CN220044239U - Spike tooth telescopic gap-variable threshing cylinder and combine harvester - Google Patents
Spike tooth telescopic gap-variable threshing cylinder and combine harvester Download PDFInfo
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- CN220044239U CN220044239U CN202321468299.4U CN202321468299U CN220044239U CN 220044239 U CN220044239 U CN 220044239U CN 202321468299 U CN202321468299 U CN 202321468299U CN 220044239 U CN220044239 U CN 220044239U
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- 230000005540 biological transmission Effects 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a spike tooth telescopic type variable-gap threshing cylinder and a combine harvester, wherein the spike tooth telescopic type variable-gap threshing cylinder comprises a feeding wheel, a main shaft, a spike tooth telescopic type threshing toothed bar and a supporting amplitude disc, the feeding wheel and the supporting amplitude disc are sequentially arranged on the main shaft along the feeding direction, and the spike tooth telescopic type threshing toothed bar is fixed on the supporting amplitude disc; the tooth telescopic threshing tooth bar comprises a tooth bar fixed on a supporting spoke plate, teeth and springs, wherein mounting holes are formed in positions of the tooth bar, where the teeth are assembled, the teeth are assembled in the mounting holes of the tooth bar in a telescopic mode, and the springs are located in the mounting holes, and are matched with the tooth bar and the teeth at two ends of the springs respectively to enable the springs to be in a compressed state. According to the utility model, the extension length of the spike teeth is automatically adjusted according to the feeding quantity by the spring, so that the threshing gap of the threshing cylinder is adjusted, the threshing cylinder is applicable to the condition of large fluctuation of crop feeding quantity, the threshing performance and threshing adaptability of the combine harvester are improved, and the threshing cylinder is simple in structure and easy to implement.
Description
Technical Field
The utility model relates to the technical field of agricultural machinery equipment, in particular to a spike-tooth telescopic gap-variable threshing cylinder and a combine harvester.
Background
Threshing separation is an essential and crucial process in grain combine harvesting, and a threshing cylinder is an important device of a combine harvester to separate seeds from stems. Wherein, threshing gap of the threshing cylinder and linear speed of the threshing element are important factors influencing threshing performance of grains. Because of the large difference between the physical and mechanical properties of different types of grains and the annual yield difference, the fixed threshing gap and the threshing element linear speed lead to the unsatisfactory threshing effect, and the threshing diameter of the roller can be adjusted to effectively adjust the threshing gap and the threshing element linear speed; the existing variable gap threshing cylinder technology mostly adopts a mode of adjusting a toothed bar to change the diameter, and the method has a complex structure and requires the intervention of an additional transmission device.
Disclosure of Invention
Aiming at the problems that the existing variable-gap threshing cylinder is complex in structure and needs intervention of an additional transmission device, the utility model provides the spike-tooth telescopic variable-gap threshing cylinder, and the spring is arranged between the spike-tooth and the toothed bar to realize that the toothed bar automatically adjusts the extension length of the spike-tooth according to the feeding quantity, so that the threshing gap of the threshing cylinder is adjusted.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the threshing cylinder with telescopic spike teeth and variable gaps is characterized by comprising a feeding wheel, a main shaft, a telescopic spike teeth threshing toothed bar and a supporting amplitude disc, wherein the feeding wheel and the supporting amplitude disc are sequentially and fixedly arranged on the main shaft along the feeding direction, and the telescopic spike teeth threshing toothed bar is fixed on the supporting amplitude disc;
the tooth telescopic threshing tooth bar comprises a tooth bar fixed on a supporting spoke plate, teeth and springs, wherein mounting holes are formed in positions of the tooth bar, where the teeth are assembled, the teeth are assembled in the mounting holes of the tooth bar in a telescopic mode, and the springs are located in the mounting holes, and are matched with the tooth bar and the teeth at two ends of the springs respectively to enable the springs to be in a compressed state.
Further, the supporting frame plate comprises a front supporting frame plate and a rear supporting frame plate which are fixed on the main shaft along the feeding direction, and the front supporting frame plate and the rear supporting frame plate are respectively positioned at two ends of the spike tooth telescopic threshing tooth bar.
Further, the supporting spoke plate further comprises a middle supporting spoke plate arranged between the front supporting spoke plate and the rear supporting spoke plate, and the middle supporting spoke plate is fixed on the main shaft and fixedly connected with the spike tooth telescopic threshing tooth bar.
Further, one end of the spring is fixedly connected with the toothed bar through a first spring bottom plate, and the other end of the spring is fixedly connected with the spike teeth through a second spring bottom plate.
Further, the wire diameter of the spring is 4mm, the free height is 30mm, and the outer diameter is 30mm.
Further, the spring is made of 50Si2Mn.
Further, the mounting hole is a circular hole with the diameter of 32 mm.
Further, the first spring bottom plate and the second spring bottom plate are both disc structures with the diameter of 30mm.
A combine harvester with the telescopic spike-tooth type variable-gap threshing cylinder.
The beneficial effects of the utility model are as follows:
when the spike teeth telescopic type gap-variable threshing cylinder works, crops squeeze the spike teeth when the feeding amount of the matters is large, and then the springs compress the spike teeth, so that the extension length of the spike teeth is reduced, and the threshing gap of the threshing cylinder is increased; when the crop feeding amount is smaller, the compressed spring is restored, the extension length of the spike teeth is increased, and therefore the threshing gap of the threshing cylinder is reduced; the threshing gap of the threshing cylinder is automatically adjusted, and at the moment, the rotation linear speed of the spike teeth and the striking force of the spike teeth on crops are also adjusted. Therefore, the spike tooth telescopic gap-variable threshing cylinder can be suitable for the working condition that the fluctuation of crop feeding quantity is large, and the threshing performance and the threshing adaptability of the combine harvester are improved. The spike tooth telescopic gap-variable threshing cylinder is simple in structure, can be quickly transformed on the original machine type, and is easy to implement.
Drawings
Fig. 1 is a schematic perspective view of a spike-tooth telescopic variable-gap threshing cylinder of the utility model.
Fig. 2 is a schematic view of a part of the structure of a threshing tooth bar with telescopic spike teeth.
In the figure, 1 a feeding wheel, 2 a main shaft, 3 a spike tooth telescopic threshing tooth bar, 301 a spike tooth, 302 a compression spring structure, 303 a tooth bar, 3021 a spring, 3022 a spring base plate, 3023 a spring base plate and 4 a supporting web plate.
Detailed Description
The present utility model will be described in further detail with reference to the drawings, but the scope of the utility model is not limited thereto.
As shown in figure 1, the spike tooth telescopic type gap-variable threshing cylinder comprises a feeding wheel 1, a main shaft 2, a spike tooth telescopic type threshing toothed bar 3 and a supporting spoke plate 4, wherein the feeding wheel 1 and the supporting spoke plate 4 are sequentially and fixedly arranged on the main shaft 2 along the feeding direction, the spike tooth telescopic type threshing toothed bar 3 is fixed on the supporting spoke plate 4, the supporting spoke plate 4 comprises a front supporting spoke plate, a middle supporting spoke plate and a rear supporting spoke plate which are fixed on the main shaft 2 along the feeding direction, the front supporting spoke plate and the rear supporting spoke plate are respectively positioned at two ends of the spike tooth telescopic type threshing toothed bar 3, the middle supporting spoke plate is positioned in the middle of the spike tooth telescopic type threshing toothed bar 3, crops are driven into the threshing cylinder by the feeding wheel 1 when in operation, then the cylinder rotates under the action of the main shaft 2, and crop stalks are threshed under the action of the spike tooth telescopic type threshing toothed bar 3; the front supporting spoke plate and the rear supporting spoke plate play a basic supporting role on the spike-tooth telescopic threshing tooth bar 3, and the middle supporting spoke plate further increases the supporting strength on the spike-tooth telescopic threshing tooth bar 3.
As shown in fig. 2, the tooth-retractable threshing toothed bar 3 comprises a toothed bar 303, teeth 301 and a spring 3021 which are fixed on a supporting amplitude disc 4, a circular mounting hole with the diameter of 32mm is formed in the position of the toothed bar 303, where the teeth 301 are assembled in the mounting hole of the toothed bar 303 in a retractable manner, the spring 3021 is located in the mounting hole, two ends of the spring 3021 are respectively matched with the toothed bar 303 and the teeth 301 to enable the spring 3021 to be in a compressed state, when the spring 3021 is compressed or restored, the mounting hole can limit the spring 3021 in the circumferential direction, the spring 3021 is prevented from swinging left and right to further affect the toothed bar 303 to threshing crop stalks, one end of the spring 3021 is fixedly connected with the toothed bar 303 through a first spring bottom plate 3022, the other end of the spring 3023 is fixedly connected with the teeth 301 through a second spring bottom plate 3023, the wire diameter of the spring 3021 is 4mm, the free height of the spring 3021 is 30mm, the outer diameter of the spring 3021 is 30mm, the spring 3022 is made of Si 50 bottom plate 3022, and the second bottom plate 3022 is provided with the second bottom plate 30mm, and the spring 3022 is convenient to be installed in the first bottom plate and the second bottom plate is provided with the second bottom plate 30mm.
In the combine harvester with the telescopic spike-tooth gap-variable threshing cylinder, when the feeding amount of the crop is large in the harvesting process, the spike-tooth 301 is extruded by crops, so that the spring 3021 is further compressed, the extension length of the spike-tooth 301 is reduced, and the threshing gap of the threshing cylinder is increased; when the crop feed is small, the compressed spring 3021 is restored, increasing the extension length of the spike 301, thereby reducing the threshing gap of the threshing cylinder. Therefore, the spike tooth telescopic gap-variable threshing cylinder can be suitable for the working condition that the fluctuation of crop feeding quantity is large, and the threshing performance and the threshing adaptability of the combine harvester are improved.
The examples are preferred embodiments of the present utility model, but the present utility model is not limited to the above-described embodiments, and any obvious modifications, substitutions or variations that can be made by one skilled in the art without departing from the spirit of the present utility model are within the scope of the present utility model.
Claims (9)
1. A spike tooth telescopic type variable-clearance threshing cylinder is characterized in that: the device comprises a feeding wheel (1), a main shaft (2), a spike tooth telescopic threshing toothed bar (3) and a supporting amplitude disc (4), wherein the feeding wheel (1) and the supporting amplitude disc (4) are sequentially and fixedly arranged on the main shaft (2) along the feeding direction, and the spike tooth telescopic threshing toothed bar (3) is fixed on the supporting amplitude disc (4);
the tooth telescopic threshing tooth bar (3) comprises a tooth bar (303), teeth (301) and springs (3021) which are fixed on a supporting web plate (4), mounting holes are formed in positions, where the teeth (301) are assembled, of the tooth bar (303), the teeth (301) are telescopically assembled in the mounting holes of the tooth bar (303), and the springs (3021) are located in the mounting holes and are matched with the tooth bar (303) and the teeth (301) at two ends respectively to enable the teeth to be in a compressed state.
2. The spike-tooth telescopic variable-gap threshing cylinder of claim 1, wherein: the supporting frame disc (4) comprises a front supporting frame disc and a rear supporting frame disc which are fixed on the main shaft (2) along the feeding direction, and the front supporting frame disc and the rear supporting frame disc are respectively fixed at two ends of the spike tooth telescopic threshing toothed bar (3).
3. The spike-tooth telescopic variable-gap threshing cylinder of claim 2, wherein: the supporting spoke plate (4) further comprises a middle supporting spoke plate arranged between the front supporting spoke plate and the rear supporting spoke plate, and the middle supporting spoke plate is fixed on the main shaft (2) and fixedly connected with the spike tooth telescopic threshing toothed bar (3).
4. The spike-tooth telescopic variable-gap threshing cylinder of claim 1, wherein: one end of the spring (3021) is fixedly connected with the toothed bar (303) through a first spring bottom plate (3022), and the other end of the spring is fixedly connected with the spike teeth (301) through a second spring bottom plate (3023).
5. The spike-tooth telescopic variable-gap threshing cylinder of claim 1, wherein: the wire diameter of the spring (3021) is 4mm, the free height is 30mm, and the outer diameter is 30mm.
6. The spike-tooth telescopic variable-gap threshing cylinder of claim 1, wherein: the spring (3021) is made of 50Si2Mn.
7. The spike-tooth telescopic variable-gap threshing cylinder of claim 4, wherein: the mounting holes are round holes with the diameter of 32 mm.
8. The spike-tooth telescopic variable-gap threshing cylinder of claim 7, wherein: the first spring base plate (3022) and the second spring base plate (3023) are both disc structures with diameters of 30mm.
9. A combine harvester fitted with a spike-tooth telescopic variable-gap threshing cylinder as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321468299.4U CN220044239U (en) | 2023-06-09 | 2023-06-09 | Spike tooth telescopic gap-variable threshing cylinder and combine harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321468299.4U CN220044239U (en) | 2023-06-09 | 2023-06-09 | Spike tooth telescopic gap-variable threshing cylinder and combine harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220044239U true CN220044239U (en) | 2023-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321468299.4U Active CN220044239U (en) | 2023-06-09 | 2023-06-09 | Spike tooth telescopic gap-variable threshing cylinder and combine harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220044239U (en) |
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2023
- 2023-06-09 CN CN202321468299.4U patent/CN220044239U/en active Active
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