CN103454056B - Fuel tank noise testing simulation brake test table - Google Patents

Fuel tank noise testing simulation brake test table Download PDF

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Publication number
CN103454056B
CN103454056B CN201310399146.3A CN201310399146A CN103454056B CN 103454056 B CN103454056 B CN 103454056B CN 201310399146 A CN201310399146 A CN 201310399146A CN 103454056 B CN103454056 B CN 103454056B
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CN
China
Prior art keywords
oblique frame
fuel tank
brake
slide trolley
objective
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CN201310399146.3A
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Chinese (zh)
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CN103454056A (en
Inventor
孙岩
姜林
刘亮
陈明
李进
杨燕
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亚普汽车部件股份有限公司
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Priority to CN201310399146.3A priority Critical patent/CN103454056B/en
Publication of CN103454056A publication Critical patent/CN103454056A/en
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Publication of CN103454056B publication Critical patent/CN103454056B/en

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Abstract

The present invention relates to a kind of fuel tank noise testing simulation brake test table, the oblique frame of adjustable tilt angle is provided with above base, oblique frame is provided with the slide trolley that can slide along oblique frame, the surrounding of slide trolley is fixed with microphone holder, the upper plane of slide trolley is fixed with fuel tank, microphone holder is fixed with multiple microphone, each microphone is distributed in the surrounding of fuel tank except bottom surface and the distance on distance fuel tank surface is equal; The lower semisection of oblique frame is provided with the brake gear progressively braked slide trolley; The first half section of base is equipped with acoustical cotton, and acoustical cotton is at least covered with the view field of brake gear on base.Slide trolley slides and reaches fair speed to during oblique frame lower semisection, then slows down under brake gear effect, and the fuel oil in fuel tank rocks because the change of speed produces, the noise that fuel oil rocks generation by the microphone of fuel tank surrounding record.Experimentation cost saved greatly by this testing table, and the data of test gained are more objective.

Description

Fuel tank noise testing simulation brake test table
Technical field
The present invention relates to a kind of test unit of fuel tank, particularly a kind of fuel tank noise testing simulation brake test table.
Background technology
Along with car load NVH(and noise, vibration and sound vibration roughness) the improving constantly of performance, engine noise, tire are made an uproar, wind is made an uproar constantly reduces, and the application of new power system makes the fuel system noise be arranged on below vehicle body also be concerned gradually, automobile is in brake or turning process, collision noise is caused because fuel oil rocks shock fuel tank wall, or vibration passing noise between fuel tank and vehicle body.This noise is especially in harmonic motion speed, and particularly evident when vehicle is about to stop, basic evaluation means is people's listening in car, and the subjective feeling according to people is given a mark.Along with the shortening in automotive development cycle, require the noise level that can predict fuel tank in product development stage, avoid modifying at product development later stage.
Summary of the invention
The object of the invention is to, overcome problems of the prior art, a kind of fuel tank noise testing is provided to simulate brake test table, the initial velocity that fuel tank is certain can be given, after meeting the requirements of speed, certain brake deceleration degree can be provided by braking state in simulating driving procedure, can measure simultaneously fuel tank brake stop after fuel oil rock noise in process.
For solving above technical matters, a kind of fuel tank noise testing simulation brake test table of the present invention, comprise base, the oblique frame of adjustable tilt angle is provided with above described base, described oblique frame is provided with the slide trolley that can slide along oblique frame, the surrounding of described slide trolley is fixed with microphone holder, the upper plane of described slide trolley is fixed with fuel tank, described microphone holder is fixed with multiple microphone, and each described microphone is distributed in the surrounding of described fuel tank except bottom surface and the distance on distance fuel tank surface is equal; The lower semisection of described oblique frame is provided with the brake gear progressively braked slide trolley; The first half section of described base is equipped with acoustical cotton, and described acoustical cotton is at least covered with the view field of described brake gear on base.
Relative to prior art, the present invention achieves following beneficial effect: make slide trolley carry fuel tank and slide from oblique top of the trellis, slide trolley accelerates gradually with certain acceleration from zero velocity, when arriving oblique frame lower semisection, slide trolley reaches fair speed, then slide trolley touches brake gear and reduces speed now, and when arriving oblique frame lower end, speed is down to zero; Fuel oil in the process in fuel tank rocks because the change of speed produces, the noise that fuel oil rocks generation by the microphone of fuel tank surrounding record.The angle of inclination adjusting oblique frame can adjust the acceleration of slide trolley.Base first half section lays acoustical cotton can reduce the impact that brake itself and ground return cause noise testing.This testing table can be simulated the fuel oil of fuel tank in brake process and be rocked, and can shake the size of moving noise by Measurement accuracy fuel oil; Compare actual for fuel tank entrucking test, greatly saved experimentation cost, fuel tank can be tested before dispatching from the factory, and the subjective feeling according to people after comparing entrucking is given a mark, the data of this test bed testing gained are more objective.
As preferred version of the present invention, described brake gear comprises the brake lever that two are parallel to oblique frame plane, the below of described slide trolley is provided with the skin of stopping contacted with described brake lever respectively, brake lever described in two is symmetrical arranged centered by oblique frame center line, and the spacing between two brake lever lower ends diminishes gradually, the contact force making to stop between skin with corresponding brake lever becomes large gradually.Slide trolley slides to oblique frame lower semisection, and the skin of stopping below dolly starts to touch brake lever, and both produce friction and realize braking; The spacing of two brake lever upper ends is slightly large, can, so that skin of stopping enters between two brake lever, prevent to clash into; Spacing between two brake lever lower ends diminishes gradually and damping force can be made to become large gradually, ensure slide trolley arrive oblique frame bottom hourly velocity be down to zero, simultaneously also can add dynamic braking when touching barrier soon by simulating vehicle.
As preferred version of the present invention, the top of brake lever described in two is hinged on described oblique frame respectively, the brake adjustment screw of adjustable two brake lever angles is respectively equipped with outside the middle part of brake lever described in two, described brake adjustment screw is screwed on set screw support respectively, the lower end of described set screw support is separately fixed on described oblique frame, and position relative with the end of described brake adjustment screw in described brake lever is respectively equipped with brake lever boss; Described in two, the lower end outside of brake lever is connected to extension spring, and the other end of described extension spring is separately fixed on described oblique frame and makes the spacing of two brake lever lower ends have the trend of increase.Extension spring makes the lower end of two brake lever have the trend expanded outwardly, and the end of brake adjustment screw heads on the pitch smaller that brake lever boss makes two brake lever lower ends, the screw-in depth of adjustment brake adjustment screw, just can regulate the spacing size of two brake lever lower ends, make brake lever have suitable damping force.
As preferred version of the present invention, the lower end of described oblique frame is by oblique frame hinge in the front end of described base, and the upper end of described oblique frame is supported on arc frame, and the lower end of described arc frame is fixed on the rear end of described base; The both sides of described arc frame Width are respectively equipped with deep-slotted chip breaker, and described deep-slotted chip breaker is centered by the axis of described oblique frame bearing pin, and described deep-slotted chip breaker is separately installed with can by the oblique frame clamping screw of described oblique frame upper end locking; Described base is hinged with hydraulic cylinder near the position of rear end, and the piston rod part of described hydraulic cylinder is hinged on the below an upper section of described oblique frame.Oblique frame can rotate around the oblique frame bearing pin of lower end, oblique frame upper end can arcuately frame deep-slotted chip breaker swing to adjust angle of inclination, some acceleration of the corresponding fuel tank in certain angle of inclination of oblique frame, when certain angle of inclination selected, with oblique frame clamping screw, oblique frame upper end is locked, after testing, unclamp oblique frame clamping screw, change another angle and proceed test.
As preferred version of the present invention, the front end face of described slide trolley is provided with anticollison block, and the lower end of described oblique frame is provided with the buffer air bag towards described anticollison block.If slide trolley still has certain speed when arriving bottom oblique frame, then impinge upon on buffer air bag by anticollison block, avoid damaging device, fuel tank or tester.
As preferred version of the present invention, the rear end of described slide trolley is provided with lower draw-bar, the upper center of described oblique frame is provided with electromagnetic release unit, and described electromagnetic release unit is provided with the upper hook that described lower draw-bar can be hooked or discharge, and described upper hook and described lower draw-bar are interlocked.Slide trolley is pushed into oblique frame topmost, the lower draw-bar of slide trolley rear end is hooked by the upper hook of electromagnetic release unit, and when electromagnetic release unit action, lower draw-bar discharges by upper hook, and slide trolley is glided.
As preferred version of the present invention, the both sides of described oblique frame Width are respectively equipped with side rails, described side rails is parallel to the axis of described oblique frame length direction, the both sides of described slide trolley Width are respectively equipped with two groups, front and back horizontally-guided wheel support, each described horizontally-guided wheel support is respectively equipped with two axis being parallel in the horizontal guide sheave of oblique frame plane, two horizontal guide sheaves are clipped in the both sides up and down of described side rails respectively.The front and back of the slide trolley left and right sides are respectively equipped with horizontally-guided wheels, and four horizontally-guided wheels totally eight horizontal guide sheaves, the both sides up and down that horizontal guide sheave is clipped in side rails respectively make slide trolley stably to glide.
As preferred version of the present invention, axis along described oblique frame length direction is provided with center rail, the middle part of described slide trolley Width is provided with vertically-guided wheel support, the below of described vertically-guided wheel support is provided with axes normal in the vertical guide sheave of oblique frame plane, and described vertical guide sheave is clipped in the both sides of described center rail respectively.Vertical guide sheave in the middle part of slide trolley is clipped in the both sides of oblique frame center rail, and sliding of slide trolley can be made more stable.
As preferred version of the present invention, the top of described slide trolley is provided with the adjustable objective table relative to base angle of inclination, described objective table upper end thereof is on slide trolley framework, described objective table lower end is welded on two U-shaped supports, two U-shaped supports are symmetrical arranged along slide trolley Width, the middle part of described U-shaped support is connected on objective table adjusting screw(rod), the lower end of described objective table adjusting screw(rod) is hinged on described slide trolley framework respectively, each described objective table adjusting screw(rod) is connected with two objective table setting nuts respectively, two objective table setting nuts are clamped in the upper and lower both sides, middle part of corresponding U-shaped support respectively.Regulate the position of objective table setting nut on objective table adjusting screw(rod), the front end jack-up of objective table can be made the upper plane maintenance level of objective table, like this when slide trolley glides, fuel tank can be made still to be in horizontality, the acceleration of simulated automotive on level road and brake; The front end of objective table can also be made lower than rear end by regulating objective table adjusting screw(rod), the fuel tank state of simulated automotive when descending.
As preferred version of the present invention, described slide trolley is provided with velograph and accelerometer.Velograph and accelerometer accurately can provide speed in fuel tank test process and acceleration.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation, and accompanying drawing only provides reference and explanation use, is not used to limit the present invention.
Fig. 1 is the front view of fuel tank noise testing of the present invention simulation brake test table.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the stereographic map of Fig. 1.
Fig. 5 is the front view with slide trolley.
Fig. 6 is the left view of Fig. 5.
Fig. 7 is the stereographic map of Fig. 5.
Fig. 8 is the stereographic map of electromagnetic release unit.
In figure: 1. base; 1a. acoustical cotton; 2. oblique frame; 2a. buffer air bag; 2b. side rails; 2c. center rail; 2d. brake lever; 2d1. brake lever boss; 2d2. brake adjustment screw; 2d3. extension spring; The oblique frame bearing pin of 2e.; 3. arc frame; 3a. deep-slotted chip breaker; The oblique frame clamping screw of 3b.; 4. hydraulic cylinder; 5. slide trolley; 5a. objective table; 5a1.U shape support; 5a2. objective table adjusting screw(rod); 5a3. objective table setting nut; 5b. horizontally-guided wheel support; 5b1. horizontal guide sheave; 5c. vertically-guided wheel support; 5c1. vertical guide sheave; 5d stops skin; 5e. lower draw-bar; 5f. anticollison block; 6. microphone holder; 6a. microphone; The upper hook of 7a.; 7b. links up with riser; The upper hook base of 7c.; 7d. plate; 7e. vertical rod; 7f. stay cord; 7g. deflecting roller; 7h. bull stick; 7j. rotating shaft; 7k. rotating shaft support plate; 7m. electromagnet; 8. velograph; 9. accelerometer; 10. fuel tank.
Embodiment
As shown in Figure 1, fuel tank noise testing simulation brake test table of the present invention, the oblique frame 2 of adjustable tilt angle is provided with above base 1, oblique frame 2 is provided with the slide trolley 5 that can slide along oblique frame, the surrounding of slide trolley 5 is fixed with microphone holder 6, the upper plane of slide trolley 5 is fixed with fuel tank, microphone holder 6 is fixed with multiple microphone 6a, and each microphone 6a is distributed in the surrounding of fuel tank except bottom surface and the distance on distance fuel tank surface is equal; The lower semisection of oblique frame 2 is provided with the brake gear progressively braked slide trolley 5; The first half section of base 1 is equipped with acoustical cotton, and acoustical cotton 1a is at least covered with the view field of brake gear on base 1.
The lower end of oblique frame 2 is hinged on the front end of base 1 by oblique frame bearing pin 2e, the upper end of oblique frame 2 is supported on arc frame 3, and the lower end of arc frame 3 is fixed on the rear end of base 1; The both sides of arc frame 3 Width are respectively equipped with deep-slotted chip breaker 3a, and deep-slotted chip breaker 3a is centered by the axis of oblique frame bearing pin 2e, and deep-slotted chip breaker 3a is separately installed with can by the oblique frame clamping screw 3b of oblique frame upper end locking; Base 1 is hinged with hydraulic cylinder 4 near the position of rear end, and the piston rod part of hydraulic cylinder 4 is hinged on the below an upper section of oblique frame 2.
The both sides of oblique frame Width are respectively equipped with side rails 2b, side rails 2b is parallel to the axis of oblique frame length direction, the both sides of slide trolley 5 Width are respectively equipped with two groups, front and back horizontally-guided wheel support 5b, each horizontally-guided wheel support 5b is respectively equipped with two axis being parallel in the horizontal guide sheave 5b1 of oblique frame plane, two horizontal guide sheave 5b1 are clipped in the both sides up and down of side rails 2b respectively.
Axis along oblique frame length direction is provided with center rail 2c, the middle part of slide trolley 5 Width is provided with vertically-guided wheel support 5c, the below of vertically-guided wheel support 5c is provided with axes normal in the vertical guide sheave 5c1 of oblique frame plane, and vertical guide sheave 5c1 is clipped in the both sides of center rail 2c respectively.
The rear end of slide trolley 5 is provided with lower draw-bar 5e, and the upper center of oblique frame is provided with electromagnetic release unit, and electromagnetic release unit is provided with the upper hook 7a that lower draw-bar 5e can be hooked or discharge, and upper hook 7a and lower draw-bar 5e is interlocked.
The top of slide trolley 5 is provided with the adjustable objective table 5a relative to base 1 angle of inclination, objective table 5a upper end thereof is on slide trolley framework, objective table 5a lower end is welded on two U-shaped support 5a1, two U-shaped support 5a1 are symmetrical arranged along slide trolley Width, the middle part of U-shaped support 5a1 is connected on objective table adjusting screw(rod) 5a2, the lower end of objective table adjusting screw(rod) 5a2 is hinged on slide trolley framework respectively, each objective table adjusting screw(rod) 5a2 is connected with respectively two objective table setting nut 5a3, two objective table setting nut 5a3 are clamped in the upper and lower both sides, middle part of corresponding U-shaped support 5a1 respectively.Regulate the position of objective table setting nut 5a3 on objective table adjusting screw(rod) 5a2, the front end jack-up of objective table 5a can be made the upper plane maintenance level of objective table 5a, like this when slide trolley 5 glides, fuel tank can be made still to be in horizontality, the acceleration of simulated automotive on level road and brake; The front end of objective table 5a can also be made lower than rear end by regulating objective table adjusting screw(rod) 5a2, the fuel tank state of simulated automotive when descending.
Slide trolley 5 is provided with velograph 8 and accelerometer 9, the speed in fuel tank test process and acceleration can be accurately provided.
Brake gear comprises the brake lever 2d that two are parallel to oblique frame plane, the below of slide trolley 5 is provided with the skin 5d that stops contacted with brake lever 2d respectively, two brake lever 2d are symmetrical arranged centered by oblique frame center line, and the spacing between two brake lever 2d lower ends diminishes gradually, the contact force making to stop between skin 5d with corresponding brake lever 2d becomes large gradually.The top of two brake lever 2d is hinged on oblique frame respectively, the brake adjustment screw 2d2 of adjustable two brake lever 2d angles is respectively equipped with outside the middle part of two brake lever 2d, brake adjustment screw 2d2 is screwed on set screw support respectively, the lower end of set screw support is separately fixed on oblique frame, and position relative with the end of brake adjustment screw 2d2 on brake lever 2d is respectively equipped with brake lever boss 2d1; The lower end outside of two brake lever 2d is connected to extension spring 2d3, and the other end of extension spring 2d3 is separately fixed on oblique frame and makes the spacing of two brake lever 2d lower ends have the trend of increase.Slide trolley 5 slides to oblique frame lower semisection, the skin 5d that stops below dolly starts to touch brake lever 2d, both produce friction and realize braking, along with the spacing between two brake lever 2d lower ends diminishes gradually, the damping force that the skin 5d and brake lever 2d that stops produces becomes large gradually, ensure slide trolley 5 arrive oblique frame bottom hourly velocity be down to zero.The screw-in depth of adjustment brake adjustment screw 2d2, just can regulate the spacing size of two brake lever 2d lower ends, make brake lever 2d have suitable damping force.
The front end face of slide trolley 5 is provided with anticollison block 5f, and the lower end of oblique frame is provided with the buffer air bag 2a towards anticollison block 5f.If slide trolley 5 still has certain speed when arriving bottom oblique frame, then impinged upon on buffer air bag 2a by anticollison block 5f, avoid damaging device, fuel tank or tester.
The root of upper hook 7a is connected to a middle side part of hook riser 7b, the lower hinge of upper hook riser 7b is on upper hook base 7c and can around bottom fulcrum, the opposite side top of upper hook riser 7b is connected with plate 7d, plate 7d has elongated slot, vertical rod 7e is plugged with in elongated slot, the top of vertical rod 7e is connected with nut and is pressed in above plate 7d, vertical rod 7e being set with back-moving spring makes hook 7a keep down, the free end of plate 7d is connected with stay cord 7f, stay cord 7f downwards wrapped on deflecting roller 7g after, again successively through the two ends of bull stick 7h, the end of stay cord 7f is fixed on electromagnet 7m, deflecting roller 7g is fixed on hook base 7c, bull stick 7h is vertically fixed on rotating shaft 7j, the two ends of rotating shaft 7j are fixed on rotating shaft support plate 7k, rotating shaft support plate 7k is fixed on oblique frame.
Before test, oblique frame rotates around the oblique frame bearing pin 2e of lower end, and the deep-slotted chip breaker 3a of oblique frame upper end edge arc frame 3 swings to adjust angle of inclination, some acceleration of the corresponding fuel tank in certain angle of inclination of oblique frame, when certain angle of inclination selected, with oblique frame clamping screw 3b, oblique frame upper end is locked.
Slide trolley 5 is pushed into oblique frame topmost, the lower draw-bar 5e of slide trolley 5 rear end is hooked by the upper hook 7a of electromagnetic release unit.During test, electromagnet 7m obtains the electric stay cord 7f that affects and moves down, stay cord 7f affects bull stick 7h and rotating shaft 7j to rotate, finally affect the free end of plate 7d descending, the bottom of upper hook riser 7b is around fulcrum, upper hook 7a upwards lifts and is discharged by lower draw-bar 5e, slide trolley 5 is carried fuel tank and is slided from oblique top of the trellis, slide trolley 5 accelerates gradually with certain acceleration from zero velocity, when arriving oblique frame lower semisection, slide trolley 5 reaches fair speed, then the skin 5d that stops of slide trolley 5 touches brake lever 2d and reduces speed now, when arriving oblique frame lower end, speed is down to zero, fuel oil in the process in fuel tank rocks because the change of speed produces, the noise that fuel oil rocks generation by the microphone 6a of fuel tank surrounding record.
After test, unclamp oblique frame clamping screw 3b, adjust oblique frame change another angle proceed test, objective table adjusting screw(rod) 5a2 can also be adjusted objective table 5a is tested under level or heeling condition.
The foregoing is only the better possible embodiments of the present invention, non-ly therefore limit to scope of patent protection of the present invention.In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of application claims.The present invention can pass through without the technical characteristic described or adopt existing techniques in realizing, does not repeat them here.

Claims (10)

1. a fuel tank noise testing simulation brake test table, comprise base, it is characterized in that: the oblique frame being provided with adjustable tilt angle above described base, described oblique frame is provided with the slide trolley that can slide along oblique frame, the surrounding of described slide trolley is fixed with microphone holder, the upper plane of described slide trolley is fixed with fuel tank, described microphone holder is fixed with multiple microphone, and each described microphone is distributed in the surrounding of described fuel tank except bottom surface and the distance on distance fuel tank surface is equal; The lower semisection of described oblique frame is provided with the brake gear progressively braked slide trolley; The first half section of described base is equipped with acoustical cotton, and described acoustical cotton is at least covered with the view field of described brake gear on base.
2. fuel tank noise testing simulation brake test table according to claim 1, it is characterized in that: described brake gear comprises the brake lever that two are parallel to oblique frame plane, the below of described slide trolley is provided with the skin of stopping contacted with described brake lever respectively, brake lever described in two is symmetrical arranged centered by oblique frame center line, and the spacing between two brake lever lower ends diminishes gradually, the contact force making to stop between skin with corresponding brake lever becomes large gradually.
3. fuel tank noise testing simulation brake test table according to claim 2, it is characterized in that: the top of brake lever described in two is hinged on described oblique frame respectively, the brake adjustment screw of adjustable two brake lever angles is respectively equipped with outside the middle part of brake lever described in two, described brake adjustment screw is screwed on set screw support respectively, the lower end of described set screw support is separately fixed on described oblique frame, and position relative with the end of described brake adjustment screw in described brake lever is respectively equipped with brake lever boss; Described in two, the lower end outside of brake lever is connected to extension spring, and the other end of described extension spring is separately fixed on described oblique frame and makes the spacing of two brake lever lower ends have the trend of increase.
4. fuel tank noise testing simulation brake test table according to claim 1, it is characterized in that: the lower end of described oblique frame by oblique frame hinge in the front end of described base, the upper end of described oblique frame is supported on arc frame, and the lower end of described arc frame is fixed on the rear end of described base; The both sides of described arc frame Width are respectively equipped with deep-slotted chip breaker, and described deep-slotted chip breaker is centered by the axis of described oblique frame bearing pin, and described deep-slotted chip breaker is separately installed with can by the oblique frame clamping screw of described oblique frame upper end locking; Described base is hinged with hydraulic cylinder near the position of rear end, and the piston rod part of described hydraulic cylinder is hinged on the below an upper section of described oblique frame.
5. fuel tank noise testing simulation brake test table according to claim 1, it is characterized in that: the front end face of described slide trolley is provided with anticollison block, the lower end of described oblique frame is provided with the buffer air bag towards described anticollison block.
6. fuel tank noise testing simulation brake test table according to claim 1, it is characterized in that: the rear end of described slide trolley is provided with lower draw-bar, the upper center of described oblique frame is provided with electromagnetic release unit, described electromagnetic release unit is provided with the upper hook that described lower draw-bar can be hooked or discharge, and described upper hook and described lower draw-bar are interlocked.
7. fuel tank noise testing simulation brake test table according to claim 1, it is characterized in that: the both sides of described oblique frame Width are respectively equipped with side rails, described side rails is parallel to the axis of described oblique frame length direction, the both sides of described slide trolley Width are respectively equipped with two groups, front and back horizontally-guided wheel support, each described horizontally-guided wheel support is respectively equipped with two axis being parallel in the horizontal guide sheave of oblique frame plane, two horizontal guide sheaves are clipped in the both sides up and down of described side rails respectively.
8. fuel tank noise testing simulation brake test table according to claim 1, it is characterized in that: the axis along described oblique frame length direction is provided with center rail, the middle part of described slide trolley Width is provided with vertically-guided wheel support, the below of described vertically-guided wheel support is provided with axes normal in the vertical guide sheave of oblique frame plane, and described vertical guide sheave is clipped in the both sides of described center rail respectively.
9. fuel tank noise testing simulation brake test table according to claim 1, it is characterized in that: the top of described slide trolley is provided with the adjustable objective table relative to base angle of inclination, described objective table upper end thereof is on slide trolley framework, described objective table lower end is welded on two U-shaped supports, two U-shaped supports are symmetrical arranged along slide trolley Width, the middle part of described U-shaped support is connected on objective table adjusting screw(rod), the lower end of described objective table adjusting screw(rod) is hinged on described slide trolley framework respectively, each described objective table adjusting screw(rod) is connected with two objective table setting nuts respectively, two objective table setting nuts are clamped in the upper and lower both sides, middle part of corresponding U-shaped support respectively.
10. fuel tank noise testing simulation brake test table according to any one of claim 1 to 9, is characterized in that: described slide trolley is provided with velograph and accelerometer.
CN201310399146.3A 2013-09-05 2013-09-05 Fuel tank noise testing simulation brake test table CN103454056B (en)

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CN105136441A (en) * 2015-08-24 2015-12-09 奇瑞汽车股份有限公司 System used for detecting operation vibration and noise characteristics of automobile fuel pump and fuel tank assembly and method
CN105628394B (en) * 2015-12-22 2018-05-08 芜湖顺荣汽车部件有限公司 The noise measuring method of fuel tank
CN106523472B (en) * 2016-11-14 2018-05-29 安徽合力股份有限公司 A kind of experimental rig for hydraulic oil tank of forklift
CN107588916B (en) * 2017-08-08 2020-06-09 扬州大学 Fuel tank noise measurement drive test bed
CN109459128A (en) * 2018-09-27 2019-03-12 上海理工大学 A kind of fuel tank of vehicle oil liquid whine noise test macro
CN109916503A (en) * 2019-03-22 2019-06-21 重庆长安汽车股份有限公司 A kind of fuel tank rocks sounding method for testing

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