Picking plate gap adjusting mechanism

Abstract

The utility model discloses an ear picking plate gap adjusting mechanism which comprises an adjusting assembly which is arranged between adjacent ear picking plate sets and comprises an adjusting rod arranged in the first direction and at least one set of push rods arranged in the axial direction of the adjusting rod at intervals, and each set of push rods comprises two push rods symmetrically arranged on the two sides of the adjusting rod. The axes of the push rods and the axes of the adjusting rods intersect with each other on the push rods, and the efficiency of adjusting the gaps of the ear picking plate sets can be improved through the adjusting assemblies.

Description

Technical Field

[0001] This utility model relates to the field of corn harvester technology, and in particular to a mechanism for adjusting the gap between the ear-picking plates. Background Technology

[0002] The corn ear picker is an important component of corn harvesting equipment. Currently, most corn ear pickers adopt the pull-diameter ear picking plate type. The ear picking plates are set in pairs. During operation, the pull-diameter roller provides downward pulling force to the corn stalk, allowing the corn stalk to pass through the gap between the ear picking plates. Meanwhile, the large-diameter corn ears are blocked by the ear picking plates and separated from the corn stalk, thus achieving the ear picking effect.

[0003] To accommodate corn stalks of different diameters, the gap between each pair of ear-picking plates is adjustable. Currently, there are two main ways to adjust the ear-picking plates. One method is to use an elastic ear-picking plate, where the ear-picking end can swing up and down to automatically adjust the gap between the ear-picking plates. However, this method has a complex structure, the elastic components need to be inspected and replaced regularly, and the failure rate is high. It is mainly used for harvesting fresh corn.

[0004] Another method involves setting strip holes in the ear-picking plate and fixing it to the frame with fastening bolts passing through the strip holes. This method is simple and reliable, so it is still the main application method for ear-picking plates in corn harvesters. However, the gap needs to be adjusted through the strip holes. This method requires manual adjustment of the gap, and to ensure that the gaps at both ends are consistent, repeated adjustments are required, resulting in low adjustment efficiency. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned problems by providing a mechanism for adjusting the gap of the ear-picking plate, thereby improving the adjustment efficiency of the ear-picking plate.

[0006] To achieve the above objectives, the technical solution of the ear-picking plate gap adjustment mechanism of this utility model is as follows: the ear-picking plate gap adjustment mechanism includes:

[0007] An adjustment assembly, disposed between adjacent ear-picking plate groups, includes an adjustment rod disposed along a first direction and at least one set of push rods disposed at intervals along the axial direction of the adjustment rod. Each set of push rods includes two push rods symmetrically disposed on both sides of the adjustment rod. Each push rod has two inclined surfaces corresponding to each set of push rods, and the axis of the push rod intersects the axis of the adjustment rod.

[0008] Furthermore, it also includes a housing, wherein the push rod insertion guide is disposed on the side wall of the housing and the push rod insertion guide is disposed at the end of the housing.

[0009] Furthermore, the end of the housing away from the adjusting rod is also threaded with a stroke adjusting bolt, the axis of which is parallel to the adjusting rod.

[0010] Furthermore, the adjusting rod is provided with an adjusting element, and the inclined surface is located between the end face and the side face of the adjusting element that are away from the stroke adjusting bolt.

[0011] Furthermore, an elastic element is provided between the adjusting rod and the housing, the elastic element being able to provide elastic force to the adjusting rod in the direction of approaching the stroke adjusting bolt, the stroke adjusting bolt being in abutting engagement with the adjusting element.

[0012] Furthermore, the elastic element is a compression spring sleeved on the end of the adjusting rod away from the stroke adjusting bolt, with one end of the compression spring abutting against the housing and the other end abutting against the adjusting element.

[0013] Furthermore, the push rod is perpendicular to the adjusting rod, and its end is provided with a threaded end.

[0014] The present invention discloses a gap adjustment mechanism for the ear-picking plates, including an adjustment assembly disposed between adjacent ear-picking plate groups. The assembly includes an adjustment rod disposed along a first direction and at least one set of push rods disposed at intervals along the axial direction of the adjustment rod. Each set of push rods includes two push rods symmetrically disposed on both sides of the adjustment rod. Each push rod has two inclined surfaces corresponding to each set of push rods. The axis of the push rod intersects with the axis of the adjustment rod. The adjustment assembly can improve the efficiency of the gap adjustment of the ear-picking plate groups. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the ear-picking plate gap adjustment mechanism of this utility model in use.

[0016] Figure 2 This is a bottom view of the structure of the ear-picking plate gap adjustment mechanism of this utility model in use.

[0017] Figure 3 This is a schematic diagram of the axial structure of the ear-picking plate gap adjustment mechanism of this utility model in use.

[0018] Figure 4 This is a schematic diagram of the internal structure of the ear-picking plate gap adjustment mechanism of this utility model.

[0019] Figure 5 for Figure 4 The diagram shown is a partially enlarged structural schematic of the ear-picking plate gap adjustment mechanism of this utility model.

[0020] In the diagram: 1. Picking plate assembly; 10. Picking sub-plate; 11. Strip hole; 12. Hanging piece; 13. Bending part; 2. Adjustment component; 20. Tension spring; 21. Box body; 22. Adjusting rod; 23. Stroke adjustment bolt; 24. Push rod; 240. Threaded end; 25. Adjusting component; 251. Inclined surface; 26. Compression spring. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] Please refer to Figure 1-5 This utility model provides a mechanism for adjusting the gap between the ear-picking plates. As a specific embodiment, the technical solution is as follows: The mechanism for adjusting the gap between the ear-picking plates includes:

[0023] Adjustment component 2, disposed between adjacent ear-picking plate groups 1, includes an adjustment rod 22 disposed along a first direction and at least one set of push rods 24 spaced apart along the axial direction of the adjustment rod 22. Each set of push rods 24 includes two symmetrically disposed on both sides of the adjustment rod 22. Each push rod 24 has two inclined surfaces 251 corresponding to each set of push rods 24. The axis of the push rod 24 intersects the axis of the adjustment rod 22.

[0024] For details, please refer to Figures 1-3 This is a structural diagram of the ear-picking plate gap adjustment mechanism provided in this application in its use state. It can be understood that the corn ear-picking machine includes multiple ear-picking groups, each group equipped with a pair of ear-picking plates. Each pair of ear-picking plates includes two ear-picking sub-plates 10 spaced apart. Since there is installation space on the frame between adjacent ear-picking plate groups 1, this application uses an adjustment component 2 between the two groups of ear-picking plates. By adjusting the position of the two ear-picking sub-plates 10 that are close to each other in adjacent ear-picking plate groups 1, multiple adjustment components 2 can be adjusted in actual application, thereby achieving the effect of adjusting the ear-picking plate group 1. The specific structure of the adjustment component 2 includes an adjustment rod 22 arranged along a first direction. In use, the first direction is consistent with the corn harvester's travel direction, and it is equipped with at least one set of push rods 24. The ear-picking sub-plates 10 are provided with a bent portion 13. The end of push rod 24 is connected to the adjustment rod 22. When the gap of the ear-picking plate group 1 needs to be adjusted, the adjustment rod 22 is driven axially to pull the inclined plane 251 to move. The inclined plane 251 applies an axial outward thrust to the push rod 24, which in turn provides a thrust to the ear-picking sub-plate 10, pushing the ear-picking sub-plate 10 to move. This achieves the effect of reducing the gap of the ear-picking plate group 1. After the adjustment is completed, the adjustment sub-plate is locked to the frame by passing the locking bolt through the strip hole 11. When the gap of the ear-picking plates needs to be increased, the adjustment rod 22 can be driven to move a certain distance in the opposite direction. Then the locking bolt is loosened, so that each group of ear-picking sub-plates 10 moves away from each other, pushing the push rod 24 to move until the end of the push rod 24 abuts against the inclined plane 251, thus completing the adjustment. Then the locking bolt is tightened. In this way, the efficiency of the gap adjustment of the ear-picking plate group 1 can be improved.

[0025] Furthermore, it should be noted that in practical applications, the adjusting rods 22 of multiple sets of adjusting components 2 can be connected to the same hydraulic cylinder via connecting rods. The hydraulic cylinder can synchronously drive the adjusting rods 22 of multiple sets of adjusting components 2, thereby achieving more convenient adjustment.

[0026] Furthermore, as a specific implementation method, refer to Figures 1-3 In practical applications, two tension springs 20 can be configured in each set of adjustment components 2, and a hook 12 is provided on the tassel picking plate. The two ends of the tension springs 20 are hooked to the hook 12. The convenience of adjustment is further improved through the cooperation of the tension springs 20.

[0027] It should be noted that in actual use, refer to Figure 3 The adjusting component 2 is set lower than the ear-picking plate group 1, and the tension spring 20 is also set as close as possible to the pull rod, so that it can be spaced apart from the harvesting chain above and does not affect the normal operation of the harvesting chain.

[0028] Furthermore, as a preferred embodiment, refer to Figures 1-5 It also includes a housing 21, with the push rod 24 inserted and guided on the side wall of the housing 21 and at the end of the housing 21. Specifically, this arrangement facilitates connection of the housing 21 to the frame, achieves dustproof effect, and improves service life.

[0029] Furthermore, specifically, as a preferred embodiment, refer to Figure 4 , Figure 5 The end of the housing 21 furthest from the adjusting rod 22 is also threaded with a stroke adjusting bolt 23, the axis of which is parallel to the adjusting rod 22. Specifically, to prevent the adjusting rod 22 from being adjusted too much in the axial direction, causing the push rod 24 to intersect with the inclined surface 251, a stroke adjusting bolt 23 is threaded at the end of the housing 21. By adjusting the stroke adjusting bolt 23, when the end of the stroke adjusting bolt 23 abuts against the adjusting rod 22, the end of the inclined surface 251 furthest from the stroke adjusting bolt 23 corresponds to the end of the push rod 24, thereby achieving a limiting effect.

[0030] Furthermore, on some models of corn harvesters, depending on the customer's choice, the adjusting rod 22 is not equipped with a unified driving hydraulic cylinder on the lower configuration models. In this case, the user can adjust the axial direction of the adjusting rod 22 by adjusting the stroke adjusting bolt 23. During installation, the stroke adjusting bolt 23 is designed at the front end of the housing 21 near the vehicle body for easy adjustment.

[0031] Furthermore, an adjusting member 25 is provided on the adjusting rod 22, and the inclined surface 251 is disposed between the end face and the side face of the adjusting member 25 away from the stroke adjusting bolt 23. Specifically, refer to... Figure 4 , Figure 5 The adjusting rod 22 is integrally provided with a block-shaped adjusting component 25. The inclined surface 251 is designed between the end face and the side face. With this setting, when the adjusting rod 22 applies a pulling force, the inclined surface 251 can apply an outward pushing force to the push rod 24, making the force distribution more reasonable.

[0032] Furthermore, as a preferred embodiment, an elastic element is provided between the adjusting rod 22 and the housing 21. This elastic element provides a spring force to the adjusting rod 22 towards the stroke adjusting bolt 23, which abuts against the adjusting member 25. Specifically, by providing the elastic element, a return spring force is provided to the adjusting rod 22. In lower-spec models, the adjusting rod 22 can be adjusted bidirectionally using the elastic element and the stroke adjusting bolt 23 to meet adjustment requirements.

[0033] Further, as a preferred embodiment, the elastic element is a compression spring 26 sleeved on the end of the adjusting rod 22 away from the stroke adjusting bolt 23. One end of the compression spring 26 abuts against the housing 21, and the other end abuts against the adjusting element 25. Specifically, refer to... Figure 4 There are two sets of push rod 24 components and two corresponding adjustment components 25. The two sets of push rod 24 components can improve the adjustment balance and achieve a better adjustment effect. The compression spring 26 provides the return force for the adjustment rod 22, which can make the structure simpler, more compact and easier to set. It should be noted that the elastic element can also be a tension spring 20 set between the adjustment rod 22 and the housing 21.

[0034] Furthermore, as a specific implementation, the push rod 24 is perpendicular to the adjusting rod 22, and its end is provided with a threaded end 240. Specifically, the guide rod 24, perpendicular to the adjusting rod 22, is set on the side wall of the housing 21. This arrangement provides more reasonable force distribution. The threaded end 240 at the end of the push rod 24 allows it to be threadedly connected to the bent part 13 of the picking plate 10. In practical applications, the push rod 24 is a cylindrical smooth rod, which facilitates separation and installation from the housing 21.

[0035] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A mechanism for adjusting the gap between the ear-picking plates, characterized in that, include: The adjustment assembly (2) is located between adjacent ear-picking plate groups (1) and includes an adjustment rod (22) arranged along a first direction and at least one set of push rods (24) spaced apart along the axial direction of the adjustment rod (22). Each set of push rods (24) includes two symmetrically arranged on both sides of the adjustment rod (22). The push rods (24) have two inclined surfaces (251) corresponding to each set of push rods (24). The axis of the push rods (24) intersects with the axis of the adjustment rods (22).

2. The ear-picking plate gap adjustment mechanism according to claim 1, characterized in that, It also includes a housing (21), the push rod (24) is inserted and guided on the side wall of the housing (21), and the push rod (24) is inserted and guided at the end of the housing (21).

3. The ear-picking plate gap adjustment mechanism according to claim 2, characterized in that, The end of the housing (21) away from the adjusting rod (22) is also threaded with a stroke adjusting bolt (23), and the axis of the stroke adjusting bolt (23) is parallel to the adjusting rod (22).

4. The ear-picking plate gap adjustment mechanism according to claim 3, characterized in that, An adjusting element (25) is provided on the adjusting rod (22), and the inclined surface (251) is located between the end face and the side face of the adjusting element (25) away from the stroke adjusting bolt (23).

5. The ear-picking plate gap adjustment mechanism according to claim 4, characterized in that, An elastic element is provided between the adjusting rod (22) and the housing (21). The elastic element can provide elastic force to the adjusting rod (22) in the direction of approaching the stroke adjusting bolt (23). The stroke adjusting bolt (23) abuts against the adjusting element (25).

6. The ear-picking plate gap adjustment mechanism according to claim 5, characterized in that, The elastic element is a compression spring (26) sleeved on the end of the adjusting rod (22) away from the stroke adjusting bolt (23). One end of the compression spring (26) abuts against the housing (21), and the other end abuts against the adjusting element (25).

7. The ear-picking plate gap adjustment mechanism according to any one of claims 4-6, characterized in that, The push rod (24) is perpendicular to the adjusting rod (22) and has a threaded end (240) at its end.

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