Folding corn harvesting header

Abstract

The utility model provides a foldable corn harvesting header, which belongs to the technical field of agricultural machinery and comprises a first device frame, second device frames respectively hinged to two side surfaces of the first device frame and seedling pulling fingers respectively fixedly arranged on the outer surfaces of the first device frame and the second device frames. The folding mechanism comprises a protection frame fixedly installed on the top of the first device frame, a motor frame fixedly connected to the outer surface of the protection frame and a driving assembly arranged on the inner surface of the motor frame. Through the self-locking characteristic and the high reduction ratio of the worm and the worm gear, the load and the instantaneous stress of the output end of the motor and the steel wire rope are obviously reduced, so that the second device frame is effectively prevented from falling off under the overload condition, the concentrated load on the steel wire rope is dispersed to a plurality of points through the pulley, and the service life of the second device frame is prolonged. The risk that the steel wire rope is broken due to overlarge single-point stress is further reduced, the service life of the steel wire rope is prolonged, and the effect of prolonging the service life of equipment is achieved while the safety of the folding operation process is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, specifically relating to a folding corn harvesting header. Background Technology

[0002] Folding corn harvesting headers play an important role in the field of agricultural machinery technology. Many countries and regions have strict restrictions on the width of transport vehicles. The width of the folded header is significantly reduced, thereby ensuring that the harvester complies with traffic regulations during transportation. In situations where farmland or field roads are narrow, the folding header can easily pass through, reducing transfer time and costs.

[0003] In some existing folding corn harvesting headers, the folding process typically involves a winch pulling a steel cable to fold and unfold the frame on both sides. If the tension on the winch exceeds its maximum design load, the motor may overheat due to excessive load, eventually causing the motor to burn out and preventing the winch from working properly. If the steel cable operates under overload for a long time, the risk of breakage may increase. A broken steel cable can cause the frame to suddenly fall off, which may result in serious property damage or personal injury. Utility Model Content

[0004] The purpose of this invention is to provide a foldable corn harvesting header, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A folding corn harvesting header includes a harvesting mechanism, comprising a first frame, a second frame respectively hinged to the two sides of the first frame, and pulling fingers respectively fixedly disposed on the outer surfaces of the first frame and the second frame.

[0007] The folding mechanism includes a protective frame fixedly installed on the top of the first device frame, a motor frame fixedly connected to the outer surface of the protective frame, and a drive assembly disposed on the inner surface of the motor frame.

[0008] As a preferred embodiment of this utility model, the drive assembly includes a motor adapted to be installed on the inner surface of the motor frame, and a connecting rod fixedly connected to the output end of the motor.

[0009] As a preferred embodiment of the present invention, the drive assembly further includes a worm gear fixedly installed at the through end of the connecting rod, and worm wheels respectively meshing with the two side surfaces of the worm gear.

[0010] As a preferred embodiment of the present invention, the drive assembly further includes a connecting shaft fixedly connected to the inner surface of the worm gear, a take-up roller fixedly sleeved on the outer surface of the connecting shaft, and a wire rope fixedly disposed on the outer surface of the take-up roller.

[0011] As a preferred embodiment of this utility model, the drive assembly further includes fixing blocks that are fixedly installed on both sides of the inner wall of the protective frame and used in conjunction with the connecting shaft, support frames that are fixedly connected to both sides of the top of the protective frame, and pulleys that are fixedly installed on the inner wall of the support frame via bearings and used in conjunction with the wire rope.

[0012] In a preferred embodiment of this utility model, the outer surface of the connecting shaft is in rotatable contact with the inner surface of the fixing block, and the outer surface of the wire rope is in sliding contact with the outer surface of the pulley.

[0013] In a preferred embodiment of this utility model, the other end of the worm gear is fixedly installed on the inner wall of the protective frame via a bearing, and the other end of the wire rope is fixedly connected to the top of the second frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are: through the self-locking characteristics and high reduction ratio of the worm and worm wheel, the load and instantaneous stress on the motor output end and the wire rope are significantly reduced, thereby effectively preventing the second frame from falling off under overload conditions. Furthermore, the concentrated load on the wire rope is distributed to multiple points through the pulley, further reducing the risk of the wire rope breaking due to excessive stress at a single point, and extending its service life. This achieves the effect of ensuring the safety of the folding operation process while extending the service life of the equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0018] Figure 3 This utility model Figure 1 Enlarged schematic diagram of the local structure at point A;

[0019] Figure 4 This is a schematic diagram of the internal structure of the protective frame in this utility model.

[0020] In the diagram: 100, harvesting mechanism; 101, first frame; 102, second frame; 103, reeling finger; 200, folding mechanism; 201, protective frame; 202, motor frame; 203, drive assembly; 203a, motor; 203b, connecting rod; 203c, worm gear; 203d, worm wheel; 203e, connecting shaft; 203f, take-up roller; 203g, wire rope; 203h, fixing block; 203i, support frame; 203j, pulley. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Example

[0025] Reference Figures 1-4 This is an embodiment of the present invention, which provides a folding corn harvesting header that can reduce the load and instantaneous stress on the output end of the motor 203a and the wire rope 203g by means of the self-locking characteristics and high reduction ratio of the worm gear 203c and the worm wheel 203d.

[0026] The harvesting mechanism 100 includes a first frame 101, a second frame 102 respectively hinged to the two sides of the first frame 101, and pulling fingers 103 respectively fixedly disposed on the outer surfaces of the first frame 101 and the second frame 102.

[0027] It should be noted that the pulling finger 103 can guide the cut corn plants from the ground to the conveyor chain or conveyor belt through its finger-like structure, ensuring that the plants enter the harvester smoothly and arranging the corn plants neatly, reducing the confusion and blockage of the plants during the conveying process. The pulling finger 103 is existing technology, and this technical solution will not be described in detail. Moreover, those skilled in the art can clearly understand the working principle.

[0028] The folding mechanism 200 includes a protective frame 201 fixedly installed on the top of the first frame 101, a motor frame 202 fixedly connected to the outer surface of the protective frame 201, and a drive assembly 203 disposed on the inner surface of the motor frame 202.

[0029] It should be noted that the protective frame 201 is not only used to support the drive assembly 203, but also can effectively prevent the debris generated during corn harvesting from causing adverse effects on the various components in the drive assembly 203.

[0030] Specifically, the drive assembly 203 includes a motor 203a adapted to be installed on the inner surface of the motor frame 202, and a connecting rod 203b fixedly connected to the output end of the motor 203a.

[0031] Furthermore, the drive assembly 203 also includes a worm 203c fixedly installed at the through end of the connecting rod 203b, and worm wheels 203d respectively meshing with the two sides of the worm 203c.

[0032] It should also be noted that the worm gear 203d and worm 203c mechanism has a self-locking characteristic. That is, when the worm gear 203d is the driven component, the worm 203c is difficult to be reversed. Even under overload conditions, the worm gear 203d will not easily drive the worm 203c to reverse with the output end of the motor 203a, thereby preventing the second frame 102 from falling off.

[0033] Preferably, the drive assembly 203 further includes a connecting shaft 203e fixedly connected to the inner surface of the worm gear 203d, a take-up roller 203f fixedly sleeved on the outer surface of the connecting shaft 203e, and a wire rope 203g fixedly disposed on the outer surface of the take-up roller 203f.

[0034] It should be explained that the 203g wire rope is made of chromium-molybdenum alloy steel with high strength, toughness and corrosion resistance, in order to adapt to long-term heavy load applications.

[0035] It should be noted that the drive assembly 203 also includes a fixing block 203h that is fixedly installed on both sides of the inner wall of the protective frame 201 and used in conjunction with the connecting shaft 203e, a support frame 203i that is fixedly connected to both sides of the top of the protective frame 201, and a pulley 203j that is fixedly installed on the inner wall of the support frame 203i by bearings and used in conjunction with the wire rope 203g.

[0036] Among them, the surface of the pulley 203j is provided with a groove, which can effectively prevent the position of the wire rope 203g from shifting during the movement, so as to ensure the safe operation of the folding work of the second frame 102. The pulley 203j can also distribute the concentrated load on the wire rope 203g to multiple points, reducing the risk of the wire rope 203g breaking due to excessive force at a single point.

[0037] Furthermore, the outer surface of the connecting shaft 203e makes rotational contact with the inner surface of the fixing block 203h, and the outer surface of the wire rope 203g makes sliding contact with the outer surface of the pulley 203j.

[0038] Preferably, the other end of the worm gear 203c is fixedly installed on the inner wall of the protective frame 201 by a bearing, and the other end of the wire rope 203g is fixedly connected to the top of the second frame 102.

[0039] In use, the motor 203a is turned on to drive the connecting rod 203b to rotate, which in turn drives the worm gear 203c to rotate synchronously. Through the cooperation of the worm gear 203c and the worm wheel 203d, the connecting shaft 203e is driven to rotate, which in turn drives the take-up roller 203f to rotate synchronously. The take-up roller 203f takes up the wire rope 203g. The pulley 203j prevents the wire rope 203g from shifting position during the movement, while distributing the concentrated load on the wire rope 203g to multiple points, reducing the risk of the wire rope 203g breaking due to excessive force at a single point. The wire rope 203g then pulls up the second frame 102 to complete the folding operation. Due to the self-locking characteristics of the worm wheel 203d and the worm gear 203c, even under overload conditions, the worm wheel 203d will not easily drive the worm gear 203c and the output end of the motor 203a to reverse, thus preventing the second frame 102 from falling off.

[0040] In summary, the self-locking characteristics and high reduction ratio of the worm gear 203c and worm wheel 203d significantly reduce the load and instantaneous stress on the output end of the motor 203a and the wire rope 203g, thereby effectively preventing the second frame 102 from falling off under overload conditions. Furthermore, the concentrated load on the wire rope 203g is distributed to multiple points through the pulley 203j, further reducing the risk of the wire rope 203g breaking due to excessive stress at a single point and extending its service life. This achieves the effect of ensuring the safety of the folding operation process while extending the service life of the equipment.

[0041] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0042] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0043] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A folding corn harvesting header, characterized in that: include, The harvesting mechanism (100) includes a first frame (101), a second frame (102) respectively hinged to the two sides of the first frame (101), and a pulling finger (103) respectively fixedly disposed on the outer surfaces of the first frame (101) and the second frame (102); The folding mechanism (200) includes a protective frame (201) fixedly installed on the top of the first device frame (101), a motor frame (202) fixedly connected to the outer surface of the protective frame (201), and a drive assembly (203) disposed on the inner surface of the motor frame (202).

2. The folding corn harvesting header according to claim 1, characterized in that: The drive assembly (203) includes a motor (203a) adapted to be installed on the inner surface of the motor frame (202), and a connecting rod (203b) fixedly connected to the output end of the motor (203a).

3. A folding corn harvesting header according to claim 2, characterized in that: The drive assembly (203) further includes a worm (203c) fixedly installed at the through end of the connecting rod (203b), and worm wheels (203d) respectively meshing with the two sides of the worm (203c).

4. A folding corn harvesting header according to claim 3, characterized in that: The drive assembly (203) further includes a connecting shaft (203e) fixedly connected to the inner surface of the worm gear (203d), a take-up roller (203f) fixedly sleeved on the outer surface of the connecting shaft (203e), and a wire rope (203g) fixedly disposed on the outer surface of the take-up roller (203f).

5. A folding corn harvesting header according to claim 4, characterized in that: The drive assembly (203) further includes a fixing block (203h) fixedly installed on both sides of the inner wall of the protective frame (201) and used in conjunction with the connecting shaft (203e), a support frame (203i) fixedly connected to both sides of the top of the protective frame (201), and a pulley (203j) fixedly installed on the inner wall of the support frame (203i) by bearings and used in conjunction with the wire rope (203g).

6. A folding corn harvesting header according to claim 5, characterized in that: The outer surface of the connecting shaft (203e) is in rotational contact with the inner surface of the fixing block (203h), and the outer surface of the wire rope (203g) is in sliding contact with the outer surface of the pulley (203j).

7. A folding corn harvesting header according to claim 6, characterized in that: The other end of the worm gear (203c) is fixedly installed on the inner wall of the protective frame (201) by a bearing, and the other end of the wire rope (203g) is fixedly connected to the top of the second device frame (102).

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