Adjustable agricultural machinery connecting shaft

Abstract

The utility model discloses an adjustable agricultural machinery connecting shaft, which relates to the technical field of connecting shafts and comprises a connecting shaft body, the connecting shaft body is of a hollow structure, internal threads are arranged in the connecting shaft body, a lubricating automatic extrusion structure is arranged in the connecting shaft body, and a limiting structure is mounted on the upper wall surface of the connecting shaft body. A plurality of lubricating oil outlets are formed in the side wall surface of the connecting shaft body; the lubricating automatic extrusion structure comprises an extrusion plate, an extrusion spring and an extrusion baffle; the extrusion baffle is installed in the connecting shaft body through threads, one end of the extrusion spring is connected with the inner side of the extrusion baffle, and the extrusion plate is connected with the other end of the extrusion spring; according to the utility model, the lubricating oil can be automatically supplemented to the gap between the shaft and the shaft connecting piece, and the supplementing speed of the lubricating oil can be adjusted according to the condition of using the lubricating oil, so that the direct friction between the shaft and the connecting piece is avoided, and the service life of agricultural machinery is prolonged to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting shafts, in particular to an adjustable connecting shaft for agricultural machinery. Background Art

[0002] A shaft is a cylindrical object that passes between bearings, wheels, or gears, though some are square. A shaft is a mechanical component that supports rotating parts and rotates with them to transmit motion, torque, or bending moment. It is typically a round metal rod, with sections of varying diameters.

[0003] Shafts are also essential for agricultural machinery. For example, agricultural tractors and trailers require connecting shafts for articulation. Due to the relative motion between the shafts and the connecting parts, shaft lubrication is very important. Agricultural machinery is affected by the seasons, and during busy farming seasons, people often forget to lubricate and maintain the shafts, resulting in direct friction between the shafts and the connecting parts, which leads to irreparable damage and reduces the service life of agricultural machinery. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an adjustable connecting shaft for agricultural machinery.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An adjustable agricultural machinery connecting shaft comprises: a connecting shaft body 1, the connecting shaft body 1 being a hollow structure, and an internal thread being provided inside the connecting shaft body 1, an automatic lubrication extrusion structure being provided inside the connecting shaft body 1, a limiting structure being installed on the upper wall surface of the connecting shaft body 1, and a plurality of lubrication oil outlet holes 2 being opened on the side wall surface of the connecting shaft body 1; the automatic lubrication extrusion structure comprises: an extrusion plate 3, an extrusion spring 4 and an extrusion baffle 5; the extrusion baffle 5 is installed inside the connecting shaft body 1 by means of threads, one end of the extrusion spring 4 is connected to the inner side of the extrusion baffle 5, and the extrusion plate 3 is connected to the other end of the extrusion spring 4.

[0007] The present invention is further configured such that the limiting structure includes: a limiting main baffle 6 and four limiting auxiliary baffles 7; the limiting main baffle 6 is installed on the upper wall surface of the connecting shaft body 1, and the four limiting auxiliary baffles 7 are respectively installed on the side wall surfaces of the limiting main baffle 6.

[0008] The present invention is further configured such that a limiting nut 8 is movably installed on the exterior of the connecting shaft body 1 through an external thread.

[0009] The present invention is further configured such that a handle 9 is installed on the upper wall surface of the position limiting main baffle 6 .

[0010] The present invention is further configured such that a hexagonal hole is provided on the lower wall surface of the extrusion baffle 5 .

[0011] The utility model is further configured such that a plurality of lubricating oil outlet holes 2 are evenly distributed outside the connecting shaft body 1 .

[0012] The beneficial effects of the present invention are as follows: the present invention can automatically replenish the lubricating oil to the gap between the shaft and the shaft connecting part, and can adjust the replenishing speed of the lubricating oil according to the use of the lubricating oil, thereby avoiding direct friction between the shaft and the connecting part, and extending the service life of the agricultural machinery to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of an adjustable agricultural machinery connecting shaft proposed by the utility model;

[0014] Figure 2 This is an exploded schematic diagram of the partial structure of an adjustable agricultural machinery connecting shaft proposed by the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of an adjustable agricultural machinery connecting shaft proposed by the utility model.

[0016] In the figure: 1. Connecting shaft body; 2. Lubrication oil outlet hole; 3. Extrusion plate; 4. Extrusion spring; 5. Extrusion baffle; 6. Limit main baffle; 7. Limit auxiliary baffle; 8. Limit nut; 9. Handle. DETAILED DESCRIPTION

[0017] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0018] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this patent.

[0020] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0021] Reference Figure 1-3 , an adjustable agricultural machinery connecting shaft, comprising: a connecting shaft body 1, the connecting shaft body 1 is a hollow structure, and the interior of the connecting shaft body 1 is provided with an internal thread, the interior of the connecting shaft body 1 is provided with an automatic lubrication extrusion structure, the upper wall surface of the connecting shaft body 1 is installed with a limiting structure, and the side wall surface of the connecting shaft body 1 is provided with a plurality of lubrication oil holes 2; the automatic lubrication extrusion structure comprises: an extrusion plate 3, an extrusion spring 4 and an extrusion baffle 5; the extrusion baffle 5 is installed inside the connecting shaft body 1 through a thread, one end of the extrusion spring 4 is connected to the inner side of the extrusion baffle 5, and the extrusion plate 3 is connected to the other end of the extrusion spring 4, and a limiting nut 8 is movably installed on the outside of the connecting shaft body 1 through an external thread, the lower wall surface of the extrusion baffle 5 is provided with an inner hexagonal hole, and a plurality of lubrication oil holes 2 are evenly distributed outside the connecting shaft body 1.

[0022] Specifically, the limiting structure includes: a limiting main baffle 6 and four limiting auxiliary baffles 7; the limiting main baffle 6 is installed on the upper wall surface of the connecting shaft body 1, and the four limiting auxiliary baffles 7 are respectively installed on the side walls of the limiting main baffle 6, and a handle 9 is installed on the upper wall surface of the limiting main baffle 6.

[0023] Working principle: When using the utility model, the operator first removes the extrusion baffle 5 through the thread. Since the extrusion spring 4 and the extrusion plate 3 are connected to the extrusion baffle 5, all three are removed. The operator puts the lubricating oil of the agricultural machinery into the interior of the connecting shaft body 1, and then the operator inserts the extrusion plate 3 and the extrusion spring 4 into the interior of the connecting shaft body 1, and allows the extrusion baffle 5 to be twisted into the interior of the connecting shaft body 1 through the thread. At this time, the extrusion spring 4 is in a compressed state, and then the operator uses the handle 9 to connect the connecting shaft body 1. It is installed inside the agricultural machinery and is fixed by the limiting nut 8, the limiting main baffle 6 and the four limiting auxiliary baffles 7. Under the action of the extrusion spring 4, the lubricating oil is squeezed out from the lubricating oil outlet 2 to lubricate the connecting shaft body 1 and the connector bracket. When the lubricating oil is consumed, the extrusion spring 4 continues to extend, and the extrusion plate 3 continues to squeeze the lubricating oil out of the lubricating oil outlet 2 to replenish the lubricating oil, thereby ensuring that there is no direct friction between the connecting shaft body 1 and the agricultural machinery connector, thereby extending the service life of the connecting shaft body 1.

[0024] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable agricultural machinery connecting shaft, comprising: The connecting shaft body (1) is characterized in that the connecting shaft body (1) is a hollow structure, and the interior of the connecting shaft body (1) is provided with an internal thread, the interior of the connecting shaft body (1) is provided with a lubricating automatic extrusion structure, the upper wall surface of the connecting shaft body (1) is installed with a limiting structure, and the side wall surface of the connecting shaft body (1) is provided with a plurality of lubricating oil outlet holes (2); the lubricating automatic extrusion structure comprises: an extrusion plate (3), an extrusion spring (4) and an extrusion baffle (5); the extrusion baffle (5) is installed inside the connecting shaft body (1) through a thread, one end of the extrusion spring (4) is connected to the inner side of the extrusion baffle (5), and the extrusion plate (3) is connected to the other end of the extrusion spring (4).

2. The adjustable agricultural machinery connecting shaft according to claim 1, characterized in that: The limiting structure comprises: a limiting main baffle (6) and four limiting auxiliary baffles (7); The limiting main baffle (6) is installed on the upper wall surface of the connecting shaft body (1), and the four limiting auxiliary baffles (7) are respectively installed on the side wall surfaces of the limiting main baffle (6).

3. The adjustable agricultural machinery connecting shaft according to claim 1, characterized in that: A limiting nut (8) is movably mounted on the exterior of the connecting shaft body (1) via an external thread.

4. The adjustable agricultural machinery connecting shaft according to claim 2, characterized in that: A handle (9) is installed on the upper wall surface of the position-limiting main baffle (6).

5. The adjustable agricultural machinery connecting shaft according to claim 1, characterized in that: The lower wall surface of the extrusion baffle (5) is provided with a hexagonal hole.

6. The adjustable agricultural machinery connecting shaft according to claim 1, characterized in that: The plurality of lubricating oil outlet holes (2) are evenly distributed outside the connecting shaft body (1).

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