CN103016688B - A kind of coaxial-type mechanical gear box of easy-maintaining - Google Patents
A kind of coaxial-type mechanical gear box of easy-maintaining Download PDFInfo
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- CN103016688B CN103016688B CN201210262322.4A CN201210262322A CN103016688B CN 103016688 B CN103016688 B CN 103016688B CN 201210262322 A CN201210262322 A CN 201210262322A CN 103016688 B CN103016688 B CN 103016688B
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- input shaft
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- power input
- coaxial
- maintaining
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Abstract
The present invention relates to gearbox, particularly relate to the coaxial-type mechanical gear box of a kind of easy-maintaining for fork truck field.Technological scheme is as follows: comprise power input shaft, it is characterized in that: power input shaft comprises power input shaft bearing cap, power input shaft sliding axle and input shaft tooth cover, comprising can by bearing cover, input shaft, input shaft tooth cover and the set screw of power input shaft sliding axle releasable connection.The utility function of speed variator system can be promoted, reach that output torque is large, gear shift is light, safe and reliable flexibly, and compact structure.Especially by the reform to input end structure, the controlled free-extension of input shaft can be realized, solve the problem changing clutch component difficulty, when the easily damaged parts such as release bearing, friction plate changed by needs, unclamp by set screw, power input shaft sliding axle along involute splines groove indentation input shaft tooth cover freely, can be formed enough spaces, changes the easily damaged parts such as release bearing, friction plate easily.
Description
Technical field
The present invention relates to gearbox, particularly relate to the coaxial-type mechanical gear box of a kind of easy-maintaining for fork truck field.
Background technique
Current, the mechanical gear box ubiquity that the industrial lift truck of domestic 4T-5T is accustomed to continuing to use the defects such as transmitting torque is little, gear shift is difficult, noise is large; Especially transmission input install clutch device in the easily damaged parts such as release bearing, friction plate replacing trouble, maintenance difficult, the motor of heaviness and gearbox must be separated and can be taken off, this problem long-standing problem using and satisfied personnel, limit the development space of this type of fork truck practical application.
Summary of the invention
The object of invention: in order to provide transmission convenient, the coaxial-type mechanical gear box of a kind of easy-maintaining of especially easily maintenance.
In order to reach as above object, the present invention takes following technological scheme: comprise power input shaft, it is characterized in that: power input shaft comprises power input shaft bearing cap, power input shaft sliding axle and input shaft tooth cover, comprising can by bearing cover, input shaft, input shaft tooth cover and the set screw of power input shaft sliding axle releasable connection.
Further technological scheme of the present invention is: described input shaft tooth cover can be located chimeric with power input shaft sliding axle.
Further technological scheme of the present invention is: there is involute splines elongated hole described input shaft tooth cover inside, and described power input shaft sliding axle is an involute splined shaft.
Further technological scheme of the present invention is: described power input shaft bearing cap is coated at input shaft tooth cover, and described power input shaft bearing is stamped can the interior step of positioning bearing.
Further technological scheme of the present invention is: there is motor connection part described power input shaft sliding axle one end.
Further technological scheme of the present invention is: described input shaft tooth has put input shaft gear, input shaft gear and often move back commonly engaged gear engagement, often move back commonly engaged gear and often enter commonly engaged gear engagement, often move back commonly engaged gear and be coaxially installed on the jack shaft that falls back, often enter commonly engaged gear and be coaxially installed on advance jack shaft, described fall back jack shaft and advance jack shaft are sub-packed in the both sides of pto＝power take-off, and fall back jack shaft and pto＝power take-off have more than one group corresponding gear driving pair; Advance jack shaft and pto＝power take-off have more than one group corresponding gear driving pair.
Further technological scheme of the present invention is: described in fall back the jack shaft gear driving pair corresponding with pto＝power take-off two groups, its velocity ratio is respectively 8.83 and 5.52; Described advance jack shaft and pto＝power take-off have three groups of corresponding gear driving pairs, and its velocity ratio is respectively 8.88,5.8 and 2.6.
Further technological scheme of the present invention is: the gear of described gear pair is helical gear.
Further technological scheme of the present invention is: also comprise gearshift assembly, and its removable shift fork stirs synchronizer gear sleeve to change transmission.
Further technological scheme of the present invention is: the bearing of the interior step location of described power input shaft bearing cap is the axis of two deep groove ball bearings and the location of radial direction.
Adopt the present invention of as above technological scheme, the utility function of speed variator system can be promoted, reach that output torque is large, gear shift is light, safe and reliable flexibly, and compact structure.Especially by the reform to input end structure, the controlled free-extension of input shaft can be realized, solve the problem changing clutch component difficulty, give strong technical support for this kind of vehicle improves the market competitiveness.When the easily damaged parts such as release bearing, friction plate changed by needs, unclamp by set screw, power input shaft sliding axle along involute splines groove indentation input shaft tooth cover freely, can be formed enough spaces, changes the easily damaged parts such as release bearing, friction plate easily.
Accompanying drawing explanation
In order to further illustrate the present invention, be described further below in conjunction with accompanying drawing:
Fig. 1 is the overall drive mechanism schematic diagram of invention;
Fig. 2 is the external structure schematic diagram of invention;
Fig. 3 is the structural representation of input shaft;
Wherein: 1. bearing; 2. engine flywheel; 3. power input shaft; 4. fore bearing; 5. often move back commonly engaged gear; 6. often enter commonly engaged gear; 7. one grade of driving gear; 8. second gear driving gear; 9. third speed drive gear; 10. fall one grade of driving gear; 11. driving gears of falling second gear; 12. input shaft tooth covers; 13. 1 grades of gears; 14. intermediate gears; 15. three-range transmissions; 16. fall one grade of gear; 17. fall intermediate gear; 18. rear bearings; 19. output shaft splines; 20. nuts; 21. output shafts; 22. gearshift assemblies; 23. power input shaft bearing caps; 24. power input shaft sliding axles; 25. set screws; 26. spline shafts; 27. motor connection parts.
Embodiment
Be described embodiments of the invention below in conjunction with accompanying drawing, embodiment is not construed as limiting the invention:
Composition graphs 1-Fig. 3;
The present invention directly can be connected with engine clutch.Gearbox adopts powerful pair of intermediate shaft structure, and it is made up of power input shaft 3, the jack shaft that advances, the four large sub-assemblys such as jack shaft and output shaft 21 that fall back.Input shaft gear through with often move back commonly engaged gear 5 and engage (now playing idle pulley effect) and often enter commonly engaged gear 6 and be meshed, power is inputted advance jack shaft sub-assembly, through advance one grade of gear pair, secondary and the advance third gear gear pair of advance intermediate gear is meshed speed change, realize advance one grade of speed ratio respectively: 8.88, advance second gear speed ratio: 5.8, advance third gear speed ratio: 2.60 in like manner, input shaft gear is through engaging with the constant mesh gear that falls back, fall back power input jack shaft sub-assembly, through falling back one grade of gear pair, reverse second speed gear gear pair is meshed speed change, realize falling back one grade of speed ratio respectively: 8.83, reverse second speed gear speed ratio: 5.52.
Shifted realization to be connect by the involute outer spline of output shaft and synchromesh gear hub internal spline and after fixing, by synchronizer copper conical ring and shifter collar jointly complete to fall into three two speed changing function.The endoporus of one grade of passive tooth assembly parts, the one grade of passive tooth assembly parts that falls back, advance second gear passive tooth assembly parts, reverse second speed gear passive tooth assembly parts and advance third gear passive tooth assembly parts of advancing is equipped with needle bearing respectively, can freely realize transfer effect; Synchronizer shift light and flexible and safe and reliable.The driving gear of special gear box all adopts the helical gear of large pressure angle profile of tooth and angle correcting, obviously increases output torque, in turn ensure that the usefulness that stable drive, noise are little.
More than show and describe basic principle of the present invention, major character and advantage of the present invention.Those skilled in the art should understand the present invention and not be restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in claimed scope.
Claims (9)
1. the coaxial-type mechanical gear box of an easy-maintaining, comprise power input shaft (3), it is characterized in that: power input shaft (3) comprises power input shaft bearing cap (23), power input shaft sliding axle (24) and input shaft tooth cover (12), comprising can by the set screw (25) of bearing cover, input shaft (23), input shaft tooth cover (12) and power input shaft sliding axle (24) releasable connection;
Described input shaft tooth cover (12) there is input shaft gear, input shaft gear and often move back commonly engaged gear (5) engagement, often move back commonly engaged gear (5) and often enter commonly engaged gear (6) engagement, often move back commonly engaged gear (5) and be coaxially installed on the jack shaft that falls back, often enter commonly engaged gear (6) and be coaxially installed on advance jack shaft, described fall back jack shaft and advance jack shaft are sub-packed in the both sides of pto＝power take-off (21), and fall back jack shaft and pto＝power take-off (21) have more than one group corresponding gear driving pair; Advance jack shaft and pto＝power take-off (21) have more than one group corresponding gear driving pair.
2. the coaxial-type mechanical gear box of a kind of easy-maintaining as claimed in claim 1, is characterized in that: described input shaft tooth cover (12) can be located chimeric with power input shaft sliding axle (24).
3. the coaxial-type mechanical gear box of a kind of easy-maintaining as claimed in claim 2, it is characterized in that: there is involute splines elongated hole described input shaft tooth cover (12) inside, and described power input shaft sliding axle (24) is an involute splined shaft.
4. the coaxial-type mechanical gear box of a kind of easy-maintaining as claimed in claim 1, it is characterized in that: described power input shaft bearing cap (23) is coated at input shaft tooth cover (12), described power input shaft bearing cap (23) has can the interior step of positioning bearing.
5. the coaxial-type mechanical gear box of a kind of easy-maintaining as claimed in claim 1, is characterized in that: there is motor connection part described power input shaft sliding axle (24) one end.
6. the coaxial-type mechanical gear box of a kind of easy-maintaining as claimed in claim 1, is characterized in that: described in fall back jack shaft and pto＝power take-off (21) two groups of corresponding gear driving pairs, its velocity ratio is respectively 8.83 and 5.52; Described advance jack shaft and pto＝power take-off (21) have three groups of corresponding gear driving pairs, and its velocity ratio is respectively 8.88,5.8 and 2.6.
7. the coaxial-type mechanical gear box of a kind of easy-maintaining as claimed in claim 1, is characterized in that: the gear of described gear driving pair is helical gear.
8. the coaxial-type mechanical gear box of a kind of easy-maintaining as claimed in claim 1, is characterized in that: also comprise gearshift assembly (22), its removable shift fork stirs synchronizer gear sleeve to change transmission.
9. the coaxial-type mechanical gear box of a kind of easy-maintaining as claimed in claim 4, is characterized in that: the bearing of the interior step location of described power input shaft bearing cap (23) is the axis of two deep groove ball bearings and the location of radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210262322.4A CN103016688B (en) | 2012-07-27 | 2012-07-27 | A kind of coaxial-type mechanical gear box of easy-maintaining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210262322.4A CN103016688B (en) | 2012-07-27 | 2012-07-27 | A kind of coaxial-type mechanical gear box of easy-maintaining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016688A CN103016688A (en) | 2013-04-03 |
| CN103016688B true CN103016688B (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210262322.4A Active CN103016688B (en) | 2012-07-27 | 2012-07-27 | A kind of coaxial-type mechanical gear box of easy-maintaining |
Country Status (1)
| Country | Link |
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| CN (1) | CN103016688B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605164B (en) * | 2016-02-03 | 2020-03-31 | 安徽天乐传动技术发展有限公司 | Mechanical gearbox of forklift |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5517874A (en) * | 1993-07-07 | 1996-05-21 | Ab Volvo | Motor vehicle gearbox with brake means in countershaft and unequal gear teeth on gears of dual countershafts |
| US6021684A (en) * | 1996-02-08 | 2000-02-08 | Ab Volvo | Motor vehicle gearbox |
| CN101498352A (en) * | 2008-12-16 | 2009-08-05 | 赣州五环机器有限责任公司 | Forklift speed variator |
| EP2273153A2 (en) * | 2009-07-10 | 2011-01-12 | Eaton Corporation | Multiple-ratio dual clutch power transmission for vehicle |
| CN201723660U (en) * | 2010-05-28 | 2011-01-26 | 上海欧弈控制技术有限公司 | Tractor gear box and wheel tractor with tractor gear box |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825156A (en) * | 2010-05-11 | 2010-09-08 | 安徽天瑞精密汽车零部件有限公司 | Special gearbox for agricultural forklift |
-
2012
- 2012-07-27 CN CN201210262322.4A patent/CN103016688B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5517874A (en) * | 1993-07-07 | 1996-05-21 | Ab Volvo | Motor vehicle gearbox with brake means in countershaft and unequal gear teeth on gears of dual countershafts |
| US6021684A (en) * | 1996-02-08 | 2000-02-08 | Ab Volvo | Motor vehicle gearbox |
| CN101498352A (en) * | 2008-12-16 | 2009-08-05 | 赣州五环机器有限责任公司 | Forklift speed variator |
| EP2273153A2 (en) * | 2009-07-10 | 2011-01-12 | Eaton Corporation | Multiple-ratio dual clutch power transmission for vehicle |
| CN201723660U (en) * | 2010-05-28 | 2011-01-26 | 上海欧弈控制技术有限公司 | Tractor gear box and wheel tractor with tractor gear box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103016688A (en) | 2013-04-03 |
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