Recycling and smashing integrated device for straw

Abstract

The invention discloses a recycling and smashing integrated device for straw. The recycling and smashing integrated device comprises a straw picking device, a straw conveying device, a straw feeding device, a straw smashing device and a straw compacting device. The straw picking device comprises a picking cylinder, a plurality of rows of picking rods are arranged on the picking cylinder, and each row of picking rods comprises L-shaped picking rods distributed at intervals in the radial direction of the picking cylinder; the straw conveying device comprises an inclined conveying belt, multiple rows of conveying rods are arranged on the conveying belt, and each row of conveying rods comprises L-shaped conveying rods distributed at intervals in the horizontal direction; the picking cylinder is arranged at the lower end of the conveying belt, and the arrangement positions of the L-shaped picking rod and the L-shaped conveying rod are staggered in the horizontal direction. According to the recycling and smashing integrated device for the straw, by improving the straw transferring mode of the picking structure and the conveying structure, the picking and conveying efficiency of the straw is greatly improved, the situation that the straw falls back to the ground from the rear portion after being picked can be avoided, one-time picking can be achieved, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural tools, and in particular to an integrated device for recycling and crushing straw. Background Art

[0002] Straw is a general term for the stems and leaves of mature crops. It usually refers to the remaining parts of wheat, rice, corn, potatoes, rapeseed, cotton, sugarcane and other crops after the seeds are harvested. More than half of the products of crop photosynthesis are present in straw. Straw is rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matter, and is a renewable biological resource with multiple uses. Traditionally, agricultural straw is usually regarded as an agricultural waste or burned in the open air, causing environmental pollution and waste of resources. However, with the enhancement of environmental protection awareness and the increasing importance of resource recycling, the recycling of agricultural straw has become a hot spot in research and application.

[0003] At present, some agricultural straw recycling devices already exist. However, when picking up and collecting straw, the existing straw recycling devices continuously flip and pick up the straw through the hook plate, and then drop it onto the conveyor belt for transportation and subsequent crushing and other processing. However, the problem with such a structure is that when the hook plate picks up the straw at the bottom and rotates to the top, due to the effect of gravity, the straw will accumulate at the junction of the hook plate and the rotating drum and cannot fall onto the conveyor belt, causing part of the straw to fall on the ground behind the hook plate as the hook plate rotates back to the bottom. Since the device is in a continuous forward state, it can no longer be picked up. Therefore, it is difficult for the recycling device to ensure that all the straw is picked up in one stroke, and multiple back and forth picking is required, which is inefficient.

[0004] In addition, biomass power generation is the use of biomass energy to generate electricity, which is a type of renewable energy power generation, including direct combustion of agricultural and forestry waste power generation, agricultural and forestry waste gasification power generation, garbage incineration power generation, landfill gas power generation, and biogas power generation. Biomass power generation often requires the straw to be crushed and placed in a fermentation tank for fermentation. The crushed straw takes up more space, so it needs to be compressed into blocks and then placed as a whole. However, in actual use, the traditional straw recovery device has a low degree of integration and requires manual assistance, which is time-consuming and labor-intensive, making it difficult to improve production efficiency and causing inconvenience to use.

[0005] In view of this, this application is hereby filed. Summary of the invention

[0006] The technical problem to be solved by the present invention is that the existing straw recovery device continuously flips and picks up the straw for transportation onto the conveyor belt through the hook plate, which will cause part of the straw to turn back to the ground with the hook plate. The purpose is to provide an integrated device for recovering and crushing the straw. By improving the straw transfer method of the picking structure and the transmission structure, the straw picking and transmission efficiency is greatly improved, and the straw can be prevented from falling back to the ground from the rear after being picked up, so that one-time picking can be achieved and production efficiency is improved.

[0007] The present invention is achieved through the following technical solutions:

[0008] The present invention provides a straw recycling and crushing integrated device, comprising a straw picking device, a straw transmission device, a straw feeding device, a straw crushing device and a straw compacting device;

[0009] The straw picking device comprises a picking cylinder, on which a plurality of rows of picking rods are arranged along the circumferential direction, and each row of picking rods comprises L-shaped picking rods spaced apart along the radial direction of the picking cylinder; the L-shaped picking rods located at the lower half of the picking cylinder are arranged toward the side where the straw transmission device is located, and the picking cylinder can rotate around its own axis to drive the L-shaped picking rods at the lower half to move away from the movement direction of the device and rotate toward the direction where the straw transmission device is located;

[0010] The straw transmission device comprises an inclined transmission belt, on which a plurality of rows of transmission rods are arranged in sequence from top to bottom, each row of transmission rods comprises L-shaped transmission rods spaced apart in a horizontal direction; the L-shaped transmission rods move in an upward transmission direction toward the transmission belt;

[0011] The picking cylinder is arranged at the lower end of the conveyor belt, and the arrangement positions of the L-shaped picking rod and the L-shaped transmission rod are staggered with each other in the horizontal direction. When the L-shaped picking rod at the lower part of the picking cylinder picks up the straw and moves to the lower end of the conveyor belt, the L-shaped transmission rod moves upward from the lower part of the L-shaped picking rod to the gap between the L-shaped picking rods and crosses with the L-shaped picking rods to transmit the straw;

[0012] A blocking rod is installed on the middle part of the side of the L-shaped transmission rod away from the transmission direction. The blocking rod forms an acute angle with the outer end of the L-shaped transmission rod, and the end of the blocking rod is rotatably connected to the L-shaped transmission rod; when the L-shaped transmission rod moves to cross the L-shaped picking rod, the blocking rod is located at the opening of the lower L-shaped picking rod; when the L-shaped transmission rod moves to transmit above the conveyor belt, the blocking rod is in a vertical state.

[0013] The integrated straw recycling and crushing device of the present invention greatly improves the straw picking and transmission efficiency by improving the straw transfer method of the picking structure and the transmission structure, can prevent the straw from falling back to the ground from the rear after being picked up, can achieve one-time picking, and improve production efficiency.

[0014] Specifically, the present invention is a straw recycling and crushing integrated device. First, when in use, the device moves forward under the drive of the vehicle body, the straw is located in the forward direction of the vehicle body, and the picking-up barrel starts to rotate. The rotation direction of the picking-up barrel of the present invention is opposite to that of the existing picking-up barrel. The L-shaped hook plate of the existing picking-up barrel is facing outward at the bottom position, that is, facing the forward direction of the vehicle body. Therefore, the L-shaped hook plate at the bottom of the existing picking-up barrel rotates from the inside to the outside and upward to pick up the straw on the ground, that is, the picking direction of the existing L-shaped hook plate at the bottom is the same as the forward direction. The picking-up barrel of the present invention rotates in the opposite direction to that of the existing one. The L-shaped picking rod at the bottom of the picking-up barrel of the present invention faces the inside of the device, and its rotation direction is also from the outside to the inside and upward. Therefore, the picking direction of the L-shaped picking rod at the bottom of the present invention is opposite to the forward direction of the device.

[0015] Secondly, after the existing picking structure picks up the straw and rotates it upwards, the straw slides to the bottom of the transmission structure under the action of gravity, and then is transferred to the inlet of the crushing device through the transmission structure. One problem here is that when the L-shaped hook plate picks up the straw at the bottom and rotates upwards, part of the straw will accumulate at the junction of the hook plate and the rotating drum. It is difficult to transfer it to the conveyor belt due to the obstruction of the hook plate itself. Therefore, it will return to the lower place again with the hook plate and fall behind the picking drum, resulting in insufficient straw picking. The present invention sets the L-shaped picking rod in reverse and rotates the picking drum in reverse, so that when the L-shaped picking rod is rotated to approximately 90° horizontally (not necessarily 90° here, it is determined according to the installation height distance between the conveyor belt and the picking drum, etc.), it can just intersect with the L-shaped transmission rod on the conveyor belt. The rotation direction of the L-shaped transmission rod on the conveyor belt is the same as the rotation direction of the L-shaped picking rod and the openings of the L-rods are all facing upwards. Therefore, the L-shaped transmission rod can smoothly hook up the straw on the L-shaped picking rod from the bottom to the top, so that all the straw on the L-shaped picking rod is transferred; in addition, even if there is some straw that has not been transferred on the L-shaped picking rod, it will fall in front of the picking drum after rotating to the bottom, so it can be picked up again, thereby ensuring that the device can fully pick up the straw in one stroke.

[0016] In addition, the present invention provides a blocking rod on the L-shaped transmission rod. When the L-shaped transmission rod moves to cross the L-shaped picking rod to transfer straw, the blocking rod is at the opening of the lower L-shaped picking rod, that is, the blocking rod limits and gradually presses the straw picked up by the next L-shaped picking rod until the next L-shaped transmission rod crosses the L-shaped picking rod. Therefore, the blocking rod can prevent the straw on the next picking rod from falling off, and gradually press the straw during the rotation process, so that the next L-shaped transmission rod can fully transfer the straw.

[0017] Finally, the present invention arranges L-shaped transmission rods and L-shaped picking rods with staggered designs, which can achieve sufficient staggered intersection between the two in the length direction to ensure sufficient transfer of straw and improve straw picking efficiency. In addition, the special handover structure enables the straw to maintain a horizontal direction when entering the transmission device and being transported to the crushing device.

[0018] In a specific embodiment, the straw feeding device comprises a feeding box, the feeding box comprises a strip-shaped feeding port, and the upper end of the conveyor belt is arranged above the feeding port;

[0019] A plurality of coarse crushing cylinders are coaxially arranged along the length direction of the feed opening in the feed box below the feed opening, and a plurality of cutting plates are vertically arranged in sequence along the circumferential direction on the outer wall of the coarse crushing cylinder. The cutting plates are parallel to the axis of the coarse crushing cylinder, and the rotation speeds of adjacent coarse crushing cylinders are different.

[0020] A strip-shaped feeding port is arranged on the top of the feeding device of the present invention, so that the straw can be kept in a horizontal state after being fed, so that it falls on the coarse crushing cylinder in a direction parallel to the axis of the coarse crushing cylinder. When the straw falls on multiple coarse crushing cylinders, the straw is stuck between adjacent cutting plates. The rotation speeds of adjacent coarse crushing cylinders are different during the rotation of the coarse crushing cylinders. Therefore, the angle between the cutting plates on adjacent coarse crushing cylinders will gradually become smaller. When the cutting plates on adjacent coarse crushing cylinders move to the same plane, the straw is cut. Therefore, through the structural design of the coarse crushing cylinder, the long strip of straw can be preliminarily cut into multiple short strips of straw, and it is ensured that the short straw can be kept in a horizontal state for subsequent transmission, so as to avoid the vertical falling of the straw after cutting by the cutter and affecting the subsequent cutting.

[0021] In a specific embodiment, adjacent coarse crushing drums rotate in the same direction but at different speeds, or the rotation directions of adjacent coarse crushing drums are opposite.

[0022] In a specific embodiment, an inclined transmission plate is arranged below the coarse crushing cylinder, and the transmission plate is divided into a plurality of transmission channels corresponding to the coarse crushing cylinders one by one.

[0023] After the straw is initially cut by rotating through multiple coarse crushing cylinders, it is accumulated between the cutting plates and then falls into the corresponding transmission channel after rotating to the bottom. The straw in different transmission channels is isolated from each other to prevent the straw from changing its transmission direction due to the influence of adjacent straw during transmission, so that the straw can still be transmitted to the crushing device in the horizontal direction.

[0024] In a specific embodiment, cutting tooth plates are vertically arranged on both side surfaces of the end of the cutting plate, and concave teeth are evenly distributed on the outer edge of the cutting tooth plate.

[0025] The present invention arranges cutting tooth plates at both ends of the cutting plate. When the cutting plates of adjacent coarse crushing cylinders gradually overlap to the same plane, two opposite cutting tooth plates can clamp and quickly and effectively cut off the straw, thereby improving the straw cutting efficiency.

[0026] In a specific embodiment, an anti-drop inclined plate is arranged between the top of the conveyor belt and the opening of the feed box. The anti-drop inclined plate is located between the corner of the conveyor belt at the top opening of the straw transmission device and the feed box and is inclined to cover the return channel of the conveyor belt. One end of the anti-drop inclined plate close to the conveyor belt is provided with a groove for the L-shaped transmission rod to pass through. When the L-shaped transmission rod moves to the top of the transmission rod with the straw, the straw can enter the feed box along the anti-drop inclined plate, thereby preventing the straw from falling into the return channel of the conveyor belt. Then the L-shaped transmission rod rotates through the corner of the top of the conveyor belt and passes through the groove and returns to the return channel.

[0027] In a specific embodiment, the straw crushing device includes a crushing box arranged under the transmission plate, and a strip-shaped crushing inlet is opened on the top of the crushing box. A plurality of secondary crushing openings are vertically opened along the length direction of the crushing inlet, and a cutting knife is embedded in the secondary crushing opening. The plurality of cutting knives are respectively facing the center of the transmission channel.

[0028] The straw crushing device provided in the present invention can further crush the roughly cut straw to meet the subsequent use requirements. The roughly cut straw is transmitted to the bottom along the transmission channel, and then enters the crushing box through the strip-shaped crushing entrance, wherein the arrangement structure of multiple secondary crushing openings and cutting knives can further cut the straw into fragments while ensuring that the straw falls horizontally.

[0029] In a specific embodiment, a crushing roller group is arranged below the crushing inlet in the crushing box, and the crushing roller group includes a plurality of crushing rollers meshed in sequence along the vertical circumferential direction, and the axis of the crushing roller is parallel to the crushing inlet; a guide plate is arranged at the center of the plurality of crushing rollers, and the guide plate is formed by two arc-shaped plates to form a "human" structure.

[0030] The crushing roller group provided in the present invention can crush the cut straw fragments into fine powder. The crushing roller group is composed of a plurality of crushing rollers distributed along the circumferential direction, so that the straw fragments falling from the crushing entrance can also fall to the roller groups in other parts for multiple crushing after passing through the two crushing rollers at the top, thereby improving the crushing effect and efficiency. In addition, a guide plate with a "human" structure is also provided at the center of the crushing roller group. The guide plate can guide the straw after passing through the two crushing rollers at the top to the crushing rollers on both sides, and finally flow to the crushing roller at the bottom, thereby achieving full crushing of the straw through multiple crushing.

[0031] In a specific embodiment, a dust reduction chamber connected to the crushing box is arranged on the upper outer wall of the crushing box, an exhaust device is arranged in the dust reduction chamber, and the bottom surface of the inner wall of the dust reduction chamber is a mesh structure; an annular baffle is arranged at the opening connecting the crushing box and the dust reduction chamber, and the upper end of the annular baffle is inclined toward the inner side of the crushing box.

[0032] The present invention provides a dust reduction chamber on the pulverizing box, which can remove and collect the dust generated in the pulverizing process. Specifically, the dust gathers in the dust reduction chamber under the action of the exhaust device, and then enters the outer wall of the chamber through the mesh structure on the bottom surface of the inner wall of the dust reduction chamber for storage so as to be subsequently processed in a unified manner. The arrangement structure of the annular baffle can prevent the dust in the dust reduction chamber from falling back into the pulverizing box, and also prevent non-dust straw fragments from entering the dust reduction chamber under the action of the exhaust device.

[0033] In a specific embodiment, a discharge port is provided at the bottom of the crushing box, a hinge rod is provided at the discharge port, a discharge plate is installed on the hinge rod, and the discharge plate can rotate around the hinge rod to realize the opening and closing of the discharge port. A reset spring is provided between the hinge rod and the discharge plate, and the torsion of the reset spring is set according to the actual situation. When the straw fragments accumulated on the discharge plate reach a certain amount, the discharge plate will resist the torsion of the reset spring and flip downward to make the straw fragments fall into the straw compacting device, and then the discharge plate returns to its original position under the action of the reset spring, which not only realizes the connection between the crushing box and the compacting box, but also ensures that the crushing box and the compacting box are in an isolated state most of the time.

[0034] In a specific embodiment, the straw compacting device includes a compacting box arranged below the discharge port, compacting plates are arranged on both sides of the bottom of the compacting box, and the two compacting plates can be closed along the bottom of the compacting box to form a compacting cavity. A pressing plate is arranged above the compacting cavity, and the pressing plate can move from top to bottom along the height direction of the compacting cavity.

[0035] In the present invention, after the straw fragments enter the compacting box, two compacting plates move toward the center to put the straw fragments into the compacting cavity formed by them, and the compacting plates move downward to compact the straw fragments into blocks.

[0036] In a specific embodiment, a stripping box is provided below the compacting box, an opening is provided at the bottom of the compacting cavity in the compacting box, the opening is covered by a stripping plate, and the bottom of the stripping plate is connected to the bottom of the stripping box through a spring;

[0037] The compacting plate compacts downward to form straw blocks, and continues to compact downward, and the stripping plate moves downward until the compacting plate is flush with the opening, and all the straw blocks enter the stripping box;

[0038] A stripping push plate is arranged on one side of the spring in the stripping box, and the stripping push plate can move horizontally in the direction of the stripping plate to push the straw block to fall off from between the compacting plate and the stripping plate.

[0039] In the present invention, a stripping box is arranged below the compacting box, that is, the stripping plate gradually moves downward during the pressing process of the pressing plate, so that the straw block gradually enters the stripping plate during the pressing process until the pressing plate is flush with the opening, at which time the straw block is completely located in the stripping box, and then the stripping push plate moves horizontally until it fits with the straw block, and then continues to move, the height of the stripping push plate is the same as the height of the straw block, so the stripping push plate is inserted between the pressing plate and the stripping plate until the straw block is completely pushed out, and then the stripping push plate returns to its original position, and the stripping plate moves upward under the reaction force of the spring and returns to the bottom opening of the compacting box.

[0040] The present invention can realize the integrated operation of straw recovery, crushing and pressing through the ingenious connection and structural setting of the straw picking device, the straw transmission device, the straw feeding device, the straw crushing device and the straw compacting device. No human operation is required during the process, which greatly improves the production efficiency.

[0041] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0042] 1. The embodiment of the present invention provides a straw recycling and crushing integrated device, which greatly improves the straw picking and transmission efficiency by improving the straw transfer method of the picking structure and the transmission structure, and can prevent the straw from falling back to the ground from the rear after picking up, so as to achieve one-time picking and improve production efficiency;

[0043] 2. An integrated device for recycling and crushing straw provided by an embodiment of the present invention, by setting an L-shaped picking rod in reverse and rotating the picking cylinder in reverse, so that when the L-shaped picking rod is rotated to about 90 degrees, it can just intersect with the L-shaped transmission rod on the conveyor belt, and the rotation direction of the L-shaped transmission rod on the conveyor belt is the same as the rotation direction of the L-shaped picking rod and the opening of the L rod is facing upward, so that the L-shaped transmission rod can smoothly hook the straw on the L-shaped picking rod from the bottom to the top, so that all the straw on the L-shaped picking rod is transferred;

[0044] 3. A straw recycling and crushing integrated device provided by an embodiment of the present invention, when the straw falls on multiple coarse crushing cylinders, the straw is stuck between adjacent cutting plates. During the rotation of the coarse crushing cylinders, the rotation speeds of the adjacent coarse crushing cylinders are different, so the angle between the cutting plates on the adjacent coarse crushing cylinders will gradually become smaller. When the cutting plates on the adjacent coarse crushing cylinders move to the same plane, the straw is cut, and the long strips of straw can be preliminarily cut into multiple short strips of straw, and the short straw can be kept in a horizontal state for subsequent transmission, so as to avoid the straw falling vertically after being cut by a cutter and affecting the subsequent cutting;

[0045] 4. An integrated device for recycling and crushing straw provided by an embodiment of the present invention, wherein the roughly cut straw is transmitted to the bottom along the transmission channel, and then enters the crushing box through the strip-shaped crushing entrance, wherein the arrangement structure of multiple secondary crushing openings and cutting knives can further cut the straw into fragments while ensuring that the straw falls horizontally;

[0046] 5. An integrated device for recycling and crushing straw provided by an embodiment of the present invention comprises a plurality of crushing rollers distributed along the circumferential direction, so that the straw fragments falling from the crushing entrance can fall to the roller groups at other positions for multiple crushing after passing through the two crushing rollers at the top, thereby improving the crushing effect and efficiency. A guide plate with a herringbone structure is also provided at the center of the crushing roller group, and the guide plate can guide the straw after passing through the two crushing rollers at the top to the crushing rollers on both sides, and finally flow to the crushing roller at the bottom, thereby achieving full crushing of the straw through multiple crushing;

[0047] 6. A straw recycling and crushing integrated device provided in an embodiment of the present invention is provided with a dust reduction chamber, which can remove and collect dust generated during the crushing process, wherein the setting structure of the annular baffle can prevent the dust in the dust reduction chamber from falling back into the crushing box, and also prevent the non-dust straw fragments from entering the dust reduction chamber under the action of the exhaust device;

[0048] 7. An embodiment of the present invention provides an integrated device for recovering and crushing straw. During the downward pressing process of the pressing plate, the stripping plate gradually moves downward, and the straw blocks gradually enter the stripping plate until the pressing plate is flush with the opening. The stripping push plate moves horizontally until it fits with the straw blocks and then continues to move. The height of the stripping push plate is the same as the height of the straw blocks, so the stripping push plate is inserted between the pressing plate and the stripping plate to completely push out the straw blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 A schematic diagram of a straw recycling and crushing integrated device provided in an embodiment of the present invention;

[0051] Figure 2 A schematic diagram of the coordinated structure of a straw picking device and a straw transmission device provided in an embodiment of the present invention;

[0052] Figure 3A schematic diagram of the structure of a barrier rod provided in an embodiment of the present invention;

[0053] Figure 4 A schematic diagram of the top structure of a conveyor belt provided by an embodiment of the present invention;

[0054] Figure 5 A schematic diagram of the structure of a straw feeding device provided in an embodiment of the present invention;

[0055] Figure 6 A schematic diagram of the structure of a cutting plate provided in an embodiment of the present invention;

[0056] Figure 7 A schematic diagram of the crushing inlet structure provided by an embodiment of the present invention;

[0057] Figure 8 A schematic diagram of the structure of a straw crushing device and a straw compacting device provided in an embodiment of the present invention;

[0058] Fig. 9 A schematic diagram of the dust reduction chamber structure provided in an embodiment of the present invention.

[0059] Reference numerals and corresponding parts names:

[0060] 1-straw picking device, 11-picking cylinder, 12-picking rod;

[0061] 2-straw transmission device, 21-transmission belt, 211-anti-fall inclined plate, 212-through slot, 22-transmission rod, 221-blocking rod;

[0062] 3-straw feeding device, 31-feeding box, 32-coarse crushing cylinder, 33-cutting plate, 34-cutting tooth plate, 35-transmission plate;

[0063] 4-straw crushing device, 41-crushing box, 42-crushing entrance, 43-secondary crushing opening, 44-cutting knife, 45-crushing roller group, 46-feeding plate, 47-dust reduction chamber, 48-annular baffle, 49-discharging port, 410-discharging plate;

[0064] 5-straw compacting device, 51-compacting box, 52-compacting plate, 53-pressing plate;

[0065] 6-stripping box, 61-stripping plate, 62-spring, 63-stripping push plate. DETAILED DESCRIPTION

[0066] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0067] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to those of ordinary skill in the art that these specific details do not have to be employed to practice the present invention. In other embodiments, in order to avoid confusing the present invention, well-known structures are not specifically described.

[0068] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0069] In the description of the present invention, the directions or positional relationships indicated by terms such as “front”, “rear”, “left”, “right”, “up”, “down”, “vertical”, “horizontal”, “high”, “low”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0070] Example 1

[0071] like Figure 1-Figure 9 As shown, an embodiment of the present invention provides an integrated device for recycling and crushing straw, comprising a straw picking device 1, a straw transmission device 2, a straw feeding device 3, a straw crushing device 4 and a straw compacting device 5;

[0072] The straw picking device 1 comprises a picking cylinder 11, on which a plurality of rows of picking rods 12 are arranged along the circumferential direction, and each row of picking rods 12 comprises L-shaped picking rods spaced apart along the radial direction of the picking cylinder 11; the L-shaped picking rods located at the lower half of the picking cylinder 11 are arranged toward the side where the straw transmission device 2 is located, and the picking cylinder 11 can rotate around its own axis to drive the L-shaped picking rods at the lower half to rotate away from the movement direction of the device and toward the direction where the straw transmission device 2 is located;

[0073] The straw transmission device 2 comprises an inclined transmission belt 21, on which a plurality of rows of transmission rods 22 are arranged in sequence from top to bottom, and each row of transmission rods 22 comprises L-shaped transmission rods spaced apart in a horizontal direction; the L-shaped transmission rods move in an upward transmission direction toward the transmission belt 21;

[0074] The picking cylinder 11 is arranged at the lower end of the conveyor belt 21, and the arrangement positions of the L-shaped picking rod and the L-shaped transmission rod are staggered with each other in the horizontal direction. When the L-shaped picking rod at the lower part of the picking cylinder 11 picks up the straw and moves to the lower end of the conveyor belt 21, the L-shaped transmission rod moves upward from the lower part of the L-shaped picking rod to the gap between the L-shaped picking rods and crosses with the L-shaped picking rods to transmit the straw;

[0075] A blocking rod 221 is installed in the middle of the side away from the transmission direction of the L-shaped transmission rod 22. The blocking rod 221 forms an acute angle with the outer end of the L-shaped transmission rod 22, and the end of the blocking rod 221 is rotatably connected to the L-shaped transmission rod 22; when the L-shaped transmission rod 22 moves to cross the L-shaped picking rod 12, the blocking rod 221 is located at the opening of the lower L-shaped picking rod 12; when the L-shaped transmission rod 22 moves to transmit above the conveyor belt, the blocking rod 221 is in a vertical state.

[0076] The integrated straw recycling and crushing device of the present invention greatly improves the straw picking and transmission efficiency by improving the straw transfer method of the picking structure and the transmission structure, can prevent the straw from falling back to the ground from the rear after being picked up, can achieve one-time picking, and improve production efficiency.

[0077] Specifically, the present invention is a straw recycling and crushing integrated device. First, when in use, the device moves forward under the drive of the vehicle body, the straw is located in the forward direction of the vehicle body, and the picking-up barrel starts to rotate. The rotation direction of the picking-up barrel of the present invention is opposite to that of the existing picking-up barrel. The L-shaped hook plate of the existing picking-up barrel is facing outward at the bottom position, that is, facing the forward direction of the vehicle body. Therefore, the L-shaped hook plate at the bottom of the existing picking-up barrel rotates from the inside to the outside and upward to pick up the straw on the ground, that is, the picking direction of the existing L-shaped hook plate at the bottom is the same as the forward direction. The picking-up barrel of the present invention rotates in the opposite direction to that of the existing one. The L-shaped picking rod at the bottom of the picking-up barrel of the present invention faces the inside of the device, and its rotation direction is also from the outside to the inside and upward. Therefore, the picking direction of the L-shaped picking rod at the bottom of the present invention is opposite to the forward direction of the device.

[0078] Secondly, after the existing picking structure picks up the straw and rotates it upwards, the straw slides to the bottom of the transmission structure under the action of gravity, and then is transferred to the inlet of the crushing device through the transmission structure. One problem here is that when the L-shaped hook plate picks up the straw at the bottom and rotates upwards, part of the straw will accumulate at the junction of the hook plate and the rotating drum. It is difficult to transfer it to the conveyor belt due to the obstruction of the hook plate itself. Therefore, it will return to the lower place again with the hook plate and fall behind the picking drum, resulting in insufficient straw picking. The present invention sets the L-shaped picking rod in reverse and rotates the picking drum in reverse, so that when the L-shaped picking rod is rotated to about 90 degrees, it is not necessarily 90 degrees, which is specifically determined according to the installation height distance between the conveyor belt and the picking drum, so that it can just intersect with the L-shaped conveyor rod on the conveyor belt. The rotation direction of the L-shaped conveyor rod on the conveyor belt is the same as the rotation direction of the L-shaped picking rod and the opening of the L rod is facing upward. Therefore, the L-shaped conveyor rod can smoothly hook the straw on the L-shaped picking rod from the bottom to the top, so that all the straw on the L-shaped picking rod is transferred; in addition, even if there is some straw that has not been transferred on the L-shaped picking rod, it will fall in front of the picking drum after rotating to the bottom, so it can be picked up again, thereby ensuring that the device can fully pick up the straw in one stroke.

[0079] In addition, the present invention sets a blocking rod on the L-shaped transmission rod. When the L-shaped transmission rod moves to cross the L-shaped picking rod to transfer straw, the blocking rod is at the opening of the lower L-shaped picking rod, that is, the blocking rod limits and gradually presses the straw picked up by the next L-shaped picking rod until the next L-shaped transmission rod crosses the L-shaped picking rod. Therefore, the blocking rod can prevent the straw on the next picking rod from falling off, and gradually presses the straw during the rotation process, so that the next L-shaped transmission rod can fully transfer the straw. The blocking rod can be a straight rod or an arc rod.

[0080] Finally, the present invention arranges L-shaped transmission rods and L-shaped picking rods with staggered designs, which can achieve sufficient staggered intersection between the two in the length direction to ensure sufficient transfer of straw and improve straw picking efficiency. In addition, the special handover structure enables the straw to maintain a horizontal direction when entering the transmission device and being transported to the crushing device.

[0081] In a specific embodiment, the straw feeding device 3 includes a feeding box 31, the feeding box includes a strip-shaped feeding port, and the upper end of the conveyor belt 21 is arranged above the feeding port;

[0082] A plurality of coarse crushing cylinders 32 are coaxially arranged along the length direction of the feed opening in the feed box, and a plurality of cutting plates 33 are vertically arranged in sequence along the circumferential direction on the outer wall of the coarse crushing cylinder 32. The cutting plates 33 are parallel to the axis of the coarse crushing cylinder 32, and the rotation speeds of adjacent coarse crushing cylinders 32 are different.

[0083] A strip-shaped feeding port is arranged on the top of the feeding device of the present invention, so that the straw can be kept in a horizontal state after being fed, so that it falls on the coarse crushing cylinder in a direction parallel to the axis of the coarse crushing cylinder. When the straw falls on multiple coarse crushing cylinders, the straw is stuck between adjacent cutting plates. The rotation speeds of adjacent coarse crushing cylinders are different during the rotation of the coarse crushing cylinders. Therefore, the angle between the cutting plates on adjacent coarse crushing cylinders will gradually become smaller. When the cutting plates on adjacent coarse crushing cylinders move to the same plane, the straw is cut. Therefore, through the structural design of the coarse crushing cylinder, the long strip of straw can be preliminarily cut into multiple short strips of straw, and it is ensured that the short straw can be kept in a horizontal state for subsequent transmission, so as to avoid the vertical falling of the straw after cutting by the cutter and affecting the subsequent cutting.

[0084] In a specific embodiment, adjacent coarse crushing cylinders 32 rotate in the same direction but at different speeds, or the rotation directions of adjacent coarse crushing cylinders 32 are opposite.

[0085] In a specific embodiment, an inclined transmission plate 35 is disposed below the coarse crushing cylinder 32 , and the transmission plate 35 is divided into a plurality of transmission channels corresponding to the coarse crushing cylinders 32 one by one.

[0086] After the straw is initially cut by rotating through multiple coarse crushing cylinders, it is accumulated between the cutting plates and then falls into the corresponding transmission channel after rotating to the bottom. The straw in different transmission channels is isolated from each other to prevent the straw from changing its transmission direction due to the influence of adjacent straw during transmission, so that the straw can still be transmitted to the crushing device in the horizontal direction.

[0087] In a specific embodiment, cutting tooth plates 34 are vertically arranged on both side surfaces of the end of the cutting plate, and concave teeth are evenly distributed on the outer edge of the cutting tooth plate 34 .

[0088] The present invention arranges cutting tooth plates at both ends of the cutting plate. When the cutting plates of adjacent coarse crushing cylinders gradually overlap to the same plane, two opposite cutting tooth plates can clamp and quickly and effectively cut off the straw, thereby improving the straw cutting efficiency.

[0089] In a specific embodiment, an anti-drop inclined plate 211 is provided between the top of the conveyor belt 21 and the opening of the feed box 31. The anti-drop inclined plate 211 is located between the corner of the conveyor belt 21 at the top opening of the straw transmission device 2 and the feed box and is inclined to cover the return channel of the conveyor belt 21. A through groove 212 for an L-shaped transmission rod to pass through is provided at one end of the anti-drop inclined plate close to the conveyor belt. When the L-shaped transmission rod moves to the top of the transmission rod with the straw, the straw can enter the feed box along the anti-drop inclined plate, thereby preventing the straw from falling into the return channel of the conveyor belt 21, and then the L-shaped transmission rod rotates through the corner of the top of the conveyor belt 21 and passes through the through groove and returns to the return channel.

[0090] In a specific embodiment, the straw crushing device 4 includes a crushing box 41 arranged below the transmission plate 35, and a strip-shaped crushing inlet 42 is opened on the top of the crushing box 41. A plurality of secondary crushing openings 43 are vertically opened along the length direction at the crushing inlet 42, and a cutting knife 44 is embedded in the secondary crushing opening 43. The plurality of cutting knives 44 are respectively facing the center of the transmission channel.

[0091] The straw crushing device provided in the present invention can further crush the roughly cut straw to meet the subsequent use requirements. The roughly cut straw is transmitted to the bottom along the transmission channel, and then enters the crushing box through the strip-shaped crushing entrance, wherein the arrangement structure of multiple secondary crushing openings and cutting knives can further cut the straw into fragments while ensuring that the straw falls horizontally.

[0092] In a specific embodiment, a crushing roller group 45 is arranged below the crushing entrance 42 in the crushing box 41, and the crushing roller group 45 includes a plurality of crushing rollers meshed in sequence along the vertical circumferential direction, and the axis of the crushing roller is parallel to the crushing entrance 42; a guide plate 46 is arranged at the center of the plurality of crushing rollers, and the guide plate 46 is formed of two arc-shaped plates to form a "human" structure.

[0093] The crushing roller group provided in the present invention can crush the cut straw fragments into fine powder. The crushing roller group is composed of a plurality of crushing rollers distributed along the circumferential direction, so that the straw fragments falling from the crushing entrance can also fall to the roller groups in other parts for multiple crushing after passing through the two crushing rollers at the top, thereby improving the crushing effect and efficiency. In addition, a guide plate with a "human" structure is also provided at the center of the crushing roller group. The guide plate can guide the straw after passing through the two crushing rollers at the top to the crushing rollers on both sides, and finally flow to the crushing roller at the bottom, thereby achieving full crushing of the straw through multiple crushing.

[0094] In a specific embodiment, a dust reduction chamber 47 connected to the crushing box 41 is arranged on the upper outer wall of the crushing box 41, an exhaust device is arranged in the dust reduction chamber 47, and the bottom surface of the inner wall of the dust reduction chamber 47 is a mesh structure; an annular baffle 48 is arranged at the opening connecting the crushing box 41 and the dust reduction chamber 47, and the upper end of the annular baffle 48 is inclined toward the inner side of the crushing box 41.

[0095] The present invention provides a dust reduction chamber on the pulverizing box, which can remove and collect the dust generated in the pulverizing process. Specifically, the dust gathers in the dust reduction chamber under the action of the exhaust device, and then enters the outer wall of the chamber through the mesh structure on the bottom surface of the inner wall of the dust reduction chamber for storage so as to be subsequently processed in a unified manner. The arrangement structure of the annular baffle can prevent the dust in the dust reduction chamber from falling back into the pulverizing box, and also prevent non-dust straw fragments from entering the dust reduction chamber under the action of the exhaust device.

[0096] In a specific embodiment, a discharge port 49 is provided at the bottom of the crushing box 41, and a hinge rod is provided at the discharge port 49, and a discharge plate 410 is installed on the hinge rod, and the discharge plate 410 can rotate around the hinge rod to realize the opening and closing of the discharge port. Among them, a reset spring is provided between the hinge rod and the discharge plate, and the torsion of the reset spring is set according to the actual situation. When the straw fragments accumulated on the discharge plate reach a certain amount, the discharge plate will resist the torsion of the reset spring and flip downward to make the straw fragments fall into the straw compacting device, and then the discharge plate returns to its original position under the action of the reset spring, which not only realizes the connection between the crushing box and the compacting box, but also ensures that the crushing box and the compacting box are in an isolated state most of the time.

[0097] In a specific embodiment, the straw compacting device 5 includes a compacting box 51 arranged below the discharge port 47, and compacting plates 52 are arranged on both sides of the bottom of the compacting box 51. The two compacting plates 52 can be closed along the bottom of the compacting box 51 to form a compacting cavity. A pressing plate 53 is arranged above the compacting cavity, and the pressing plate 53 can move from top to bottom along the height direction of the compacting cavity.

[0098] In the present invention, after the straw fragments enter the compacting box, two compacting plates move toward the center to put the straw fragments into the compacting cavity formed by them, and the compacting plates move downward to compact the straw fragments into blocks.

[0099] In a specific embodiment, a stripping box 6 is provided below the compacting box 51, and an opening is provided at the bottom of the compacting cavity in the compacting box 51, and the opening is covered with a stripping plate 61, and the bottom of the stripping plate 61 is connected to the bottom of the stripping box 6 through a spring 62;

[0100] The compacting plate 52 compacts downward to form straw blocks, and continues to compact downward, and the stripping plate 61 moves downward until the compacting plate 52 is flush with the opening, and all the straw blocks enter the stripping box 6;

[0101] A stripping push plate 63 is provided on one side of the spring 62 in the stripping box 6. The stripping push plate 63 can move horizontally toward the direction of the stripping plate 61 to push the straw block to fall off from between the compacting plate and the stripping plate.

[0102] In the present invention, a stripping box is arranged below the compacting box, that is, the stripping plate gradually moves downward during the pressing process of the pressing plate, so that the straw block gradually enters the stripping plate during the pressing process until the pressing plate is flush with the opening, at which time the straw block is completely located in the stripping box, and then the stripping push plate moves horizontally until it fits with the straw block, and then continues to move, the height of the stripping push plate is the same as the height of the straw block, so the stripping push plate is inserted between the pressing plate and the stripping plate until the straw block is completely pushed out, and then the stripping push plate returns to its original position, and the stripping plate moves upward under the reaction force of the spring and returns to the bottom opening of the compacting box.

[0103] The present invention can realize the integrated operation of straw recovery, crushing and pressing through the ingenious connection and structural setting of the straw picking device, the straw transmission device, the straw feeding device, the straw crushing device and the straw compacting device. No human operation is required during the process, which greatly improves the production efficiency.

[0104] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A straw recycling and crushing device, characterized in that: It comprises a straw picking device (1), a straw transmission device (2), a straw feeding device (3), a straw crushing device (4) and a straw compacting device (5); The straw picking device (1) comprises a picking cylinder (11), on which a plurality of rows of picking rods (12) are arranged along a circumferential direction, and each row of picking rods (12) comprises L-shaped picking rods spaced apart along a radial direction of the picking cylinder (11); the L-shaped picking rods located in the lower half of the picking cylinder (11) are arranged toward a side where the straw transmission device (2) is located, and the picking cylinder (11) can rotate around its own axis to drive the L-shaped picking rods in the lower half to rotate away from a movement direction of the device and toward a direction where the straw transmission device (2) is located; The straw transmission device (2) comprises a transmission belt (21) arranged obliquely, a plurality of rows of transmission rods (22) being arranged on the transmission belt (21) in sequence from top to bottom, each row of transmission rods (22) comprising L-shaped transmission rods spaced apart in a horizontal direction; the L-shaped transmission rods move in an upward transmission direction toward the transmission belt (21); The picking cylinder (11) is arranged at the lower end of the conveyor belt (21), and the arrangement positions of the L-shaped picking rod and the L-shaped conveyor rod are staggered with each other in the horizontal direction. When the L-shaped picking rod at the lower part of the picking cylinder (11) picks up the straw and moves to the lower end of the conveyor belt (21), the L-shaped conveyor rod moves upward from the lower part of the L-shaped picking rod to the gap between the L-shaped picking rods and crosses with the L-shaped picking rods to transfer the straw; A blocking rod (221) is installed in the middle of a side away from the transmission direction on the L-shaped transmission rod (22), and an acute angle is formed between the blocking rod (221) and the outer end of the L-shaped transmission rod (22), and the end of the blocking rod (221) is rotatably connected to the L-shaped transmission rod (22); when the L-shaped transmission rod (22) moves to cross the L-shaped picking rod (12), the blocking rod (221) is located at the opening of the lower L-shaped picking rod (12); when the L-shaped transmission rod (22) moves to transmit above the conveyor belt, the blocking rod (221) is in a vertical state.

2. The integrated device for recycling and crushing straw according to claim 1, characterized in that: The straw feeding device (3) comprises a feeding box (31), the feeding box comprises a strip-shaped feeding port, and the upper end of the conveyor belt (21) is arranged above the feeding port; A plurality of coarse crushing cylinders (32) are coaxially arranged along the length direction of the feed opening in the feed box, and a plurality of cutting plates (33) are vertically arranged in sequence along the circumferential direction on the outer wall of the coarse crushing cylinder (32). The cutting plates (33) are parallel to the axis of the coarse crushing cylinder (32), and the rotation speeds of adjacent coarse crushing cylinders (32) are different.

3. The integrated device for recycling and crushing straw according to claim 2, characterized in that: An inclined transmission plate (35) is arranged below the coarse crushing cylinder (32), and the transmission plate (35) is divided into a plurality of transmission channels corresponding to the coarse crushing cylinders (32) one by one.

4. The integrated device for recycling and crushing straw according to claim 2, characterized in that: Cutting tooth plates (34) are vertically arranged on both side surfaces of the end of the cutting plate, and concave teeth are evenly distributed on the outer edge of the cutting tooth plate (34).

5. The integrated device for recycling and crushing straw according to claim 3, characterized in that: The straw crushing device (4) comprises a crushing box (41) arranged below the transmission plate (35), a strip-shaped crushing inlet (42) is provided at the top of the crushing box (41), a plurality of secondary crushing openings (43) are vertically provided at the crushing inlet (42) along the length direction, a cutting knife (44) is embedded in the secondary crushing opening (43), and the plurality of cutting knives (44) are respectively opposite to the center of the transmission channel.

6. The integrated device for recycling and crushing straw according to claim 5, characterized in that: A crushing roller group (45) is arranged below the crushing inlet (42) in the crushing box (41), and the crushing roller group (45) includes a plurality of crushing rollers arranged in a meshing relationship in sequence along a vertical circumferential direction, and the axes of the crushing rollers are parallel to the crushing inlet (42); a guide plate (46) is arranged at the center of the plurality of crushing rollers, and the guide plate (46) is formed of two arc-shaped plates to form a "human" structure.

7. The integrated device for recycling and crushing straw according to claim 6, characterized in that: A dust reduction cavity (47) communicating with the crushing box (41) is provided on the upper outer wall of the crushing box (41), an exhaust device is provided in the dust reduction cavity (47), and the bottom surface of the inner wall of the dust reduction cavity (47) is in a mesh structure; an annular baffle (48) is provided at the opening communicating with the crushing box (41) and the dust reduction cavity (47), and the upper end of the annular baffle (48) is inclined toward the inner side of the crushing box (41).

8. The integrated device for recycling and crushing straw according to claim 5, characterized in that: The bottom of the crushing box (41) is provided with a discharge port (49), a hinged rod is provided at the discharge port (49), a discharge plate (410) is mounted on the hinged rod, and the discharge plate (410) can rotate around the hinged rod to realize the opening and closing of the discharge port.

9. The integrated device for recycling and crushing straw according to claim 8, characterized in that: The straw compacting device (5) comprises a compacting box (51) arranged below the discharge port (47), compacting plates (52) are arranged on both sides of the bottom of the compacting box (51), and the two compacting plates (52) can be closed along the bottom of the compacting box (51) to form a compacting cavity, and a pressing plate (53) is arranged above the compacting cavity, and the pressing plate (53) can move from top to bottom along the height direction of the compacting cavity.

10. The integrated device for recycling and crushing straw according to claim 9, characterized in that: A stripping box (6) is arranged below the compacting box (51), an opening is arranged at the bottom of the compacting cavity in the compacting box (51), and a stripping plate (61) covers the opening, and the stripping plate (61) is connected to the bottom of the stripping box (6) through a spring (62) at the bottom; The compacting plate (52) compacts downward to form straw blocks, and continues to compact downward, and the stripping plate (61) moves downward until the compacting plate (52) is flush with the opening, and all the straw blocks enter the stripping box (6); A stripping push plate (63) is provided on one side of the spring (62) in the stripping box (6), and the stripping push plate (63) can move horizontally in the direction of the stripping plate (61) to push the straw block to fall off from between the compacting plate and the stripping plate.

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