Millet ear picking and harvesting device

Abstract

The invention relates to the technical field of millet harvesting devices, in particular to a millet ear picking and harvesting device which comprises a base. A first reciprocating cutter is installed at the end, away from the gearbox, of the bottom of the base, a second reciprocating cutter is arranged above the middle of the base, and an ear picking mechanism is further fixedly installed on the top face of the base. A spherical bevel gear speed changing box is installed in the base in an embedded mode, the spherical bevel gear speed changing box is in transmission connection with the speed changing box, and the spherical bevel gear speed changing box is in transmission connection with a first transmission assembly. A supporting base is installed on the top face of the base, and a second transmission assembly is installed between the top of the supporting base and the top face of the base. According to the device, disturbance to millet ears is reduced according to the working principle of chain tooth clamping, the posture of the ears is adjusted by changing the loading mode and the gravity direction, and the effect of low damage after ear and stem separation is guaranteed through the limiting effect on stems and the cutting effect of the reciprocating cutter.

Description

Technical Field

[0001] The invention relates to the technical field of millet harvesting devices, in particular to a millet ear picking and harvesting device. Background Art

[0002] As an ancient food crop, millet plays an important role in global food security and agricultural diversity. Especially in arid and barren areas, the cultivation of millet is of great significance for ensuring food supply and maintaining ecological balance.

[0003] At present, there are two main ways to mechanized harvesting of millet, namely, segmented harvesting and combined harvesting. For segmented harvesting, the millet is first cut down by a reaper or manually, and then threshed by a thresher after being picked up. Although this harvesting method has a low millet loss rate, it has the problem of low harvesting efficiency and is mainly suitable for harvesting in small areas such as hilly and mountainous areas.

[0004] Combined harvesting uses millet combine harvesters for harvesting. Millet combine harvesters adopt a full-feed harvesting method, integrating harvesting and threshing in one, with high harvesting efficiency. However, the millet loss rate is relatively high due to the mismatch of the harvesting table and the high straw content in the threshing and cleaning system. Summary of the invention

[0005] The object of the present invention is to provide a millet ear picking and harvesting device to solve the problems raised in the above-mentioned background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions: A millet ear picking and harvesting device comprises a base, a gearbox is fixedly mounted on one end of the top surface of the base, an engine is fixedly mounted above the gearbox, an output shaft end of the engine is transmission-connected to an input shaft of the gearbox via a pulley structure, and a U-shaped avoidance groove is provided at the middle position of one end of the base away from the gearbox; A reciprocating cutter 1 is installed at the bottom of the base at one end away from the gearbox, and a reciprocating cutter 2 is arranged above the middle position of the base, and an ear picking mechanism is also fixedly installed on the top surface of the base; A spherical bevel gear gearbox is embedded in the base, the input shaft of the spherical bevel gear gearbox is transmission-connected to the output shaft of the gearbox, the output end of the spherical bevel gear gearbox is transmission-connected to a transmission assembly 1 vertically arranged with the base, and the transmission assembly 1 is transmission-connected to the reciprocating cutter 2 and the reciprocating cutter 1 at the same time; A support seat is fixedly installed on the top surface of the base at a position close to the gearbox, a storage box located above the engine is fixedly installed on the top of the support seat at one side close to the gearbox, a transmission component 2 is installed between the other side of the support seat and the top surface of the base, and the transmission component 2 is transmission-connected to the transmission component 1 and the ear-picking mechanism; A walking mechanism is also installed on the base.

[0007] Furthermore, the transmission component 1 includes a rotating column that can be rotated vertically and penetrates the base, the rotating column is transmission-connected to the spherical bevel gear gearbox, a crank 2 is fixedly installed on the top of the rotating column, a crank 1 is fixedly installed on the bottom of the rotating column, and a gear 2 located above the base is fixedly installed on the periphery of the rotating column near the bottom.

[0008] Furthermore, the reciprocating cutter 1 includes a limiting slide 1 fixedly mounted on one side of the bottom surface of the base and away from one end of the gearbox, and a limiting slide 2 fixedly mounted on the bottom surface of the base and away from one end of the gearbox; The length direction of the limiting slide seat 1 is parallel to the length direction of the base, and a driving block is installed on the inner side of the limiting slide seat 1. The end of the driving block away from the gearbox is an inclined surface, and a mounting groove is provided on the inclined surface. The top and bottom surfaces of the mounting groove are both provided with limiting grooves parallel to the limiting grooves. A column is slidably installed in the mounting groove, and the top and bottom ends of the column are respectively slidably clamped in the limiting grooves at corresponding positions, and a driving rod is fixedly connected to the middle position of the outer periphery of the column; A boss is fixedly mounted on one end of the driving block close to the gearbox, and an end of the boss away from the driving block is rotatably connected to a push-pull rod via a pin shaft, and an end of the push-pull rod away from the boss is rotatably connected to the crank 1; A movable knife 1 is installed in the limiting sliding seat 2 in a limiting sliding manner, and a fixed knife 1 is fixedly installed to be relatively slidable with the movable knife 1 in the length direction. An end of the movable knife 1 close to the limiting sliding seat 1 is fixedly connected to an end of the driving rod away from the column.

[0009] Furthermore, the reciprocating cutter 2 includes a limiting slide 3 fixedly installed at the bottom of the ear picking mechanism, a movable knife 2 is limitedly slidably installed in the limiting slide 3, and a fixed knife 2 is fixedly installed to be relatively slidable with the movable knife 2 in the length direction, one end of the movable knife 2 is rotatably connected to a connecting rod through a pin shaft, and the end of the connecting rod away from the movable knife 2 is rotatably connected to the crank 2.

[0010] Furthermore, the ear picking mechanism includes two support platforms obliquely arranged above the base, the two support platforms are flush and spaced apart, and the end of the support platform away from the gearbox is the lower end; Sprockets are rotatably mounted on both ends of the top surface of the support platform through a support shaft, and a square-tooth ear-picking chain is mounted between the two sprockets; A plurality of tensioning sprockets meshing with the square-tooth ear picking chain are installed in an array along the length direction of the top surface of the support platform at a position close to the inner side; A supporting wheel is rotatably mounted on the support platform at one end away from the gearbox through a bearing seat, the supporting wheel is located between the square-tooth ear-picking chain and the support platform, and the supporting wheel and the square-tooth ear-picking chain are in rolling contact; A support rod is fixedly installed between the bottom surface of the support platform at a position close to the middle and the top surface of the base.

[0011] Furthermore, the transmission assembly 2 includes two square bevel gearboxes fixedly mounted on the top of the support seat, the two square bevel gearboxes are respectively located below the ends of the two support platforms, an output shaft axis of the square bevel gearbox is coaxial with the sprocket at the corresponding position, and the output shaft end of the square bevel gearbox rotates through the support platform and is fixedly connected to the bottom of the support shaft on the corresponding sprocket; Another output shaft of the square bevel gearbox is parallel to the length direction of the support platform and is fixedly connected to a set of pull stem components located below the support platform; The input shaft end of the square bevel gear gearbox is fixedly connected with a universal joint, and one end of the universal joint away from the square bevel gear gearbox is vertically rotatably mounted on the top surface of the base, and a gear one is fixedly mounted on the periphery of the universal joint near the bottom end, the two gears one are meshed with each other, and one of the gears one is meshed with the gear two.

[0012] Further, the stem pull assembly includes a mounting shaft fixedly connected to the output shaft end of the square bevel gear transmission, the mounting shaft is arranged parallel to the support platform at the corresponding position, a plurality of stem pull plates are fixedly installed on the periphery of the mounting shaft and are distributed in a circumferential array about the axis of the mounting shaft, and a plurality of V-shaped notches are arranged in an array along the length direction of the stem pull plate on a side away from the mounting shaft; A bearing seat is installed through the periphery of the installation shaft, and the connecting end of the bearing seat is fixedly installed on the bottom surface of the upper support platform.

[0013] Furthermore, a pulley 1 and a pulley 3 are fixedly installed on the periphery of the input shaft of the spherical bevel gear gearbox, a pulley 2 is fixedly installed on the shaft end of the output shaft of the gearbox, and a belt 1 is installed between the pulley 2 and the pulley 1.

[0014] Furthermore, the walking mechanism includes a rotating shaft and a universal wheel, and the universal wheel is fixedly mounted on the bottom surface of the base and is located at one end near the gearbox; The rotating shaft rotatably passes through the base at one end of the side of the base away from the universal wheel, and walking wheels are fixedly installed at both ends of the rotating shaft. A pulley four aligned with the pulley three is fixedly installed on the outer periphery of the rotating shaft, and a belt two is installed between the pulley four and the pulley three.

[0015] Beneficial effects of the present invention: 1. In the ear picking mechanism of the present invention, the chain tooth clamping working principle is used to reduce the disturbance to the millet ear, and the adjustment of the ear posture is achieved by changing the loading mode and the gravity direction. The low damage effect after the ear and stem are separated is guaranteed by the limiting effect of the stem and the cutting effect of the reciprocating cutter, so as to achieve the goal of increasing the yield of millet planting in a way of reducing losses and increasing efficiency, thereby promoting agricultural efficiency and increasing farmers' income.

[0016] 2. In the present invention, by setting the stem pulling component, the bottom of the ear of grain can be limitedly contacted with the top surface of the square-tooth ear picking chain, so that the reciprocating cutter 2 can cut the stem to the maximum extent, further reducing the content of straw in the storage box, and providing convenience for subsequent processing operations.

[0017] 3. The engine in the present invention can provide power for multiple moving parts in the entire device, improve the working efficiency of the engine, avoid multiple engines running at the same time, and thus reduce energy consumption; and the control system of a single engine is relatively simple, reducing system complexity and lowering the technical requirements for operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative work. Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the connection relationship between the spherical bevel gear transmission and the rotating column in the present invention; Figure 3 It is a structural schematic diagram of the connection relationship between the reciprocating cutter 1 and the crank 1 in the present invention; Figure 4 yes Figure 3 A magnified view of part A; Figure 5 It is a structural schematic diagram of the connection relationship between the second reciprocating cutter and the second crank in the present invention; Figure 6 It is a structural schematic diagram of the ear picking mechanism in the present invention; Figure 7 It is a structural schematic diagram of the connection relationship between the rotating column and a universal joint in the present invention; The reference numerals are as follows: 1-base, 2-gearbox, 3-engine, 4-universal wheel, 5-travel wheel, 6-support rod, 7-support seat, 8-square bevel gear gearbox, 9-universal joint, 10-gear 1, 11-gear 2, 12-rotating column, 13-crank 1, 14-push-pull rod, 15-reciprocating cutter 1, 16-installation shaft, 17-stem pulling plate, 18-bearing seat, 19-crank 2, 20-reciprocating cutter 2, 21-support table, 22-sprocket, 23-support wheel, 24-square tooth ear picking chain, 25- Tensioning sprocket, 26-rotating shaft, 27-storage box, 28-pulley one, 29-belt one, 30-pulley two, 31-pulley three, 32-belt two, 34-spherical bevel gearbox, 35-driving block, 36-limiting slide one, 37-limiting slide two, 38-moving knife one, 39-driving rod, 40-convex seat, 41-mounting groove, 42-limiting groove, 43-column, 44-limiting slide three, 45-moving knife two, 46-connecting rod, 47-pulley four, 48-fixed knife one, 49-fixed knife two. DETAILED DESCRIPTION

[0019] 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 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.

[0020] Embodiment 1: See also Figure 1 to Figure 7 In an embodiment of the present invention, a millet ear picking and harvesting device comprises a base 1, a gearbox 2 is fixedly mounted on one end of the top surface of the base 1, an engine 3 is fixedly mounted above the gearbox 2, an output shaft end of the engine 3 is transmission-connected to an input shaft of the gearbox 2 through a pulley structure, and a U-shaped avoidance groove is provided at the middle position of one end of the base 1 away from the gearbox 2; A reciprocating cutter 15 is installed at the bottom of the base 1 at one end away from the gearbox 2, and a reciprocating cutter 20 is arranged above the middle position of the base 1, and an ear picking mechanism is also fixedly installed on the top surface of the base 1; A spherical bevel gear gearbox 34 is embedded in the base 1, and the input shaft of the spherical bevel gear gearbox 34 is transmission-connected to the output shaft of the gearbox 2. The output end of the spherical bevel gear gearbox 34 is transmission-connected to a transmission component 1 vertically arranged with the base 1, and the transmission component 1 is transmission-connected to the reciprocating cutter 20 and the reciprocating cutter 1 15 at the same time; A support base 7 is fixedly installed on the top surface of the base 1 at a position close to the gearbox 2, and a storage box 27 located above the engine 3 is fixedly installed on the top of the support base 7 at one side close to the gearbox 2. A transmission component 2 is installed between the other side of the support base 7 and the top surface of the base 1, and the transmission component 2 is transmission-connected to the transmission component 1 and the ear-picking mechanism. A walking mechanism is also installed on the base 1.

[0021] Among them, the transmission component 1 includes a rotating column 12 that can be rotated vertically and penetrates the base 1. The rotating column 12 is transmission-connected to the spherical bevel gear gearbox 34. A crank 2 19 is fixedly installed on the top of the rotating column 12, and a crank 13 is fixedly installed on the bottom of the rotating column 12. A gear 2 11 located above the base 1 is fixedly installed on the periphery of the rotating column 12 near the bottom.

[0022] The reciprocating cutter 15 includes a limiting slide 1 36 fixedly mounted on one side of the bottom surface of the base 1 and away from one end of the gearbox 2, and a limiting slide 2 37 fixedly mounted on the bottom surface of the base 1 and away from one end of the gearbox 2; The length direction of the limiting slide 36 is parallel to the length direction of the base 1, and a driving block 35 is installed on the inner side of the limiting slide 36. The end of the driving block 35 away from the gearbox 2 is an inclined surface, and a mounting groove 41 is provided on the inclined surface. The top and bottom surfaces of the mounting groove 41 are both provided with limiting grooves 42 parallel to the limiting groove 42. A column 43 is slidably installed in the mounting groove 41, and the top and bottom ends of the column 43 are respectively slidably clamped in the limiting grooves 42 at corresponding positions, and a driving rod 39 is fixedly connected to the middle position of the periphery of the column 43; A boss 40 is fixedly mounted on one end of the driving block 35 close to the gearbox 2, and an end of the boss 40 away from the driving block 35 is rotatably connected to a push-pull rod 14 via a pin shaft, and an end of the push-pull rod 14 away from the boss 40 is rotatably connected to a crank 13; A movable knife 38 is installed in a limited sliding manner in the limiting slide 37, and a fixed knife 48 is fixedly installed to slide relatively with the movable knife 38 in the length direction. The end of the movable knife 38 close to the limiting slide 36 is fixedly connected to the end of the driving rod 39 away from the column 43.

[0023] Among them, the reciprocating cutter 20 includes a limiting slide 3 44 fixedly installed at the bottom of the ear picking mechanism, a movable knife 2 45 is slidingly installed in the limiting slide 3 44, and a fixed knife 2 49 is fixedly installed to be relatively slidable with the movable knife 2 45 in the length direction, one end of the movable knife 2 45 is rotatably connected to a connecting rod 46 through a pin shaft, and the end of the connecting rod 46 away from the movable knife 2 45 is rotatably connected to the crank 2 19.

[0024] The ear picking mechanism includes two support platforms 21 obliquely arranged above the base 1, the two support platforms 21 are flush and spaced apart, and the end of the support platform 21 away from the gearbox 2 is the lower end; Sprocket wheels 22 are rotatably mounted on both ends of the top surface of the support platform 21 through a support shaft, and a square-toothed ear-picking chain 24 is mounted between the two sprocket wheels 22; A plurality of tensioning sprockets 25 meshing with the square-toothed ear-picking chains 24 are installed in an array along the length direction of the support platform 21 at a position close to the inner side of the top surface of the support platform 21; A support wheel 23 is rotatably mounted on the support platform 21 at one end away from the gearbox 2 through a bearing seat. The support wheel 23 is located between the square-toothed ear-picking chain 24 and the support platform 21, and the support wheel 23 and the square-toothed ear-picking chain 24 are in rolling contact. A support rod 6 is fixedly installed between the bottom surface of the support platform 21 at a position close to the middle and the top surface of the base 1 .

[0025] The transmission assembly 2 includes two square bevel gearboxes 8 fixedly mounted on the top of the support seat 7. The two square bevel gearboxes 8 are respectively located below the ends of the two support platforms 21. An output shaft axis of the square bevel gearbox 8 is coaxial with the sprocket 22 at the corresponding position, and the output shaft end of the square bevel gearbox 8 rotates through the support platform 21 and is fixedly connected to the bottom of the support shaft on the corresponding sprocket 22. Another output shaft of the square bevel gearbox 8 is parallel to the length direction of the support platform 21 and is fixedly connected to a set of pull stem components located below the support platform 21; The input shaft end of the square bevel gear transmission 8 is fixedly connected to a universal joint 9, and one end of the universal joint 9 away from the square bevel gear transmission 8 is vertically rotatably mounted on the top surface of the base 1, and a gear 10 is fixedly mounted on the periphery of the universal joint 9 near the bottom end, and the two gears 10 are meshed with each other, and one of the gears 10 is meshed with gear 2 11.

[0026] The stem pull assembly includes a mounting shaft 16 fixedly connected to the output shaft end of the square bevel gear box 8, the mounting shaft 16 is arranged parallel to the support platform 21 at the corresponding position, and a plurality of stem pull plates 17 are fixedly installed on the periphery of the mounting shaft 16 and are distributed in a circumferential array about the axis of the mounting shaft 16, and a plurality of V-shaped notches are arranged in an array along the length direction of the stem pull plate 17 away from the mounting shaft 16; A bearing seat 18 is installed through the periphery of the installation shaft 16 , and the connecting end of the bearing seat 18 is fixedly installed on the bottom surface of the upper support platform 21 .

[0027] When the present invention is used: Start the engine 3, which drives the walking mechanism to make the device body start to move. At the same time, the engine 3 also drives the spherical bevel gearbox 34 to operate. The spherical bevel gearbox 34 drives the rotating column 12 to rotate. The rotating column 12 drives the reciprocating cutter 15 and the belt 129 to move through the crank 13 and the crank 2 19 respectively. At the same time, the rotation of the rotating column 12 drives the two universal joints 9 to rotate through the gear 2 11 and the two gears 10. The rotation of the universal joint 9 makes the two square bevel gearboxes 8 run synchronously, so that the ear picking mechanism and the stem pulling assembly can operate; During the movement of the main body of the device, the upper part of the millet stalk enters between the two square-tooth ear-picking chains 24 and between the two mounting shafts 16, and the bottom position of the stalk is cut off by the reciprocating cutter 15 when passing through the reciprocating cutter 15. The cut stalk is transmitted to one end of the support platform 21 close to the storage box 27 along with the movement of the two square-tooth ear-picking chains 24. During the process, the two groups of stem pulling components cause the stalk to be subjected to a downward pulling force during the transmission process, so that the millet ear is contacted and limited above the square-tooth ear-picking chain 24. When passing through the reciprocating cutter 20, the stalk below the ear is cut off by the reciprocating cutter 20, and finally only the ear of millet is left and is transmitted to the storage box 27, thereby completing the automated picking and collection of the ear of millet.

[0028] Specific: In the transmission component 1, the rotating column 12 synchronously drives the crank 2 19 and the crank 13 to rotate; the rotation of the crank 13 drives the movable knife 2 45 to perform reciprocating linear motion along the length direction of the limiting slide 1 36 through the push-pull rod 14, and the movement of the driving block 35 causes the position of the column 43 in the mounting groove 41 to continuously change, and drives the movable knife 1 38 to perform reciprocating linear motion along the length direction of the limiting slide 2 37 through the driving rod 39, thereby achieving the purpose of cutting the bottom position of the millet stem by the movable knife 1 38; The rotation of the second crank 19 drives the second moving knife 45 to perform reciprocating linear motion in the length direction of the limiting slide seat 3 44 through the connecting rod 46, so that the second moving knife 45 can cut the stems; The rotation of the rotating column 12 also drives the gear 2 11 to rotate. The rotation of the gear 2 11 causes the two universal joints 9 in the transmission assembly 2 to rotate synchronously and in opposite directions through the two gears 1 10. The universal joints 9 drive the square bevel gear box 8 to operate. Among them, the two square bevel gear transmissions 8 drive the two sprockets 22 to rotate synchronously and in opposite directions. The rotation of the sprockets 22 drives the square-tooth ear-picking chain 24 to move continuously. During the ear-picking process, the stalks are located between the two square-tooth ear-picking chains 24. The synchronous and opposite movements of the two square-tooth ear-picking chains 24 achieve the purpose of conveying the millet to the storage box 27.

[0029] The other output end of the square bevel gear transmission 8 drives the mounting shaft 16 to rotate; the two mounting shafts 16 also perform synchronous and opposite rotational motion, and cooperate with the V-shaped notch of the stem pulling plate 17, so that the stem pulling plate 17 on the two mounting shafts 16 has a downward pulling effect on the millet stalks during continuous rotation, which can make the bottom of the ear of millet contact with the top surface of the square tooth ear picking chain 24, so that the reciprocating cutter 20 can cut off the stalks to the maximum extent, reduce the content of straw in the storage box 27, and provide convenience for subsequent processing operations.

[0030] Among them, Figure 6 As shown, the right sprocket 22 performs a clockwise rotation motion, and the left sprocket 22 performs a counterclockwise rotation motion.

[0031] Among them, the square bevel gearbox 8 can realize two mutually perpendicular output shafts. Its characteristics and applications have been applied in some professional fields; the two output shafts are usually arranged at a 90-degree angle, allowing multi-directional power output in a limited space, which is very suitable for applications requiring power in different directions and belongs to the prior art.

[0032] In the ear picking mechanism of the present invention, the chain tooth clamping working principle is used to reduce the disturbance to the millet ear, and the adjustment of the ear posture is achieved by changing the loading mode and the direction of gravity. The low damage effect after the separation of the ear and the stem is guaranteed by the limiting action of the stem and the cutting action of the reciprocating cutter, so as to achieve the goal of increasing the yield per unit area of ​​millet planting in a way of reducing losses and increasing efficiency, thereby promoting agricultural efficiency and increasing farmers' income.

[0033] Therefore, the present invention proposes a new solution to the current situation of millet harvesting, filling the gap in the field of mechanized millet ear picking. The present invention can not only solve the problem that millet is difficult to mechanize in hilly and mountainous areas, but also can be applied to the cutting table part of combined operation machinery to reduce the straw content in the threshing device, which can greatly reduce power consumption and reduce the millet loss rate of the threshing device.

[0034] Embodiment 2: See also Figure 1 to Figure 3 On the basis of Example 1, a pulley 28 and a pulley 31 are fixedly installed on the periphery of the input shaft of the spherical bevel gear transmission 34, a pulley 2 30 is fixedly installed on the end of the output shaft of the transmission 2, and a belt 29 is installed between the pulley 2 30 and the pulley 1 28.

[0035] The walking mechanism includes a rotating shaft 26 and a universal wheel 4. The universal wheel 4 is fixedly mounted on the bottom surface of the base 1 and is located near one end of the gearbox 2. The rotating shaft 26 rotatably passes through the base 1 at one end of the side of the base 1 away from the universal wheel 4, and walking wheels 5 are fixedly installed at both ends of the rotating shaft 26. A pulley four 47 aligned with the pulley three 31 is fixedly installed on the outer periphery of the rotating shaft 26, and a belt two 32 is installed between the pulley four 47 and the pulley three 31.

[0036] By setting the pulley 1 28, the pulley 2 30 and the belt 1 29, the spherical bevel gear transmission 34 is connected to the gearbox 2, and by setting the pulley 4 47, the belt 2 32 and the pulley 3 31, the spherical bevel gear transmission 34 is also connected to the rotating shaft 26, so that the engine 3 can simultaneously drive the transmission component 1 and the running wheel 5 through the gearbox 2 and the spherical bevel gear transmission 34, that is, the engine 3 can provide power for multiple moving parts in the whole device, which can improve the working efficiency of the engine 3 and avoid the simultaneous operation of multiple engines, thereby reducing energy consumption; and the control system of the single engine 3 is relatively simple, which reduces the system complexity and reduces the technical requirements for the operator.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A millet ear picking and harvesting device, comprising a base (1), characterized in that: A gearbox (2) is fixedly mounted on one end of the top surface of the base (1); an engine (3) is fixedly mounted above the gearbox (2); an output shaft end of the engine (3) is transmission-connected to an input shaft of the gearbox (2) via a pulley structure; a U-shaped avoidance groove is provided at the middle position of one end of the base (1) away from the gearbox (2); A reciprocating cutter 1 (15) is installed at the bottom of the base (1) at an end away from the gearbox (2), and a reciprocating cutter 2 (20) is arranged above the middle of the base (1). An ear picking mechanism is also fixedly installed on the top surface of the base (1); A spherical bevel gear gearbox (34) is embedded and installed in the base (1); the input shaft of the spherical bevel gear gearbox (34) is drivingly connected to the output shaft of the gearbox (2); the output end of the spherical bevel gear gearbox (34) is drivingly connected to a transmission component 1 vertically arranged on the base (1); the transmission component 1 is drivingly connected to the reciprocating cutter 2 (20) and the reciprocating cutter 1 (15); A support seat (7) is fixedly mounted on the top surface of the base (1) at a position close to the gearbox (2); a storage box (27) located above the engine (3) is fixedly mounted on the top of the support seat (7) at a side close to the gearbox (2); a transmission component 2 is mounted between the other side of the support seat (7) and the top surface of the base (1); and the transmission component 2 is in transmission connection with the transmission component 1 and the ear picking mechanism; A walking mechanism is also installed on the base (1).

2. A millet ear picking and harvesting device according to claim 1, characterized in that: The transmission assembly 1 comprises a rotating column (12) which is rotatably and vertically penetrates the base (1), the rotating column (12) being transmission-connected to the spherical bevel gearbox (34), a crank 2 (19) being fixedly mounted on the top end of the rotating column (12), a crank 1 (13) being fixedly mounted on the bottom end of the rotating column (12), and a gear 2 (11) located above the base (1) being fixedly mounted on the periphery of the rotating column (12) near the bottom.

3. A millet ear picking and harvesting device according to claim 2, characterized in that: The reciprocating cutter (15) comprises a first limiting slide (36) fixedly mounted on one side of the bottom surface of the base (1) and away from one end of the gearbox (2), and a second limiting slide (37) fixedly mounted on the bottom surface of the base (1) and away from one end of the gearbox (2); The length direction of the limiting slide seat 1 (36) is parallel to the length direction of the base (1); a driving block (35) is slidably mounted on the inner side of the limiting slide seat 1 (36); an end of the driving block (35) away from the gearbox (2) is an inclined surface, and a mounting groove (41) is provided on the inclined surface; a limiting groove (42) parallel to the limiting groove (42) is provided on the top and bottom surfaces of the mounting groove (41); a column (43) is slidably mounted in the mounting groove (41); the top and bottom ends of the column (43) are respectively slidably mounted in the limiting groove (42) at corresponding positions; and a driving rod (39) is fixedly connected to the middle position of the outer periphery of the column (43); A convex seat (40) is fixedly mounted on one end of the driving block (35) close to the gearbox (2); an end of the convex seat (40) away from the driving block (35) is rotatably connected to a push-pull rod (14) via a pin shaft; an end of the push-pull rod (14) away from the convex seat (40) is rotatably connected to the crank 1 (13); A movable knife (38) is installed in a limiting sliding manner in the limiting slide seat (37), and a fixed knife (48) is fixedly installed to slide relative to the movable knife (38) in the length direction. An end of the movable knife (38) close to the limiting slide seat (36) is fixedly connected to an end of the driving rod (39) away from the column (43).

4. The millet ear picking and harvesting device according to claim 2, characterized in that: The reciprocating cutter 2 (20) comprises a limiting slide 3 (44) fixedly mounted at the bottom of the ear picking mechanism, a movable knife 2 (45) is slidably mounted in the limiting slide 3 (44), and a fixed knife 2 (49) is fixedly mounted so as to slide relative to the movable knife 2 (45) in the length direction, one end of the movable knife 2 (45) is rotatably connected to a connecting rod (46) via a pin shaft, and an end of the connecting rod (46) away from the movable knife 2 (45) is rotatably connected to the crank 2 (19).

5. The millet ear picking and harvesting device according to claim 2, characterized in that: The ear picking mechanism comprises two support platforms (21) obliquely arranged above the base (1), the two support platforms (21) being flush with each other and spaced apart, and the end of the support platform (21) away from the gearbox (2) being the lower end; Sprocket wheels (22) are rotatably mounted on both ends of the top surface of the support platform (21) via a support shaft, and a square-tooth ear-picking chain (24) is mounted between the two sprocket wheels (22); A plurality of tensioning sprockets (25) meshing with the square-tooth ear-picking chain (24) are installed in an array along the length direction of the top surface of the support platform (21) at a position close to the inner side; A supporting wheel (23) is rotatably mounted on the support platform (21) at one end away from the gearbox (2) via a bearing seat, the supporting wheel (23) being located between the square-tooth ear-picking chain (24) and the support platform (21), and the supporting wheel (23) and the square-tooth ear-picking chain (24) are in rolling contact. A support rod (6) is fixedly mounted between a bottom surface of the support platform (21) at a position close to the middle and a top surface of the base (1).

6. The millet ear picking and harvesting device according to claim 5, characterized in that: The second transmission assembly comprises two square bevel gear transmission boxes (8) fixedly mounted on the top of the support seat (7), the two square bevel gear transmission boxes (8) are respectively located below the ends of the two support platforms (21), an output shaft axis of the square bevel gear transmission box (8) is coaxial with a sprocket (22) at a corresponding position, and the output shaft end of the square bevel gear transmission box (8) rotates through the support platform (21) and is fixedly connected to the bottom of the support shaft on the corresponding sprocket (22); Another output shaft of the square bevel gear transmission (8) is parallel to the length direction of the support platform (21), and is fixedly connected to a group of pull stem components located below the support platform (21); The input shaft end of the square bevel gear gearbox (8) is fixedly connected to a universal joint (9); one end of the universal joint (9) away from the square bevel gear gearbox (8) is vertically rotatably mounted on the top surface of the base (1); a gear one (10) is fixedly mounted on the periphery of the universal joint (9) near the bottom end; the two gear ones (10) are meshed with each other, and one of the gears one (10) is meshed with the gear two (11).

7. The millet ear picking and harvesting device according to claim 6, characterized in that: The stem pull assembly comprises a mounting shaft (16) fixedly connected to the output shaft end of the square bevel gear transmission (8), the mounting shaft (16) being arranged in parallel below a support platform (21) at a corresponding position, a plurality of stem pull plates (17) arranged in an array circumferentially about the axis of the mounting shaft (16) being fixedly mounted on the periphery of the mounting shaft (16), and a plurality of V-shaped notches arranged in an array along the length direction of the stem pull plate (17) on a side away from the mounting shaft (16); A bearing seat (18) is installed through the periphery of the installation shaft (16), and a connecting end of the bearing seat (18) is fixedly installed on the bottom surface of the upper support platform (21).

8. The millet ear picking and harvesting device according to claim 1, characterized in that: A pulley 1 (28) and a pulley 3 (31) are fixedly mounted on the periphery of the input shaft of the spherical bevel gear gearbox (34), a pulley 2 (30) is fixedly mounted on the shaft end of the output shaft of the gearbox (2), and a belt 1 (29) is mounted between the pulley 2 (30) and the pulley 1 (28).

9. The millet ear picking and harvesting device according to claim 8, characterized in that: The walking mechanism comprises a rotating shaft (26) and a universal wheel (4); the universal wheel (4) is fixedly mounted on the bottom surface of the base (1) and is located at one end close to the gearbox (2); The rotating shaft (26) rotatably penetrates the base (1) at one end of the side of the base (1) away from the universal wheel (4), and walking wheels (5) are fixedly mounted on both ends of the rotating shaft (26). A pulley four (47) aligned with the pulley three (31) is fixedly mounted on the outer periphery of the rotating shaft (26), and a belt two (32) is mounted between the pulley four (47) and the pulley three (31).

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