CN212585886U - Chassis dynamometer for vehicle test - Google Patents
Chassis dynamometer for vehicle test Download PDFInfo
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- CN212585886U CN212585886U CN202021507982.0U CN202021507982U CN212585886U CN 212585886 U CN212585886 U CN 212585886U CN 202021507982 U CN202021507982 U CN 202021507982U CN 212585886 U CN212585886 U CN 212585886U
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- axial force
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Abstract
The utility model provides a chassis dynamometer for vehicle test, including the wheel hub adapter, the wheel hub adapter is connected with the connecting shaft, the connecting shaft is connected with torque sensor, torque sensor is connected with the motor, wherein, the outside of connecting shaft is equipped with axial force isolating device, axial force isolating device is connected with the motor flange, the other end of the motor flange is connected with the motor, the axial force isolating device is fixed on the equipment support, the bottom of the equipment support is equipped with the gyro wheel; the construction method is simple in structure, low in cost, strong in universality and short in construction period; the test device not only can meet various performance tests and endurance fatigue tests of vehicles and parts, but also can perform accurate simulation on the steering system of the vehicle.
Description
Technical Field
The application relates to the technical field of automobile testing, in particular to a chassis dynamometer for vehicle testing.
Background
The chassis dynamometer is mainly used for providing simulated road condition information; the traditional chassis dynamometer, capital construction and other related supporting facilities are expensive, the construction period is long, and the improvement of the overall vehicle performance research and development level of the society is not facilitated, particularly for small-sized vehicle enterprises, research and development institutions of colleges and universities, social authentication centers and other institutions with scarce funds; moreover, with the continuous development of the automation degree of the automobile, the functions of advanced assistant driving and automatic driving are applied more and more, and the traditional chassis dynamometer has many limitations on testing, for example, the vehicle steering cannot be simulated, which is very unfavorable for the further development of the related technology.
Therefore, a new technical solution is needed to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the application provides a chassis dynamometer for vehicle testing, in particular to a coupling type chassis dynamometer for vehicle testing, and the utility model has the advantages of simple structure, low cost, strong universality and short construction period; the test device not only can meet various performance tests and endurance fatigue tests of vehicles and parts, but also can perform accurate simulation on the steering system of the vehicle.
A chassis dynamometer for vehicle testing comprises a hub adapter, wherein the hub adapter is connected with a connecting shaft, the connecting shaft is connected with a torque sensor through a coupler, the torque sensor is connected with a motor through the coupler, an axial force isolation device is arranged on the outer side of the hub adapter and connected with a motor flange, the other end of the motor flange is connected with the motor, the axial force isolation device is fixed on an equipment support, and a roller is arranged at the bottom of the equipment support; the torque sensor and the connecting shaft are arranged in the axial force isolating device.
The equipment support comprises a front support, the front support is connected with a rear support through a pin shaft, the front support comprises a stand column, a shock absorber is connected to the stand column, the other end of the shock absorber is connected with the rear support, a front roller is arranged at the bottom of the front support, and a rear roller is arranged at the bottom of the rear support.
The axial force isolation device comprises an isolation support, the connecting shaft is arranged inside the isolation support, the hub adapter is arranged outside the isolation support, and a pair of bearings is arranged between the connecting shaft and the isolation support.
An end cover is arranged at one end of the isolation support.
And a sealing device is arranged between the end cover and the connecting shaft.
The front idler wheel is a directional wheel, and the rear idler wheel is a universal wheel.
And the connecting shaft is provided with a locking nut.
Due to the adoption of the technical scheme, compared with the prior art, the chassis dynamometer for vehicle testing is simple in structure, low in cost and short in construction period; the test bed can meet various performance tests and endurance fatigue tests of vehicles and parts; and the steering system of the vehicle can be accurately simulated.
Drawings
FIG. 1 is a schematic structural diagram of the present application;
FIG. 2 is a schematic structural view of the equipment rack of the present application;
FIG. 3 is a schematic diagram of the internal structure of the present application;
reference numerals:
1. hub adapter 2, torque sensor 3, shaft coupling 4, motor
5. Axial force isolation device 6, motor flange 7, equipment support 8 and front support
9. Pin shaft 10, rear support 11, upright post 12, shock absorber 13 and first cross rod
14. Second cross bar 15, connecting rod 16, first upright post 17 and second upright post
18. Third cross bar 19, fourth cross bar 20, first shock absorber 21 and second shock absorber
22. Front roller 23, rear roller 24, reinforcing rod 25 and isolation support
26. Bearing 27, lock nut 28, end cover 29, sealing device 30, connecting shaft.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It should be noted that the embodiments described herein are only for illustrating and explaining the present invention, and are not to be construed as limiting the present invention.
As shown in fig. 1, 2 and 3, the chassis dynamometer for vehicle testing comprises a hub adapter 1, wherein the hub adapter 1 is connected with a connecting shaft 30, and the hub adapter 1 and the connecting shaft 30 can be fixed in a screw connection mode, a welding mode and the like; the connecting shaft 30 is connected with the torque sensor 2 through a coupler, the torque sensor 2 is connected with the motor 4 through a coupler 3, an axial force isolating device 5 is arranged on the outer side of the connecting shaft 30, and the hub adapter 1 is arranged on the outer side of the axial force isolating device 5 and used for being connected with a vehicle to be tested; the axial force isolation device 5 is connected with the motor flange 6, the axial force isolation device 5 is connected with the motor flange 6 through connecting modes such as screws, the other end of the motor flange 6 is connected with a stator of the motor 4, the motor flange 6 is connected with the stator of the motor 4 through connecting modes such as screws, and a rotor of the motor 4 is connected with the connecting shaft 30 through the coupler 3; in the above description, the connecting shaft 30 and the torque sensor 2 are disposed inside the axial force isolation device 5, the axial force isolation device 5 is fixed on the equipment support 7, and the bottom of the equipment support 7 is provided with the roller.
The hub adapter 1 is mainly used for replacing wheels, is connected with a test vehicle, is used for being connected with a vehicle transmission shaft or a related transmission part, transmitting power or resistance, and can also be used for supporting the test vehicle, and the hub adapter 1 needs to be customized due to different test vehicles; the torque sensor 2 is used for measuring the real output torque of the motor 4, a closed-loop control is formed by comparing the real output torque with a theoretical loading force, the running resistance of a test vehicle is really simulated, and two sides of the torque sensor 2 are respectively connected with a coupler 3; the coupler 3 is used for connecting the torque sensor 2 with the motor 4, overcoming the problem of non-coaxial connection shafts, and avoiding the damage of parts, the torque sensor 2 is only a torque sensor in the prior art, and the specific model is not limited in the utility model, for example, the torque sensor is JN-DN3 type torque sensor in Jinnuo, the torque sensor 2 is connected with a display device for displaying the output torque of the motor, and the display device can display by adopting an MCK-Z-I intelligent instrument, an MCK-DN intelligent instrument and the like; the axial force isolation device 5 is mainly used for overcoming the axial force to test equipment generated in the steering test or other test processes of a test vehicle, and avoiding damaging the torque sensor 2 and the motor 4 or interfering the measurement of the torque sensor 2, the axial force isolation device 5 is arranged on the outer side of the connecting shaft 30, the bottom of the axial force isolation device is fixedly connected with the equipment support 7, the hub adapter 1 is arranged on the outer side of one end of the axial force isolation device 5, and the other end of the axial force isolation device 5 is connected with the motor flange 6; the motor flange 6 is used for connecting the axial force isolation device 5 and the motor 4, and the motor 4 is in a cantilever state; the motor 4 is used for simulating the resistance of roads, wind, a transmission system and the like to the vehicle in the vehicle testing process, loading the tested vehicle, carrying out various performance tests and fatigue tests on the vehicle, and carrying out experiments in aspects of vehicle braking force and the like by simulating to a certain degree or full inertia according to the power of the motor 4; the equipment support 7 is a mounting base of the axial force isolation device 5, the torque sensor 2, the coupler 3, the motor 4 and other parts, and the axial force isolation device 5 is fixed on the equipment support 7.
As an optimal solution, it is concrete, equipment support 7 includes fore-stock 8, fore-stock 8 is connected with after-poppet 10 through round pin axle 9, fore-stock 8 includes stand 11, be connected with bumper shock absorber 12 on the stand 11, the preferred oil gas bumper shock absorber of bumper shock absorber 12 adopts the air-fuel mixture bumper shock absorber among the prior art all can, the utility model discloses do not concrete injecing here, if: the oil-gas mixed shock absorber is 9571-ATV 2019; the other end of the shock absorber 12 is connected with the rear bracket 10; more specifically, the front support 8 includes a first cross bar 13 and a second cross bar 14, a connecting rod 15 is arranged between the first cross bar 13 and the second cross bar 14, the first cross bar 13 and the connecting rod 15, and the second cross bar 14 and the connecting rod 15 are connected by means of screw thread connection, welding, etc., and the specific connection mode is not limited in the present invention, and the technician can select the specific connection mode according to the specific situation, the first cross bar 13 is provided with a first upright post 16, the second cross bar 14 is provided with a second upright post 17, and similarly, the first upright post 16 and the first cross bar 13, and the second upright post 17 and the second cross bar 14 can be connected by means of screw thread connection, welding, etc.; the rear support 10 comprises a third cross bar 18 and a fourth cross bar 19, one end of the third cross bar 18 is connected with the first cross bar 13 through a pin shaft 9, and one end of the fourth cross bar 19 is connected with the second cross bar 14 through a pin shaft 9; the third cross bar 18 is hinged with a first shock absorber 20, the other end of the first shock absorber 20 is hinged with the first upright post 16, the fourth cross bar 19 is hinged with a second shock absorber 21, the other end of the second shock absorber 21 is hinged with the second upright post 17, the shock absorber 12 is used for overcoming the vibration of the motor 4 in the test process and avoiding the damage of the motor 4, the equipment support 7 and other related parts, and the first shock absorber 20 and the second shock absorber 21 are of the same type and are respectively connected with the front support 8 and the rear support 10 in the same form; according to the above description, the shock absorber 12 and the cross bars (including the first cross bar 13, the second cross bar 14) and the upright post 11 of the front support 8 form a triangular relationship, but not only limited to the triangular relationship, but also can be adjusted according to specific conditions, for example, an installation rod parallel to the cross bars is installed on the first upright post, one end of the shock absorber 12 is connected with the installation rod, so that the shock absorber 12 is parallel to the upright post 11, thereby forming a rectangular structure, and specific technicians can select the shock absorber according to specific conditions, which is not described in detail herein; the following triangle is taken as an example, in the actual operation process, a wheel has a camber or an inclination, if the equipment support is rigid, after the equipment is installed, a huge bending moment can be generated for a vehicle transmission shaft and a hub adapter 1, and then equipment or a vehicle is damaged.
The other ends of the first cross bar 13 and the second cross bar 14 are respectively provided with a front roller 22, and the other ends of the third cross bar 18 and the fourth cross bar 19 are respectively provided with a rear roller 23. More preferably, in order to improve stability and strength, reinforcing rods 24 are arranged between the first cross rod 13 and the connecting rod 15 and between the second cross rod 14 and the connecting rod 15. More preferably, the front roller 22 is a directional wheel, and the rear roller 23 is a universal wheel, so as to avoid excessive ground resistance generated when the test vehicle turns.
As a preferable scheme, in particular, the axial force isolation device 5 comprises an isolation support 25, the isolation support 25 is a mounting base of the axial force isolation device 5 and other constituent elements and the motor 4, one end of the isolation support 25 is provided with a mounting hole,
the connecting shaft 30 is arranged inside the isolation support 25, one end of the connecting shaft 30 extends out of the mounting hole to be connected with the hub adapter 1, so that the hub adapter is arranged outside the isolation support 25, and the hub adapter 1 is used for connecting a test vehicle; the base of the isolation support 25 is fixedly connected with the connecting rod 15, such as welding, riveting, threaded connection and the like; a pair of bearings 26, preferably tapered roller bearings, are disposed between the isolation support 24 and the connecting shaft 30, the tapered roller bearings are used for eliminating the axial force generated in the test process and protecting the motor 4 and the torque sensor 2, and the bearings 26 can be a combination of other types of bearings capable of bearing both the radial force and the axial force.
More preferably, in order to further axially fix the connecting shaft 30 and prevent the connecting shaft 30 from moving, a lock nut 27 is arranged on the connecting shaft 30 to axially fix the connecting shaft 30; the form of the locking nut 27 is not limited, and other structures, such as a collar, a shoulder and the like, may also be adopted, which belong to the common general knowledge in the art and are not described in detail herein.
More preferably, an end cover 28 is arranged at one end, close to the test vehicle, of the isolation support 25, the end cover 28 is convenient to detach, and is used for isolating the bearing cavity, preventing dust, preventing more dust, impurities and the like from falling onto the bearing 26, preventing the bearing 26 and the lubricating grease from being polluted and further damaged, prolonging the service life of the bearing 26, and further, the end cover 28 also constitutes an installation carrier of the sealing device.
More preferably, a sealing device 29 is disposed between the end cover 28 and the hub adapter 1, and the sealing device is a sealing device in the prior art, and the present invention is not limited specifically, for example: v-rings, labyrinth seals, felt seals, etc., said sealing means 29 being further dust-tight, avoiding the bearing 26 and the grease from being contaminated and thus damaged.
In conclusion, due to the adoption of the technical scheme, compared with the prior art, the chassis dynamometer for vehicle testing is simple in structure, low in cost and short in construction period, a special laboratory is not required to be constructed, and the chassis dynamometer can be used for normally leveling the ground; the test bed can meet various performance tests and endurance fatigue tests of vehicles and parts; can also carry out accurate simulation to the a steering system of vehicle, in addition, the utility model discloses be convenient for integrate other vehicle systems, like autopilot test module.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are included in the scope of protection of the present invention.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present application will not be described separately.
In addition, any combination of the various embodiments of the present application can be made, and the present application should be considered as disclosed in the present application as long as the combination does not depart from the spirit of the present application.
Claims (8)
1. The chassis dynamometer for vehicle testing is characterized by comprising a hub adapter, wherein the hub adapter is connected with a connecting shaft, the connecting shaft is connected with a torque sensor, the torque sensor is connected with a motor, an axial force isolation device is arranged on the outer side of the connecting shaft and connected with a motor flange, the other end of the motor flange is connected with the motor, the axial force isolation device is fixed on an equipment support, and a roller is arranged at the bottom of the equipment support.
2. The chassis dynamometer for vehicle testing according to claim 1, wherein the equipment support comprises a front support, the front support is connected with a rear support through a pin, the front support comprises a column, a shock absorber is connected to the column, the other end of the shock absorber is connected with the rear support, a front roller is arranged at the bottom of the front support, and a rear roller is arranged at the bottom of the rear support.
3. The chassis dynamometer for vehicle testing of claim 2, wherein the axial force isolation device includes an isolation mount, the connecting shaft is disposed inside the isolation mount, the hub adapter is disposed outside the isolation mount, and a pair of bearings is disposed between the connecting shaft and the isolation mount.
4. The chassis dynamometer for vehicle testing of claim 3, wherein an end cap is disposed at one end of the isolation mount.
5. The chassis dynamometer for vehicle testing according to claim 4, wherein a sealing device is disposed between the end cover and the connecting shaft.
6. The chassis dynamometer for vehicle testing according to any one of claims 2-5, wherein the front rollers are directional wheels and the rear rollers are universal wheels.
7. The chassis dynamometer for vehicle testing according to any one of claims 1 through 5, wherein a lock nut is provided on the connection shaft.
8. The chassis dynamometer for vehicle testing according to claim 6, wherein a lock nut is disposed on the connection shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021507982.0U CN212585886U (en) | 2020-07-27 | 2020-07-27 | Chassis dynamometer for vehicle test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021507982.0U CN212585886U (en) | 2020-07-27 | 2020-07-27 | Chassis dynamometer for vehicle test |
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| Publication Number | Publication Date |
|---|---|
| CN212585886U true CN212585886U (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021507982.0U Active CN212585886U (en) | 2020-07-27 | 2020-07-27 | Chassis dynamometer for vehicle test |
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| Country | Link |
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| CN (1) | CN212585886U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114152375A (en) * | 2021-11-30 | 2022-03-08 | 西安航天动力研究所 | Hydraulic dynamometer with axial force measuring function |
| CN114295269A (en) * | 2021-11-26 | 2022-04-08 | 合众新能源汽车有限公司 | Shaft coupling type intelligent driving dynamometer |
-
2020
- 2020-07-27 CN CN202021507982.0U patent/CN212585886U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295269A (en) * | 2021-11-26 | 2022-04-08 | 合众新能源汽车有限公司 | Shaft coupling type intelligent driving dynamometer |
| CN114295269B (en) * | 2021-11-26 | 2023-10-24 | 合众新能源汽车股份有限公司 | Shaft coupling type intelligent driving dynamometer |
| CN114152375A (en) * | 2021-11-30 | 2022-03-08 | 西安航天动力研究所 | Hydraulic dynamometer with axial force measuring function |
| CN114152375B (en) * | 2021-11-30 | 2024-02-27 | 西安航天动力研究所 | Hydraulic dynamometer with axial force measurement function |
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