A harvester all-terrain profiling device
Patent Information
- Application Number
- CN202522329776.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-03
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-11-03
AI Technical Summary
[0002]在农业机械化收割作业中，收割机的收割台与地表的贴合度直接决定收割效率与作物损失率，当前市面上的收割机普遍采用单一维度或固定结构的收割台连接方式，难以适配复杂多变的田间地形，还存在一些问题，例如：
本方案通过多级调节结构多维度地形适配，大幅降低作物损失率，实现横向、纵向与微幅三维调节，通过侧向调节液压杆的反向动作，可适配横向坡度地块，确保收割台左右切割高度一致，彻底解决传统装置一侧漏割、一侧切根的问题；通过倾斜调节液压杆与辅助液压杆的协同动作，能适配纵向坡度或高低起伏地块，保证切割刀组始终贴合地表；通过拉紧液压杆的微幅调节，可补偿地面微小凸起或凹陷，同时增强收割台刚性，避免高速收割时的抖动，切割平整度更高。无论是平原、丘陵、山地等不同地形，还是地块边缘、灌溉垄沟等特殊区域，均可通过多维度调节实现精准适配，无需频繁调整整机位置。
Smart Images
Figure CN224791212U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural machinery technology, specifically to an all-terrain contouring device for harvesters. Background Technology
[0002] In mechanized agricultural harvesting operations, the degree of contact between the harvester's cutting platform and the ground directly determines harvesting efficiency and crop loss rate. Currently, most harvesters on the market use a single-dimensional or fixed-structure cutting platform connection method, which is difficult to adapt to complex and varied field terrain and still has some problems, such as: Traditional harvesters' cutting platforms can only achieve height adjustment in one direction. When facing lateral slopes, they cannot adjust the horizontal turning, which easily leads to missed cutting on one side and root cutting on the other. When facing longitudinal slopes or undulating terrain, it is difficult to adjust the forward and backward tilt, causing the cutting blades to not always keep in contact with the ground. This results in crop missed cutting or excessive straw cutting residue, especially in hilly and mountainous areas where the harvesting loss rate is even higher.
[0003] Therefore, we propose an all-terrain contouring device for harvesters. Utility Model Content
[0004] The purpose of this invention is to provide an all-terrain contouring device for harvesters to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a harvester all-terrain contouring device, including a harvester, with a harvesting platform and contouring adjustment device provided on the left side of the harvester; The contour adjustment device is located between the harvester and the harvesting platform, and multiple sets of contour adjustment devices are set up and operate synchronously. The contour adjustment device includes a main mounting frame, a secondary mounting frame, and a mounting panel. One end of the main mounting frame is fixed to the harvester, and the other end of the main mounting frame is provided with the secondary mounting frame. A lateral adjustment shaft is provided between the main mounting frame and the secondary mounting frame, so that the secondary mounting frame can turn left and right at the end of the main mounting frame. The mounting panel is located at the end of the mounting subframe away from the main mounting frame. The end of the mounting panel away from the mounting subframe is fixed to the harvesting table. An tilt adjustment shaft is provided between the mounting panel and the mounting subframe, allowing the mounting panel to rotate up and down around the mounting subframe.
[0006] Preferably, lateral adjustment hydraulic rods are symmetrically arranged on the left and right sides of the main frame, and the other end of the lateral adjustment hydraulic rods is fixed to both sides of the sub-frame. The lateral adjustment hydraulic rods on both sides achieve left and right angle adjustment of the sub-frame through opposite working states.
[0007] Preferably, a tilt adjustment hydraulic rod and a tilt adjustment auxiliary hydraulic rod are installed on the mounting sub-frame near the mounting panel. The other end of the tilt adjustment hydraulic rod and the tilt adjustment auxiliary hydraulic rod are set on the mounting panel. The tilt adjustment hydraulic rod and the tilt adjustment auxiliary hydraulic rod achieve the vertical tilt angle adjustment of the mounting panel through opposite working states.
[0008] Preferably, a tensioning hydraulic rod is provided at the top of the mounting panel, and a small-amplitude adjustment shaft is also provided between the mounting panel and the tensioning hydraulic rod. The mounting panel can be adjusted slightly in the up and down direction by the tensioning hydraulic rod to enhance the adjustability of the mounting panel.
[0009] Preferably, each steering position of the contour adjustment device is equipped with an angle sensor; each set of hydraulic rods is connected in series with an overload relief valve, which will be activated when the adjustment resistance exceeds a set threshold; each set of contour adjustment devices is connected to the harvester's central control system via a CAN bus.
[0010] Compared with the prior art, the beneficial effects of this utility model are: This solution significantly reduces crop loss rates through a multi-level adjustable structure and multi-dimensional terrain adaptation. It achieves lateral, longitudinal, and micro-adjustment in three dimensions. The reverse action of the lateral adjustment hydraulic rods adapts to lateral slopes, ensuring consistent cutting height on both sides of the harvester and completely resolving the issues of missed cuts or root damage on one side found in traditional devices. The coordinated action of the tilt adjustment hydraulic rods and auxiliary hydraulic rods adapts to longitudinal slopes or undulating terrain, ensuring the cutting blades remain in contact with the ground. Micro-adjustments by tightening the hydraulic rods compensate for minor ground bumps or depressions, while simultaneously enhancing the rigidity of the harvester and preventing vibrations during high-speed harvesting, resulting in a smoother cut. Whether in plains, hills, mountains, or other terrains, or in special areas such as plot edges or irrigation furrows, precise adaptation can be achieved through multi-dimensional adjustments, eliminating the need for frequent adjustments to the overall machine position. Attached Figure Description
[0011] Figure 1 This is the front view of the new model; Figure 2 This is a schematic diagram of the new type of harvesting platform; Figure 3 This is a schematic diagram of the novel contour-adjusting device.
[0012] In the picture: 1. Harvester, 2. Harvesting platform, 3. Contouring adjustment device; 3-1 Install the main frame, 3-2 Install the sub-frame, 3-3 Install the panel, 3-4 Adjust the lateral hydraulic rod, 3-5 Adjust the tilt hydraulic rod, 3-6 Adjust the tilt auxiliary hydraulic rod, 3-7 Tension hydraulic rod. Detailed Implementation
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0014] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example 1
[0015] Please see Figure 1-3 The present invention provides the following technical solution: A harvester all-terrain contouring device includes a harvester 1, a harvesting platform 2 and a contouring adjustment device 3 arranged on the left side of the harvester 1; the contouring adjustment device 3 is located between the harvester 1 and the harvesting platform 2, and multiple sets of the contouring adjustment device 3 are arranged and operate synchronously to adjust the position of the harvesting platform 2 to adapt to various harvesting terrains. The contour adjustment device 3 includes a main mounting frame 3-1, a secondary mounting frame 3-2, and a mounting panel 3-3. One end of the main mounting frame 3-1 is fixed to the harvester 1, and the other end of the main mounting frame 3-1 is provided with the secondary mounting frame 3-2. A lateral adjustment shaft is provided between the main mounting frame 3-1 and the secondary mounting frame 3-2, so that the secondary mounting frame 3-2 can turn left and right at the end of the main mounting frame 3-1. The mounting sub-frame 3-2 is provided with a mounting panel 3-3 at the end away from the main mounting frame 3-1. The end of the mounting panel 3-3 away from the mounting sub-frame 3-2 is fixed on the harvesting table 2. An tilt adjustment pivot is provided between the mounting panel 3-3 and the mounting sub-frame 3-2, so that the mounting panel 3-3 can rotate up and down around the mounting sub-frame 3-2. Lateral adjustment hydraulic rods 3-4 are symmetrically arranged on the left and right sides of the main frame 3-1. The other end of the lateral adjustment hydraulic rods 3-4 is fixed to both sides of the sub-frame 3-2. The lateral adjustment hydraulic rods 3-4 on both sides achieve left and right angle adjustment of the sub-frame 3-2 through opposite working states. The mounting sub-frame 3-2 is equipped with a tilt adjustment hydraulic rod 3-5 and a tilt adjustment auxiliary hydraulic rod 3-6 near the mounting panel 3-3. The other ends of the tilt adjustment hydraulic rod 3-5 and the tilt adjustment auxiliary hydraulic rod 3-6 are set on the mounting panel 3-3. The tilt adjustment hydraulic rod 3-5 and the tilt adjustment auxiliary hydraulic rod 3-6 achieve the vertical tilt angle adjustment of the mounting panel 3-3 through opposite working states. The top of the mounting panel 3-3 is provided with a tensioning hydraulic rod 3-7, and a small-amplitude adjustment shaft is also provided between the mounting panel 3-3 and the tensioning hydraulic rod 3-7. The mounting panel 3-3 can be adjusted slightly in the up and down direction by the tensioning hydraulic rod 3-7 to enhance the adjustability of the mounting panel 3-3. Through the above-mentioned multi-level adjustment, the harvesting platform 2 can be adjusted in multiple dimensions to adapt to various harvesting terrains; an angle sensor is set at each turning position of the contour adjustment device 3 to collect adjustment angle data in real time and feed it back to the central control system of the harvester 1 to realize closed-loop control of the adjustment process. Each hydraulic rod is equipped with an overload relief valve in series. When the adjustment resistance exceeds the set threshold, the relief valve automatically releases pressure to prevent the components from deforming or being damaged due to overload. At the same time, the control system issues an audible and visual alarm to remind the operator to check the terrain or equipment in time. Each group of contour adjustment devices 3 is connected to the central control system of harvester 1 via CAN bus. The operator can manually set the adjustment angle through the touch screen or joystick in the cab to adapt to special terrain or equipment debugging scenarios. Lateral adjustment, through the reverse action of the lateral adjustment hydraulic rods 3-4, enables the harvester platform 2 to turn horizontally left and right, adapting to the transverse slope of the plot, ensuring that the cutting height on the left and right sides of the harvester platform 2 is consistent, and avoiding missed cutting on one side and root cutting on the other side. The tilt adjustment, through the coordinated action of the tilt adjustment hydraulic rod 3-5 and the auxiliary hydraulic rod 3-6, enables the harvester platform 2 to tilt forward and backward, adapting to longitudinal slopes or undulating terrain, ensuring that the cutting blade assembly always keeps in contact with the ground surface, and reducing crop loss rate. The micro-tension adjustment, through the small-amplitude movement of the hydraulic rods 3-7, compensates for minor bumps or depressions on the ground, while enhancing the rigidity of the harvesting platform 2, avoiding vibration during high-speed harvesting, and improving the flatness of the cut.
[0016] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
[0017] Working principle: This solution achieves precise adjustment of the harvesting platform for different terrains through the coordinated action of different hydraulic rods, covering scenarios such as lateral slopes, longitudinal undulations, and slight unevenness of the ground.
[0018] The main frame 3-1 is equipped with symmetrical lateral adjustment hydraulic rods 3-4 on both sides. One end of each set of hydraulic rods is connected to the main frame, and the other end is connected to the sub-frame 3-2. Adjustment is achieved by the reverse movement of the two sets of hydraulic rods. For example, when the left side of the plot is higher than the right side, the left hydraulic rod retracts and the right hydraulic rod extends, causing the sub-frame 3-2 to turn to the left around the lateral adjustment axis, thereby causing the harvesting platform 2 to turn horizontally left and right simultaneously. This ensures that the cutting height on both sides of the harvesting platform is consistent, avoiding the problem of one side being missed or cut too high, or the other side being cut too low due to the lateral slope. The tilt adjustment hydraulic rods 3-5 and 3-6 on the sub-frame 3-2 are connected at one end to the sub-frame and at the other end to the mounting panel 3-3. The two sets of hydraulic rods control the forward and backward tilt by working in opposite directions. For example, when the front end of the plot is higher than the rear end, the front hydraulic rod extends and the rear auxiliary hydraulic rod retracts, causing the mounting panel 3-3 to tilt forward around the tilt adjustment axis, raising the front end of the harvesting platform 2 and lowering the rear end. This ensures that the cutting blades at the bottom of the harvesting platform are always in contact with the ground, avoiding missed cuts caused by longitudinal undulations, such as the blades being too high off the ground, blade collisions, or blades touching the ground, thus reducing crop loss. The tensioning hydraulic rod 3-7 at the top of the mounting panel 3-3 has a small-amplitude adjustment pivot between the rod and the panel. By slightly extending and retracting the hydraulic rod, if there is a slight bump in the ground, the hydraulic rod slightly contracts, causing the panel to lift slightly; if there is a slight depression in the ground, the hydraulic rod slightly extends, causing the panel to press slightly downward. Simultaneously, the tension of the hydraulic rod enhances the rigidity of the mounting panel and the harvesting platform, compensating for millimeter-level unevenness in the ground, preventing vibrations in the harvesting platform due to insufficient rigidity during high-speed harvesting, and improving cutting flatness, such as reducing uneven crop cut surfaces.
Claims
1. A harvester all-terrain contouring device, comprising a harvester (1), wherein a harvesting platform (2) and a contouring adjustment device (3) are provided on the left side of the harvester (1), characterized in that: The contour adjustment device (3) is located between the harvester (1) and the harvesting table (2), and multiple sets of contour adjustment devices (3) are provided and operate synchronously. The contour adjustment device (3) includes a main mounting frame (3-1), a secondary mounting frame (3-2) and a mounting panel (3-3). One end of the main mounting frame (3-1) is fixed on the harvester (1), and the other end of the main mounting frame (3-1) is provided with a secondary mounting frame (3-2). A lateral adjustment shaft is provided between the main mounting frame (3-1) and the secondary mounting frame (3-2) so that the secondary mounting frame (3-2) can turn left and right at the end of the main mounting frame (3-1). The mounting sub-frame (3-2) is provided with a mounting panel (3-3) at the end away from the mounting main frame (3-1). The end of the mounting panel (3-3) away from the mounting sub-frame (3-2) is fixed on the harvesting table (2). An tilt adjustment shaft is provided between the mounting panel (3-3) and the mounting sub-frame (3-2) so that the mounting panel (3-3) can rotate up and down around the mounting sub-frame (3-2).
2. The all-terrain contour-following device for a harvester according to claim 1, characterized in that: Lateral adjustment hydraulic rods (3-4) are symmetrically arranged on the left and right sides of the main frame (3-1). The other end of the lateral adjustment hydraulic rods (3-4) is fixed on both sides of the sub-frame (3-2). The lateral adjustment hydraulic rods (3-4) on both sides achieve left and right angle adjustment of the sub-frame (3-2) through opposite working states.
3. The all-terrain contour-following device for a harvester according to claim 1, characterized in that: The mounting bracket (3-2) is equipped with a tilt adjustment hydraulic rod (3-5) and a tilt adjustment auxiliary hydraulic rod (3-6) near the mounting panel (3-3). The other ends of the tilt adjustment hydraulic rod (3-5) and the tilt adjustment auxiliary hydraulic rod (3-6) are set on the mounting panel (3-3). The tilt adjustment hydraulic rod (3-5) and the tilt adjustment auxiliary hydraulic rod (3-6) achieve the vertical tilt angle adjustment of the mounting panel (3-3) through opposite working states.
4. The all-terrain contour-following device for a harvester according to claim 1, characterized in that: The top of the mounting panel (3-3) is provided with a tensioning hydraulic rod (3-7), and a small-amplitude adjustment shaft is also provided between the mounting panel (3-3) and the tensioning hydraulic rod (3-7). The mounting panel (3-3) can be adjusted slightly in the up and down direction by the tensioning hydraulic rod (3-7) to enhance the adjustability of the mounting panel (3-3).
5. A harvester all-terrain contour-following device according to any one of claims 2, 3, and 4, characterized in that: An angle sensor is installed at each turning position of the contour adjustment device (3); an overload relief valve is installed in series in each hydraulic rod group, and when the adjustment resistance exceeds the set threshold; each group of contour adjustment devices (3) is connected to the central control system of the harvester (1) via CAN bus.