Self-locking mechanism, half-feeding harvester chopper and harvester

Abstract

The utility model relates to the technical field of harvester chopper, in particular to a self-locking mechanism, a half-feeding harvester chopper and a harvester. According to the structure of the self-locking mechanism, a first locking shaft and a second locking shaft are arranged on the two sides of the upper portion of the fixing frame respectively. The movable support is used for being connected with a feeding shaft. The movable bracket can rotate relative to the fixed frame; a locking hook positioning shaft and a locking hook limiting shaft are arranged at the upper part of the movable bracket; the first locking hook and the second locking hook are connected through a spring and can be connected with the first locking shaft and the second locking shaft in a hanging mode respectively. The locking hook positioning holes in the first locking hook and the second locking hook are both formed in the locking hook positioning shaft in a sleeving mode, the locking hook limiting holes are both formed in the locking hook limiting shaft in a sleeving mode, and the locking hook guiding hole is used for being connected with a traction shaft. According to the scheme, the position of the feeding shaft can be rapidly adjusted, self-locking can be achieved, and the position change amplitude of the feeding shaft can be adjusted by adjusting the distance between the center of the feeding shaft and the rotating center of the movable support.

Description

Technical Field

[0001] The utility model relates to the technical field of harvester choppers, in particular to a self-locking mechanism, a semi-feeding harvester chopper and a harvester. Background Art

[0002] The semi-feed harvester chopper is equipped with a cutting shaft and a feeding shaft to cut the straw. During operation, in order to improve the efficiency and quality of straw cutting, the axis distance between the feeding shaft and the cutting shaft needs to be adjusted at any time. When adjusting the axis distance, keep the cutting shaft fixed and adjust the position of the feeding shaft. After the adjustment is completed, ensure that the feeding shaft is quickly fixed.

[0003] In existing semi-feeding harvester choppers, the position of the feeding shaft is either fixed and cannot be adjusted, or the adjustment process is inconvenient. Utility Model Content

[0004] The purpose of the present application is to provide a self-locking mechanism, a semi-feeding harvester chopper and a harvester, which can quickly adjust the position of the feeding shaft and achieve self-locking.

[0005] In a first aspect, the present application provides a self-locking mechanism, comprising a fixed frame, a movable bracket, a first locking hook, and a second locking hook;

[0006] The first locking shaft and the second locking shaft are respectively provided on both sides of the upper part of the fixing frame, and the rotating shaft mounting hole is provided on the lower part;

[0007] The movable bracket is used to connect with the feeding shaft; a movable bracket rotating shaft is provided at the lower part of the back of the movable bracket, and the movable bracket rotating shaft is inserted into the rotating shaft mounting hole, so that the movable bracket can rotate relative to the fixed bracket; a locking hook positioning shaft and a locking hook limiting shaft arranged vertically are provided at the upper part of the movable bracket;

[0008] The first locking hook and the second locking hook are arranged in opposite directions and are connected by a spring; a locking hook positioning hole, a locking hook limiting hole and a locking hook guide hole are respectively provided on the first locking hook and the second locking hook; the two locking hook positioning holes are both sleeved on the locking hook positioning shaft, and the two locking hook limiting holes are both sleeved on the locking hook limiting shaft; the two locking hook guide holes are used to connect with the traction shaft;

[0009] The first locking hook and the second locking hook are further provided with a locking shaft hanging notch respectively, which are used to be hung with the first locking shaft and the second locking shaft respectively.

[0010] In a preferred embodiment, a guide and limit frame is further provided on the upper portion of the fixing frame. The guide and limit frame is a long plate that can limit the movement of the movable bracket in a direction away from the fixing frame.

[0011] In a preferred embodiment, the locking hook guide hole is an arc-shaped hole.

[0012] In a preferred embodiment, the locking hook limiting hole is a square hole, and the cross-sectional area of ​​the locking hook limiting shaft is smaller than the area of ​​the locking hook limiting hole.

[0013] In a preferred embodiment, the end of the traction shaft is inserted into the two locking hook guide holes.

[0014] In a preferred embodiment, spring hanging holes are respectively provided on the upper portions of the first locking hook and the second locking hook, and the spring is connected to the first locking hook and the second locking hook through the spring hanging holes.

[0015] In a preferred embodiment, the end of the feeding shaft is fixedly connected to the middle area of ​​the movable bracket.

[0016] In a preferred embodiment, the first locking hook and the second locking hook further include an abutting edge respectively. The abutting edge is arranged adjacent to the locking shaft hanging notch and can abut against the first locking shaft or the second locking shaft.

[0017] In a second aspect, the present application also provides a semi-feed harvester chopper, including the self-locking mechanism.

[0018] In a third aspect, the present application also provides a harvester comprising the semi-feed harvester chopper.

[0019] The utility model has the following beneficial effects:

[0020] Through the technical solution of the present application, the position of the feeding shaft can be quickly adjusted and self-locking can be achieved. By adjusting the distance between the center of the feeding shaft and the rotation center of the movable bracket, the amplitude of the feeding shaft position change can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1A schematic diagram of a self-locking mechanism provided by an embodiment of the present utility model from a first perspective;

[0023] Figure 2 A schematic diagram of the self-locking mechanism provided by an embodiment of the present utility model from a second perspective;

[0024] Figure 3 A schematic diagram of a fixing frame of a self-locking mechanism provided by an embodiment of the present utility model from a first perspective;

[0025] Figure 4 A schematic diagram from a second perspective of a fixing frame of a self-locking mechanism provided by an embodiment of the present utility model;

[0026] Figure 5 A schematic diagram of a movable bracket of a self-locking mechanism provided by an embodiment of the present utility model from a first perspective;

[0027] Figure 6 A schematic diagram from a second perspective of a movable bracket of a self-locking mechanism provided by an embodiment of the present utility model;

[0028] Figure 7 A schematic diagram of a locking hook of a self-locking mechanism provided in an embodiment of the present utility model;

[0029] Numbers in the figure:

[0030] 1. Fixed bracket; 1-1. First locking shaft; 1-2. Second locking shaft; 1-3. Rotating shaft mounting hole;

[0031] 2. Movable bracket; 2-1. Locking hook positioning axis; 2-2. Locking hook limiting axis; 2-3. Movable bracket rotation axis;

[0032] 3-1, first locking hook; 3-2, second locking hook; 3-2-1, spring mounting hole; 3-2-2, locking shaft mounting notch; 3-2-3, locking hook positioning hole; 3-2-4, locking hook limiting hole; 3-2-5, locking hook guide hole;

[0033] 4. Spring; 5. Guide limit frame; 6. Traction shaft; 7. Feed shaft. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. The components of the embodiments of the present invention generally described and labeled in the drawings can be arranged and designed in a variety of different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application, provided in the drawings, is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0036] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0037] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and are merely for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0038] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0039] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0041] As shown in Figures 1 to 7 The self-locking mechanism provided by the present application comprises a fixed frame 1, a movable support 2, a first locking hook 3-1 and a second locking hook 3-2.

[0042] The fixing frame 1 is plate-shaped, with a first locking shaft 1-1 and a second locking shaft 1-2 respectively provided on both sides of the upper portion, and a rotating shaft mounting hole 1-3 provided on the lower portion.

[0043] The middle part of the movable bracket 2 is fixedly connected to one end of the feeding shaft 7; the movable bracket rotating shaft 2-3 is set at the lower part of the back side of the movable bracket 2, and the movable bracket rotating shaft 2-3 is inserted into the rotating shaft mounting hole 1-3 of the fixed frame 1, so that the movable bracket 2 can rotate relative to the fixed frame 1; the upper part of the movable bracket 2 is provided with a vertically arranged locking hook positioning shaft 2-1 and a locking hook limiting shaft 2-2.

[0044] The first locking hook 3-1 and the second locking hook 3-2 are arranged in opposite directions, and spring hanging holes are respectively provided on the upper parts of the first locking hook 3-1 and the second locking hook 3-2 (such as the spring hanging hole 3-2-1 on the second locking hook 3-2), and the spring 4 is connected to the first locking hook 3-1 and the second locking hook 3-2 through the spring hanging holes.

[0045] Taking the second locking hook 3-2 as an example, a locking hook positioning hole 3-2-3, a locking hook limiting hole 3-2-4 and a locking hook guide hole 3-2-5 are respectively provided on the first locking hook 3-1 and the second locking hook 3-2. The two locking hook positioning holes 3-2-3 are both sleeved on the locking hook positioning shaft 2-1, and the two locking hook limiting holes 3-2-4 are both sleeved on the locking hook limiting shaft 2-2; the two locking hook guide holes 3-2-5 are used to connect with the traction shaft 6;

[0046] The first locking hook 3-1 and the second locking hook 3-2 are also respectively provided with a locking shaft hanging notch (such as the locking shaft hanging notch 3-2-2 on the second locking hook 3-2), which are used to hang with the first locking shaft 1-1 and the second locking shaft 1-2 respectively.

[0047] The first locking hook 3-1 and the second locking hook 3-2 further include a contact edge respectively, which is arranged adjacent to the locking shaft hanging notch and can contact the first locking shaft 1-1 or the second locking shaft 1-2.

[0048] Taking the left extreme position as an example, the first locking hook 3-1 will hook the first locking shaft 1-1, thereby fixing the movable bracket 2. At the same time, due to the tension of the spring 4, the abutting edge of the second locking hook 3-2 fits with the second locking shaft 1-2.

[0049] A guide limit frame 5 is further provided on the upper portion of the fixed frame 1. The guide limit frame 5 is a long plate that can limit the movement of the movable bracket 2 away from the fixed frame 1. When the movable bracket 2 moves left and right, the guide limit frame 5 plays a role of limiting and guiding the movable bracket 2.

[0050] The locking hook guide hole 3-2-5 is an arc-shaped hole, which can allow the traction shaft 6 to slide within a certain range in the locking hook guide hole 3-2-5.

[0051] The locking hook limiting hole 3-2-4 is a square hole, and the cross-sectional area of ​​the locking hook limiting shaft 2-2 is smaller than the area of ​​the locking hook limiting hole 3-2-4, allowing the locking hook limiting shaft 2-2 to swing slightly in the locking hook limiting hole 3-2-4.

[0052] The working process of this technical solution is as follows:

[0053] like Figure 1 As shown, at this time, the first locking hook 3-1 is combined with the first locking shaft 1-1, and the entire mechanism is in a locked state;

[0054] When the traction shaft 6 is pulled to the right, since the traction shaft 6 is located on the right side of the locking hook guide hole on the first locking hook 3-1, the first locking hook 3-1 is pulled to rotate around the locking hook positioning shaft 2-1, so that the first locking hook 3-1 is disengaged from the first locking shaft 1-1;

[0055] Continue to pull the traction shaft 6 to the right. Due to the limit of the locking hook limit shaft 2-2, the movable bracket 2 begins to rotate to the right around the movable bracket rotation axis 2-3. At this time, the feeding shaft 7 installed on the movable bracket 2 starts to move.

[0056] Due to the tensioning effect of the spring 4, the first locking hook 3-1 and the second locking hook 3-2 are always in contact and sliding with the first locking shaft 1-1 and the second locking shaft 1-2 adjacent to each other, respectively, to support the entire mechanism;

[0057] Continue to pull the traction shaft 6 to the right, and the movable bracket 2 continues to rotate to the right around the movable bracket rotation axis 2-3. When it turns to a certain angle, the second locking hook 3-2 is combined with the second locking shaft locking column 1-2, so that the entire mechanism is in a locked state on the right side. At this time, the feeding shaft 7 moves to the right limit position.

[0058] By installing the same structure at both ends of the feeding shaft 7 and simultaneously applying force to one side at the traction shaft 6 at both ends through a connecting rod, the two ends of the feeding shaft 7 can be moved simultaneously, thereby adjusting the positions of the two ends of the feeding shaft 7 synchronously.

[0059] Through this technical solution, the position of the feeding shaft can be quickly adjusted and self-locking can be achieved. By adjusting the distance between the center of the feeding shaft and the rotation center of the movable bracket, the amplitude of the feeding shaft position change can be adjusted.

[0060] In a second aspect, this embodiment further provides a semi-feed harvester chopper, comprising the self-locking mechanism.

[0061] In a third aspect, the embodiment further provides a harvester comprising the semi-feed harvester chopper.

[0062] The semi-feed harvester chopper and the harvester have the advantages of the self-locking mechanism, which will not be repeated here.

[0063] The above only is the preferred embodiment of the present application, and is not used to limit the present application, for the person skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A self-locking mechanism, characterized in that: It includes a fixed frame, a movable bracket, a first locking hook and a second locking hook; The first locking shaft and the second locking shaft are respectively provided on both sides of the upper part of the fixing frame, and the rotating shaft mounting hole is provided on the lower part; The movable bracket is used to connect with the feeding shaft; a movable bracket rotating shaft is provided at the lower part of the back of the movable bracket, and the movable bracket rotating shaft is inserted into the rotating shaft mounting hole, so that the movable bracket can rotate relative to the fixed bracket; a locking hook positioning shaft and a locking hook limiting shaft arranged vertically are provided at the upper part of the movable bracket; The first locking hook and the second locking hook are arranged in opposite directions and are connected by a spring; a locking hook positioning hole, a locking hook limiting hole and a locking hook guide hole are respectively provided on the first locking hook and the second locking hook; the two locking hook positioning holes are both sleeved on the locking hook positioning shaft, and the two locking hook limiting holes are both sleeved on the locking hook limiting shaft; the two locking hook guide holes are used to connect with the traction shaft; The first locking hook and the second locking hook are further provided with a locking shaft hanging notch respectively, which are used to be hung with the first locking shaft and the second locking shaft respectively.

2. The self-locking mechanism according to claim 1, characterized in that: A guide and limit frame is further provided on the upper portion of the fixing frame. The guide and limit frame is a long plate that can limit the movement of the movable bracket in a direction away from the fixing frame.

3. The self-locking mechanism according to claim 1, characterized in that: The locking hook guide hole is an arc-shaped hole.

4. The self-locking mechanism according to claim 1, characterized in that: The locking hook limiting hole is a square hole, and the cross-sectional area of ​​the locking hook limiting shaft is smaller than the area of ​​the locking hook limiting hole.

5. The self-locking mechanism according to claim 1, characterized in that: The end of the traction shaft is inserted into the two locking hook guide holes.

6. The self-locking mechanism according to claim 1, characterized in that: Spring hanging holes are respectively provided on the upper parts of the first locking hook and the second locking hook, and the spring is connected to the first locking hook and the second locking hook through the spring hanging holes.

7. The self-locking mechanism according to claim 1, characterized in that: The end of the feeding shaft is fixedly connected to the middle area of ​​the movable bracket.

8. The self-locking mechanism according to claim 1, characterized in that: The first locking hook and the second locking hook further include a contact edge respectively. The contact edge is arranged adjacent to the locking shaft hanging notch and can contact the first locking shaft or the second locking shaft.

9. A semi-feed harvester chopper, characterized in that: It comprises the self-locking mechanism according to any one of claims 1 to 8.

10. A harvester, characterized in that: Including the semi-feed harvester chopper according to claim 9.

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