Straw pretreatment device
By designing a straw pretreatment device, which utilizes components such as electric push rod cutting, filter screen filtration, crushing shaft crushing, and dispersing shaft filtration, the problem of stones and soil mixing into straw is solved, achieving convenient straw treatment and equipment protection.
Patent Information
- Application Number
- CN202520643859.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-04-08
AI Technical Summary
In existing straw pretreatment processes, straw may be mixed with stones and soil, affecting subsequent processing and damaging equipment.
A straw pretreatment device was designed, comprising a protective shell, a servo motor, a crushing shaft, a feed channel, a filter screen, a cutter, and other components. The straw is cut by an electric push rod and a cutter, the filter screen filters out stones and soil, the crushing shaft crushes the straw, and the straw is further dispersed and filtered by a dispersing shaft and a filter frame. The collection channel collects impurities, and the collection box collects the treated straw.
It effectively removes stones and soil from straw, protects equipment, simplifies subsequent processing procedures, and reduces the labor intensity of staff.
Smart Images
Figure CN223968311U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of straw pretreatment, and in particular to a straw pretreatment device. Background Technology
[0002] Straw refers to the remaining stems and leaves of crops after harvest, commonly found in crops such as rice, wheat, and corn. It is mainly composed of cellulose, hemicellulose, and lignin, and has multiple uses. Returning straw to the field increases the organic matter content of the soil and improves soil structure; properly treated straw can also be used as livestock feed; furthermore, straw is an important raw material for producing biomass fuels; it can be used as fuel for power generation or heating; and straw can also be used to produce pulp, manufacture fiberboard, and sound insulation materials. Existing pretreatment methods typically involve chopping and then crushing the straw to facilitate subsequent operations. However, during collection, straw may become mixed with stones and soil, which not only affects subsequent processing but may also damage processing equipment.
[0003] To address the aforementioned issues and ensure that subsequent processing procedures are not affected, a straw pretreatment device needs to be designed. Utility Model Content
[0004] To overcome the drawback that straw may be mixed with stones and soil, this utility model provides a straw pretreatment device.
[0005] The technical solution is as follows: A straw pretreatment device includes a protective shell, a servo motor, crushing shafts, first support rods, a feed channel, a first filter screen, a first elastic element, a connecting piece, an electric push rod, a cutter, a push frame, a limiting block, and a second elastic element. A servo motor is fixedly connected to the middle of the protective shell. A feed inlet is provided on the upper left side of the protective shell. Two crushing shafts are rotatably connected to the middle of the protective shell, and the two crushing shafts mesh with each other. The output shaft of the servo motor is fixedly connected to the left crushing shaft. Four first support rods are fixedly connected to the left side of the protective shell. A feed channel is slidably connected between the tops of the four first support rods. The right side of the feed channel is directly opposite the upper left side of the protective shell. The feed inlet is slidably connected to the protective shell, and the feed channel is in a left-high-right-low state. A first filter screen is provided on the feed channel. Each first support rod is fixedly connected to the feed channel with a first elastic element. A connector is fixedly connected to the top of the protective shell. An electric push rod is fixedly connected to the bottom left side of the connector. A cutter is fixedly connected to the output shaft of the electric push rod. A cut is opened on the feed channel, and the cut is located directly below the cutter. Push frames are symmetrically fixedly connected to the front and rear sides of the connector. Limit blocks are symmetrically slidably connected to the front and rear sides of the feed channel. A second elastic element is fixedly connected to the limit block and the feed channel. The front side of the limit block is obliquely cut, and the oblique cut surface is located directly below the push frame.
[0006] Furthermore, it also includes a collection channel and a second support rod. The collection channel is fixedly connected to the left side of the protective shell, and the collection channel is in a state of left-low and right-high. The second support rod is fixedly connected to the bottom of the collection channel.
[0007] Furthermore, it also includes a dispersing shaft and a first pulley assembly. The dispersing shaft is rotatably connected to the upper part of the protective shell, and the first pulley assembly is fixedly connected to the front side of the dispersing shaft and the front side of the left crushing shaft.
[0008] Furthermore, it also includes a second filter screen and a third elastic element. The second filter screen is slidably connected to the lower part of the protective shell, and the third elastic element is fixedly connected between the second filter screen and the protective shell.
[0009] Furthermore, it also includes a stop block, a second pulley assembly, and a filter frame. The stop block is rotatably connected to the middle of the protective shell. The second pulley assembly is fixedly connected between the front side of the stop block and the right-side crushing shaft. The filter frame is slidably connected to the middle of the protective shell. The filter frame is located directly above the second filter screen. The stop block abuts against the front top of the filter frame.
[0010] Furthermore, it also includes guide blocks, with guide blocks fixedly connected to the left and right sides of the upper part of the protective shell, and the guide blocks are located between the dispersing shaft and the crushing shaft.
[0011] Furthermore, it also includes a collection box, which is slidably connected to the lower part of the protective shell.
[0012] The beneficial effects are as follows: 1. This utility model cuts the straw by the cooperation of an electric push rod and a cutter, then filters out the stones and soil mixed in with the straw by the cooperation of the feed channel and the first filter screen, and finally crushes the straw by the crushing shaft, making the subsequent processing process more convenient.
[0013] 2. This utility model disperses and filters straw by cooperating with the dispersing shaft, the abutment block, and the filter frame, making subsequent processing more convenient.
[0014] 3. This utility model uses a collection channel to collect stones and soil mixed in with straw, which facilitates subsequent processing.
[0015] 4. This utility model uses a collection box to collect the processed straw, making it easier for workers. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the components of this utility model, including the first support rod, the material passage, and the first filter screen.
[0017] Figure 2 This is a three-dimensional structural diagram of the components of this utility model, including the electric push rod, cutter, and push frame.
[0018] Figure 3This is a three-dimensional structural diagram of the frame, limiting block, and second elastic element of this utility model.
[0019] Figure 4 This is a three-dimensional structural diagram of the first pulley assembly, the second pulley assembly, and the filter frame of this utility model.
[0020] Figure 5 This is a three-dimensional cross-sectional view of the components of the present invention, including the first pulley assembly, the abutment block, and the second pulley assembly.
[0021] Figure 6 This is a three-dimensional structural diagram of the dispersion shaft, the first pulley assembly, and the abutment block of this utility model.
[0022] Figure 7 This is an exploded perspective view of the second filter screen, the third elastic element, and the filter frame of this utility model.
[0023] Component names and numbers in the diagram: 1-Protective shell, 2-Servo motor, 3-Crushing shaft, 4-First support rod, 5-Feed passage, 6-First filter screen, 7-First elastic element, 8-Collection passage, 9-Second support rod, 10-Connector, 11-Electric push rod, 12-Cutter, 13-Push frame, 14-Limit block, 15-Second elastic element, 16-Dispersion shaft, 17-First pulley assembly, 18-Abutting block, 19-Second pulley assembly, 20-Second filter screen, 21-Third elastic element, 22-Filter frame, 23-Collection box, 24-Guide block. Detailed Implementation
[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings.
[0025] Example: A straw pretreatment device, such as Figures 1-6As shown, the device includes a protective shell 1, a servo motor 2, a crushing shaft 3, a first support rod 4, a feed channel 5, a first filter screen 6, a first elastic element 7, a connector 10, an electric push rod 11, a cutter 12, a push frame 13, a limit block 14, and a second elastic element 15. The servo motor 2 is bolted to the middle of the protective shell 1. A feed inlet is located on the upper left side of the protective shell 1. Two crushing shafts 3 are rotatably connected to the middle of the protective shell 1, and the two crushing shafts 3 mesh with each other. The output shaft of the servo motor 2 is fixedly connected to the left crushing shaft 3. Four first support rods 4 are fixedly connected to the left side of the protective shell 1. A feed channel 5 is slidably connected between the tops of the four first support rods 4. The right side of the feed channel 5 is directly opposite the feed inlet on the upper left side of the protective shell 1 and is connected to the protective shell. 1. A sliding connection is made, and the material passage 5 is in a state of left high and right low. A first filter screen 6 is provided on the material passage 5. A first elastic element 7 is fixedly connected between each first support rod 4 and the material passage 5. A connector 10 is welded to the top of the protective shell 1. An electric push rod 11 is bolted to the bottom left side of the connector 10. A cutter 12 is fixedly connected to the output shaft of the electric push rod 11. A cut is opened on the material passage 5. The cut is located directly below the cutter 12. A push frame 13 is symmetrically fixedly connected to the front and rear sides of the connector 10. A limit block 14 is symmetrically slidably connected to the front and rear sides of the material passage 5. A second elastic element 15 is fixedly connected between the limit block 14 and the material passage 5. The front side of the limit block 14 is obliquely cut, and the oblique cut surface is located directly below the push frame 13.
[0026] like Figure 1 As shown, it also includes a collection channel 8 and a second support rod 9. The collection channel 8 is welded to the left side of the protective shell 1, and the collection channel 8 is in a state of left-low and right-high. The second support rod 9 is fixedly connected to the bottom of the collection channel 8.
[0027] like Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, it also includes a dispersing shaft 16 and a first pulley group 17. The dispersing shaft 16 is rotatably connected to the upper part of the protective shell 1, and the first pulley group 17 is fixedly connected to the front side of the dispersing shaft 16 and the front side of the left crushing shaft 3.
[0028] like Figure 5 and Figure 7 As shown, it also includes a second filter screen 20 and a third elastic element 21. The second filter screen 20 is slidably connected to the lower part of the protective shell 1, and the third elastic element 21 is fixedly connected between the second filter screen 20 and the protective shell 1.
[0029] like Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, it also includes a stop block 18, a second pulley set 19 and a filter frame 22. The stop block 18 is rotatably connected to the middle of the protective shell 1. The second pulley set 19 is fixedly connected between the front side of the stop block 18 and the right side crushing shaft 3. The filter frame 22 is slidably connected to the middle of the protective shell 1. The filter frame 22 is located directly above the second filter screen 20. The stop block 18 abuts against the front top of the filter frame 22.
[0030] like Figure 5 As shown, it also includes a guide block 24. The guide block 24 is fixedly connected to the left and right sides of the upper part of the protective shell 1. The guide block 24 is located between the dispersing shaft 16 and the crushing shaft 3, which restricts the dispersed straw from falling onto the crushing shaft 3.
[0031] like Figure 1 , Figure 4 , Figure 5 and Figure 7 As shown, it also includes a collection box 23, which is slidably connected to the lower part of the protective shell 1.
[0032] When pretreatment of straw is required, the electric push rod 11 is started first. The electric push rod 11 drives the cutter 12 to move up and down. While the cutter 12 moves downward, the pusher 13 moves towards the center end by contacting the limiting blocks 14 on the front and rear sides. When the cutter 12 moves upward, the limiting blocks 14 move away from the center end and reset due to the action of the second elastic element 15. Because the feed channel 5 is affected by the action of the first elastic element 7, and then by the gravity of the straw, the straw and the feed channel 5 can vibrate up and down to a certain extent. This design allows the cutter 12 to cut the straw thoroughly. Then the servo motor 2 is started. The servo motor 2 drives the crushing shaft 3 to rotate. At the same time, the first pulley group 17 and the second pulley group 19 drive the dispersing shaft 16 and the abutment block 18 to rotate. While the abutment block 18 rotates, the abutment block 18 contacts the filter frame 22. Due to the action of the third elastic element 21, the second filter screen 20 and the filter frame 22 move up and down.
[0033] The straw is fed into the feed channel 5 from the left side. Because the feed channel 5 is sloping from left to right, the straw slides from left to right towards the feed inlet of the protective shell 1. The stones and soil inside the straw fall into the collection channel 8 through the first filter screen 6. The workers place the container on the lower left side of the collection channel 8 to collect the straw for easy subsequent processing. At the same time, the cutter 12 cuts the straw. Finally, the straw is placed in the protective shell 1 and then dispersed by the dispersing shaft 16. Because there is a guide block 24 between the dispersing shaft 16 and the crushing shaft 3, the dispersed straw falls onto the crushing shaft 3 and then passes through the crushing shaft. 3. Crush the straw, and then filter out the straw that is not fully crushed through the filtration effect of the filter frame 22 and the second filter screen 20 and vibration. Finally, the crushed straw falls into the collection box 23. After processing a certain amount of straw, pull the filter frame 22 forward, and then collect and process the straw that is not fully crushed. After processing, put the filter frame 22 back in its original position, then take out the collection box 23 forward, take out the processed straw, and then put the collection box 23 back. If the straw needs to be pre-treated, repeat the above operation.
[0034] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.
Claims
1. A straw pretreatment device, comprising a protective shell (1), a servo motor (2), and a crushing shaft (3), wherein the servo motor (2) is fixedly connected to the middle of the protective shell (1), a feed inlet is provided on the upper left side of the protective shell (1), and two crushing shafts (3) are rotatably connected to the middle of the protective shell (1), the two crushing shafts (3) meshing with each other, and the output shaft of the servo motor (2) is fixedly connected to the left crushing shaft (3), characterized in that: It also includes first support rod (4), pass way (5), first filter screen (6), first elastic member (7), connecting piece (10), electric push rod (11), cutter (12), push frame (13), limiting block (14) and second elastic member (15), the left side of protective shell (1) is fixedly connected with four first support rods (4), the top of four first support rods (4) is slidably connected with pass way (5), the right side of pass way (5) is opposite to the feed inlet of the left upper portion of protective shell (1) and is slidably connected with protective shell (1), and pass way (5) is left high right low state, pass way (5) is equipped with first filter screen (6), first elastic member (7) is fixedly connected between each first support rod (4) and pass way (5), the top of protective shell (1) is fixedly connected with connecting piece (10), the bottom of the left side of connecting piece (10) is fixedly connected with electric push rod (11), the output shaft of electric push rod (11) is fixedly connected with cutter (12), the cutout is formed in pass way (5), the cutout is located directly below cutter (12), push frame (13) is fixedly connected on the front and back sides of connecting piece (10) symmetrically, limiting block (14) is slidably connected on the front and back sides of pass way (5) symmetrically, second elastic member (15) is fixedly connected between limiting block (14) and pass way (5), the front side of limiting block (14) is bevelled, and the bevelled surface is located directly below push frame (13).
2. The device for pre-treatment of straw according to claim 1, characterized in that: It also includes collecting channel (8) and second support rod (9), the left side of protective shell (1) is fixedly connected with collecting channel (8), and collecting channel (8) is left low right high state, the bottom of collecting channel (8) is fixedly connected with second support rod (9).
3. The device for pre-treatment of straw according to claim 2, characterized in that: It also includes dispersion shaft (16) and first pulley set (17), the upper portion of protective shell (1) is rotatably connected with dispersion shaft (16), and the front side and the left side of dispersion shaft (16) are fixedly connected with first pulley set (17).
4. The device for pre-treatment of straw according to claim 3, characterized in that: It also includes second filter screen (20) and third elastic member (21), the middle and lower portions of protective shell (1) are slidably connected with second filter screen (20), and third elastic member (21) is fixedly connected between second filter screen (20) and protective shell (1).
5. The device for pre-treatment of straw according to claim 4, characterized in that: It also includes resisting block (18), second pulley set (19) and filter frame (22), the middle portion of protective shell (1) is rotatably connected with resisting block (18), the front side of resisting block (18) and the right side of the pulverizer shaft (3) are fixedly connected with second pulley set (19), and the middle portion of protective shell (1) is slidably connected with filter frame (22), and filter frame (22) is located directly above second filter screen (20), and the top front side of resisting block (18) and filter frame (22) abut.
6. The device for pre-treatment of straw according to claim 5, characterized in that: It also includes guide block (24), the upper portion of protective shell (1) is fixedly connected with guide block (24) on the left and right sides, and guide block (24) is located between dispersion shaft (16) and pulverizer shaft (3).
7. The device for pre-treatment of straw according to claim 6, characterized in that: It also includes collecting box (23), and the lower portion of protective shell (1) is slidably connected with collecting box (23).