CN219938976U - Harvester - Google Patents

Abstract

The utility model relates to the field of agricultural machinery, in particular to a harvester. The harvester comprises a frame, a feeding accelerating roller, a feeding port, a threshing concave assembly, a discharging device, a roller transmission mechanism, a roller mounting frame, a guide cover, a single longitudinal axial flow threshing separation roller and an upper shield; the feeding accelerating roller, the threshing concave assembly, the feeding port, the discharging device, the roller mounting frame, the air guide sleeve, the single longitudinal axial flow threshing separation roller and the upper shield are all arranged on the frame; the feeding accelerating roller is arranged at one end of the single longitudinal axial flow threshing and separating roller through the feeding inlet, and the discharging device is arranged at the other end; the threshing concave assembly is arranged below the threshing separation roller with a single longitudinal axis flow; the single longitudinal axial flow threshing separation roller is arranged in the frame through a roller mounting frame; the single longitudinal axis flow threshing separation roller is provided with a guide cover, an upper shield and a roller transmission mechanism. The utility model ensures that the feeding of materials is smoother, and reduces the risk of blockage; the harvesting effect is improved, the grain crushing rate is reduced, and the method has very wide popularization and application prospects.

Description

Harvester

Technical Field

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

Background

The grain harvester can simultaneously complete the operations of harvesting, threshing, separating, cleaning, unloading and conveying the grains and finally obtain clean grains in the mechanical operation process, and is widely applied to modern agriculture.

The grain threshing and separating device is one of the core components of the grain harvesting machine, and directly affects the performance of the whole machine. The threshing and separating device can be divided into tangential flow type and axial flow type according to the flow direction of crops along the threshing cylinder.

The tangential flow type threshing separation device and the axial flow type threshing separation device are two different structural types, and each threshing separation device has corresponding advantages and disadvantages and application ranges. The traditional tangential threshing device is suitable for harvesting wheat, rice, sorghum and other wheat crops; the vertical axial flow threshing device combines threshing and separating devices into a whole, gu Wuliu makes spiral motion in a threshing space during threshing, threshing is soft and long in time, threshing and separating are complete, and the threshing and separating device is superior to a tangential flow device in terms of various indexes such as threshing rate, separating rate and breaking rate, so that the vertical axial flow threshing device is widely applied to actual production.

The longitudinal axial flow threshing and separating device in the prior art is mainly applied to a large-feeding-amount harvester and is mainly used in a single longitudinal axial flow mode, the most main problem in the use of the machine is that dead zones exist on two sides of a feeding port at the front end of a threshing cylinder, cereal straw blockage can easily occur due to poor design of screw blades at the front section of the threshing cylinder, the phenomenon that the cylinder is not rotated, and a conveying harrow rod or a cylinder transmission system of a feeding bridge can be easily damaged. When corn is harvested, corn ears can be cut off when the screw blades at the front section of the roller grab materials and the bottom of the feeding inlet, so that the breakage rate of the corn kernels after harvesting is higher.

Disclosure of Invention

The utility model aims to provide a harvester which can solve the technical problems.

Embodiments of the present utility model are implemented as follows:

the utility model provides a harvester, which comprises a frame, a feeding accelerating roller, a feeding port, a threshing concave assembly, a discharging device, a roller transmission mechanism, a roller mounting frame, a guide cover, a single longitudinal axial flow threshing separation roller and an upper shield, wherein the feeding accelerating roller is arranged on the frame;

the feeding accelerating roller, the feeding port, the threshing concave assembly, the discharging device, the roller mounting frame, the air guide sleeve and the upper shield of the single longitudinal axial flow threshing and separating roller are all arranged on the frame;

the feeding accelerating roller is arranged at one end of the single-longitudinal axis flow threshing and separating roller, the feeding inlet is arranged between the feeding accelerating roller and the single-longitudinal axis flow threshing and separating roller, and the discharging device is arranged at the other end of the single-longitudinal axis flow threshing and separating roller;

the threshing concave assembly is arranged below the single longitudinal axial flow threshing separation roller;

the single longitudinal axial flow threshing and separating roller is arranged in the frame through the roller mounting frame;

the single longitudinal axial flow threshing and separating roller is provided with the air guide sleeve and the upper shield;

the end part of the single longitudinal axial flow threshing and separating roller is provided with the roller transmission mechanism.

In an alternative embodiment, the feeding accelerating roller comprises a first mounting seat, a rotating shaft, a mounting hub and a tooth poking plate;

the rotating shaft is arranged on the frame, the mounting hub is arranged on the rotating shaft through the first mounting seat, and the tooth shifting plate is arranged on the outer wall of the mounting hub.

In an alternative embodiment, the end of the rotating shaft is provided with a transmission mechanism for connecting a power device.

In an alternative embodiment, the poking teeth are arranged on the poking teeth plate.

In an alternative embodiment, the single longitudinal axial flow threshing separation cylinder comprises a cylinder body, a support shaft, guide vanes, a threshing structure and a connecting support;

the supporting shaft is arranged at one end of the roller body, the connecting support is arranged at the other end of the roller body, and the roller body is connected with the roller transmission mechanism through the connecting support;

the guide vane is arranged on the outer wall of one end of the roller body, which is close to the supporting shaft, and the threshing structure is arranged on the outer wall of one end of the roller body, which is close to the connecting support.

In an alternative embodiment, the threshing structure comprises threshing bars and threshing spike teeth;

the threshing spike teeth are arranged at one end close to the connecting support, and the threshing rasp bar is arranged at one end close to the guide vane.

In an alternative embodiment, the threshing concave assembly comprises a concave main frame, a concave body and a gap adjusting mechanism;

the concave plate body is arranged on the concave plate main frame to form a screen;

the concave main frame is connected with the frame through the gap adjusting mechanism, and the gap adjusting mechanism is used for adjusting a gap between the concave main frame and the single longitudinal axial flow threshing separation roller.

In an alternative embodiment, the lash adjustment mechanism includes at least one of a threaded screw and a worm structure.

In an alternative embodiment, the discharge device comprises a discharge rack, a discharge recess plate and a discharge roller;

the discharging frame is arranged on the frame, the discharging roller is rotatably arranged on the frame, and the discharging concave plate is arranged on the frame and below the discharging roller.

In an alternative embodiment, the device further comprises a striker plate;

the striker plate is arranged above the feeding accelerating roller.

The embodiment of the utility model has the beneficial effects that:

by adding the feeding accelerating roller at the front section of the single-longitudinal axis flow threshing and separating roller, the feeding is more uniform when materials enter the single-longitudinal axis flow threshing and separating roller, the feeding is smoother, and the blocking risk is reduced; the threshing grain is threshed in advance, the harvesting effect is improved, the grain breakage rate is reduced, and the threshing grain threshing machine has very wide popularization and application prospects.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a side view of a harvester according to an embodiment of the utility model;

FIG. 2 is a top view of a harvester according to an embodiment of the utility model;

FIG. 3 is a left side view of a feed accelerator roller of a harvester according to an embodiment of the utility model;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a schematic view of an assembly of a single longitudinal axial flow threshing and separating drum of a harvester according to an embodiment of the utility model;

FIG. 6 is an assembled schematic view of a front end recess plate body of a harvester according to an embodiment of the utility model;

FIG. 7 is a sectional view B-B of FIG. 6;

FIG. 8 is a front view of a front end recess plate body of a harvester according to an embodiment of the utility model;

FIG. 9 is a front view of a rear recess plate body of a harvester according to an embodiment of the utility model;

FIG. 10 is a side view of a rear recess plate body of a harvester according to an embodiment of the utility model;

FIG. 11 is a front view of a discharge device of a harvester according to an embodiment of the utility model;

FIG. 12 is a side view of a discharge device of a harvester according to an embodiment of the utility model;

FIG. 13 is a front view of a rolling drive mechanism of a harvester according to an embodiment of the utility model;

FIG. 14 is a side view of a rolling drive mechanism of a harvester according to an embodiment of the utility model;

FIG. 15 is a front view of a discharge roller of a harvester according to an embodiment of the utility model;

FIG. 16 is a cross-sectional view of C-C of FIG. 15;

FIG. 17 is a front view of a rear mounting bracket of a harvester according to an embodiment of the utility model;

FIG. 18 is a side view of a mounting bracket for a harvester according to an embodiment of the utility model;

FIG. 19 is a front view of a pod of a harvester according to an embodiment of the utility model;

FIG. 20 is a top view of a pod of a harvester according to an embodiment of the utility model;

FIG. 21 is a side view of a pod of a harvester according to an embodiment of the utility model;

FIG. 22 is a front view of an upper shroud of a harvester according to an embodiment of the utility model;

FIG. 23 is a side view of an upper shroud of a harvester according to an embodiment of the utility model;

FIG. 24 is a front view of a rear discharge recess plate of a harvester according to an embodiment of the utility model;

fig. 25 is a side view of a rear discharge recess plate of a harvester according to an embodiment of the utility model.

Icon: 1-a frame; 2-feeding an accelerating roller; 3-feeding port; 4-front end concave plate assembly; 5-a rear concave assembly; 6-a discharging device; 7-a discharging concave plate; 8-a discharge roller; 9-a roller transmission mechanism; 10-a transmission belt; 11-a rear mounting rack; 12-a diversion cover; 13-a single longitudinal axial flow threshing and separating drum; 14-front mounting rack; 15-a roller bearing; 16-a striker plate; 17-an upper shield; 18-mounting a seat plate; 19-a nut; 20-reinforcing plates; 21-a tooth plate; 22-a second fixing bolt; 23-a first fixing bolt; 24-rotating shaft; 25-bearing seats; 26-a first mount; 27-a second mount; 28-a pulley; 29-half round key; 30-washers; 31-locking nut; 32-flat keys; 33-a support shaft; 34-guide vanes; 35-a blade support; 36-first rasp bar; 37-second rasp bar; 38-a third rasp bar; 39-threshing spike teeth; 40-a roller body; 41-connecting a support; 42-a third fixing bolt; 43-front end support plate; 44-front concave body; 45-transmission assembly; 46-pin shafts; 47-an adjustment assembly; 48-a rear end support plate; 49-a power assembly; 50-backlash adjustment shaft assembly; 51-a latch assembly; 52-a rear recess plate body; 53-left side fixing plate; 54-a rear end discharge port; 55-a material guide plate; 56-a sensor mount; 57-impurity removal sensor; 58-right side fixing plate; 59-outputting a spline shaft; 60-a transmission case; 61-a first pulley assembly; 62-a shift handle; 63-a discharge shaft; 64-a second pulley assembly; 65-left discharging bracket; 66-a roller bracket; 67-right discharge bracket; 68-a first-level cover body; 69-a secondary cover; 70-three-stage cover body; 71-a frame; 72, a flow guiding strip; 73-access cover.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Some embodiments of the present utility model are described in detail below with reference to fig. 1 to 25. The following embodiments and features of the embodiments may be combined with each other without conflict.

The utility model provides a harvester, as shown in figures 1 and 2, which comprises a frame 1, a feeding accelerating roller 2, a feeding port 3, a threshing concave assembly, a discharging device 6, a roller transmission mechanism 9, a roller mounting frame, a guide cover 12, a single longitudinal axial flow threshing separation roller 13 and an upper shield 17; the feeding accelerating roller 2, the threshing concave assembly, the discharging device 6, the roller mounting frame, the air guide sleeve 12 and the upper shield 17 of the single longitudinal axial flow threshing and separating roller 13 are all arranged on the frame 1; the feeding accelerating roller 2 is arranged at one end of the single-longitudinal axis flow threshing and separating roller 13, and the discharging device 6 is arranged at the other end of the single-longitudinal axis flow threshing and separating roller 13; the threshing concave assembly is arranged below the single longitudinal axial flow threshing separation roller 13; the single longitudinal axial flow threshing and separating roller 13 is arranged on the frame 1 through a roller mounting frame; a guide cover 12 and an upper shield 17 are arranged on the single longitudinal axial flow threshing and separating drum 13; the end of the single longitudinal axial flow threshing and separating roller 13 is provided with a roller transmission mechanism 9.

In this embodiment, the raw material (hereinafter, the grain ears or the grain stalks are exemplified) is forcibly fed into the single longitudinal axial flow threshing separation drum 13 by the feeding acceleration roller 2, and the feeding is more uniform and smooth, so that the risk of blockage can be effectively reduced.

Specifically, in this embodiment, the grain clusters enter the feeding accelerating roller 2 at the front end of the harvester through the bridge conveying chain harrow, after being split by the feeding accelerating roller 2, the grain clusters uniformly enter the single-longitudinal axis flow threshing and separating roller 13, are impacted by the threshing structure on the outer wall of the single-longitudinal axis flow threshing and separating roller 13, the threshing purpose is achieved, the threshed grain clusters are discharged through the discharging device 6, and the threshed grain kernels leak to the lower side through the threshing concave plate assembly, and are subjected to cleaning and separation.

More specifically, in the present embodiment, the drum mounting frame is provided on the frame 1, and the single longitudinal axis flow threshing separation drum 13 is provided on the drum mounting frame, so that the single longitudinal axis flow threshing separation drum 13 can be supported so that the single longitudinal axis flow threshing separation drum 13 rotates with respect to the frame 1.

More specifically, in the present embodiment, the drum mounting includes a front mounting 14 and a rear mounting 11. The rear mounting frame 11 includes a left discharge bracket 65, a right discharge bracket 67, and a drum bracket 66, as shown in fig. 17 and 18.

In this embodiment, the frame 1 is further provided with a guide cover 12 and an upper shield 17.

Specifically, as shown in fig. 19, 20 and 21, the air guide sleeve 12 includes an air guide frame 71, a primary sleeve 68, a secondary sleeve 69, a tertiary sleeve 70, an access cover 73 and an air guide strip 72; the guide frame 71 is arranged on the frame 1, the primary cover 68, the secondary cover 69 and the tertiary cover 70 are all arranged on the guide frame 71, the primary cover 68, the secondary cover 69 and the tertiary cover 70 are sequentially connected from the front end to the rear end, the diameter or the height of the primary cover 68, the secondary cover 69 and the tertiary cover 70 are sequentially increased, and the access cover 73 is arranged at one end of the tertiary cover 70, which is far away from the secondary cover 69; the inner walls of the primary 68, secondary 69 and tertiary 70 hoods are provided with deflector strips 72 for deflector the cereal ears, which can move from front to back.

Specifically, as shown in fig. 22 and 23, the upper shield 17 includes a shield plate and a mounting frame 71, the shield plate is provided on the frame 1 through the mounting frame 71, and the shield plate is provided above the feeding accelerator roller 2 for protecting the feeding accelerator roller 2 from above.

In this embodiment, the roller drive mechanism 9 is provided on a roller mount, as shown in fig. 13 and 14, which includes an output spline shaft 59, a transmission case 60, a first pulley assembly 61, and a shift handle 62. Wherein, the output spline shaft 59 is connected with the single longitudinal axial flow threshing and separating roller 13 and drives the single longitudinal axial flow threshing and separating roller 13 to rotate; a speed change gear set is arranged in the transmission box 60, and the rotating speed of the output spline shaft 59 can be changed through a gear change handle 62; the first pulley assembly 61 is connected to the input shaft of the transmission housing 60 to transmit the power of the power unit to the single longitudinal axis flow threshing and separating drum 13 so that threshing can be performed.

In an alternative embodiment, as shown in fig. 3 and 4, the feeding accelerator roller 2 includes a first mount 26, a rotation shaft 24, a mount hub, and a pinion 21; the rotation shaft 24 is provided on the frame 1, the mounting hub is provided on the rotation shaft 24 through the first mounting seat 26, and the pinion 21 is provided on the outer wall of the mounting hub.

Specifically, in this embodiment, the feed accelerator roller 2 is used to feed the ears of grain into a single longitudinal axis flow threshing cylinder 13.

More specifically, the mounting hub is connected to the rotating shaft 24 through the first mounting base 26, and the pinion 21 is provided on the mounting hub to form a single body.

The first mounting seat 26 and the mounting hub jointly rotate around the rotating shaft 24, so that the toothed plate 21 is driven to rotate around the rotating shaft 24, and the effect of forced feeding of cereal ears is achieved.

More specifically, in the present embodiment, the length of the mounting hub is longer, and the first mounting seats 26 are respectively disposed at two ends of the mounting hub, so as to support the mounting hub. In order to further ensure the stability and balance of the installation hub, a second installation seat 27 is arranged between the two first installation seats 26, and the second installation seat 27 is connected with the installation hub and the rotating shaft 24 to further support the installation hub, so that the stability and balance of the installation hub on the rotating shaft 24 are improved.

More specifically, in the present embodiment, the mounting boss is fixedly connected to the first mount 26 and the second mount 27 by the first fixing bolt 23.

It should be noted that the connection between the mounting hub and the first mounting seat 26 and the second mounting seat 27 may be a fixed connection by the first fixing bolt 23, but is not limited to the first fixing bolt 23, and may be other fixed connection, such as welding, etc., that is, as long as the mounting hub can be fixed to the first mounting seat 26 or the second mounting seat 27.

In this embodiment, when the installation hub rotates relative to the rotation shaft 24, the bearing seat 25 is disposed on the first installation seat 26 or the installation hub, and the rotation shaft 24 bearing is disposed on the bearing seat 25, and the inner ring of the rotation shaft 24 bearing is connected with the rotation shaft 24, so that the installation hub rotates more stably.

In this embodiment, when the rotating shaft 24 drives the installation hub to rotate on the frame 1, the bearing seat 25 is disposed on the frame 1, and the rotating shaft 24 is connected with the bearing seat 25 through the rotating shaft 24, so that the rotating shaft 24 can rotate stably relative to the frame 1, thereby driving the installation hub and the tooth pulling plate 21 to rotate, and realizing forced feeding of cereal ears.

In an alternative embodiment, the end of the rotating shaft 24 is provided with a transmission mechanism for connecting the power means.

In this embodiment, the power device drives the rotation shaft 24 or the first mounting seat 26 or the mounting hub through the transmission mechanism to rotate around the central axis of the rotation shaft 24.

Specifically, in this embodiment, the transmission mechanism is a belt transmission structure.

More specifically, in this embodiment, the end of the rotation shaft 24 is provided with a key slot, in which a flat key 32 is disposed, and the flat key 32 connects the rotation shaft 24 with the first mounting seat 26, so that when the power device drives the rotation shaft 24 to rotate through the belt transmission mechanism, the first mounting seat 26 can synchronously rotate along with the rotation shaft 24, and further drives the mounting hub and the pinion rack 21 to rotate.

In the present embodiment, the pulley 28 in the second pulley assembly 64 is disposed at the end of the rotating shaft 24 by the lock nut 31, and the washer 30 is disposed between the lock nut 31 and the rotating shaft 24, which protects the rotating shaft 24 and can play a certain role in stopping the pulley 28.

In this embodiment, the pulley 28 and the rotating shaft 24 are limited by a half-round key 29, so that the pulley 28 can drive the rotating shaft 24 to rotate.

In an alternative embodiment, the shifting plate 21 is provided with shifting teeth.

In the present embodiment, the tooth plate 21 is a wear plate.

In this embodiment, the poking teeth are disposed at the outer end of the poking tooth plate 21, and can be inserted between the cereal ears, so as to drive the cereal ears to perform forced feeding.

In the present embodiment, as shown in fig. 3, a pinion plate 21 is provided on the mounting hub through a mounting seat plate 18.

Specifically, in the present embodiment, the mounting seat plate 18 is fixedly provided on the mounting hub by the first fixing bolts 23, and the tooth plate 21 is fixedly provided on the mounting seat plate 18 by the second fixing bolts 22.

More specifically, in this embodiment, through holes are formed in the tooth-pulling plate 21, corresponding through holes are also formed in the mounting seat plate 18, and the second fixing bolts 22 penetrate through the through holes in the tooth-pulling plate 21 and the mounting seat plate 18 and then are screwed with the fixing nuts 19, so that the tooth-pulling plate 21 and the mounting seat plate 18 are fixed.

More specifically, in the present embodiment, a reinforcing plate 20 is provided between the dial plate 21 and the mounting seat plate 18.

In the present embodiment, the first fixing bolt 23 is a hexagon head fixing bolt, and the second fixing bolt 22 is a round head fixing bolt.

In an alternative embodiment, as shown in fig. 5, the single longitudinal axis flow threshing separation cylinder 13 includes a cylinder body 40, a support shaft 33, guide vanes 34, a threshing structure, and a connecting support 41; the supporting shaft 33 is arranged at one end of the roller body 40, the connecting support 41 is arranged at the other end of the roller body 40, and the roller body 40 is connected with the roller transmission mechanism 9 through the connecting support 41; the guide vane 34 is disposed on an outer wall of one end of the drum body 40 near the support shaft 33, and the threshing structure is disposed on an outer wall of one end of the drum body 40 near the connection support 41.

In this embodiment, the front and rear ends of the drum body 40 are configured differently, and the diameter of the front end is relatively small, so that the grain ears fed from the feeding acceleration roller 2 can be easily introduced into the working space of the single longitudinal axis flow threshing separation drum 13.

Specifically, in the present embodiment, the outer wall of the front end of the drum body 40 is provided with the guide vane 34, and the guide vane 34 is fixed on the drum body 40 through the vane support seat 35, so as to guide the grain ears entering the working space to the rear end; the rear end of the drum body 40 is provided with a threshing structure for threshing the grain ears.

More specifically, in the present embodiment, the guide vane 34 is spirally disposed, and the spiral direction thereof is the feeding direction of the material.

In this embodiment, both ends of the drum body 40 are rotatably connected to the frame 1.

Wherein, the front end of the roller body 40 is rotationally connected with the frame 1 through a supporting shaft 33; the rear end of the drum body 40 is rotatably connected with the frame 1 through a connection support 41.

Specifically, in the present embodiment, the connection bracket 41 is connected to the drum body 40 by the third fixing bolt 42.

In an alternative embodiment, the threshing structure comprises threshing bars and threshing spike teeth 39; threshing pin 39 is disposed at one end near the connection support 41 and threshing bar is disposed at one end near the guide vane 34.

Specifically, in this embodiment, the diameter of the threshing rod is larger than the diameter of the threshing spike teeth 39, and the gap between adjacent threshing screws is larger than the gap between adjacent threshing spike teeth 39.

In the arrangement mode, in the threshing process, grading threshing can be performed, namely, first threshing is performed through threshing bars, the effect of coarse threshing is achieved, and second threshing is performed through threshing spike teeth 39, so that the threshing precision is improved.

In this embodiment, the threshing bars may be provided in various types, as shown in fig. 5, the threshing bars include a first bar 36, a second bar 37 and a third bar 38, the diameters of which are sequentially reduced from the front end to the rear end of the drum body 40, and the gaps between adjacent threshing bars are sequentially reduced from the front end to the rear end of the drum body 40, so that the threshing accuracy is sequentially improved.

In an alternative embodiment, as shown in fig. 6-10, the threshing concave assembly includes a concave main frame, a concave body, and a gap adjustment mechanism; the concave plate body is arranged on the concave plate main frame to form a screen; the concave main frame is connected with the frame 1 through a gap adjusting mechanism, and the gap adjusting mechanism is used for adjusting the gap between the concave main frame and the single longitudinal axial flow threshing separation roller 13.

In the embodiment, the threshing concave has the function of separating the threshed seeds from the threshing concave by cleaning and separating, blocking the cereal ears and the cereal straws and discharging the seeds through the discharging device 6, thereby realizing the separation of the straws and the seeds and achieving the purpose of threshing.

Specifically, in this embodiment, the threshing concave assembly includes a front concave assembly 4 and a rear concave assembly 5, which correspond to the front and rear ends of the single longitudinal axis flow threshing cylinder 13, respectively. Wherein, the clearance adjustment mechanism is connected with the front concave assembly 4 to adjust the clearance between the front concave assembly 4 and the roller body 40.

More specifically, in the present embodiment, as shown in fig. 6, 7 and 8, the front concave assembly 4 includes a front concave body 44 and front and rear support plates 43 and 48 provided at front and rear ends thereof for supporting the front concave body 44.

In this embodiment, the front concave main body 44 includes a screen plate and a connecting frame rod, and a plurality of screen plates are arranged in parallel, and are connected through the connecting frame rod to form a screen, so that seeds can leak from the screen, and a blocking effect is generated on the straw.

In an alternative embodiment, the lash adjustment mechanism includes at least one of a threaded screw and a worm structure.

Specifically, in the present embodiment, the lash adjustment mechanism includes a power train 49, an adjustment assembly 47, and a transmission assembly 45. Wherein, the adjusting assembly 47 is a threaded screw structure, and the power assembly 49 is connected with the adjusting assembly 47 through the transmission assembly 45.

In this embodiment, the threaded screw structure of the adjustment assembly 47 is rotatably connected at one end to the front concave body 44 via a pin 46 in the latch assembly 51 and at the other end to the drive assembly 45. The gap between the front concave body 44 and the drum body 40 can be adjusted by manually rotating the threaded screw when adjusted by the adjusting assembly 47.

In this embodiment, the transmission assembly 45 includes a transmission rod and a transmission member, one end of the transmission member is fixedly connected with the transmission rod, and the other end of the transmission member is rotationally connected with the adjustment assembly 47, so that the transmission rod can drive the adjustment assembly 47 to move in the up-down direction when rotating under the action of the power assembly 49, thereby achieving the purpose of greatly adjusting the gap.

That is, when the adjustment of the gap between the front concave main body 44 and the drum main body 40 is performed, the transmission assembly 45 performs the coarse adjustment, and the adjustment assembly 47 performs the fine adjustment, thereby achieving a high adjustment accuracy.

In this embodiment, the transmission assembly 45 may also be provided as a worm structure for adjusting the front-rear position of the front concave body 44.

In this embodiment, the power assembly 49 may be a motor, a hydraulic cylinder, an air cylinder, or the like, as long as it is capable of providing power to the transmission assembly 45.

In this embodiment, a backlash adjustment shaft assembly 50 is also provided for adjusting the clearance between the screen plate and the connector rail on the front concave body 44.

In an alternative embodiment, as shown in fig. 11 and 12, the discharging device 6 includes a discharging frame, a discharging concave 7, and a discharging roller 8; the discharge frame is arranged on the frame 1, the discharge roller 8 is rotatably arranged on the discharge frame through a discharge shaft 63 thereof, and the discharge concave 7 is arranged on the discharge frame and below the discharge roller 8.

In this embodiment, the discharge rack is mounted on the frame 1, in particular, connected to the left discharge rack 65 and the right discharge rack 67 in the rear mounting frame 11 of the drum mounting frame.

In the embodiment, a left fixing plate 53 and a right fixing plate 58 are arranged on the discharging frame and are used for fixedly arranging the discharging frame on the frame 1; the material discharging frame is also provided with a material guiding plate 55, and the material guiding plate 55 is spirally arranged, so that straws are conveniently guided out; the discharging frame is also provided with a discharging sensor 57 for detecting sundries, and the discharging sensor 57 is fixed on the discharging frame through a sensor support 56.

When the straws or the threshed cereal ears enter the discharging device 6 through the rear end of the single longitudinal axial flow threshing separation roller 13, the straws or the threshed cereal ears are forcedly discharged through the discharging roller 8, in the discharging process, the missed cereal ears are screened by the discharging concave plate 7 and leaked downwards to be cleaned and separated, and the straws or the cereal ears discharged through the discharging roller 8 are singly collected, so that the purpose of threshing the cereal is realized.

As shown in fig. 15 and 16, the structure of the discharging roller 8 is the same as that of the feeding accelerating roller 2, and the discharging roller can forcedly discharge the threshed straws, so that the smoothness of the whole operation is improved.

In an alternative embodiment, a striker plate 16 is also included; the dam plate 16 is disposed above the feed accelerator roller 2.

After the baffle plate 16 is arranged above the feeding accelerating roller 2, splashing of cereal clusters can be avoided, so that the cereal clusters can be forced into the working space of the single longitudinal axial flow threshing separation roller 13 through the feeding accelerating roller 2.

From the above, the working principle and the working flow of the utility model are as follows:

during operation, materials such as grain ears and grain straws enter the front end feeding accelerating roller 2 through the bridge conveying chain harrow, the materials are uniformly distributed and rolled into a working space of the single longitudinal axial flow threshing separation roller 13 from the feeding opening 3 of the roller under the action of the tooth poking plate 21 at the front end of the accelerating roller, the materials enter a roller threshing area under the action of the guide vane 34 and the guide cover 12 at the front end of the roller body 40, grains on the grain ears are threshed under the action of threshing bars, threshing spike teeth 39 and the front concave plate main body 44 of the roller threshing area, and part of grains and short grain straws enter an upper cleaning sieve through gaps on the grid of the front concave plate main body 44 for cleaning separation; the gap between the front concave main body 44 and the roller is adjustable, and different threshing concave assemblies are required to be replaced when different grains are harvested; grains mixed in the long grain straw enter a separation area of the single-longitudinal axis flow threshing separation roller 13, under the action of the rear concave plate main body 52 and the threshing spike teeth 39, the separated grains and short grain straw enter an upper cleaning sieve through gaps on grids of the rear concave plate main body 52 for cleaning separation, materials such as the long grain straw separated from the single-longitudinal axis flow threshing separation roller 13 are discharged outside a machine body through a rear discharge opening 54 under the action of a discharge roller 8 from a gap between the discharge roller 8 and a discharge concave plate 7, the front end mixed with the grains and the small straw are not separated, and enter a shaking plate below the concave plate from the gap between the grids of the discharge concave plate 7 in the discharging process, and the leaked materials are sent into the upper cleaning sieve for cleaning separation under the reciprocating action of the shaking plate; the guide cover 12 is positioned above the threshing and separating roller 13 with single longitudinal axis flow, the guide strip 72 is arranged in the guide cover 12, the angle of the guide strip 72 determines the stay time of the materials in the threshing roller, and the angles of the guide strip 72 are required to be adjusted when different grains are harvested; the rolling transmission mechanism is fixed on the rear mounting frame 11 through bolts, and the rear mounting frame 11 is connected to the frames 1 on the left side and the right side through bolts; the engine transmits power to a rolling transmission mechanism through a transmission belt 10, an output spline shaft 59 at the front end of the rolling transmission mechanism is connected with a spline housing in the connecting support 41, and the engine provides power for the rolling transmission mechanism when in operation, so that stepless speed regulation of the single longitudinal axial flow threshing and separating roller 13 is realized; the front end supporting shaft 33 of the single longitudinal axial flow threshing and separating roller 13 is provided with a roller bearing 15 which is fixed on the front mounting frame 14 by bolts, wherein the roller bearing 15 is a spherical bearing, and the left side and the right side of the front mounting frame 14 are connected with the left and the right frames 1 by bolts; the baffle plate 16 is arranged above the feeding accelerating roller 2, flows at the front end of the threshing separation roller 13 with a single longitudinal axis, and prevents materials from being reversely carried back into the bridging chain harrow when the accelerating feeding roller rotates; the upper shield 17 is fixedly arranged at the front end of the guide cover 12 by bolts, so that the guide vane 34 at the front end of the roller can prevent the material from flying randomly when being thrown out, and the material is sealed and enters the front end feeding accelerating roller 2.

The embodiment of the utility model has the beneficial effects that:

by adding the feeding accelerating roller 2 at the front section of the single-longitudinal axis flow threshing and separating roller 13, the feeding of materials is more uniform and smoother when the materials enter the single-longitudinal axis flow threshing and separating roller 13, and the blocking risk is reduced; the threshing grain is threshed in advance, the harvesting effect is improved, the grain breakage rate is reduced, and the threshing grain threshing machine has very wide popularization and application prospects.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The harvester is characterized by comprising a frame, a feeding accelerating roller, a feeding port, a threshing concave assembly, a discharging device, a roller transmission mechanism, a roller mounting frame, a guide cover, a single longitudinal axial flow threshing separation roller and an upper shield;

the feeding accelerating roller, the feeding port, the threshing concave assembly, the discharging device, the roller mounting frame, the air guide sleeve, the single longitudinal axial flow threshing separation roller and the upper shield are all arranged on the frame;

the feeding accelerating roller is arranged at one end of the single-longitudinal axis flow threshing and separating roller, the feeding inlet is arranged between the feeding accelerating roller and the single-longitudinal axis flow threshing and separating roller, and the discharging device is arranged at the other end of the single-longitudinal axis flow threshing and separating roller;

the threshing concave assembly is arranged below the single longitudinal axial flow threshing separation roller;

the single longitudinal axial flow threshing and separating roller is arranged in the frame through the roller mounting frame;

the single longitudinal axial flow threshing and separating roller is provided with the air guide sleeve and the upper shield;

the end part of the single longitudinal axial flow threshing and separating roller is provided with the roller transmission mechanism;

the air guide sleeve comprises an air guide frame, a first-stage cover body, a second-stage cover body, a third-stage cover body, an access cover and air guide strips; the guide frame is arranged on the frame, the primary cover body, the secondary cover body and the tertiary cover body are all arranged on the guide frame, the primary cover body, the secondary cover body and the tertiary cover body are sequentially connected from the front end to the rear end, the diameter or the height of the primary cover body is sequentially increased, and the access cover is arranged at one end, far away from the secondary cover body, of the tertiary cover body; the first-level cover body the second grade cover body with all be provided with the water conservancy diversion strip on the inner wall of tertiary cover body for carry out the water conservancy diversion to cereal cluster, cereal cluster can be moved by the front end to the rear end.

2. The harvester of claim 1, wherein the feed accelerator roller comprises a first mount, a rotating shaft, a mounting hub, and a pinion plate;

the rotating shaft is arranged on the frame, the mounting hub is arranged on the rotating shaft through the first mounting seat, and the tooth shifting plate is arranged on the outer wall of the mounting hub.

3. Harvester according to claim 2, characterized in that the end of the rotation shaft is provided with a transmission for connecting a power device.

4. Harvester according to claim 2, characterized in that the poking teeth are provided on the poking tooth plate.

5. The harvester of claim 1 wherein the single longitudinal axis flow threshing separation cylinder comprises a cylinder body, a support shaft, a guide vane, a threshing structure, and a connecting support;

the supporting shaft is arranged at one end of the roller body, the connecting support is arranged at the other end of the roller body, and the roller body is connected with the roller transmission mechanism through the connecting support;

the guide vane is arranged on the outer wall of one end of the roller body, which is close to the supporting shaft, and the threshing structure is arranged on the outer wall of one end of the roller body, which is close to the connecting support.

6. The harvester of claim 5, wherein the threshing structure comprises threshing bars and threshing spikes;

the threshing spike teeth are arranged at one end close to the connecting support, and the threshing rasp bar is arranged at one end close to the guide vane.

7. The harvester of claim 1 wherein the threshing concave assembly comprises a concave main frame, a concave body, and a gap adjustment mechanism;

the concave plate body is arranged on the concave plate main frame to form a screen;

the concave main frame is connected with the frame through the gap adjusting mechanism, and the gap adjusting mechanism is used for adjusting a gap between the concave main frame and the single longitudinal axial flow threshing separation roller.

8. The harvester of claim 7, wherein the gap adjustment mechanism comprises at least one of a threaded screw and a worm structure.

9. The harvester of claim 1, wherein the discharge device comprises a discharge rack, a discharge recess plate, and a discharge roller;

the discharging frame is arranged on the frame, the discharging roller is rotatably arranged on the frame, and the discharging concave plate is arranged on the frame and below the discharging roller.

10. The harvester of claim 1, further comprising a striker plate;

the striker plate is arranged above the feeding accelerating roller.