CN200993070Y - Fuel injection pump drive shaft sound-isolating cover - Google Patents
Fuel injection pump drive shaft sound-isolating cover Download PDFInfo
- Publication number
- CN200993070Y CN200993070Y CN 200620160531 CN200620160531U CN200993070Y CN 200993070 Y CN200993070 Y CN 200993070Y CN 200620160531 CN200620160531 CN 200620160531 CN 200620160531 U CN200620160531 U CN 200620160531U CN 200993070 Y CN200993070 Y CN 200993070Y
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- China
- Prior art keywords
- cover body
- sound
- cover
- injection pump
- insulating
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- Expired - Fee Related
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- Fuel-Injection Apparatus (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a transmission shaft blimp for the fuel injection pump, characterized in that: the blimp shell is made from composite material and is arranged through rubber cushion. The utility model has the advantages of an evident noise attenuating effect and low noise produced, which is suitable to sound insulation for various transmission shafts of the fuel injection pump of the diesel engine.
Description
Technical field
The utility model relates to a kind of sound-insulating cover, particularly a kind of sound-insulating cover that is used for the diesel engine fuel injecting pump drive shaft.
Background technique
On diesel engine, the reason that Injection Pump transmission shaft and shaft joint are made an uproar because of vibration, wind becomes a main noise source, and for this reason, quite a few diesel engine uses sound-insulating cover to make noise reduction process in this position.Present sound-insulating cover is rigidly connected by bolt and motor, and uses conventional steel plates as cover material, and often noise reduction is not good, even becomes new noise source.
Summary of the invention
At the deficiencies in the prior art, the utility model provides a kind of Injection Pump transmission shaft sound-insulating cover of simple in structure, excellent noise reduction effect.
The utility model Injection Pump transmission shaft sound-insulating cover comprises the fixed component of cover body and cover body and engine body, and cover body adopts Clad Steel Plate to make, and cover body steel plate the inside fixedly installs sound absorbing material, and fixed component is fixed on cover body on the engine body.Sound absorbing material comprises acoustical cotton or sound-absorbing polymer material etc.The means of fixation of sound absorbing material and cover body can be included as modes such as stickup or riveted.
The fixed component of above-mentioned cover body and engine body comprises bolt and cover body damping fixed block, cover body cover body damping fixed block is the dihedral Steel Skeleton that is oppositely arranged, the yielding rubber cushion is set in the dihedral Steel Skeleton, the cover body edge is fixed between the yielding rubber cushion, and bolt is fixed on cover body damping fixed block on the engine body.Bolt and corresponding cover body damping fixed block are provided with 4 at least, generally need be provided with 4-8.
The utility model Injection Pump transmission shaft sound-insulating cover cover body itself adopts Clad Steel Plate to make, the fixing of cover body cushions by rubber mount, sound-insulating cover is flexible buffer with other metal parts and is connected, and has changed the vibration frequency of cover body and has avoided metal parts directly to touch and produce noise.The utility model is compared with existing sound-insulating cover, has following advantage:
1, cover body adopts composite material, and self vibrating noise is little and sound-absorbing effect good.
2, rubber mount or sound absorbing material buffering is all arranged between sound-insulating cover and other metal parts, reduce the noise that the cover body vibration produces, avoided metal to touch the noise of generation, simultaneously, because of considering that avoiding metal directly to contact keeps the space artificially between sound-insulating cover and conductively-closed object, make soundproof effect better.
Description of drawings
Fig. 1 is installed in structural representation on the motor for Injection Pump transmission shaft sound-insulating cover of the present utility model.
Fig. 2 is that Injection Pump transmission shaft sound-insulating cover of the present utility model is by beam and engine body linkage structure schematic representation.
Among Fig. 1～Fig. 2: 1-gear chamber cover plate; The 2-engine body; The 3-transmission shaft; 4-sound-insulating cover cover body; The 5-bolt; 6-damping fixed component; The 7-acoustical cotton; The 8-Injection Pump; 9-yielding rubber cushion; 10-damping fixed component Steel Skeleton.
Embodiment
Further specify the structure of the utility model Injection Pump transmission shaft sound-insulating cover below in conjunction with accompanying drawing.
For further reducing the noise of Injection Pump transmission shaft and shaft joint, technical solution of the present utility model is such, and cover body itself adopts Clad Steel Plate to make, and completely cuts off noise at sound absorbing materials such as inside stickup acoustical cottons.The fixing of cover body cushions by rubber mount, changed the vibration frequency of cover body and avoided metal parts directly to touch and produce noise.
With diesel engine the Injection Pump transmission shaft being carried out noise isolation below is that example describes.
Sound-insulating cover cover body 4 is fixed on the engine body by four bolts 5, and is fixing by damping fixed block 6 between sound-insulating cover cover body 4 and bolt 5, sound-insulating cover cover body 4 and the engine body 2.
The damping fixed block mainly is made up of damping fixed block dihedral Steel Skeleton 10 and yielding rubber cushion 9, after bolt 5 make-up torques, damping fixed block dihedral Steel Skeleton 10 is in contact with one another, and to guarantee that yielding rubber cushion 9 can too not pushed, guarantees that also bolt 5 can make-up torque simultaneously.At this moment, sound-insulating cover cover body 4 only contacts with yielding rubber cushion 9.
Paste except inside at sound-insulating cover cover body 4 and to be fixed with acoustical cotton 7 sound absorbing materials such as grade, and comprise as the less position, gap between the metal partss such as engine body 2, gear chamber cover plate 1 or Injection Pump 8, also paste acoustical cotton 7 sound absorbing materials such as grade are set, the sound absorbing material of these positions plays the effect that prevents that noise is excessive and prevent the direct contact-impact of metal parts.
Claims (6)
1, a kind of Injection Pump transmission shaft sound-insulating cover, the fixed component that comprises cover body and cover body and engine body, it is characterized in that: described cover body adopts Clad Steel Plate to make, and cover body steel plate the inside fixedly installs sound absorbing material, and fixed component is fixed on cover body on the engine body.
2, according to the described sound-insulating cover of claim 1, it is characterized in that: described sound absorbing material comprises acoustical cotton or sound-absorbing polymer material, and the means of fixation of sound absorbing material and cover body comprises pastes or riveted.
3, according to the described sound-insulating cover of claim 1, it is characterized in that: the fixed component of described cover body and engine body comprises bolt and cover body damping fixed block.
4, according to the described sound-insulating cover of claim 3, it is characterized in that: described cover body damping fixed block is the dihedral Steel Skeleton that is oppositely arranged, the yielding rubber cushion is set in the dihedral Steel Skeleton, the cover body edge is fixed between the yielding rubber cushion, and bolt is fixed on cover body damping fixed block on the engine body.
5, according to the described sound-insulating cover of claim 4, it is characterized in that: after the bolt make-up torque, the damping fixed block dihedral Steel Skeleton that is oppositely arranged is in contact with one another.
6, according to claim 1 or 3 described sound-insulating covers, it is characterized in that: described sound-insulating cover cover body and comprise less position, gap between engine body, gear chamber cover plate or the Injection Pump metal parts is provided with sound absorbing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620160531 CN200993070Y (en) | 2006-11-23 | 2006-11-23 | Fuel injection pump drive shaft sound-isolating cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620160531 CN200993070Y (en) | 2006-11-23 | 2006-11-23 | Fuel injection pump drive shaft sound-isolating cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200993070Y true CN200993070Y (en) | 2007-12-19 |
Family
ID=38946147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620160531 Expired - Fee Related CN200993070Y (en) | 2006-11-23 | 2006-11-23 | Fuel injection pump drive shaft sound-isolating cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200993070Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036525A (en) * | 2010-11-08 | 2011-04-27 | 苏州海格新能源汽车电控系统科技有限公司 | Rear cover for hybrid monitor |
| CN102192010A (en) * | 2010-03-03 | 2011-09-21 | 株式会社神户制钢所 | Sound shielding structure and sound shielding cover |
| CN102271967B (en) * | 2008-12-30 | 2014-10-29 | 沃尔沃拉斯特瓦格纳公司 | Engine arrangement comprising a noise shield |
| CN104595076A (en) * | 2015-02-12 | 2015-05-06 | 广西玉柴机器股份有限公司 | Soundproof housing of fuel injection pump transmission shaft |
| CN104895719A (en) * | 2015-06-19 | 2015-09-09 | 重庆长安汽车股份有限公司 | High-pressure oil pump mounting seat with sound insulation structure |
-
2006
- 2006-11-23 CN CN 200620160531 patent/CN200993070Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102271967B (en) * | 2008-12-30 | 2014-10-29 | 沃尔沃拉斯特瓦格纳公司 | Engine arrangement comprising a noise shield |
| CN102192010A (en) * | 2010-03-03 | 2011-09-21 | 株式会社神户制钢所 | Sound shielding structure and sound shielding cover |
| CN102192010B (en) * | 2010-03-03 | 2013-06-19 | 株式会社神户制钢所 | Sound shielding structure and sound shielding cover |
| CN102036525A (en) * | 2010-11-08 | 2011-04-27 | 苏州海格新能源汽车电控系统科技有限公司 | Rear cover for hybrid monitor |
| CN104595076A (en) * | 2015-02-12 | 2015-05-06 | 广西玉柴机器股份有限公司 | Soundproof housing of fuel injection pump transmission shaft |
| CN104895719A (en) * | 2015-06-19 | 2015-09-09 | 重庆长安汽车股份有限公司 | High-pressure oil pump mounting seat with sound insulation structure |
| CN104895719B (en) * | 2015-06-19 | 2017-08-01 | 重庆长安汽车股份有限公司 | A kind of high-pressure oil pump mounting seat with sound-insulating structure |
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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: 20071219 Termination date: 20101123 |