CN106704026A - Gear chamber cover for engine noise reduction - Google Patents
Gear chamber cover for engine noise reduction Download PDFInfo
- Publication number
- CN106704026A CN106704026A CN201611170680.7A CN201611170680A CN106704026A CN 106704026 A CN106704026 A CN 106704026A CN 201611170680 A CN201611170680 A CN 201611170680A CN 106704026 A CN106704026 A CN 106704026A
- Authority
- CN
- China
- Prior art keywords
- gear chamber
- sound
- chamber cover
- damping device
- absorbing damping
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
- F02F7/008—Sound insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0085—Materials for constructing engines or their parts
Abstract
The invention discloses a gear chamber cover for engine noise reduction. The gear chamber cover comprises a gear chamber cover body, wherein a crankshaft oil seal mounting hole, a power steering pump mounting hole, a gear shaft oil seal mounting hole, a bolt fixing hole, a power steering pump double-end stud fixing hole, a boss hole for the whole vehicle installation, a gear cover and gear chamber faying surface, a fuel pump through gear tooth boss surface, a gear chamber body and power steering pump faying surface, a gear chamber cover and gear chamber faying surface, a pair of timing toothed belt tensioner push rod mounting holes and a pair of timing belt outdoor cover mounting holes are formed in and on the gear chamber cover body. A plurality of sound-absorbing shock absorbers are in bolted connection to the outer surface of the gear chamber cover body, the gear chamber cover body is made of die-casting aluminum materials, and the scheme of the sound-absorbing shock absorbers is adopted, so that the transmission mode of vibration energy of the gear chamber cover is changed, and noise sent from the gear chamber cover on the front end of an engine is effectively reduced.
Description
Technical field
The invention belongs to the technical field of diesel engine noise reduction gear chamber cover, specifically, it is related to a kind of engine noise reduction to use
Gear chamber cover.
Background technology
With development of world economy, the raising of living standards of the people, automobile has turned into generation essential during people live
Step instrument.Car noise has turned into an extremely important index for weighing automobile quality with vibration.In vehicle noise, engine
And its noise that associated part is produced accounts for more than the 1/2 of vehicle noise, how to effectively reduce engine noise is current garage
The important subject of industry.Because control engine combustion noise and mechanicalness noise in terms of engine performance by being influenceed, because
This noise reduction is limited, and the surface vibration radiated noise of engine that takes measures to be greatly lowered in structure is so that whole
Machine noise is greatly reduced.The seal members such as hood, lid, shell class are main surface emissivity vibration sources.
The content of the invention
For deficiency above-mentioned in the prior art, the present invention provides a kind of engine noise reduction gear chamber cover, this gear chamber
Lid changes the circulation way of gear chamber cover vibrational energy, is effectively reduced making an uproar of being given out on motor head gear chamber cover
Sound.
In order to achieve the above object, the solution of present invention use is：A kind of engine noise reduction gear chamber cover, including
Gear chamber cover body, gear chamber cover body is provided with crankshaft oil seal mounting hole, power-assisted steering pump mounting hole, gear shaft oil seal and installs
Hole, bolt fixing hole, power-assisted steering pump studs fixing hole, vehicle installation boss hole, gear cap and gear chamber binding face,
Fuel pump is crossed gear teeth boss face, gear chamber body and power-assisted steering pump binding face, gear chamber cover and gear chamber binding face, one is aligned
When cingulum stretcher push rod mounting hole and a pair of Timing Belt rooms outside cover mounting hole；Gear chamber cover body outer surface bolt connection has
Some sound-absorbing damping devices, sound-absorbing damping device includes the first sound-absorbing damping device, the second sound-absorbing damping device, the 3rd sound-absorbing damping device, the
Four sound-absorbing damping devices；Gear cap and gear chamber binding face are externally provided with first annular joint face, and the first sound-absorbing damping device is arranged on the
One annular joint face surface；Second sound-absorbing damping device is arranged on fuel pump and crosses gear teeth boss face surface；Gear shaft oil seal mounting hole
The second annular joint face is externally provided with, the 3rd sound-absorbing damping device is arranged on the second annular joint face surface；First annular joint face with
The 3rd joint face is provided between second annular joint face, the 4th sound-absorbing damping device is arranged on the 3rd joint face surface.
Further, the first sound-absorbing damping device is provided with 4, and 4 sound-absorbing damping device equidistant rings are distributed in first annular company
Junction surface.
Further, gear chamber cover body uses die casting aluminum.
Further, sound-absorbing damping device is set to cylinder.
Further, sound-absorbing damping device includes metal level and rubber layer.
The beneficial effects of the invention are as follows, gear chamber cover body uses die casting aluminum, and using the side of sound-absorbing damping device
Case, changes the circulation way of gear chamber cover vibrational energy, is effectively reduced making an uproar of being given out on motor head gear chamber cover
Sound.
Brief description of the drawings
Fig. 1 is the stereogram of engine noise reduction gear chamber cover of the invention.
Fig. 2 is the stereogram that engine noise reduction gear chamber cover of the invention does not install sound-absorbing damping device.
Fig. 3 is the rearview of engine noise reduction gear chamber cover of the invention.
Fig. 4 is the stereogram of sound-absorbing damping device of the invention.
In accompanying drawing：
10th, gear chamber cover body；21st, gear shaft oil seal mounting hole；22nd, bolt fixing hole；23rd, power-assisted steering pump double end spiral shell
Post fixing hole；24th, vehicle installation boss hole；25th, timing belt stretcher push rod mounting hole；26th, peace is covered outside Timing Belt room
Dress hole；31st, gear cap and gear chamber binding face；32nd, fuel pump crosses gear teeth boss face；33rd, gear chamber body and power-assisted steering pump
Binding face；34th, gear chamber cover and gear chamber binding face；40th, sound-absorbing damping device；401st, metal level；402nd, rubber layer；41st, first
Sound-absorbing damping device；42nd, the second sound-absorbing damping device；43rd, the 3rd sound-absorbing damping device；44th, the 4th sound-absorbing damping device；51st, it is first annular
Joint face；52nd, the second annular joint face；53rd, the 3rd joint face.
Specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described：
The present invention provides a kind of engine noise reduction gear chamber cover, as shown in accompanying drawing 1 to accompanying drawing 3, including gear chamber cover sheet
Body 10, gear chamber cover body 10 be provided with crankshaft oil seal mounting hole, power-assisted steering pump mounting hole, gear shaft oil seal mounting hole 21,
Bolt fixing hole 22, power-assisted steering pump studs fixing hole 23, vehicle are installed and fitted with gear chamber with boss hole 24, gear cap
Face 31, fuel pump is crossed gear teeth boss face 32, gear chamber body and is fitted with gear chamber with power-assisted steering pump binding face 33, gear chamber cover
Face 34, a pair of timing belt stretcher push rod mounting holes 25 and cover mounting hole 26 outside a pair of Timing Belt rooms.Gear chamber body with
Power-assisted steering pump binding face 33, gear chamber cover and gear chamber binding face 34 are both needed to finishing, and wherein gear chamber cover is adopted with gear chamber
Sealed with gluing, it is to avoid oil leak；Gear chamber cover body 10 is provided with an alignment pin nail, is installed for gear chamber cover and positioned；
Bolt fixing hole 22 is fixedly connected for gear chamber cover body 10 with gear chamber.
The outer surface bolt connection of gear chamber cover body 10 has some sound-absorbing damping devices 40, bolt gluing.
Sound-absorbing damping device 40 includes the first sound-absorbing damping device 41, the second sound-absorbing damping device 42, the 3rd sound-absorbing damping device 43, the
Four sound-absorbing damping devices 44.
Gear cap and gear chamber binding face 31 are externally provided with first annular joint face 51, and the first sound-absorbing damping device 41 is arranged on the
The one annular surface of joint face 51, a diameter of 12mm of the first sound-absorbing damping device 41, is highly 10mm, and the first sound-absorbing damping device 41 is set
Between gear chamber cover body 10 and crank pulley.
Second sound-absorbing damping device 42 is arranged on fuel pump and crosses the surface of gear teeth boss face 32；Second sound-absorbing damping device 42 is a diameter of
50mm, highly be 35mm.
Gear shaft oil seal mounting hole 21 is externally provided with the second annular joint face 52, and the 3rd sound-absorbing damping device 43 is arranged on the second ring
The surface of shape joint face 52；3rd sound-absorbing damping device 43 is arranged on the oblique upper of gear shaft oil seal mounting hole 21, the 3rd sound-absorbing damping device
43 a diameter of 40mm, highly be 40mm.
The 3rd joint face 53, the 4th sound-absorbing damping device are provided between the annular joint face 52 of first annular joint face 51 and second
44 are arranged on the surface of the 3rd joint face 53；The a diameter of 25mm of 4th sound-absorbing damping device 44, highly be 35mm, the 4th sound-absorbing damping device
44 are arranged on fuel pump crosses the left oblique upper of gear teeth boss face 32.
In the present embodiment, the first sound-absorbing damping device 41 is provided with 4, and 4 equidistant rings of sound-absorbing damping device 40 are distributed in first
The surface of annular joint face 51.
In the present embodiment, gear chamber cover body 10 uses die casting aluminum, along with using sound-absorbing damping device 40, so as to change
Become the circulation way of gear chamber cover vibrational energy, be effectively reduced the noise given out on motor head gear chamber cover.
In the present embodiment, sound-absorbing damping device 40 is set to cylinder, as shown in Figure 4.
In the present embodiment, sound-absorbing damping device 40 includes metal level 401 and rubber layer 402, as shown in Figure 4.
Claims (5)
1. a kind of engine noise reduction gear chamber cover, including gear chamber cover body (10), gear chamber cover body (10) is provided with song
Shafting oil seal installation hole, power-assisted steering pump mounting hole, gear shaft oil seal mounting hole (21), bolt fixing hole (22), power-assisted steering pump
Studs fixing hole (23), vehicle installation boss hole (24), gear cap and gear chamber binding face (31), fuel pump cross the gear teeth
Boss face (32), gear chamber body and power-assisted steering pump binding face (33), gear chamber cover and gear chamber binding face (34), one align
When cingulum stretcher push rod mounting hole (25) and a pair of Timing Belt rooms outside cover mounting hole (26),
It is characterized in that：Gear chamber cover body (10) outer surface bolt connection has some sound-absorbing damping devices (40), sound-absorbing damping device
(40) including the first sound-absorbing damping device (41), the second sound-absorbing damping device (42), the 3rd sound-absorbing damping device (43), the 4th sound-absorbing damping
Device (44),
Gear cap is externally provided with first annular joint face (51) with gear chamber binding face (31), and the first sound-absorbing damping device (41) is arranged on
First annular joint face (51) surface,
Second sound-absorbing damping device (42) is arranged on fuel pump and crosses gear teeth boss face (32) surface,
Gear shaft oil seal mounting hole (21) is externally provided with the second annular joint face (52), and the 3rd sound-absorbing damping device (43) is arranged on second
Annular joint face (52) surface,
The 3rd joint face (53), the 4th sound-absorbing damping are provided between first annular joint face (51) and the second annular joint face (52)
Device (44) is arranged on the 3rd joint face (53) surface.
2. engine noise reduction gear chamber cover according to claim 1, it is characterized in that：The first described sound-absorbing damping device
(41) 4 are provided with, 4 sound-absorbing damping device (40) equidistant rings are distributed in first annular joint face (51) surface.
3. engine noise reduction gear chamber cover according to claim 1, it is characterized in that：Described gear chamber cover body (10)
Using die casting aluminum.
4. engine noise reduction gear chamber cover according to claim 1, it is characterized in that：Described sound-absorbing damping device (40) sets
It is cylinder.
5. the engine noise reduction gear chamber cover according to claim 1 or 4, it is characterized in that：Described sound-absorbing damping device
(40) including metal level (401) and rubber layer (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611170680.7A CN106704026A (en) | 2016-12-16 | 2016-12-16 | Gear chamber cover for engine noise reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611170680.7A CN106704026A (en) | 2016-12-16 | 2016-12-16 | Gear chamber cover for engine noise reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106704026A true CN106704026A (en) | 2017-05-24 |
Family
ID=58938011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611170680.7A Pending CN106704026A (en) | 2016-12-16 | 2016-12-16 | Gear chamber cover for engine noise reduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106704026A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930605A (en) * | 2018-09-06 | 2018-12-04 | 广西玉柴机器股份有限公司 | The sound insulation shade assembly of motor head gear chamber |
| CN112682211A (en) * | 2021-02-03 | 2021-04-20 | 第一拖拉机股份有限公司 | Rearmounted box gear room assembly convenient to dismouting idler gear subassembly |
| AT524018A4 (en) * | 2020-08-03 | 2022-02-15 | Avl List Gmbh | MACHINE HOUSING |
| CN114876662A (en) * | 2022-06-10 | 2022-08-09 | 哈尔滨东安汽车动力股份有限公司 | Synchronous chain housing energy absorption device based on NVH optimization |
-
2016
- 2016-12-16 CN CN201611170680.7A patent/CN106704026A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930605A (en) * | 2018-09-06 | 2018-12-04 | 广西玉柴机器股份有限公司 | The sound insulation shade assembly of motor head gear chamber |
| AT524018A4 (en) * | 2020-08-03 | 2022-02-15 | Avl List Gmbh | MACHINE HOUSING |
| AT524018B1 (en) * | 2020-08-03 | 2022-02-15 | Avl List Gmbh | MACHINE HOUSING |
| CN112682211A (en) * | 2021-02-03 | 2021-04-20 | 第一拖拉机股份有限公司 | Rearmounted box gear room assembly convenient to dismouting idler gear subassembly |
| CN112682211B (en) * | 2021-02-03 | 2022-04-26 | 第一拖拉机股份有限公司 | Rearmounted box gear room assembly convenient to dismouting idler gear subassembly |
| CN114876662A (en) * | 2022-06-10 | 2022-08-09 | 哈尔滨东安汽车动力股份有限公司 | Synchronous chain housing energy absorption device based on NVH optimization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |