A stalk cutting and laying device and harvester for assisting crawler walking in wet and soft fields

Abstract

The present invention provides a stalk cutting and laying device and a harvester for assisting crawler walking in soft and wet fields, including a harvesting platform; the harvesting platform includes a right straw divider, a left straw divider, a first cutting knife, a second cutting knife, a digging arm, a spring-tooth straw puller, a harvesting platform conveying auger, a harvesting platform finger-shifting mechanism, a hydraulic rod, a straw puller, a harvesting platform shell, a straw outlet and a conveyor belt; the rice is divided into upper and lower parts by the harvesting platform, the upper part is thrown backwards by the harvesting platform finger-shifting mechanism to the conveying device, and the lower part of the rice straw is conveyed to the front of the crawler through the conveyor belt of the harvesting platform. The present invention harvests the rice by dividing it into upper and lower parts, only sends the upper part into the threshing device, and lays the lower part of the rice straw flat in front of the harvester crawler, so that the crawler is not easy to sink and the soil on the upper part of the rice straw is reduced, thereby improving the threshing, separation and cleaning efficiency. The present invention has a simple overall structure and is easy to install and switch, and can be quickly improved and applied on the existing full-feed rice combine harvester harvester.

Description

Technical Field

[0001] The invention belongs to the technical field of harvesters, and in particular relates to a stalk cutting and laying device and a harvester for assisting crawler walking in soft and wet fields. Background Art

[0002] In recent years, although the degree of mechanization of rice production in my country has been increasing, the existing harvesters are difficult to adapt to harvesting in wet and rotten fields, because wet and rotten fields are prone to soft mud, and the harvester may get stuck in the mud during driving, causing the track to slip or get stuck in the mud, and even damage the field. This will not only affect the normal operation of the machine, but may also cause additional damage to the farmland. Wet and rotten fields will increase the resistance of the harvester, slowing its travel speed.

[0003] In recent years, with the continuous development of agricultural mechanization, Chinese invention patent CN114946294A discloses an intelligent compound seeder suitable for rice stubble wet and rotten field operations, including a tractor and a seeder. The seeder is installed on the tractor, and the tractor is equipped with two buoyancy tires. The tractor is equipped with two mud-breaking wheels. The buoyancy tires connect the four tires into a whole, increase the contact area between the tractor and the wet and rotten field, disperse the pressure of each tire, prevent the tire from sinking into the mud, and thus prevent the entire intelligent compound seeder from sinking into the mud.

[0004] Chinese utility model patent CN209489125U discloses an intelligent rotary tillage fertilization and seeding machine for wet and rotten fields, comprising a frame and a gear box, a rotary tillage mechanism, a fertilization and seeding mechanism and a pressing roller installed on the frame; in wet and rotten fields, it has the characteristics of strong adaptability to soil types, no congestion of the pressing roller, high working efficiency, low energy consumption, intelligent control of fertilizer and seeding amounts, and automatic control of fertilization and seeding time.

[0005] Chinese invention patent CN111295995A discloses a fully automatic wheat seeder for wet and rotten fields based on a sensor device, comprising a main body, which is composed of a single-group sowing mechanism. A soil hardness detector is arranged on the sensor device, and the soil hardness detector in the sensor device is used to control the lifting and lowering of the electric push rods in the front legs and the rear legs. The height of the front legs and the rear legs is adjusted according to the hardness of the soil in the field, so that the sowing depth of the seeder can be kept within a reasonable range.

[0006] The above-mentioned existing technologies can solve the problems encountered by agricultural machinery in wet and rotten fields under specific conditions to a certain extent, but the structure is complex and cannot be replaced. In addition, when the rice combine harvester operates in the wet and rotten field, there is still the problem that the track is easy to sink. Summary of the invention

[0007] In view of the above technical problems, the present invention provides a stalk cutting and laying device and a harvester that assist crawler walking in wet and soft fields, so that the crawler of the harvester is not easy to sink when operating in a wet and rotten field.

[0008] The present invention harvests rice by dividing it into upper and lower parts, only sending the upper part into a threshing device, and spreading the lower rice straw in front of the harvester crawler, so that the crawler is not easy to sink and the mud on the upper part of the rice straw is reduced, thereby improving the threshing, separation and cleaning efficiency of the rice combine harvester.

[0009] The present invention has a simple overall structure and is convenient to install and replace, and can be quickly modified and applied on the cutting platform of an existing full-feed rice combine harvester.

[0010] Note that the description of these objectives does not prevent the existence of other objectives. One embodiment of the present invention does not need to achieve all of the above objectives. Objectives other than the above objectives can be extracted from the description of the specification, drawings, and claims.

[0011] The present invention achieves the above technical objectives through the following technical means.

[0012] A stalk cutting and laying device for assisting crawler walking in wet and soft fields, comprising a harvesting platform;

[0013] The harvesting platform includes a right crop divider, a left crop divider, a first cutting knife, a second cutting knife, a digging arm, a spring-toothed crop puller, a harvesting platform conveying auger, a harvesting platform finger-shifting mechanism, a hydraulic rod, a crop puller, a harvesting platform shell, a straw outlet and a conveyor belt; the right crop divider is installed at the right front of the harvesting platform shell, and the left crop divider is installed at the left front of the harvesting platform shell; the second cutting knife is installed directly in front of the harvesting platform shell, and the first cutting knife is installed in front of and above the second cutting knife, and is used to divide the rice into upper and lower parts; the digging arm is installed above the harvesting platform shell, and is used to gather the rice in front of the first cutting knife; the spring-toothed crop puller is installed above the first cutting knife, and is used to send the upper part of the rice cut by the first cutting knife to the harvesting platform conveying auger; The harvesting platform conveying auger is installed behind the spring-tooth rice plow and is used to push the cut upper part of the rice to the harvesting platform finger-pushing mechanism; the harvesting platform finger-pushing mechanism is installed on the harvesting platform conveying auger and is used to throw the cut rice backwards; the hydraulic rod is installed on the harvesting platform shell and is used to drive the plowing arm to reciprocate up and down; the rice plow is installed above the second cutting knife and is used to send the lower part of the rice cut by the second cutting knife to the conveyor belt; the conveyor belt is installed behind the second cutting knife and is used to send the cut lower part of the rice to the straw outlet; the straw outlet is installed on the harvesting platform shell and is located directly behind the conveyor belt, and is used to send the cut lower part of the rice straw to the front of the two crawlers of the crawler self-propelled chassis.

[0014] In the above solution, the conveyor belt includes a first conveyor belt and a second conveyor belt;

[0015] The first conveyor belt and the second conveyor belt are installed behind the second cutter and are used to deliver the cut lower part of the rice to the straw outlet; there are two straw outlets, which are installed on the outer shell of the header and are respectively located directly behind the two first conveyor belts; the reed plow delivers the cut lower part of the rice to the first conveyor belt and the second conveyor belt;

[0016] The movement direction of the first conveyor belt is parallel to and opposite to the forward direction of the crawler self-propelled chassis; the movement direction of the second conveyor belt is perpendicular to the movement direction of the first conveyor belt. The lower part of the rice straw sent to the second conveyor belt is sent along the conveyor belt to the first conveyor belts on both sides, and then sent along the straw outlet to the front of the two crawler belts of the crawler self-propelled chassis.

[0017] Furthermore, the first conveyor belt and the second conveyor belt both include a conveyor belt body; an anti-slip strip is provided on the conveyor belt body to prevent slipping when conveying the lower part of rice straw.

[0018] Furthermore, the first conveyor belt and the second conveyor belt are made of polyurethane material, and the conveyor belt driving roller is installed with a driving motor through a coupling. The driving motor drives the driving roller to rotate, and then drives the conveyor belt for transportation.

[0019] In the above scheme, the cutting knife transmission mechanism includes a fixed bracket, a first rotating shaft, a cutting knife frame, a cutting knife frame fixing block, a transmission gear, a rotating bearing, an optical axis fixing bracket, a rotating sleeve and a second rotating shaft;

[0020] The fixed bracket is connected to the cutting platform housing; the transmission gear is connected to the first rotating shaft; the first rotating shaft is connected to the rotating bearing; one end of the second rotating shaft is connected to the rotating bearing, and the other end is connected to the optical axis fixed bracket, the optical axis fixed bracket is provided with a rotating shaft sleeve, the rotating shaft sleeve is connected to the cutting knife frame fixed block, the cutting knife frame fixed block is connected to the cutting knife frame, and the first cutting knife is installed on the cutting knife frame.

[0021] The fixed bracket is connected to the cutting platform housing; the transmission gear is connected to the first rotating shaft; the first rotating shaft is connected to the rotating bearing; the rotating bearing drives the second rotating shaft to rotate, thereby driving the optical axis fixed bracket and the rotating sleeve to rotate, thereby transmitting power to the first cutting knife installed on the cutting knife frame.

[0022] In the above scheme, the fixed blades of the first cutting knife and the second cutting knife are long blades, which are used to support the fallen rice and prevent the cut rice from falling.

[0023] In the above scheme, the lever arm includes a cantilever, a lever, a slide rail, a sliding shaft, a push rod, a connecting rod, a rotating shaft, and a gear;

[0024] The two cantilevers are symmetrically arranged on both sides of the rotating shaft, the two ends of the rotating shaft are respectively connected to one end of the cantilever, and the other end of the cantilever is provided with a sliding rail, and the two ends of the sliding shaft are respectively slidably connected to the sliding rail; the pick rod is installed on the sliding shaft; one end of the push rod is connected to the sliding shaft, and the other end is connected to one end of the connecting rod, and the other end of the connecting rod is provided with a gear, and the gear is connected to the rotating shaft through a belt drive; the cantilever is connected to a hydraulic rod, and the hydraulic rod is used to drive the cantilever to reciprocate up and down.

[0025] Furthermore, the lever arm is driven by the hydraulic rod to move up and down; thereby driving the rotating shaft on the lever arm to rotate, and the rotating shaft rotates the gear through the belt transmission; the gear drives the connecting rod to rotate, and the connecting rod drives the sliding shaft to move along the slide rail; thereby, when the hydraulic rod drives the lever arm to move downward, the rotating shaft rotates clockwise, driving the gear to rotate clockwise, driving the connecting rod to rotate clockwise, driving the sliding shaft to move along the upper right side of the slide rail, and the lever reaches the top of the lever arm to gather the rice in front of the first cutting knife; thereby, when the hydraulic rod drives the lever arm to move upward, the rotating shaft rotates counterclockwise, driving the gear to rotate counterclockwise, driving the connecting rod to rotate counterclockwise, driving the sliding shaft to move along the lower left side of the slide rail, and the lever reaches the bottom end of the lever arm, thereby avoiding the phenomenon of lifting the rice when the lever arm is lifted.

[0026] The above scheme also includes a cutter transmission mechanism; the cutter transmission mechanism is installed on the cutting platform shell and connected to the first cutter, and is used to transmit power to the first cutter.

[0027] In the above scheme, the lifting rod of the lifting rod arm and the spring teeth of the spring-tooth rice plow are both flexible components, which reduce grain loss and avoid rigid parts from having a large impact force on the rice stems and rice ears, which will increase the occurrence of grain loss.

[0028] A harvester comprises the stalk cutting and laying device for assisting crawler walking in soft and wet fields.

[0029] In the above scheme, the harvester also includes a conveying device, a threshing device, a separation and cleaning device, a grain box, a cab and a crawler self-propelled chassis.

[0030] Furthermore, the cab is located at the upper right position of the crawler self-propelled chassis; the grain tank is located at the upper left position of the crawler self-propelled chassis; the separation and cleaning device is located directly above the grain tank; the threshing device is located directly above the separation and cleaning device; the conveying device is located directly in front of the threshing device; and the harvesting platform of the stalk cutting and laying device that assists the crawler walking in the soft and wet field is located directly in front of the conveying device.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The harvesting platform of the crawler-walked stalk cutting and laying device for assisting wet and soft fields of the present invention can harvest rice by dividing it into upper and lower parts and only sending the upper part into the threshing device, thereby effectively reducing the mixed soil and straw therein, thereby improving the threshing, separation and cleaning efficiency of the rice combine harvester.

[0033] 2. The harvesting platform of the stalk cutting and laying device for assisting crawler walking in wet and soft fields of the present invention spreads the excess lower part of the rice stalks in front of the crawler, thereby making it difficult for the crawler of the rice harvester to sink in the wet and rotten field.

[0034] 3. The harvesting platform of the stalk cutting and laying device for assisting wet and soft field crawler walking of the present invention has a simple overall structure and is convenient to install and replace, and can be quickly retrofitted and applied on the harvesting platform of the existing full-feed rice combine harvester.

[0035] Note that the description of these effects does not prevent the existence of other effects. One embodiment of the present invention does not necessarily have all of the above effects. Effects other than the above can be clearly seen and extracted from the description of the specification, drawings, claims, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a front schematic diagram of a harvesting platform structure according to an embodiment of the present invention;

[0037] Figure 2 It is a rear schematic diagram of a harvesting platform structure according to an embodiment of the present invention;

[0038] Figure 3 It is a rear schematic diagram of the bottom structure of a harvesting platform according to an embodiment of the present invention;

[0039] Figure 4 This is a schematic diagram of the structure of an anti-slip conveyor belt according to one embodiment of the present invention;

[0040] Figure 5 It is a schematic side view of a harvesting platform structure according to an embodiment of the present invention;

[0041] Figure 6 It is a schematic structural diagram of a cutting knife transmission mechanism according to an embodiment of the present invention;

[0042] Figure 7 This is a schematic structural diagram of a lever arm mechanism according to an embodiment of the present invention;

[0043] Figure 8 The present invention is a schematic diagram of the structure of a harvester according to an embodiment of the present invention.

[0044] The following are the descriptions of the reference numerals:

[0045] 1- harvesting platform, 101- right crop divider, 102- left crop divider, 103- first cutting knife, 104- second cutting knife, 105- lever arm, 105-1- cantilever, 105-2- lever, 105-3- slide rail, 105-4- sliding shaft, 105-5- push rod, 105-6- connecting rod, 105-7- rotating shaft, 105-8- gear, 106- spring-toothed crop digger, 107- harvesting platform conveying auger, 108- harvesting platform finger mechanism, 109- cutting knife transmission mechanism, 109-1- fixed bracket, 109-2- first rotating shaft, 109-3- cutting knife frame , 109-4-cutting knife frame fixing block, 109-5-transmission gear, 109-6-rotating bearing, 109-7-optical axis fixing bracket, 109-8-rotating sleeve, 109-9-second rotating shaft, 1010-hydraulic rod, 1011-grain plow, 1012-cutting table shell, 1013-straw outlet, 1014-first conveyor belt, 1014-1-conveyor belt body, 1014-2-anti-slip strip, 1015-second conveyor belt; 2-conveying device; 3-threshing device; 4-separating and cleaning device; 5-grain tank; 6-cab; 7-crawler self-propelled chassis. DETAILED DESCRIPTION

[0046] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "front", "back", "left", "right", "up", "down", "axial", "radial", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] Example 1

[0051] Figure 1 and 2 The figure shows a preferred embodiment of the stem cutting and laying device for assisting the crawler walking of soft and wet fields, which comprises a harvesting platform 1; the harvesting platform 1 comprises a right straw divider 101, a left straw divider 102, a first cutting knife 103, a second cutting knife 104, a digging arm 105, a spring-tooth straw plow 106, a harvesting platform conveying auger 107, a harvesting platform finger shifting mechanism 108, a hydraulic rod 1010, a straw plow 1011, a harvesting platform housing 1012, a straw outlet 1013 and a conveyor belt.

[0052] The right rice divider 101 is installed at the right front of the header housing 1012, and the left rice divider 102 is installed at the left front of the header housing 1012. When the harvester is in operation, the right rice divider 101 and the left rice divider 102 are used to divide the rice into a ready-to-cut area and a waiting-to-cut area; the second cutting knife 104 is installed in front of the header housing 1012, and the first cutting knife 103 is installed above and in front of the second cutting knife 104, and is used to divide the rice entering the ready-to-cut area into two parts, the upper and lower parts. The lever arm 105 is installed above the header housing 1012 and is used to gather the rice in front of the first cutter 103; the spring-toothed rice-pulling device 106 is installed above the first cutter 103 and is used to deliver the upper part of the rice cut by the first cutter 103 to the header conveying auger 107; the header conveying auger 107 is installed behind the spring-toothed rice-pulling device 106 and is used to push the cut upper part of the rice to the header finger-pulling mechanism 108; the header finger-pulling mechanism 1 08 is installed on the header conveying auger 107, and is used to throw the continuously cut rice backwards to the conveying device 2 at a certain speed; the hydraulic rod 1010 is installed on the left and right sides above the header shell 1012, and is used to drive the digging arm 105 to reciprocate up and down; the straw plow 1011 is installed above the second cutting knife 104, and is used to send the lower part of the rice cut by the second cutting knife 104 to the conveyor belt; the conveyor belt includes a first conveyor belt 1014 and a second conveyor belt 1015; the first conveyor belt 1014 and the second conveyor belt 1015 are installed behind the second cutting knife 104, and are used to send the cut lower part of the rice to the straw outlet 1013; there are two straw outlets 1013, which are installed on the header shell 1012 and are located directly behind the two first conveyor belts 1014, and are used to send the cut lower part of the rice straw to the front of the two crawlers of the crawler self-propelled chassis 7.

[0053] like Figure 3 As shown, the rice plow 1011 sends the lower part of the rice cut off by the second cutting knife 104 to the first conveyor belt 1014 and the second conveyor belt 1015.

[0054] Preferably, the movement direction of the first conveyor belt 1014 is parallel to and opposite to the forward direction of the crawler self-propelled chassis 7, and the lower part of the rice straw delivered to the first conveyor belt 1014 is directly delivered along the straw outlet 1013 to the front of the two crawler tracks of the crawler self-propelled chassis 7; the movement direction of the second conveyor belt 1015 is perpendicular to the movement direction of the first conveyor belt 1014, and the lower part of the rice straw delivered to the second conveyor belt 1015 is delivered along the conveyor belt to the first conveyor belts 1014 on both sides, and then delivered along the straw outlet 1013 to the front of the two crawler tracks of the crawler self-propelled chassis 7.

[0055] like Figure 4As shown, the first conveyor belt 1014 and the second conveyor belt 1015 both include a conveyor belt body 1014-1; an anti-slip strip 1014-2 is provided on the conveyor belt body 1014-1 to prevent slipping when conveying the lower part of rice straw.

[0056] Preferably, the anti-slip conveyor belt 1014 and the second conveyor belt 1015 are made of polyurethane material; the conveyor belt driving roller is installed with a transmission motor through a coupling, and the transmission motor drives the transmission roller to rotate, and then drives the conveyor belt for transportation.

[0057] like Figure 5 As shown, the lever arm 105 and the spring-toothed rice plow 106 deliver the upper portion of the rice cut off by the first cutting knife 103 to the harvester conveying auger 107; the harvester conveying auger 107 pushes the cut upper portion of the rice to the harvester finger mechanism 108; the harvester finger mechanism 108 throws the upper half of the rice backwards to the conveying device 2, and then transports it to the threshing device 3 and the separation and cleaning device 4 of the harvester.

[0058] Preferably, the length of the fixed blades of the first cutting knife 103 and the second cutting knife 104 is lengthened to support the fallen rice and prevent the cut rice from falling.

[0059] Preferably, the tiller 1011 is an octagonal tiller.

[0060] like Figure 6 As shown, preferably, the cutter transmission mechanism 109 includes a fixed bracket 109-1, a first rotating shaft 109-2, a cutter frame 109-3, a cutter frame fixing block 109-4, a transmission gear 109-5, a rotating bearing 109-6, an optical axis fixing bracket 109-7, a rotating sleeve 109-8 and a second rotating shaft 109-9.

[0061] The fixed bracket 109-1 is connected to the cutting platform housing 1012; the transmission gear 109-5 is connected to the first rotating shaft 109-2; the first rotating shaft 109-2 is connected to the rotating bearing 109-6; one end of the second rotating shaft 109-9 is connected to the rotating bearing 109-6, and the other end is connected to the optical axis fixed bracket 109-7, the optical axis fixed bracket 109-7 is provided with a rotating shaft sleeve 109-8, the rotating shaft sleeve 109-8 is connected to the cutting knife frame fixed block 109-4, the cutting knife frame fixed block 109-4 is connected to the cutting knife frame 109-3, and the first cutting knife 103 is installed on the cutting knife frame 109-3.

[0062] The fixed bracket 109-1 is used to fix the cutter transmission mechanism 109 on the cutting table housing 1012; the transmission gear 109-5 is connected to the first rotating shaft 109-2, and is used to drive the first rotating shaft 109-2 to rotate; the first rotating shaft 109-2 is connected to the rotating bearing 109-6, and is used to drive the rotating bearing 109-6 to rotate; the rotating bearing 109-6 drives the second rotating shaft 109-9 to rotate, thereby driving the optical axis fixed bracket 109-7 and the rotating sleeve 109-8 to rotate, thereby transmitting power to the first cutter 103 installed on the cutter frame 109-3.

[0063] like Figure 7 As shown, the lever arm 105 includes a cantilever 105-1, a lever 105-2, a slide rail 105-3, a sliding shaft 105-4, a push rod 105-5, a connecting rod 105-6, a rotating shaft 105-7, and a gear 105-8.

[0064] The two cantilevers 105-1 are symmetrically arranged on both sides of the rotating shaft 105-7, and the two ends of the rotating shaft 105-7 are respectively connected to one end of the cantilever 105-1, and the other end of the cantilever 105-1 is respectively provided with a slide rail 105-3, and the two ends of the sliding shaft 105-4 are respectively slidably connected to the slide rail 105-3; the pick rod 105-2 is installed on the sliding shaft 105-4; one end of the push rod 105-5 is connected to the sliding shaft 105-4, and the other end is connected to one end of the connecting rod 105-6, and the other end of the connecting rod 105-6 is provided with a gear 105-8, and the gear 105-8 is connected to the rotating shaft 105-7 through a belt drive; the cantilever 105-1 is connected to the hydraulic rod 1010, and the hydraulic rod 1010 is used to drive the cantilever 105-1 to reciprocate up and down.

[0065] The lever arm 105 is driven by the hydraulic rod 1010 to move up and down; thereby driving the rotating shaft 105-7 on the lever arm 105 to rotate, and the rotating shaft 105-7 drives the gear 105-8 to rotate through the belt drive; the gear 105-8 drives the connecting rod 105-6 to rotate, so that the connecting rod 105-6 drives the sliding shaft 105-4 to move along the slide rail 105-3; thereby, when the hydraulic rod 1010 drives the lever arm 105 to move downward, the rotating shaft 105-7 rotates clockwise, driving the gear 105-8 to rotate clockwise, and driving the connecting rod 105-6 to rotate clockwise The hydraulic rod 1010 drives the lever arm 105 to move upward, and the rotating shaft 105-7 rotates counterclockwise, driving the gear 105-8 to rotate counterclockwise, driving the connecting rod 105-6 to rotate counterclockwise, driving the sliding shaft to move along the lower left of the slide rail 105-3, and the lever 105-2 reaches the bottom end of the lever arm 105, so as to avoid the phenomenon that the lever arm 105 lifts up the rice.

[0066] Preferably, it also includes a cutter transmission mechanism 109 ; the cutter transmission mechanism 109 is installed on the right and rear of the cutting platform housing 1012 and is connected to the first cutter 103 for transmitting power to the first cutter 103 .

[0067] Preferably, the lever 105 - 2 of the lever arm 105 and the spring teeth of the spring-tooth rice plow 106 are both flexible parts, which are used to prevent rigid parts from exerting too much impact force on rice stalks and rice ears, thereby increasing the occurrence of rice grain loss.

[0068] When the machine of the present invention enters the field for operation, as the machine moves forward, the right straw divider 101 and the left straw divider 102 of the harvesting platform 1 divide the rice into the ready-to-cut area and the waiting-to-cut area. The rice in the ready-to-cut area is divided into upper and lower parts by the harvesting platform 1, wherein the upper part is continuously sent by the harvesting platform conveying auger 107 and the harvesting platform finger mechanism 108 to throw the rice backward at a certain speed to the conveying device 2. The lower part of the rice straw divided by the harvesting platform 1 is conveyed to the front of the two crawlers of the crawler self-propelled chassis through the conveyor belt of the harvesting platform.

[0069] The present invention harvests rice by dividing it into two parts, the upper part and the lower part, and only feeds the upper part into the threshing device, and spreads the lower part of the rice straw in front of the harvester crawler, so that the crawler is not easy to sink and reduces the mud on the upper part of the rice straw, which not only reduces the problem of the crawler sinking of the rice harvester in the wet and rotten field, but also improves the threshing, separation and cleaning efficiency of the rice harvester. The present invention has a simple overall structure and is easy to install and switch, and can be quickly improved and applied on the existing full-feed rice harvester header.

[0070] Example 2

[0071] like Figure 8 As shown, a harvester includes a conveying device 2, a threshing device 3, a separation and cleaning device 4, a grain box 5, a cab 6 and a crawler self-propelled chassis 7, as well as the stalk cutting and laying device for assisting crawler walking in wet and soft fields as described in Example 1, and thus has the beneficial effects of Example 1.

[0072] In a specific embodiment of the present invention, the cab 6 is located at the upper right position of the crawler self-propelled chassis 7; the grain tank 5 is located at the upper left position of the crawler self-propelled chassis 7; the separation and cleaning device 4 is located directly above the grain tank 5; the threshing device 3 is located directly above the separation and cleaning device 4; the conveying device 2 is located directly in front of the threshing device 3; and the harvesting table 1 of the stem cutting and laying device that assists the crawler walking of the soft field is located directly in front of the conveying device 2.

[0073] The right and left rice dividers 101 and 102 of the harvesting platform 1 divide the rice into a ready-to-harvest area and a waiting-to-harvest area. The rice in the ready-to-harvest area is divided into an upper and lower part by the harvesting platform 1. The upper part is continuously fed with rice by the harvesting platform conveying auger 107 and the harvesting platform finger mechanism 108, and is thrown backward to the conveying device 2 at a certain speed. The conveying device 2 continuously feeds the crops to the threshing device 3 and the separation and cleaning device 4 through the grabbing action of the conveying trough rake teeth. The crops are continuously fed to the threshing device 3 and the separation and cleaning device 4 under the high-speed impact of the spike teeth of the threshing device 3. The lower grains and part of the short stalks are separated and then pass through the concave plate to fall onto the separation and cleaning device 4; the grains contained in the mixed matter in the separation and cleaning device 4 are constantly shaken and pushed by the vibrating screen, and the short stalks and light and small debris on the screen surface are thrown out of the machine from the tail of the screen due to the obstruction of the screen surface and the action of the airflow of the cleaning fan; the screened grains enter the grain box 5; the lower part of the rice straw cut by the harvesting platform is transmitted to the front of the two tracks of the crawler self-propelled chassis 7 through the conveyor belt of the harvesting platform through the straw outlet 1013.

[0074] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0075] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention. They are not intended to limit the scope of protection of the present invention. All equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A stalk cutting and laying device for assisting crawler walking in wet and soft fields, characterized in that: Include header (1); The harvesting platform (1) comprises a right crop divider (101), a left crop divider (102), a first cutting knife (103), a second cutting knife (104), a digging arm (105), a spring-toothed crop diverter (106), a harvesting platform conveying auger (107), a harvesting platform finger-shifting mechanism (108), a hydraulic rod (1010), a crop diverter (1011), a harvesting platform housing (1012), a straw outlet (1013) and a conveyor belt; the right crop divider (101) is installed at the right front of the harvesting platform housing (1012), and the left crop diverter (102) is installed at the right front of the harvesting platform housing (1012). The rice divider (102) is mounted on the left front of the header housing (1012); the second cutting knife (104) is mounted directly in front of the header housing (1012); the first cutting knife (103) is mounted above the second cutting knife (104) and is used to divide the rice into upper and lower parts; the pulling arm (105) is mounted above the header housing (1012) and is used to gather the rice in front of the first cutting knife (103); the spring-toothed rice puller (106) is mounted above the first cutting knife (103) and is used to pull the rice into the upper and lower parts. The upper part of the rice cut by a cutting knife (103) is sent to a cutting platform conveying auger (107); the cutting platform conveying auger (107) is installed behind the spring-tooth rice plow (106) and is used to push the cut upper part of the rice to the cutting platform finger mechanism (108); the cutting platform finger mechanism (108) is installed on the cutting platform conveying auger (107) and is used to throw the cut rice backwards; the hydraulic rod (1010) is installed on the cutting platform housing (1012) and is used to drive the plowing arm (105) to move up and down reciprocatingly. The rice plow (1011) is installed above the second cutting knife (104) and is used to deliver the lower part of the rice cut by the second cutting knife (104) to the conveyor belt; the conveyor belt is installed behind the second cutting knife (104) and is used to deliver the cut lower part of the rice to the straw outlet (1013); the straw outlet (1013) is installed on the cutting platform shell (1012) and is located directly behind the conveyor belt, and is used to deliver the cut lower part of the rice straw to the front of the two crawler tracks of the crawler self-propelled chassis (7); The conveyor belt comprises a first conveyor belt (1014) and a second conveyor belt (1015); The first conveyor belt (1014) and the second conveyor belt (1015) are installed behind the second cutter (104) and are used to deliver the cut lower portion of the rice to the straw outlet (1013); there are two straw outlets (1013), which are installed on the header housing (1012) and are respectively located directly behind the two first conveyor belts (1014); The rice-pulling device (1011) delivers the lower portion of the rice cut by the second cutting knife (104) to the first conveyor belt (1014) and the second conveyor belt (1015). The first conveyor belt (1014) moves in a direction parallel to and opposite to the forward direction of the crawler self-propelled chassis (7); the second conveyor belt (1015) moves in a direction perpendicular to the forward direction of the first conveyor belt (1014); the lower part of the rice straw delivered to the second conveyor belt (1015) is delivered along the conveyor belt to the first conveyor belts (1014) on both sides, and then delivered along the straw outlet (1013) to the front of the two crawler belts of the crawler self-propelled chassis (7); The lifting lever arm (105) comprises a cantilever (105-1), a lifting lever (105-2), a slide rail (105-3), a sliding shaft (105-4), a push rod (105-5), a connecting rod (105-6), a rotating shaft (105-7), and a gear (105-8); Two cantilevers (105-1) are symmetrically arranged on both sides of the rotating shaft (105-7); the two ends of the rotating shaft (105-7) are respectively connected to one end of the cantilever (105-1); the other end of the cantilever (105-1) is respectively provided with a slide rail (105-3); the two ends of the sliding shaft (105-4) are respectively slidably connected to the slide rail (105-3); the pick rod (105-2) is mounted on the sliding shaft (105-4); the push rod One end of (105-5) is connected to the sliding shaft (105-4), and the other end is connected to one end of the connecting rod (105-6); the other end of the connecting rod (105-6) is provided with a gear (105-8), and the gear (105-8) is connected to the rotating shaft (105-7) through a belt drive; the cantilever (105-1) is connected to the hydraulic rod (1010), and the hydraulic rod (1010) is used to drive the cantilever (105-1) to reciprocate up and down; It also includes a cutting knife transmission mechanism (109); the cutting knife transmission mechanism (109) is installed on the cutting platform housing (1012) and connected to the first cutting knife (103), and is used to transmit power to the first cutting knife (103).

2. The stalk cutting and laying device for assisting crawler walking in wet and soft fields according to claim 1, characterized in that: The first conveyor belt (1014) and the second conveyor belt (1015) both comprise a conveyor belt body (1014-1); an anti-slip strip (1014-2) is provided on the conveyor belt body (1014-1).

3. The stalk cutting and laying device for assisting crawler walking in wet and soft fields according to claim 1, characterized in that: The cutter transmission mechanism (109) comprises a fixed bracket (109-1), a first rotating shaft (109-2), a cutter frame (109-3), a cutter frame fixing block (109-4), a transmission gear (109-5), a rotating bearing (109-6), an optical axis fixing bracket (109-7), a rotating shaft sleeve (109-8) and a second rotating shaft (109-9); The fixed support (109-1) is connected to the cutting platform housing (1012); the transmission gear (109-5) is connected to the first rotating shaft (109-2); the first rotating shaft (109-2) is connected to the rotating bearing (109-6); one end of the second rotating shaft (109-9) is connected to the rotating bearing (109-6), and the other end is connected to the optical axis fixed support (109-7); the optical axis fixed support (109-7) is provided with a rotating shaft sleeve (109-8); the rotating shaft sleeve (109-8) is connected to the cutting knife frame fixed block (109-4); the cutting knife frame fixed block (109-4) is connected to the cutting knife frame (109-3); and the first cutting knife (103) is installed on the cutting knife frame (109-3).

4. The stalk cutting and laying device for assisting crawler walking in wet and soft fields according to claim 1, characterized in that: The fixed blades of the first cutting knife (103) and the second cutting knife (104) are long blades.

5. The stalk cutting and laying device for assisting crawler walking in wet and soft fields according to claim 1, characterized in that: The lever arm (105) is driven by the hydraulic rod (1010) to move up and down; thereby driving the rotating shaft (105-7) on the lever arm (105) to rotate, and the rotating shaft (105-7) causes the gear (105-8) to rotate through the belt drive; the gear (105-8) drives the connecting rod (105-6) to rotate, so that the connecting rod (105-6) drives the sliding shaft (105-4) to move along the slide rail (105-3); thereby, when the hydraulic rod (1010) drives the lever arm (105) to move downward, the rotating shaft (105-7) rotates clockwise, driving the gear (105-8) to rotate clockwise, driving The connecting rod (105-6) rotates clockwise, driving the sliding shaft (105-4) to move along the upper right side of the slide rail (105-3), and the pick rod (105-2) reaches the top of the pick rod arm (105), gathering the rice in front of the first cutting knife (103); thus, when the hydraulic rod (1010) drives the pick rod arm (105) to move upward, the rotating shaft (105-7) rotates counterclockwise, driving the gear (105-8) to rotate counterclockwise, driving the connecting rod (105-6) to rotate counterclockwise, driving the sliding shaft to move along the lower left side of the slide rail (105-3), and the pick rod (105-2) reaches the bottom end of the pick rod arm (105).

6. The stalk cutting and laying device for assisting crawler walking in wet and soft fields according to claim 1, characterized in that: The digging rod (105-2) of the digging rod arm (105) and the spring teeth of the spring-toothed reed digger (106) are both flexible components.

7. A harvester, characterized in that: It comprises the stalk cutting and laying device for assisting crawler walking in soft and wet fields as described in any one of claims 1-6.

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