Header convenient to overhaul

Abstract

The utility model discloses a header convenient to overhaul, which relates to the technical field of agricultural mechanical equipment and comprises a chopping mechanism, a feeding mechanism, a first transmission wheel arranged in the chopping mechanism, a second transmission wheel arranged in the feeding mechanism, a transmission belt and a tensioning mechanism used for adjusting the tensioning state of the transmission belt. The first transmission wheel and the second transmission wheel are sleeved with the transmission belt, and the tensioning mechanism is arranged between the first transmission wheel and the second transmission wheel and is in running fit with the transmission belt. The tensioning mechanism comprises a tensioning wheel, a tensioning piece and a tensioning control unit, one end of the tensioning piece is hinged to the outer side wall of the chopping mechanism, the tensioning wheel is rotationally arranged on the tensioning piece and is in rotating fit with the transmission belt, the output end of the tensioning control unit is in transmission connection to the middle of the tensioning piece, and the output end of the tensioning control unit is in transmission connection with the middle of the tensioning piece. The tensioning state of transmission can be controlled and adjusted, and therefore workers can overhaul the harvester conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery and equipment, in particular to a cutting platform which is convenient for maintenance. Background Art

[0002] After the corn harvester finishes harvesting corn stalk fragments and other materials, it needs to crush them before outputting them. In order to achieve the above functions, the corn harvester in the prior art is provided with a corresponding feeding mechanism and a shredding mechanism. The material is fed into the shredding mechanism through the feeding mechanism, and then shredded by the shredding mechanism before outputting it. Therefore, the structural spacing between the feeding mechanism and the shredding mechanism will be relatively small, and since the power of the feeding mechanism and the shredding mechanism are interconnected, the feeding mechanism or the shredding mechanism cannot be pushed separately during the maintenance process, which makes the maintenance difficult and there is a certain maintenance risk. Utility Model Content

[0003] The utility model aims to provide a cutting platform which is easy to repair in view of the deficiencies in the prior art.

[0004] A cutting platform that is easy to repair, comprising a shredding mechanism and a feeding mechanism arranged at the cutting platform, comprising a first transmission wheel arranged in the shredding mechanism, a second transmission wheel arranged in the feeding mechanism, a transmission belt, and a tensioning mechanism for adjusting the tensioning state of the transmission belt, wherein the transmission belt is sleeved on the first transmission wheel and the second transmission wheel, and the tensioning mechanism is arranged between the first transmission wheel and the second transmission wheel and is rotatably matched with the transmission belt;

[0005] The tensioning mechanism includes a tensioning wheel, a tensioning member and a tensioning control unit. One end of the tensioning member is hingedly arranged on the outer side wall of the shredding mechanism. The tensioning wheel is rotatably arranged on the tensioning member. The tensioning wheel is rotatably matched with the transmission belt. The output end of the tensioning control unit is transmission-connected to the middle part of the tensioning member.

[0006] Furthermore, the tensioning member includes a mounting cross frame and a mounting vertical frame, one end of the mounting cross frame is hingedly arranged on the outer side wall of the shredding mechanism, the other end of the mounting cross frame is rotatably cooperated with the tensioning wheel, the mounting vertical frame is arranged in the middle of the mounting cross frame, the mounting cross frame and the mounting vertical frame are arranged in a T shape, and the tensioning control unit is transmission-connected to the side of the mounting vertical frame away from the mounting cross frame.

[0007] Furthermore, the tensioning control unit comprises a driving mechanism and a driving rod, wherein the driving rod is installed at the output end of the driving mechanism, and a driving member is provided on the driving rod, and the driving member is hinged to the mounting frame.

[0008] Furthermore, two limit members are provided on the driving rod, the driving member is slidably set on the driving rod and is located between the two limit members, and a limit spring is sleeved on the driving rod, one end of the limit spring is abutted against the limit member away from the driving mechanism, and the other end is abutted against the driving member.

[0009] Furthermore, the driving mechanism is a hydraulic cylinder.

[0010] Furthermore, the first transmission wheel and the second transmission wheel are in contact with the inner side surface of the transmission belt.

[0011] Furthermore, the tensioning wheel contacts the outer side surface of the transmission belt.

[0012] Furthermore, 1 to 4 transmission belts are provided, the lengths of the transmission belts are the same, and the transmission belts are sleeved in parallel on the first transmission wheel and the second transmission wheel.

[0013] Furthermore, the tensioning member includes an L-arm and a connecting arm, the short side of the L-arm is hinged to the outer wall of the shredding mechanism, the long side of the L-arm is hinged to the output end of the tensioning control unit, the connecting arm is fixedly installed on the short side of the L-arm, and the tensioning wheel is rotatably arranged on the connecting arm.

[0014] Furthermore, it also includes an outer cover shell, which is arranged on the outside of the transmission belt.

[0015] The advantages of the utility model compared with the prior art are:

[0016] First: a tensioning mechanism is provided in the present scheme, and the tensioning control unit is used to drive the tensioning member to flip at a certain angle, thereby controlling the tensioning angle of the tensioning wheel and the transmission belt. The more the tensioning wheel presses down, the greater the tensioning force of the transmission belt is, thereby realizing precise regulation of the tensioning force of the transmission belt. The extension and retraction of the tensioning control unit can drive the swing of the mounting vertical frame, and the mounting vertical frame is driven to swing in a certain direction with the hinge axis of the mounting horizontal frame and the shredding mechanism as the center. The swing of the mounting horizontal frame can drive the movement of the tensioning wheel thereon, thereby controlling the tensioning force of the tensioning wheel and the transmission belt.

[0017] Second: A tensioning control unit is provided in this solution, and the driving member can be confined within a range on the driving rod through the provided limit member, and the driving member can be laterally adjusted on the driving rod during the adjustment process, thereby ensuring the stability of the equipment during the adjustment process. The provided limit spring can apply lateral pressure to the driving member, thereby ensuring the movement stability of the driving member and preventing the driving member from moving in the wrong direction, causing the equipment to be stuck and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the coordination state of the shredding mechanism and the feeding mechanism;

[0019] Figure 2 It is a schematic diagram of the coordination state between the tensioning mechanism and the transmission belt;

[0020] Figure 3 It is a structural schematic diagram of a first embodiment of a tensioning member;

[0021] Figure 4 The structure diagram of the second embodiment of the tensioning member is shown in FIG. Figure 1 ;

[0022] Figure 5 The structure diagram of the second embodiment of the tensioning member is shown in FIG. Figure 2 ;

[0023] Figure 6 The structure diagram of the second embodiment of the tensioning member is shown in FIG. Figure 3 .

[0024] Figure numerals: shredding mechanism 1, first transmission wheel 11, feeding mechanism 2, second transmission wheel 21, tensioning mechanism 3, tensioning wheel 31, tensioning member 32, mounting horizontal frame 321, mounting vertical frame 322, tensioning control unit 33, driving mechanism 331, driving rod 332, driving member 333, limit spring 334, L arm 335, connecting arm 336, transmission belt 4, outer cover shell 5. DETAILED DESCRIPTION

[0025] Combined with Figure 1-6 As shown, a cutting platform that is easy to repair is used on the cutting platform of a corn harvester, including a chopping mechanism 1 and a feeding mechanism 2. Straw fragments and the like are fed into the chopping mechanism 1 through the feeding mechanism 2, and the fed materials are chopped and output through the chopping mechanism 1. The cutting platform includes a first transmission wheel 11 set in the chopping mechanism 1, a second transmission wheel 21 set in the feeding mechanism 2, a transmission belt 4 for ensuring power transmission, and a tensioning mechanism 3 for adjusting the tensioning state of the transmission belt 4. The transmission belt 4 is sleeved on the first transmission wheel 11 and the second transmission wheel 21. The tensioning mechanism 3 is set between the first transmission wheel 11 and the second transmission wheel 21 and is connected to the transmission wheel 11. The belt 4 rotates in coordination. During normal operation, the transmission belt 4 is tensioned by the tensioning mechanism 3. At this time, the transmission belt 4 can realize power transmission between the first transmission wheel 11 and the second transmission wheel 21. The shredding mechanism 1 and the feeding mechanism 2 are driven respectively by the first transmission wheel 11 and the second transmission wheel 21, thereby ensuring the normal operation of the equipment. When maintenance is required, the transmission belt 4 is controlled to be in a relaxed state by the tensioning mechanism 3, and the first transmission wheel 11 and the second transmission wheel 21 are in a disconnected state. At this time, the staff can drive the cutting table for maintenance as needed to prevent the power linkage from causing the equipment to be stuck and inconvenient for manual rotation.

[0026] Preferably, the tensioning mechanism 3 includes a tensioning wheel 31, a tensioning member 32 and a tensioning control unit 33, one end of the tensioning member 32 is hingedly set on the outer wall of the shredding mechanism 1, the tensioning wheel 31 is rotatably set on the tensioning member 32, the tensioning wheel 31 and the transmission belt 4 are rotatably matched, and the output end of the tensioning control unit 33 is transmission-connected to the middle part of the tensioning member 32, and the tensioning member 32 is driven by the tensioning control unit 33 to flip at a certain angle, thereby controlling the tensioning angle between the tensioning wheel 31 and the transmission belt 4, and the more the tensioning wheel 31 presses down the transmission belt 4, the greater the tensioning force of the transmission belt 4 is, thereby realizing precise regulation of the tensioning force of the transmission belt 4.

[0027] Optionally, the first transmission wheel 11 and the second transmission wheel 21 are in contact with the inner side of the transmission belt 4, and the tensioning wheel 31 is in contact with the outer side of the transmission belt 4. At this time, the tensioning wheel 31 is on the outer side of the transmission belt 4, and the tensioning force is increased by moving the tensioning wheel 31 toward the inner side of the transmission belt 4.

[0028] Optionally, the first transmission wheel 11 and the second transmission wheel 21 are in contact with the inner side surface of the transmission belt 4, and the tensioning wheel 31 is in contact with the inner side surface of the transmission belt 4. At this time, the tensioning wheel 31 is on the inner side of the transmission belt 4, and the tensioning force is increased by moving the tensioning wheel 31 toward the outer side of the transmission belt 4.

[0029] The first embodiment of the tensioning member 32: the tensioning member 32 includes a mounting cross frame 321 and a mounting vertical frame 322, one end of the mounting cross frame 321 is hingedly arranged on the outer side wall of the shredding mechanism 1, and the other end of the mounting cross frame 321 is rotatably matched with the tensioning wheel 31, and the mounting vertical frame 322 is arranged in the middle of the mounting cross frame 321, and the mounting cross frame 321 and the mounting vertical frame 322 are arranged in a T shape. The tensioning control unit 33 is transmission-connected to the side of the mounting vertical frame 322 away from the mounting cross frame 321, and the mounting vertical frame 322 can be driven to swing through the extension and contraction of the tensioning control unit 33, and the mounting vertical frame 322 is driven by the mounting vertical frame 322 to swing in a certain direction with the hinge axis of the mounting cross frame 321 and the shredding mechanism 1 as the center, and the swing of the mounting cross frame 321 can drive the movement of the tensioning wheel 31 thereon, thereby controlling the tensioning force of the tensioning wheel 31 and the transmission belt 4.

[0030] Embodiment 2 of the tensioning member 32: The tensioning member 32 includes an L-arm 335 and a connecting arm 336, wherein the short side of the L-arm 335 is hinged to the outer wall of the shredding mechanism 1, and the long side of the L-arm 335 is hinged to the output end of the tensioning control unit 33, and the connecting arm 336 is fixedly mounted on the short side of the L-arm 335. The tensioning wheel 31 is rotatably arranged on the connecting arm 336, so that the L-arm 335 can form a lever structure, and the short arm of the L-arm 335 is controlled to rotate a certain angle with the hinge axis as the center by driving the long arm of the L-arm 335. At the same time, the short arm of the L-arm 335 drives the connecting arm 336 to rotate, thereby controlling the movement of the tensioning wheel 31 and controlling the tension between it and the transmission belt 4.

[0031] Preferably, the tensioning control unit 33 includes a driving mechanism 331 and a driving rod 332, one end of the driving mechanism 331 is hingedly arranged on the shredding mechanism 1 or the feeding mechanism 2, the driving rod 332 is installed at the output end of the driving mechanism 331, and a driving member 333 is arranged on the driving rod 332, and the driving member 333 is hingedly connected to the mounting vertical frame 322. The driving mechanism 331 performs a telescopic action to control the driving rod 332 to drive the driving member 333 to telescope, and the driving member 333 cooperates with the tensioning member 32 to drive the tensioning wheel 31 to perform a tensioning action.

[0032] On this basis, further, two limit members are provided on the driving rod 332, and the driving member 333 is slidably set on the driving rod 332 and is located between the two limit members. A limit spring 334 is sleeved on the driving rod 332, and one end of the limit spring 334 is abutted on the limit member far away from the driving mechanism 331, and the other end is abutted on the driving member 333. The driving member 333 can be limited within a range on the driving rod 332 by the set limit members, and the driving member 333 can be adjusted laterally on the driving rod 332 during the adjustment process, thereby ensuring the stability of the device during the adjustment process, and the driving member 333 can be subjected to lateral pressure by the set limit spring 334, thereby ensuring the movement stability of the driving member 333 and preventing the driving member 333 from moving in the wrong direction and causing the device to be stuck and damaged.

[0033] It can be selected that the driving mechanism 331 is a hydraulic cylinder or an electric push cylinder. During the operation of the corn harvester, it is preferably set to use the hydraulic cylinder as the power source, so as to ensure the stable output of power and improve the driving stability of the equipment.

[0034] Preferably, 1-4 transmission belts 4 are provided, and the lengths of the transmission belts 4 are the same. The transmission belts 4 are arranged in parallel on the first transmission wheel 11 and the second transmission wheel 21. By arranging multiple transmission belts 4, the transmission force on the first transmission wheel 11 and the second transmission wheel 21 can be balanced, thereby improving the stability of power transmission. In combination with the specific transmission requirements of this scheme, three mutually parallel transmission belts 4 are preferably used.

[0035] Preferably, an outer cover shell 5 is provided on the outside of the transmission belt 4. The outer cover shell 5 is a semi-enclosed structure. The outer cover shell 5 is not provided on the side where the tensioning mechanism 3 is provided. The transmission belt 4 can be protected by the outer cover shell 5, and the transmission can be limited at the same time to prevent the transmission belt 4 from falling off when it is in a relaxed state.

[0036] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", 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 representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0039] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A cutting platform that is easy to maintain, comprising a chopping mechanism (1) and a feeding mechanism (2) arranged at the cutting platform, characterized in that: The invention comprises a first transmission wheel (11) arranged in a shredding mechanism (1), a second transmission wheel (21) arranged in a feeding mechanism (2), a transmission belt (4), and a tensioning mechanism (3) for adjusting the tensioning state of the transmission belt (4); the transmission belt (4) is sleeved on the first transmission wheel (11) and the second transmission wheel (21); the tensioning mechanism (3) is arranged between the first transmission wheel (11) and the second transmission wheel (21) and is rotationally matched with the transmission belt (4); The tensioning mechanism (3) comprises a tensioning wheel (31), a tensioning member (32) and a tensioning control unit (33); one end of the tensioning member (32) is hingedly arranged on the outer wall of the shredding mechanism (1); the tensioning wheel (31) is rotatably arranged on the tensioning member (32); the tensioning wheel (31) is rotatably matched with the transmission belt (4); and the output end of the tensioning control unit (33) is transmission-connected to the middle part of the tensioning member (32).

2. A cutting platform that is easy to maintain according to claim 1, characterized in that: The tensioning member (32) comprises a mounting cross frame (321) and a mounting vertical frame (322); one end of the mounting cross frame (321) is hingedly arranged on the outer side wall of the shredding mechanism (1); the other end of the mounting cross frame (321) is rotatably matched with the tensioning wheel (31); the mounting vertical frame (322) is arranged in the middle of the mounting cross frame (321); the mounting cross frame (321) and the mounting vertical frame (322) are arranged in a T-shape; and the tensioning control unit (33) is transmission-connected to a side of the mounting vertical frame (322) away from the mounting cross frame (321).

3. A cutting platform that is easy to maintain according to claim 2, characterized in that: The tensioning control unit (33) comprises a driving mechanism (331) and a driving rod (332), wherein the driving rod (332) is mounted at the output end of the driving mechanism (331), and a driving member (333) is provided on the driving rod (332), wherein the driving member (333) is hinged to the mounting vertical frame (322).

4. A cutting platform that is easy to maintain according to claim 3, characterized in that: The driving rod (332) is provided with two limiting members, the driving member (333) is slidably arranged on the driving rod (332) and is located between the two limiting members, the driving rod (332) is sleeved with a limiting spring (334), one end of the limiting spring (334) is abutted against the limiting member away from the driving mechanism (331), and the other end is abutted against the driving member (333).

5. The cutting platform for easy maintenance according to claim 3, characterized in that: The driving mechanism (331) is a hydraulic cylinder.

6. A cutting platform that is easy to maintain according to claim 1, characterized in that: The first transmission wheel (11) and the second transmission wheel (21) are in contact with the inner side surface of the transmission belt (4).

7. The cutting platform for easy maintenance according to claim 1, characterized in that: The tensioning wheel (31) contacts the outer side surface of the transmission belt (4).

8. The cutting platform for easy maintenance according to claim 3, characterized in that: One to four transmission belts (4) are provided, the lengths of the plurality of transmission belts (4) are the same, and the plurality of transmission belts (4) are sleeved in parallel on the first transmission wheel (11) and the second transmission wheel (21).

9. The cutting platform for easy maintenance according to claim 1, characterized in that: The tensioning member (32) comprises an L-arm (335) and a connecting arm (336); the short side of the L-arm (335) is hinged to the outer side wall of the shredding mechanism (1); the long side of the L-arm (335) is hinged to the output end of the tensioning control unit (33); the connecting arm (336) is fixedly mounted on the short side of the L-arm (335); and the tensioning wheel (31) is rotatably arranged on the connecting arm (336).

10. The cutting platform for easy maintenance according to claim 1, characterized in that: It also comprises an outer cover shell (5), wherein the outer cover shell (5) is arranged on the outer side of the transmission belt (4).

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