CN107166013A - The gear structure of adjustable backlash - Google Patents
The gear structure of adjustable backlash Download PDFInfo
- Publication number
- CN107166013A CN107166013A CN201710571753.1A CN201710571753A CN107166013A CN 107166013 A CN107166013 A CN 107166013A CN 201710571753 A CN201710571753 A CN 201710571753A CN 107166013 A CN107166013 A CN 107166013A
- Authority
- CN
- China
- Prior art keywords
- gear
- gear shaft
- alignment pin
- cylinder head
- positioning hole
- 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
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
- 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
-
- 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)
- Gears, Cams (AREA)
Abstract
The invention discloses a kind of gear structure of adjustable backlash, it is used to cover gear fixed to cylinder, and gear structure includes alignment pin, gear shaft and sloth wheel gear.Gear shaft, which is used to be fixed to have on cylinder head, the end face of gear shaft, is used for the positioning hole that alignment pin is worn, and the center of positioning hole and the center of gear shaft diametrically have certain deviation；Sloth wheel gear is rotatably sheathed on gear shaft；Wherein when gear shaft is unlocked to be installed in cylinder head, gear shaft can be using alignment pin as axis swing certain angle.The present invention can smoothly complete installation in the case where exempting frock clamp, reduce maintenance difficult, and efficiency of assembling is high.
Description
Technical field
It is more particularly to a kind of to be used to gear being fixed to what cylinder was covered the present invention relates to engine assembly field
The gear structure of adjustable backlash.
Background technology
In the engine gear transmission system designed at present, if engine uses overhead-cam design, gear drive
System will have one layer of pad in the middle of cylinder cap, the centre-to-centre spacing of gear influenced whether, so as to influence across engine body and cylinder cap
The sideshake of gear.General existing technical solution, is, by frock, to have good positioning after the centre-to-centre spacing of two gears, tighten spiral shell
Bolt, then remove frock.The shortcoming of prior art is：
1. assembling engine needs tool locating, assembly technology is complicated, and efficiency of assembling is low.
2. needing to match somebody with somebody independent frock after sale, it is unfavorable for after-sale service.
How can solve without frock assembling gear system, the problem of how ensureing gear normal sideshake be the industry urgently
To be solved the problem of.
The information for being disclosed in the background section is merely intended to understanding of the increase to the general background of the present invention, without answering
When the prior art for being considered as recognizing or implying the information structure in any form well known to persons skilled in the art.
The content of the invention
It is an object of the invention to provide a kind of gear structure of adjustable backlash, so as to overcome the assembling needs of prior art
Frock, efficiency of assembling is low, is unfavorable for the shortcoming of after-sale service.
To achieve the above object, the invention provides a kind of gear structure of adjustable backlash, it is used to gear being fixed to
Cylinder is covered, and gear structure includes alignment pin, gear shaft and sloth wheel gear.Gear shaft is used to be fixed at cylinder
Cover, having on the end face of gear shaft is used for the positioning hole that alignment pin is worn, and the center of positioning hole and the center of gear shaft are in footpath
There is certain deviation upwards；Sloth wheel gear is rotatably sheathed on gear shaft；Wherein cylinder head is installed in when gear shaft is unlocked
When upper, gear shaft can be using alignment pin as axis swing certain angle.
Compared with prior art, the present invention has the advantages that：1. regulation gear backlash need not use positioning
Frock clamp；2. reduce the difficulty of after-sales service；3. effectively improving efficiency of assembling, more preferable economic benefit is realized.
Brief description of the drawings
Fig. 1 is the gear shaft and the schematic perspective view of alignment pin of the gear structure of the adjustable backlash according to the present invention.
Fig. 2 is the gear shaft and the schematic elevation view of alignment pin of the gear structure of the adjustable backlash according to the present invention.
Fig. 3 be according to the present invention adjustable backlash gear structure sloth wheel gear and timing gears and idle gear
Position view.
Main Reference Numerals explanation：
1- alignment pins, 2- gear shafts, 21- positioning holes, 3- sloth wheel gears, 4- timing gears, 5- idle gears.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment to the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not limited by embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " comprising " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other members
Part or other parts.
As shown in Figure 1 to Figure 3, according to a kind of gear structure of adjustable backlash of the specific embodiment of the invention, it is used for
Gear is covered fixed to cylinder, gear structure includes alignment pin 1, gear shaft 2 and sloth wheel gear 3.Gear shaft 2 is used
In being fixed in cylinder head, having on the end face of gear shaft 2 is used for the positioning hole 21 that alignment pin 1 is worn, positioning hole 21
Center and the center of gear shaft 2 diametrically have certain deviation；Sloth wheel gear 3 is rotatably sheathed on gear shaft 2；Wherein when
Gear shaft 2 is unlocked when being installed in cylinder head, and gear shaft 2 can be with alignment pin 1 for axis swing certain angle α.
In some embodiments, concrete operations of the invention are：First sloth wheel gear 3 is set on gear shaft 2, then
Gear shaft 2 and sloth wheel gear 3 are hubbed to the positioning counterbore in cylinder head with alignment pin 1 by the positioning hole 21 on gear shaft 2
On；Gear shaft 2 and sloth wheel gear 3 now can swing certain angle α centered on alignment pin 1, as shown in Fig. 3 dotted lines；
The sideshake between sloth wheel gear 3 and timing gears 4 and idle gear 5 is adjusted using the swing of sloth wheel gear 3, treats that sideshake is adjusted
After suitable, then with bolt gear shaft 2 is fixed on cylinder cover, the completely left out installation steps using frock clamp.
In summary, the gear structure of adjustable backlash of the invention is only just completed with an alignment pin and in the prior art must
Efficiency of assembling must be greatly improved using the achievable installation process of frock clamp, and it is random special without wearing
Frock clamp, simplify after-sale service, and saved cost, improve economic benefit.
It is foregoing to the present invention specific illustrative embodiment description be 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 above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that the certain principles and its reality of the present invention should
With so that those skilled in the art can realize and using the present invention a variety of exemplaries and
A variety of selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (1)
1. a kind of gear structure of adjustable backlash, it is used for the cylinder head that gear is fixed to engine, it is characterised in that institute
Stating gear structure includes：
Alignment pin；
Gear shaft, wears for being fixed to have on the cylinder head, the end face of the gear shaft for the alignment pin
If positioning hole, the center of the center of the positioning hole and the gear shaft diametrically has certain deviation；And
Sloth wheel gear, can rotatably be sheathed on the gear shaft；
Wherein when the gear shaft is unlocked to be installed in the cylinder head, the gear shaft can be using the alignment pin as axle
The heart swings certain angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710571753.1A CN107166013A (en) | 2017-07-13 | 2017-07-13 | The gear structure of adjustable backlash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710571753.1A CN107166013A (en) | 2017-07-13 | 2017-07-13 | The gear structure of adjustable backlash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107166013A true CN107166013A (en) | 2017-09-15 |
Family
ID=59818585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710571753.1A Pending CN107166013A (en) | 2017-07-13 | 2017-07-13 | The gear structure of adjustable backlash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107166013A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236954A (en) * | 2018-11-09 | 2019-01-18 | 广西玉柴机器股份有限公司 | engine idle gear component |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56118507A (en) * | 1980-02-23 | 1981-09-17 | Yamaha Motor Co Ltd | Driver for over head cam shaft of engine |
| JP2001280421A (en) * | 2000-03-29 | 2001-10-10 | Mazda Motor Corp | Method of adjusting balance shaft backlash of engine |
| CN101349173A (en) * | 2008-09-03 | 2009-01-21 | 无锡开普机械有限公司 | Apparatus for adjusting gear backlash of engine |
| CN201258767Y (en) * | 2008-09-03 | 2009-06-17 | 无锡开普机械有限公司 | Gear backlash adjustment device for engine |
| CN101915296A (en) * | 2010-06-25 | 2010-12-15 | 重庆长安汽车股份有限公司 | Driven gear assembly of engine |
| CN103765048A (en) * | 2011-08-24 | 2014-04-30 | 卡特彼勒公司 | Improved gear backlash tool and method of using same |
| CN206889620U (en) * | 2017-07-13 | 2018-01-16 | 广西玉柴机器股份有限公司 | The gear structure of adjustable backlash |
-
2017
- 2017-07-13 CN CN201710571753.1A patent/CN107166013A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56118507A (en) * | 1980-02-23 | 1981-09-17 | Yamaha Motor Co Ltd | Driver for over head cam shaft of engine |
| JP2001280421A (en) * | 2000-03-29 | 2001-10-10 | Mazda Motor Corp | Method of adjusting balance shaft backlash of engine |
| CN101349173A (en) * | 2008-09-03 | 2009-01-21 | 无锡开普机械有限公司 | Apparatus for adjusting gear backlash of engine |
| CN201258767Y (en) * | 2008-09-03 | 2009-06-17 | 无锡开普机械有限公司 | Gear backlash adjustment device for engine |
| CN101915296A (en) * | 2010-06-25 | 2010-12-15 | 重庆长安汽车股份有限公司 | Driven gear assembly of engine |
| CN103765048A (en) * | 2011-08-24 | 2014-04-30 | 卡特彼勒公司 | Improved gear backlash tool and method of using same |
| CN206889620U (en) * | 2017-07-13 | 2018-01-16 | 广西玉柴机器股份有限公司 | The gear structure of adjustable backlash |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236954A (en) * | 2018-11-09 | 2019-01-18 | 广西玉柴机器股份有限公司 | engine idle gear component |
| CN109236954B (en) * | 2018-11-09 | 2024-02-27 | 广西玉柴机器股份有限公司 | Idler gear component of engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170915 |
|
| RJ01 | Rejection of invention patent application after publication |