Bean harvester anti-pinch pod reel

Abstract

This invention discloses an anti-pod-clamping stem lifter for bean harvesters, belonging to the field of agricultural harvesting technology. The anti-pod-clamping stem lifter includes two symmetrically arranged independent positioners, each of which includes a mounting frame fixedly connected to the harvester. This invention forms a "V"-shaped channel through two sliding plates and a straightening and gathering rod. The sliding plates are at a certain angle to the harvesting direction, gradually guiding the tilted or deviated stems to the center of the machine. At this time, the surface of the sliding plates is smooth and has low resistance, allowing the stems to naturally converge during the sliding process. The lifting guide rod is arranged upwards, generating a slight lifting force when the plant contacts it, thereby lifting the lower layer of bean pods to a certain height, preventing them from being clamped in the inlet area of ​​the harvesting belt feeding mechanism. This process is completed before the machine clamps the pods, effectively preventing the lower layer of bean pods from being crushed by the edge of the feeding belt. The sliding plates and the straightening rod form a natural guide angle, achieving automatic straightening of deviated stems and reducing stem clamping and breakage.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of agricultural harvesting technology, and particularly relates to a pod clamping prevention stalk lifting device for a legume harvester. BACKGROUND

[0002] A legume harvester is a special agricultural machine for efficiently harvesting legume crops such as soybeans and mung beans. It is usually based on a combine harvester and equipped with a special flexible header, which can cut and gently gather plants close to the ground, greatly reducing pod cracking and grain loss.

[0003] The core is gentle threshing. The machine needs to adjust the threshing cylinder speed to 50%-70% of grain harvesting, and increase the concave clearance to prevent fragile beans from being damaged. At the same time, the air speed of the cleaning fan also needs to be reduced to avoid blowing away small and light beans. Modern high-end harvesters are equipped with sensors to monitor the loss of grains at each link of the header, threshing, and cleaning in real time, helping the operator to adjust to the best state in time.

[0004] Using a legume harvester can control the harvesting loss rate to below 5%, and the efficiency is tens of times that of manual work. The current mainstream way is to replace the legume header of a general combine harvester and fine-tune it, taking into account economy and professionalism.

[0005] In the prior art, in the planting environment in Jilin area, the plant type of legume varieties is generally short, the height of lower pods from the ground is less than 100 mm, and the distribution density of plants in the field is uneven, causing the problem of easy clamping and crushing of lower pods or clamping of tilted stems in the harvesting process, affecting the harvesting quality and yield. SUMMARY

[0006] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a legume harvesting device with a pod clamping prevention stalk lifting device.

[0007] The technical solution adopted to solve the above technical problems is: a pod clamping prevention stalk lifting device for a legume harvester, comprising two symmetrical independent positioners, and each of the two independent positioners comprises a mounting load-bearing frame fixedly connected with the harvester, and one end of the mounting load-bearing frame is provided with a harvesting belt feeding mechanism for clamping and conveying legume stems.

[0008] Through the above technical solution, the two independent positioners can lift the legume stems, and then convey the legume stems. The mounting load-bearing frame can be used to fixedly install the whole device on the harvester. The harvesting belt feeding mechanism can stably clamp and convey the stems into the pod removal mechanism to complete the subsequent pod removal and conveying process.

[0009] Two mounting load-bearing frames are fixedly connected with a pod clamping prevention stalk lifting structure at one end near the harvesting belt feeding mechanism for lifting the stems.

[0010] Through the above technical solution, the anti-clamping and pod-supporting structure can guide and support the bean stalks, so that the bean stalks remain vertical when harvested, and can effectively prevent the lower bean pods from being crushed by the edge of the harvesting belt feeding mechanism.

[0011] Furthermore, the harvester belt feeding mechanism includes two symmetrically arranged positioning mounting plates, which are fixedly connected to both sides of the mounting support frame. The mounting support frame is fixedly connected to two symmetrically arranged tensioning mounting frames on both sides of the positioning mounting plates.

[0012] Through the above technical solution, the positioning mounting plate can support and install the positioning wheel, so that the positioning wheel and the corresponding rotating mounting shaft are integrated and fixedly installed on the mounting support frame, and the tensioning mounting frame can integrate and install the corresponding rotating mounting shaft and tensioning wheel on the mounting support frame.

[0013] Furthermore, the tensioning mounting frame and the two positioning mounting plates are connected by a plurality of rotating mounting shafts, the two rotating mounting shafts located at the tensioning mounting frame are rotatably connected to tensioning wheels, and the plurality of rotating mounting shafts located at the positioning mounting plates are rotatably connected to positioning wheels.

[0014] Through the above technical solution, the tension wheel and the positioning wheel can be installed on the rotating mounting shaft, so that the tension wheel and the positioning wheel rotate around the rotating mounting shaft. The positioning wheel supports the feed belt, and the tension wheel supports the feed belt, so that the feed belt is kept taut. The feed belt between the two independent positioners forms a conveying channel.

[0015] Furthermore, a feed belt for conveying the stalks is provided between the tension wheel and the positioning wheel.

[0016] Through the above technical solution, the feed belt can smoothly clamp and transport the upright bean stalks into the pod-removing mechanism when it is running.

[0017] Furthermore, each of the two mounting load-bearing frames is fixedly connected to two symmetrically arranged protective cover mounting brackets, and the two protective cover mounting brackets are fixedly connected to fixed protective covers for protection by bolts.

[0018] The above technical solution provides a carrier for the installation of the fixed protective cover by means of the protective cover mounting bracket, and makes the fixed protective cover and the mounting support frame have a large space, which can avoid the tension wheel, positioning wheel and feeding belt from rubbing against the inside of the fixed protective cover during operation. In addition, the protective cover mounting bracket can protect the position of the harvesting belt feeding mechanism, and prevent foreign objects and dust during harvesting from affecting the normal operation of the harvesting belt feeding mechanism.

[0019] Furthermore, the anti-pinch pod supporting structure includes a fixed support frame connected to the mounting load-bearing frame. The fixed support frame has mounting holes, and the fixed support frame and the mounting load-bearing frame are fixedly connected through the mounting holes and fixing bolts.

[0020] Through the above technical solution, the fixed support frame can install and support the overall structure of the anti-pinch pod and rice-supporting structure, and the anti-pinch pod and rice-supporting structure equipment can be fixed on the installation support frame through the mounting holes and the fixed support frame.

[0021] Furthermore, the bottom of the fixed support frame is fixedly connected to an arc-shaped sliding plate by fixing bolts, the side wall of the fixed support frame is fixedly connected to a straightening and gathering rod, and the side wall of the fixed support frame is fixedly connected above the straightening and gathering rod to a straightening guide rod.

[0022] Through the above technical solution, two sliding plates and straightening and gathering rods form a "V"-shaped channel. The sliding plates are at a certain angle to the harvesting direction, so that the tilted or deviated stalks are gradually guided to the center of the machine. At this time, the surface of the sliding plates is smooth and the resistance is small. The stalks naturally gather during the sliding process, which makes it easier to enter the feeding mechanism of the harvesting belt. When the harvester moves forward, the bean plants first come into contact with the straightening guide rod at the front end of the independent locator. The straightening guide rod is arranged in an upward manner, and the front end is designed with a smooth arc, so that the plants generate a slight lifting force when they come into contact, thereby lifting the lower layer of bean pods to a certain height and making them avoid the inlet area of ​​the feeding mechanism of the harvesting belt. This process is completed before the machine clamps, which can effectively prevent the lower layer of bean pods from being crushed by the edge of the feeding belt.

[0023] Furthermore, the straightening and gathering rod extends away from the harvester belt feeding mechanism, and the straightening guide rod extends towards the harvester belt feeding mechanism.

[0024] Furthermore, the fixed protective cover includes a protective armor for wrapping the harvesting belt feeding mechanism, which is fixedly connected to the protective cover mounting bracket, and a guide armor fixedly connected to the protective cover mounting bracket near the anti-pinch pod-supporting structure.

[0025] Through the above technical solution, the main function of the protective armor is to protect the harvesting belt feeding mechanism, so as to prevent harvesting impurities such as mud and dust from affecting the normal use of the harvesting belt feeding mechanism. The guide armor is conical, which can squeeze the stalks between the two harvesting belt feeding mechanisms and push other stalks to the outside of the equipment to prevent them from being crushed by the independent positioner.

[0026] The beneficial effects of this invention are as follows: A "V"-shaped channel is formed by two sliding plates and a straightening and gathering rod. The sliding plates are at a certain angle to the harvesting direction, gradually guiding the tilted or skewed stems to the center of the machine. At this time, the surface of the sliding plates is smooth with low resistance, and the stems naturally gather during the sliding process. The straightening and guiding rod is arranged upwards, generating a slight lifting force when the plants come into contact, thereby lifting the lower pods to a certain height and preventing them from entering the feed mechanism of the harvesting belt. This process is completed before the machine clamps the pods, effectively preventing the lower pods from being crushed by the edge of the feed belt. The sliding plates and the straightening rod form a natural guide angle, automatically straightening the skewed stems and reducing stem clamping and breakage. Furthermore, this invention has a simple structure and is easy to maintain: no additional power is required, installation and disassembly are simple, suitable for agricultural machinery users to install themselves or use in batches, adaptable to field environments with low pod distribution, and can significantly improve harvest quality. Attached Figure Description

[0027] Figure 1 This is a partial structural diagram from a first-view perspective of the anti-pod-clamping and pod-lifting device for a bean harvester according to the present invention;

[0028] Figure 2 This is a partial perspective view of the anti-pod-clamping and pod-lifting device for a bean harvester according to the present invention;

[0029] Figure 3 This is a perspective view of the independent positioner of the anti-pod-pinch and pod-lifting device for a bean harvester according to the present invention;

[0030] Figure 4 This is a perspective view of the anti-pinch and pod-lifting structure of the anti-pinch pod lifter for a bean harvester according to the present invention;

[0031] Figure 5 This is a partial structural diagram of the independent locator of the anti-pod-clamping and pod-lifting device for a bean harvester according to the present invention;

[0032] Figure 6 This is an installation diagram of the positioning wheel and tensioning wheel of the anti-pod-clamping and lifting device for a bean harvester according to the present invention;

[0033] Figure 7 This is a schematic diagram of the mounting frame structure of the anti-pod-clamping and pod-lifting device for a bean harvester according to the present invention;

[0034] Figure 8 This is an assembly drawing of the fixed protective cover for the anti-pod-clamping and pod-lifting device for a bean harvester according to the present invention.

[0035] Reference numerals: 1. Mounting support frame; 2. Fixed protective cover; 20. Protective armor; 21. Guide armor; 3. Anti-pinch pod and rice-supporting structure; 30. Fixed support frame; 31. Straw straightening and gathering; 32. Rice-supporting guide rod; 33. Sliding plate; 34. Mounting hole; 4. Harvesting belt feeding mechanism; 40. Tensioning wheel; 41. Positioning wheel; 42. Positioning mounting plate; 43. Feeding belt; 44. Tensioning mounting frame; 45. Rotating mounting shaft; 5. Protective cover mounting frame. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0037] like Figures 1-8 As shown, the anti-pod-clamping and pod-lifting device for a bean harvester in this embodiment includes two symmetrically arranged independent locators, and each of the two independent locators includes a mounting frame 1 fixedly connected to the harvester. The device is characterized in that: one end of the mounting frame 1 is provided with a harvesting belt feeding mechanism 4 for clamping and conveying bean stalks; the two independent locators can lift the bean stalks and then convey them; the mounting frame 1 can fix the entire device in place; and the device can be installed on the harvester; the harvesting belt feeding mechanism 4 can smoothly clamp and convey the stalks into the pod-removing mechanism to complete the subsequent pod-removing and conveying process.

[0038] The harvester belt feeding mechanism 4 includes two symmetrically arranged positioning mounting plates 42. The positioning mounting plates 42 are fixedly connected to both sides of the mounting support frame 1. The mounting support frame 1 is fixedly connected to two symmetrically arranged tension mounting frames 44 on both sides of the positioning mounting plates 42. The positioning mounting plates 42 can support and install the positioning wheels 41, so that the positioning wheels 41 and the corresponding rotating mounting shafts 45 are integrated and fixedly installed on the mounting support frame 1. The tension mounting frames 44 can integrate and install the corresponding rotating mounting shafts 45 and tension wheels 40 on the mounting support frame 1.

[0039] Several rotating mounting shafts 45 are fixedly connected through the tension mounting frame 44 and the two positioning mounting plates 42. Tensioning wheels 40 are rotatably connected to the two rotating mounting shafts 45 located at the tension mounting frame 44. Positioning wheels 41 are rotatably connected to the several rotating mounting shafts 45 located at the positioning mounting plates 42. The rotating mounting shafts 45 can mount the tensioning wheels 40 and the positioning wheels 41, so that the tensioning wheels 40 and the positioning wheels 41 rotate around the rotating mounting shafts 45. The positioning wheels 41 support the feed belt 43, and the tensioning wheels 40 can also support the feed belt 43, so that the feed belt 43 is kept taut. The feed belt 43 between the two independent positioners forms a conveying channel.

[0040] A feed belt 43 for conveying stalks is provided between the tension wheel 40 and the positioning wheel 41. When the feed belt 43 is running, it can smoothly clamp the raised bean stalks and convey them into the pod-removing mechanism.

[0041] Two mounting load-bearing frames 1 are fixedly connected to an anti-pinch pod-supporting structure 3 at one end near the harvesting belt feeding mechanism 4. The anti-pinch pod-supporting structure 3 can guide and support the bean stalks, so that the bean stalks remain vertical when harvested. This can effectively prevent the lower bean pods from being crushed by the edge of the harvesting belt feeding mechanism 4.

[0042] The anti-pinch pod-supporting structure 3 includes a fixed support frame 30 connected to the mounting load-bearing frame 1. The fixed support frame 30 has mounting holes 34, and the fixed support frame 30 and the mounting load-bearing frame 1 are fixedly connected through the mounting holes 34 and fixing bolts. The fixed support frame 30 can support the overall structure of the anti-pinch pod-supporting structure 3, and the anti-pinch pod-supporting structure 3 is fixed to the mounting load-bearing frame 1 through the mounting holes 34 and the fixed support frame 30.

[0043] A circularly shaped sliding plate 33 is fixedly connected to the bottom of the fixed support frame 30 via fixing bolts. A straightening and consolidating stem 31 is fixedly connected to the side wall of the fixed support frame 30. A straightening guide rod 32 is fixedly connected to the side wall of the fixed support frame 30 above the straightening and consolidating stem 31. The two sliding plates 33 and the straightening and consolidating stem 31 form a "V" shaped channel. The sliding plate 33 is at a certain angle to the harvesting direction, so that the tilted or deviated stems are gradually guided to the center of the machine. At this time, the surface of the sliding plate 33 is smooth and the resistance is small. As the stalks slide, they naturally gather together, making it easier for them to enter the harvester belt feeding mechanism 4. When the harvester moves forward, the bean plants first come into contact with the lifting guide rod 32 at the front end of the independent locator. The lifting guide rod 32 is arranged in an upward manner, and the front end has a smooth arc design, which generates a slight lifting force when the plant comes into contact with it, thereby lifting the lower layer of bean pods to a certain height and keeping them away from the inlet area of ​​the harvester belt feeding mechanism 4. This process is completed before the machine clamps them, which can effectively prevent the lower layer of bean pods from being crushed by the edge of the feeding belt 43.

[0044] The straightening and gathering rod 31 extends away from the harvester belt feeding mechanism 4, and the straightening guide rod 32 extends towards the harvester belt feeding mechanism 4.

[0045] Two symmetrically arranged protective cover mounting brackets 5 are fixedly connected to the surface of each of the two mounting support frames 1. Fixed protective covers 2 for protection are fixedly connected to the two protective cover mounting brackets 5 by bolts. The protective cover mounting brackets 5 provide a carrier for the installation of the fixed protective covers 2 and make the fixed protective covers 2 and the mounting support frame 1 have a large space. This can avoid the tension wheel 40, positioning wheel 41 and feeding belt 43 from rubbing against the inside of the fixed protective cover 2 when they are running. The protective cover mounting brackets 5 can also protect the position of the harvesting belt feeding mechanism 4 and prevent foreign objects and dust from affecting the normal operation of the harvesting belt feeding mechanism 4 during harvesting.

[0046] The fixed protective cover 2 includes a protective armor 20 for wrapping the harvester belt feeding mechanism 4, which is fixedly connected to the protective cover mounting frame 5. It also includes a guide armor 21 fixedly connected to the protective cover mounting frame 5 near the anti-pinch pod-supporting structure 3. The main function of the protective armor 20 is to protect the harvester belt feeding mechanism 4 and prevent harvesting impurities such as mud and dust from affecting the normal use of the harvester belt feeding mechanism 4. The guide armor 21 is conical and can squeeze the stalks between the two harvester belt feeding mechanisms 4 and push other stalks outward to the outside of the equipment to prevent them from being crushed by the independent positioner.

[0047] The working principle of this embodiment is as follows:

[0048] 1) Guiding and lifting stage

[0049] As the harvester moves forward, the bean plants first come into contact with the lifting guide rod 32 at the front end of the lifting device. The lifting guide rod 32 is arranged in an upward manner with a smooth arc design at the front end, which generates a slight lifting force when the plant comes into contact with it, thereby lifting the lower layer of bean pods to a certain height and keeping them away from the inlet area of ​​the harvesting belt feeding mechanism 4. This process is completed before the machine clamps them, which can effectively prevent the lower layer of bean pods from being crushed by the edge of the harvesting belt feeding mechanism 4.

[0050] 2) Introduction stage of Sedum aizoon

[0051] After the plant is lifted by the guide rod 32, it enters the "V" shaped channel formed by the sliding plate 33 and the straightening and gathering rod 31. The sliding plate 33 is at a certain angle to the harvesting direction, so that the tilted or deviated stems are gradually guided to the center of the machine. At this time, the surface of the sliding plate 33 is smooth and the resistance is small. The stems naturally gather during the sliding process, which makes it easy to enter the harvesting belt feeding mechanism 4.

[0052] 3) Correction and straightening stage

[0053] After the legume stalks are guided into the "V" shaped channel, the straightening and accumulating stalk 31 plays a supporting role. If the plant leans to one side, the straightening and accumulating stalk 31 will provide lateral support, forcing the stalks to enter the harvesting opening perpendicular to the ground, thereby preventing the stalks from being caught, broken, or stuck when they are leaning.

[0054] 4) Collaborative Harvest Phase

[0055] After the plants are guided and straightened, they enter the clamping area of ​​the harvester belt feeding mechanism 4. At this time, the lower pods have been lifted to a safe height, and the stems remain vertical. The feeding belt 43 can smoothly clamp and transport the stems into the pod-removing mechanism to complete the subsequent pod-removing and conveying process. The entire guiding and clamping process is completed continuously without affecting the original harvester's operating rhythm.

[0056] 5) Left and right adaptive protection

[0057] The independent positioner has a symmetrical structure and is installed on both sides of the harvester's feed inlet. When the machine deviates slightly or the stalks are unevenly distributed in the field, the independent positioner on one side will contact the plant first and straighten it, bringing the whole plant back to the middle path and preventing it from being clamped and tilted. The straightening and gathering rods 31 and the straightening and guiding rods 32 on the left and right sides form an active and flexible guide, giving the operation a certain degree of self-adaptive correction capability.

[0058] Through the above process, the present invention achieves a triple linkage effect of "guiding and supporting the pods - lifting and preventing pinching - gathering and straightening", enabling the harvester to maintain efficient and stable harvesting performance in complex field environments, effectively reducing the pod clamping rate and breakage rate, and improving the integrity of commercial pods and harvesting efficiency.

[0059] The main function of the protective armor 20 is to protect the harvester belt feeding mechanism 4 and prevent harvesting impurities such as mud and dust from affecting the normal use of the harvester belt feeding mechanism 4. The guide armor 21 is conical and can squeeze the stalks between the two harvester belt feeding mechanisms 4 and push other stalks to the outside of the equipment to prevent them from being crushed by the independent positioner.

[0060] Before use, the feeding belt 43 needs to be adjusted by the tensioning wheel 40 (the tensioning mounting bracket 44 on the side away from the anti-pinch and supporting structure 3 is sleeved on the outside of the mounting support frame 1, and the tensioning wheel 40 at the corresponding position can be pulled and adjusted) so that the feeding belt 43 is taut. When the tensioning wheel 40 rotates, it can apply power to the feeding belt 43, so that when the stalk is lifted, the stalk can be transmitted through the two feeding belts 43. The positioning wheel 41 supports the feeding belt 43, so that the feeding belt 43 is kept taut and does not collapse when the stalk is transmitted.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A pod-clamping device for a bean harvester, comprising two symmetrically arranged independent positioners, each of which includes a mounting frame (1) fixedly connected to the harvester, characterized in that: The mounting support frame (1) is provided with a harvesting belt feeding mechanism (4) for clamping and conveying bean stalks at one end. The two mounting load-bearing frames (1) are fixedly connected to a pod-clamping and stalk-supporting structure (3) at one end near the harvesting belt feeding mechanism (4). The anti-pinch pod supporting structure (3) includes a fixed support frame (30) connected to the mounting load-bearing frame (1). The fixed support frame (30) has a mounting hole (34) at the position, and the fixed support frame (30) and the mounting load-bearing frame (1) are fixedly connected through the mounting hole (34) and fixing bolts. The bottom of the fixed support frame (30) is fixedly connected to a circularly arc-shaped sliding plate (33) by fixing bolts. The side wall of the fixed support frame (30) is fixedly connected to a straightening and gathering rod (31). The side wall of the fixed support frame (30) is fixedly connected above the straightening and gathering rod (31) to a straightening guide rod (32). The straightening and gathering rod (31) extends away from the harvester belt feeding mechanism (4), and the straightening guide rod (32) extends towards the harvester belt feeding mechanism (4).

2. The anti-pod-pinch and pod-lifting device for a bean harvester according to claim 1, characterized in that, The harvester belt feeding mechanism (4) includes two symmetrically arranged positioning mounting plates (42). The positioning mounting plates (42) are fixedly connected to both sides of the mounting support frame (1). The mounting support frame (1) is fixedly connected to two symmetrically arranged tensioning mounting frames (44) on both sides of the positioning mounting plates (42).

3. The anti-pod-pinch and pod-lifting device for a bean harvester according to claim 2, characterized in that, The tensioning mounting bracket (44) and the two positioning mounting plates (42) are connected by a number of rotating mounting shafts (45). The two rotating mounting shafts (45) located at the position of the tensioning mounting bracket (44) are rotatably connected to tensioning wheels (40). The rotating mounting shafts (45) located at the position of the positioning mounting plates (42) are rotatably connected to positioning wheels (41).

4. The anti-pod-pinch and pod-lifting device for a bean harvester according to claim 3, characterized in that, A feed belt (43) for conveying stems is provided between the tension wheel (40) and the positioning wheel (41).

5. The anti-pod-pinch and pod-lifting device for a bean harvester according to claim 1, characterized in that, Two symmetrically arranged protective cover mounting brackets (5) are fixedly connected to the surface of each of the two mounting load-bearing brackets (1), and fixed protective covers (2) for protection are fixedly connected to the two protective cover mounting brackets (5) by bolts.

6. The anti-pod-pinch and pod-lifting device for a bean harvester according to claim 5, characterized in that, The fixed protective cover (2) includes a protective armor (20) for wrapping the harvesting belt feeding mechanism (4) and is fixedly connected to the protective cover mounting bracket (5), and also includes a guide armor (21) fixedly connected to the protective cover mounting bracket (5) near the anti-pinch pod supporting structure (3).

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