A top-mounted rice seedling throwing device

Abstract

A rice seedling throwing device with an ejection belt conveyor, wherein a main gear box is welded and fixedly connected to the bottom of two sub-gear boxes, a cam driving assembly comprises a cam and a cam driving shaft, the cam is mounted on the cam driving shaft, the cam driving shaft is arranged on the top of the main gear box, a push rod driving block is mounted in the cam, and the push rod driving block is mounted on the top of the main gear box at the side, and the seedling ejector is mounted in the push rod driving block; and seedling tray conveyor belts are installed at the rear ends of the two sub-gear boxes, the transmission mechanism is respectively connected with the cam driving shaft and the sub-gear box transmission shaft installed on the sub-gear box, and the sub-gear box transmission shaft is connected with the seedling tray conveyor belt; the same transmission mechanism is used to provide power for the seedling ejector for ejecting the seedlings and the seedling tray conveyor belt for throwing the seedlings, thereby realizing the full mechanization of seedling throwing planting, and the seedling throwing precision is high, which can not only improve the efficiency of seedling throwing planting, but also promote stable and high yield of rice, and effectively reduce labor costs.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery rice seedling throwing, in particular to a top-out belt-conveyed rice seedling throwing device. Background Art

[0002] Rice is the main food crop in my country, with an annual planting area of ​​about 30 million hectares and a total annual rice output of nearly 200 million tons, accounting for 40% of the country's total grain output. It can be seen that rice occupies an extremely important position in my country's food security. In the process of rice planting, direct seeding, transplanting, and throwing are generally used. Among them, the advantages of throwing are particularly obvious, which not only saves time and labor, but also shortens the planting time, seizes the transplanting season, and is conducive to stable and high yields.

[0003] Currently, there is a lack of mechanized rice seedling transplanting machinery on the market, which greatly affects the efficiency of rice seedling transplanting and the manpower required. Summary of the invention

[0004] The technical problem solved by the present invention is to provide a top-out belt-conveyed rice seedling throwing device to solve the problems in the above-mentioned background technology.

[0005] The technical problem solved by the present invention is achieved by adopting the following technical solutions:

[0006] A rice seedling throwing device with an ejection belt conveyor comprises a main gear box, a sub-gear box, a push rod driving block, a cam driving assembly, a positioning slider, a seedling conveyor belt, a seedling push rod and a transmission mechanism, wherein the main gear box is welded and fixedly connected to the bottom of two sub-gear boxes, the cam driving assembly comprises a cam and a cam driving shaft, the cam is installed on the cam driving shaft, the cam driving shaft is arranged on the top of the main gear box, the push rod driving block is installed in the cam, and the push rod driving block is installed on the top of the main gear box, and the seedling push rod for ejecting the seedlings is installed in the push rod driving block; and seedling tray conveyor belts are installed at the rear ends of the two sub-gear boxes, the transmission mechanism is respectively connected to the cam driving shaft and the sub-gear box transmission shaft installed on the sub-gear box, and the sub-gear box transmission shaft is connected to the seedling tray conveyor belt.

[0007] In the present invention, the main gearbox includes a pair of symmetrically installed support assemblies, which are composed of an intermediate support plate, a positioning slider fixing plate, a main gearbox front support plate and a main gearbox rear support plate, and a cam drive shaft mounting hole for installing the cam drive shaft is provided at the top of the intermediate support plate, one end of the intermediate support plate is fixed to the front support plate of the main gearbox, and a positioning slider fixing plate is provided between the front support plate of the main gearbox and the rear support plate of the main gearbox.

[0008] In the present invention, a positioning slider for laterally positioning the push rod driving block is arranged on the positioning slider fixing plate, the positioning slider comprises a positioning slider body and a guide rail, and slots for embedding the positioning slider body into the guide rail are arranged on both sides of the guide rail.

[0009] In the present invention, in the auxiliary gearbox, the intermediate bearing fixing plate is arranged between the auxiliary gearbox rear support plate and the auxiliary gearbox front support plate, and the auxiliary gearbox top plate is installed on the top of the auxiliary gearbox front support plate; the auxiliary gearbox crankshaft support plate is fixed to one side of the auxiliary gearbox top plate and is located above the intermediate bearing fixing plate, and the linear bearing fixing plate is installed on the auxiliary gearbox crankshaft support plate.

[0010] In the present invention, a seedling tray intermediate support frame is installed between the two auxiliary gear boxes.

[0011] In the present invention, a slot and a cam drive shaft mounting hole are provided in the cam, the slot depth is 5 mm, the cam lift is 30 mm, the repose angle is 144°, and the bearing roller of the push rod drive block is installed in the slot.

[0012] In the present invention, the push rod driving block is provided with a front end hole of the push rod driving block for installing the seedling push rod, a push screw hole for fixing the seedling push rod, a bearing roller and a positioning slider fixing hole for installing the push rod driving block on the top of the main gear box by bolts.

[0013] In the present invention, the seedling conveyor belt includes a belt support frame, a belt and a roller, and the belt support frame is provided with four through holes for installing the roller, the roller is installed on the belt support frame, the belt is sleeved on the roller, and the auxiliary gear box transmission shaft is connected to the belt.

[0014] In the present invention, in the transmission mechanism, the driving sprocket is fixed to one side of the power input shaft by means of a top screw nesting, the driven sprocket is connected to the driving sprocket by means of a transmission chain, the driving gear is fixed to the other side of the power input shaft by means of a top screw nesting, the power input shaft is sleeved on the bearing seat, the driven gear is fixed to the auxiliary transmission shaft by means of a top screw nesting and meshes with the driving gear, and the bevel gear is installed at the end of the auxiliary transmission shaft and the end of the auxiliary gear box transmission shaft by means of a top screw nesting.

[0015] In the present invention, under the action of the same transmission mechanism, the motor drives the power input shaft, and the power input shaft drives the cam drive shaft located at the top of the main gear box through chain transmission. The push rod drive block forms a follower with the cam through the bearing roller clamped in the cam groove, and because the positioning slider limits the lateral movement of the push rod drive block, the driving seedling push rod can only move forward and backward, and the forward and backward movement is cyclically performed to push out the seedlings; the power input shaft drives the secondary transmission shaft through the engagement of the driving gear and the driven gear, and then the power is connected through the bevel gear installed at the end of the secondary transmission shaft and the end of the secondary gear box transmission shaft, and the secondary gear box transmission shaft transmits the power to the seedling tray conveyor belt through the belt, and the seedling tray conveyor belt then throws the ejected seedlings to both sides of the device respectively, thereby realizing rice seedling throwing.

[0016] Beneficial effect: The present invention adopts the same transmission mechanism to provide power for the seedling push rod used to push the seedling out and the seedling tray conveyor belt used to throw the seedling, so that the seedling is thrown synchronously while the seedling is pushed out, thereby achieving

[0017] The entire process of seedling casting is mechanized with high precision, which can not only improve the efficiency of seedling casting, but also promote stable and high yield of rice, effectively reduce labor costs, and has the advantages of easy processing, low cost and simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of a preferred embodiment of the present invention.

[0019] Figure 2 It is a top view of a preferred embodiment of the present invention.

[0020] Figure 3 It is a schematic diagram of the main gearbox structure in a preferred embodiment of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of the auxiliary gear box in a preferred embodiment of the present invention.

[0022] Figure 5 It is a schematic diagram of the cam structure in a preferred embodiment of the present invention.

[0023] Figure 6 Schematic diagram of the structure of the push rod driving block in a preferred embodiment of the present invention.

[0024] Figure 7 It is a schematic diagram of the positioning slider structure in a preferred embodiment of the present invention.

[0025] Figure 8 It is a side view of the transmission mechanism in a preferred embodiment of the present invention.

[0026] Fig. 9 It is a rear view of the transmission mechanism in a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams.

[0028] See also Figures 1-2 A rice seedling throwing device with ejection belt delivery comprises a main gear box 1, a sub-gear box 2, a push rod driving block 3, a cam 4, a positioning slider 5, a seedling tray intermediate support frame 6, a seedling conveyor belt 7, a seedling push rod 9, a cam driving shaft 10 and a transmission mechanism 32, wherein the main gear box 1 and two sub-gear boxes 2 are fixed by bottom welding, the cam 4 is located at the top of the main gear box 1 and is driven by the cam driving shaft 10, the bearing roller 28 of the push rod driving block 3 is installed in the card slot 24 of the cam 4, and the side of the push rod driving block 3 is provided with a positioning slider fixing hole 29 for installing the push rod driving block 3 on the main gear box by bolts. On the back of the positioning slider body 30 at the top of the wheel box 1, the seedling push rod 9 is installed in the front end hole 26 of the push rod driving block 3 and fixed through the top screw hole 27. At the same time, the seedling push rod 9 is fixed by the linear bearing 15 set on the linear bearing fixing plate 20 between the main gear box 1 and the auxiliary gear 2. The seedling tray intermediate support frame 6 is installed in the middle of the two auxiliary gear boxes 2, and the seedling tray conveyor belt 7 is installed at the rear end of the two auxiliary gear boxes 2. The transmission mechanism 32 is respectively connected to the cam drive shaft 10 and the auxiliary gear box 2, and the auxiliary gear box 2 is connected to the seedling tray conveyor belt 7. The positioning slider 5 is installed on the top of the main gear box 1;

[0029] like Figure 3 As shown, the main gearbox 1 includes a pair of symmetrically installed support assemblies, which are composed of an intermediate support plate 14, a positioning slider fixing plate 15, a main gearbox front support plate 16 and a main gearbox rear support plate 17, and a cam drive shaft mounting hole for mounting the cam drive shaft 10 is provided at the top of the intermediate support plate 14, one end of the intermediate support plate 14 is fixed on the main gearbox front support plate 16, and a positioning slider fixing plate 15 is provided between the main gearbox front support plate 16 and the main gearbox rear support plate 17;

[0030] like Figure 4 As shown, the auxiliary gearbox 2 includes an intermediate bearing fixing plate 18, an auxiliary gearbox rear support plate 19, a linear bearing fixing plate 20, an auxiliary gearbox crankshaft support plate 21, an auxiliary gearbox top plate 22 and an auxiliary gearbox front support plate 23, wherein the intermediate bearing fixing plate 18 is arranged between the auxiliary gearbox rear support plate 19 and the auxiliary gearbox front support plate 23, the auxiliary gearbox top plate 22 is installed on the top of the auxiliary gearbox front support plate 23, the auxiliary gearbox crankshaft support plate 21 is fixed to one side of the auxiliary gearbox top plate 22 and is located above the intermediate bearing fixing plate 18, and the linear bearing fixing plate 20 is installed on the auxiliary gearbox crankshaft support plate 21;

[0031] like Figure 5As shown, a slot 24 and a cam drive shaft mounting hole 25 are provided in the cam 4, the slot 24 has a depth of 5 mm, the cam lift is 30 mm, and the repose angle is 144°;

[0032] like Figure 6 As shown, the push rod driving block 3 includes a front end hole 26 of the push rod driving block, a top screw hole 27, a bearing roller 28 and a positioning slider fixing hole 29, wherein the front end hole 26 of the push rod driving block is used to install the seedling push rod 9, the top screw hole 27 is used to fix the seedling push rod 9, the bearing roller 28 is installed at the rear of the positioning slider 5, and the positioning slider fixing hole 29 is used to install the push rod driving block 3 on the back of the positioning slider body 30 at the top of the main gear box 1 through bolts;

[0033] like Figure 7 As shown, the positioning slider 5 includes a positioning slider body 30 and a guide rail 31. The positioning slider body 30 is embedded in the guide rail 31 through the slots on both sides of the guide rail 31. The positioning slider 5 is installed on the positioning slider fixing plate 15 on the top of the main gear box 1, and is used to laterally position the push rod driving block 3;

[0034] The seedling conveyor belt 7 includes a belt support frame, a belt and a roller shaft, and the belt support frame is provided with four through holes for installing the roller shaft, the roller shaft is installed on the belt support frame, and the belt is sleeved on the roller shaft;

[0035] like Figure 8 , 9 As shown, the transmission mechanism 32 includes a power input shaft 8, a transmission chain 11, a secondary transmission shaft 12, a secondary gearbox transmission shaft 13, a bearing seat 33, a driving gear 34, a driving sprocket 35, a driven sprocket 36, a bevel gear 37 and a driven gear 38, wherein the driving sprocket 35 is fixed to one side of the power input shaft 8 by means of a top screw nesting, the driven sprocket 36 is connected to the driving sprocket 35 through the transmission chain 11, the driving gear 34 is fixed to the other side of the power input shaft 8 by means of a top screw nesting, the power input shaft 8 is sleeved on the bearing seat 33, the driven gear 38 is fixed to the secondary transmission shaft 12 by means of a top screw nesting, and meshes with the driving gear 34, the bevel gear 37 is installed at the ends of the secondary transmission shaft 12 and the secondary gearbox transmission shaft 13 by means of a top screw nesting, and the secondary gearbox transmission shaft 13 installed on the secondary gearbox 2 is connected to the belt;

[0036] In this embodiment, under the action of the same transmission mechanism 32, the motor drives the power input shaft 8, and the power input shaft 8 drives the cam drive shaft 10 located at the top of the main gear box 1 through the chain drive. The push rod driving block 3 forms a follower with the cam 4 through the bearing roller 28 inserted into the slot 24, and because the positioning slider 5 limits the lateral movement of the push rod driving block 3, the driving seedling push rod 9 can only move forward and backward, and the forward and backward movement is cyclically performed to push the seedlings out; the power input shaft 8 drives the auxiliary transmission shaft 12 through the driving gear 34 and the driven gear 38, and then connects the power through the bevel gear 37 installed at the end of the auxiliary transmission shaft 12 and the auxiliary gear box transmission shaft 13, and the auxiliary gear box transmission shaft 13 transmits the power to the seedling tray conveyor belt 7 through the belt, and the seedling tray conveyor belt 7 then throws the ejected seedlings to both sides of the device respectively.

Claims

1. A rice seedling throwing device with a push-out belt, comprising a main gear box, a sub-gear box, a push rod driving block, a cam driving assembly, a positioning slider, a rice seedling conveyor belt, a rice seedling push rod and a transmission mechanism, characterized in that: The main gearbox is welded and fixedly connected with the bottom of the two sub-gearboxes. The cam driving assembly includes a cam and a cam driving shaft. The cam is installed on the cam driving shaft. The cam driving shaft is arranged on the top of the main gearbox. The push rod driving block is installed in the cam. The push rod driving block is installed on the top of the main gearbox. The push rod for pushing out the seedlings is installed in the push rod driving block. A seedling tray conveyor belt is installed at the rear end of the two sub-gearboxes. The main gearbox includes a pair of symmetrically installed support assemblies, which are composed of an intermediate support plate, a positioning slider fixing plate, a main gearbox front support plate and a main gearbox rear support plate, and a cam drive shaft mounting hole for installing the cam drive shaft is provided at the top of the intermediate support plate, one end of the intermediate support plate is fixed to the main gearbox front support plate, and a positioning slider fixing plate is provided between the main gearbox front support plate and the main gearbox rear support plate; a positioning slider for transversely positioning the push rod drive block is provided on the positioning slider fixing plate, the positioning slider includes a positioning slider body and a guide rail, and card slots for embedding the positioning slider body into the guide rail are respectively provided on both sides of the guide rail; The transmission mechanism includes a power input shaft, a transmission chain, a secondary transmission shaft, a secondary gearbox transmission shaft, a bearing seat, a driving gear, a driving sprocket, a driven sprocket, a bevel gear and a driven gear. The driving sprocket is fixed to one side of the power input shaft by means of a top screw nesting, the driven sprocket is connected to the driving sprocket through the transmission chain, the driving gear is fixed to the other side of the power input shaft by means of a top screw nesting, the power input shaft is sleeved on the bearing seat, the driven gear is fixed to the secondary transmission shaft by means of a top screw nesting and meshes with the driving gear, and the bevel gear is installed at the end of the secondary transmission shaft and the end of the secondary gearbox transmission shaft by means of a top screw nesting; Under the action of the same transmission mechanism, the motor drives the power input shaft, and the power input shaft drives the cam drive shaft located at the top of the main gear box through the chain drive. The push rod drive block forms a follow-up with the cam through the bearing roller inserted into the cam groove. Since the positioning slider limits the lateral movement of the push rod drive block, the seedling push rod can only be driven to move forward and backward, and the seedlings are pushed out in a cycle of forward and backward movement. At the same time, the power input shaft drives the secondary transmission shaft through the engagement of the driving gear and the driven gear, and then the power is connected through the bevel gear installed at the end of the secondary transmission shaft and the end of the secondary gear box transmission shaft. The secondary gear box transmission shaft transmits the power to the seedling tray conveyor belt through the belt, and the seedling tray conveyor belt then throws the ejected seedlings to both sides of the device respectively, thereby realizing rice seedling throwing.

2. The top-out belt-conveyed rice seedling throwing device according to claim 1, characterized in that: The auxiliary gearbox includes an intermediate bearing fixing plate, an auxiliary gearbox rear support plate, a linear bearing fixing plate, an auxiliary gearbox crankshaft support plate, an auxiliary gearbox top plate and an auxiliary gearbox front support plate. The intermediate bearing fixing plate is arranged between the auxiliary gearbox rear support plate and the auxiliary gearbox front support plate, and the auxiliary gearbox top plate is installed on the top of the auxiliary gearbox front support plate; the auxiliary gearbox crankshaft support plate is fixed to one side of the auxiliary gearbox top plate and is located above the intermediate bearing fixing plate, and the linear bearing fixing plate is installed on the auxiliary gearbox crankshaft support plate.

3. The device for throwing rice seedlings with a top-out belt conveyor according to claim 1, characterized in that: The cam is provided with a clamping groove for installing the roller of the push rod driving block bearing and a cam driving shaft installation hole for installing the cam driving shaft.

4. The top-out belt-conveyed rice seedling throwing device according to claim 1, characterized in that: The push rod driving block is provided with a front end hole of the push rod driving block for installing the seedling push rod, a push screw hole for fixing the seedling push rod, a bearing roller for installing the push rod driving block in the cam, and a positioning slider fixing hole for installing the push rod driving block on the top of the main gear box by bolts.

5. The top-out belt-conveyed rice seedling throwing device according to claim 1, characterized in that: The seedling conveyor belt comprises a belt support frame, a belt and a roller shaft, and the belt support frame is provided with four through holes for installing the roller shaft, the roller shaft is installed on the belt support frame, the belt is sleeved on the roller shaft, and the transmission shaft of the sub-gear box is connected to the belt.

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