CN204443169U - The stepless speed change device of small harvester - Google Patents
The stepless speed change device of small harvester Download PDFInfo
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- CN204443169U CN204443169U CN201520106698.5U CN201520106698U CN204443169U CN 204443169 U CN204443169 U CN 204443169U CN 201520106698 U CN201520106698 U CN 201520106698U CN 204443169 U CN204443169 U CN 204443169U
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- driving wheel
- wheel
- stepless speed
- infinitely variable
- variable speeds
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Abstract
The utility model belongs to agricultural machinery speed change gear field, in particular to a kind of stepless speed change device of small harvester, comprise infinitely variable speeds driving wheel and stepless speed changing passive wheel, infinitely variable speeds driving wheel is arranged on wheel carrier, connected by cvt belt between infinitely variable speeds driving wheel and stepless speed changing passive wheel, infinitely variable speeds driving wheel connects hydraulic circuit, and hydraulic circuit connects gear lever.Simple and reasonable, easily realize, convenient operation, the infinitely variable speeds driving wheel of setting and stepless speed changing passive wheel rational in infrastructure, by the change of bel-drivenn gearratio, realize the change of the rotating speed of moving gear box power shaft.
Description
Technical field
The utility model relates to a kind of stepless speed change device of small harvester, belongs to agricultural machinery speed change gear field.
Background technology
Small harvester is specially adapted to the Small burden operation such as hillside, hills because of features such as its vehicle are little, manoeuvrable, radius of turn are little.But due to the landform operation such as hillside, hills, grain header action need speed-change and gearshift frequently.Walking speed change gear common in such landform relies on clutch shift speed change, and the process grain header of gear shift is in hillside fields, brings certain danger to harvesting.And the stepless speed change device that present stage large-scale harvester is generally applied, due to the restriction in its arrangement works space, on small harvester, application is seldom at present.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of compact conformation, working space little, can improve the stepless speed change device of the small harvester of grain header operating flexibility and safety.
The stepless speed change device of small harvester described in the utility model, comprise infinitely variable speeds driving wheel and stepless speed changing passive wheel, infinitely variable speeds driving wheel is arranged on wheel carrier, connected by cvt belt between infinitely variable speeds driving wheel and stepless speed changing passive wheel, infinitely variable speeds driving wheel connects hydraulic circuit, and hydraulic circuit connects gear lever.
The Main Function of infinitely variable speeds driving wheel is the output of connecting power device, and by power transmission to stepless speed changing passive wheel, stepless speed changing passive wheel connects walking gearbox dynamic power shaft, thus drive grain header walking, infinitely variable speeds driving wheel is by the control realization speed change of hydraulic pressure, gear lever hydraulic control oil circuit, easy to operate, easily realize; Installing hole on wheel carrier is elongated hole, and adjustment screw mandrel is arranged at bottom, for adjusting tensioning stepless change wheel.
Described infinitely variable speeds driving wheel comprises price fixing and Moving plate, and price fixing and Moving plate are installed on the rotating shaft side by side, and the end of turning cylinder connects hydraulic circuit, and hydraulic circuit is communicated with oil pocket in Moving plate, and price fixing arranges belt grooves.During work, belt grooves is for installing belt, belt other end connecting engine output pulley, operation hydraulic circuit, when action bars conversion gear, hydraulic oil can promote Moving plate and move, and makes the spacing between Moving plate and price fixing become large or diminish, thus realize diminishing or becoming large of belt diameter, realize speed change.
Described stepless speed changing passive wheel comprises and is arranged on fixed wheel on follower shaft and driving wheel, and driving wheel arranged outside end cap, end cap is arranged on follower shaft end, arranges spring between end cap and driving wheel.Utilize spring to realize driving wheel to reset, driving wheel can move left and right along follower shaft.
The beneficial effects of the utility model are:
Simple and reasonable, easily realize, convenient operation, the infinitely variable speeds driving wheel of setting and stepless speed changing passive wheel rational in infrastructure, by the change of bel-drivenn gearratio, realize the change of the rotating speed of moving gear box power shaft.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of infinitely variable speeds driving wheel in Fig. 1.
Fig. 3 is the structural representation of stepless speed changing passive wheel in Fig. 1.
In figure: 1, wheel carrier 2, infinitely variable speeds driving wheel 3, adjustment screw mandrel 4, cvt belt 5, stepless speed changing passive wheel 6, engine 7, hydraulic circuit 8, gear lever 9, price fixing 10, turning cylinder 11, belt grooves 12, the end 13 of turning cylinder, Moving plate 14, end cap 15, follower shaft 16, spring 17, fixed wheel 18, driving wheel.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in FIG. 1 to 3, the stepless speed change device of small harvester described in the utility model, comprise infinitely variable speeds driving wheel 2 and stepless speed changing passive wheel 5, infinitely variable speeds driving wheel 2 is arranged on wheel carrier 1, and the installing hole on wheel carrier 1 is elongated hole, and adjustment screw mandrel 3 is arranged at bottom, for adjusting tensioning infinitely variable speeds driving wheel 2, connected by cvt belt 4 between infinitely variable speeds driving wheel 2 and stepless speed changing passive wheel 5, infinitely variable speeds driving wheel 2 connects hydraulic circuit 7, and hydraulic circuit 7 connects gear lever 8.Infinitely variable speeds driving wheel 2 comprises price fixing 9 and Moving plate 13, and price fixing 9 and Moving plate 13 are arranged on turning cylinder 10 side by side, and the end 12 of turning cylinder connects hydraulic circuit 7, and hydraulic circuit 7 is communicated with oil pocket in Moving plate 13, price fixing 9 is arranged belt grooves 11.Stepless speed changing passive wheel 5 comprises and is arranged on fixed wheel 17 on follower shaft 15 and driving wheel 18, and driving wheel 18 arranged outside end cap 14, end cap 14 is arranged on follower shaft 15 end, arranges spring 16 between end cap 14 and driving wheel 18.
When engine 6 works, connected the belt grooves 11 of infinitely variable speeds driving wheel 2 by belt, and drive infinitely variable speeds driving wheel 2 to rotate, infinitely variable speeds driving wheel 2 drives stepless speed changing passive wheel 5 to rotate.When gear lever 8 is allocated at a high speed, hydraulic oil ejects, and the Moving plate 13 of infinitely variable speeds driving wheel 2 slides to price fixing 9 direction, and the trough of belt formed between Moving plate 13 and price fixing 9 subtracts narrow, cvt belt 4 expands outwardly under infinitely variable speeds driving wheel Moving plate 13 and price fixing 9 extrude, and makes belt transmission diameter become large.And overcoming spring 16 tension force under a stretching force at stepless speed changing passive wheel 5 one end cvt belt 4, stepless speed changing passive wheel 5 driving wheel 18 outwards slides, and the race of stepless speed changing passive wheel 5 broadens, and belt transmission diameter diminishes.Thus increasing bel-drivenn gearratio, secondary speed becomes large, and moving gear box power shaft rotating speed becomes large.When gear lever 8 is allocated to low speed, oil pipe oil return, the Moving plate 13 of infinitely variable speeds driving wheel 2 is not by oil pressure active force.The driving wheel 18 of stepless speed changing passive wheel 5 slides to fixed wheel 17 under the effect of spring 16 tension force, and the race of stepless speed changing passive wheel 5 narrows, and belt transmission diameter becomes large.Infinitely variable speeds driving wheel race broadens, and belt transmission diameter diminishes.Bel-drivenn gearratio diminishes, and stepless speed changing passive wheel 5 rotating speed diminishes, and moving gear box power shaft rotating speed diminishes.
Claims (3)
1. the stepless speed change device of a small harvester, it is characterized in that: comprise infinitely variable speeds driving wheel (2) and stepless speed changing passive wheel (5), infinitely variable speeds driving wheel (2) is arranged on wheel carrier (1), connected by cvt belt (4) between infinitely variable speeds driving wheel (2) and stepless speed changing passive wheel (5), infinitely variable speeds driving wheel (2) connects hydraulic circuit (7), and hydraulic circuit (7) connects gear lever (8).
2. the stepless speed change device of small harvester according to claim 1, it is characterized in that: infinitely variable speeds driving wheel (2) comprises price fixing (9) and Moving plate (13), price fixing (9) and Moving plate (13) are arranged on turning cylinder (10) side by side, the end of turning cylinder (10) connects hydraulic circuit (7), hydraulic circuit (7) is communicated with Moving plate (13) interior oil pocket, price fixing (9) is arranged belt grooves (11).
3. the stepless speed change device of small harvester according to claim 1 and 2, it is characterized in that: stepless speed changing passive wheel (5) comprises and is arranged on fixed wheel (17) on follower shaft (15) and driving wheel (18), driving wheel (18) arranged outside end cap (14), end cap (14) is arranged on follower shaft (15) end, arranges spring (16) between end cap (14) and driving wheel (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520106698.5U CN204443169U (en) | 2015-02-12 | 2015-02-12 | The stepless speed change device of small harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520106698.5U CN204443169U (en) | 2015-02-12 | 2015-02-12 | The stepless speed change device of small harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204443169U true CN204443169U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520106698.5U Active CN204443169U (en) | 2015-02-12 | 2015-02-12 | The stepless speed change device of small harvester |
Country Status (1)
| Country | Link |
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| CN (1) | CN204443169U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107873144A (en) * | 2017-12-09 | 2018-04-06 | 无锡松田豹机械科技有限公司 | A kind of rotary cultivator strainer |
| CN113303098A (en) * | 2021-06-23 | 2021-08-27 | 山东巨明机械有限公司 | Four-wheel drive transmission mechanism with bract impurity removal function |
| CN113424707A (en) * | 2021-06-23 | 2021-09-24 | 山东巨明机械有限公司 | Time-sharing four-wheel drive type corn combine harvester and working method thereof |
-
2015
- 2015-02-12 CN CN201520106698.5U patent/CN204443169U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107873144A (en) * | 2017-12-09 | 2018-04-06 | 无锡松田豹机械科技有限公司 | A kind of rotary cultivator strainer |
| CN113303098A (en) * | 2021-06-23 | 2021-08-27 | 山东巨明机械有限公司 | Four-wheel drive transmission mechanism with bract impurity removal function |
| CN113424707A (en) * | 2021-06-23 | 2021-09-24 | 山东巨明机械有限公司 | Time-sharing four-wheel drive type corn combine harvester and working method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |