CN201193664Y - Damping fiber container for transmission shaft - Google Patents
Damping fiber container for transmission shaft Download PDFInfo
- Publication number
- CN201193664Y CN201193664Y CNU2007200948334U CN200720094833U CN201193664Y CN 201193664 Y CN201193664 Y CN 201193664Y CN U2007200948334 U CNU2007200948334 U CN U2007200948334U CN 200720094833 U CN200720094833 U CN 200720094833U CN 201193664 Y CN201193664 Y CN 201193664Y
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- damping
- tube
- vibration
- paper web
- 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 - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 45
- 238000013016 damping Methods 0.000 title claims abstract description 30
- 239000000835 fiber Substances 0.000 title 1
- 239000000123 paper Substances 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 6
- 230000001133 acceleration Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model relates to a transmission shaft damping paper container, which is characterized in that the inner wall of a long cylinder-shaped transmission shaft tube is sheathed with a cylinder-shaped damping cardboard; the density of the damping cardboard is 0.5g/ cm3- 0.8g/cm3; the thickness of the damping cardboard is more than 2 mm. A cylinder-shaped cardboard is inserted into a hollow shaft tube as a damping component for reducing and preventing the vibration and the noise of the transmission shaft; the outer wall of the cylinder-shaped cardboard compactly clings to the inner surface of the transmission shaft tube; because the damping reduction effect to the vibration of a paper tube is much more than that of a steel tube, the paper tube is lined inside the steel tube to have the function of reducing the vibration and the noise of the transmission shaft, and the utility model is a damping type transmission shaft with light weight.
Description
Technical field:
The utility model relates to a kind of transmission shaft damping paper web, is used for the truck drive shaft damping.
Background technique:
In the design and manufacture process of automobile, owing to have the manufacturing tolerances of part and the matching gap between each part, make each transmission part at low speed or when running up, can produce different vibrations, these vibrations can be delivered on the hollow intermediate propeller shaft pipe, hollow intermediate propeller shaft pipe can be expanded as vibration unacceptable vibration and abnormal sound, thereby has reduced the travelling comfort of vehicle.Therefore automobile production producer must reasonably arrange transmission shaft when designing, and the reason at vibration noise produces adopts the suitable technique measure, can fundamentally control the generation that produces vibration and throat sound.The automobile of preposition rear-guard, multiselect is with the transmission shaft of band Hooke's joint, as the power transmitting deice between speed changer and the ransaxle.Owing to transmission shaft is carefully grown, under the effect of sole mass, the quality axis of transmission shaft has a side-play amount with respect to spin axis, certainly leads to an axis centrifugal force when rotating, make transmission shaft produce an eccentric amount of deflection, this amount of deflection can change along with the size of eccentric force.The rotation that is to say transmission shaft is accompanied by flexure vibrations.The frequency of this vibration is proportional to the rotating speed of transmission shaft.When the rotating speed of rotatingshaft will produce resonance phenomenon during near the solid natural frequency of joint arrangement, its ocsillator strenght sharply increases.
When amount of deflection is infinitely great, transmission shaft will be interrupted.In use, universal driving device is loosening, transmission shaft bending etc., can make all just that amount of deflection increases, and causes that transmission shaft is shimmy to make sound.
Because the existence of above product structure factor, make sometimes and can hear a kind of periodically rumbling sound in the running at high speed of automobile, the high more sound of the speed of a motor vehicle is big more, and the vehicle body operator cabin of shaking rocks when serious, hold steering wheel and numb, this phenomenon mostly be transmission shaft uneven shimmy due to.
Cause the uneven shimmy concrete reason of transmission shaft to have:
Serious pine such as Hooke's joint, slip joint is spacious, and transmission shaft bending, depression or two ends balance plate are lost, and intermediate support beam skew or fixing bolt are loosening, and transmission shaft and universal-joint fork have not destroyed constant speed transmission condition etc. on same plane.
The formation of Hooke's joint transmission shaft vibrating noise is caused by true joint angle and this body structure of cross axle; Be on the other hand when the universal joint acceleration is excessive, also can cause the excessive and generation noise of torsional vibration of power train; Untimely vibration and the noise of also can causing of installation, improper use and maintenance.
Summary of the invention:
The purpose of this utility model is to provide a kind of transmission shaft damping paper web, adopted paper tube cylindraceous has been inserted in the driving sleeve as cushioning members, the paper web wall is closely knit, and the outer surface of paper tube is close to the internal surface of driving sleeve, thereby has realized suppressing the shock-absorbing function of transmission shaft vibration.
The technical solution of the utility model is achieved in that a kind of transmission shaft damping paper web, it is characterized in that: microscler cylindric transmission shaft tube inner wall sleeve is equipped with tubular damping paper web; The density of damping paper web is at 0.5g/cm
3～0.8g/cm
3The thickness of damping paper web is greater than 2mm.The outer wall of tubular paper web and the internal surface of transmission shaft tube closely paste and.
Good effect of the present utility model is by inserting paper tube cylindraceous as cushioning members in hollow central siphon, reduce and prevent the vibration and the noise of transmission shaft, the outer wall of circular paper tube and the internal surface of transmission shaft tube fit tightly, because paper tube is far longer than steel pipe to the damping vibration attenuation effect of vibration, so can well play the effect of lowering transmission shaft vibration and noise at steel duct lining last layer paper tube; It is the lighter shock-absorbing type transmission shaft of a kind of weight.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described: as shown in Figure 1, a kind of transmission shaft damping paper web is characterized in that: microscler cylindric transmission shaft tube 1 inner wall sleeve is equipped with tubular damping paper web 2; The density of damping paper web 2 is at 0.5g/cm
3～0.8g/cm
3The thickness of damping cardboard 2 is greater than 2mm.The internal surface of the outer wall of tubular cardboard 2 and transmission shaft tube 1 closely paste and.
At first choose suitable cardboard, on reeling machine cardboard is rolled into tubular, the external diameter of paper web will accurately be controlled; Cover is packed in the transmission shaft tube.
Select the driving-shaft assembly of two kinds of same sizes, promptly one is hollow central siphon, and another root is that the utility model damping paper web carries out the vibration attenuation comparative trial:
Table 1. test instrument and equipment
| Sequence number | Title | Model | Sequence number | Manufacturer |
| 1 | LMS Test.Lab modal analysis system | SC316W | 41051709 | Belgium LMS company |
| 2 | The power hammer | 9722A500 | C142160 | U.S. KISTLER company |
| 3 | Acceleration transducer | 8776A50M3 | C145499 etc. | U.S. KISTLER company |
Subjects sees Table 2,
Table 2. testpieces and characteristics thereof
| Numbering | Specification | Packing material | Remarks |
| 1 | φ 120, wall thickness 4mm, length 1005mm | Blank pipe | |
| 2 | φ 120, wall thickness 4mm, length 1005mm | Damping plate made of paper | Inner tube wall paster system damping plate |
Test specimen is got up with spring suspended, make it to be in " freedom-freedom " state, go up in test specimen Vertical direction (radially) and arrange 7 acceleration transducers, firmly hammer adds excitation in the end, surveys first order resonance frequency, damping ratio and the vibration shape of each test specimen.
Go up 1 acceleration transducer of layout in test specimen middle part Vertical direction (radially), firmly hammer excitation of Vertical direction in its vicinity obtains transfer curve and time-domain response curve.
Experiment shows: the transfer curve peak amplitude maximum of empty transmission shaft tube is 8.86g/N; And that transfer curve peak amplitude of the present utility model descends is very big, is 0.79g/N, and both are than being 11 times.
The vibration attenuation time of empty transmission shaft tube is 5946ms; And the vibration attenuation time of the present utility model is 198ms, illustrates that vibration attenuation of the present utility model is very fast.
Claims (2)
1. transmission shaft damping paper web, it is characterized in that: microscler cylindric transmission shaft tube (1) inner wall sleeve is equipped with tubular damping paper web (2), and the paper web wall is closely knit; The density of damping paper web (2) is at 0.5g/cm
3～0.8g/cm
3The thickness of vibration damping shake tube (2) is greater than 2mm.
2. transmission shaft damping paper web according to claim 1, the internal surface that it is characterized in that the outer wall of described tubular paper web (2) and transmission shaft tube (1) closely paste and.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200948334U CN201193664Y (en) | 2007-12-21 | 2007-12-21 | Damping fiber container for transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200948334U CN201193664Y (en) | 2007-12-21 | 2007-12-21 | Damping fiber container for transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201193664Y true CN201193664Y (en) | 2009-02-11 |
Family
ID=40393200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200948334U Expired - Lifetime CN201193664Y (en) | 2007-12-21 | 2007-12-21 | Damping fiber container for transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201193664Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673718A (en) * | 2014-11-21 | 2016-06-15 | 许成钰 | Automobile transmission shaft capable of reducing noise and absorbing shock |
-
2007
- 2007-12-21 CN CNU2007200948334U patent/CN201193664Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673718A (en) * | 2014-11-21 | 2016-06-15 | 许成钰 | Automobile transmission shaft capable of reducing noise and absorbing shock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA FAW CO., LTD. Free format text: FORMER OWNER: CHINESE AUTO GROUP CO NO.1 Effective date: 20111114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111114 Address after: 130011 No. 2259 Dongfeng Avenue, West New Economic and Technological Development Zone, Changchun Patentee after: China FAW Group Corporation Address before: 130011 Dongfeng Street, Jilin, Changchun, No. 2259 Patentee before: China FAW Group Corporation |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090211 |
|
| CX01 | Expiry of patent term |