Cleaning system sealing structure and harvester
By using a pad and limit plate structure in the harvester cleaning system, the problems of wear on the boom bearing and grain leakage are solved, achieving protection and sealing of the boom bearing.
Patent Information
- Application Number
- CN202520703179.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-14
AI Technical Summary
In existing harvester cleaning systems, the boom shaft seat is easily worn due to friction from the sealing plate during reciprocating motion, and the sealing plate is easily lifted, causing grain leakage.
The structure employs a pad and a limiting plate. The sealing plate is movably clamped between the pad and the limiting plate. The lifting rod shaft seat drives the sealing plate to swing, avoiding relative movement. The limiting plate restricts the movement space of the sealing plate, and the pad prevents the sealing plate from directly contacting the lower shell of the cleaning chamber.
It effectively avoids wear on the boom bearing, reduces the risk of the sealing plate being lifted, prevents grain leakage, and improves the sealing performance of the cleaning system.
Smart Images
Figure CN223895000U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of harvesting machinery technology, and in particular to a sealing structure for a cleaning system and a harvester. Background Technology
[0002] As a key component of the harvester, the sealing performance of the cleaning system plays a vital role in improving user experience and product market competitiveness.
[0003] Currently, most harvester cleaning systems use a sealing plate composed of two halves installed at the front of the lower screen box's boom shaft seat, which is then fixed to the lower shell of the cleaning chamber with rivets. However, this design causes the sealing plate to continuously rub against the boom shaft seat during its reciprocating motion, resulting in severe wear. The sealing plate is also prone to being lifted during boom movement, leading to grain leakage. Utility Model Content
[0004] In view of this, the purpose of this application is to provide a sealing structure for a cleaning system and a harvester to solve the problem of easy wear of the boom bearing in the cleaning system of existing harvesters.
[0005] According to a first aspect of this utility model, a sealing structure for a cleaning system is provided, wherein...
[0006] The sealing structure of the cleaning system includes:
[0007] A pad is installed on the outside of the lower housing of the cleaning chamber of the harvester. The pad is located on both sides of the notch in the lower housing of the cleaning chamber. The pad has a stepped structure, including an upper stepped surface and a lower stepped surface.
[0008] A limiting plate is installed on the upper stepped surface of the pad, and a gap is provided between the limiting plate and the lower stepped surface of the pad; and
[0009] A sealing plate is movably clamped between the lower step surface and the limiting plate. The sealing plate covers the outside of the notch. The boom shaft seat of the harvester passes through the notch. The sealing plate is fixed to the boom shaft seat. The boom shaft seat can drive the sealing plate to swing in a first direction.
[0010] Preferably, the number of pads is at least two, and the two pads are respectively disposed on both sides of the notch in the first direction, and the upper step surface and the lower step surface are arranged along the first direction.
[0011] Preferably, the number of limiting plates is at least two, and the two limiting plates are respectively disposed on both sides of the notch in the first direction.
[0012] Preferably, both the pad and the limiting plate are strip-shaped plates, and the extending direction of the pad and the limiting plate is a second direction, which is perpendicular to the first direction. The limiting plate covers the upper step surface and part of the lower step surface of the pad.
[0013] Preferably, a plurality of bolts are provided at intervals along the second direction on the limiting plate, the bolts passing through the upper stepped surfaces of the limiting plate and the pad, and the pad and the limiting plate are fixed to the lower shell of the cleaning chamber by bolts.
[0014] Preferably, the pad and the limiting plate are nylon plates, and the sealing plate is a rubber plate.
[0015] Preferably, during the movement of the sealing plate, at least partially, the two sides of the sealing plate in the first direction are covered by the two limiting plates, and the sealing plate can simultaneously cover the lower step surfaces of the two pads.
[0016] Preferably, the sealing structure of the cleaning system further includes a shielding assembly, which is disposed inside the lower shell of the cleaning chamber. The shielding assembly includes a support plate, a flexible plate, and a pressure plate stacked in sequence. The shielding assembly has a first plate segment and a second plate segment connected to each other. The first plate segment is disposed laterally on the lower side of the notch, and the second plate segment is disposed vertically on the side of the notch near the fan of the harvester.
[0017] Preferably, the sealing structure of the cleaning system further includes a baffle, which is disposed on the inner side of the lower shell of the cleaning chamber. The lower shell of the cleaning chamber has a passage for the auger to pass through below the notch, and the baffle surrounds the upper side of the passage.
[0018] According to a second aspect of the present invention, a harvester is provided, wherein the harvester includes the cleaning system sealing structure as described above.
[0019] The cleaning system sealing structure and harvester of this utility model embodiment have a pad installed on the outside of the lower housing of the cleaning chamber of the harvester, positioned around the notch in the lower housing. A limiting plate is stacked on top of the pad, with a gap between the limiting plate and the pad. A sealing plate is movably clamped between the pad and the limiting plate. The sealing plate covers the outside of the notch to block it and prevent grain leakage. The harvester's boom shaft seat passes through the notch, and the sealing plate is fixed to the boom shaft seat. This arrangement allows the boom shaft seat to drive the sealing plate to swing in a first direction, preventing relative movement between the boom shaft seat and the sealing plate, thus avoiding wear on the boom shaft seat. The limiting plate and the pad restrict the movement space of the sealing plate, preventing it from being lifted during the movement of the boom shaft seat. The pad also prevents direct contact between the sealing plate and the lower housing of the cleaning chamber, reducing the risk of wear on the lower housing. This effectively solves the problem of easy wear on the boom shaft seat in existing harvester cleaning systems.
[0020] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the sealing structure of the cleaning system according to this utility model.
[0023] Figure 2 This is a schematic diagram of a portion of the sealing structure of the cleaning system according to this utility model.
[0024] Figure 3 This is a schematic diagram of another part of the sealing structure of the cleaning system according to this utility model.
[0025] Figure 4 This is a schematic diagram of the shielding component of the sealing structure of the cleaning system according to this utility model.
[0026] Figure 5 This is a schematic diagram of another part of the sealing structure of the cleaning system according to this utility model.
[0027] Reference numerals: 1-pad; 11-upper step surface; 12-lower step surface; 2-limiting plate; 20-bolt; 3-sealing plate; 4-lower shell of cleaning chamber; 40-notch; 41-through port; 5-lifting rod bearing; 6-shielding assembly; 61-support plate; 62-flexible plate; 63-pressure plate; 601-first plate segment; 602-second plate segment; 7-baffle. Detailed Implementation
[0028] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.
[0029] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.
[0030] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.
[0031] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.
[0032] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.
[0033] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.
[0034] The terminology used herein is for the purpose of describing various examples only and is not intended to limit the examples. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.
[0035] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.
[0036] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.
[0037] like Figures 1 to 5 As shown, according to a first aspect of the present invention, a cleaning system sealing structure is provided, which includes a gasket 1, a limiting plate 2, and a sealing plate 3.
[0038] In the following description, reference will be made to Figures 1 to 5 The specific structure of the aforementioned components of the cleaning system's sealing structure and their connection relationships are described in detail.
[0039] like Figures 1 to 5 As shown, in this embodiment, a notch 40 may be formed on the lower housing 4 of the cleaning chamber of the harvester. The notch 40 is used to allow the boom bearing 5 to extend from the lower screen box. During the operation of the harvester, the boom bearing 5 will swing within the notch 40. To prevent grain leakage from the notch 40 and to prevent wear on the boom bearing 5 caused by the sealing components, the sealing structure of the cleaning system can be located at the notch 40 of the harvester.
[0040] Specifically, such as Figures 1 to 5 As shown, in this embodiment, the pad 1 can be installed on the outside of the lower housing 4 of the cleaning chamber of the harvester. The pad 1 can be set on both sides of the notch 40 of the lower housing 4 of the cleaning chamber. The pad 1 has a stepped structure, including an upper stepped surface 11 and a lower stepped surface 12. The limiting plate 2 can be installed on the top of the upper stepped surface 11 of the pad 1, and a gap is provided between the limiting plate 2 and the lower stepped surface 12 of the pad 1. The sealing plate 3 is movably clamped between the lower stepped surface 12 of the pad 1 and the limiting plate 2. The sealing plate 3 can cover the outside of the notch 40 to block the notch 40 and prevent the grains from leaking out of the notch 40. The boom shaft seat 5 of the harvester passes through the notch 40, and the sealing plate 3 is fixed to the boom shaft seat 5. With this configuration, the boom shaft seat 5 can drive the sealing plate 3 in a second direction (such as...). Figure 2 The lateral swing (as shown) prevents relative movement between the boom bearing 5 and the sealing plate 3, thus avoiding wear on the boom bearing 5. Simultaneously, the limiting plate 2 and the pad 1 restrict the movement space of the sealing plate 3, preventing it from being lifted during the movement of the boom bearing 5. The pad 1 prevents direct contact between the sealing plate 3 and the lower housing 4 of the cleaning chamber, reducing the risk of wear on the lower housing 4.
[0041] Preferred, such as Figure 1 and Figure 2 As shown, in this embodiment, the number of pads 1 can be at least two. The two pads 1 can be respectively disposed at the notch 40 in the first direction (e.g., as shown in the figure). Figure 2The notch 40 can be a waist-shaped hole. The two pads 1 can be respectively disposed on both sides of the notch 40 in the width direction. More preferably, the two pads 1 can be disposed close to the edges of both ends of the notch 40 in the length direction to prevent leaked grains from accumulating between the pads 1 and the notch 40, while facilitating the simultaneous placement of both ends of the sealing plate 3 on the two pads 1. The upper stepped surface 11 and the lower stepped surface 12 of the pad 1 are arranged in the first direction.
[0042] Preferred, such as Figure 1 and Figure 2 As shown, in this embodiment, the number of limiting plates 2 can be at least two. The two limiting plates 2 can be respectively disposed at the notch 40 in the first direction (e.g., as shown in the figure). Figure 2 The two limiting plates 2 are positioned on both sides of the sealing plate 3 (vertically as shown), such that they are located on either side of the sealing plate 3. Specifically, the limiting plates 2 are placed on top of the upper stepped surface 11 of the pad 1 (i.e., the limiting plates 2 at least partially overlap the pad 1). The two limiting plates 2 can be respectively set on both sides of the width direction of the notch 40. More preferably, the two limiting plates 2 are placed on the sealing plate 3 simultaneously.
[0043] Furthermore, preferably, such as Figure 1 and Figure 2 and Figure 5 As shown, in this embodiment, the sealing plate 3 can be approximately a rectangular plate. The sealing plate 3 can be made of rubber (i.e., the sealing plate 3 is a rubber sheet), thereby allowing it to be securely mounted on the boom shaft seat 5, preventing relative movement between them. The pad 1 and the limiting plate 2 can be strip-shaped plates. The extending direction of the pad 1 and the limiting plate 2 can be a second direction (such as...). Figure 2 (As shown in the transverse direction). This arrangement allows the pad 1 to partially overlap with the limiting plate 2. The sealing plate 3 is sandwiched between the pad 1 and the limiting plate 2. Preferably, the pad 1 and the limiting plate 2 can be nylon plates, which can improve the sealing performance between the pad 1 and the limiting plate 2 and the sealing plate 3, and reduce the wear on the sealing plate 3 during movement.
[0044] Preferred, such as Figure 1 and Figure 2 and Figure 5As shown, in this embodiment, multiple bolts 20 can be spaced apart along the length direction (i.e., the second direction) of the limiting plate 2 for fixing the limiting plate 2 and limiting the sealing plate 3. Some of the bolts 20 can pass through the upper stepped surface 11 of the pad 1 and the limiting plate 2, thereby connecting the pad 1 and the limiting plate 2 together. The pad 1 and the limiting plate 2 can be fixed to the lower housing 4 of the cleaning chamber by the bolts 20. This arrangement avoids installing the bolts 20 on the movement path of the sealing plate 3, preventing scratching between the bolts 20 and the sealing plate 3.
[0045] Preferred, such as Figure 1 and Figure 2 and Figure 5 As shown, in this embodiment, the width of the sealing plate 3 can be less than the distance between the upper stepped surfaces 11 of the two pads 1. The length of the sealing plate 3 is greater than the length of the pads 1 and the limiting plate 2, and the width of the sealing plate 3 is greater than the distance between the two limiting plates 2. This arrangement ensures that during movement, at least partially, the two sides of the sealing plate 3 in the first direction are covered by the two limiting plates 2, and the sealing plate 3 can simultaneously cover the top of the lower stepped surfaces 12 of the two pads 1. This ensures that the sealing plate 3 is always clamped between the pads 1 and the limiting plates 2, and remains covering the top of the notch 40, preventing seeds from leaking out of the notch 40.
[0046] Preferred, such as Figure 4 As shown, in this embodiment, the sealing structure of the cleaning system may further include a baffle 7. The lower housing 4 of the cleaning chamber may have a passageway 41 below the notch 40 for the auger to pass through. The baffle 7 is used to prevent grains from being lifted by the auger during transport, thus preventing scattered grains from leaking out from the notch 40. The baffle 7 is located inside the lower housing 4 of the cleaning chamber to shield the grains in the lower sieve box. Specifically, the baffle 7 can be a rectangular plate, and its connection with the lower housing 4 of the cleaning chamber may have a flange. The baffle 7 surrounds the upper side of the passageway 41 to block upward-lifted grains. Furthermore, a bend may be formed in the middle of the baffle 7, allowing the baffle 7 to fit more closely to the edge of the passageway 41.
[0047] Further optimized, such as Figure 3 and Figure 4As shown in the embodiment, the sealing structure of the cleaning system may further include a shielding component 6. The shielding component 6 is disposed inside the lower housing 4 of the cleaning chamber. The shielding component 6 is used to prevent the grains from being blown out of the notch 40 by the airflow of the blower during their descent. Specifically, the shielding component 6 may include a support plate 61, a flexible plate 62, and a pressure plate 63 stacked sequentially. The support plate 61 is disposed close to the lower housing 4 of the cleaning chamber, and the flexible plate 62 is clamped and fixed between the support plate 61 and the pressure plate 63. The support plate 61, the flexible plate 62, and the pressure plate 63 can be fixed to the inner wall of the lower housing 4 of the cleaning chamber by rivets. The flexible plate 62 can be a rubber plate. The support plate 61 and the pressure plate 63 can securely install the flexible plate 62 onto the lower housing 4 of the cleaning chamber.
[0048] In addition, preferred, such as Figure 3 and Figure 4 As shown, in this embodiment, the shielding assembly 6 may have a first plate segment 601 and a second plate segment 602 connected to each other. The first plate segment 601 may be laterally disposed on the lower side of the notch 40 to block grains from below. The second plate segment 602 may be vertically disposed on the side of the notch 40 near the blower of the harvester to block grains blown by the airflow. This further prevents grain leakage from the notch 40.
[0049] Furthermore, according to a second aspect of the present invention, a harvester is provided, the harvester including the cleaning system sealing structure as described above.
[0050] During use, the cleaning system's sealing structure employs a sealing plate 3 fixed together with the boom shaft seat 5, preventing relative movement between the boom shaft seat 5 and the sealing plate 3, thus avoiding wear on the boom shaft seat 5. The limiting plate 2 and the pad 1 restrict the movement space of the sealing plate 3, preventing it from being lifted during the movement of the boom shaft seat 5 and reducing the risk of wear on the lower shell 4 of the cleaning chamber.
[0051] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.
Claims
1. A sealing structure for a cleaning system, installed in a harvester, characterized in that, The sealing structure of the cleaning system includes: A pad is installed on the outside of the lower housing of the cleaning chamber of the harvester. The pad is located on both sides of the notch in the lower housing of the cleaning chamber. The pad has a stepped structure, including an upper stepped surface and a lower stepped surface. A limiting plate is installed on the upper stepped surface of the pad, and a gap is provided between the limiting plate and the lower stepped surface of the pad; and A sealing plate is movably clamped between the lower step surface and the limiting plate. The sealing plate covers the outside of the notch. The boom shaft seat of the harvester passes through the notch. The sealing plate is fixed to the boom shaft seat. The boom shaft seat can drive the sealing plate to swing in a first direction.
2. The sealing structure of the cleaning system according to claim 1, characterized in that, The number of pads is at least two, and the two pads are respectively disposed on both sides of the notch in the first direction, with the upper step surface and the lower step surface arranged along the first direction.
3. The sealing structure of the cleaning system according to claim 2, characterized in that, The number of limiting plates is at least two, and the two limiting plates are respectively disposed on both sides of the notch in the first direction.
4. The sealing structure of the cleaning system according to claim 3, characterized in that, Both the pad and the limiting plate are strip-shaped plates. The extending direction of the pad and the limiting plate is a second direction, which is perpendicular to the first direction. The limiting plate covers the upper step surface and part of the lower step surface of the pad.
5. The sealing structure of the cleaning system according to claim 4, characterized in that, Multiple bolts are spaced apart on the limiting plate along the second direction. The bolts pass through the upper stepped surfaces of the limiting plate and the pad. The pad and the limiting plate are fixed to the lower shell of the cleaning chamber by bolts.
6. The sealing structure of the cleaning system according to any one of claims 1 to 5, characterized in that, The pad and the limiting plate are made of nylon, and the sealing plate is made of rubber.
7. The sealing structure of the cleaning system according to claim 4, characterized in that, During the movement of the sealing plate, at least partially, the two sides of the sealing plate in the first direction are covered by the two limiting plates, and the sealing plate can simultaneously cover the lower step surface of the two pads.
8. The sealing structure of the cleaning system according to claim 1, characterized in that, The sealing structure of the cleaning system also includes a shielding assembly, which is disposed inside the lower shell of the cleaning chamber. The shielding assembly includes a support plate, a flexible plate, and a pressure plate stacked in sequence. The shielding assembly has a first plate segment and a second plate segment connected to each other. The first plate segment is disposed laterally below the notch, and the second plate segment is disposed vertically on the side of the notch near the blower of the harvester.
9. The sealing structure of the cleaning system according to claim 1, characterized in that, The sealing structure of the cleaning system also includes a baffle, which is disposed on the inner side of the lower shell of the cleaning chamber. The lower shell of the cleaning chamber has a passage for the auger to pass through below the notch, and the baffle surrounds the upper side of the passage.
10. A harvester, characterized in that, The harvester includes the cleaning system sealing structure as described in any one of claims 1 to 9.