Safety protection structure of agricultural straw pulverizer

Abstract

The invention belongs to the technical field of crushers, and particularly relates to an agricultural straw crusher safety protection structure which comprises a mounting frame detachably mounted on a feeding plate of a straw crusher, a pressing rod is arranged at the top of the mounting frame in a penetrating mode, a transverse rod is fixed to the bottom of the pressing rod, and a pressing plate is arranged below the transverse rod. The pressing plate is slidably connected to the transverse rod through an elastic telescopic assembly, a push plate lapped on the feeding plate is arranged below the pressing plate, a hanging rod is fixed to the top end of the pressing rod, and foot sleeves are fixed to the bottom end of the hanging rod. According to the straw feeding device, a user puts a bundle of straw onto the push plate, then stretches feet into the foot sleeves and steps on the pressing rod through the foot sleeves, the pressing rod drives the push plate and the straw to move towards the feeding port together through the transmission assembly, when the end of the straw reaches the position below the pressing plate, the pressing plate just presses the end of the straw, the pressing plate continues to flatten the straw downwards, and the straw is fed into the straw feeding port. And the push plate and the pressing plate are used for tightly pressing the straws and conveying the straws to the feeding hole, so that the potential safety hazard of the existing crusher is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of crushers, and in particular to a safety protection structure for an agricultural straw crusher. Background Technology

[0002] As we all know, my country is a large agricultural country. Every year during the crop harvest season, a large amount of waste straw is generated. By crushing the straw with a crusher, the straw can be used as waste for the purpose of making feed.

[0003] However, most crushers have certain defects and lack good safety protection structures. One type of straw crusher has a feed plate extending outward from the side, which is connected to the feed port. When in use, the user needs to hold a bundle of straw and place it on the feed plate, and then use both hands to press down the end of the straw and push the straw toward the feed port along the feed plate until the end of the straw is rolled into the crushing roller. This operation method has great safety hazards. It is very likely that the user's hand will be dragged into the crushing roller when the user is not paying attention. Therefore, corresponding improvements are made to address this problem. SUMMARY OF THE INVENTION

[0004] Based on the technical problems existing in the prior art, the present invention proposes a safety protection structure for an agricultural straw crusher.

[0005] The present invention proposes a safety protection structure for an agricultural straw crusher, comprising a mounting frame detachably mounted on a feed plate of the straw crusher, a pressure rod being provided through the top of the mounting frame, a cross bar being fixed to the bottom of the pressure rod, a pressure plate being provided below the cross bar, the pressure plate being slidably connected to the cross bar through an elastic telescopic assembly, a push plate being provided below the pressure plate and resting on the feed plate, a hanging rod being fixed to the top of the pressure rod, a foot cover being fixed to the bottom of the hanging rod, a bundle of straw being placed on the push plate, and then the pressure rod being stepped down by the foot cover, the pressure rod drives the push plate and the straw to move toward the feed port together through the transmission assembly, when the end of the straw reaches below the pressure plate, the pressure plate just presses on the end of the straw, the pressure plate continues to flatten the straw downward, and the push plate and the pressure plate together press the straw tightly and transport it to the feed port.

[0006] Preferably, the transmission assembly includes a first rack and a second rack, the first rack is fixed on the pressure rod, the second rack is fixed on the push plate, the side of the mounting frame is rotatably connected to a shaft, a gear is fixedly sleeved on the shaft, and the gear is meshed with the first rack and the second rack.

[0007] Preferably, the elastic telescopic assembly includes a sleeve rod and an inner rod, the inner rod is inserted into a receiving groove at the bottom of the sleeve rod, a first spring is fixed to the top of the inner rod, the top of the first spring is fixed to the top wall of the receiving groove, and the inner rod is fixedly connected to the pressure plate.

[0008] Preferably, a slide groove is provided at the bottom of the crossbar, a slider is provided in the slide groove, a guide rod passing through the slider is detachably installed in the slide groove, and the slider is fixed to the top of the sleeve rod.

[0009] Preferably, a second spring is fixed to one end of the slider, the other end of the second spring is fixed to the side wall of the slide slot, and the second spring is sleeved on the guide rod.

[0010] Preferably, a first screw hole is provided on the side wall of the slide slot, a first stud is provided at one end of the guide rod, and the first stud is threadedly connected to the first screw hole.

[0011] Preferably, a pair of threaded holes are provided on both sides of the mounting frame, and the threaded holes are threadedly connected with knobs that can be pressed against the sides of the feed plate.

[0012] Preferably, a base frame is detachably connected below the feed plate, a pair of round holes are provided on the base frame, guide posts are inserted into the round holes, one end of the guide post is a T-shaped structure, and the other end of the guide post is threadedly connected to the second screw hole on the push plate through a second stud, a third spring is sleeved on the guide post, and the two ends of the third spring respectively resist the base frame and the push plate.

[0013] Preferably, the mounting frame and the base frame are connected together by a pair of bolts and nuts.

[0014] Preferably, the base frame is provided with a notch, a pressure block is inserted into the notch, a mounting hole is provided on the bottom wall of the notch, a screw is rotatably connected in the mounting hole, the screw is threadedly connected to the pressure block, and pressure strips are provided on both sides of the inner wall of the mounting frame that can be placed on the top surface of the feed plate.

[0015] Compared with the prior art, the present invention provides a safety protection structure for an agricultural straw crusher, which has the following beneficial effects:

[0016] 1. A safety protection structure for an agricultural straw crusher. By setting a pressing plate and a pushing plate, a bundle of straw is placed on the pushing plate, and then the foot is inserted into the foot cover, and the pressing rod is stepped on through the foot cover. The pressing rod drives the pushing plate and the straw to move toward the feed inlet through the transmission assembly. When the end of the straw reaches the bottom of the pressing plate, the pressing plate just presses on the end of the straw, and the pressing plate continues to flatten the straw downward. The pushing plate and the pressing plate together press the straw to the feed inlet until the end of the straw is rolled into the crushing roller in the crusher, and the foot is removed from the foot cover. This avoids pushing the straw toward the feed inlet with the hand, thereby playing a safety protection role. The arc structure at the bottom of the pressing plate can make the straw form a posture with the end pressed down in the process of pressing the straw, so that the pressing plate and the straw have a larger contact surface, so that when the pushing plate drives the straw to move, the straw can more conveniently drive the pressing plate to move toward the feed inlet.

[0017] 2. A safety protection structure for an agricultural straw crusher. By setting a transmission component, when the pressing rod moves downward, it synchronously drives the first rack to move. The first rack meshes with and drives the gear to rotate, and the gear meshes with and drives the second rack to move forward. The second rack can then drive the push plate to move towards the feed inlet.

[0018] 3. A safety protection structure for an agricultural straw crusher. By setting an elastic telescopic component, when the pressing plate just presses on the straw, as the pressing rod continues to move downward, the first spring will be continuously compressed, and the pressing plate will gradually press tightly on the straw. In this way, the push plate and the pressing plate can together press the straw tightly and convey it towards the feed inlet.

[0019] 4. A safety protection structure for an agricultural straw crusher. By setting a chassis, guide posts and a third spring, through the sliding fit between the guide posts and the round holes, the push plate can be limited. When the foot sleeve is released, under the elastic force of the third spring, the push plate is pushed to reset, and then the pressing plate is driven to reset upward through the transmission component. During installation, just pass one end of the guide post through the round hole, then put the third spring onto the guide post, and then tighten the second stud into the second screw hole to complete the installation.

[0020] 5. A safety protection structure for an agricultural straw crusher. By setting a pressure strip and a pressure block, when installing the mounting frame, make the pressure strip press on the top of the feed plate. After the mounting frame and the chassis are installed, rotate the screw rod to drive the pressure block to move upward along the notch and press tightly against the bottom of the feed plate. In this way, the mounting frame and the chassis can be fixed more firmly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. is a schematic structural diagram of a safety protection structure for an agricultural straw crusher proposed by the present invention installed on a straw crusher;

[0022] Figure 2 FIG. is a schematic structural diagram of a safety protection structure for an agricultural straw crusher proposed by the present invention from a first angle;

[0023] Figure 3 FIG. is a schematic structural diagram of a safety protection structure for an agricultural straw crusher proposed by the present invention from a second angle;

[0024] Figure 4 FIG. is a schematic sectional view of the mounting frame of a safety protection structure for an agricultural straw crusher proposed by the present invention;

[0025] Figure 5 FIG. is a schematic sectional view of the sleeve rod of a safety protection structure for an agricultural straw crusher proposed by the present invention;

[0026] Figure 6 FIG. is a schematic sectional view of the cross bar of a safety protection structure for an agricultural straw crusher proposed by the present invention;

[0027] Figure 7 For the present invention Figure 3 Schematic enlarged structure diagram of part A of a safety protection structure of an agricultural straw crusher proposed by the present invention;

[0028] Figure 8 Schematic installation structure diagram of a push plate and a chassis bracket of a safety protection structure of an agricultural straw crusher proposed by the present invention;

[0029] Figure 9 Schematic chassis structure diagram of a safety protection structure of an agricultural straw crusher proposed by the present invention.

[0030] In the figure: 1, mounting frame; 2, pressure rod; 3, cross bar; 4, pressing plate; 5, push plate; 6, hanging rod; 7, foot sleeve; 8, shaft rod; 9, gear; 10, first rack; 11, second rack; 12, sleeve rod; 13, storage groove; 14, inner rod; 15, first spring; 16, sliding groove; 17, slider; 18, guide rod; 19, second spring; 20, first screw hole; 21, first stud; 22, threaded hole; 23, knob; 24, chassis; 25, guide post; 26, round hole; 27, third spring; 28, second stud; 29, second screw hole; 30, bolt; 31, nut; 32, pressing strip; 33, notch; 34, mounting hole; 35, screw rod; 36, pressing block. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0033] Refer to Figure 1-9A safety protection structure for an agricultural straw crusher comprises a mounting frame 1 which can be detachably mounted on a feed plate of the straw crusher, a pressure rod 2 is provided on the top of the mounting frame 1, a cross bar 3 is fixed on the bottom of the pressure rod 2, a pressure plate 4 is provided below the cross bar 3, the pressure plate 4 is slidably connected to the cross bar 3 through an elastic telescopic component, a push plate 5 which is placed on the feed plate is provided below the pressure plate 4, a hanging rod 6 is fixed on the top of the pressure rod 2, a foot cover 7 is fixed on the bottom of the hanging rod 6, a bundle of straw is placed on the push plate 5, and then the foot is deeply inserted into the foot cover 7, the pressure rod 2 is stepped on through the foot cover 7, and the pressure rod 2 drives the push plate 5 and the straw to move toward the direction of the feed port together through the transmission component, When the end of the straw reaches below the pressing plate 4, the pressing plate 4 just presses on the end of the straw, and the pressing plate 4 continues to flatten the straw downwards. The push plate 5 and the pressing plate 4 together press the straw and transport it to the feed port until the end of the straw is rolled into the crushing roller in the crusher, and the foot is moved away from the foot cover 7, so that it is avoided to push the straw toward the feed port by hand, thereby playing a safety protection role. The arc structure at the bottom of the pressing plate 4 can make the straw form a posture with the end pressed down during the process of pressing the straw, so that the pressing plate 4 and the straw have a larger contact surface, so that when the push plate 5 drives the straw to move, the straw can more conveniently drive the pressing plate 4 to move toward the feed port.

[0034] Furthermore, the transmission assembly includes a first rack 10 and a second rack 11. The first rack 10 is fixed on the pressure rod 2, and the second rack 11 is fixed on the push plate 5. The mounting frame 1 is rotatably connected to the side of the shaft rod 8. A gear 9 is fixedly sleeved on the shaft rod 8. The gear 9 is meshed with the first rack 10 and the second rack 11. When the pressure rod 2 moves downward, it synchronously drives the first rack 10 to move. The first rack 10 meshes and drives the gear 9 to rotate. The gear 9 meshes and drives the second rack 11 to move forward. The second rack 11 can drive the push plate 5 to move toward the feed port.

[0035] Furthermore, the elastic telescopic assembly includes a sleeve rod 12 and an inner rod 14. The inner rod 14 is inserted into the storage groove 13 at the bottom of the sleeve rod 12. A first spring 15 is fixed to the top of the inner rod 14. The top of the first spring 15 is fixed to the top wall of the storage groove 13. The inner rod 14 is fixedly connected to the pressing plate 4. When the pressing plate 4 just presses on the straw, as the pressing rod 2 continues to move downward, the first spring 15 will be continuously compressed, and the pressing plate 4 will gradually press against the straw, so that the push plate 5 and the pressing plate 4 can press the straw together and transport it to the feed port.

[0036] Furthermore, a slide groove 16 is provided at the bottom of the crossbar 3, a slider 17 is provided in the slide groove 16, a guide rod 18 passing through the slider 17 is detachably installed in the slide groove 16, and the slider 17 is fixed to the top of the sleeve rod 12. Through the sliding cooperation between the guide rod 18 and the slider 17, the pressure plate 4 can be moved horizontally.

[0037] Further, one end of the slider 17 is fixed with a second spring 19, the other end of the second spring 19 is fixed on the side wall of the chute 16, the second spring 19 is sleeved on the guide rod 18. After the footrest 7 is released, under the elastic force of the second spring 19, the slider 17 is pushed to move back to its original position, so that the pressing plate 4 can be reset.

[0038] Further, a first screw hole 20 is formed in the side wall of the chute 16, a first stud 21 is provided at one end of the guide rod 18, and the first stud 21 is threadedly connected to the first screw hole 20. One end of the guide rod 18 is passed through the slider 17, and the first stud 21 is tightened into the first screw hole 20, then the limit of the slider 17 can be completed.

[0039] Further, a pair of threaded holes 22 are formed on both sides of the mounting frame 1, and a knob 23 that can be abutted against the side of the feeding plate is threadedly connected in the threaded holes 22. The mounting frame 1 is sleeved on the feeding plate, and then the knob 23 is screwed into the threaded holes 22 to make it abut against the side of the feeding plate, then the mounting frame 1 can be fixed to the feeding plate.

[0040] Further, a bottom frame 24 is detachably connected below the feeding plate. A pair of round holes 26 are formed in the bottom frame 24, a guide post 25 is inserted into the round holes 26. One end of the guide post 25 is of a T-shaped structure, and the other end of the guide post 25 is threadedly connected to a second screw hole 29 on the push plate 5 through a second stud 28. A third spring 27 is sleeved on the guide post 25, and both ends of the third spring 27 abut against the bottom frame 24 and the push plate 5 respectively. Through the sliding fit between the guide post 25 and the round holes 26, the push plate 5 can be limited. After the footrest 7 is released, under the elastic force of the third spring 27, the push plate 5 is pushed to reset, and then the pressing plate 4 is driven to reset upward through the transmission assembly. During installation, only one end of the guide post 25 needs to be passed through the round hole 26, then the third spring 27 is sleeved onto the guide post 25, and then the second stud 28 is tightened into the second screw hole 29 to complete the installation.

[0041] Further, the mounting frame 1 and the bottom frame 24 are connected together by a pair of bolts 30 and nuts 31, so that the mounting frame 1 and the bottom frame 24 can be fixed together.

[0042] Further, a notch 33 is formed in the bottom frame 24, a pressing block 36 is inserted into the notch 33, a mounting hole 34 is formed in the bottom wall of the notch 33, a screw rod 35 is rotatably connected in the mounting hole 34, and the screw rod 35 is threadedly connected to the pressing block 36. Pressing strips 32 that can be placed on the top surface of the feeding plate are provided on both inner walls of the mounting frame 1. When installing the mounting frame 1, the pressing strips 32 are pressed on the top of the feeding plate. After the mounting frame 1 and the bottom frame 24 are installed, the screw rod 35 is rotated to drive the pressing block 36 to move upward along the notch 33 and abut against the bottom of the feeding plate, so that the mounting frame 1 and the bottom frame 24 can be fixed more firmly.

[0043] Working principle: Place a bundle of straw on the push plate 5, then put your foot deep into the foot cover 7, step on the pressure rod 2 through the foot cover 7, and the pressure rod 2 moves downward and drives the first rack 10 to move synchronously, the first rack 10 meshes and drives the gear 9 to rotate, the gear 9 meshes and drives the second rack 11 to move forward, and the second rack 11 drives the push plate 5 to move toward the feed inlet. When the end of the straw reaches the bottom of the pressure plate 4, the pressure plate 4 just presses on the end of the straw, and as the pressure plate 4 continues to move downward The first spring 15 is continuously compressed, the pressing plate 4 is gradually pressed onto the straw, and the push plate 5 and the pressing plate 4 together press the straw to the feed port until the end of the straw is rolled into the crushing roller in the crusher, and the foot is removed from the foot cover 7. After the foot cover 7 is released, the push plate 5 is pushed to reset under the elastic force of the third spring 27, and then the pressing plate 4 is driven to reset upward through the transmission component, and the slider 17 is pushed to reset and move under the elastic force of the second spring 19;

[0044] The arc-shaped structure at the bottom of the pressing plate 4 can make the end of the straw be pressed down during the process of pressing the straw, so that the pressing plate 4 and the straw have a larger contact surface, so that when the push plate 5 drives the straw to move, the straw can more conveniently drive the pressing plate 4 to move toward the feed inlet;

[0045] During installation, put the mounting frame 1 on the feed plate so that the pressure strip 32 is pressed on the top of the feed plate, and then screw the knob 23 into the threaded hole 22 to make it close to the side of the feed plate, then put the push plate 5 into the feed plate so that the second rack 11 is meshed with the gear 9, and then fix the base frame 24 to the mounting frame 1 through the bolt 30 and the nut 31, then pass one end of the guide column 25 through the circular hole 26, and then put the third spring 27 on the guide column 25, and then tighten the second stud 28 into the second screw hole 29.

[0046] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.​

Claims

1. A safety protection structure for an agricultural straw crusher, comprising a mounting frame (1) detachably mounted on a feed plate of the straw crusher, characterized in that: The top of the mounting frame (1) is provided with a pressure rod (2) running through it, a cross bar (3) is fixed at the bottom of the pressure rod (2), a pressure plate (4) is provided below the cross bar (3), the pressure plate (4) is slidably connected to the cross bar (3) through an elastic telescopic component, a push plate (5) placed on the feed plate is provided below the pressure plate (4), a hanging rod (6) is fixed at the top of the pressure rod (2), a foot cover (7) is fixed at the bottom of the hanging rod (6), a bundle of straw is placed on the push plate (5), and then the pressure rod (2) is stepped down through the foot cover (7), the pressure rod (2) drives the push plate (5) and the straw to move toward the feed inlet together through the transmission component, when the end of the straw reaches below the pressure plate (4), the pressure plate (4) just presses on the end of the straw, the pressure plate (4) continues to press the straw downward, and the push plate (5) and the pressure plate (4) together press the straw to the feed inlet.

2. The safety protection structure of an agricultural straw crusher according to claim 1, characterized in that: The transmission assembly comprises a first rack (10) and a second rack (11), wherein the first rack (10) is fixed on the pressure rod (2), and the second rack (11) is fixed on the push plate (5). The mounting frame (1) is rotatably connected to a shaft rod (8) on the side, and a gear (9) is fixedly sleeved on the shaft rod (8), and the gear (9) is meshingly connected to the first rack (10) and the second rack (11).

3. The safety protection structure of an agricultural straw crusher according to claim 1, characterized in that: The elastic telescopic assembly comprises a sleeve rod (12) and an inner rod (14); the inner rod (14) is inserted into a receiving groove (13) at the bottom of the sleeve rod (12); a first spring (15) is fixed to the top end of the inner rod (14); the top end of the first spring (15) is fixed to the top wall of the receiving groove (13); and the inner rod (14) is fixedly connected to the pressure plate (4).

4. The safety protection structure of an agricultural straw crusher according to claim 3, characterized in that: The bottom of the cross bar (3) is provided with a slide groove (16), a slider (17) is arranged in the slide groove (16), a guide rod (18) passing through the slider (17) is detachably installed in the slide groove (16), and the slider (17) is fixed on the top end of the sleeve rod (12).

5. The safety protection structure of an agricultural straw crusher according to claim 4, characterized in that: A second spring (19) is fixed to one end of the slide block (17), the other end of the second spring (19) is fixed to the side wall of the slide groove (16), and the second spring (19) is sleeved on the guide rod (18).

6. The safety protection structure of an agricultural straw crusher according to claim 4, characterized in that: A first screw hole (20) is formed on the side wall of the slide groove (16), and a first screw bolt (21) is formed on one end of the guide rod (18). The first screw bolt (21) is threadedly connected to the first screw hole (20).

7. The safety protection structure of an agricultural straw crusher according to claim 1, characterized in that: A pair of threaded holes (22) are provided on both sides of the mounting frame (1), and the threaded holes (22) are internally threadedly connected with knobs (23) that can be pressed against the sides of the feed plate.

8. The safety protection structure of an agricultural straw crusher according to claim 1, characterized in that: A base frame (24) is detachably connected below the feed plate, and a pair of circular holes (26) are formed on the base frame (24). A guide column (25) is inserted into the circular hole (26). One end of the guide column (25) is a T-shaped structure, and the other end of the guide column (25) is threadedly connected to a second screw hole (29) on the push plate (5) through a second screw column (28). A third spring (27) is sleeved on the guide column (25), and two ends of the third spring (27) respectively resist the base frame (24) and the push plate (5).

9. The agricultural straw crusher safety protection structure according to claim 8, characterized in that: The mounting frame (1) and the base frame (24) are connected together via a pair of bolts (30) and nuts (31).

10. The agricultural straw crusher safety protection structure according to claim 8, characterized in that: The base frame (24) is provided with a notch (33), a pressure block (36) is inserted into the notch (33), a mounting hole (34) is provided on the bottom wall of the notch (33), a screw rod (35) is rotatably connected in the mounting hole (34), the screw rod (35) is threadedly connected to the pressure block (36), and pressure strips (32) that can be placed on the top surface of the feed plate are provided on the inner walls on both sides of the mounting frame (1).

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