CN108020429B - Common passenger car body-in-white torsional rigidity test loading device - Google Patents
Common passenger car body-in-white torsional rigidity test loading device Download PDFInfo
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- CN108020429B CN108020429B CN201711210033.9A CN201711210033A CN108020429B CN 108020429 B CN108020429 B CN 108020429B CN 201711210033 A CN201711210033 A CN 201711210033A CN 108020429 B CN108020429 B CN 108020429B
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- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 239000000725 suspension Substances 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims description 6
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a common passenger car body-in-white torsional rigidity testing and loading device which comprises a test platform, a rotary T-shaped beam, a front suspension restraint clamp, a rear suspension restraint clamp, an extension bracket, an upper hinge connecting seat, a force sensor, a loader and a base, wherein the extension bracket, the upper hinge connecting seat, the force sensor, the loader and the base are sequentially connected from top to bottom, the extension bracket is fixedly arranged at one end of a horizontal beam of the rotary T-shaped beam, the transverse horizontal distance L between the fixed point of the upper hinge connecting seat and the extension bracket and the rotary shaft of the rotary T-shaped beam is 1000mm, the upper end and the lower end of the force sensor are connected through spherical hinges, the loader can realize stable increase or decrease of space size in the vertical direction, and accordingly the common passenger car body-in-white torsional clockwise or anticlockwise torsional rotation of the rotary T-shaped beam is driven. The device is suitable for common passenger car body in white and similar vehicle types, and has the advantages of higher control precision, simplicity, convenience in loading and accurate moment.
Description
Technical Field
The invention belongs to the technical field of vehicle testing equipment, and particularly relates to a loading device used for testing torsional rigidity of a white body of a passenger car.
Background
Currently, force sensors of common passenger car body-in-white torsional rigidity test loading devices are typically arranged on front suspension restraint fixtures. During loading, the moment values to be loaded are converted into corresponding force values before the test starts. The measurement of the moment arm required by conversion often influences the experimental result due to deviation of people and instruments. Meanwhile, torque is transmitted to the white car body through the front suspension restraint clamps, absolute symmetry cannot be guaranteed when the left and right front suspension restraint clamps are installed, the torque is controlled through force sensors arranged on the front suspension restraint clamps, other loads are added besides the required torque, and the accuracy of experimental results is affected. In addition, under the clamping condition, the requirement on the force sensor is small in installation size, and the load range is larger than 10000N, so that safety is ensured.
Disclosure of Invention
The invention aims to provide a device for testing and loading the torsional rigidity of a white car body of a common passenger car, which is suitable for the common passenger car and similar car types, has higher control precision and simpler and more convenient control, can reduce the influence of a clamp on a test result, has convenient loading of the torque of the white car body, has accurate moment, can continuously test and forward and backward test, and shortens the time for testing the torsional rigidity of the white car body.
The technical scheme adopted by the invention is as follows: the utility model provides a common passenger car body in white torsional rigidity test loading device, includes test platform to and install the rotatory T-shaped beam on test platform, two front suspension restraint anchor clamps are installed on the horizontal beam of rotatory T-shaped beam at intervals about, and two rear suspension restraint anchor clamps are installed on test platform at intervals about, its characterized in that: still include from the top down continuous extension support in proper order, go up hinge connection seat, force transducer, loader and base, extension support sets firmly in the horizontal beam one end of rotatory T-shaped beam, and upward hinge connection seat is 1000mm with the fixed point of extension support apart from the horizontal distance L of the rotation axis of rotatory T-shaped beam, the connection at the upper and lower both ends of force transducer is the spherical hinge to possess the power value and show the function, the loader can realize space dimension's stable increase or shrink in the vertical direction to drive ordinary passenger car body in white and twist reverse clockwise or anticlockwise around the rotation axis of rotatory T-shaped beam.
In the above solution, a preferred manner of the loader is: the loader comprises a lower hinge connecting seat, an upper force arm, a pull rod and a lower force arm which are sequentially connected from top to bottom, wherein the two upper force arms and the two lower force arms are arranged between the lower hinge connecting seat and the base and form a telescopic diamond, the lower end of the upper force arm positioned on the left side is hinged with the upper end of the lower force arm positioned on the left side on the same nut pin, the lower end of the upper force arm positioned on the right side is hinged with the upper end of the lower force arm positioned on the right side on another nut pin, and the two nut pins are installed on the left end and the right end of the pull rod in different screwing directions.
Further, two the upper arm of force is articulated on lower hinge connecting seat through the pin joint that controls the interval setting, and two lower arm of force are articulated on the base through the pin joint that controls the interval setting.
Another preferred way of the loader is: the loader adopts a screw nut mechanism to realize stable increase or decrease of the space dimension in the vertical direction.
The beneficial effects of the invention are as follows:
(1) The transverse horizontal distance between the upper hinge connecting seat and the rotary T-shaped beam rotary shaft is kept 1000mm, the force value display of the force sensor can be simply and conveniently carried out, and the common torque value for testing the torsional rigidity of the white body of the common passenger car can be accurately applied: 1000Nm, 2000Nm, 3000Nm, 4000Nm, etc., that is, only the force values of the force sensor need to be focused to be displayed as 1000N, 2000N, 3000N, 4000N, etc., fewer conversion links are needed, and the loading is more accurate.
(2) The loading device can realize stable increase or decrease of space dimension in the vertical direction, so that the torsion rigidity test of the white body of the common passenger car can be clockwise torsion or anticlockwise torsion, and the progress in the test can be fast or slow along with the rhythm of a manipulator.
(3) The clamping of the white car body on the test bed is realized by the side arrangement of the force sensor, the position is fixed, and the torque loading during the torsion rigidity test of the whole common car body is not influenced by the left and right front suspension restraint clamps on the white car body any more, so that the equipment precision is improved.
(4) The clamping of the white car body on the test bed does not directly act on the force sensor, and meanwhile, the requirement of the torsion rigidity test of the whole common passenger car body on the installation size and the load range of the force sensor is greatly reduced due to the side arrangement of the force sensor.
(5) In order to ensure the implementation of loading, in the range of equipment precision requirement, spherical hinges are adopted for the upper and lower connecting joints of the force sensor, so that the equipment can be suitable for torsion loading in a larger range.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic diagram of the installation of a rotating T-beam with a loader.
Fig. 3 is a front view of the loader of fig. 1 after installation with a base.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
referring to fig. 1-3, a common device for testing and loading torsional rigidity of a body-in-white of a passenger car mainly comprises a rotary T-shaped beam 1, an extension bracket 2, an upper hinge connecting seat 3, a lower hinge connecting seat 4, an upper force arm 5, a pull rod 6, a lower force arm 7, a base 8, a force sensor 9, a test platform 10, a front suspension restraint clamp 12 and a rear suspension restraint clamp 13. Wherein, lower hinge connection seat 4, upper arm of force 5, pull rod 6, lower arm of force 7 link to each other in proper order from the top down constitutes the loader. The extension bracket 2, the upper hinge connecting seat 3, the force sensor 9, the loader and the base 8 are sequentially connected from top to bottom, and the base 8 is used for being fixed on the test platform 10 and bearing the function of stable loading.
The rotary T-shaped beam 1 is mounted on the test platform 10, two front suspension restraint clamps 12 are mounted on the horizontal beam of the rotary T-shaped beam 1 at left and right intervals, and two rear suspension restraint clamps 13 are mounted on the test platform 10 at left and right intervals. The body in white is clamped on the rotary T-shaped beam 1 through a front suspension restraint clamp 12, is clamped on a test platform 10 through a rear suspension restraint clamp 13, and is subjected to torsional rigidity test through the loading device.
The rotary T-shaped beam 1 consists of a horizontal beam and a vertical beam, wherein the middle part of the horizontal beam is hinged on the vertical beam, the horizontal beam can rotate around a hinge point, and the lower end of the vertical beam is fixed on the test platform 10. Two front suspension restraint fixture mounting points of the white body are arranged on the rotary T-shaped beam 1 and are used for mounting and fixing the left and right front suspension restraint fixtures 12 of the white body.
The extension bracket 2 is fixedly arranged at one end of the horizontal beam of the rotary T-shaped beam 1 to form an extension part of the rotary T-shaped beam 1 and is used for installing the hinge connecting seat 3. The rotary T-shaped beam 1 and the extension bracket 2 are connected into a whole through bolts and bear the function of a force arm used for testing and loading the torsional rigidity of the white car body.
The extension bracket 2 is provided with a through hole for installing the upper hinge connecting seat 3, and the upper hinge connecting seat 3 and the rotating shaft of the rotary T-shaped beam 1 have a special spatial position relationship, namely the transverse horizontal distance L between the fixed point of the upper hinge connecting seat 3 and the extension bracket 2 and the rotating shaft of the rotary T-shaped beam 1 is 1000mm; in other words, the center of the through hole in the extension bracket 2 is located at a horizontal distance of 1000mm from the rotation axis of the rotary T-beam 1 in the transverse direction, and the operation is simplified.
The two upper force arms 5 and the two lower force arms 7 are arranged between the lower hinge connecting seat 4 and the base 8 and are enclosed into a telescopic diamond. The lower end of the upper arm 5 on the left is hinged with the upper end of the lower arm 7 on the left on the same nut pin 11, and the lower end of the upper arm 5 on the right is hinged with the upper end of the lower arm 7 on the right on the other nut pin 11. The two nut pins 11 are arranged on the left end and the right end of the pull rod 6 in different screwing directions, for example, the nut pin 11 on the left side adopts left-handed threads, the nut pin 11 on the right side adopts right-handed threads, and correspondingly, the two ends of the pull rod 6 are provided with external threads matched with the corresponding nut pins 11. Of course, the left-hand nut pin 11 may be a right-hand thread, and the right-hand nut pin 11 may be a left-hand thread. The loading device can realize stable increase or decrease of the space dimension in the vertical direction by adopting the positive and negative rotation threads at the two ends of the pull rod 6. When the torsion loading is carried out in the conventional test of the torsional rigidity of the white car body of the passenger car, the pull rod 6 is rotated to pull the upper force arm 5 and the lower force arm 7, so that the space size of the loading device in the vertical direction is changed, the rotation of the rotary T-shaped beam 1 is realized, and the purpose of torsion loading is achieved.
The upper end and the lower end of the force sensor 9 are connected by spherical hinges, namely the force sensor 9 is connected with the upper hinge connecting seat 3, and the force sensor 9 is connected with the lower hinge connecting seat 4 by spherical hinges. The force sensor 9 is arranged beside the white car body and has a force value display function, and torque applied by torsion can be simply controlled by a force value display device of the force sensor 9.
Preferably, the two upper arms 5 are hinged on the lower hinge connection seat 4 through hinge points arranged at left and right intervals, and the two lower arms 7 are hinged on the base 8 through hinge points arranged at left and right intervals.
The loader can realize stable increase or decrease of the space dimension in the vertical direction, so that the common passenger car body in white is driven to twist clockwise or anticlockwise around the rotation shaft of the rotary T-shaped beam 1. The structural form of the loader is not limited to the above one, and a screw-nut mechanism can be adopted to realize stable increase or decrease of the space dimension in the vertical direction, and similar structures also fall within the protection scope of the invention.
Before the test starts, the loading device needs to be adjusted to be placed in a working position, namely the pull rod 6 is rotated, and the clamping of the white car body is adjusted, so that the white car body is horizontally restrained. At the beginning of the test, the force sensor 9 force value display function is turned on. Then, according to the experimental requirement, the pull rod 6 is rotated, the upper force arm 5 and the lower force arm 7 are pulled, the space size of the loading device in the vertical direction is changed, the rotation of the rotary T-shaped beam 1 is realized, clockwise or anticlockwise torsion loading is carried out on the white car body, and the force value display reaches the target value and stops. When the torsional rigidity test of the white car body is not needed, only the horizontal constraint of the white car body is needed to be maintained. The loading device can be used for testing the bending rigidity of the white automobile body.
Claims (3)
1. The utility model provides a common passenger car body in white torsional rigidity test loading device, includes test platform (10) to and install rotatory T-shaped beam (1) on test platform (10), interval installation is about two front suspension restraint anchor clamps (12) on the horizontal beam of rotatory T-shaped beam (1), and interval installation is about two rear suspension restraint anchor clamps (13) on test platform (10), its characterized in that: the device comprises a rotary T-shaped beam (1), and is characterized by further comprising an extension bracket (2), an upper hinge connecting seat (3), a force sensor (9), a loader and a base (8) which are sequentially connected from top to bottom, wherein the extension bracket (2) is fixedly arranged at one end of a horizontal beam of the rotary T-shaped beam (1), the transverse horizontal distance L between the fixed point of the upper hinge connecting seat (3) and the fixed point of the extension bracket (2) and the rotary shaft of the rotary T-shaped beam (1) is 1000mm, the upper end and the lower end of the force sensor (9) are connected through spherical hinges, the force sensor has a force value display function, and the loader can realize stable increase or decrease of space size in the vertical direction, so that a common passenger car body can be driven to twist clockwise or twist anticlockwise around the rotary shaft of the rotary T-shaped beam (1); the loader comprises a lower hinge connecting seat (4), an upper force arm (5), a pull rod (6) and a lower force arm (7) which are sequentially connected from top to bottom, wherein the two upper force arms (5) and the two lower force arms (7) are arranged between the lower hinge connecting seat (4) and a base (8) and form a telescopic diamond, the lower end of the upper force arm (5) positioned on the left side and the upper end of the lower force arm (7) positioned on the left side are hinged on the same nut pin (11), the lower end of the upper force arm (5) positioned on the right side and the upper end of the lower force arm (7) positioned on the right side are hinged on another nut pin (11), and the left end and the right end of the pull rod (6) are installed by adopting different rotation directions.
2. The test loading device for torsional rigidity of a body in white of an ordinary passenger vehicle according to claim 1, wherein: the two upper force arms (5) are hinged on the lower hinge connecting seat (4) through hinge points arranged at left and right intervals, and the two lower force arms (7) are hinged on the base (8) through hinge points arranged at left and right intervals.
3. The test loading device for torsional rigidity of a body in white of an ordinary passenger vehicle according to claim 1, wherein: the loader adopts a screw nut mechanism to realize stable increase or decrease of the space dimension in the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711210033.9A CN108020429B (en) | 2017-11-28 | 2017-11-28 | Common passenger car body-in-white torsional rigidity test loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711210033.9A CN108020429B (en) | 2017-11-28 | 2017-11-28 | Common passenger car body-in-white torsional rigidity test loading device |
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| CN108020429A CN108020429A (en) | 2018-05-11 |
| CN108020429B true CN108020429B (en) | 2024-02-09 |
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| CN201711210033.9A Active CN108020429B (en) | 2017-11-28 | 2017-11-28 | Common passenger car body-in-white torsional rigidity test loading device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111999017B (en) * | 2019-05-07 | 2022-03-29 | 东风汽车集团有限公司 | Vehicle body rigidity test system and method |
| CN112665868A (en) * | 2019-10-16 | 2021-04-16 | 王宏福 | Front suspension installation body, rear suspension installation body, platform body, automobile timing platform and mule car |
| CN112525548B (en) * | 2020-11-25 | 2022-06-21 | 东风柳州汽车有限公司 | Fixture tool of white vehicle body static rigidity test bench |
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| CN108020429A (en) | 2018-05-11 |
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