CN220794630U - Special experiment trolley for wheel test - Google Patents
Special experiment trolley for wheel test Download PDFInfo
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- CN220794630U CN220794630U CN202322434324.3U CN202322434324U CN220794630U CN 220794630 U CN220794630 U CN 220794630U CN 202322434324 U CN202322434324 U CN 202322434324U CN 220794630 U CN220794630 U CN 220794630U
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- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 238000002474 experimental method Methods 0.000 title claims abstract description 7
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- 239000006096 absorbing agent Substances 0.000 claims description 12
- 230000035939 shock Effects 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000004364 calculation method Methods 0.000 abstract description 2
- 238000012795 verification Methods 0.000 abstract description 2
- 230000001133 acceleration Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000004422 calculation algorithm Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 230000003993 interaction Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
The utility model relates to a special experiment trolley for wheel test, which comprises a frame and wheel mechanisms arranged around the frame, wherein an electric control system and an acquisition camera are fixed on the frame, the wheel mechanisms comprise wheels, a traveling drive, a steering drive and a suspension, the traveling drive is arranged in the center of the inner side of the wheels and can drive the wheels to rotate, one end of the steering drive is rotationally connected with the frame, the other end of the steering drive is connected with the inner side of the wheels, the steering drive can drive the wheels to deflect leftwards or rightwards, the suspension is a group, one end of the suspension is rotationally connected with the frame, and the other end of the suspension is movably connected with the inner side of the wheels. The special experimental trolley for the wheel test and the use method thereof are matched with the wheel, the walking drive, the steering drive, the suspension, the hub axle seat, the electromagnetic drum brake and the like, and are used for the test verification of the wheel test and the acquisition and calculation of various performances and data of the tested wheel, so that the use condition information of the wheel is mastered, and the data support and the safety guarantee are provided for the application of the special experimental trolley for the wheel test under complex road conditions.
Description
Technical Field
The utility model relates to the technical field of wheel tests, in particular to a special experimental trolley for wheel tests.
Background
The analysis of the mechanical characteristics of interaction between the star wheel and simulated star soil is the basis for analyzing and testing the motion performance of the star wheel and even the whole vehicle.
In the past, the testing and simulation of the wheels of the planet car are realized by adopting special testing equipment. The test equipment has a complex structure and high manufacturing cost, but cannot accurately simulate the actual service condition information of the wheel in a complex environment, and the test result is inaccurate.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides the special experimental trolley for the wheel test, which is flexible to adjust, accurate to test and capable of adapting to complex road conditions.
The utility model is realized by the following technical scheme:
the utility model provides a special experiment dolly of wheel test, includes the frame and sets up in frame four sides wheel mechanism, be fixed with electric control system and gather the camera on the frame, wheel mechanism includes wheel, walking drive, turns to drive and suspension, walking drive installs in the inboard center of wheel and can drive the wheel rotation, turn to drive one end and be connected with the frame rotation, the other end links to each other with the wheel is inboard, turns to and drives the wheel and deflect left or right, the suspension is a set of, and suspension one end and frame rotate to be connected, and the other end and the inboard swing joint of wheel, and the suspension can reciprocate according to the road conditions in the traveling.
In order to facilitate the realization of the motion simulation of each wheel, in a preferred embodiment of the utility model, a hub axle seat is fixed on the inner side of the wheel, the top end and the bottom end of the hub axle seat are respectively provided with a connecting rod perpendicular to the horizontal plane, the connecting rod is rotatably connected with a bearing assembly, two suspensions are respectively rotatably connected with one ends of the two bearing assemblies, and the bearing assembly is provided with an angle sensor.
Further, in order to facilitate the realization of wheel steering, one side of the hub axle seat is provided with a connecting block parallel to the horizontal plane, and one end of the steering driving is rotationally connected with the connecting block.
Preferably, the steering drive is a servo electric cylinder, the rear part of the servo electric cylinder is hinged with the side part of the frame, and the telescopic end of the front part of the servo electric cylinder is hinged with the connecting block and is provided with a torque sensor; the walking drive comprises a servo drive motor and a planetary reducer.
In order to adapt to uneven road surfaces, a shock absorber is arranged between the frame and the suspension, the rear part of the shock absorber is hinged with the side part of the frame, and the front elastic buffer end of the shock absorber is hinged with the suspension below.
In order to collect pavement data, the middle part of the frame is provided with extension bars extending to two sides, and a middle part collecting camera is fixed on the extension bars;
further, front collecting cameras and rear collecting cameras are respectively fixed at the front end and the rear end of the frame.
In order to facilitate the braking function of the wheel, an electric drum brake is arranged in the wheel.
The beneficial effects of the utility model are as follows: the special experimental trolley for the wheel test and the application method thereof are matched with the wheel, the walking drive, the steering drive, the suspension, the hub axle seat and the like, and are used for the test verification of the wheel test and the acquisition and calculation of various performances and data of the tested wheel, so that the service condition information of the wheel is mastered, and the data support and the safety guarantee are provided for the application of the special experimental trolley for the wheel test under complex road conditions.
Drawings
FIG. 1 is a schematic perspective view of a special experimental trolley for wheel testing;
FIG. 2 is a schematic view of the wheel mechanism of the present utility model;
fig. 3 is a schematic diagram of the control system of the present utility model.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the attached drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model. The directional terms referred to in the present utility model, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., refer only to the directions of the attached drawings. Accordingly, directional terminology is used to describe and understand the utility model and is not limiting of the utility model.
The special experiment trolley for wheel test shown in fig. 1 comprises a frame 1 and wheel mechanisms 4 arranged around the frame 1, wherein a whole main body frame of the frame 1 is formed by processing carbon fibers and is of a rectangular frame structure formed by splicing a plurality of square tubes, the corner parts of the frame are connected by embedded aluminum alloy, the front end of the frame 1 is provided with a lithium battery pack 3, the rear end of the frame is provided with an electric control system 2, meanwhile, the front, the rear, the left and the right sides of the frame 1 are respectively provided with two front acquisition cameras 7 and two rear acquisition cameras 8, the middle part of the frame 1 is provided with extension bars 5 extending towards the two sides, the two extension bars 5 are respectively provided with middle acquisition cameras 6, 8 acquisition cameras are designed in total, and the four wheel mechanisms 4 are independently driven by servo to realize independent steering, thereby meeting the requirements of parking power-losing braking, being remotely controlled, being capable of emergency power-off and being modularized as a whole.
Specifically, the wheel mechanism shown in fig. 2 is combined, the wheel mechanism comprises a wheel 401, a travelling drive, a steering drive and a suspension, wherein an electromagnetic drum brake 402 is arranged at the position of a hub connecting shaft of the wheel 401, a brake test in travelling is facilitated, the drum brake can be replaced by a disc brake, a hub shaft seat 403 is arranged at the center of the inner side of the wheel 401, a servo drive motor and a planetary reducer 404 are arranged in the hub shaft seat 403 and used for controlling the wheel 401 to rotate, a connecting rod 405 perpendicular to a horizontal plane is integrally formed at the top end and the bottom end of the hub shaft seat 403 respectively, a bearing assembly 408 is rotatably connected to the connecting rod 405, an angle sensor 406 is arranged on the bearing assembly 408 at the top, steering angle data can be accurately measured, an upper suspension 410 and a lower suspension 411 are hinged with one end of each of the two bearing assemblies 408, the other end of the upper suspension 410 and the other end of the lower suspension 411 are hinged with the side part of a frame 1, the upper suspension 410 and the lower suspension 411 are arranged in parallel and slightly inclined downwards, a front telescopic end of the servo electric cylinder is hinged with a connecting block 409, a moment sensor 407 is integrally formed at one side of the hub shaft seat 403, a front telescopic end of the servo electric cylinder is hinged with the connecting block 412, a front end of the electric shock absorber 412 is accurately hinged with the side part of the connecting block 1, and the shock absorber 412 is hinged with the side part of the front shock absorber 1, and the shock absorber 1 is hinged with the side part of the shock absorber 412.
The application method of the utility model is as follows:
the whole system takes an industrial personal computer in an electric control system 2 as a core, as shown in fig. 3, the functions of flow control, motion control, bus control, safety control and the like of the system are realized through the internal resources of the industrial personal computer, a human-computer interface mainly realizes data display and parameter input, a communication module on an EtherCAT bus realizes data acquisition and driving control, a remote control receiver hung on a 485 communication module receives and transmits data and instructions through a wireless and remote control transmitter, and a monitoring system and a camera realize wheel deformation image acquisition;
when the vehicle is stopped and is stationary, the servo driving motor and the planetary reducer 404 are provided with band-type brake, so that the trolley is ensured to be in a stationary state;
the electromagnetic drum brake 402 at the hub connecting shaft is convenient for braking in running;
each servo driving motor and planetary reducer 404 drive each wheel 401 to rotate, make the experimental trolley walk along the road, each acquisition camera acquires running speed, running acceleration, running mileage, steering angle (4 paths), steering speed (4 paths), battery power, running motor current (4 paths), wheel deformation image (8 paths) lamp and sends to the electric control system 2, the electric control system 2 is provided with a display screen, corresponding data can be realized, parameters of some parts to be tested can be selected through remote control interface buttons and rockers, the remote control receiving end stores data, the downloading is convenient, the industrial control computer acquires speed, acceleration and position values fed back by the drivers of the 4 servo driving motors, and calculates according to an algorithm to obtain the running speed, running acceleration and running mileage of the whole vehicle, acquires torque values through a moment sensor 407, calculates according to an algorithm to obtain the running torque values of the whole vehicle, detects steering angles of the 4 driving axles through an angle sensor 406, signals of the angle sensor 406 are input to an analog input module, and acquire the main controller after analog-digital conversion, and calculate, control and store the data;
when the experimental trolley needs to turn, each servo electric cylinder 413 stretches and contracts, the wheel 401 is pushed to deflect leftwards or rightwards around two suspensions through the hub axle seat 403, the left or right rotation is realized, the steering of the wheels can be respectively set, for example, the steering angle difference, the independent steering of the front two wheels, the non-steering of the rear two wheels or the four-wheel linkage steering can be set, wherein the steering angle is 0-40 degrees;
when the experiment trolley encounters a road surface with uneven height, each suspension is turned up and down to realize the up-and-down movement of each wheel 401, and the shock absorber 412 plays a role in shock absorption;
the wheel deformation image acquisition is realized through 8 acquisition cameras arranged front and back.
It should be noted that, the present utility model is not related to the part that is the same as or can be implemented by the prior art.
In addition, in the description of embodiments of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "configured," "provided," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (9)
1. The utility model provides a special experiment dolly of wheel test, includes the frame and sets up in the wheel mechanism around the frame, its characterized in that: the electric control system and the acquisition camera are fixed on the frame, the wheel mechanism comprises wheels, a traveling drive, a steering drive and a suspension, the traveling drive is arranged at the center of the inner side of the wheels and can drive the wheels to rotate, one end of the steering drive is rotationally connected with the frame, the other end of the steering drive is connected with the inner side of the wheels, the steering drive can drive the wheels to deflect leftwards or rightwards, the suspension is a group, one end of the suspension is rotationally connected with the frame, the other end of the suspension is movably connected with the inner side of the wheels, and the suspension can move up and down.
2. The wheel test dedicated laboratory trolley of claim 1, wherein: the wheel is characterized in that a hub axle seat is fixed on the inner side of the wheel, connecting rods perpendicular to the horizontal plane are respectively arranged at the top end and the bottom end of the hub axle seat, a bearing assembly is rotationally connected to the connecting rods, two suspensions are rotationally connected with one ends of the two bearing assemblies respectively, and an angle sensor is arranged on the bearing assembly.
3. The wheel test dedicated laboratory trolley of claim 2, wherein: one side of the hub axle seat is provided with a connecting block parallel to the horizontal plane, and one end of the steering driving end is rotationally connected with the connecting block.
4. A wheel test specific laboratory trolley according to claim 3, characterized in that: the steering drive is a servo electric cylinder, the rear part of the servo electric cylinder is hinged with the side part of the frame, and the telescopic end of the front part of the servo electric cylinder is hinged with the connecting block and is provided with a torque sensor.
5. A wheel test specific laboratory trolley according to claim 3, characterized in that: and a shock absorber is arranged between the frame and the suspension, the rear part of the shock absorber is hinged with the side part of the frame, and the front elastic buffer end of the shock absorber is hinged with the suspension below.
6. A wheel test specific laboratory trolley according to claim 3, characterized in that: the middle part of the frame is provided with extension bars extending to two sides, and a middle part acquisition camera is fixed on the extension bars.
7. The wheel test dedicated laboratory cart of claim 6, wherein: front collecting cameras and rear collecting cameras are respectively fixed at the front end and the rear end of the frame.
8. A wheel test specific laboratory trolley according to claim 3, characterized in that: the walking drive comprises a servo drive motor and a planetary reducer.
9. A wheel test specific laboratory trolley according to claim 3, characterized in that: an electric drum brake is arranged in the wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322434324.3U CN220794630U (en) | 2023-09-07 | 2023-09-07 | Special experiment trolley for wheel test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322434324.3U CN220794630U (en) | 2023-09-07 | 2023-09-07 | Special experiment trolley for wheel test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220794630U true CN220794630U (en) | 2024-04-16 |
Family
ID=90637050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322434324.3U Active CN220794630U (en) | 2023-09-07 | 2023-09-07 | Special experiment trolley for wheel test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220794630U (en) |
-
2023
- 2023-09-07 CN CN202322434324.3U patent/CN220794630U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Special experimental car for wheel testing Granted publication date: 20240416 Pledgee: China Construction Bank Corporation Changzhou Xinbei sub branch Pledgor: Changzhou Yongping Machinery Manufacturing Co.,Ltd. Registration number: Y2024980032549 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |