Conveying structure for corn harvester

Abstract

The invention discloses a conveying structure for a corn harvester, and relates to the technical field of corn harvesters, the conveying structure comprises a conveying mechanism and a fixing support installed on the periphery of the top of the conveying mechanism, an adjusting mechanism is arranged on the outer side of the conveying mechanism, a fixed pulley is arranged on one side of the top of the adjusting mechanism, and the conveying mechanism comprises a conveying support. A transmission motor is fixedly installed on one side of the front face of the conveying support, a first chain wheel transmission assembly is fixedly connected to the output end of the transmission motor, conveying connecting shafts are symmetrically connected to one side of the first chain wheel transmission assembly, and conveying chain wheels are fixedly installed on the two sides of the two conveying connecting shafts correspondingly; the characteristic that the adjusting driving gear, the meshing rack and the rotating driven gear are in meshing connection is utilized, the rotating driven gear can be driven to rotate, accordingly, the inclination angle between the limiting baffles is changed, the size of a gap between the limiting baffles can be adjusted, and therefore the corn screening function is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of corn harvesters, in particular to a transmission structure for corn harvesters. Background Art

[0002] A corn harvester is an agricultural machine that mechanically completes multiple operations of picking corn ears, stacking corn, and returning the stalks to the field at one time when the corn is ripe. The process flow is as follows: a corn harvester is used to pick corn ears while the corn is growing (called standing stalk picking). The ears are broken by the action of the ear picking rollers and the ear picking plates. Due to the height difference between the inner and outer picking rollers, the ears fall into the ear box. The conveying device of the corn harvester refers to the device that conveys the ears as they fall into the ear box.

[0003] Announcement No. CN218318858U discloses a conveying device of a self-propelled corn harvester. By setting a buffer plate, a first rotating shaft, a first torsion spring and a movable plate, during the conveying process of corn, one end of the corn will fall downward onto the buffer plate, so that the inclined buffer plate can perform a certain buffering treatment on the corn, and when the corn rolls downward onto the movable plate, the movable plate will flip downward through the first rotating shaft and compress the first torsion spring, so that the impact of the corn falling downward is buffered and absorbed by the movable plate, and after the corn falls, the first torsion spring will restore its elasticity and drive the movable plate to reset, so that the buffer plate and the movable plate cooperate to buffer and protect the corn, avoiding corn from falling. The rice is damaged during the collection process of falling. By setting a cylinder, a piston rod, a gantry, a mounting frame, a second rotating shaft, a second torsion spring and a push plate, the cylinder can be started by a controller during the transmission of corn, so that the cylinder pushes the piston rod to extend, and the piston rod will drive the mounting frame and the push plate to move downward, so that the push plate can be a certain distance away from the conveyor belt and contact the corn, so that the push plate can rotate under the action of the second rotating shaft and compress the second torsion spring during the process of pushing the corn, so that the pushed plate can push and separate the transmitted corn, so as to avoid a lot of corn being accumulated in one position and affecting the transmission of the conveyor belt. However, the patent still has the following problems in actual use: Although the conveying device of the self-propelled corn harvester can realize the function of conveying corn, it can only realize horizontal conveyance of corn and cannot convey corn at different heights, which affects the collection of corn. At the same time, the height of the limiting pier is limited, which can easily cause the corn to roll and slide during the conveyance of corn. At the same time, it does not have the function of screening during the conveyance of corn and cannot screen corns of different sizes. It is necessary to carry out corn selection at a later stage, which increases the labor intensity of workers and is not conducive to saving worker costs.

[0004] Therefore, a transmission structure for a corn harvester is proposed to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a conveying structure for a corn harvester to solve the problem that the conveying device of the self-propelled corn harvester proposed in the above background technology can realize the conveying function of corn, but can only realize horizontal conveying of corn, and cannot convey corn at different heights, thereby affecting the collection of corn. At the same time, the height of the limiting pier is limited, which can easily cause the corn to roll and slide during the conveying of corn. At the same time, it does not have the screening function during the conveying process of corn, and cannot screen corn of different sizes. It is necessary to carry out corn selection at a later stage, which increases the labor intensity of workers and is not conducive to saving worker costs.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: A conveying mechanism for a corn harvester, comprising a conveying mechanism and a fixing bracket installed around the top of the conveying mechanism; An adjusting mechanism is arranged on the outer side of the transmission mechanism, and a fixed pulley is arranged on one side of the top of the adjusting mechanism; Also includes: The transmission mechanism comprises a transmission bracket, a transmission motor is fixedly mounted on one side of the front of the transmission bracket, and an output end of the transmission motor is fixedly connected to a first sprocket transmission assembly; Wherein, one side of the first sprocket transmission assembly is symmetrically connected with a transmission connecting shaft, and both sides of the two transmission connecting shafts are fixedly installed with transmission sprockets; The outer side of the transmission sprocket is connected to the transmission chain, and a plurality of rotating brackets are fixedly installed on the outer side of the transmission chain; One side of the rotating bracket is rotatably connected to a rotating slave gear, a rotating connecting rod is fixedly connected between the two rotating slave gears, limit baffles are arranged on both sides of the rotating connecting rod, and the two limit baffles are inclined. The bottom of the rotating slave gear is engaged with a locking block, and the top of the locking block is provided with a locking groove.

[0007] Preferably, a first limiting sliding groove is symmetrically provided on both sides of the locking block, a connecting sliding rod is symmetrically installed on the inner side of the bottom of the rotating bracket, a connecting sliding sleeve is slidably connected to the outer side of the connecting sliding rod, a return spring is fixedly connected to one side of the connecting sliding sleeve, a sliding triangle block is fixedly installed on the outer side of the connecting sliding sleeve, and a sliding connecting plate is fixedly connected to one side of the sliding triangle block.

[0008] Preferably, a limiting slider is fixedly installed on one side of the end of the sliding connecting plate, the limiting slider is slidably connected to the locking block through a first limiting sliding groove, the locking block is slidably connected to the rotating bracket, the top of the sliding triangle block is slidably connected with a sliding baffle, and the fixed bracket is fixedly installed around the top of the conveying bracket.

[0009] Preferably, a lifting cylinder is fixedly installed on the inner side of the top of the fixed bracket, and the bottom of the lifting cylinder is fixedly connected to a limiting slide rail, a second limiting slide groove is provided inside the limiting slide rail, and the second limiting slide groove is internally slidably connected with an engaging rack, a first translation slide groove is provided on one side of the limiting slide rail, and a plurality of translation sliders are internally slidably connected with the first translation slide groove, and the translation slider is fixedly connected to the sliding baffle, and an adjusting motor is fixedly installed on one side of the conveying bracket, and an adjusting driving gear is fixedly connected to the output end of the adjusting motor, and the adjusting driving gear is horizontally arranged with the rotating slave gear.

[0010] Preferably, the adjustment mechanism includes a fixed base, an installation groove is opened inside the fixed base, second translation grooves are opened on the front and rear sides of the fixed base, fixed support blocks are symmetrically installed on one side of the fixed base, first lifting brackets are fixedly installed on the tops of two fixed support blocks, and first lifting top plates are fixedly installed on the tops of the two first lifting brackets.

[0011] Preferably, a first lifting motor is fixedly installed on one side of the first lifting top plate, and the output end of the first lifting motor is fixedly connected to the first lifting rotating rod, and first bevel gear transmission assemblies are symmetrically installed on both ends of the first lifting rotating rod, and a first lifting threaded rod is fixedly installed on the bottom of the first bevel gear transmission assembly, and the outer side of the first lifting threaded rod is threadedly connected to the first lifting threaded sleeve, and one side of the first lifting threaded sleeve is rotatably connected to a rotating connecting shaft, and the rotating connecting shaft is rotatably connected to the conveying bracket.

[0012] Preferably, a motor cover is fixedly installed on one side of the fixed base close to the fixed support block, the output end of the motor cover is fixedly connected to a translation motor, the output end of the translation motor is fixedly connected to a second sprocket transmission assembly, one side of the second sprocket transmission assembly is symmetrically connected to a translation threaded rod, the outer sides of the two translation threaded rods are threadedly connected to translation threaded sleeves, the outer side of the translation thread sleeve is fixedly installed with a moving support block, the top of the moving support block is fixedly installed with a second lifting bracket, the top of the second lifting bracket is fixedly installed with a second lifting top plate, and one side of the second lifting top plate is fixedly installed with a second lifting motor.

[0013] Preferably, the output end of the second lifting motor is fixedly connected to the second lifting rotating rod, the two ends of the second lifting rotating rod are symmetrically installed with second bevel gear transmission assemblies, the bottom of the second bevel gear transmission assembly is fixedly connected to the second lifting threaded rod, the outer sides of the two second lifting threaded rods are threadedly connected with the second lifting threaded sleeves, a lifting baffle is fixedly installed between the two second lifting threaded sleeves, the top of the lifting baffle is symmetrically installed with a fixed block, the top of the fixed block is fixedly installed with a connecting wire rope, the fixed pulley is symmetrically on the top of the second lifting top plate, the fixed pulley is slidably connected to the connecting wire rope, and the connecting wire rope is fixedly connected to the conveying bracket.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the transmission structure for a corn harvester can drive the rotating slave gear to rotate by adjusting the meshing connection between the active gear, the meshing rack and the rotating slave gear, thereby changing the inclination angle between the limit baffles, and adjusting the size of the gap between the limit baffles, thereby realizing the corn screening function. During the horizontal adjustment process of the second lifting bracket, the height of the lifting baffle can be adjusted, thereby limiting the height of the transmitted corn, avoiding the phenomenon of corn accumulation, which is not conducive to the screening and paving of the corn. The specific contents are as follows: 1. By setting the transmission mechanism, not only can the transmission motor be used to drive the first sprocket transmission assembly and the transmission connecting shaft to rotate, so that the transmission connecting shaft drives the transmission sprocket to rotate, and the characteristics of the transmission connection between the transmission sprocket and the transmission chain are used to drive the rotating bracket and the rotating slave gear on the outside of the transmission chain to move, and at the same time drive the rotating connecting rod and the limit baffle to move. Since the limit baffles are inclined, the corn transmission function can be realized by using the limit baffles connected end to end. At the same time, since the limit baffles are inclined, the effect of limit blocking can be achieved to avoid the corn sliding off when the transmission bracket is inclined, which is not conducive to the transmission of corn. The limit slide rail and the meshing rack are driven to descend by the lifting cylinder. When the meshing rack is meshed with the rotating slave gear and the adjusting active gear, the translation slider on one side of the limit slide rail drives the sliding baffle to descend. The characteristics of the sliding baffle and the sliding triangle block are used to make the sliding triangle block drive the connected sliding sleeve to squeeze the reset spring while driving the sliding connecting plate and the limit slide block to slide. The characteristic of the sliding connection of the position slide groove makes the engaging block descend. When the engaging groove is separated from the rotating slave gear, the adjusting motor is started to drive the adjusting driving gear to rotate. By utilizing the characteristics of the meshing connection between the adjusting driving gear, the meshing rack and the rotating slave gear, the rotating slave gear can be driven to rotate, thereby changing the inclination angle between the limiting baffles, and adjusting the gap size between the limiting baffles, thereby realizing the corn screening function. When the corn is transmitted, the small corn will fall to the bottom through the gap between the limiting baffles, and the large corn can be transmitted to the end of the transmission bracket for collection. By repeating the transmission for many times and adjusting the gap size between the limiting baffles, the corn screening function can be performed. At the same time, when collecting the corn, the collection frame can be placed at the bottom of the transmission bracket. When the corn is transmitted to the end of the collection frame, starting the adjusting motor can rotate the limiting baffle to a vertical direction, so that the corn on the limiting baffle falls into the collection frame at the bottom, thereby realizing the flat collection of the corn and improving the efficiency of corn collection. 2. By setting the adjusting mechanism, not only can the first lifting motor be used to drive the first lifting rotating rod and the first bevel gear transmission assembly to rotate, so that the first bevel gear transmission assembly drives the first lifting threaded rod to rotate, and at the same time the first lifting threaded sleeve drives the rotating connecting shaft to move up and down, so as to adjust the height of one side of the conveying bracket, and at the same time the second sprocket transmission assembly is driven to rotate by the translation motor, so that the translation threaded rod drives the translation threaded sleeve and the movable support block to move, so as to adjust the position of the second lifting bracket, start the second lifting motor to drive the second lifting rotating rod and the second bevel gear transmission assembly to rotate, so that the second bevel gear transmission assembly drives the second lifting threaded rod to rotate, and at the same time the second lifting threaded sleeve drives the lifting baffle to move up and down, and the connecting wire rope at the top of the fixed block is used to bypass the fixed pulley to lift and move the other end of the conveying bracket, so as to realize the height adjustment of the conveying bracket and the angle adjustment of the conveying bracket. In the horizontal adjustment process of the second lifting bracket, the height of the lifting baffle can be adjusted, so as to limit the height of the transmitted corn, avoid the accumulation of corn, which is not conducive to the screening and paving of corn. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the transmission structure cross section in the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the transmission sprocket and the transmission chain in the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the rotating connecting rod and the limit baffle in the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating slave gear in the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the sliding triangle block and the sliding connecting plate in the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the meshing rack in the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism in the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the first lifting bracket in the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the second lifting top plate in the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the transmission structure in the inclined state in the present invention; Fig.12 For the present invention Figure 2 Schematic diagram of the enlarged structure of area A in the middle.

[0016] In the figure: 1, transmission mechanism; 101, transmission bracket; 102, transmission motor; 103, first sprocket transmission assembly; 104, transmission connecting shaft; 105, transmission sprocket; 106, transmission chain; 107, rotating bracket; 108, rotating slave gear; 109, rotating connecting rod; 110, limit baffle; 111, clamping block; 112, clamping groove; 113, first limit sliding groove; 114, connecting sliding rod; 115, connecting sliding Moving sleeve; 116, reset spring; 117, sliding triangle block; 118, sliding connecting plate; 119, limit slider; 120, sliding baffle; 121, fixed bracket; 122, lifting cylinder; 123, limit slide rail; 124, second limit slide groove; 125, meshing rack; 126, first translation slide groove; 127, translation slider; 128, adjustment motor; 129, adjustment driving gear; 2, adjustment mechanism; 201, fixed bottom 202, mounting groove; 203, second translation slide groove; 204, fixed support block; 205, first lifting bracket; 206, first lifting top plate; 207, first lifting motor; 208, first lifting rotating rod; 209, first bevel gear transmission assembly; 210, first lifting threaded rod; 211, first lifting threaded sleeve; 212, rotating connecting shaft; 213, motor cover; 214, translation motor; 215, second sprocket transmission assembly; 216, translation threaded rod; 217, translation threaded sleeve; 218, mobile support block; 219, second lifting bracket; 220, second lifting top plate; 221, second lifting motor; 222, second lifting rotating rod; 223, second bevel gear transmission assembly; 224, second lifting threaded rod; 225, second lifting threaded sleeve; 226, lifting baffle; 227, fixed block; 228, connecting wire rope; 229, fixed pulley. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described 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.

[0018] like Figure 1-Figure 12As shown, the present invention provides a technical solution: a transmission structure for a corn harvester, comprising a transmission mechanism 1, and a fixed bracket 121 installed around the top of the transmission mechanism 1, an adjustment mechanism 2 is arranged on the outside of the transmission mechanism 1, and a fixed pulley 229 is arranged on one side of the top of the adjustment mechanism 2, the transmission mechanism 1 comprises a transmission bracket 101, a transmission motor 102 is fixedly installed on one side of the front of the transmission bracket 101, and the output end of the transmission motor 102 is fixedly connected to a first sprocket transmission assembly 103, wherein one side of the first sprocket transmission assembly 103 is symmetrically connected to a transmission connecting shaft 104, and both sides of the two transmission connecting shafts 104 are fixedly installed with transmission sprockets 105, wherein the outer side of the transmission sprocket 105 is transmission-connected to a transmission chain 106, and a plurality of rotating brackets 107 are fixedly installed on the outer side of the transmission chain 106, and one side of the rotating bracket 107 is rotationally connected to a rotating slave gear 108, a rotating connecting rod 109 is fixedly connected between the two rotating slave gears 108, and limit baffles 110 are arranged on both sides of the rotating connecting rod 109. The transmission motor 102 is used to drive the first sprocket transmission assembly 103 and the transmission connecting shaft 104 to rotate, so that the transmission connecting shaft 104 drives the transmission sprocket 105 to rotate, and the transmission connection between the transmission sprocket 105 and the transmission chain 106 is used to drive the rotating bracket 107 and the rotating slave gear 108 on the outside of the transmission chain 106 to move, and at the same time drive the rotating connecting rod 109 and the limit baffle 110 to move. Since the limit baffles 110 are inclined, the corn transmission function can be realized by using the limit baffles 110 connected end to end. At the same time, since the limit baffles 110 are inclined, they can play a limit blocking effect to avoid the corn sliding when the transmission bracket 101 is inclined, which is not conducive to the transmission of the corn.

[0019] Two limit baffles 110 are arranged obliquely, and a locking block 111 is engaged with the bottom of the rotating slave gear 108, and a locking groove 112 is provided on the top of the locking block 111, and first limit sliding grooves 113 are symmetrically provided on both sides of the locking block 111, and a connecting sliding rod 114 is symmetrically installed on the inner side of the bottom of the rotating bracket 107, and a connecting sliding sleeve 115 is slidably connected to the outer side of the connecting sliding rod 114, and a return spring 116 is fixedly connected to one side of the connecting sliding sleeve 115, and a sliding triangular block 117 is fixedly installed on the outer side of the connecting sliding sleeve 115, and a sliding connecting plate 118 is fixedly connected to one side of the sliding triangular block 117, and a limiting slider 119 is fixedly installed on one side of the end of the sliding connecting plate 118, and the limiting slide rail 123 and the meshing rack 125 are driven to descend by the lifting cylinder 122, and when the meshing rack 125 is meshed and connected with the rotating slave gear 108 and the adjusting driving gear 129, the limit The translation slider 127 on one side of the positioning slide rail 123 drives the sliding baffle 120 to descend, and the sliding baffle 120 is slidably connected with the sliding triangle block 117, so that the sliding triangle block 117 drives the connecting sliding sleeve 115 to squeeze the reset spring 116, and drives the sliding connecting plate 118 and the limiting slider 119 to slide, and utilizes the characteristic of the sliding connection between the limiting slider 119 and the first limiting slide groove 113 to make the engaging block 111 descend, when the engaging groove 112 is separated from the rotating slave gear 108, the adjusting motor 128 is started to drive the adjusting driving gear 129 to rotate, and utilizes the characteristic of the meshing connection between the adjusting driving gear 129, the meshing rack 125 and the rotating slave gear 108 to drive the rotating slave gear 108 to rotate, thereby changing the inclination angle between the limiting baffles 110, and adjusting the gap size between the limiting baffles 110, thereby realizing the corn screening function.

[0020] The limiting slider 119 is slidably connected with the engaging block 111 through the first limiting slide groove 113, the engaging block 111 is slidably connected with the rotating bracket 107, the top of the sliding triangle block 117 is slidably connected with a sliding baffle 120, the fixed bracket 121 is fixedly installed around the top of the conveying bracket 101, the top inner side of the fixed bracket 121 is fixedly installed with a lifting cylinder 122, the bottom of the lifting cylinder 122 is fixedly connected with a limiting slide rail 123, the interior of the limiting slide rail 123 is provided with a second limiting slide groove 124, the interior of the second limiting slide groove 124 is slidably connected with an engaging rack 125, a side of the limiting slide rail 123 is provided with a first translation slide groove 126, the interior of the first translation slide groove 126 is slidably connected with a plurality of translation sliders 127, the translation slider 127 is fixedly connected with the sliding baffle 120, and one side of the conveying bracket 101 is fixedly installed An adjusting motor 128 is installed, and an adjusting driving gear 129 is fixedly connected to the output end of the adjusting motor 128. The adjusting driving gear 129 is horizontally arranged with the rotating slave gear 108. When the corn is transmitted, the small corn will fall to the bottom through the gap between the limit baffles 110, and the larger corn can be transmitted to the end of the transmission bracket 101 for collection. By repeating the transmission many times and adjusting the size of the gap between the limit baffles 110, the corn screening function can be performed. At the same time, when collecting the corn, the collection frame can be placed at the bottom of the transmission bracket 101. When the corn is transmitted to the end of the collection frame, starting the adjusting motor 128 can rotate the limit baffle 110 to a vertical direction, so that the corn on the limit baffle 110 falls into the collection frame at the bottom, thereby realizing the flat collection of the corn and improving the efficiency of corn collection.

[0021] The adjustment mechanism 2 includes a fixed base 201, a mounting groove 202 is provided inside the fixed base 201, a second translation slide groove 203 is provided on the front and rear sides of the fixed base 201, a fixed support block 204 is symmetrically installed on one side of the fixed base 201, a first lifting bracket 205 is fixedly installed on the top of the two fixed support blocks 204, a first lifting top plate 206 is fixedly installed on the top of the two first lifting brackets 205, a first lifting motor 207 is fixedly installed on one side of the first lifting top plate 206, an output end of the first lifting motor 207 is fixedly connected to a first lifting rotating rod 208, and both ends of the first lifting rotating rod 208 are symmetrical A first bevel gear transmission assembly 209 is installed, and a first lifting threaded rod 210 is fixedly installed at the bottom of the first bevel gear transmission assembly 209. The outer side of the first lifting threaded rod 210 is threadedly connected to a first lifting threaded sleeve 211, and one side of the first lifting threaded sleeve 211 is rotatably connected to a rotating connecting shaft 212. The first lifting motor 207 is used to drive the first lifting rotating rod 208 and the first bevel gear transmission assembly 209 to rotate, so that the first bevel gear transmission assembly 209 drives the first lifting threaded rod 210 to rotate, and at the same time, the first lifting threaded sleeve 211 drives the rotating connecting shaft 212 to move up and down, thereby being able to adjust the height of one side of the conveying bracket 101.

[0022] The rotating connecting shaft 212 is rotatably connected to the conveying bracket 101, a motor cover 213 is fixedly installed on one side of the fixed base 201 close to the fixed support block 204, the output end of the motor cover 213 is fixedly connected to the translation motor 214, the output end of the translation motor 214 is fixedly connected to the second sprocket transmission assembly 215, one side of the second sprocket transmission assembly 215 is symmetrically connected to the translation threaded rod 216, the outer sides of the two translation threaded rods 216 are both threadedly connected to the translation thread sleeve 217, the outer side of the translation thread sleeve 217 is fixedly installed with a moving support block 218, and the top of the moving support block 218 is fixedly installed with a second lifting bracket 219. A second lifting top plate 220 is fixedly installed on the top of the second lifting bracket 219, a second lifting motor 221 is fixedly installed on one side of the second lifting top plate 220, a second lifting rotating rod 222 is fixedly connected to the output end of the second lifting motor 221, second bevel gear transmission assemblies 223 are symmetrically installed at both ends of the second lifting rotating rod 222, a second lifting threaded rod 224 is fixedly connected to the bottom of the second bevel gear transmission assembly 223, the outer sides of the two second lifting threaded rods 224 are both threadedly connected to the second lifting threaded sleeves 225, a lifting baffle 226 is fixedly installed between the two second lifting threaded sleeves 225, and the lifting baffle 226 A fixed block 227 is symmetrically installed on the top, and a connecting wire rope 228 is fixedly installed on the top of the fixed block 227. The fixed pulley 229 is symmetrically on the top of the second lifting top plate 220. The fixed pulley 229 is slidably connected with the connecting wire rope 228. The connecting wire rope 228 is fixedly connected to the transmission bracket 101. The second sprocket transmission assembly 215 is driven to rotate by the translation motor 214, so that the translation threaded rod 216 drives the translation threaded sleeve 217 and the moving support block 218 to move, and the position of the second lifting bracket 219 can be adjusted. The second lifting motor 221 is started to drive the second lifting rotation rod 222 and the second bevel gear transmission assembly 223 to rotate. , so that the second bevel gear transmission assembly 223 drives the second lifting threaded rod 224 to rotate, and at the same time the second lifting threaded sleeve 225 drives the lifting baffle 226 to move up and down, and the connecting wire rope 228 at the top of the fixed block 227 bypasses the fixed pulley 229 to lift and move the other end of the conveying bracket 101, which can realize the height adjustment of the conveying bracket 101 and the angle adjustment of the conveying bracket 101. During the horizontal adjustment process of the second lifting bracket 219, the height of the lifting baffle 226 can be adjusted, thereby limiting the height of the transmitted corn to avoid the accumulation of corn, which is not conducive to the screening and flattening of corn.

[0023] Working principle: Before using this kind of corn harvester transmission structure, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Fig.11As shown, first, the transmission motor 102 is used to drive the first sprocket transmission assembly 103 and the transmission connecting shaft 104 to rotate, so that the transmission connecting shaft 104 drives the transmission sprocket 105 to rotate, and the transmission connection between the transmission sprocket 105 and the transmission chain 106 is used to drive the rotating bracket 107 and the rotating slave gear 108 on the outside of the transmission chain 106 to move, and at the same time drive the rotating connecting rod 109 and the limit baffle 110 to move. Since the limit baffles 110 are inclined, the corn transmission function can be realized by using the limit baffles 110 connected end to end. At the same time, since the limit baffle 110 is inclined, it can play a limiting blocking effect to avoid the corn from sliding off when the transmission bracket 101 is inclined, which is not conducive to the transmission of the corn. The limit slide rail 123 and the meshing rack 125 are driven to descend by the lifting cylinder 122. When the meshing rack 125 is aligned with the rotating slave gear 108 and the adjusting driving gear 12 When meshing and connecting, the translation slider 127 on one side of the limiting slide rail 123 drives the sliding baffle 120 to descend. By utilizing the characteristics of the sliding connection between the sliding baffle 120 and the sliding triangle block 117, the sliding triangle block 117 drives the connecting sliding sleeve 115 to squeeze the reset spring 116 while driving the sliding connecting plate 118 and the limiting slider 119 to slide. By utilizing the characteristics of the sliding connection between the limiting slider 119 and the first limiting slide groove 113, the engaging block 111 is lowered. When the engaging groove 112 is separated from the rotating slave gear 108, the adjusting motor 128 is started to drive the adjusting driving gear 129 to rotate. By utilizing the characteristics of the meshing connection between the adjusting driving gear 129, the meshing rack 125 and the rotating slave gear 108, the rotating slave gear 108 can be driven to rotate, thereby changing the inclination angle between the limiting baffles 110, and adjusting the gap size between the limiting baffles 110, thereby realizing the screening function of corn.

[0024] Secondly, when the corn is transmitted, the small corn will fall to the bottom through the gap between the limit baffles 110, while the larger corn can be conveyed to the end of the conveying bracket 101 for collection. The corn screening function can be performed by repeating the transmission and adjusting the size of the gap between the limit baffles 110. At the same time, when collecting the corn, the collection frame can be placed at the bottom of the conveying bracket 101. When the corn is conveyed to the end of the collection frame, starting the adjustment motor 128 can rotate the limit baffle 110 to a vertical direction, so that the corn on the limit baffle 110 falls into the collection frame at the bottom, thereby realizing the flat collection of the corn and improving the efficiency of corn collection.

[0025] Finally, the first lifting motor 207 is used to drive the first lifting rotating rod 208 and the first bevel gear transmission assembly 209 to rotate, so that the first bevel gear transmission assembly 209 drives the first lifting threaded rod 210 to rotate, and at the same time, the first lifting threaded sleeve 211 drives the rotating connecting shaft 212 to move up and down, so as to adjust the height of one side of the conveying bracket 101. At the same time, the second sprocket transmission assembly 215 is driven to rotate by the translation motor 214, so that the translation threaded rod 216 drives the translation threaded sleeve 217 and the moving support block 218 to move, so as to adjust the position of the second lifting bracket 219, and the second lifting motor 221 is started to drive the second lifting rotating rod 222 and the second bevel gear The transmission assembly 223 rotates, so that the second bevel gear transmission assembly 223 drives the second lifting threaded rod 224 to rotate, and at the same time the second lifting threaded sleeve 225 drives the lifting baffle 226 to move up and down, and the connecting wire rope 228 at the top of the fixed block 227 bypasses the fixed pulley 229 to lift and move the other end of the conveying bracket 101, which can realize both the height adjustment of the conveying bracket 101 and the angle adjustment of the conveying bracket 101. During the horizontal adjustment process of the second lifting bracket 219, the height of the lifting baffle 226 can be adjusted, thereby limiting the height of the transmitted corn to avoid the accumulation of corn, which is not conducive to the screening and flattening of corn.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A conveying structure for a corn harvester, comprising a conveying mechanism (1), and a fixing bracket (121) installed around the top of the conveying mechanism (1); An adjusting mechanism (2) is arranged on the outer side of the conveying mechanism (1), and a fixed pulley (229) is arranged on one side of the top of the adjusting mechanism (2); It is characterized in that Also includes: The conveying mechanism (1) comprises a conveying bracket (101), a transmission motor (102) being fixedly mounted on a front side of the conveying bracket (101), and a first sprocket transmission assembly (103) being fixedly connected to an output end of the transmission motor (102); Wherein, one side of the first sprocket transmission assembly (103) is symmetrically connected to a transmission connection shaft (104), and both sides of the two transmission connection shafts (104) are fixedly mounted with transmission sprockets (105); The outer side of the transmission sprocket (105) is transmission-connected to a transmission chain (106), and a plurality of rotating brackets (107) are fixedly mounted on the outer side of the transmission chain (106); A rotating slave gear (108) is rotatably connected to one side of the rotating bracket (107); a rotating connecting rod (109) is fixedly connected between the two rotating slave gears (108); limit baffles (110) are arranged on both sides of the rotating connecting rod (109); the two limit baffles (110) are arranged obliquely; a locking block (111) is locked and connected to the bottom of the rotating slave gear (108); and a locking groove (112) is provided on the top of the locking block (111).

2. A transmission structure for a corn harvester according to claim 1, characterized in that: The first limiting sliding grooves (113) are symmetrically provided on both sides of the engaging block (111); a connecting sliding rod (114) is symmetrically installed on the inner side of the bottom of the rotating bracket (107); a connecting sliding sleeve (115) is slidably connected to the outer side of the connecting sliding rod (114); a return spring (116) is fixedly connected to one side of the connecting sliding sleeve (115); a sliding triangle block (117) is fixedly installed on the outer side of the connecting sliding sleeve (115); and a sliding connecting plate (118) is fixedly connected to one side of the sliding triangle block (117).

3. A transmission structure for a corn harvester according to claim 2, characterized in that: A limiting slider (119) is fixedly mounted on one side of the end of the sliding connection plate (118); the limiting slider (119) is slidably connected to a locking block (111) via a first limiting sliding groove (113); the locking block (111) is slidably connected to a rotating bracket (107); a sliding baffle (120) is slidably connected to the top of the sliding triangle block (117); and the fixed bracket (121) is fixedly mounted around the top of the conveying bracket (101).

4. A transmission structure for a corn harvester according to claim 6, characterized in that: A lifting cylinder (122) is fixedly mounted on the inner side of the top of the fixed bracket (121); a limiting slide rail (123) is fixedly connected to the bottom of the lifting cylinder (122); a second limiting slide groove (124) is provided inside the limiting slide rail (123); a meshing rack (125) is slidably connected inside the second limiting slide groove (124); a first translation slide groove (126) is provided on one side of the limiting slide rail (123); a plurality of translation sliders (127) are slidably connected inside the first translation slide groove (126); the translation sliders (127) are fixedly connected to the sliding baffle (120); an adjusting motor (128) is fixedly mounted on one side of the conveying bracket (101); an adjusting driving gear (129) is fixedly connected to the output end of the adjusting motor (128); the adjusting driving gear (129) is horizontally arranged with the rotating slave gear (108).

5. The transmission structure for a corn harvester according to claim 1, characterized in that: The adjustment mechanism (2) comprises a fixed base (201), a mounting groove (202) is provided inside the fixed base (201), second translational sliding grooves (203) are provided on the front and rear sides of the fixed base (201), a fixed support block (204) is symmetrically installed on one side of the fixed base (201), a first lifting bracket (205) is fixedly installed on the top of the two fixed support blocks (204), and a first lifting top plate (206) is fixedly installed on the top of the two first lifting brackets (205).

6. The transmission structure for a corn harvester according to claim 5, characterized in that: A first lifting motor (207) is fixedly mounted on one side of the first lifting top plate (206); an output end of the first lifting motor (207) is fixedly connected to a first lifting rotating rod (208); first bevel gear transmission assemblies (209) are symmetrically mounted at both ends of the first lifting rotating rod (208); a first lifting threaded rod (210) is fixedly mounted on the bottom of the first bevel gear transmission assembly (209); an outer side of the first lifting threaded rod (210) is threadedly connected to a first lifting threaded sleeve (211); one side of the first lifting threaded sleeve (211) is rotatably connected to a rotating connecting shaft (212); and the rotating connecting shaft (212) is rotatably connected to the conveying bracket (101).

7. The transmission structure for a corn harvester according to claim 6, characterized in that: A motor cover (213) is fixedly mounted on one side of the fixed base (201) close to the fixed support block (204); an output end of the motor cover (213) is fixedly connected to a translation motor (214); an output end of the translation motor (214) is fixedly connected to a second sprocket transmission assembly (215); one side of the second sprocket transmission assembly (215) is symmetrically connected to translation threaded rods (216); the outer sides of the two translation threaded rods (216) are both threadedly connected to translation threaded sleeves (217); a mobile support block (218) is fixedly mounted on the outer side of the translation threaded sleeves (217); a second lifting bracket (219) is fixedly mounted on the top of the mobile support block (218); a second lifting top plate (220) is fixedly mounted on the top of the second lifting bracket (219); and a second lifting motor (221) is fixedly mounted on one side of the second lifting top plate (220).

8. The transmission structure for a corn harvester according to claim 7, characterized in that: The output end of the second lifting motor (221) is fixedly connected to a second lifting rotating rod (222), and second bevel gear transmission assemblies (223) are symmetrically installed at both ends of the second lifting rotating rod (222). The bottom of the second bevel gear transmission assembly (223) is fixedly connected to a second lifting threaded rod (224), and the outer sides of the two second lifting threaded rods (224) are both threadedly connected to second lifting threaded sleeves (225). A lifting baffle (226) is fixedly installed between the two second lifting threaded sleeves (225). A fixed block (227) is symmetrically installed on the top of the lifting baffle (226), and a connecting steel wire rope (228) is fixedly installed on the top of the fixed block (227). The fixed pulley (229) is symmetrically installed on the top of the second lifting top plate (220), and the fixed pulley (229) is slidably connected to the connecting steel wire rope (228), and the connecting steel wire rope (228) is fixedly connected to the conveying bracket (101).

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