CN209927280U - Vehicle cooling fan vibration noise test fixing rack - Google Patents
Vehicle cooling fan vibration noise test fixing rack Download PDFInfo
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- CN209927280U CN209927280U CN201920977263.6U CN201920977263U CN209927280U CN 209927280 U CN209927280 U CN 209927280U CN 201920977263 U CN201920977263 U CN 201920977263U CN 209927280 U CN209927280 U CN 209927280U
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Abstract
A vibration noise test fixing rack for a vehicle cooling fan comprises a plate body base, a supporting mechanism vertically arranged on the plate body base, a fan fixing mechanism arranged in the supporting mechanism and capable of adjusting the fixing position of a fan to be tested, and a microphone fixing mechanism capable of adjusting the testing position of a microphone; the supporting mechanism comprises a first upright post, a second upright post, a third upright post and a fourth upright post which are arranged at four corners of the plate body base; the fan fixing mechanism comprises an upper transverse adjusting rod and a lower transverse adjusting rod which are respectively arranged at the upper end and the lower end of the fan to be tested and can adjust the transverse fixing position of the fan to be tested; the microphone fixing mechanism comprises a microphone transverse adjusting rod arranged between the first upright post and the fourth upright post, the fixing position of the microphone fixing support can be transversely adjusted, multiple adjusting modes can be realized, the adjusting range is enlarged, the testing time is effectively shortened, the working efficiency is improved, meanwhile, the accurate positioning of the test point is improved, and the testing effect is better.
Description
Technical Field
The utility model relates to an experimental installing support technical field of using, in particular to automobile-used cooling fan vibration noise test fixed bed frame.
Background
In the process of developing the vibration noise performance of the automobile, the vibration noise characteristic of an automobile cooling fan assembly needs to be analyzed independently (the characteristic is detected only in the state of the whole automobile in the past) so as to take improvement measures in a targeted manner, in the process of research, when the influence of each assembly and part of the automobile on the vibration noise of the whole automobile is distinguished conveniently, each assembly and part are tested independently, the automobile cooling fan needs to be fixed through a specific installation device, the test is only carried out in the state of the whole automobile in the past, the problems of inconvenient position adjustment, time-consuming operation, error detection and the like exist, the use safety of equipment, the test efficiency and the accuracy of test results are influenced, the fixing is carried out through a temporary scheme in the past, the problems of infirm fixing, inconvenient position adjustment, difficult bracket moving, low utilization rate, time-consuming operation, a plurality of interference factors, error detection and, thereby influencing the use safety of the equipment, the test efficiency and the accuracy of the test result.
Disclosure of Invention
The utility model discloses an in order to overcome prior art's the aforesaid not enough, and provide an automobile-used cooling fan vibration noise test fixed rack, can realize multiple regulation mode, make the control range enlarge, effectively reduced experimental time, improve work efficiency, improved the accurate location of test point simultaneously, test effect is better.
A vibration noise test fixing rack for a vehicle cooling fan comprises a plate body base, a supporting mechanism vertically arranged on the plate body base, a fan fixing mechanism arranged in the supporting mechanism and capable of adjusting the fixing position of a fan to be tested, and a microphone fixing mechanism capable of adjusting the testing position of a microphone;
the supporting mechanism comprises a first upright post, a second upright post, a third upright post and a fourth upright post which are arranged at four corners of the plate body base, and the first upright post and the second upright post are connected through a first longitudinal adjusting rod and a second longitudinal adjusting rod; the third upright post is connected with the fourth upright post through a third longitudinal adjusting rod and a fourth longitudinal adjusting rod;
the fan fixing mechanism comprises an upper transverse adjusting rod and a lower transverse adjusting rod which are respectively arranged at the upper end and the lower end of the fan to be tested and can adjust the transverse fixing position of the fan to be tested, the left end and the right end of the upper transverse adjusting rod and the right end of the lower transverse adjusting rod are respectively and correspondingly and slidably connected with a left vertical adjusting rod and a right vertical adjusting rod, the upper end and the lower end of the left vertical adjusting rod are respectively and correspondingly and slidably connected with a first longitudinal adjusting rod and a second longitudinal adjusting rod, and the upper end and the lower end of the right vertical adjusting rod are respectively and correspondingly and slidably connected with a third;
the microphone fixing mechanism comprises a microphone transverse adjusting rod which is arranged between the first upright post and the fourth upright post and can transversely adjust the fixing position of the microphone fixing support, and the left end and the right end of the microphone transverse adjusting rod are respectively in sliding connection with the first upright post and the fourth upright post correspondingly.
The first upright post is connected with the fourth upright post through a first stabilizer bar, and the third upright post is connected with the second upright post through a second stabilizer bar.
The upper transverse adjusting rod and the lower transverse adjusting rod are thin plates, a through groove is formed in the middle of each of the upper transverse adjusting rod and the lower transverse adjusting rod, the through grooves are matched with mounting holes in fan mounting seats to be tested, the two mounting seats at the upper end of the fan to be tested are connected with the upper transverse adjusting rod through two lock pins respectively, and the two mounting seats at the lower end of the fan to be tested are connected with the lower transverse adjusting rod through two lock pins respectively.
The left end of the upper transverse adjusting rod is connected with a left vertical adjusting sleeve I sleeved at the upper end of the left vertical adjusting rod, and the right end of the upper transverse adjusting rod is connected with a right vertical adjusting sleeve I sleeved at the upper end of the right vertical adjusting rod; the left end of the lower transverse adjusting rod is connected with a left vertical adjusting sleeve two phase sleeved at the lower end of the left vertical adjusting rod, and the right end of the lower transverse adjusting rod is connected with a right vertical adjusting sleeve two phase sleeved at the lower end of the right vertical adjusting rod; the vertical adjusting sleeve comprises a left vertical adjusting sleeve I, a left vertical adjusting sleeve II, a right vertical adjusting sleeve I and a right vertical adjusting sleeve II, wherein a first through hole is formed in the first through hole on the left vertical adjusting sleeve I, a second vertical positioning bolt is installed in the first through hole on the left vertical adjusting sleeve II, a third vertical positioning bolt is installed in the first through hole on the right vertical adjusting sleeve I, and a fourth vertical positioning bolt is installed in the first through hole on the right vertical adjusting sleeve II.
The upper end of the left vertical adjusting rod is connected with a first left longitudinal adjusting sleeve sleeved on the first longitudinal adjusting rod, and the lower end of the left vertical adjusting rod is connected with a second left longitudinal adjusting sleeve sleeved on a second longitudinal adjusting rod; the upper end of the right vertical adjusting rod is connected with a first right longitudinal adjusting sleeve sleeved on a third longitudinal adjusting rod, and the lower end of the right vertical adjusting rod is connected with a second right longitudinal adjusting sleeve sleeved on a fourth longitudinal adjusting rod; the left longitudinal adjusting sleeve I, the left longitudinal adjusting sleeve II, the right longitudinal adjusting sleeve I and the right longitudinal adjusting sleeve II are respectively provided with a through hole II, a longitudinal positioning bolt I is installed in the through hole II on the left longitudinal adjusting sleeve I, a longitudinal positioning bolt II is installed in the through hole II on the left longitudinal adjusting sleeve II, a longitudinal positioning bolt III is installed in the through hole II on the right longitudinal adjusting sleeve I, and a longitudinal positioning bolt IV is installed in the through hole II on the right longitudinal adjusting sleeve II.
The left end of the microphone transverse adjusting rod is connected with a left vertical adjusting sleeve sleeved on the first upright post in a three-phase mode, and the right end of the microphone transverse adjusting rod is connected with a right vertical adjusting sleeve sleeved on the fourth upright post in a three-phase mode; and a third through hole is formed in the third left vertical adjusting sleeve and a third right vertical adjusting sleeve respectively, a fifth vertical positioning bolt is installed in the third through hole in the third left vertical adjusting sleeve, and a sixth vertical positioning bolt is installed in the third through hole in the third right vertical adjusting sleeve.
The bottom end of the microphone fixing support is connected with a transverse and vertical adjusting sleeve sleeved on a microphone transverse adjusting rod, a through hole IV is formed in the transverse and vertical adjusting sleeve, and a transverse positioning bolt is installed in the through hole IV in the transverse and vertical adjusting sleeve; the microphone fixing support comprises an upper fixing frame and a lower fixing frame, wherein an external thread is arranged at the upper end of the upper fixing frame, an internal thread matched with the external thread of the upper fixing frame is arranged at the bottom end of the lower fixing frame, and the upper fixing frame is in threaded connection with the lower fixing frame.
The upper end of the microphone fixing support is provided with a first groove for mounting a microphone base, two opening ends of the first groove are respectively provided with a fifth through hole matched with a mounting hole at the bottom of the microphone base, and the bottom end of the microphone base is mounted in the first groove at the upper end of the microphone fixing support through a fixing pin; the upper end of the microphone base is vertically provided with a cylindrical fixing frame for fixing the microphone, the upper end of the fixing frame is provided with an opening, and two ends of the fixing frame are respectively arranged into inclined planes.
Go up horizontal adjusting rod, vertical adjusting rod one, vertical adjusting rod two, vertical adjusting rod three, vertical adjusting rod four, left vertical adjusting rod, right vertical adjusting rod, stand one, stand four, microphone horizontal adjusting rod are the body of rod that has the scale down.
The plate body base is provided with a mounting plate at the position corresponding to the first upright post, the second upright post, the third upright post and the fourth upright post respectively, the mounting plate is provided with a through hole six matched with a bolt, the bottoms of the first upright post, the second upright post, the third upright post and the fourth upright post are respectively provided with a groove two matched with the mounting plate, and the first upright post, the second upright post, the third upright post and the fourth upright post are fixedly connected with the mounting plate at the position corresponding to the plate body base through bolts respectively; the four corners of the bottom of the plate body base are respectively provided with a roller, the left side surface of the plate body base is provided with a first handrail and a second handrail, and the first handrail and the second handrail are symmetrically positioned at two ends of the left side surface of the plate body base.
The utility model has the advantages that: compared with the prior art, the utility model can realize the adjustment of the spatial position of the tested piece, can realize the adjustment of the spatial position of the microphone, and respectively carry out precise adjustment from a plurality of degrees of freedom, thereby better meeting the requirements of the microphone and the accelerometer on the spatial position and ensuring the precision of the detection process and the accuracy of the detection result; the scales are arranged on each adjusting rod, so that the adjustment is more convenient and faster, the test time is effectively reduced, the working efficiency is improved, meanwhile, the accurate positioning of the test points is improved, and the test effect is better; the microphone fixing device has the advantages that the mounting and adjusting precision of the microphone can be effectively improved, the fixing mode of the microphone is improved, the cost is low, the mounting is convenient, the movement is convenient, the test efficiency and the result precision are ensured, the influence of the size of the fan is avoided, and the utilization rate is high; the support mechanism is wide in application, and can be used as a plate trailer after being disassembled.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the microphone adjusting device of the present invention;
in the figure: 1. a roller; 2. a board body base; 3. a first handrail; 4. a first upright post; 5. a second vertical positioning bolt; 6. a second handrail 7 and a left vertical adjusting rod; 8. a first vertical positioning bolt; 9. a first longitudinal adjusting rod; 10. a first longitudinal positioning bolt; 11. a second upright post; 12. a second stabilizer bar; 13. a first stabilizer bar; 14. an upper transverse adjusting rod; 15. a fan to be tested; 16. a third longitudinal positioning bolt; 17. a third longitudinal adjusting rod; 18. a third upright post; 19. a third vertical positioning bolt; 20. a right vertical adjustment rod; 21. a vertical positioning bolt IV; 22. a bolt; 23. mounting a plate; 24. a longitudinal positioning bolt IV; 25. a nut; 26. a fourth longitudinal adjusting rod; 27. a fourth upright post; 28. a lock pin; 29. a lower transverse adjusting rod; 30. a second longitudinal positioning bolt; 31. a second longitudinal adjusting rod; 32. a fifth vertical positioning bolt; 33. a microphone; 34. a fixed mount; 35. a fixing pin; 36. a microphone fixing bracket; 37. a microphone transverse adjusting rod 38 and a vertical positioning bolt six; 39. and a transverse positioning bolt.
Detailed Description
The technical solution in the embodiments of the present invention will now be clearly and completely described with reference to the accompanying drawings, which are simplified schematic drawings and only schematically illustrate the basic structure of the present invention.
As shown in fig. 1, the utility model comprises a plate body base 2, a supporting mechanism vertically arranged on the plate body base 2, a fan fixing mechanism arranged in the supporting mechanism and capable of adjusting the fixing position of a fan 15 to be tested, and a microphone fixing mechanism capable of adjusting the testing position of a microphone; the spatial position of the detected piece can be adjusted, the spatial position of the microphone can be adjusted, accurate adjustment can be performed from multiple degrees of freedom, the requirements of the microphone and the accelerometer on the spatial position can be met, and the accuracy of the detection process and the accuracy of the detection result can be guaranteed;
the supporting mechanism comprises a first upright post 4, a second upright post 11, a third upright post 18 and a fourth upright post 27 which are arranged at four corners of the plate body base 2, and the first upright post 4 is connected with the second upright post 11 through a first longitudinal adjusting rod 9 and a second longitudinal adjusting rod 31; the third upright post 18 is connected with the fourth upright post 27 through a third longitudinal adjusting rod 17 and a fourth longitudinal adjusting rod 26; the first upright post 4 is connected with the fourth upright post 27 through the first stabilizer bar 13, the third upright post 18 is connected with the second upright post 11 through the second stabilizer bar 12, the stability of the whole support is improved through the first stabilizer bar 13 and the second stabilizer bar 12, and the precision of a test result is effectively ensured;
the fan fixing mechanism comprises an upper transverse adjusting rod 14 and a lower transverse adjusting rod 29 which are respectively arranged at the upper end and the lower end of the fan 15 to be tested and can adjust the transverse fixing position of the fan 15 to be tested, the left end and the right end of the upper transverse adjusting rod 14 and the right end of the lower transverse adjusting rod 29 are respectively in corresponding sliding connection with the left vertical adjusting rod 7 and the right vertical adjusting rod 20, the upper end and the lower end of the left vertical adjusting rod 7 are respectively in corresponding sliding connection with the longitudinal adjusting rod I9 and the longitudinal adjusting rod II 31, and the upper end and the lower end of the right vertical adjusting rod 20 are respectively in corresponding sliding connection with the longitudinal; the upper transverse adjusting rod 14 and the lower transverse adjusting rod 29 are thin plates, a through groove is formed in the middle of each of the upper transverse adjusting rod 14 and the lower transverse adjusting rod 29 and matched with a mounting hole in a mounting seat of the fan 15 to be tested, two mounting seats at the upper end of the fan 15 to be tested are connected with the upper transverse adjusting rod 14 through two lock pins, and two mounting seats at the lower end of the fan 15 to be tested are connected with the lower transverse adjusting rod 29 through two lock pins; the locking pins at the upper end and the lower end of the fan 15 to be tested are loosened, and the transverse fixing position of the fan 15 to be tested can be moved transversely left and right;
the left end of the upper transverse adjusting rod 14 is connected with a left vertical adjusting sleeve I sleeved at the upper end of the left vertical adjusting rod 7, and the right end of the upper transverse adjusting rod is connected with a right vertical adjusting sleeve I sleeved at the upper end of the right vertical adjusting rod 20; the left end of the lower transverse adjusting rod 29 is connected with a left vertical adjusting sleeve II sleeved at the lower end of the left vertical adjusting rod 7, and the right end of the lower transverse adjusting rod is connected with a right vertical adjusting sleeve II sleeved at the lower end of the right vertical adjusting rod 20; a first through hole is formed in each of the first left vertical adjusting sleeve, the second left vertical adjusting sleeve, the first right vertical adjusting sleeve and the second right vertical adjusting sleeve, a first vertical positioning bolt 8 is installed in the first through hole in the first left vertical adjusting sleeve, a second vertical positioning bolt 5 is installed in the first through hole in the second left vertical adjusting sleeve, a third vertical positioning bolt 19 is installed in the first through hole in the first right vertical adjusting sleeve, and a fourth vertical positioning bolt 21 is installed in the first through hole in the second right vertical adjusting sleeve; the vertical positioning bolt I8, the vertical positioning bolt II 5, the vertical positioning bolt III 19 and the vertical positioning bolt IV 21 are loosened, and the fixing positions of the upper transverse adjusting rod 14 and the lower transverse adjusting rod 29 can be vertically moved up and down, so that the vertical fixing position of the fan 15 to be tested is adjusted;
the upper end of the left vertical adjusting rod 7 is connected with a first left longitudinal adjusting sleeve sleeved on the first longitudinal adjusting rod 9, and the lower end of the left vertical adjusting rod is connected with a second left longitudinal adjusting sleeve sleeved on a second longitudinal adjusting rod 31; the upper end of the right vertical adjusting rod 20 is connected with a first right longitudinal adjusting sleeve sleeved on a third longitudinal adjusting rod 17, and the lower end of the right vertical adjusting rod is connected with a second right longitudinal adjusting sleeve sleeved on a fourth longitudinal adjusting rod 26; a through hole II is formed in each of the left longitudinal adjusting sleeve I, the left longitudinal adjusting sleeve II, the right longitudinal adjusting sleeve I and the right longitudinal adjusting sleeve II, a longitudinal positioning bolt I10 is installed in the through hole II in the left longitudinal adjusting sleeve I, a longitudinal positioning bolt II 30 is installed in the through hole II in the left longitudinal adjusting sleeve II, a longitudinal positioning bolt III 16 is installed in the through hole II in the right longitudinal adjusting sleeve I, and a longitudinal positioning bolt IV 24 is installed in the through hole II in the right longitudinal adjusting sleeve II; the fixing positions of the left vertical adjusting rod 7 and the right vertical adjusting rod 20 can be longitudinally moved back and forth by loosening the first longitudinal positioning bolt 10, the second longitudinal positioning bolt 30, the third longitudinal positioning bolt 16 and the fourth longitudinal positioning bolt 24, so that the longitudinal fixing position of the fan 15 to be tested is adjusted;
the upper transverse adjusting rod 14, the lower transverse adjusting rod 29, the first longitudinal adjusting rod 9, the second longitudinal adjusting rod 31, the third longitudinal adjusting rod 17, the fourth longitudinal adjusting rod 26, the left vertical adjusting rod 7, the right vertical adjusting rod 20, the first upright post 4, the fourth upright post 27 and the transverse microphone adjusting rod 37 are all rod bodies with scales; the scales are arranged on each adjusting rod, so that the adjustment is more convenient and faster, the test time is effectively reduced, the working efficiency is improved, meanwhile, the accurate positioning of the test points is improved, and the test effect is better;
the plate body base 2 is provided with a mounting plate at the position corresponding to the first upright post 4, the second upright post 11, the third upright post 18 and the fourth upright post 27 respectively, the mounting plate is provided with a through hole six matched with a bolt, the bottoms of the first upright post 4, the second upright post 11, the third upright post 18 and the fourth upright post 27 are provided with a groove two matched with the mounting plate respectively, and the first upright post 4, the second upright post 11, the third upright post 18 and the fourth upright post 27 are fixedly connected with the mounting plate at the position corresponding to the plate body base 2 through bolts respectively; four corners of the bottom of the plate body base 2 are respectively provided with a roller, the left side surface of the plate body base 2 is provided with a first handrail 3 and a second handrail 6, and the first handrail 3 and the second handrail 6 are symmetrically positioned at two ends of the left side surface of the plate body base 2; the support mechanism is wide in application, and can be used as a plate trailer after being disassembled.
According to fig. 2, the microphone fixing mechanism of the present invention comprises a microphone transverse adjusting rod 37 disposed between the first column 4 and the fourth column 27 and capable of transversely adjusting the fixing position of the microphone fixing bracket 36, wherein the left and right ends of the microphone transverse adjusting rod 37 are respectively connected with the first column 4 and the fourth column 27 in a sliding manner; the left end of the microphone transverse adjusting rod 37 is connected with a left vertical adjusting sleeve sleeved on the first upright post 4 in a three-phase mode, and the right end of the microphone transverse adjusting rod is connected with a right vertical adjusting sleeve sleeved on the fourth upright post 27 in a three-phase mode; a third through hole is formed in each of the third left vertical adjusting sleeve and the third right vertical adjusting sleeve, a fifth vertical positioning bolt 32 is installed in the third through hole in the third left vertical adjusting sleeve, and a sixth vertical positioning bolt 38 is installed in the third through hole in the third right vertical adjusting sleeve; the vertical positioning bolt five 32 and the vertical positioning bolt six 38 are loosened, the horizontal adjusting rod 37 can be vertically moved up and down to fix the position up and down, and therefore the vertical position of the microphone fixing bracket 36 fixed on the horizontal adjusting rod 37 is adjusted;
the bottom end of the microphone fixing support 36 is connected with a transverse and vertical adjusting sleeve sleeved on a microphone transverse adjusting rod 37, a through hole IV is formed in the transverse and vertical adjusting sleeve, and a transverse positioning bolt 39 is installed in the through hole IV in the transverse and vertical adjusting sleeve; the microphone fixing bracket 36 can be moved left and right transversely to fix the position left and right transversely by loosening the transverse positioning bolt 39;
the microphone fixing support 36 comprises an upper fixing frame and a lower fixing frame, wherein the upper end of the upper fixing frame is provided with an external thread, the bottom end of the lower fixing frame is provided with an internal thread matched with the external thread of the upper fixing frame, and the upper fixing frame is in threaded connection with the lower fixing frame, so that the first fixing support of the microphone can rotate 360 degrees, and the testing range is enlarged; the upper end of the microphone fixing support 36 is provided with a first groove for mounting a microphone base, two opening ends of the first groove are respectively provided with a fifth through hole matched with a mounting hole at the bottom of the microphone base, and the bottom end of the microphone base is mounted in the first groove at the upper end of the microphone fixing support 36 through a fixing pin 35; the upper end of the microphone base is vertically provided with a cylindrical fixing frame 34 used for fixing the microphone 33, the upper end of the fixing frame 34 is provided with an opening, and two ends of the fixing frame 34 are respectively arranged into inclined planes.
Claims (10)
1. The utility model provides a fixed rack of vehicle cooling fan vibration noise test which characterized in that: the testing device comprises a plate body base (2), a supporting mechanism vertically arranged on the plate body base (2), a fan fixing mechanism arranged in the supporting mechanism and capable of adjusting the fixing position of a fan (15) to be tested, and a microphone fixing mechanism capable of adjusting the testing position of a microphone;
the supporting mechanism comprises a first upright post (4), a second upright post (11), a third upright post (18) and a fourth upright post (27) which are arranged at four corners of the plate body base (2), and the first upright post (4) is connected with the second upright post (11) through a first longitudinal adjusting rod (9) and a second longitudinal adjusting rod (31); the third upright post (18) is connected with the fourth upright post (27) through a third longitudinal adjusting rod (17) and a fourth longitudinal adjusting rod (26);
the fan fixing mechanism comprises an upper transverse adjusting rod (14) and a lower transverse adjusting rod (29) which are respectively arranged at the upper end and the lower end of a fan (15) to be tested and can adjust the transverse fixing position of the fan (15) to be tested, the left end and the right end of the upper transverse adjusting rod (14) and the lower transverse adjusting rod (29) are respectively and correspondingly slidably connected with a left vertical adjusting rod (7) and a right vertical adjusting rod (20), the upper end and the lower end of the left vertical adjusting rod (7) are respectively and correspondingly slidably connected with a first longitudinal adjusting rod (9) and a second longitudinal adjusting rod (31), and the upper end and the lower end of the right vertical adjusting rod (20) are respectively and correspondingly and slidably connected with a third longitudinal adjusting rod (17) and;
the microphone fixing mechanism comprises a microphone transverse adjusting rod (37) which is arranged between the first upright post (4) and the fourth upright post (27) and can transversely adjust the fixing position of the microphone fixing support (36), and the left end and the right end of the microphone transverse adjusting rod (37) are respectively in sliding connection with the first upright post (4) and the fourth upright post (27) correspondingly.
2. The stationary mounting rack for a vibration noise test of a cooling fan for a vehicle according to claim 1, wherein: the first upright post (4) is connected with the fourth upright post (27) through a first stabilizer bar (13), and the third upright post (18) is connected with the second upright post (11) through a second stabilizer bar (12).
3. The stationary mounting rack for a vibration noise test of a cooling fan for a vehicle according to claim 1, wherein: the testing device is characterized in that the upper transverse adjusting rod (14) and the lower transverse adjusting rod (29) are thin plates, a through groove is formed in the middle of each of the upper transverse adjusting rod (14) and the lower transverse adjusting rod (29), the through groove is matched with mounting holes in mounting seats of fans to be tested (15), the two mounting seats at the upper end of each fan to be tested (15) are connected with the upper transverse adjusting rod (14) through two lock pins respectively, and the two mounting seats at the lower end of each fan to be tested (15) are connected with the lower transverse adjusting rod (29) through two lock pins respectively.
4. The stationary mounting rack for a vibration noise test of a cooling fan for a vehicle according to claim 1, wherein: the left end of the upper transverse adjusting rod (14) is connected with a left vertical adjusting sleeve I sleeved at the upper end of the left vertical adjusting rod (7), and the right end of the upper transverse adjusting rod is connected with a right vertical adjusting sleeve I sleeved at the upper end of the right vertical adjusting rod (20); the left end of the lower transverse adjusting rod (29) is connected with a left vertical adjusting sleeve II sleeved at the lower end of the left vertical adjusting rod (7), and the right end of the lower transverse adjusting rod is connected with a right vertical adjusting sleeve II sleeved at the lower end of the right vertical adjusting rod (20); the vertical adjusting sleeve comprises a left vertical adjusting sleeve I, a left vertical adjusting sleeve II, a right vertical adjusting sleeve I and a right vertical adjusting sleeve II, wherein a first through hole is formed in the first through hole on the left vertical adjusting sleeve I, a first vertical positioning bolt (8) is installed in the first through hole on the left vertical adjusting sleeve I, a second vertical positioning bolt (5) is installed in the first through hole on the left vertical adjusting sleeve II, a third vertical positioning bolt (19) is installed in the first through hole on the right vertical adjusting sleeve I, and a fourth vertical positioning bolt (21) is installed in the first through hole on the right vertical adjusting sleeve II.
5. The stationary mounting rack for a vibration noise test of a cooling fan for a vehicle according to claim 1, wherein: the upper end of the left vertical adjusting rod (7) is connected with a first left vertical adjusting sleeve sleeved on the first vertical adjusting rod (9), and the lower end of the left vertical adjusting rod is connected with a second left vertical adjusting sleeve sleeved on a second vertical adjusting rod (31); the upper end of the right vertical adjusting rod (20) is connected with a first right longitudinal adjusting sleeve sleeved on the third longitudinal adjusting rod (17), and the lower end of the right vertical adjusting rod is connected with a second right longitudinal adjusting sleeve sleeved on the fourth longitudinal adjusting rod (26); the left longitudinal adjusting sleeve I, the left longitudinal adjusting sleeve II, the right longitudinal adjusting sleeve I and the right longitudinal adjusting sleeve II are respectively provided with a through hole II, a longitudinal positioning bolt I (10) is installed in the through hole II on the left longitudinal adjusting sleeve I, a longitudinal positioning bolt II (30) is installed in the through hole II on the left longitudinal adjusting sleeve II, a longitudinal positioning bolt III (16) is installed in the through hole II on the right longitudinal adjusting sleeve I, and a longitudinal positioning bolt IV (24) is installed in the through hole II on the right longitudinal adjusting sleeve II.
6. The stationary mounting rack for a vibration noise test of a cooling fan for a vehicle according to claim 1, wherein: the left end of the microphone transverse adjusting rod (37) is connected with a left vertical adjusting sleeve sleeved on the first upright post (4) in a three-phase mode, and the right end of the microphone transverse adjusting rod is connected with a right vertical adjusting sleeve sleeved on the fourth upright post (27) in a three-phase mode; and a third through hole is formed in the third left vertical adjusting sleeve and the third right vertical adjusting sleeve respectively, a fifth vertical positioning bolt (32) is installed in the third through hole in the third left vertical adjusting sleeve, and a sixth vertical positioning bolt (38) is installed in the third through hole in the third right vertical adjusting sleeve.
7. The stationary mounting rack for a vibration noise test of a cooling fan for a vehicle according to claim 1, wherein: the bottom end of the microphone fixing support (36) is connected with a transverse and vertical adjusting sleeve sleeved on a microphone transverse adjusting rod (37), a through hole IV is formed in the transverse and vertical adjusting sleeve, and a transverse positioning bolt (39) is installed in the through hole IV in the transverse and vertical adjusting sleeve; the microphone fixing support (36) comprises an upper fixing frame and a lower fixing frame, wherein an external thread is arranged at the upper end of the upper fixing frame, an internal thread matched with the external thread of the upper fixing frame is arranged at the bottom end of the lower fixing frame, and the upper fixing frame is in threaded connection with the lower fixing frame.
8. The stationary mounting rack for a vibration noise test of a cooling fan for a vehicle according to claim 1, wherein: the upper end of the microphone fixing support (36) is provided with a first groove used for mounting a microphone base, two opening ends of the first groove are respectively provided with a fifth through hole matched with a mounting hole at the bottom of the microphone base, and the bottom end of the microphone base is mounted in the first groove at the upper end of the microphone fixing support (36) through a fixing pin (35); the upper end of the microphone base is vertically provided with a cylindrical fixing frame (34) used for fixing the microphone (33), the upper end of the fixing frame (34) is provided with an opening, and two ends of the fixing frame (34) are respectively arranged into inclined planes.
9. The stationary mounting rack for a vibration noise test of a cooling fan for a vehicle according to claim 1, wherein: the microphone horizontal adjusting rod is characterized in that the upper horizontal adjusting rod (14), the lower horizontal adjusting rod (29), the first longitudinal adjusting rod (9), the second longitudinal adjusting rod (31), the third longitudinal adjusting rod (17), the fourth longitudinal adjusting rod (26), the left vertical adjusting rod (7), the right vertical adjusting rod (20), the first upright column (4), the fourth upright column (27) and the microphone horizontal adjusting rod (37) are graduated rod bodies.
10. The stationary mounting rack for a vibration noise test of a cooling fan for a vehicle according to claim 1, wherein: the plate body base (2) is provided with a mounting plate at the position corresponding to the first upright post (4), the second upright post (11), the third upright post (18) and the fourth upright post (27), the mounting plate is provided with a through hole six matched with a bolt, the bottoms of the first upright post (4), the second upright post (11), the third upright post (18) and the fourth upright post (27) are respectively provided with a groove two matched with the mounting plate, and the first upright post (4), the second upright post (11), the third upright post (18) and the fourth upright post (27) are respectively fixedly connected with the mounting plate at the position corresponding to the plate body base (2) through bolts; four corners of the bottom of the plate body base (2) are respectively provided with a roller, the left side surface of the plate body base (2) is provided with a first handrail (3) and a second handrail (6), and the first handrail (3) and the second handrail (6) are symmetrically arranged at two ends of the left side surface of the plate body base (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920977263.6U CN209927280U (en) | 2019-06-27 | 2019-06-27 | Vehicle cooling fan vibration noise test fixing rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920977263.6U CN209927280U (en) | 2019-06-27 | 2019-06-27 | Vehicle cooling fan vibration noise test fixing rack |
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| CN209927280U true CN209927280U (en) | 2020-01-10 |
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| CN201920977263.6U Active CN209927280U (en) | 2019-06-27 | 2019-06-27 | Vehicle cooling fan vibration noise test fixing rack |
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| CN (1) | CN209927280U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096640A (en) * | 2020-09-04 | 2020-12-18 | 江苏理工学院 | Diversified noise detection device of fan |
| CN112360791A (en) * | 2020-10-27 | 2021-02-12 | 东风博泽汽车系统有限公司 | Adjustable electronic fan order noise analysis system |
-
2019
- 2019-06-27 CN CN201920977263.6U patent/CN209927280U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096640A (en) * | 2020-09-04 | 2020-12-18 | 江苏理工学院 | Diversified noise detection device of fan |
| CN112096640B (en) * | 2020-09-04 | 2022-05-13 | 江苏理工学院 | Diversified noise detection device of fan |
| CN112360791A (en) * | 2020-10-27 | 2021-02-12 | 东风博泽汽车系统有限公司 | Adjustable electronic fan order noise analysis system |
| CN112360791B (en) * | 2020-10-27 | 2022-03-29 | 东风博泽汽车系统有限公司 | Adjustable electronic fan order noise analysis system |
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