Rotary pre-cut conveyor for a baler

Abstract

This utility model discloses a rotary pre-cutting conveyor for a baler, comprising a baler and a rotary pre-cutting conveyor installed between the baler's pickup and the pre-compression chamber. The pre-cutting conveyor structure consists of a left half-shaft and a right half-shaft fixed to both ends of a supporting cylindrical tube, with the supporting cylindrical tube coaxial with the left and right half-shafts. Scraper blades are fixed to the left and right half-shafts at both ends of the supporting cylindrical tube. On the cylindrical surface of the supporting cylindrical tube, from both ends to the center, are arranged symmetrically on the left and right sides, with opposite spiral directions: a left conveying spiral blade and a left moving cutter tooth, and a right conveying spiral blade and a right moving cutter tooth. This utility model has a reasonable structure, shortens the pickup, conveying, and feeding stroke of the baler, and ensures that within a short stroke, forage can be pre-cut and forcibly and evenly fed into the pre-compression chamber at any angle, improving harvesting efficiency and reducing the probability of feeding blockage.

Description

Technical Field

[0001] This utility model relates to agricultural and livestock machinery, specifically to baler cutting conveyors, and more particularly to a rotary pre-cutting conveyor for balers. Background Technology

[0002] Naturally growing hay can reach a height of 1.5-2.0 meters. Directly compressing and baling it can easily cause the hay to entangle the baler, damaging the mechanical structure and shortening the equipment's lifespan. Adding a pre-cutting function to a high-density, large-area hay baler effectively avoids this type of mechanical failure. The pre-cutting device not only effectively prevents hay from entanglement but also significantly reduces the compression load on the pre-compression and compression chambers, thereby reducing external power input and helping to increase the hay's compression density. After being picked up by the pickup, the hay needs to pass through a screw conveyor to the pre-cutting device, and then be fed into the pre-compression chamber via a feeding device. This pickup, conveying, and feeding process is lengthy, reducing feeding efficiency and increasing the probability of feeding blockages. Utility Model Content

[0003] The purpose of this utility model is to provide a rotary pre-cutting conveyor for balers. Its structure is reasonable, which shortens the picking, conveying and feeding stroke of the baler. Moreover, it can ensure that the forage can be pre-cut and forcibly and evenly fed into the pre-compression chamber at any angle within the short stroke. This not only improves harvesting efficiency, but also reduces the probability of feeding blockage failure.

[0004] The purpose of this utility model is achieved as follows: A rotary pre-cutting conveyor for a baler includes a baler, and a rotary pre-cutting conveyor is installed between the baler's pickup and the pre-compression chamber. The pre-cutting conveyor is structured such that a left half-shaft and a right half-shaft are fixedly connected to both ends of a supporting circular tube, and the supporting circular tube is coaxial with the left and right half-shafts. Scraper blades are fixedly connected to the left and right half-shafts at both ends of the supporting circular tube. On the cylindrical surface of the supporting circular tube, left and right symmetrical left conveying spiral blades and left moving cutter teeth and right conveying spiral blades and right moving cutter teeth are arranged sequentially from both ends of the supporting circular tube to the center of the supporting circular tube.

[0005] This utility model comprises a left half-shaft, a right half-shaft, a left conveying spiral blade, a supporting circular tube, a left moving cutter tooth, a right moving cutter tooth, a scraper blade, and a right conveying spiral blade. The left and right half-shafts are fixed to both ends of the supporting circular tube by welding and maintain coaxiality with the supporting circular tube. The left and right conveying spiral blades are symmetrically welded to the left and right sides of the circumferential surface of the supporting circular tube, respectively, and both are arranged coaxially with the supporting circular tube. Scrapers are welded and fixed to the ends of the half-shafts at both ends of the supporting circular tube. The structure of the left and right moving cutter teeth consists of three cutting blades welded and fixed to the circumferential surface of the supporting circular tube as a group. Multiple groups of moving cutter teeth are symmetrically distributed along the circumference of the supporting circular tube and are evenly arranged and fixed to the circumferential surface of the supporting circular tube in a reverse spiral pattern.

[0006] During operation, power is transmitted from the half-shaft to the left conveying screw, rotating the left and right moving cutter teeth and the right conveying screw, driving them to work together to pre-cut the hay conveyed by the pickup and forcefully and evenly feed it into the pre-compression chamber. At the same time, the scraping device can effectively remove weeds that may become entangled during the conveying process.

[0007] Beneficial effects: This invention features a dual function of spiral conveying and pre-cutting forced feeding. Before the forage enters the pre-compression chamber, it simultaneously completes the three processes of conveying, cutting, and forced feeding, shortening the pickup, conveying, and feeding operation process. It not only improves harvesting efficiency and reduces the probability of conveying and feeding failures, but also ensures that forage can be forcibly and uniformly fed into the pre-compression chamber at any angle within a short travel distance. It boasts advantages such as simplicity, maintenance-free operation, fast feeding speed, high efficiency, minimal crop loss, and applicability to various types of forage. Attached Figure Description

[0008] The present invention will now be further described with reference to the accompanying drawings. Figure 1 This is a schematic diagram of the axial side structure of this utility model. Figure 2 This is a schematic diagram of the main structure of this utility model. Figure 3 for Figure 2 A schematic diagram of the AA cross-sectional structure. Detailed Implementation

[0009] A rotary pre-cutting conveyor for a baler, such as Figure 1 , Figure 2 , Figure 3As shown, the device includes a baler, and a rotary pre-cutting conveyor is installed between the baler pickup and the pre-compression chamber. The pre-cutting conveyor has a structure in which a left half-shaft 2 and a right half-shaft 3 are fixedly connected to both ends of a support tube 1, and the support tube 1 is coaxial with the left half-shaft 2 and the right half-shaft 3. Scraper blades 4 are fixedly connected to the left half-shaft 2 and the right half-shaft 3 at both ends of the support tube 1. On the cylindrical surface of the support tube 1, left and right symmetrical left conveying spiral blades 5 and left moving blades 7 and right conveying spiral blades 6 and right moving blades 8 are arranged sequentially from both ends of the support tube 1 to the center of the support tube 1. The structure of the left-moving cutter tooth 7 and the right-moving cutter tooth 8 consists of cutting blades 9 arranged evenly and spaced apart on the cylindrical surface of the supporting cylindrical tube 1. Each cutting blade 9 has 3-4 teeth evenly distributed on its outer circumference. The teeth of the evenly distributed cutting blades 9 are arranged in a spiral pattern. Specifically, the teeth of the left-moving cutter tooth 7 are arranged in a left-hand spiral pattern, and the teeth of the right-moving cutter tooth 8 are arranged in a right-hand spiral pattern. Three adjacent cutting blades 9 are fixed together as a group, and three adjacent cutting blades 9 are fixed together by a spacer ring. Multiple groups of cutting blades make the left-moving cutter tooth 7 and the right-moving cutter tooth 8 arranged in a left-hand and right-hand symmetrical spiral pattern, and fixed to the supporting cylindrical tube 1.

Claims

1. A rotary pre-cut conveyor for a baler, comprising a baler, characterized in that A rotary pre-cutting conveyor is installed between the baler pickup and the pre-compression chamber. The pre-cutting conveyor is structured with a left half-shaft (2) and a right half-shaft (3) fixed to both ends of the support tube (1), and the support tube (1) is coaxial with the left half-shaft (2) and the right half-shaft (3). Scraper blades (4) are fixed to the left half-shaft (2) and the right half-shaft (3) at both ends of the support tube (1). On the cylindrical surface of the support tube (1), from both ends of the support tube (1) to the center of the support tube (1), there are left conveying spiral blades (5) and left moving blades (7) that are symmetrical on the left and right and have opposite spiral directions, and right conveying spiral blades (6) and right moving blades (8).

2. A rotary pre-cut conveyor for a baling machine according to claim 1, characterized in that: The structure of the left moving cutter tooth (7) and the right moving cutter tooth (8) is that the cutting blades (9) are arranged evenly and spaced apart on the cylindrical surface of the supporting round tube (1). Each cutting blade (9) has 3-4 cutting teeth evenly arranged on the outer circumference of the cutter head. The cutting teeth between the evenly arranged cutting blades (9) are arranged in a spiral. The cutting teeth between the evenly arranged cutting blades (9) of the left moving cutter tooth (7) are arranged in a left-hand spiral, and the cutting teeth between the evenly arranged cutting blades (9) of the right moving cutter tooth (8) are arranged in a right-hand spiral.

3. A rotary pre-cut conveyor for a baler as claimed in claim 2, characterized in that: The evenly distributed cutting blades (9) are fixed together in groups of three adjacent cutting blades (9). The three adjacent cutting blades (9) are fixed together by spacer rings. Multiple groups of cutting blades make the left moving blade teeth (7) and right moving blade teeth (8) arranged in a left-right symmetrical spiral pattern and fixed on the support cylinder (1).

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