CN105587751A - Crank and connecting rod mechanism of engine of hay mower - Google Patents
Crank and connecting rod mechanism of engine of hay mower Download PDFInfo
- Publication number
- CN105587751A CN105587751A CN201410627854.2A CN201410627854A CN105587751A CN 105587751 A CN105587751 A CN 105587751A CN 201410627854 A CN201410627854 A CN 201410627854A CN 105587751 A CN105587751 A CN 105587751A
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- CN
- China
- Prior art keywords
- crank
- pin
- keyway
- key
- pin shaft
- 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.)
- Pending
Links
- 230000004323 axial length Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Abstract
The invention discloses a crank and connecting rod mechanism of an engine of a hay mower. The crank and connecting rod mechanism comprises a left crank, a right crank, a connecting rod, a crank pin shaft and a bearing. The bearing is fixed in a bearing hole in one end of the connecting rod and located between the left crank and the right crank, and the bearing, the left crank and the right crank are connected through the crank pin shaft. The crank and connecting rod mechanism is characterized in that a left pin shaft key and a right pin shaft key are further included, a left crank key groove is formed in an eccentric hole of the left crank, and a right crank key groove is formed in an eccentric hole of the right crank; and a left pin shaft key groove and a right pin shaft key groove are formed in the crank pin shaft, the left pin shaft key is mounted in the left crank key groove and the left pin shaft key groove, and the right pin shaft key is mounted in the right crank key groove and the right pin shaft key groove. Compared with a traditional crank and connecting rod mechanism, the pin shaft keys are additionally arranged at the joints of the crank pin shaft and the cranks, pin key connection is added to a transmission crankshaft under the condition of interference fit, the function of increasing torque is achieved, work performance can be met well, and durability is achieved.
Description
Technical field
The present invention relates to technical field of engines, be specifically related to the toggle of the engine that is suitable for hay mover.
Background technology
Toggle is the key components and parts in lawn mower engine, for the reciprocating motion of piston is changed into rotatablely moving of crank. Along with people are more and more higher to the performance requirement of hay mover, engine speed-raising product fast, that explosive force is strong, twisted spindle rotating speed is high more and more receives an acclaim, and toggle is as the vitals of transmitting torque, and performance has much room for improvement.
Summary of the invention
The invention discloses a kind of toggle that is applicable to lawn mower engine, to meet the demand of high torsion output.
In order to reach above-mentioned object, the present invention adopts following concrete technical scheme:
A kind of toggle of lawn mower engine, comprise left crank, right crank, connecting rod, crank pin and bearing, described bearing is fixed in the dead eye of connecting rod one end, bearing is positioned at a left side, between right crank, three connects by crank pin, it is characterized in that: also comprise left pin key and right pin key, a described left side, a distance left side on the eccentric orfice of right crank, the closest approach place of right crank axis of rotation has a left side, right crank keyway, on described crank-pin, have left bearing pin keyway and right bearing pin keyway, described left pin key is installed in left crank keyway and left bearing pin keyway, described right pin key is installed in right crank keyway and right bearing pin keyway.
Further, described left pin key equates with the axial length of left bearing pin keyway, and right pin key equates with the axial length of right bearing pin keyway.
Further, described left pin key and right pin key are column type key, and the left and right crank keyway and the left and right bearing pin keyway that coordinate are with it face of cylinder type keyway.
Further, the diameter of axle equal and opposite in direction of described left pin key and right pin key.
Further, the axial length of described left pin key is not less than the axial length of right pin key.
The present invention's advantage is compared with prior art: the junction at crank pin and crank has installed pin key additional, and driving crank increases pin key connection and plays increase twisting force in the situation that of interference fit, and is well positioned to meet service behaviour, durable.
Brief description of the drawings
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is the left view of left crank of the present invention;
Fig. 3 is the front view of crank pin of the present invention;
Fig. 4 is the cutaway view of crank pin of the present invention along A-A face;
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Detailed description of the invention
In order further to explain technical scheme of the present invention, below by specific embodiment, the present invention will be described in detail.
Embodiment 1:
As shown in Fig. 1～4, a kind of toggle of lawn mower engine, comprise left crank 1, right crank 2, connecting rod 3, crank pin 4, left pin key 51, right pin key 52 and bearing 6, described bearing 6 is fixed in the dead eye of connecting rod 3 one end, bearing 6 is positioned at a left side, right crank 1, between 2, three connects by crank pin 4, described left pin key 51 and right pin key 52 are column type key, left pin key 51 is identical with the diameter of axle equal and opposite in direction length of right pin key 52, described left crank 1, the left crank 1 of distance on the eccentric orfice of right crank 2, the closest approach place of right crank 2 axis of rotation has the left crank keyway 11 of face of cylinder type, right crank keyway 21, on described crank-pin 4, have left bearing pin keyway 41 and the right bearing pin keyway 42 of face of cylinder type, described left pin key 51 is installed in left crank keyway 11 and left bearing pin keyway 41, described right pin key 52 is installed in right crank keyway 12 and right bearing pin keyway 42. described left pin key 51 equates with the axial length of left bearing pin keyway 41, and right pin key 52 equates with the axial length of right bearing pin keyway 42.
Embodiment 2:
Differently from embodiment 1 be that the length of left pin key 51 is greater than the length of right pin key 52, its Length Ratio is identical with the Length Ratio of right crank 2 with left crank 1.
Above record, only, for utilizing the embodiment of this origination techniques content, modification, variation that any those skilled in the art use this creation to do, all belong to the scope of the claims that this creation is advocated, and be not limited to those disclosed embodiments.
Claims (5)
1. the toggle of a lawn mower engine, comprise left crank (1), right crank (2), connecting rod (3), crank pin (4) and bearing (6), described bearing (6) is fixed in the dead eye of connecting rod (3) one end, bearing (6) is positioned at a left side, right crank (1, 2) between, three connects by crank pin (4), it is characterized in that: also comprise left pin key (51) and right pin key (52), a described left side, right crank (1, 2) a distance left side on eccentric orfice, right crank (1, 2) the closest approach place of axis of rotation has a left side, right crank keyway (11, 21), on described crank-pin (4), have left bearing pin keyway (41) and right bearing pin keyway (42), described left pin key (51) is installed in left crank keyway (11) and left bearing pin keyway (41), described right pin key (52) is installed in right crank keyway (12) and right bearing pin keyway (42).
2. the toggle of a kind of lawn mower engine according to claim 1, is characterized in that: described left pin key (51) equates with the axial length of left bearing pin keyway (41), and right pin key (52) equates with the axial length of right bearing pin keyway (42).
3. the toggle of a kind of lawn mower engine according to claim 2, it is characterized in that: described left pin key (51) and right pin key (52) are column type key, the left and right crank keyway (11,21) and the left and right bearing pin keyway (41,42) that coordinate are with it face of cylinder type keyway.
4. the toggle of a kind of lawn mower engine according to claim 3, is characterized in that: the diameter of axle equal and opposite in direction of described left pin key (51) and right pin key (52).
5. the toggle of a kind of lawn mower engine according to claim 4, is characterized in that: the axial length of described left pin key (51) is not less than the axial length of right pin key (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410627854.2A CN105587751A (en) | 2014-11-11 | 2014-11-11 | Crank and connecting rod mechanism of engine of hay mower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410627854.2A CN105587751A (en) | 2014-11-11 | 2014-11-11 | Crank and connecting rod mechanism of engine of hay mower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105587751A true CN105587751A (en) | 2016-05-18 |
Family
ID=55927574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410627854.2A Pending CN105587751A (en) | 2014-11-11 | 2014-11-11 | Crank and connecting rod mechanism of engine of hay mower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105587751A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004293780A (en) * | 2003-03-13 | 2004-10-21 | Ntn Corp | Support structure in crank mechanism, and component part for crank mechanism |
| CN101705961A (en) * | 2009-11-23 | 2010-05-12 | 中国船舶重工集团公司第七二五研究所 | Method for connecting metal flanges with composite material transmission shaft formed by winding |
| CN203034340U (en) * | 2012-12-26 | 2013-07-03 | 龙工(上海)机械制造有限公司 | Welding structure of road roller vibration exciter |
| CN203783677U (en) * | 2014-04-23 | 2014-08-20 | 温岭市联星机械有限公司 | Crankshaft and connecting rod mechanism |
| CN204239440U (en) * | 2014-11-11 | 2015-04-01 | 福建省飞驰机械工业有限公司 | A kind of connecting rod of lawn mower engine |
-
2014
- 2014-11-11 CN CN201410627854.2A patent/CN105587751A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004293780A (en) * | 2003-03-13 | 2004-10-21 | Ntn Corp | Support structure in crank mechanism, and component part for crank mechanism |
| CN101705961A (en) * | 2009-11-23 | 2010-05-12 | 中国船舶重工集团公司第七二五研究所 | Method for connecting metal flanges with composite material transmission shaft formed by winding |
| CN203034340U (en) * | 2012-12-26 | 2013-07-03 | 龙工(上海)机械制造有限公司 | Welding structure of road roller vibration exciter |
| CN203783677U (en) * | 2014-04-23 | 2014-08-20 | 温岭市联星机械有限公司 | Crankshaft and connecting rod mechanism |
| CN204239440U (en) * | 2014-11-11 | 2015-04-01 | 福建省飞驰机械工业有限公司 | A kind of connecting rod of lawn mower engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160518 |