Straw rolling and bundling chamber

Abstract

The straw rolling and bundling chamber comprises a machine body, steel rollers are arranged in the machine body in the circumferential direction of the inner wall of the machine body, and the length direction of the steel rollers is the same as that of the machine body. A conical disc body is arranged in the machine body and is perpendicular to the length direction of the machine body; the winding cavity is reserved between the conical disc body and the side wall of the end portion of the machine body, after straw enters the winding cavity, the straw can be rapidly wound on the conical disc body under the assistance of the conical disc body, and rapid forming of a rotary grass core is achieved. The utility model discloses a straw rolling and bundling chamber, in particular to a rolling and bundling chamber in a straw bundling machine, straws entering the rolling and bundling chamber can quickly form straw bundles from straw cores under the matching of a conical disc and a steel roller, the bundling effect is improved, and the phenomenon that a feeding port is blocked due to the fact that the straws cannot rotate along with the steel roller at the initial feeding stage is avoided. The conical disc can enable the straw to be thrown up and wound when the feeding amount of the straw is small.

Description

Technical Field

[0001] This utility model belongs to the field of straw baling technology, and in particular relates to a straw baling chamber. Background Technology

[0002] my country produces approximately 800 million tons of crop straw annually. Due to its dispersed, loose, and highly seasonal nature, harvesting, storage, transportation, and utilization are difficult, leading to indiscriminate burning, resource waste, and environmental pollution. Straw balers are used to compress loose straw into high-density bales, and mechanized baling and harvesting are a prerequisite for promoting the comprehensive utilization of straw. Currently, the level of mechanized straw baling and harvesting in my country is low, with annual baling capacity far below 10% of annual straw production. Round balers, invented in the mid-20th century, have seen significant development due to their simple structure, low power consumption, and high efficiency. However, due to limited basic research on baling tailored to my country's agronomic and straw characteristics, the developed straw round balers suffer from poor adaptability. Therefore, my country urgently needs to develop efficient and suitable straw round balers. In-depth research on straw baling is therefore crucial for promoting independent innovation in straw round balers, sustainable development of agricultural machinery, comprehensive utilization of straw, and environmental protection.

[0003] Patent application CN118805558A discloses a traction-type rice straw secondary cutting double-pickup round baler and its usage method, including a cutting double-pickup device, a gearbox above the cutting double-pickup device, and a bundling chamber formed by a front chamber and a rear chamber behind the cutting double-pickup device; a wrapping net device for bundling straw bales is provided above the front of the front chamber; the cutting double-pickup device includes a picker I, a horizontal disc cutter, and a picker II arranged sequentially from front to back; the cutting double-pickup device is provided with a feeding device, which includes a feeding roller I located above and behind the picker I, a feeding roller II located above and in front of the picker II, an auger located above and behind the picker II, and a feeding roller III located above and behind the auger; multiple rollers for forming the straw bale core and pressing the straw bale are arranged sequentially on the inner circumference of the bundling chamber. This invention enables the collection of rice straw residues and standing stalks, thereby improving the collection rate of rice straw by round balers.

[0004] During operation, when the straw bales reach the preset density, the electrical system activates the wrapping device to bind the straw bales. After binding, the rear compartment is opened by the hydraulic system, and the straw bales roll out of the bundling chamber under the action of the unbundling device (as described in the instruction manual). In other words, when the straw is wound in the bundling chamber, it utilizes the friction generated by the rotation of the steel rollers, and is finally bound by the rope / net wrapping device. In the initial stage of straw feeding, a small amount of straw cannot rotate with the steel rollers in time because its own weight is too small to exert pressure on the steel rollers. The friction is very small and insufficient to provide the winding force to throw the straw back and form a rotating straw core. This results in the straw accumulating on the surface of the steel rollers at the feeding inlet, only receiving a very weak frictional winding traction force from the lower part. Since the straw core does not rotate in time, it gradually becomes clogged, requiring frequent maintenance. Utility Model Content

[0005] The present invention aims to provide a straw bundling chamber with a simple structure and good performance.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] The straw baling chamber includes a machine body, inside which are arranged steel rollers along the circumference of the inner wall of the machine body, with the length direction of the steel rollers being the same as the length direction of the machine body; a conical disc is provided at the first end of the inner wall of the machine body, the conical disc being perpendicular to the length direction of the machine body; a winding cavity is reserved between the conical disc and the second end of the inner wall of the machine body; the conical disc includes a first-stage conical disc, a second-stage conical disc, and a third-stage conical disc, the first-stage conical disc being rotatably connected to the machine body and being retractably housed within the second-stage conical disc; the second-stage conical disc being retractably housed within the third-stage conical disc, and the third-stage conical disc being fixedly connected to the first end of the inner wall of the machine body.

[0008] The outer side of the machine body is equipped with a base plate, and a drive motor is installed on the base plate. The drive motor drives the first-order conical disk to rotate.

[0009] The first-stage conical disk has a transmission hole, and a main shaft is installed in the transmission hole. The length direction of the main shaft is the same as the length direction of the machine body. The drive motor drives the first-stage conical disk to rotate through the main shaft. The second-stage conical disk has a first set of holes, and the first-stage conical disk can be telescopically installed in the first set of holes. The third-stage conical disk has a second set of holes, and the second-stage conical disk can be telescopically installed in the second set of holes.

[0010] The outer wall of the first-order conical disk is provided with a first spiral protrusion, and the inner wall of the first hole of the second-order conical disk is provided with a first spiral guide rail in accordance with the first spiral protrusion; the outer wall of the second-order conical disk is provided with a second spiral protrusion, and the inner wall of the second hole of the third-order conical disk is provided with a second spiral guide rail in accordance with the second spiral protrusion.

[0011] The first-order, second-order, and third-order conical disks are respectively provided with blades spirally arranged along the disk surface of the first-order, second-order, and third-order conical disks.

[0012] A drive motor is connected to a transmission gear and a sleeve that cooperate with each other. The outer wall of the sleeve is provided with transmission teeth that mesh with the transmission gear. The inner wall of the sleeve is connected to the main shaft for transmission.

[0013] The inner wall of the sleeve is provided with a helical thread, and the spindle is provided with a helical gear that matches the helical thread.

[0014] The base plate is provided with a first fixed seat and a second fixed seat. Both the first fixed seat and the second fixed seat are provided with guide sleeves. The main shaft passes through the guide sleeves and is mounted on the first fixed seat and the second fixed seat.

[0015] Through the above technical solutions, the technical effects of this utility model are as follows: 1. This utility model discloses a straw baler, especially the bundling chamber in the straw baler. The straw entering the bundling chamber will quickly form bales from the straw core under the cooperation of the conical disc and the steel roller, improving the bundling effect and avoiding the phenomenon of blockage at the feeding inlet caused by the straw not rotating with the steel roller in the initial feeding stage. The conical disc can also make the straw be thrown up and wrapped even when the straw feeding amount is relatively small. 2. The combination of the conical disc and the steel roller, in the initial stage of straw entering, is subjected to the rolling pressure of the outer wall of the conical disc and the circumferential rolling pressure provided by the steel roller, generating a strong winding traction force, driving the straw to roll up and move inward along the top surface of the conical disc, thereby accelerating the formation of the rotating straw core, increasing the density of the inner layer of the bale, making it compact, improving the working efficiency, and at the same time avoiding the occurrence of blockage. 3. The first-order, second-order, and third-order conical discs allow for the extension and retraction of the conical disc body. After winding, the conical disc body withdraws from the straw bale, ensuring the straw bale can be used for subsequent operations. 4. The blades improve the adhesion of the conical disc body to the straw, allowing the straw to wind better onto the conical disc body and preventing clogging. 5. The transmission gear sleeve and helical gear work together to achieve the extension and retraction of the conical disc body. 6. The guide sleeves on the first and second fixed seats ensure the horizontal movement of the main shaft, facilitating the extension and retraction of the conical disc body; they also ensure the rotational movement of the conical disc body driven by the main shaft. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the structure after removing the shell;

[0018] Figure 3 This is a schematic diagram of a first-order conical disk structure;

[0019] Figure 4 This is a schematic diagram of a second-order conical disk structure;

[0020] Figure 5This is a schematic diagram of a three-order conical disk structure.

[0021] 1-Machine body, 2-Steel roller, 3-Feeding inlet, 31-Winding cavity, 4-Drive motor, 5-Base plate, 6-Main shaft, 7-Conical disc, 8-Transmission gear, 9-Sleeve, 10-Herring thread, 11-Guide sleeve, 12-First fixed seat, 13-Second fixed seat, 14-First-stage conical disc, 15-Second-stage conical disc, 16-Third-stage conical disc, 17-Blade, 18-First helical protrusion, 19-Transmission hole, 20-Second threaded protrusion, 21-First sleeve hole, 22-First helical guide rail, 24-Second sleeve hole, 25-Second helical guide rail. Detailed Implementation

[0022] This application discloses a straw bundling chamber in which straw is bundled. It is a component of a straw baler. This embodiment only improves the straw bundling chamber in the straw baler. Other parts can be made using existing technologies. Other parts, such as the transmission part and the hydraulic unbundling part, can all be made using existing technologies.

[0023] Among them, such as Figures 1-3 As shown, this straw baling chamber includes a machine body 1. A feeding inlet 3 is located on one side of the machine body 1, and a baling outlet is located on the other side. Straw enters the machine body 1 through the feeding inlet 3, and the baleed straw exits from the baling outlet. Both the feeding inlet 3 and the baling outlet are existing, mature technologies, and this embodiment does not involve any improvements to these parts. Additionally, it should be noted that a hydraulic unbaling device is connected to the baling outlet. When the hydraulic unbaling device is working, the baling outlet will leak, and the baleed straw will roll out of the machine body 1.

[0024] Furthermore, steel rollers 2 are arranged circumferentially along the inner wall of the machine body 1 within the machine body 1. The length direction of the steel rollers 2 is the same as the length direction of the machine body 1, and each steel roller 2 rotates around its own central axis. The installation of steel rollers 2 within the machine body 1 is also a mature existing technology, and this embodiment does not involve any improvement in this part.

[0025] A conical disc 7 is provided inside the machine body 1, and the conical disc 7 is surrounded by a steel roller 2. The conical disc 7 is perpendicular to the length direction of the machine body 1, and therefore also perpendicular to the length direction of the steel roller 2. During installation, the conical disc 7 is placed on the first end of the machine body 1. At the same time, a winding cavity 31 is reserved between the conical disc 7 and the second end of the machine body 1. In this way, the straw fed into the machine body 1 will be wound in the winding cavity 31 and finally bundled.

[0026] The purpose of setting the conical disc 7 in this embodiment is as follows: by setting the conical disc 7, the straw is subjected to the rolling pressure of the outer wall of the conical disc 7 and the circumferential rolling pressure provided by the steel roller 5 in the early stage of entering, generating a strong winding traction force, which drives the straw to roll up and move along the front end face and rear end face of the conical disc 7, thereby accelerating the formation of rotating straw core, increasing the density of the inner layer of the straw bale, making it compact, improving work efficiency, and at the same time avoiding the occurrence of blockage.

[0027] Regarding the configuration of the conical disc 7: The conical disc 7 includes a first-stage conical disc 14, a second-stage conical disc 15, and a third-stage conical disc 16, with the third-stage conical disc fixed to the first section of the inner wall of the machine body. During setup, the first-stage conical disc 14 is retractably housed within the second-stage conical disc 15; the second-stage conical disc 15 is retractably housed within the third-stage conical disc 16. During operation, when retraction is required, the first-stage conical disc 14 is retracted into the second-stage conical disc 15, and the second-stage conical disc 15 is retracted into the third-stage conical disc 16. By retracting the first-stage conical disc 14, second-stage conical disc 15, and third-stage conical disc 16, it is convenient to remove the straw bale from the conical disc 7, thus facilitating subsequent operations.

[0028] To facilitate the retraction of the first-stage conical disc 14, the second-stage conical disc 15, and the third-stage conical disc 16, the first-stage conical disc 14 is provided with a transmission hole 19, and a main shaft 6 is installed in the transmission hole 19. The length direction of the main shaft 6 is the same as the length direction of the machine body 1, and the main shaft 6 drives the first-stage conical disc 14 to rotate. At the same time, the second-stage conical disc 15 is provided with a first sleeve hole 21, and the first-stage conical disc 14 can be telescopically installed in the first sleeve hole 21. The third-stage conical disc 16 is provided with a second sleeve hole 24, and the second-stage conical disc 15 can be telescopically installed in the second sleeve hole 24.

[0029] To ensure the stability of the first-order conical disk 14 moving within the second-order conical disk 15 and the stability of the second-order conical disk 15 moving within the third-order conical disk 16, a first spiral protrusion 18 is provided on the outer wall of the first-order conical disk 14, and a first spiral guide rail 22 is provided on the inner wall of the first sleeve hole 21 of the second-order conical disk 15 to match the first spiral protrusion 18; a second spiral protrusion 2320 is provided on the outer wall of the second-order conical disk 15, and a second spiral guide rail 25 is provided on the inner wall of the second sleeve hole 24 of the third-order conical disk 16 to match the second spiral protrusion 20. In addition, the third-order conical disk 16 is fixed on the inner wall of the machine body 1.

[0030] Thus, in the initial stage of setup, the main shaft 6 rotates, driving the first-order conical disk 14 to rotate. Since the first-order conical disk 14 and the second-order conical disk 15 cooperate with each other through the first helical protrusion 18 and the first helical guide rail 22, when the first-order conical disk 14 rotates, the second-order conical disk 15 moves together with the third-order conical disk 16. At this time, the second-order conical disk 15 is stationary, and when the first-order conical disk 14 rotates, it will move relative to the second-order conical disk 15, thereby causing the first-order conical disk 14 to extend out from the second-order conical disk 15. When the two move relative to each other to the end of the helical guide rail, the second-order conical disk 15 rotates with the first-order conical disk 14, causing the second-order conical disk 15 to extend out from the third-order conical disk 16.

[0031] To further improve the effect, the first-order conical disk 14, the second-order conical disk 15 and the third-order conical disk 16 are respectively provided with spiral blades 17 arranged along the disk surface of the first-order conical disk 14, the second-order conical disk 15 and the third-order conical disk 16. The spiral blades 17 can improve the adhesion to the straw and accelerate the formation of the rotating straw core.

[0032] During operation, to drive the first-order conical disc 14 and the second-order conical disc 15 to rotate in or out of the third-order conical disc 16, a drive motor 4 is mounted on the main shaft 6. Simultaneously, a base plate 5 is mounted on the outside of the machine body 1, and the drive motor 4 is mounted on the base plate 5. The drive motor 4 drives the rotation of the main shaft 6, thereby causing the first-order conical disc 14 and the second-order conical disc 15 to rotate in and out. Furthermore, a transmission gear 8 is connected to the drive motor 4, and a sleeve 9 meshes with the transmission gear 8. The outer wall of the sleeve 9 has transmission teeth that mesh with the transmission gear 8. A helical thread 10 is provided on the inner wall of the sleeve 9, and a helical gear is provided on the main shaft 6 to mate with the helical thread 10. When the drive motor drives the sleeve to rotate, the helical thread 10 and the helical gear mesh, allowing the main shaft 6 to move back and forth, thus ensuring the retraction or extension of the conical disc.

[0033] To ensure the smooth movement of the spindle 6, a first fixed seat 12 and a second fixed seat 13 are provided on the base plate 5. Guide sleeves 11 are provided on both the first fixed seat 12 and the second fixed seat 13. The spindle 6 passes through the guide sleeves 11 onto the first fixed seat 12 and the second fixed seat 13.

[0034] During operation, before the straw is fed in, the drive motor 4 rotates, the transmission gear 8 rotates, and the sleeve 9 rotates. The rotation of the sleeve 9 causes the main shaft 6 to rotate and move horizontally inside the sleeve 9. The rotation of the main shaft 6 drives the first-stage conical disk 14 to rotate. When the first-stage conical disk 14 rotates, it extends out from the second-stage conical disk 15 under the action of the first helical protrusion 18 and the first helical guide rail 22. The horizontal movement of the main shaft 6 inside the sleeve 9 adapts to the extension of the first-stage conical disk 14 from the second-stage conical disk 15.

[0035] After the first-order conical disk 14 extends out from the second-order conical disk 15, the main shaft 6 continues to rotate, so that the second-order conical disk 15 extends out from the third-order conical disk 16 under the action of the second helical protrusion 20 and the second helical guide rail 25. The horizontal movement of the main shaft 6 in the sleeve 9 also adapts to the process of the second-order conical disk 15 extending out from the third-order conical disk 16.

[0036] Subsequently, straw is fed in, and the rotation of steel roller 2 causes the straw to rotate within the winding cavity 31. When there is relatively little straw, it rotates around the conical disc 7. The straw is wound around the conical disc 7, forming quickly. The spiral blades 17 also accelerate the forming process, greatly reducing the occurrence of blockage. As straw is continuously fed in, it is eventually bundled. After the straw is bundled, the first-stage conical disc 14 and the second-stage conical disc 15 need to be retracted, so that the first-stage conical disc 14 and the second-stage conical disc 15 are removed from the straw bundle.

[0037] The exit process is as follows: the drive motor 4 drives the main shaft 6 to rotate in the opposite direction. During the rotation, the first-order conical disk 14 rotates relative to the second-order conical disk 15 under the drive of the main shaft 6 and retracts into the second-order conical disk 15; the second-order conical disk 15 rotates relative to the third-order conical disk 16 and retracts into the third-order conical disk 16.

[0038] It is important to note here that, since both the first-order and second-order cone discs are conical with their smaller ends facing the winding cavity 31, the resistance is minimal when they retract. By retracting the first-order cone disc into the second-order cone disc, and the second-order cone disc into the third-order cone disc, it is easier for the bales to detach from the cone discs, thus facilitating subsequent operations on the bales.

[0039] To verify the effect, a cylindrical section with a thickness of 50 mm was randomly selected from the top surface of the cone disc 7, and four ring layers were divided along the circumference of each section. The results showed that the density of the inner and outer ring layers of each section of the bale was basically the same, which effectively improved the baling operation.

[0040] This utility model discloses a straw bundling chamber, especially a bundling chamber in a straw baler. The straw entering the bundling chamber will quickly form a bale from the straw core with the cooperation of the conical disc 7 and the steel roller 2, which improves the bundling effect and avoids the phenomenon of blockage at the feeding inlet 3 caused by the straw not rotating with the steel roller 2 in the early stage of feeding. The conical disc can also make the straw be thrown up and wrapped when the straw feeding amount is relatively small.

Claims

1. A straw baling chamber, comprising a body, wherein steel rollers are arranged circumferentially along the inner wall of the body and rotate; the length direction of the steel rollers is the same as the length direction of the body; characterized in that: A conical disc is provided at the first end of the inner wall of the machine body, and the conical disc is perpendicular to the length direction of the machine body; a winding cavity is reserved between the conical disc and the second end of the inner wall of the machine body; the conical disc includes a first-order conical disc, a second-order conical disc and a third-order conical disc, the first-order conical disc is rotatably connected to the machine body, and the first-order conical disc is telescopically disposed in the second-order conical disc; the second-order conical disc is telescopically disposed in the third-order conical disc, and the third-order conical disc is fixedly connected to the first end of the inner wall of the machine body.

2. A straw bale chamber according to claim 1, characterised in that: The outer side of the machine body is equipped with a base plate, and a drive motor is installed on the base plate. The drive motor drives the first-order conical disk to rotate.

3. A straw bale chamber according to claim 2, characterised in that: The first-stage conical disk has a transmission hole, and a main shaft is installed in the transmission hole. The length direction of the main shaft is the same as the length direction of the machine body. The drive motor drives the first-stage conical disk to rotate through the main shaft. The second-stage conical disk has a first set of holes, and the first-stage conical disk can be telescopically installed in the first set of holes. The third-stage conical disk has a second set of holes, and the second-stage conical disk can be telescopically installed in the second set of holes.

4. A straw bale chamber according to claim 3, characterised in that: The outer wall of the first-order conical disk is provided with a first spiral protrusion, and the inner wall of the first hole of the second-order conical disk is provided with a first spiral guide rail in accordance with the first spiral protrusion; the outer wall of the second-order conical disk is provided with a second spiral protrusion, and the inner wall of the second hole of the third-order conical disk is provided with a second spiral guide rail in accordance with the second spiral protrusion.

5. A straw bale chamber according to claim 4, characterised in that: The first-order, second-order, and third-order conical disks are respectively provided with blades spirally arranged along the disk surface of the first-order, second-order, and third-order conical disks.

6. A straw bale chamber according to claim 5, characterised in that: A drive motor is connected to a transmission gear and a sleeve that cooperate with each other. The outer wall of the sleeve is provided with transmission teeth that mesh with the transmission gear; the inner wall of the sleeve is connected to the main shaft for transmission.

7. A straw bale chamber according to claim 6, characterised in that: The inner wall of the sleeve is provided with a helical thread, and the spindle is provided with a helical gear that matches the helical thread.

8. A straw bale chamber according to any one of claims 3 to 7, characterised in that: The base plate is provided with a first fixed seat and a second fixed seat. Both the first fixed seat and the second fixed seat are provided with guide sleeves. The main shaft passes through the guide sleeves and is mounted on the first fixed seat and the second fixed seat.

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