CN210218390U - Novel diesel engine crankshaft - Google Patents
Novel diesel engine crankshaft Download PDFInfo
- Publication number
- CN210218390U CN210218390U CN201920686335.1U CN201920686335U CN210218390U CN 210218390 U CN210218390 U CN 210218390U CN 201920686335 U CN201920686335 U CN 201920686335U CN 210218390 U CN210218390 U CN 210218390U
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- CN
- China
- Prior art keywords
- crankshaft
- connecting rod
- balancing piece
- diesel engine
- novel diesel
- 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.)
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- 238000005096 rolling process Methods 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 6
- 238000007493 shaping process Methods 0.000 abstract description 4
- 230000010354 integration Effects 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 230000008719 thickening Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model provides a novel diesel engine crankshaft, includes the balancing piece that sets up on crankshaft body and the crankshaft body, crankshaft body and balancing piece integrated into one piece, and the inboard of the balancing piece of two symmetries all is equipped with the uninstallation groove, and the junction of two balancing pieces is equipped with the connecting rod shelves, and the connecting rod shelves passes through the roll extrusion with the balancing piece and forms the enhancement and be connected the arc. The utility model discloses in adopt the roll extrusion reinforcement to form the enhancement connection arc through connecting rod shelves and the balancing piece junction after the shaping, eliminate the stress of connecting rod shelves and balancing piece junction through the enhancement connection arc to prevent that connecting rod shelves and balancing piece junction stress concentration district from appearing the crack, and through the design of integration bent axle, the bent axle part assembly of being convenient for is with fixed, has improved the moving reliability of bent axle part.
Description
Technical Field
The utility model belongs to the technical field of the engine accessories is relevant, especially, relate to a novel diesel engine bent axle.
Background
The rotating speed of the engine is greatly improved along with the continuous strengthening of the power of the high-power diesel engine. Higher requirements are placed on the structural reliability and compactness of moving parts of the engine. If the design of the integrated crankshaft is adopted, the structure and the connection mode of the moving part of the diesel engine are simplified, and the reliable and efficient operation under the working conditions of high speed and large load is facilitated. Meanwhile, the size of the crankshaft can be reduced due to the design of the integrated crankshaft, and the compact and light design of the engine is facilitated.
The crank pin is vertically and fixedly connected between the two parallel crank arms, so that the internal stress at the joint is concentrated, the part bears larger external force in the working process of the diesel engine, cracks often appear at the joint and even can break, and a method of thickening the crank arm or thickening the shaft diameter of the crank is generally adopted when the problem of crankshaft breakage is solved, the structure consumes more material during production, so that the crank is heavier, the flexibility of the crank is reduced, and the fillet stress of the crank pin is further increased; making balancing and spatial arrangement of the crankshaft more difficult.
Meanwhile, because the connecting rod gear and the balance block in the crankshaft are integrally formed during connecting and casting, when the crankshaft works, stress concentration easily occurs at the connecting part of the connecting rod gear and the balance block, so that cracks easily occur at the connecting part of the connecting rod gear and the balance block, and the normal work of the crankshaft is influenced.
Disclosure of Invention
In view of this, the invention aims to provide a crankshaft of a diesel engine, which simplifies the crankshaft and a crankshaft balance system, realizes the integrated design of the crankshaft, simplifies the assembly of crankshaft components, and improves the structural reliability of the crankshaft components.
In order to achieve the purpose, the technical scheme of the invention is realized as follows: the utility model provides a novel diesel engine crankshaft, includes the balancing piece that sets up on crankshaft body and the crankshaft body, crankshaft body and balancing piece integrated into one piece, and the inboard of the balancing piece of two symmetries all is equipped with the uninstallation groove, and the junction of two balancing pieces is equipped with the connecting rod shelves, and the connecting rod shelves passes through the roll extrusion with the balancing piece and forms the enhancement and be connected the arc.
The connecting rod shelves and the balancing piece are generally through the arc connection of processing into through the lathe behind the casting integration shaping, the utility model discloses in adopt the roll extrusion reinforcement to form the enhancement connection arc through connecting rod shelves and the balancing piece junction after the shaping, eliminate the stress of connecting rod shelves and balancing piece junction through strengthening the connection arc to prevent that the crack from appearing in connecting rod shelves and balancing piece junction stress concentration district.
Furthermore, the two balance blocks are positioned on the same side of the crankshaft body, so that the crankshaft has good balance, space is saved, and the crankshaft structure is more compact.
Furthermore, the two balance blocks are arranged in parallel, and the balance blocks can be designed into two blocks which are arranged at intervals, so that better balance performance is ensured when the crankshaft operates.
Further, the unloading groove is arc-shaped.
Further, the connecting rod baffle is of an embedded type.
Furthermore, each edge of the balance weight is a rounded corner.
The mode of bolt pressing and locking of the crankshaft part is changed into integral design, the crankshaft and the balance block are taken as an integral design to replace the balance block of the crankshaft in the prior art to adopt the mode of bolt pressing, the novel integrated crankshaft does not have the redundant parts and structures, the centrifugal inertia force of the crankshaft is self-balanced in the operation process, the integral rigidity of the crankshaft is increased, the reliability of the crankshaft in the operation process is improved, and the probability of engine operation failure caused by the looseness and the falling of the traditional crankshaft part is reduced. The overall reliability of the engine is effectively improved.
By thickening the thickness of the integrated crankshaft crank, the rotating radius of the crankshaft is effectively reduced, and the possibility is provided for the lightweight design of an engine and the compact design of a crankcase.
Has the advantages that: (1) the utility model discloses in adopt the roll extrusion reinforcement to form the enhancement connection arc through connecting rod shelves and the balancing piece junction after the shaping, eliminate the stress of connecting rod shelves and balancing piece junction through the enhancement connection arc to prevent that connecting rod shelves and balancing piece junction stress concentration district from appearing the crack.
(2) Through the design of integration bent axle, retrencied the part number of bent axle part, become the bent axle balancing piece and be bent axle bolt-up connection for bent axle and balancing piece structure as an organic whole, the bent axle part assembly and fixed of being convenient for need not lock the dead to compressing tightly the balancing piece bolt again simultaneously, have improved the reliability of the operation of bent axle part.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described with reference to the accompanying drawings.
The utility model provides a novel diesel engine crankshaft, includes the balancing piece 2 that sets up on crankshaft body 1 and the crankshaft body 1, crankshaft body 1 and 2 integrated into one piece of balancing piece, and the inboard of the balancing piece 2 of two symmetries all is equipped with uninstallation groove 3, and the junction of two balancing pieces 2 is equipped with connecting rod shelves 4, and connecting rod shelves 4 and balancing piece 2 form through the roll extrusion and strengthen connecting arc 5.
The two balance weights 2 are positioned on the same side of the crankshaft body 1, so that the crankshaft has good balance, space is saved, and the crankshaft structure is more compact.
The two balance blocks 2 are arranged in parallel, and the balance blocks 2 can be designed into two blocks which are arranged at intervals, so that better balance performance is ensured when the crankshaft operates.
The unloading chute 3 is in the shape of an elliptical arc.
The connecting rod gear 4 is of an embedded type.
And each edge of the balance weight 2 is a rounded corner.
Claims (6)
1. A novel diesel engine crankshaft which is characterized in that: the balance block comprises a crankshaft body and balance blocks arranged on the crankshaft body, wherein the crankshaft body and the balance blocks are integrally formed, unloading grooves are formed in the inner sides of the two symmetrical balance blocks, a connecting rod gear is arranged at the joint of the two balance blocks, and the connecting rod gear and the balance blocks form a reinforced connecting arc through rolling.
2. The novel diesel engine crankshaft of claim 1, wherein said counterweights are located on the same side of said crankshaft body.
3. The novel diesel crankshaft of claim 1 wherein said counterweights are arranged in parallel.
4. The novel diesel engine crankshaft of claim 1, wherein said relief grooves are circular arc shaped.
5. The novel diesel engine crankshaft of claim 1, wherein said connecting rod rail is of an inlaid type.
6. The novel diesel engine crankshaft as set forth in claim 1, wherein each corner of said balance weight is rounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920686335.1U CN210218390U (en) | 2019-05-15 | 2019-05-15 | Novel diesel engine crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920686335.1U CN210218390U (en) | 2019-05-15 | 2019-05-15 | Novel diesel engine crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210218390U true CN210218390U (en) | 2020-03-31 |
Family
ID=69925920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920686335.1U Active CN210218390U (en) | 2019-05-15 | 2019-05-15 | Novel diesel engine crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210218390U (en) |
-
2019
- 2019-05-15 CN CN201920686335.1U patent/CN210218390U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240606 Address after: No. 19 Huaxi Road, Huankeyuan, Yixing, Wuxi City, Jiangsu Province, 214200 Patentee after: Yixing Huafei Power Technology Co.,Ltd. Country or region after: China Address before: No. 400 Yibei Road, Yixing Street, Yixing City, Wuxi City, Jiangsu Province, 214207 Patentee before: JIANGSU CHANGGONG POWER MACHINERY Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |