CN108507746A - A kind of motor-car skirtboard strength test device - Google Patents
A kind of motor-car skirtboard strength test device Download PDFInfo
- Publication number
- CN108507746A CN108507746A CN201810373787.4A CN201810373787A CN108507746A CN 108507746 A CN108507746 A CN 108507746A CN 201810373787 A CN201810373787 A CN 201810373787A CN 108507746 A CN108507746 A CN 108507746A
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- China
- Prior art keywords
- skirtboard
- motor
- force body
- strength test
- car
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Classifications
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- 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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0033—Weight
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to motor-car structural member intensity detection technical field more particularly to a kind of motor-car skirtboard strength test devices, including hoisting structure, force body and fixing device；Wherein, fixing device is for being fixed skirtboard to be tested, and hoisting structure is for lifting to specified altitude assignment and discharging the force body of fixed weight, and force body is for hitting skirtboard.During entire strength test device works, the hoisting height of hoisting structure and the weight of force body are specifically set according to test requirements document, it moves transformation of energy eventually by force body and realizes and hit, by top-down shock mode, the impact resistance of skirtboard can effectively be tested.
Description
Technical field
The invention belongs to motor-car structural member intensity detection technical fields more particularly to a kind of motor-car skirtboard strength test to fill
It sets.
Background technology
Equipment compartment is the nacelle space for being located at motor-car bottom and being used for place apparatus, and its role is to protect equipment from rain
The collision and interference of the foreign matters such as snow, dust storm, acceleration and aerodynamic loading that train is subject in the process of running etc., which also act on, to be set
In standby nacelle, therefore the reasonable integral structure of equipment compartment and intensity play a crucial role the operational safety of motor-car.
Traditional motor car equipment cabin skirtboard mostly uses greatly sheet metal, by continuously improving for structure and production technology, is using process
Middle intensity has obtained effective guarantee, but with the light-weighted demand for development of train, carbon fibre composite is more and more
It is applied in the structure design of motor-car.
In order to prove that this new diseases disclosure satisfy that the impact resistance requirement of motor-car skirtboard, need to by bump test come
It to be tested, wherein the accuracy of bump test depends on many factors such as experimental rig, rammer and test method,
The method for releasing of especially rammer and rammer plays decisive role to test result.
The designer applies abundant for many years practical experience and professional knowledge based on such product engineering is engaged in, and coordinates
The utilization of reason, is actively subject to research and innovation, to found a kind of motor-car skirtboard strength test device, it is made to have more practicability.
Invention content
Motor-car skirtboard strength test device provided in through the invention can rapidly adapt to a variety of tune for realizing parameter
It is whole, and crash direction is consistent, test result is precisely reliable.
The present invention the technical solution to solve the technical problem is that：
A kind of motor-car skirtboard strength test device, including hoisting structure, force body and fixing device；
Wherein, for skirtboard to be tested to be fixed, the hoisting structure is used for fixed weight the fixing device
The force body is lifted to specified altitude assignment and is discharged, and the force body is for hitting the skirtboard.
Further, the force body include sequentially connected hemispheric shock portion, taper transition part and cylinder
Guide part.
Further, the hoisting structure includes two link blocks, reverse-flighted screw, guide rod and two release devices；
The both ends of the reverse-flighted screw are rotatablely connected by bearing and two link blocks respectively, the guide rod and the reverse-flighted screw
It is arranged in parallel, and its both ends is fixedly connected with two link blocks respectively, two release devices and two on the reverse-flighted screw
Screw is fixedly connected, and the reverse-flighted screw rotates under the drive of motor, to drive the two release device relative synchronizations to lean on
Close or remote from the force body falls between two release devices.
Further, the release device includes longitudinal rod and lateral block；
The longitudinal rod connects the screw and lateral block, wherein the transverse gear being located in two release devices
After block is closed, the joint place of the two is provided with the taper groove body consistent with the transition part coning angle of taper.
Further, the hoisting structure further includes guide pipe, the guide pipe and the guide rod）Connection, inside
It is provided with cylindrical cavity, and is provided with the open end for being put into the force body in the cavity, wherein institute
The diameter for stating cavity is equal to the diameter of the guide part, and the distance between the guiding bottom of the tube and the lateral block top are small
In the thickness of the guide part.
Further, the force body is cement structures.
Further, the fixing device includes four stabilizer blades positioned at the skirtboard four corners, is arranged on the stabilizer blade
There is clamping device, is respectively used to that the quadrangle of the skirtboard is fixed.
Further, the clamping device includes screw rod and fixing nut, and the screw rod fixation is vertically arranged at described
In stabilizer blade top planes, the hole passed through for the screw rod is provided on the skirtboard, wherein the diameter of described hole is less than institute
State the outer diameter of nut.
After using above-mentioned technical proposal, the present invention has advantageous effect below：
In the present invention during entire strength test device works, the hoisting height of hoisting structure and the weight root of force body
It is specifically set according to test requirements document, moves transformation of energy eventually by force body and realize and hit, it, can by top-down shock mode
The impact resistance of skirtboard is effectively tested.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to embodiment or existing skill
Attached drawing is briefly described needed in art description, it should be apparent that, the accompanying drawings in the following description is only the application
Described in some embodiments without creative efforts, may be used also for those of ordinary skill in the art
With obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of motor-car skirtboard strength test device in the present invention；
Fig. 2 is the structural schematic diagram of force body；
Fig. 3 is the vertical view of hoisting structure；
Fig. 4 and Fig. 5 is respectively schematic diagram when force body is fallen at different location；
Reference numeral：Hoisting structure 1, link block 11, reverse-flighted screw 12, guide rod 13, release device 14, longitudinal rod 14a, cross
To block 14b, motor 15, guide pipe 16, cavity 16a, force body 2, shock portion 21, transition part 22, guide part 23, fixing device
3, stabilizer blade 31, skirtboard 4.
Specific implementation mode
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, technical solutions in the embodiments of the present application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The every other embodiment that technical staff is obtained without making creative work should all belong to the application protection
Range.
The embodiment of the present invention is write by the way of progressive.
As shown in figs. 1 and 3, a kind of motor-car skirtboard strength test device, including hoisting structure 1, force body 2 and fixing device
3；Wherein, for skirtboard 4 to be tested to be fixed, hoisting structure 1 is used for the force body 2 of fixed weight fixing device 3
Lifting is to specified altitude assignment and discharges, and force body 2 is for hitting skirtboard 4, as shown in Figure 1.In entire strength test device
During work, the hoisting height of hoisting structure 1 and the weight of force body 2 are specifically set according to test requirements document, eventually by
Force body 2, which moves transformation of energy and realizes, to be hit, and by top-down shock mode, can be carried out to the impact resistance of skirtboard 4 effective
Test.
As the preferred of above-described embodiment, as shown in Fig. 2, force body 2 include sequentially connected hemispheric shock portion 21,
The transition part 22 of taper and the guide part 23 of cylinder.During entire force body 2 falls, the structure of hemisphere and taper
Resistance can be reduced, to which energy acquisition is more accurately converted, while in order to ensure that force body 2 is to the crash direction of skirtboard 4
It is top-down, and the generation without shift phenomenon；The guide part 23 of cylinder is set so that when being discharged to force body 2,
The accuracy of guarantee falling direction that can be as possible；Skirtboard 4 is hit by hemispheroidal shock portion 21, can avoid due to applying
Caused by the area in power body end portion is too small, pressure is excessive the problem of test result misalignment.
As the preferred of above-described embodiment, hoisting structure 1 includes two link blocks 11, reverse-flighted screw 12, guide rod 13 and two
Release device 14；The both ends of reverse-flighted screw 12 are rotatablely connected by bearing and two link blocks 11 respectively, guide rod 13 and two-way spiral shell
Bar 12 is arranged in parallel, and its both ends is fixedly connected with two link blocks 11 respectively, in two release devices 14 and reverse-flighted screw 12
Two screws are fixedly connected, and reverse-flighted screw 12 rotates under the drive of motor 15, to drive two release devices, 14 relative synchronization to lean on
Close or remote from force body 2 falls between two release devices 14.During use, force body 2 is positioned over two release devices
On 14, two release devices 14 are closed, and blocking force body 2 falls, and when entire hoisting structure is lifted to specified altitude assignment, passes through
Motor 15 drives reverse-flighted screw 12 to rotate, so that two release devices 14 are gradually distance from, when separate to more than guide part 23
When diametrical position, force body 2 falls from gap, finally falls on skirtboard 4.
As the preferred of above-described embodiment, release device 14 includes longitudinal rod 14a and lateral block 14b；Longitudinal rod
14a connection screws and lateral block 14b, wherein after being located at the lateral block 14b closures in two release devices 14, the patch of the two
The taper groove body consistent with 22 coning angle of the transition part of taper is provided at conjunction.Pass through longitudinal rod 14a's and lateral block 14b
Setting so that the difficulty of processing of entire release device 14 reduces, and provides more spaces for the placement of force body 2, is convenient for
Operation keeps perpendicular before may make force body 2 to discharge by the setting of tap web groove body during hoisting structure 1 moves up and down
Straight state, to guarantee test precision.
As the preferred of above-described embodiment, as shown in Figures 4 and 5, lifting knot 1 further includes guide pipe 16, guide pipe 16 with lead
It is connected to bar 13, is internally provided with cylindrical cavity 16a, and be provided with for force body 2 to be put into cavity 16a
Open end, wherein the diameter of cavity 16a is equal to the diameter of guide part 23,16 bottom of guide pipe and the transverse direction tops block 14b
Between distance be less than guide part 23 thickness.In order to ensure that force body 2 is more accurate to the force direction of skirtboard 4, setting is oriented to
Pipe 16 is oriented to it, before hoisting structure 1 does not hang height, force body 2 is put into cavity 16a by open end, at this time
Two lateral block 14b are closed, and the bottom of force body 2 cannot be fallen by lateral block 14b top barriers, then by hoisting structure 1
Two transverse direction block 14b are unfolded into gap as procedure described above and fallen for force body 2 by lifting to specified altitude assignment, guide pipe 16
It is smaller the distance between at the top of bottom and lateral block 14b, more enabling to the direction of force body 2 more accurate.
As the preferred of above-described embodiment, force body 2 is cement structures.The force body 2 of cement structures is easy to process, passes through
The mode poured can be obtained, and effectively reduce experimentation cost.
As the preferred of above-described embodiment, fixing device 3 includes four stabilizer blades 31 positioned at 4 four corners of skirtboard, stabilizer blade 31
On be provided with clamping device, be respectively used to that the quadrangle of skirtboard 4 is fixed.For the accuracy of guarantee test, need to skirt
Plate 4 is accurately positioned, and avoids it that play occurs during being knocked and influences test result, wherein for four
It can be fixed by lateral connecting rod between foot 31, realize stability.
As the preferred of above-described embodiment, clamping device includes screw rod and fixing nut, and screw rod fixation is vertically arranged at
In 31 top planes of stabilizer blade, the hole passed through for the screw rod is provided on skirtboard 4, wherein the diameter of hole is less than nut
Outer diameter.When skirtboard 4 is fixed, by four holes on skirtboard 4, four screw rods are each passed through, 4 bottom of skirtboard is logical
It crosses 31 top planes of stabilizer blade to be supported, then screwing four fixing nuts can realize that extruding is fixed to the top of skirtboard 4.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (8)
1. a kind of motor-car skirtboard strength test device, which is characterized in that including hoisting structure（1）, force body（2）And fixing device
（3）；
Wherein, the fixing device（3）For to skirtboard to be tested（4）It is fixed, the hoisting structure（1）For that will consolidate
Determine the force body of weight（2）Lifting is to specified altitude assignment and discharges, the force body（2）For to the skirtboard（4）It carries out
It hits.
2. motor-car skirtboard strength test device according to claim 1, which is characterized in that the force body（2）Including according to
The hemispheric shock portion of secondary connection（21）, taper transition part（22）With the guide part of cylinder（23）.
3. motor-car skirtboard strength test device according to claim 2, which is characterized in that the hoisting structure（1）Including
Two link blocks（11）, reverse-flighted screw（12）, guide rod（13）With two release devices（14）；
The reverse-flighted screw（12）Both ends pass through bearing and two link blocks respectively（11）Rotation connection, the guide rod（13）With
The reverse-flighted screw（12）Be arranged in parallel, and its both ends respectively with two link blocks（11）It is fixedly connected, two release devices
（14）With the reverse-flighted screw（12）On two screws be fixedly connected, the reverse-flighted screw（12）In motor（15）Lower turn of drive
It is dynamic, to drive two release devices（14）Relative synchronization is closer or far from the force body（2）From two release devices
（14）Between fall.
4. motor-car skirtboard strength test device according to claim 3, which is characterized in that the release device（14）Including
Longitudinal rod（14a）With lateral block（14b）；
The longitudinal rod（14a）Connect the screw and lateral block（14b）, wherein it is located at two release devices（14）
On the lateral block（14b）After closure, the joint place of the two is provided with the transition part with taper（22）Coning angle is consistent
Taper groove body.
5. motor-car skirtboard strength test device according to claim 4, which is characterized in that the hoisting structure（1）Also wrap
Include guide pipe（16）, the guide pipe（16）With the guide rod（13）Connection is internally provided with cylindrical cavity
（16a）, and be provided with for by the force body（2）It is put into the cavity（16a）Interior open end, wherein the chamber
Body（16a）Diameter be equal to the guide part（23）Diameter, the guide pipe（16）Bottom and the lateral block（14b）Top
The distance between portion is less than the guide part（23）Thickness.
6. motor-car skirtboard strength test device according to claim 1, which is characterized in that the force body（2）For cement
Structure.
7. motor-car skirtboard strength test device according to claim 1, which is characterized in that the fixing device（3）Including
Positioned at the skirtboard（4）Four stabilizer blades of four corners（31）, the stabilizer blade（31）On be provided with clamping device, be respectively used to institute
State skirtboard（4）Quadrangle be fixed.
8. motor-car skirtboard strength test device according to claim 7, which is characterized in that the clamping device includes screw rod
And fixing nut, the screw rod fixation are vertically arranged at the stabilizer blade（31）In top planes, the skirtboard（4）On be provided with
The hole passed through for the screw rod, wherein the diameter of described hole is less than the outer diameter of the nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810373787.4A CN108507746A (en) | 2018-04-24 | 2018-04-24 | A kind of motor-car skirtboard strength test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810373787.4A CN108507746A (en) | 2018-04-24 | 2018-04-24 | A kind of motor-car skirtboard strength test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108507746A true CN108507746A (en) | 2018-09-07 |
Family
ID=63399082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810373787.4A Pending CN108507746A (en) | 2018-04-24 | 2018-04-24 | A kind of motor-car skirtboard strength test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108507746A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612853A (en) * | 2018-11-26 | 2019-04-12 | 深圳市华星光电技术有限公司 | Compression test device and its test method |
| CN111766137A (en) * | 2020-08-27 | 2020-10-13 | 中车青岛四方机车车辆股份有限公司 | Test tool and test method for train apron board |
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| CN109612853A (en) * | 2018-11-26 | 2019-04-12 | 深圳市华星光电技术有限公司 | Compression test device and its test method |
| CN111766137A (en) * | 2020-08-27 | 2020-10-13 | 中车青岛四方机车车辆股份有限公司 | Test tool and test method for train apron board |
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