CN217384735U - Performance test bench for inerter/suspension - Google Patents
Performance test bench for inerter/suspension Download PDFInfo
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- CN217384735U CN217384735U CN202122866309.7U CN202122866309U CN217384735U CN 217384735 U CN217384735 U CN 217384735U CN 202122866309 U CN202122866309 U CN 202122866309U CN 217384735 U CN217384735 U CN 217384735U
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- 238000009434 installation Methods 0.000 abstract description 12
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
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Abstract
The utility model discloses a capability test bench for being used to container/suspension, the test bench includes support frame, excitation platform, objective table, draws pressure sensor, acceleration sensor, horizontal pole, fixed plate, pull rod formula displacement sensor, drive assembly, guider, direction stop device. The utility model discloses a servo pneumatic cylinder's of the bench installation of exciting vibration output up-and-down motion is in order to provide the displacement excitation signal of simulation road conditions, connect in the container or the motion thereupon of suspension endpoint of being used to of servo pneumatic cylinder output, through pull rod formula displacement sensor, acceleration sensor and draw pressure sensor etc. and acquire the atress and the motion state of being used to container or suspension endpoint, realized being used to the relevant motion parameter collection of container or suspension under specific excitation based on this, the research for being used to container and suspension system performance provides the experiment platform.
Description
Technical Field
The utility model relates to a capability test bench for being used to container/suspension belongs to engineering vibration isolation technical field.
Background
The Smith professor of cambridge university in 2002 proposes the concept of the inertial container, breaks the limitation of grounding at one end of the mass element, and develops greatly from the research of the inertial container and the vehicle suspension consisting of the inertial container, the damping and the spring. In recent ten years, the development of the inerter is rapid, and a large number of effective inerter models and suspensions containing the inerter emerge.
The model realization forms of the inerter are various, mainly including a rack and pinion type, a ball screw type and a hydraulic type, and the three forms of inerters develop mature structures which are easy to process and manufacture at present, and the effectiveness is verified in related researches. However, for a processed and manufactured inerter sample machine, the performance test of the inerter sample machine is lack of research, so that the working performance of the inerter in the actual application process cannot be guaranteed. In addition, in recent years, various suspension layout forms including inerter have been proposed, and a good vibration isolation effect is obtained in theoretical research, but practical experimental verification is almost not available, and further verification is required for practical application of the inerter in a vehicle suspension.
Disclosure of Invention
The utility model provides a capability test bench for being used to container/suspension to a capability test's that is used to container and suspension test platform and further be used for going on through test platform and be used to the capability test of being used to container and suspension test, realize different test element's data acquisition for the construction.
The technical scheme of the utility model is that: a performance test bench for an inerter/suspension comprises a support frame 1, an excitation table 2, an objective table 3, a tension pressure sensor 10, an acceleration sensor 11, a cross rod 12, a fixing plate 13, a pull rod type displacement sensor 15, a driving part, a guide device and a guide limiting device; the test element is inerter 9/suspension 17;
an excitation table 2 is arranged on the support frame 1, an objective table 3 and the excitation table 2 which are arranged on the support frame 1 through a guide device are arranged up and down, a test element and a pull pressure sensor 10 which are arranged up and down are arranged between the objective table 3 and the excitation table 2, and a guide limiting device is used for fixing the guide device; the output end of a driving part arranged on the excitation table 2 extends out of a fixing plate 13 fixed on the upper part of the excitation table 2, and is connected with the output end of the driving part and one end of a test element through a tension pressure sensor 10, and the other end of the test element is connected with the objective table 3; the output end of the driving part is provided with a cross rod 12 which is arranged in a direction vertical to the motion direction of the output end, one end of the cross rod 12 is connected with the output end of the driving part, and the other end of the cross rod 12 is connected with the moving end of a pull rod type displacement sensor 15 which is fixed through a fixing plate 13; the moving direction of the pull rod type displacement sensor 15 is parallel to the moving direction of the output end of the driving part and the guiding direction of the guiding device; the acceleration sensor 11 is fixedly connected to the acceleration sensor 11.
Furthermore, the driving part adopts a servo hydraulic cylinder 14, and the servo hydraulic cylinder 14 is fixed on the excitation table 2 through a fixing seat 16.
Further, the guide device comprises a guide rail 4, a linear bearing 6 and a guide rail support 7; wherein, the two ends of the guide rail 4 are respectively fixed on the support frame 1 through the guide rail support 7, and the linear bearing 6 fixed on the objective table 3 is matched with the guide rail 4 and slides along the guide rail 4.
Further, the guiding and limiting device adopts an annular clamping ring 5, and the annular clamping ring 5 is installed on the guide rail 4 and used for fixing or releasing the linear bearing 6.
The utility model has the advantages that: the utility model discloses a servo pneumatic cylinder's of the bench installation of exciting vibration output up-and-down motion is in order to provide the displacement excitation signal of simulation road conditions, connect in the container or the suspension endpoint of being used to of servo pneumatic cylinder output and move thereupon, through pull rod formula displacement sensor, acceleration sensor and draw pressure sensor etc. acquire the atress and the motion state of being used to container or suspension an endpoint, realized being used to the relevant motion parameter collection of container or suspension under specific excitation based on this, provide the experiment platform for the research of being used to container and suspension system performance.
Specifically, the support frame is designed to serve as an installation carrier of each part in the whole test bed, is fixedly connected with the ground and is a main body of the whole test bed; the designed excitation table is matched with the fixed seat to install and fix the servo hydraulic cylinder, so that the output end of the servo hydraulic cylinder can provide an excitation signal for vertical motion in the vertical direction; the linear bearing arranged on the objective table is matched with the guide rail arranged on the support frame, so that the objective table can slide up and down along the vertical direction within the length limit range of the guide rail, meanwhile, the counterweight block can be freely added on the objective table through the installation groove of the section bar, and the installation configuration is a vibration reduction effect experiment aiming at the suspension; in addition, the annular clamping ring is designed to fix the linear bearing to slide on the guide rail, so that the objective table is further completely fixed relative to the support frame, and the configuration is directed to a mechanical property experiment of the inertial container; in the design of the application, the appropriate displacement, acceleration and force sensors are selected to acquire parameters required by the experimental process. And based on the installation cooperation and the combined action among the parts, the whole process of the inerter or suspension experiment is completed.
Drawings
FIG. 1 is a schematic structural diagram of an inerter experiment performed by the present invention;
FIG. 2 is a right side view of the present invention for performing an inerter experiment;
FIG. 3 is a top view of the present invention for performing an inerter experiment;
FIG. 4 is a schematic view of the objective table and the guiding device of the present invention;
fig. 5 is a schematic structural view of the middle excitation stage and the components mounted thereon;
fig. 6 is a schematic structural view of a fixing plate and components mounted thereon according to the present invention;
fig. 7 is a schematic structural diagram of the suspension experiment performed by the present invention;
the reference numbers in the figures are: 1. a support frame; 2. an excitation stage; 3. an object stage; 4. a guide rail; 5. an annular snap ring; 6. a linear bearing; 7. a guide rail support; 8. a corner fitting; 9. an inerter; 10. a pull pressure sensor; 11. an acceleration sensor; 12. a cross bar; 13. a fixing plate; 14. a servo hydraulic cylinder; 15. a pull rod type displacement sensor; 16. a fixed seat; 17. and (4) a suspension.
Detailed Description
The invention will be further described with reference to the following drawings and examples, but the scope of the invention is not limited thereto.
Example 1: as shown in fig. 1-7, a performance test bench for inerter/suspension comprises a support frame 1, an excitation table 2, an objective table 3, a tension pressure sensor 10, an acceleration sensor 11, a cross rod 12, a fixing plate 13, a pull rod type displacement sensor 15, a driving part, a guide device and a guide limit device; the test element is inerter 9/suspension 17;
an excitation platform 2 is arranged on the support frame 1, an objective table 3 and the excitation platform 2 which are arranged on the support frame 1 through a guide device are arranged up and down, a test element and a tension and pressure sensor 10 which are arranged up and down are arranged between the objective table 3 and the excitation platform 2, and a guide limiting device is used for fixing the guide device; the output end of a driving part arranged on the excitation table 2 extends out of a fixing plate 13 fixed on the upper part of the excitation table 2, and is connected with the output end of the driving part and one end of a test element through a tension pressure sensor 10, and the other end of the test element is connected with the objective table 3; the output end of the driving part is provided with a cross rod 12 which is arranged in a direction vertical to the motion direction of the output end, one end of the cross rod 12 is connected with the output end of the driving part, and the other end of the cross rod 12 is connected with the moving end of a pull rod type displacement sensor 15 which is fixed through a fixing plate 13; the moving direction of the pull rod type displacement sensor 15 is parallel to the moving direction of the output end of the driving part and the guiding direction of the guiding device; the acceleration sensor 11 is fixedly connected to the acceleration sensor 11. Through the integrative cooperation of drive unit and excitation platform 2, can be convenient for dismouting test subassembly better, adjust the arrangement of drive unit, thereby the installation fixed plate of being convenient for realizes drive unit and pull rod formula displacement sensor's is fixed simultaneously. The cross bar arranged perpendicularly to the output of the drive member can be used effectively for mounting different types of sensors required for the test, in particular: the output end of the hydraulic cylinder is connected with the movable end of the pull rod type displacement sensor, so that the pull rod type displacement sensor can efficiently measure the displacement data of the output end of the hydraulic cylinder; further, an installation platform of the acceleration sensor is provided, so that the acceleration sensor can be prevented from being installed at other space limit positions; still further, the design does not affect the installation of the pull pressure sensor 10, thereby allowing the pull pressure sensor to be effectively used to measure the pull pressure between the hydraulic cylinder output and the inerter (suspension). The whole design can realize the installation of the sensor necessary for the performance test of the inertial container/suspension through the ingenious matching of all parts; meanwhile, one set of structure can test different test elements, and compared with independent test, the use number and maintenance difficulty of special equipment are reduced.
Specifically, the support frame 1 may be fixedly mounted on the ground through expansion bolts, and the outer frame of the excitation table 2 is fixed on the support frame 1 through aluminum profiles, corner fittings 8 and the like; the two guide rails 4 are vertically arranged and are parallel to each other, and are symmetrically installed on the support frame 1 through the four guide rail supports 7, the fixed end of the linear bearing 6 is fixedly connected to a vertical rod on one side, close to the guide rails 4, of the objective table 3, the sliding part of the linear bearing 6 is in sliding connection with the guide rails 4, and the objective table 3 slides up and down relative to the support frame 1 through sliding fit between the linear bearing 6 and the guide rails 4; one end of the inerter 9 or the upper end of the suspension 17 is in bolted connection with the cross bar of the section bar on the objective table 3, the other end of the inerter 9 or the lower end of the suspension 17 is in bolted connection with one end of the tension pressure sensor 10, the other end of the tension pressure sensor 10 is connected with the output end of the servo hydraulic cylinder 14, namely, threaded holes are formed at two ends of the tension pressure sensor 10, and one end of the inerter 9 or the suspension 17, which is far away from the objective table 3, is connected with the output end of the servo hydraulic cylinder 14 through the tension pressure sensor 10; the fixed seat 16 is fixedly connected to a base of the excitation table 2, and one end of the servo hydraulic cylinder 14, which is far away from the inertial container 9, is connected with the fixed seat 16 which is installed on a lower frame of the excitation table 2 through threaded connection; the upper end of the servo hydraulic cylinder 14 passes through a fixing plate 13 with a hole in the middle to be fixed, and the fixing plate 13 is fixedly connected to the upper end of the excitation platform 2; one end of a cylinder body of the pull rod type displacement sensor 15 is fixedly installed on the fixing plate 13, the other end of the cylinder body is suspended, the moving end of the pull rod type displacement sensor 15 is connected with the output end of the servo hydraulic cylinder 14 through a cross rod 12 in a threaded mode, and the acceleration sensor 11 is fixedly connected to the cross rod 12 through gluing.
Specifically, the support frame 1, the vibration exciting table 2 and the objective table 3 are constructed by aluminum profiles, matched corner fittings 8, T-shaped bolts, flange nuts and the like; the advantage of using the aluminium alloy to build the test bed frame is that the material price is cheap, the process of building is simple and flexible, simple to operate. The objective table 3 can be additionally provided with a balancing weight according to experimental conditions so as to change the unsprung mass ratio of the spring, and is suitable for various working conditions; the linear bearing 6 and the guide rail 4 are standard parts, and the cost is low; various inertial containers 9 and suspensions can be flexibly installed between the objective table 3 and the output end of the servo hydraulic cylinder 14; the suspension can be a traditional suspension and can also be a suspension with an inerter, and the following test mode for testing the suspension performance is adopted for testing; the displacement excitation which can be provided by the servo hydraulic cylinder 14 comprises types such as step, pulse, harmonic wave or random excitation; enriches the road condition range that the test bed can simulate, and makes the experiment possess bigger flexibility ratio.
Optionally, the driving component adopts a servo hydraulic cylinder 14, and the servo hydraulic cylinder 14 is fixed on the excitation table 2 through a fixing seat 16.
Optionally, the guiding device comprises a guide rail 4, a linear bearing 6 and a guide rail support 7; wherein, the two ends of the guide rail 4 are respectively fixed on the support frame 1 through the guide rail support 7, and the linear bearing 6 fixed on the objective table 3 is matched with the guide rail 4 and slides along the guide rail 4.
Optionally, the guiding and limiting device adopts an annular snap ring 5, and the annular snap ring 5 is installed on the guide rail 4 and used for fixing or releasing the linear bearing 6. The object stage 3 has two test states of fixing and sliding relative to the support frame 1.
A performance test bench for inerter/suspension can perform the following tests:
the performance test for the inerter is as follows: the test bed is adopted, and the linear bearing 6 in the guide device is fixed by the guide limiting device; simultaneously starting a three-phase asynchronous motor, a pulling pressure sensor 10, an acceleration sensor 11 and a pull rod type displacement sensor 15 in the hydraulic oil station, and driving the output end of a component to move up and down according to the required excitation type: when the output end of the driving part extends out, the pulling pressure sensor 10 connected with the output end of the driving part in the excitation table 2 moves upwards, so that the moving rack of the inertial container 9 connected with the upper end of the pulling pressure sensor 10 is driven to move upwards, the inertial container 9 is in a pressed working state, and the pulling pressure sensor 10 is pressed to be a negative value; when the output end of the driving component contracts, the pulling pressure sensor 10 connected with the output end of the driving component in the excitation platform 2 moves downwards, and then the moving rack connected to the upper end of the pulling pressure sensor 10 is driven to move downwards, the inertia container 9 is in a pulled working state, and the pulling pressure sensor 10 is pulled to be a positive value. In the process, the acceleration sensor 11 and the pull rod type displacement sensor 15 move along with the output end of the driving part, and relevant parameters are collected through an upper computer; and completing the experimental process of the performance test of the inerter 9.
For suspension performance testing: the test bed is adopted, so that the linear bearing 6 in the guide device is released by the guide limiting device; simultaneously starting a three-phase asynchronous motor, a tension pressure sensor 10, an acceleration sensor 11 and a pull rod type displacement sensor 15 in the hydraulic oil station, and driving the output end of a component to move up and down according to the required excitation type: when the output end of the driving part extends out, the tension and pressure sensor 10 connected with the output end of the driving part in the excitation table 2 moves upwards, and then the lower part of a suspension 17 connected with the upper end of the tension and pressure sensor 10 is driven to move upwards, the lower part of the suspension 17 further transmits the upwards movement to the objective table 3, the objective table 3 moves upwards relative to the support frame 1 through a guide device, the suspension 17 is in a compressed working state, and the tension and pressure sensor 10 is compressed to be a negative value; when the output end of the driving component contracts, the tension and pressure sensor 10 connected with the output end of the driving component in the excitation table 2 moves downwards to further drive the lower part of a suspension 17 connected with the upper end of the tension and pressure sensor 10 to move downwards, the lower part of the suspension 17 further transmits the movement to the objective table 3, the objective table 3 moves downwards relative to the support frame 1 through a guide device, the suspension 17 is in a tension working state, and the tension and pressure sensor 10 is in a positive value; in the process, the acceleration sensor 11 and the pull rod type displacement sensor 15 move along with the output end of the driving part, and relevant parameters are collected through an upper computer; the experimental procedure for the performance test of the suspension 17 was completed as described above.
Alternatively, multiple test elements can be used to test independently at the same time by mounting multiple sets of other test stand elements on the support frame in addition to the support frame.
Optionally, when the suspension performance test device is used for a suspension performance test, a balancing weight is freely added to the object stage 3 through the installation groove of the section bar.
The utility model discloses a theory of operation does:
the vibration exciting table 2 is fixedly installed on the bottom framework of the supporting frame 1, the lower end of the servo hydraulic cylinder 13 is hinged to the bottom framework of the vibration exciting table 2 through the fixing seat 15, and the upper end of the servo hydraulic cylinder 14 is fixedly installed through the fixing plate 13 with a central hole in a penetrating mode, so that vertical installation of the servo hydraulic cylinder is guaranteed. The servo hydraulic cylinder 14 is connected with a hydraulic oil station which provides high-pressure oil from the outside through two hydraulic oil pipes and an electro-hydraulic servo valve, and the electro-hydraulic servo valve controls the expansion of the output end of the servo hydraulic cylinder 14 by controlling the on-off of the electro-hydraulic servo valve. The hydraulic oil station comprises an oil tank, a hydraulic oil pump and a three-phase asynchronous motor. Taking a rack and pinion type inerter as an example, the upper end of the inerter 9 is installed on the objective table 2 through a T-shaped bolt, and the tail of a rack at the lower end is provided with threads for connecting the upper end of the pull pressure sensor 10. The output end of the servo hydraulic cylinder 14 is connected with the lower end of the pull pressure sensor 10 through threads.
When the hydraulic oil station works, the three-phase asynchronous motor and each sensor in the hydraulic oil station are started simultaneously, and the output end of the servo hydraulic cylinder 14 moves up and down according to the required vibration excitation types such as step, pulse or harmonic wave and the like so as to simulate the vehicle to pass through an uneven road surface. When the output end of the servo hydraulic cylinder 14 in the excitation platform 2 extends out, the pulling pressure sensor 10 connected with the output end 14 of the servo hydraulic cylinder in the excitation platform 2 moves upwards, so as to drive the movable rack connected with the upper end of the pulling pressure sensor 10 to move upwards, the inertia container 9 is in a pressed working state, and the pulling pressure sensor 10 is pressed to be a negative value; when the output end of the servo hydraulic cylinder 14 in the excitation platform 2 contracts, the pulling pressure sensor 10 connected with the output end of the servo hydraulic cylinder 14 in the excitation platform 2 moves downwards, so that the movable rack connected with the upper end of the pulling pressure sensor 10 is driven to move downwards, the inertia container 9 is in a pulled working state, and the pulling pressure sensor 10 is pulled to be a positive value. In the process, the acceleration sensor 11 and the pull rod type displacement sensor 15 move along with the output end of the servo hydraulic cylinder 14, and relevant parameters are collected through an upper computer. The experimental procedure for the performance test of inerter 9 was performed as described above.
As shown in fig. 7, the suspension 17 constructed by replacing the experimental object inerter 9 is removed from the annular snap ring 5 mounted on the guide rail 4, so that the object stage 2 can slide up and down in the vertical direction relative to the support frame 1, and the rest configurations are unchanged.
When the hydraulic oil station works, the three-phase asynchronous motor and each sensor in the hydraulic oil station are started simultaneously, the output end of the servo hydraulic cylinder 14 starts to move, and each sensor starts to acquire parameters. When the output end of a servo hydraulic cylinder 14 in the excitation platform 2 extends out, a pulling pressure sensor 10 connected with the output end of the servo hydraulic cylinder 14 in the excitation platform 2 moves upwards to drive the lower part of a suspension connected with the upper end of the pulling pressure sensor 10 to move upwards, the lower part of the suspension further transmits the upwards movement to an objective table 3, the objective table 3 moves upwards relative to a support frame 1 through the matching of a linear bearing 6 and a guide rail 4, the suspension is in a pressed working state, and the pulling pressure sensor 10 is pressed to be a negative value; when the output end of a servo hydraulic cylinder 13 in the excitation platform 2 contracts, a tension and pressure sensor 10 connected with the output end of a servo hydraulic cylinder 14 in the excitation platform 2 moves downwards, and then the lower part of a suspension connected to the upper end of the tension and pressure sensor 10 is driven to move downwards, the motion is further transmitted to an objective table 3 by the lower part of the suspension, the objective table 3 moves downwards relative to a support frame 1 through the matching of a linear bearing 6 and a guide rail 4, the suspension is in a tension working state, and the tension and pressure sensor 10 is in a positive value. In the process, the acceleration sensor 11 and the pull rod type displacement sensor 15 move along with the output end of the servo hydraulic cylinder 14, relevant parameters are collected through the upper computer, the objective table 3 presents a motion state different from the output end of the servo hydraulic cylinder 14 due to the vibration isolation effect of the suspension, and the quality of the vibration isolation performance of the suspension is judged by comparing the motion parameters collected by the sensors. The experimental procedure for suspension performance testing was completed as described above.
The present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (4)
1. A performance test bench for inerter/suspension is characterized in that: the device comprises a support frame (1), an excitation table (2), an objective table (3), a tension pressure sensor (10), an acceleration sensor (11), a cross rod (12), a fixing plate (13), a pull rod type displacement sensor (15), a driving part, a guide device and a guide limiting device; the test element is an inerter (9)/a suspension (17);
an excitation platform (2) is arranged on the support frame (1), an objective table (3) arranged on the support frame (1) through a guide device is arranged up and down with the excitation platform (2), a test element and a pull pressure sensor (10) are arranged up and down between the objective table (3) and the excitation platform (2), and a guide limiting device is used for fixing the guide device; the output end of a driving part arranged on the excitation table (2) extends out of a fixed plate (13) fixed on the upper part of the excitation table (2), and is connected with the output end of the driving part and one end of a test element through a tension and pressure sensor (10), and the other end of the test element is connected with an objective table (3); the output end of the driving part is provided with a cross rod (12) which is arranged in a direction vertical to the motion direction of the output end, one end of the cross rod (12) is connected with the output end of the driving part, and the other end of the cross rod (12) is connected with the moving end of a pull rod type displacement sensor (15) which is fixed through a fixing plate (13); the moving direction of the pull rod type displacement sensor (15) is parallel to the moving direction of the output end of the driving part and the guiding direction of the guiding device; the acceleration sensor (11) is fixedly connected to the acceleration sensor (11).
2. The performance test rig for inerter/suspension of claim 1, wherein: the driving part adopts a servo hydraulic cylinder (14), and the servo hydraulic cylinder (14) is fixed on the excitation platform (2) through a fixed seat (16).
3. The performance test rig for inerter/suspension of claim 1, wherein: the guide device comprises a guide rail (4), a linear bearing (6) and a guide rail support (7); wherein both ends of the guide rail (4) are respectively fixed on the support frame (1) through a guide rail support (7), and a linear bearing (6) fixed on the objective table (3) is matched with the guide rail (4) and slides along the guide rail (4).
4. The performance test rig for inerter/suspension of claim 3, wherein: the guide limiting device adopts an annular clamping ring (5), and the annular clamping ring (5) is arranged on the guide rail (4) and used for fixing or releasing the linear bearing (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122866309.7U CN217384735U (en) | 2021-11-22 | 2021-11-22 | Performance test bench for inerter/suspension |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115848548A (en) * | 2022-11-17 | 2023-03-28 | 昆明理工大学 | ISD multilayer suspension support device of half a whole car |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115848548A (en) * | 2022-11-17 | 2023-03-28 | 昆明理工大学 | ISD multilayer suspension support device of half a whole car |
| CN115848548B (en) * | 2022-11-17 | 2024-04-05 | 昆明理工大学 | ISD multi-layer suspension supporting device for half vehicle |
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