CN215602014U - Threshing device and harvester - Google Patents

Abstract

The utility model relates to a threshing device and a harvester. The threshing device comprises two rollers and a feeding arc plate; each roller comprises a feeding cone, a roller shaft and a roller wall surrounding the roller shaft, the feeding cone is fixed at the front end of the roller shaft, and the roller wall is connected with the feeding cone; the roller shafts of the two rollers are parallel to each other and arranged side by side left and right; the feeding arc plate is detachably arranged at the lower sides of the two feeding cones; the feeding arc plate is provided with two arc surfaces which respectively guide the flow to the two rollers. The device adopts the longitudinal axial flow roller, and the feeding arc plate can uniformly guide the materials to the two rollers respectively for threshing, so that the efficiency of threshing operation and the threshing quality are improved.

Description

Threshing device and harvester

Technical Field

The utility model relates to the field of agricultural machinery, in particular to a threshing device and a harvester.

Background

Threshing devices are an important component of harvesters.

The threshing device in the prior art is a double-longitudinal axial flow roller, the front part of the threshing device is provided with a transverse axial flow roller for feeding crops, or the rear part of the threshing device is provided with a grass discharging wheel for carrying out auxiliary grass discharging operation.

Therefore, the size and the weight of the whole harvester are increased, and the threshing device is complex in structure and difficult to install; however, simply omitting the feeding device and the grass discharge wheel can result in the unsmooth feeding and grass discharge of crops, reduce the threshing efficiency and threshing quality, and even improve the failure rate of the harvester.

In addition, the roller in the prior art mostly adopts a closed roller wall, so that the diameter of the cross section of the roller is a fixed value and the roller cannot be suitable for different crops.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a threshing device and a harvester.

The technical scheme for solving the technical problems is as follows:

the utility model provides a threshing device, wherein each roller comprises a feeding cone, roller shafts and a roller wall surrounding the roller shafts, the feeding cone is fixed at the front end of each roller shaft, and the roller shafts of the two rollers are parallel to each other and arranged side by side left and right; the feeding arc plate is detachably arranged at the lower sides of the two feeding cones; the feeding arc plate is provided with two arc surfaces which respectively guide the flow to the two rollers.

The beneficial effect who adopts above-mentioned further scheme is that, set up feeding arc board at the feeding cone downside of cylinder, can implement the water conservancy diversion to the crop, make it can get into the cylinder fast and thresh.

Furthermore, the wall of the roller is provided with a plurality of rod tooth parts, and the other end of the roller shaft is detachably provided with a fixed breadth disc; the plurality of rod tooth assemblies are detachably arranged between the fixed width disc and the feeding cone, and each rod tooth assembly is parallel to the roller shaft.

Adopt the beneficial effect of above-mentioned further scheme to be, adopt many detachable pole tooth to close as open cylinder wall, make the cross section diameter of cylinder adjustable, make the cylinder can adapt to the crop threshing of different demands.

Further, at least one connecting disc is fixedly connected to the roller shaft, and the rod tooth assembly is divided into at least two sections which are respectively detachably mounted between the feeding cone and the adjacent connecting disc, between the fixed breadth disc and the adjacent connecting disc or between the two adjacent connecting discs.

The beneficial effect who adopts above-mentioned further scheme is, set up the pole tooth closes the piece into at least one section, makes threshing area length on the cylinder can adjust, has further improved the practicality of cylinder.

Furthermore, each section of the rod tooth assembly comprises a threshing rod and threshing teeth, rod tooth connecting pieces are fixedly arranged at two ends of the threshing rod respectively, and a plurality of groups of rod tooth mounting holes are formed in the rod tooth connecting pieces; a plurality of threshing teeth are uniformly fixed on the threshing rod at intervals, the threshing teeth extend along the radial direction of the threshing rod, and an included angle is formed between the axis of each threshing tooth and the axis of the roller; the threshing rod is arranged at the position corresponding to each group of rod tooth mounting holes, and the included angle between the axis of the threshing teeth and the drum shaft is different.

The beneficial effect who adopts above-mentioned further scheme is that, through rotating the contained angle of threshing rod regulation threshing teeth's axis and cylinder axle, make the threshing teeth of cylinder can adapt to different crops and the condition of threshing to make the suitability of cylinder more extensive.

Furthermore, a spiral feeding blade is arranged on the feeding cone.

Adopt above-mentioned further scheme's beneficial effect be, the spiral feeding blade can be more quick with the crop direction to in the cylinder.

Further, the rotation directions of the two rollers are opposite.

The beneficial effect of adopting the further proposal is that the threshing quality and efficiency are ensured.

Furthermore, the front end of the feeding arc plate is provided with a connecting flat plate, and the rear end of the connecting flat plate is in lap joint with the two arc surfaces.

The beneficial effect of adopting the further proposal is that the feeding arc plate is convenient to be connected with the gap bridge of the harvester.

Further, the front dimension of each cambered surface is larger than or equal to the rear dimension.

The beneficial effect of adopting above-mentioned further scheme is, further improved the water conservancy diversion effect.

Further, an arc transition connecting structure is arranged between the two arc surfaces of the feeding arc plate and the flat connecting plate.

Adopt the beneficial effect of above-mentioned further scheme to be, effectively keep apart the crop that gets into two cylinders, prevent to influence each other.

The utility model provides a harvester which comprises the threshing device.

Drawings

FIG. 1 is a schematic view of the construction of two drums according to the present invention;

FIG. 2 is a schematic view of the feed arc plate of the present invention;

FIG. 3 is a schematic structural view of a three-stage split feeding arc plate of the present invention;

fig. 4 is a schematic structural diagram of the harvester of the utility model.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a header; 2. bridging; 3. a drum cover;

4. a drum; 401. feeding a cone; 402. a drum shaft; 403. fixing the breadth disc; 404. a rod toothing; 4041. a bar and tooth attachment; 405. a connecting disc;

5. a concave plate sieve; 6. a grass cutting and discharging device; 7. a cleaning device; 8. a cleaning fan; 9. a miscellaneous elevator; 10. a thresher body; 11. a kernel elevator; 12. a grain bin; 13. unloading the grain cylinder;

14. feeding an arc plate; 141. a cambered surface; 142. and connecting the flat plates.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 and 2, the threshing device of the present invention comprises two drums 4 and a feeding arc plate 14; each roller 4 comprises a feeding cone 401 and a roller shaft 402, and the feeding cone 401 is fixed at the front end of the roller shaft 402; the drum shafts 402 of the two drums 4 are arranged in parallel left and right; the feeding arc plate 14 is detachably arranged at the lower sides of the two feeding cones 401; the side of the feeding arc plate 14 facing the feeding cone 401 has an arc surface 141 for guiding the flow to each roller 4; the roller 4 is a longitudinal axial flow roller, two parallel longitudinal axial flow rollers are adopted for separation operation, and the feeding arc plate 14 is arranged on the lower side of the feeding cone 401, so that the separation device can independently perform the complete threshing process of crops without arranging an auxiliary device; meanwhile, the arc surfaces 141 of the feeding arc plate 14 corresponding to the two feeding cones 401 can uniformly guide the materials to the two rollers 4 respectively for threshing, so that the efficiency of threshing operation and the threshing quality are improved.

In the above embodiment, it is preferable that the fixed width disc 403 is detachably mounted to the rear end of the drum shaft 402; at least one bar tooth element 404 is detachably arranged between the fixed width disc 403 and the feeding cone 401, and the bar tooth element 404 is parallel to the roller shaft 402; it is further preferred that the bar engaging members 404 of the present invention are a plurality of bars, and the plurality of bar engaging members 404 are arranged around the drum shaft 402 at regular intervals around the drum shaft 402 with the drum shaft 402 as an axis, thereby forming an open drum wall; by providing a plurality of removable bar teeth 404, the diameter of the drum 4 can be adjusted, enabling it to be used for different crops or different threshing operations.

In the above embodiment, it is preferable that the rod engaging member 404 has at least two segments, each segment of the rod engaging member 404 is detachably connected to the connecting plate 405, and the connecting plate 405 is fixed to the drum shaft 402; each section of the rod tooth assembly 404 can be detached, so that the threshing device can be provided with different types of rod tooth assemblies 404 according to different types of crops, and the threshing device can be more suitable for the characteristics of different crops, thereby further improving the threshing efficiency and the threshing quality.

In the above embodiment, the rod engaging member 404 may preferably have two, three or four segments; because the stalk length, the grain size and the like of the crops are different, the number of the sections of the stalk tooth assembly 404 can be set by combining the characteristics of the crops, so that the threshing device has wide applicability.

Further preferably, the rod engaging member 404 is three segments, which are used for threshing, separating and discharging grass in sequence from the feeding cone 401 to the fixed breadth disc 403, and the length of the rod engaging members 404 in the three segments is equal; the use of three sections of the straw engaging members 404 allows the crop to be sequentially threshed, separated and weed-removed without the need for other auxiliary devices to remove grass.

In the above embodiment, preferably, the rod engaging member 404 includes threshing rods and threshing teeth, each threshing rod is fixed with a plurality of threshing teeth at even intervals, and each threshing tooth extends along the radial direction of the threshing rod; when the rod engaging member 404 is segmented, specifically, threshing rod segmentation, the threshing teeth are still uniformly distributed on each segment of threshing rod; when the roller 4 rotates, the threshing rod drives the crops to rotate, and the threshing teeth can thresh.

As shown in fig. 1, in the above embodiment, preferably, each segment of the rod-tooth assembly 404 includes a threshing rod and threshing teeth, two ends of the threshing rod are respectively fixedly provided with a rod-tooth connecting piece 4041, and the rod-tooth connecting piece 4041 is provided with a plurality of sets of rod-tooth mounting holes; a plurality of threshing teeth are uniformly fixed on the threshing rod at intervals, the threshing teeth extend along the radial direction of the threshing rod, and an included angle is formed between the axis of each threshing tooth and the drum shaft 402; the angle between the axis of threshing teeth and the drum shaft 402 is different at the mounting position of the threshing rod corresponding to each group of rod tooth mounting hole. During adjustment, the threshing rod is detached and rotated, so that the included angle between the axis of the threshing teeth and the drum shaft 402 is adjusted to a required angle, and then the rod tooth mounting hole corresponding to the position is fixed on the fixed breadth disc 403 or the connecting disc 405 through a bolt and a nut; in the adjusting process, the fixed positions of the two ends of the threshing rod are not changed, and only the mounting holes for fixing are changed; the included angle between the axis of the threshing teeth and the roller shaft is adjusted by rotating the threshing rod, so that the threshing teeth of the roller can adapt to different crops and threshing conditions, and the applicability of the roller is wider.

In the above embodiment, the threshing rod may be a rod with a smooth surface, or may be a threaded rod, and the threaded rod is preferably a threaded rod; the threshing teeth may also be threshing elements having a particular shape, such as helical teeth, conical teeth, etc.

In the above embodiment, preferably, the feeding cone 401 is provided with a spiral feeding blade; when the roller 4 rolls, the feeding cone 401 is driven to rotate, the spiral feeding blade on the feeding cone 401 can drive crops to enter the roller 4 and carry out spiral motion along the roller 4, and threshing is realized under the action of threshing teeth.

In the above embodiment, preferably, the two rollers 4 rotate in opposite directions, namely clockwise and counterclockwise; the rotation directions of the two rollers 4 are set to be opposite directions, so that the crops positioned between the two rollers 4 can be further threshed under the rotation of the two rollers, and the problem of poor threshing effect caused by mutual transfer of the crops of the two rollers 4 can be prevented.

In the above embodiment, preferably, the rear end edge of the feeding arc plate 14 is arc-shaped; the front end of the feeding arc plate 14 is provided with a connecting flat plate 142, the connecting flat plate 142 is fixedly connected with the arc surface 141, and the arc surface 141 is divided into a plurality of sections; the curved edge can be connected with a concave sieve 5 arranged at the lower side of the two drums 4, and the connecting plate 142 can be connected with a gap bridge 2 located at the front part of the threshing device.

In the above embodiment, preferably, the front dimension of each arc surface 141 of the feeding arc plate 14 is greater than or equal to the rear dimension; when the diameter is gradually reduced, the diameter of the cambered surface 141 corresponding to each feeding cone 401 is gradually reduced, so that the flow guiding effect on the crops can be further improved, and the crops can more easily enter the roller 4.

In the above embodiment, preferably, an arc transition connection structure is provided between the two arc surfaces 141 of the feeding arc plate 14 and between the connection flat plates 142; the arc transition connection structure can form separation between the two feeding cones 401, so that crops are separated when entering the two rollers 4, and the problems of feeding faults and the like caused by mutual influence in the entering process are prevented.

In the above embodiment, preferably, the feeding arc plate 14 may be integrally formed, or may be welded after being manufactured in segments; when the segments are manufactured, as shown in fig. 3, the segments are divided into three segments.

The working process of the threshing device provided by the utility model is as follows:

the crop enters the roller 4 along with the rotation of the feeding cone 401 under the matching of the feeding arc plate 14 and the feeding cone 401. The two rollers 4 rotate respectively in the anticlockwise direction and the clockwise direction, crops in each roller 4 spirally rotate towards the fixed breadth disc 403 along the rolling tangential direction, and threshing operation is carried out under the action of the rod tooth elements 404 of the rollers 4; the threshed seeds fall from the open drum wall and are continuously screened or collected, and the crop straws continuously rotate towards the fixed width disc 403 and are discharged out of the drum 4.

As shown in fig. 4, the harvester of the utility model comprises the threshing device, and further comprises a header 1, a gap bridge 2, a roller cover 3, a concave sieve 5, a chopping and grass discharging device 6, a cleaning device 7, a cleaning fan 8, a sundry residue elevator 9, a threshing machine body 10, a grain elevator 11, a grain tank 12 and a grain unloading cylinder 13.

The header 1 is arranged at the front part of the threshing machine body 10 and is communicated with a threshing device in the threshing machine body 10 through a gap bridge 2, and the harvested crops are fed into the threshing device. The threshing device also comprises a roller cover 3 and a concave sieve 5, the roller cover 3 is fixed above the concave sieve 5, a roller 4 is rotatably arranged in a threshing cavity enclosed by the roller cover 3 and the concave sieve 5, and the crops are threshed in the threshing cavity.

The rear end of the threshing device is communicated with the chopping and straw discharging device 6, and the threshed straws are discharged from the rear end of the threshing device and chopped or pushed backwards by the chopping and straw discharging device 6; the threshed grains fall to a cleaning device 7 below through a concave plate sieve 5.

The vibrating screen in the cleaning device 7 further cleans the grains, the cleaning fan 8 supplies air to the vibrating screen, the sundries and the grains are separated under the action of the vibrating screen and the cleaning fan 8, and the sundries are discharged from the rear end of the cleaning device 7 under the blowing of the cleaning fan 8; the seeds still containing impurities fall into an impurity elevator 9 from the rear part of the cleaning device 7, and the impurity elevator 9 sends the part of seeds back to the threshing device from the roller cover 3 for secondary threshing; after being screened by the cleaning device 7, clean grains are lifted to a grain tank 12 from the front end of the cleaning device 7 through a grain elevator 11, and the grain tank 12 can discharge grains through a grain discharging barrel 13 after being filled with the grains.

In the description of the present invention, it should be noted that the terms "length", "width", "upper", "lower", "front", "rear", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and the like indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A threshing device, which is characterized by comprising two rollers (4) and a feeding arc plate (14);

each roller (4) comprises a feeding cone (401), a roller shaft (402) and a roller wall surrounding the roller shaft (402), the feeding cone (401) is fixed at the front end of the roller shaft (402), and the roller wall is connected with the feeding cone (401);

the roller shafts (402) of the two rollers (4) are parallel to each other and arranged side by side left and right;

the feeding arc plate (14) is detachably arranged at the lower sides of the two feeding cones (401); the feeding arc plate (14) is provided with two arc surfaces (141) which respectively guide the flow to the two rollers (4).

2. The threshing apparatus of claim 1, wherein the drum wall is a plurality of bar teeth (404), and the other end of the drum shaft (402) is detachably mounted with a fixed width disc (403);

a plurality of the bar engaging members (404) are detachably mounted between the fixed web disc (403) and the feed cone (401), and each bar engaging member (404) is parallel to the drum shaft (402).

3. Threshing device according to claim 2, characterized in that at least one connecting disc (405) is fixedly connected to the drum shaft (402), and the bar engaging member (404) is divided into at least two sections, which are detachably mounted between the feed cone (401) and the adjacent connecting disc (405), between the fixed width disc (403) and the adjacent connecting disc (405), or between two adjacent connecting discs (405), respectively.

4. The threshing apparatus of claim 3, wherein each of the threshing teeth (404) comprises a threshing rod and threshing teeth, the threshing rod is fixedly provided with a rod-tooth connecting piece (4041) at each end, and the rod-tooth connecting piece (4041) is provided with a plurality of rod-tooth mounting holes;

a plurality of threshing teeth are uniformly fixed on the threshing rod at intervals, the threshing teeth extend along the radial direction of the threshing rod, and an included angle is formed between the axis of each threshing tooth and the drum shaft (402);

the angle between the axis of the threshing teeth and the drum shaft (402) is different at the mounting position of the threshing rod corresponding to each group of rod tooth mounting holes.

5. Threshing apparatus according to claim 1, characterised in that the feeder cone (401) is provided with helical feeder blades.

6. Threshing device according to claim 1, characterized in that the two drums (4) are rotated in opposite directions.

7. Threshing apparatus according to any of claims 1-6, characterized in that the front end of the feeding arc plate (14) is provided with a connecting plate (142), and the rear end of the connecting plate (142) overlaps the two arc surfaces (141).

8. Threshing device according to claim 7, characterized in that the front dimension of each of said curved surfaces (141) is greater than or equal to the rear dimension.

9. Threshing device according to claim 8, characterized in that an arc-shaped transitional connection structure is provided between the two arc-shaped surfaces (141) of the feeding arc-shaped plate (14) and the connection flat plate (142).

10. A harvester, characterized in that it comprises a threshing device according to any of claims 1-9.

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