CN213902881U - High-speed high-rigidity test bed - Google Patents
High-speed high-rigidity test bed Download PDFInfo
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- CN213902881U CN213902881U CN202022919225.0U CN202022919225U CN213902881U CN 213902881 U CN213902881 U CN 213902881U CN 202022919225 U CN202022919225 U CN 202022919225U CN 213902881 U CN213902881 U CN 213902881U
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Abstract
The utility model provides a high-speed high rigidity test bench, include base, road surface simulation mechanism and with be used for providing power and give road surface simulation mechanism's actuating mechanism, road surface simulation mechanism include mounting bracket, rotary drum, two breadboards, with steadiness piece, main shaft that two breadboards link to each other and install in the lug in the rotary drum outside, road surface simulation mechanism top still are provided with tire control mechanism, tire control mechanism include the mount and set up in the tire positioning device of mount one side, tire positioning device including be used for providing the servo power spare of loading power, with the lifter plate that servo power spare links to each other and install in be used for on the lifter plate with the connecting piece that the rim of tire links to each other, install six component force sensors on the connecting piece. The utility model discloses can accurate location tire position, keep the location rigidity and the simulation road surface rigidity of tire, improve experimental accuracy.
Description
Technical Field
The embodiment of the utility model provides a relate to tire test equipment technical field, especially relate to a high-speed high rigidity test bench.
Background
The mechanical characteristics of the tire are the basis of the analysis and design of the automobile performance, and have important influence on the safety, the operation stability, the smoothness, the NVH performance and other performances of the automobile. The tire mechanical property test bed is one of key test devices for tire property modeling, whole vehicle performance integration, adjustment and development, and is a source of key data of automobile dynamics simulation design, so a large amount of research work is carried out on the tire mechanical property test bed at home and abroad.
When the mechanical characteristics of the tire are researched, a corresponding test bed needs to be built for testing to obtain data, and a general mechanical characteristics research test bed adopts conveyor belt type flat plate movement to simulate a road surface for testing, but the conveyor belt type flat plate limitation causes the tire to only move at a low speed, so that the test and research on the mechanical characteristics of the tire in a high-speed rolling state are not facilitated. In order to solve the problem, a part of a simulated road surface needs to be redesigned, but no matter a roller test bed, a crawler test bed or a flat belt test bed can not well solve the problems of rigidity and rigidity uniformity of a contact surface of the simulated road surface and a tire when the tire rolls at a high speed, under the premise, patent No. 2014107569225 provides a tire high-frequency mechanical property test bed and a test method, by fixing an uninflated tire on a mounting plate, the mounting plate is arranged above a rotary drum, the outer side surface of the rotary drum is arranged into the simulated road surface which is in contact with the tire, a driving motor is adopted to drive the rotary drum through a driving wheel and a driven wheel, the tire is inflated to be in contact and roll with the rotary drum, the inner side of the rotary drum is fixedly supported by double plates and reinforcing rib plates, and the high rigidity and the uniformity of the tire can be kept when the high-speed rotation is carried out, the test bed can meet the mechanical property test conditions of the tire under high-speed rolling. However, the mounting plate and the fixing frame are positioned by screwing bolts, and the screw holes on the mounting plate have a predetermined gap, so that the distance precision between each device is difficult to ensure in the processing technology of equipment, the accurate positioning between the tire and the simulated road surface cannot be realized, and meanwhile, in the actual tire rolling, the tire can vibrate when passing through a bump on a rotary drum, so that the vertical position of the tire is influenced to a certain extent, the positioning deviation of the tire is caused, and the influence is brought to the mechanical property test of the tire.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a technical problem that will solve provides a high-speed high rigidity test bench, can accurate location tire position, keeps the location rigidity and the simulation road surface rigidity of tire.
In order to solve the technical problem, an embodiment of the present invention adopts a high-speed high-rigidity test stand, the test stand comprises a base, a road surface simulation mechanism installed above the base for simulating a road surface for a tire to roll, and a driving mechanism connected with the road surface simulation mechanism for providing power to the road surface simulation mechanism, the road surface simulation mechanism comprises a mounting frame, a rotary drum arranged inside the mounting frame, two panels installed inside the rotary drum, a fixing member connected with the two panels, a main shaft penetrating the fixing member, and a projection installed outside the rotary drum, a tire control mechanism for adjusting a vertical position of the tire relative to the rotary drum is further arranged above the road surface simulation mechanism, the tire control mechanism comprises a fixing frame installed perpendicular to the base and a tire positioning device installed on one side of the fixing frame, the tire positioning device comprises a servo power piece for providing loading power, a lifting plate connected with the servo power piece and a connecting piece arranged on the lifting plate and used for being connected with a rim of the tire, wherein a six-component force sensor is arranged on the connecting piece.
Furthermore, the two sides of the lifting plate are also provided with movable rods, the fixed frame is provided with a movable slide rail which is vertically arranged, the movable slide rail is provided with a sliding seat which moves along the slide rail direction, and the sliding seat is connected with the lifting plate.
Furthermore, the driving mechanism comprises a driving motor, a driving wheel connected with the driving motor, a driven wheel arranged on the main shaft and an air blower arranged above the driving motor, a first transmission belt is connected between the driving wheel and the driven wheel, and the inner side of the driven wheel is fixed with the main shaft.
Furthermore, a synchronizing wheel which keeps synchronous rotation with the driven wheel is further installed on the main shaft, a speed measuring device is further installed on one side of the synchronizing wheel, and a second driving belt is connected between the speed measuring device and the synchronizing wheel.
Furthermore, the two ends of the main shaft are provided with positioning blocks for radially fixing the main shaft, the mounting frame is further provided with a groove matched with the main shaft, and the positioning blocks and the groove are jointly used for fixing the main shaft.
Further, the lug is axially arranged parallel to the main shaft.
After the technical scheme is adopted, the embodiment of the utility model provides an at least, following beneficial effect has: the embodiment of the utility model provides a carry out vertical drive to the lifter plate through setting up servo power spare, install tire and lifter plate on the connecting piece and keep synchronous lift removal, when the tire takes place to contact with the rotary drum, control servo power spare and carry out the auto-lock to reach the gapless accurate positioning of tire on vertical, because servo power spare has been locked, the position of tire on vertical obtains good fixed, has guaranteed the location rigidity of tire. Set up double-width plate and steadying piece simultaneously and form the rigidity of inside support in order to keep the simulation road surface to the rotary drum for can both obtain good fixed when tire and simulation road surface roll, effectively keep the relative position between tire and the simulation road surface, guarantee the mechanical properties test accuracy degree of tire.
Drawings
Fig. 1 is a perspective view of a high-speed high-rigidity test stand according to an alternative embodiment of the present invention.
Fig. 2 is an exploded schematic view of a high-speed high-rigidity test bed according to an alternative embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view of a high speed high stiffness test stand of an alternative embodiment of the present invention along the circumference of a drum during tire installation.
Detailed Description
The present application will now be described in further detail with reference to the accompanying drawings and specific examples. It is to be understood that the following illustrative embodiments and description are only intended to illustrate the present invention, and are not intended to limit the present invention, and features in the embodiments and examples may be combined with each other in the present application without conflict.
An optional embodiment of the utility model provides a high-speed high rigidity test bench, as shown in fig. 1-3, the test bench include base 1, install in base 1 top be used for simulating the road surface and supply tire 2 to carry out rolling road surface simulation mechanism 3 and with road surface simulation mechanism 3 links to each other and is used for providing power for drive mechanism 5 of road surface simulation mechanism 3, road surface simulation mechanism 3 include mounting bracket 30, set up in the inside rotary drum 32 of mounting bracket 30, install in the inboard double-amplitude plate 34 of rotary drum 32, with steadying 36 that double-amplitude plate 34 links to each other, wear to locate main shaft 38 in steadying 36 and install in the lug 321 in the rotary drum 32 outside, road surface simulation mechanism 3 top still is provided with and is used for adjusting tire 2 for the tire control mechanism 7 of the vertical position of rotary drum 32, tire control mechanism 7 includes the perpendicular to the mount 70 of base 1 installation and set up in fixed mount 321 The tire positioning device 72 on one side of the frame 70 comprises a servo power part 721 for providing loading power, a lifting plate 723 connected with the servo power part 721 and a connecting piece 725 arranged on the lifting plate 723 and used for being connected with a rim of the tire 2, wherein the connecting piece 725 is provided with a six-component force sensor 9.
The embodiment of the utility model provides a come to carry out vertical drive to lifter plate 723 through setting up servo power piece 721, install tire 2 and lifter plate 723 on connecting piece 725 and keep synchronous lift removal, when tire 2 and rotary drum 32 take place to contact, control servo power piece 721 and carry out the auto-lock to reach tire 2 at vertical zero clearance accurate positioning, because servo power piece 721 has locked, tire 2 obtains good fixed in vertical position, has guaranteed tire 2's location rigidity. Meanwhile, the double-width plate 34 and the stable piece 36 are arranged to form internal support for the rotary drum 32 so as to keep the rigidity of the simulated road surface, so that the tire 2 and the simulated road surface can be well fixed when rolling, the relative position between the tire 2 and the simulated road surface is effectively kept, and the mechanical property test accuracy of the tire 2 is ensured.
In another optional embodiment of the present invention, the two sides of the lifting plate 723 are further provided with a movable rod 741, the fixed frame 70 is provided with a movable sliding rail 701 arranged vertically, the movable sliding rail 701 is provided with a sliding seat 703 moving along the sliding rail direction, and the sliding seat 703 is connected to the lifting plate 723.
In this embodiment, the movable slide rail 701 and the movable rod 741 are arranged to perform a lifting operation, so that the lifting position of the tire 2 can be precisely adjusted according to actual conditions, and the positioning accuracy of the tire 2 is improved.
In another optional embodiment of the present invention, as shown in fig. 2, the driving mechanism 5 includes a driving motor 50, a driving wheel 51 connected to the driving motor 50, a driven wheel 52 installed on the main shaft 38, and a blower 53 disposed above the driving motor 50, wherein a first transmission belt 54 is connected between the driving wheel 51 and the driven wheel 52, and the driven wheel 52 is fixed to the main shaft 38.
This embodiment drives the action wheel 51 through setting up driving motor 50 and rotates, action wheel 51 drives through first drive belt 54 and rotates from driving wheel 52, and drive through from driving wheel 52 and rotate rather than inboard fixed main shaft 38 synchronization, thereby accomplish the drive to rotary drum 32, adopt action wheel 51, from the drive mode of driving wheel 52 and first drive belt 54, can effectively provide fast-speed rotation drive power, separate between messenger driving motor 50 and the rotary drum 32 simultaneously, dispel the heat through air-blower 53, avoid the heat transfer in the driving motor 50 course of operation, the overall stability of the device is improved.
In another optional embodiment of the present invention, a synchronizing wheel 55 is further installed on the main shaft 38, and keeps rotating synchronously with the driven wheel 52, a speed measuring device 56 is further installed on one side of the synchronizing wheel 55, and a second driving belt 57 is connected between the speed measuring device 56 and the synchronizing wheel 55.
This embodiment is through installing synchronizing wheel 55 on main shaft 38 to be connected with speed sensor 56 through second drive belt 57, can carry out good record to main shaft 38 pivoted speed, separately set up synchronizing wheel 55 and speed sensor 56 simultaneously and can conveniently overhaul the change, improve the convenience of device.
In another optional embodiment of the present invention, the two ends of the main shaft 38 are further provided with a positioning block 381 for radially fixing the main shaft 38, the mounting frame 30 is further provided with a groove 301 adapted to the main shaft 38, and the positioning block 381 and the groove 301 are jointly aligned to the main shaft 38.
In this embodiment, the positioning block 381 and the groove 301 are arranged to fix the radial position of the main shaft 38, so that the vertical position of the main shaft 38 during rotation does not deviate, and the rigidity of the rotary drum 32 during rotation is effectively ensured.
In yet another alternative embodiment of the present invention, as shown in fig. 3, the projection 321 is axially disposed parallel to the main shaft 38.
In this embodiment, the bump 321 is parallel to the axial direction of the main shaft 38, so that the tread deformation rule of the tire 2 passing through the bump 381 is convenient for calculating the test data of the tire mechanical characteristics.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention, and these forms are within the scope of the present invention.
Claims (6)
1. The high-speed high-rigidity test bed is characterized in that a tire control mechanism for adjusting the vertical position of a tire relative to a rotary drum is further arranged above the road surface simulation mechanism, the tire control mechanism comprises a fixing frame and a tire positioning device, the fixing frame is perpendicular to the base, the tire positioning device is arranged on one side of the fixing frame, and the tire positioning device comprises a servo power piece for providing loading power, a driving mechanism and a driving mechanism, wherein the road surface simulation mechanism is used for simulating a road surface to enable the tire to roll, the driving mechanism is connected with the road surface simulation mechanism and used for providing power for the road surface simulation mechanism, the road surface simulation mechanism comprises a mounting frame, the rotary drum is arranged inside the mounting frame, a double-width plate is arranged on the inner side of the rotary drum, a fixing piece is connected with the double-width plate, a main shaft penetrates through the fixing piece and is arranged on the outer side of the rotary drum, and the tire control mechanism comprises a fixing frame perpendicular to the base and a tire positioning device arranged on one side of the fixing frame, and the servo power piece for providing loading power, The tire rim connecting device comprises a lifting plate connected with the servo power part and a connecting piece arranged on the lifting plate and used for being connected with a rim of a tire, wherein a six-component sensor is arranged on the connecting piece.
2. The high-speed high-rigidity test bed according to claim 1, wherein movable rods are further arranged on two sides of the lifting plate, a movable slide rail arranged in a vertical direction is mounted on the fixed frame, a sliding seat moving in the direction of the slide rail is arranged on the movable slide rail, and the sliding seat is connected with the lifting plate.
3. The high-speed high-rigidity test bed as claimed in claim 1, wherein the driving mechanism comprises a driving motor, a driving wheel connected with the driving motor, a driven wheel installed on the main shaft and a blower arranged above the driving motor, a first transmission belt is connected between the driving wheel and the driven wheel, and the inner side of the driven wheel is fixed with the main shaft.
4. A high-speed high-rigidity test bed as claimed in claim 3, wherein the main shaft is further provided with a synchronizing wheel which keeps synchronous rotation with the driven wheel, one side of the synchronizing wheel is further provided with a speed measuring device, and a second transmission belt is connected between the speed measuring device and the synchronizing wheel.
5. The high-speed high-rigidity test bed according to claim 1, wherein two ends of the spindle are further provided with positioning blocks for radially fixing the spindle, the mounting frame is further provided with a groove matched with the spindle, and the positioning blocks and the groove jointly fix the spindle.
6. A high speed high stiffness test stand according to claim 1 wherein the nubs are axially disposed parallel to the spindle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202022919225.0U CN213902881U (en) | 2020-12-08 | 2020-12-08 | High-speed high-rigidity test bed |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022919225.0U CN213902881U (en) | 2020-12-08 | 2020-12-08 | High-speed high-rigidity test bed |
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| CN213902881U true CN213902881U (en) | 2021-08-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485024A (en) * | 2020-12-08 | 2021-03-12 | 吉林大学 | High-speed high-rigidity test bed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485024A (en) * | 2020-12-08 | 2021-03-12 | 吉林大学 | High-speed high-rigidity test bed |
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