CN202522421U - Automobile NHV test auxiliary device - Google Patents
Automobile NHV test auxiliary device Download PDFInfo
- Publication number
- CN202522421U CN202522421U CN2012201007112U CN201220100711U CN202522421U CN 202522421 U CN202522421 U CN 202522421U CN 2012201007112 U CN2012201007112 U CN 2012201007112U CN 201220100711 U CN201220100711 U CN 201220100711U CN 202522421 U CN202522421 U CN 202522421U
- Authority
- CN
- China
- Prior art keywords
- auxiliary device
- mounting blocks
- contiguous block
- automobile
- attachment screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses an automobile NHV test auxiliary device and aims to settle defects that a mounting position of a sensor and a knocking position of a force-hammer are difficult to be selected when tests of dynamic stiffness and acoustic vibration transfer functions of a connection point of a vehicle subframe in the prior art are carried out. The automobile NHV test auxiliary device comprises a connection screw, wherein a screw cap end of the connection screw is fixedly connected with a mounting block through a connection block, and the mounting block is cuboid-shaped. A connection screw end of the test auxiliary device is used for connecting the vehicle subframe and a vehicle body. A sensor for a test is pasted at one side of the mounting block. A force-hammer knocks the other three sides of the mounting block to carry out tests of dynamic stiffness and acoustic vibration transfer functions of a connection point. Upward extension of the mounting block through the connection block provides enough space for knocks of the force-hammer. The automobile NHV test auxiliary device is convenient for selecting the mounting position of the sensor and the knocking position of the force-hammer.
Description
Technical field
The utility model relates to a kind of automobile test servicing unit, and more particularly, it relates to a kind of servicing unit that makes things convenient for automobile NVH test.
Background technology
To carry out the shake test of transport function of vehicle subframe tie point dynamic stiffness, sound in the automobile NVH test.To use the power hammer in the test to knocking near the subframe tie point, make the tie point position receive percussion vibration, be connected near the sensor acquisition test figure of tie point.Owing to receives the space of subframe tie point position and the restriction of angle, and will not knock sensor by assurance power hammer, so the beating position of the installation site of sensor and power hammer is difficult to select.
Chinese patent notification number CN201712672U; On January 19 2011 day for announcing, the name of utility model is called a kind of reinforced support of subframe, between subframe and vehicle body, connects reinforced support; Make being connected of subframe and vehicle body more reliable; But this subframe tie point carries out dynamic stiffness, when sound shakes the transport function test, receives the space of subframe tie point position and the restriction of angle, and the beating position of the installation site of sensor and power hammer is difficult to select.
The utility model content
The utility model has overcome that existing subframe tie point carries out dynamic stiffness, the beating position of installation site and the power hammer of sensor was difficult to the deficiency selected when sound shook the test of transport function; A kind of automobile NVH experiment auxiliary device is provided, and it has made things convenient for the installation site of sensor and the selection of the beating position that power is hammered into shape.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of automobile NVH experiment auxiliary device, comprise attachment screw, and the nut end of attachment screw is fixedly connected with mounting blocks through contiguous block, and mounting blocks is cuboid.The attachment screw end of experiment auxiliary device is used for auxiliary connection vehicle frame and vehicle body, and test is pasted on the side of mounting blocks with sensor, and power hammer knocks and carries out the shake test of transport function of tie point dynamic stiffness, sound on other three sides of mounting blocks.Contiguous block is connected on the nut; Mounting blocks is connected on the contiguous block, because mounting blocks has passed through the extension that contiguous block makes progress, to the space that provides enough of knocking of power hammer; And can knock the side of mounting blocks and make an experiment; Comprised horizontal knocking test and knock test longitudinally, not only satisfied testing requirements, and test figure has been accurate.This automobile NVH experiment auxiliary device has made things convenient for the installation site of sensor and the selection of the beating position that power is hammered into shape.
As preferably, contiguous block and mounting blocks all are the square bodily form, and the seamed edge length of contiguous block is less than the seamed edge length of mounting blocks, the center line of contiguous block and mounting blocks all with the dead in line of attachment screw.The center line of contiguous block and mounting blocks all with the dead in line of attachment screw, connect more reliable and more stable.
As preferably, contiguous block is welded on the nut of attachment screw, and mounting blocks is welded on the contiguous block.The connected mode of welding is simple, and it is firm to connect.
As preferably, the nut of attachment screw is regular hexagon, and the end of the double-screw bolt of attachment screw is conical cutting-edge structure.Nut is the rotation when regular hexagon is convenient to be connected.The end of double-screw bolt is this structure, and convenient the insertion in the connecting hole is located by connecting.
As preferably, the double-screw bolt of attachment screw and the link position of nut are provided with the packing ring with the double-screw bolt one.The poroid hole, the big footpath of connecting hole of packing ring and countersunk head is adaptive, has increased the contact area of attachment screw end face and web member, makes connection more reliable.
Compared with prior art, the beneficial effect of the utility model is: automobile NVH experiment auxiliary device has made things convenient for the installation site of sensor and the selection of the beating position that power is hammered into shape.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model;
Among the figure: 1, attachment screw, 2, nut, 3, contiguous block, 4, mounting blocks, 5, double-screw bolt, 6, packing ring.
Embodiment
Pass through specific embodiment below, and combine accompanying drawing, the technical scheme of the utility model is done further to specifically describe:
Embodiment: a kind of automobile NVH experiment auxiliary device (referring to accompanying drawing 1), comprise attachment screw 1, nut 2 ends of attachment screw 1 are fixedly connected with mounting blocks 4 through contiguous block 3.The nut 2 of attachment screw 1 is regular hexagon, and the end of the double-screw bolt 5 of attachment screw 1 is conical cutting-edge structure.Nut 2 is this structure with double-screw bolt 5 and makes things convenient for the location of attachment screw and rotation to install.The double-screw bolt 5 of attachment screw 1 and the link position of nut 2 are provided with the annular packing ring 6 with the double-screw bolt one.The poroid hole, the big footpath of connecting hole of packing ring 6 and countersunk head is adaptive, has increased the contact area of attachment screw 1 end face and web member, makes connection more reliable.Contiguous block 3 is welded on the nut 2 of attachment screw 1, and mounting blocks 4 is welded on the contiguous block 3.Contiguous block 3 all is the square bodily form with mounting blocks 4; And the seamed edge length of contiguous block 3 is less than the seamed edge length of mounting blocks 4; The center line of contiguous block 3 and mounting blocks 4 all with the dead in line of attachment screw 1; It is good to connect right alignment like this, whole test servicing unit good stability when knocking test, and experiment auxiliary device is difficult for being damaged.
The attachment screw end of experiment auxiliary device is used for auxiliary connection vehicle frame and vehicle body, and test is pasted on the side of mounting blocks with sensor, and power hammer knocks respectively and carries out the shake test of transport function of tie point dynamic stiffness, sound on other three sides of mounting blocks.Because mounting blocks has passed through the extension that contiguous block makes progress; To the space that provides enough of knocking of power hammer, and can knock the side of mounting blocks and make an experiment, comprise horizontal knocking test and knock test longitudinally; Not only satisfied testing requirements, and test figure is accurate.This automobile NVH experiment auxiliary device has made things convenient for the installation site of sensor and the selection of the beating position that power is hammered into shape.
Above-described embodiment is a kind of preferable scheme of the utility model, is not the utility model is done any pro forma restriction, under the prerequisite that does not exceed the technical scheme that claim puts down in writing, also has other variant and remodeling.
Claims (5)
1. an automobile NVH experiment auxiliary device is characterized in that, comprises attachment screw (1), and the nut of attachment screw (2) end is fixedly connected with mounting blocks (4) through contiguous block (3), and mounting blocks is cuboid.
2. automobile NVH experiment auxiliary device according to claim 1; It is characterized in that; Contiguous block and mounting blocks all are the square bodily form, and the seamed edge length of contiguous block is less than the seamed edge length of mounting blocks, the center line of contiguous block and mounting blocks all with the dead in line of attachment screw.
3. automobile NVH experiment auxiliary device according to claim 2 is characterized in that contiguous block is welded on the nut of attachment screw, and mounting blocks is welded on the contiguous block.
4. according to claim 1 or 2 or 3 described automobile NVH experiment auxiliary devices, it is characterized in that the nut of attachment screw is regular hexagon, the end of the double-screw bolt of attachment screw (5) is conical cutting-edge structure.
5. according to claim 1 or 2 or 3 described automobile NVH experiment auxiliary devices, it is characterized in that the double-screw bolt of attachment screw and the link position of nut are provided with the packing ring (6) with the double-screw bolt one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201007112U CN202522421U (en) | 2012-03-16 | 2012-03-16 | Automobile NHV test auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201007112U CN202522421U (en) | 2012-03-16 | 2012-03-16 | Automobile NHV test auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202522421U true CN202522421U (en) | 2012-11-07 |
Family
ID=47105364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201007112U Expired - Fee Related CN202522421U (en) | 2012-03-16 | 2012-03-16 | Automobile NHV test auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202522421U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198197A (en) * | 2014-09-11 | 2014-12-10 | 重庆长安汽车股份有限公司 | Method and device for testing dynamic stiffness of car-body mounting points |
| CN104483086A (en) * | 2014-12-25 | 2015-04-01 | 江铃汽车股份有限公司 | Method for evaluating NVH performance of engine cylinder |
| CN106289815A (en) * | 2016-07-22 | 2017-01-04 | 重庆长安汽车股份有限公司 | The sound of suspension damper vehicle body attachment point shakes and transmits function method of testing |
| CN108387350A (en) * | 2018-02-09 | 2018-08-10 | 上汽通用五菱汽车股份有限公司 | Vehicle body attachment point dynamic stiffness test method, device and storage medium |
| CN108414233A (en) * | 2018-01-29 | 2018-08-17 | 上汽通用五菱汽车股份有限公司 | A kind of test fixture of vehicle body attachment point dynamic stiffness |
-
2012
- 2012-03-16 CN CN2012201007112U patent/CN202522421U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198197A (en) * | 2014-09-11 | 2014-12-10 | 重庆长安汽车股份有限公司 | Method and device for testing dynamic stiffness of car-body mounting points |
| CN104483086A (en) * | 2014-12-25 | 2015-04-01 | 江铃汽车股份有限公司 | Method for evaluating NVH performance of engine cylinder |
| CN106289815A (en) * | 2016-07-22 | 2017-01-04 | 重庆长安汽车股份有限公司 | The sound of suspension damper vehicle body attachment point shakes and transmits function method of testing |
| CN108414233A (en) * | 2018-01-29 | 2018-08-17 | 上汽通用五菱汽车股份有限公司 | A kind of test fixture of vehicle body attachment point dynamic stiffness |
| CN108387350A (en) * | 2018-02-09 | 2018-08-10 | 上汽通用五菱汽车股份有限公司 | Vehicle body attachment point dynamic stiffness test method, device and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202522421U (en) | Automobile NHV test auxiliary device | |
| CN202012135U (en) | Connecting piece for building and building structure system applying the connecting piece thereof | |
| CN202017683U (en) | Hoop | |
| CN204545809U (en) | A kind of multi-functional welding Work fixing device | |
| CN201979429U (en) | Buffering device for turning fixtures | |
| CN203477608U (en) | Fixing pipe clamp used for pipeline | |
| CN203514654U (en) | Roof panel clamp | |
| CN202933786U (en) | Suspension and connection structure of electric dust collector anode plate | |
| CN202225160U (en) | Assembly and disassembly device for porcelain insulator base screw | |
| CN204692772U (en) | A kind of combination type supporting device for petroleum pipeline | |
| CN204068155U (en) | A kind of lead spacer with pooling feature | |
| CN204212417U (en) | A kind of bracing means of shear wall aluminum alloy mould plate | |
| CN203297275U (en) | Hexagon bolt | |
| CN202862192U (en) | Multifunctional tool towing bracket of welding adjustment line | |
| CN202449460U (en) | Saddle gear for horizontal storage tank | |
| CN201386386Y (en) | Integral template device used for chimney construction | |
| CN201981481U (en) | Lifting-up support used for highway and bridge | |
| CN204646890U (en) | Photovoltaic bracket multipurpose connects pipe box | |
| CN202466842U (en) | Steel column beam connecting joint structure | |
| CN204475328U (en) | A kind of reversely hung Yong anchor pole head | |
| CN202170534U (en) | Fixing device for loader water tank | |
| CN203558013U (en) | Luggage support for vehicle | |
| CN213932918U (en) | Tunnel construction monitoring devices | |
| CN203109434U (en) | Electrode cap replacing tool for position welding of projection welding automatic robot | |
| CN203254959U (en) | Installation structure of exhaust pipe hook |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20140316 |