Straw smashing device for biofuel preparation
By using a chain drive system driven by dual motors and a conveyor belt to transport straw, combined with crushing rollers and cutters, the problem of low efficiency and manual feeding in existing straw crushing devices has been solved, achieving efficient straw crushing and continuous production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN HENGSHENG XINGWANG BIOTECH
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-24
AI Technical Summary
Existing straw crushing equipment has low crushing efficiency, making it difficult to meet the needs of large-scale biofuel production. It also requires manual feeding, which reduces production continuity and consumes a lot of manpower.
The system employs a dual-motor driven chain transmission system, which transports straw via a conveyor belt and crushes it using crushing rollers and crushing blades, simplifying the feeding process and improving crushing efficiency.
With its simple structure and convenient operation, it improves the efficiency of straw crushing, reduces the workload of workers, and enables continuous production.
Smart Images

Figure CN224154742U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of straw crushing technology, and in particular to a straw crushing device for biofuel preparation. Background Technology
[0002] With the increasing global demand for clean energy, biofuels, as a renewable energy source, have received widespread attention. Straw, as a crucial raw material for biofuels, requires careful crushing as a key step in the biofuel production process. Existing straw crushing devices have several shortcomings in practical use. Some devices have low crushing efficiency, making it difficult to meet the needs of large-scale biofuel production. Furthermore, the straw feeding process requires manual operation, reducing production continuity and consuming significant manpower, thus lowering the crushing efficiency. Therefore, we propose a straw crushing device for biofuel production. Utility Model Content
[0003] To address the aforementioned problems, this invention provides a straw crushing device for biofuel production. This invention solves some shortcomings of existing straw crushing devices in practical use. Some crushing devices have low crushing efficiency, making it difficult to meet the needs of large-scale biofuel production. Furthermore, the straw feeding process requires manual loading by workers, reducing production continuity and consuming significant manpower, thus lowering the straw crushing efficiency.
[0004] This utility model discloses a straw crushing device for biofuel preparation, comprising a first support frame, a crushing trough located at the upper center of the first support frame, a first motor fixedly mounted on one side of the crushing trough, the first motor's rotating shaft passing through the crushing trough and fixedly connected to a crushing roller shaft, a plurality of crushing blades arranged in a matrix on the crushing roller shaft, a guide trough located above the crushing trough, a second support frame located on one side of the first support frame, a mounting frame located at the upper end of the second support frame, a second motor fixedly mounted on the mounting frame, a first sprocket located on the rotating shaft of the second motor, a drive roller shaft located at the upper end of the second support frame, a second sprocket matching the first sprocket on the drive roller shaft, the first sprocket and the second sprocket being connected by chain drive, a driven roller shaft located at the lower end of the second support frame, the drive roller shaft and the driven roller shaft being connected by conveyor belt drive.
[0005] In the above scheme, the second support frame is inclined upward.
[0006] In the above scheme, the conveyor belt is provided with multiple push plates arranged at equal intervals.
[0007] In the above scheme, the second support frame is provided with baffles on both sides and below the conveyor belt.
[0008] In the above scheme, a feed trough is provided above the guide trough.
[0009] The advantages and beneficial effects of this utility model are as follows: This utility model provides a straw crushing device for biofuel preparation. When the second motor is working, it drives the first sprocket to rotate. Through chain transmission, the second sprocket drives the driven roller shaft to rotate. Through the interaction between the driving and driven roller shafts, the conveyor belt can transport the straw to be crushed. The straw transported by the conveyor belt enters the guide trough through the feed chute. The first motor drives the crushing roller shaft to rotate. Through the transmission of the rotating crushing roller shaft, the crushing blade also rotates, and the rotating crushing blade can crush the straw. This crushing device has a simple structure, is easy to operate, facilitates feeding, has a good crushing effect, reduces the workload of workers, and effectively improves the crushing efficiency of straw. Attached Figure Description
[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a partial sectional view of the present invention;
[0013] Figure 3 This is a schematic diagram of part A of the present invention.
[0014] In the figure: 1. First support frame; 2. Crushing trough; 3. First motor; 4. Crushing roller shaft; 5. Crushing cutter head; 6. Second support frame; 7. Mounting frame; 8. Second motor; 9. First sprocket; 10. Driven roller shaft; 11. Second sprocket; 12. Chain; 13. Driven roller shaft; 14. Conveyor belt; 15. Push plate; 16. Baffle; 17. Guide trough; 18. Feed trough. Detailed Implementation
[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0016] like Figure 1-3As shown, this utility model is a straw crushing device for biofuel preparation, including a first support frame 1. A crushing trough 2 is provided in the upper middle part of the first support frame 1. A first motor 3 is fixedly installed on one side of the crushing trough 2. The rotating shaft of the first motor 3 passes through the crushing trough 2 and is fixedly connected to a crushing roller shaft 4. The two ends of the crushing roller shaft 4 are movably connected to the inner wall of the crushing trough 2. The crushing roller shaft 4 is provided with a plurality of crushing blades 5 arranged in a matrix. When the first motor 3 is working, the first motor 3 drives the crushing roller shaft 4 to rotate. Through the transmission of the rotating crushing roller shaft 4, the crushing blades 5 also rotate. The rotating crushing blades 5 can crush the straw. A guide trough 17 is provided above the crushing trough 2. A second support frame 6 is provided on one side of the first support frame 1. A mounting frame 7 is provided on the upper end of the second support frame 6. A mounting bracket is fixed on the mounting bracket 7. The device is equipped with a second motor 8, on which a first sprocket 9 is mounted. A drive roller 10 is mounted on the upper end of a second support frame 6, and a second sprocket 11 matching the first sprocket 9 is mounted on the drive roller 10. The first sprocket 9 and the second sprocket 11 are connected by a chain 12. A driven roller 13 is mounted on the lower end of the second support frame 6. Both ends of the drive roller 10 and the driven roller 13 are movably connected to the second support frame 6. Both the drive roller 10 and the driven roller 13 are connected by a conveyor belt 14. When the second motor 8 is working, it drives the first sprocket 9 to rotate. Through the transmission of the chain 12, the second sprocket 11 can drive the driven roller 13 to rotate. Through the mutual matching between the drive roller 10 and the driven roller 13, the conveyor belt 14 can transport the straw to be crushed.
[0017] The second support frame 6 is tilted upwards.
[0018] The conveyor belt 14 is provided with multiple push plates 15 arranged at equal intervals. The straw is conveyed on the conveyor belt 14, and the push plates 15 can limit the straw on the conveyor belt 14 to prevent the straw from rolling on the conveyor belt 14.
[0019] The second support frame 6 is provided with baffles 16 on both sides and below the conveyor belt 14. The baffles 16 can limit the movement of the conveyor belt 14 on both sides, preventing the straw from falling off the conveyor belt 14.
[0020] The feed trough 18 is provided above the feed trough 17, and the straw driven by the conveyor belt 14 can enter the feed trough 17 through the feed trough 18.
[0021] Specifically, in this utility model, when the second motor 8 is working, it drives the first sprocket 9 to rotate. Through the transmission of the chain 12, the second sprocket 11 can drive the driven roller shaft 13 to rotate. Through the mutual coordination between the driving roller shaft 10 and the driven roller shaft 13, the conveyor belt 14 can transport the straw to be crushed. The straw transported by the conveyor belt 14 can enter the guide trough 17 through the feed trough 18. When the first motor 3 is working, it drives the crushing roller shaft 4 to rotate. Through the transmission of the rotating crushing roller shaft 4, the crushing head 5 also rotates. The rotating crushing head 5 can crush the straw. The push plate 15 can limit the straw on the conveyor belt 14 to prevent the straw from rolling on the conveyor belt 14. The baffle 16 can limit the two sides of the conveyor belt 14 to prevent the straw from falling off the conveyor belt 14.
[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A straw crushing device for biofuel preparation, comprising a first support frame (1), characterized in that, A crushing trough (2) is provided in the middle of the upper part of the first support frame (1). A first motor (3) is fixedly installed on one side of the crushing trough (2). The rotating shaft of the first motor (3) passes through the crushing trough (2) and is fixedly connected to the crushing roller shaft (4). A plurality of crushing blades (5) are arranged in a matrix on the crushing roller shaft (4). A guide trough (17) is provided above the crushing trough (2). A second support frame (6) is provided on one side of the first support frame (1). A mounting frame (7) is provided at the upper end of the second support frame (6). A fixed plate is installed on the mounting frame (7). A second motor (8) is installed, and a first sprocket (9) is provided on the rotating shaft of the second motor (8). An active roller shaft (10) is provided at the upper end of the second support frame (6). A second sprocket (11) matching the first sprocket (9) is provided on the active roller shaft (10). The first sprocket (9) and the second sprocket (11) are connected by a chain (12). A driven roller shaft (13) is provided at the lower end of the second support frame (6). The active roller shaft (10) and the driven roller shaft (13) are connected by a transmission belt (14).
2. The straw crushing device for biofuel preparation according to claim 1, characterized in that, The second support frame (6) is inclined upward.
3. The straw crushing device for biofuel preparation according to claim 1, characterized in that, The conveyor belt (14) is provided with multiple push plates (15) arranged at equal intervals.
4. The straw crushing device for biofuel preparation according to claim 1, characterized in that, The second support frame (6) is provided with baffles (16) on both sides and below the conveyor belt (14).
5. The straw crushing device for biofuel preparation according to claim 1, characterized in that, A feed trough (18) is provided above the feed trough (17).