CN103016688A - Easy-to-maintain coaxial type mechanical gearbox - Google Patents
Easy-to-maintain coaxial type mechanical gearbox Download PDFInfo
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- CN103016688A CN103016688A CN2012102623224A CN201210262322A CN103016688A CN 103016688 A CN103016688 A CN 103016688A CN 2012102623224 A CN2012102623224 A CN 2012102623224A CN 201210262322 A CN201210262322 A CN 201210262322A CN 103016688 A CN103016688 A CN 103016688A
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- input shaft
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Abstract
The invention relates to a gearbox, in particular to an easy-to-maintain coaxial type mechanical gearbox in the field of forklifts. The easy-to-maintain coaxial type mechanical gearbox has the following technical scheme that the easy-to-maintain coaxial type mechanical gearbox comprises a motive power input shaft and is characterized in that the motive power input shaft comprises a motive power input shaft bearing cover, a motive power input shaft sliding shaft, an input shaft gear sleeve and fixing screws, and the fixing screws can be used for detachably connecting the input shaft bearing cover, the input shaft gear sleeve and the motive power input shaft sliding shaft. The practical function of a speed raising and changing system can be improved, and the goals of great output torque, flexible and portable gear shifting, safety, reliability and compact structure are reached. Particularly, the input end structure is reformed, the controllable free extension and retraction of the input shaft can be realized, the problem of difficulty in clutch part replacement is solved, when quick-wear parts such as release bearings and friction plates need to be replaced, the fixing screws are loosened, the motive power input shaft sliding shaft can freely retract into the input shaft gear sleeve along an involute spline groove, the sufficient space is formed, and the quick-wear parts such as the release bearings and the friction plates can be conveniently dismounted.
Description
Technical field
The present invention relates to gearbox, relate in particular to the coaxial-type mechanical gear box for a kind of easy-maintaining in fork truck field.
Background technique
Current, the mechanical gear box ubiquity that the industrial lift truck custom of domestic 4T-5T is continued to use the defectives such as transmitting torque is little, gear shift is difficult, noise is large; Especially the replacing of the easily damaged partss such as release bearing, friction plate bothers in the clutch device of gearbox input end installation, maintenance difficult, motor and the gearbox of heaviness must be separated and can be taken off, this problem perplexs for a long time to be used and the maintenance man, has limited the development space of this type of fork truck practical application.
Summary of the invention
The purpose of invention: convenient for transmission is provided, the coaxial-type mechanical gear box of a kind of easy-maintaining that especially easily keeps in repair.
In order to reach as above purpose, 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, and comprising can be with the set screw of bearing cover, input shaft, input shaft tooth cover and the releasable connection of power input shaft sliding axle.
Further technological scheme of the present invention is: described input shaft tooth cover can be located chimeric with the power input shaft sliding axle.
Further technological scheme of the present invention is: there is involute involute splines slotted 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, described power input shaft bearing be stamped can positioning bearing interior step.
Further technological scheme of the present invention is: described power input shaft sliding axle one end has the motor connection part.
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 advance the commonly engaged gear engagement, often move back commonly engaged gear and be coaxially installed on the jack shaft that falls back, often advance commonly engaged gear and be coaxially installed on the jack shaft that advances, the described jack shaft that falls back is sub-packed in the both sides of pto＝power take-off with the jack shaft that advances, and jack shaft and gear driving pair corresponding more than pto＝power take-off has one group fall back; The jack shaft that advances has one group of above corresponding gear driving pair with pto＝power take-off.
Further technological scheme of the present invention is: the described two groups of corresponding gear driving pairs of jack shaft and pto＝power take-off that fall back, and 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 the gearshift assembly, its removable shift fork is stirred synchronizer gear sleeve and is changed 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 axial and location radially of two deep groove ball bearings.
Adopt as above the present invention of technological scheme, can promote the utility function of speed variator system, 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, can realize the controlled free-extension of input shaft, solve replacing clutch component hard problem, give strong technical support for this kind vehicle improves the market competitiveness.When the easily damaged partss such as needs replacing release bearing, friction plate, being about to set screw unclamps, the power input shaft sliding axle can form enough spaces along involute splines groove indentation input shaft tooth cover freely, changes easily the easily damaged partss such as release bearing, friction plate.
Description of drawings
In order to further specify the present invention, further describe below in conjunction with accompanying drawing:
Fig. 1 is the whole 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 advance 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. the driving gear of falling the second gear; 12. input shaft tooth cover; 13. one grade of gear; 14. intermediate gear; 15. three-range transmission; 16. fall one grade of gear; 17. fall intermediate gear; 18. rear bearing; 19. output shaft spline; 20. nut; 21. output shaft; 22. gearshift assembly; 23. power input shaft bearing cap; 24. power input shaft sliding axle; 25. set screw; 26. spline shaft; 27. motor connection part.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described, embodiment is not construed as limiting the invention:
In conjunction with Fig. 1-Fig. 3;
The present invention can directly be connected with engine clutch.Gearbox adopts powerful pair of intermediate shaft structure, and it is comprised 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 engagement (playing the idle pulley effect this moment) and often advance commonly engaged gear 6 and be meshed, with the power input jack shaft sub-assembly that advances, through advancing one grade of gear pair, speed change that the intermediate gear that advances is paid and the third gear gear pair that advances is meshed, realize advancing respectively one grade of speed ratio: 8.88, the second gear speed ratio advances: 5.8, the third gear of advancing speed ratio: 2.60 in like manner, input shaft gear is through meshing with the constant mesh gear that falls back, with the power input jack shaft sub-assembly that falls back, through falling back one grade of gear pair, the intermediate gear that falls back is paid the speed change that is meshed, realize falling back respectively one grade of speed ratio: 8.83, the second gear speed ratio falls back: 5.52.
Shifted realization be by the involute outer spline of output shaft and synchromesh gear hub internal spline connect and fixing after, jointly finished into three two speed changing functions by synchronizer copper conical ring and shifter collar.The endoporus of one grade of passive tooth assembly parts, the one grade of passive tooth assembly parts that falls back, the second gear passive tooth of advancing assembly parts, fall back second gear passive tooth assembly parts and the third gear passive tooth assembly parts that advances of advancing is equipped with respectively needle bearing, can freely realize the 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, has guaranteed again stable drive, the usefulness that noise is little.
Above demonstration and described 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; that describes in above-described embodiment and the 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 the claimed scope.
Claims (10)
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), and comprising can be with the set screw (25) of bearing cover, input shaft (23), input shaft tooth cover (12) and power input shaft sliding axle (24) releasable connection.
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 involute splines slotted 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) have can positioning bearing interior step.
5. 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 sliding axle (24) one ends have the motor connection part.
6. the coaxial-type mechanical gear box of a kind of easy-maintaining as claimed in claim 1, it is characterized in that: on the described input shaft tooth cover (12) input shaft gear is arranged, input shaft gear and often move back commonly engaged gear (5) engagement, often move back commonly engaged gear (5) and often advance commonly engaged gear (6) engagement, often move back commonly engaged gear (5) and be coaxially installed on the jack shaft that falls back, often advance commonly engaged gear (6) and be coaxially installed on the jack shaft that advances, the described jack shaft that falls back is sub-packed in the both sides of pto＝power take-off (21) with the jack shaft that advances, and jack shaft and gear driving pair corresponding more than pto＝power take-off (21) has one group fall back; The jack shaft that advances has one group of above corresponding gear driving pair with pto＝power take-off (21).
7. the coaxial-type mechanical gear box of a kind of easy-maintaining as claimed in claim 6 is characterized in that: described (21) the two groups of corresponding gear driving pairs of jack shaft and pto＝power take-off that fall back, and 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.
8. the coaxial-type mechanical gear box of a kind of easy-maintaining as claimed in claim 6, it is characterized in that: the gear of described gear pair is helical gear.
9. 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 is stirred synchronizer gear sleeve and is changed transmission.
10. 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) be two deep groove ball bearings axially and location radially.
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 true CN103016688A (en) | 2013-04-03 |
| CN103016688B CN103016688B (en) | 2016-04-06 |
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| 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 |
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| CN (1) | CN103016688B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605164A (en) * | 2016-02-03 | 2016-05-25 | 安徽好运机械有限公司 | Mechanical gearbox for forklift |
Citations (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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE502418C2 (en) * | 1993-07-07 | 1995-10-16 | Volvo Ab | Motor vehicle gearbox |
| SE506047C2 (en) * | 1996-02-08 | 1997-11-03 | Volvo Ab | Motor vehicle gearbox |
| US8479604B2 (en) * | 2007-02-05 | 2013-07-09 | Eaton Corporation | Powertrain for an automotive vehicle with multiple-ratio gearing and a dual power input clutch |
| CN101498352A (en) * | 2008-12-16 | 2009-08-05 | 赣州五环机器有限责任公司 | Forklift speed variator |
| 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 |
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2012
- 2012-07-27 CN CN201210262322.4A patent/CN103016688B/en active Active
Patent Citations (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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605164A (en) * | 2016-02-03 | 2016-05-25 | 安徽好运机械有限公司 | Mechanical gearbox for forklift |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103016688B (en) | 2016-04-06 |
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