Agricultural straw crushing device

Abstract

The utility model relates to straw crushing technical field, and disclose an agricultural straw crushing device, including the crushing bin, the fixed frame is fixed on the crushing bin, install the feeding cylinder on the fixed frame, the feeding cylinder end side intercommunication has the feeding hopper, install the conveying assembly on the feeding cylinder, install the guide plate in the crushing bin, install the crushing assembly in the crushing bin, the crushing assembly includes the transmission shaft that rotates and connects in the crushing bin, a plurality of cutting knives are fixedly sleeved to the transmission shaft outer ring, two rotatable rings rotate in the crushing bin, the rotatable roller is fixed between two rotatable rings, the rotatable roller is opened and has the through -hole, the broken roll is slidably installed in the through -hole. The utility model effectively solves each kind of problem that the straw fiber softness easily entangled leads to, guarantees the stable operation of crushing, prevents the broken roll from winding damage, the crushing efficiency drops and the situation of the equipment operation noise increase appears.

Description

Technical Field

[0001] This utility model relates to the field of straw crushing technology, specifically to an agricultural straw crushing device. Background Technology

[0002] Straw is a general term for the stems and leaves of mature crops, usually referring to the remaining parts of wheat, rice, corn, potatoes, rapeseed, cotton, sugarcane and other crops after the grains are harvested. More than half of the products of crop photosynthesis are found in straw. Straw is rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matter, and is a multi-purpose renewable biological resource. Straw is also a kind of roughage.

[0003] An agricultural straw crushing device, as described in application number CN202123388226.8, includes a support platform. A collection box is located at the bottom of the support platform. Four bolts are threadedly connected in a rectangular array to the top of the collection box. One end of each bolt is threadedly connected to the bottom of the support platform. The collection box is fixedly connected to the support platform via bolts. Four buffer springs are arranged in a rectangular array on the top of the collection box, with one end of each spring fixedly connected to the bottom of the support platform. A circular groove is formed in the center of the top of the collection box, and a discharge pipe is fixedly connected to the inner wall of the groove. The middle of the discharge pipe is threadedly connected to the middle of the support platform. This invention utilizes the bolts and the collection box to design the collection box as a detachable mechanism, facilitating its disassembly and installation. Furthermore, the collection box and support platform are sealed together by bolts, preventing straw fragments from spilling during the crushing process, thus avoiding resource waste and improving collection efficiency.

[0004] However, while the aforementioned patents can solve the problems of debris spillage and collection efficiency through detachable collection boxes, the soft and easily tangled nature of straw fibers means that straw easily gets tangled on the crushing rollers during the crushing process. This not only damages the crushing rollers but also reduces crushing efficiency. Furthermore, it generates significant noise during equipment operation, compromising the stability and efficiency of the crushing operation. It is difficult to meet the operational requirements for thorough and fine crushing of straw, and it also shortens the service life of the equipment. Moreover, when feeding straw, it can cause a large accumulation of straw, leading to conveyor jamming problems, causing the crushing rollers to bear excessive load, and increasing the risk of crushing roller damage.

[0005] Therefore, we propose an agricultural straw crushing device to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide an agricultural straw crushing device to solve the problems mentioned in the background art, such as the easy damage of existing crushing rollers, which affects the crushing effect and reduces the service life.

[0007] This utility model provides the following technical solution: an agricultural straw crushing device, including a crushing chamber, a fixed frame fixed on the crushing chamber, a feeding cylinder installed on the fixed frame, the feeding cylinder being connected to the crushing chamber, a feed hopper connected to the end of the feeding cylinder, a conveying assembly installed on the feeding cylinder, a guide plate installed inside the crushing chamber, a crushing assembly installed inside the crushing chamber, the crushing assembly including a drive shaft rotatably connected inside the crushing chamber, a plurality of cutters fixedly sleeved on the outer ring of the drive shaft, two rotating rings rotating inside the crushing chamber, a rotating roller fixed between the two rotating rings, a through hole opened on the rotating roller, and a crushing roller slidably installed in the through hole.

[0008] Preferably, the conveying assembly includes a motor fixed on the feeding cylinder, and a spiral blade is fixed at the output end of the motor, the spiral blade being coaxially arranged with the feeding cylinder.

[0009] Preferably, a mounting frame is fixed to the side wall of the crushing chamber, and a second motor is fixed on the mounting frame. The output end of the second motor is fixedly connected to the transmission shaft.

[0010] Preferably, the cutter, through holes, and crushing roller are arranged in a linear array, and the cutter and the crushing roller are staggered.

[0011] Preferably, a drive gear is fixedly sleeved on the outer ring of the drive shaft, and a driven gear is fixedly sleeved on the outer ring of one of the rotating rings. The drive gear and the driven gear mesh with each other. The inner part of the rotating roller is hollow. A frustum is fixedly sleeved on the outer ring of the crushing roller. A spring is sleeved on the outer ring of the crushing roller. One end of the spring is fixedly connected to the inner wall of the crushing roller, and the other end of the spring is fixedly connected to the frustum.

[0012] Preferably, a fixing rod is fixed inside the crushing chamber, the fixing rod is coaxially arranged with the rotating ring, and multiple cams are fixedly sleeved on the outer ring of the fixing rod, and the crushing roller slides in contact with the cams.

[0013] This utility model has the following beneficial effects:

[0014] 1. This device can fully and finely crush agricultural straw, effectively solving various problems caused by the soft and easily tangled straw fibers in existing devices. It ensures stable and efficient crushing operations and prevents straw from adhering to the crushing roller, thus preventing damage to the crushing roller due to tangling, reduced crushing efficiency, and increased equipment operating noise. It ensures that the crushing components maintain good working condition, reduces the probability of equipment failure, extends equipment service life, and allows the entire crushing process to proceed smoothly, effectively meeting the efficiency and quality requirements of agricultural straw crushing operations.

[0015] 2. This device can avoid the problem of straw accumulating in the feeding cylinder and causing conveying blockage in traditional feeding methods. It can stably control the conveying speed and amount of straw, and ensure that the straw enters the crushing chamber continuously and evenly, matching the crushing rhythm of the crushing components. This prevents the amount of straw entering the crushing chamber from fluctuating and affecting the crushing effect. At the same time, it can also avoid the problem of excessive load on the crushing roller due to excessive straw accumulation, thereby further improving the stability of the crushing operation and the overall operating efficiency, and reducing equipment maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0018] Figure 3 This is an overall sectional view of the present invention.

[0019] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0020] Figure 5 This is a schematic diagram of the crushing component structure of this utility model.

[0021] Figure 6 This is an exploded view of the crushing component of this utility model.

[0022] Figure 7 For the present utility model Figure 6 Enlarged structural diagram at point B.

[0023] In the diagram: 1. Crushing chamber; 2. Fixing frame; 3. Feeding cylinder; 4. Feed hopper; 5. Conveying assembly; 51. Motor 1; 52. Spiral blade; 6. Guide plate; 7. Crushing assembly; 71. Mounting frame; 72. Motor 2; 73. Drive shaft; 731. Cutter; 74. Drive gear; 75. Driven gear; 76. Rotary ring; 77. Rotary roller; 78. Through hole; 79. Fixing rod; 710. Cam; 711. Spring; 712. Frustum; 713. Crushing roller. Detailed Implementation

[0024] 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.

[0025] Example 1:

[0026] This embodiment aims to address the problem that during the agricultural straw crushing process, the soft and easily entangled nature of straw fibers causes it to become entangled on the crushing roller 713, leading to damage to the crushing roller 713, reduced crushing efficiency, and noise during equipment operation, thus affecting the stable and efficient crushing operation. Please refer to [link to relevant documentation]. Figure 1 - Figure 7 An agricultural straw crushing device includes a crushing chamber 1, a fixed frame 2 fixed on the crushing chamber 1, a feeding cylinder 3 installed on the fixed frame 2, the feeding cylinder 3 being connected to the crushing chamber 1, a feed hopper 4 connected to the end of the feeding cylinder 3, a guide plate 6 installed inside the crushing chamber 1, and a crushing assembly 7 installed inside the crushing chamber 1. The crushing assembly 7 includes a drive shaft 73 rotatably connected inside the crushing chamber 1, a plurality of cutters 731 fixedly sleeved on the outer ring of the drive shaft 73, two rotating rings 76 rotating inside the crushing chamber 1, a rotating roller 77 fixed between the two rotating rings 76, a through hole 78 opened on the rotating roller 77, and a crushing roller 713 slidably installed in the through hole 78.

[0027] A mounting bracket 71 is fixed to the side wall of the crushing chamber 1. A second motor 72 is fixed on the mounting bracket 71. The output end of the second motor 72 is fixedly connected to the drive shaft 73. The cutter 731, through hole 78 and crushing roller 713 are all arranged in a linear array. The cutter 731 and crushing roller 713 are staggered. A drive gear 74 is fixedly sleeved on the outer ring of the drive shaft 73. A driven gear 75 is fixed on the outer ring of one of the rotating rings 76. The drive gear 74 and the driven gear 75 mesh with each other. The inner part of the rotating roller 77 is hollow. A frustum 712 is fixed on the outer ring of the crushing roller 713. A spring 711 is sleeved on the outer ring of the crushing roller 713. One end of the spring 711 is fixedly connected to the inner wall of the crushing roller 713, and the other end of the spring 711 is fixedly connected to the frustum 712. A fixing rod 79 is fixedly installed in the crushing chamber 1. The fixing rod 79 is coaxially arranged with the rotating ring 76. Multiple cams 710 are fixedly sleeved on the outer ring of the fixing rod 79. The crushing roller 713 slides in contact with the cams 710.

[0028] In this embodiment: when agricultural straw needs to be crushed, the straw is first fed into the equipment through the feed hopper 4. The straw will enter the feeding cylinder 3 through the channel of the feed hopper 4, and then enter the crushing chamber 1 under the guidance of the feeding cylinder 3.

[0029] At this time, the second motor 72 installed on the mounting bracket 71 on the side wall of the crushing chamber 1 is started. After the second motor 72 is powered on, it will directly drive the transmission shaft 73 fixedly connected to its output end to rotate synchronously. When the transmission shaft 73 rotates, on the one hand, the transmission shaft 73 will drive the multiple cutters 731 fixedly sleeved on its outer ring to rotate together. When these cutters 731 rotate at high speed, they will perform preliminary cutting and crushing of the straw that has just entered the crushing chamber 1. On the other hand, the rotation of the transmission shaft 73 will also drive the drive gear 74 fixed on its outer ring to rotate. Since the drive gear 74 and the driven gear 75 fixed on the outer ring of one of the rotating rings 76 are in a meshing state, the rotational force of the drive gear 74 will be transmitted to the driven gear 75, thereby driving the rotating ring 76 to rotate. The two rotating rings 76 are fixedly connected by the rotating roller 77, so the two rotating rings 76 will drive the rotating roller 77 to rotate together synchronously.

[0030] When the rotating roller 77 rotates, the crushing roller 713, which is slidably installed inside it, will move in a circular motion along with the rotating roller 77. At the same time, since a fixed rod 79 coaxial with the rotating ring 76 is fixed inside the crushing chamber 1, and multiple cams 710 are fixedly sleeved on the outer ring of the fixed rod 79, the crushing roller 713 will always keep in contact with the surface of the cam 710 during the movement. Therefore, when the crushing roller 713 moves to the protruding part of the cam 710, the cam 710 will generate a continuous thrust on the crushing roller 713, causing the crushing roller 713 to extend outward along the preset through hole 78 on the rotating roller 77. During the crushing operation, under the continuous action of the thrust of the cam 710, the crushing roller 713 will remain in the extended state, forming an alternating cooperation with the synchronously rotating cutter 731, and efficiently crushing the straw.

[0031] When the extended crushing roller 713 moves with the rotating roller 77 to the recessed part of the cam 710, the contact surface between the cutter 731 and the crushing roller 713 will exert a certain compressive force on the straw. Under this state, even if the crushing roller 713 begins to retract, it will not affect the stability of the straw crushing process. Therefore, when the crushing roller 713 rotates to the recessed part of the cam 710, the spring 711 sleeved on the outer ring of the crushing roller 713 will release its elastic force. Under the action of the elastic force, the crushing roller 713 is pulled inward along the through hole 78, completing one extension and retraction cycle.

[0032] Through this operating method, the crushing roller 713 continuously extends and retracts within the area where the rotating roller 77 rotates to the feeding zone. Combined with the synchronously high-speed rotating cutter 731, this achieves thorough and fine crushing of the straw. Simultaneously, the reciprocating extension and retraction of the crushing roller 713 effectively prevents straw from adhering to it due to its soft and easily entangled fibers. This prevents damage to the crushing roller 713, reduced crushing efficiency, and increased equipment noise caused by straw entanglement, ensuring stable and efficient operation of the entire crushing process.

[0033] Example 2:

[0034] This embodiment aims to address the problem in agricultural straw crushing operations where, under traditional feeding methods, straw tends to accumulate in large quantities within the feeding cylinder 3, causing conveying blockages and resulting in unstable straw input into the crushing chamber 1, affecting the crushing effect. Furthermore, excessive straw accumulation can lead to overload and damage to the crushing roller 713. This embodiment is an improvement upon Embodiment 1. For details, please refer to [link to Embodiment 1]. Figure 1 - Figure 3 The feeding cylinder 3 is equipped with a conveying assembly 5. The conveying assembly 5 includes a motor 51 fixed on the feeding cylinder 3. The output end of the motor 51 is fixed with a spiral blade 52. The spiral blade 52 is coaxially arranged with the feeding cylinder 3.

[0035] In this embodiment: When performing straw crushing operation, after the straw is put into the feed hopper 4, the motor 51 on the feed cylinder 3 is started. The operation of the motor 51 will drive the spiral blade 52 fixedly connected to it to rotate. During the rotation of the spiral blade 52, it will generate a continuous and stable pushing force on the straw entering the feed cylinder 3, and transport the straw evenly and orderly into the crushing chamber 1.

[0036] The conveying action of the spiral blades 52 avoids the large accumulation of straw in the feeding cylinder 3 that occurs in traditional feeding methods. In the traditional method, if a large amount of straw is fed in, it is easy for it to accumulate in the feeding cylinder 3, causing conveying blockage. This results in inconsistent amounts of straw entering the crushing chamber 1, which not only affects the crushing effect of the subsequent crushing component 7, but may also cause the crushing roller 713 to be damaged due to excessive load caused by excessive straw accumulation. In this embodiment, the spiral blades 52 can stably control the conveying speed and amount of straw according to the crushing capacity of the crushing chamber 1, ensuring that the straw can continuously and evenly enter the crushing chamber 1, matching the crushing rhythm of the crushing component 7. This further ensures the stability of the crushing operation, avoids equipment damage and poor crushing effect caused by conveying blockage, and improves the overall operating efficiency.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An agricultural straw crushing device, comprising a crushing chamber (1), characterized in that: A fixed frame (2) is fixed on the crushing chamber (1), and a feeding cylinder (3) is installed on the fixed frame (2). The feeding cylinder (3) is connected to the crushing chamber (1). A feeding hopper (4) is connected to the end of the feeding cylinder (3). A conveying assembly (5) is installed on the feeding cylinder (3). A guide plate (6) is installed inside the crushing chamber (1). A crushing assembly (7) is installed inside the crushing chamber (1). The crushing assembly (7) includes a drive shaft (73) rotatably connected inside the crushing chamber (1). Multiple cutters (731) are fixedly sleeved on the outer ring of the drive shaft (73). Two rotating rings (76) rotate inside the crushing chamber (1). A rotating roller (77) is fixed between the two rotating rings (76). A through hole (78) is opened on the rotating roller (77). A crushing roller (713) is slidably installed in the through hole (78).

2. The agricultural straw crushing device according to claim 1, characterized in that: The conveying assembly (5) includes a motor (51) fixed on the feed cylinder (3), and a spiral blade (52) is fixed at the output end of the motor (51). The spiral blade (52) is coaxially arranged with the feed cylinder (3).

3. The agricultural straw crushing device according to claim 1, characterized in that: The side wall of the crushing chamber (1) is fixed with a mounting frame (71), and a second motor (72) is fixed on the mounting frame (71). The output end of the second motor (72) is fixedly connected to the transmission shaft (73).

4. The agricultural straw crushing device according to claim 3, characterized in that: The cutter (731), through hole (78) and crushing roller (713) are all arranged in a linear array, and the cutter (731) and the crushing roller (713) are arranged alternately.

5. The agricultural straw crushing device according to claim 4, characterized in that: The drive shaft (73) is fixedly fitted with a drive gear (74) on its outer ring, and a driven gear (75) is fixedly fitted on the outer ring of one of the rotating rings (76). The drive gear (74) and the driven gear (75) mesh with each other. The rotating roller (77) is hollow inside. The crushing roller (713) is fixedly fitted with a frustum (712) on its outer ring. The crushing roller (713) is fitted with a spring (711) on its outer ring. One end of the spring (711) is fixedly connected to the inner wall of the crushing roller (713), and the other end of the spring (711) is fixedly connected to the frustum (712).

6. The agricultural straw crushing device according to claim 5, characterized in that: A fixing rod (79) is fixed inside the crushing chamber (1). The fixing rod (79) is coaxially arranged with the rotating ring (76). Multiple cams (710) are fixedly sleeved on the outer ring of the fixing rod (79). The crushing roller (713) slides in contact with the cams (710).

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