CN213481717U - Fatigue resistance testing system for electric vehicle frame - Google Patents
Fatigue resistance testing system for electric vehicle frame Download PDFInfo
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- CN213481717U CN213481717U CN202022868236.0U CN202022868236U CN213481717U CN 213481717 U CN213481717 U CN 213481717U CN 202022868236 U CN202022868236 U CN 202022868236U CN 213481717 U CN213481717 U CN 213481717U
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Abstract
The utility model discloses an electric vehicle frame fatigue resistance test system, which comprises a test table board, wherein both ends of the test table board are provided with vibrating devices; the vibration device comprises a support frame installed on the test table board, a vibration piece moving vertically is arranged on the support frame, a frame connecting piece is arranged above the vibration piece, a touch pressing plate is arranged below the vibration piece, the touch pressing plate is in transmission connection with an eccentric wheel arranged below the touch pressing plate, and the eccentric wheel is driven by a motor to rotate. A plurality of eccentric wheels are arranged below the touch pressing plate in parallel, the radiuses of the eccentric wheels are different, and the eccentric wheels are driven by independent motors to rotate. The utility model discloses can produce complicated vibration effect, simulate real road surface vibration condition better to improve the reliability of test result.
Description
Technical Field
The utility model relates to an electric motor car field especially relates to fatigue test system is able to bear or endure to electric motor car frame.
Background
The fatigue resistance test of the electric vehicle frame is an important experimental project for detecting the quality of the electric vehicle, the vibration effect generated in the existing test device is single, the complex road surface vibration condition cannot be simulated, the reliability of the test result is influenced, and therefore the fatigue resistance test system of the electric vehicle frame with the more complex vibration effect is necessary to be provided.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the not enough of existence among the prior art, the utility model provides an electric motor car frame fatigue test system can produce complicated vibration effect, simulates true road surface vibration condition better to improve the reliability of test result.
The technical scheme is as follows: in order to achieve the purpose, the fatigue resistance testing system for the frame of the electric vehicle comprises a testing table board, wherein two ends of the testing table board are respectively provided with a vibrating device; the vibration device comprises a support frame installed on the test table board, a vibration piece moving vertically is arranged on the support frame, a frame connecting piece is arranged above the vibration piece, a touch pressing plate is arranged below the vibration piece, the touch pressing plate is in transmission connection with an eccentric wheel arranged below the touch pressing plate, and the eccentric wheel is driven by a motor to rotate.
Furthermore, a plurality of eccentric wheels are arranged below the touch pressing plate in parallel, the radiuses of the eccentric wheels are different, and the eccentric wheels are driven by independent motors to rotate.
Furthermore, the highest points of the wheel surfaces of a plurality of eccentric wheels in the same vibration device in the rotation process are the same, and the sum of the radius of the eccentric wheel with the smallest radius and the eccentricity of the eccentric wheel is larger than the difference between the radius of the eccentric wheel with the largest radius and the eccentricity of the eccentric wheel; the rotating speeds of the motors corresponding to the eccentric wheels in the same vibrating device are different.
Furthermore, the number of the eccentric wheels arranged in the vibration devices at the two ends is different.
Furthermore, the number of the eccentric wheels in the vibrating devices at two ends is two and three respectively.
Further, a sliding rail is arranged on the test table top, a sliding plate block is arranged on the sliding rail in a sliding mode, the vibrating device at one end is installed on the sliding plate block, and the sliding plate block slides to adjust the distance between the vibrating devices at the two ends.
Furthermore, a lifting mechanism is arranged on the test table board, and a vibration device at one end of the lifting mechanism is arranged on the lifting mechanism so as to adjust the relative heights of the vibration devices at the two ends.
Has the advantages that: the utility model discloses an electric motor car frame fatigue test system installs the frame on the vibrating piece through the frame connecting piece to drive the vertical motion of vibrating piece through a plurality of eccentric wheels, the radius diverse of a plurality of eccentric wheels, a plurality of eccentric wheels are respectively by independent motor drive, and the rotational speed diverse of each motor, thereby produce complicated vibration effect, simulate true road conditions better, with the reliability that improves the test result.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a lifting mechanism
FIG. 3 is a schematic diagram of the transmission between the touch plate and a plurality of eccentric wheels.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The fatigue resistance testing system for the electric vehicle frame as shown in the attached fig. 1 to 3 comprises a testing table board 1, wherein two ends of the testing table board 1 are respectively provided with a vibrating device 2. The vibration device 2 comprises a support frame 3 installed on the test table board 1, a vertical vibration hole is formed in the support frame 3, a vibration piece 4 moving vertically is arranged on the support frame 3, and the vibration piece 4 is slidably sleeved in the vibration hole. The vibration part 4 is provided with a frame connecting piece 5 above, an electric vehicle frame to be tested is connected and installed on the vibration part 4 through the frame connecting piece 5, the frame connecting piece 5 is in the prior art, the specific shape of the frame connecting piece 5 can be correspondingly changed according to the model of the vehicle frame, and the frame connecting pieces 5 at two ends are generally respectively connected with a front flat fork and a rear shock absorber of the vehicle frame. The below of vibrating part 4 is provided with touches clamp plate 6, touches clamp plate 6 and is the plate body that the level set up, touch clamp plate 6 and setting up and be connected touching the transmission of eccentric wheel 7 of clamp plate 6 below, promptly touch the lower face of clamp plate 6 and laminate mutually with the wheel face of eccentric wheel 7, eccentric wheel 7 is rotated by the drive of motor 8, and when eccentric wheel 7 rotated, eccentric wheel 7 drove the vertical reciprocating motion of frame through touching clamp plate 6, simulation road surface vibration.
The vibration effect generated by the single eccentric wheel 7 is single, and the vibration simulation effect on the real road condition is not good, so that a plurality of eccentric wheels 7 are arranged below the touch pressing plate 6 in parallel. The radiuses of the eccentrics 7 are different, and the eccentrics 7 are driven to rotate by a single motor 8, so that more complex vibration effects are generated by a plurality of eccentrics 7.
The horizontal height of the highest point to which the wheel surface of a plurality of eccentric wheels 7 in the same vibrating device 2 can move in the rotating process is the same, as shown in the attached figure 3. In a plurality of eccentric wheels 7 in the same vibration device 2, the sum of the radius of the eccentric wheel 7 with the smallest radius and the own eccentricity is larger than the difference between the radius of the eccentric wheel 7 with the largest radius and the own eccentricity. The rotating speeds of the motors 8 corresponding to the eccentric wheels 7 in the same vibrating device 2 are different. Through the arrangement, a plurality of eccentric wheels 7 in the same vibrating device 2 have independent time points which are mutually pressed with the touch pressing plate 6, so that the eccentric wheels 7 can be mutually matched to generate a complex vibrating effect, and the real road condition can be better simulated.
The number of the eccentric wheels 7 arranged in the vibrating devices 2 at the two ends is different, so that the front end and the rear end of the frame are different in vibration effect, and the real road condition is better simulated.
The number of the eccentric wheels 7 in the vibration device 2 at the two ends is two and three respectively, so that the structure of the system is simplified on the premise of ensuring that the front end and the rear end of the frame are subjected to different vibration effects.
The test table is characterized in that a sliding rail 9 is arranged on the test table top 1, a sliding plate block 10 is arranged on the sliding rail 9 in a sliding mode, the vibration device 2 at one end is installed on the sliding plate block 10, and the sliding plate block 10 slides to adjust the distance between the vibration devices 2 at two ends, so that the test table is suitable for frames with different lengths. Fasteners similar to fastening bolts are arranged between the sliding plate 10 and the sliding rail 9 to fix the sliding plate 10 on the test table 1.
The test table is characterized in that a lifting mechanism 11 is arranged on the test table surface 1, the vibrating device 2 at one end is installed on the lifting mechanism 11, the lifting mechanism 11 is driven by a hydraulic cylinder or a motor and drives the vibrating device 2 at one end to vertically move so as to adjust the relative heights of the vibrating devices 2 at two ends, and therefore the test table is suitable for frames of different models.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (7)
1. Electric motor car frame is able to bear or endure fatigue test system, its characterized in that: the test table comprises a test table top (1), wherein two ends of the test table top (1) are respectively provided with a vibration device (2); vibrating device (2) is including installing support frame (3) on test table face (1), be provided with vertical motion's vibration piece (4) on support frame (3), the top of vibration piece (4) is provided with frame connection spare (5), the below of vibration piece (4) is provided with touches clamp plate (6), touch clamp plate (6) and set up and be connected touching eccentric wheel (7) transmission of clamp plate (6) below, eccentric wheel (7) are rotated by motor (8) drive.
2. The electric vehicle frame fatigue-resistance testing system of claim 1, characterized in that: a plurality of eccentric wheels (7) are arranged below the touch pressure plate (6) in parallel, the radiuses of the eccentric wheels (7) are different, and the eccentric wheels (7) are driven by a single motor (8) to rotate.
3. The electric vehicle frame fatigue-resistance testing system of claim 2, characterized in that: the highest points of the wheel surfaces of a plurality of eccentric wheels (7) in the same vibration device (2) are the same in the rotating process, and the sum of the radius of the eccentric wheel (7) with the smallest radius and the own eccentric distance is larger than the difference between the radius of the eccentric wheel (7) with the largest radius and the own eccentric distance; the rotating speeds of the motors (8) corresponding to the eccentric wheels (7) in the same vibrating device (2) are different.
4. The electric vehicle frame fatigue test system of claim 3, characterized in that: the number of the eccentric wheels (7) arranged in the vibrating devices (2) at the two ends is different.
5. The electric vehicle frame fatigue-resistance testing system of claim 4, characterized in that: the number of the eccentric wheels (7) in the vibrating devices (2) at two ends is two and three respectively.
6. The electric vehicle frame fatigue-resistance testing system of claim 1, characterized in that: the test table is characterized in that a sliding rail (9) is arranged on the test table top (1), a sliding plate block (10) is arranged on the sliding rail (9) in a sliding mode, the vibrating device (2) at one end is installed on the sliding plate block (10), and the sliding plate block (10) slides to adjust the distance between the vibrating devices (2) at two ends.
7. The electric vehicle frame fatigue-resistance testing system of claim 1, characterized in that: the test table is characterized in that a lifting mechanism (11) is arranged on the test table top (1), and a vibration device (2) at one end is arranged on the lifting mechanism (11) so as to adjust the relative heights of the vibration devices (2) at two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022868236.0U CN213481717U (en) | 2020-12-04 | 2020-12-04 | Fatigue resistance testing system for electric vehicle frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022868236.0U CN213481717U (en) | 2020-12-04 | 2020-12-04 | Fatigue resistance testing system for electric vehicle frame |
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| Publication Number | Publication Date |
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| CN213481717U true CN213481717U (en) | 2021-06-18 |
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| CN202022868236.0U Active CN213481717U (en) | 2020-12-04 | 2020-12-04 | Fatigue resistance testing system for electric vehicle frame |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117091788A (en) * | 2023-10-18 | 2023-11-21 | 江苏速利达机车有限公司 | Frame vibration test bench |
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2020
- 2020-12-04 CN CN202022868236.0U patent/CN213481717U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117091788A (en) * | 2023-10-18 | 2023-11-21 | 江苏速利达机车有限公司 | Frame vibration test bench |
| CN117091788B (en) * | 2023-10-18 | 2023-12-22 | 江苏速利达机车有限公司 | Frame vibration test bench |
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