Efficient screening and raising rotary screen mechanism of crop straw bundling machine
By introducing an upward rotary screen mechanism into the baler, the problem of low purity of crop straw in the existing technology has been solved, achieving more efficient dust removal and impurity removal, and improving the purity of the material and the tolerance of livestock.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAZHOU ZHIKE QIDA AUTOMATION EQUIP MFG CO LTD
- Filing Date
- 2024-08-02
- Publication Date
- 2026-05-12
AI Technical Summary
The crop straw produced by existing balers has low purity, especially containing a lot of dust, and the existing screen plate design is not effective.
An upward rotary screen mechanism is set between the crushing and picking mechanism and the auger conveying mechanism. It includes an upward conveying channel and a rotary screen mechanism. The material is removed by rotating and screening and re-conveying, thus adding a dust removal and impurity removal process.
It improves the purity and storage resistance of crop straw, enhances the tolerance of livestock, and further removes moisture from the material.
Smart Images

Figure CN224218948U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a crop straw baler, and more particularly to a baler that can pulverize crop straw and lift it upwards to efficiently remove impurities and dust, thereby improving the purity of crop straw. Background Technology
[0002] The existing baling machine mainly includes a traction drive mechanism, as well as a front-end shredding and picking mechanism and a rear-end auger conveying mechanism and baling mechanism driven by the traction drive mechanism.
[0003] The shredding and picking mechanism mainly includes its box body and the picking and shredding mechanism located inside the box body, which picks up crop straw located on the ground into the box body and shreds it, thus preparing for the subsequent auger conveying mechanism.
[0004] The auger conveyor mechanism mainly includes a box and rotating blades on both sides of the box, which push the crop straw shredded by the shredder into the conveying channel in the middle of the box, thereby providing crop straw material to the baling mechanism.
[0005] Livestock fed with crop straw baled using existing balers have low tolerance levels. Careful research revealed that the baled crop straw contains a significant amount of dust. This phenomenon is primarily due to the design of the shredding and auger conveying mechanisms in existing balers. Current technologies generally employ traditional methods to address dust and soil removal from crop straw, using a sieve plate at the bottom of the baler housing with numerous holes to allow large particles of soil to be sifted out or settle outside the housing by the rotating shaft. However, existing balers neglect the fact that a considerable amount of dust remains, and this simple filtration method is insufficient. Utility Model Content
[0006] In order to solve the technical problem of low purity of crop straw after baling by existing balers, this utility model provides a high-efficiency screening upward rotary screen mechanism for crop straw balers, which can improve the purity of crop straw after baling.
[0007] The technical solution adopted by this utility model to solve the technical problem is:
[0008] A high-efficiency screening mechanism for crop straw balers, comprising a crushing and picking mechanism and an auger conveyor mechanism, wherein the crushing and picking mechanism and the auger conveyor mechanism are respectively housed in independent housings and are not connected to each other; the lifting rotary screen mechanism is provided between the crushing and picking mechanism and the auger conveyor mechanism, which can rotate and screen the crushed material in the crushing and picking mechanism housing and then convey it to the auger conveyor mechanism housing.
[0009] By implementing the above technical solution, the material after being picked up and crushed is changed from being directly conveyed to the auger conveyor to being fed back into the auger conveyor through an upward rotary screen mechanism. This adds a dust removal, impurity removal, kneading and fluffing process, which not only improves the purity of the material, but also further removes the moisture in the material, thereby improving the material's storage resistance and the tolerance of livestock.
[0010] As a preferred structure of the upward rotary screen mechanism, the upward rotary screen mechanism includes an upward conveying channel located on both sides of the crushing and picking mechanism housing and connected thereto, and a rotary screen mechanism located on both sides of the auger conveyor housing and connected thereto; the discharge port of the upward conveying channel is located above the rotary screen mechanism. The advantage of this design is that it can make full use of the power output on both sides of the crushing and picking mechanism and the auger conveyor mechanism, respectively providing power to their corresponding upward conveying and rotary screen mechanisms, while also reducing the size of the mechanical equipment and allowing direct input and output of materials into and out of the crushing and picking mechanism housing and the auger conveyor housing.
[0011] As a preferred embodiment of the upward conveying channel structure, a material conveying mechanism is installed inside the upward conveying channel. More specifically, the material conveying mechanism is a toothed chain, a toothed belt, or a gear.
[0012] As a preferred structure of the rotary screen mechanism, the rotary screen mechanism includes supports fixed to both sides of the auger conveyor housing, and a rotary screen barrel located within the supports and capable of rotatably screening materials; the upper port of the rotary screen barrel is located below the discharge port, and the lower port of the rotary screen barrel is connected to the auger conveyor housing. More specifically, the diameter of the upper port of the rotary screen barrel is larger than the diameter of the lower port, forming a cone shape from top to bottom. Alternatively, the bottom end of the rotary screen barrel is equipped with a gear plate that meshes with a gearbox on one side of the auger conveyor mechanism for transmission.
[0013] Furthermore, the power sources for the crushing and picking mechanism and the auger conveying mechanism are respectively derived from the traction drive mechanism. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the rotary screen mechanism;
[0016] Figure 3 yes Figure 2 A-direction structural diagram;
[0017] Figure 4 yes Figure 2 Schematic diagram of structure in direction B.
[0018] In the diagram: 1. Crushing and picking mechanism; 2. Screw conveyor mechanism; 3. Upward rotary screen mechanism; 4. Upward conveying channel; 5. Rotary screen mechanism; 6. Support frame; 7. Rotary screen barrel; 8. Gear disc. Detailed Implementation
[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0020] like Figures 1 to 4 The illustrated high-efficiency screening and upward rotary screen mechanism for crop straw balers includes a crushing and picking mechanism 1 and an auger conveyor mechanism 2. In existing technologies, these two mechanisms are powered by a traction drive mechanism, but the power transmission proceeds sequentially from the traction drive mechanism to the crushing and picking mechanism 1 and then to the auger conveyor mechanism 2, forming a progressive transmission relationship. In this invention, the crushing and picking mechanism 1 and the auger conveyor mechanism 2 are independently connected to the traction drive mechanism. Furthermore, the crushing and picking mechanism 1 and the auger conveyor mechanism 2 are each housed in an independent enclosure and are not interconnected. An upward rotary screen mechanism 3 is located between the crushing and picking mechanism 1 and the auger conveyor mechanism 2. This upward rotary screen mechanism 3 can rotate and screen the crushed material inside the crushing and picking mechanism 1 and then convey it to the auger conveyor mechanism 2.
[0021] like Figures 2 to 4 As shown, the upward rotary screen mechanism 3 can be an independent mechanism, such as a mechanism added between the crushing and picking mechanism 1 and the auger conveying mechanism 2. This mechanism does not rely on the existing equipment structure of the baler, but is an independent device. However, this utility model adopts the second solution, which is to improve the structure based on the existing baler structure. The specific structural design is as follows:
[0022] like Figure 1 As shown, the upward rotary screen mechanism 3 includes an upward conveying channel 4 located on both sides of the housing of the crushing and picking mechanism 1 and connected thereto, and a rotary screen mechanism 5 located on both sides of the housing of the auger conveyor mechanism 2 and connected thereto; the discharge port of the upward conveying channel 4 is located above the rotary screen mechanism 5. The advantage of this design is that it can fully utilize the power output from both sides of the crushing and picking mechanism 1 and the auger conveyor mechanism 2, respectively providing power to their corresponding upward conveying and rotary screen mechanisms 5, while also reducing the size of the mechanical equipment. It allows for direct input and output of materials into and out of the housings of the crushing and picking mechanism 1 and the auger conveyor mechanism 2. As a preferred structure of the upward conveying channel 4, a material conveying mechanism is installed inside the upward conveying channel 4. More specifically, the material conveying mechanism is a toothed chain, a toothed belt, or a gear. Figures 2 to 4As shown, in a preferred configuration of the rotary screen mechanism 5, the rotary screen mechanism 5 includes supports 6 fixed to both sides of the auger conveyor mechanism 2 housing, and a rotary screen barrel 7 located within the supports 6 and capable of rotatably screening materials; the upper port of the rotary screen barrel 7 is located below the discharge port, and the lower port of the rotary screen barrel 7 is connected to the auger conveyor mechanism 2 housing. More specifically, the diameter of the upper port of the rotary screen barrel 7 is larger than the diameter of the lower port, forming a cone shape from top to bottom. Alternatively, the bottom end of the rotary screen barrel 7 is provided with a gear disc 8, which meshes with a gearbox on one side of the auger conveyor mechanism 2 for transmission.
[0023] This invention changes the process of picking up and crushing materials from directly conveying them to the auger conveyor mechanism 2 to feeding them back into the auger conveyor mechanism 2 through the upward rotary screen mechanism 3. This adds a dust removal, impurity removal, kneading and fluffing step, which not only improves the purity of the materials but also further removes the moisture in the materials, thereby improving the storage resistance of the materials and the tolerance of livestock.
Claims
1. A high-efficiency screening and upward rotary screen mechanism for a crop straw baler, comprising a crushing and picking mechanism and an auger conveying mechanism; characterized in that: The crushing and picking mechanism and the auger conveying mechanism are respectively set in independent boxes and are not connected to each other; an upward rotary screen mechanism is set between the crushing and picking mechanism and the auger conveying mechanism, which can rotate and screen the crushed material in the crushing and picking mechanism box and then convey it to the auger conveying mechanism box. The upward rotary screen mechanism includes an upward conveying channel located on both sides of the crushing and picking mechanism housing and connected to it, and a rotary screen mechanism located on both sides of the auger conveying mechanism housing and connected to it; the discharge port of the upward conveying channel is located above the rotary screen mechanism. The rotary screen mechanism includes supports fixed to both sides of the auger conveyor mechanism housing, and a rotary screen barrel located inside the supports and capable of rotating and screening materials; the upper port of the rotary screen barrel is located below the discharge port, and the lower port of the rotary screen barrel is connected to the auger conveyor mechanism housing.
2. The high-efficiency screening upward rotary screen mechanism for a crop straw baler as described in claim 1, characterized in that: The upward conveying channel is equipped with a material conveying mechanism.
3. The high-efficiency screening and upward rotary screen mechanism for a crop straw baler as described in claim 2, characterized in that: The material conveying mechanism is a toothed chain, a toothed belt, or a gear.
4. The high-efficiency screening and upward rotary screen mechanism for a crop straw baler as described in claim 1, characterized in that: The diameter of the upper port of the rotary screen barrel is larger than that of the lower port, and it is conical from top to bottom.
5. The high-efficiency screening and upward rotary screen mechanism for a crop straw baler as described in claim 1, characterized in that: The bottom of the rotary screen barrel is equipped with a toothed disc, which meshes with the gearbox on one side of the auger conveyor mechanism for transmission.
6. The high-efficiency screening upward rotary screen mechanism for a crop straw baler as described in claim 1, characterized in that: The crushing and picking mechanism and the auger conveying mechanism are driven by the traction drive mechanism respectively.