CN212774535U - Noise reduction cover for engine gear chamber - Google Patents
Noise reduction cover for engine gear chamber Download PDFInfo
- Publication number
- CN212774535U CN212774535U CN202021578875.7U CN202021578875U CN212774535U CN 212774535 U CN212774535 U CN 212774535U CN 202021578875 U CN202021578875 U CN 202021578875U CN 212774535 U CN212774535 U CN 212774535U
- Authority
- CN
- China
- Prior art keywords
- cover body
- column
- gear chamber
- cover
- fixedly connected
- 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
- 230000035939 shock Effects 0.000 claims abstract description 28
- 238000013016 damping Methods 0.000 claims description 37
- 238000010521 absorption reaction Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 13
- 239000011094 fiberboard Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
Images
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Gears, Cams (AREA)
Abstract
The utility model discloses a cover of making an uproar falls in engine gear room, including the cover body and damper, the cover body with damper fixed connection, damper includes outer shock attenuation post, interior shock attenuation post, pressure spring and supports and hold the board, when engine operation produced the vibration, interior shock attenuation post is in outer shock attenuation post's inside is constantly stretched out and drawn back to offset part vibrations, just support and hold the board and be in support of pressure spring is closely laminated with the engine all the time under the effect, thereby reduces the vibration of engine, makes the noise that engine vibration brought reduce, has solved the big problem of engine gear room vibration noise.
Description
Technical Field
The utility model relates to an engine gear room technical field especially relates to a cover of making an uproar falls in engine gear room.
Background
At present, most engine gear chambers wrap gears through covers of the engine gear chambers, and the functions of protecting and sealing the gears are achieved. With the increasing requirements of people on engines, the reduction of the noise and vibration of the engines is bound to become a future technology trend. The existing engine gear chamber is an integral iron casting, the natural frequency of the existing engine gear chamber is close to that of the whole engine, resonance is easy to generate with the whole engine, and vibration noise is large.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cover of making an uproar falls in engine gear room aims at solving the big problem of engine gear room vibration noise.
In order to achieve the purpose, the utility model provides a noise reduction cover of an engine gear chamber, which comprises a cover body and a damping component, the cover body is fixedly connected with the damping component, the damping component comprises an outer damping column, an inner damping column, a pressure spring and a supporting plate, one end of the outer shock absorption column is fixedly connected with the cover body, one end of the outer shock absorption column, which is far away from the cover body, is provided with an accommodating cavity, one end of the pressure spring is fixedly connected with the outer shock absorption column, the other end of the pressure spring is fixedly connected with the inner shock absorption column, the pressure spring is positioned in the containing cavity, the inner shock absorption column is connected with the outer shock absorption column in a sliding way, the inner shock absorption column is positioned at one end of the outer shock absorption column far away from the cover body, the inner shock absorption column is positioned in the accommodating cavity, the abutting plate is fixedly connected with the inner damping column and is positioned at one end, far away from the outer damping column, of the inner damping column.
The cover body is provided with a plurality of threaded holes at intervals in the circumferential direction of the axis of the cover body, and the cover body is fixedly connected with the gear chamber through a plurality of screws.
The engine gear chamber noise reduction cover further comprises a rubber pad, the rubber pad is fixedly connected with the abutting plate and is located at one end, far away from the inner shock absorption column, of the abutting plate.
Wherein the cover body is provided with a groove.
The noise reduction cover for the engine gear chamber further comprises a fiber board, wherein the fiber board is fixedly connected with the cover body and is located on one side of the outer shock absorption column, which is arranged on the cover body.
The noise reduction cover for the engine gear chamber further comprises a sealing ring, the cover body is provided with an annular installation cavity, the sealing ring is fixedly connected with the cover body, and the sealing ring is located inside the annular installation cavity.
The cover body is provided with a positioning support, and the positioning support and the cover body are integrally formed.
Wherein the cover body is made of a clad steel plate.
The utility model discloses a cover of making an uproar falls in engine gear room, when the engine operation produced the vibration, interior shock-absorbing post is in the inside of outer shock-absorbing post is constantly stretched out and drawn back to offset partial vibrations, just support and hold the board and be in support of pressure spring is closely laminated with the engine all the time under the effect, thereby reduces the vibration of engine, makes the noise reduction that engine vibration brought, has solved the big problem of engine gear room vibration noise.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the noise reduction cover for the engine gear chamber of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1 according to the present invention.
The vibration damping device comprises a cover body 1, a threaded hole 11, a groove 12, an annular mounting cavity 13, a positioning support 14, a damping component 2, an outer damping column 21, an accommodating cavity 211, an inner damping column 22, a pressure spring 23, a pressing spring 24, a supporting plate 3, a rubber pad 4, a fiber board 5 and a sealing ring 5.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a noise reduction cover for an engine gear chamber comprises a cover body 1 and a damping component 2, wherein the cover body 1 is fixedly connected with the damping component 2, the damping component 2 comprises an outer damping column 21, an inner damping column 22, a pressure spring 23 and a supporting plate 24, one end of the outer damping column 21 is fixedly connected with the cover body 1, one end, far away from the cover body 1, of the outer damping column 21 is provided with an accommodating cavity 211, one end of the pressure spring 23 is fixedly connected with the outer damping column 21, the other end of the pressure spring 23 is fixedly connected with the inner damping column 22, the pressure spring 23 is positioned in the accommodating cavity 211, the inner damping column 22 is slidably connected with the outer damping column 21, the inner damping column 22 is positioned at one end, far away from the cover body 1, of the outer damping column 21, the inner damping column 22 is positioned in the accommodating cavity 211, and the supporting plate 24 is fixedly connected with the inner damping column 22, the holding plate 24 is located at one end of the inner shock absorbing column 22 far away from the outer shock absorbing column 21.
In this embodiment, the inner shock absorbing column 22 can slide inside the outer shock absorbing column 21, the abutting plate 24 abuts against the engine, and then the cover body 1 is fixedly mounted on the gear chamber, when the engine vibrates during operation, the inner shock absorbing column 22 continuously extends and retracts inside the outer shock absorbing column 21, so as to offset part of the vibration, and the abutting plate 24 is always tightly attached to the engine under the abutting action of the pressure spring 23, so that the vibration of the engine is reduced, the noise caused by the vibration of the engine is reduced, and the problem of large vibration noise of the gear chamber of the engine is solved.
Furthermore, the cover body 1 is provided with a plurality of threaded holes 11 at intervals around the circumferential direction of the axis of the cover body, and the cover body 1 is fixedly connected with the gear chamber through a plurality of screws.
In this embodiment, the gear room with the corresponding position of cover 1 junction has a plurality of screw holes 11 equally, cover 1 and gear room carry out fixed connection through a plurality of screws for be connected firmly and easy dismounting between cover 1 and the gear room.
Further, the noise reduction cover for the engine gear chamber further comprises a rubber pad 3, and the rubber pad 3 is fixedly connected with the abutting plate 24 and is located at one end, far away from the inner shock absorption column 22, of the abutting plate 24.
In the present embodiment, the rubber pad 3 is attached to the engine, and the abutting plate 24 acts on the rubber pad 3 to abut against the engine, thereby protecting the engine.
Further, the cover 1 has a groove 12.
In this embodiment, after the cover body 1 is connected to the gear chamber, a cavity is formed at the groove 12 of the cover body 1, so that noise generated in the gear chamber can be absorbed and reduced.
Further, the noise reduction cover for the engine gear chamber further comprises a fiber board 4, wherein the fiber board 4 is fixedly connected with the cover body 1 and is located on one side of the outer shock absorption column 21, which is arranged on the cover body 1.
In the present embodiment, the fiberboard 4 is located on the side of the cover 1 close to the gear chamber, and the fiberboard 4 is an a-stage resistance noise baffle, and can isolate noise from being transmitted to the outside of the gear chamber of the engine, thereby reducing noise that can be heard by the outside.
Further, the noise reduction cover for the engine gear chamber further comprises a sealing ring 5, the cover body 1 is provided with an annular mounting cavity 13, the sealing ring 5 is fixedly connected with the cover body 1, and the sealing ring 5 is located inside the annular mounting cavity 13.
In the present embodiment, a sealing ring 5 is provided at a joint between the cover body 1 and the gear chamber, and the sealing ring 5 seals the gear chamber to reduce noise transmitted from the gear chamber to the outside of the gear chamber.
Further, the cover body 1 is provided with a positioning bracket 14, and the positioning bracket 14 and the cover body 1 are integrally formed.
In this embodiment, the cover body 1 is provided with the locating support 14, the gear room be equipped with locating support 14 assorted constant head tank, during the installation the cover body 1, will locating support 14 inserts in the constant head tank, in order to right the cover body 1 advances line location, thereby makes things convenient for the installation of the cover body 1.
Further, the cover body 1 is made of a clad steel plate.
In the present embodiment, the cover body 1 is made of a clad steel plate, which can increase the service life of the cover body 1.
In this embodiment, the cover is made of clad steel sheet, which can increase the service life of the cover.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (8)
1. The noise reduction cover for the engine gear chamber is characterized by comprising a cover body and a damping component, wherein the cover body is fixedly connected with the damping component, the damping component comprises an outer damping column, an inner damping column, a pressure spring and a supporting plate, one end of the outer damping column is fixedly connected with the cover body, one end of the outer shock absorption column, which is far away from the cover body, is provided with an accommodating cavity, one end of the pressure spring is fixedly connected with the outer shock absorption column, the other end of the pressure spring is fixedly connected with the inner shock absorption column, the pressure spring is positioned in the containing cavity, the inner shock-absorbing column is connected with the outer shock-absorbing column in a sliding way, the inner shock-absorbing column is positioned at one end of the outer shock-absorbing column far away from the cover body, the inner damping column is located inside the containing cavity, the abutting plate is fixedly connected with the inner damping column, and the abutting plate is located at one end, far away from the outer damping column, of the inner damping column.
2. The noise reduction cover for the engine gear chamber according to claim 1, wherein the cover body is provided with a plurality of threaded holes at intervals in the circumferential direction around the axis of the cover body, and the cover body is fixedly connected with the gear chamber through a plurality of screws.
3. The engine gear chamber noise reduction cover of claim 2, further comprising a rubber pad fixedly connected to the retaining plate and located at an end of the retaining plate away from the inner shock post.
4. The noise reduction cover for an engine gear chamber according to claim 3, wherein the cover body has a recess.
5. The engine gear chamber noise reduction cover of claim 4, further comprising a fiberboard fixedly connected with the cover body and located at a side of the cover body where the outer shock absorbing column is located.
6. The engine gear chamber noise reduction cover of claim 5, further comprising a sealing ring, wherein the cover body is provided with an annular mounting cavity, the sealing ring is fixedly connected with the cover body, and the sealing ring is located inside the annular mounting cavity.
7. The noise reduction cover for the engine gear chamber as claimed in claim 6, wherein the cover body is provided with a positioning bracket, and the positioning bracket is integrally formed with the cover body.
8. The noise reduction cover for an engine gear chamber according to claim 7, wherein the cover body is made of a clad steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021578875.7U CN212774535U (en) | 2020-08-03 | 2020-08-03 | Noise reduction cover for engine gear chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021578875.7U CN212774535U (en) | 2020-08-03 | 2020-08-03 | Noise reduction cover for engine gear chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212774535U true CN212774535U (en) | 2021-03-23 |
Family
ID=75050046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021578875.7U Expired - Fee Related CN212774535U (en) | 2020-08-03 | 2020-08-03 | Noise reduction cover for engine gear chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212774535U (en) |
-
2020
- 2020-08-03 CN CN202021578875.7U patent/CN212774535U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210323 |