CN208900520U - Crankshaft front end gear power export structure - Google Patents
Crankshaft front end gear power export structure Download PDFInfo
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- CN208900520U CN208900520U CN201821634069.XU CN201821634069U CN208900520U CN 208900520 U CN208900520 U CN 208900520U CN 201821634069 U CN201821634069 U CN 201821634069U CN 208900520 U CN208900520 U CN 208900520U
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- gear
- groove
- crankshaft
- horizontal surface
- flat horizontal
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Abstract
The utility model discloses a kind of crankshaft front end gear power export structure, 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.The crankshaft front end gear power export structure of the utility model significantly improves the transmission capacity of crankshaft front end gear.
Description
Technical field
The utility model is to export about engine design field especially with regard to a kind of crankshaft front end gear power
Structure.
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 the general background of the utility model, and
It is not construed as recognizing or implying in any form that information composition is already known to those of ordinary skill in the art existing
Technology.
Utility model content
The purpose of this utility model is to provide a kind of crankshaft front end gear power export structures, can significantly improve song
The transmission capacity of axis front end gear.
To achieve the above object, the utility model provides a kind of crankshaft front end gear power export structure, comprising: bent
Axis, wherein be provided with flat axis on the connected shaft part of crankshaft front end crankshaft microcephaly；And wherein, the upper and lower sides of flat axis are respectively set
There are the 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 second
Flat horizontal surface is symmetrical along the trunnion center line of crankshaft；And gear, wherein gear center hole is provided on gear；And its
In, be machined with one of groove on one of end face of gear, the section of groove be it is rectangular, two sides of groove are recessed respectively
Slot first side and groove second side；And wherein, when gear to be assembled on crankshaft, the groove and song of the end face of gear
The flat shaft assignment of axis front end assembles, the first flat horizontal surface and the second flat horizontal surface of crankshaft respectively with the groove first side of gear and recessed
The alignment of slot second side.
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, the crankshaft front end gear power export structure of the utility model has the advantages that 1, energy
The transmission capacity of crankshaft front end gear is enough significantly increased；2, it can be well adapted for high load capacity impact operating condition, thoroughly prevented
Crankshaft front end gear slipping, transfer failure；3, the crankshaft front end gear power export structure of the utility model, design is reasonable,
Good reliability has highly application value.
Detailed description of the invention
Fig. 1 is the main view according to the crankshaft front end structure of one embodiment of the utility model.
Fig. 2 is the left view according to the crankshaft front end structure of one embodiment of the utility model.
Fig. 3 is the axonometric drawing according to the crankshaft front end structure of one embodiment of the utility model.
Fig. 4 is the main view according to the gear of one embodiment of the utility model.
Fig. 5 is the right view according to the gear of one embodiment of the utility model.
Fig. 6 is the axonometric drawing according to the gear of one embodiment of the utility model.
Fig. 7 is the installation diagram according to the crankshaft front end gear power export structure of one embodiment of the utility model.
Specific embodiment
With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail, it is to be understood that this is practical
Novel protection scope 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 installation method of the crankshaft front end gear power export structure of the utility model includes the following steps: in crankshaft front end
Flat axis is opened up on the connected shaft part of crankshaft microcephaly；Wherein, the upper and lower sides of flat axis are respectively arranged with the first flat horizontal surface and second flat
Face, 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 the trunnion of crankshaft
Center line is symmetrical；Gear center hole is set on gear；One of groove is processed on one of end face of gear, groove is cut
Face be it is rectangular, two sides of groove are groove first side and groove second side respectively；And gear is assembled to crankshaft
On, wherein the groove of the end face of gear and the flat shaft assignment of crankshaft front end assemble, the first flat horizontal surface and the second flat horizontal surface of crankshaft
It is aligned respectively with the groove first side of gear and groove second side.
It states and is in order to illustrate and illustration purpose.These descriptions are not wishing to for the utility model to be limited to disclosed accurate
Form, and it will be apparent that according to the above instruction, many changes and variations can be made.To exemplary embodiment carry out selection and
The purpose of description is to explain the certain principles and practical application of the utility model, so that those skilled in the art's energy
Enough realize and utilize a variety of different exemplary implementation schemes and various chooses and changes of the utility model.This reality
It is intended to be limited by claims and its equivalents with novel range.
Claims (5)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821634069.XU CN208900520U (en) | 2018-10-09 | 2018-10-09 | Crankshaft front end gear power export structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821634069.XU CN208900520U (en) | 2018-10-09 | 2018-10-09 | Crankshaft front end gear power export structure |
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| Publication Number | Publication Date |
|---|---|
| CN208900520U true CN208900520U (en) | 2019-05-24 |
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ID=66575075
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821634069.XU Active CN208900520U (en) | 2018-10-09 | 2018-10-09 | Crankshaft front end gear power export structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026976A (en) * | 2018-10-09 | 2018-12-18 | 广西玉柴机器股份有限公司 | Crankshaft front end gear power export structure and its installation method |
-
2018
- 2018-10-09 CN CN201821634069.XU patent/CN208900520U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026976A (en) * | 2018-10-09 | 2018-12-18 | 广西玉柴机器股份有限公司 | Crankshaft front end gear power export structure and its installation method |
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