CN208900519U - Engine crankshaft front end gear connection structure - Google Patents
Engine crankshaft front end gear connection structure Download PDFInfo
- Publication number
- CN208900519U CN208900519U CN201821634053.9U CN201821634053U CN208900519U CN 208900519 U CN208900519 U CN 208900519U CN 201821634053 U CN201821634053 U CN 201821634053U CN 208900519 U CN208900519 U CN 208900519U
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- China
- Prior art keywords
- gear
- crankshaft
- connection structure
- crankshaft front
- notch
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- 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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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Gear Transmission (AREA)
Abstract
The utility model discloses a kind of engine crankshaft front end gear connection structures, comprising: crankshaft, wherein crankshaft front end is cylindrical crankshaft microcephaly, and the notch of crescent shape is provided on the circular bead surface being connected with crankshaft microcephaly；And gear, wherein be provided with gear center hole on gear, the boss of crescent shape is provided on one of end face of gear, the height of boss is 0~2mm smaller than the depth of notch.The engine crankshaft front end gear connection structure design of the utility model is simple, pass through the design of the notch and boss of crescent shape, the transmission capacity of crankshaft front end gear can be significantly increased, and be well adapted for high load capacity impact operating condition, thoroughly prevented crankshaft front end gear slipping, transfer failure.
Description
Technical field
The utility model is connected and is tied especially with regard to a kind of engine crankshaft front end gear about technical field of engines
Structure.
Background technique
Crankshaft is one of most important part in engine, it bears the power from connecting rod, and is converted into torque
It is exported by crankshaft, and other attachmentes on engine is driven to work.Wherein, crankshaft driving such as injection pump, valve actuating mechanism, hydraulic pump
When equal components, need to transmit output power from crankshaft front end by gear.
Traditional engine crankshaft front end gear connection structure is: between crankshaft front end microcephaly and gear using pin, key or
The methods of person's interference press fitting connection, and above-mentioned connection structure have the disadvantages that 1, using pin, key connection when, reduce crankshaft
The intensity of microcephaly and gear, transmission capacity is small, poor reliability；2, when using interference pressing method, capacity of resisting impact load is poor, tooth
The failures such as skidding, transfer are easy to appear between wheel and crankshaft microcephaly, so that 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 engine crankshaft front end gear connection structures, can greatly improve
The transmission capacity of crankshaft front end gear.
To achieve the above object, the utility model provides a kind of engine crankshaft front end gear connection structure, comprising: bent
Axis, wherein crankshaft front end is cylindrical crankshaft microcephaly, and lacking for crescent shape is provided on the circular bead surface being connected with crankshaft microcephaly
Mouthful；And gear, wherein be provided with gear center hole on gear, be provided with the convex of crescent shape on one of end face of gear
The height of platform, boss is 0~2mm smaller than the depth of notch.
In a preferred embodiment, the depth of notch is 1~5mm.
In a preferred embodiment, gear assemble when, crankshaft microcephaly pass through gear center hole, and crankshaft microcephaly with
Gear center hole is interference fit.
In a preferred embodiment, boss is aligned assembly with notch, after gear is assembled to position in crankshaft microcephaly,
There are fit-up gaps for the top surface of boss and the end face of notch.
In a preferred embodiment, fit-up gap is 0~2mm.
Compared with prior art, engine crankshaft front end gear connection structure according to the present utility model has 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, design is simple, structurally reasonable, good reliability, has and promotes well
Application value.
Detailed description of the invention
Fig. 1 is the main view according to the crankshaft front end gear connection structure of one embodiment of the utility model.
Fig. 2 is the left view according to the crankshaft front end gear connection structure of one embodiment of the utility model.
Fig. 3 is the axonometric drawing according to the crankshaft front end gear connection 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 installation diagram according to the crankshaft front end gear connection structure of one embodiment of the utility model.
Main appended drawing reference explanation:
1- crankshaft, 11- crankshaft microcephaly, 12- notch, 2- gear, 21- gear center hole, 22- boss.
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 Figures 1 to 5, according to the engine crankshaft front end gear connection structure of the preferred embodiments of the present invention
It include: crankshaft 1 and gear 2, wherein crankshaft front end is cylindrical crankshaft microcephaly 11, the shoulder being connected with crankshaft microcephaly 11
The notch 12 of crescent shape is provided on face.It is provided with gear center hole 21 on gear 2, is arranged on one of end face of gear 2
There is the boss 22 of crescent shape, the height of boss 22 is 0~2mm smaller than the depth of notch 12.
In above scheme, the depth of notch is 1~5mm.
As shown in fig. 6, crankshaft microcephaly 11 passes through gear center hole 21, and crankshaft microcephaly 11 and tooth when gear 2 assembles
Taking turns centre bore 21 is interference fit.Boss 22 is aligned assembly with notch 12, after gear 2 is assembled to position in crankshaft microcephaly 11,
There are fit-up gaps for the top surface of boss 22 and the end face of notch 12.Preferably, fit-up gap is 0~2mm.
The engine crankshaft front end gear connection structure design of the utility model is simple, passes through the notch and boss of crescent shape
Design, the transmission capacity of crankshaft front end gear can be significantly increased, and be well adapted for high load capacity impact operating condition, thoroughly
Crankshaft front end gear slipping, transfer failure are prevented.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can be realized and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (5)
1. a kind of engine crankshaft front end gear connection structure, which is characterized in that engine crankshaft front end gear connection structure packet
It includes:
Crankshaft, wherein the crankshaft front end is cylindrical crankshaft microcephaly, is arranged on the circular bead surface being connected with the crankshaft microcephaly
There is the notch of crescent shape；And
Gear, wherein be provided with gear center hole on the gear, be provided with crescent shape on one of end face of the gear
Boss, the height of the boss is 0~2mm smaller than the depth of the notch.
2. engine crankshaft front end gear connection structure as described in claim 1, which is characterized in that the depth of the notch is
1~5mm.
3. engine crankshaft front end gear connection structure as described in claim 1, which is characterized in that when the gear assembles,
The crankshaft microcephaly passes through the gear center hole, and the crankshaft microcephaly and the gear center hole are interference fit.
4. engine crankshaft front end gear connection structure as claimed in claim 3, which is characterized in that the boss is lacked with described
Mouth alignment assembly, after the gear is assembled to position in the crankshaft microcephaly, the end of the top surface of the boss and the notch
There are fit-up gaps in face.
5. engine crankshaft front end gear connection structure as claimed in claim 4, which is characterized in that the fit-up gap is 0
~2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821634053.9U CN208900519U (en) | 2018-10-09 | 2018-10-09 | Engine crankshaft front end gear connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821634053.9U CN208900519U (en) | 2018-10-09 | 2018-10-09 | Engine crankshaft front end gear connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208900519U true CN208900519U (en) | 2019-05-24 |
Family
ID=66575106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821634053.9U Active CN208900519U (en) | 2018-10-09 | 2018-10-09 | Engine crankshaft front end gear connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208900519U (en) |
-
2018
- 2018-10-09 CN CN201821634053.9U patent/CN208900519U/en active Active
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