Straw high-efficiency crushing device
By combining the conveying mechanism and the cutting blade, the problems of uneven straw feeding and incomplete cutting are solved, achieving efficient straw crushing and improving the overall efficiency and effectiveness of straw processing.
Patent Information
- Application Number
- CN202521128157.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-12
- Estimated Expiration
- 2035-06-04
AI Technical Summary
Existing straw crushing devices are inefficient during the feeding process, the straw cannot enter the equipment evenly, and they lack effective cutting functions, resulting in low crushing efficiency.
The system employs a conveying mechanism to achieve efficient straw feeding, uses a cutting blade to continuously cut the straw, and utilizes a crushing roller for efficient crushing. Combined with an extrusion plate and a synchronization mechanism, it ensures the stability of straw conveying and the accuracy of the cutting blade.
It significantly improves the efficiency and effectiveness of straw processing, ensures that the straw is of suitable length, facilitates crushing, and improves feeding stability and crushing efficiency.
Smart Images

Figure CN224343881U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crushing equipment technology, and in particular to a high-efficiency straw crushing device. Background Technology
[0002] In agricultural production, straw disposal has always been an important issue. Crushing straw to make it more suitable for use in fertilizer production, feed processing, and other fields is an effective way to improve straw utilization.
[0003] Currently, existing straw crushing devices often suffer from low feeding efficiency and uneven straw entry into the crushing equipment during the straw feeding process, resulting in low crushing efficiency. At the same time, they lack effective cutting functions during the initial processing of straw, resulting in longer straw lengths entering the crushing equipment, which increases the crushing difficulty and reduces the crushing effect. Therefore, we propose a high-efficiency straw crushing device to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a high-efficiency straw crushing device, which achieves efficient straw feeding through a conveying mechanism, continuously cuts the straw with a cutting blade, and efficiently crushes the straw with the help of a crushing roller, significantly improving the straw processing efficiency and effect.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a high-efficiency straw crushing device, comprising a crushing box, a feeding hole at the top of the crushing box, a feeding guide hopper installed inside the crushing box, two crushing rollers for crushing straw rotatably installed inside the crushing box, and a discharge hole on one side inner wall of the crushing box; a conveying shell for feeding straw is fixedly installed at the top of the crushing box, a conveying mechanism for conveying straw is provided inside the conveying shell, a discharge hole is opened on the bottom inner wall of the conveying shell, and the discharge hole is located directly above the feeding hole; a housing is fixedly installed at the top of the conveying shell, a lifting seat is slidably installed inside the housing, and a cutting blade for cutting straw is fixedly installed at the bottom of the lifting seat.
[0006] By adopting the above technical solution, the straw is efficiently fed through the conveying mechanism, the straw is continuously cut by the cutting blade, and the straw is efficiently crushed by the crushing roller, which significantly improves the straw processing efficiency and effect.
[0007] A further feature of this invention is that the conveying mechanism includes a rotating shaft, a rotating roller, a conveyor belt, and extrusion plates. Two rotating shafts are rotatably mounted on the front and rear inner walls of the conveying shell. A rotating roller is fixedly mounted on the rotating shaft. The same conveyor belt is driven and sleeved on the two rotating rollers. Multiple extrusion plates for compressing straw are installed at equal intervals on the conveyor belt.
[0008] By adopting the above technical solution, multiple extrusion plates can effectively compress the straw. In conjunction with the rotation of the conveyor belt, the straw can be stably and efficiently transported to the feed hole, avoiding slippage and deviation of the straw during the transportation process, and greatly improving the stability and efficiency of feeding.
[0009] A further feature of this invention is that a drive motor is fixedly installed on the front side of the conveying shell, and the output shaft of the drive motor is fixedly connected to the corresponding rotating shaft.
[0010] By adopting the above technical solution, the drive motor can directly provide stable power to the rotating shaft, enabling the rotating shaft to drive the rotating roller and conveyor belt to operate precisely, ensuring efficient and stable power transmission of the conveying mechanism and ensuring the continuity of the straw conveying process.
[0011] A further feature of this invention is that: limit grooves are provided on both inner walls of the housing, limit seats are fixedly installed on both sides of the lifting seat, and the limit seats are slidably connected to the corresponding limit grooves; multiple return springs are fixedly installed at the bottom of the lifting seat, and the bottom ends of the return springs are fixedly installed on the top inner wall of the conveying housing.
[0012] By adopting the above technical solution, the cooperation between the limiting groove and the limiting seat can effectively restrict the movement path of the lifting seat, so that it can only make up-down linear movements, ensuring the accuracy of the cutting blade movement; at the same time, the return spring can make the lifting seat quickly return to its original position after the cam is squeezed, realizing the rapid reciprocating motion of the cutting blade, improving the efficiency and continuity of straw cutting.
[0013] A further feature of this invention is that the same drive shaft is rotatably mounted on the inner walls of the front and rear sides of the housing, and multiple cams that contact the lifting seat are fixedly mounted on the drive shaft, and a synchronization mechanism is provided between the drive shaft and the corresponding rotating shaft.
[0014] By adopting the above technical solution, the synchronization mechanism enables the transmission shaft and the rotating shaft to rotate synchronously, thereby driving the cam to periodically squeeze the lifting seat, realizing the synchronous action of the cutting blade and the straw conveying, ensuring that the cutting operation can be carried out in a timely and accurate manner during the straw conveying process, and improving the overall work efficiency.
[0015] A further feature of this invention is that the synchronization mechanism includes pulleys and a belt, pulleys are installed at the rear ends of both the transmission shaft and the rotating shaft, and the same belt is provided between the two pulleys for transmission.
[0016] By adopting the above technical solution, the synchronous mechanism composed of pulleys and belts has a simple structure and low cost. It can effectively realize the power transmission and synchronous rotation between the drive shaft and the rotating shaft, ensuring that the cutting action of the cutting blade matches the straw conveying speed, thus improving the operational stability and reliability of the device.
[0017] A further feature of this invention is that: multiple support legs are installed at equal intervals at the bottom of the crushing box, and a guide seat is installed on the inner wall of the bottom of the crushing box, the guide seat being adapted to the discharge hole; a control box is installed on the rear side of the crushing box, and a drive assembly for rotating the crushing roller is provided inside the control box.
[0018] By adopting the above technical solutions, the support legs can provide stable support for the crushing box, ensuring the stability of the device during operation; the guide seat can guide the crushed straw to flow smoothly to the discharge hole, avoiding the accumulation of straw in the crushing box and improving the discharge efficiency; the drive component can provide stable power to the crushing roller, ensuring that the crushing roller crushes the straw efficiently.
[0019] A further feature of this invention is that a controller is installed on the front side of the crushing box, and the drive motor and drive components are electrically connected to the controller.
[0020] By adopting the above technical solution, operators can conveniently control the start, stop and operating parameters of the drive motor and drive components through the controller, thereby achieving precise control of the straw conveying, cutting and crushing process, and improving the automation level and ease of operation of the device.
[0021] The beneficial effects of this utility model are:
[0022] High-efficiency feeding: When crushing straw, the controller starts the drive motor, which drives the rotating shaft and rollers to rotate, which in turn drives the conveyor belt and extrusion plate to rotate. When one end of the straw is put into the conveyor shell, the extrusion plate squeezes the straw downward and conveys it towards the feed hole, realizing a convenient and efficient feeding process and greatly improving crushing efficiency.
[0023] Continuous cutting: With the cooperation of pulleys and belts, the rotating shaft drives the transmission shaft to rotate, which in turn drives the cam to rotate. The cam presses downward against the lifting seat, causing the lifting seat to move the cutting blade downward to cut the straw. Each rotation of the cam causes the return spring to push the lifting seat and cutting blade up and down repeatedly, achieving continuous cutting of the straw and ensuring that the straw entering the crushing box is of appropriate length for easy crushing.
[0024] High-efficiency crushing: The chopped straw enters the crushing box through the feed hole. The crushing roller rotates under the drive of the drive component to crush the straw efficiently. The crushed straw is discharged through the discharge hole. The whole process is continuous and efficient, which significantly improves the straw crushing effect. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This is a three-dimensional structural diagram of a high-efficiency straw crushing device according to the present invention;
[0027] Figure 2 This is a cross-sectional three-dimensional structural diagram of a high-efficiency straw crushing device according to the present invention;
[0028] Figure 3 This is a rear-view perspective view of a high-efficiency straw crushing device according to this utility model;
[0029] Figure 4 This is a schematic diagram of the structure A of a high-efficiency straw crushing device according to this utility model.
[0030] In the diagram, 101 is the crushing box; 102 is the guide hopper; 103 is the crushing roller; 104 is the feed hole; 105 is the discharge hole; 106 is the guide seat; 107 is the support leg; 201 is the conveyor shell; 202 is the rotating shaft; 203 is the rotating roller; 204 is the conveyor belt; 205 is the extrusion plate; 206 is the discharge hole; 301 is the shell; 302 is the lifting seat; 303 is the cutting blade; 304 is the return spring; 401 is the drive shaft; 402 is the cam; 501 is the pulley; 502 is the belt; and 503 is the drive motor. Detailed Implementation
[0031] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0032] When a component is described as being "set on" another component, it can be directly on the other component or it can be in an intervening component. "Set on" indicates a mode of existence, which can be a connection, installation, fixed connection, active connection, etc. When a component is described as being "connected" to another component, it can be directly connected to the other component or it may be in an intervening component.
[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0034] See Figures 1-4 This utility model provides a high-efficiency straw crushing device, including a crushing box 101, a feeding hole 104 on the top of the crushing box 101, a feeding guide hopper installed inside the crushing box 101, two crushing rollers 103 for crushing straw rotatably installed inside the crushing box 101, and a discharge hole 105 on one side inner wall of the crushing box 101; a conveying shell 201 for feeding straw is fixedly installed on the top of the crushing box 101, a conveying mechanism for conveying straw is provided inside the conveying shell 201, a discharge hole 206 is opened on the bottom inner wall of the conveying shell 201, and the discharge hole 206 is located directly above the feeding hole 104; a housing 301 is fixedly installed on the top of the conveying shell 201, a lifting seat 302 is slidably installed inside the housing 301, and a cutting blade 303 for cutting straw is fixedly installed at the bottom of the lifting seat 302.
[0035] Specifically, the conveying mechanism includes a rotating shaft 202, a rotating roller 203, a conveyor belt 204, and an extrusion plate 205. Two rotating shafts 202 are rotatably mounted on the front and rear inner walls of the conveying shell 201. A rotating roller 203 is fixedly mounted on the rotating shaft 202. The same conveyor belt 204 is driven and sleeved on the two rotating rollers 203. Multiple extrusion plates 205 for straw compaction are installed at equal intervals on the conveyor belt 204.
[0036] Specifically, a drive motor 503 is fixedly installed on the front side of the conveyor housing 201, and the output shaft of the drive motor 503 is fixedly connected to the corresponding rotating shaft 202.
[0037] Specifically, limit grooves are provided on both inner walls of the housing 301, and limit seats are fixedly installed on both sides of the lifting seat 302. The limit seats are slidably connected to the corresponding limit grooves. Multiple return springs 304 are fixedly installed at the bottom of the lifting seat 302, and the bottom ends of the return springs 304 are fixedly installed on the top inner wall of the conveying housing 201.
[0038] Specifically, the same drive shaft 401 is rotatably mounted on the front and rear inner walls of the housing 301. Multiple cams 402 that contact the lifting seat 302 are fixedly mounted on the drive shaft 401. A synchronization mechanism is provided between the drive shaft 401 and the corresponding rotating shaft 202. The synchronization mechanism includes pulleys 501 and belts 502. The rear ends of both the drive shaft 401 and the rotating shaft 202 are equipped with pulleys 501, and the same belt 502 is provided between the two pulleys 501.
[0039] Specifically, multiple support legs 107 are installed at equal intervals at the bottom of the crushing box 101, and a guide seat 106 is installed on the inner wall of the bottom of the crushing box 101, which is adapted to the discharge hole 105.
[0040] Specifically, a control box is installed on the rear side of the crushing box 101, and a drive assembly for rotating the crushing roller 103 is provided inside the control box. A controller is installed on the front side of the crushing box 101, and the drive motor 503 and the drive assembly are electrically connected to the controller.
[0041] Working Principle: When crushing straw, the controller activates the drive assembly, which rotates the crushing roller 103. Simultaneously, the controller also activates the drive motor 503, which, through its output shaft, drives the rotating shaft 202 and the rotating roller 203. The rotation of the rotating roller 203 drives the conveyor belt 204 and the extrusion plate 205. When one end of the straw is placed into the conveyor housing 201, the extrusion plate 205 presses the straw downwards. The rotation of the extrusion plate 205 conveys the straw towards the feed hole 104, thus facilitating straw feeding. Efficient feeding improves crushing efficiency. Through the cooperation of the pulley 501 and the belt 502, the rotating shaft 202... The rotation of the cam 402 causes the drive shaft 401 to rotate, which in turn causes the cam 402 to rotate. The rotation of the cam 402 causes the lifting seat 302 to move downward, compressing the return spring 304. The lifting seat 302 causes the cutting blade 303 to move downward and cut the straw. When the cam 402 rotates once, the return spring 304 pushes the lifting seat 302 and the cutting blade 303 to move up and down reciprocally. The reciprocating movement of the cutting blade 303 enables continuous cutting of the straw. The cut straw enters the crushing box 101 through the feed hole 104. The rotation of the crushing roller 103 enables efficient crushing of the cut straw. The crushed straw is discharged through the discharge hole 105.
[0042] The above provides a detailed description of the high-efficiency straw crushing device provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A high-efficiency straw crushing device, characterized in that, The device includes a crushing box (101), a feed hole (104) on the top of the crushing box (101), a feed guide hopper (102) installed inside the crushing box (101), two crushing rollers (103) for crushing straw rotatably installed inside the crushing box (101), and a discharge hole (105) on one side of the inner wall of the crushing box (101). The top of the crushing box (101) is fixedly installed with a conveying shell (201) for feeding straw. The conveying shell (201) is provided with a conveying mechanism for conveying straw. The bottom inner wall of the conveying shell (201) is provided with a discharge hole (206), and the discharge hole (206) is located directly above the feed hole (104). The top of the conveying shell (201) is fixedly installed with a housing (301), and a lifting seat (302) is slidably installed inside the housing (301). A cutting blade (303) for cutting straw is fixedly installed at the bottom of the lifting seat (302).
2. The high-efficiency straw crushing device according to claim 1, characterized in that: The conveying mechanism includes a rotating shaft (202), a rotating roller (203), a conveyor belt (204), and an extrusion plate (205). Two rotating shafts (202) are rotatably installed on the front and rear inner walls of the conveying shell (201). A rotating roller (203) is fixedly installed on the rotating shaft (202). The same conveyor belt (204) is driven on the two rotating rollers (203). Multiple extrusion plates (205) for straw compaction are installed at equal intervals on the conveyor belt (204).
3. The high-efficiency straw crushing device according to claim 1, characterized in that: A drive motor (503) is fixedly installed on the front side of the conveying shell (201), and the output shaft of the drive motor (503) is fixedly connected to the corresponding rotating shaft (202).
4. The high-efficiency straw crushing device according to claim 1, characterized in that: Limiting grooves are provided on both inner walls of the housing (301), and limiting seats are fixedly installed on both sides of the lifting seat (302), with the limiting seats slidingly connected to the corresponding limiting grooves.
5. The high-efficiency straw crushing device according to claim 4, characterized in that: The bottom of the lifting seat (302) is fixedly installed with multiple return springs (304), and the bottom end of the return springs (304) is fixedly installed on the top inner wall of the conveying shell (201).
6. The high-efficiency straw crushing device according to claim 1, characterized in that: The same drive shaft (401) is rotatably mounted on the inner walls of the front and rear sides of the housing (301). Multiple cams (402) that contact the lifting seat (302) are fixedly mounted on the drive shaft (401), and a synchronization mechanism is provided between the drive shaft (401) and the corresponding rotating shaft (202).
7. The high-efficiency straw crushing device according to claim 6, characterized in that: The synchronization mechanism includes pulleys (501) and belts (502). The rear ends of the drive shaft (401) and the rotating shaft (202) are both equipped with pulleys (501), and the two pulleys (501) are connected by the same belt (502).
8. The high-efficiency straw crushing device according to claim 1, characterized in that: The bottom of the crushing box (101) is equipped with multiple support legs (107) at equal intervals, and a guide seat (106) is installed on the inner wall of the bottom of the crushing box (101), which is adapted to the discharge hole (105).
9. The high-efficiency straw crushing device according to claim 1, characterized in that: A control box is installed on the rear side of the crushing box (101), and the control box contains a drive assembly for rotating the crushing roller (103).
10. The high-efficiency straw crushing device according to claim 1, characterized in that: A controller is installed on the front side of the crushing box (101), and the drive motor (503) and drive components are electrically connected to the controller.
