realize the accurate fatigue strength detection of the bicycle front fork. The testing machine can also realize multi-directional detection, automatic control, analysis and loading, which ensures good quality of produced fittings and guarantees the personal safety of bicycle riders.
Description
Technical field
The present invention relates to a kind of bicycle accessories pick-up unit, specifically relate to a kind of fatigue testing machine for bicycle front fork, belong to the pick-up unit technical field.
Background technology
Bicycle is because of its environmental protection, convenient and swift, lower-price characteristic, and is very popular.Especially in populous China, bicycle popularizing very.From child to old man, basically all can be by bike.
In the time of by bike, the bicyclist is sitting on the cushion, and both hands walker handle is trampled foot-operatedly with both feet, utilize crank to drive sprocket rotation, rotates by the chain drive trailing wheel, reaches the purpose that moves ahead.On cities and towns, backroad, relatively jolt in some highway section, and the general assembly (TW) of bicyclist and bicycle is bigger again, and therefore, bicycle can relatively jolt.Jolting is delivered to handlebar through wheel, front fork, is delivered to handlebar and cushion through trailing wheel and vehicle frame simultaneously, when the bicyclist is felt under the weather, also parts such as front fork is produced shock and vibration, easily makes parts impaired.And the stress of front fork is comparatively complicated, and is changeable, and power vertical, horizontal, level has; The front fork that has now simultaneously adopts shock-proof front-fork assembly, the back is installed generally becomes 20 ° of angles with ground, and therefore the power that is subjected to also tilts.For the quality of the parts that guarantee to dispatch from the factory good, before dispatching from the factory, need front fork is detected, but there is not a kind of pick-up unit can carry out the quality testing of front fork at present, general also can only be to judge according to workman's experience, perhaps through visual detection, the omission accident taking place easily, cause to exist the front fork of quality problems to dispatch from the factory, brings potential safety hazard to the bicyclist.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of automatic control that can pass through computing machine, fatigue testing machine for bicycle front fork to the fatigue strength of bicycle front fork accurately detects can detect the front fork application of force from different directions.
For achieving the above object, the present invention is achieved by the following technical solutions:
A kind of fatigue testing machine for bicycle front fork, it is characterized in that comprising that body 1, cylinder mount pad 11, cylinder 3, displacement transducer 4, force transducer 5, connecting rod 6, vacation show front axle 7, anchor clamps 9, mount pad 10 and support 2, support 2 is installed on the body 13, side at support 2 is installed two cylinder mount pads 11, on cylinder mount pad 11, flexibly connect cylinder 3 respectively, the piston rod top of cylinder 3 connects connecting rod 6, the top of two connecting rods 6 is contained in a vacation and shows on the front axle 7, also is respectively equipped with displacement transducer 4 and force transducer 5 on the piston rod of cylinder 3; On body 1, also be provided with mount pad 10, on mount pad 10, be fixed with anchor clamps 9.
Aforesaid fatigue testing machine for bicycle front fork is characterized in that having chute on described body 1, in the bottom of mount pad 10 processing porose, seal in bolt in the hole, the head of described bolt matches usefulness nut fixed mounting 10 with chute on the body 1.
Aforesaid fatigue testing machine for bicycle front fork is characterized in that having chute on support 2, processes porosely on two cylinder mount pads 11 respectively, seals in bolt in the hole, and the head of described bolt cooperates with chute on the support 2, with the fixing cylinder mount pad 11 of nut.
Aforesaid fatigue testing machine for bicycle front fork is characterized in that being respectively equipped with solenoid valve on the air feed gas circuit of two cylinders 3, and described solenoid valve, displacement transducer 4, force transducer 5 link to each other with outer computer by signal wire.
The invention has the beneficial effects as follows: the present invention is simple in structure, and convenient test can realize the accurate detection to the fatigue strength of bicycle front fork, and can realize the reinforcing of different directions, automatically control, analyze and load, the quality of the accessory that guaranteed to dispatch from the factory is good, has guaranteed bicyclist's personal safety.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is done concrete being described below.
Fig. 1 is a structural representation of the present invention.As shown in the figure, fatigue testing machine for bicycle front fork of the present invention, comprise body 1, cylinder 3, cylinder mount pad 11, displacement transducer 4, force transducer 5, connecting rod 6, front axle 7 is shown in vacation, anchor clamps 9, mount pad 10 and support 2, support 2 is installed on the body 1, on support 2, have chute, difference machining hole on two cylinder mount pads 11, the head of bolt is matched with chute on the support 2, threaded portion passes the hole on the cylinder mount pad 11, use bolt, nut is cylinder mount pad 11 fixedly, make that the upper-lower position of cylinder mount pad 11 is adjustable, can use the front fork that is applicable to various models, and can realize the reinforcing of all directions.
Flexibly connect cylinder 3 respectively on two cylinder mount pads 11, the top of 6, two connecting rods 6 of piston rod top connection connecting rod of cylinder 3 is contained in a vacation jointly and shows on the front axle 7.On the piston rod of cylinder 13, be provided with displacement transducer 4 and force transducer 5.
Also be provided with mount pad 10 on body 1, offer chute on the body 1, match with chute with the head of bolt, the bottom processing of mount pad 10 is porose, and the threaded portion of bolt passes from the hole, and is with nuts and bolt that mount pad 10 is fixing.Like this, mount pad can move left and right also be fixed on body 1, can realize the front fork of different length is detected.On mount pad 10, be fixed with anchor clamps 9.
On the air feed gas circuit of cylinder 11, solenoid valve is set, solenoid valve, displacement transducer 12, force transducer 10 are linked to each other with outer computer by signal wire, the signal of being gathered is passed to outer computer, and by the action of outer computer control electromagnetic valve, and dynamically flex one's muscle, the real-time curve of frequency etc.
During detection, difference according to the front fork test specimen of testing 8, front axle 7 and cylinder 3 are shown in anchor clamps 9, the vacation selecting to be fit to, front fork test specimen 8 is fixed in the anchor clamps 9, and regulate position, the left and right sides, and make the installation site of front fork test specimen 8 be in suitable position, regulate the position of two cylinder mount pads 11 respectively, thereby regulate the position of cylinder 11, vacation is shown that front axle 7 is installed in the front fork place of front fork test specimen 8.
Test parameter is imported in the outer computer, controlled by outer computer.Force transducer 5 offers outer computer with the stressed electric signal that is converted to, the precision height, and linearity can be up to ± 0.03%.Outer computer carries out the action of control electromagnetic valve according to the signal of force transducer 5 feedbacks, makes two cylinder 3 alternating movements, front fork test specimen 8 is carried out dynamic similation load, and simulates its stressing conditions and vibrational state.Through behind certain number of times, outer computer sends system's halt instruction.Unclamp all anchor clamps, take off front fork test specimen 8, check its damage situations.In detection, adopt the power closed loop, if test specimen destroys or the arrival of specimen test number of times in the test process midway, board can also keep test result by auto stop.
In order to simulate the front fork stress under the truth better, the position adjustments of two cylinders 3 can be become 73 ° of angles.
The present invention can realize control automatically, analysis, printing, storage by outer computer, and is accurate to the detection of bicycle front fork, prevented dispatching from the factory of bad accessory, has market efficiency preferably.
The foregoing description does not limit the present invention in any form, and all technical schemes that mode obtained of taking to be equal to replacement or equivalent transformation all drop in protection scope of the present invention.
Claims (4)
1, fatigue testing machine for bicycle front fork, it is characterized in that comprising that body, cylinder mount pad, cylinder, displacement transducer, force transducer, connecting rod, vacation show front axle, anchor clamps, mount pad and support, support is installed on the body, side at support is installed two cylinder mount pads, on the cylinder mount pad, flexibly connect cylinder respectively, the piston rod top of cylinder connects connecting rod, the top of two connecting rods is contained in a vacation and shows on the front axle, also is respectively equipped with displacement transducer and force transducer on the piston rod of cylinder; On body, also be provided with mount pad, on mount pad, be fixed with anchor clamps.
2, fatigue testing machine for bicycle front fork according to claim 1, it is characterized in that on described body, having chute, porose in the processing of the bottom of mount pad, seal in bolt in the hole, the head of described bolt matches with chute on the body, uses the nut fixed mounting.
3, fatigue testing machine for bicycle front fork according to claim 1, it is characterized in that on support, having chute, process porosely on two cylinder mount pads respectively, seal in bolt in the hole, the head of described bolt cooperates with chute on the support, with the fixing cylinder mount pad of nut.
4, fatigue testing machine for bicycle front fork according to claim 1 is characterized in that being provided with solenoid valve on the air feed gas circuit of described cylinder, and described solenoid valve, displacement transducer, force transducer link to each other with outer computer by signal wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810234327XA CN101430254A (en) | 2008-11-12 | 2008-11-12 | Fatigue testing machine for bicycle front fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810234327XA CN101430254A (en) | 2008-11-12 | 2008-11-12 | Fatigue testing machine for bicycle front fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101430254A true CN101430254A (en) | 2009-05-13 |
Family
ID=40645776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810234327XA Pending CN101430254A (en) | 2008-11-12 | 2008-11-12 | Fatigue testing machine for bicycle front fork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101430254A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712804A (en) * | 2012-09-29 | 2014-04-09 | 天津市自行车研究院 | Bicycle damping front fork vertical fatigue testing machine |
| CN103712805A (en) * | 2012-09-29 | 2014-04-09 | 天津市自行车研究院 | Bicycle damping front fork horizontal fatigue testing machine |
| CN110057525A (en) * | 2019-05-28 | 2019-07-26 | 攀枝花学院 | Frame weaving test fixture |
-
2008
- 2008-11-12 CN CNA200810234327XA patent/CN101430254A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712804A (en) * | 2012-09-29 | 2014-04-09 | 天津市自行车研究院 | Bicycle damping front fork vertical fatigue testing machine |
| CN103712805A (en) * | 2012-09-29 | 2014-04-09 | 天津市自行车研究院 | Bicycle damping front fork horizontal fatigue testing machine |
| CN110057525A (en) * | 2019-05-28 | 2019-07-26 | 攀枝花学院 | Frame weaving test fixture |
| CN110057525B (en) * | 2019-05-28 | 2024-04-26 | 攀枝花学院 | Frame vibration test fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: KUNSHAN INNOVATIVE TESTING TECHNOLOGY CO.,LTD. Free format text: FORMER OWNER: YAO ZECHENG Effective date: 20100506 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20100506 Address after: 215321, No. 558, Zhang Pu Road, Kunshan, Jiangsu Applicant after: Kunshan on Innovation and Technology Co., Ltd. Address before: 215321, No. 558, Zhang Pu Road, Kunshan, Jiangsu Applicant before: Tao Zecheng |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090513 |