CN110940478B - New energy automobile coordinated type bidirectional vibration fender comprehensive testing equipment - Google Patents
New energy automobile coordinated type bidirectional vibration fender comprehensive testing equipment Download PDFInfo
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- CN110940478B CN110940478B CN201911276688.5A CN201911276688A CN110940478B CN 110940478 B CN110940478 B CN 110940478B CN 201911276688 A CN201911276688 A CN 201911276688A CN 110940478 B CN110940478 B CN 110940478B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention relates to the technical field of testing machines, in particular to linkage type comprehensive detection equipment for a bidirectional vibration fender of a new energy automobile, wherein a water storage tank is arranged at the bottom of a water throwing wheel; the water storage tank is provided with a nozzle. According to the invention, the rotary motion of the first motor is converted into reciprocating linear motion in the horizontal and vertical directions through the crankshaft, so that the vibration condition of the vehicle is better simulated; the setting of getting rid of the water wheels can simulate the impact of the water smoke that the rainy day wheel was rolled up to wheel casing and fender, and adjustable flow water spray nozzle can be through adjusting the water spray flow size, and the test condition is more nimble.
Description
Technical Field
The invention relates to the technical field of testing machines, in particular to linkage type comprehensive detection equipment for a bidirectional vibration fender of a new energy automobile.
Background
The mudguard is a blocking device which is arranged at the lower edge of a wheel cover of an automobile and prevents muddy water rolled up by the wheel from splashing in rainy days to influence the sight of a rear automobile. For the automobile mudguard, the most common failure mode is that the installation position of the mudguard and the wheel cover is loosened, even damaged and fallen off in the long-term running and vibration process of the automobile. If the mudguard falls off at the high-speed state of the vehicle, the driving safety of the rear vehicle is seriously threatened, noise is generated slightly to influence the NVH performance of the vehicle, and the rear vehicle is damaged due to the collision with the rear vehicle seriously to cause a serious traffic accident. At present, a test solution specially aiming at evaluation of the anti-vibration performance of the fender is not provided, and a patent with the patent number of 201910029969.4 provides simple fender vibration test equipment, but the simple fender vibration test equipment has the limitations that test conditions are single, vibration in the vertical direction can only be realized, vibration in the horizontal direction during acceleration and braking of a vehicle cannot be simulated, and the influence of muddy water splashing on the fender cannot be simulated.
Disclosure of Invention
The invention aims to provide a new energy automobile linkage type bidirectional vibration fender comprehensive detection device aiming at the defects in the prior art.
The purpose of the invention is realized by the following technical scheme: a linkage type comprehensive detection device for a bidirectional vibration fender of a new energy automobile comprises a base, a slide rail arranged at the top of the base, a slide block connected with the slide rail in a sliding manner, a bottom plate connected with the slide block, a guide shaft arranged on the bottom plate, a linear bearing connected with the guide shaft in a sliding manner and a vibration frame connected with the linear bearing;
water throwing wheels are arranged on two sides of the base; a rotation driving mechanism for driving the water throwing wheel to rotate is arranged in the base;
the two sides of the vibration frame are connected with wheel covers arranged on the periphery of the water throwing wheel; two ends of the wheel cover are provided with mud guards; the top of the base is provided with a linkage type bidirectional driving mechanism which is used for driving the bottom plate to move along the sliding rail and driving the vibration frame to move along the guide shaft.
The linkage type bidirectional driving mechanism further comprises a fixed seat arranged at the top of the base, a first motor arranged on the fixed seat and a crankshaft connected with the output end of the first motor;
the crankshaft comprises a first crank arm, a second crank arm, and a third crank arm; a first rotating shaft is arranged in the center of one end of the first crank arm; a first journal is arranged between the other end of the first crank arm and one end of the second crank arm; a second journal is arranged between the other end of the second crank arm and one end of the third crank arm; a second rotating shaft is arranged in the center of the other end of the third crank arm; the output end of the first motor is connected with the first rotating shaft; the second rotating shaft is rotatably connected with the fixed seat;
the linkage type bidirectional driving mechanism also comprises a first connecting rod and a second connecting rod; one end of the first connecting rod is sleeved on the first journal; the other end of the first connecting rod is hinged with the vibration frame; one end of the second connecting rod is sleeved on the second journal; the other end of the second connecting rod is hinged with the bottom plate.
The invention is further provided that the top of the vibration frame is provided with a beam; the other end of the first connecting rod is hinged with the cross beam.
The invention is further arranged that the eccentricity of the first journal is the same as the eccentricity of the second journal, and the phase angle between the first journal and the second journal is 90 degrees.
The invention is further provided that the rotation driving mechanism comprises a second motor arranged in the base, a first belt wheel connected with the output end of the second motor, a second belt wheel linked with the first belt wheel, a belt sleeved between the first belt wheel and the second belt wheel and a wheel shaft coaxially driven with the second belt wheel; and two ends of the wheel shaft are respectively connected with the two water throwing wheels.
The invention is further provided that a mounting bracket is arranged between the wheel cover and the vibration frame; the mounting bracket is detachably connected with the vibration frame through a nut.
The invention is further provided that the number of the slide rails is two, and the two slide rails are symmetrically arranged on two sides of the top of the base.
The invention is further provided that the number of the guide shafts is four, and the four guide shafts are arranged around the bottom plate at equal intervals.
The invention is further provided that the bottom of the water throwing wheel is provided with a water storage tank; the water storage tank is provided with a nozzle.
The invention is further provided that the nozzle is an adjustable flow water nozzle.
The invention has the beneficial effects that: 1. the invention is arranged symmetrically left and right, and the wheel covers and the mud guards at the left end and the right end are tested simultaneously so as to compare left and right differences; 2. the rotary motion of the first motor is converted into reciprocating linear motion in the horizontal direction and the vertical direction through the crankshaft, so that bidirectional vibration with consistent frequency and amplitude is obtained, and the vibration condition of the vehicle is better simulated; 3. the arrangement of the water throwing wheel can simulate the impact of water mist rolled up by wheels on a wheel cover and a mudguard in rainy days, and the vibration resistance and NVH (noise, vibration and harshness) performance of the wheel cover and the mudguard can be evaluated more comprehensively; 4. the adjustable flow water spray nozzle can adjust the water pumping quantity of the water throwing wheel by adjusting the water spray flow, and the test condition is more flexible.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the bottom plate, the vibration frame and the linkage type bidirectional driving mechanism;
FIG. 3 is a schematic structural diagram of a linkage type bidirectional driving mechanism of the present invention;
FIG. 4 is a schematic view of the structure of the rotation driving mechanism of the present invention cooperating with the water throwing wheel;
wherein: 1. a base; 11. a slide rail; 12. a slider; 2. a base plate; 21. a guide shaft; 22. a linear bearing; 3. a vibration frame; 31. a cross beam; 4. a water throwing wheel; 41. a wheel cover; 42. a fender; 5. a water storage tank; 51. a nozzle; 6. a fixed seat; 61. a first motor; 62. a crankshaft; 63. a first crank arm; 64. a second crank arm; 65. a third crank arm; 66. a first rotating shaft; 67. a second rotating shaft; 68. a first journal; 69. a second journal; 71. a first link; 72. a second link; 8. a second motor; 81. a first pulley; 82. a second pulley; 83. a belt; 84. a wheel axle; 9. and (7) mounting a bracket.
Detailed Description
The invention is further described with reference to the following examples.
As can be seen from fig. 1 to 4, the linkage type comprehensive detection device for the bidirectional vibration fender of the new energy vehicle in the embodiment includes a base 1, a slide rail 11 disposed at the top of the base 1, a slide block 12 slidably connected to the slide rail 11, a base plate 2 connected to the slide block 12, a guide shaft 21 disposed on the base plate 2, a linear bearing 22 slidably connected to the guide shaft 21, and a vibration frame 3 connected to the linear bearing 22;
the two sides of the vibration frame 3 are connected with wheel covers 41 arranged on the periphery of the water throwing wheel 4; two ends of the wheel cover 41 are provided with mud guards 42; the top of the base 1 is provided with a linkage type bidirectional driving mechanism which is used for driving the bottom plate 2 to move along the slide rail 11 and driving the vibration frame 3 to move along the guide shaft 21; in the linkage type comprehensive detection equipment for the bidirectional vibration fender of the new energy automobile, a water storage tank 5 is arranged at the bottom of the water throwing wheel 4; the water storage tank 5 is provided with a nozzle 51.
Specifically, in the new energy vehicle linkage type comprehensive detection equipment for the bidirectional vibration fender, the wheel housing 41 provided with the fender 42 is mounted on the side face of the vibration frame 3 according to a loading state, and the vibration frame 3 is sleeved on the vertical guide shaft 21 of the base plate 2 through the linear bearing 22 and can freely slide up and down in the vertical direction. The base plate 2 is connected with the base 1 through a slide rail 11 and can freely slide along the slide rail 11, and the linkage type bidirectional driving mechanism is arranged at the top of the base 1, so that the vibration frame 3 can move in the up-down direction and the front-back direction; the bottom of the wheel cover 41 is provided with a water throwing wheel 4 which can roll up water from a nozzle 51 of the bottom water storage tank 5 to hit the wheel cover 41 and the mudguard 42 under the driving of a rotation driving mechanism so as to simulate the impact vibration of muddy water rolled up by tires to the wheel cover 41 and the mudguard 42 when the automobile runs in rainy days.
In the comprehensive detection equipment for the linkage type bidirectional vibration fender of the new energy automobile, the linkage type bidirectional driving mechanism comprises a fixed seat 6 arranged at the top of a base 1, a first motor 61 arranged on the fixed seat 6 and a crankshaft 62 connected with the output end of the first motor 61;
the crankshaft 62 includes a first crank arm 63, a second crank arm 64, and a third crank arm 65; a first rotating shaft 66 is arranged at the center of one end of the first crank arm 63; a first journal 68 is arranged between the other end of the first crank arm 63 and one end of the second crank arm 64; a second journal 69 is arranged between the other end of the second crank arm 64 and one end of the third crank arm 65; a second rotating shaft 67 is arranged in the center of the other end of the third crank arm 65; the output end of the first motor 61 is connected with a first rotating shaft 66; the second rotating shaft 67 is rotatably connected with the fixed seat 6;
the linkage type bidirectional driving mechanism further comprises a first connecting rod 71 and a second connecting rod 72; one end of the first connecting rod 71 is sleeved on the first journal 68; the other end of the first connecting rod 71 is hinged with the vibration frame 3; one end of the second connecting rod 72 is sleeved on the second journal 69; the other end of the second connecting rod 72 is hinged with the bottom plate 2. In the comprehensive detection device for the linkage type bidirectional vibration fender of the new energy automobile, the eccentricity of the first journal 68 is the same as that of the second journal 69, and the phase included angle between the first journal 68 and the second journal 69 is 90 degrees.
Through the arrangement, the first motor 61 can convert the rotary motion of the first motor 61 into linear reciprocating motion in two directions through two sets of crank link mechanisms, the eccentric distances of two shaft positions of the first journal 68 and the second journal 69 are the same, the phase included angle between the first journal 68 and the second journal 69 is 90 degrees, the direction output by the first link 71 and the second link 72 can be ensured to be vertical, the frequency is synchronous, and the vibration output in two directions driven by the first motor 61 is realized.
In the comprehensive detection equipment for the linkage type bidirectional vibration fender of the new energy automobile, the top of the vibration frame 3 is provided with a cross beam 31; the other end of the first link 71 is hinged to the cross beam 31. The above arrangement facilitates the connection of the first link 71 with the vibration frame 3.
In the comprehensive detection equipment for the linkage type bidirectional vibration fender of the new energy automobile in the embodiment, the rotation driving mechanism comprises a second motor 8 arranged in the base 1, a first belt wheel 81 connected with the output end of the second motor 8, a second belt wheel 82 linked with the first belt wheel 81, a belt 83 sleeved between the first belt wheel 81 and the second belt wheel 82, and a wheel shaft 84 coaxially driven with the second belt wheel 82; the two ends of the wheel shaft 84 are respectively connected with the two water throwing wheels 4.
When the water dump wheel 4 is required to rotate, the second motor 8 works to drive the second belt wheel 82 to rotate through the first belt wheel 81 and the belt 83, so that the second belt wheel 82 drives the two water dump wheels 4 to rotate through the wheel shaft 84.
In the comprehensive detection equipment for the linkage type bidirectional vibration fender of the new energy automobile, a mounting bracket 9 is arranged between the wheel housing 41 and the vibration frame 3; the mounting bracket 9 is detachably connected with the vibration frame 3 through a nut. The above arrangement facilitates the disassembly and assembly of the wheel cover 41 and the vibration frame 3.
The utility model provides a two-way vibration fender comprehensive testing equipment of new energy automobile coordinated type, the quantity of slide rail 11 is two, and the both sides at base 1 top are located to two slide rail 11 symmetries. The stability of base horizontal migration can be strengthened to above-mentioned setting.
In the new energy automobile linkage type comprehensive detection equipment for the bidirectional vibration fender, the number of the guide shafts 21 is four, and the four guide shafts 21 are arranged around the base plate 2 at equal intervals. The above arrangement can increase the stability of the vertical movement of the seismic frame 3.
In the new energy automobile linkage type comprehensive detection equipment for the bidirectional vibration fender, the nozzle 51 is a water nozzle with adjustable flow. The adjustable flow water spray nozzle can adjust the water pumping quantity of the water throwing wheel 4 by adjusting the water spray flow, and the test condition is more flexible.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. The utility model provides a two-way vibration fender of new energy automobile coordinated type comprehensive testing equipment which characterized in that: the vibration device comprises a base (1), a slide rail (11) arranged at the top of the base (1), a slide block (12) connected with the slide rail (11) in a sliding manner, a bottom plate (2) connected with the slide block (12), a guide shaft (21) arranged on the bottom plate (2), a linear bearing (22) connected with the guide shaft (21) in a sliding manner and a vibration frame (3) connected with the linear bearing (22);
water throwing wheels (4) are arranged on two sides of the base (1); a rotation driving mechanism for driving the water throwing wheel (4) to rotate is arranged in the base (1);
two sides of the vibration frame (3) are connected with wheel covers (41) arranged on the periphery of the water throwing wheel (4); two ends of the wheel cover (41) are provided with mud guards (42); the top of the base (1) is provided with a linkage type bidirectional driving mechanism which is used for driving the bottom plate (2) to move along the sliding rail (11) and driving the vibration frame (3) to move along the guide shaft (21);
a water storage tank (5) is arranged at the bottom of the water throwing wheel (4); a nozzle (51) is arranged on the water storage tank (5);
the wheel cover provided with the mud guard is arranged on the side surface of the vibration frame according to the loading state, and the vibration frame is sleeved on a vertical guide shaft of the bottom plate through a linear bearing and freely slides up and down in the vertical direction; the base plate is connected with the base through a slide rail and freely slides along the slide rail, and the linkage type bidirectional driving mechanism is arranged at the top of the base, so that the vibration frame moves along the up-down direction and the front-back direction; the bottom of the wheel cover is provided with a water throwing wheel, and water of a nozzle of a water storage tank at the bottom is rolled up and hit the wheel cover and the mud guard under the driving of a rotation driving mechanism so as to simulate the impact vibration of muddy water rolled up by tires on the wheel cover and the mud guard when the automobile runs in rainy days.
2. The new energy automobile coordinated type two-way vibration fender comprehensive testing equipment of claim 1 is characterized in that: the linkage type bidirectional driving mechanism comprises a fixed seat (6) arranged at the top of the base (1), a first motor (61) arranged on the fixed seat (6) and a crankshaft (62) connected with the output end of the first motor (61);
the crankshaft (62) comprising a first crank arm (63), a second crank arm (64), and a third crank arm (65); a first rotating shaft (66) is arranged in the center of one end of the first crank arm (63); a first journal (68) is arranged between the other end of the first crank arm (63) and one end of the second crank arm (64); a second journal (69) is arranged between the other end of the second crank arm (64) and one end of the third crank arm (65); a second rotating shaft (67) is arranged in the center of the other end of the third crank arm (65); the output end of the first motor (61) is connected with a first rotating shaft (66); the second rotating shaft (67) is rotatably connected with the fixed seat (6);
the linkage type bidirectional driving mechanism also comprises a first connecting rod (71) and a second connecting rod (72); one end of the first connecting rod (71) is sleeved on the first journal (68); the other end of the first connecting rod (71) is hinged with the vibration frame (3); one end of the second connecting rod (72) is sleeved on the second journal (69); the other end of the second connecting rod (72) is hinged with the bottom plate (2).
3. The new energy automobile coordinated type two-way vibration fender comprehensive testing equipment of claim 2 is characterized in that: the top of the vibration frame (3) is provided with a cross beam (31); the other end of the first connecting rod (71) is hinged with the cross beam (31).
4. The new energy automobile coordinated type two-way vibration fender comprehensive testing equipment of claim 2 is characterized in that: the eccentricity of the first journal (68) is the same as that of the second journal (69), and the phase angle between the first journal (68) and the second journal (69) is 90 degrees.
5. The new energy automobile coordinated type two-way vibration fender comprehensive testing equipment of claim 1 is characterized in that: the rotation driving mechanism comprises a second motor (8) arranged in the base (1), a first belt wheel (81) connected with the output end of the second motor (8), a second belt wheel (82) linked with the first belt wheel (81), a belt (83) sleeved between the first belt wheel (81) and the second belt wheel (82) and a wheel shaft (84) coaxially driven with the second belt wheel (82); two ends of the wheel shaft (84) are respectively connected with the two water throwing wheels (4).
6. The new energy automobile coordinated type two-way vibration fender comprehensive testing equipment of claim 1 is characterized in that: a mounting bracket (9) is arranged between the wheel cover (41) and the vibration frame (3); the mounting bracket (9) is detachably connected with the vibration frame (3) through a nut.
7. The new energy automobile coordinated type two-way vibration fender comprehensive testing equipment of claim 1 is characterized in that: the quantity of slide rail (11) is two, and two slide rail (11) symmetry are located the both sides at base (1) top.
8. The new energy automobile coordinated type two-way vibration fender comprehensive testing equipment of claim 1 is characterized in that: the number of the guide shafts (21) is four, and the four guide shafts (21) are arranged on the periphery of the bottom plate (2) at equal intervals.
9. The new energy automobile coordinated type two-way vibration fender comprehensive testing equipment of claim 1 is characterized in that: the nozzle (51) is a water nozzle with adjustable flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911276688.5A CN110940478B (en) | 2019-12-12 | 2019-12-12 | New energy automobile coordinated type bidirectional vibration fender comprehensive testing equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911276688.5A CN110940478B (en) | 2019-12-12 | 2019-12-12 | New energy automobile coordinated type bidirectional vibration fender comprehensive testing equipment |
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| CN110940478A CN110940478A (en) | 2020-03-31 |
| CN110940478B true CN110940478B (en) | 2021-12-07 |
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| KR100551829B1 (en) * | 2004-03-17 | 2006-02-13 | 현대자동차주식회사 | Jig for testing plastic fender |
| CN106950053A (en) * | 2017-04-24 | 2017-07-14 | 中国第汽车股份有限公司 | A kind of commercial car splash apron bracket assembly testing bench frame and endurance test method |
| CN109374247A (en) * | 2019-01-14 | 2019-02-22 | 宁波联华汽车部件有限公司 | A kind of mud guard vibration rig |
| CN109406081A (en) * | 2018-12-13 | 2019-03-01 | 北京长城华冠汽车技术开发有限公司 | Brake disc mud guard vibration experiment and test method |
| CN208902373U (en) * | 2018-11-12 | 2019-05-24 | 广州汽车集团股份有限公司 | Auto parts and components buckle shock measuring system |
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2019
- 2019-12-12 CN CN201911276688.5A patent/CN110940478B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100551829B1 (en) * | 2004-03-17 | 2006-02-13 | 현대자동차주식회사 | Jig for testing plastic fender |
| CN106950053A (en) * | 2017-04-24 | 2017-07-14 | 中国第汽车股份有限公司 | A kind of commercial car splash apron bracket assembly testing bench frame and endurance test method |
| CN208902373U (en) * | 2018-11-12 | 2019-05-24 | 广州汽车集团股份有限公司 | Auto parts and components buckle shock measuring system |
| CN109406081A (en) * | 2018-12-13 | 2019-03-01 | 北京长城华冠汽车技术开发有限公司 | Brake disc mud guard vibration experiment and test method |
| CN109374247A (en) * | 2019-01-14 | 2019-02-22 | 宁波联华汽车部件有限公司 | A kind of mud guard vibration rig |
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| 《基于道路载荷谱的挡泥板耐久性分析》;刘道勇 等;《2018中国汽车工程学会年会论文集》;20181106;第1417-1424页 * |
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