Working depth-limiting adjusting mechanism for mini-tiller
By designing a purely mechanical depth limit adjustment mechanism, the problem of the rotary tillage knife barrel of the micro-tillage machine is solved, and the height is flexible adjustment is achieved, the defect of increasing weight is avoided, and the lightweight and flexible use needs of the micro-tillage machine are met.
Patent Information
- Application Number
- CN202420996574.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-09
AI Technical Summary
When working, the height of the rotary tillage knife barrel is fixed and cannot be effectively adjusted, resulting in the hydraulic system with limited use and increased equipment weight that cannot be compatible with the lightweight concept of the micro-tillage machine.
A working depth control mechanism for micro-tillers is designed, adopting a pure mechanical structure, including a limiting plate, a manual limiting rod, an active link and a driven link. The active link and a driven link are driven by the rotation of the manual limiting rod to achieve height adjustment of the base and the blade.
It realizes flexible adjustment of the height of the rotary tillage knife barrel of the micro-tillage machine, avoiding the problem of increasing weight using hydraulic systems, simple structure and convenient operation, meeting the needs of lightweight and flexible use of the micro-tillage machine.
Smart Images
Figure CN222602959U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of micro-tillage machines, in particular to a working depth limiting adjustment mechanism for micro-tillage machines. Background Art
[0002] The micro-tillage machine is powered by a small fuel engine (diesel or gasoline engine), and has the characteristics of light weight, small size, simple structure, etc. The micro-tillage machine is widely used in dry land, paddy fields, orchards, etc. in plains, mountains, and hills. The micro-tillage machine can be used freely in the field, which is convenient for users to use and store, eliminating the trouble that large agricultural machinery cannot enter the mountainous fields. It is the best choice for farmers and consumers to replace cattle plowing.
[0003] When the existing micro-tillage machine is working, the position of the rotary tillage drum on the machine body is generally fixed. The user manually raises or lowers the height of the hand handle, and then lowers or raises the height of the rotary tillage drum accordingly. This operation method is limited by the height of the user, and the height range of the rotary tillage drum is also limited. Some use a hydraulic system to adjust the height of the drum. A hydraulic system will undoubtedly increase the weight of the micro-tillage machine, which is contrary to the light concept of the micro-tillage machine. Therefore, there is an urgent need for a depth adjustment mechanism that can adjust the height of the rotary tillage drum without greatly affecting its weight. Utility Model Content
[0004] The utility model aims to provide a working depth limit adjustment mechanism for a micro-tillage machine, so as to solve the problem of lack of a depth limit adjustment mechanism which can adjust the height of a rotary tillage blade drum without greatly affecting its weight.
[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0006] A working depth limit adjustment mechanism for a micro-tiller comprises a traveling frame, a base, a knife barrel and a depth limit adjustment mechanism, wherein the base is rotatably mounted on the traveling frame, the knife barrel is mounted on one end of the base, a fuel engine on the base drives the traveling frame and the knife barrel to work, the depth limit adjustment mechanism is mounted on the traveling frame, and the working end of the depth limit adjustment mechanism is rotatably connected to the other end of the base.
[0007] A further technical solution is: the depth limit adjustment mechanism includes a limit plate, a manual limit rod, an active connecting rod and a driven connecting rod, the limit plate is installed on the walking frame, one end of the manual limit rod is rotatably connected to the limit plate, and a pin shaft and a limit groove matching the pin shaft are provided between the manual limit rod and the limit plate, one end of the active connecting rod is connected to the manual limit rod, and both ends of the driven connecting rod are respectively rotatably connected to the other end of the active connecting rod and the base.
[0008] A further technical solution is: the manual limit rod includes a pressing rod, a hollow rod, a slider and a return spring, the hollow rod is rotatably mounted on the limit plate, the bottom end of the hollow rod is connected to one end of the active connecting rod, the pressing rod, the slider and the return spring are arranged from top to bottom and slidably mounted in the hollow rod, the return spring presses the slider against the bottom end of the pressing rod, and the pin shaft is mounted on the slider.
[0009] A further technical solution is: a handle is provided at the upper end of the hollow rod.
[0010] A further technical solution is that the sliding block is threadedly connected to the pressing rod.
[0011] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:
[0012] The utility model proposes a working depth limit adjustment mechanism for a micro-tiller, which uses the depth limit adjustment mechanism to adjust a base on a mobile frame, and one end of the base is driven by the depth limit adjustment mechanism to perform a lowering or raising movement, thereby causing a knife barrel at the other end of the base to perform a corresponding raising or lowering movement, thereby achieving a good effect of adjusting the working depth of the micro-tiller, and the depth limit adjustment mechanism is a purely mechanical mechanism with a simple structure and convenient operation, thus avoiding the problem of increased weight of the micro-tiller caused by the use of a hydraulic system. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The utility model is a structural schematic diagram of a working depth limiting adjustment mechanism for a micro-tillage machine.
[0014] Figure 2 For this utility model Figure 1 Schematic diagram of the structure of the middle depth limit adjustment mechanism.
[0015] Figure 3 For this utility model Figure 2 Schematic diagram of the structure of the manual limit rod.
[0016] Figure numerals: 1. walking frame; 2. base; 3. knife barrel; 4. depth limit adjustment mechanism; 5. handle; 6. fuel engine; 7. limit plate; 8. manual limit rod; 9. active connecting rod; 10. driven connecting rod; 11. pin shaft; 12. limit groove; 13. pressing rod; 14. hollow rod; 15. slider; 16. return spring. DETAILED DESCRIPTION
[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.
[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.
[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.
[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0021] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] Embodiment 1:
[0024] In this embodiment, Figure 1 As shown, a working depth limit adjustment mechanism for a micro-tillage machine comprises a walking frame 1, a base 2, a knife barrel 3 and a depth limit adjustment mechanism 4. The base 2 is rotatably mounted on the walking frame 1, the knife barrel 3 is mounted at one end of the base 2, the fuel engine 6 on the base 2 drives the walking frame 1 and the knife barrel 3 to work, the depth limit adjustment mechanism 4 is mounted on the walking frame 1, and the working end of the depth limit adjustment mechanism 4 is rotatably connected to the other end of the base 2. The micro-tillage machine uses the depth limit adjustment mechanism to adjust the base on the mobile frame, one end of the base is driven by the depth limit adjustment mechanism to lower or raise the movement, thereby making the knife barrel at the other end of the base to perform a corresponding height increase or lowering movement, so as to achieve the effect of adjusting the working depth of the micro-tillage machine well, and the depth limit adjustment mechanism is a pure mechanical mechanism with a simple structure and convenient operation, avoiding the problem of increasing the weight of the micro-tillage machine due to the use of a hydraulic system.
[0025] Embodiment 2:
[0026] Based on the above embodiments, this embodiment Figure 2 As shown, the depth limit adjustment mechanism 4 includes a limit plate 7, a manual limit rod 8, an active connecting rod 9 and a driven connecting rod 10. The limit plate 7 is installed on the walking frame 1, one end of the manual limit rod 8 is rotatably connected to the limit plate 7, and a pin shaft 11 and a limit groove 12 matched with the pin shaft 11 are provided between the manual limit rod 8 and the limit plate 7, one end of the active connecting rod 9 is connected to the manual limit rod 8, and both ends of the driven connecting rod 10 are rotatably connected to the other end of the active connecting rod 9 and the base 2 respectively.
[0027] First, release the lock between the pin shaft 11 on the manual limit rod 8 and the limit groove 12 on the limit plate 7, then rotate the manual limit rod 8, rotate the active connecting rod 9 upward, and lift the base 2 upward through the driven connecting rod 10 to achieve the purpose of lowering the knife cylinder 3. When the height of the knife cylinder 3 reaches the desired height, lock the pin shaft 11 on the manual limit rod 8 and the limit groove 12 on the limit plate 7.
[0028] Embodiment three:
[0029] Based on the above embodiments, this embodiment Figure 3 As shown, the manual limit rod 8 includes a pressing rod 13, a hollow rod 14, a slider 15 and a return spring 16. The hollow rod 14 is rotatably mounted on the limit plate 7. The bottom end of the hollow rod 14 is connected to one end of the active connecting rod 9. The pressing rod 13, the slider 15 and the return spring 16 are arranged from top to bottom and slidably mounted in the hollow rod 14. The return spring 16 presses the slider 16 against the bottom end of the pressing rod 13. The pin 11 is mounted on the slider 15.
[0030] When the locking between the pin shaft 11 on the manual limiting lever 8 and the limiting groove 12 on the limiting plate 7 needs to be released, the pressing lever 13 only needs to be pressed down, and the pressing lever 13 presses the slider 15 downward, and compresses the return spring 16 at the same time, and the pin shaft 11 is disengaged from the limiting groove 12. When the pressing lever 13 is released, the elastic potential energy of the return spring 16 is released, pushing the slider 15 to move upward, thereby locking the pin shaft 11 and the limiting groove 12.
[0031] The limiting groove 12 is an arc-shaped groove, and a plurality of grooves matching with the pin shaft 11 are arranged on the arc-shaped groove.
[0032] The slide block 15 is provided with a sliding groove for the pin shaft 11 .
[0033] Preferably, a handle 5 is provided at the upper end of the hollow rod 14 .
[0034] Preferably, the slider 15 is threadedly connected to the pressing rod 13 .
[0035] The pressing rod 13 can be rotated to adjust the height of the slide block 15 .
[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A working depth limit adjustment mechanism for a micro-tillage machine, characterized in that: The invention comprises a traveling frame (1), a base (2), a knife barrel (3) and a depth-limiting adjustment mechanism (4), wherein the base (2) is rotatably mounted on the traveling frame (1), the knife barrel (3) is mounted on one end of the base (2), a fuel engine (6) on the base (2) drives the traveling frame (1) and the knife barrel (3) to work, and the depth-limiting adjustment mechanism (4) is mounted on the traveling frame (1), and a working end of the depth-limiting adjustment mechanism (4) is rotatably connected to the other end of the base (2).
2. The working depth limit adjustment mechanism for a micro-tillage machine according to claim 1 is characterized in that: The depth limit adjustment mechanism (4) comprises a limit plate (7), a manual limit rod (8), an active connecting rod (9) and a driven connecting rod (10); the limit plate (7) is mounted on the walking frame (1); one end of the manual limit rod (8) is rotatably connected to the limit plate (7); a pin shaft (11) and a limit groove (12) matched with the pin shaft (11) are provided between the manual limit rod (8) and the limit plate (7); one end of the active connecting rod (9) is connected to the manual limit rod (8); and two ends of the driven connecting rod (10) are rotatably connected to the other end of the active connecting rod (9) and the base (2) respectively.
3. The working depth limit adjustment mechanism for a micro-tillage machine according to claim 2 is characterized in that: The manual limiting rod (8) comprises a pressing rod (13), a hollow rod (14), a slider (15) and a return spring (16); the hollow rod (14) is rotatably mounted on the limiting plate (7); the bottom end of the hollow rod (14) is connected to one end of the active connecting rod (9); the pressing rod (13), the slider (15) and the return spring (16) are arranged from top to bottom and slidably mounted in the hollow rod (14); the return spring (16) presses the slider against the bottom end of the pressing rod (13); and the pin shaft (11) is mounted on the slider (15).
4. The working depth limit adjustment mechanism for a micro-tillage machine according to claim 3 is characterized in that: A handle (5) is provided at the upper end of the hollow rod (14).
5. The working depth limit adjustment mechanism for a micro-tillage machine according to claim 3 is characterized in that: The sliding block (15) is threadedly connected to the pressing rod (13).