Harvester gap bridge and combine harvester

Abstract

The utility model relates to the field of agricultural harvesting machinery, and discloses a harvester gap bridge and a combine harvester, the harvester gap bridge comprises an upper shaft, two driving chain wheels, a first half cylinder and a second half cylinder, the two driving chain wheels are respectively and fixedly sleeved on the upper shaft and are distributed at intervals along the axial direction of the upper shaft; the outer surface of the first half cylinder and the outer surface of the second half cylinder are smooth arc surfaces, the first half cylinder and the second half cylinder are detachably connected in an involution mode to form a long anti-winding cylinder, the long anti-winding cylinder is arranged on the periphery of the upper shaft in a sleeving mode and arranged between the two driving chain wheels, and the two ends of the long anti-winding cylinder are fixedly connected to hubs of the two driving chain wheels in a sleeving mode respectively. According to the gap bridge of the harvester, the problem that a transmission system is damaged due to material blockage can be avoided, the working efficiency of the harvester is remarkably improved, the maintenance cost is reduced, the long anti-winding cylinder is convenient to disassemble and assemble, and the installation and maintenance time of the gap bridge of the harvester can be effectively shortened.

Description

Technical Field

[0001] The utility model belongs to the field of agricultural harvesting machinery, and in particular relates to a harvester bridge and a combine harvester. Background Art

[0002] In a combine harvester, the overdrive is a material conveying device installed between the harvesting table and the threshing unit, used to evenly and continuously transport material from the harvesting table to the threshing unit. The upper shaft, acting as the active drive shaft for the overdrive, often becomes entangled in materials such as straw, leading to material blockages during operation. This blockage can damage the drivetrain, reducing combine harvester productivity and increasing maintenance costs. Utility Model Content

[0003] In view of the above-mentioned deficiencies or defects in the prior art, the present invention provides a harvester bridge and a combine harvester, aiming to solve the technical problem that the upper shaft of the bridge is easily entangled by materials such as straw, resulting in material blockage and damage to the transmission system.

[0004] To achieve the above-mentioned purpose, the present invention provides a harvester bridge, which comprises:

[0005] upper axis;

[0006] Two driving sprockets are respectively fixedly sleeved on the upper shaft and spaced apart along the axial direction of the upper shaft;

[0007] A first half-cylinder and a second half-cylinder, wherein the outer surfaces of the first half-cylinder and the second half-cylinder are smooth arc surfaces, and the first half-cylinder and the second half-cylinder are detachably connected to form a long anti-winding cylinder, and the long anti-winding cylinder is sleeved on the outer periphery of the upper shaft and arranged between the two driving sprockets, and the two ends of the long anti-winding cylinder are respectively fixedly sleeved on the hubs of the two driving sprockets.

[0008] Optionally, the first semi-cylinder is smoothly connected to a first flat plate and a second flat plate on both sides along the width direction, and the second semi-cylinder is smoothly connected to a third flat plate and a fourth flat plate on both sides along the width direction, the first straight plate is detachably overlapped on the third flat plate, and the fourth straight plate is detachably overlapped on the second flat plate.

[0009] Optionally, the first straight plate and the third straight plate, and the fourth straight plate and the second straight plate are fastened together by round head bolts.

[0010] Optionally, connecting nuts are welded to the inner side surfaces of the third flat plate and the second flat plate, and through holes for the round head bolts to pass through are opened at positions corresponding to the connecting nuts.

[0011] Optionally, the outer peripheral surface of the hub of the driving sprocket is formed with a first mounting plane and a second mounting plane that are relatively arranged, and the ends of the first straight plate and the third straight plate are detachably overlapped on the first mounting plane, and the ends of the fourth straight plate and the second straight plate are detachably overlapped on the second mounting plane.

[0012] Optionally, the opening of the lap joint between the first straight plate and the third straight plate faces the rotation direction of the upper shaft, and the opening of the lap joint between the fourth straight plate and the second straight plate faces the rotation direction of the upper shaft.

[0013] Optionally, elongated holes are provided at the ends of the first half-cylinder and the second half-cylinder, the length direction of the elongated holes is consistent with the axial direction of the upper shaft, and fasteners are passed through the elongated holes to connect with the hub of the driving sprocket to fasten the ends of the first half-cylinder and the second half-cylinder to the hub of the driving sprocket.

[0014] Optionally, the harvester bridge also includes a short anti-entanglement cylinder, which is sleeved on the outer periphery of the main shaft and located between the driving sprocket and the bridge shell of the harvester bridge, and one end of the short anti-entanglement cylinder is fastened to the bridge shell.

[0015] Optionally, an annular flange is provided around the outer edge of one end of the short anti-winding cylinder, and the annular flange is fitted on the bridge housing and detachably fastened to the bridge housing via fasteners.

[0016] The utility model also provides a combine harvester, which comprises the above-mentioned harvester bridge.

[0017] Through the above technical solution, in the harvester bridge of the present invention, a long anti-entanglement cylinder is provided on the outer periphery of the upper shaft, and the long anti-entanglement cylinder is formed by connecting a first half-cylinder and a second half-cylinder with a smooth arc surface on the outer surface. Such a setting can prevent materials such as straw from being entangled in the gap between the upper shaft and the upper shaft and the driving sprocket, thereby avoiding the problem of material blockage causing damage to the transmission system, significantly improving the working efficiency of the harvester and reducing maintenance costs; in addition, the long anti-entanglement cylinder is formed by the first half-cylinder and the second half-cylinder through a detachable coupling connection and is installed by fixing the two ends to the hubs of the two driving sprockets. Such a setting does not require additional structures for fixing the long anti-entanglement cylinder, thereby ensuring the simplicity of the structure. At the same time, it can effectively improve the convenience of disassembly and assembly of the long anti-entanglement cylinder, and effectively reduce the time for installation and maintenance of the harvester bridge.

[0018] Other features and advantages of the present invention will be described in detail in the subsequent specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a structural diagram of a harvester bridge in one embodiment of the present utility model;

[0021] Figure 2 for Figure 1 A side view of a harvester crossing a bridge;

[0022] Figure 3 for Figure 1 Schematic diagram of the structure of the driving sprocket;

[0023] Figure 4 for Figure 1 Schematic diagram of the structure of the first half cylinder and the second half cylinder.

[0024] Description of reference numerals:

[0025] 1 Upper shaft 6 Second flat plate

[0026] 2 Driving sprocket 7 Third straight plate

[0027] 3 First half cylinder 8 Fourth flat plate

[0028] 4 Second half cylinder 9 short anti-entanglement cylinder

[0029] 5 First flat plate 10 Bridge housing DETAILED DESCRIPTION

[0030] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0032] In the present invention, unless otherwise specified, the directions or positional relationships indicated by directional words such as "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0033] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0034] The utility model firstly provides a harvester bridge.

[0035] In one embodiment, referring to the attached Figure 1 and attached Figure 2 As shown, the harvester crossing the bridge includes:

[0036] Upper axis 1;

[0037] Two driving sprockets 2 are respectively fixedly sleeved on the upper shaft 1 and spaced apart along the axial direction of the upper shaft 1;

[0038] The first half cylinder 3 and the second half cylinder 4 have outer surfaces that are smooth arc surfaces. The first half cylinder 3 and the second half cylinder 4 are detachably connected to form a long anti-winding cylinder. The long anti-winding cylinder is sleeved on the outer periphery of the upper shaft 1 and arranged between the two driving sprockets 2. The two ends of the long anti-winding cylinder are respectively fixedly sleeved on the hubs of the two driving sprockets 2.

[0039] In the harvester bridge of this embodiment, a long anti-entanglement cylinder is sleeved on the outer periphery of the upper shaft 1, and the long anti-entanglement cylinder is formed by connecting a first half-cylinder 3 and a second half-cylinder 4 with a smooth arc surface on the outer surface. Such an arrangement can prevent materials such as straw from being entangled in the gap between the upper shaft 1 and the upper shaft 1 and the driving sprocket 2, thereby avoiding the problem of material blockage causing damage to the transmission system, significantly improving the working efficiency of the harvester and reducing maintenance costs; in addition, the long anti-entanglement cylinder is formed by the first half-cylinder 3 and the second half-cylinder 4 through a detachable coupling connection and is installed by fixing the two ends to the hubs of the two driving sprockets 2 respectively. Such an arrangement does not require additional structures for fixing the long anti-entanglement cylinder, ensuring the simplicity of the structure. At the same time, it can effectively improve the convenience of disassembly and assembly of the long anti-entanglement cylinder, and effectively reduce the time for installation and maintenance of the harvester bridge.

[0040] It should be noted that the conveying mechanism composed of the upper shaft 1, the driving sprocket 2 and the like in the harvester bridge and the material conveying operation mechanism of the harvester bridge are well known to those skilled in the art and do not belong to the improvement core of the utility model, and thus will not be described in detail.

[0041] In one embodiment, referring to Figs. 1 to 3, Figure 1 , Figs. 4 to 6, Figure 2 and Figs. 7 to 9, Figure 4 it is shown that the two side edges of the first half cylinder 3 along the width direction are respectively and smoothly connected with the first flat plate 5 and the second flat plate 6, the two side edges of the second half cylinder 4 along the width direction are respectively and smoothly connected with the third flat plate 7 and the fourth flat plate 8, the first flat plate 5 is detachably overlapped on the third flat plate 7, and the fourth flat plate 8 is detachably overlapped on the second flat plate 6. In this way, the first half cylinder 3 and the second half cylinder 4 are easily connected.

[0042] Specifically, the first flat plate 5 and the second flat plate 6 can be integrally formed on the two side edges of the first half cylinder 3, and the third flat plate 7 and the fourth flat plate 8 can be integrally formed on the two side edges of the second half cylinder 4.

[0043] Of course, in other embodiments, other connection methods can also be used between the first half cylinder 3 and the second half cylinder 4, for example, the two side edges of the first half cylinder 3 along the width direction and the two side edges of the second half cylinder 4 along the width direction are connected by the concave-convex fitting method.

[0044] In one embodiment, the first flat plate 5 and the third flat plate 7 are connected by round head bolts, and the fourth flat plate 8 and the second flat plate 6 are also connected by round head bolts.

[0045] It can be understood that the head of the round head bolt is smooth, which can effectively prevent the material such as wheat straw from winding, and can further improve the anti-winding reliability of the long anti-winding cylinder while ensuring the connection strength between the first half cylinder 3 and the second half cylinder 4.

[0046] In one embodiment, referring to Figs. 1 to 3, Figure 4 it is shown that the inner side surfaces of the third flat plate 7 and the second flat plate 6 are both welded with connecting nuts, and the positions corresponding to the connecting nuts are both provided with through holes for the round head bolts to pass through. In this way, during the connection process, the bolts are connected with the connecting nuts through the through holes, which improves the installation convenience.

[0047] In one embodiment, referring to Figs. 1 to 3, Figure 3As shown, the outer circumference of the hub of the driving sprocket 2 is formed with a first mounting surface and a second mounting surface arranged opposite each other. The ends of the first and third flat plates 5 and 7 are removably attached to the first mounting surface, while the ends of the fourth and second flat plates 8 and 6 are removably attached to the second mounting surface. This arrangement allows the hub of the driving sprocket 2 to fit snugly within the long anti-winding cylinder, preventing materials such as straw from becoming entangled in the gap between the hub and the long anti-winding cylinder.

[0048] In one embodiment, referring to the attached Figure 2 As shown, the opening of the lap joint between the first and third straight plates 5, 7 faces the direction of rotation of the upper shaft 1, while the opening of the lap joint between the fourth and second straight plates 8, 6 faces the direction of rotation of the upper shaft 1. This arrangement effectively prevents straw and other materials from becoming entangled in the lap joint between the first and third straight plates 5, 7, or between the fourth and second straight plates 8, 6, causing the long anti-entanglement cylinder to expand.

[0049] In one embodiment, referring to the attached Figure 4 As shown, the ends of the first and second half-cylinders 3, 4 are provided with elongated holes, the length of which aligns with the axial direction of the upper shaft 1. Fasteners pass through the elongated holes and connect to the hub of the driving sprocket 2, thereby securing the ends of the first and second half-cylinders 3, 4 to the hub of the driving sprocket 2. This arrangement effectively reduces the difficulty of installing the long anti-winding cylinder between the two driving sprockets 2.

[0050] In one embodiment, referring to the attached Figure 1 As shown, the harvester bridge also includes a short anti-winding cylinder 9, which is mounted on the outer periphery of the main shaft and located between the driving sprocket 2 and the bridge housing 10 of the harvester bridge. One end of the short anti-winding cylinder 9 is firmly connected to the bridge housing 10. This arrangement prevents straw and other materials from becoming entangled in the section of the upper shaft 1 between the driving sprocket 2 and the bridge housing 10.

[0051] Specifically, an annular flange is provided around the outer edge of one end of the short anti-entanglement cylinder 9 , and the annular flange is fitted on the bridge housing 10 and is detachably fastened to the bridge housing 10 by fasteners.

[0052] The present invention further provides a combine harvester including the above-described harvester bridge. The specific structure of the harvester bridge is similar to that of the above-described embodiments. Since the present combine harvester utilizes all the technical solutions of all the above-described embodiments, it at least has all the beneficial effects brought about by the technical solutions of the above-described embodiments, and therefore, no further details will be given here.

[0053] In the description of this utility model, it should be understood that 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 technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0054] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0056] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A harvester bridge, characterized in that: The harvester bridge crossing comprises: Upper shaft (1); Two driving sprockets (2) are respectively fixedly sleeved on the upper shaft (1) and spaced apart along the axial direction of the upper shaft (1); A first half-cylinder (3) and a second half-cylinder (4), wherein the outer surfaces of the first half-cylinder (3) and the second half-cylinder (4) are smooth arc surfaces, and the first half-cylinder (3) and the second half-cylinder (4) are detachably connected to form a long anti-winding cylinder, wherein the long anti-winding cylinder is sleeved on the outer periphery of the upper shaft (1) and arranged between the two driving sprockets (2), and the two ends of the long anti-winding cylinder are respectively fixedly sleeved on the hubs of the two driving sprockets (2).

2. The harvester bridge according to claim 1, characterized in that: The first half-cylinder (3) is smoothly connected to a first straight plate (5) and a second straight plate (6) on both sides along the width direction, and the second half-cylinder (4) is smoothly connected to a third straight plate (7) and a fourth straight plate (8) on both sides along the width direction, the first straight plate (5) is detachably connected to the third straight plate (7), and the fourth straight plate (8) is detachably connected to the second straight plate (6).

3. The harvester bridge according to claim 2, characterized in that: The first straight plate (5) and the third straight plate (7), as well as the fourth straight plate (8) and the second straight plate (6) are fastened together by round head bolts.

4. The harvester bridge according to claim 3, characterized in that: The inner side surfaces of the third straight plate (7) and the second straight plate (6) are both welded with connecting nuts, and through holes for the round head bolts to pass through are provided at positions corresponding to the connecting nuts.

5. The harvester bridge according to claim 2, characterized in that: The outer peripheral surface of the hub of the driving sprocket (2) is formed with a first mounting plane and a second mounting plane which are arranged opposite to each other; the ends of the first straight plate (5) and the third straight plate (7) are detachably overlapped on the first mounting plane; and the ends of the fourth straight plate (8) and the second straight plate (6) are detachably overlapped on the second mounting plane.

6. The harvester bridge according to claim 5, characterized in that: The opening of the lap joint between the first straight plate (5) and the third straight plate (7) faces the rotation direction of the upper shaft (1), and the opening of the lap joint between the fourth straight plate (8) and the second straight plate (6) faces the rotation direction of the upper shaft (1).

7. The harvester bridge according to claim 1, characterized in that: The ends of the first half-cylinder (3) and the second half-cylinder (4) are provided with elongated holes, the length direction of which is consistent with the axial direction of the upper shaft (1). Fasteners are passed through the elongated holes and connected to the hub of the driving sprocket (2) to fasten the ends of the first half-cylinder (3) and the second half-cylinder (4) to the hub of the driving sprocket (2).

8. The harvester bridge according to claim 1, characterized in that: The harvester bridge further comprises a short anti-winding cylinder (9), which is sleeved on the outer periphery of the main shaft and located between the driving sprocket (2) and the bridge housing (10) of the harvester bridge, and one end of the short anti-winding cylinder (9) is firmly connected to the bridge housing (10).

9. The harvester bridge according to claim 8, characterized in that: An annular flange is provided around the outer edge of one end of the short anti-entanglement cylinder (9), and the annular flange is fitted on the bridge housing (10) and is detachably fastened to the bridge housing (10) via a fastener.

10. A combine harvester, characterized in that: The combine harvester comprises the harvester bridge according to any one of claims 1 to 9.

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