A green storage machine convenient for blade protection
By incorporating a blade holder, movable groove, screw, and third mounting hole into the silage harvester, the blades can be individually disassembled and recycled, solving the problem of blades being unable to be disassembled after wear and improving blade protection and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO HARVESTER MASCH PARTS CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-06-02
AI Technical Summary
Existing silage harvesters cannot be disassembled and recycled separately after the blades wear out, resulting in reduced protection and the blades are prone to rust and corrosion when not in use.
By incorporating a blade holder, movable groove, screw, and third mounting hole, the mounting plate can be slidably connected, enabling individual removal and recycling of the blades. Unused blades are protected by a blade cover that shields the slot.
It enables individual disassembly and recycling of the blades, preventing rust and corrosion, and improving the protection of the blades and the service life of the entire set of blades.
Smart Images

Figure CN224306389U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of forage harvester maintenance technology, specifically relating to a forage harvester that facilitates blade protection. Background Technology
[0002] A silage harvester is an agricultural machine specifically designed for harvesting and crushing tall crops such as corn stalks and compressing the material into silage. Its core functions include efficient harvesting, crushing, and compression. It can complete the cutting, crushing, and loading of straw in one operation and is suitable for crops such as corn, sorghum, and sugarcane.
[0003] However, in actual use, existing silage harvesters cannot disassemble only the worn blade when it wears down in a single location, thus reducing the protection of the entire blade assembly. Furthermore, the blade heads cannot be recycled when not in use, which can easily lead to corrosion and rust. This paper proposes a silage harvester that facilitates blade protection and alleviates the aforementioned problems. Summary of the Invention
[0004] This utility model achieves the purpose of individually disassembling and retrieving the blade by using the cooperation of structures such as the blade holder, movable groove, screw, blade and third mounting hole to allow the mounting plate to be retracted into the slide and the blade to be removed from the screw.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A forage harvester with easy blade protection includes a rotating column, a mounting roller connected to the bottom of the rotating column, and a harvesting disc on the outer surface of the mounting roller. A fixing ring is provided at the center of the harvesting disc, and a blade cover is installed on the outside of the harvesting disc. Limiting grooves are arranged in a ring array on the blade cover, and a blade holder is connected to the outside of the limiting grooves. The blade holder includes a slide seat arranged symmetrically on the upper and lower sides. A mounting plate is provided inside the slide seat. A groove is opened on the upper surface of the mounting plate. A blade is placed inside the groove. A screw is provided at the center of the bottom surface of the groove. A third mounting hole adapted to the screw is opened on the blade. A movable groove is opened on the upper surface of the slide seat.
[0007] Preferably, the slide block has a slide groove on its side end, and both sides of the mounting plate are connected to sliders that are adapted to the slide groove. One end of the slide groove is provided with a fixing plate, and the fixing plate is fixed to the slider by fastening bolts.
[0008] Preferably, the harvesting blade disc has a first mounting hole arranged in a ring array, and the blade holder has a second mounting hole adapted to the first mounting hole. The interiors of the corresponding first mounting hole and second mounting hole are connected by fasteners.
[0009] Preferably, the harvesting blade disc has slots arranged in a circular array on its side end, and the blade holder is provided with a plug that matches the slot.
[0010] Preferably, the outer surface of the mounting roller has multiple sets of first threaded holes at equal intervals, and the fixing ring has a second threaded hole that matches the first threaded hole. Bolts are connected in the first threaded hole and the second threaded hole.
[0011] Preferably, the fixing ring is movably sleeved on the outside of the mounting roller, and the blade cover is movably connected to the fixing ring.
[0012] Compared with the prior art, the gain effect of this utility model is as follows:
[0013] 1. By setting up structures such as a tool holder, movable groove, screw, blade, and third mounting hole, the mounting plate can be retracted into the slide through the sliding connection between the slide and the mounting plate, thereby driving the blade into the slide. This protects the blade and prevents it from being exposed to the outside for a long time, which would cause rust and corrosion. When the blade wears out, the nut can be turned and the blade removed from the screw, allowing the blade to be removed separately for replacement or maintenance, further improving the protection of the blade.
[0014] 2. By setting up structures such as a harvesting blade disc, blade cover, first mounting hole, second mounting hole, insert block and slot, when the side of the harvesting blade disc does not require a blade holder and blades, rotating the blade cover will cause the side of the blade cover to cover the slot, thus protecting the slot and improving the protection of the harvesting blade disc. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0016] Figure 2 This is a schematic diagram of the fixing ring, tool holder, and blade structure according to an embodiment of the present utility model;
[0017] Figure 3 This is a schematic diagram of the harvesting blade and blade cover in use according to an embodiment of the present invention;
[0018] Figure 4 This is a schematic diagram of the harvesting blade and blade cover in the non-use state of this utility model embodiment;
[0019] Figure 5 This is a schematic diagram of the structure of the tool holder and the blade according to an embodiment of the present utility model;
[0020] Figure 6 This is an exploded view of the tool holder and the blade according to an embodiment of the present invention.
[0021] In the diagram: 1. Rotating column; 2. Mounting roller; 21. First threaded hole; 3. Harvesting disc; 31. Slot; 32. First mounting hole; 4. Blade cover; 41. Limiting groove; 5. Fixing ring; 51. Second threaded hole; 52. Bolt; 6. Blade holder; 61. Slide; 611. Second mounting hole; 612. Slide groove; 613. Fixing plate; 614. Insert block; 62. Mounting plate; 63. Screw; 631. Slider; 632. Blade; 7. Third mounting hole; 71. Detailed Implementation
[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0023] Example
[0024] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it. Those skilled in the art will recognize that this utility model can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of this utility model by illustrating examples of it.
[0025] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this utility model. It should also be noted in the description of this utility model that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances; any content not described in detail in this specification belongs to the prior art known to those skilled in the art.
[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, so as to facilitate a clearer understanding of the present invention.
[0027] Please see Figure 1-6 A forage harvester that facilitates blade protection includes a rotating column 1, an installation roller 2 fixedly connected to the bottom of the rotating column 1, a harvesting disc 3 provided on the outer surface of the installation roller 2, a fixing ring 5 fixedly provided at the center of the harvesting disc 3, the fixing ring 5 being movably sleeved on the outside of the installation roller 2, and a blade cover 4 installed on the outside of the harvesting disc 3, the blade cover 4 being movably connected to the fixing ring 5.
[0028] In this embodiment, when the blade holder 6 does not need to be installed, the blade cover 4 is rotated so that the side of the blade cover 4 covers the slot 31, protecting the slot 31 and improving the protection of the harvesting blade disc 3.
[0029] Please see Figure 1-6 The blade cover 4 has a ring array of limiting grooves 41, and the outer side of the limiting groove 41 is engaged with the blade holder 6. The side end of the harvesting blade disc 3 has a ring array of slots 31. The blade holder 6 is fixedly provided with a plug 62 that matches the slot 31. The harvesting blade disc 3 has a ring array of first mounting holes 32, and the blade holder 6 has a second mounting hole 611 that matches the first mounting hole 32. The interiors of the corresponding first mounting hole 32 and second mounting hole 611 are connected by fasteners.
[0030] Please see Figure 1-6 The tool holder 6 includes a slide block 61 arranged symmetrically on the upper and lower sides. The slide block 61 has a mounting plate 63 inside. The mounting plate 63 and the slide block 61 are slidably connected. The slide block 612 is provided on the side end of the slide block 61. The mounting plate 63 has a slider 632 that is adapted to the slider 612 fixedly connected to both sides. A fixing plate 613 is fixedly provided at one end of the slider 612. The fixing plate 613 is fixed to the slider 632 by fastening bolts.
[0031] Please see Figure 1-6 The upper surface of the mounting plate 63 has a groove, the inside of which is a blade 7, and a screw 631 is fixedly installed at the center of the inner bottom surface of the groove. The blade 7 has a third mounting hole 71 that matches the screw 631. The upper surface of the slide block 61 has a movable groove 614, and the screw 631 is movably installed inside the movable groove 614.
[0032] Please see Figure 1-6 The outer surface of the mounting roller 2 has multiple sets of first threaded holes 21 at equal intervals. The fixing ring 5 has a second threaded hole 51 that matches the first threaded hole 21. The first threaded hole 21 and the second threaded hole 51 are internally threaded with bolts 52, so that the harvesting disc 3 is fixedly mounted on the mounting roller 2 by bolts 52 and first threaded holes 21.
[0033] Working principle: In use, firstly, select a certain number of harvesting discs 3 according to actual needs, and place the harvesting discs 3 onto the mounting roller 2. Move the fixing ring 5 until it reaches the desired position, then rotate the fixing ring 5 to align the second threaded hole 51 with the first threaded hole 21. Screw the bolt 52 into the first threaded hole 21 and the second threaded hole 51 to fix the harvesting discs 3. Then rotate the blade cover 4 to expose the slot 31, and insert the insert block 62 of each blade holder 6 into the slot 31. At this time, the slide 61 engages with the limiting groove 41. The first mounting hole 32 and the second mounting hole 611 are aligned. Fasteners are inserted into the first mounting hole 32 and the second mounting hole 611 to fix the blade holder 6 and the harvesting disc 3. Then, the mounting plate 63 is pulled outward from the slide 61 so that the mounting plate 63 is located outside the slide 61. The third mounting hole 71 of the blade 7 is aligned with the screw 631 and inserted. Then, the blade 7 is fixed with a nut to fix the blade holder 6 and the blade 7. Finally, the slider 632 and the fixing plate 613 are fixed with fastening bolts to install the blade assembly.
[0034] When the blade 7 wears out, turn the nut and remove the blade 7 from the screw 631. This allows the blade 7 to be removed separately for replacement or maintenance, thereby improving the protection of the blade 7. When the blade 7 is no longer needed, turn the fastening bolt to release the fixing relationship between the slider 632 and the fixing plate 613, and pull the mounting plate 63 inward. This causes the mounting plate 63 to pull the blade 7 into the slide 61, thus protecting the blade 7.
Claims
1. A forage harvester for easy blade protection, comprising a rotating column (1), wherein a mounting roller (2) is connected to the bottom of the rotating column (1), characterized in that, The outer surface of the mounting roller (2) is provided with a harvesting disc (3), and a fixing ring (5) is provided at the center of the harvesting disc (3). A blade cover (4) is installed on the outside of the harvesting disc (3). A limiting groove (41) is opened in a ring array on the blade cover (4). A blade holder (6) is connected to the outside of the limiting groove (41). The blade holder (6) includes a slide (61) arranged symmetrically on the upper and lower sides. A mounting plate (63) is provided inside the slide (61). A groove is opened on the upper surface of the mounting plate (63). A blade (7) is provided inside the groove. A screw (631) is provided at the center of the bottom surface of the groove. A third mounting hole (71) is opened on the blade (7) to match the screw (631). A movable groove (614) is opened on the upper surface of the slide (61).
2. A forage harvester for easy blade protection according to claim 1, characterized in that, The slide block (61) has a slide groove (612) on its side end. The mounting plate (63) has sliders (632) on both sides that are adapted to the slide groove (612). One end of the slide groove (612) is provided with a fixing plate (613). The fixing plate (613) is fixed to the slider (632) by fastening bolts.
3. A forage harvester for easy blade protection according to claim 1, characterized in that, The harvesting blade (3) has a first mounting hole (32) arranged in a ring array, and the blade holder (6) has a second mounting hole (611) that matches the first mounting hole (32). The interiors of the corresponding first mounting hole (32) and second mounting hole (611) are connected by fasteners.
4. A forage harvester for easy blade protection according to claim 1, characterized in that, The harvesting blade (3) has slots (31) arranged in a ring array on its side end, and the blade holder (6) is provided with a plug (62) that matches the slot (31).
5. A forage harvester for easy blade protection according to claim 1, characterized in that, The outer surface of the mounting roller (2) is provided with multiple sets of first threaded holes (21) at equal intervals, and the fixing ring (5) is provided with second threaded holes (51) that are adapted to the first threaded holes (21). Bolts (52) are connected in the first threaded holes (21) and the second threaded holes (51).
6. A forage harvester for easy blade protection according to claim 1, characterized in that, The fixing ring (5) is movably sleeved on the outside of the mounting roller (2), and the blade cover (4) is movably connected to the fixing ring (5).