CN108181073A - A kind of anti-secondary pulse testing stand of automobile steering system - Google Patents
A kind of anti-secondary pulse testing stand of automobile steering system Download PDFInfo
- Publication number
- CN108181073A CN108181073A CN201711396371.6A CN201711396371A CN108181073A CN 108181073 A CN108181073 A CN 108181073A CN 201711396371 A CN201711396371 A CN 201711396371A CN 108181073 A CN108181073 A CN 108181073A
- Authority
- CN
- China
- Prior art keywords
- hammer body
- secondary pulse
- body component
- machine frame
- main machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/0078—Shock-testing of vehicles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of anti-secondary pulse testing stands of automobile steering system, including main machine frame, steering gear sample to be measured is equipped in the lower section of the main machine frame, the hammer body component that can be moved up and down and impact the steering gear sample is equipped with above the steering gear sample, the steering gear sample is equipped with force snesor and displacement sensor, the speed acquisition system of detection hammer body component falling speed is additionally provided in the main machine frame side, the anti-secondary pulse device for placing hammer body component rebound bump steer device sample again is equipped with below the main machine frame, the main machine frame, which is equipped with, controls the hammer body component locking and grabbing for whereabouts to take off hammer device.The anti-secondary pulse testing stand of the automobile steering system, it can measure under similar real vehicle state, automobile steering system by driver when being hit, high speed acquisition and display are carried out to presenting the load in compression process, presenting the data such as shifting that condense, it tests simple and convenient, accuracy is high, has preferable application prospect.
Description
Technical field
The invention belongs to automobile steering system experimental technique fields, prevent more specifically to automobile steering system secondary
Shock table.
Background technology
As Chinese automobile annual output and year sales volume increase year by year, automobile has been general institute of family as a kind of vehicles
It uses, in vehicle in actual use, since vehicle is by the shock (vehicle frontal collision knocks into the back) in travel direction, drives
Personnel can generate an impact force, the steering of shrinkable is to the impact when steering wheel is struck to steering
The Bearing degree (keeping load, feedback contracting distance comprising feedback contracting maximum load, feedback contracting) of power can directly affect driver and be hurt
Degree.Existing to need to carry out bump test or entrucking progress vehicle bump test using body block, complex procedures operation is not
Just, experiment accuracy is low.
Invention content
Present invention aim to address problems of the existing technology, provide a kind of simple and convenient, raising experiment essence
The anti-secondary pulse testing stand of automobile steering system of exactness.
To achieve these goals, the technical solution taken of the present invention is：This automobile steering system provided prevents two
Secondary Shocks testing stand, it is characterised in that：Including main machine frame, it is equipped with steering gear to be measured in the lower section of the main machine frame and tries
Sample is equipped with the hammer body component that can be moved up and down and impact the steering gear sample, the steering gear above the steering gear sample
Sample is equipped with the force snesor of detection impact force and measures impact position variation displacement sensor, in the main machine frame side
It is additionally provided with the speed acquisition system of detection hammer body component falling speed, the force snesor, displacement sensor and speed acquisition system
System signal handles through signal acquisition process device and is transmitted to host computer, is equipped with below the main machine frame and places the rebound of hammer body component
The anti-secondary pulse device of bump steer device sample again, the main machine frame be equipped with control the hammer body component locking and under
What is fallen grabs de- hammer device.
To make above-mentioned technical proposal more detailed and specific, the present invention also provides optimization technique sides further below
Case, to obtain satisfied practical function：
The anti-secondary pulse device includes stopper, and the stopper is moved upwards by electromagnet promotion.
The anti-secondary pulse device is equipped with detection switch, and the detection switch is by sensing the hammer body component rebound position
Inductor triggering start.
The main machine frame includes pedestal and top plate, and support post, institute are equipped in four corners of the pedestal and top plate
The centre position for stating pedestal and top plate is provided through the guiding polished rod of the hammer body component.
Two for being oriented to polished rod and being equipped with spaced and parallel arrangement, the both sides of the hammer body component, which are equipped with, to be corresponded to across described
The pilot hole of polished rod is oriented to, guide copper sleeve is equipped in the pilot hole.
The hammer body component includes hammer body and set on hammer body lower end tup, and the tup is set in the middle part of the hammer body,
The pilot hole, which is set on the hammer body, is located at two side position of tup.
The tup lower end is equipped with and is equipped with rubber impact head.
The hammer body is arranged to make up by the independent hammer body of multiple and different specifications, each independent hammer body with it is described guiding polished rod it
Between be equipped with guide copper sleeve, by positioning pin connection between each independent hammer body.
Clump weight is removably connected on each independent hammer body.
Compared with prior art, the present invention it has the following advantages：A kind of anti-secondary pulse examination of automobile steering system of the present invention
Testing platform can measure under similar real vehicle state, and automobile steering system by driver when being hit, to the load in feedback compression process
Lotus presents the condense data such as shifting progress high speed acquisition and display；Make to need to carry out bump test using body block or entrucking carries out
The complex work of vehicle bump test is quick on experimental rig frame, simplicity carries out, and accuracy is high, before having preferable apply
Scape.
Description of the drawings
The content expressed by the attached drawing of this specification and the label in figure are briefly described below：
Fig. 1 is the anti-secondary pulse test platform structure schematic diagram of automobile steering system of the present invention；
Fig. 2 is the anti-secondary pulse test platform structure schematic diagram of automobile steering system of the present invention；
Fig. 3 is the anti-secondary pulse test platform structure schematic diagram of automobile steering system of the present invention；
Fig. 4 is hammer body component structure diagram.
Fig. 5 is grabs de- hammer apparatus structure schematic diagram.
In figure label for：1st, main machine frame, 2, hammer body component, the 21, first hammer body, the 22, second hammer body, 23, third hammer body,
24th, tup, 25, clump weight, 26, guide copper sleeve, 27, positioning pin, 28, hook, 3, grab de- hammer device, 31, ontology, 32, guide hole,
33rd, the first telescoping cylinder, the 34, second telescoping cylinder, 35, lock-up cylinder, 4, put forward hammer system, 5, anti-secondary pulse device, 6, speed adopts
Collecting system, 7, safety device, 8, image pick-up device, 9, host computer, 10, signal processor, 11, steering gear sample.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to the specific embodiment of the present invention further details of
Explanation.
This anti-secondary pulse testing stand of automobile steering system of the present invention, as shown in Figure 1, 2, 3, including main machine frame 1,
The lower section of main machine frame 1 is equipped with steering gear sample 11 to be measured, and impact can be moved up and down by, which being equipped with above steering gear sample 11, turns
To the hammer body component 2 of device sample 11, steering gear sample 11, which is equipped with the force snesor of detection impact force and measures impact position, to be become
Change displacement sensor, the speed acquisition system of detection hammer body component falling speed, power sensing are additionally provided in 1 side of main machine frame
Device, displacement sensor and speed acquisition system signal handle through signal acquisition process device and are transmitted to host computer.Under main machine frame 1
Side, which is equipped with, places hammer body component 2 and rebounds the anti-secondary pulse device 5 of bump steer device sample 11 again.Main machine frame 1 is equipped with
2 locking of control hammer body component and grabbing for whereabouts take off hammer device 3.
The anti-secondary pulse testing stand of the automobile steering system, can measure under similar real vehicle state, automobile steering system exists
When being hit by driver, high speed acquisition and display are carried out to presenting the load in compression process, presenting the data such as shifting that condense；Make needs
The complex work that bump test or entrucking progress vehicle bump test are carried out using body block is quick on experimental rig frame, simple
Just it carries out.
Anti- secondary pulse device 5 includes stopper, and stopper is moved upwards by electromagnet promotion.Anti- secondary pulse device is set
There is detection switch, detection switch is triggered by the inductor of sensing hammer body component rebound position to be started.
Main machine frame 1 is mainly made of pedestal, support post, guiding polished rod and top plate.As shown in Figure 1, main machine frame 1
Including pedestal and top plate, support post is equipped in four corners of pedestal and top plate, the centre position of pedestal and top plate, which is equipped with, wears
Cross the guiding polished rod of hammer body component 2.Pedestal, top plate are process for 45# steel plates, and bottom plate, which has, facilitates the T-shaped of specimen holder assembling
Slot, in order to which steering gear sample 11 is fixedly mounted；Support post uses four seamless steel pipes, forms four-point supporting, ensures host
The stability of frame 1；Connection between support post and bottom plate and top plate uses flanged joint；Being oriented to polished rod material is
GCr15 and polished surface chromium plating have preferable wearability and smooth guidance quality.
It in the present invention, is oriented to polished rod and is equipped with two of spaced and parallel arrangement, the both sides of hammer body component 2 are equipped with corresponding across leading
To the pilot hole of polished rod, guide copper sleeve 26 is equipped in pilot hole, to enhance its wearability and slickness.
If Fig. 4 hammer bodies component 2 includes hammer body and set on hammer body lower end tup 24, tup 24 is set in the middle part of hammer body, pilot hole
It is located at 24 liang of side positions of tup on hammer body.Impact force application is carried out using system of dropping hammer in the present invention, and in tup portion
Position installation is suitble to thickness and the rubber material impact head of hardness, and 24 lower end of tup is equipped with and is equipped with rubber impact head, to simulate people
Body.
2 top of hammer body component is additionally provided with the hook that lower section is connect with tup 24.Its structure is shown in Fig. 4, and hammer body is using whole
Steel plate warm and hot forging is process, and guide copper sleeve 26 is equipped between each hammer body and guiding polished rod.
For the accuracy of guarantee test, hammer body is arranged to make up by the independent hammer body of multiple and different specifications, each independent hammer
It body and is oriented between polished rod and is equipped with guide copper sleeve, by positioning pin connection between each independent hammer body.On each independent hammer body
Removably it is connected with clump weight 25.
Hammer body component 3 when in use, flexibly can individually select 1 falling impacts steering gear of hammer body examination according to weight needs
Sample 11 present embodiments provides a kind of hammer body by different size in three and forms, including the first hammer body 21, the second hammer body 22 and
Three hammer bodies 23.Can the first hammer body 21 be used alone, the first hammer body 21 and the second hammer body 22 falling impacts sample together also can be selected,
First hammer body 21, the second hammer body 22 and third hammer body 23 falling impacts sample together, the synchronization fallen together to ensure more hammer bodies
Property, positioning pin 27 is fitted between each hammer body.Each hammer body can by way of increasing or reducing clump weight 25 tune
Whole tup quality.
In the present invention, main machine frame 1 is equipped with 2 locking of control hammer body component and grabbing for whereabouts takes off hammer device 3.Grab de- hammer dress
3 are put as self-locking device, in the case of hammer body component 2 connected and fix by the device, form self-locking, ensure to make in gravity
Tup will not occur under and fall phenomenon.
As shown in figure 5, grabbing de- hammer device 3 includes ontology 31, it is provided through being oriented to the guide hole 32 of polished rod on ontology 31,
The side of ontology 31 is equipped with the first telescoping cylinder 33 that can be stretched up and down, and 33 lower end of the first telescoping cylinder is connected in horizontally toward mechanism
The second telescoping cylinder 34 that side is stretched is connected with corresponding limiting in the front end of the second telescoping cylinder 34 and is plugged below hammer body component 2
Limited block.First telescoping cylinder 33 can be corresponded to according to the height of hammer body is retractable to suitable position in order to which the second telescoping cylinder 34 correspondence makes
With.
The middle part for grabbing the ontology 3 of de- hammer device 3 is equipped with lock-up cylinder 35, and lock-up cylinder 35 can be drivingly connected thereunder
Scroll chuck folding and clamping realize the locking to hammer body component to link up with 28 on locking hammer body component 2.Preferably, de- hammer is grabbed
The inductive switch of 28 positions of sensing hook is additionally provided on device 3, lock position is detached from without using in state, such as detecting to link up with,
Then inductive switch is connected, warning device prompting abnormality alarm.
In use, the second telescoping cylinder 34 drives limited block to retract to both sides, hammer body component 2 is detached from, lock-up cylinder 35 starts
Scroll chuck is controlled to unclamp release shackle 28.The release altitude of hammer body component 2 can control to adjust reality by grabbing de- hammer device 3
It is existing.
2 tup 24 of hammer body component fallen is acted on to steering gear sample 11, at this time force snesor, displacement sensor and speed
After the data of degree acquisition system acquisition are simultaneously acquired signal processor 10, force value-displacement of entire impact moment is formd
Curve or force value-rate curve or displacement-rate curve to host computer 9 and are shown.
In the present invention, anti-secondary pulse device 5 is equipped in the lower section of main machine frame, anti-secondary pulse device 5 is to work as hammer body
During 2 falling impacts sample steering gear 11 of component, if hammer body component 2 is bounced by Percussion counter-force, 4 anti-secondary pulse devices 5 are examined at this time
Slowdown monitoring switch is triggered, and anti-secondary pulse device 5 starts, and is pushed by electromagnet and advanced on stopper, the 5 hammer body groups that will decline again
2 stroke of part blocks, to prevent hammer body component 2 from doing secondary pulse work(to 11 surface of steering gear sample, to ensure impact results as one
Secondary falling impacts cause, it is ensured that the accuracy of experiment.
After the completion of primary test, put forward hammer system 4 and the hammer body component 2 fallen be lifted up to certain altitude, can again into
Row experiment.Hammer system 4 is put forward mainly by chain drive hammer body component 2 being driven to move up by promoting motor-driven drive sprockets.
In the present invention, the anti-secondary pulse testing stand of automobile steering system carries out impact force application using system of dropping hammer, and drops hammer
Hoisting depth it is controllable；Shock sensors and displacement measuring device on testpieces are installed, show that steering gear tries on computers
Sample 11 is by impact transients force value and the conversion curve of displacement.When detecting by host is carried in power control cabinet or computer hammer,
Impact, grab the double control of the automation processes such as hammer.There is the high speed run simultaneously with host computer to take the photograph outside testing machine simultaneously
As device 8, automatic captured in real-time can be controlled by computer instruction to the overall process for impacting moment, convenient for testing the analysis of process.
In the present invention, to ensure the safety of experiment process, the security protection for covering in periphery is equipped with below main machine frame 1
Device 7, safety device 7 are the protection network of closing, and the fracture of steering gear sample 11 can be effectively prevent to splash, can also be anti-
It protects in the case that door opens, testing machine self-locking, primary operational is invalid.
A kind of test method of the anti-secondary pulse testing stand of automobile steering system is connected steering gear sample 11 by real vehicle state
Completion is connect, force snesor and displacement sensor are installed on steering gear sample 11；Weight and the impact for setting hammer body component 2 are high
Hammer body component 5 is promoted setting shock height and discharged, makes hammer body component 2 by degree using grabbing de- hammer device 3 and carrying hammer device 4
Freely falling body is struck on steering gear sample 11, and speed acquisition system 6 acquires the falling speed of hammer body component 2, displacement sensor
Change in location situation, the force snesor acquisition impact force load of steering gear sample 11 are acquired, each signal is adopted through signal processor 10
Collection processing after, using signal processor 10 on host computer 9 to force value-displacement curve or force value-rate curve or displacement-speed
Line of writing music is shown.
Start high-speed camera device 8 and image processor while hammer body component 2 falls, acquire the screen and figure of dropping process
Piece is convenient for post analysis application.
Hammer body component 2 starts anti-secondary pulse device 5 while whereabouts.
The process that hammer body component 2 discharges starts the second telescoping cylinder 34 control limited block and retracts, while start lock-up cylinder 35
Scroll chuck unclamps the hook 28 that release is set on hammer body component 2, and hammer body component 2 falls.
A kind of anti-secondary pulse testing stand of automobile steering system of the present invention, can measure under similar real vehicle state, and automobile turns
To system when being hit by driver, high speed acquisition and aobvious is carried out to load, the feedback data such as shifting that condense in feedback compression process
Show；Make to need to carry out bump test using body block or entrucking carries out the complex work of vehicle bump test in experimental rig frame
Upper quick, easy progress, accuracy is high, has preferable application prospect.
The present invention is exemplarily described above in conjunction with attached drawing, but the present invention is not limited to aforesaid way, only
It wants the improvement of the various unsubstantialities of methodology and technical solution progress using the present invention or directly applies to other occasions
, it all falls in protection scope of the present invention.
Claims (9)
1. a kind of anti-secondary pulse testing stand of automobile steering system, it is characterised in that：Including main machine frame, in the main machine frame
Lower section be equipped with steering gear sample to be measured, impact steering gear examination can be moved up and down by being equipped with above the steering gear sample
The hammer body component of sample, the steering gear sample are equipped with the force snesor of detection impact force and measure impact position variation displacement and pass
Sensor, be additionally provided in the main machine frame side detection hammer body component falling speed speed acquisition system, the force snesor,
Displacement sensor and speed acquisition system signal are handled through signal acquisition process device is transmitted to host computer, under the main machine frame
Side is equipped with the anti-secondary pulse device for placing hammer body component rebound bump steer device sample again, and the main machine frame is equipped with control
It makes the hammer body component locking and grabbing for whereabouts takes off hammer device.
2. the anti-secondary pulse testing stand of automobile steering system described in accordance with the claim 1, it is characterised in that：It is described to prevent secondary punching
It hits device and includes stopper, the stopper is moved upwards by electromagnet promotion.
3. the anti-secondary pulse testing stand of automobile steering system described in accordance with the claim 2, it is characterised in that：It is described to prevent secondary punching
Device is hit equipped with detection switch, the detection switch is triggered by the inductor for sensing the hammer body component rebound position to be started.
4. the anti-secondary pulse testing stand of automobile steering system described in accordance with the claim 1, it is characterised in that：The main machine frame
Including pedestal and top plate, the interposition of support post, the pedestal and top plate is equipped in four corners of the pedestal and top plate
Put the guiding polished rod for being provided through the hammer body component.
5. according to the anti-secondary pulse testing stand of automobile steering system described in claim 4, it is characterised in that：The guiding polished rod
Two equipped with spaced and parallel arrangement, the both sides of the hammer body component are equipped with the corresponding pilot hole across the guiding polished rod,
Guide copper sleeve is equipped in the pilot hole.
6. the anti-secondary pulse testing stand of automobile steering system described in accordance with the claim 1, it is characterised in that：The hammer body component
Including hammer body and set on hammer body lower end tup, the tup is set in the middle part of the hammer body, and the pilot hole is set on the hammer
It is located at two side position of tup on body.
7. according to the anti-secondary pulse testing stand of automobile steering system described in claim 6, it is characterised in that：The tup lower end
Equipped with being equipped with rubber impact head.
8. according to the anti-secondary pulse testing stand of automobile steering system described in claim 6 or 7, it is characterised in that：The hammer body
It is arranged to make up by the independent hammer body of multiple and different specifications, guiding copper is equipped between each independent hammer body and the guiding polished rod
It covers, by positioning pin connection between each independent hammer body.
9. according to the anti-secondary pulse testing stand of automobile steering system according to any one of claims 8, it is characterised in that：Each independence
Clump weight is removably connected on hammer body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711396371.6A CN108181073A (en) | 2017-12-21 | 2017-12-21 | A kind of anti-secondary pulse testing stand of automobile steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711396371.6A CN108181073A (en) | 2017-12-21 | 2017-12-21 | A kind of anti-secondary pulse testing stand of automobile steering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108181073A true CN108181073A (en) | 2018-06-19 |
Family
ID=62547010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711396371.6A Pending CN108181073A (en) | 2017-12-21 | 2017-12-21 | A kind of anti-secondary pulse testing stand of automobile steering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108181073A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114354396A (en) * | 2021-12-29 | 2022-04-15 | 上海交通大学 | Dynamic buckling and ultimate strength testing device for large stiffened plate of ship body under impact load |
| CN114739839A (en) * | 2022-06-09 | 2022-07-12 | 深圳市骏鼎达新材料股份有限公司 | Test equipment for impact test and use method thereof |
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| JPH09222379A (en) * | 1996-02-16 | 1997-08-26 | Mitsubishi Electric Corp | Impact test device |
| US20040261494A1 (en) * | 2003-06-24 | 2004-12-30 | Lee Kun Ta | Impact generating device for impact tester |
| CN201107191Y (en) * | 2007-09-20 | 2008-08-27 | 南车长江车辆有限公司 | Buffer stroke drop hammer tester |
| CN203132931U (en) * | 2012-12-28 | 2013-08-14 | 深圳万测试验设备有限公司 | Drop hammer tear impact testing machine |
| CN103969016A (en) * | 2014-04-12 | 2014-08-06 | 北京工业大学 | Drop test table |
| CN204575468U (en) * | 2015-04-12 | 2015-08-19 | 长春机械科学研究院有限公司 | High speed impact compression deformation test machine |
| CN106596026A (en) * | 2016-12-08 | 2017-04-26 | 苏州世力源科技有限公司 | Automobile crumple type steering column impact test device and test method |
| CN206504851U (en) * | 2017-03-02 | 2017-09-19 | 温州市质量技术监督检测院 | Motorcycle passenger helmet goggles strength test assessment system |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09222379A (en) * | 1996-02-16 | 1997-08-26 | Mitsubishi Electric Corp | Impact test device |
| US20040261494A1 (en) * | 2003-06-24 | 2004-12-30 | Lee Kun Ta | Impact generating device for impact tester |
| CN201107191Y (en) * | 2007-09-20 | 2008-08-27 | 南车长江车辆有限公司 | Buffer stroke drop hammer tester |
| CN203132931U (en) * | 2012-12-28 | 2013-08-14 | 深圳万测试验设备有限公司 | Drop hammer tear impact testing machine |
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| CN204575468U (en) * | 2015-04-12 | 2015-08-19 | 长春机械科学研究院有限公司 | High speed impact compression deformation test machine |
| CN106596026A (en) * | 2016-12-08 | 2017-04-26 | 苏州世力源科技有限公司 | Automobile crumple type steering column impact test device and test method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114354396A (en) * | 2021-12-29 | 2022-04-15 | 上海交通大学 | Dynamic buckling and ultimate strength testing device for large stiffened plate of ship body under impact load |
| CN114739839A (en) * | 2022-06-09 | 2022-07-12 | 深圳市骏鼎达新材料股份有限公司 | Test equipment for impact test and use method thereof |
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Application publication date: 20180619 |