CN215683481U - Grain re-threshing roller device - Google Patents
Grain re-threshing roller device Download PDFInfo
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- CN215683481U CN215683481U CN202121637877.3U CN202121637877U CN215683481U CN 215683481 U CN215683481 U CN 215683481U CN 202121637877 U CN202121637877 U CN 202121637877U CN 215683481 U CN215683481 U CN 215683481U
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- sieve
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- cutter teeth
- threshing
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Abstract
The utility model discloses a grain re-threshing roller device, and belongs to the technical field of grain threshing. The device comprises a drum part, a plurality of cutter teeth and a plurality of cutter teeth, wherein the drum part is horizontally arranged and comprises an intermediate shaft, a circular pipe, auger blades and cutter teeth, the intermediate shaft is in transmission connection with a transmission mechanism, the circular pipe is fixedly sleeved on the outer side wall of the intermediate shaft, the auger blades are spirally fixed on the outer side wall of the circular pipe in a surrounding manner, and the cutter teeth are connected to the outer side edges of the auger blades and extend outwards; sieve board portion, its level arranges in cylinder portion below, and sieve board portion length direction arranges along cylinder portion length direction, runs through on the sieve board portion and has seted up a plurality of sieve meshes. The utility model has compact structure, simple structure and high reliability, can realize the directional conveying of the impurity materials through the rotation of the auger blades, can effectively remove the grains in the impurity materials by the cutter teeth, can screen the removed grains from the sieve holes of the sieve plate part, meets the requirement of secondary threshing of the impurity materials, and has high threshing rate.
Description
Technical Field
The utility model belongs to the technical field of grain threshing, and particularly relates to a grain re-threshing roller device.
Background
Along with the improvement of people's standard of living in recent years, millet is as a high-quality cereal, market demand is more and more, but the millet is the clean crop of difficult threshing, combine harvester that exists is the vertical axial flow type mostly on the existing market, generally improve the threshing performance of harvester through increasing threshing cylinder length, longer threshing cylinder is though can increase the threshing time of crop, obtain better threshing effect, but when facing a large amount of crops to feed, very easily take place blocking phenomenon at thresher's feed inlet, cause threshing load to increase, the miscellaneous processing is unclean or even leads to threshing cylinder axle fracture.
At present, the trash generated in the harvesting and threshing process of a semi-feeding combined rice harvester is treated by a re-threshing device, namely, the unhulled residual ears are brushed by utilizing a blade rotating at a high speed for secondary combing, and then the threshing object is conveyed to the upper part of a vibrating screen again by a lifting auger for secondary separation.
Through retrieval, the Chinese patent publication number: CN 107960213A; the publication date is as follows: year 2018, month 4, day 27; the combine harvester comprises a combine body, the re-threshing cleaning device is mounted on the combine body and comprises a grain re-threshing roller, the grain re-threshing roller comprises an outer barrel, a feed inlet and a discharge outlet are formed in two ends of the outer barrel respectively, an inner barrel is coaxially arranged inside the outer barrel, the outer barrel and the inner barrel are rotatably assembled, auger blades used for conveying materials are arranged on at least one of the inner surface of the outer barrel or the outer surface of the inner barrel, a material conveying channel is formed between the inner barrel and the outer barrel, and a compression roller used for being matched with the inner surface of the outer barrel and/or the outer surface of the inner barrel to roll and thresh grains passing through is arranged between the inner barrel and the outer barrel. The device of this application rolls through the rethreshing cylinder and realizes the rethreshing of cereal, blocks the damage easily in the use, and the rethreshing effect of rolling action remains to be improved.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one of the above problems, the present invention adopts the following technical solutions.
A grain rethreading roller device, comprising:
the roller part is horizontally arranged and comprises an intermediate shaft, a circular pipe, auger blades and cutter teeth, the intermediate shaft is in transmission connection with the transmission mechanism, the circular pipe is fixedly sleeved on the outer side wall of the intermediate shaft, the auger blades are spirally fixed on the outer side wall of the circular pipe in a surrounding mode, and the cutter teeth are connected to the outer side edges of the auger blades and extend outwards;
sieve board portion, its level arranges in cylinder portion below, and sieve board portion length direction arranges along cylinder portion length direction, runs through on the sieve board portion and has seted up a plurality of sieve meshes.
Furthermore, each cutter tooth of the drum part is detachably connected with the auger blade.
Furthermore, the sieve plate part is a concave plate sieve, and a space is reserved between the concave side surface of the sieve plate part and the auger blade.
Furthermore, the outer side wall of one end of the circular tube is fixedly connected with a grass discharging plate, and the grass discharging plate is arranged along the radial direction of the circular tube.
Furthermore, there are two grass discharging plates, and the two grass discharging plates are symmetrically arranged on the same plane.
Further, fixedly connected with reinforcing plate on the terminal surface of pipe fixedly connected with row grass board, reinforcing plate and pipe terminal surface parallel arrangement, row grass board and reinforcing plate fixed connection.
Further, the sieve plate part sequentially comprises a first section, a middle section and a tail section from one end to the other end, wherein the sieve pore diameter at the first section is the largest, and the sieve pore diameter at the middle section is the smallest;
the tail section is positioned below the grass discharging plate.
Further, the minimum distance L between the cutter teeth and the concave side face of the sieve plate part is 5 mm.
Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
(1) the grain re-threshing roller device has the advantages of compact structure, simple structure and high reliability, can realize the directional conveying of impurity materials through the rotation of the auger blades, can effectively remove grains in the impurity materials by the cutter teeth, and can ensure that the removed grains fall from the sieve holes of the sieve plate part, thereby meeting the requirement of secondary threshing of the impurity materials and having high threshing rate;
(2) according to the grain re-threshing roller device, the cutter teeth are detachably connected with the auger blades, so that the cutter teeth are convenient to replace and maintain;
(3) the grain re-threshing roller device is in a sieve plate part structure of a concave plate sieve, and is beneficial to improving the threshing rate of the device;
(4) according to the grain rethreshing roller device, the grass discharging plate can pull out the residual weed materials which are conveyed to the end part of the roller and are subjected to secondary rethreshing from the gap between the roller part and the sieve plate part, so that the grass discharging effect is achieved;
(5) according to the grain re-threshing roller device, the reinforcing plate is fixedly connected to the end part of the circular tube, so that the fixed connection structure of the grass discharging plate and the circular tube can be strengthened, the connection structure is prevented from being stressed and losing efficacy during grass discharging, and the effective service life of the device is prolonged;
(6) according to the grain re-threshing roller device, the sieve mesh size of the sieve plate part is specially set, so that normal sieving of grains can be guaranteed on the premise of reducing weed sieving, and the threshing rate is guaranteed;
(7) the utility model has simple structure, reasonable design and easy manufacture.
Drawings
FIG. 1 is a schematic view of a grain re-threshing drum apparatus according to the present invention;
FIG. 2 is a top view of the drum portion of the present invention;
FIG. 3 is a top view of the screen section of the present invention;
FIG. 4 is a schematic view of the drum without welded auger blades;
FIG. 5 is a schematic view of the drum portion without cutter teeth installed;
FIG. 6 is a schematic view of a cutter tooth of the present invention;
FIG. 7 is an enlarged view taken at A in FIG. 1;
in the figure:
1. a drum part;
10. an intermediate shaft; 11. a circular tube; 12. a screw blade; 13. cutter teeth; 14. grass discharging plates; 15. a reinforcing plate;
2. a screen panel portion;
20. screening holes; 21. a first stage; 22. a middle section; 23. and (4) a tail section.
Detailed Description
The utility model is further described with reference to specific embodiments and the accompanying drawings.
Example 1
The grain rethreshing drum device of this embodiment includes:
the drum part 1 is horizontally arranged and comprises an intermediate shaft 10, a circular pipe 11, auger blades 12 and cutter teeth 13, wherein the intermediate shaft 10 is in transmission connection with a transmission mechanism, the circular pipe 11 is fixedly sleeved on the outer side wall of the intermediate shaft 10, the auger blades 12 are spirally fixed on the outer side wall of the circular pipe 11 in a surrounding manner, and the cutter teeth 13 are provided with a plurality of cutter teeth and are connected to the outer side edge of the auger blades 12 and extend outwards;
As shown in fig. 1, the grain rethreshing drum device of the present embodiment includes a drum part 1 and a sieve plate part 2, wherein:
the drum part 1 is shown in figure 2, an intermediate shaft 10 of the drum part 1 is generally rotatably connected to a frame of a re-threshing device, one end of the intermediate shaft 10 is rotatably connected with the frame of the re-threshing device through a bearing seat structure, the other end of the intermediate shaft 10 is also rotatably connected to the frame through a bearing seat and is in transmission connection with a transmission structure such as a motor through a shaft coupling structure and the like, the transmission structure can drive the intermediate shaft 10 to rotate, as shown in figure 4, a circular pipe 11 is a hollow pipe which is sleeved on the intermediate shaft 10 and welded and fixed on the intermediate shaft 10 to provide protection for the intermediate shaft 10, an auger blade 12 is a spiral blade, and the effect of directionally transporting materials can be realized when the auger blade axially rotates, as shown in figure 5, the auger blade 12 is fixed on the outer side wall of the circular pipe 11 through a welding mode, a plurality of cutter teeth 13 are uniformly arranged at the edge of the auger blade 12, and each cutter tooth 13 protrudes outwards from the edge of the auger blade 12, when the auger blade 12 rotates to transport materials, the cutter teeth 13 arranged at intervals can continuously impact the materials;
the sieve plate part 2 is arranged below the roller part 1 and is arranged in parallel with the roller part 1, the length direction of the sieve plate part 2 is arranged along the length direction of the roller part 1, namely along the axial direction of the intermediate shaft 10, after materials are added into the roller part 1, the sieve plate part 2 is positioned between the roller part 1 and the sieve plate part 2, and miscellaneous and residual materials generated in the grain separation process are added from one end of the roller part 1 and are conveyed to the other end along with the rotation of the roller part 1, as shown in fig. 3.
When grains are rethreshed, the grain rethreshing drum device of the embodiment adds the impurity materials into one end of the drum part 1, the auger blade 12 of the drum part 1 is driven by the rotation of the circular tube 11 to rotate, and then the impurity materials are directionally conveyed to the other end of the drum part 1 along the length direction of the drum part 1, when the auger blade 12 rotates, the cutter teeth 13 connected to the edge of the auger blade 12 move along with the rotation of the auger blade 12, the impurity materials between the auger blade 12 and the sieve plate part 2 can be continuously beaten, so that the residual grains are rethreaded, the grains are sieved from the sieve holes 20 of the sieve plate part 2, along with the continuous directional movement of the impurity materials along the length direction of the drum part 1, the grains in the impurity materials can be continuously sieved under the beating action of the cutter teeth 13, and therefore the rethreshing effect is achieved, and the rethreshing rate is high.
Example 2
The grain re-threshing roller device of the embodiment is further improved on the basis of the embodiment 1, and each cutter tooth 13 of the roller part 1 is detachably connected with an auger blade 12.
As shown in fig. 2 and 6, the cutter tooth 13 is detachably connected to the auger blade 12 by a bolt structure in this embodiment, as shown in fig. 6, one end of the cutter tooth 13 is a striking part, which is a triangular tip, and the other end is a fixing part, a bolt hole is formed in the fixing part, a bolt hole is also formed in a corresponding position on the edge of the auger blade 12, and the cutter tooth 13 is fixedly connected to the auger blade 12 by a bolt.
Because grain rethreshing device is when using, the miscellaneous material of constantly beating is beaten to sword tooth 13, has wearing and tearing on the one hand, and on the other hand often receives the impact force and the junction of auger blade 12 is inefficacy easily, adopts the mode of can dismantling the connection to make things convenient for the change maintenance of sword tooth 13.
Example 3
The grain re-threshing roller device of the embodiment is further improved on the basis of the embodiment 2, the sieve plate part 2 is a concave plate sieve, and a space is reserved between the concave side surface of the sieve plate part 2 and the auger blade 12.
As shown in fig. 1 and 3, the sieve plate part 2 is a concave plate sieve structure, the middle part of the sieve plate part is concave, the sieve plate part is semicircular in side view, the concave radian of the concave plate sieve is matched with the radian of the drum part 1, a distance is reserved between the concave side surface of the sieve plate part 2 and the auger blade 12, the minimum distance between the sieve plate part 2 and the cutter teeth 13 is larger than zero, the rotation of the auger blade 12 cannot be influenced, meanwhile, the concave plate sieve structure increases the area of the impurity material contacting the sieve plate part 2 and the auger blade 12, the material transmission efficiency is improved, the probability that the cutter teeth 13 effectively hit the impurity material is also improved, and therefore the clearance rate is improved.
Example 4
The grain rethreshing drum device of this embodiment, make further improvement on the basis of embodiment 3, the row's grass board 14 is connected with fixedly on the lateral wall of one end of pipe 11, row's grass board 14 is along pipe 11 radial arrangement.
As shown in fig. 1 and 4, the grass discharging plate 14 is fixed at the end of the roller part 1 for conveying materials, when the intermediate shaft 10 of the roller part 1 rotates directionally, the materials are conveyed towards a fixed direction, the impurity materials are added from one end of the roller part 1 without the grass discharging plate 14, along with the rotation of the intermediate shaft 10, the materials complete secondary re-threshing in the transmission process, the amount of grains in the impurity materials conveyed to the grass discharging plate 14 is very small, and the impurity materials can be pulled out from the gap between the roller part 1 and the sieve plate part 2 through the grass discharging plate 14, so that the grass discharging effect is achieved.
Example 5
The grain rethreshing roller device of this embodiment is further improved on the basis of embodiment 4, there are two grass discharging plates 14, and two grass discharging plates 14 are symmetrically arranged on the same plane.
The two grass discharge plates 14 are arranged in the embodiment, so that the grass discharge efficiency can be improved.
Further, the number of the grass discharge plates 14 is not limited to two, and may be several more than two.
Example 6
The grain re-threshing roller device of the embodiment is further improved on the basis of the embodiment 5, the end face of the circular tube 11 fixedly connected with the grass discharging plate 14 is fixedly connected with the reinforcing plate 15, the reinforcing plate 15 and the end face of the circular tube 11 are arranged in parallel, and the grass discharging plate 14 is fixedly connected with the reinforcing plate 15.
As shown in fig. 5, reinforcing plate 15 welded fastening is on the tip terminal surface that pipe 11 is connected with row grass board 14, through the setting of reinforcing plate 15, make a side of row grass board 14 can with reinforcing plate 15 fixed welding, thereby strengthened row grass board 14 fixed knot and constructed the intensity, because row grass board 14 can be atress at row grass in-process, the atress is used in the junction of row grass board 14 and pipe 11, row grass board 14 only leans on with pipe 11 a welded construction fixed unreliable, it can strengthen fixed effect to set up reinforcing plate 15.
Example 7
The grain re-threshing roller device of the embodiment is further improved on the basis of the embodiment 6, the sieve plate part 2 sequentially comprises a first section 21, a middle section 22 and a tail section 23 from one end to the other end, the diameter of the sieve hole 20 at the first section 21 is the largest, and the diameter of the sieve hole 20 at the middle section 22 is the smallest;
the tail section 23 is located below the grass discharge plate 14.
As shown in fig. 3, after the miscellaneous materials are fed into the drum part 1, the miscellaneous materials are conveyed from the first section 21 of the screen plate part 2 to the tail section 23 through the middle section 22, and then are discharged by the grass discharge plate 14, the miscellaneous materials which are just fed into the drum part 1 are not beaten by the cutter teeth 13, the sieve holes 20 with larger pore diameters are beneficial to primarily sieving off grains which are easy to fall off, after the miscellaneous materials are conveyed to the middle section 22, the miscellaneous materials are beaten by the cutter teeth 13, the grains in the materials can be beaten to fall off, meanwhile, weeds can be beaten up, therefore, the middle section 22 is provided with smaller sieve holes 20 to reduce the screening amount of the weeds, after the miscellaneous materials are conveyed to the tail section 23, the grains in the miscellaneous materials basically fall off, meanwhile, the weeds are also more finely crushed, but the beating area of the cutter teeth 13 is left, and the sieve holes 20 with moderate pore diameters are arranged here to be used as the final sieving.
Further, in this embodiment, the sieve holes 20 are rectangular, the widths of the sieve holes 20 at different positions are the same and are 5mm, the length of the sieve hole 20 at the first section 21 is 120mm, the sieve hole 20 at the middle section 22 is composed of ten rows of 50mm sieve holes 20 along the length direction, the sieve hole 20 at the tail section 23 is composed of three rows of sieve holes 20 with the lengths of 74.5mm, 60mm and 60mm in sequence along the length direction, and by setting the size of this embodiment, the normal sifting of the wheat grains can be ensured on the premise of reducing the sifting of the weeds, and the threshing rate is ensured.
Example 8
The grain re-threshing roller device of the embodiment is further improved on the basis of the embodiment 7, and the minimum distance L between the cutter teeth 13 and the concave side surface of the sieve plate part 2 is 5 mm.
As shown in fig. 7, the minimum distance L between the tips of the knife teeth 13 and the sieve plate 2 is 5mm in this embodiment, and this distance is designed for rethreshing the miscellaneous materials of wheat grains, so that when the drum 1 rethreshes, the knife teeth 13 can be ensured to effectively strike grains in the threshed miscellaneous materials, and meanwhile, excessive extrusion damage to the grains is not generated, and the drum 1 cannot be jammed when rotating.
The examples described herein are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. A grain re-threshing roller device is characterized by comprising:
the roller part is horizontally arranged and comprises an intermediate shaft, a circular pipe, auger blades and cutter teeth, the intermediate shaft is in transmission connection with the transmission mechanism, the circular pipe is fixedly sleeved on the outer side wall of the intermediate shaft, the auger blades are spirally fixed on the outer side wall of the circular pipe in a surrounding mode, and the cutter teeth are connected to the outer side edges of the auger blades and extend outwards;
sieve board portion, its level arranges in cylinder portion below, and sieve board portion length direction arranges along cylinder portion length direction, runs through on the sieve board portion and has seted up a plurality of sieve meshes.
2. The grain rethreading roller device according to claim 1, wherein: each cutter tooth of the drum part is detachably connected with the auger blade.
3. The grain rethreshing drum device according to claim 2, wherein: the sieve plate part is a concave plate sieve, and a space is reserved between the concave side surface of the sieve plate part and the auger blade.
4. The grain rethreshing drum device according to claim 3, wherein: the outer side wall of one end of the circular tube is fixedly connected with a grass discharging plate, and the grass discharging plate is arranged along the radial direction of the circular tube.
5. The grain rethreading roller device according to claim 4, wherein: the number of the grass discharging plates is two, and the two grass discharging plates are symmetrically arranged on the same plane.
6. The grain rethreading roller device according to claim 4, wherein: fixedly connected with reinforcing plate on the terminal surface of pipe fixedly connected with row grass board, reinforcing plate and pipe terminal surface parallel arrangement, row grass board and reinforcing plate fixed connection.
7. The grain rethreading roller device according to claim 6, wherein: the screen plate part sequentially comprises a first section, a middle section and a tail section from one end to the other end, wherein the aperture of a screen hole at the first section is the largest, and the aperture of a screen hole at the middle section is the smallest;
the tail section is positioned below the grass discharging plate.
8. The grain rethreading roller device according to claim 7, wherein: the minimum distance L between the cutter teeth and the concave side face of the sieve plate part is 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121637877.3U CN215683481U (en) | 2021-07-19 | 2021-07-19 | Grain re-threshing roller device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121637877.3U CN215683481U (en) | 2021-07-19 | 2021-07-19 | Grain re-threshing roller device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215683481U true CN215683481U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121637877.3U Active CN215683481U (en) | 2021-07-19 | 2021-07-19 | Grain re-threshing roller device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215683481U (en) |
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2021
- 2021-07-19 CN CN202121637877.3U patent/CN215683481U/en active Active
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