Cutter head for corn harvester

Abstract

The utility model discloses a cutter head for a corn harvester, and relates to the technical field of agricultural machinery. The rotating disc comprises a rotating disc body, and further comprises a mounting groove body, the reinforcing plate body is fixed in the mounting groove body, the cutting assembly is circumferentially distributed outside the rotating disc body, the adjusting assembly is arranged in the center of the upper end face of the reinforcing plate body, and the transmission assembly is arranged over the rotating disc body and used for driving the rotating disc body to rotate. The lifting plate can be driven to move up and down through the arranged hollow hydraulic cylinder, when the lifting plate moves up and down, the connecting plate body can be pulled to drive the peripheral arc-shaped cutting plates to synchronously move along with the sliding plate body in the linear direction of the sliding groove body, and the distances between the arc-shaped cutting plates and the rotating disc body can be simultaneously and uniformly adjusted; the cutting radius is changed, adjustment is more convenient, large enough centrifugal force can be borne through the hollow hydraulic cylinder, and the stability and safety of the arc-shaped cutting board in the rotating process can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, in particular to a knife disc for a corn harvester. Background Art

[0002] Grain combine harvester, also known as combine harvester, is a combined machine for harvesting crops. It was called combine in the early 1950s. It is a harvesting machine that can complete the processes of harvesting, threshing, separating stems, and removing debris of cereal crops at one time, and obtain grains directly from the field. Before the advent of combine harvesters, machines such as threshers and mechanical harvesters greatly improved agricultural productivity in the 19th century, which made it possible to harvest more grain with fewer workers than before. However, an invention in the late 19th century further improved this efficiency. The combine harvester combines the harvester and thresher in one whole unit, allowing farmers to complete the harvesting and threshing with a single operation, thereby saving manpower and material resources and greatly reducing the burden on farmers.

[0003] A knife disc for a corn combine harvester with a search announcement number of CN216673868U is specifically disclosed: a knife disc, a connecting shaft is coaxially fixed on the knife disc, the connecting shaft is connected to the knife disc transmission system of the harvester and drives the connecting shaft to rotate, a plurality of blades are arranged on the knife disc, a plurality of connecting rods are passed through the knife disc along its axial array, the connecting rod can slide freely along the radial direction of the knife disc on the knife disc, a sliding groove for the connecting rod to be inserted is provided on the knife disc, the blade is fixed to the end of the connecting rod passing through the knife disc, a mounting groove in the form of a blind hole is provided on the knife disc, a driving disc is coaxially connected in the mounting groove, a plurality of hinge rods are hinged on the driving disc along its axial array, one end of the hinge rod away from the driving disc is correspondingly hinged to the end of the connecting rod passing through the mounting groove, an electromagnet on the fixed shaft, a spring mounted on the fixed shaft is provided between the electromagnet and the limit ring, and the two ends of the spring elastic force direction are elastic The limit ring and the electromagnet are pressed against each other, and the limit ring is driven to move toward the inner side of the installation cavity. The limit ring is made of magnetic conductive material, and magnetism is generated by energizing the electromagnet, and the limit ring is driven to move toward the direction of the electromagnet, thereby causing the protrusion to be out of the engagement state with the slot, and the driving disk can rotate. After rotation, the electromagnet is powered off and loses its magnetism. At this time, the spring generates a push force on the limit ring, thereby causing the limit ring to slide downward and causing the protrusion to engage in the slot. Although the above-mentioned equipment can adjust the cutting radius of the cutter disc, the blade is limited by the electromagnet in conjunction with the spring. Not only is it troublesome to adjust the cutting radius, but the blade will generate great centrifugal force during high-speed rotation. It is difficult to ensure the stability of the blade by only relying on the electromagnet in conjunction with the spring. If looseness occurs, it may cause a dangerous situation. Therefore, we propose a cutter disc for corn harvesters to solve this problem. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a cutter disc for a corn harvester, which can effectively solve the problems of the prior art.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a knife disc for a corn harvester, comprising a rotating disc body and also comprising:

[0007] The installation tank is provided on the upper end surface of the rotating disk;

[0008] The reinforcing plate is fixed inside the mounting groove, and the cross section of the reinforcing plate is a "cross" structure, which is used to enhance the stability of the rotating disk structure;

[0009] The cutting components are circumferentially distributed outside the rotating disc body and are used to cut the diameter of the corn stalks;

[0010] An adjusting component is arranged at the center of the upper end surface of the reinforcing plate body and is used to adjust the cutting radius of the cutting component;

[0011] The transmission assembly is arranged just above the rotating disc body and is used for driving the rotating disc body to rotate.

[0012] Furthermore, sliding grooves are distributed on the outer circumference of the rotating disk.

[0013] Furthermore, the cutting assembly includes an arc blade and a sliding plate body, the sliding plate body is circumferentially distributed and slidably engaged in the interior of the sliding slot body, and one end of the sliding plate body extends into the interior of the mounting slot body. The arc blade is fixed at the other end of the sliding plate body, and the arc blade has an arc-shaped fan blade shape.

[0014] Furthermore, the adjustment assembly includes a hollow hydraulic cylinder, a lifting plate and a connecting plate body, the hollow hydraulic cylinder is fixed at the central position of the upper end surface of the reinforcing plate body, the lifting plate is fixed at the central position of the upper end surface of the hollow hydraulic cylinder, one end of the connecting plate body is circumferentially hinged to the side of the connecting plate body, and the other end of the connecting plate body is hinged to the sliding plate body.

[0015] Furthermore, the transmission assembly includes a drive motor and a drive shaft. The drive motor is arranged directly above the rotating disk. The drive shaft is fixed to the output end of the drive motor. The drive shaft passes through the hollow hydraulic cylinder and is fixedly connected to the upper end surface of the rotating disk.

[0016] The utility model has the following beneficial effects:

[0017] The utility model can drive the lifting plate to move up and down through the hollow hydraulic cylinder provided. When the lifting plate moves up and down, the surrounding arc-shaped knife plates can be driven to move synchronously with the sliding plate body along the linear direction of the sliding groove body by pulling the connecting plate body, so that the distance between multiple groups of arc-shaped knife plates and the rotating disk body can be adjusted simultaneously and uniformly to change the cutting radius. The adjustment is more convenient, and the hollow hydraulic cylinder can withstand a sufficiently large centrifugal force to ensure the stability and safety of the arc-shaped knife plates during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a top view schematic diagram of a cutter disc for a corn harvester of the utility model;

[0020] Figure 2 This is a schematic diagram of a cutter disc for a corn harvester according to the utility model when viewed from above;

[0021] Figure 3 It is a schematic cross-sectional view of a cutter disc for a corn harvester of the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Rotating disc body; 2. Mounting trough body; 3. Sliding trough body; 4. Hollow hydraulic cylinder; 5. Sliding plate body; 6. Arc-shaped blade plate; 7. Lifting plate; 8. Driving motor; 9. Connecting plate body; 10. Transmission shaft body; 11. Strengthening plate body. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] See also Figure 1-3 As shown, the utility model is a cutter disc for a corn harvester, comprising a rotating disc body 1, and also comprising:

[0026] The installation groove 2 is opened on the upper end surface of the rotating disc body 1 to facilitate the subsequent installation of accessories. The reinforcing plate 11 is fixed inside the installation groove 2, and the cross section of the reinforcing plate 11 is a "cross" structure, which is used to enhance the stability of the rotating disc body 1 structure;

[0027] The cutting assembly is circumferentially distributed outside the rotating disk body 1 and is used to cut the diameter of corn stalks. The outer circumferential distribution of the rotating disk body 1 is provided with a sliding groove body 3. The cutting assembly includes an arc-shaped blade plate 6 and a sliding plate body 5. The sliding plate body 5 is circumferentially distributed and slidably engaged inside the sliding groove body 3, and one end of the sliding plate body 5 extends into the installation groove body 2. The arc-shaped blade plate 6 is fixed to the other end of the sliding plate body 5, and the arc-shaped blade plate 6 has an arc-shaped fan blade shape. The sliding groove body 3 provided can limit the sliding direction of the sliding plate body 5, making it more stable during the subsequent adjustment process, and the arc-shaped blade plate 6 provided can make it easier to break the diameter of corn stalks during high-speed rotation, and the cutting effect is better;

[0028] The adjusting component is arranged at the central position of the upper end surface of the reinforcing plate body 11, and is used to adjust the cutting radius of the cutting component. The adjusting component includes a hollow hydraulic cylinder 4, a lifting plate 7 and a connecting plate body 9. The hollow hydraulic cylinder 4 is fixed at the central position of the upper end surface of the reinforcing plate body 11, and the lifting plate 7 is fixed at the central position of the upper end surface of the hollow hydraulic cylinder 4. One end of the connecting plate body 9 is hingedly connected to the side surface of the connecting plate body 9 by a circumferential distribution, and the other end of the connecting plate body 9 is hingedly connected to the sliding plate body 5. The lifting plate 7 can be driven up and down by the arranged hollow hydraulic cylinder 4. When the lifting plate 7 moves up and down, the surrounding arc-shaped blade plates 6 can be driven to move synchronously along the linear direction of the sliding groove body 3 by pulling the connecting plate body 9. The distance between multiple groups of arc-shaped blade plates 6 and the rotating disk body 1 can be uniformly adjusted at the same time to change their cutting radius. The adjustment is more convenient, and the hollow hydraulic cylinder 4 can withstand sufficiently large centrifugal force to ensure the stability and safety of the arc-shaped blade plates 6 during rotation.

[0029] The transmission assembly is arranged directly above the rotating disk body 1 and is used to drive the rotating disk body 1 to rotate. The transmission assembly includes a driving motor 8 and a transmission shaft 10. The driving motor 8 is arranged directly above the rotating disk body 1. The transmission shaft 10 is fixed to the output end of the driving motor 8, and the transmission shaft 10 passes through the hollow hydraulic cylinder 4 and is fixedly connected to the upper end surface of the rotating disk body 1. The driving motor 8 at the top can drive the transmission shaft 10 to rotate, and then the rotating disk body 1 at the bottom can be driven to rotate synchronously to achieve the cutting of the diameter of the corn stalks.

[0030] Working principle: First, the installation slot 2 is opened on the upper end surface of the rotating disc body 1 to facilitate the subsequent installation of accessories. The reinforcing plate 11 is fixed inside the installation slot 2 to enhance the structural stability of the rotating disc body 1. The driving motor 8 at the top can drive the transmission shaft 10 to rotate, thereby driving the rotating disc body 1 at the bottom to rotate synchronously.

[0031] When adjusting, the lifting plate 7 can be driven to move up and down by the hollow hydraulic cylinder 4. When the lifting plate 7 moves up and down, the surrounding arc-shaped blades 6 can be driven to move synchronously along the linear direction of the sliding groove 3 with the sliding plate 5 by pulling the connecting plate 9. The distance between multiple groups of arc-shaped blades 6 and the rotating disk 1 can be adjusted simultaneously and uniformly to change the cutting radius. The adjustment is more convenient, and the hollow hydraulic cylinder 4 can withstand a sufficiently large centrifugal force to ensure the stability and safety of the arc-shaped blade 6 during rotation.

[0032] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A cutter disc for a corn harvester, comprising a rotating disc body (1), characterized in that: Also includes: A mounting trough (2) is provided on the upper end surface of the rotating disk (1); A reinforcing plate body (11) is fixed inside the mounting groove body (2), and the cross section of the reinforcing plate body (11) is in a "cross"-shaped structure, and is used to enhance the stability of the structure of the rotating disk body (1); Cutting components, circumferentially distributed outside the rotating disc body (1), used for cutting the diameter of corn stalks; An adjustment component, arranged at the center of the upper end surface of the reinforcing plate body (11), and used for adjusting the cutting radius of the cutting component; The transmission assembly is arranged directly above the rotating disc body (1) and is used to drive the rotating disc body (1) to rotate.

2. A corn harvester cutter disc according to claim 1, characterized in that: Sliding grooves (3) are arranged on the outer circumference of the rotating disk (1).

3. A corn harvester cutter disc according to claim 2, characterized in that: The cutting assembly comprises an arc-shaped blade plate (6) and a sliding plate body (5); the sliding plate body (5) is circumferentially distributed and slidably engaged in the interior of the sliding groove body (3); one end of the sliding plate body (5) extends into the interior of the mounting groove body (2); the arc-shaped blade plate (6) is fixed to the other end of the sliding plate body (5); and the arc-shaped blade plate (6) has an arc-shaped fan blade shape.

4. The cutter disc for corn harvester according to claim 3, characterized in that: The adjustment assembly comprises a hollow hydraulic cylinder (4), a lifting plate (7) and a connecting plate body (9); the hollow hydraulic cylinder (4) is fixed at the central position of the upper end surface of the reinforcing plate body (11); the lifting plate (7) is fixed at the central position of the upper end surface of the hollow hydraulic cylinder (4); one end of the connecting plate body (9) is connected to the side surface of the connecting plate body (9) by a circumferentially distributed hinge, and the other end of the connecting plate body (9) is hingedly connected to the sliding plate body (5).

5. The cutter disc for corn harvester according to claim 1, characterized in that: The transmission assembly comprises a drive motor (8) and a drive shaft (10); the drive motor (8) is arranged directly above the rotating disc body (1); the drive shaft (10) is fixed to the output end of the drive motor (8); and the drive shaft (10) passes through the hollow hydraulic cylinder (4) and is fixedly connected to the upper end surface of the rotating disc body (1).

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