CN207554192U - A kind of lockable engine crankshaft and cylinder body and its locking structure - Google Patents
A kind of lockable engine crankshaft and cylinder body and its locking structure Download PDFInfo
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- CN207554192U CN207554192U CN201721555341.0U CN201721555341U CN207554192U CN 207554192 U CN207554192 U CN 207554192U CN 201721555341 U CN201721555341 U CN 201721555341U CN 207554192 U CN207554192 U CN 207554192U
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- cylinder body
- engine
- crankshaft
- bent axle
- engine crankshaft
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Abstract
The utility model discloses a kind of lockable engine crankshafts and cylinder body and its locking structure, including the spaced multiple crankshaft counter balances of the axial direction along engine crankshaft and engine cylinder body, bent axle limiting seam allowance is provided on the crankshaft counter balance, cylinder body limit hole corresponding with bent axle limiting seam allowance is provided on the engine cylinder body, is connected between the bent axle limiting seam allowance and cylinder body limit hole by caging bolt.Bent axle is rotated to specific position, make the limiting seam allowance on crankshaft counter balance and the hole on cylinder body coaxial, it is positioned by fixing device, it can quick fixed crankshaft, simultaneously by docking supplementary structure, balancer shaft drive gear is further ensured in correct phase, effectively prevents the rotation of bent axle in balance shaft meshing gear assembling process.Fixing device is removed after the completion of balance shaft system assembling.The low assembly difficulty of balance shaft system, improves efficiency of assembling.
Description
Technical field
The utility model is related to Vehicle Engine Structure technical field, in particular to a kind of lockable engine crankshaft and
Cylinder body and its locking structure.
Background technology
With the raising to vehicle environmental protection and emission request, petrol engine develops to miniaturization, high power direction, three cylinders
Engine is a trend of current development of engine.The structure of three cylinder machines leads to rotatory inertia torque and reciprocal inertia force square not
Can complete equipilibrium, the NVH problems thus brought directly affect comfort and the service life of vehicle.Rotatory inertia torque can pass through
Setting crankshaft counterbalance counterweight is balanced, but when reciprocal inertia force square is larger, need to be balanced using balance shaft system.In view of
Three cylinder machines are compact-sized, arrangement space is limited, and uniaxiality balance device system is a kind of common effective solution, uniaxiality balance device
System is typically directly assemblied in cylinder body or oil sump, because uniaxiality balance device assembly has phase requirements to balance barycenter, in assembling
It must assure that the relative position of balance shaft and bent axle is fixed.Traditional positioning tool is complicated, real on three compact-sized cylinder machines
Apply that difficulty is big, efficiency of assembling is low.
Utility model content
The purpose of this utility model seeks to solve the deficiency of above-mentioned background technology, provides a kind of simple in structure, can guarantee
The lockable engine crankshaft and cylinder body and its locking structure of balance shaft and bent axle relative position.
In order to achieve this, lockable engine crankshaft and cylinder body designed by the utility model, including along engine
The spaced multiple crankshaft counter balances of axial direction and engine cylinder body of bent axle, it is characterised in that：The crankshaft counter balance
On be provided with bent axle limiting seam allowance, the cylinder body that can be connect by locking system and bent axle limiting seam allowance is provided on the engine cylinder body
Limit hole.
Specifically, the locking system is caging bolt.
Specifically, the bent axle limiting seam allowance is opened in the edge of any one crankshaft counter balance of engine crankshaft.
Preferably, the limit hole is threaded hole, and the threaded hole includes the guide cone for being opened in engine cylinder body surface
It hole section and is opened in engine cylinder body, the screw thread straight hole section coaxial with guide cone hole section.
Further, the balance shaft parallel with engine crankshaft is additionally provided in the engine cylinder body, the engine is bent
The front end of axis is connected with drive gear, and the balance shaft front end is connected with the driven gear engaged with drive gear, the driving
Gear and driven gear are equipped with the docking supplementary structure for corresponding, bent axle limiting seam allowance being assisted to be docked with cylinder body limit hole.
Further, the docking supplementary structure includes being opened in two first locating slots at drive gear edge and open
Set on driven gear edge, when bent axle limiting seam allowance is docked with cylinder body limit hole, the among two the first locating slots
Two locating slots.
The locking structure of engine crankshaft and cylinder body：Bent axle limiting seam allowance and the engine cylinder of the crankshaft counter balance
Caging bolt is connected between the cylinder body limit hole of body.
The beneficial effects of the utility model are：Bent axle is rotated to specific position, makes the limiting seam allowance on crankshaft counter balance
It is coaxial with the hole on cylinder body, positioned by fixing device, can quick fixed crankshaft, while by docking supplementary structure, further
It ensure that balancer shaft drive gear in correct phase, effectively prevents the rotation of bent axle in balance shaft meshing gear assembling process
Turn.Fixing device is removed after the completion of balance shaft system assembling.The low assembly difficulty of balance shaft system, improves efficiency of assembling.
Description of the drawings
Fig. 1 is the vertical view of locking structure in the utility model；
Fig. 2 is engine crankshaft and the arrangement schematic diagram of balance shaft in the utility model；
Fig. 3 is the view in transverse section of bolt limit part in Fig. 1；
Wherein, 1-engine crankshaft, 2-crankshaft counter balance, 3-engine cylinder body, 4-bent axle limiting seam allowance, 5-cylinder
Body limit hole (5.1-guide cone hole section, 5.2-screw thread straight hole section), 6-caging bolt, 7-balance shaft, 8-drive gear,
9-driven gear, the 10-the first locating slot, the 11-the second locating slot.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
Lockable engine crankshaft and cylinder body as shown in Fig. 1-3, including between the axial direction along engine crankshaft 1
Seam allowance 4, engine cylinder are limited every being provided with bent axle on multiple crankshaft counter balances 2 of setting and engine cylinder body 3, crankshaft counter balance 2
It is provided on body 3 and limits 4 corresponding cylinder body limit hole 5 of seam allowance with bent axle, passed through between bent axle limiting seam allowance 4 and cylinder body limit hole 5
Caging bolt 6 connects.Bent axle limiting seam allowance 4 is opened in the edge of a crankshaft counter balance 2 of engine crankshaft 1.Limit hole 5 is
Threaded hole, threaded hole include being opened in the guide cone hole section 5.1 on 3 surface of engine cylinder body and be opened in engine cylinder body 3 and
The coaxial screw thread straight hole section 5.2 of guide cone hole section 5.1.The balance shaft parallel with engine crankshaft 1 is additionally provided in engine cylinder body 3
7, the front end of engine crankshaft 1 is connected with drive gear 8, and 7 front end of balance shaft is connected with the driven gear engaged with drive gear 8
9, drive gear 8 and driven gear 9 are equipped with the docking for corresponding, bent axle limiting seam allowance 4 being assisted to be docked with cylinder body limit hole 5
Supplementary structure.Docking supplementary structure includes two the first locating slots 10 for being opened in 8 edge of drive gear and is opened in driven tooth
Take turns 9 edges, when bent axle limiting seam allowance 4 is docked with cylinder body limit hole 5, the second positioning among two the first locating slots 10
Slot 11.
In the utility model, engine crankshaft 1 is rotated into specific position, the bent axle on crankshaft counter balance 2 is limited and stops
Mouth 4 is coaxial with the cylinder body limit hole 5 on engine cylinder body 3, is positioned using caging bolt 6, quickly fixed to engine crankshaft 1,
By the driven gear 9 of the position of the first locating slot 10 of observation and the second locating slot 11 guarantee balance shaft 7 in correct phase,
The engine crankshaft 1 in meshing gear assembling process is effectively prevented to rotate.Limiting spiral shell is removed after the completion of balance shaft system assembling
Bolt 6.The assembly difficulty of balance shaft system is reduced, improves efficiency of assembling.
The above descriptions are merely preferred embodiments of the present invention, not the structure of the utility model is done any
Formal limitation.Every any simple modification made according to the technical essence of the utility model to above example is equal
Variation and modification, in the range of still falling within the technical solution of the utility model.
Claims (7)
1. a kind of lockable engine crankshaft and cylinder body, spaced more including the axial direction along engine crankshaft (1)
A crankshaft counter balance (2) and engine cylinder body (3), it is characterised in that：Bent axle limiting seam allowance is provided on the crankshaft counter balance (2)
(4), the cylinder body limit hole that can be connect by locking system with bent axle limiting seam allowance (4) is provided on the engine cylinder body (3)
(5)。
2. a kind of lockable engine crankshaft as described in claim 1 and cylinder body, it is characterised in that：The locking system is
Caging bolt (6).
3. a kind of lockable engine crankshaft as described in claim 1 and cylinder body, it is characterised in that：The bent axle limiting stops
Mouth (4) is opened in the edge of any one crankshaft counter balance (2) of engine crankshaft (1).
4. a kind of lockable engine crankshaft as described in claim 1 and cylinder body, it is characterised in that：The limit hole (5)
For threaded hole, the threaded hole includes being opened in the guide cone hole section (5.1) on engine cylinder body (3) surface and is opened in engine
Cylinder body (3) is interior, the screw thread straight hole section (5.2) coaxial with guide cone hole section (5.1).
5. a kind of lockable engine crankshaft as described in claim 1 and cylinder body, it is characterised in that：The engine cylinder body
(3) balance shaft (7) parallel with engine crankshaft (1) is additionally provided in, the front end of the engine crankshaft (1) is connected with sliding tooth
Take turns (8), balance shaft (7) front end is connected with the driven gear (9) engaged with drive gear (8), the drive gear (8) and
Driven gear (9), which is equipped with, to be corresponded, bent axle is assisted to limit the docking auxiliary knot that seam allowance (4) is docked with cylinder body limit hole (5)
Structure.
6. a kind of lockable engine crankshaft as claimed in claim 5 and cylinder body, it is characterised in that：The docking auxiliary knot
Structure includes being opened in two first locating slots (10) at drive gear (8) edge and is opened in driven gear (9) edge, works as bent axle
When limiting seam allowance (4) is docked with cylinder body limit hole (5), second locating slot (11) intermediate positioned at two the first locating slots (10).
7. a kind of locking structure of lockable engine crankshaft and cylinder body, it is characterised in that：Including that can be locked described in claim 1
Engine crankshaft (1) and engine cylinder body (3) only, the bent axle limiting seam allowance (4) of the crankshaft counter balance (2) start with described
Caging bolt (6) is connected between the cylinder body limit hole (5) of machine cylinder body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721555341.0U CN207554192U (en) | 2017-11-20 | 2017-11-20 | A kind of lockable engine crankshaft and cylinder body and its locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721555341.0U CN207554192U (en) | 2017-11-20 | 2017-11-20 | A kind of lockable engine crankshaft and cylinder body and its locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554192U true CN207554192U (en) | 2018-06-29 |
Family
ID=62679329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721555341.0U Active CN207554192U (en) | 2017-11-20 | 2017-11-20 | A kind of lockable engine crankshaft and cylinder body and its locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207554192U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139797A (en) * | 2018-09-29 | 2019-01-04 | 东风汽车集团有限公司 | A kind of three cylinder gasoline engine balance shaft mechanisms |
| CN109340306A (en) * | 2018-09-29 | 2019-02-15 | 东风汽车集团有限公司 | A kind of uniaxiality balance axle system of variable compression ratio engine |
-
2017
- 2017-11-20 CN CN201721555341.0U patent/CN207554192U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139797A (en) * | 2018-09-29 | 2019-01-04 | 东风汽车集团有限公司 | A kind of three cylinder gasoline engine balance shaft mechanisms |
| CN109340306A (en) * | 2018-09-29 | 2019-02-15 | 东风汽车集团有限公司 | A kind of uniaxiality balance axle system of variable compression ratio engine |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430056 No. 1 Dongfeng Avenue, Wuhan economic and Technological Development Zone, Hubei, Wuhan Patentee after: dFac Address before: 430056 No. 1 Dongfeng Avenue, Wuhan economic and Technological Development Zone, Hubei, Wuhan Patentee before: Dongfeng Car Co. |
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| CP01 | Change in the name or title of a patent holder |