CN217930828U - Comprehensive performance test bench for multi-axle commercial vehicle - Google Patents
Comprehensive performance test bench for multi-axle commercial vehicle Download PDFInfo
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- CN217930828U CN217930828U CN202221355185.4U CN202221355185U CN217930828U CN 217930828 U CN217930828 U CN 217930828U CN 202221355185 U CN202221355185 U CN 202221355185U CN 217930828 U CN217930828 U CN 217930828U
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Abstract
The utility model provides a comprehensive properties test bench for multiaxis commercial car, including the support, arrange in proper order from one end to the other end on the support and be provided with fixed roller group, activity roller group one, activity roller group two, activity roller group three, wheel fixed connection about the front axle of fixed roller group and vehicle is provided with the lifting device who is used for the supplementary smooth business turn over test bench of examined vehicle on the fixed roller group, wheel fixed connection about the rear axle of activity roller group one or activity roller group two or activity roller group three and vehicle. The utility model provides a comprehensive properties test bench for multiaxis commercial car can realize mixing the test to multiple motorcycle type, greatly increased the efficiency and the test economic nature of test.
Description
Technical Field
The utility model relates to a (automobile inspection technology) field, in particular to (a comprehensive properties test bench that can be used to multiaxis commercial car).
Background
With the continuous development of economy, the demand of the national logistics industry and the national building industry for large-tonnage multi-axle commercial vehicles is continuously increased. The continuously increased demand quantity promotes the yield of the multi-axle commercial vehicle to increase year by year, and in order to guarantee the safety of transportation, the performance test requirement of the vehicle per se also increases year by year, so that a higher requirement is provided for the comprehensive performance test bench of the multi-axle commercial vehicle, and a more economical, efficient and more universal test bench is needed in the performance test of the multi-axle commercial vehicle, namely, the test bench is passed through, and the test of multiple performances and the performance test of vehicles of various types are realized.
Each performance test mode of the existing multi-axis commercial vehicle is to test a single fixed vehicle model through various test beds, and mixed test of various vehicle models cannot be realized, so that the test efficiency and the test economy are very low, and the technical problem is solved by the scheme.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a comprehensive properties test bench for multiaxis commercial car has solved how to realize carrying out the technical problem that mixes the test to multiple motorcycle type, greatly increased the efficiency and the test economy of test.
The utility model provides a comprehensive properties test bench for multiaxis commercial car, includes the support, it is provided with fixed cylinder group, activity cylinder group one, activity cylinder group two, activity cylinder group three to arrange in proper order from one end to the other end on the support, wheel fixed connection about fixed cylinder group and the front axle of vehicle, be provided with on the fixed cylinder group and be used for the supplementary device that lifts that is used for examining the smooth business turn over test bench of vehicle, wheel fixed connection about activity cylinder group one or activity cylinder group two or activity cylinder group three and the rear axle of vehicle.
The fixed roller group comprises two sets of roller assemblies I arranged on the left and right, each roller assembly I comprises two roller bodies I arranged in the front and back direction, the left and right wheels of the front shaft are tangent to the upper parts of the two roller bodies I, and the centers of the left and right wheels of the front shaft and the central connecting line of the two roller bodies I are triangular;
and the first roller assembly is connected with the first driving motor.
The testing device can accurately position and fix the tested vehicle, prevents the tested vehicle from being inaccurately positioned to influence test data, and simultaneously prevents the tested vehicle from generating displacement in the testing process to cause safety accidents.
The first movable roller group, the second movable roller group and the third movable roller group respectively comprise two sets of roller assemblies II which are arranged on the left and right sides, the roller assemblies II comprise a roller body II and a driving motor II, and left and right wheels of a rear shaft of the vehicle respectively fall on the two roller bodies II which are arranged on the left and right sides.
The first movable roller group also comprises a first movable frame, the first movable frame is slidably arranged on the bracket and is connected with the first moving mechanism;
the second movable roller group also comprises a second movable frame, the second movable frame is slidably arranged on the first movable frame, and the second movable frame is connected with the second movable mechanism;
the third movable roller group further comprises a third movable frame, the third movable frame is slidably arranged on the second movable frame, and the third movable frame is connected with the third movable mechanism.
The first moving mechanism comprises a first screw rod, a first motor base and a first fixed base which are respectively arranged at two ends of the first screw rod, and a first nut base arranged on the first screw rod, wherein the first motor base is provided with a first motor which is connected with the first screw rod, and the first nut base is connected with the bottom end of the first moving frame;
the first motor base and the first fixing base are respectively arranged on the support.
The second moving mechanism comprises a second screw rod, a second motor base and a second fixed base which are respectively arranged at two ends of the second screw rod, and a second nut base arranged on the second screw rod, wherein a second motor is arranged on the second motor base, the second motor is connected with the second screw rod, and the second nut base is connected with the bottom end of the second moving frame;
the motor base II and the fixing base II are respectively arranged on the moving frame I.
The third moving mechanism comprises a third screw rod, a third motor base and a third fixed base which are respectively arranged at two ends of the third screw rod, and a third nut base which is arranged on the third screw rod, wherein a third motor is arranged on the third motor base, the third motor is connected with the third screw rod, and the third nut base is connected with the bottom end of the third moving frame;
the motor base III and the fixing base III are respectively arranged on the movable frame II.
The first motor, the second motor and the third motor are all connected with a PLC.
The braking performance, economy, durability and emission performance of the automobile can be tested by different control modes of the alternating current vector control motor and the control system respectively.
The alternating current vector motor has two working states, namely a motor state and a generator state, when the alternating current vector motor is used as a generator, the generated electric energy can drive other motors to work, and the rest electric energy can be uploaded to a power grid of a user.
The surfaces of the first roller body and the second roller body are both bonded with sand or treated with a coating.
The real road condition can be simulated to test the automobile, so that the test data is more accurate.
The fixed roller groups are used for testing the braking performance, the economical efficiency, the durability, the emission performance and other performances of a front axle of a front-drive vehicle, meanwhile, the four fixed roller groups are used for fixing the vehicle, the detected vehicle is prevented from displacing in the driving direction during vehicle performance testing, the moving mechanism drives the lead screw to move through the motor to adjust the mutual distance between the three sets of movable roller groups and the distance between the three sets of movable roller groups, and it is ensured that each axle of the tested vehicle can be respectively pressed on the fixed roller groups and the movable roller groups.
The movable roller sets are used for testing the braking performance, the economy, the durability, the emission performance and other performance of a plurality of shafts behind the vehicle respectively, the side guide structures are used for ensuring the safety of the vehicle on the test bed, the lifting devices can help the vehicle to smoothly start forwards after the test is finished and leave the test bed, and meanwhile, the lifting devices can cooperate with the weighing devices to finish the measurement of the axle weight of the vehicle.
The testing of braking performance, economy, durability and emission performance mainly comprises the steps that a first left roller body and a first right roller body of a fixed roller group are respectively connected with a 200kW alternating current vector control motor, a second left roller body and a first right roller body of a movable roller group are respectively connected with a 200kW alternating current vector control motor, the motors are controlled by a frequency converter and independently work in a driving motor or generator mode, a set of control units are used for detecting parameters (rotating speed/torque) required by independent and synchronous operation of the motors, data transmission is carried out through a bus system, the control modes of quick response, constant rotating speed and constant torque and strong overload capacity are achieved, and the braking performance, economy, durability and emission performance data of an automobile can be tested through different control modes of the alternating current vector control motor and the control system.
The alternating current vector motor can realize real-time control with the fixed roller set, during test, the alternating current motor corresponding to the driving shaft of the tested automobile drives the roller set to drive the automobile, and can also be driven by the automobile to generate electricity, the generated electricity can be transmitted to the motor at the non-driving shaft, and the rest electric energy can be fed back to a power grid of a user factory, so that the energy is saved, and the normal work of the power grid of the factory is not influenced.
The diameter of each roller body is 502mm, the length of each roller body is 800mm, the inner distance of each roller body is 1100mm, the balance mass of each roller body conforms to the standard Q6.3 and ISO 1940, the surface of each roller body is bonded with sand or is coated, real road conditions can be simulated to test an automobile, the mass inertia of a front shaft roller set and a rear shaft roller set can be respectively determined by optimization according to the front axle weight proportion and the rear axle weight proportion of all automobile types, and the test bed has the function of simulating the automobile mass in a stepless change mode within a certain range and is suitable for various test automobile types with different front axle weight proportions and rear axle weight proportions.
The utility model discloses reach following effect of showing:
(1) The motor drives the screw rod to move in the moving mechanism, so that the position of the movable roller can be accurately controlled, and the accurate movement and positioning of the wheelbase are realized, wherein the adjustment accuracy of the wheelbase is +/-0.5 mm;
the test bed comprises three sets of wheel base adjusting devices, the distances between the second, third and fourth shafts of the roller sets are adjusted respectively, and after calculation, the wheel bases can be adjusted in the shortest time, so that the test efficiency is greatly improved;
in addition, the moving range of the wheelbases is customized according to customer requirements, the shortest wheelbases of the first shaft and the second shaft are 2 meters, the largest wheelbases of the first shaft and the fourth shaft are 8 meters, during testing, the wheelbases are automatically adjusted according to vehicle models, the motors are driven and controlled, mixed testing of different vehicle models is met, a plurality of wheelbases can be set according to the vehicle models in the wheelbase adjusting range, and the application range is greatly enlarged;
(2) The fixed roller group is provided with four first roller bodies, the left roller body and the right roller body are respectively provided with two, and the front wheel tires of the vehicle fall into the middle of the two first roller bodies, so that the accurate positioning and fixing of the front axle of the vehicle are realized;
(3) The braking performance, the economy, the durability and the emission performance of the automobile can be tested through different control modes of an alternating current vector control motor and a control system respectively, the working states of the alternating current vector motor are two, namely a motor state and a generator state, when the alternating current vector motor is used as a generator, the generated electric energy can drive other motors to work, and the rest electric energy can be uploaded to a power grid of a user, so that the use economy is greatly improved;
(4) The surface of the roller body is bonded with sand or is coated, so that the real road condition can be simulated to test the automobile, and the test data is more accurate.
Drawings
Fig. 1 is the structure schematic diagram of the test bed for testing the comprehensive performance of the utility model.
Fig. 2 is a schematic structural view of the middle fixed roller set of the present invention.
Fig. 3 is a schematic structural view of the middle movable roller set of the present invention.
Fig. 4 is a schematic structural diagram of the first moving mechanism of the present invention.
Wherein the reference numerals are: 1. a lifting mechanism; 2. a side guide structure; 3. a support; 4. driving a motor I; 5. a first moving mechanism; 51. a first motor; 52. a motor base I; 53. a first nut seat; 54. a first lead screw; 55. a first fixed seat; 6. a second driving motor; 7. a second roller body; 8. a first movable frame; 9. a second moving frame; 10. a third movable frame; 11. a first roller body; 12. a grid plate; 13. fixing the roller set; 14. a first movable roller set; 15. a second movable roller set; 16. and a third movable roller group.
Detailed Description
In order to make the technical features of the present solution clearer, the present solution is explained by the following embodiments.
Referring to fig. 1-4, a comprehensive performance test bench for a multi-axle commercial vehicle comprises a support 3, a fixed roller set 13, a movable roller set I14, a movable roller set II 15 and a movable roller set III 16 are sequentially arranged on the support 3 from one end to the other end, the fixed roller set 13 is fixedly connected with left and right wheels of a front axle of the vehicle, a lifting device for assisting the vehicle to be tested to smoothly enter and exit the test bench is arranged on the fixed roller set 13, and the movable roller set I14, the movable roller set II 15 or the movable roller set III 16 is fixedly connected with left and right wheels of a rear axle of the vehicle.
The fixed roller group 13 comprises two sets of roller assemblies I arranged on the left and right, each roller assembly I comprises two roller bodies I11 arranged in front and back, left and right wheels of a front shaft are tangent to the upper parts of the two roller bodies I11, and the connecting line of the centers of the left and right wheels of the front shaft and the centers of the two roller bodies I11 is triangular;
the first roller assembly is connected with a first driving motor 4.
Preferably, the two sets of roller assemblies are respectively provided with a lifting mechanism and a side guide structure for adjusting the height of the roller assemblies, the side guide structure is arranged at the end part of the roller body I and used for guiding the roller body I to lift, the specific structure of the side guide structure is a mechanical common mechanism, and the lifting and guiding functions can be realized in principle, and are not detailed herein.
Preferably, a grating plate 12 is further disposed at the upper end between the two sets of roller assemblies 11, and the grating plate can prevent oil or water from dripping downwards on the vehicle for collecting oil and water.
The testing device can accurately position and fix the tested vehicle, prevents the tested vehicle from being inaccurately positioned to influence test data, and simultaneously prevents the tested vehicle from generating displacement in the testing process to cause safety accidents.
The first movable roller group 14, the second movable roller group 15 and the third movable roller group 16 respectively comprise two sets of roller assemblies II arranged on the left and right, each roller assembly II comprises a roller body II 7 and a driving motor II 6, and left and right wheels of a rear shaft of the vehicle respectively fall on the two roller bodies II 7 arranged on the left and right.
The first movable roller group 14 further comprises a first movable frame 8, the first movable frame 8 is slidably arranged on the bracket 3, and the first movable frame 8 is connected with the first moving mechanism 5;
the second movable roller group 15 further comprises a second movable frame 9, the second movable frame 9 is slidably arranged on the first movable frame 8, and the second movable frame 9 is connected with the second movable mechanism;
the third movable roller set 16 further comprises a third movable frame 10, the third movable frame 10 is slidably disposed on the second movable frame 9, and the third movable frame 10 is connected with the third movable mechanism.
The first moving mechanism 5 comprises a first lead screw 54, a first motor seat 52 and a first fixed seat 55 which are respectively arranged at two ends of the first lead screw 54, and a first nut seat 53 arranged on the first lead screw 54, wherein a first motor 51 is arranged on the first motor seat 52, the first motor 51 is connected with the first lead screw 54, and the first nut seat 53 is connected with the bottom end of the first moving frame 8;
the first motor seat 52 and the first fixing seat 55 are respectively arranged on the bracket 3.
The second moving mechanism comprises a second screw rod, a second motor base and a second fixed base which are respectively arranged at two ends of the second screw rod, and a second nut base arranged on the second screw rod, wherein the second motor is arranged on the second motor base, the second motor is connected with the second screw rod, and the second nut base is connected with the bottom end of the second moving frame 9;
the second motor base and the second fixed base are respectively arranged on the first movable frame 8.
The third moving mechanism comprises a third screw rod, a third motor seat and a third fixed seat which are respectively arranged at two ends of the third screw rod, and a third nut seat arranged on the third screw rod, wherein a third motor is arranged on the third motor seat, the third motor is connected with the third screw rod, and the third nut seat is connected with the bottom end of the third moving frame 10;
the motor base III and the fixing base III are respectively arranged on the second movable frame 9.
Since the first moving mechanism 5, the second moving mechanism and the third moving mechanism have the same structural characteristics except for different positions, they are not labeled in detail in the drawings and thus will not be described here.
The first motor 51, the second motor and the third motor are all connected with the PLC.
The braking performance, economy, durability and emission performance of the automobile can be tested through different control modes of the alternating current vector control motor and the control system respectively.
The alternating current vector motor has two working states, namely a motor state and a generator state, when the alternating current vector motor is used as a generator, the generated electric energy can drive other motors to work, and the rest electric energy can be uploaded to a power grid of a user.
The surfaces of the first roller body 11 and the second roller body 7 are both bonded with sand or coated.
The real road condition can be simulated to test the automobile, so that the test data is more accurate.
The fixed roller group 13 is used for testing the braking performance of the front axle of the front-wheel drive vehicle, economy, durability, emission and other performances, and meanwhile, the vehicle is fixed through the four fixed roller groups 13, so that the detected vehicle is prevented from displacing in the driving direction during vehicle performance testing, the moving mechanism drives the lead screws through the motors to move so as to adjust the mutual distance between the three sets of movable roller groups and the fixed roller group 13, and each axle of the tested vehicle can be guaranteed to be pressed on the fixed roller group 13 and the movable roller group respectively.
The movable roller sets are used for respectively testing the braking performance, the economical efficiency, the durability, the emission performance and other performances of a plurality of shafts behind the vehicle, the side guide structures 2 are used for ensuring the safety of the vehicle on the test bed, the lifting devices can help the vehicle to smoothly start forwards after the test is finished and leave the test bed, and meanwhile, the lifting devices can cooperate with the weighing devices to finish the measurement of the axle weight of the vehicle.
The testing of the braking performance, the economy performance, the durability and the emission performance is mainly characterized in that a left roller body I11 and a right roller body I11 of a fixed roller group 13 are respectively connected with a 200kW alternating current vector control motor, a left roller body and a right roller body of a movable roller group are respectively connected with a 200kW alternating current vector control motor, the motors are controlled by a frequency converter and independently work in a driving motor or generator mode, a set of control units detect parameters (rotating speed/torque) required by the independent and synchronous running of the motors, data transmission is carried out through a bus system, the control modes of quick response, constant rotating speed and constant torque and strong overload capacity are achieved, and the braking performance, the economy performance, the durability and the emission performance data of an automobile can be tested through different control modes of the alternating current vector control motor and the control system.
The alternating current vector motor can realize real-time control with the fixed roller set 13, during test, the alternating current motor corresponding to the driving shaft of the tested automobile drives the roller set to drive the automobile, and can also be driven by the automobile to generate electricity, the generated electricity can be transmitted to the motor at the non-driving shaft, and the rest electricity can be fed back to a factory power grid of a user, so that energy is saved, and the normal work of the factory power grid is not influenced.
The diameter of each roller body is 502mm, the length of each roller body is 800mm, the inner distance of each roller body is 1100mm, the balance mass of each roller body conforms to the standard Q6.3 and ISO 1940, the surface of each roller body is bonded with sand or is coated, real road conditions can be simulated to test an automobile, the mass inertia of a front shaft roller set and a rear shaft roller set can be respectively determined by optimization according to the front axle weight proportion and the rear axle weight proportion of all automobile types, and the test bed has the function of simulating the automobile mass in a stepless change mode within a certain range and is suitable for various test automobile types with different front axle weight proportions and rear axle weight proportions.
The utility model discloses a concrete working process:
the scheme of the utility model comprises a bracket 3, a set of fixed roller set 13, a three-layer moving mechanism, three sets of movable roller sets, a side guide structure 2, a lifting mechanism 1 and the like;
firstly, equipment is powered on, before a vehicle to be detected runs to a test bench, an industrial personal computer obtains model parameters of the vehicle to be detected through data, a PLC controls a motor to act, a lead screw is connected with the motor and driven by the motor to rotate, a nut on the lead screw is connected with a moving frame of a movable roller set through a nut seat, the movable roller set is displaced under the rotation action of the lead screw, and when the movable roller set moves to a proper position, the PLC controls the motor to be powered off, and wheel track adjustment is completed;
after the wheel track adjustment is finished, the control system controls the lifting mechanism 1 to act, the lifting mechanism 1 is lifted, and the vehicle to be detected can drive into a test bench at the moment, so that the front wheel of the vehicle to be detected just stops between the front roller and the rear roller of the fixed roller group 13;
the driver presses a vehicle in-place button, the test is started, the device sequentially tests the axle weight, the vehicle speed, the braking performance, the economy, the durability and the emission performance of the vehicle to be tested, after the test items of the vehicle are finished, the lifting mechanism 1 lifts the auxiliary vehicle to drive away from the test bed, the industrial personal computer reads the axle distance information of the next vehicle to be tested, the test bed is controlled to adjust the axle distance, and the steps are repeated.
The technical features of the present invention that are not described can be realized through or by the prior art, and are not described herein again, and certainly, the above description is not a limitation of the present invention, the present invention is not limited to the above examples, and the changes, modifications, additions or replacements made by the ordinary skilled person in the art in the essential scope of the present invention should also belong to the protection scope of the present invention.
Claims (8)
1. The utility model provides a comprehensive properties test bench for multiaxis commercial car, includes support (3), its characterized in that, it has fixed roller group (13), activity roller group one (14), activity roller group two (15), activity roller group three (16) to arrange in proper order from one end to the other end on support (3), wheel fixed connection about fixed roller group (13) and the front axle of vehicle, be provided with the lifting device who is used for assisting the smooth business turn over test bench of examined vehicle on fixed roller group (13), wheel fixed connection about activity roller group one (14) or activity roller group two (15) or activity roller group three (16) and the rear axle of vehicle.
2. The comprehensive performance test bench for the multi-axle commercial vehicle according to claim 1, wherein the fixed roller set (13) comprises two sets of first roller assemblies arranged on the left and right, the first roller assemblies comprise two first roller bodies (11) arranged in front and at the back, left and right front-axle wheels are tangent to the upper parts of the two first roller bodies (11), and the centers of the left and right front-axle wheels and the center connecting line of the two first roller bodies (11) are triangular;
the first roller assembly is connected with a first driving motor (4).
3. The comprehensive performance test bench for the multi-axle commercial vehicle according to claim 2, wherein the first movable roller group (14), the second movable roller group (15) and the third movable roller group (16) respectively comprise two sets of second roller assemblies arranged on the left and right, the second roller assemblies comprise a second roller body (7) and a second driving motor (6), and left and right wheels of a rear shaft of the vehicle respectively fall on the two second roller bodies (7) arranged on the left and right.
4. The comprehensive performance testing stand for the multi-axis commercial vehicle according to claim 3, wherein the first movable roller set (14) further comprises a first movable frame (8), the first movable frame (8) is slidably arranged on the bracket (3), and the first movable frame (8) is connected with a first moving mechanism (5);
the second movable roller group (15) further comprises a second movable frame (9), the second movable frame (9) is slidably arranged on the first movable frame (8), and the second movable frame (9) is connected with the second movable mechanism;
the third movable roller set (16) further comprises a third movable frame (10), the third movable frame (10) is slidably arranged on the second movable frame (9), and the third movable frame (10) is connected with the third movable mechanism.
5. The comprehensive performance test bench for the multi-axle commercial vehicle as claimed in claim 4, wherein the first moving mechanism (5) comprises a first lead screw (54), a first motor seat (52) and a first fixed seat (55) which are respectively arranged at two ends of the first lead screw (54), and a first nut seat (53) arranged on the first lead screw (54), wherein a first motor (51) is arranged on the first motor seat (52), the first motor (51) is connected with the first lead screw (54), and the first nut seat (53) is connected with the bottom end of the first moving frame (8);
the first motor base (52) and the first fixing base (55) are respectively arranged on the support (3).
6. The comprehensive performance test bench for the multi-axle commercial vehicle as claimed in claim 4, wherein the second moving mechanism comprises a second lead screw, a second motor seat and a second fixed seat respectively arranged at two ends of the second lead screw, and a second nut seat arranged on the second lead screw, the second motor seat is provided with a second motor, the second motor is connected with the second lead screw, and the second nut seat is connected with the bottom end of the second moving frame (9);
the motor base II and the fixing base II are respectively arranged on the movable frame I (8).
7. The comprehensive performance test bench for the multi-axle commercial vehicle as claimed in claim 4, wherein the third moving mechanism comprises a third screw rod, a third motor seat and a third fixed seat which are respectively arranged at two ends of the third screw rod, and a third nut seat which is arranged on the third screw rod, wherein a third motor is arranged on the third motor seat, the third motor is connected with the third screw rod, and the third nut seat is connected with the bottom end of the third moving frame (10);
the motor base III and the fixing base III are respectively arranged on the movable frame II (9).
8. A comprehensive performance test bench for multi-axle commercial vehicles according to claim 3, characterized in that the surfaces of the first and second roller bodies (11, 7) are both sanded or coated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221355185.4U CN217930828U (en) | 2022-06-01 | 2022-06-01 | Comprehensive performance test bench for multi-axle commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221355185.4U CN217930828U (en) | 2022-06-01 | 2022-06-01 | Comprehensive performance test bench for multi-axle commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217930828U true CN217930828U (en) | 2022-11-29 |
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ID=84181339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221355185.4U Active CN217930828U (en) | 2022-06-01 | 2022-06-01 | Comprehensive performance test bench for multi-axle commercial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217930828U (en) |
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2022
- 2022-06-01 CN CN202221355185.4U patent/CN217930828U/en active Active
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