Novel hydraulic buffering depth limiting wheel
By designing a hydraulic buffer cylinder and a movable top seat, the problems of poor buffering effect and insufficient fixing capacity when the depth limiting wheel is overturned are solved, achieving better buffering effect and automatic fixing after overturning, and supporting real-time tillage depth adjustment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-03-06
AI Technical Summary
The current limited-depth wheel relies on its own weight for poor buffering effect when it is overturned, and its fixing ability is insufficient after overturning, which makes the connecting parts easy to be damaged and the tillage depth adjustment is not real-time.
A hydraulic buffer mechanism is adopted, which provides a buffering effect during the flipping process through the buffer cylinder, and automatically fixes the parts after flipping through the movable top seat, thereby reducing hard contact between parts.
It achieves better cushioning and automatic fixation after flipping, reduces the damage rate of parts, and supports real-time tillage depth adjustment.
Smart Images

Figure CN223968227U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of agricultural machinery, specifically to a novel hydraulic buffer depth limiting wheel. Background Technology
[0002] A plow is a tillage tool whose main function is to turn and break up soil. The depth control wheel on the plow controls the tillage depth. Raising or lowering the depth control wheel changes the vertical distance from the lower edge of the wheel to the plow's support surface, thus altering the tillage depth. Existing depth control wheels can rotate, but when they rotate with the plow, they rely on their own weight to rotate backward, impacting the connecting components and easily causing damage. Furthermore, the tillage depth adjustment of existing depth control wheels mostly relies on pins for fixed adjustment, which cannot be adjusted in real time, thus having certain limitations.
[0003] A patent publication number (CN220693645U) was found, entitled "A Buffer Depth-Limiting Wheel for a Reversible Plow," which specifically discloses a buffer depth-limiting wheel for a reversible plow, comprising: a ground wheel connecting seat, a mounting assembly, a buffer assembly, a reversing assembly, a lifting adjustment assembly, and a ground wheel; the mounting assembly includes a mounting shell and a rotating shaft, the mounting shell being disposed on one side of the connecting seat, at least part of the mounting shell passing through the ground wheel connecting seat, and the rotating shaft being embedded in the mounting shell and rotatably connected to the mounting shell; the buffer assembly includes an eccentric wheel, an elastic cylindrical pin, a fixing plate, and a cylinder; the eccentric wheel is sleeved on the outside of the rotating shaft, one end of the elastic cylindrical pin passing through the eccentric wheel and the rotating shaft in sequence, the fixing plate being disposed on the other side of the ground wheel connecting seat, the cylinder being rotatably connected to the fixing plate, and the telescopic end of the cylinder being rotatably connected to the eccentric wheel; the reversing assembly is sleeved on the outside of the rotating shaft; the lifting adjustment assembly is disposed on one side of the reversing assembly; and the ground wheel is disposed at the bottom of the lifting adjustment assembly. When installing the cylinder, rotate the eccentric wheel around the shaft and adjust it to a suitable angle. Then, use a flexible cylindrical pin to fix the position of the eccentric wheel and the shaft. Next, install the cylinder on the eccentric wheel and the fixed plate. This makes it easy for the operator to adjust the cylinder to a suitable angle, which helps the cylinder to buffer the force of its own weight when the ground wheel flips, reducing the impact force generated when the ground wheel flips. During the adjustment process after installation, the operator can pull out the flexible cylindrical pin and adjust the rotation angle of the eccentric wheel to quickly adjust the angle position of the cylinder. After adjustment, the flexible cylindrical pin is inserted back in, making it easy for the operator to operate.
[0004] Analysis of the above-mentioned publicly available materials shows that the depth-limiting wheel can be buffered. However, relying on the cylinder to buffer the force of its own weight when the ground wheel is turned over, and reducing the impact force generated when the ground wheel is turned over, the cylinder's buffering response during the turning is poor. In addition, the plow's ability to be fixed after turning over is not good. Utility Model Content
[0005] In view of this, the present invention provides a novel hydraulic buffer depth limiting wheel, which not only achieves the buffering of the depth limiting wheel, but also has a good buffering effect and can be automatically fixed after flipping.
[0006] To solve the above-mentioned technical problems, this utility model provides a novel hydraulic buffer depth-limiting wheel, including a depth-limiting wheel clamping plate, a fixed base assembly connected to the depth-limiting wheel clamping plate, a depth-limiting bracket connected to the fixed base assembly, a tire assembly connected to the depth-limiting bracket, and further comprising...
[0007] A buffer mechanism, comprising a positioning support plate connected to a fixed base assembly, wherein the positioning support plate is connected to a buffer cylinder, and the telescopic rod of the buffer cylinder is connected to a depth limiting bracket.
[0008] A fixing mechanism, the fixing mechanism including a movable top seat connected to a positioning support plate.
[0009] Furthermore, the positioning support plate is provided with a fixing plate, the fixing plate is provided with a hole, and the buffer cylinder passes through the hole, and the end of the cylinder body of the buffer cylinder is hinged to the upper end of the positioning support plate.
[0010] Furthermore, the positioning support plate is provided with an adjustment hole, the adjustment hole is connected to a clamping plate, the clamping plate is connected to a limit fixing shaft, and the limit fixing shaft is connected to a depth limiting bracket.
[0011] Furthermore, the movable top seat is hinged to the upper end of the positioning support plate, and the lower end face of the movable top seat contacts the upper end face of the fixed plate. When the plow is turned over, the movable top seat disengages from the fixed plate.
[0012] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:
[0013] 1. It can achieve the buffering of the depth limiting wheel. By setting up a buffer cylinder, it plays a buffering role during the turning of the plow.
[0014] 2. It has a good buffering effect and can be automatically fixed after flipping. The buffer cylinder reduces hard contact between parts, and the positioning support plate can be fixed by gravity by setting a movable top seat. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 for Figure 1 A structural diagram from another perspective;
[0017] In the diagram: 1. Depth-limiting wheel clamp; 2. Movable top seat; 3. Buffer cylinder; 4. Fixed plate; 5. Depth-limiting bracket; 6. Tire assembly; 7. Limiting and fixing shaft; 8. Clamping plate; 9. Positioning support plate; 10. Fixed seat assembly; 11. Adjustment hole. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-2 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.
[0019] like Figure 1-2 As shown: Example
[0020] A novel hydraulic buffer depth-limiting wheel includes a depth-limiting wheel clamping plate 1, the depth-limiting wheel clamping plate 1 being connected to a fixed base assembly 10, the fixed base assembly 10 being connected to a depth-limiting bracket 5, the depth-limiting bracket 5 being connected to a tire assembly 6, and a buffer mechanism. The buffer mechanism includes a positioning support plate 9 connected to the fixed base assembly 10, the positioning support plate 9 being connected to a buffer cylinder 3, and the telescopic rod of the buffer cylinder 3 being connected to the depth-limiting bracket 5. A fixing mechanism includes a movable top seat 2 connected to the positioning support plate 9.
[0021] In this embodiment, the depth-limiting wheel clamp 1 is mounted on the beam and connected to a fixed base assembly 10. A depth-limiting bracket 5 is mounted on the fixed base assembly 10 and connected to the tire assembly 6. To prevent damage to components during the flipping process, a buffer mechanism is provided between the depth-limiting bracket 5 and the fixed base assembly 10. The buffer mechanism includes a positioning support plate 9 connected to the fixed base assembly 10, and a buffer cylinder 3 is mounted on the positioning support plate 9. The end of the telescopic rod of the buffer cylinder 3 is connected to the depth-limiting bracket 5, and the lower end of the positioning support plate 9 is fixedly connected to the depth-limiting bracket 5. In addition, a fixing mechanism is provided to fix the depth-limiting bracket 5 after flipping, specifically including a movable top seat 2. Example
[0022] A fixing plate 4 is provided on the positioning support plate 9. The fixing plate 4 has a hole, and the buffer cylinder 3 passes through the hole. The end of the cylinder body of the buffer cylinder 3 is hinged to the upper end of the positioning support plate 9.
[0023] Unlike the above embodiments, in this embodiment, a fixing plate 4 is provided on the positioning support plate 9. The fixing plate 4 has a hole, through which the buffer cylinder 3 passes and is connected to the depth limiting bracket 5. Example
[0024] The positioning support plate 9 is provided with an adjustment hole 11, the adjustment hole 11 is connected to a clamping plate 8, the clamping plate 8 is connected to a limiting fixing shaft 7, and the limiting fixing shaft 7 is connected to a depth limiting bracket 5.
[0025] Unlike the above embodiments, in this embodiment, a plurality of adjustment holes 11 are provided on the positioning support plate 9, and a cylindrical pin is provided in the adjustment hole 11. The cylindrical pin is connected to a clamping plate 8, and a limiting fixing shaft 7 is fixed by the clamping plate 8. The other end of the limiting fixing shaft 7 is connected to the depth limiting bracket 5. Example
[0026] The movable top seat 2 is hinged to the upper end of the positioning support plate 9, and the lower end face of the movable top seat 2 contacts the upper end face of the fixed plate 4. When the plow is turned over, the movable top seat 2 is disengaged from the fixed plate 4.
[0027] Unlike the above embodiments, in this embodiment, the fixing plate 4 is used to limit and fix the movable top seat 2. When it is flipped, the movable top seat 2 rotates due to gravity. At this time, the buffer cylinder 3 is activated. After flipping, due to gravity, the lower end of the movable top seat 2 contacts the fixing plate 4 and plays a fixing role.
[0028] The working method (or working principle) of this utility model:
[0029] During operation, the inclusion of a buffer cylinder 3 provides a cushioning effect during the plow's reversal process, preventing hard contact between parts and reducing damage rates. Furthermore, to ensure automatic fixation after reversal, a movable top seat 2 and a fixed plate 4 are mounted on the positioning support plate 9. The cooperation between the fixed plate 4 and the movable top seat 2 secures the fixed plate 4 after the plow has reversed. Additionally, several adjustment holes 11 on the positioning support plate 9 allow for adjustment of the plow's depth.
[0030] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A new type of hydraulic cushion depth limiting wheel, comprising a depth limiting wheel clamp plate (1), a fixing seat assembly (10) is connected to the depth limiting wheel clamp plate (1), a depth limiting support (5) is connected to the fixing seat assembly (10), and a tire assembly (6) is connected to the depth limiting support (5), characterized in that: Also include, Buffering mechanism, the buffering mechanism includes with fixed seat assembly (10) is linked to the positioning support plate (9), the positioning support plate (9) is connected with buffer oil cylinder (3), the telescopic rod of buffer oil cylinder (3) is connected with depth limiting support (5); Fixed mechanism, the fixed mechanism includes with positioning support plate (9) is linked to the movable top seat (2), the positioning support plate (9) is provided with fixed plate (4), the fixed plate (4) is provided with hole, and buffer oil cylinder (3) passes through the hole, the end of the cylinder body of buffer oil cylinder (3) is hinged to the upper end of positioning support plate (9), the positioning support plate (9) is provided with adjusting hole (11), the adjusting hole (11) is connected with clamping plate (8), the clamping plate (8) is connected with limiting fixed shaft (7), the limiting fixed shaft (7) is connected with depth limiting support (5), the movable top seat (2) is hinged to the upper end of positioning support plate (9), the lower end of movable top seat (2) contacts the upper end surface of fixed plate (4), when turning over plough, movable top seat (2) is separated from fixed plate (4).