CN207437202U - A kind of engine noise reduction sound insulation lubricating oil pump - Google Patents
A kind of engine noise reduction sound insulation lubricating oil pump Download PDFInfo
- Publication number
- CN207437202U CN207437202U CN201721333671.5U CN201721333671U CN207437202U CN 207437202 U CN207437202 U CN 207437202U CN 201721333671 U CN201721333671 U CN 201721333671U CN 207437202 U CN207437202 U CN 207437202U
- Authority
- CN
- China
- Prior art keywords
- oil pump
- lubricating oil
- insulating pad
- sound insulating
- cover board
- 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
Abstract
The utility model discloses a kind of engine noise reduction sound insulation lubricating oil pump, blimp including the pump housing and arranged on pump housing shell, the blimp includes sound insulating pad, cover board and more limited posts, the sound insulating pad has the gusset contoured surface being adapted with pump housing shell shape and bottom surface, the more limited posts are fed through the sound insulating pad, the /V column bottom is fixed on the pump housing shell, the /V top end offers bolt hole, the top surface that the cover board is close to sound insulating pad is set, the cover board is equipped with the through hole being adapted with bolt hole with the corresponding position of more limited posts.The utility model increases blimp in oil pump gear and Oil pump drive gear housing corresponding position, the noise generated in lubricating oil pump operation process is obstructed, propagation amount of the noise to environment is reduced, while the frequency noise generated according to different lubricating oil pump selects the acoustic material of different densities best to achieve the effect that.
Description
Technical field
The utility model is related to machine oil pump technical fields, particularly a kind of engine noise reduction sound insulation lubricating oil pump.
Background technology
Engine oil pump be by engine crankshaft drive machine oil is increased to certain pressure after, it is compulsory to be sent to hair
On the moving surface of each part of motivation, machine oil is made to be cycled in road is lubricated, to ensure that engine obtains good lubrication.
External tooth wheel-type lubricating oil pump on the market is mainly driven by oil pump casing 100, oil pump gear 200, lubricating oil pump now
300 grade of moving gear is formed, since oil pump gear 200 and Oil pump drive gear 300 in the prior art are only by oil pump casing
100 coverings, since gear pair engagement can generate larger noise and vibration in lubricating oil pump operation process, vehicle NVH is generated compared with
It is big to influence.
Noise reduction means of the prior art are generally divided into two kinds：One for reduce noise source generate noise, secondly for
The process that noise is propagated to environment by noise source is obstructed, and the wherein second way is smaller to the structural modification of lubricating oil pump, just
In popularization, but there is also a problem, the shell shape and frequency noise of exactly various engine oil pumps differ, because
This design a applicability extensively, the sound insulation of the acoustic material that can flexibly be arranged in pairs or groups according to the frequency noise of different model lubricating oil pump dress
It puts necessary.
Utility model content
The purpose of this utility model is to provide a kind of engine noise reduction sound insulation lubricating oil pump, to solve technology of the prior art
Problem increases blimp, to being produced in lubricating oil pump operation process in oil pump gear and Oil pump drive gear housing corresponding position
Raw noise is obstructed, and reduces propagation amount of the noise to environment, while the frequency noise generated according to different lubricating oil pump is selected
The acoustic material of different densities is best to achieve the effect that.
The utility model provides a kind of engine noise reduction sound insulation lubricating oil pump, including the pump housing and arranged on pump housing shell every
Sound cover, the blimp include sound insulating pad, cover board and more limited posts, and the sound insulating pad has mutually fits with pump housing shell shape
The gusset contoured surface matched somebody with somebody and bottom surface, the more limited posts are fed through the sound insulating pad, and the /V column bottom is fixed on described
On pump housing shell, the /V top end offers bolt hole, and the top surface that the cover board is close to sound insulating pad is set, the cover board with
The corresponding position of more limited posts is equipped with the through hole being adapted with bolt hole.
A kind of engine noise reduction sound insulation lubricating oil pump as described above, these, it is preferred to, the cover board is that thickness is 2mm
Stainless steel plate.
A kind of engine noise reduction sound insulation lubricating oil pump as described above, these, it is preferred to, the cover board concavity is formed
Two recessed circles.
A kind of engine noise reduction sound insulation lubricating oil pump as described above, these, it is preferred to, the limited post is set to three,
It is sandwiched in around supporting at the gusset profile of sound insulating pad.
A kind of engine noise reduction sound insulation lubricating oil pump as described above, these, it is preferred to, the limited post and pump housing shell
Integrated molding.
Compared with prior art, the utility model on pump housing shell by setting blimp, to lubricating oil pump operation process
The noise of middle generation is obstructed, and effectively reduces propagation amount of the noise source to environment, promotes complete machine NVH performances, promotes product
Competitiveness, and the sound insulating pad of blimp is removably fixed by cover board, the frequency noise that can be generated according to different lubricating oil pump selects
Achieved the effect that with the sound insulating pad of different densities best.
Description of the drawings
Fig. 1 is the structure diagram of the shell of external gear lubricating oil pump and oil pump gear in the prior art；
Fig. 2 is the axonometric drawing of the utility model；
Fig. 3 is the axonometric drawing under the pump housing and blimp discrete state of Fig. 2；
Fig. 4 is the structure diagram of blimp.
Reference sign：The 1- pump housings, 2- sound insulating pads, 3- cover boards, 4- limited posts, 5- bolts hole, 6- through holes, 100- machine oil
Pump case, 200- oil pump gears, 300- Oil pump drive gears.
Specific embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and cannot be construed to the utility model
Limitation.
The embodiment of the utility model：As shown in Figures 2 to 4, a kind of engine noise reduction sound insulation lubricating oil pump, including the pump housing 1
And the blimp arranged on 1 shell of the pump housing, in the present embodiment, where blimp is arranged on the oil pump gear of the pump housing outside cavity, and
Fully wrapped around firmly cavity where oil pump gear, the blimp includes sound insulating pad 2, cover board 3 and more limited posts 4, described
Sound insulating pad 2 has the gusset contoured surface that is adapted with 1 shell shape of the pump housing and a bottom surface, 2 material of sound insulating pad for sound-proof material or other
Sound insulation polymer is fed through the sound insulating pad 2,4 bottom of limited post in the present embodiment with polyurethane, the more limited posts 4
Portion is fixed on 1 shell of the pump housing, and 4 top of limited post offers bolt hole 5, and the cover board 3 is close to the top of sound insulating pad 2
Face is set, and the cover board 3 is equipped with the through hole 6 being adapted with bolt hole 5, more /Vs with the corresponding position of more limited posts 4
Column 4 limits the transverse shifting of sound insulating pad 2, and cover board 3 limits the longitudinal movement of sound insulating pad 2, outside cover board 3, limited post 4 and the pump housing 1
Shell collectively forms the fixed space of sound insulating pad 2 so that sound insulating pad 2 can be fitted closely in 1 shell of the pump housing, and sound insulating pad 2 is easy to
Dismounting and change.
The present embodiment carries out the noise generated in lubricating oil pump operation process by setting blimp on 1 shell of the pump housing
Barrier effectively reduces propagation amount of the noise source to environment, promotes complete machine NVH performances, promotion product competitiveness, and blimp
Sound insulating pad 2 is removably fixed by cover board 3, and the frequency noise that can be generated according to different lubricating oil pump selects the sound insulation of different densities
Pad 2 is best to achieve the effect that.
As the optimal technical scheme of the present embodiment, the cover board 3 is the stainless steel plate that thickness is 2mm, in the cover board 3
Centre recess forms two recessed circles, can effectively improve stainless steel plate intensity, be unlikely to deform.
As the optimal technical scheme of the present embodiment, the limited post 4 is set to three, around to the side for being sandwiched in sound insulating pad 2
It enclosing at profile, limited post 4 is to clamping sound insulating pad 2, and sound insulating pad 2 does not have to perforation, and such sound insulating pad 2 is molded simply, reduces cost,
And 3 points of clampings of limited post 4, it is again fixed simultaneously to save material.
As the optimal technical scheme of the present embodiment, the limited post 4 and 1 shell integrated molding of the pump housing pass through one
Chemical conversion type, structure is even closer securely, and sound insulating pad 2 and the fitting of 1 shell of the pump housing are even closer, and soundproof effect is more preferable.
The structure, feature and effect of the utility model are described in detail based on the embodiments shown in the drawings, with
Upper described is only the preferred embodiment of the utility model, but the utility model is to limit practical range shown in drawing, it is every according to
Change that conception according to the utility model is made or the equivalent embodiment for being revised as equivalent variations, still without departing from specification and figure
When showing covered spirit, it should be within the protection scope of the present utility model.
Claims (5)
1. a kind of engine noise reduction sound insulation lubricating oil pump, including the pump housing (1) and the blimp arranged on the pump housing (1) shell, feature
It is：The blimp includes sound insulating pad (2), cover board (3) and more limited posts (4), and the sound insulating pad (2) has and the pump housing
(1) the gusset contoured surface and bottom surface that shell shape is adapted, the more limited posts (4) are fed through the sound insulating pad (2), described
Limited post (4) bottom is fixed on the pump housing (1) shell, and limited post (4) top offers bolt hole (5), the lid
The top surface that plate (3) is close to sound insulating pad (2) is set, and the corresponding position of the cover board (3) and more limited posts (4) is equipped with and bolt
The through hole (6) that hole (5) is adapted.
2. engine noise reduction sound insulation lubricating oil pump according to claim 1, which is characterized in that the cover board (3) is for thickness
The stainless steel plate of 2mm.
3. engine noise reduction sound insulation lubricating oil pump according to claim 1 or 2, which is characterized in that cover board (3) central fovea
It falls into and forms two recessed circles.
4. engine noise reduction sound insulation lubricating oil pump according to claim 1, which is characterized in that the limited post (4) is set to three
Root is sandwiched in around supporting at the gusset profile of sound insulating pad (2).
5. engine noise reduction sound insulation lubricating oil pump according to claim 1, which is characterized in that the limited post (4) and the pump housing
(1) shell integrated molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721333671.5U CN207437202U (en) | 2017-10-17 | 2017-10-17 | A kind of engine noise reduction sound insulation lubricating oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721333671.5U CN207437202U (en) | 2017-10-17 | 2017-10-17 | A kind of engine noise reduction sound insulation lubricating oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437202U true CN207437202U (en) | 2018-06-01 |
Family
ID=62293258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721333671.5U Expired - Fee Related CN207437202U (en) | 2017-10-17 | 2017-10-17 | A kind of engine noise reduction sound insulation lubricating oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207437202U (en) |
-
2017
- 2017-10-17 CN CN201721333671.5U patent/CN207437202U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 Termination date: 20201017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |