Stubble cutting device of silage maize harvester header
By setting up a stubble breaker at the bottom of the blade of the silage cutting table, the problems of clogging and blade damage are solved, effective weed removal and blade protection are achieved, and the working efficiency and service life of the equipment are improved.
Patent Information
- Application Number
- CN202422982012.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-12-04
AI Technical Summary
The stubble breakers of the existing header are prone to clogging during work, and are prone to damage the blade in complex field environments, affecting work efficiency.
A stubble breaking device for a silage cutting table is designed, which includes a blade reinforcement rib symmetrically arranged on the outer edge of the blade bottom. A stubble breaker is provided on the blade reinforcement rib. The stubble breaker consists of a step-shaped bent plate and a reinforcement rib. It is bolted to the blade, which can remove wound weeds and protect the blade when rotated.
Effectively remove weeds wrapped around the bottom, prevent passage blockage, improve the service life of the blade, and protect the blade from deformation in complex environments.
Smart Images
Figure CN223142507U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a stubble breaking device for a silage machine cutting platform, belonging to the technical field of agricultural machinery. Background Art
[0002] The crop harvesting header is a crop harvesting machine. The existing header technology is mature. When harvesting crops, the stubble breaker device at the bottom of the header can crush the stubble. The existence of stubble will damage the tires, is not easy to rot, and most of the insect eggs are at the bottom of the straw, which will cause pests and diseases. There will be a gap between the bottom blade and the fork. The connection between the fork circular tube and the fork guide disc is most likely to be blocked by weeds. When the header is working, the stubble breaker will remove these weeds to prevent channel blockage and increase the service life of the blade. The farmland situation is complicated. If the stubble breaker cuts hard objects during operation, it is easy to deform the blade and affect work efficiency. Therefore, it is urgent to design a stubble breaker that has good weeding effect and can protect the blade. Utility Model Content
[0003] The utility model aims to provide a stubble breaking device for a silage machine cutting table, which can remove weeds entangled at the bottom, increase the service life of the blade, and protect the blade in a complex field environment, thereby solving the above-mentioned problems existing in the background technology.
[0004] The technical solution of the utility model is:
[0005] A stubble breaking device for a forage harvester cutting table comprises two blade reinforcement ribs symmetrically arranged at the outer edge of the bottom of a blade, a stubble breaker is provided on the blade reinforcement rib, the stubble breaker comprises the stubble breaker reinforcement rib, a stubble breaker base, a first fixing hole and a second fixing hole, the stubble breaker base is a stepped curved plate, one side of the stepped curved plate is a horizontal plane, a first fixing hole and a second fixing hole are provided on the horizontal plane, bolts penetrate through the first fixing hole and the second fixing hole to connect and fix the stubble breaker base to the blade reinforcement rib, the other side of the stepped curved plate is a bent surface, the bent surface extends downward toward the outside, and a stubble breaker reinforcement rib is provided on the bent surface of the stubble breaker base.
[0006] Furthermore, the bending surface of the stubble breaker base consists of an inclined surface and a plane connected to each other, and the stubble breaker reinforcement ribs include two parts, namely a trapezoidal reinforcement rib and a rectangular reinforcement rib. The hypotenuse of the trapezoidal reinforcement rib is vertically welded on the inclined surface, and the rectangular reinforcement rib is vertically welded on the plane.
[0007] Furthermore, two ends of the stubble breaker reinforcement rib are located at two opposite corners of the bending surface of the stubble breaker base.
[0008] Furthermore, the blade reinforcement rib is arc-shaped and is fixed to the outer edge of the bottom of the blade by bolts.
[0009] Further, a dividing fork guide disc is provided below the blade. The dividing fork guide disc is welded to the dividing fork round tube. There is a gap between the bottom of the blade and the dividing fork guide disc, and the height of this gap is greater than the height of the stubble breaker. When the blade rotates, the stubble breaker on the blade reinforcing rib passes through this gap.
[0010] Further, a drum gearbox is provided below the blade, and the blade is powered by the drum gearbox.
[0011] The positive effects of the present utility model are as follows: The stubble breaker crushes the stubble, avoiding puncturing the tires. The crushed stubble is perishable, reducing pests and diseases. The stubble breaking device can also remove the weeds entangled at the bottom, preventing the channel from being blocked, thereby increasing the service life of the blade; at the same time, it protects the blade in the complex field environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is a schematic diagram of the usage state of the present utility model;
[0013] Figure 2 is a schematic diagram of the structure of the stubble breaker of the present utility model;
[0014] In the figure: blade reinforcing rib 1, stubble breaker 2, stubble breaker reinforcing rib 201, trapezoidal reinforcing rib 201-1, rectangular reinforcing rib 201-2, stubble breaker base 202, horizontal plane 202-1, bent surface 202-2, inclined surface 202-2-1, flat surface 202-2-2, fixing hole one 203, fixing hole two 204, drum gearbox 3, blade 4, dividing fork fixing seat 5, dividing fork round tube 6, dividing fork guide disc 7. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] The following further describes the present utility model in conjunction with the drawings and embodiments:
[0016] A stubble breaking device for a silage harvester cutting table includes two blade reinforcing ribs 1 symmetrically arranged at the outer edge position of the bottom of the blade 4. A stubble breaker 2 is provided on the blade reinforcing rib 1. The stubble breaker 2 includes a stubble breaker reinforcing rib 201, a stubble breaker base 202, a fixing hole one 203, and a fixing hole two 204. The stubble breaker base 202 is a stepped bent plate. One side of the stepped bent plate is a horizontal plane 202-1, and fixing hole 203 and fixing hole two 204 are provided on the horizontal plane 202-1. Bolts pass through the fixing hole 203 and the fixing hole two 204 to connect and fix the stubble breaker base 202 to the blade reinforcing rib 1. The other side of the stepped bent plate is a bent surface 202-2, and the bent surface 202-2 extends downward toward the outside. A stubble breaker reinforcing rib 201 is provided on the bent surface 202-2 of the stubble breaker base 202.
[0017] The bent surface 202-2 of the stubble breaker base 202 is composed of an inclined surface 202-2-1 and a flat surface 202-2-2 that are connected to each other. The stubble breaker reinforcing rib 201 includes two parts, namely a trapezoidal reinforcing rib 201-1 and a rectangular reinforcing rib 201-2. The hypotenuse of the trapezoidal reinforcing rib 201-1 is vertically welded to the inclined surface 202-2-1, and the rectangular reinforcing rib 201-2 is vertically welded to the flat surface 202-2-2. The trapezoidal reinforcing rib 201-1 and the rectangular reinforcing rib 201-2 are of an integral structure.
[0018] Both ends of the stubble breaker reinforcing rib 201 are located at opposite corners of the bent surface 202-2 of the stubble breaker base 202.
[0019] A dividing fork guide disc 7 is provided below the blade 4. The dividing fork guide disc 7 is welded to the dividing fork round tube 6. There is a gap between the bottom of the blade 4 and the dividing fork guide disc 7, and the height of this gap is greater than the height of the stubble breaker 2. When the blade 4 rotates, the stubble breaker 2 on the blade reinforcing rib 1 passes through this gap without affecting the operation of other components.
[0020] Combined with the attached Figure 1 In this embodiment, the cutting table is powered by a silage harvester locomotive, and the power is transmitted to the blade 4 through the roller gearbox 3. The blade reinforcing rib 1 is arc-shaped, and two blade reinforcing ribs 1 are symmetrically fixed to the outer edges on both sides of the bottom of the blade 4. The stubble breaker 2 is fixedly installed on both blade reinforcing ribs 1. During operation, the blade 4 will rotate with these components. After the blade 4 cuts the straw, it is conveyed to the subsequent chopping device, and the residual straw on the ground is crushed by the stubble breaker 2. The dividing fork guide disc 7 is welded to the dividing fork round tube 6, and the dividing fork round tube 6 is installed on the dividing fork fixing seat 5. There is a gap between the blade 4 and the dividing fork guide disc 7. Weeds are likely to be entangled in the gap and at the connection between the dividing fork round tube 6 and the dividing fork guide disc 7 during harvesting. At this time, the stubble breaker 2 can remove them when rotating.
[0021] Combined with the attached Figure 2 The stubble breaker reinforcing rib 201 is welded on the stubble breaker base 202 and fixed to the blade reinforcing rib 1 and the blade 4 through the first fixing hole 203 and the second fixing hole 204, which increases the structural strength and is not easily deformed. The diameter of the second fixing hole 204 is smaller than that of the first fixing hole 203, and the diameter of the required fixing bolt is also smaller. In the harsh field environment, if the stubble breaker 2 cuts into a hard object, the side near the second fixing hole 204 will contact the hard object first. The advantage of the design with different hole diameters is that: since the diameter of the bolt is small, its shear strength is not as large as that of the bolt required for the first fixing hole 203. In an emergency, the bolt in the second fixing hole 204 is broken to ensure that the blade 4 does not deform.
Claims
1. A stubble-breaking device for a header of a forage harvester, comprising two blade reinforcing ribs (1) symmetrically arranged at the outer edge position of the bottom of the blade (4), characterized in that: A stubble breaker (2) is provided on the blade reinforcing rib (1). The stubble breaker (2) includes a stubble breaker reinforcing rib (201), a stubble breaker base (202), a first fixing hole (203), and a second fixing hole (204). The stubble breaker base (202) is a stepped bent plate. One side of the stepped bent plate is a horizontal plane (202-1), and the first fixing hole (203) and the second fixing hole (204) are provided on the horizontal plane (202-1). Bolts pass through the first fixing hole (203) and the second fixing hole (204) to connect and fix the stubble breaker base (202) to the blade reinforcing rib (1). The other side of the stepped bent plate is a bent surface (202-2), and the bent surface (202-2) extends downward toward the outside. The stubble breaker reinforcing rib (201) is provided on the bent surface (202-2) of the stubble breaker base (202).
2. The stubble-breaking device of a forage harvester header according to claim 1, characterized in that: The bent surface (202-2) of the stubble breaker base (202) is composed of an inclined surface (202-2-1) and a flat surface (202-2-2) connected to each other. The stubble breaker reinforcing rib (201) includes two parts, namely a trapezoidal reinforcing rib (201-1) and a rectangular reinforcing rib (201-2). The hypotenuse of the trapezoidal reinforcing rib (201-1) is vertically welded to the inclined surface (202-2-1), and the rectangular reinforcing rib (201-2) is vertically welded to the flat surface (202-2-2).
3. The stubble-breaking device of a silage harvester header according to claim 2, characterized in that: Both ends of the stubble breaker reinforcing rib (201) are located at opposite corners of the bent surface (202-2) of the stubble breaker base (202).
4. A stubble-breaking device for a forage harvester cutter bar according to claim 1 or 2, characterized in that: The blade reinforcing rib (1) is arc-shaped and is fixed to the outer edge position at the bottom of the blade (4) by bolts.
5. The stubble-breaking device of a silage harvester header according to claim 1 or 2, characterized in that: A dividing fork guide disc (7) is provided below the (4). The dividing fork guide disc (7) is welded to the dividing fork round tube (6). There is a gap between the bottom of the blade (4) and the dividing fork guide disc (7), and the height of this gap is greater than the height of the stubble breaker (2). When the blade (4) rotates, the stubble breaker (2) on the blade reinforcing rib (1) passes through this gap.