An adjustable angle reaping knife device for a corn harvester

Abstract

The application relates to the technical field of corn harvesters, and discloses an adjustable-angle harvesting blade device of a corn harvester, which comprises a rotating sleeve, a rotating shaft, a knife holder and a lifting sleeve. The rotating sleeve is a circular tubular structure, and a mounting frame is arranged on the upper side of the rotating sleeve; the rotating shaft is rotatably arranged in the rotating sleeve, and a rotating plate is arranged on the lower side of the rotating shaft; the knife holder is hingedly arranged on the rotating plate, and a harvesting blade is hingedly arranged on the knife holder; the lifting sleeve is slidably arranged on the rotating sleeve; and a lifting disc is rotatably connected with the lifting sleeve, and the lifting disc is slidably arranged on the rotating sleeve. The following technical effects can be achieved: the hinged arrangement of the knife holder on the rotating plate can realize the inclination angle adjustment of the knife holder, so that different field ridge heights and crop densities can be adapted; the lifting of the lifting sleeve can drive the lifting of the hinged plate; the hinged plate can push the knife holder to swing, and the flexible adjustment of the harvesting blade angle can be realized.

Description

Technical Field

[0001] This application relates to the field of corn harvester technology, for example to an adjustable angle harvesting blade device for a corn harvester. Background Technology

[0002] Currently, during the operation of corn harvesters, the harvester needs to cut the corn stalks near the root using cutting blades, and also needs to cut the stalks into small pieces to facilitate subsequent cultivation. In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art: Traditional corn harvesters have fixed blade angles, making it difficult to adapt to different terrains and crop conditions. They cannot be flexibly adjusted according to different ridge heights and crop densities, resulting in low straw cutting efficiency. Utility Model Content

[0003] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0004] This disclosure provides an adjustable-angle harvesting blade device for a corn harvester to solve the problem of incomplete straw cutting caused by different ridge heights in different terrains.

[0005] In some embodiments, the adjustable angle harvesting blade device for a corn harvester includes: a rotating sleeve, which is a circular tubular structure, and a mounting bracket is provided on the upper side of the rotating sleeve; a rotating shaft, which is rotatably disposed inside the rotating sleeve, and a rotating plate is provided on the lower side of the rotating shaft; a blade holder, which is hinged to the rotating plate, and a harvesting blade is hinged to the blade holder; a lifting sleeve, which is slidably sleeved on the rotating sleeve, and a hinge plate is hinged to the side wall of the lifting sleeve, and the hinge plate is hinged to the upper part of the blade holder, with the lower bottom surface of the lifting sleeve higher than the upper surface of the blade holder; and a lifting plate, which is rotatably connected to the lifting sleeve, and the lifting plate is slidably disposed on the rotating sleeve, with a hydraulic rod provided on the upper part of the lifting plate, and the other end of the hydraulic rod being connected to the mounting bracket.

[0006] In some embodiments, a retaining ring is provided on the outer periphery of the bottom of the rotating sleeve, and a spring is provided on the rotating sleeve above the retaining ring, with the upper part of the spring fixedly located at the bottom of the lifting sleeve.

[0007] In some embodiments, a rotating washer is provided between the spring and the rotating sleeve.

[0008] In some embodiments, a first ball groove is provided on the upper part of the lifting sleeve, a second ball groove is provided on the lower part of the lifting plate, and an axial ball is provided between the lifting sleeve and the lifting plate, the axial ball being disposed between the first ball groove and the second ball groove.

[0009] In some embodiments, a connecting sleeve is provided on the inner side of the upper part of the lifting sleeve, and the lifting plate is rotatably sleeved on the outside of the connecting sleeve.

[0010] In some embodiments, a lifting slide bar is provided on the upper part of the lifting plate, and the lifting slide bar is slidably mounted on the mounting frame.

[0011] In some embodiments, a third sliding groove is provided on the inner side of the lifting sleeve, and a fourth sliding groove is provided on the upper part of the third sliding groove. Radial balls are slidably disposed in both the third and fourth sliding grooves, and the radial balls are slidably disposed on the outer wall of the rotating sleeve.

[0012] In some embodiments, a connecting bolt is inserted into the blade holder, a hinged sleeve is fitted onto the connecting bolt, and a harvesting blade is hingedly fitted onto the hinged sleeve.

[0013] In some embodiments, the harvesting blade has cutting teeth on its side.

[0014] In some embodiments, the mounting bracket has mounting holes on its sidewalls, and the rotating shaft has a chain toothed disc at its end near the mounting bracket.

[0015] The adjustable angle harvesting blade device for corn harvesters provided in this embodiment can achieve the following technical effects: By hinged to the rotating plate, the tilt angle of the blade holder can be adjusted to adapt to different field ridge heights and crop densities. The lifting and lowering of the lifting sleeve can drive the lifting and lowering of the hinge plate, which in turn can push the blade holder to swing, thereby achieving flexible adjustment of the harvesting blade angle. The harvesting blade is hinged and fitted onto the blade holder to form a floating connection. When encountering hard objects, it can be flipped upwards to release force and reduce the risk of blade breakage.

[0016] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein: Figure 1This is a schematic diagram of the adjustable angle harvesting blade device for a corn harvester provided in an embodiment of this disclosure; Figure 2 This is a cross-sectional structural diagram of the adjustable angle harvesting blade device for a corn harvester provided in an embodiment of this disclosure; Figure 3 This is provided by the embodiments of this disclosure. Figure 2 Schematic diagram of part A in the middle.

[0018] Figure label: 100. Rotating sleeve; 101. Mounting bracket; 102. Retaining ring; 103. Spring; 104. Rotating washer; 105. Mounting hole; 200. Rotating shaft; 201. Rotating plate; 202. Chain toothed disc; 300. Blade holder; 301. Harvesting blade; 302. Connecting bolt; 303. Hinge sleeve; 304. Cutting tooth; 400. Lifting sleeve; 401. Hinge plate; 402. First ball groove; 403. Second ball groove; 404. Axial ball; 405. Connecting sleeve; 406. Third sliding groove; 407. Fourth sliding groove; 408. Radial ball; 500. Lifting plate; 501. Hydraulic rod; 502. Lifting slide bar Detailed Implementation

[0019] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0020] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0021] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0022] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0023] Unless otherwise stated, the term "multiple" means two or more.

[0024] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0025] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0027] Combination Figure 1-3As shown in the figure, this embodiment of the present disclosure provides an adjustable angle harvesting blade device for a corn harvester, comprising a rotating sleeve 100, which is a circular tubular structure, and a mounting bracket 101 is provided on the upper side of the rotating sleeve 100; a rotating shaft 200, which is rotatably disposed inside the rotating sleeve 100, and a rotating plate 201 is provided on the lower side of the rotating shaft 200; a blade holder 300, which is hinged to the rotating plate 201, and a harvesting blade 301 is hinged to the blade holder 300; and a lifting sleeve 400, which is slidably sleeved on the rotating sleeve 100. A hinge plate 401 is hinged to the side wall of the rotating sleeve 100 and the lifting sleeve 400, and the hinge plate 401 is hinged to the upper part of the tool holder 300. The lower bottom surface of the lifting sleeve 400 is higher than the upper surface of the tool holder 300. A lifting plate 500 is rotatably connected to the lifting sleeve 400 and is slidably disposed on the rotating sleeve 100. A hydraulic rod 501 is disposed on the upper part of the lifting plate 500, and the other end of the hydraulic rod 501 is connected to the mounting bracket 101.

[0028] The adjustable angle harvesting blade 301 device for a corn harvester provided in this embodiment uses a rotating sleeve 100, which is a tubular structure open at both ends. The upper part of the rotating sleeve 100 is fixed to a mounting bracket 101. A rotating shaft 200 is rotatably mounted inside the rotating sleeve 100. A rotating plate 201 is mounted at the bottom of the rotating shaft 200, perpendicular to the rotating shaft 200. The rotating plate 201 is located at the bottom of the rotating sleeve 100, and a blade holder 300 is hinged to the end of the rotating plate 201. The blade holder 300 can swing up and down on the rotating plate 201, thus allowing the harvesting blade 301 on the blade holder 300 to move up and down. The oscillation allows for angle adjustment of the harvesting blade 301. The harvesting blade 301 is laterally hinged to the blade holder 300, enabling a rotatable connection between the blade 301 and the blade holder 300. This prevents a rigid connection between the blade and the blade holder 300 and protects the blade from damage when cutting hard objects. The lifting sleeve 400 is rotatably mounted outside the rotating sleeve 100 and can slide up and down on the rotating sleeve 100. The lifting sleeve 400 is positioned above the blade holder 300 and at a certain distance. A hinge plate 401 is hinged to the side wall of the lifting sleeve 400. 1. Hinged to the upper part of the blade holder 300, the lifting sleeve 400 moves up and down, driving the hinge rod to push the blade holder 300 to swing, thereby controlling the angle of the blade and achieving precise harvesting. A lifting plate 500 is installed on the upper part of the lifting sleeve 400, which can press against the lifting sleeve 400. The lifting plate 500 is connected to the mounting bracket 101 via a hydraulic rod 501. The extension and retraction of the hydraulic rod 501 controls the up and down movement of the lifting plate 500, thereby adjusting the position of the lifting sleeve 400. When the rotating shaft 200 rotates, it drives the cutting blade to rotate. During rotation, the centrifugal force causes the blade to unfold outwards, making... The blade is perpendicular to the rotating shaft 200. The lifting plate 500 can push the lifting sleeve 400 up and down, so that the blade holder 300 can be pressed down by the hinge plate 401, thereby tilting the cutting blade downward. This allows for the adjustment of the cutting blade angle, enabling the blade to harvest at different heights and angles, which can meet the corn harvesting needs of different ground heights. Furthermore, the lifting plate 500 and the lifting sleeve 400 are rotatably connected. The lifting plate 500 can prevent the lifting sleeve 400 from rubbing against the hydraulic rod 501, and the rotatable connection between the lifting plate 500 and the lifting sleeve 400 can reduce the friction generated by rotation.

[0029] Optionally, a retaining ring 102 is provided on the outer periphery of the bottom of the rotating sleeve 100, and a spring 103 is provided on the rotating sleeve 100 above the retaining ring 102, with the upper part of the spring 103 fixedly located at the bottom of the lifting sleeve 400.

[0030] In this way, a spring 103 is provided between the retaining ring 102 at the bottom of the rotating sleeve 100 and the rotating sleeve 100. The spring 103 can press the rotating sleeve 100 onto the lifting plate 500. This allows the rotating sleeve 100 to be in stable contact with the lifting plate 500 even when it is not rotating, ensuring the stability of the rotating sleeve 100 in a static state. It can also stabilize the angle of the cutting blade, making it easier to observe the tilt angle of the cutting blade.

[0031] Optionally, a rotating washer 104 is provided between the spring 103 and the rotating sleeve 100.

[0032] In this way, the rotating washer 104 between the spring 103 and the rotating sleeve 100 can reduce the friction between the spring 103 and the rotating sleeve 100, extend the service life of the spring 103, and at the same time maintain the flexibility and stability of the rotating sleeve 100.

[0033] Optionally, the upper part of the lifting sleeve 400 is provided with a first ball groove 402, the lower part of the lifting plate 500 is provided with a second ball groove 403, and an axial ball 404 is provided between the lifting sleeve 400 and the lifting plate 500, the axial ball 404 being disposed between the first ball groove 402 and the second ball groove 403.

[0034] In this way, the first ball groove 402 on the upper part of the lifting sleeve 400 and the second ball groove 403 on the bottom of the lifting plate 500 are connected by axial balls 404, which reduces the friction between the lifting sleeve 400 and the lifting plate 500 when the lifting sleeve 400 rotates and improves the smoothness of the rotation of the lifting sleeve 400.

[0035] Optionally, a connecting sleeve 405 is provided on the inner side of the upper part of the lifting sleeve 400, and the lifting plate 500 is rotatably sleeved on the outside of the connecting sleeve 405.

[0036] In this way, the outer diameter of the connecting sleeve 405 on the rotating sleeve 100 is smaller than the outer diameter of the lifting sleeve 400, and the inner diameter of the lifting plate 500 matches the outer diameter of the connecting sleeve 405, ensuring that the lifting plate 500 is stably fitted on the connecting sleeve 405, avoiding the shaking of the rotating sleeve 100 during rotation, and increasing the stability between the lifting plate 500 and the rotating sleeve 100.

[0037] Optionally, a lifting slide bar 502 is provided on the upper part of the lifting plate 500, and the lifting slide bar 502 is slidably mounted on the mounting frame 101.

[0038] In this way, the lifting slide bar 502 on the upper part of the lifting plate 500 is slidably mounted on the mounting frame 101, and the lifting slide bar 502 can increase the stability of the lifting plate 500 when it slides on the mounting frame 101.

[0039] Optionally, a third sliding groove 406 is provided on the inner side of the lifting sleeve 400, and a fourth sliding groove 407 is provided on the upper part of the third sliding groove 406. Radial balls 408 are slidably disposed in both the third sliding groove 406 and the fourth sliding groove 407, and the radial balls 408 are slidably disposed on the outer wall of the rotating sleeve 100.

[0040] Thus, the inner wall of the lifting sleeve 400 is provided with annular third sliding groove 406 and fourth sliding groove 407. The radial balls 408 in the third sliding groove 406 and fourth sliding groove 407 can reduce the friction of the lifting sleeve 400 when it moves radially, improve its radial movement stability, and the double-layer design of the third sliding groove 406 and fourth sliding groove 407 can increase the radial load-bearing capacity and stability of the lifting sleeve 400.

[0041] Optionally, a connecting bolt 302 is inserted into the blade holder 300, a hinged sleeve 303 is fitted on the connecting bolt 302, and a harvesting blade 301 is hingedly fitted on the hinged sleeve 303.

[0042] In this way, the blade holder 300 has a horizontally arranged U-shaped structure. The connecting bolts 302 pass through both sides of the blade holder 300, and the hinge sleeve 303 is fitted onto the connecting bolts 302. The harvesting blade 301 is hingedly fitted onto the hinge sleeve 303. The harvesting blade 301 can be easily fixed and replaced through the connecting bolts 302. The hinge sleeve 303 can increase the wear resistance of the connection between the cutting blade and the connecting bolts 302, prevent the harvesting blade 301 from directly contacting the connecting bolts 302, and extend the service life.

[0043] Optionally, the harvesting blade 301 is provided with cutting teeth 304 on its side.

[0044] In this way, the cutting teeth 304 of the harvesting blade 301 can cut the crop better and improve harvesting efficiency.

[0045] Optionally, the mounting bracket 101 has mounting holes 105 on its side wall, and the rotating shaft 200 has a chain toothed disc 202 at its end near the mounting bracket 101.

[0046] In this way, the mounting holes 105 on the mounting bracket 101 can facilitate the installation and replacement of the mounting bracket 101, and the chain toothed disc 202 on the rotating shaft 200 can transmit power to the harvester, thereby driving the rotating shaft 200.

[0047] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A corn harvester adjustable angle sickle device, characterized by, include: The rotating sleeve (100) is a circular tubular structure, and a mounting bracket (101) is provided on the upper side of the rotating sleeve (100). A rotating shaft (200) is rotatably disposed inside the rotating sleeve (100), and a rotating plate (201) is provided on the lower side of the rotating shaft (200). A blade holder (300) is hinged to the rotating plate (201), and a harvesting blade (301) is hinged to the blade holder (300). A lifting sleeve (400) is slidably sleeved on the rotating sleeve (100), and a hinge plate (401) is hinged to the side wall of the lifting sleeve (400), and the hinge plate (401) is hinged to the upper part of the tool holder (300). The lower bottom surface of the lifting sleeve (400) is higher than the upper surface of the tool holder (300). The lifting plate (500) is rotatably connected to the lifting sleeve (400), and the lifting plate (500) is slidably disposed on the rotating sleeve (100). A hydraulic rod (501) is provided on the upper part of the lifting plate (500), and the other end of the hydraulic rod (501) is connected to the mounting bracket (101).

2. The adjustable angle reaper blade apparatus of claim 1, wherein, A retaining ring (102) is provided on the outer periphery of the bottom of the rotating sleeve (100), and a spring (103) is provided on the rotating sleeve (100) above the retaining ring (102). The upper part of the spring (103) is fixed at the bottom of the lifting sleeve (400).

3. The adjustable angle reaper blade assembly of claim 2, wherein, A rotating washer (104) is provided between the spring (103) and the rotating sleeve (100).

4. The adjustable angle reaper blade apparatus of claim 1, wherein, The upper part of the lifting sleeve (400) is provided with a first ball groove (402), the lower part of the lifting plate (500) is provided with a second ball groove (403), and an axial ball (404) is provided between the lifting sleeve (400) and the lifting plate (500). The axial ball (404) is located between the first ball groove (402) and the second ball groove (403).

5. The adjustable angle harvesting blade device for a corn harvester according to claim 1, characterized in that, A connecting sleeve (405) is provided on the upper inner side of the lifting sleeve (400), and the lifting plate (500) is rotatably sleeved on the outside of the connecting sleeve (405).

6. The adjustable angle harvesting blade device for a corn harvester according to claim 4, characterized in that, The upper part of the lifting plate (500) is provided with a lifting slide rod (502), which is slidably mounted on the mounting frame (101).

7. The adjustable angle harvesting blade device for a corn harvester according to claim 1, characterized in that, The inner side of the lifting sleeve (400) is provided with a third sliding groove (406), and the upper part of the third sliding groove (406) is provided with a fourth sliding groove (407). Radial balls (408) are slidably arranged in both the third sliding groove (406) and the fourth sliding groove (407), and the radial balls (408) are slidably arranged on the outer wall of the rotating sleeve (100).

8. The adjustable angle harvesting blade device for a corn harvester according to claim 1, characterized in that, A connecting bolt (302) is inserted into the blade holder (300), and a hinged sleeve (303) is fitted on the connecting bolt (302). A harvesting blade (301) is hingedly fitted on the hinged sleeve (303).

9. The adjustable angle harvesting blade device for a corn harvester according to claim 8, characterized in that, The harvesting blade (301) has cutting teeth (304) on its side.

10. The adjustable angle harvesting blade device for a corn harvester according to claim 1, characterized in that, The mounting bracket (101) has mounting holes (105) on its side wall, and the rotating shaft (200) has a chain toothed disc (202) at its end near the mounting bracket (101).

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