Double-spiral-roller conveying leaf removing mechanism
By winding a spiral strip around the outer wall of the drum of the cabbage harvester and adjusting the drum support, the problem of cabbage dead leaves not being able to fall off automatically was solved, achieving automatic removal of dead leaves and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU YINGTIAN AGRI MASCH MFG CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-05-08
AI Technical Summary
In existing cabbage harvesters, withered leaves on the cabbage cannot be automatically removed during the conveying process and need to be removed manually, which is laborious and time-consuming.
Long strips are spirally wound on the outer wall of the drum. The cabbage is transported using the auger principle, while dead leaves are removed by the spiral strips on the outer wall of the drum. The drum spacing can be adjusted by the adjustable drum support to accommodate different cabbage sizes.
It enables the automatic removal of withered leaves from cabbage during transportation, reducing manual operation and improving work efficiency.
Smart Images

Figure CN224205752U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a double helical roller conveying leaf removal mechanism. Background Technology
[0002] Existing cabbage harvesters typically have a double-spiral roller conveyor mechanism in the middle. Each double-spiral roller conveyor mechanism includes two parallel, spaced-apart rollers and four roller supports. The rollers are placed longitudinally and their ends are rolled and supported on the two roller supports respectively. During operation, the cabbage falls onto the two parallel, spaced-apart rollers and is conveyed backward by the auger principle. The main drawback of this structure is that withered leaves on the cabbage cannot be removed during this conveying process, requiring manual removal later, which is laborious and time-consuming. Utility Model Content
[0003] This invention addresses the shortcomings of existing technologies by proposing a double-spiral roller conveying leaf removal mechanism that can essentially remove withered leaves from cabbage during the conveying process, saving time and effort.
[0004] The present invention achieves its technical objectives through the following technical solutions.
[0005] The double helical roller conveyor leaf removal mechanism is located in the middle of the cabbage harvester. Each set of double helical roller conveyor leaf removal mechanism includes two parallel and spaced-apart rollers and four roller supports. The rollers are placed horizontally in the longitudinal direction and are supported on the two roller supports respectively by rolling connection at both ends. The improvement is that a long strip is spirally wound on the outer wall of the roller and the long strip is fixedly connected to the outer wall of the roller.
[0006] Furthermore, two V-shaped guard plates are provided above the two parallel and spaced rollers, and the two ends of the guard plates are fixedly connected to the two roller supports at the corresponding ends of the rollers.
[0007] Furthermore, the roller support can be adjusted laterally.
[0008] Furthermore, the strip is a rigid plastic tube; the strip (43) is embedded in the spiral groove on the outer wall of the roller (41).
[0009] Furthermore, the cabbage harvester is equipped with two sets of parallel double-helix roller conveying leaf removal mechanisms arranged laterally at intervals.
[0010] Compared with the prior art, this utility model has the following advantages:
[0011] 1. A spirally wound strip is fixedly connected to the outer wall of the drum. When in use, the cabbage falls onto two parallel and spaced-apart drums. Relying on the auger principle, the cabbage is rolled backward and transported. At the same time, the drum rotates, and the spirally wound strip on the outer wall of the drum removes the withered leaves from the cabbage. In this way, the withered leaves on the cabbage can be basically removed during the transportation process, which saves time and effort.
[0012] 2. The position of the roller support can be adjusted laterally. The position of the roller support can be adjusted as needed to adjust the distance between two parallel and opposite rollers.
[0013] 3. The long strip is made of rigid plastic and is effective at removing dead leaves. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention viewed from the front to the back.
[0015] Figure 2 for Figure 1 Cross-sectional view. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0017] Appendix Figures 1-2 The double helical roller conveyor leaf removal mechanism shown is located in the middle of the cabbage harvester. In this embodiment, the cabbage harvester is equipped with two sets of double helical roller conveyor leaf removal mechanisms arranged horizontally at intervals.
[0018] Each set of double helical roller conveying leaf removal mechanism includes two parallel and spaced-apart rollers 41 and four roller supports 42; the rollers 41 are placed horizontally in the longitudinal direction and are supported on the two roller supports 42 respectively by rolling connection at both ends; the roller supports 42 can be adjusted laterally.
[0019] A long strip 43 is spirally wound on the outer wall of the roller 41, and the long strip 43 is fixedly connected to the outer wall of the roller 41. In this embodiment, the long strip 43 is a rigid plastic tube. In other embodiments, the long strip 43 is embedded in a spiral groove on the outer wall of the roller 41.
[0020] Two V-shaped guard plates 44 are provided above the two parallel and spaced rollers 41. The two ends of the guard plates 44 are fixedly connected to the two roller supports 42 at the two ends of the corresponding rollers 41.
[0021] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0022] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A double helical roller conveying leaf removal mechanism, disposed in the middle of a cabbage harvester, each set of double helical roller conveying leaf removal mechanisms comprising two parallel and spaced-apart rollers (41) and four roller supports (42); the rollers (41) are longitudinally flat and their two ends are rolled and supported on the two roller supports (42) respectively, characterized in that: A long strip (43) is spirally wound on the outer wall of the roller (41), and the long strip (43) is fixedly connected to the outer wall of the roller (41).
2. The double helical roller conveying leaf removal mechanism according to claim 1, characterized in that: Above the two parallel, spaced rollers (41) are two V-shaped guard plates (44), and the two ends of the guard plates (44) are fixedly connected to the two roller supports (42) at the two ends of the corresponding rollers (41).
3. The double helical roller conveying leaf removal mechanism according to claim 2, characterized in that: The roller support (42) can be adjusted laterally.
4. The double helical roller conveying leaf removal mechanism according to claim 1, characterized in that: The strip (43) is a rigid plastic tube; the strip (43) is embedded in the spiral groove on the outer wall of the roller (41).
5. The double helical roller conveying leaf removal mechanism according to any one of claims 1 to 4, characterized in that: The cabbage harvester is equipped with two sets of parallel double-helix roller conveying and leaf removal mechanisms arranged laterally.