Ramie harvesting and collecting mechanism

Abstract

The present invention discloses an agricultural machine, more specifically, a ramie harvesting and collecting mechanism, and its technical key points are: a ramie harvesting and collecting mechanism, comprising a frame, a plurality of cutting discs and a header, wherein the plurality of cutting discs are mounted on the header, the header is floatingly connected to the frame, and also comprises an adjustment device, wherein the adjustment device comprises a movable wheel set and a traction structure, wherein the movable wheel set is in contact with the ground and rises and falls under the action of the terrain, and the traction structure connects the header and the movable wheel set and drives the header to perform a lifting movement opposite to that of the movable wheel set. In the harvesting process, the height of the header can be adjusted according to the change of the terrain, and the flexibility is high.

Description

[Technical field]

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a ramie harvesting and collecting mechanism. [Background technology]

[0002] Ramie is generally harvested three times a year. With the traditional manual harvesting method, the operation of harvesting ramie fiber accounts for more than three-fifths of the labor in the entire production process. It is labor-intensive, time-consuming, and requires high technical requirements. Mechanized harvesting equipment is the key to the production of ramie raw materials and feed, and is also one of the important factors affecting the development of ramie production towards large-scale industrialization. Therefore, in order to promote the efficient development of ramie production, the research and innovation of harvesting technology and harvesting machinery are particularly important. Due to the special ground conditions for ramie planting, due to the need for drainage and irrigation, the ridges in the ramie fields are high and the ground is full of gullies, often uneven. The cutting table of existing ramie harvesters is usually suspended. During the cutting process, the cutting table will rise due to the sudden rise in terrain, resulting in insufficient cutting and increased stubble, and the quality of the harvested crops is not high, or it will collide with the ground due to a sudden drop in terrain, causing damage to the cutting device and reducing its service life. [Summary of the invention]

[0003] The purpose of the present invention is to provide a ramie harvesting and collecting mechanism, which has the advantage that the height of the harvesting platform can be adjusted according to the change of terrain during the harvesting process, and has high flexibility.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] A ramie harvesting and collecting mechanism comprises a frame, a plurality of cutting discs and a cutting platform, wherein the plurality of cutting discs are mounted on the cutting platform, and the cutting platform is floatingly connected to the frame, and also comprises an adjustment device, wherein the adjustment device comprises a movable wheel group and a traction structure, wherein the movable wheel group contacts the ground and rises and falls due to the terrain, and the traction structure connects the cutting platform and the movable wheel group and drives the cutting platform to perform a lifting movement opposite to that of the movable wheel group.

[0006] By adopting the above technical scheme, when the ramie harvester is harvesting the ramie field, the movable wheel group and the traction structure can cooperate to make the cutting table perform a lifting movement opposite to the change in terrain, so that the cutting table can maintain a certain distance from the ground. This can prevent the cutting table from colliding with the ground and damaging the cutting disc due to a sudden drop in terrain, and can also prevent the cutting table from lifting the cutting disc and causing the stubble to rise due to a sudden rise in terrain, thereby reducing economic losses.

[0007] The present invention is further configured as follows: the movable wheel group also includes a connecting shaft, a swing rod and a wheel hub, the wheel hub is provided with a central rotating shaft, one end of the swing rod is rotatably connected to the connecting shaft, and the other end of the swing rod is rotatably connected to the central rotating shaft, so that the wheel hub can swing up and down around the connecting shaft according to changes in terrain when rolling on the ground; the traction structure includes a first support, a first pulley and a first traction rope; the first pulley includes a first shell, the first shell is rotatably connected to the first wheel body, the first support is connected to the frame, the first shell is fixedly connected to the first support, one end of the first traction rope is connected to the wheel hub, and the other end of the first traction rope is connected to the cutting platform after changing direction through the first wheel body.

[0008] By adopting the above technical solution, the pulley rope structure composed of the first traction rope and the first pulley can realize the reverse movement of the cutting table and the wheel hub. Not only is the structure simple, but the direction of force can be adjusted more flexibly and the movement feedback is faster.

[0009] The present invention is further configured as follows: the traction structure also includes a second support, a second pulley and a second traction rope; the second pulley includes a second shell, the second shell is rotatably connected to a second wheel body, the second support is fixed on the frame, the first traction rope passes through the first wheel body, the second wheel body and the second support in sequence and is fixedly connected, the second pulley is suspended above the cutting platform through the contact between the second wheel body and the first traction rope, one end of the second traction rope is connected to the second wheel body, and the other end of the second traction rope is connected to the platform body.

[0010] The present invention is further configured as follows: the cutting table includes a table body and a sliding assembly, the table body is used to carry the cutting disc, the sliding assembly is 2 in number and respectively arranged on both sides of the table body; the sliding assembly includes a sliding rod and a sliding block, the sliding rod is fixedly connected to the frame, the sliding block is fixedly connected to the table body, the sliding rod is inserted into the sliding block and is slidably connected to the sliding block, so that the table body is slidably connected to the frame.

[0011] The present invention is further configured as follows: the sliding assembly also includes a first limit plate and a second limit plate, the first limit plate is arranged at the upper end of the sliding rod, the second limit plate is arranged at the lower end of the sliding rod, and the upper and lower ends of the sliding rod are respectively provided with a first spring and a second spring; one end of the first spring is connected to the first limit plate, the other end of the first spring is connected to the sliding block, one end of the second spring is connected to the second limit plate of the shaft, and the other end of the second spring is connected to the sliding block.

[0012] The present invention is further configured as follows: the movable wheel group also includes a connecting rod and a return spring, the connecting rod is connected to the frame, one end of the return spring is connected to the connecting rod, and the other end of the return spring is connected to the shaft swing rod.

[0013] The present invention is further configured as follows: the frame is provided with a slide groove, the slide groove is arranged vertically on the ground, the second wheel body of the second pulley is provided with a sliding member, the sliding member is slidably connected to the slide groove, so that the second pulley is slidably connected to the frame.

[0014] In summary, the present invention has the following beneficial effects: when the ramie harvester is mechanized to harvest ramie, as the ramie harvester moves forward, the movable wheel group can sense the change in terrain, and then pull the cutting platform carrying the cutting disk up and down, so that the distance between the cutting disk and the ground is kept constant, preventing the cutting disk from colliding with the ground, while achieving the purpose of maintaining the cutting height of the cutting disk and improving the harvesting effect.

Brief Description of the Drawings

[0015] Figure 1 It is an overall schematic diagram of the ramie harvesting and collecting mechanism;

[0016] Figure 2 It is a side structural diagram of a ramie harvesting and collecting mechanism;

[0017] Figure 3 It is a structural diagram of a ramie harvesting and collecting mechanism;

[0018] Figure 4 It is a structural schematic diagram of the second pulley.

[0019] 1. frame; 2. cutting table; 21. table body; 22. sliding assembly; 221. sliding rod; 222. sliding block; 223. upper limit plate; 224. lower limit plate; 225. first spring; 226. second spring; 3. cutting disc; 5. adjusting device; 51. movable wheel group; 511. connecting shaft; 512. swing rod; 513. hub; 514. central rotating shaft; 515. connecting rod; 516. reset spring; 52. traction structure; 521. first support; 522. first pulley; 5221. first shell; 5222. first wheel body; 523. first traction rope; 524. second support; 525. second pulley; 5251. second shell; 5252. second wheel body; 526. second traction rope; 527. slide groove; 528. sliding member. [Specific implementation method]

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that the descriptions such as “first” and “second” used in the embodiments of the present invention are for descriptive purposes only and should not be understood as indicating or implying the number of technical features defined. Therefore, the features defined as “first” and “second” in each embodiment of this specification may indicate that at least one of the defined technical features is included.

[0022] The technical solutions of the various embodiments of the present invention described in this specification may be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that the combination of technical solutions does not exist.

[0023] refer to Figure 1 A ramie harvesting and collecting mechanism includes a frame 1, a cutting platform 2 is floatingly connected to the frame 1, a plurality of cutting discs 3 for cutting ramie are installed on the cutting platform 2, the cutting discs are driven by the transmission mechanism of the ramie harvester, and also includes an adjustment device 5 for adjusting the height of the cutting platform 2, the adjustment device 5 includes a movable wheel group 51 for contacting the ground and rising and falling with the change of terrain, and also includes a traction structure 52 linearly connected with the movable wheel group 51 to drive the cutting platform 2 and the movable wheel group 51 to rise and fall in the opposite direction.

[0024] When working, the ramie harvester performs mechanized harvesting along the ramie field ridges, the ramie harvester keeps moving forward, and the transmission mechanism drives the cutting disc 3 to rotate and cut the ramie stalks. During this period, the movable wheel group 51 senses the terrain changes and feeds back to the cutting table 2 through the traction structure 52, and the cutting table 2 is pulled up and down, so that the cutting table 2 maintains a certain distance from the ground, which can prevent the cutting table 2 from being lifted due to the rising terrain, resulting in insufficient cutting of the cutting table 2, and can also prevent the cutting table 2 from falling due to the subsidence of the terrain, causing the cutting disc 3 to contact and collide with the ground, thereby improving the service life of the cutting disc 3.

[0025] refer to Figure 2 As a specific embodiment of the improvement, the cutting table 2 includes a table body 21 and a sliding assembly 22. A plurality of cutting discs 3 are evenly arranged on the table body 21. The table body 21 is slidably connected to the mechanism through the sliding assembly 22. The number of sliding assemblies 22 is 2, and they are arranged in parallel on both sides of the table body 21. The sliding assembly 22 includes a sliding rod 221 and a sliding block 222. The sliding rod 221 is fixedly connected to the frame 1, and the sliding block 222 is fixedly connected to the table body 21. The sliding rod 221 is inserted into the sliding block 222 and forms a sliding connection with the sliding block 222, so that the table body 21 is slidably connected to the shaft 511 on the frame 1.

[0026] Through the above scheme, the platform body 21 forms a double sliding connection with the frame 1 through the sliding assembly 22, so that the sliding connection between the cutting platform 2 and the frame 1 is more firm, the sliding stability is strong, the sliding is smoother, and it is not easy to be damaged.

[0027] refer to Figure 2As an improved specific implementation, an upper limit plate 223 is provided at the top of the sliding rod 221, and a lower limit plate 224 is provided at the bottom end of the sliding rod 221. A first spring 225 and a second spring 226 are sleeved on the sliding rod 221. One end of the first spring 225 is connected to the upper limit plate 223, and the other end of the first spring 225 is connected to the sliding block 222. One end of the second spring 226 is connected to the upper limit plate 223, and the other end of the second spring 226 is connected to the sliding block 222.

[0028] Through the above scheme, the upper and lower ends of the slide bar 221 are limited by the upper limit plate 223 and the lower limit plate 224, which can prevent the platform 21 from separating from the slide bar 221 due to excessive changes in terrain; the first spring 225 and the second spring 226 are sleeved on the slide bar 221, which not only provide elastic pre-tightening force for pulling and supporting the platform 21 through the first spring 225 and the second spring 226, but also reduce the load and strength requirements on the traction structure 52 and the movable wheel group 51, making the traction smoother, and in addition, it can provide buffer protection for the platform 21 when it is raised and lowered, avoiding rigid collision and damage to the platform 21, the slider 222, etc.

[0029] refer to Figure 2 As an improved specific implementation, the movable wheel group 51 includes a connecting shaft 511, a swing rod 512 and a hub 513; the connecting shaft 511 is arranged on the frame 1, the hub 513 is provided with a central rotating shaft 514, one end of the swing rod 512 is rotatably connected to the connecting shaft 511, and the other end of the swing rod 512 is rotatably connected to the central rotating shaft 514, so that the hub 513 can swing up and down around the connecting shaft 511 according to the change of terrain when rolling on the ground. The traction structure 52 includes a first support 521, a first pulley 522 and a first traction rope 523; the first pulley 522 includes a first shell 5221, a first wheel body 5222 is rotatably connected in the first shell 5221, the first support 521 is connected to the frame 1, the first shell 5221 is fixedly connected to the first support 521, one end of the first traction rope 523 is connected to the hub 513, and the other end of the first traction rope 523 is fixedly connected to the floating platform after changing direction through the first wheel body 5222.

[0030] Through the above scheme, when working, the wheel hub 513 rolls and contacts the ground on both sides of the ramie field ridge. When the terrain rises, the wheel hub 513 follows the swing rod 512 to swing upward around the connecting shaft 511. During the swinging process, the first traction rope 523 is loosened, and the cutting platform 2 moves downward under the action of its own weight; when the terrain sinks, the wheel hub 513 follows the swing rod 512 to swing downward around the connecting shaft 511. The wheel hub 513 pulls the first traction rope 523 by its own weight, exerting an upward pulling force on the cutting platform 2 to make it rise. The pulley rope structure composed of the first traction rope 523 and the first pulley 522 is used to realize the reverse movement of the cutting platform 2 and the wheel hub 513. Not only is the structure simple, but the direction of the force is more flexible to adjust, and the motion feedback is more rapid.

[0031] refer to Figure 3 As a specific embodiment of the improvement, the traction structure 52 also includes a second support 524, a second pulley 525 and a second traction rope 526. The second pulley 525 includes a second shell 5251. A second wheel body 5252 is rotatably connected inside the second shell 5251. The second support 524 is connected to the frame 1. The first traction rope 523 passes through the first wheel body 5222 and the second wheel body 5252 in sequence and is connected to the second support 524. The second pulley 525 is suspended above the platform 21 through the contact between the second wheel body 5252 and the first traction rope 523. One end of the second traction rope 526 is connected to the second wheel body 5252, and the other end of the second traction rope 526 is connected to the platform 21.

[0032] Through the above scheme, the first traction rope 523 is directly connected to the second support 524, and a second pulley 525 and a second traction rope 526 are added to form a movable pulley group to pull the cutting platform 2, which greatly reduces the pulling force required to pull the cutting platform 2 and makes it easier for the movable wheel group 51 to pull the cutting platform 2.

[0033] refer to Figure 2 , Figure 3 As an improved specific implementation, the movable wheel group 51 also includes a connecting rod 515 and a return spring 516, the connecting rod 515 is connected to the frame 1, one end of the return spring 516 is connected to the connecting rod 515, and the other end of the return spring 516 is connected to the swing rod 512 of the shaft 511.

[0034] Through the above scheme, when working, according to the changes in terrain, the reset elastic follows the up and down swing of the swing rod 512 and is synchronously squeezed or stretched, applying an elastic preload force downward or upward to the wheel hub 513, accelerating the reset of the wheel hub 513, so that the wheel hub 513 can fit closely to the ground, thereby improving the pulling accuracy of the pulling structure on the cutting platform 2 and making the movement of the mechanism more compact.

[0035] refer to Figure 3 , Figure 4As an improved specific implementation, the frame 1 is also provided with a slide groove 527, which is arranged vertically on the ground. A sliding member 528 is provided on the second shell 5251 of the second pulley 525, and the sliding member 528 is slidably connected to the slide groove 527, so that the second pulley 525 is slidably connected to the frame 1.

[0036] Through the above scheme, the second pulley 525 is slidably connected to the frame 1, which constrains the movement trajectory of the second pulley 525, effectively avoiding the second pulley 525 from shaking due to terrain changes or mechanical movement during operation, making the sliding of the cutting platform 2 more precise and stable.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the method of the present invention. These improvements and supplements should also be regarded as the scope of protection of the present invention.

Claims

1. A ramie harvesting and collecting mechanism, comprising a frame (1), a plurality of cutting discs (3) and a cutting table (2), wherein the plurality of cutting discs (3) are mounted on the cutting table (2), characterized in that: The cutting platform (2) is connected to the frame (1) in a floating manner and further comprises an adjusting device (5), wherein the adjusting device (5) comprises a movable wheel group (51) and a traction structure (52), wherein the movable wheel group (51) is in contact with the ground and is lifted up and down by the action of the terrain, and the traction structure (52) connects the cutting platform (2) and the movable wheel group (51) and drives the cutting platform (2) to perform a lifting movement opposite to that of the movable wheel group (51); The movable wheel group (51) further comprises a connecting shaft (511), a swinging rod (512) and a wheel hub (513); the wheel hub (513) is provided with a central rotating shaft (514); one end of the swinging rod (512) is rotatably connected to the connecting shaft (511); the other end of the swinging rod (512) is rotatably connected to the central rotating shaft (514), so that the wheel hub (513) can swing up and down around the connecting shaft (511) according to the change of the terrain when rolling on the ground; the traction structure (52) comprises a first support (521), a first pulley (522) and a first traction rope (523); the first pulley (522) comprises a first shell (5221); the first shell (5221) is rotatably connected to the first wheel body (5222); , the first support (521) is connected to the frame (1), the first shell (5221) is fixedly connected to the first support (521), one end of the first traction rope (523) is connected to the wheel hub (513), and the other end of the first traction rope (523) is connected to the header (2) after changing direction through the first wheel body (5222); The traction structure (52) further comprises a second support (524), a second pulley (525) and a second traction rope (526); the second pulley (525) comprises a second shell (5251), the second shell (5251) is rotatably connected to a second wheel body (5252), the second support (524) is fixed on the frame (1), the first traction rope (523) passes through the first wheel body (5222), the second wheel body (5252) and the second support (524) in sequence and is fixedly connected, the second pulley (525) is suspended above the cutting platform (2) through the contact between the second wheel body (5252) and the first traction rope (523), one end of the second traction rope (526) is connected to the second wheel body (5252), and the other end of the second traction rope (526) is connected to the cutting platform (2); The cutting table (2) comprises a table body (21) and a sliding assembly (22), wherein the table body (21) is used to carry a cutting disc (3), and the sliding assemblies (22) are two in number and are respectively arranged on both sides of the table body (21); the sliding assembly (22) comprises a sliding rod (221) and a sliding block (222), wherein the sliding rod (221) is fixedly connected to the frame (1), and the sliding block (222) is fixedly connected to the table body (21), and the sliding rod (221) is inserted into the sliding block (222) and is slidably connected thereto, so that the table body (21) is slidably connected to the frame (1).

2. The ramie harvesting and collecting mechanism according to claim 1, characterized in that: The sliding assembly (22) further comprises a first limit plate and a second limit plate, wherein the first limit plate is arranged at the upper end of the sliding rod (221), and the second limit plate is arranged at the lower end of the sliding rod (221); the first spring (225) and the second spring (226) are respectively sleeved on the upper and lower ends of the sliding rod (221); one end of the first spring (225) is connected to the first limit plate, and the other end of the first spring (225) is connected to the sliding block (222); one end of the second spring (226) is connected to the second limit plate of the shaft (511), and the other end of the second spring (226) is connected to the sliding block (222).

3. The ramie harvesting and collecting mechanism according to claim 2, characterized in that: The movable wheel group (51) further comprises a connecting rod (515) and a return spring (516), wherein the connecting rod (515) is connected to the frame (1), one end of the return spring (516) is connected to the connecting rod (515), and the other end of the return spring (516) is connected to the swing rod (512).

4. The ramie harvesting and collecting mechanism according to claim 3, characterized in that: The frame (1) is provided with a slide groove (527), and the slide groove (527) is arranged vertically on the ground. The second wheel body (5252) of the second pulley (525) is provided with a sliding member (528), and the sliding member (528) is slidably connected to the slide groove (527), so that the second pulley (525) is slidably connected to the frame (1).

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