Threshing concave plate and threshing separation system of harvester

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a threshing concave plate and a threshing separation system of a harvester. The threshing concave plate comprises a first concave plate, a second concave plate, a first adjusting device and a second adjusting device; the first concave plate is hinged to the second concave plate; the first adjusting device is connected with the first concave plate and used for adjusting the gap between the first concave plate and the flow cutting roller and the gap between the second concave plate and the acceleration roller. The second adjusting device is connected with the second concave plate and used for adjusting the gap between the second concave plate and the acceleration roller. According to the threshing concave plate, the first concave plate and the second concave plate are arranged and correspond to the tangential flow roller and the acceleration roller respectively, so that the adaptability of the threshing concave plate is improved, and the working capacity can be better improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a threshing concave plate and a harvester threshing and separation system. Background Art

[0002] In a harvester threshing and separation system with an acceleration roller, when there is only one threshing concave plate, the threshing and separation capabilities are limited, and the distance between the acceleration roller and the separation concave plate cannot be adjusted. Its adaptability is limited and the operating capacity cannot be improved more effectively. Utility Model Content

[0003] The purpose of the utility model is to provide a threshing concave plate, which can solve the above technical problems.

[0004] The embodiment of the present utility model is achieved as follows:

[0005] In a first aspect, the utility model provides a threshing concave plate, comprising a first concave plate, a second concave plate, a first adjusting device and a second adjusting device;

[0006] The first concave plate and the second concave plate are hinged;

[0007] The first adjusting device is connected to the first concave plate and is used to adjust the gap between the first concave plate and the flow cutting roller, and the gap between the second concave plate and the acceleration roller;

[0008] The second adjusting device is connected to the second concave plate and is used to adjust the gap between the second concave plate and the acceleration roller.

[0009] In an optional embodiment, the first concave plate includes a first frame and a plurality of bars;

[0010] The bars are arranged on the first frame to form a grid structure.

[0011] In an optional embodiment, the second concave plate includes a second frame, a welded grid and a pressing plate;

[0012] The welded grid is arranged on the second frame, and the pressing plate is used to fix the welded grid on the second frame.

[0013] In an optional embodiment, the welded mesh grid includes a front beam, a rear beam, side plates, a transverse partition and bars;

[0014] Both ends of the front beam and the rear beam are connected to form a frame structure through the side plates;

[0015] The two ends of the transverse partition are connected to the two side panels, and the transverse partition is arranged parallel to the front beam and the rear beam;

[0016] Two ends of the grating are connected to the front beam and the rear beam, and the grating is arranged parallel to the side plate.

[0017] In an optional embodiment, a disassembly notch is provided on the front beam.

[0018] In an optional embodiment, the second frame includes a crossbeam, a left end plate, a right end plate, a support plate, a separation plate, a threshing partition and a first limit plate;

[0019] One end of the left end plate and one end of the right end plate are respectively arranged at two ends of the crossbeam, and the other end of the left end plate and the other end of the right end plate are respectively arranged at two ends of the threshing partition to form a frame structure;

[0020] Two ends of the first limiting plate are respectively connected to the left end plate and the right end plate, and the first limiting plate is parallel to the crossbeam;

[0021] The support plate connects the crossbeam and the first limiting plate, and a plurality of support plates are arranged in parallel.

[0022] In an optional embodiment, the left end plate includes a front plate and a rear plate, and the front plate and the rear plate are on the same plane and have a set angle.

[0023] In an optional embodiment, the second regulating device includes a power device and a second transmission structure;

[0024] The power device is connected to the second concave plate via the second transmission structure;

[0025] The second concave plate is provided with a sliding groove, the first concave plate is provided with a sliding rod, and the sliding rod is slidably provided in the sliding groove.

[0026] In an optional embodiment, the first adjustment device includes a handle, a mounting seat, a rotating arm, a tooth plate, a clamping plate, a second limiting plate and a first transmission structure;

[0027] One end of the tooth plate is fixedly connected to the mounting seat, and is used for being fixedly arranged by the mounting seat;

[0028] The second limiting plate is fixedly arranged on the handle, and a limiting channel is formed between the second limiting plate and the handle, and the other end of the tooth plate is arranged through the limiting channel;

[0029] The rotating arm is fixedly connected to one end of the handle, and the first transmission structure is connected to the rotating arm;

[0030] The clamping plate is rotatably arranged on the handle and can enter between the teeth of the tooth plate or be removed from between the teeth of the tooth plate by rotating.

[0031] In a second aspect, the utility model provides a harvester threshing and separation system, comprising the threshing concave plate described in any one of the aforementioned embodiments.

[0032] The beneficial effects of the embodiments of the present utility model are:

[0033] By arranging the first concave plate and the second concave plate, which correspond to the cutting drum and the accelerating drum respectively, the adaptability of the threshing concave plate is increased, and the operating capacity can be better improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 A schematic diagram of the three-dimensional structure of a threshing concave plate provided in an embodiment of the present utility model;

[0036] Figure 2 A side view of a threshing concave plate provided in an embodiment of the present utility model;

[0037] Figure 3 A schematic structural diagram of a welded grid of a threshing concave plate provided in an embodiment of the present utility model;

[0038] Figure 4 A schematic structural diagram of the first frame of the threshing concave provided in an embodiment of the present utility model;

[0039] Figure 5 A schematic structural diagram of a first adjusting device for a threshing concave provided in an embodiment of the present utility model;

[0040] Figure 6 A schematic structural diagram of the second adjusting device of the threshing concave provided in an embodiment of the present utility model.

[0041] Icons: 1-first concave plate; 2-second concave plate; 3-first adjusting device; 4-second adjusting device; 5-front beam; 6-rear beam; 7-side plate; 8-cross partition; 9-bar; 10-disassembly and assembly gap; 11-cross beam; 12-left end plate; 13-support plate; 14-right end plate; 15-separation plate; 16-threshing partition; 17-first limit plate; 18-handle; 19-second limit plate; 20-clip plate; 21-tooth plate; 22-mounting seat; 23-rotating arm; 24-power unit; 25-second transmission structure. DETAILED DESCRIPTION

[0042] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0044] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0045] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0046] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0047] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0048] The following combination Figures 1 to 6 , some embodiments of the present invention are described in detail. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0049] In the first aspect, the utility model provides a threshing concave plate, such as Figure 1 and Figure 2 As shown, it includes a first concave plate 1, a second concave plate 2, a first adjusting device 3 and a second adjusting device 4; the first concave plate 1 and the second concave plate 2 are hinged; the first adjusting device 3 is connected to the first concave plate 1, and is used to adjust the gap between the first concave plate 1 and the cutting flow drum, and the gap between the second concave plate 2 and the acceleration drum; the second adjusting device 4 is connected to the second concave plate 2, and is used to adjust the gap between the second concave plate 2 and the acceleration drum.

[0050] The harvester passes the material through the header system and enters the threshing system from the concave plate entrance. The material passes through the gap between the concave plate and the drum, and is rubbed and threshed under the rotation and beating of the drum and the combined action of the concave plate. Part of the threshed material falls into the cleaning system through the concave plate, and part enters the separation system with the straw to separate the straw from the threshing material. When harvesting different crops, the harvester needs to adjust the threshing gap before harvesting according to the specific crops to ensure the quality of the crop harvest, including the qualified breakage rate and grain loss rate.

[0051] In this embodiment, an acceleration roller and a cutting flow roller are provided, and a second concave plate 2 and a first concave plate 1 are provided below the acceleration roller and the cutting flow roller, so that kneading and threshing can be performed to improve the quality of crop harvest.

[0052] In this embodiment, the first concave plate 1 is arranged corresponding to the shearing drum, and the second concave plate 2 is arranged corresponding to the acceleration drum. The gap between the first concave plate 1 and the shearing drum is adjusted by the first adjusting device 3, and the gap between the second concave plate and the acceleration drum is adjusted to a certain extent; the gap between the second concave plate 2 and the acceleration drum is adjusted by the second adjusting device 4.

[0053] In this embodiment, the first concave plate 1 and the second concave plate 2 are hinged, so that when the second concave plate 2 is adjusted separately, the influence on the first concave plate can be reduced.

[0054] A first concave plate 1 is provided below the shear drum, and a second concave plate 2 is provided below the acceleration drum. The provision of the two concave plates can improve the threshing and separation capabilities of the separation system and effectively enhance the operating capacity.

[0055] In an optional embodiment, the first concave plate 1 includes a first frame and a plurality of bars 9; the bars 9 are arranged on the first frame to form a grid structure.

[0056] In this embodiment, the bars 9 are arranged in parallel on the first frame, and together with the partition plates and other structures arranged on the first frame, form a grid structure, thereby improving the coordination with the cutting flow drum and enhancing the operating capacity.

[0057] In an optional embodiment, the second concave plate 2 includes a second frame, a welded grid and a pressing plate; the welded grid is arranged on the second frame, and the pressing plate is used to fix the welded grid on the second frame.

[0058] In this embodiment, the welded mesh is placed on the second frame, and its front end, that is, the end away from the first concave plate 1, is limited by the pressure plate, and the rear end, that is, the end close to the first concave plate 1, is limited by the upper sealing plate, thereby achieving the purpose of fixing the welded mesh on the second frame.

[0059] Such an arrangement can facilitate the replacement of the second concave plate 2 and has good maintenance convenience.

[0060] It can be understood that the welded mesh can be positioned on the second frame through the upper sealing plate and the pressure plate, but it is not limited to this setting method. It can also be other fixed settings, such as bolt connection, etc., as long as it can achieve the fixation of the welded mesh on the second frame.

[0061] In an optional embodiment, the welded mesh includes a front beam 5, a rear beam 6, a side panel 7, a cross partition 8 and a bar 9; the two ends of the front beam 5 and the rear beam 6 are connected to form a frame structure through the side panel 7; the two ends of the cross partition 8 are connected to the two side panels 7, and the cross partition 8 is arranged parallel to the front beam 5 and the rear beam 6; the two ends of the bar 9 are connected to the front beam 5 and the rear beam 6, and the bar 9 is arranged parallel to the side panel 7.

[0062] In this embodiment, the welded mesh of the second concave plate 2 is composed of a front beam 5, a rear beam 6, a side plate 7, a cross partition 8 and bars 9, wherein the front beam 5, the rear beam 6 and the two side plates 7 form a frame structure, the cross partition 8 is arranged parallel to the front beam 5 and the rear beam 6, and the two ends of the bars 9 are connected to the front beam 5 and the rear beam 6, and are connected to the cross partition 8 at the same time. All the bars 9 are parallel to each other, and the spacing between two adjacent bars 9 is the same, forming a detachable and installable mesh structure.

[0063] In this embodiment, the bars 9 are round rod structures.

[0064] It should be pointed out that the bars 9 may be round rods, or they may be plate-shaped structures or structures of other shapes, as long as they can play the role of the bars 9 .

[0065] In an optional embodiment, a disassembly notch 10 is provided on the front beam 5 .

[0066] In this embodiment, after the disassembly notch 10 is added to the front beam 5 , it is possible to facilitate the disassembly of the welded grid from the second concave plate 2 .

[0067] In this embodiment, the shape of the disassembly and assembly gap 10 can be a rectangle, a square, a circle, a diamond, a parallelogram, or the like.

[0068] In this embodiment, the disassembly notch 10 is provided in the middle of the front beam 5 .

[0069] It is understandable that the position of the disassembly notch 10 can be the middle of both ends of the front beam 5, but it is not limited to the middle of the front beam 5. It can be located at any position of the front beam 5 as long as it can facilitate the disassembly and assembly of the welded grid.

[0070] In an optional embodiment, the second frame includes a crossbeam 11, a left end plate 12, a right end plate 14, a support plate 13, a separation plate 15, a threshing baffle 16 and a first limiting plate 17; one end of the left end plate 12 and one end of the right end plate 14 are respectively arranged at the two ends of the crossbeam 11, and the other end of the left end plate 12 and the other end of the right end plate 14 are respectively arranged at the two ends of the threshing baffle 16, forming a frame structure; the two ends of the first limiting plate 17 are respectively connected to the left end plate 12 and the right end plate 14, and the first limiting plate 17 is parallel to the crossbeam 11; the support plate 13 connects the crossbeam 11 and the first limiting plate 17, and multiple support plates 13 are arranged in parallel.

[0071] In this embodiment, the second frame of the second concave plate 2 is composed of a front beam 5, a left end plate 12, a right end plate 14, a support plate 13, a separation plate 15, a threshing partition 16 and a first limit plate 17, and the parts are fixedly connected by welding.

[0072] The separation plate 15 is provided with separation holes for separating the materials. The separation holes are in the shape of oblong holes with the long sides arranged along the direction of material flow, that is, the whole machine is arranged from front to back. A threshing partition 16 is designed between the separation holes to play a threshing role.

[0073] In an optional embodiment, the left end plate 12 includes a front plate and a rear plate, and the front plate and the rear plate are on the same plane and have a set angle.

[0074] In this embodiment, an angle is provided between the front plate and the rear plate, so that the second concave plate 2 can cooperate well with the acceleration roller, thereby improving the threshing efficiency.

[0075] In an optional embodiment, the second adjustment device 4 includes a power device 24 and a second transmission structure 25; the power device 24 is connected to the second concave plate 2 through the second transmission structure 25; a slide groove is provided on the second concave plate 2, and a slide rod is provided on the first concave plate 1, and the slide rod is slidably provided in the slide groove.

[0076] Specifically, in this embodiment, the sliding grooves on the second concave plate 2 are provided on the left end plate 12 and the right end plate 14 , and the sliding rods are provided on the first frame of the first concave plate 1 .

[0077] More specifically, in this embodiment, the shape of the chute can be oblong, rectangular, square, etc.

[0078] In this embodiment, the power device 24 may be an electric push rod, a hydraulic cylinder, or other power devices 24 that can provide linear motion and rotational motion, and the second transmission mechanism is a rotating arm 23 .

[0079] Specifically, in this embodiment, one end of the rotating arm 23 is hinged to the second concave plate 2 , the middle rotation point is hinged to the frame of the harvester, and the other end of the rotating arm 23 is hinged to the power device 24 .

[0080] In this embodiment, the second adjustment device 4 can be installed on the left side, the right side, or both sides of the entire machine.

[0081] In an optional embodiment, the first adjusting device 3 includes a handle 18, a mounting seat 22, a rotating arm 23, a tooth plate 21, a clamping plate 20, a second limiting plate 19 and a first transmission structure; one end of the tooth plate 21 is fixedly connected to the mounting seat 22 for being fixedly set by the mounting seat 22; the second limiting plate 19 is fixedly set on the handle 18, and a limiting channel is formed between the second limiting plate 19 and the handle 18, and the other end of the tooth plate 21 is set through the limiting channel; the rotating arm 23 is fixedly connected to one end of the handle 18, and the first transmission structure is connected to the rotating arm 23; the clamping plate 20 is rotatably set on the handle 18, and can enter between the teeth of the tooth plate 21 or move away from between the teeth of the tooth plate 21 by rotating.

[0082] In this embodiment, the first adjustment device 3 is mainly composed of a handle 18, a mounting seat 22, a rotating arm 23, a tooth plate 21, a clamping plate 20, a second limiting plate 19 and a first transmission structure, wherein a rotating sleeve is provided outside the rotating arm 23.

[0083] In this embodiment, the first transmission structure includes an adjusting rod and a fixing rod.

[0084] Specifically, in this embodiment, the handle 18 and the pivot arm 23 are radially fixedly connected by a key, the tooth plate 21 and the mounting seat 22 are hinged by a pin, the second limit plate 19 and the handle 18 are fixedly connected by a bolt, the tooth plate 21 passes through the gap between the second limit plate 19 and the handle 18, and the clamping plate 20 and the handle 18 are hinged by a pin; the pivot arm 23 is hinged to one end of the connecting rod by a pin, and the other end of the connecting rod is connected to the rotating shaft sleeve by a pin, one end of the rotating shaft is radially fixedly connected to the rotating shaft sleeve by a key, and the other end is hinged to the concave plate adjustment rod, the other end of the rotating shaft sleeve is hinged to the concave plate adjustment rod, and the other end of the concave plate rod is hinged to the concave plate by a pin; the pivot arm 23 and the rotating shaft are mounted on their respective fixed brackets through bearings.

[0085] When the gap needs to be increased, the button on the handle 18 is pressed, the limiting clamping plate 20 rotates around the pin shaft and disengages from the slot on the tooth plate 21. The handle 18 is lowered to a suitable position, the rotating arm 23 rotates, the swing arm rotates counterclockwise, the rotating shaft sleeve rotates clockwise, the adjustment rod moves downward, the first concave plate 1 moves away from the cutting flow roller, the button is released, the clamping plate 20 falls into the slot of the tooth plate 21 for limiting, and the gap between the first concave plate 1 and the cutting flow roller is increased and adjusted.

[0086] When the gap needs to be reduced, the button on the handle 18 is pressed, the limiting clamping plate 20 rotates around the pin shaft and disengages the slot on the tooth plate 21. The handle 18 is pulled up to a suitable position, the rotating arm 23 rotates, the swing arm rotates clockwise, the rotating shaft sleeve rotates counterclockwise, the adjustment rod moves upward, the first concave plate 1 moves closer to the cutting flow roller, the button is released, the clamping plate 20 falls into the slot of the tooth plate 21 for limiting, and the gap between the first concave plate 1 and the cutting flow roller is reduced and adjusted.

[0087] It is understandable that the handle 18 can be replaced by an electronically controlled hydraulic cylinder structure; the handle 18 can be located on the left or right side of the driver in the cab, or can be located outside the cab body.

[0088] In a second aspect, the utility model provides a harvester threshing and separation system, comprising the threshing concave plate described in any one of the aforementioned embodiments.

[0089] The beneficial effects of the embodiments of the present utility model are:

[0090] By arranging the first concave plate 1 and the second concave plate 2, which correspond to the cutting drum and the accelerating drum respectively, the adaptability of the threshing concave plate is increased, and the operating capacity can be better improved.

[0091] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A threshing concave plate, characterized in that: comprising a first concave plate, a second concave plate, a first adjusting device and a second adjusting device; The first concave plate and the second concave plate are hinged; The first adjusting device is connected to the first concave plate and is used to adjust the gap between the first concave plate and the flow cutting roller, and the gap between the second concave plate and the acceleration roller; The second adjusting device is connected to the second concave plate and is used to adjust the gap between the second concave plate and the acceleration roller.

2. The threshing concave according to claim 1, characterized in that The first concave plate includes a first frame and a plurality of bars; The bars are arranged on the first frame to form a grid structure.

3. The threshing concave according to claim 1, characterized in that The second concave plate includes a second frame, a welded grid and a pressing plate; The welded grid is arranged on the second frame, and the pressing plate is used to fix the welded grid on the second frame.

4. The threshing concave according to claim 3, characterized in that The welded mesh grid includes a front beam, a rear beam, side plates, a transverse partition and bars; Both ends of the front beam and the rear beam are connected to form a frame structure through the side plates; The two ends of the transverse partition are connected to the two side panels, and the transverse partition is arranged parallel to the front beam and the rear beam; Two ends of the grating are connected to the front beam and the rear beam, and the grating is arranged parallel to the side plate.

5. The threshing concave according to claim 4, characterized in that: A disassembly and assembly notch is provided on the front beam.

6. The threshing concave according to claim 3, characterized in that: The second frame includes a crossbeam, a left end plate, a right end plate, a support plate, a separation plate, a threshing partition and a first limit plate; One end of the left end plate and one end of the right end plate are respectively arranged at two ends of the crossbeam, and the other end of the left end plate and the other end of the right end plate are respectively arranged at two ends of the threshing partition to form a frame structure; Two ends of the first limiting plate are respectively connected to the left end plate and the right end plate, and the first limiting plate is parallel to the crossbeam; The support plate connects the crossbeam and the first limiting plate, and a plurality of support plates are arranged in parallel.

7. The threshing concave according to claim 6, characterized in that The left end plate includes a front plate and a rear plate, and the front plate and the rear plate are on the same plane and have a set angle.

8. The threshing concave according to claim 6, characterized in that: The second regulating device includes a power device and a second transmission structure; The power device is connected to the second concave plate via the second transmission structure; The second concave plate is provided with a sliding groove, the first concave plate is provided with a sliding rod, and the sliding rod is slidably provided in the sliding groove.

9. The threshing concave according to claim 1, characterized in that: The first adjustment device includes a handle, a mounting seat, a rotating arm, a tooth plate, a clamping plate, a second limiting plate and a first transmission structure; One end of the tooth plate is fixedly connected to the mounting seat, and is used for being fixedly arranged by the mounting seat; The second limiting plate is fixedly arranged on the handle, and a limiting channel is formed between the second limiting plate and the handle, and the other end of the tooth plate is arranged through the limiting channel; The rotating arm is fixedly connected to one end of the handle, and the first transmission structure is connected to the rotating arm; The clamping plate is rotatably arranged on the handle and can enter between the teeth of the tooth plate or be removed from between the teeth of the tooth plate by rotating.

10. A harvester threshing and separation system, characterized in that: The invention comprises the threshing concave plate according to any one of claims 1 to 9.

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