A new type of silage header tooth plate conveying device

Abstract

The utility model relates to a silage header new type tooth plate conveying device belongs to the silage feed harvesting equipment technical field. Technical scheme: the upper layer big tooth disc all is equipped with the profiled gap one in the middle part position of each tooth rotation outside side; The big tooth and the small tooth of the middle layer dense tooth disc all are equipped with the profiled gap two in the middle part position of each tooth rotation outside side; The tooth root part of each tooth of the lower layer curved tooth disc all is equipped with the profiled gap three rotation outside side; The profiled gap one, the profiled gap two and the profiled gap three all are matched with the outer diameter of straw. The utility model discloses a straight tooth tooth disc on the basis of traditional silage header conveying device, designs the profiled gap of crop straw adaptation, its profiled gap can accurately stick crop straw form, avoids the crop winding problem caused by the single tooth of traditional straight tooth tooth disc, and improves the smoothness of header continuous operation. The profiled gap can firmly hold the crop root to the middle part of straw, solves the defect that traditional straight tooth tooth disc gripping point disperses and is easy to slip.

Description

Technical Field

[0001] This utility model relates to a novel toothed plate conveying device for silage harvesting platform, belonging to the technical field of silage harvesting equipment. Background Technology

[0002] In agricultural production, silage harvesting machinery plays an increasingly crucial role. Among these, the conveying device of the silage header, as a core working component, directly determines the harvesting quality and operational efficiency. For example, Chinese patent application CN202122665181.8, entitled "A Large Silage Harvester Header," discloses a feeding roller with straight-edge toothed plates on each layer, primarily used to forcefully and evenly convey the crop gripped by the header to the chopper. However, in actual operation, especially when facing complex conditions such as lodged straw, high-moisture crops, or uneven yield distribution, traditional conveying devices are prone to problems such as crop entanglement, poor feeding, and even blockage. This not only causes fluctuations in equipment power and increases energy consumption but also leads to significant material loss. Therefore, how to enhance its gripping ability and conveying smoothness for crops in different states, effectively reduce blockages and entanglement, and thus reduce material loss during harvesting, has become a key technical challenge that urgently needs to be overcome to improve the overall harvesting performance of silage headers. Utility Model Content

[0003] The purpose of this utility model is to provide a new type of toothed plate conveying device for silage harvesters. Based on the straight toothed disc of the traditional harvester conveying device, each toothed disc of the conveying device is provided with a contoured notch adapted to the crop straw. During harvester operation, the contoured notch can firmly grasp the crop and feed the crop safely and neatly, solving the problems of crop entanglement, poor feeding and material loss in the prior art.

[0004] The technical solution of this utility model is: A novel toothed plate conveying device for silage cutting includes an upper large toothed disc, a middle dense toothed disc, a lower curved toothed disc, and a toothed disc connecting frame. The upper large toothed disc, the middle dense toothed disc, and the lower curved toothed disc are arranged coaxially and alternately on the toothed disc connecting frame from top to bottom. The upper large toothed disc, the middle dense toothed disc, and the lower curved toothed disc have different numbers of teeth and different tooth shapes. Each tooth on the upper large toothed disc has a contoured notch I at the center position of its outer spiral. The middle dense toothed disc has staggered large and small teeth, and each large and small tooth has a contoured notch II at the center position of its outer spiral. The tip of each tooth on the lower curved toothed disc is bent inward, and the root of each tooth on the lower curved toothed disc has a contoured notch III at its outer spiral. Contoured notches I, II, and III are all matched to the outer diameter (outer contour) of the straw.

[0005] Furthermore, the upper gear plate is composed of six upper gear plates spliced ​​together and welded circumferentially to the upper part of the gear plate connecting frame, with each upper gear plate having four teeth.

[0006] Furthermore, the middle-layer dense toothed disc is composed of six middle-layer dense toothed plates spliced ​​together and welded circumferentially to the middle position of the toothed disc connecting frame; each middle-layer dense toothed plate is provided with four large teeth, four small teeth, and small tooth half-tooth one and small tooth half-tooth two located at both ends of the middle-layer dense toothed plate. The four large teeth and four small teeth are arranged alternately. The small tooth half-tooth one and small tooth half-tooth two of two adjacent middle-layer dense toothed plates are spliced ​​together into a small tooth through dovetail grooves and dovetail blocks.

[0007] Furthermore, the lower-level curved toothed disc is composed of four lower-level curved toothed plates spliced ​​together and welded circumferentially to the lower end of the toothed disc connecting frame, with each lower-level curved toothed plate having six teeth.

[0008] Furthermore, there is a gap between the upper large toothed disc, the middle dense toothed disc, and the lower curved toothed disc, and the gap between the upper large toothed disc and the middle dense toothed disc is smaller than the gap between the lower curved toothed disc and the middle dense toothed disc.

[0009] Furthermore, the centers of the contoured notches on the large and small teeth are located on the same circumference.

[0010] The positive effects of this invention are as follows: By designing a contoured notch adapted to crop straw on the basis of the straight-toothed disc of the traditional silage header conveyor, the contoured notch can accurately conform to the shape of the crop straw, avoiding the crop entanglement problem caused by the uniform tooth shape of the traditional straight-toothed disc. This reduces the need for jamming and downtime for cleaning of the conveyor, improves the smoothness of continuous header operation, and reduces the maintenance intensity of operators. At the same time, the contoured notch can firmly grasp the crop root to the middle of the straw, solving the defects of the traditional straight-toothed disc's scattered gripping points and easy slippage, ensuring that the crop is fed in a neat posture and avoiding straw stacking, displacement, or blockage of the feeding channel. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the upper toothed plate structure in an embodiment of the present invention; Figure 3 This is a schematic diagram of the dense toothed plate structure in an embodiment of the present invention; Figure 4 This is a schematic diagram of the lower toothed plate structure in an embodiment of the present invention; In the diagram: 1. Gear plate connecting frame; 2. Upper large gear plate; 201. Contouring notch 1; 202. Middle dense gear plate; 3. Large tooth; 31. Small tooth; 32. Small tooth half tooth 1; 321. Small tooth half tooth 2; 322. Middle dense gear plate; 301. Contouring notch 2; 302. Lower curved gear plate; 4. Lower curved gear plate; 401. Contouring notch 3; 402. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments: Reference Appendix Figure 1-4 This embodiment provides a novel toothed plate conveying device for silage harvesting, comprising an upper large toothed disc 2, a middle dense toothed disc 3, a lower curved toothed disc 4, and a toothed disc connecting frame 1. The upper large toothed disc 2, the middle dense toothed disc 3, and the lower curved toothed disc 4 are arranged coaxially and alternately on the toothed disc connecting frame 1 from top to bottom. The upper large toothed disc 2, the middle dense toothed disc 3, and the lower curved toothed disc 4 have different numbers of teeth and different tooth shapes. Each tooth on the upper large toothed disc 2 has a contoured notch 202 at the center position of its outermost spiral. The middle dense toothed disc 3 has staggered large teeth. The large teeth 31 and 32, and the small teeth 32, all have a contoured notch 302 at the center of their outermost position. The centers of the contoured notches 302 on the large teeth 31 and 32 are located on the same circumference. The tip of each tooth of the lower curved tooth disc 4 is bent inward (i.e., in the direction of rotation), and the root of each tooth of the lower curved tooth disc 4 has a contoured notch 402 at its outermost position. The contoured notches 202, 302, and 402 all match the outer diameter (outer contour) of the straw. This utility model of a new toothed plate conveying device for silage cutting provides each layer of toothed discs with contoured teeth that are different from traditional straight teeth. A notch adapted to crop straw is opened on one side of the root of each tooth. During cutting operation, each toothed disc can firmly grasp the crop straw, so that the crop is safely and neatly fed in, thereby ensuring reduced crop loss and unimpeded machine operation. It can also reduce equipment overload, gear wear and other failures caused by crop entanglement, and extend the service life of conveying devices and headers.

[0013] See attached document Figure 2 The upper large gear plate 2 is composed of six upper large gear plates 201 spliced ​​together and welded circumferentially to the upper part of the gear plate connecting frame 1. Each upper large gear plate 201 has four teeth, and the contour notch 202 is located in the upper middle part of each tooth.

[0014] See attached document Figure 3The middle-layer dense toothed disc 3 is composed of six middle-layer dense toothed plates 301 spliced ​​together and welded circumferentially to the middle position of the toothed disc connecting frame 1. Each middle-layer dense toothed plate 301 is provided with four large teeth 31, four small teeth 32, and small tooth half-tooth one 321 and small tooth half-tooth two 322 located at both ends of the middle-layer dense toothed plate 301. The four large teeth 31 and four small teeth 32 are arranged alternately. The small tooth half-tooth one 321 and small tooth half-tooth two 322 of two adjacent middle-layer dense toothed plates 301 are spliced ​​together into a small tooth by dovetail groove and dovetail block. The contoured notch two 302 is located in the middle and lower part of each tooth.

[0015] See attached document Figure 4 The lower curved tooth disk 4 is composed of four lower curved tooth plates 401 spliced ​​together and welded circumferentially to the lower end of the tooth disk connecting frame 1. Each lower curved tooth plate 401 has six teeth. The tip of each tooth of the lower curved tooth disk 4 is bent inward in a spiral direction. The contoured notch 3 402 is located at the root of each tooth.

[0016] The upper large toothed disc 2, the middle dense toothed disc 3, and the lower curved toothed disc 4 are all installed in sections. When the teeth of one section of the toothed disc are damaged, only that section of the toothed disc needs to be replaced, which saves costs.

[0017] The teeth on the upper large toothed disc 2, the middle dense toothed disc 3, and the lower curved toothed disc 4 are arranged in an alternating pattern.

[0018] There is a gap between the upper large toothed disc 2, the middle dense toothed disc 3, and the lower curved toothed disc 4, and the gap between the upper large toothed disc 2 and the middle dense toothed disc 3 is smaller than the gap between the lower curved toothed disc 4 and the middle dense toothed disc 3, so that the crop straw can be separated from the conveying device after the conveying device completes the feeding operation, and avoids the crop from getting tangled in the conveying device and causing blockage.

Claims

1. A novel toothed plate conveying device for silage harvesting, characterized in that: The device comprises an upper large gear disk (2), a middle fine-tooth disk (3), a lower curved gear disk (4), and a gear disk connecting frame (1). The upper large gear disk (2), the middle fine-tooth disk (3), and the lower curved gear disk (4) are arranged coaxially and alternately on the gear disk connecting frame (1) from top to bottom. The upper large gear disk (2), the middle fine-tooth disk (3), and the lower curved gear disk (4) have different numbers of teeth and different tooth shapes. Each tooth on the upper large gear disk (2) has a contoured notch (202) at the middle position of its outermost spiral. The middle fine-tooth disk... The disc (3) is provided with staggered large teeth (31) and small teeth (32). Each tooth of the large teeth (31) and small teeth (32) has a contour notch (302) at the middle position of the outer side. The tip of each tooth of the lower curved tooth disc (4) is bent inward. The root of each tooth of the lower curved tooth disc (4) has a contour notch (402) at the outer side. The contour notch (202), contour notch (302) and contour notch (402) are all matched with the outer diameter of the straw.

2. A novel toothed plate conveying device for silage harvesting as described in claim 1, characterized in that: The upper gear plate (2) is composed of six upper gear plates (201) spliced ​​together and welded circumferentially to the upper part of the gear plate connecting frame (1). Each upper gear plate (201) has four teeth.

3. A novel toothed plate conveying device for silage harvesting platforms according to claim 1 or 2, characterized in that: The middle-layer toothed disc (3) is composed of six middle-layer toothed plates (301) spliced ​​together and welded circumferentially to the middle position of the toothed disc connecting frame (1). Each middle-layer toothed plate (301) is provided with four large teeth (31), four small teeth (32), and small tooth half-tooth one (321) and small tooth half-tooth two (322) located at both ends of the middle-layer toothed plate (301). The four large teeth (31) and four small teeth (32) are arranged alternately. The small tooth half-tooth one (321) and small tooth half-tooth two (322) of two adjacent middle-layer toothed plates (301) are spliced ​​together into a small tooth through dovetail grooves and dovetail blocks.

4. A novel toothed plate conveying device for silage harvesting platform according to claim 1 or 2, characterized in that: The lower curved tooth disc (4) is composed of four lower curved tooth plates (401) spliced ​​together and welded circumferentially to the lower end of the tooth disc connecting frame (1). Each lower curved tooth plate (401) has six teeth.

5. A novel toothed plate conveying device for silage harvesting platform according to claim 1 or 2, characterized in that: There is a gap between the upper large toothed disc (2), the middle dense toothed disc (3) and the lower curved toothed disc (4), and the gap between the upper large toothed disc (2) and the middle dense toothed disc (3) is smaller than the gap between the lower curved toothed disc (4) and the middle dense toothed disc (3).

6. A novel toothed plate conveying device for silage harvesting platform according to claim 1 or 2, characterized in that: The centers of the contour notches (302) on the large tooth (31) and the small tooth (32) are located on the same circumference.

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