Self-adaptive stepless speed change feeding and clutch type pre-baling device and working method

Abstract

The invention relates to the technical field of agricultural mechanical equipment, in particular to a self-adaptive stepless speed change feeding and clutch type pre-baling device and a working method. The device comprises a shell, a power input shaft, a picking cutter shaft, a spiral conveying shaft and a transmission shaft are arranged on the shell, a driving gear and a jacking structure are arranged on the power input shaft, the power input shaft is in transmission connection with the transmission shaft, a driven gear is arranged on the picking cutter shaft, and the driving gear is in meshed connection with the driven gear; the first fixed disc, the first movable disc and the first shaft sleeve are arranged on the transmission shaft in a spaced mode, a first telescopic rod is arranged on the first shaft sleeve, and the first telescopic rod abuts against the first movable disc; the second fixed disc and the second movable disc are arranged on the spiral conveying shaft in a spaced mode, a second telescopic rod is arranged on the side wall of the shell, and the second telescopic rod abuts against the second movable disc. When the straw covering amount is large, the picking cutter shaft is accelerated, the transmission ratio is changed, the speed of the feeding shaft is higher, and therefore blockage is prevented; when the coverage amount is small, speed is reduced to save energy.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery and equipment technology, specifically to an adaptive continuously variable speed feeding and clutch-type pre-compression baling device and its working method. Background Technology

[0002] Straw balers are agricultural machinery used to process crop straw. They are mainly used for picking up, compressing and baling straws such as rice straw, wheat straw, corn stalks, and rapeseed stalks, as well as forage grass. They are also compatible with pre-processing steps such as cutting and crushing.

[0003] Currently, conventional straw balers generally face technical bottlenecks in the picking, conveying, and pre-baling processes: their transmission systems mostly use fixed transmission ratios, making it difficult to adapt to uneven straw coverage in the field. This leads to problems such as feed inlet blockage and machine jamming when there is thick straw, and idle running and energy waste when there is sparse straw. At the same time, the pre-baling device is usually driven by a timer mechanism, with a fixed operation cycle that is out of sync with the actual amount of straw. This can easily cause the straw in the pre-baling chamber to be pushed out too early and become loose, or to accumulate excessively and become blocked, affecting the quality of the bale and continuous operation. In addition, there is a lack of coordinated feedback based on the amount of straw between the picking, conveying, and pre-baling processes, making it impossible to form a closed-loop system that adjusts according to the amount of feed. The overall coordination is insufficient, which limits the further improvement of productivity and baling effect. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the lack of coordinated feedback based on the amount of straw between the processes of picking, conveying and pre-baling in the existing straw baler, which makes it impossible to form a closed-loop system that adjusts with the amount of feed, resulting in insufficient overall coordination and limiting the further improvement of productivity and baling effect. Thus, the present invention provides an adaptive continuously variable speed feeding and clutch-type pre-baling device and its working method.

[0005] To address the aforementioned technical problems, this invention provides an adaptive continuously variable speed feeding and clutch-type pre-compression bundling device, comprising: a housing, on which a power input shaft, a pickup cutter shaft, a screw conveyor shaft, and a transmission shaft are mounted; the power input shaft is provided with a drive gear and a lifting structure; the power input shaft is drively connected to the transmission shaft; the pickup cutter shaft is provided with a driven gear; and the drive gear and the driven gear are meshed together; a first fixed disk, a first movable disk, and a first bushing are spaced apart on the transmission shaft; the first bushing is provided with a first telescopic rod, which abuts against the first movable disk; and a second fixed disk and a second movable disk are spaced apart on the screw conveyor shaft. The housing has a second telescopic rod on its side wall, which abuts against the second movable disc. The first fixed disc, the first movable disc, the second fixed disc, and the second movable disc each have a conical surface, which are arranged opposite to each other. A conveyor belt is fitted onto the drive shaft and the screw conveyor shaft, and is located between the first fixed disc and the first movable disc, the second fixed disc, and the second movable disc. An adjustment structure is located on the side wall of the housing, with one end abutting against the lifting structure and the other end abutting against the first movable disc. A clutch trigger mechanism is located at the other end of the housing, used to push the pre-compressed straw into the subsequent baling mechanism.

[0006] Furthermore, the lifting structure includes a base and a pressure plate. Multiple elongated grooves are provided along the circumference of the base, and ball bearings are provided in the elongated grooves. The base and the pressure plate are connected by springs.

[0007] Furthermore, the adjustment structure includes a limiting rod and a curved lever. The limiting rod is disposed on the housing, and the curved lever is sleeved on the limiting rod. The lifting structure lifts one end of the curved lever, causing the curved lever to rotate, and a gap is generated between the other end of the curved lever and the first movable disk.

[0008] Furthermore, the clutch triggering mechanism includes a baffle, a material stacking plate, a pusher plate, and a clutch structure. The baffle is located in the middle of the housing, and the pickup blade shaft and the spiral conveyor shaft are located on the baffle. The material stacking plate is connected to the baffle, and the clutch structure is located on the housing and connected to the pusher plate.

[0009] Furthermore, the clutch structure includes a transmission gear, an active friction disc, a sliding groove, and a driven friction disc. The transmission gear is mounted on the transmission shaft, the active friction disc is connected to the transmission gear, the baffle plate and the suspension plate are connected to the housing through the sliding groove, the driven friction disc is mounted on the suspension plate, and the pusher plate is connected to the driven friction disc.

[0010] Furthermore, the housing is provided with a limiting spring, which is connected to the suspension plate.

[0011] Furthermore, it also includes a connecting rod, which is disposed between the baffle plate and the suspension plate.

[0012] Furthermore, it also includes pulleys and belts, with pulleys provided on the power input shaft and the transmission shaft, and the belt being sleeved on the pulleys.

[0013] Furthermore, it also includes a soil removal cover, which is disposed between the housing and the baffle, and has multiple through holes.

[0014] The present invention also provides a working method for the aforementioned adaptive continuously variable speed feeding and clutch-type pre-compression bundling device, comprising: Power is transmitted from the input shaft to the output shaft, and then from the drive gear to the driven gear and the picking-up blade shaft. The picking-up blade shaft rotates and picks up the straw, throwing it into the screw conveyor shaft. As the forward speed increases, the power output increases, and the lifting structure lifts one end of the adjusting structure. The adjusting structure rotates, creating a gap between the other end of the lifting structure and the first movable disc. The first movable disc moves toward the first fixed disc, and the edge of the conveyor belt moves outward along the conical surfaces of the first movable disc and the first fixed disc. Since the length of the conveyor belt is fixed, the conveyor belt pushes the second movable disc toward the second telescopic rod, and the edge of the conveyor belt moves inward along the conical surfaces of the second movable disc and the second fixed disc. This changes the transmission ratio, making the speed of the second movable disc and the second fixed disc greater, thus increasing the transmission speed of the screw conveyor shaft. The pre-compressed straw is then pushed out into the subsequent baling mechanism using a clutch trigger mechanism.

[0015] The technical solution of this invention has the following advantages: The adaptive continuously variable speed feeding and clutch-type pre-compression bundling device provided by the present invention includes: a housing, on which a power input shaft, a pickup cutter shaft, a screw conveyor shaft, and a transmission shaft are provided; the power input shaft is provided with a drive gear and a lifting structure; the power input shaft is drively connected to the transmission shaft; the pickup cutter shaft is provided with a driven gear; the drive gear and the driven gear are meshed together; a first fixed disk, a first movable disk, and a first bushing are spaced apart on the transmission shaft; the first bushing is provided with a first telescopic rod, which abuts against the first movable disk; a second fixed disk and a second movable disk are spaced apart on the screw conveyor shaft; the housing... A second telescopic rod is provided on the side wall of the housing, which abuts against the second movable disc. The first fixed disc, the first movable disc, the second fixed disc, and the second movable disc are all provided with conical surfaces, and the conical surfaces are arranged opposite to each other. The conveyor belt is sleeved on the drive shaft and the screw conveyor shaft, and is located between the first fixed disc and the first movable disc, the second fixed disc, and the second movable disc. An adjustment structure is provided on the side wall of the housing, one end of which abuts against the lifting structure, and the other end of which abuts against the first movable disc. A clutch triggering mechanism is provided at the other end of the housing, and the clutch triggering mechanism is used to push the pre-compressed straw into the subsequent baling mechanism.

[0016] By setting a power input shaft, a picking cutter shaft, a screw conveyor shaft, and a drive shaft on the housing, installation positions are provided for the power input shaft, the picking cutter shaft, the screw conveyor shaft, and the drive shaft. The power input shaft can be connected to an engine, so that power can be transmitted to the power input shaft. One end of the power input shaft extends out of the housing, and the drive gear and the lifting structure are installed on the power input shaft. The drive gear meshes with the driven gear set on the outer wall of the housing. Since the driven gear is set on the picking cutter shaft, the picking cutter shaft can be driven to rotate through the power input shaft, thereby picking up straw. The first telescopic rod pushes against the first movable disc. When the forward speed increases, the power output increases, and the lifting structure lifts one end of the adjusting structure. The adjusting structure rotates, and a gap is created between the other end of the lifting structure and the first movable disc. At this time, the first telescopic rod pops out and continues to push against the first movable disc, causing the first movable disc to move towards the first fixed disc. That is, the edge of the conveyor belt moves outward along the conical surface of the first movable disc and the first fixed disc. Since the length of the conveyor belt is fixed, the conveyor belt pushes the second movable disc towards the second telescopic rod. The second telescopic rod contracts after being squeezed by the second movable disc and moves towards the shell. The edge of the conveyor belt moves inward along the conical surface of the second movable disc and the second fixed disc. The transmission ratio changes, making the speed of the second movable disc and the second fixed disc greater, which increases the transmission speed of the screw conveyor shaft. Then, the clutch trigger mechanism pushes the pre-compressed straw into the subsequent baling mechanism.

[0017] This adaptive continuously variable speed feeding and clutch-type pre-baling device accelerates the picking cutter shaft and changes the transmission ratio when the straw coverage is heavy, resulting in a faster feeding shaft and preventing blockages. When the coverage is light, the speed is reduced to save energy. Simultaneously, a mechanical clutch trigger mechanism inside the pre-baling chamber ensures that pre-baling is only initiated when the straw density reaches the ideal level, resulting in neat, dense, and uniform bale shapes. This achieves efficient straw picking, feeding, and pre-baling, ensuring overall synergy and guaranteeing productivity and baling effectiveness.

[0018] The summary section is provided to present the chosen concepts in a simplified form, which will be further described in the detailed description below. The summary section is not intended to identify essential or necessary features of this disclosure, nor is it intended to limit the scope of this disclosure. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a front view of the adaptive continuously variable speed feeding and clutch-type pre-compression bundling device provided by the present invention; Figure 2 A perspective view of the adaptive continuously variable speed feeding and clutch pre-compression bundling device provided by the present invention, with the top of the housing cut off; Figure 3 A perspective view of the adaptive continuously variable speed feeding and clutch-type pre-compression bundling device provided by the present invention; Figure 4 A schematic diagram of the lifting structure of the adaptive continuously variable speed feeding and clutch-type pre-compression bundling device provided by the present invention; Figure 5 A schematic diagram of the clutch-type pre-compression bundling device for the adaptive continuously variable speed feeding and clutch-type pre-compression bundling device provided by the present invention; Figure 6 This is a schematic diagram of the transmission unit of the adaptive continuously variable speed feeding and clutch-type pre-compression bundling device provided by the present invention.

[0021] Explanation of reference numerals in the attached figures: 1. Housing; 2. First fixed plate; 3. First movable plate; 4. First telescopic rod; 5. First bushing; 6. Curved lever; 7. Limiting rod; 8. Transmission steel belt; 9. Second bushing; 10. Second fixed plate; 11. Steel plate; 12. Pressure plate; 13. Second movable plate; 14. Driven gear; 15. Ball bearing; 16. Base; 17. Drive gear; 18. Power input shaft; 19. Belt; 20. Pickup tool shaft; 2 1. Screw conveyor shaft; 22. Soil removal cover; 23. Baffle; 24. Material accumulation plate; 25. Pusher plate; 26. Hinge bushing; 27. Rocker arm; 28. Fixed bushing; 29. ​​Connecting rod; 30. Suspension plate; 31. Driven friction disc; 32. Driven friction disc; 33. Limiting spring; 34. Transmission gear; 35. Baffle plate; 36. Slide groove; 37. Transmission shaft; 38. Second telescopic rod; 39. Long groove. Detailed Implementation

[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this disclosure. Therefore, the drawings and description are to be considered exemplary in nature and not restrictive.

[0023] The preferred embodiments of this disclosure are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0024] Please see Figures 1 to 6As shown, the present invention provides an adaptive continuously variable speed feeding and clutch-type pre-compression bundling device, comprising: a housing 1, wherein the housing 1 is provided with a power input shaft 18, a pickup blade shaft 20, a screw conveyor shaft 21, and a transmission shaft 37; the power input shaft 18 is provided with a drive gear 17 and a lifting structure; the power input shaft 18 is drively connected to the transmission shaft 37; the pickup blade shaft 20 is provided with a driven gear 14; the drive gear 17 and the driven gear 14 are meshed together; a first fixed disk 2, a first movable disk 3, and a first bushing 5 are spaced apart on the transmission shaft 37; the first bushing 5 is provided with a first telescopic rod 4, which abuts against the first movable disk 3; a second fixed disk 10 and a second movable disk 13 are spaced apart on the screw conveyor shaft 37. On shaft 21, a second telescopic rod 38 is provided on the side wall of housing 1. The second telescopic rod 38 abuts against the second movable disk 13. The first fixed disk 2, the first movable disk 3, the second fixed disk 10, and the second movable disk 13 are all provided with conical surfaces, and the conical surfaces are arranged opposite each other. The conveyor belt is sleeved on the drive shaft 37 and the screw conveyor shaft 21, and is located between the first fixed disk 2 and the first movable disk 3, the second fixed disk 10, and the second movable disk 13. An adjustment structure is provided on the side wall of housing 1. One end of the adjustment structure abuts against the lifting structure, and the other end abuts against the first movable disk 3. A clutch triggering mechanism is provided at the other end of housing 1. The clutch triggering mechanism is used to push the pre-compressed straw into the subsequent baling mechanism.

[0025] By setting a power input shaft 18, a picking blade shaft 20, a screw conveyor shaft 21, and a transmission shaft 37 on the housing 1, installation positions are provided for the power input shaft 18, the picking blade shaft 20, the screw conveyor shaft 21, and the transmission shaft 37. The power input shaft 18 can be connected to an engine, so that power can be transmitted to the power input shaft 18. One end of the power input shaft 18 extends out of the housing 1, and the drive gear 17 and the lifting structure are installed on the power input shaft 18. The drive gear 17 meshes with the driven gear 14 set on the outer wall of the housing 1. Since the driven gear 14 is set on the picking blade shaft 20, the picking blade shaft 20 can be rotated by the power input shaft 18, thereby picking up straw. The first telescopic rod 4 pushes against the first movable disc 3. When the forward speed increases, the power output increases, and the lifting structure lifts one end of the adjusting structure. The adjusting structure rotates, and a gap is created between the other end of the lifting structure and the first movable disc 3. At this time, the first telescopic rod 4 pops out and continues to push against the first movable disc 3, causing the first movable disc 3 to move towards the first fixed disc 2. That is, the edge of the conveyor belt moves outward along the conical surface of the first movable disc 3 and the first fixed disc 2. Since the length of the conveyor belt is fixed, the conveyor belt pushes the second movable disc 13 to move towards the second telescopic rod 38. The second telescopic rod 38 contracts after being squeezed by the second movable disc 13 and moves towards the housing 1. The edge of the conveyor belt moves inward along the conical surface of the second movable disc 13 and the second fixed disc 10. The transmission ratio changes, making the speed of the second movable disc 13 and the second fixed disc 10 greater, which increases the transmission speed of the screw conveyor shaft 21. Then, the clutch trigger mechanism pushes out the pre-compressed straw into the subsequent baling mechanism.

[0026] This adaptive continuously variable speed feeding and clutch-type pre-compression baler accelerates the picking cutter shaft 20 when the straw coverage is heavy, changing the transmission ratio and increasing the feeding shaft speed to prevent clogging; when the coverage is light, it slows down to save energy. Simultaneously, a mechanical clutch trigger mechanism inside the pre-compression baler ensures that pre-compression is only initiated when the straw density reaches the ideal level, resulting in a well-formed, dense, and uniform bale shape, achieving efficient straw picking, feeding, and pre-compression.

[0027] The screw conveyor shaft 21 is also provided with a second bushing 9, which is located on the side close to the second fixed disk 10 and serves to protect the second fixed disk 10.

[0028] The conveyor belt includes multiple interconnected transmission units. Each transmission unit includes two transmission steel belts 8 and multiple steel plates 11, that is, multiple steel plates 11 are fitted between the two transmission steel belts 8, and the two transmission steel belts 8 are symmetrically arranged on both sides of the steel plates 11.

[0029] In this embodiment, the lifting structure includes a base 16 and a pressure plate 12. A plurality of elongated grooves 39 are provided along the circumference of the base 16. Ball bearings 15 are provided in the elongated grooves 39, and the base 16 and the pressure plate 12 are connected by springs.

[0030] By setting ball bearings 15 in multiple elongated grooves 39, the power output increases as the forward speed increases, and the rotation speed of the base 16 increases. Since the pressure plate 12 has a disc-shaped structure and the pressure plate 12 and the base 16 are softly connected by springs, when the ball bearings 15 move centrifugally along the elongated grooves 39, they lift the pressure plate 12.

[0031] Specifically, the adjustment structure includes a limiting rod 7 and a curved lever 6. The limiting rod 7 is disposed on the housing 1, and the curved lever 6 is sleeved on the limiting rod 7. The lifting structure lifts one end of the curved lever 6, causing the curved lever 6 to rotate, and a gap is generated between the other end of the curved lever 6 and the first movable disk 3.

[0032] The limiting rod 7 is set in the gap between the base 16 and the first movable plate 3, and the limiting rod 7 is fixedly connected to the housing 1. The curved lever 6 is sleeved on the limiting rod 7. When the pressure plate 12 is lifted, that is, the end of the curved lever 6 near the pressure plate 12 is lifted, the end of the curved lever 6 near the first movable plate 3 falls down, so that a gap is created between the curved lever 6 and the first movable plate 3. At this time, the first telescopic rod 4 pops out and continues to push against the first movable plate 3, so that the first movable plate 3 moves toward the first fixed plate 2.

[0033] When the forward speed is constant, the first telescopic rod 4 pushes against the first movable disk 3; when the forward speed increases, the first telescopic rod 4 pops out and continues to push against the first movable disk 3, causing the first movable disk 3 to move toward the first fixed disk 2.

[0034] In some optional embodiments, the clutch triggering mechanism includes a baffle 23, a material accumulation plate 24, a pusher plate 25, and a clutch structure. The baffle 23 is located in the middle of the housing 1, and the pickup blade shaft 20 and the screw conveyor shaft 21 are located on the baffle 23. The material accumulation plate 24 is connected to the baffle 23, and the clutch structure is located on the housing 1 and connected to the pusher plate 25.

[0035] The baffle 23 is located in the middle of the housing 1, which provides an installation position for the pickup blade shaft 20, the screw conveyor shaft 21, and the drive shaft 37, ensuring the installation stability of the pickup blade shaft 20 and the screw conveyor shaft 21, and also providing support for the drive shaft 37.

[0036] Meanwhile, the material stacking plate 24 is connected to the baffle 23, which can stack and support the straw conveyed by the screw conveyor shaft 21. Then, the clutch structure drives the pusher plate 25 to push the pre-compressed straw into the baling and forming device of the straw baler. At this time, the pusher plate 25 moves parallel to the material stacking plate 24 and pushes it back to the starting position, avoiding the obstruction of straw during the return process.

[0037] The pusher plate 25 is equipped with a rocker arm 27, which is connected to a fixed bushing 28. The fixed bushing 28 is connected to a hinged bushing 26, which is mounted on the driven friction disc 31, thereby enabling the driven friction disc 31 to drive the pusher plate 25 to rotate.

[0038] In some optional embodiments, the clutch structure includes a transmission gear 34, an active friction disc 32, a slide groove 36, and a driven friction disc 31. The transmission gear 34 is mounted on the transmission shaft 37. The active friction disc 32 is connected to the transmission gear 34. The baffle plate 35 and the suspension plate 30 are connected to the housing 1 through the slide groove 36. The driven friction disc 31 is mounted on the suspension plate 30. The pusher plate 25 is connected to the driven friction disc 31.

[0039] The transmission shaft 37 drives the transmission gear 34 to move. The transmission gear 34 is connected to the active friction disc 32 set inside the housing 1. That is, the transmission gear 34 drives the active friction disc 32 to rotate. When the straw is piled up to a certain extent, it will push the baffle plate 35 and the suspension plate 30 to move laterally along the slide 36. When the active friction disc 32 contacts the driven friction disc 31, it rotates under the action of friction. The pusher plate 25 makes periodic movements to push the pre-compressed straw into the baling and forming device of the straw baler.

[0040] Meanwhile, a limiting spring 33 is provided on the housing 1, and the limiting spring 33 is connected to the suspension plate 30. The setting of the limiting spring 33 ensures that when the straw pushes the baffle plate 35 and the suspension plate 30 and they are squeezed, when the straw is pushed out of the housing 1, the baffle plate 35 and the suspension plate 30 return to their initial positions under the action of the limiting spring 33, thus playing a role in automatic return.

[0041] The adaptive continuously variable speed feeding and clutch-type pre-compression bundling device also includes a connecting rod 29, which is located between the baffle plate 35 and the suspension plate 30, thereby realizing the connection between the baffle plate 35 and the suspension plate 30. The function of the baffle plate 35 is to effectively protect the suspension plate 30, that is, the driven friction disc 31 is installed on the suspension plate 30, and also to ensure that the pusher plate 25 can make periodic movements with the driven friction disc 31.

[0042] The adaptive continuously variable feed and clutch pre-compression bundling device also includes pulleys and belts 19. The power input shaft 18 and the transmission shaft 37 are equipped with pulleys, and the belt 19 is sleeved on the pulleys. That is, the synchronous rotation of the power input shaft 18 and the transmission shaft 37 is realized by using two pulleys and belts 19.

[0043] The adaptive continuously variable transmission feeding and clutch-type pre-compression baling device also includes a soil removal cover 22, which is located between the housing 1 and the baffle 23, and has multiple through holes. The through holes can effectively remove dust from the straw and reduce the overall weight of the straw.

[0044] The present invention also provides a working method for the aforementioned adaptive continuously variable speed feeding and clutch-type pre-compression bundling device, comprising: Power is transmitted to the output shaft via the power input shaft 18, and then to the driven gear 14 and the pickup blade shaft 20 via the drive gear 17. The pickup blade shaft 20 rotates and throws the straw into the screw conveyor shaft 21. When the forward speed increases, the power output increases, the lifting structure lifts one end of the adjusting structure, the adjusting structure rotates, and a gap is created between the other end of the lifting structure and the first movable disk 3. The first movable disk 3 moves toward the first fixed disk 2, and the edge of the conveyor belt moves outward along the conical surface of the first movable disk 3 and the first fixed disk 2. Since the length of the conveyor belt is fixed, the conveyor belt pushes the second movable disk 13 toward the second telescopic rod 38. The edge of the conveyor belt moves inward along the conical surface of the second movable disk 13 and the second fixed disk 10, which changes the transmission ratio and makes the speed of the second movable disk 13 and the second fixed disk 10 greater, thus increasing the transmission speed of the screw conveyor shaft 21. The pre-compressed straw is then pushed out into the subsequent baling mechanism using the clutch trigger mechanism.

[0045] The specific working method of the adaptive continuously variable speed feeding and clutch pre-compression baling device is as follows: power is transmitted to the output shaft through the power input shaft 18, and then to the driven gear 14 and the picking cutter shaft 20 through the driving gear 17. The picking cutter shaft 20 rotates and throws the straw into the soil removal cover 22, and then it is transported by the screw conveyor shaft 21. When the forward speed increases, the power output increases, the rotation speed of the base 16 increases, the centrifugal motion of the ball bearings 15 inside the base 16 lifts the pressure plate 12, lifts one end of the curved lever 6, and the curved lever 6 rotates along the limiting rod 7. A gap is generated between the other end of the curved lever 6 and the first movable plate 3, and the first movable plate 3 moves toward the first fixed plate 2. The edge of the conveyor belt moves outward along the conical surface of the first movable plate 3 and the first fixed plate 2. Since the length of the conveyor belt is fixed, the conveyor belt pushes the second movable plate 13 toward the second telescopic rod 38. The edge of the conveyor belt moves inward along the conical surface of the second movable plate 13 and the second fixed plate 10, which changes the transmission ratio and makes the speed of the second movable plate 13 and the second fixed plate 10 greater, thus increasing the transmission speed of the screw conveyor shaft 21. The collected straw is transferred to the material stacking plate 24 via the baffle 23. When the straw accumulates to a certain extent, it pushes the baffle plate 35, connecting rod 29, and suspension plate 30 along the slide groove 36 to compress the limiting spring 33. The fixed bushing 28 remains in its original position. The active friction disc 32 contacts the driven friction disc 31 and rotates under the action of friction. The rocker arm 27, under the action of the hinged bushing 26, makes a periodic movement, driving the pusher plate 25 to push the pre-compressed straw into the baling and forming device of the baler. At this time, the movement trajectory of the pusher plate 25 is parallel to the direction of the material stacking plate 24. When returning, it is lifted up and returned to the starting position, avoiding the obstruction of straw during the return process.

[0046] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A self-adapting stepless variable speed feeding and clutching pre-compression baling apparatus, characterized in that, The utility model relates to a straw bale machine, including: The housing (1) is equipped with power input shaft (18), pick up sword shaft (20), screw conveyor shaft (21), transmission shaft (37), and is equipped with driving gear (17) and jacking structure on power input shaft (18), power input shaft (18) is transmission connection with transmission shaft (37), and is equipped with driven gear (14) on pick up sword shaft (20), and driving gear (17) is engagedly connected with driven gear (14); First fixed disc (2) and first movable disc (3), first shaft sleeve (5) are spaced apart and arranged on transmission shaft (37), and first shaft sleeve (5) is equipped with first telescopic rod (4), and first telescopic rod (4) is in abutment with first movable disc (3); Second fixed disc (10) and second movable disc (13) are spaced apart and arranged on screw conveyor shaft (21), and the side wall of housing (1) is equipped with second telescopic rod (38), and second telescopic rod (38) is in abutment with second movable disc (13), and first fixed disc (2) and first movable disc (3), second fixed disc (10), second movable disc (13) are all equipped with taper face, and the taper face is oppositely arranged, and the transmission belt is sleeved on transmission shaft (37) and screw conveyor shaft (21), and is located between first fixed disc (2) and first movable disc (3), second fixed disc (10) and second movable disc (13); Adjusting structure is arranged on the side wall of housing (1), one end of adjusting structure is in abutment with jacking structure, and the other end is in abutment with first movable disc (3); Clutch trigger mechanism is arranged on the other end of housing (1), and the clutch trigger mechanism is used to push the straw pre-compressed into the subsequent baling mechanism; The jacking structure includes a base (16) and a pressure plate (12), a plurality of long groove (39) are arranged along the circumference of the base (16), the long groove (39) is provided with a ball (15), and the base (16) and the pressure plate (12) are connected by a spring.

2. A self-adapting stepless speed- varying feed and clutch type pre-compression baling apparatus according to claim 1, characterized in that, The adjusting structure includes a limiting rod (7) and a curved lever (6), the limiting rod (7) is arranged on the housing (1), the curved lever (6) is sleeved on the limiting rod (7), the jacking structure jacks up one end of the curved lever (6), so that the curved lever (6) rotates, and a gap is generated between the other end of the curved lever (6) and the first movable disc (3).

3. A self-adapting stepless variable speed feed and clutching pre-compression baling apparatus according to claim 1 or 2, characterized in that, The clutch trigger mechanism includes a baffle (23), a material accumulation plate (24), a pushing plate (25) and a clutch structure, the baffle (23) is arranged in the middle of the housing (1), and the pick up sword shaft (20) and the screw conveyor shaft (21) are arranged on the baffle (23), the material accumulation plate (24) is connected with the baffle (23), the clutch structure is arranged on the housing (1) and connected with the pushing plate (25).

4. A self-adapting stepless speed- varying feed and clutch type pre-compression baling apparatus according to claim 3, characterized in that, The clutch structure comprises a transmission gear (34) provided on the transmission shaft (37), a driving friction disc (32) connected with the transmission gear (34), a slide groove (36) connecting the material blocking plate (35) and the suspension plate (30) with the shell (1), and a driven friction disc (31) provided on the suspension plate (30), and the material pushing plate (25) is connected with the driven friction disc (31).

5. A self-adapting stepless speed- varying feed and clutch type pre-compression baling apparatus according to claim 4, characterized in that, The shell (1) is provided with a limiting spring (33) connected with the suspension plate (30).

6. A self-adapting stepless speed- varying feed and clutch type pre-compression baling apparatus according to claim 5, characterized in that, The connecting rod (29) is further arranged between the material blocking plate (35) and the suspension plate (30).

7. The self-adapting stepless speed- varying feed and clutch type pre-compression baling apparatus according to claim 1, characterized in that, The power input shaft (18) and the transmission shaft (37) are provided with pulleys, and the belt (19) is sleeved on the pulleys.

8. The self-adapting stepless speed- varying feed and clutch type pre-compression baling apparatus according to claim 1, characterized in that, The soil removal cover (22) is arranged between the shell (1) and the baffle (23), and a plurality of through holes are arranged on the soil removal cover (22).

9. A method of operating a self-adapting stepless variable speed feeding and clutching pre-compression baling apparatus according to any one of claims 1 to 8, characterised in that, The power is transmitted to the output shaft through the power input shaft (18), and is transmitted to the driven gear (14) and the pickup knife shaft (20) through the driving gear (17), the pickup knife shaft (20) rotates and picks up the straw, and throws the straw into the spiral conveying shaft (21); when the forward speed increases, the power output increases, one end of the adjusting structure is lifted by the jacking structure, the adjusting structure rotates, a gap is generated between the other end of the jacking structure and the first movable disc (3), the first movable disc (3) moves towards the first fixed disc (2), the edge of the conveying belt moves outward along the taper surface of the first movable disc (3) and the first fixed disc (2), because the length of the conveying belt is fixed, the conveying belt drives the second movable disc (13) to move towards the second telescopic rod (38), the edge of the conveying belt moves inward along the taper surface of the second movable disc (13) and the second fixed disc (10), so that the transmission ratio changes, the speed of the second movable disc (13) and the second fixed disc (10) becomes larger, the transmission speed of the spiral conveying shaft (21) increases, and the pre-compressed straw is pushed out by the clutch trigger mechanism into the subsequent bundling mechanism. The shell (1) is provided with a limiting spring (33) connected with the suspension plate (30). The connecting rod (29) is further arranged between the material blocking plate (35) and the suspension plate (30). The power input shaft (18) and the transmission shaft (37) are provided with pulleys, and the belt (19) is sleeved on the pulleys. The soil removal cover (22) is arranged between the shell (1) and the baffle (23), and a plurality of through holes are arranged on the soil removal cover (22). The power is transmitted to the output shaft through the power input shaft (18), and is transmitted to the driven gear (14) and the pickup knife shaft (20) through the driving gear (17), the pickup knife shaft (20) rotates and picks up the straw, and throws the straw into the spiral conveying shaft (21); when the forward speed increases, the power output increases, one end of the adjusting structure is lifted by the jacking structure, the adjusting structure rotates, a gap is generated between the other end of the jacking structure and the first movable disc (3), the first movable disc (3) moves towards the first fixed disc (2), the edge of the conveying belt moves outward along the taper surface of the first movable disc (3) and the first fixed disc (2), because the length of the conveying belt is fixed, the conveying belt drives the second movable disc (13) to move towards the second telescopic rod (38), the edge of the conveying belt moves inward along the taper surface of the second movable disc (13) and the second fixed disc (10), so that the transmission ratio changes, the speed of the second movable disc (13) and the second fixed disc (10) becomes larger, the transmission speed of the spiral conveying shaft (21) increases, and the pre-compressed straw is pushed out by the clutch trigger mechanism into the subsequent bundling mechanism.

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