CN109654202B - PTO gear engagement structure - Google Patents
PTO gear engagement structure Download PDFInfo
- Publication number
- CN109654202B CN109654202B CN201910116771.XA CN201910116771A CN109654202B CN 109654202 B CN109654202 B CN 109654202B CN 201910116771 A CN201910116771 A CN 201910116771A CN 109654202 B CN109654202 B CN 109654202B
- Authority
- CN
- China
- Prior art keywords
- gear
- positioning pin
- hole
- positioning
- flywheel housing
- 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.)
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Links
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
Classifications
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- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/30—Flywheels
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- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
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- 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
- F16H57/00—General details of gearing
- F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a PTO gear engagement structure, comprising: an intermediate idler gear, a flywheel housing and a PTO gear. A first positioning pin hole and a second positioning pin hole are respectively formed at two ends of the middle idler gear, and one end of the middle idler gear is fixed on the cylinder body through the cooperation of the first positioning pin and the first positioning pin hole; the flywheel housing is correspondingly matched with a second positioning pin hole of the middle idler gear through a second positioning pin, so that the flywheel housing is fixed on the middle idler gear, and a first positioning hole is formed in the flywheel housing; and the PTO gear is fixed on the flywheel housing through a first positioning hole of the flywheel housing, and the PTO gear is meshed with the intermediate idler gear. Therefore, the PTO gear meshing structure is simple and reasonable in structure, and noise caused by gear transmission can be greatly reduced.
Description
Technical Field
The invention relates to the technical field of engines, in particular to a PTO gear meshing structure.
Background
In the conventional machine, the flywheel housing is directly positioned on the machine body, and the positioning hole of the intermediate idler gear assembly has a tolerance with respect to the cylinder block (crankshaft center hole), the positioning pin hole of the flywheel housing has a tolerance with respect to the cylinder block (crankshaft center hole), and the positioning spigot of the PTO (power take off) gear has a tolerance with respect to the positioning pin hole of the flywheel housing, so that the tolerance of the PTO gear and the intermediate idler gear assembly is particularly large, the meshing gap between the gears is large, and the noise is correspondingly large.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a PTO gear meshing structure which is simple and reasonable in structure and can greatly reduce noise caused by gear transmission.
To achieve the above object, the present invention provides a PTO gear engagement structure including: an intermediate idler gear, a flywheel housing and a PTO gear. A first positioning pin hole and a second positioning pin hole are respectively formed at two ends of the middle idler gear, and one end of the middle idler gear is fixed on the cylinder body through the cooperation of the first positioning pin and the first positioning pin hole; the flywheel housing is correspondingly matched with a second positioning pin hole of the middle idler gear through a second positioning pin, so that the flywheel housing is fixed on the middle idler gear, and a first positioning hole is formed in the flywheel housing; and the PTO gear is fixed on the flywheel housing through a first positioning hole of the flywheel housing, and the PTO gear is meshed with the intermediate idler gear.
In a preferred embodiment, a second positioning hole is further formed in the flywheel housing, and the second positioning hole is used for correspondingly matching with the second positioning pin and the second positioning pin hole.
In a preferred embodiment, the first positioning pin hole and the second positioning pin hole are respectively arranged at the middle parts of the two ends of the middle idler gear.
In a preferred embodiment, the first registration pin hole is coaxial with the second registration pin hole.
Compared with the prior art, the PTO gear meshing structure has a simple and reasonable structure, and can greatly reduce noise caused by gear transmission.
Drawings
Fig. 1 is a schematic front view of a PTO gear engagement structure according to an embodiment of the present invention.
Fig. 2 is a schematic rear view of a PTO gear engagement structure according to an embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view of an intermediate idler gear of a PTO gear engagement structure according to an embodiment of the present invention.
The main reference numerals illustrate:
1-middle idler gear, 11-first locating pin, 12-second locating pin, 2-flywheel shell, 21-first locating hole, 22-second locating hole, 3-PTO gear.
Detailed Description
The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
As shown in fig. 1 to 3, fig. 1 is a schematic front view of a PTO gear engagement structure according to an embodiment of the present invention; FIG. 2 is a schematic rear view of a PTO gear engagement structure according to an embodiment of the present invention; fig. 3 is a schematic cross-sectional view of an intermediate idler gear of a PTO gear engagement structure according to an embodiment of the present invention.
A PTO gear engagement structure according to a preferred embodiment of the present invention includes: an intermediate idler gear 1, a flywheel housing 2 and a PTO gear 3. A first positioning pin 11 hole and a second positioning pin 12 hole are respectively formed in two ends of the middle idler gear 1, and one end of the middle idler gear 1 is fixed on the cylinder body through the cooperation of the first positioning pin 11 and the first positioning pin 11 hole; the flywheel housing 2 is correspondingly matched with a second positioning pin 12 hole of the intermediate idle gear 1 through a second positioning pin 12, so that the flywheel housing 2 is fixed on the intermediate idle gear 1, and a first positioning hole 21 is formed in the flywheel housing 2; and the PTO gear 3 is fixed to the flywheel housing 2 through the first positioning hole 21 of the flywheel housing 2, and the PTO gear 3 is meshed with the intermediate idler gear 1.
In a preferred embodiment, the flywheel housing 2 is further provided with a second positioning hole 22, and the second positioning hole 22 is used for correspondingly matching with the second positioning pin 12 and the second positioning pin 12 hole; the first positioning pin 11 hole and the second positioning pin 12 hole are respectively formed in the middle parts of the two ends of the middle idler gear 1; the first locating pin 11 hole is coaxial with the second locating pin 12 hole.
In practical application, the technical problem to be solved by the PTO gear meshing structure is to ensure the coaxiality of the first positioning pin 11 and the second positioning pin 12 according to the arrangement of the gear train of the engine, so that the meshing gap of the PTO gear 3 and the intermediate idle gear 1 is accurately controlled, and larger noise generated by the overlarge gap between the PTO gear 3 and the idle gear when the gear train works is reduced. In detail: the PTO gear engagement structure of the present invention includes: an intermediate idler gear 1, a flywheel housing 2 and a PTO gear 3. The intermediate idle gear 1 is positioned on the cylinder body through the first positioning pin 11, the second positioning pin 12 is used for positioning the flywheel housing 2, by controlling the coaxiality of the first positioning pin 11 and the second positioning pin 12 and the tolerance between the first positioning hole 21 (the positioning spigot of the PTO gear 3) and the second positioning hole 22 on the flywheel housing 2, the meshing clearance between the PTO gear 3 and the intermediate idle gear 1 is controlled, because the PTO gear 3 is positioned through the first positioning hole 21 (the positioning spigot of the PTO gear 3) of the flywheel housing 2, and the flywheel housing 2 is positioned through the intermediate idle gear 1 (the positioning spigot of the second positioning hole 22) inserted into the second positioning pin 12), so that the size chain of the positioning spigot of the PTO gear 3 is equivalent to only two size chains, the tolerance can be accurately ensured, if the first positioning pin 11 hole and the second positioning pin 12 hole are connected, namely, the shaft seat of the intermediate idle gear 1 is penetrated, the first positioning pin 11 and the second positioning pin 12 are equivalent to the coaxial, and the clearance can be controlled by only controlling the positioning hole 21 and the second positioning pin 12, and the meshing clearance can be controlled only by the clearance; and the first positioning pin 11 and the second positioning pin 12 of the intermediate idle gear 1 are either integrated (integrated on the shaft of the intermediate idle gear 1) or made separately or the center of the idle gear shaft is drilled through and inserted by a pin.
In a word, the engagement structure of the PTO gear is simple and reasonable in structure, the PTO gear is positioned by the spigot of the flywheel housing, and the flywheel housing is positioned by the middle idler gear, so that the number of chains of the whole size is greatly reduced, the distance tolerance between the PTO gear and the middle idler gear can be greatly reduced, namely the engagement clearance between the PTO gear and the middle idler gear is greatly reduced, and noise caused by gear transmission is greatly reduced.
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (2)
1. A PTO gear engagement structure comprising:
the two ends of the middle idler gear are respectively provided with a first positioning pin hole and a second positioning pin hole, and one end of the middle idler gear is fixed on the cylinder body through the cooperation of a first positioning pin and the first positioning pin hole;
the flywheel housing is correspondingly matched with the second positioning pin hole of the intermediate idler gear through a second positioning pin, so that the flywheel housing is fixed on the intermediate idler gear, and a first positioning hole is formed in the flywheel housing; and
the PTO gear is fixed on the flywheel housing through the first positioning hole of the flywheel housing, and is meshed with the intermediate idler gear;
a second positioning hole is further formed in the flywheel shell, and the second positioning hole is used for being correspondingly matched with the second positioning pin and the second positioning pin hole;
the first positioning pin hole and the second positioning pin hole are respectively formed in the middle parts of the two ends of the middle idler gear.
2. The PTO gear engagement structure of claim 1, wherein the first dowel pin hole is coaxial with the second dowel pin hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910116771.XA CN109654202B (en) | 2019-02-15 | 2019-02-15 | PTO gear engagement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910116771.XA CN109654202B (en) | 2019-02-15 | 2019-02-15 | PTO gear engagement structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109654202A CN109654202A (en) | 2019-04-19 |
| CN109654202B true CN109654202B (en) | 2024-02-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910116771.XA Active CN109654202B (en) | 2019-02-15 | 2019-02-15 | PTO gear engagement structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN109654202B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008201303A (en) * | 2007-02-21 | 2008-09-04 | Yanmar Co Ltd | Transmission |
| CN201434046Y (en) * | 2009-05-12 | 2010-03-31 | 青岛海之冠汽车配件制造有限公司 | Automobile engine flywheel assembly |
| CN103422928A (en) * | 2013-07-18 | 2013-12-04 | 东风朝阳朝柴动力有限公司 | Diesel engine timing locating method |
| JP2018173033A (en) * | 2017-03-31 | 2018-11-08 | 株式会社 神崎高級工機製作所 | Engine start power generation unit and hydraulic circuit |
| CN209524071U (en) * | 2019-02-15 | 2019-10-22 | 广西玉柴机器股份有限公司 | PTO gear engagement structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005502543A (en) * | 2001-09-26 | 2005-01-27 | ルーク ラメレン ウント クツプルングスバウ ベタイリグングス コマンディートゲゼルシャフト | Drive device |
-
2019
- 2019-02-15 CN CN201910116771.XA patent/CN109654202B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008201303A (en) * | 2007-02-21 | 2008-09-04 | Yanmar Co Ltd | Transmission |
| CN201434046Y (en) * | 2009-05-12 | 2010-03-31 | 青岛海之冠汽车配件制造有限公司 | Automobile engine flywheel assembly |
| CN103422928A (en) * | 2013-07-18 | 2013-12-04 | 东风朝阳朝柴动力有限公司 | Diesel engine timing locating method |
| JP2018173033A (en) * | 2017-03-31 | 2018-11-08 | 株式会社 神崎高級工機製作所 | Engine start power generation unit and hydraulic circuit |
| CN209524071U (en) * | 2019-02-15 | 2019-10-22 | 广西玉柴机器股份有限公司 | PTO gear engagement structure |
Non-Patent Citations (2)
| Title |
|---|
| 奚金平 ; .往复式摆动搅拌机的传动结构分析及改进.石油化工技术与经济.2010,(04),全文. * |
| 杨坤林 ; .一种飞轮定位工装的设计.机械工程师.2016,(12),全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109654202A (en) | 2019-04-19 |
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