Rotary cultivator blade structure capable of optimizing soil loosening effect
By designing positioning seats, positioning blocks, and locking components on the rotary tiller blades, the problems of poor soil loosening effect and complicated installation caused by loose screws and nuts are solved, achieving stable installation and efficient soil loosening.
Patent Information
- Application Number
- CN202520390201.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Existing rotary tiller blades are easily loosened by screws and nuts, resulting in poor soil loosening effect, and the assembly and disassembly process is complicated.
The tool assembly adopts a design with a fixed positioning seat and positioning block on the tool barrel. The tool assembly consists of a tool ring and welded blades. It is stably fixed by a positioning rod and locking component, eliminating the need for screw and nut installation. It is conveniently installed using slide rails and grooves.
This achieves stable fixing of the tool assembly, preventing loosening, simplifying the installation process, and improving the soil loosening effect and efficiency.
Smart Images

Figure CN223829859U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotary tillers, specifically a rotary tiller blade structure that can optimize soil loosening effect. Background Technology
[0002] A rotary tiller is a common agricultural machine whose main function is to loosen the soil and crush root stubble to facilitate subsequent crop planting. The use of rotary tillers greatly saves energy and significantly improves land preparation efficiency.
[0003] The blades of existing agricultural tillers are usually independent, fixed to the blade holder of the rotary tiller one by one with screws and nuts. Over time, the screws and nuts are prone to loosening, resulting in poor soil loosening effect. In addition, the assembly and disassembly process of such rotary tillers is also very complicated. Utility Model Content
[0004] The purpose of this invention is to provide a rotary tiller blade structure that can optimize soil loosening effect, thereby solving the above-mentioned problems.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a rotary tiller blade structure that can optimize soil loosening effect, including a blade cylinder, several positioning seats fixed on the blade cylinder, a positioning block inserted into each positioning seat, a connecting rod fixed on the positioning block, a blade assembly fixed on each connecting rod, the blade assembly being detachably installed on the positioning seat, a positioning rod provided through all the positioning blocks and the positioning seats, and locking components provided on both sides of the positioning rod;
[0006] The tool assembly consists of a tool ring and several blades welded and fixed to the outside of the tool ring. The blades and the tool ring are welded and fixed together.
[0007] Preferably, the locking assembly includes a threaded head fixed to one end of the positioning rod, the threaded head passing through the baffle, and a nut threadedly connected to the threaded head on one side of the baffle.
[0008] Preferably, the baffle is provided with an opening sized to allow the threaded head and the positioning rod to pass through.
[0009] Preferably, through holes are provided in both the positioning seat and the positioning block, and the shape of the through holes is consistent with the cross-sectional shape of the positioning rod.
[0010] Preferably, a slide rail is fixedly provided on the cutter barrel, and a slide groove is formed on the slide rail. The cross-section of the slide groove is consistent with the cross-section of the positioning block. Each positioning seat is fixed to the slide rail. A first slot is formed on the slide rail at the position of the positioning seat, and a second slot is formed on the positioning seat to mate with the first slot.
[0011] Preferably, the side of the positioning block near the slide groove is flush with the side wall of the slide groove near the positioning seat.
[0012] In summary, this utility model has the following beneficial effects:
[0013] 1. This utility model fixes several positioning seats on the tool barrel, and a positioning block is inserted into each positioning seat. A connecting rod is fixed on the positioning block, and a tool assembly is fixed on each connecting rod. The tool assembly can be detachably installed on the positioning seat. A positioning rod is set through all the positioning blocks and positioning seats to lock all the positioning blocks. Locking components are set on both sides of the positioning rod to lock the position of the positioning rod. Finally, each tool assembly can be stably fixed in the position of the positioning seat, which is very convenient for installation.
[0014] 2. The tool set consists of a tool ring and several blades welded and fixed to the outside of the tool ring, which eliminates the process of installing the blades with screws and nuts, making it very convenient. Moreover, since the blades and tool ring are welded and fixed as one piece, there is no need to worry about loosening during use, which greatly enhances the soil loosening effect.
[0015] 3. A slide rail is fixedly installed on the tool barrel, and a groove is opened on the slide rail. The cross-section of the groove is consistent with the cross-section of the positioning block, so that the positioning block can slide smoothly in the groove. Each positioning seat is fixed to the slide rail. A first slot is opened on the slide rail at the position of the positioning seat. A second slot is opened on the positioning seat to mate with the first slot. Both the second slot and the first slot are for the connection rod to pass through. The side of the positioning block near the groove is flush with the side wall of the groove near the positioning seat. In this way, when the tool barrel is tilted and the positioning block is manually pushed along the groove, the positioning block will automatically slide into the first positioning seat to achieve positioning. When the next positioning block is pushed, it continues to slide along the first positioning block and then automatically slides into the second positioning seat to achieve positioning. The installation is very convenient. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a three-dimensional schematic diagram of this application;
[0018] Figure 2 yes Figure 1 Enlarged view of point A in the middle;
[0019] Figure 3This is a first sectional view of this application;
[0020] Figure 4 yes Figure 3 Enlarged view of point B in the middle;
[0021] Figure 5 This is a schematic diagram of the structure after removing one of the tool groups in this application;
[0022] Figure 6 yes Figure 5 Enlarged view of point C in the middle;
[0023] Figure 7 This is a second sectional view of this application;
[0024] Figure 8 yes Figure 7 Enlarged diagram of point D in the middle.
[0025] In the diagram: 10. Tool barrel; 11. Slide rail; 12. Slide groove; 13. Positioning rod; 14. Threaded head; 15. Baffle; 16. Nut; 17. Positioning seat; 18. Positioning block; 19. Connecting rod; 20. Slot No. 1; 21. Slot No. 2; 30. Tool set; 31. Tool ring; 32. Blade. Detailed Implementation
[0026] The present invention will be further described in detail below with reference to the embodiments, but the implementation of the present invention is not limited thereto.
[0027] Combined with appendix Figures 1-8 The diagram shows a rotary tiller blade structure that optimizes soil loosening. It includes a blade cylinder 10, with several positioning seats 17 fixed on the cylinder 10. A positioning block 18 is inserted into each positioning seat 17, and a connecting rod 19 is fixed to each positioning block 18. A blade assembly 30 is fixed to each connecting rod 19. The blade assembly 30 is detachably mounted on the positioning seat 17. A positioning rod 13 is provided through all the positioning blocks 18 and the positioning seats 17, locking all the positioning blocks 18. Locking components are provided on both sides of the positioning rod 13 to lock its position, ultimately ensuring that each blade assembly 30 is stably fixed to the position of the positioning seat 17.
[0028] To facilitate installation, the tool assembly 30 has been improved. The tool assembly 30 consists of a tool ring 31 and several blades 32 welded and fixed to the outside of the tool ring 31. This eliminates the need to install the blades 32 with screws and nuts, which is very convenient. Furthermore, since the blades 32 and the tool ring 31 are welded and fixed together, there is no need to worry about loosening during use, which greatly enhances the soil loosening effect.
[0029] The locking assembly includes a threaded head 14 fixed to one end of the positioning rod 13. The threaded head 14 passes through the baffle 15. A nut 16 is threaded onto the threaded head 14 on one side of the baffle 15. The position of the positioning rod 13 is locked by tightening the nuts 16 on both sides to abut against the baffle 15.
[0030] An opening is provided on the baffle 15, and the size is sufficient for the threaded head 14 and the positioning rod 13 to pass through, so as to facilitate the insertion and removal of the positioning rod 13 and the threaded head 14.
[0031] Through holes are provided on both the positioning seat 17 and the positioning block 18, and the shape of the through holes is consistent with the cross-sectional shape of the positioning rod 13, so as to facilitate the passage of the positioning rod 13. The positioning rod 13 can play a good locking effect on the positioning block 18. It should be noted that after the positioning block 18 is inserted into the positioning seat 17, the through holes on the positioning block 18 are aligned with the through holes on the positioning seat 17.
[0032] For ease of installation, a slide rail 11 is fixedly installed on the cutter barrel 10. A groove 12 is formed on the slide rail 11. The cross-section of the groove 12 is the same as the cross-section of the positioning block 18, so that the positioning block 18 can slide smoothly in the groove 12. Each positioning seat 17 is fixed to the slide rail 11. A first slot 20 is formed on the slide rail 11 at the position of the positioning seat 17. A second slot 21 is formed on the positioning seat 17 to mate with the first slot 20. Both the second slot 21 and the first slot 20 are for the convenience of the connecting rod 19 passing through.
[0033] Specifically, the side of the positioning block 18 near the slide groove 12 is flush with the side wall of the slide groove 12 near the positioning seat 17. When the cutter cylinder 10 is tilted and the positioning block 18 is manually pushed along the slide groove 12, the positioning block 18 will automatically slide into the first positioning seat 17 to achieve positioning. When the next positioning block 18 is pushed, it continues to slide along the first positioning block 18 and then automatically slides into the second positioning seat 17 to achieve positioning, making installation very convenient.
[0034] In addition, the surface of the blade 32 can be treated to create sharkskin-like protrusions to optimize the soil loosening effect.
[0035] Disassembly and installation methods:
[0036] During disassembly, manually unscrew the two nuts 16, pull out the threaded head 14 and the positioning rod 13, and then push each of the positioning blocks 18 out of the positioning seat 17, and remove the positioning blocks 18 along with the tool assembly 30 one by one along the slide groove 12.
[0037] During installation, the tool cylinder 10 can be tilted, and then the positioning block 18 can be manually inserted into the slide groove 12. At this time, the tool assembly 30 is fitted onto the tool cylinder 10. Push the positioning block 18 along the slide groove 12. Under the action of gravity, the first tool will automatically slide into the first positioning seat 17 to achieve positioning. When pushing the next positioning block 18, it continues to slide along the first positioning block 18 and then automatically slides into the second positioning seat 17 to achieve positioning, until all the tool assemblies 30 are installed. After completion, the positioning rod 13 and the threaded head 14 are passed through the through holes on each positioning seat 17 and the positioning block 18, and the nuts 16 on both sides are tightened to achieve locking. The baffle 15 blocks the nuts 16 to achieve locking.
[0038] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand and implement the content of this utility model. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A rotary tiller blade structure that optimizes soil loosening, comprising a blade barrel (10), characterized in that, A plurality of positioning seats (17) are fixed on the tool barrel (10), and a positioning block (18) is inserted into each positioning seat (17). A connecting rod (19) is fixed on the positioning block (18), and a tool assembly (30) is fixed on each connecting rod (19). The tool assembly (30) is detachably installed on the positioning seat (17). A positioning rod (13) is provided through all the positioning blocks (18) and the positioning seats (17), and locking components are provided on both sides of the positioning rod (13). The tool assembly (30) consists of a tool ring (31) and several blades (32) welded and fixed to the outside of the tool ring (31). The blades (32) and the tool ring (31) are welded and fixed together.
2. The rotary tiller blade structure for optimizing soil loosening effect according to claim 1, characterized in that, The locking assembly includes a threaded head (14) fixed to one end of the positioning rod (13), the threaded head (14) passing through the baffle (15), and a nut (16) threadedly connected to the threaded head (14) on one side of the baffle (15).
3. The rotary tiller blade structure for optimizing soil loosening effect according to claim 2, characterized in that, An opening is provided on the baffle (15) and is sized to allow the threaded head (14) and the positioning rod (13) to pass through.
4. The rotary tiller blade structure for optimizing soil loosening effect according to claim 1, characterized in that, Through holes are provided on both the positioning seat (17) and the positioning block (18), and the shape of the through holes is consistent with the cross-sectional shape of the positioning rod (13).
5. The rotary tiller blade structure for optimizing soil loosening effect according to claim 1, characterized in that, A slide rail (11) is fixedly installed on the cutter barrel (10). A slide groove (12) is opened on the slide rail (11). The cross-section of the slide groove (12) is the same as the cross-section of the positioning block (18). Each positioning seat (17) is fixed to the slide rail (11). A first slot (20) is opened on the slide rail (11) at the position of the positioning seat (17). A second slot (21) is opened on the positioning seat (17) to connect with the first slot (20).
6. The rotary tiller blade structure for optimizing soil loosening effect according to claim 5, characterized in that, The side of the positioning block (18) near the slide (12) is flush with the side wall of the slide (12) near the positioning seat (17).