Re-threshing device and harvester

By adjusting the angle between the toothed plate assembly and the toothed plate seat assembly, the adaptability of the rice harvester to handle different varieties and growth stages of rice was solved, achieving efficient double threshing and improving harvest quality and yield.

CN223844421UActive Publication Date: 2026-01-30LOVOL HEAVY IND CO LTD
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Patent Information

Application Number
CN202520459528.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-01-30
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

The existing rice harvester threshing devices are poorly adaptable to different varieties and growth stages of rice, resulting in incomplete threshing or excessive re-threshing, which affects harvest quality and yield.

Method used

By adjusting the angle between the toothed plate assembly and the toothed plate seat assembly, and utilizing the adjusting seat, rotating connecting seat, and detachable connecting structure, the overlap between the toothed plate assembly and the toothed plate seat assembly can be adjusted to meet the re-threshing needs of rice varieties and growth stages.

Benefits of technology

It enables effective re-threshing of rice varieties and growth stages, meeting diverse operational needs and improving harvest quality and yield.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a re-threshing device and a harvester. The re-threshing device comprises a toothed plate assembly, a toothed plate seat assembly, a rotary connecting seat and an adjusting seat; the rotary connecting seat and the adjusting seat are both arranged on the toothed plate seat assembly; one end of the toothed plate assembly is rotationally connected with the toothed plate seat assembly through a rotary connecting seat; the other end of the toothed plate assembly is detachably connected with the toothed plate seat assembly through the adjusting seat, and the angle between the toothed plate assembly and the toothed plate seat assembly can be adjusted. The toothed plate assembly comprises a bottom plate and a plurality of threshing toothed plates, and the threshing toothed plates are arranged on the same side of the bottom plate; the toothed plate base assembly is provided with a plurality of adjusting grooves, and the threshing toothed plate penetrates through the adjusting grooves and is used for threshing grains. According to the utility model, the re-threshing device can be used for re-threshing different varieties of rice in different growth states, and diversified operation requirements are met.
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Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, specifically, relate to a kind of complex threshing device and harvester. BACKGROUND

[0002] In rice harvesting operation, threshing is very important. In actual application, the existing rice harvester threshing device often faces incomplete threshing, resulting in part of the rice and secondary branch not being separated, or excessive complex threshing leading to broken rice, reducing the quality and yield of harvesting.

[0003] In addition, the existing complex threshing device has poor adaptability when processing rice of different varieties and different growth states, and cannot meet the diversified operation requirements. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of complex threshing device and harvester, which can adjust the coincidence degree of the tooth plate and the tooth plate seat assembly, meet the complex threshing of the complex threshing device for rice of different varieties and different growth states, and meet the diversified operation requirements.

[0005] In the first aspect, the utility model provides a kind of complex threshing device, including tooth plate assembly, tooth plate seat assembly, rotating connecting seat and adjusting seat;

[0006] The rotating connecting seat and the adjusting seat are both arranged on the tooth plate seat assembly;

[0007] One end of the tooth plate assembly is rotatably connected with the tooth plate seat assembly through the rotating connecting seat;

[0008] The other end of the tooth plate assembly is detachably connected with the tooth plate seat assembly through the adjusting seat, which can adjust the angle between the tooth plate assembly and the tooth plate seat assembly;

[0009] The tooth plate assembly includes a bottom plate and multiple threshing tooth plates, and the multiple threshing tooth plates are arranged on the same side of the bottom plate;

[0010] The tooth plate seat assembly has multiple adjusting grooves, and the threshing tooth plates are arranged through the adjusting grooves for threshing grain.

[0011] In an optional embodiment, multiple adjusting holes are arranged on the threshing tooth plate, and the adjusting seat cooperates with different adjusting holes to adjust the tooth plate assembly.

[0012] In an optional embodiment, the adjusting seat includes a pin shaft ear plate, an adjusting pin and a locking piece.

[0013] The pin shaft ear plate is provided with a positioning pin hole corresponding to the adjusting hole of the threshing tooth plate, and the adjusting pin can match with different adjusting holes after passing through the positioning pin hole, so as to adjust the tooth height of the threshing tooth plate after passing through the adjusting slot.

[0014] The locking part is arranged at one end of the adjusting pin, and is used for axially locking the adjusting pin.

[0015] In an optional embodiment, when the adjusting pin is inserted into any one of the adjusting holes, the remaining adjusting holes are arranged inside or outside the tooth plate seat assembly.

[0016] In an optional embodiment, the rotating connection seat comprises a shaft tube and a rotating shaft.

[0017] The rotating shaft is arranged through the shaft tube, and two ends of the rotating shaft are rotatably connected with the tooth plate assembly.

[0018] In an optional embodiment, the threshing tooth plate and the adjusting slot are in transition fit.

[0019] In an optional embodiment, a plurality of the threshing tooth plates are arranged staggeredly on the bottom plate.

[0020] In an optional embodiment, the tooth plate seat assembly comprises a seat plate, a first connecting end and a second connecting end.

[0021] The first connecting end and the second connecting end are arranged at two ends of the seat plate respectively, and are used for fixing the seat plate on the secondary threshing cavity.

[0022] In an optional embodiment, the first connecting end is provided with a connecting hole.

[0023] In a second aspect, the utility model provides a harvesting machine, including any preceding embodiment of the secondary threshing device.

[0024] The utility model discloses beneficial effects are:

[0025] The angle between the tooth plate assembly and the tooth plate seat assembly is adjusted through the adjusting seat, the coincidence of the adjusting tooth plate and the tooth plate seat assembly is adjusted, so that the height of the tooth plate assembly in the secondary threshing cavity is adjusted, the secondary threshing device can process different varieties and different growth state rice secondary threshing, and the diversified operation demand is met. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the premise of the drawings.

[0027] Figure 1 A perspective structural schematic view of the double threshing device is provided for the embodiments of the present application.

[0028] Figure 2 Another perspective structural schematic view of the double threshing device is provided for the embodiments of the present application.

[0029] Figure 3 Another state perspective structural schematic view of the double threshing device is provided for the embodiments of the present application.

[0030] Figure 4 A perspective structural schematic view of the tooth plate assembly of the double threshing device is provided for the embodiments of the present application.

[0031] Figure 5 A perspective structural schematic view of the tooth plate seat assembly of the double threshing device is provided for the embodiments of the present application.

[0032] Figure 6 A use state reference view of the double threshing device is provided for the embodiments of the present application.

[0033] Figure 7 A perspective structural schematic view of Figure 6 .

[0034] Figure: 1-tooth plate seat assembly; 2-tooth plate assembly; 3-adjusting seat; 4-rotary connecting seat; 5-threshing tooth plate; 6-adjusting hole; 7-bottom plate; 8-seat plate; 9-adjusting groove; 10-first connecting end; 11-second connecting end; 12-connecting hole; 13-pin shaft lug plate; 14-positioning pin hole; 15-shaft tube; 16-locking piece; 17-adjusting pin; 18-rotary shaft; 19-double threshing cavity. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the application.

[0037] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0038] In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the application is used, and are merely for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0039] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0040] In the description of the application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0041] The following will be combined Figures 1-7 to make a detailed description of some embodiments of the application. In the case of no conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0042] The utility model provides a kind of double threshing device, including toothed plate assembly 2, toothed plate seat component 1, rotary connection seat 4 and adjusting seat 3;The rotary connection seat 4 and the adjusting seat 3 are all arranged on the toothed plate seat component 1;One end of the toothed plate assembly 2 is rotatably connected with the toothed plate seat component 1 by the rotary connection seat 4;The other end of the toothed plate assembly 2 is detachably connected with the toothed plate seat component 1 by the adjusting seat 3, and the angle between the toothed plate assembly 2 and the toothed plate seat component 1 can be adjusted;The toothed plate assembly 2 includes bottom plate 7 and multiple threshing toothed plates 5, and multiple threshing toothed plates 5 are arranged on the same side of the bottom plate 7;The toothed plate seat component 1 has multiple adjusting grooves 9, and the threshing toothed plate 5 is arranged through the adjusting groove 9, for threshing grain.

[0043] In the embodiment, the toothed plate assembly 2 is one of the core components of the double threshing device, including a bottom plate 7 and multiple threshing toothed plates 5. The threshing toothed plates 5 are arranged on the same side of the bottom plate 7, for directly contacting and threshing grain. The bottom plate 7 provides support for the threshing toothed plates 5, ensuring their stability during the threshing process.

[0044] In the embodiment, the toothed plate seat component 1 is the support structure of the device, for fixing the toothed plate assembly 2 and providing adjustment space. Multiple adjusting grooves 9 are arranged thereon. The arrangement of the adjusting grooves 9 allows the threshing toothed plates 5 to pass through the adjusting grooves 9 into the double threshing cavity, and the bottom plate 7 is outside the double threshing cavity 19.

[0045] In the embodiment, the rotary connection seat 4 is installed on the toothed plate seat component 1, for realizing the rotary connection between the toothed plate assembly 2 and the toothed plate seat component 1. One end of the toothed plate assembly 2 is connected with the toothed plate seat component 1 through the rotary connection seat 4. This connection allows the toothed plate assembly 2 to rotate within a certain range, thereby adjusting the angle between the toothed plate assembly 2 and the toothed plate seat component 1 to adapt to different threshing requirements.

[0046] In the embodiment, the adjusting seat 3 is also installed on the toothed plate seat component 1 and connected with the toothed plate assembly 2, capable of realizing the angle adjustment between the toothed plate assembly 2 and the toothed plate seat component 1. The design of the adjusting seat 3 allows the toothed plate assembly 2 to be conveniently installed and removed, while allowing fine adjustment of the position of the toothed plate assembly 2, thereby optimizing the threshing effect.

[0047] In the optional implementation, multiple adjusting holes 6 are arranged on the threshing toothed plate 5, and the adjusting seat cooperates with different adjusting holes 6 to realize the adjustment of the toothed plate assembly 2.

[0048] In the embodiment, multiple adjusting holes 6 are arranged on the threshing toothed plate 5 in a fan shape around the rotary connection seat 4 as the center, and the interval angles between adjacent adjusting holes 6 are the same, thereby being capable of adjusting the height of the part of the threshing toothed plate 5 inserted into the adjusting groove 9 to adapt to the double threshing requirements of different types of grain.

[0049] In the embodiment, the threshing tooth plate 5 corresponding to the adjusting seat 3 has the adjusting hole 6, and the other threshing tooth plates 5 can not be provided with the adjusting hole 6, so that the strength of the threshing tooth plate 5 can be ensured.

[0050] In the optional embodiment, the adjusting seat 3 comprises a pin shaft lug plate 13, an adjusting pin 17 and a locking piece 16. The pin shaft lug plate 13 is provided with a positioning pin hole 14 corresponding to the adjusting hole 6 of at least one of the threshing tooth plates 5. The adjusting pin 17 can match different adjusting holes 6 after passing through the positioning pin hole 14, so as to adjust the tooth height of the threshing tooth plate 5 after passing through the adjusting groove 9. The locking piece 16 is arranged at one end of the adjusting pin 17, and is used for axially locking the adjusting pin 17.

[0051] In the embodiment, the pin shaft lug plate 13 is fixed on the tooth plate seat assembly 1, and is provided with the positioning pin hole 14. The positioning pin hole 14 corresponds to the adjusting hole 6 of the threshing tooth plate 5, and is used for inserting the adjusting pin 17.

[0052] Specifically, in the embodiment, the pin shaft lug plate 13 is two, and is arranged on the two sides of the tooth plate assembly 2 respectively. The two ends of the adjusting pin 17 are inserted into the positioning pin holes 14, and the middle part is inserted into the corresponding adjusting hole 6 of the threshing tooth plate 5, so that the stable supporting force can be provided for the threshing tooth plate 5, and the stability of the threshing tooth plate 5 can be ensured.

[0053] In the embodiment, the adjusting pin 17 is used for passing through the positioning pin hole 14 of the pin shaft lug plate 13, and matches the adjusting hole 6 of the threshing tooth plate 5. By selecting different adjusting holes 6, the tooth height or angle of the threshing tooth plate 5 can be changed.

[0054] In the embodiment, the locking piece 16 is arranged at one end of the adjusting pin 17, and is used for axially locking the adjusting pin 17, so as to ensure that the adjusted state is stable and reliable.

[0055] Specifically, in the embodiment, the locking piece 16 is a locking pin. In use, one end of the adjusting pin 17 has a larger diameter and cannot pass through the positioning pin hole 14, and the other end has a smaller diameter and has a locking hole, and can pass through the positioning pin hole 14, and then extend out of the other positioning pin hole 14. The locking pin is inserted into the locking hole arranged at the end, so as to axially position the adjusting pin 17, and avoid the adjusting pin 17 from being separated from the positioning pin hole 14.

[0056] It can be understood that, in the embodiment, the locking piece 16 is a locking pin, but it is not limited to the locking pin, and can also be other types of locking structures, such as a locking nut, as long as the axial positioning of the adjusting pin 17 can be realized.

[0057] In an alternative embodiment, when the adjustment pin 17 is inserted into any one of the adjustment holes 6, the rest of the adjustment holes 6 are arranged inside or outside the tooth plate seat assembly 1.

[0058] In the present embodiment, the spacing between the adjustment holes 6 is arranged such that when the adjustment pin 17 is inserted into any one of the adjustment holes 6, the rest of the adjustment holes 6 are completely exposed outside the tooth plate seat assembly 1 or completely enter the inside of the tooth plate seat assembly 1, rather than being partially inside and partially outside, thereby being able to avoid the internal grain passing through the tooth plate seat assembly 1 through the adjustment groove 9 when rethreshing is performed.

[0059] In an alternative embodiment, the rotating connection seat 4 comprises a shaft tube 15 and a rotating shaft 18; the rotating shaft 18 is arranged through the shaft tube 15, and both ends of the rotating shaft 18 are rotationally connected with the tooth plate assembly 2.

[0060] In the present embodiment, the main function of the rotating connection seat 4 is to realize the rotational connection between the tooth plate assembly 2 and the tooth plate seat assembly 1, so that the tooth plate assembly 2 can adjust the angle according to the threshing requirement.

[0061] Specifically, in the present embodiment, the shaft tube 15 is the main part of the rotating connection seat 4, which is usually made of high-strength material to ensure its structural strength and durability. The shaft tube 15 is fixed on the tooth plate seat assembly 1 to provide support and positioning for the rotating shaft 18. The rotating shaft 18 is arranged through the shaft tube 15, and both ends of the rotating shaft 18 are rotationally connected with the tooth plate assembly 2. The design of the rotating shaft 18 allows the tooth plate assembly 2 to rotate around its axis, thereby realizing the angle adjustment of the tooth plate assembly 2.

[0062] More specifically, in the present embodiment, during installation, the shaft tube 15 is first fixed on the tooth plate seat assembly 1 by welding or other means to ensure its stable position; then the rotating shaft 18 is arranged through the shaft tube 15 to realize the rotational connection, and bearings or other connection members that can reduce friction can be added to realize the rotation of the rotating shaft 18 in the shaft tube 15; finally, one end of the tooth plate assembly 2 is connected with both ends of the rotating shaft 18 to ensure that the tooth plate assembly 2 can freely rotate around the rotating shaft 18. The connection between the tooth plate assembly 2 and the rotating shaft 18 can be fixed connection or rotational connection.

[0063] In an alternative embodiment, the threshing tooth plate 5 and the adjustment groove 9 are in a transition fit.

[0064] In the present embodiment, the threshing tooth plate 5 and the adjustment groove 9 are arranged in a clearance fit, and the clearance between the threshing tooth plate 5 and the adjustment groove 9 is small, which can effectively prevent the grain in the rethreshing cavity from escaping from the clearance between the threshing tooth plate 5 and the adjustment groove 9, and also ensure that the threshing tooth plate 5 can move in the adjustment groove 9.

[0065] In an optional embodiment, the plurality of threshing tooth plates 5 are staggered on the bottom plate 7.

[0066] In the embodiment, the plurality of threshing tooth plates 5 are parallel to each other and staggered on the bottom plate 7, which can increase the contact probability between the threshing tooth plates 5 and the grains, thereby improving the rethreshing efficiency.

[0067] In an optional embodiment, the tooth plate seat assembly 1 comprises a seat plate 8, a first connecting end 10 and a second connecting end 11; the first connecting end 10 and the second connecting end 11 are respectively arranged at two ends of the seat plate 8, and are used for fixing the seat plate 8 on the rethreshing cavity 19.

[0068] In the embodiment, the adjusting grooves 9 are arranged on the seat plate 8 and pass through opposite sides of the seat plate 8, which can allow the threshing tooth plates 5 to enter and exit the adjusting grooves 9.

[0069] In the embodiment, the number of the adjusting grooves 9 corresponds to the number of the threshing tooth plates 5, which can ensure that each threshing tooth plate 5 can be inserted into the rethreshing cavity and can avoid that the grains in the rethreshing cavity splash out of the rethreshing cavity through the adjusting grooves 9.

[0070] In the embodiment, the seat plate 8 is fixedly connected with the first connecting end 10 and the second connecting end 11 at two ends, respectively, and corresponding structures are arranged on the first connecting end 10 and the second connecting end 11, which can fix the seat plate 8 on the rethreshing cavity 19.

[0071] Specifically, in the embodiment, the fixed connection modes between the first connecting end 10 and the second connecting end 11 and the seat plate 8 are different, wherein the first connecting end 10 is welded with the seat plate 8, and the second connecting end 11 is integrally arranged with the seat plate 8.

[0072] It can be understood that the fixed connection modes between the first connecting end 10, the second connecting end 11 and the seat plate 8 can be the above-mentioned modes, or other fixed connection modes, such as bolted connection, as long as the first connecting end 10 and the second connecting end 11 can be fixedly connected with the seat plate 8.

[0073] In an optional embodiment, the first connecting end 10 is provided with a connecting hole 12.

[0074] In the embodiment, after the connecting hole 12 is arranged on the first connecting end 10, the first connecting end 10 can be fixedly arranged on the rethreshing cavity 19 through a bolt.

[0075] The utility model also provides a harvester which comprises the rethreshing device of any one of the preceding embodiments.

[0076] The embodiment of the utility model has the advantages of:

[0077] By adjusting the angle between the tooth plate assembly 2 and the tooth plate seat assembly 1 through the adjusting seat 3, the coincidence of the threshing tooth plate 5 and the tooth plate seat assembly 1 is adjusted, so that the height of the tooth plate assembly 2 in the secondary threshing cavity is adjusted, and the secondary threshing device can process different varieties and different growth states of rice secondary threshing, and meet diversified operation requirements.

[0078] The preferred embodiments of the present application are described above only and are not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rethreshing apparatus characterized in that, The device comprises a tooth plate assembly, a tooth plate seat assembly, a rotating connecting seat and an adjusting seat. The rotating connecting seat and the adjusting seat are arranged on the tooth plate seat assembly. One end of the tooth plate assembly is rotatably connected with the tooth plate seat assembly through the rotating connecting seat. The other end of the tooth plate assembly is detachably connected with the tooth plate seat assembly through the adjusting seat, and the angle between the tooth plate assembly and the tooth plate seat assembly can be adjusted. The tooth plate assembly comprises a bottom plate and a plurality of threshing tooth plates arranged on the same side of the bottom plate. The tooth plate seat assembly is provided with a plurality of adjusting grooves, and the threshing tooth plates are arranged through the adjusting grooves for threshing grains.

2. The double degraining device of claim 1, wherein A plurality of adjusting holes are arranged on the threshing tooth plates, and the adjusting seat matches with different adjusting holes to adjust the tooth plate assembly.

3. The double degraining device of claim 2, wherein The adjusting seat comprises a pin shaft ear plate, an adjusting pin and a locking member. The pin shaft ear plate is provided with a positioning pin hole corresponding to the adjusting hole of at least one of the threshing tooth plates, and the adjusting pin can match with different adjusting holes after passing through the positioning pin hole to adjust the tooth height of the threshing tooth plate after passing through the adjusting groove. The locking member is arranged at one end of the adjusting pin to axially lock the adjusting pin.

4. The double degraining device of claim 3, wherein When the adjusting pin is inserted into any of the adjusting holes, the remaining adjusting holes are arranged inside or outside the tooth plate seat assembly.

5. The double degraining device of claim 1, wherein The rotating connecting seat comprises a shaft tube and a rotating shaft. The rotating shaft is arranged through the shaft tube, and both ends of the rotating shaft are rotatably connected with the tooth plate assembly.

6. The double degraining device of claim 1, wherein The threshing tooth plate and the adjusting groove are in transition fit.

7. The double degraining device of claim 1, wherein The plurality of threshing tooth plates are arranged staggered on the bottom plate.

8. The double degraining device of claim 1, wherein The tooth plate seat assembly comprises a seat plate, a first connecting end and a second connecting end. The first connecting end and the second connecting end are arranged at both ends of the seat plate respectively to fix the seat plate on the double-threshing cavity.

9. The double degraining device of claim 8, wherein The first connecting end is provided with a connecting hole.

10. A harvester characterized by The device comprises the double-threshing device according to any one of claims 1-9.