A forestry tree seedling raising and sowing equipment

Abstract

A forestry tree seedling sowing equipment comprises a machine body and a sowing device, wherein the machine body comprises a frame, a spline shaft and two fixed shafts are rotatably connected on the frame, an adjusting shaft is connected in the middle of the fixed shaft, one of the adjusting shafts is connected to a nut, and the sowing device comprises a fixed seat, two sides of the fixed seat are respectively connected to a rotating seat and a sowing seat, a cam is connected in the middle of the fixed seat, a group of cam rods are connected in the middle of the rotating seat, a group of cam rods and the cam are slidably connected, and the outer sides of a group of cam rods are respectively connected to clamping rods; two symmetrical supporting frames are arranged on the upper part of the frame, a center hole is arranged in the middle of each supporting frame, and two symmetrical fixing holes are arranged on both sides of each center hole; the clamping force of the finger clamp of the device is adjustable to compensate for the wear of the seed plate and the finger clamp, the finger clamp has a long service life, strong adaptability and high sowing efficiency.

Description

Technical Field

[0001] The invention relates to the field of agricultural machinery, and in particular to a forestry tree seedling raising and sowing device. Background Art

[0002] When sowing, each finger clamp of the existing tree seeder completes the action of taking seeds and discharging seeds under the drive of the plane cam and the spring. However, the problems existing in the seeder are as follows: first, when the spring of the seeder is relaxed, the finger clamp will become loose, and the phenomenon of double seeds or broken seeds of the tree seeds is relatively serious, which seriously affects the quality of tree seed sowing. At this time, the problem can only be solved by replacing the spring, which not only increases the cost of use but also affects the sowing quality and efficiency. Second, when the seed plate, cam, and finger clamp are worn, the seeder can only be replaced and cannot be repaired, which increases the cost of use. Third, when there are many sundries stuck inside the seeder, the phenomenon of double seeds or broken seeds will also occur, and the sowing must be stopped, and then the seeder must be disassembled for cleaning before sowing can continue, which also affects the sowing efficiency. Fourth, each finger-clamp seeder is only suitable for seeds with a diameter within a certain range and has poor adaptability. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention provides a forestry tree seedling sowing equipment with adjustable clamping force, which can compensate for the wear of the seed plate and the finger clamp, has a long service life of the finger clamp, strong adaptability and high tree sowing efficiency.

[0004] The purpose of the present invention is to be achieved through the following technical solutions:

[0005] A forestry tree seedling raising and sowing equipment comprises a machine body and a seeding device, the machine body comprises a frame, a spline shaft and two fixed shafts are rotatably connected on the frame, an adjusting shaft is connected in the middle of the fixed shaft, one of the adjusting shafts is connected to a nut, the seeding device comprises a fixed seat, two sides of the fixed seat are respectively connected to a rotating seat and a seeding seat, a cam is connected in the middle of the fixed seat, a group of cam rods are connected in the middle of the rotating seat, a group of cam rods and the cam are slidably connected, and a group of cam rods are respectively connected to clamping rods on the outside; two symmetrical support frames are arranged on the upper part of the frame, each support frame is provided with a center hole in the middle, and two symmetrical fixing holes are arranged on both sides of each center hole, one of the fixing holes is provided with a nut sleeve on the outside, and a spline shaft is rotatably connected in the center hole, each A fixed shaft is fixedly connected in the fixing hole, a fixed shaft hole is provided in the middle of the fixed shaft, a waist groove is provided in the axial direction of the fixed shaft, an adjusting shaft is slidably connected in each fixed shaft, a group of adjusting rods are evenly distributed on the adjusting shaft, a group of adjusting rods are slidably connected to the waist groove, an adjusting rod groove is provided on the inner side of each adjusting rod, a nut is rotatably connected in the nut sleeve, and the inner side of the nut is threadedly connected to the corresponding end of the adjusting shaft, and a plow is connected to the lower part of each seeding device, and each plow is fixed in the fixing hole at the lower part of the frame; the fixed seat is a cylindrical box-shaped structure, a fixed seat spline hole is provided in the middle of the fixed seat, an arc-shaped groove seed outlet is provided on the outer side of the bottom of the fixed seat, a funnel is provided on the outer side of the cylindrical surface of the fixed seat, the lower part of the funnel passes through the fixed seat, and a baffle is provided at the connection between the inner side of the fixed seat and the funnel.

[0006] A seeding seat ring is provided on the middle end face of the seeding seat, a diamond-shaped inner retaining ring is provided in the middle of the seeding seat, the seeding seat ring and the inner retaining ring form a closed inner cavity, a seed outlet is provided at the lower part of the seeding seat ring for seeds to flow out, and two symmetrical seeding seat fixing holes are provided on the outer side of the seeding seat; the rotating seat is a disc-shaped structure, a rotating ring is provided on the outer side of the seeding seat, the outer side of the rotating ring is rotatably connected to the inner side of the fixed seat, the fixed seat and the outer side of the rotating seat are closed, the rear side of the fixed seat is fixedly connected to the end face of the seeding seat ring, and the fixed seat and the outer side of the seeding seat are closed; a fixed seat spline hole is provided in the middle of the fixed seat, a cam is provided in the fixed seat spline hole, a cam spline shaft in the middle of the cam is slidably connected to the fixed seat spline hole, a center shaft is provided in the middle of the rotating seat, and the center shaft is rotatably connected to the cam spline shaft hole in the middle of the cam spline shaft; the cam surface of the cam is a conical shape, and the axial cross-section of the cam is divided into five parts: cam surface No. 1, cam surface No. 2, cam surface No. 3, cam surface No. 4, and cam surface No. 5.

[0007] A regular polygonal outer ring is provided on the inner side of the rotating ring of the rotating seat, and an outer ring hole is provided on each surface of the outer ring. A seed clamping rod is provided in each outer ring hole, a spoon-shaped clamping head is provided on one side of the seed clamping rod, and a seed clamping rod thread is provided on the other side of the seed clamping rod. Each seed clamping rod is rotatably connected to the corresponding outer ring hole, and the clamping head faces the bottom of the fixed seat.

[0008] Beneficial effect: The axial cross section of the cam of the present invention is divided into five parts: No. 1 cam surface, No. 2 cam surface, No. 3 cam surface, No. 4 cam surface, and No. 5 cam surface. The cam rod is slidably connected to the cam, and the cam rod and the seed clamping rod are threadedly connected. When the cam rod slides on the cam surface, the position of the cam rod changes. When the cam drives the cam rod to move, the cam rod drives the seed clamping rod to rotate, and the gap between the chuck and the end face of the fixed seat changes, thereby realizing the action of the chuck taking seeds. The cam surface of the cam is a conical shape. When the cam moves along the axial direction, the cam will drive a group of cam rods to move at the same time, and a group of cam rods drive a group of seed clamping rods to rotate, so that ... This allows the chuck to adapt to changes in seed size or gap, ensuring that the chuck can clamp a seed each time, solving the problem of double seeds or broken seeds caused by spring relaxation when relying on springs to clamp seeds, solving the problem that the seeder can only be replaced but not repaired after the seed plate, cam and finger clamp are worn, solving the problem that there are many debris stuck inside the seeder, which will also cause double seeds or broken seeds for tree and gardening seeds, and solving the problem that each finger-clamp seeder is only suitable for tree and gardening seeds with a diameter within a certain range and has poor adaptability. The chuck ensures that the tree seeds can be clamped, and can also increase the clamping range of the tree seeds, while protecting the tree seeds from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the structure of the forestry tree seedling raising and sowing equipment described in the present invention.

[0010] Figure 2 The figure is a schematic diagram of the frame structure of the present invention.

[0011] Figure 3 This is a schematic diagram of the fixed shaft structure of the present invention.

[0012] Figure 4 This is a schematic diagram of the adjustment shaft structure of the present invention.

[0013] Figure 5 It is a schematic diagram of the structure of the next device described in the present invention.

[0014] Figure 6 It is a schematic diagram of the rear structure of the seeding device described in the present invention.

[0015] Figure 7 It is a schematic diagram of the internal structure of the next device described in the present invention.

[0016] Figure 8 It is a schematic diagram of the internal front view structure of the seeding device described in the present invention.

[0017] Fig. 9 It is a schematic diagram of the structure of the fixing seat described in the present invention.

[0018] Fig.10Schematic diagram of the transposition structure of the present invention.

[0019] Fig.11 It is a schematic diagram of the cam structure of the present invention.

[0020] Fig.12 It is a schematic diagram of the cross-sectional structure of the cam according to the present invention.

[0021] Fig.13 It is a schematic diagram of the cam rod structure of the present invention.

[0022] Fig.14 The figure is a schematic diagram of the structure of the seed clamping rod described in the present invention.

[0023] Fig.15 It is a schematic diagram of the structure of the seed lowering seat described in the present invention. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below according to the accompanying drawings and embodiments:

[0025] refer to Figure 1 A forestry tree seedling sowing equipment includes a body 100 and a seeding device 200. The body 100 includes a frame 110, a spline shaft 150 and two fixed shafts 120 are rotatably connected on the frame 110, an adjusting shaft 130 is connected in the middle of the fixed shaft 120, one of the adjusting shafts 130 is connected to a nut 140, and the seeding device 200 includes a fixed seat 210, and the two sides of the fixed seat 210 are respectively connected to a rotating seat 220 and a seeding seat 260, a cam 230 is connected in the middle of the fixed seat 210, a group of cam rods 240 are connected in the middle of the rotating seat 220, a group of cam rods 240 are slidably connected to the cam 230, and a group of cam rods 240 are respectively connected to the outer sides of the clamping rods 250.

[0026] refer to Figures 2 to 4 The upper part of the frame 110 is provided with two symmetrical support frames 111, each support frame 111 is provided with a center hole 112 in the middle, and two symmetrical fixing holes 113 are provided on both sides of each center hole 112, and a nut sleeve 114 is provided on the outer side of one of the fixing holes 113, and a spline shaft 150 is rotatably connected in the center hole 112, and a fixed shaft 120 is fixedly connected in each fixing hole 113, and a fixed shaft hole 121 is provided in the middle of the fixed shaft 120, and a waist groove 122 is axially provided in the fixed shaft 120, and an adjusting shaft 130 is slidably connected in each fixed shaft 120, and a group of adjusting rods 131 are evenly distributed on the adjusting shaft 130, and a group of adjusting rods 131 are slidably connected to the waist groove 122, and an adjusting rod groove 132 is provided on the inner side of each adjusting rod 131, and a nut 140 is rotatably connected in the nut sleeve 114, and the inner side of the nut 140 is threadedly connected to the corresponding end of the adjusting shaft 130, and each seeding device 200 is connected to a plow 160 at the lower part, and each plow 160 is fixed in the fixing hole 115 at the lower part of the frame 110.

[0027] The fixing seat 210 is a cylindrical box-shaped structure, with a fixing seat spline hole 211 in the middle of the fixing seat 210, an arc-shaped groove seed outlet 212 at the bottom outer side of the fixing seat 210, a funnel 215 at the outer side of the cylindrical surface of the fixing seat 210, the lower part of the funnel 215 penetrates the fixing seat 210, and a baffle 214 is provided at the connection between the inner side of the fixing seat 210 and the funnel 215. Seeds sown in a bag are placed in the funnel 215, and the seeds in the funnel 215 fall from 213 to the inner cavity of the fixing seat 210, and the baffle 214 can prevent the seeds that fall into the fixing seat 210 from flowing out from the seed outlet 212.

[0028] refer to Fig.11 A seed seat ring 261 is provided on the middle end face of the seed seat 260, and a diamond-shaped inner retaining ring 262 is provided in the middle of the seed seat 260. The seed seat ring 261 and the inner retaining ring 262 form a closed inner cavity. A seed outlet 263 for seeds to flow out is provided at the lower part of the seed seat ring 261, and two symmetrical seed seat fixing holes 264 are provided on the outer side of the seed seat 260.

[0029] refer to Fig.12 , Figures 5 to 10 The rotating seat 220 is a disc-shaped structure, and a rotating ring 221 is provided on the outer side of the lower seed seat 260. The outer side of the rotating ring 221 is rotatably connected to the inner side of the fixed seat 210, and the fixed seat 210 and the outer side of the rotating seat 220 form a seal. The rear side of the fixed seat 210 is fixedly connected to the end face of the lower seed seat ring 261, and the fixed seat 210 and the outer side of the lower seed seat 260 form a seal.

[0030] refer to Figures 5 to 10 A fixed seat spline hole 211 is provided in the middle of the fixed seat 210, a cam 230 is provided in the fixed seat spline hole 211, a cam spline shaft 231 in the middle of the cam 230 is slidably connected to the fixed seat spline hole 211, and a central shaft 226 is provided in the middle of the rotating seat 220, and the central shaft 226 is rotatably connected to the cam spline shaft hole 232 in the middle of the cam spline shaft 231.

[0031] refer to Figure 13 to Figure 14 The cam surface of the cam 230 is in a conical shape, and the axial cross section of the cam 230 is divided into five parts: a first cam surface 2301, a second cam surface 2302, a third cam surface 2303, a fourth cam surface 2304, and a fifth cam surface 2305.

[0032] refer to Figures 5 to 10 , Fig.12The rotating ring 221 of the rotating seat 220 is provided with a regular polygonal outer ring 222 on the inner side, and an outer ring hole 223 is provided on each surface of the outer ring 222. A seed clamping rod 250 is provided in each outer ring hole 223. A spoon-shaped clamping head 252 is provided on one side of the seed clamping rod 250, and a seed clamping rod thread 251 is provided on the other side of the seed clamping rod 250. Each seed clamping rod 250 is rotatably connected to the corresponding outer ring hole 223, and the clamping head 252 faces the bottom of the fixed seat 210. The clamping head 252 is made of elastic material, such as rubber or steel sheet.

[0033] refer to Figures 5 to 10 , Fig.12 , Fig.15 An inner ring 224 of a regular polygon with the same number of sides as the swivel ring 221 is provided on the inner side of the swivel ring 221 of the swivel seat 220, an inner ring hole 225 is provided on each surface of the inner ring 224, a cam rod 240 is provided in each inner ring hole 225, a cam rod head 241 is provided on one side of the cam rod 240, the cam rod head 241 is slidably connected to the surface of the cam 230, a cam rod screw hole 242 is provided on the other side of the cam rod 240, and the cam rod screw hole 242 is threadedly connected to the clamping rod thread 251.

[0034] refer to Figure 6 , Figure 7 A spring 270 is provided between the rotating seat 220 and each cam 230 , and the spring 270 is sleeved on both sides of the cam rod 240 and the clamping rod 250 , one side of the spring 270 abuts against the end face of the cam rod retaining ring 243 of the cam rod 240 , and the other side of the spring 270 abuts against the inner side of the outer ring 222 .

[0035] refer to Figure 1, a group of seed placement devices 200 are arranged outside the fixed shaft 120 and the spline shaft 150, the spline shaft 150 passes through the central shaft spline hole 227 in the middle of each rotating seat 220, and the two fixed shafts 120 pass through the seed placement seat fixing holes 264 on both sides of the seed placement seat 260 respectively, and the cam retaining ring 233 on one side of each cam 230 is stuck in the adjustment rod groove 132 on the corresponding side of the adjustment shaft 130. When the spline shaft 150 rotates, it drives each rotating seat 220 to rotate, and the rotation of the rotating seat 220 drives the cam rod 240 and the seed clamping rod 250 to rotate together, and the cam rod 240 slides on the surface of the cam 230. When the cam rod 240 slides on the surface of the No. 1 cam surface 2301, the cam rod screw hole 242 of the cam rod 240 is threadedly connected with the seed clamping rod thread 251 at the part close to the center of the cam 230. When the position of the cam rod 240 changes, it will drive the seed clamping rod 250 to rotate. At this time, the chuck 252 and the end face of the fixed seat 210 are directly connected. The first cam surface 2301 is the area where the seeds in the funnel 215 fall. When the cam rod 240 slides in the first cam surface 2301 area, the seeds that fall on the end surface of the clamp 252 and the fixed seat 210 will be taken away by the clamp 252. When the cam rod 240 slides to the second cam surface 2302 area, the second cam surface 2302 drives the cam rod 240 to move outward, and the cam rod 240 drives the seed clamping rod 250 to rotate slowly, and the gap between the clamp 252 and the end surface of the fixed seat 210 becomes smaller. When the cam rod 240 slides to the third cam surface 2303, the seed clamping rod 250 maintains the current state and moves upward with the seeds. When the cam rod 240 slides to the fourth cam surface 2304, the clamping head 252 enters the seed outlet 212 area of ​​the fixed seat 210, and the seeds in the clamping head 252 enter the space formed by the fixed seat 210 and the seed lowering seat 260 from the baffle plate 214. The seeds entering the seed lowering seat 260 fall from the seed outlet 263 at the lower part of the seed lowering seat 260. When the sowing process is interrupted or multiple seeds are sown, the nut 14 is turned. 0, the nut 140 drives the adjusting shaft 130 to move, and the adjusting shaft 130 drives a group of cams 230 to move. When the cam 230 moves, since the cam surface of the cam 230 is conical, the cam 230 will drive a group of cam rods 240 to move at the same time. A group of cam rods 240 drives a group of seed clamping rods 250 to rotate, so that the gap between the chuck 252 and the end face of the fixed seat 210 changes, so that the chuck 252 can adapt to the changes in seed size or gap, ensuring that the chuck 252 can clamp a seed each time.

[0036] An operating method of a forestry tree seedling sowing device, when in use, in the first step, a motor vehicle pulls forward, seeds are stored in a hopper 215, and the motor vehicle transmits power to a spline shaft 150. In the second step, when the device moves forward, a plow 160 plows a sowing furrow on the ground, and the spline shaft 150 rotates to drive each rotating seat 220 to rotate, and the rotation of the rotating seat 220 drives the cam rod 240 and the seed clamping rod 250 to rotate together, and the cam rod 240 slides on the surface of the cam 230, and the cam 230 drives the seed clamping rod 250 to bring the seeds dropped from the hopper 215 to the seed outlet 212 on the upper part of the fixed seat 210, and the seeds fall from the seed outlet 212 to the lower seed seat 260, and fall to The seeds in the seed seat 260 fall into the sowing furrow from the seed outlet 263. When the seeds are broken or there are multiple seeds during the sowing process, the nut 140 is rotated, and the nut 140 drives the adjusting shaft 130 to move, and the adjusting shaft 130 drives a group of cams 230 to move. When the cam 230 moves, since the cam surface of the cam 230 is conical, the cam 230 will drive a group of cam rods 240 to move at the same time, and a group of cam rods 240 drive a group of seed clamping rods 250 to rotate, so that the gap between the chuck 252 and the end face of the fixed seat 210 changes, so that the chuck 252 can adapt to the changes in seed size or gap, ensuring that the chuck 252 can clamp a seed every time.

[0037] The axial cross section of the cam 230 of the present invention is divided into five parts: a first cam surface 2301, a second cam surface 2302, a third cam surface 2303, a fourth cam surface 2304, and a fifth cam surface 2305. The cam rod 240 is slidably connected to the cam 230. The cam rod 240 and the seed clamping rod 250 are threadedly connected. When the cam rod 240 slides on the surface of the cam 230, the position of the cam rod 240 changes. When the cam 230 drives the cam rod 240 to move, the cam rod 240 drives the seed clamping rod 250 to rotate, and the gap between the chuck 252 and the end face of the fixed seat 210 changes, thereby realizing the seed taking action of the chuck 252. The cam surface of the cam 230 is a conical shape. When the cam 230 moves along the axial direction, the cam 230 will drive a group of cam rods 240 to move simultaneously. A group of cam Rod 240 drives a group of seed clamping rods 250 to rotate, so that the gap between the clamp 252 and the end face of the fixed seat 210 changes, so that the clamp 252 can adapt to the change of seed size or gap, ensuring that the clamp 252 can clamp a seed each time, solving the problem of double seeds or broken seeds caused by spring relaxation when relying on spring clamping seeds, solving the problem that the seed drill can only be replaced but cannot be repaired after the seed plate, cam and finger clamp are worn, solving the problem that there are many debris sticking inside the seed drill, and the tree seeds will also have double seeds or broken seeds, and solving the problem that each finger clamping seeder is only suitable for tree seeds within a certain diameter range and has poor adaptability. The clamp 252 can not only ensure that the tree seeds can be clamped, but also increase the clamping range of the tree seeds, while protecting the seeds from damage.

Claims

1. A forestry tree seedling raising and sowing equipment, characterized in that : It comprises a machine body (100) and a seeding device (200), wherein the machine body (100) comprises a frame (110), a spline shaft (150) and two fixed shafts (120) are rotatably connected on the frame (110), an adjusting shaft (130) is connected in the middle of the fixed shaft (120), and the adjusting shaft (130) is connected to a nut (140), and the seeding device (200) comprises a fixed seat (210), two sides of the fixed seat (210) are respectively connected to a rotating seat (220) and a seeding seat (260), a cam (230) is connected in the middle of the fixed seat (210), a group of cam rods (240) are connected in the middle of the rotating seat (220), and a group of cam rods (240) and the cam (230) are slidably connected. , a group of cam rods (240) are respectively connected to the seed clamping rods (250) on the outside; the upper part of the frame (110) is provided with two symmetrical support frames (111); each support frame (111) is provided with a center hole (112) in the middle; each center hole (112) is provided with two symmetrical fixing holes (113) on both sides; a nut sleeve (114) is provided on the outside of the fixing hole (113); the center hole (112) is rotatably connected to the spline shaft (150); each fixing hole (113) is fixedly connected to a fixed shaft (120); a fixed shaft hole (121) is provided in the middle of the fixed shaft (120); a waist groove (122) is provided axially of the fixed shaft (120); each fixed shaft (120) is slidably connected to the spline shaft (150); The adjusting shaft (130) has a group of adjusting rods (131) evenly distributed on the adjusting shaft (130). The group of adjusting rods (131) is slidably connected to the waist groove (122). The inner side of each adjusting rod (131) is provided with an adjusting rod groove (132). The nut (140) is rotatably connected in the nut sleeve (114). The inner side of the nut (140) is threadedly connected to the end of the corresponding adjusting shaft (130). The lower part of each seeding device (200) is connected to a plow (160). Each plow (160) is fixed in a fixing hole (115) at the lower part of the frame (110). The fixing seat (210) is a cylindrical box-shaped structure. The middle of the fixing seat (210) is provided with a fixing seat spline hole (211). The fixing seat ( A circular arc groove seed outlet (212) is provided on the outer side of the bottom of the fixed seat (210); a funnel (215) is provided on the outer side of the cylindrical surface of the fixed seat (210); the lower part of the funnel (215) penetrates the fixed seat (210); a baffle (214) is provided at the connection between the inner side of the fixed seat (210) and the funnel (215); a seed lowering seat ring (261) is provided on the middle end surface of the seed lowering seat (260); a diamond-shaped inner retaining ring (262) is provided in the middle of the seed lowering seat (260); the seed lowering seat ring (261) and the inner retaining ring (262) form a closed inner cavity; a seed outlet (263) for seeds to flow out is provided on the lower part of the seed lowering seat ring (261); and two symmetrical seed lowering seat fixing holes (264) are provided on the outer side of the seed lowering seat (260);The rotating seat (220) is a disc-shaped structure. A rotating ring (221) is provided on the outer side of the lower seed seat (260). The outer side of the rotating ring (221) is rotatably connected to the inner side of the fixed seat (210). The rear side of the fixed seat (210) is fixedly connected to the end face of the lower seed seat ring (261). A fixed seat spline hole (211) is provided in the middle of the fixed seat (210). A cam (230) is provided in the fixed seat spline hole (211). The cam spline shaft (231) in the middle of the cam (230) is slidably connected to the fixed seat spline hole (211). A central shaft (226) is provided in the middle of the rotating seat (220). The central shaft (226) is rotatably connected to the cam spline shaft hole (232) in the middle of the cam spline shaft (231). The cam surface of the cam (230) is conical. ) is divided into five parts, namely, a first cam surface (2301), a second cam surface (2302), a third cam surface (2303), a fourth cam surface (2304), and a fifth cam surface (2305); a regular polygonal outer ring (222) is provided on the inner side of the rotating ring (221) of the rotating seat (220); an outer ring hole (223) is provided on each surface of the outer ring (222); a seed clamping rod (250) is provided in each outer ring hole (223); a spoon-shaped clamping head (252) is provided on one side of the seed clamping rod (250); a seed clamping rod thread (251) is provided on the other side of the seed clamping rod (250); each seed clamping rod (250) is rotatably connected to the corresponding outer ring hole (223), and the clamping head (252) faces the bottom of the fixed seat (210). ; 2. A forestry tree seedling raising and sowing equipment according to claim 1, characterized in that An inner ring (224) having a regular polygonal shape having the same number of sides as the inner ring (221) is provided on the inner side of the rotating ring (221) of the rotating seat (220), an inner ring hole (225) is provided on each surface of the inner ring (224), a cam rod (240) is provided in each inner ring hole (225), a cam rod head (241) is provided on one side of the cam rod (240), the cam rod head (241) is slidably connected to the surface of the cam (230), a cam rod screw hole (242) is provided on the other side of the cam rod (240), and the cam rod screw hole (242) is threadedly connected to the thread (251) of the clamping rod.

3. A forestry tree seedling raising and sowing equipment according to claim 1, characterized in that A spring (270) is provided between the rotating seat (220) and each cam (230), and the spring (270) is sleeved on both sides of the cam rod (240) and the seed clamping rod (250). One side of the spring (270) abuts against the end surface of the cam rod retaining ring (243) of the cam rod (240), and the other side of the spring (270) abuts against the inner side of the outer ring (222).

4. The forestry tree seedling raising and sowing equipment according to claim 1 is characterized in that A group of seed placement devices (200) are provided outside the fixed shaft (120) and the spline shaft (150); the spline shaft (150) passes through the central shaft spline hole (227) in the middle of each rotating seat (220); the two fixed shafts (120) respectively pass through the seed placement seat fixing holes (264) on both sides of the seed placement seat (260); and the cam retaining ring (233) on one side of each cam (230) is clamped in the adjustment rod groove (132) on one side of the corresponding adjustment shaft (130).

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