CN202392028U - Diesel engine crankshaft shock absorber - Google Patents
Diesel engine crankshaft shock absorber Download PDFInfo
- Publication number
- CN202392028U CN202392028U CN2011205209424U CN201120520942U CN202392028U CN 202392028 U CN202392028 U CN 202392028U CN 2011205209424 U CN2011205209424 U CN 2011205209424U CN 201120520942 U CN201120520942 U CN 201120520942U CN 202392028 U CN202392028 U CN 202392028U
- Authority
- CN
- China
- Prior art keywords
- diesel engine
- inertial mass
- crankshaft
- housing
- shock absorber
- 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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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model belongs to the field of diesel engines, and particularly relates to a diesel engine crankshaft shock absorber for shock absorption of a crankshaft of a diesel engine. The diesel engine crankshaft shock absorber comprises a ground tray and a shell which are integrally molded through compression casting, wherein the shell is provided with a ring-shaped groove; the cross section of the ring-shaped groove is rhombic; a rhombic inertia block is arranged in the ring-shaped groove, and is elastic; an opening of the ring-shaped groove is sealed by a sealing cover; the upper end face and the lower end face of the inertia block are connected with the shell through cushion blocks; and tapered buffering grains pointing downwards are arranged on the upper half part of the inertia block, and tapered buffering grains pointing upwards are arranged on the lower half part of the inertia block. The diesel engine crankshaft shock absorber has the advantages that the shock absorbing function is enhanced in a limited shell space, the crankshaft shock absorption effect of the diesel engine is enhanced, and the service life of the diesel engine is prolonged.
Description
Technical field
The invention belongs to the diesel engine field, specifically is a kind of crankshaft of diesel engine damping device that is used for the crankshaft of diesel engine damping.
Background technique
In diesel engine when work, is because the rotation of bent axle is vibrated engine producing.For reducing crankshaft torsional vibrations, generally need to install the vibration damper that has silicone oil.The gentle year bracing ring of inertial mass is installed in the housing of traditional silicon oil snubber, and between housing and inertial mass, is full of silicone oil, reach the purpose of attenuating crankshaft torsional vibrations through the frictional damping absorbed oscillation energy of coasting body and silicone oil.But the defective of this kind vibration damper is, housing is made up of two-layer, and the chassis of big housing and small shell welds together with one heart, and the weld seam sealing effect at two housings junction plane place is poor, and intensity is also poor.Silicone oil takes place and leaks through after working for a long time in vibration damper easily, small shell may take place when serious break away from reduction of service life, and the damping effect forfeiture causes major accident.Because conventional inertia body and silicone oil area of contact are less, reach good effectiveness in vibration suppression in addition, need the oversized with coasting body, will cause the whole vibration damper size to increase like this, this is concerning the motor that has, and its assembly space is unallowable.So having occurred a kind of afterwards is the utility model patent of CN202001549U like the disclosed notification number of Patent Office of the People's Republic of China; This patent has been described the diesel engine vibration damper that a kind of housing is an integral type; The shortcoming that it exists is that it is poor in coasting body and silicone oil damping by friction process, to make coasting body and housing collide the damping effect that causes all the time up and down owing to the space is narrow and small.
Summary of the invention
The problem that the utility model will solve is that diesel engine vibration damper inner housing space is little and cause bent axle to turn round the problem of shake damping effect difference, the utility model a kind of crankshaft of diesel engine damping device is provided.
The utility model provides following technological scheme:
The crankshaft of diesel engine damping device, it comprises the domain and the housing of one die cast, housing is the housing with an annular groove; The cross section of annular groove is a rhombus, is provided with the inertial mass of rhombus in this annular groove, and this inertial mass is flexible; The opening of annular groove seals through capping; The upper-end surface of inertial mass is connected with housing through cushion block with the lower end surface, and upper half part of inertial mass is provided with sensing towards inferior pyramidal buffering grain, and lower half portion of inertial mass is provided with sensing taper buffering grain up.
Adopt this technological scheme; Annular groove through rhombus with the cooperating of inertial mass of rhombus can better carry out damping; Through the buffering grain of two-part directed in opposite on the inertial mass, respectively silicone oil is produced buoyancy and resistance in the opposite direction and carry out damping, further improve damping effect.
Be provided with a cavity in the described inertial mass, be provided with inertia ball in this cavity.
The inertia that strengthens inertial mass that is provided with through inertia ball carries out damping shock absorption.
Be provided with two inertia balls in the described cavity.
The utility model has the advantages that in limited shell space to have strengthened cushioning effect, strengthened the effect of crankshaft of diesel engine damping, prolonged the working life of diesel engine.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
As shown in Figure 1, the crankshaft of diesel engine damping device, it comprises the domain 1 and housing 2 of one die cast; Housing 2 is for having the housing of an annular groove 3; The cross section of annular groove 3 is a rhombus, is provided with the inertial mass 4 of rhombus in this annular groove 3, and this inertial mass 4 is flexible; The opening of annular groove 3 is through capping sealing 5; The upper-end surface of inertial mass 4 is connected with housing 2 through cushion block 6 with the lower end surface, and upper half part of inertial mass 4 is provided with sensing towards inferior pyramidal buffering grain 4a, and lower half portion of inertial mass 4 is provided with sensing taper buffering grain 4b up.
Adopt this technological scheme; Annular groove through rhombus with the cooperating of inertial mass of rhombus can better carry out damping; Through the buffering grain of two-part directed in opposite on the inertial mass, respectively silicone oil is produced buoyancy and resistance in the opposite direction and carry out damping, further improve damping effect.
Be provided with a cavity in the described inertial mass 4, be provided with inertia ball 7 in this cavity.
The inertia that strengthens inertial mass that is provided with through inertia ball carries out damping shock absorption.
Generally be provided with two inertia balls 7 in the described cavity.
Claims (3)
1. crankshaft of diesel engine damping device, it comprises the domain and the housing of one die cast, housing is the housing with an annular groove; The cross section of annular groove is a rhombus, is provided with the inertial mass of rhombus in this annular groove, and this inertial mass is flexible; The opening of annular groove seals through capping; The upper-end surface of inertial mass is connected with housing through cushion block with the lower end surface, and upper half part of inertial mass is provided with sensing towards inferior pyramidal buffering grain, and lower half portion of inertial mass is provided with sensing taper buffering grain up.
2. crankshaft of diesel engine damping device according to claim 1 is characterized in that: be provided with a cavity in the described inertial mass, be provided with inertia ball in this cavity.
3. crankshaft of diesel engine damping device according to claim 2 is characterized in that: be provided with two inertia balls in the described cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205209424U CN202392028U (en) | 2011-12-10 | 2011-12-10 | Diesel engine crankshaft shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205209424U CN202392028U (en) | 2011-12-10 | 2011-12-10 | Diesel engine crankshaft shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202392028U true CN202392028U (en) | 2012-08-22 |
Family
ID=46666956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205209424U Expired - Fee Related CN202392028U (en) | 2011-12-10 | 2011-12-10 | Diesel engine crankshaft shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202392028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494072A (en) * | 2011-12-10 | 2012-06-13 | 常州常瑞天力动力机械有限公司 | Diesel engine crankshaft damping device |
-
2011
- 2011-12-10 CN CN2011205209424U patent/CN202392028U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494072A (en) * | 2011-12-10 | 2012-06-13 | 常州常瑞天力动力机械有限公司 | Diesel engine crankshaft damping device |
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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: 20120822 Termination date: 20121210 |