A straw crusher

Abstract

The utility model provides a straw crusher, which belongs to the technical field of crushers, and includes a frame, a crushing chamber and a support frame arranged on the frame, and a motor is installed on the upper end of the frame. In the utility model, mutually meshing driving gears arranged at both ends of the crushing rollers reverse the crushing rollers, so that the straw between the crushing rollers is subjected to a greater shear force so that it can be crushed better, and the scraper plate arranged cooperates with the crushing roller to continuously re-crush the insufficiently crushed straw staying on the screen plate while crushing, until the crushed straw can fall through the screen plate, further improving the screening effect, and the screen plate cooperates with the adjusting block below to continuously vibrate up and down, so that the straw above the screen plate is vibrated and separated, and part of the straw is prevented from clogging the holes on the screen, and the flow effect of the straw is improved during the vibration process so that qualified straw can be quickly discharged, thereby improving the discharge speed of the entire device.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, and in particular to a straw crusher. Background Art

[0002] The straw crusher can crush corn stalks, straw, peanut skins, bean stalks, firewood and other combustible crop waste stalks, avoiding the wasteful burning of these crop straws, protecting the environment well, and effectively developing renewable energy. The crushed debris can be used to make organic fertilizer and used as feed for poultry in farms.

[0003] In the prior art, common straw crushers can only crush straw once at a time. Although most straw is crushed sufficiently, some straw is not crushed completely. Incomplete crushing of straw may cause blockage during the feeding process. In addition, insufficiently crushed straw will affect the quality of raw materials produced later. How to invent a straw crusher to improve these problems has become an urgent problem to be solved by technicians in this field. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a straw crusher, which aims to improve the problem of incomplete crushing of common straw crushers.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a straw crusher, comprising a frame, a crushing chamber and a support frame arranged on the frame, and a motor is installed on the upper end of the frame;

[0007] The outer wall of the crushing chamber is fixedly connected to the inner wall of the frame, a loading port is provided at the upper end of the crushing chamber, a feeding pipe is installed at the lower end of the crushing chamber, a mounting groove is provided at the inner wall of one end of the crushing chamber, an annular groove is provided at the inner wall of the crushing chamber on one side close to the mounting groove, a rotating groove is provided at the inner wall of the annular groove, two symmetrical crushing rollers are installed inside the crushing chamber, one end of the two crushing rollers is fixedly connected to a driving gear, the outer wall of one of the crushing rollers is fixedly connected to a driving gear rotatably connected to the inner wall of the mounting groove, a screening port is provided at the lower end of the crushing chamber, and a screen plate is installed on the inner wall of the screening port;

[0008] A fixing rod rotatably connected to the inner wall of the rotating groove is fixedly connected to one side of the support frame, and an inner gear ring rotatably connected to the inner wall of the ring groove is fixedly connected to one end of the fixing rod. A plurality of springs are provided on the inner wall of the support frame, and a scraper plate is provided at one end of the spring.

[0009] Preferably, the motor is fixedly connected to one end of one of the crushing rollers, both ends of the crushing roller are rotatably connected to the inner wall of the crushing chamber, and the two driving gears are meshingly connected.

[0010] Preferably, the other end of the fixing rod is rotatably connected to the inner wall of the pulverizing chamber, and the inner wall of the inner gear ring is meshingly connected to the driving gear.

[0011] Preferably, the side walls at both ends of the spring are fixedly connected to the inner wall of the support frame and the outer wall of the scraper plate respectively, and the outer wall of the scraper plate is slidably connected to the inner wall of the support frame.

[0012] By adopting the above technical scheme, while the straw is crushed by the crushing roller, the scraper plate arranged on the inner wall of the crushing chamber continuously rotates to lift the straw remaining on the screen plate, so that the straw falls from the top to the crushing roller below to be crushed again, and this process is repeated until the crushed straw particles can fall through the screen plate into the discharge pipe below to be collected, so that the straw can be fully crushed and the crushing effect is improved.

[0013] Preferably, the inner walls on both sides of the screening opening are provided with adjustment grooves, and the outer walls on both sides of the screening plate are fixedly connected with sliders which are slidably connected to the inner walls of the adjustment grooves.

[0014] Preferably, the discharge pipe is rotatably connected to the lower inner wall of the sieve plate with two symmetrical fixed shafts, and the outer walls at both ends of the fixed shafts are fixedly connected with adjustment blocks, and the adjustment blocks are provided with multiple protrusions, and the protrusions on the adjustment blocks are slidably abutted against the bottom end of the sieve plate.

[0015] Preferably, one end of the fixed shaft is fixedly connected to a third pulley, and a second belt is transmission-connected between two of the third pulleys.

[0016] Preferably, one end of one of the fixed shafts is fixedly connected to a second pulley, one end of one of the crushing rollers is fixedly connected to a first pulley, and a first belt drivingly connected to the second pulley is installed on the first pulley.

[0017] By adopting the above technical scheme, the fixed shaft arranged inside the feeding pipe rotates simultaneously while the straw is crushed. During the rotation, the protrusions on the adjusting blocks at both ends continuously slide and lift the screen plate and then drop it, so that the screen plate slides up and down reciprocatingly to generate vibration, thereby preventing the screen plate from being blocked by the straw, improving the screening effect and accelerating the rate of straw feeding.

[0018] The beneficial effects of the utility model are:

[0019] The mutually meshing driving gears arranged at both ends of the crushing rollers reverse the rotation between the crushing rollers, so that the straw between the crushing rollers is subjected to greater shear force, which makes it better crushed and improves the crushing effect. At the same time, the scraper plates cooperate with the crushing rollers to continuously re-crush the insufficiently crushed straw remaining on the screen plate while crushing, until the crushed straw can fall through the screen plate, further improving the screening effect. During the operation of the device, the screen plate cooperates with the adjusting block below to continuously vibrate up and down, so that the straw above the screen plate is vibrated and separated to prevent part of the straw from clogging the holes on the screen. At the same time, the flow effect of the straw is improved during the vibration process so that qualified straw can be quickly discharged, thereby improving the discharge speed of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a front structural schematic diagram of a straw crusher provided by the embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the side structure of a straw crusher provided by the embodiment of the utility model;

[0023] Figure 3 This is a cross-sectional view of the structure of a straw crusher provided by the embodiment of the utility model;

[0024] Figure 4 This is a half-section diagram of the structure of a straw crusher provided by the embodiment of the utility model;

[0025] Figure 5 The utility model provides a straw crusher Figure 4 A magnified view of the structure of the middle A area;

[0026] Figure 6 This is a side sectional view of a straw crusher structure provided by an embodiment of the utility model;

[0027] Figure 7 The utility model provides a straw crusher Figure 6 A magnified view of the structure of region B.

[0028] In the figure: 1. frame; 2. motor; 3. crushing chamber; 4. loading port; 5. unloading pipe; 6. mounting groove; 7. ring groove; 8. rotating groove; 9. crushing roller; 10. driving gear; 11. driving gear; 12. first pulley; 13. screening port; 14. adjusting groove; 15. sieve plate; 16. slider; 17. fixed shaft; 18. adjusting block; 19. second pulley; 20. first belt; 21. third pulley; 22. second belt; 23. inner gear ring; 24. fixing rod; 25. supporting frame; 26. spring; 27. scraper plate. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example, see Figure 1-Figure 7 A straw crusher comprises a frame 1, a crushing chamber 3 and a support frame 25 arranged on the frame 1, and a motor 2 is installed on the upper end of the frame 1;

[0031] The outer wall of the crushing chamber 3 is fixedly connected to the inner wall of the frame 1, a loading port 4 is provided at the upper end of the crushing chamber 3, a feeding pipe 5 is installed at the lower end of the crushing chamber 3, a mounting groove 6 is provided at the inner wall of one end of the crushing chamber 3, an annular groove 7 is provided at the inner wall of the crushing chamber 3 on the side close to the mounting groove 6, a rotating groove 8 is provided at the inner wall of the annular groove 7, two symmetrical crushing rollers 9 are installed inside the crushing chamber 3, one end of the two crushing rollers 9 is fixedly connected to a driving gear 10, the outer wall of one of the crushing rollers 9 is fixedly connected to a driving gear 11 that is rotatably connected to the inner wall of the mounting groove 6, a screening port 13 is provided at the lower end of the crushing chamber 3, and a sieve plate 15 is installed at the inner wall of the screening port 13;

[0032] A fixed rod 24 rotatably connected to the inner wall of the rotating groove 8 is fixedly connected to one side of the support frame 25, and an inner gear ring 23 rotatably connected to the inner wall of the ring groove 7 is fixedly connected to one end of the fixed rod 24. A plurality of springs 26 are provided on the inner wall of the support frame 25, and a scraper plate 27 is provided at one end of the spring 26.

[0033] Furthermore, the motor 2 is fixedly connected to one end of one of the crushing rollers 9, the two ends of the crushing roller 9 are rotatably connected to the inner wall of the crushing chamber 3, the two driving gears 10 are meshingly connected, the other end of the fixed rod 24 is rotatably connected to the inner wall of the crushing chamber 3, the inner wall of the inner gear ring 23 is meshingly connected to the driving gear 11, the side walls at both ends of the spring 26 are fixedly connected to the inner wall of the support frame 25 and the outer wall of the scraper plate 27, and the outer wall of the scraper plate 27 is slidably connected to the inner wall of the support frame 25.

[0034] It should be noted that: the motor 2 is started and the crushing rollers 9 are rotated in the opposite direction through the cooperation between the driving gears 10, so as to improve the crushing effect of the straw. While the straw is being crushed, the driving gear 11 engages the inner gear ring 23 to rotate, driving the fixed rod 24 on one side of the inner gear ring 23 to drive the support frame 25 and the scraper plate 27 to rotate. During the rotation, the straw resting on the screen plate 15 is lifted. When it reaches the highest point, the straw falls back to the crushing rollers 9 below under the action of gravity for crushing. This process is repeated until the crushed straw particles can fall through the screen plate 15 into the discharge pipe 5 below for collection. During the working process, the straw can be fully crushed, the crushing effect is improved, and the size of the crushed straw is ensured to meet the standard.

[0035] Furthermore, adjusting grooves 14 are provided on the inner walls on both sides of the screening opening 13, and sliding blocks 16 slidably connected to the inner walls of the adjusting grooves 14 are fixedly connected to the outer walls on both sides of the sieve plate 15, and two symmetrical fixed shafts 17 are rotatably connected to the inner wall below the discharge pipe 5 near the sieve plate 15, and adjusting blocks 18 are fixedly connected to the outer walls at both ends of the fixed shaft 17, and a plurality of protrusions are provided on the adjusting block 18, and the protrusions on the adjusting block 18 are slidably abutted against the bottom end of the sieve plate 15, and a third pulley 21 is fixedly connected to one end of the fixed shaft 17, and a second belt 22 is transmission-connected between the two third pulleys 21, one end of one of the fixed shafts 17 is fixedly connected to the second pulley 19, and one end of one of the crushing rollers 9 is fixedly connected to the first pulley 12, and the first pulley 12 is provided with a first belt 20 transmission-connected to the second pulley 19.

[0036] It should be noted that: while the straw is crushed, the fixed shaft 17 arranged inside the discharge pipe 5 rotates simultaneously with the first pulley 12 and the second pulley 19 in cooperation with the first belt 20. During the rotation, the protrusions on the adjusting blocks 18 at both ends of the fixed shaft 17 continuously slide and lift the upper screen plate 15. After the protrusions are out of contact, they fall under the action of gravity, causing the screen plate 15 to slide up and down reciprocatingly to generate vibration, thereby preventing the straw on the screen plate 15 from being blocked, improving the screening effect and accelerating the rate of straw discharge. At the same time, the spring 26 arranged on the inner wall of the support frame 25 cooperates with the scraper plate 27 to be adaptively adjusted according to the height of the screen plate 15, so that one end of the scraper plate 27 can be against the screen plate 15 to push the straw, thereby preventing some straw from not being pushed and lifted by the scraper plate 27 when the screen plate 15 vibrates.

[0037] The working principle of the straw crusher is as follows: the motor 2 is started to drive the whole device to work, and the straw is vertically put into the crushing chamber 3 through the feeding port 4. The straw is crushed by the crushing roller 9 and then falls onto the screen plate 15 below. While crushing, the driving gear 11 meshes with the inner gear ring 23 to rotate, driving the fixed rod 24 on one side of the inner gear ring 23 to drive the support frame 25 and the scraper plate 27 to rotate. During the rotation, the straw resting on the screen plate 15 is lifted up. When reaching the highest point, the straw falls back to the crushing rollers 9 below under the action of gravity for crushing. This process is repeated until the crushed straw particles can pass through the screen plate 1 5 falls into the discharge pipe 5 below to complete collection. While the screen plate 15 is screening, the fixed shaft 17 arranged inside the discharge pipe 5 rotates simultaneously with the first pulley 12 and the second pulley 19 in cooperation with the first belt 20. During the rotation, the protrusions on the adjusting blocks 18 at both ends of the fixed shaft 17 continuously slide and lift the upper screen plate 15. After the protrusions are out of contact, they fall under the action of gravity, causing the screen plate 15 to slide up and down reciprocatingly to generate vibration, thereby preventing the straw on the screen plate 15 from being blocked, improving the screening effect and accelerating the rate of straw discharge. The completely crushed straw falls through the discharge pipe 5 for collection.

[0038] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0039] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A straw crusher, comprising a frame (1), a crushing chamber (3) and a support frame (25) arranged on the frame (1), characterized in that: A motor (2) is installed at the upper end of the frame (1); The outer wall of the crushing chamber (3) is fixedly connected to the inner wall of the frame (1); a loading port (4) is provided at the upper end of the crushing chamber (3); a feeding pipe (5) is installed at the lower end of the crushing chamber (3); a mounting groove (6) is provided on the inner wall at one end of the crushing chamber (3); an annular groove (7) is provided on the inner wall of the crushing chamber (3) on the side close to the mounting groove (6); a rotating groove (8) is provided on the inner wall of the annular groove (7); two symmetrical crushing rollers (9) are installed inside the crushing chamber (3); one end of the two crushing rollers (9) is fixedly connected to a driving gear (10); the outer wall of one of the crushing rollers (9) is fixedly connected to a driving gear (11) rotatably connected to the inner wall of the mounting groove (6); a screening port (13) is provided at the lower end of the crushing chamber (3); a screening plate (15) is installed on the inner wall of the screening port (13); A fixed rod (24) rotatably connected to the inner wall of the rotating groove (8) is fixedly connected to one side of the support frame (25); one end of the fixed rod (24) is fixedly connected to an inner gear ring (23) rotatably connected to the inner wall of the ring groove (7); a plurality of springs (26) are provided on the inner wall of the support frame (25); a scraper plate (27) is provided at one end of the spring (26).

2. A straw crusher according to claim 1, characterized in that: The motor (2) is fixedly connected to one end of one of the crushing rollers (9), the two ends of the crushing roller (9) are rotatably connected to the inner wall of the crushing chamber (3), and the two driving gears (10) are meshingly connected.

3. A straw crusher according to claim 2, characterized in that: The other end of the fixing rod (24) is rotatably connected to the inner wall of the pulverizing chamber (3), and the inner wall of the inner gear ring (23) is meshingly connected to the driving gear (11).

4. A straw crusher according to claim 3, characterized in that: The side walls at both ends of the spring (26) are fixedly connected to the inner wall of the support frame (25) and the outer wall of the scraper plate (27), respectively, and the outer wall of the scraper plate (27) is slidably connected to the inner wall of the support frame (25).

5. The straw crusher according to claim 1, characterized in that: Adjustment grooves (14) are provided on the inner walls on both sides of the screening opening (13), and sliding blocks (16) are fixedly connected to the outer walls on both sides of the screening plate (15) and are slidably connected to the inner walls of the adjustment grooves (14).

6. A straw crusher according to claim 5, characterized in that: The discharge pipe (5) is rotatably connected to the inner wall below the sieve plate (15) with two symmetrical fixed shafts (17); the outer walls at both ends of the fixed shafts (17) are fixedly connected to adjustment blocks (18); the adjustment blocks (18) are provided with a plurality of protrusions; the protrusions on the adjustment blocks (18) are in sliding contact with the bottom end of the sieve plate (15).

7. A straw crusher according to claim 6, characterized in that: One end of the fixed shaft (17) is fixedly connected to a third belt pulley (21), and a second belt (22) is transmission-connected between the two third belt pulleys (21).

8. The straw crusher according to claim 7, characterized in that: One end of one of the fixed shafts (17) is fixedly connected to a second belt pulley (19), one end of one of the crushing rollers (9) is fixedly connected to a first belt pulley (12), and a first belt (20) drivingly connected to the second belt pulley (19) is installed on the first belt pulley (12).

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