CN103448538A - Hydrostatic continuously variable transmission system of medium-power low-power garden tractor - Google Patents
Hydrostatic continuously variable transmission system of medium-power low-power garden tractor Download PDFInfo
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- CN103448538A CN103448538A CN2013103962988A CN201310396298A CN103448538A CN 103448538 A CN103448538 A CN 103448538A CN 2013103962988 A CN2013103962988 A CN 2013103962988A CN 201310396298 A CN201310396298 A CN 201310396298A CN 103448538 A CN103448538 A CN 103448538A
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Abstract
The invention discloses a hydrostatic continuously variable transmission system of a medium-power low-power garden tractor. The hydrostatic continuously variable transmission system of the medium-power low-power garden tractor comprises a power intake assembly, a hydrostatic continuously variable transmission assembly, a rear-drive transmission assembly, a power output transmission assembly, a front-drive transmission assembly, an over-bridge housing, a front cover, a middle power output housing, a rear axle housing and a transfer case housing. The over-bridge housing, the front cover and the middle power output housing are respectively connected with the rear axle housing by using fasteners; the transfer case housing and the over-bridge housing are connected by using the fasteners; the pump power intake assembly is arranged in the over-bridge housing; the hydrostatic continuously variable transmission assembly is arranged on the end face of the front cover; the rear-drive transmission assembly is arranged in the rear axle housing; the power output transmission assembly is arranged in the rear axle housing and the middle power output housing; the front-drive transmission assembly is arranged in the over-bridge housing and the transfer case housing; all shafts are spatially arranged. The transmission system is compact in structure, convenient to control and reliable in use.
Description
Technical field
The invention belongs to the trac. field, relate to the hydrostatic variable transmission of a kind of middle low power gardening type trac. system.
Background technology
At present, the multiple middle low power trac. of domestic production, great majority be take the agricultural tillage form as main, take into account the rapid transit operation.Its transmission system all adopts the mechanical type shift speed change, though can realize grade conversion that has between a plurality of gear speed, because each gear speed is fixed value, cause when being engaged in a certain operation form, can only choose and this kind of close speed of job requirements is carried out operation, be difficult to give play to optimum operating efficiency.Because mechanical type gearshift exists either large or small differentially, when keeping off rate conversion, each handles gear shifting force large, and gearshift reliability and ride comfort are limited, are difficult to meet the requirement of driver and crew to traveling comfort.In addition, for the consideration to the agricultural production operating mode, transmission system often design strength is high, and distance between shafts is large.From the appearance, whole transmission system oad is larger, can't realize small and exquisite, compact, gardening complete machine arrangement requirement flexibly structure.Simultaneously because weight is large, after the matching tractor complete machine, in driving process, to the squeezing action on ground and obvious to the destructiveness of soil surface, especially be not suitable for the operating environment of lawn gardening.
Summary of the invention
The object of the present invention is to provide a kind of compact conformation, good looking appearance, use reliable, supporting with hydrostatic toric transmission, can realize the hydrostatic variable transmission of the middle low power gardening type trac. system of stepless shift function.
The present invention can be achieved through the following technical solutions above-mentioned purpose: the hydrostatic variable transmission of middle low power gardening type trac. system comprises: pump power taking mouth assembly, hydrostatic continuous variable transmission assembly, rear-guard drive assembly, power output drive assembly, forerunner's drive assembly, gap bridge housing, protecgulum, medium power output housing, rear axle housing body, transfer case housing; Gap bridge housing, protecgulum, medium power output housing are connected with fastener respectively at rear axle housing body, transfer case housing is connected with fastener with the gap bridge housing, pump power taking mouth assembly is installed in the gap bridge housing, hydrostatic continuous variable transmission assembly is assemblied on the protecgulum end face, the rear-guard drive assembly is assemblied in rear axle housing body, power output drive assembly is assemblied in rear axle housing body and medium power output housing, forerunner's drive assembly is assemblied in gap bridge housing and transfer case housing, adopts the space arrangement form between each axle.
Clutch spindle in pump power taking mouth assembly, power taking axle by the bearing freely-supported on the gap bridge housing, power taking mouth driving gear by spline joint on clutch spindle, power taking mouth driven gear by spline joint on the power taking axle.
High to low gear imput shaft in the rear-guard drive assembly, the little axis of cone, diff component pass through the bearing freely-supported on the gap bridge housing, low gear driving gear, high gear driving gear by spline joint on the high to low gear imput shaft, forerunner's driving gear, low gear driven gear, high gear driven gear successively by spline joint on the little axis of cone, bevel gear wheel is connected with the diff component by fastener.
Input shaft gear in power output drive assembly passes through the bearing freely-supported on protecgulum, Clutch input shaft passes through the bearing freely-supported on protecgulum and clutch output shaft, clutch output shaft, the power output gear axle, rear power output gear axle, rear power output shaft by bearing successively freely-supported on rear axle housing body, power output idler shaft is fixed on the medium power output housing by resilient pin, the medium power output shaft passes through the bearing freely-supported on the medium power output housing, the power-transfer clutch input gear by spline joint on Clutch input shaft, power output clutch-brake by spline joint between power output clutch input shaft and power output clutch output shaft, clutch output gear by spline joint on clutch output shaft, power output idle pulley is exported on idler shaft at power by the bearing freely-supported, the medium power output gear by spline joint on the medium power output shaft, rear power output gear by spline joint on rear power output shaft.
Forerunner's axle in forerunner's drive assembly passes through the bearing freely-supported on protecgulum and rear axle housing body, driving shaft of transfer case and auxiliary gear box idler shaft pass through the bearing freely-supported on the gap bridge housing, the auxiliary gear box axle passes through the bearing freely-supported on transfer case housing, forerunner's gear by spline joint on forerunner's axle, the auxiliary gear box driving gear by spline joint on driving shaft of transfer case, the auxiliary gear box idle pulley by spline joint on the auxiliary gear box idler shaft, the auxiliary gear box gear by spline joint on the auxiliary gear box axle.
The present invention can reach following good effect after adopting technique scheme: after adopting the present invention, can realize two section stepless changes of trac., the tire that coordinates the specification that adapts, by the pedal to hydrostatic toric transmission, control, can meet the 8km/h that advances, any speed of a motor vehicle conversion in fall back 8km/h or 22 km/h that advance, two the section scopes of 22km/h that fall back, optimum speed coupling while having met operation, remove mechanical changeover simultaneously from and handled and clutch control, reduced the labour intensity of chaufeur.In addition, because the hydrostatic toric transmission of employing mechanism has substituted original main transformer speed transmission and shuttle-type gear transmission device, simplified greatly driving system.When meeting function and requirement of strength, realized small and exquisite, compact outward appearance and lighter architecture quality, reduced car weight, increased the alerting ability of car load.In electrohydraulic control, the output configuration of rear power, met the supporting requirement of multiple gardening power equipment, expanded envelop of function, met to greatest extent the requirement of horticulture-working, filled up the blank of domestic wheel-tire tractor in this field.Can meet the market demand in domestic and international gardens, gardening field, there is the very strong market competitiveness, can obtain abundant economic benefit and wide application prospect.
The accompanying drawing explanation
Fig. 1 is the hydrostatic variable transmission architecture of middle low power gardening type trac. of the present invention principle schematic.
The specific embodiment
Below in conjunction with accompanying drawing, invention is further described.As shown in Figure 1, the hydrostatic variable transmission of middle low power gardening type system comprises the present embodiment: pump power taking mouth assembly 1, hydrostatic continuous variable transmission assembly 2, rear-guard drive assembly 3, power output drive assembly 4, forerunner's drive assembly 5, gap bridge housing 6, protecgulum 7, medium power output housing 8, rear axle housing body 9, transfer case housing 10.Gap bridge housing 6, protecgulum 7, medium power output housing 8 are connected respectively at rear axle housing body 9 use fasteners, transfer case housing 10 is connected with gap bridge housing 6 use fasteners, pump power taking mouth assembly 1 is assemblied in gap bridge housing 6, hydrostatic continuous variable transmission assembly 2 is assemblied on protecgulum 7 end faces, rear-guard drive assembly 3 is assemblied in rear axle housing body 9, power output drive assembly 4 is assemblied in rear axle housing body 9 and medium power output housing 8, forerunner's drive assembly 5 is assemblied in gap bridge housing 6 and transfer case housing 10, adopts the space arrangement form between each axle.
Wherein the clutch spindle 11 in pump power taking mouth assembly 1, power taking axle 13 by the bearing freely-supported on gap bridge housing 6, power taking mouth driving gear 12 by spline joint on clutch spindle 11, power taking mouth driven gear 14 by spline joint on power taking axle 13.
High to low gear imput shaft 15 in rear-guard drive assembly 3, conelet axle 21, diff component 31 pass through the bearing freely-supported on gap bridge housing 6, low gear driving gear 18, high gear driving gear 20 by spline joint in high to low gear imput shaft 15, forerunner's driving gear 16, low gear driven gear 17, high gear driven gear 19 successively by spline joint on conelet axle 21, bevel gear wheel 30 is connected with diff component 31 by fastener.
Forerunner's axle 39 in forerunner's drive assembly 5 passes through the bearing freely-supported on protecgulum 7 and rear axle housing body 9, driving shaft of transfer case 45 and auxiliary gear box idler shaft 43 pass through the bearing freely-supported on gap bridge housing 6, auxiliary gear box axle 41 passes through the bearing freely-supported on transfer case housing 10, forerunner's gear 38 by spline joint on forerunner's axle 39, auxiliary gear box driving gear 44 by spline joint on driving shaft of transfer case 45, auxiliary gear box idle pulley 42 by spline joint on auxiliary gear box idler shaft 43, auxiliary gear box gear 40 by spline joint on auxiliary gear box axle 41.
Crawler body: power imports the hydrostatic variable transmission of this middle low power gardening type trac. system into through torsional vibration damper, by handling front and back control pedal and the angle of hydrostatic continuous variable transmission assembly 2, select forward or backward and the size of speed, articulate secondary speed change simultaneously, select I, a certain section in II two sections, power direct transfers via hydrostatic continuous variable transmission assembly 2 or oppositely and regulate the speed and again after speed change, reach the central transmission system by secondary speed change, divide again supplementary biography drive axle forwards, backwards, thereby realize the rear-guard 8km/h that advances, 8km/h or 22 km/h that advance fall back, any speed of a motor vehicle conversion in the 22km/h scope that falls back, power reaches front axle assy through forerunner's driving gear 16, forerunner's gear 38, forerunner's axle 39, driving shaft of transfer case 45, auxiliary gear box driving gear 44, auxiliary gear box idle pulley 42, auxiliary gear box gear 40, auxiliary gear box axle 41, thereby realizes the conversion on year-on-year basis of forerunner and rear-guard speed.
The power output: power imports the hydrostatic variable transmission of this middle low power gardening type trac. system into through torsional vibration damper, by electrohydraulic control, in conjunction with power, exports clutch-brake 34.Power is realized mid-power output via input shaft gear 35, power-transfer clutch input gear 37, power output clutch input shaft 36, clutch output shaft 32, clutch output gear 33, power output gear axle 26, power output idle pulley 24, medium power output gear 22, medium power output shaft 23 successively; Power is realized rear-mounted power output via power output gear axle 26, rear power output gear axle 27, rear power output gear 28, rear power output shaft 29 successively.
The power taking notch portion: power imports the hydrostatic variable transmission of this middle low power gardening type system into through torsional vibration damper, reach hydraulic gear pump through clutch spindle 11, power taking mouth driving gear 12, power taking mouth driven gear 14, power taking axle 13 successively, realize one group of hydraulic pressure output.
Claims (5)
1. the hydrostatic variable transmission of middle low power gardening type trac. system, comprising: pump power taking mouth assembly (1), hydrostatic continuous variable transmission assembly (2), rear-guard drive assembly (3), power output drive assembly (4), forerunner's drive assembly (5), gap bridge housing (6), protecgulum (7), medium power output housing (8), rear axle housing body (9), transfer case housing (10), it is characterized in that: gap bridge housing (6), protecgulum (7), medium power output housing (8) is connected with fastener respectively at rear axle housing body (9), transfer case housing (10) is connected with fastener with gap bridge housing (6), pump power taking mouth assembly (1) is installed in gap bridge housing (6), hydrostatic continuous variable transmission assembly (2) is assemblied on protecgulum (7) end face, rear-guard drive assembly (3) is assemblied in rear axle housing body (9), power output drive assembly (4) is assemblied in rear axle housing body (9) and medium power output housing (8), forerunner's drive assembly (5) is assemblied in gap bridge housing (6) and transfer case housing (10), adopt the space arrangement form between each axle.
2. the hydrostatic variable transmission of middle low power gardening type trac. according to claim 1 is, it is characterized in that: the clutch spindle (11) in pump power taking mouth assembly (1), power taking axle (13) pass through the bearing freely-supported on gap bridge housing (6), power taking mouth driving gear (12) is upper at clutch spindle (11) by spline joint, power taking mouth driven gear (14) by spline joint on power taking axle (13).
3. the hydrostatic variable transmission of middle low power gardening type trac. according to claim 1 is, it is characterized in that: the high to low gear imput shaft (15) in rear-guard drive assembly (3), the little axis of cone (21), diff component (31) passes through the bearing freely-supported on gap bridge housing (6), low gear driving gear (18), high gear driving gear (20) by spline joint on high to low gear imput shaft (15), forerunner's driving gear (16), low gear driven gear (17), high gear driven gear (19) successively by spline joint on the little axis of cone (21), bevel gear wheel (30) is connected with diff component (31) by fastener.
4. the hydrostatic variable transmission of middle low power gardening type trac. according to claim 1 is, it is characterized in that: the input shaft gear (35) in power output drive assembly (4) passes through the bearing freely-supported on protecgulum (7), Clutch input shaft (36) passes through the bearing freely-supported on protecgulum (7) and clutch output shaft (32), clutch output shaft (32), power output gear axle (26), rear power output gear axle (27), rear power output shaft (29) by bearing successively freely-supported on rear axle housing body (9), power output idler shaft (25) is fixed on medium power output housing (8) by resilient pin, medium power output shaft (23) passes through the bearing freely-supported on medium power output housing (8), power-transfer clutch input gear (37) by spline joint on Clutch input shaft (36), power output clutch-brake (34) by spline joint between power output clutch input shaft (36) and power output clutch output shaft (32), clutch output gear (33) by spline joint on clutch output shaft (32), power output idle pulley (24) is exported on idler shaft (25) at power by the bearing freely-supported, medium power output gear (22) by spline joint on medium power output shaft (23), rear power output gear (28) by spline joint on rear power output shaft (29).
5. the hydrostatic variable transmission of middle low power gardening type trac. according to claim 1 is, it is characterized in that: the forerunner's axle (39) in forerunner's drive assembly (5) passes through the bearing freely-supported on protecgulum (7) and rear axle housing body (9), driving shaft of transfer case (45) and auxiliary gear box idler shaft (43) pass through the bearing freely-supported on gap bridge housing (6), auxiliary gear box axle (41) passes through the bearing freely-supported on transfer case housing (10), forerunner's gear (38) by spline joint on forerunner's axle (39), auxiliary gear box driving gear (44) by spline joint on driving shaft of transfer case (45), auxiliary gear box idle pulley (42) by spline joint on auxiliary gear box idler shaft (43), auxiliary gear box gear (40) by spline joint on auxiliary gear box axle (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396298.8A CN103448538B (en) | 2013-09-04 | 2013-09-04 | The hydrostatic variable transmission system of middle low power gardening type trac. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396298.8A CN103448538B (en) | 2013-09-04 | 2013-09-04 | The hydrostatic variable transmission system of middle low power gardening type trac. |
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| Publication Number | Publication Date |
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| CN103448538A true CN103448538A (en) | 2013-12-18 |
| CN103448538B CN103448538B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310396298.8A Active CN103448538B (en) | 2013-09-04 | 2013-09-04 | The hydrostatic variable transmission system of middle low power gardening type trac. |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149615A (en) * | 2014-07-29 | 2014-11-19 | 洛阳拖拉机研究所有限公司 | Small and medium-sized power hydrostatic transmission gardening tractor |
| CN113733901A (en) * | 2021-08-30 | 2021-12-03 | 江苏悦达智能农业装备有限公司 | Tractor stepless speed change transmission device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606219Y (en) * | 2003-03-13 | 2004-03-10 | 桑恭 | Hydrostatic transmission of nonpolarized speed variable tractor |
| US20120225746A1 (en) * | 2010-09-14 | 2012-09-06 | Kubota Corporation | Transmission Apparatus for a Tractor |
| CN203449928U (en) * | 2013-09-04 | 2014-02-26 | 第一拖拉机股份有限公司 | Hydrostatic stepless variable speed drive system of gardening type tractor with medium and small power |
-
2013
- 2013-09-04 CN CN201310396298.8A patent/CN103448538B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606219Y (en) * | 2003-03-13 | 2004-03-10 | 桑恭 | Hydrostatic transmission of nonpolarized speed variable tractor |
| US20120225746A1 (en) * | 2010-09-14 | 2012-09-06 | Kubota Corporation | Transmission Apparatus for a Tractor |
| CN203449928U (en) * | 2013-09-04 | 2014-02-26 | 第一拖拉机股份有限公司 | Hydrostatic stepless variable speed drive system of gardening type tractor with medium and small power |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149615A (en) * | 2014-07-29 | 2014-11-19 | 洛阳拖拉机研究所有限公司 | Small and medium-sized power hydrostatic transmission gardening tractor |
| CN104149615B (en) * | 2014-07-29 | 2017-01-18 | 洛阳拖拉机研究所有限公司 | Small and medium-sized power hydrostatic transmission gardening tractor |
| CN113733901A (en) * | 2021-08-30 | 2021-12-03 | 江苏悦达智能农业装备有限公司 | Tractor stepless speed change transmission device |
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| CN103448538B (en) | 2015-08-12 |
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