CN109026976A - Crankshaft front end gear power export structure and its installation method - Google Patents
Crankshaft front end gear power export structure and its installation method Download PDFInfo
- Publication number
- CN109026976A CN109026976A CN201811173888.3A CN201811173888A CN109026976A CN 109026976 A CN109026976 A CN 109026976A CN 201811173888 A CN201811173888 A CN 201811173888A CN 109026976 A CN109026976 A CN 109026976A
- Authority
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- China
- Prior art keywords
- groove
- gear
- horizontal surface
- crankshaft
- flat horizontal
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
- F16C3/08—Crankshafts made in one piece
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Gear Transmission (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a kind of crankshaft front end gear power export structure and its installation method, crankshaft front end gear power export structure includes: crankshaft, wherein is provided with flat axis on the connected shaft part of crankshaft front end crankshaft microcephaly；The upper and lower sides of flat axis are respectively arranged with the first flat horizontal surface and the second flat horizontal surface, and the first flat horizontal surface and the second flat horizontal surface are parallel to each other, and the first flat horizontal surface and the second flat horizontal surface are symmetrical along the trunnion center line of crankshaft；And gear, wherein gear center hole is provided on gear；One of groove is machined on one of end face of gear, two sides of groove are groove first side and groove second side respectively；When gear to be assembled on crankshaft, the groove of the end face of gear and the flat shaft assignment of crankshaft front end are assembled, and the first flat horizontal surface and the second flat horizontal surface of crankshaft are aligned with the groove first side of gear and groove second side respectively.Crankshaft front end gear power export structure of the invention significantly improves the transmission capacity of crankshaft front end gear.
Description
Technical field
The present invention relates to engine design fields, especially with regard to a kind of crankshaft front end gear power export structure
And its installation method.
Background technique
Crankshaft is one of most important part in engine, it bears the power from connecting rod, and is transformed into torque
It is exported by crankshaft, and other attachmentes on engine is driven to work.Wherein, crankshaft drives other attachment such as injection pumps, gazogene
Whens structure, hydraulic pump etc., need to transmit output power from crankshaft front end by gear.
Traditional crankshaft front end gear power export structure is: between crankshaft front end microcephaly and gear using pin, key or
The methods of interference press fitting connection, however traditional crankshaft front end gear power export structure has the disadvantage that: 1, using pin, key connected
When connecing, the intensity of crankshaft microcephaly and gear is reduced, transmission capacity is small, poor reliability；2, when using interference pressing method, anti-impact
It is poor to hit load-bearing capacity, the failures such as skidding, transfer are easy to appear between gear and crankshaft microcephaly, there are security risks.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of crankshaft front end gear power export structures, before capable of significantly improving crankshaft
The transmission capacity of end tooth wheel.
Another object of the present invention is to provide a kind of installation methods of crankshaft front end gear power export structure.
To achieve the above object, the present invention provides a kind of crankshaft front end gear power export structures, comprising: crankshaft,
In, flat axis is provided on the connected shaft part of crankshaft front end crankshaft microcephaly；And wherein, the upper and lower sides of flat axis are respectively arranged with first
Flat horizontal surface and the second flat horizontal surface, the first flat horizontal surface and the second flat horizontal surface are parallel to each other, and the first flat horizontal surface and the second flat horizontal surface
It is symmetrical along the trunnion center line of crankshaft；And gear, wherein gear center hole is provided on gear；And wherein, gear
One of end face on be machined with one of groove, the section of groove be it is rectangular, two sides of groove are groove first respectively
Side and groove second side；And wherein, when gear to be assembled on crankshaft, the groove and crankshaft front end of the end face of gear
Flat shaft assignment assembly, the first flat horizontal surface and the second flat horizontal surface of crankshaft respectively with the groove first side of gear and groove second
Side alignment.
In a preferred embodiment, the axial width dimension between the first flat horizontal surface and the second flat horizontal surface be 1mm~
6mm。
In a preferred embodiment, groove is completely through gear.
In a preferred embodiment, groove first side and groove second side are parallel to each other, and groove first
The axisymmetrical of side and groove second side along gear center hole, the length of the depth dimensions of groove axis more flat than crankshaft front end
Small 0~3mm.
In a preferred embodiment, assembly building is provided between the two sides of groove and two flat horizontal surfaces of flat axis
Gap, the size of fit-up gap are 0~0.5mm；It is also equipped with fit-up gap between the end face of gear and the flat horizontal surface end face of flat axis,
Fit-up gap is 0~3mm.
The present invention also provides a kind of installation methods of crankshaft front end gear power export structure, include the following steps:
Flat axis is opened up on the connected shaft part of crankshaft front end crankshaft microcephaly；Wherein, the upper and lower sides of flat axis be respectively arranged with the first flat horizontal surface and
Second flat horizontal surface, the first flat horizontal surface and the second flat horizontal surface are parallel to each other, and the first flat horizontal surface and the second flat horizontal surface are along crankshaft
Trunnion center line it is symmetrical；Gear center hole is set on gear；One of groove is processed on one of end face of gear,
The section of groove be it is rectangular, two sides of groove are groove first side and groove second side respectively；And gear is filled
It is fitted on crankshaft, wherein the flat shaft assignment of the groove of the end face of gear and crankshaft front end assembles, the first flat horizontal surface of crankshaft and the
Two flat horizontal surfaces are aligned with the groove first side of gear and groove second side respectively.
In a preferred embodiment, the axial width dimension between the first flat horizontal surface and the second flat horizontal surface be 1mm~
6mm。
In a preferred embodiment, groove is completely through gear.
In a preferred embodiment, groove first side and groove second side are parallel to each other, and groove first
The axisymmetrical of side and groove second side along gear center hole, the length of the depth dimensions of groove axis more flat than crankshaft front end
Small 0~3mm.
In a preferred embodiment, assembly building is provided between the two sides of groove and two flat horizontal surfaces of flat axis
Gap, the size of fit-up gap are 0~0.5mm；It is also equipped with fit-up gap between the end face of gear and the flat horizontal surface end face of flat axis,
Fit-up gap is 0~3mm.
Compared with prior art, crankshaft front end gear power export structure of the invention and its installation method have following excellent
Point: 1, the transmission capacity of crankshaft front end gear can be significantly increased；2, it can be well adapted for high load capacity impact operating condition, it is thorough
Bottom has prevented crankshaft front end gear slipping, transfer failure；3, crankshaft front end gear power export structure of the invention, design are closed
Reason, good reliability have highly application value.
Detailed description of the invention
Fig. 1 is the main view of crankshaft front end structure according to an embodiment of the present invention.
Fig. 2 is the left view of crankshaft front end structure according to an embodiment of the present invention.
Fig. 3 is the axonometric drawing of crankshaft front end structure according to an embodiment of the present invention.
Fig. 4 is the main view of gear according to an embodiment of the present invention.
Fig. 5 is the right view of gear according to an embodiment of the present invention.
Fig. 6 is the axonometric drawing of gear according to an embodiment of the present invention.
Fig. 7 is the installation diagram of crankshaft front end gear power export structure according to an embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in figs. 1-7, crankshaft front end gear power export structure includes: crankshaft 1, wherein 1 front end crankshaft microcephaly of crankshaft
Flat axis 12 is provided on 11 connected shaft part；And wherein, the upper and lower sides of flat axis 12 are respectively arranged with the first flat horizontal surface 13 and
Two flat horizontal surfaces 14, the first flat horizontal surface 13 and the second flat horizontal surface 14 are parallel to each other, and the first flat horizontal surface 13 and the second flat horizontal surface 14
It is symmetrical along the trunnion center line of crankshaft 1；And gear 2, wherein gear center hole 21 is provided on gear 2；And its
In, one of groove 22 is machined on one of end face of gear 2, the section of groove 22 is rectangular, two sides of groove 22
It is groove first side 23 and groove second side 24 respectively；And wherein, when gear 2 to be assembled on crankshaft 1, gear 2
End face groove 22 and crankshaft front end flat shaft assignment assemble, the first flat horizontal surface 13 of crankshaft 1 and the second flat horizontal surface 14 difference
It is aligned with the groove first side 23 of gear 2 and groove second side 24.
In a preferred embodiment, the axial width dimension between the first flat horizontal surface and the second flat horizontal surface be 1mm~
6mm。
In a preferred embodiment, groove is completely through gear.
In a preferred embodiment, groove first side and groove second side are parallel to each other, and groove first
The axisymmetrical of side and groove second side along gear center hole, the length of the depth dimensions of groove axis more flat than crankshaft front end
Small 0~3mm.
In a preferred embodiment, assembly building is provided between the two sides of groove and two flat horizontal surfaces of flat axis
Gap, the size of fit-up gap are 0~0.5mm；It is also equipped with fit-up gap between the end face of gear and the flat horizontal surface end face of flat axis,
Fit-up gap is 0~3mm.
The present invention also provides a kind of installation methods of crankshaft front end gear power export structure, include the following steps:
Flat axis is opened up on the connected shaft part of crankshaft front end crankshaft microcephaly；Wherein, the upper and lower sides of flat axis be respectively arranged with the first flat horizontal surface and
Second flat horizontal surface, the first flat horizontal surface and the second flat horizontal surface are parallel to each other, and the first flat horizontal surface and the second flat horizontal surface are along crankshaft
Trunnion center line it is symmetrical；Gear center hole is set on gear；One of groove is processed on one of end face of gear,
The section of groove be it is rectangular, two sides of groove are groove first side and groove second side respectively；And gear is filled
It is fitted on crankshaft, wherein the flat shaft assignment of the groove of the end face of gear and crankshaft front end assembles, the first flat horizontal surface of crankshaft and the
Two flat horizontal surfaces are aligned with the groove first side of gear and groove second side respectively.
In a preferred embodiment, the axial width dimension between the first flat horizontal surface and the second flat horizontal surface be 1mm~
6mm。
In a preferred embodiment, groove is completely through gear.
In a preferred embodiment, groove first side and groove second side are parallel to each other, and groove first
The axisymmetrical of side and groove second side along gear center hole, the length of the depth dimensions of groove axis more flat than crankshaft front end
Small 0~3mm.
In a preferred embodiment, assembly building is provided between the two sides of groove and two flat horizontal surfaces of flat axis
Gap, the size of fit-up gap are 0~0.5mm；It is also equipped with fit-up gap between the end face of gear and the flat horizontal surface end face of flat axis,
Fit-up gap is 0~3mm.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (10)
1. a kind of crankshaft front end gear power export structure, which is characterized in that the crankshaft front end gear power export structure packet
It includes:
Crankshaft, wherein be provided with flat axis on the connected shaft part of the crankshaft front end crankshaft microcephaly；And wherein, the flat axis
Upper and lower sides are respectively arranged with the first flat horizontal surface and the second flat horizontal surface, and first flat horizontal surface and second flat horizontal surface are mutually equal
Row, and first flat horizontal surface and second flat horizontal surface are symmetrical along the trunnion center line of crankshaft；And
Gear, wherein be provided with gear center hole on the gear；And wherein, add on one of end face of the gear
Work has one of groove, the section of the groove be it is rectangular, two sides of the groove are groove first side and groove respectively
Second side；And wherein, when the gear to be assembled on the crankshaft, the groove of the end face of the gear and the song
The flat shaft assignment of axis front end assembles, the first flat horizontal surface and the second flat horizontal surface of the crankshaft respectively with the groove first of the gear
Side and the alignment of groove second side.
2. crankshaft front end gear power export structure as described in claim 1, which is characterized in that first flat horizontal surface and institute
Stating the axial width dimension between the second flat horizontal surface is 1mm~6mm.
3. crankshaft front end gear power export structure as claimed in claim 2, which is characterized in that the groove is completely through institute
State gear.
4. crankshaft front end gear power export structure as claimed in claim 3, which is characterized in that the groove first side and
The groove second side is parallel to each other, and the groove first side and the groove second side are along in the gear
The axisymmetrical in heart hole, the small 0~3mm of length of the depth dimensions of groove axis more flat than the crankshaft front end.
5. crankshaft front end gear power export structure as claimed in claim 4, which is characterized in that the two sides of the groove with
Fit-up gap is provided between two flat horizontal surfaces of the flat axis, the size of the fit-up gap is 0~0.5mm；The gear
End face and flat axis flat horizontal surface end face between be also equipped with fit-up gap, the fit-up gap is 0~3mm.
6. a kind of installation method of crankshaft front end gear power export structure, which is characterized in that the crankshaft front end gear power
The installation method of export structure includes the following steps:
Flat axis is opened up on the connected shaft part of crankshaft front end crankshaft microcephaly；
Wherein, the upper and lower sides of the flat axis are respectively arranged with the first flat horizontal surface and the second flat horizontal surface, first flat horizontal surface and institute
State that the second flat horizontal surface is parallel to each other, and first flat horizontal surface and second flat horizontal surface are along the trunnion center line of crankshaft
Symmetrically；
Gear center hole is set on gear；
Process one of groove on one of end face of the gear, the section of the groove be it is rectangular, the two of the groove
A side is groove first side and groove second side respectively；And
The gear is assembled on the crankshaft, wherein the flat axis of the groove of the end face of the gear and the crankshaft front end
Centered assembling, the first flat horizontal surface and the second flat horizontal surface of the crankshaft respectively with the groove first side and groove of the gear
Two side faces alignment.
7. the installation method of crankshaft front end gear power export structure as claimed in claim 6, which is characterized in that described first
Axial width dimension between flat horizontal surface and second flat horizontal surface is 1mm~6mm.
8. the installation method of crankshaft front end gear power export structure as claimed in claim 7, which is characterized in that the groove
Completely through the gear.
9. the installation method of crankshaft front end gear power export structure as claimed in claim 8, which is characterized in that the groove
First side and the groove second side are parallel to each other, and the groove first side and the groove second side along
The axisymmetrical of the gear center hole, the small 0~3mm of length of the depth dimensions of groove axis more flat than the crankshaft front end.
10. the installation method of crankshaft front end gear power export structure as claimed in claim 9, which is characterized in that described recessed
It is provided with fit-up gap between the two sides of slot and two flat horizontal surfaces of the flat axis, the size of the fit-up gap is 0~
0.5mm；It is also equipped with fit-up gap between the end face of the gear and the flat horizontal surface end face of flat axis, the fit-up gap is 0~
3mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811173888.3A CN109026976B (en) | 2018-10-09 | 2018-10-09 | Crankshaft front end gear power output structure and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811173888.3A CN109026976B (en) | 2018-10-09 | 2018-10-09 | Crankshaft front end gear power output structure and installation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109026976A true CN109026976A (en) | 2018-12-18 |
| CN109026976B CN109026976B (en) | 2023-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201811173888.3A Active CN109026976B (en) | 2018-10-09 | 2018-10-09 | Crankshaft front end gear power output structure and installation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159389A (en) * | 2019-05-23 | 2019-08-23 | 潍柴动力股份有限公司 | Oil pump drive gear installation method and Oil pump drive gear mounting structure |
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| JP2014134251A (en) * | 2013-01-10 | 2014-07-24 | Hino Motors Ltd | Gear press-fit structure of crank shaft |
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| WO2017212131A1 (en) * | 2016-06-08 | 2017-12-14 | Renault S.A.S | Mistake-proofing device for installation of a timing gear |
| CN208900520U (en) * | 2018-10-09 | 2019-05-24 | 广西玉柴机器股份有限公司 | Crankshaft front end gear power export structure |
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2018
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004092624A (en) * | 2002-09-04 | 2004-03-25 | Kawasaki Heavy Ind Ltd | Gear mounting structure of engine crankshaft |
| CN201377355Y (en) * | 2009-04-07 | 2010-01-06 | 广西玉柴机器股份有限公司 | Front end power output structure of crankshaft |
| CN102581548A (en) * | 2012-03-21 | 2012-07-18 | 天润曲轴股份有限公司 | Crankshaft timing gear assembling device |
| JP2014134251A (en) * | 2013-01-10 | 2014-07-24 | Hino Motors Ltd | Gear press-fit structure of crank shaft |
| WO2017212131A1 (en) * | 2016-06-08 | 2017-12-14 | Renault S.A.S | Mistake-proofing device for installation of a timing gear |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159389A (en) * | 2019-05-23 | 2019-08-23 | 潍柴动力股份有限公司 | Oil pump drive gear installation method and Oil pump drive gear mounting structure |
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| Publication number | Publication date |
|---|---|
| CN109026976B (en) | 2023-06-20 |
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