Quick-release threshing concave structure and harvester

By designing a quick-release threshing concave plate structure and using a frame and fastener connection method, the harvester concave plate can be quickly replaced, solving the problem of time-consuming and labor-intensive concave plate replacement in the existing technology, and improving work efficiency and adaptability.

CN224482235UActive Publication Date: 2026-07-14LOVOL HEAVY IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LOVOL HEAVY IND CO LTD
Filing Date
2025-07-11
Publication Date
2026-07-14

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Abstract

The utility model relates to a quick detach type threshing concave plate structure and harvester, wherein, a quick detach type threshing concave plate structure, include: frame, concave plate is arranged with at least two, and each block concave plate array in the frame, the lowermost each concave plate is overlapped in the lower end of frame, the uppermost each block concave plate is used for connecting concave plate adjusting shaft, upper fastener is arranged with multiple in the interval, and is connected to the upper end of frame and the uppermost each block concave plate simultaneously, side fastener is arranged with multiple in the interval and is distributed in the left and right two ends of frame, and each side fastener is connected to the frame and corresponding each block concave plate simultaneously, intermediate fastener is arranged with multiple in the interval, and is connected to two concave plates adjacent simultaneously. The utility model can improve the technical problem of inconvenient existing concave plate dismounting mode, time -consuming and labor -intensive, and influence work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a quick-release threshing concave plate structure and a harvester. Background Technology

[0002] Currently, the movable concave plate of the harvester is integrated into the front of the threshing machine body through the concave plate adjustment assembly. Different concave plates need to be replaced for different crops (such as wheat, corn, and grains). Therefore, the concave plate adjustment assembly needs to be disassembled, the concave plate replaced, and then the concave plate adjustment assembly reassembled. This replacement method seriously affects work efficiency. Moreover, replacing the concave plate requires the cooperation of multiple people and is not easy to operate. Especially when the farm machinery operator is working across areas, there is no spare manpower to replace the concave plate, which is time-consuming and laborious, and directly affects the economic income of the farm machinery operator. Utility Model Content

[0003] This utility model addresses the technical problems of existing concave plate disassembly and assembly methods being inconvenient, time-consuming, labor-intensive, and affecting work efficiency by providing a quick-release threshing concave plate structure and harvester.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] On the one hand, this utility model provides a quick-release threshing concave plate structure, including:

[0006] frame;

[0007] At least two concave plates are arranged thereon, and each of the concave plates is arrayed within the frame. The lowermost concave plates overlap the lower end of the frame, and the uppermost concave plates are used to connect the concave plate adjustment shaft.

[0008] The fasteners are arranged at intervals and are simultaneously connected to the upper end of the frame and each of the uppermost concave plates.

[0009] Side fasteners are arranged at intervals and distributed at both ends of the frame, and each side fastener is simultaneously connected to the frame and the corresponding concave plate.

[0010] The intermediate fasteners are arranged at intervals and are simultaneously connected to two adjacent concave plates.

[0011] The beneficial effects of this utility model are as follows: by setting a frame and multiple concave plates to form a frame-type concave plate structure, when different concave plates need to be replaced, it is only necessary to remove the corresponding side fasteners and middle fasteners to remove and replace the corresponding lower concave plates. It is not necessary to disassemble and replace the entire concave plate adjustment assembly. This improves the technical problem that the existing concave plate disassembly and assembly methods are inconvenient, time-consuming, labor-intensive, and affect work efficiency. At the same time, the lowermost concave plates are all connected to the lower end of the frame, making disassembly and assembly more convenient and quick.

[0012] Based on the above technical solution, the present invention can be further improved as follows.

[0013] Furthermore, the array of each concave plate is formed in two rows, and the array is formed in at least one column. The area of ​​each concave plate in the next row is larger than the area of ​​each concave plate in the previous row. The concave plates in the previous row are used to connect the concave plate adjustment shaft.

[0014] Furthermore, the frame includes an upper horizontal plate, a lower horizontal plate, and two side plates. One side plate, the upper horizontal plate, the other side plate, and the lower horizontal plate are connected end to end in sequence. The bottommost concave plates overlap the lower horizontal plate, and the topmost concave plates are connected to the upper horizontal plate by upper fasteners. The two side plates are connected to the corresponding concave plates by corresponding side fasteners.

[0015] Furthermore, the frame also includes multiple parallel spaced partitions, at least one end of each partition is fixedly connected to the frame, each partition is distributed between two adjacent concave plates, and the intermediate fastener is simultaneously connected to the corresponding partition.

[0016] Furthermore, the lower horizontal plate is provided with a plurality of lower insertion holes spaced apart; each of the partition plates is vertically arranged, and its upper end is fixedly connected to an upper boss that overlaps the upper horizontal plate, and its lower end is fixedly connected to a lower boss. Each of the lower bosses is inserted into each of the lower insertion holes and welded to the hole wall of the corresponding lower insertion hole.

[0017] Furthermore, the frame also includes multiple positioning plates, each of which corresponds one-to-one with the bottommost concave plates, and one end of each positioning plate is welded to the corresponding concave plate, while the other end is bent and overlapped with the lower horizontal plate.

[0018] Furthermore, the upper horizontal plate includes a blocking plate and a receiving plate fixedly connected to the lower side of one end of the blocking plate on one side. The other end of the blocking plate is bent upward, and each of the uppermost concave plates is simultaneously connected to one end of the receiving plate and the blocking plate by the upper fastener.

[0019] Furthermore, one end of the blocking plate and the receiving plate are simultaneously provided with multiple upper insertion holes, each of which is used to install the respective upper fastener.

[0020] Furthermore, each of the concave plates located at the left and right ends of the frame is provided with a positioning groove, and each positioning groove is used for the corresponding side fastener to slide in or out.

[0021] On the other hand, this utility model provides a harvester, including a quick-release threshing concave plate structure as described above. Attached Figure Description

[0022] Figure 1 This is a partial structural diagram of the harvester of this utility model;

[0023] Figure 2 This is a bottom view of the quick-release threshing concave plate structure of this utility model.

[0024] Figure 3 For the present utility model Figure 2 First partial structural diagram;

[0025] Figure 4 For the present utility model Figure 2 The second local structural diagram;

[0026] Figure 5 This is a structural diagram of the frame of this utility model;

[0027] Figure 6 This is a first partial structural diagram of the concave plate of this utility model;

[0028] Figure 7 This is a second partial structural diagram of the concave plate of this utility model;

[0029] Figure 8 This is a cross-sectional view of the frame of this utility model, mainly showing the structure of the partition;

[0030] Figure 9 This is a structural diagram of the lower horizontal plate of this utility model;

[0031] Figure 10 This is a structural diagram of the blocking plate of this utility model.

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 1. Frame; 11. Upper horizontal plate; 111. Blocking plate; 112. Supporting plate; 113. Upper insertion hole; 12. Side plate; 13. Lower horizontal plate; 131. Lower insertion hole; 14. Partition plate; 141. Upper boss; 142. Lower boss; 15. Positioning plate;

[0034] 2. Concave plate; 21. Positioning groove;

[0035] 3. Install fasteners;

[0036] 4. Side fasteners;

[0037] 5. Intermediate fasteners;

[0038] 6. Concave plate adjusting shaft. Detailed Implementation

[0039] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0040] On the one hand, this utility model provides a quick-release threshing concave plate structure, as described below.

[0041] Example 1

[0042] like Figures 1-10 A quick-release threshing concave plate structure, comprising:

[0043] Framework 1;

[0044] At least two concave plates 2 are arranged, and each concave plate 2 is arranged in an array within the frame 1. The lowermost concave plates 2 overlap the lower end of the frame 1, and the uppermost concave plates 2 are used to connect the concave plate adjusting shaft 6.

[0045] The upper fasteners 3 are arranged at intervals and are simultaneously connected to the upper end of the frame 1 and the uppermost concave plates 2.

[0046] Side fasteners 4 are arranged at intervals and distributed at both ends of the frame 1, and each side fastener 4 is simultaneously connected to the frame 1 and the corresponding concave plate 2.

[0047] The intermediate fasteners 5 are arranged in multiple intervals and are simultaneously connected to two adjacent concave plates 2.

[0048] The beneficial effects of this embodiment are as follows: by setting the frame 1 and multiple concave plates 2 to form a frame-type concave plate structure, when it is necessary to replace different concave plates 2, it is only necessary to remove the corresponding side fasteners 4 and middle fasteners 5 to remove and replace the corresponding lower concave plates 2. It is not necessary to disassemble and replace the entire concave plate adjustment assembly. This improves the technical problem that the existing concave plate 2 disassembly and assembly methods are inconvenient, time-consuming and labor-intensive, and affect work efficiency. At the same time, the lowermost concave plates 2 are all connected to the lower end of the frame 1, making disassembly and assembly more convenient and quick.

[0049] Among them, the array method of each concave plate 2 is "column" along the vertical direction of the frame 1 and "row" along the horizontal direction of the frame 1. Each concave plate 2 can be arrayed in a way that is one row and multiple columns, one column and multiple rows, or multiple columns and multiple rows. Figure 2 In the middle, each concave plate 2 has four pieces, which are arranged in two rows and two columns.

[0050] Based on the above embodiments, the upper fastener 3, the side fastener 4, and the middle fastener 5 can all be bolts, and the bolts can be single-ended bolts or double-ended bolts.

[0051] Example 2

[0052] like Figures 2-4 , Figure 6 as well as Figure 7 Based on embodiment 1, each concave plate 2 is arranged in two rows and the array is arranged in at least one column. The area of ​​each concave plate 2 in the next row is larger than the area of ​​each concave plate 2 in the previous row. Each concave plate 2 in the previous row is used to connect the concave plate adjusting shaft 6.

[0053] The beneficial effect of adopting the preferred solution in the above embodiments is that when replacement is required, only the concave plates 2 in the next row need to be replaced, and the area of ​​each concave plate 2 in the next row is larger than the area of ​​each concave plate 2 in the previous row, so that the operation of replacing each concave plate 2 in the next row can make the threshing structure of the replaced concave plate as consistent as possible with the replacement target, thereby improving the replacement efficiency.

[0054] Example 3

[0055] like Figures 3-5 Based on embodiments 1 and 2, the frame 1 includes an upper horizontal plate 11, a lower horizontal plate 13, and two side plates 12. One side plate 12, the upper horizontal plate 11, the other side plate 12, and the lower horizontal plate 13 are connected end to end in sequence. The bottommost concave plates 2 overlap the lower horizontal plate 13, and the topmost concave plates 2 are connected to the upper horizontal plate 11 by upper fasteners 3. The two side plates 12 are connected to the corresponding concave plates 2 by corresponding side fasteners 4.

[0056] The advantage of adopting the preferred solution in the above embodiments is that a frame structure installed on multiple concave plates 2 is formed by the upper horizontal plate 11, the lower horizontal plate 13 and the two side plates 12.

[0057] Example 4

[0058] like Figure 4 , Figure 5 as well as Figure 8 Based on embodiments 1-3, the frame 1 also includes multiple parallel spaced partitions 14, at least one end of each partition 14 is fixedly connected to the frame 1, each partition 14 is distributed between two adjacent concave plates 2, and the intermediate fasteners 5 are simultaneously connected to the corresponding partitions 14.

[0059] The beneficial effect of adopting the preferred solution in the above embodiments is that the structural strength of the frame 1 is improved by each partition 14, and the installation stability of the corresponding concave plate 2 is improved by each partition 14.

[0060] As one of the parallel solutions in the above embodiments, such as Figure 5 Each partition 14 is vertically arranged. At this time, the upper and lower ends of each partition 14 are respectively connected to the corresponding upper horizontal plate 11 and lower horizontal plate 13, and the upper end is fixedly connected to the upper horizontal plate 11, the lower end is fixedly connected to the lower horizontal plate 13, or the upper and lower ends are respectively fixedly connected to the corresponding upper horizontal plate 11 and lower horizontal plate 13.

[0061] As a second parallel scheme of the above embodiments, each partition 14 is arranged horizontally and extends in the left and right direction. At this time, the left and right ends of each partition 14 are respectively connected to the corresponding side plate 12, and the left end is fixedly connected to one of the side plates 12, the right end is fixedly connected to the other side plate 12, or the left and right ends are respectively fixedly connected to the corresponding side plate 12.

[0062] Example 5

[0063] like Figure 8 and Figure 9 Based on embodiments 1-4, the lower horizontal plate 13 is provided with a plurality of lower insertion holes 131 spaced apart; each partition plate 14 is vertically arranged, and its upper end is fixedly connected to an upper boss 141 overlapping the upper horizontal plate 11, and its lower end is fixedly connected to a lower boss 142. Each lower boss 142 is inserted into each lower insertion hole 131 and welded to the hole wall of the corresponding lower insertion hole 131.

[0064] The beneficial effect of adopting the preferred solution in the above embodiments is that the partition 14 can be quickly installed by inserting the lower boss 142 into the lower insertion hole 131. After being inserted into place, the upper boss 141 overlaps the upper horizontal plate 11, and then the lower boss 142 and the hole wall of the lower insertion hole 131 are welded together to achieve the fixed installation of the partition 14. The opening of the lower insertion hole 131 can make the welding more reliable and increase the welding area.

[0065] The lower insertion hole 131 is a rectangular hole.

[0066] Example 6

[0067] like Figure 5 ,like Figure 8 as well as Figure 9 Based on embodiments 1-5, the frame 1 also includes multiple positioning plates 15, each positioning plate 15 corresponding to each of the bottommost concave plates 2, and one end of each positioning plate 15 is welded to the corresponding concave plate 2, and the other end is bent and overlapped with the lower horizontal plate 13.

[0068] The advantage of the preferred solution in the above embodiments is that positioning is achieved by having the bottom concave plates 2 overlap with the lower horizontal plate 13, thus ensuring that the bottom concave plates 2 are installed smoothly in place.

[0069] Example 7

[0070] like Figure 8 Based on embodiments 1-6, the upper horizontal plate 11 includes a blocking plate 111 and a receiving plate 112 fixedly connected to the lower side of one end of the blocking plate 111. The other end of the blocking plate 111 is bent upward, and each of the uppermost concave plates 2 is simultaneously connected to one end of the receiving plate 112 and the blocking plate 111 by upper fasteners 3.

[0071] The advantage of adopting the preferred solution in the above embodiments is that the installation of the matching parts is achieved by extending the other end of the blocking plate 111 upward, while forming a clearance space for the corresponding recessed plate 2.

[0072] Example 8

[0073] like Figure 8 and Figure 10 Based on embodiments 1-7, one end of the blocking plate 111 and the receiving plate 112 are simultaneously provided with multiple upper insertion holes 113, each upper insertion hole 113 being used to install each upper fastener 3.

[0074] The beneficial effect of adopting the preferred solution in the above embodiments is that the upper fastener 3 can be smoothly installed through the upper insertion hole 113, thereby achieving stable installation of each of the uppermost concave plates 2.

[0075] During installation, the rod of the upper fastener 3 is inserted into the corresponding upper insertion hole 113.

[0076] Example 9

[0077] like Figure 3 , Figure 5 , Figure 6 as well as Figure 7 Based on embodiments 1-8, each concave plate 2 located at the left and right ends of the frame 1 is provided with a positioning groove 21, and each positioning groove 21 is used for the corresponding side fastener 4 to slide in or out.

[0078] The beneficial effect of adopting the preferred solution in the above embodiments is that when installing the corresponding concave plates 2 at the left and right ends of the frame 1, the corresponding side fasteners 4 can enter the positioning grooves 21 of the concave plates 2. At this time, the side fasteners 4 can form a positioning function for installation on the concave plates 2, thereby achieving fast and accurate installation.

[0079] Based on the above embodiment, the rod of the corresponding side fastener 4 is welded to the corresponding side plate 12, and after tightening the nut, the concave plate 2 is fixedly installed.

[0080] On the other hand, this utility model provides a harvester, as detailed below.

[0081] Example 10

[0082] A type of harvester, such as Figure 1 This includes a quick-release threshing concave plate structure as described in any one of Examples 1-9.

[0083] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0084] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0085] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0086] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0087] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0088] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A quick-release threshing concave plate structure, characterized in that, include: Framework (1); At least two concave plates (2) are arranged thereon, and each of the concave plates (2) is arranged in the frame (1). The lowermost concave plates (2) are attached to the lower end of the frame (1), and the uppermost concave plates (2) are used to connect the concave plate adjustment shaft (6). The upper fasteners (3) are arranged in multiple intervals and are simultaneously connected to the upper end of the frame (1) and each of the uppermost concave plates (2). Side fasteners (4) are arranged at intervals and distributed at the left and right ends of the frame (1), and each of the side fasteners (4) is simultaneously connected to the frame (1) and the corresponding concave plates (2). The intermediate fasteners (5) are arranged in multiple intervals and are simultaneously connected to two adjacent concave plates (2).

2. The quick-release threshing concave plate structure according to claim 1, characterized in that, The concave plates (2) are arranged in two rows and at least one column. The area of ​​each concave plate (2) in the next row is greater than the area of ​​each concave plate (2) in the previous row. The concave plates (2) in the previous row are used to connect the concave plate adjustment shaft (6).

3. The quick-release threshing concave plate structure according to claim 1, characterized in that, The frame (1) includes an upper horizontal plate (11), a lower horizontal plate (13) and two side plates (12). One side plate (12), the upper horizontal plate (11), the other side plate (12) and the lower horizontal plate (13) are connected end to end in sequence. The bottom concave plates (2) overlap the lower horizontal plate (13). The top concave plates (2) are connected to the upper horizontal plate (11) by the upper fastener (3). The two side plates (12) are connected by the corresponding side fastener (4) and the corresponding concave plates (2).

4. The quick-release threshing concave plate structure according to claim 3, characterized in that, The frame (1) also includes multiple parallel spaced partitions (14), at least one end of each partition (14) is fixedly connected to the frame (1), each partition (14) is distributed between two adjacent concave plates (2), and the intermediate fastener (5) is simultaneously connected to the corresponding partition (14).

5. The quick-release threshing concave plate structure according to claim 4, characterized in that, The lower horizontal plate (13) is provided with a plurality of lower insertion holes (131) spaced apart; each of the partition plates (14) is vertically arranged, and each of its upper ends is fixedly connected to an upper boss (141) overlapping the upper horizontal plate (11), and each of its lower ends is fixedly connected to a lower boss (142). Each of the lower bosses (142) is inserted into each of the lower insertion holes (131) and welded to the hole wall of the corresponding lower insertion hole (131).

6. The quick-release threshing concave plate structure according to claim 3, characterized in that, The frame (1) also includes multiple positioning plates (15), each positioning plate (15) corresponds to each of the bottommost concave plates (2), and one end of each positioning plate (15) is welded to the corresponding concave plate (2), and the other end is bent and overlapped with the lower horizontal plate (13).

7. The quick-release threshing concave plate structure according to claim 3, characterized in that, The upper horizontal plate (11) includes a blocking plate (111) and a receiving plate (112) fixedly connected to the lower side of one end of the blocking plate (111). The other end of the blocking plate (111) is bent upward. Each of the uppermost concave plates (2) is simultaneously connected to one end of the receiving plate (112) and the blocking plate (111) by the upper fastener (3).

8. The quick-release threshing concave plate structure according to claim 7, characterized in that, The end of the blocking plate (111) and the receiving plate (112) are simultaneously provided with a plurality of upper insertion holes (113), each of the upper insertion holes (113) being used to install each of the upper fasteners (3).

9. A quick-release threshing concave plate structure according to any one of claims 1-8, characterized in that, Each of the concave plates (2) located at the left and right ends of the frame (1) is provided with a positioning groove (21), and each positioning groove (21) is used for the corresponding side fastener (4) to slide in or out.

10. A harvester, characterized in that, Includes a quick-release threshing concave plate structure as described in any one of claims 1-9.