CN211122268U - Pendulum crushing energy-absorbing test experiment platform - Google Patents
Pendulum crushing energy-absorbing test experiment platform Download PDFInfo
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- CN211122268U CN211122268U CN201921658069.8U CN201921658069U CN211122268U CN 211122268 U CN211122268 U CN 211122268U CN 201921658069 U CN201921658069 U CN 201921658069U CN 211122268 U CN211122268 U CN 211122268U
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Abstract
The utility model provides a pendulum crushion energy-absorbing test experiment platform, belongs to metal material and spare part capability test equipment field for pendulum crushion energy-absorbing test. The technical scheme is as follows: the platform base comprises base and flat board, the base is the steel frame, the base is fixed subaerial by rag bolt, dull and stereotyped vertical fixation is in one side of base, dull and stereotyped face is relative with the pendulum bob direction, fixed clamping device's rear end is connected with the flat board, fixed clamping device's anterior centre gripping is tested the device, sensing testing arrangement places between fixed clamping device and dull and stereotyped face, sensing testing arrangement's front end is relative with being tested the device through fixed clamping device, sensing testing arrangement's rear end top is tight on dull and stereotyped face. The utility model discloses simple structure is compact, convenient to use, can realize cap type roof beam and spare part level conquassation energy-absorbing test on pendulum testing machine, and the test procedure is simple quick, and the test result is accurate reliable to adopt the modularized design, easy to assemble and dismantlement.
Description
Technical Field
The utility model relates to an experiment platform for pendulum crushing energy-absorbing test belongs to metal material and spare part capability test equipment field.
Background
With the development of the automobile industry, the requirement for reducing the quality of the whole automobile is higher and higher, and the light weight technology is favored by production enterprises more and more. The premise of realizing the light weight of the vehicle body is that the collision energy-absorbing characteristic and the safety are unchanged or slightly improved under the condition that the part material is changed or the thickness is reduced and the strength is improved, so that the research on the energy-absorbing characteristic and the collision crushing characteristic of the material is of great significance.
Generally, a common approach for light weight is to optimize the structural design and materials so that the overall vehicle structure has as small a mass and a large rigidity as possible, and at the same time, has a high energy absorption rate in the event of a high-speed collision. Most of load-bearing beams of the whole vehicle are hat-shaped thin-walled beams, so the conventional method at present adopts the hat-shaped beams made of high-strength steel materials to evaluate the energy absorption characteristics, researches the deformation characteristics and the energy absorption characteristics of the hat-shaped beam structure under the impact load so as to guide the engineering safety design, and simultaneously uses the optimized lightweight materials to prepare parts to research the energy absorption characteristics. The experimental device adopted conventionally is a drop hammer tester or a movable collision trolley, but the pendulum impact tester is more common to general scientific research institutes. Therefore, the pendulum impact testing machine further expands the functions of the pendulum impact testing machine, and has important practical significance for experimental research on the evaluation of energy absorption characteristics of cap-shaped beams and parts.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a pendulum conquassation energy-absorbing test experiment platform is provided, this kind of experiment platform can realize cap type roof beam and spare part level conquassation energy-absorbing test on the pendulum testing machine, and the test procedure is simple quick, and the test result is accurate reliable to easy to assemble and dismantlement.
The technical scheme for solving the technical problems is as follows:
The utility model provides a pendulum crushing energy-absorbing test experiment platform, it includes the platform base, sensing testing arrangement, fixed clamping device, the platform base comprises base and flat board, the base is the steel frame, the base is fixed subaerial by rag bolt, dull and stereotyped vertical fixation is in one side of base, dull and stereotyped face is relative with the pendulum direction, fixed clamping device's rear end is connected with the flat board, fixed clamping device's anterior centre gripping is tested the device, sensing testing arrangement places between fixed clamping device and dull and stereotyped face, sensing testing arrangement's front end is relative with being tested the device through fixed clamping device, sensing testing arrangement's rear end top is tight on dull and stereotyped face.
According to the pendulum crushing energy-absorbing test experiment platform, the plate surface of the flat plate of the platform base is provided with the plurality of transverse T-shaped grooves with T-shaped sections, the plurality of T-shaped grooves are arranged in parallel from top to bottom, and the fixed clamping device and the sensing test device are connected with the flat plate through the T-shaped grooves.
The pendulum crushing energy-absorbing test experiment platform comprises a fixed clamping device, a support plate, a lower fixing plate, a guide fixing plate, a compression plate, compression bolts, positioning screws and locking nuts, wherein the support plate is arranged in front of a flat plate of a platform base in parallel, four corners of the support plate are respectively provided with vertical slotted holes, rear ends of the four positioning screws are respectively provided with screw caps which are embedded in T-shaped grooves of the flat plate, front ends of the four positioning screws respectively penetrate through the four slotted holes of the support plate, a rod body of the positioning screw is in sliding fit with the slotted holes of the support plate, the locking nuts are screwed at the front ends of the positioning screws, the locking nuts are tightly pressed at the front of the support plate, the lower fixing plate and the guide fixing plate are respectively and horizontally welded at the lower part and the upper part of the surface of the support plate, the guide fixing plate is provided with guide screw holes in the vertical direction, the compression bolts are screwed in the guide screw, the hold-down bolt tightly pushes the hold-down plate and one side of the tested device, and the front end of the tested device is in close contact with the plate surface of the support plate.
Above-mentioned hammer crushing energy-absorbing test experiment platform, sensing testing arrangement comprises force cell sensor, sensor sleeve pipe, sensor fixing base and rubber gasket, and force cell sensor is the cylinder, and force cell sensor places in sensor sleeve pipe, and force cell sensor's front end is located sensor sleeve pipe outer end, and the sensor fixing base is the T type structure of compriseing bottom plate and connecting rod, and the T type groove on sensor fixing base and the dull and stereotyped face of platform base is sliding fit and is connected, and the connecting rod upper end of sensor fixing base stretches out T type groove and sensor sleeve pipe's bottom surface fixed connection, places the rubber gasket between the dull and stereotyped face of sensor sleeve pipe bottom surface and platform base.
The utility model has the advantages that:
The flat plate surface of the platform base of the utility model is provided with a plurality of T-shaped grooves which are arranged in parallel from top to bottom, and the positions of the fixed clamping device and the sensing test device which are fixed on the flat plate surface can be adjusted; the fixed clamping unit can fix the tested devices with different sizes and specifications by adjusting the compression bolts of the compression plates; the supporting plate of the fixed clamping device can slide along the positioning screw rod, so that the stress of the tested device can be completely transmitted to the sensing testing device through the fixed clamping device, and the testing accuracy is ensured.
The utility model has the advantages of simple structure is compact, convenient to use, safe and reliable, low in manufacturing cost, can realize cap type roof beam and spare part level conquassation energy-absorbing test on pendulum testing machine, the test procedure is simple quick, and the test result is accurate reliable to adopt the modularized design, easy to assemble and dismantlement have important actual meaning to the material energy-absorbing characteristic evaluation experimental study of carrying on cap type roof beam and spare part level.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a platform base;
FIG. 3 is a schematic view of the structure of the fixed clamp;
FIG. 4 is a schematic structural diagram of a sensing test apparatus;
FIG. 5 is a schematic illustration of a hat beam crush test;
Fig. 6 is a schematic view of a front impact beam crush test.
The figures are labeled as follows: the device comprises a base 1, a flat plate 2, a T-shaped groove 3, a supporting plate 4, a slotted hole 5, a lower fixing plate 6, a guide fixing plate 7, a pressing plate 8, a pressing bolt 9, a positioning screw rod 10, a screw cap 11, a locking nut 12, a force measuring sensor 13, a sensor sleeve 14, a sensor fixing seat 15, a rubber gasket 16, a cap-shaped beam 17 and a front anti-collision beam assembly 18.
Detailed Description
The utility model discloses constitute by platform base, sensing testing arrangement, fixed clamping device triplex.
Fig. 1 and 2 show that the platform base is composed of a base 1 and a flat plate 2. The base 1 is a steel frame, and the base 1 is fixed on the ground by foundation bolts. Dull and stereotyped 2 vertical fixation is in one side of base 1, and the face of dull and stereotyped 2 is relative with the pendulum orientation, is used for installing sensing test device and fixed clamping device on the dull and stereotyped 2.
Fig. 2 shows that a plurality of transverse T-shaped grooves 3 with T-shaped cross sections are formed on the surface of a flat plate 2 of the platform base, the plurality of T-shaped grooves 3 are arranged in parallel from top to bottom, the interval between every two adjacent T-shaped grooves is 50mm, and the fixing clamping device and the sensing testing device are connected with the flat plate 2 through the T-shaped grooves 3. The fixed clamping device and the sensing test device can be adjusted and fixed on the surface of the flat plate 2 through the T-shaped groove 3, so that the positions of the sensing test device and the fixed clamping device can be adjusted dynamically, and the cap-shaped beam or part crushing performance test with different structural sizes can be realized.
Fig. 1 and 3 show that the rear end of the fixed clamping device is connected with the flat plate 2 of the platform base, and the front part of the fixed clamping device clamps the tested device. The fixing and clamping device consists of a supporting plate 4, a lower fixing plate 6, a guide fixing plate 7, a pressure plate 8, a pressure bolt 9, a positioning screw rod 10 and a locking nut 12.
The supporting plate 4 is arranged in front of the flat plate 2 in parallel, and four corners of the supporting plate 4 are respectively provided with a vertical slotted hole 5 which can be used for adjusting the vertical position of the fixed clamping device up and down. Screw caps 11 at the rear ends of the four positioning screws 10 are embedded in the T-shaped grooves 3 of the flat plate 2, the front ends of the four positioning screws 10 respectively penetrate through the four slotted holes 5 of the supporting plate 4, the rod bodies of the positioning screws 10 are in sliding fit with the slotted holes 5 of the supporting plate 4, locking nuts 12 are screwed at the front ends of the positioning screws 10, and the locking nuts 12 are tightly pressed in front of the supporting plate 4. By adopting the structure, the positioning screw rod 10 only plays a role in supporting and limiting the forward movement of the support plate 4, the pressure of the tested device on the support plate 4 can not be born by the positioning screw rod 10, the bottom surface of the support plate 4 is contacted with the sensing test device, the support plate 4 can slide backwards along the positioning screw rod 10, the stress of the tested device can be completely transmitted to the sensing test device through the support plate 4, and the test accuracy is ensured.
Fig. 1 and 4 show that the sensing test device is placed between the fixing and clamping device and the surface of the flat plate 2, the front end of the sensing test device is opposite to the tested device through the fixing and clamping device, and the rear end of the sensing test device is tightly propped against the surface of the flat plate 2. The sensing test device consists of a load cell 13, a sensor sleeve 14, a sensor fixing seat 15 and a rubber gasket 16.
The load cell 13 is a cylinder, the load cell 13 is placed in the sensor sleeve 14, the front end of the load cell 13 is positioned at the outer end of the sensor sleeve 14, and the front end of the load cell 13 is in contact with the bottom surface of the support plate 4 of the fixed clamping device and receives the pressure transmitted by the support plate 4.
The embodiment of the utility model is as follows:
Fig. 5 shows that example 1 of the present invention is a cap beam collapse test.
Step 1: install the platform base to pendulum hammer impact side of pendulum hammer impact testing machine to it is fixed to rag bolt. The installation position is convenient to observe, and the requirement of the high-speed camera on photographing space can be met.
Step 2: the cap-shaped beam 17 of the tested device is fixed by a fixed clamping single device, firstly, the plane part of the cap-shaped beam 17 is tightly attached to the lower fixing plate 6 of the fixed clamping device, and the cap-shaped beam 17 is fixed by the pressing plate 8 through rotating the pressing bolt 9.
And step 3: according to the pendulum impact point position, a sensing test device is installed, firstly, the load cell 13 is ensured to be located under the cap-shaped beam 17, then the sensor fixing seat 15 is installed in the T-shaped groove 3 of the flat plate 2, and the rubber gasket 16 is placed in a gap between the bottom surface of the sensor sleeve 14 and the plate surface of the flat plate 2.
And 4, step 4: after the fixed clamping device is centered with the sensing test device, a locking nut 12 at the front end of a positioning screw 10 of the fixed clamping device is locked, so that the bottom surface of a supporting plate 4 of the fixed clamping device is tightly attached to the front end surface of a force sensor 13 of the sensing test device.
And 5: after the inspection work is ready, a proper pendulum bob is selected and the angle of the pendulum bob is adjusted, pendulum bob impact measurement is carried out, test data are collected, and the data are analyzed.
Fig. 6 shows that, embodiment 2 of the present invention is a front impact beam assembly crushing experiment.
Step 1: install the platform base to pendulum hammer impact side of pendulum hammer impact testing machine to it is fixed to rag bolt. The installation position is convenient to observe, and the requirement of the high-speed camera on photographing space can be met.
Step 2: two sets of sensing test devices and fixed clamping devices are selected to respectively fix the energy absorption boxes of the anti-collision beam assembly 18.
And step 3: fixing the anti-collision beam assembly 18 of the tested device by using a fixing and clamping device, firstly, tightly attaching the plane part of the energy absorption box of the anti-collision beam assembly 18 to the lower fixing plate 6 of the fixing and clamping device, fixing the anti-collision beam assembly 18 by using a pressing plate 8 by rotating a pressing bolt 9, and fixing the energy absorption box of the anti-collision beam assembly 18 by using another set of fixing and clamping device in the same step.
And 4, step 4: a sensing test device is installed according to the impact point position of a pendulum bob, firstly, a force sensor 13 is ensured to be right below an energy absorption box of an anti-collision beam assembly 18, then, the sensing test device is installed in a T-shaped groove 3 of a flat plate 2, a rubber gasket 16 is placed in a gap between the bottom surface of a sensor sleeve 14 and the surface of the flat plate 2, and another set of sensing test device is installed and centered by adopting the same steps.
And 5: after the fixed clamping device is centered with the sensing test device, a locking nut 12 at the front end of a positioning screw 10 of the fixed clamping device is locked, so that the bottom surface of a supporting plate 4 of the fixed clamping device is tightly attached to the front end surface of a force sensor 13 of the sensing test device.
Step 6: after the inspection work is ready, a proper pendulum bob is selected and the angle of the pendulum bob is adjusted, pendulum bob impact measurement is carried out, test data are collected, and the data are analyzed.
The utility model discloses an embodiment as follows:
The base 1 is a steel frame, the length is 1030mm, the width is 300mm, and the height is 916 mm;
The length of the flat plate 2 is 1200mm, and the width is 600 mm;
The interval of a plurality of T-shaped grooves 3 of the flat plate 2 is 50mm, and the width of the lower bottom of each T-shaped groove is 40 mm;
The length of the supporting plate 4 is 300mm, and the width is 250 mm;
The length of the lower fixing plate 6 is 200mm, and the width is 80 mm;
The length of the guide fixing plate 7 is 200mm, and the width is 80 mm;
The length of the pressing plate 8 is 200mm, and the width is 80 mm;
The diameter of the compression bolt 9 is 20mm, and the length of the compression bolt is 128 mm;
The diameter of the positioning screw rod 10 is 15mm, and the length of the positioning screw rod is 90 mm;
The sensor sleeve 14 has a diameter of 80mm and a length of 35 mm.
Claims (4)
1. The utility model provides a pendulum crushing energy-absorbing test experiment platform which characterized in that: it includes the platform base, the sensing testing arrangement, fixed clamping device, the platform base comprises base (1) and flat board (2), base (1) is the steel frame, base (1) is fixed subaerial by rag bolt, flat board (2) vertical fixation is in one side of base (1), the face and the pendulum bob direction of flat board (2) are relative, fixed clamping device's rear end is connected with flat board (2), fixed clamping device's anterior centre gripping is tested the device, the sensing testing arrangement is placed between the face of fixed clamping device and flat board (2), the front end of sensing testing arrangement is relative with being tested the device through fixed clamping device, the rear end top of sensing testing arrangement is tight on the face of flat board (2).
2. A pendulum crushing energy-absorbing test experiment platform of claim 1, characterized in that: the platform is characterized in that the surface of the flat plate (2) of the platform base is provided with a plurality of transverse T-shaped grooves (3) with T-shaped sections, the plurality of T-shaped grooves (3) are arranged in parallel from top to bottom, and the fixed clamping device and the sensing test device are connected with the flat plate (2) through the T-shaped grooves (3).
3. A pendulum crushing energy-absorbing test experiment platform of claim 1, characterized in that: the fixed clamping device consists of a supporting plate (4), a lower fixing plate (6), a guide fixing plate (7), a pressure plate (8), a pressure bolt (9), positioning screws (10) and locking nuts (12), wherein the supporting plate (4) is placed in front of a flat plate (2) of a platform base in parallel, four corners of the supporting plate (4) are respectively provided with vertical slotted holes (5), screw caps (11) are arranged at the rear ends of the four positioning screws (10) and embedded in T-shaped grooves (3) of the flat plate (2), the front ends of the four positioning screws (10) respectively penetrate through the four slotted holes (5) of the supporting plate (4), a rod body of the positioning screw (10) is in sliding fit with the slotted holes (5) of the supporting plate (4), the locking nuts (12) are screwed at the front ends of the positioning screws (10), the locking nuts (12) are pressed in front of the supporting plate (4), the lower fixing plate (6) and the guide fixing plate (7) are respectively and horizontally welded on the lower part and the upper, lead and defend the screw that has the vertical direction on the fixed plate (7), hold-down bolt (9) are revolved and are defended in the screw, and hold-down plate (8) are placed to hold-down bolt (9) lower extreme, are placed between hold-down plate (8) and bottom plate (6) by the test device, and hold-down bolt (9) will hold-down plate (8) and be tested device one side top tight, by the front end of test device and the face in close contact with of backup pad (4).
4. A pendulum crushing energy-absorbing test experiment platform of claim 1, characterized in that: the sensing test device is by force cell sensor (13), sensor sleeve pipe (14), sensor fixing base (15) and rubber gasket (16) are constituteed, force cell sensor (13) are the cylinder, force cell sensor (13) are placed in sensor sleeve pipe (14), the front end of force cell sensor (13) is located sensor sleeve pipe (14) outer end, sensor fixing base (15) are the T type structure of compriseing bottom plate and connecting rod, T type groove (3) on dull and stereotyped (2) face of sensor fixing base (15) and platform base are connected for sliding fit, the connecting rod upper end of sensor fixing base (15) stretches out the bottom surface fixed connection of T type groove (3) and sensor sleeve pipe (14), place rubber gasket (16) between dull and stereotyped (2) face of sensor sleeve pipe (14) bottom surface and platform base.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921658069.8U CN211122268U (en) | 2019-09-30 | 2019-09-30 | Pendulum crushing energy-absorbing test experiment platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921658069.8U CN211122268U (en) | 2019-09-30 | 2019-09-30 | Pendulum crushing energy-absorbing test experiment platform |
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| CN211122268U true CN211122268U (en) | 2020-07-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049414A (en) * | 2021-03-09 | 2021-06-29 | 中车青岛四方机车车辆股份有限公司 | High-speed offset impact performance testing device and method for train energy absorption test piece |
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2019
- 2019-09-30 CN CN201921658069.8U patent/CN211122268U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049414A (en) * | 2021-03-09 | 2021-06-29 | 中车青岛四方机车车辆股份有限公司 | High-speed offset impact performance testing device and method for train energy absorption test piece |
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