CN202326904U - Vibration damping type fastening component for cylinder head cover of engine - Google Patents
Vibration damping type fastening component for cylinder head cover of engine Download PDFInfo
- Publication number
- CN202326904U CN202326904U CN201120458399XU CN201120458399U CN202326904U CN 202326904 U CN202326904 U CN 202326904U CN 201120458399X U CN201120458399X U CN 201120458399XU CN 201120458399 U CN201120458399 U CN 201120458399U CN 202326904 U CN202326904 U CN 202326904U
- Authority
- CN
- China
- Prior art keywords
- cylinder head
- head cover
- vibration damping
- engine
- rubber
- 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
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a vibration damping type fastening component for a cylinder head cover of an engine. The structure of the vibration damping type fastening component is that: a metal guard plate is integrated with a rubber block; the rubber block is embedded into a concave sheath; rubber layers are arranged on the lower end face of the bottom layer of the concave sheath; and the rubber block is provided with a taper through hole, and has an external diameter which is 1 to 2mm less than the internal diameter of the concave sheath. The three parts are used for the sealing connection of the cylinder head cover of the engine as a whole. The rubber layers are arranged between a fastening bolt and the cylinder head cover and between the concave sheath and a cylinder head respectively, so that relative vibration between the cylinder head cover and the cylinder head can be effectively damped, and the cylinder head cover and the cylinder head can be firmly connected and sealed. Compared with the conventional connection mode for the cylinder head cover and the cylinder head, the vibration damping type fastening component has two additional vibration damping layers. By the assembly of the fastening component, the conventional rubber gasket arranged between the cylinder head cover and the cylinder head can be prevented from being extruded and deformed, so that the service life of the rubber gasket of the cylinder head cover is prolonged, and remarkable vibration damping and denoising effects are achieved.
Description
Technical field
The utility model belongs to engine components, is specifically related to a kind of cylinder cover of engine fastener that has effect of vibration and noise reduction.
Background technique
Along with environmental protection standard and people improve constantly what automobile and motor travelling comfort required, the vibration and noise reducing problem of motor has become everybody perpetual object, and therefore how reducing the noise that motor produces because of vibration also is the important content of engine design.
The vibration of motor and noise produce between cylinder head cover and cylinder cap greatly.At present, be provided with rubber pad between cylinder head cover and the cylinder cap, adopt bolt directly to connect then, because be to be rigidly connected between cylinder head cover and the bolt, the vibration of cylinder head cover and noise are bigger.The utility model proposes a kind of fastener with obvious effect of vibration and noise reduction and is applied to cylinder head cover, guaranteeing can effectively to reduce vibration noise on the basis that is tightly connected between cylinder head cover and the cylinder cap, satisfies national legislation and user's requirement.
Summary of the invention
The purpose of the utility model provides a kind of cylinder cover of engine fastener with effect of vibration and noise reduction, can effectively reduce the vibration noise of cylinder head cover.
Describe below in conjunction with the know-why of accompanying drawing the utility model.
Shock reducing type cylinder cover of engine fastener comprises backplate, damping block and matrix sheath, and its structure is that metal casing and block rubber are made of one, and block rubber is embedded in the matrix sheath, and matrix sheath bottom lower end surface is provided with rubber layer.Block rubber is provided with conical through-hole, and the external diameter of block rubber is greater than matrix sheath internal diameter 1～2mm.
Such three parts are made the as a whole fastening piece that has vibration-damping function and are applied to being tightly connected of cylinder cover of engine.Clamping bolt penetrates backplate, vibration isolation rubber piece and spill sheath; Be equipped with rubber layer between clamping bolt and the cylinder head cover and between matrix sheath and the cylinder head; So can effectively alleviate the relative vibration between cylinder head cover and cylinder cap, also can make simultaneously to be connected between cylinder head cover and the cylinder cap and to seal more firm.
The characteristics and the beneficial effect of the utility model are: compare with the Placement of cylinder cap with cylinder head cover, increased by 2 vibration damping layers.Adopt the assembling of this fastener can guarantee that the sealing rubber pad that is provided with between present cylinder head cover and the cylinder cap is not extruded distortion, when prolonging cylinder head cover sealing rubber pad working life, have tangible effect of vibration and noise reduction.
Description of drawings
Shown in accompanying drawing be the utility model cross-section structure principle schematic.
Embodiment
Below through specific embodiment structural principle of the present invention is done further explanation.
As shown in the figure, shock reducing type cylinder cover of engine fastener is characterized in that metal casing 1 and block rubber 2 through being made of one, and block rubber is embedded in the matrix sheath 3, and matrix sheath bottom lower end surface is provided with rubber layer.Metal casing is provided with bolt hole; Block rubber is provided with conical through-hole; Matrix sheath lower end surface and rubber layer also are provided with bolt hole.The block rubber external diameter is greater than matrix sheath internal diameter 1mm.The matrix sheath is a metalwork, and the thickness of sheath lower end surface rubber layer also is 1mm.
Metal casing and block rubber and matrix sheath lower end surface rubber layer all are to be fixed as one through sulfuration process.Because the vibration isolation rubber piece has elasticity, require the damping block diameter greater than the sheath internal diameter, and the block rubber through hole have certain taper degree, these guarantee all that damping block has must decrement, closely is fixed in the sheath, better brings into play damping effect.Clamping bolt along one week of cylinder head cover is all taked this Connecting format, adopts this fastener back cylinder cover cover vibration obviously to reduce, and noise also is reduced.The utility model is extensive use on the CYQD Engine Series, and vibration noise is merely 93dB (A) through detecting than the original 1.1dB (A) of reduction, in the same industry level that is in a leading position.
Claims (3)
1. shock reducing type cylinder cover of engine fastener comprises backplate, damping block and matrix sheath, it is characterized in that metal casing (1) and block rubber (2) are made of one, and block rubber is embedded in the matrix sheath (3), and matrix sheath bottom lower end surface is provided with rubber layer.
2. according to the described shock reducing type cylinder cover of engine of claim 1 fastener, it is characterized in that said metal casing (1) is provided with bolt hole; Said block rubber (2) is provided with conical through-hole; Said matrix sheath (3) lower end surface and rubber layer also are provided with bolt hole.
3. according to claim 1 or 2 described shock reducing type cylinder cover of engine fasteners, it is characterized in that said block rubber (2) external diameter is greater than said matrix sheath (3) internal diameter 1～2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120458399XU CN202326904U (en) | 2011-11-17 | 2011-11-17 | Vibration damping type fastening component for cylinder head cover of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120458399XU CN202326904U (en) | 2011-11-17 | 2011-11-17 | Vibration damping type fastening component for cylinder head cover of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326904U true CN202326904U (en) | 2012-07-11 |
Family
ID=46438884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120458399XU Expired - Fee Related CN202326904U (en) | 2011-11-17 | 2011-11-17 | Vibration damping type fastening component for cylinder head cover of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326904U (en) |
-
2011
- 2011-11-17 CN CN201120458399XU patent/CN202326904U/en not_active Expired - Fee Related
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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: DONGFENG ZHAOYANG ZHAOCHAI POWER CO., LTD. Free format text: FORMER OWNER: DONGFENG ZHAOYANG DIESEL CO., LTD. Effective date: 20121205 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121205 Address after: 122000 the Yellow River Road, Liaoning, No. 3, No. 51, No. Patentee after: Dongfeng Chaoyang Chaochai Power Co., Ltd. Address before: 122000 the Yellow River Road, Liaoning, No. 3, No. 51, No. Patentee before: Dongfeng Chaoyang Diesel Engine Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20131117 |