Double-shaft grass chopper

Abstract

The utility model provides a double-shaft grass chopper, and relates to the technical field of agricultural machinery. The crushing bin is arranged at the lower end of the feeding hopper, is hollow and is provided with a crushing assembly, a motor is arranged on the outer wall of one side of the crushing bin, and a protective shell is arranged on the other side; the supporting frame is arranged at the bottom of the crushing bin, a rectangular through hole is formed in the middle of the supporting frame and communicates with the crushing bin, a discharging opening is formed in the bottom of the rectangular through hole, and supporting legs are arranged at the bottoms of the four corners of the rectangular through hole; and the material conveying structure is arranged at the lower end of the supporting frame. The crusher has the advantages that the crushing efficiency is improved, and blockage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a double-shaft grass chopper. Background Art

[0002] The double-shaft grass shredder is an agricultural machinery mainly used for crushing biomass materials such as crop straw, peanut vines, sweet potato vines, weeds, etc. for subsequent processing and utilization. The materials are shredded by two rotating knife shafts and discharged through the discharge port. The double-shaft grass shredder has the advantages of high crushing efficiency, wide application range, and simple operation. It has been widely used in agricultural production. However, the current double-shaft grass shredder has materials accumulated at the feed port during the crushing process or the double-shaft knife rollers are entangled by weeds during long-term operation, resulting in low crushing efficiency and equipment damage. Utility Model Content

[0003] The utility model aims to provide a double-shaft grass chopper, which solves the technical problems of low crushing efficiency and easy blockage in the prior art, and achieves the technical effects of improving crushing efficiency and reducing blockage.

[0004] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is:

[0005] A double-shaft grass chopper comprises: a feed hopper; a crushing bin, which is arranged at the lower end of the feed hopper and is hollow inside and provided with a crushing assembly, a motor is provided on the outer wall on one side thereof, and a protective shell is provided on the other side thereof; a support frame, which is arranged at the bottom of the crushing bin and has a rectangular through hole in the middle, the rectangular through hole is connected to the crushing bin, a discharge port is provided at the bottom of the rectangular through hole, and support legs are provided at the bottom of its four corners; a material transport structure is arranged at the lower end of the support frame.

[0006] As an improvement, the crushing assembly includes: a main cutter shaft, whose outer surface is equidistantly provided with blades, one end of which passes through the crushing chamber and is connected to the motor, and the other end passes through the other side of the crushing chamber and is rotatably connected to the protective shell; an auxiliary cutter shaft, which is arranged on one side of the main cutter shaft, has blades on its outer surface, and is staggered with the blades on the main cutter shaft, one end of which is rotatably connected to the inner wall of the crushing chamber, and the other end passes through the crushing chamber and is rotatably connected to the protective shell; a driving gear, which is sleeved on one end of the main cutter shaft located in the protective shell, and a driven gear, which is sleeved on one end of the auxiliary cutter shaft located in the protective shell, rotates in the opposite direction to the driving gear, and meshes with each other, and a limit sleeve is provided on the side away from the driving gear.

[0007] As an improvement, the material transport structure includes: a conveyor belt, which is provided below the discharge port and is placed at an angle for transporting crushed materials, with a first connecting plate and a second connecting plate on both sides; a drive motor, which is provided at the bottom of the first connecting plate, and the bottom of the drive motor is connected to the moving wheel.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] The utility model arranges a crushing component, during the crushing process, the wheat straw enters the crushing bin from the feed hopper, and because the main blade shaft and the auxiliary blade shaft rotate in opposite directions, the wheat straw is crushed by the rotation of the main blade shaft and the auxiliary blade shaft, and the crushed material enters the conveyor belt through the discharge port and leaves the discharge port, reducing the blockage of the discharge port caused by excessive material accumulation. Compared with the traditional double-axis grass breakers, the utility model has the beneficial effects of improving the crushing efficiency and reducing the blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional diagram of a double-axle lawn mower;

[0011] Figure 2 A stereoscopic image of a double-axle lawn mower from another perspective;

[0012] Figure 3 It is a partial stereogram of the crushing component;

[0013] Figure 4 It is a partial stereogram of the crushing component;

[0014] Figure 5 It is a three-dimensional diagram of the material transport structure;

[0015] In the figure: 1. Crushing bin; 2. Feed hopper; 3. Motor; 4. Protective shell; 5. Support frame; 6. Material transport structure; 601. First connecting plate; 602. Conveyor belt; 603. Second connecting plate; 604. Driving motor; 3. Discharge port; 4. Moving wheel; 9. Crushing assembly; 901. Main knife shaft; 902. Secondary knife shaft; 903. Blade; 904. Limiting sleeve; 905. Driving gear; 906. Driven gear. DETAILED DESCRIPTION

[0016] In order to make the content of the utility model easier to understand, the technical solutions in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model. The same parts are represented by the same figure marks. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0017] like Figure 1-5As shown, a double-shaft grass shredder comprises: a feed hopper 2, which is 1.5 meters long, 1 meter wide and 0.63 meters high; the crushing bin 1 is arranged at the lower end of the feed hopper 2, and is hollow inside and provided with a crushing assembly 9, the crushing assembly 9 comprises: a main cutter shaft 901, with blades 903 equidistantly arranged on the outer surface, one end of which passes through the crushing bin 1 and is connected to the motor 3, and the other end passes through the other side of the crushing bin 1 and is rotatably connected to the protective shell 4; an auxiliary cutter shaft 902, which is arranged on one side of the main cutter shaft 901, with blades 903 arranged on the outer surface, and The blades 903 on the main blade shaft 901 are staggered, one end of which is rotatably connected to the inner wall of the crushing chamber 1, and the other end penetrates the crushing chamber 1 and is rotatably connected to the protective shell 4; the driving gear 905 is sleeved on the end of the main blade shaft 901 located in the protective shell 4, and the driven gear 906 is sleeved on the end of the auxiliary blade shaft 902 located in the protective shell 4, and rotates in the opposite direction to the driving gear 905 and meshes with each other. A limit sleeve 904 is provided on the side away from the driving gear 905, a motor 3 is provided on the outer wall of one side, and a protective The protective shell 4; the support frame 5 is arranged at the bottom of the crushing bin 1, and a rectangular through hole is opened in the middle position, the rectangular through hole is connected to the crushing bin 1, and a discharge port 7 is arranged at the bottom of the rectangular through hole, and support legs are arranged at the bottom of the four corners; the material transport structure 6 is arranged at the lower end of the support frame 5, and the material transport structure 6 includes: a conveyor belt 602, which is arranged below the discharge port 7 and is placed obliquely for transporting crushed materials, and a first connecting plate 601 and a second connecting plate 603 are arranged on both sides, and a driving motor 604 is arranged at the The bottom of the first connecting plate 601 and the bottom of the driving motor 604 are connected to the moving wheel 8. When in use, the main blade shaft 901 and the auxiliary blade shaft 902 are installed in the crushing bin 1, the position of the blade 903 is adjusted, the main blade shaft 901 is connected to the motor 3, and the operator puts the straw into the feed hopper 2. The straw moves downward through the crushing and squeezing of the main blade shaft 901 and the auxiliary blade shaft 902. The crushed material falls onto the conveyor belt 602 through the discharge port 7, and the crushed material is brought into the pre-designed discharge port through the conveyor belt 602.

[0018] The above description is only a preferred embodiment of the present utility model patent and is not intended to limit the present utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model patent shall be included in the protection scope of the present utility model patent.

Claims

1. A double-shaft grass chopper, characterized in that: include: Feed hopper (2); A crushing chamber (1) is arranged at the lower end of the feed hopper (2), is hollow inside and is provided with a crushing assembly (9), has a motor (3) on one side of the outer wall, and has a protective shell (4) on the other side; A support frame (5) is arranged at the bottom of the crushing bin (1), with a rectangular through hole in the middle, the rectangular through hole is connected to the crushing bin (1), a discharge port (7) is arranged at the bottom of the rectangular through hole, and support legs are arranged at the bottom of the four corners; A material transport structure (6) is arranged at the lower end of the support frame (5); The crushing assembly (9) comprises: The main blade shaft (901) has blades (903) equidistantly arranged on its outer surface, one end of which passes through the crushing chamber (1) and is connected to the motor (3), and the other end of which passes through the other side of the crushing chamber (1) and is rotatably connected to the protective shell (4); The auxiliary blade shaft (902) is arranged on one side of the main blade shaft (901), and has a blade (903) on its outer surface, and is arranged alternately with the blade (903) on the main blade shaft (901), one end of which is rotatably connected to the inner wall of the crushing chamber (1), and the other end of which penetrates the crushing chamber (1) and is rotatably connected to the protective shell (4); The driving gear (905) is sleeved on one end of the main blade shaft (901) located inside the protective shell (4). The driven gear (906) is sleeved on one end of the auxiliary blade shaft (902) located in the protective shell (4), rotates in the opposite direction to the driving gear (905), and meshes with each other. A limiting sleeve (904) is provided on the side away from the driving gear (905).

2. A double-shaft grass shredder according to claim 1, characterized in that: The material transport structure (6) comprises: A conveyor belt (602) is provided below the discharge port (7) and is placed obliquely for transporting crushed materials, and has a first connecting plate (601) and a second connecting plate (603) on both sides; A driving motor (604) is arranged at the bottom of the first connecting plate (601), and the bottom of the driving motor (604) is connected to the moving wheel (8).

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