CN201225951Y - Dynamic fatigue tester for bicycle saddle pipe - Google Patents
Dynamic fatigue tester for bicycle saddle pipe Download PDFInfo
- Publication number
- CN201225951Y CN201225951Y CNU200820041130XU CN200820041130U CN201225951Y CN 201225951 Y CN201225951 Y CN 201225951Y CN U200820041130X U CNU200820041130X U CN U200820041130XU CN 200820041130 U CN200820041130 U CN 200820041130U CN 201225951 Y CN201225951 Y CN 201225951Y
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- CN
- China
- Prior art keywords
- saddle pipe
- bicycle saddle
- servobcylinder
- fixture
- dynamic fatigue
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- Expired - Fee Related
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Abstract
The utility model relates to a bicycle saddle pipe dynamic fatigue-testing machine, which comprises a machine body, a servo cylinder, and the like, wherein, a bracket is fixed on the machine body; an elevation screw rod is accessed into a top plate of the bracket; a hand wheel is arranged above the top plate and is matched with the elevation screw rod; the lower end of the elevation screw rod is provided with a beam; the beam is provided with two servo cylinders; piston rods of the servo cylinders are downwards connected with a testing clamp and are provided with a displacement sensor and a force sensor; both ends of the beam are provided with a fixing device that is positioned to a bearing post of the bracket; the machine body is provided with a guiding plate, and the guiding plate is provided with a T-shaped sliding groove, and the bottom of the mounted clamp is provided with a guide rail, and the mounted clamp is matched with the guiding plate through the guide rail, and the mounted clamp is provided with an installation hole, and the mounted clamp is fixed to the guiding plate through a bolt and a T-shaped nut. The machine has simple structure and convenient test, and can realize the precise detection of the fatigue value of the bicycle saddle pipe, and can realize the automatic control, analysis and loading, and can ensure the good quality of the ex-factory accessories, and can ensure the safety of the user.
Description
Technical field
The utility model relates to a kind of bicycle accessories pick-up unit, specifically relates to a kind of dynamic fatigue tester for bicycle saddle pipe, belongs 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, both hands walker handle, and the step that tramps with one's feet is stepped on, and utilizes crank to drive sprocket rotation, rotates by the chain drive trailing wheel, reaches the purpose that moves ahead.Below cushion, cushion is fixedlyed connected with vehicle frame by saddle pipe.Saddle pipe is a straight tube, and the upper end is clipped on the cushion, and insert on the vehicle frame lower end, and fixing.Therefore the dynamic fatigue intensity of saddle pipe must meet the requirements, and saddle pipe be oblique cutting on vehicle frame, stressed is not vertical.If the fatigue strength of saddle pipe is not enough, then may occur in the accident of saddle pipe fracture, bending in the process of riding, the bicyclist is thrown suddenly from car, or even overturn, cause personal injury accidents.At present, also there is not to be used for pick-up unit that saddle pipe is accurately detected, to the detection of saddle pipe, also can only be to judge,, the omission accident take place easily perhaps through visual detection according to workman's experience, cause to exist the saddle pipe of quality problems to dispatch from the factory, bring potential safety hazard to the bicyclist.
The utility model content
Be to solve the deficiencies in the prior art, the purpose of this utility model be to provide a kind of can be by the automatic control of computing machine, the dynamic fatigue tester for bicycle saddle pipe that the fatigue strength of bicycle saddle pipe is accurately detected.
For achieving the above object, the utility model is to realize by following technical scheme:
A kind of dynamic fatigue tester for bicycle saddle pipe, it is characterized in that comprising body, sectional fixture, test fixture, force transducer, displacement transducer, servoBcylinder, crossbeam, support, lifting screw and handwheel, described support is the gate-type structure, be fixed on the body, on the top board of support, seal in lifting screw, handwheel is positioned at the top of top board, cooperate with lifting screw, at the lower end of lifting screw fixed cross beam, two servoBcylinders are set respectively on crossbeam, the piston rod of servoBcylinder is downward, and the top connects test fixture, and displacement transducer and force transducer also are housed on the piston rod of servoBcylinder; Also be provided with the bearing column location of stationary installation and support at the two ends of crossbeam; Be fixed with guide plate on body, have T type chute on the guide plate, the bottom of sectional fixture is provided with guide rail, and sectional fixture cooperates with guide plate by guide rail, is provided with mounting hole on sectional fixture, by fixing by bolt and T type nut and guide plate.
Aforesaid dynamic fatigue tester for bicycle saddle pipe is characterized in that on described sectional fixture and test fixture the clamping point of its clamping detection piece and horizontal angle are 73 °.
Aforesaid dynamic fatigue tester for bicycle saddle pipe is characterized in that being provided with ball-joint between the piston rod of described servoBcylinder and test fixture.
Aforesaid dynamic fatigue tester for bicycle saddle pipe is characterized in that being provided with pneumatic servovalve on the air feed gas circuit of described servoBcylinder, and described pneumatic servovalve, displacement transducer, force transducer link to each other with outer computer by signal wire.
The beneficial effects of the utility model are: the utility model is simple in structure, convenient test can realize the accurate detection to the fatigue strength of bicycle saddle pipe, realizes controlling automatically, analyzing and load, the quality of accessory of having 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 utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done concrete being described below.
Fig. 1 is a structural representation of the present utility model.As shown in the figure, dynamic fatigue tester for bicycle saddle pipe of the present utility model, comprise body 13, sectional fixture 9, test fixture 12, force transducer 7, displacement transducer 6, servoBcylinder 4, crossbeam 5, support 3, lifting screw 1 and handwheel 2, support 3 adopts the gate-type structure, be fixed on the body 13, seal in lifting screw 1 on the top board of support 3 downwards, lifting screw 1 cooperates with handwheel 2, and handwheel 2 is positioned at the top of top board.Dried 1 the fixedly connected crossbeam 5 in lower end is expanded in lifting, is provided with stationary installation (not shown) at the two ends of crossbeam 5, and crossbeam 5 is followed lifting screw 1 and moved up and down, and is fixed on by stationary installation on two bearing columns of support 3.
On crossbeam 5, be provided with two servoBcylinders 4, the piston rod of servoBcylinder 4 down, its top is connected the two ends of test fixture 12, and displacement transducer 6 and force transducer 7 also are housed respectively on the piston rod of servoBcylinder 4.The convenience of installing and detecting for saddle pipe is respectively equipped with ball-joint 8 on the top of the piston rod of servoBcylinder 4, and ball-joint 8 is connected with test fixture 12.
Also be provided with guide plate 10 on body 11, have chute on guide plate 10, in the bottom of sectional fixture 9 guide rail is set, sectional fixture 9 is implemented in moving on the guide plate 10 by the cooperation of guide rail, chute.On sectional fixture 9, be provided with mounting hole, after the position adjustments of sectional fixture 9 is good, sectional fixture 9 be fixed on the guide plate 10 with bolt.
On the air feed gas circuit of two servoBcylinders 4, pneumatic servovalve is set, pneumatic servovalve, displacement transducer 6, force transducer 7 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 show real time data.
During detection, unclamp the lock screw of the stationary installation at crossbeam 5 two ends, rotation hand wheel 2 moves to crossbeam 5 position of being convenient to install saddle pipe test specimen 11 by lifting screw 1.Difference according to the saddle pipe test specimen that detects, select suitable sectional fixture 9 and test fixture 12, saddle pipe test specimen 11 is fixed on the sectional fixture 9, mobile sectional fixture 9, make saddle pipe test specimen 11 and test fixture 12 be positioned at same upright position, sectional fixture 9 is fixed on this position.According to the force application location of the saddle pipe of standard-required, move the position of two servoBcylinders 4 and fixing.Rotation hand wheel 2, moving beam 5 is convenient to clamp the position of saddle pipe to test fixture 12, with test fixture 12 11 clampings of saddle pipe test specimen.The screw of locking and fixing device is fixed in this position with crossbeam 5.
Test parameter is imported in the outer computer, controlled by outer computer.Force transducer 7 is converted to electric signal with the power that is subjected to, and offers outer computer, the precision height, and linearity can be up to ± 0.03%.Outer computer is controlled the action of gas pneumatic servovalve according to the signal of force transducer 7 feedbacks, and two servoBcylinders 4 alternately or are simultaneously moved, and saddle pipe test specimen 11 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 saddle pipe test specimen 11, check its damage situations.If test specimen destroys or the arrival of specimen test number of times in test process midway, board can also keep test result by auto stop.
In order to simulate the saddle pipe stress under the truth, sectional fixture 9 becomes 73 ° with bite on the test fixture 12 with horizontal line, make saddle pipe test specimen 11 that the back is installed and keep 73 ° angle with horizontal line, with the same under the actual conditions, has simulated actual conditions truly.
The utility model can be realized control automatically, analysis, printing, storage by outer computer, and is accurate to the detection of bicycle saddle pipe, prevented dispatching from the factory of bad accessory, has market efficiency preferably.
The foregoing description does not limit the utility model in any form, and all technical schemes that mode obtained of taking to be equal to replacement or equivalent transformation all drop in the protection domain of the present utility model.
Claims (4)
1, dynamic fatigue tester for bicycle saddle pipe, it is characterized in that comprising body, sectional fixture, test fixture, force transducer, displacement transducer, servoBcylinder, crossbeam, support, lifting screw and handwheel, described support is the gate-type structure, be fixed on the body, on the top board of support, seal in lifting screw, handwheel is positioned at the top of top board, cooperate with lifting screw, at the lower end of lifting screw fixed cross beam, two servoBcylinders are set respectively on crossbeam, the piston rod of servoBcylinder is downward, and the top connects test fixture, and displacement transducer and force transducer also are housed on the piston rod of servoBcylinder; Also be provided with the bearing column location of stationary installation and support at the two ends of crossbeam; Be fixed with guide plate on body, have T type chute on the guide plate, the bottom of sectional fixture is provided with guide rail, and sectional fixture cooperates with guide plate by guide rail, is provided with mounting hole on sectional fixture, fixes by bolt and T type nut and guide plate.
2, dynamic fatigue tester for bicycle saddle pipe according to claim 1 is characterized in that on described sectional fixture and test fixture the clamping point of its clamping detection piece and horizontal angle are 73 °.
3, dynamic fatigue tester for bicycle saddle pipe according to claim 1 is characterized in that being provided with ball-joint between the piston rod of described servoBcylinder and test fixture.
4, dynamic fatigue tester for bicycle saddle pipe according to claim 1, it is characterized in that being provided with pneumatic servovalve on the air feed gas circuit of described servoBcylinder, described pneumatic servovalve, displacement transducer, force transducer link to each other with outer computer by signal wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820041130XU CN201225951Y (en) | 2008-07-23 | 2008-07-23 | Dynamic fatigue tester for bicycle saddle pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820041130XU CN201225951Y (en) | 2008-07-23 | 2008-07-23 | Dynamic fatigue tester for bicycle saddle pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201225951Y true CN201225951Y (en) | 2009-04-22 |
Family
ID=40598846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820041130XU Expired - Fee Related CN201225951Y (en) | 2008-07-23 | 2008-07-23 | Dynamic fatigue tester for bicycle saddle pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201225951Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109407A (en) * | 2011-03-07 | 2011-06-29 | 济南轻骑摩托车股份有限公司 | Fatigue durability vibrating test stand of motorcycle frame |
| CN103511399A (en) * | 2013-10-11 | 2014-01-15 | 浙江正星健身器有限公司 | Fatigue tester of treadmill oil cylinder |
| CN109540362A (en) * | 2018-11-15 | 2019-03-29 | 桂林福达股份有限公司 | A kind of craft quickly detects maximum separation power method after cap assembly abrasion |
| CN109813603A (en) * | 2019-03-18 | 2019-05-28 | 中华人民共和国邢台海关 | A kind of child's bicycle stabilizer intensity detection testing machine |
| CN109932192A (en) * | 2019-03-29 | 2019-06-25 | 东北大学 | A kind of whole bicycle and individual event fatigue experiment analysis platform and application method |
| CN113267355A (en) * | 2021-05-25 | 2021-08-17 | 太原中车时代轨道工程机械有限公司 | Rail car BTM ground test device and test system |
-
2008
- 2008-07-23 CN CNU200820041130XU patent/CN201225951Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109407A (en) * | 2011-03-07 | 2011-06-29 | 济南轻骑摩托车股份有限公司 | Fatigue durability vibrating test stand of motorcycle frame |
| CN103511399A (en) * | 2013-10-11 | 2014-01-15 | 浙江正星健身器有限公司 | Fatigue tester of treadmill oil cylinder |
| CN103511399B (en) * | 2013-10-11 | 2015-12-23 | 浙江正星健身器有限公司 | A kind of fatigue tester of Treadmills oil cylinder |
| CN109540362A (en) * | 2018-11-15 | 2019-03-29 | 桂林福达股份有限公司 | A kind of craft quickly detects maximum separation power method after cap assembly abrasion |
| CN109813603A (en) * | 2019-03-18 | 2019-05-28 | 中华人民共和国邢台海关 | A kind of child's bicycle stabilizer intensity detection testing machine |
| CN109813603B (en) * | 2019-03-18 | 2024-05-03 | 中华人民共和国邢台海关 | Balance wheel strength detection testing machine for children bicycle |
| CN109932192A (en) * | 2019-03-29 | 2019-06-25 | 东北大学 | A kind of whole bicycle and individual event fatigue experiment analysis platform and application method |
| WO2020199293A1 (en) * | 2019-03-29 | 2020-10-08 | 东北大学 | Whole bicycle and single item fatigue experiment analysis platform and usage method |
| CN113267355A (en) * | 2021-05-25 | 2021-08-17 | 太原中车时代轨道工程机械有限公司 | Rail car BTM ground test device and test system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 Termination date: 20160723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |