A wheat straw pulverizer

Abstract

The present application belongs to the technical field of straw crushing, and particularly relates to a wheat straw crusher, which comprises a box body, a feeding port arranged at the upper end of the box body, a discharging port arranged at the bottom of the box body, and a crushing mechanism arranged at the middle of the box body. The crushing mechanism comprises two rotating rollers rotatably arranged at the middle of the box body, the two rotating rollers are horizontally distributed, the rotating rollers are provided with a plurality of uniformly distributed cutting blades, the front and rear ends of the rotating rollers penetrate through the box body and are connected with discs, the sidewalls of the two discs on the front side are provided with a plurality of circumferentially distributed transmission teeth, a first gear is rotatably arranged on the front side of the box body, the first gear is engaged with one of the transmission teeth, the first gear is engaged with the other transmission tooth through an idler gear, a motor is installed on the front side of the box body, and the output shaft of the motor is drivingly connected with the first gear. The present application automatically drives the scraper to clean the rotating rollers by utilizing the weight change of the receiving box, effectively prevents the winding of the straw, reduces the need for cleaning during shutdown, and improves the continuous operation capacity and maintenance convenience of the equipment.

Description

Technical Field

[0001] This invention belongs to the field of straw crushing technology, specifically relating to a wheat straw crusher. Background Technology

[0002] When processing wheat straw, it is often necessary to pre-crush it to facilitate further processing. A straw crusher is a machine used to process materials such as straw and plant branches. The straw and other materials are placed inside the crusher, and rotating rollers drive the blades to crush them into fine particles for later use or processing. Straw with higher moisture content is more flexible and easily gets tangled on the crusher's rotating rollers during crushing, making subsequent cleaning difficult. Summary of the Invention

[0003] The purpose of this invention is to provide a wheat straw crusher to solve the problems mentioned in the background art.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0005] A wheat straw crusher includes a housing, with a feed inlet at the top and a discharge outlet at the bottom, and a crushing mechanism in the middle.

[0006] The crushing mechanism includes two rotating rollers rotatably mounted in the middle of the housing. The two rotating rollers are horizontally distributed and each roller is equipped with several evenly distributed cutting blades. Both ends of the rotating rollers are connected to discs that penetrate the housing. The two discs on the front side are provided with several circumferentially distributed transmission teeth. A first gear is rotatably mounted on the front side of the housing. The first gear meshes with one of the transmission teeth and meshes with the other transmission tooth through an idler gear. A motor is installed on the front side of the housing, and the output shaft of the motor is connected to the first gear.

[0007] The transmission roller is equipped with a cleaning assembly, which includes several through holes in the disc. Each of the through holes has a sliding rod slidably installed in it. One end of the sliding rod extends into the housing and is connected to a scraper. The scraper is located between two cutting blades and abuts against the transmission roller. The other ends of the sliding rods are connected to a movable disc, which is equipped with a moving component.

[0008] The lower side of the box is provided with a receiving assembly, which includes a receiving box slidably disposed inside the box. Fixing strips are fixed on the left and right sides of the box and located on the upper side of the receiving box. The fixing strips are made of iron. Vertical rods are fixed on the upper ends of both sides of the receiving box. The upper ends of the vertical rods slide through the fixing strips and connect to limit blocks. A first spring is provided between the limit blocks and the fixing strips. A magnet is fixed on the upper end of the receiving box and located below the fixing strips. A baffle is provided at the bottom of the receiving box via a rotating shaft. The baffle is provided with a flipping assembly.

[0009] The flipping assembly includes a cavity at the bottom of the receiving box, a rotating shaft extending into the cavity and connected to a second gear, a rack slidably fitted in the cavity and meshing with the second gear, a second spring provided between the rack and the side wall of the cavity, a push rod connected to the end of the rack, a boss provided on the side wall of the box, a bevel machined at the bottom of the boss, and the push rod slid out of the cavity and abuts against the boss.

[0010] The moving component includes a hinge rod hinged to the side wall of the receiving box, the box body has a movement groove that matches the hinge rod, the movable plate is rotatably mounted with a connecting seat, and the upper end of the hinge rod is hinged to the lower side of the connecting seat.

[0011] The bottom of the box is equipped with four rectangular support feet.

[0012] This invention achieves efficient crushing of wheat straw through two relatively rotating rollers and evenly distributed cutting blades. A cleaning component is designed to automatically drive the scraper to clean the rotating rollers by utilizing the weight change of the receiving box, effectively preventing straw entanglement, reducing the need for downtime for cleaning, and improving the continuous operation capability and maintenance convenience of the equipment.

[0013] The material receiving box of this invention combines the design of magnets and springs to achieve intermittent quantitative discharge of straw, avoiding the splashing of straw during the crushing process. At the same time, quantitative discharge facilitates subsequent baling processing and improves the automation and standardization of the overall operation process. Attached Figure Description

[0014] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of a wheat straw crusher according to the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic cross-sectional view of an embodiment of a wheat straw crusher according to the present invention. Figure 1 ;

[0017] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0018] Figure 4 This is a schematic cross-sectional view of an embodiment of a wheat straw crusher according to the present invention. Figure 2 ;

[0019] Figure 5 for Figure 4 Enlarged structural diagram at point B;

[0020] Figure 6 This is a schematic diagram of the receiving box of the present invention;

[0021] Figure 7 This is a schematic diagram of the structure of an embodiment of a wheat straw crusher according to the present invention. Figure 2 .

[0022] The symbols for the main components are explained below:

[0023] Box 1, Inlet 11, Outlet 12, Support foot 13, Rotating roller 2, Cutting blade 21, Disc 22, First gear 23, Motor 24, Through hole 3, Slide rod 31, Scraper 32, Movable disc 33, Receiving box 4, Fixing strip 41, Vertical rod 42, Limiting block 43, First spring 44, Magnet 45, Baffle 46, Cavity 461, Second gear 462, Rack 463, Second spring 464, Push rod 465, Boss 466, Hinge rod 5, Motion groove 51, Connecting seat 52. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] like Figure 1-7 As shown, a wheat straw crusher of the present invention includes a box 1, a feed inlet 11 at the upper end of the box 1, a discharge outlet 12 at the bottom of the box 1, and a crushing mechanism in the middle of the box 1.

[0026] The crushing mechanism includes two rotating rollers 2 rotatably mounted in the middle of the housing 1. The two rotating rollers 2 are horizontally distributed and each rotating roller 2 is provided with several evenly distributed cutting blades 21. Both ends of the rotating roller 2 are connected to discs 22 through the housing 1. The side walls of the two discs 22 on the front side are provided with several circumferentially distributed transmission teeth. A first gear 23 is rotatably mounted on the front side of the housing 1. The first gear 23 meshes with one of the transmission teeth and meshes with the other transmission tooth through an idler gear. A motor 24 is installed on the front side of the housing 1, and the output shaft of the motor 24 is connected to the first gear 23 for transmission.

[0027] The drive roller 2 is equipped with a cleaning assembly, which includes several through holes 3 opened in the disc 22. Each of the several through holes 3 is slidably provided with a slide rod 31. One end of the slide rod 31 extends into the housing 1 and is connected to a scraper 32. The scraper 32 is located between two cutting blades 21 and abuts against the drive roller 2. The other end of the several slide rods 31 is connected to a movable disc 33. The movable disc 33 is provided with a moving component.

[0028] The lower side of the box 1 is provided with a receiving assembly, which includes a receiving box 4 that is slidably disposed inside the box 1. Fixing strips 41 are fixed on the left and right sides of the box 1 and located on the upper side of the receiving box 4. The fixing strips 41 are made of iron. Vertical rods 42 are fixed on the upper ends of both sides of the receiving box 4. The upper ends of the vertical rods 42 slide through the fixing strips 41 and are connected to limit blocks 43. A first spring 44 is provided between the limit blocks 43 and the fixing strips 41. A magnet 45 located below the fixing strips 41 is fixed on the upper end of the receiving box 4. A baffle 46 is provided at the bottom of the receiving box 4 via a rotating shaft. The baffle 46 is provided with a flipping assembly.

[0029] The flipping assembly includes a cavity 461 at the bottom of the receiving box 4, a rotating shaft extending into the cavity 461 and connected to a second gear 462, a rack 463 slidably mounted in the cavity 461 and meshing with the second gear 462, a second spring 464 between the rack 463 and the side wall of the cavity 461, a push rod 465 connected to the end of the rack 463, a boss 466 on the side wall of the box 1, a beveled surface machined at the bottom of the boss 466, and the push rod 465 slid out of the cavity 461 and abuts against the boss 466.

[0030] The movable component includes a hinge rod 5 hinged to the side wall of the receiving box 4, a movement groove 51 that matches the hinge rod 5 in the box body 1, and a connecting seat 52 rotatably mounted on the movable plate 33. The upper end of the hinge rod 5 is hinged to the lower side of the connecting seat 52.

[0031] The bottom of the box 1 is provided with four rectangular support feet 13.

[0032] In the initial state, the magnet 45 at the upper end of the receiving box 4 is attracted to the lower side of the fixing strip 41. At this time, the end of the push rod 465 abuts against the boss 466, the baffle 46 is in a horizontal state and seals the bottom of the receiving box 4, while the movable plate 33 is away from the box 1. At this time, the scraper 32 is at the edge of the rotating roller 2.

[0033] When in use, the motor 24 is started, and the output shaft of the motor 24 drives the first gear 23 to rotate. It rotates by meshing with the transmission teeth of one of the discs 22. The idler wheel drives the other disc to rotate in the opposite direction, so that the two discs 22 rotate relative to each other. That is, the two rotating rollers 2 rotate relative to each other inside the box 1. The workers put wheat straw into the box 1 through the feed port 11 between the two rotating rollers 2. The wheat straw is crushed by several cutting blades 21 on the rotating rollers 2. The crushed straw falls down into the receiving box 4 for collection.

[0034] As the amount of straw inside the receiving box 4 increases, the overall weight of the receiving box 4 will also increase. When the weight of the receiving box 4 exceeds the attractive force of the magnet 45, the magnet 45 will disengage from the fixing strip 41, causing the receiving box 4 to slide rapidly downward relative to the box body 1 under its own weight. The push rod 465 slides downward as a whole. After moving to the inclined surface of the boss 466, the elastic force of the second spring 464 will push the rack 463 to move, causing the push rod 465 to slide and abut against the inclined surface of the boss 466. In this way, the rack 463... During the movement of 63, the second gear 462 can be driven to rotate, and the baffle 46 will be flipped downward through the rotating shaft. The straw inside the receiving box 4 will flow downward and be discharged. After the straw is discharged from the receiving box 4, its weight is less than the rebound force of the second spring 464. The elastic force of the second spring 464 will push the receiving box 4 to move upward and reset until the magnet 45 is attracted to the fixing strip 41 again. Therefore, intermittent discharge can be achieved to avoid the straw from splashing when crushing. At the same time, quantitative discharge can facilitate the baling of straw.

[0035] During the downward movement of the receiving box 4, the connecting seat 52 can be pulled by the hinge rod 52, which pushes the movable plate 33 towards the box 1. The scraper 32 is pushed along the rotating roller 2 by the slide rod 31 to cut the straw wrapped around the surface of the rotating roller 2. During the upward movement of the receiving box 4, the connecting seat 52 can be pushed back to its original position by the hinge rod 52, which drives the scraper 32 to move to the edge of the rotating roller 2. In this way, every time the receiving box 4 moves downward to discharge material, the scraper 32 can clean the rotating roller 2 once without additional power, avoiding the problem of straw being wrapped around the rotating roller 2 and making it difficult to clean later.

[0036] During the rotation of the rotating roller 2, it can drive the disc 22 and the slide bar 31 to rotate synchronously. That is, the scraper 32 will also rotate synchronously with the rotating roller 2. Therefore, during the cleaning process of the scraper 32 on the rotating roller 2, there is no need to stop the rotating roller 2, so there is no need to stop the machine and improve the processing efficiency.

[0037] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A wheat straw crusher, comprising a housing, wherein a feed inlet is provided at the upper end of the housing and a discharge outlet is provided at the bottom of the housing, characterized in that: A crushing mechanism is provided in the middle of the box; The crushing mechanism includes two rotating rollers rotatably mounted in the middle of the housing. The two rotating rollers are horizontally distributed and each roller is equipped with several evenly distributed cutting blades. Both ends of the rotating rollers are connected to discs that penetrate the housing. The two discs on the front side are provided with several circumferentially distributed transmission teeth. A first gear is rotatably mounted on the front side of the housing. The first gear meshes with one of the transmission teeth and meshes with the other transmission tooth through an idler gear. A motor is installed on the front side of the housing, and the output shaft of the motor is connected to the first gear. The rotating roller is equipped with a cleaning assembly, which includes several through holes in the disc. Each of the several through holes has a sliding rod slidably installed in it. One end of the sliding rod extends into the housing and is connected to a scraper. The scraper is located between two cutting blades and abuts against the rotating roller. The other ends of the several sliding rods are connected to a movable disc, which is equipped with a moving component. The lower side of the box is provided with a receiving assembly, which includes a receiving box slidably disposed inside the box. Fixing strips are fixed on the left and right sides of the box and located on the upper side of the receiving box. The fixing strips are made of iron. Vertical rods are fixed on the upper ends of both sides of the receiving box. The upper ends of the vertical rods slide through the fixing strips and connect to limit blocks. A first spring is provided between the limit blocks and the fixing strips. A magnet is fixed on the upper end of the receiving box and located below the fixing strips. A baffle is provided at the bottom of the receiving box via a rotating shaft. The baffle is provided with a flipping assembly. The moving component includes a hinge rod hinged to the side wall of the receiving box, the box body has a movement groove that matches the hinge rod, the movable plate is rotatably mounted with a connecting seat, and the upper end of the hinge rod is hinged to the lower side of the connecting seat.

2. The wheat straw crusher according to claim 1, characterized in that: The flipping assembly includes a cavity at the bottom of the receiving box, a rotating shaft extending into the cavity and connected to a second gear, a rack slidably fitted in the cavity and meshing with the second gear, a second spring provided between the rack and the side wall of the cavity, a push rod connected to the end of the rack, a boss provided on the side wall of the box, a bevel machined at the bottom of the boss, and the push rod slid out of the cavity and abuts against the boss.

3. The wheat straw crusher according to claim 1, characterized in that: The bottom of the box is equipped with four rectangular support feet.

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