Wetland reed rapid harvesting device for excavator

Abstract

The invention relates to the technical field of agricultural machinery, in particular to a wetland reed rapid harvesting device for an excavator, which comprises a connecting frame arranged at the arm end of the excavator and a harvesting unit vertically and movably arranged on the connecting frame; the reaping unit comprises a plurality of guide frames arranged in the horizontal direction, gaps allowing reeds to slide in are formed between the adjacent guide frames, rotating rods are rotationally arranged on the guide frames, angle sensors used for monitoring the inclination angle of the rotating rods are arranged at the ends of the rotating positions of the rotating rods, and the maximum inclination angle is preset. The rotating rod is in a vertical state when not making contact with the stone, and when the rotating rod makes contact with the stone and rotates to the maximum inclination angle, the harvesting unit ascends. The problem that the height of the reed harvesting position is too high in order to avoid the stone is solved, it is guaranteed that the harvesting unit can automatically avoid the stone during reed harvesting, and the harvesting unit is prevented from colliding with the stone.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a wetland reed quick harvesting device for an excavator. Background Art

[0002] The existing reed harvester cannot adjust the height of the conveying system used to transport the reeds according to the actual height of the reeds. The height of the existing conveying system cannot be changed automatically. It is necessary to manually judge the height of the reeds and adjust the height of the conveying system. This causes some reeds to fail to fall smoothly on the conveying system, and the efficiency of manually adjusting the height of the conveying system is low.

[0003] Chinese patent publication number CN117441484A discloses a vertical clamping longitudinal conveying system for harvesting whole reed stalks, comprising a vertical clamping longitudinal conveying device, a clamping conveying chain height adjustment mechanism and a control unit; the clamping conveying chain height adjustment mechanism comprises a pre-cutting detection unit, a position sensor and a lifting device; the pre-cutting detection unit is used to detect the height information of the reeds in the pre-cutting area and transmit it to the control unit; the position sensor is used to detect the current height of the vertical clamping longitudinal conveying device and transmit it to the control unit; the lifting device is connected to the vertical clamping longitudinal conveying device; the control unit is respectively connected to the pre-cutting detection unit and the lifting device; the control unit calculates the average height of the reeds in the pre-cutting area according to the reed height information in the pre-cutting area detected by the pre-cutting detection unit, calculates the center of gravity height of the reeds, and calculates the height difference between the center of gravity height of the reeds and the current height of the vertical clamping longitudinal conveying device, and controls the lifting device to adjust the position of the vertical clamping longitudinal conveying device to correspond to the center of gravity of the reeds in the pre-cutting area according to the height difference.

[0004] The above scheme achieves the effect of automatically adjusting the height of the conveying system according to the height of the reeds, but the above scheme needs to be based on a complete reed collector to operate normally. The procurement cost is high and it cannot be applied to all areas. In the process of harvesting reeds, there are some large stones in the wetland. The existing harvesting device cannot predict the stones in front when harvesting reeds. In order to avoid the harvesting device from colliding with stones during the harvesting process, it is necessary to increase the height of the harvesting device so that the harvesting device avoids the stones. However, this will cause too much residue in the lower part of the reed. If the reeds are to be harvested as much as possible, the height of the harvesting device must be lowered, which will cause the harvesting device to collide with stones, thereby causing damage to the harvesting device. In addition, the traditional stone removal device cannot be used for reed harvesting. This is because the stone removal device will also cause the reeds to fall over during the stone removal process, thereby causing the harvesting unit to fail to harvest the reeds smoothly. Summary of the invention

[0005] In view of the above problems, a wetland reed rapid harvesting device for an excavator is provided. By setting a rotating rod at the front end of a chain saw harvester, and detecting the inclination angle of the rotating rod through an angle sensor, when the harvesting unit is moving, if there is a stone in front of the harvesting unit, the rotating rod will contact the stone before the chain saw harvester. As the harvesting unit moves, the stone pushes the bottom of the rotating rod, causing the rotating rod to rotate around the rotation point between itself and the guide frame. At this time, the angle sensor set on one side of the rotating rod can monitor the inclination angle of the rotating rod. If the angle of the rotating rod reaches the maximum inclination angle, the harvesting unit rises until the inclination angle of the rotating rod is less than the maximum inclination angle, and then the harvesting unit stops rising, and after maintaining the current height, it descends again to reset to the initial height. In this way, the problem of the reed harvesting position being too high due to avoiding stones is avoided, and the harvesting unit can avoid stones by itself when harvesting reeds, avoiding the collision between the harvesting unit and stones.

[0006] In order to solve the problems of the prior art, the present invention provides a wetland reed rapid harvesting device for an excavator, comprising a connecting frame arranged at the end of the excavator arm and a harvesting unit vertically movably arranged on the connecting frame; the harvesting unit comprises a plurality of guide frames arranged in a horizontal direction, and there are gaps between adjacent guide frames for the reeds to slide into, a rotating rod is rotatably arranged on the guide frame, an angle sensor for monitoring the inclination angle of the rotating rod is arranged at the end of the rotating rod where it rotates, and a maximum inclination angle is preset, the rotating rod is in a vertical state when it is not in contact with a stone, and when the rotating rod rotates to the maximum inclination angle after contacting the stone, the harvesting unit rises.

[0007] Preferably, a first coil spring box is arranged on one side of the rotating rod, the first coil spring box and the angle sensor are arranged on both sides of the rotating rod respectively, and the first coil spring box is connected to the end of the rotating rod at the rotating position.

[0008] Preferably, a trigger sleeve is provided at the end of the guide frame, a trigger rod is slidably provided in the trigger sleeve, one end of the trigger rod extends from the end of the trigger sleeve away from the guide frame, a spring is provided between the bottom of the trigger sleeve and the end of the trigger rod, and a pressure sensor for detecting the spring elastic force is provided at the bottom of the trigger sleeve.

[0009] Preferably, the trigger sleeve is hinged on the guide frame, and the end of the trigger sleeve away from the guide frame is inclined downward.

[0010] Preferably, a second coil spring box is provided at the hinge between the trigger sleeve and the guide frame.

[0011] Preferably, a screw rod is vertically rotatably arranged on the connecting frame, a lifting block is fixedly arranged on the side of the harvesting unit, and the screw rod vertically penetrates the lifting block and cooperates with the lifting block thread.

[0012] Preferably, an inflatable sleeve is provided at the lower part of the lifting block, and an air pump for inflating or deflating the inflatable sleeve is provided on one side of the inflatable sleeve.

[0013] Preferably, the harvesting unit includes a chain saw harvester arranged along the arrangement direction of the guide frame, and a plurality of knocking bars are evenly fixedly arranged on the chain saw of the chain saw harvester.

[0014] Preferably, a collecting unit is provided on one side of the harvesting unit, and the collecting unit includes a collecting frame. A rotating door is rotatably provided on a side of the collecting frame away from the harvesting unit. When the rotating door is rotated and closed, the collecting frame and the rotating door form a collecting chamber for collecting reeds.

[0015] Preferably, an entry slot for reeds to enter is provided on one side of the collecting frame close to the harvesting unit, and a rotating frame is rotatably provided on one side of the entry slot, with the rotating tangent direction of the rotating frame toward the side of the entry slot toward the collecting frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention sets a rotating rod at the front end of the chain saw harvester, and detects the inclination angle of the rotating rod through an angle sensor, so that when the harvesting unit is moving, if there is a stone in front of the harvesting unit, the rotating rod will contact the stone before the chain saw harvester. As the harvesting unit moves, the stone pushes the bottom of the rotating rod, so that the rotating rod rotates around the rotation point between itself and the guide frame. At this time, the angle sensor set on one side of the rotating rod can monitor the inclination angle of the rotating rod. If the angle of the rotating rod reaches the maximum inclination angle, the harvesting unit rises until the inclination angle of the rotating rod is less than the maximum inclination angle, and then the harvesting unit stops rising and falls again to reset to the initial height after maintaining the current height. In this way, the problem of the reed harvesting position being too high due to avoiding stones is avoided, and the harvesting unit can avoid stones by itself when harvesting reeds, avoiding the collision between the harvesting unit and stones.

[0018] 2. By setting a trigger rod, a trigger sleeve and a spring, and setting a pressure sensor in the trigger sleeve, during the process of harvesting reeds, when encountering a stone whose height reaches the same height as the guide frame, the trigger rod first contacts the stone, and then the trigger rod slides into the trigger sleeve and presses the spring. At this time, the pressure sensor detects an increase in pressure value, and presets a rated pressure value for the pressure sensor. When the pressure value monitored by the pressure sensor reaches the actual pressure value, the harvesting unit starts to rise. After the pressure value of the pressure sensor decreases, the harvesting unit continues to rise. The height of the harvesting unit's continuous rise is greater than the height of the chainsaw harvester in the vertical direction, thereby avoiding a collision between the chainsaw harvester and the stone, preventing the guide frame from directly colliding with the stone, and avoiding the stone from rolling over and tipping over after directly colliding with the guide frame, thereby preventing some reeds from being successfully harvested. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional schematic diagram of a wetland reed rapid harvesting device for an excavator according to the present invention. Figure 1 .

[0020] Figure 2 The invention discloses a wetland reed rapid harvesting device for an excavator. Figure 1 A local enlarged schematic diagram of point A in the middle.

[0021] Figure 3 The invention discloses a wetland reed rapid harvesting device for an excavator. Figure 1 A local enlarged schematic diagram of point B in the middle.

[0022] Figure 4 The present invention is a cutaway stereoscopic diagram of a wetland reed rapid harvesting device for an excavator. Figure 1 .

[0023] Figure 5 The invention discloses a wetland reed rapid harvesting device for an excavator. Figure 4 A partial enlarged schematic diagram of point C in the middle.

[0024] Figure 6 The invention discloses a wetland reed rapid harvesting device for an excavator. Figure 4 A local enlarged schematic diagram of point D in the middle.

[0025] Figure 7 The invention discloses a wetland reed rapid harvesting device for an excavator. Figure 4 A partial enlarged schematic diagram of point E in the middle.

[0026] Figure 8 This is a three-dimensional schematic diagram of a wetland reed rapid harvesting device for an excavator according to the present invention. Figure 2 .

[0027] Fig. 9 The invention discloses a wetland reed rapid harvesting device for an excavator. Figure 8 A partial enlarged schematic diagram of point F in the middle.

[0028] Fig.10 The invention discloses a stereoscopic schematic diagram of a wetland reed rapid harvesting device for an excavator after a rotating door is opened.

[0029] Fig.11 The present invention is a cutaway stereoscopic diagram of a wetland reed rapid harvesting device for an excavator. Figure 2 .

[0030] Fig.12 The invention discloses a wetland reed rapid harvesting device for an excavator. Fig.11 A local enlarged schematic diagram of point G in the middle.

[0031] The numbers in the figure are:

[0032] 1. Connecting frame; 11. Screw rod; 12. Lifting block; 13. First rotary drive; 14. Inflatable sleeve; 15. Air pump; 2. Harvesting unit; 21. Rotating rod; 211. First coil spring box; 22. Angle sensor; 23. Guide frame; 231. Trigger rod; 232. Trigger sleeve; 233. Spring; 234. Second coil spring box; 24. Chain saw harvester; 241. Knocking rod; 25. Belt conveyor; 3. Collecting unit; 31. Collecting frame; 32. Rotating door; 33. Second rotary drive; 34. Entry slot; 35. Rotating frame. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] Reference Figure 1 , Fig.11 and Fig.12 A wetland reed rapid harvesting device for an excavator comprises a connecting frame 1 arranged at the end of the excavator arm and a harvesting unit 2 vertically movable on the connecting frame 1; the harvesting unit 2 comprises a plurality of guide frames 23 arranged in a horizontal direction, and there are gaps between adjacent guide frames 23 for the reeds to slide into, a rotating rod 21 is rotatably arranged on the guide frame 23, an angle sensor 22 for monitoring the inclination angle of the rotating rod 21 is arranged at the end of the rotating rod 21 where it rotates, and a maximum inclination angle is preset, the rotating rod 21 is in a vertical state when it is not in contact with a stone, and when the rotating rod 21 rotates to the maximum inclination angle after contacting the stone, the harvesting unit 2 rises.

[0035] Existing reed harvesting devices are mainly divided into single-body type and integrated type. The single-body type refers to the type that can be flexibly applied to different vehicles, has low use cost and high flexibility, but cannot reasonably collect the harvested reeds. The integrated reed harvesting device has a complete set of harvesting, conveying and collecting systems, but has low use flexibility. The purchase cost of the integrated reed harvesting device is high and it cannot be used in all regions. The integrated reed harvesting device can automatically adjust the height of the harvesting unit 2 according to the actual height of the reeds. However, both the integrated and single-body reed harvesting devices ignore the presence of some stones in the wetland, which may cause the harvesting unit 2 to collide with the stones during the harvesting process, which may easily cause the harvesting unit 2 to be damaged by the stones during the harvesting process. The above problem is particularly obvious in the single-body reed harvesting device. When in use, the single-body reed harvesting device is set on the head of the excavator, so that the excavator drives the single-body reed harvesting device to rotate and harvest. During this process, the height of the single-body reed harvesting device will not change. The excavator driver will only realize that he has hit the stone after the single-body reed harvesting device collides with the stone. This is because the reeds before harvesting usually grow in patches and the height of the reeds is relatively high, making it impossible to observe the situation in the lower part of the wetland.

[0036] In order to prevent the reed harvesting device from colliding with stones during the process of harvesting reeds, the structure of the existing single-type reed harvesting device is redesigned so that the reed harvesting device of the present invention can automatically identify the stones in front of the moving path after being installed on the head of the excavator, and automatically avoid them according to the height of the stones. The specific structure and working process of the reed harvesting device are as follows:

[0037] The harvesting unit 2 also includes a chainsaw harvester 24. When in use, the bucket of the excavator is disassembled, and the connecting frame 1 is installed at the end of the excavator's boom. The excavator then drives the installed reed harvesting device to move to the designated harvesting location. When harvesting, the excavator drives the reed harvesting device to rotate around the excavator through the boom. The harvesting area formed by the harvesting unit 2 is a fan-shaped structure. When the harvesting unit 2 is harvesting, the harvesting unit 2 rotates around the excavator driven by the excavator's boom. The reeds slide into the gaps between adjacent guide frames 23 under the guidance of the guide frames 23. The rotating rod 21 and the chainsaw harvester 24 are arranged in sequence from front to back on the guide frames 23 along the direction of the reeds sliding into the gaps. Since the rotating rod 21 is rotatably arranged in the guide frames 23, when the reeds pass through the guide frames 23, the reeds will not drive the rotating rod 21 to rotate. Only in the direction of the harvesting unit 2, there is When the rotating rod 21 is pushed by the stone and the height of the stone is high, the rotating rod 21 will be pushed to rotate by the stone when passing through the stone. Since the rotating rod 21 is arranged at the front end of the chain saw harvester 24, when the harvesting unit 2 moves, when there is a stone in front of the harvesting unit 2, the rotating rod 21 will contact the stone before the chain saw harvester 24. When the stone pushes the rotating rod 21 to rotate to the maximum inclination angle, the lower end of the rotating rod 21 contacts the stone, and the height of the lower end of the rotating rod 21 is the same as the height of the lower end surface of the chain saw harvester 24. The same, then at this time, the harvesting unit 2 moved along the vertical direction and arranged on the connecting frame 1 begins to rise. If at this time the lower end of the rotating rod 21 has reached the highest position of the stone, then during the rising process of the harvesting unit 2, the rotating rod 21 gradually rotates to the vertical state. At this time, the angle of the rotating rod 21 gradually becomes smaller, and the harvesting unit 2 stops rising after rising the rated distance. The rated rising distance of the harvesting unit 2 needs to be set by the user according to actual conditions; on the contrary, if the rotating rod 21 is rotated to the maximum inclination angle, and at this time the lower end of the rotating rod 21 has not moved to the highest position of the stone, during the rising process of the harvesting unit 2, the inclination angle of the rotating rod 21 will always float near the maximum inclination angle. At this time, the harvesting unit 2 continues to rise until the inclination angle of the rotating rod 21 can be stably located below the maximum inclination angle before stopping to rise. At this time, the harvesting unit 2 drops again after maintaining the current height for a period of time. The length of time the harvesting unit 2 maintains the height can be set according to actual conditions.

[0038] By setting a rotating rod 21 at the front end of the chain saw harvester 24 and detecting the inclination angle of the rotating rod 21 through the angle sensor 22, when the harvesting unit 2 moves, if there is a stone in front of the harvesting unit 2, the rotating rod 21 will contact the stone before the chain saw harvester 24, and as the harvesting unit 2 moves, the stone pushes the bottom of the rotating rod 21, so that the rotating rod 21 rotates around the rotation point between itself and the guide frame 23, and the angle sensor 22 set on one side of the rotating rod 21 can monitor the inclination angle of the rotating rod 21. If the angle of the rotating rod 21 reaches the maximum inclination angle, the harvesting unit 2 rises until the inclination angle of the rotating rod 21 is less than the maximum inclination angle, and then the harvesting unit 2 stops rising, and after maintaining the current height, it descends again and resets to the initial height. In this way, the problem of the reed harvesting position being too high due to avoiding stones is avoided, and it is ensured that the harvesting unit 2 can avoid stones by itself when harvesting reeds, and the collision between the harvesting unit 2 and stones is avoided.

[0039] Reference Fig.12 A first coil spring box 211 is disposed on one side of the rotating rod 21 . The first coil spring box 211 and the angle sensor 22 are disposed on both sides of the rotating rod 21 , respectively. The first coil spring box 211 is connected to the end of the rotating rod 21 where it rotates.

[0040] Since there are branches at the rhizomes of some reeds and the reeds at the rhizomes have a certain toughness, when the harvesting unit 2 rotates with the excavator arm, the forked branches will also push the lower part of the rotating rod 21, causing the rotating rod 21 to rotate unexpectedly, and then causing the harvesting unit 2 to rise unexpectedly. In order to avoid the above situation and ensure that the harvesting unit 2 can cut the reeds at a lower height in the absence of stones, a first coil spring box 211 is provided on one side of the rotating rod 21. The rotation of the rotating rod 21 is limited by the torsion of the coil spring in the first coil spring box 211. In this way, if the rotating rod 21 is to be rotated, sufficient thrust needs to be provided, otherwise the rotating rod 21 will not rotate, thereby preventing the rotating rod 21 from being accidentally pushed by the forked branches at the root of the reed.

[0041] Reference Figure 5 A trigger sleeve 232 is provided at the end of the guide frame 23, a trigger rod 231 is slidably provided in the trigger sleeve 232, one end of the trigger rod 231 extends from the end of the trigger sleeve 232 away from the guide frame 23, a spring 233 is provided between the bottom of the trigger sleeve 232 and the end of the trigger rod 231, and a pressure sensor for detecting the elastic force of the spring 233 is provided at the bottom of the trigger sleeve 232.

[0042] Since the stones in the wetland cannot be visually observed, the specific height of the stones in the wetland cannot be determined. In order to ensure the cutting effect of the reeds, when using the harvesting unit 2 to cut the reeds, the closer the harvesting unit 2 is to the wetland ground, the better. However, this can easily increase the probability of the harvesting unit 2 contacting the stones. At the same time, due to the excessive height of some stones, during the movement of the harvesting unit 2, the stones will directly contact the front end of the guide frame 23, causing the guide frame 23 to directly collide with the stones. After the collision, the stones will be turned over. If the stones are large, they will not only damage the guide frame 23, but also crush the surrounding reeds, resulting in some reeds being unable to be harvested normally. In order to avoid the above situation, a trigger sleeve 232, a trigger rod 231 and a spring 233 are arranged at the front end of the guide frame 23, and a pressure sensor is arranged at the bottom of the trigger sleeve 232. In this way, when the harvesting unit 2 encounters a stone whose height reaches the same height as the guide frame 23 during the process of harvesting reeds, the trigger rod 231 first contacts the stone, and then the trigger rod 231 slides into the trigger sleeve 232 and presses the spring 233. At this time, the pressure sensor detects that the pressure value rises, and the preset rated value of the pressure sensor is set. The harvesting unit 2 starts to rise only when the pressure value monitored by the pressure sensor reaches the actual pressure value. After the pressure value of the pressure sensor decreases, the harvesting unit 2 continues to rise. The height of the harvesting unit 2 that continues to rise is greater than the height of the chainsaw harvester 24 in the vertical direction. This can prevent the chainsaw harvester 24 from colliding with stones, so that the guide frame 23 will not collide directly with the stones, and also prevent the stones from rolling over after directly colliding with the guide frame 23, thereby causing some reeds to fail to be harvested smoothly.

[0043] Reference Figure 1-Figure 12 : The trigger sleeve 232 is hinged on the guide frame 23, and the end of the trigger sleeve 232 away from the guide frame 23 is tilted downward.

[0044] When the excavator drives the harvesting unit 2 to rotate, if the harvesting unit 2 moves too fast, the trigger rod 231 will be quickly pressed into the trigger sleeve 232 when it comes into contact with a stone, causing the spring 233 to be quickly compressed, which can easily cause damage to the spring 233. In this way, the trigger sleeve 232 is tilted and the trigger sleeve 232 is hinged to the guide frame 23. When the trigger rod 231 comes into contact with the stone, as the harvesting unit 2 moves, the trigger rod 231 slides into the trigger sleeve 232, and the trigger sleeve 232 can also rotate on the guide frame 23, thereby preventing the spring 233 from being quickly squeezed.

[0045] Reference Figure 6 A second coil spring box 234 is provided at the hinge between the trigger sleeve 232 and the guide frame 23.

[0046] By providing the second coil spring box 234 , the trigger sleeve 232 can be promptly reset to the initial state after rotating.

[0047] Reference Fig.10 A screw rod 11 is vertically rotatably arranged on the connecting frame 1, and a lifting block 12 is fixedly arranged on the side of the harvesting unit 2. The screw rod 11 vertically penetrates the lifting block 12 and is threadedly matched with the lifting block 12.

[0048] A first rotary driver 13 for driving the screw rod 11 to rotate is arranged on the connecting frame 1 . The first rotary driver 13 is preferably a servo motor. The first rotary driver 13 drives the lifting block 12 to move up and down through the screw rod 11 .

[0049] Reference Fig.11 An inflatable sleeve 14 is arranged at the lower part of the lifting block 12, and an air pump 15 for inflating or deflating the inflatable sleeve 14 is arranged at one side of the inflatable sleeve 14.

[0050] When the screw rod 11 drives the lifting block 12 to rise, the inflatable sleeve 14 is connected to the outside through the air pump 15. When the lifting block 12 moves to the specified position, the air pump 15 fills gas into the inflatable sleeve 14 to reduce the pressure of the lifting block 12 on the lower thread of the screw rod 11, thereby extending the service life of the screw rod 11.

[0051] Reference Fig. 9 The harvesting unit 2 includes a chain saw harvester 24 arranged along the arrangement direction of the guide frame 23, and a plurality of knocking rods 241 are evenly fixedly arranged on the chain saw of the chain saw harvester 24.

[0052] The knocking rod 241 can break the stones that enter the gap without being detected by the rotating rod 21.

[0053] Reference Figure 3 , Figure 7 , Figure 8 , Fig.10 and Fig.11 A collecting unit 3 is arranged on one side of the harvesting unit 2, and the collecting unit 3 includes a collecting frame 31. A rotating door 32 is rotatably arranged on the side of the collecting frame 31 away from the harvesting unit 2. When the rotating door 32 is rotated and closed, the collecting frame 31 and the rotating door 32 form a collecting chamber for collecting reeds.

[0054] A belt conveyor 25 is provided on the guide frame 23 to push the reeds entering the gap toward the collecting unit 3. A second rotary driver 33 for driving the rotary door 32 to rotate is provided on the collecting frame 31. The second rotary driver 33 is preferably a servo motor. The excavator drives the harvesting unit 2 to harvest the reeds in a fan shape. When the harvesting unit 2 is in the harvesting state, the rotary door 32 is closed on the collecting frame 31. At this time, a collecting cavity is formed, and the collecting cavity collects the reeds. After the excavator drives the harvesting unit 2 to rotate one circle, the rotary door 32 is opened, and the reeds in the collecting frame 31 are discharged. When the harvesting unit 2 is raised or lowered, the collecting unit 3 is raised or lowered synchronously with the harvesting unit 2.

[0055] Reference Figure 2 An entry slot 34 for reeds to enter is provided on one side of the collecting frame 31 close to the harvesting unit 2, and a rotating frame 35 is rotatably provided on one side of the entry slot 34, and the rotating frame 35 is oriented toward the collecting frame 31 in the direction of the rotation tangent of the entry slot 34.

[0056] By rotating the rotating frame 35 , the rotating frame 35 can push the reeds into the collecting frame 31 and prevent the reeds in the collecting frame 31 from falling out through the entering groove 34 .

[0057] Working principle: When the harvesting unit 2 is harvesting, the harvesting unit 2 rotates around the excavator under the drive of the excavator arm, and the reeds slide into the gaps between adjacent guide frames 23 under the guidance of the guide frames 23. The rotating rod 21 and the chain saw harvester 24 are arranged in sequence from front to back on the guide frames 23 along the direction of the reeds sliding into the gaps. Since the rotating rod 21 is rotatably arranged in the guide frame 23, when the reeds pass through the guide frame 23, the reeds will not drive the rotating rod 21 to rotate, and only in the direction of the harvesting unit 2 When there is a stone on the upper part and the height of the stone is high, the rotating rod 21 will be pushed to rotate by the stone when passing through the stone. Since the rotating rod 21 is arranged at the front end of the chain saw harvester 24, when the harvesting unit 2 moves, when there is a stone in front of the harvesting unit 2, the rotating rod 21 will contact the stone before the chain saw harvester 24. When the stone pushes the rotating rod 21 to rotate to the maximum inclination angle, the lower end of the rotating rod 21 contacts the stone, and the lower end height of the rotating rod 21 is at the same height as the lower end surface of the chain saw harvester 24. When the height is the same, the harvesting unit 2 arranged on the connecting frame 1 moves in the vertical direction and starts to rise. If the lower end of the rotating rod 21 has reached the highest position of the stone at this time, the rotating rod 21 gradually rotates to the vertical state during the rising process of the harvesting unit 2. At this time, the angle of the rotating rod 21 gradually becomes smaller, and the harvesting unit 2 stops rising after rising the rated distance. The rated rising distance of the harvesting unit 2 needs to be set by the user according to actual conditions; on the contrary, if the rotating rod 21 is rotated to the maximum inclination angle, and the lower end of the rotating rod 21 has not moved to the highest position of the stone at this time, the inclination angle of the rotating rod 21 will always float near the maximum inclination angle during the rising process of the harvesting unit 2. At this time, the harvesting unit 2 continues to rise until the inclination angle of the rotating rod 21 can be stably located below the maximum inclination angle before stopping rising. At this time, the harvesting unit 2 drops again after maintaining the current height for a period of time. The length of time the harvesting unit 2 maintains the height can be set according to actual conditions.

[0058] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A wetland reed rapid harvesting device for an excavator, comprising a connecting frame (1) arranged at the end of the excavator arm and a harvesting unit (2) arranged on the connecting frame (1) for vertical movement; It is characterized in that The harvesting unit (2) comprises a plurality of guide frames (23) arranged in a horizontal direction, and there is a gap between adjacent guide frames (23) for reeds to slide into. A rotating rod (21) is rotatably arranged on the guide frame (23), and an angle sensor (22) for monitoring the tilt angle of the rotating rod (21) is arranged at the end of the rotating rod (21) at the rotating position, and a maximum tilt angle is preset. When the rotating rod (21) is not in contact with a stone, it is in a vertical state. When the rotating rod (21) rotates to the maximum tilt angle after contacting the stone, the harvesting unit (2) rises.

2. A wetland reed rapid harvesting device for an excavator according to claim 1, characterized in that: A first coil spring box (211) is arranged on one side of the rotating rod (21), the first coil spring box (211) and the angle sensor (22) are arranged on both sides of the rotating rod (21), and the first coil spring box (211) is connected to the end of the rotating rod (21) at the rotating position.

3. The wetland reed rapid harvesting device for an excavator according to claim 1, characterized in that: A trigger sleeve (232) is arranged at the end of the guide frame (23), a trigger rod (231) is slidably arranged in the trigger sleeve (232), one end of the trigger rod (231) extends from an end of the trigger sleeve (232) away from the guide frame (23), a spring (233) is arranged between the bottom of the trigger sleeve (232) and the end of the trigger rod (231), and a pressure sensor for detecting the elastic force of the spring (233) is arranged at the bottom of the trigger sleeve (232).

4. A wetland reed rapid harvesting device for an excavator according to claim 3, characterized in that: The trigger sleeve (232) is hinged on the guide frame (23), and the end of the trigger sleeve (232) away from the guide frame (23) is tilted downward.

5. The wetland reed rapid harvesting device for an excavator according to claim 4, characterized in that: A second coil spring box (234) is provided at the hinged portion between the trigger sleeve (232) and the guide frame (23).

6. The wetland reed rapid harvesting device for an excavator according to claim 1, characterized in that: A screw rod (11) is vertically rotatably arranged on the connecting frame (1), and a lifting block (12) is fixedly arranged on the side of the harvesting unit (2). The screw rod (11) vertically penetrates the lifting block (12) and is threadedly matched with the lifting block (12).

7. A wetland reed rapid harvesting device for an excavator according to claim 6, characterized in that: An inflatable sleeve (14) is arranged at the lower part of the lifting block (12), and an air pump (15) for inflating or deflating the inflatable sleeve (14) is arranged on one side of the inflatable sleeve (14).

8. The wetland reed rapid harvesting device for an excavator according to claim 1, characterized in that: The harvesting unit (2) comprises a chain saw harvester (24) arranged along the arrangement direction of the guide frame (23), and a plurality of knocking rods (241) are evenly fixedly arranged on the chain saw of the chain saw harvester (24).

9. The wetland reed rapid harvesting device for an excavator according to claim 1, characterized in that: A collecting unit (3) is arranged on one side of the harvesting unit (2), and the collecting unit (3) comprises a collecting frame (31). A rotating door (32) is rotatably arranged on a side of the collecting frame (31) away from the harvesting unit (2); when the rotating door (32) is rotated and closed, the collecting frame (31) and the rotating door (32) form a collecting chamber for collecting reeds.

10. The wetland reed rapid harvesting device for an excavator according to claim 9, characterized in that: An entry slot (34) for reeds to enter is provided on one side of the collecting frame (31) close to the harvesting unit (2), and a rotating frame (35) is rotatably provided on one side of the entry slot (34), with the rotation tangent direction of the rotating frame (35) toward the side of the entry slot (34) toward the collecting frame (31).

Images