Cleaning screen frame and harvesting machine

Abstract

The utility model relates to the technical field of harvesting machinery, in particular to a cleaning screen frame and a harvesting machine.The cleaning screen frame comprises a plurality of bearing beams used for bearing a cleaning screen and two connecting beams used for being in transmission connection with a screening drive, the connecting beams extend in the first direction, and the two connecting beams are oppositely arranged in the second direction; the multiple bearing beams are arranged between the two connecting beams at intervals in the first direction, and the two ends, in the second direction, of each bearing beam are detachably connected with the two connecting beams correspondingly. According to the cleaning screen frame and the harvesting machine, on one hand, the space for containing the cleaning screen is defined by the two adjacent bearing beams and the two connecting beams; and on the other hand, the two ends of each bearing beam are detachably connected with the connecting beams, once the cleaning screen frame is damaged, only the bearing beams and / or the connecting beams at the damaged positions can be replaced, and the maintenance cost is effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of harvesting machinery, and in particular to a cleaning sieve frame and a harvesting machinery. Background Art

[0002] With the development and maturity of harvesting machinery, harvesting machinery has gradually developed towards high quality and high reliability.

[0003] Harvesting machinery usually has a cleaning system for screening seeds. The cleaning system generally includes a cleaning sieve, a frame, and a screening drive. The screening drive usually drives the cleaning sieve to perform a reciprocating screening motion via the frame. The frame and the components used to connect the cleaning sieve, the frame, and the screening drive are extremely prone to damage or even fracture due to impact fatigue under the impact of reciprocating loads. However, the current cleaning sieve frame is usually an integrally formed structure. Once it breaks, the entire frame needs to be replaced, which not only requires the overall disassembly and replacement of the cleaning system, making the maintenance operation complex; but also the cost of frame replacement parts is relatively high, and the maintenance is expensive. Summary of the Utility Model

[0004] The purpose of the present application is to provide a cleaning sieve frame and a harvesting machinery, so as to solve to a certain extent the technical problems existing in the prior art that the current cleaning sieve frame is usually an integrally formed structure. Once it breaks, the entire frame needs to be replaced, which not only requires the overall disassembly and replacement of the cleaning system, making the maintenance operation complex; but also the cost of frame replacement parts is relatively high, and the maintenance is expensive.

[0005] According to a first aspect of the present application, a cleaning sieve frame is provided, including a plurality of supporting beams for supporting the cleaning sieve and two connecting beams for drivingly connecting with the screening drive. The connecting beams extend along a first direction, the two connecting beams are arranged opposite to each other along a second direction, the plurality of supporting beams are arranged at intervals along the first direction between the two connecting beams, and two ends of each supporting beam in the second direction are respectively detachably connected to the two connecting beams, and the first direction intersects with the second direction.

[0006] Preferably, it further includes a connecting support. The supporting beam and the connecting beam are connected via the connecting support;

[0007] Wherein, the connecting support includes a first connecting portion and a second connecting portion fixedly connected to each other. The first connecting portion is detachably connected to the supporting beam, and the second connecting portion is detachably connected to the connecting beam.

[0008] Preferably, both the supporting beam and the first connecting portion extend along the second direction;

[0009] One of the supporting beam and the first connecting portion is provided with a connecting hole extending in the second direction, and the second of the supporting beam and the first connecting portion can be inserted into the first through the connecting hole.

[0010] Preferably, the connecting support further includes a first fixing member. When the supporting beam and the first connecting portion are in an inserted state, the first fixing member can penetrate through the overlapping portion of the supporting beam and the first connecting portion perpendicular to the second direction.

[0011] Preferably, the supporting beam is a hollow beam, and the connecting hole is part of the hollow structure of the hollow beam.

[0012] Preferably, both the connecting beam and the second connecting portion are plate-shaped, and the second connecting portion is attached to the side portion of the connecting beam;

[0013] The connecting support further includes a second fixing member, and the second fixing member penetrates through both the connecting beam and the second connecting portion in the second direction.

[0014] Preferably, the connecting beam is provided with a first through hole penetrating through the connecting beam in the second direction;

[0015] The first connecting portion passes through the first through hole to be connected to the supporting beam, and the second connecting portion is attached to the side of the connecting beam facing away from the supporting beam.

[0016] Preferably, the connecting support further includes a stabilizing pile, and both the stabilizing pile and the first connecting portion are arranged on the same side of the second connecting portion;

[0017] A second through hole is provided at a corresponding position of the connecting beam. When the first connecting portion is in a state of passing through the first through hole, the stabilizing pile is inserted into the second through hole.

[0018] Preferably, the number of the supporting beams is two, and the two supporting beams are respectively arranged at two ends of the connecting beam in the first direction;

[0019] The connecting beam further includes a driving connection portion for driving connection with the screening drive, and the driving connection portion is arranged at a portion of the connecting beam between the two supporting beams.

[0020] According to a second aspect of the present application, a harvesting machine is provided, including the cleaning sieve frame according to any of the above technical solutions. Therefore, it has all the beneficial technical effects of the cleaning sieve frame, and will not be elaborated here.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] The cleaning sieve frame provided by this application arranges multiple supporting beams spaced along the second direction between two connecting beams, and makes the two ends of each supporting beam in the second direction detachably connected to the two connecting beams respectively. In this way, on the one hand, the adjacent two supporting beams and the two connecting beams enclose a space for accommodating the cleaning sieve; on the other hand, the two ends of each supporting beam are detachably connected to the connecting beam. Once the cleaning sieve frame is damaged, it is possible to replace only the supporting beam and / or the connecting beam at the damaged position, effectively reducing the maintenance cost.

[0023] To make the above objects, features, and advantages of this application more obvious and understandable, the following specifically gives preferred embodiments and, in conjunction with the accompanying drawings, makes a detailed description as follows. Description of the Drawings

[0024] To more clearly illustrate the specific embodiments of this application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 Isometric structural schematic diagram of the cleaning sieve frame provided in the first embodiment of this application;

[0026] Figure 2 Exploded structural schematic diagram of the cleaning sieve frame provided in the first embodiment of this application;

[0027] Figure 3 Isometric structural schematic diagram of the cleaning sieve frame provided in the second embodiment of this application;

[0028] Figure 4 Exploded structural schematic diagram of the cleaning sieve frame provided in the second embodiment of this application;

[0029] Figure 5 Partial structural schematic diagram of the cleaning sieve frame provided in the embodiment of this application;

[0030] Figure 6 Another partial structural schematic diagram of the cleaning sieve frame provided in the embodiment of this application;

[0031] Figure 7 Another partial structural schematic diagram of the cleaning sieve frame provided in the embodiment of this application;

[0032] Figure 8 Another partial structural schematic diagram of the cleaning sieve frame provided in the embodiment of this application.

[0033] Reference Signs:

[0034] 1 - Support beam; 2 - Connecting beam; 211 - Clamping groove; 212 - Mounting hole; 221 - First through hole; 3 - Connecting support; 31 - First connecting part; 32 - Second connecting part; 33 - Stabilizing pile; 341 - First fixing part; 342 - Second fixing part.

[0035] F1 - First direction; F2 - Second direction; F3 - Third direction. Detailed implementation manners

[0036] The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present application.

[0037] Generally, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application.

[0038] All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts fall within the scope of protection of the present application.

[0039] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0041] The following refers to Figures 1 to 8 Describe a cleaning sieve frame and a harvesting machine according to some embodiments of the present application.

[0042] Refer to Figures 1 to 8As shown in the figure, an embodiment of the first aspect of the present application provides a cleaning sieve frame, which includes a plurality of supporting beams 1 for supporting the cleaning sieve and two connecting beams 2 for drivingly connecting with the screening drive. The connecting beams 2 extend along the first direction F1, and the two connecting beams 2 are arranged opposite to each other along the second direction F2. The plurality of supporting beams 1 are arranged at intervals along the first direction F1 between the two connecting beams 2, and both ends of each supporting beam 1 in the second direction F2 are detachably connected to the two connecting beams 2 respectively.

[0043] For the cleaning sieve frame provided according to the above technical features, by arranging a plurality of supporting beams 1 arranged at intervals along the second direction F2 between the two connecting beams 2, and making both ends of each supporting beam 1 in the second direction F2 be detachably connected to the two connecting beams 2 respectively. In this way, on the one hand, an adjacent two supporting beams 1 and the two connecting beams 2 enclose a space for accommodating the cleaning sieve; on the other hand, both ends of each supporting beam 1 are detachably connected to the connecting beams 2. Once the cleaning sieve frame is damaged, it is possible to replace only the supporting beam 1 and / or the connecting beam 2 at the damaged position, effectively reducing the maintenance cost.

[0044] As Figures 1 to 4 shown in the figure, F1 shown in the figure can be an example of the above-mentioned first direction F1. F1 shown in the figure can be an example of the above-mentioned first direction F1, and the first direction F1 intersects with the second direction F2. Preferably, an example where the first direction F1 is perpendicular to the second direction F2 is shown in the figure to facilitate adapting to the structures of most current harvesting machines. For the sake of convenience of description, the direction perpendicular to the plane determined by both the first direction F1 and the second direction F2 is defined as the third direction F3, and F3 shown in the figure can be an example of the above-mentioned third direction F3.

[0045] It should be noted that, in order to show the connection structure of each part of the cleaning sieve frame, Figure 1 、 Figure 3 、 Figure 7 and Figure 8 the cleaning sieve frame structures shown in are all subjected to perspective processing (that is, the transparency of the solid structure is lowered to show the structures that should be blocked by the solid structure).

[0046] Preferably, as Figures 1 to 8As shown, the above-mentioned cleaning sieve frame may further include a connecting support 3. The above-mentioned supporting beam 1 and connecting beam 2 are connected via the connecting support 3. Among them, the connecting support 3 includes a first connecting portion 31 and a second connecting portion 32 that are fixedly connected to each other. The first connecting portion 31 is detachably connected to the supporting beam 1, and the second connecting portion 32 is detachably connected to the connecting beam 2. In the existing cleaning sieve frame, the probability of fracture damage at the connection position between beams (for example, the supporting beam 1 and the connecting beam 2) during use is relatively high. Thus, the cleaning sieve frame of the present application connects the supporting beam 1 and the connecting beam 2 via the connecting support 3 that can be detachably connected to both the supporting beam 1 and the connecting beam 2. Once the connection position between beams (for example, the supporting beam 1 and the connecting beam 2) is fractured and damaged, the repair of the cleaning sieve frame can be achieved only by replacing the connecting support 3, so as to further reduce the repair cost.

[0047] As Figures 1 to 8 shown, both the above-mentioned supporting beam 1 and the first connecting portion 31 extend along the second direction F2. Preferably, as Figure 1 , Figure 2 , Figures 5 to 7 shown, the above-mentioned supporting beam 1 may be provided with a connecting hole extending along the second direction F2, and the first connecting portion 31 can be inserted into the supporting beam 1 via the connecting hole. Thus, through the insertion of the supporting beam 1 and the first connecting portion 31, an overlapping structure appears at the insertion position of the supporting beam 1 and the first connecting portion 31, thereby effectively improving the end strength of the supporting beam 1 in the second direction F2 and further reducing the fracture probability between the supporting beam 1 and the connecting beam 2.

[0048] Preferably, as Figures 5 to 7 shown, the connecting support 3 further includes a first fixing member 341. When the supporting beam 1 and the first connecting portion 31 are in an inserted state, the first fixing member 341 can penetrate through the overlapping part of the supporting beam 1 and the first connecting portion 31 inserted into each other along a direction perpendicular to the second direction F2 to realize the inserted fixation of the supporting beam 1 and the first connecting portion 31.

[0049] Optionally, the above-mentioned first fixing member 341 may be a threaded connecting member such as a bolt or a screw, so as to facilitate the detachable connection between the supporting beam 1 and the first connecting portion 31.

[0050] Preferably, as Figure 4 shown, the above-mentioned supporting beam 1 may be a hollow beam, and the connecting hole is part of the hollow structure of the hollow beam. Thus, on the one hand, the weight of the cleaning sieve frame is effectively reduced, saving the operating energy consumption of the cleaning system; on the other hand, the insertion of the supporting beam 1 and the first connecting portion 31 is realized through the hollow structure of the hollow beam, saving the machining cost of the supporting beam 1.

[0051] However, without being limited thereto, the insertion structure of the above-mentioned supporting beam 1 and the first connecting portion 31 is not limited to the above form. Optionally, as Figure 3 and Figure 8 shown, the above-mentioned connecting hole can also be provided on the first connecting portion 31, and the supporting beam 1 can be inserted into the first connecting portion 31.

[0052] In the embodiment, preferably, as Figures 1 to 8 shown, both the connecting beam 2 and the second connecting portion 32 are in the shape of a plate. The second connecting portion 32 is attached to the side portion of the connecting beam 2. The connecting support 3 can also include a second fixing member 342. The second fixing member 342 penetrates through both the connecting beam 2 and the second connecting portion 32 along the second direction F2 to realize the detachable connection between the second connecting portion 32 and the connecting beam 2.

[0053] Similarly, the above-mentioned second fixing member 342 can also be a threaded connecting member such as a bolt or a screw, so as to facilitate the detachable connection between the connecting beam 2 and the second connecting portion 32.

[0054] Preferably, as Figures 1 to 8 shown, the connecting beam 2 is provided with a first through hole 221 that penetrates through the connecting beam 2 along the second direction F2. The first connecting portion 31 penetrates through the first through hole 221 to be connected to the supporting beam 1. The second connecting portion 32 is attached to the side of the connecting beam 2 facing away from the supporting beam 1. In this way, the first connecting portion 31 penetrates through the connecting beam 2 through the first through hole 221 to be connected to the supporting beam 1. On the one hand, the first connecting portion 31 can play a supporting role for the connecting beam 2, improving the connection stability between the connecting beam 2 and the supporting beam 1; on the other hand, both the supporting beam 1 and the second connecting portion 32 can effectively limit the position of the connecting beam 2 in the second direction F2, improving the stability and installation accuracy of the cleaning sieve frame.

[0055] Preferably, as Figure 3 , Figure 4 and Figure 8 shown, the connecting support 3 further includes a stabilizing pile 33. Both the stabilizing pile 33 and the first connecting portion 31 are provided on the same side of the second connecting portion 32. A second through hole is provided at the corresponding position of the connecting beam 2. When the first connecting portion 31 is in a state of penetrating through the first through hole 221, the stabilizing pile 33 penetrates through the second through hole. In this way, the connection stability between the second connecting portion 32 and the connecting beam 2 is further improved, and the load-bearing of the first connecting portion 31 is shared.

[0056] It should be noted that the above-mentioned first through hole 221, second through hole and connecting hole are holes in a broad sense. In other words, the holes here include closed holes with closed peripheries as Figure 6 shown, and also include open holes with open sides as Figure 5 , Figure 8 shown.

[0057] Preferably, as Figures 1 to 8 shown in the example where the number of the above-mentioned supporting beams 1 is two, and the two supporting beams 1 are respectively arranged at both ends of the connecting beam 2 in the first direction F1. In this way, it is ensured that the connecting beam 2 and the supporting beam 1 can enclose a space sufficient to accommodate the cleaning sieve.

[0058] Preferably, the above-mentioned connecting beam 2 may further include a driving connection part for driving connection with the screening drive, and the driving connection part is arranged at the part of the connecting beam 2 between the two supporting beams 1 to ensure the stable operation of the cleaning sieve during the working process.

[0059] Optionally, as Figure 1 and Figure 2 shown, the figure shows an example where the above-mentioned driving connection part is a clamping groove 211, and the cleaning sieve frame can be clamped with the vibrating part of the screening drive through the clamping groove 211.

[0060] Optionally, as Figure 3 and Figure 4 shown, the figure shows an example where the above-mentioned driving connection part is a mounting hole 212, and the cleaning sieve frame can be threadedly connected with the vibrating part of the screening drive through the mounting hole 212.

[0061] The embodiment of the second aspect of the present application further provides a harvesting machine, including the above-mentioned cleaning sieve, screening drive and the cleaning sieve frame described in any of the above embodiments. Therefore, it has all the beneficial technical effects of the cleaning sieve frame, and will not be elaborated here.

[0062] It should be noted that the cleaning sieve and the screening drive are both existing products in the art and will not be elaborated here.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cleaning screen frame, characterized in that: It includes a plurality of supporting beams for supporting a cleaning screen and two connecting beams for connecting to a screening drive transmission, wherein the connecting beams extend along a first direction, and the two connecting beams are arranged opposite to each other along a second direction, and a plurality of supporting beams are arranged between the two connecting beams at intervals along the first direction, and both ends of each supporting beam in the second direction are detachably connected to the two connecting beams, and the first direction intersects with the second direction.

2. The cleaning screen frame according to claim 1, characterized in that: Also included is a connecting support, through which the supporting beam and the connecting beam are connected; Wherein, the connecting support includes a first connecting portion and a second connecting portion fixedly connected to each other, the first connecting portion is detachably connected to the supporting beam, and the second connecting portion is detachably connected to the connecting beam.

3. The cleaning screen frame according to claim 2, characterized in that: The supporting beam and the first connecting portion both extend along the second direction; The first one of the supporting beam and the first connecting portion is provided with a connecting hole extending along the second direction, and the second one of the supporting beam and the first connecting portion can be plugged into the first one via the connecting hole.

4. The cleaning screen frame according to claim 3, characterized in that: The connecting support further comprises a first fixing member, and when the supporting beam and the first connecting portion are in an inserted state, the first fixing member can penetrate the inserted and overlapping portion of the supporting beam and the first connecting portion in a direction perpendicular to the second direction.

5. The cleaning screen frame according to claim 3, characterized in that: The supporting beam is a hollow beam, and the connecting hole is a part of the hollow structure of the hollow beam.

6. The cleaning screen frame according to any one of claims 2 to 5, characterized in that: The connecting beam and the second connecting portion are both plate-shaped, and the second connecting portion is attached to the side of the connecting beam; The connecting support further includes a second fixing member, and the second fixing member penetrates both the connecting beam and the second connecting portion along the second direction.

7. The cleaning screen frame according to claim 6, characterized in that: The connecting beam is provided with a first through hole penetrating the connecting beam along the second direction; The first connection portion passes through the first through hole and is connected to the supporting beam, and the second connection portion is in contact with a side of the connection beam that is opposite to the supporting beam.

8. The cleaning screen frame according to claim 7, characterized in that: The connection support further comprises a stabilizing pile, wherein both the stabilizing pile and the first connection portion are arranged on the same side of the second connection portion; A second through hole is provided at a corresponding position of the connecting beam, and when the first connecting portion is in a state of penetrating the first through hole, the stabilizing pile is penetrated in the second through hole.

9. The cleaning screen frame according to claim 1, characterized in that: The number of the supporting beams is two, and the two supporting beams are respectively arranged at two ends of the connecting beam in the first direction; The connecting beam further comprises a driving connection portion for transmission connection with the screening drive, wherein the driving connection portion is arranged at a portion of the connecting beam between the two supporting beams.

10. A harvesting machine, characterized in that: The cleaning screen comprises the cleaning screen, the screening drive and the cleaning screen frame according to any one of claims 1 to 9.

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