CN201438818U - Improved special speed change box clutch for self-propelled combined harvester - Google Patents
Improved special speed change box clutch for self-propelled combined harvester Download PDFInfo
- Publication number
- CN201438818U CN201438818U CN2009201245443U CN200920124544U CN201438818U CN 201438818 U CN201438818 U CN 201438818U CN 2009201245443 U CN2009201245443 U CN 2009201245443U CN 200920124544 U CN200920124544 U CN 200920124544U CN 201438818 U CN201438818 U CN 201438818U
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- belt pulley
- self
- disk spring
- improved
- speed change
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Abstract
The utility model discloses an improved special speed change box clutch for a self-propelled combined harvester. The improved special speed change box clutch comprises a belt pulley, a stretching screw, a releasing lever, a clamping plate, a middle clamping plate and a friction disk assembly, and adopts the structure that a disk spring socket with grooved inner circle is covered on the bushing on the inner convex circle of the belt pulley and positioned between the belt pulley and the clamping plate, and the clamping plate is buckled at the edge of the outer circle of the disk spring. By fully utilizing the variable rigidity characteristic of the disk spring, the decreased clamping force of the clutch due to abrasion of the friction disk in the long term operation is improved, the transmission torque is improved, the production cost is saved, and the operating force and the maintenance expense are also reduced.
Description
Affiliated technical field
The utility model relates to agricultural machinery technological field, particularly relates to the special-purpose gearbox clutch of a kind of self-propelled combine.
Background technology
China's self-propelled combine has had more than ten years history so far since the early 1990s appears on the market.At present, full feeding self-propelled combine gearbox clutch all adopts the structure of cylindrically coiled spring pressing friction sheet, through actual use for many years, find following some problem, show that mainly cylindrically coiled spring behind the clutch friction pad wear does not diminish because of it becomes the thrust that stiffness characteristics applies, reduce that long-term work will not reach instructions for use thereby cause it to transmit moment of torsion, cause friction plate to burn sheet easily, so that entire machine can not use.
The utility model content
The purpose of this utility model is to provide a kind of output torque that improves behind the gearbox clutch friction pad wear, and structure is simpler, the special-purpose gearbox clutch apparatus of the self-propelled combine that manufacturing cost is lower.
For solving the problems of the technologies described above, the utility model provides following technical scheme: the improvement of the special-purpose gearbox clutch of a kind of self-propelled combine, it comprises belt pulley, adjustment screw rod, separator levers, pressing plate, center platen and the friction plate assembly of frictional force is provided, it is characterized in that: the disk spring of interior circle fluting is enclosed within the belt pulley on the lining on the dome, between belt pulley and pressing plate, pressing plate is buckled in the disk spring outer circular edge.
The beneficial effects of the utility model are: since utilized the mechanical property of internal recessing disk spring be in a deformation range its stiffness characteristics because of the characteristic that reduces to increase on the contrary of deflection, make it to meet fully the actual instructions for use of the special-purpose gearbox clutch of self-propelled combine, both guaranteed the thrust that clutch reduces because of the wearing and tearing of long-term work friction plate, also reduced the spoilage of part, reduce maintenance cost, improved the overall performance of gearbox.Simultaneously,, replace the structure of a slice internal recessing disk spring, also reduced production cost a plurality of cylindrically coiled springs in the former mechanism.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the utility model structural representation.
Fig. 2 is the disk spring cross-sectional view.
Fig. 3 is Fig. 2 left view.
1. friction plate assemblies, 2. center platens, 3. pressing plates, 4. disk springs, 5. linings, 6. separator levers 7. are adjusted screw rod 8. belt pulleys among the figure
Embodiment
As shown in Figure 1, the utility model is based on the improvement of the special-purpose gearbox clutch of former self-propelled combine, its structure is that a plurality of cylindrically coiled spring generation in original mechanism is a slice disk spring 4, this disk spring 4 is a kind of with the rammed hollow truncated cone spring of sheet metal, and have the arc groove of some symmetries on the interior circle, its concrete structure can be clear that from profile shown in Figure 2 disk spring 4 is frustoconical as shown in Figures 2 and 3.As shown in the figure 1, belt pulley 8 is installed on the gear-box axle, lining 5 is enclosed within on the belt pulley 8 interior domes, the disk spring 4 of interior circle fluting is enclosed within on the lining 5, between belt pulley 8 and pressing plate 3, disk spring 4 outer circular edge of circle fluting in pressing plate 3 is buckled in, friction plate assembly 1 is two friction plate structures, and is provided with center platen 2 between 2 friction plates.Since in adopting the disk spring 4 of circle fluting associated to pressing plate 3, separator levers 6, adjust screw rod 7, belt pulley 8 has carried out corresponding change.
During work, this structure is by manually forcing in separator levers 6 indirectly, and separator levers 6 pulling pressing plates 3 make it move axially to the right, thereby make friction plate assembly 1 produce the gap, and clutch is implemented and separated; Separator levers 6 returns after the artificial application of force is finished, the disk spring 4 of interior circle fluting produces thrusts and acts on pressing plate 3, makes 1 one-tenth engagement state of friction plate assembly.
By above-mentioned improvement because the disk spring 4 of interior circle fluting self becomes stiffness characteristics, guaranteed the clutch long-term work after, because of the thrust that friction disc wear reduces, improved the transmission moment of torsion.Also reduce the spoilage and the cost of part, reduced maintenance cost, improved the overall performance of gearbox.
Claims (1)
1. the improvement of the special-purpose gearbox clutch of self-propelled combine, comprise belt pulley, adjust screw rod, separator levers, pressing plate, center platen and friction plate assembly, it is characterized in that: the disk spring of interior circle fluting is enclosed within the belt pulley on the lining on the dome, between belt pulley and pressing plate, pressing plate is buckled in the disk spring outer circular edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201245443U CN201438818U (en) | 2009-07-13 | 2009-07-13 | Improved special speed change box clutch for self-propelled combined harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201245443U CN201438818U (en) | 2009-07-13 | 2009-07-13 | Improved special speed change box clutch for self-propelled combined harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201438818U true CN201438818U (en) | 2010-04-21 |
Family
ID=42543491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201245443U Expired - Fee Related CN201438818U (en) | 2009-07-13 | 2009-07-13 | Improved special speed change box clutch for self-propelled combined harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201438818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103004381A (en) * | 2013-01-09 | 2013-04-03 | 江苏名豪汽车零部件有限公司 | Pulley clutch |
-
2009
- 2009-07-13 CN CN2009201245443U patent/CN201438818U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103004381A (en) * | 2013-01-09 | 2013-04-03 | 江苏名豪汽车零部件有限公司 | Pulley clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100421 Termination date: 20170713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |