CN202251787U - Speed changing box for tractor - Google Patents
Speed changing box for tractor Download PDFInfo
- Publication number
- CN202251787U CN202251787U CN2011203738654U CN201120373865U CN202251787U CN 202251787 U CN202251787 U CN 202251787U CN 2011203738654 U CN2011203738654 U CN 2011203738654U CN 201120373865 U CN201120373865 U CN 201120373865U CN 202251787 U CN202251787 U CN 202251787U
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- China
- Prior art keywords
- pto
- input shaft
- output shaft
- assembly
- gear
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a speed changing box for a tractor and relates to agricultural machinery. A power take-off (PTO) includes a direct output PTO assembly and a speed reduction output PTO assembly. The direct output PTO assembly comprises an input shaft and a flange plate II, wherein the input shaft is the same as a crank shaft of an engine, the flange plate II and the input shaft are installed on an auxiliary box in coaxial mode, a hydraulic pump is arranged on the flange plate II, and an input shaft of the hydraulic pump is connected with the input shaft through a spline hole to obtain power from the engine. The speed reduction PTO assembly comprises a PTO output shaft and a flange plate I, wherein the PTO output shaft is arranged on the auxiliary box and connected with the input shaft through a gear transmission pair to obtain power from the input shaft, a gear shift mechanism is arranged between the gear transmission pair and the PTO output shaft, a spline is arranged at the outer end portion, a flange plate I is connected with the PTO output shaft through the spline, and the flange plate I is connected with a terminal transmission box at the rear end of the tractor through the transmission shaft to provide power for agricultural machinery by changing speed.
Description
Technical field
The utility model relates to a kind of farm machinery, is specifically related to the combiner gearbox of using on a kind of four-wheel drive wheeled tractor.
Background technique
The gearbox of the fabricated structure of using on the at present domestic traditional big-and-middle-sized four-wheel drive tractor; Be provided with running gear driving mechanism, back axle differential, central transmission and arrestment mechanism, PTO system driving mechanism and Effector thereof in its gearbox; This gearbox is maximized; Weight and manufacture cost increase, and make complicatedly, and maintenance operation etc. becomes numerous and diverse.Retrain the development of tractor, also influenced its application area.Have only one group of PTO system driving mechanism in the gearbox, directly do not get into the final gearbox of tractor rear end, again through for agricultural machinery and implement power being provided after the speed change through slowing down.Even the gearshift reducing gear is arranged, its gearshift driven unit uses manually, and inconvenient operation is also dangerous.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of gear box of tractor, and two groups of direct output PTO assembly and reduction of speed output PTO assemblies are arranged in the gearbox, and wherein reduction of speed output PTO assembly uses pneumatic element to drive.
The utility model is realized through following technological scheme: a kind of gear box of tractor; Its casing is combined by main tank and odd-side; Described main tank is connected with motor through clutch housing; Clutch assembly is housed in the clutch housing, main tank input shaft assembly, main tank output shaft assembly is housed in the main tank, the retaining idler shaft reverses gear.Described odd-side is equipped with odd-side input shaft assembly, back axle output shaft assembly, propons output shaft assembly and PTO output assembly; It is characterized in that: described PTO output assembly has direct output PTO assembly and reduction of speed to export two groups of PTO assemblies.Described directly output PTO assembly, it comprises input shaft and flange plate II.Described input shaft and engine crankshaft are the same axis, and input shaft is installed on the odd-side through bearing I oil-impregnated bearing, and the end of input shaft makes splined hole.Described flange plate II and input shaft concentric are installed on the odd-side, and oil hydraulic pump is installed on the flange plate II, and the input shaft of oil hydraulic pump is connected with input shaft through splined hole, and obtains power from motor.
Described reduction of speed output PTO assembly, it comprises: PTO output shaft and flange plate I.Described PTO output shaft is installed on the odd-side through the bearing II, and bearing II outer end is provided with bearing gland.Between described bearing gland and the PTO output shaft reinforced seal ring is set.The PTO output shaft is connected with input shaft through gear driving pair, and obtains power from input shaft.Between described gear driving pair and the PTO output shaft gearshift retaining device is set.PTO output shaft outer end makes spline, and described flange plate I is connected with PTO output shaft (16) through spline, and with pressing plate and bolt the flange plate I is fixed on the PTO output shaft end.Between described pressing plate and the flange plate I O RunddichtringO is set.The flange plate I is through the final gearbox of transmission shaft connection tractor rear end, again through for agricultural machinery and implement power being provided after the speed change.
Described gear driving pair is made up of intermeshing driving gear and driven gear.Described driving gear is connected with input shaft through spline, and described driven gear is installed on the PTO output shaft through needle bearing, and the outside of driven gear makes spline.Described gearshift retaining device, it comprises: toothholder, tooth cover, gearshift retaining shift fork and gearshift retaining driven unit.The internal spline of described toothholder is connected with the external splines of PTO output shaft, and the external splines of toothholder is connected with the internal spline of tooth cover.Described tooth cover is connected with gearshift retaining driven unit through gearshift retaining shift fork.When the tooth cover was positioned at the gear of putting into gear and puts, the spline on its internal spline and toothholder and the driven gear meshed simultaneously, and the PTO output shaft gains impetus.When the tooth cover was positioned at the off-gear gear and puts, its internal spline only was connected with toothholder.
Good effect of the present invention is:
1, structural configuration is compact, complete machine shorten length, the flexibility that improves complete machine.
2, structure is simple relatively, and low cost of manufacture is independently detachable, and maintenance is good.
3, there is a hydraulic pressure installation interface at the odd-side rear portion, is beneficial to the using scope that enlarges tractor, meets international tractor technology trends.
4, reduction of speed output PTO assembly directly gets into final gearbox, makes back axle and final gearbox independent, is beneficial to and makes full use of social resources.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Fig. 1 is the utility model profile plan view.
Fig. 2 is the right diagrammatic sketch of Fig. 1.
Fig. 3 is the A--A rotation profile of Fig. 2.
Among the figure: 1, clutch housing, 2, main tank, 3, reduction of speed output PTO assembly, 3-1, bearing gland, 3-2, reinforced seal ring, 3-3, flange plate I; 3-4, pressing plate, 3-5, O RunddichtringO, 4, odd-side, 5, directly export the PTO assembly, 5-1, flange plate II, 6, the back axle Out let; 7, propons Out let, 8, the bearing I, 9, input shaft gear, 10, input shaft, 10-1, splined shaft, 10-2, splined hole; 11, oil-impregnated bearing, 12, inner spline housing, 13, driving gear, 14, driven gear, 14-1, spline, 15, the bearing II; 16, PTO output shaft, 17, needle bearing, 18, toothholder, 19, the tooth cover, 20, gearshift retaining shift fork; 21, gearshift driven unit, 21-1, cylinder body, 21-2, piston rod, 21-3, plug screw assembly, 21-4, resilient key; 21-5, air inlet/outlet I, 21-6, piston, 21-7, air inlet/outlet II, 21-8, cylinder cap, 21-9, stopping nut assembly.
Embodiment
Like Fig. 1,2, shown in 3: a kind of gear box of tractor, its casing is by main tank 2) and odd-side 4 combine, described main tank 2 is connected with motor through clutch housing 1, in the clutch housing 1 clutch assembly is housed.Main tank input shaft assembly, main tank output shaft assembly are housed in the main tank 1, idler shaft reverses gear; Described odd-side 4 is equipped with odd-side input shaft assembly, back axle output shaft assembly, propons output shaft assembly and PTO output assembly.It is characterized in that: described PTO output assembly has 3 liang of groups of direct output PTO assembly 5 and reduction of speed output PTO assembly.Described directly output PTO assembly 5, it comprises input shaft 10 and flange plate II 5-1.Described input shaft 10 is a same axis with engine crankshaft, and input shaft 10 is installed on the odd-side 4 through bearing I 8 oil-impregnated bearings 11, and the end of input shaft 10 makes splined hole 10-2.Described flange plate II 5-1 and input shaft 10 concentrics are installed on the odd-side 4, and oil hydraulic pump is installed on the flange plate II 5-1, and the input shaft of oil hydraulic pump is connected with input shaft 10 through splined hole 10-2, and obtains power from motor.
Described reduction of speed output PTO assembly 3, it comprises: PTO output shaft 16 and flange plate I 3-3.Described PTO output shaft 16 is installed on the odd-side 4 through bearing II 15, and bearing II 15 outer ends are provided with bearing gland 3-1, and reinforced seal ring 3-2 is set between described bearing gland 3-1 and the PTO output shaft 16.PTO output shaft 16 is connected with input shaft 10 through gear driving pair, and obtains power from input shaft 10.Between described gear driving pair and the PTO output shaft 16 gearshift is set.PTO output shaft 16 outer ends make spline, and described flange plate I 3-3 is connected with PTO output shaft 16 through spline, and with pressing plate 3-4 and bolt flange plate I 3-3 is fixed on PTO output shaft 16 ends.Between described pressing plate 3-4 and the flange plate I 3-3 O RunddichtringO 3-5 is set.Flange plate I 3-3 is through the final gearbox of transmission shaft connection tractor rear end, again through for agricultural machinery and implement power being provided after the speed change.
Described gear driving pair is made up of with driven gear 14 intermeshing driving gear 13.Described driving gear 13 is connected with input shaft 10 through spline, and described driven gear 14 is installed on the PTO output shaft 16 through needle bearing 17, and the outside of driven gear 14 makes spline 14-1.Described gearshift, it comprises: toothholder 18, tooth cover 19, selector fork 20 and gearshift driven unit 21.The internal spline of described toothholder 18 is connected with the external splines of PTO output shaft 16, and the external splines of toothholder 18 is connected with the internal spline of tooth cover 19.Described tooth cover 19 is connected with gearshift driven unit 21 through selector fork 20.When tooth cover 19 is positioned at when putting into gear the position, its internal spline meshes with spline 14-1 on toothholder 18 and the driven gear 14 simultaneously, and PTO output shaft 16 gains impetus.When tooth cover 19 was positioned at the off-gear position, its internal spline only was connected with toothholder 18.
Claims (2)
1. gear box of tractor, its casing is combined by main tank (2) and odd-side (4), and described main tank (2) is connected with motor through clutch housing (1), and clutch housing is equipped with clutch assembly in (1); Main tank input shaft assembly, main tank output shaft assembly are housed in the main tank (1), idler shaft reverses gear; Described odd-side (4) is equipped with odd-side input shaft assembly, back axle output shaft assembly, propons output shaft assembly and PTO output assembly; It is characterized in that: described PTO output assembly has direct output PTO assembly (5) and reduction of speed to export (3) two groups of PTO assemblies; Described directly output PTO assembly (5), it comprises input shaft (10) and flange plate II (5-1); Described input shaft (10) is a same axis with engine crankshaft, and input shaft (10) is installed on the odd-side (4) through bearing I (8) and oil-impregnated bearing (11), and the end of input shaft (10) makes splined hole (10-2); Described flange plate II (5-1) is installed on the odd-side (4) with input shaft (10) concentric; Oil hydraulic pump is installed on the flange plate II (5-1); The input shaft of oil hydraulic pump is connected with input shaft (10) through splined hole (10-2), and obtains power from motor;
Described reduction of speed output PTO assembly (3), it comprises: PTO output shaft (16) and flange plate I (3-3); Described PTO output shaft (16) is installed on the odd-side (4) through bearing II (15), and bearing II (15) outer end is provided with bearing gland (3-1); Between described bearing gland (3-1) and the PTO output shaft (16) reinforced seal ring (3-2) is set; PTO output shaft (16) is connected with input shaft (10) through gear driving pair, and obtains power from input shaft (10); Between described gear driving pair and the PTO output shaft (16) gearshift is set; PTO output shaft (16) outer end makes spline, and described flange plate I (3-3) is connected with PTO output shaft (16) through spline, and with pressing plate (3-4) and bolt flange plate I (3-3) is fixed on PTO output shaft (16) end; Between described pressing plate (3-4) and the flange plate I (3-3) O RunddichtringO (3-5) is set; Flange plate I (3-3) is through the final gearbox of transmission shaft connection tractor rear end, again through for agricultural machinery and implement power being provided after the speed change.
2. gear box of tractor according to claim 1 is characterized in that: described gear driving pair is made up of intermeshing driving gear (13) and driven gear (14); Described driving gear (13) is connected with input shaft (10) through spline, and described driven gear (14) is installed on the PTO output shaft (16) through needle bearing (17), and the outside of driven gear (14) makes spline (14-1); Described gearshift, it comprises: toothholder (18), tooth cover (19), selector fork (20) and gearshift driven unit (21); The internal spline of described toothholder (18) is connected with the external splines of PTO output shaft (16), and the external splines of toothholder (18) is connected with the internal spline of tooth cover (19); Described tooth cover (19) is connected with gearshift driven unit (21) through selector fork (20); When tooth cover (19) is positioned at when putting into gear the position, the spline (14-1) on its internal spline and toothholder (18) and the driven gear (14) meshes simultaneously, and PTO output shaft (16) gains impetus; When tooth cover (19) was positioned at the off-gear position, its internal spline only was connected with toothholder (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203738654U CN202251787U (en) | 2011-10-08 | 2011-10-08 | Speed changing box for tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203738654U CN202251787U (en) | 2011-10-08 | 2011-10-08 | Speed changing box for tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202251787U true CN202251787U (en) | 2012-05-30 |
Family
ID=46113032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203738654U Withdrawn - After Issue CN202251787U (en) | 2011-10-08 | 2011-10-08 | Speed changing box for tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202251787U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312973A (en) * | 2011-10-08 | 2012-01-11 | 徐州凯尔机械有限公司 | Gear box of tractor |
| CN103444291A (en) * | 2013-08-19 | 2013-12-18 | 潍坊润达机械有限公司 | Four-wheel farmland operating machine employing walking tractor gearbox |
| CN103723037A (en) * | 2013-12-18 | 2014-04-16 | 刘光兵 | Articulated tractor head and tractor with same |
| CN103775570A (en) * | 2012-10-23 | 2014-05-07 | 韦瑞林 | Combined type speed changing box |
| CN108162752A (en) * | 2017-12-05 | 2018-06-15 | 安徽农业大学 | A kind of double gear variable-ratio front-mounted power output devices of tractor |
-
2011
- 2011-10-08 CN CN2011203738654U patent/CN202251787U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312973A (en) * | 2011-10-08 | 2012-01-11 | 徐州凯尔机械有限公司 | Gear box of tractor |
| CN102312973B (en) * | 2011-10-08 | 2013-04-24 | 徐州凯尔机械有限公司 | Gear box of tractor |
| CN103775570A (en) * | 2012-10-23 | 2014-05-07 | 韦瑞林 | Combined type speed changing box |
| CN103775570B (en) * | 2012-10-23 | 2016-06-22 | 韦瑞林 | A kind of combiner gearbox |
| CN103444291A (en) * | 2013-08-19 | 2013-12-18 | 潍坊润达机械有限公司 | Four-wheel farmland operating machine employing walking tractor gearbox |
| CN103444291B (en) * | 2013-08-19 | 2016-03-02 | 潍坊润达机械有限公司 | A kind of four-wheel farm working machinery adopting speed changing box for walking tractor |
| CN103723037A (en) * | 2013-12-18 | 2014-04-16 | 刘光兵 | Articulated tractor head and tractor with same |
| CN108162752A (en) * | 2017-12-05 | 2018-06-15 | 安徽农业大学 | A kind of double gear variable-ratio front-mounted power output devices of tractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20130424 |
|
| RGAV | Abandon patent right to avoid regrant |