A high-efficiency soil loosening device for forestry seedling cultivation

The crushing blade group and crushing roller structure of the high-efficiency soil loosening device for forestry seedling cultivation solves the problem of insufficient soil loosening of traditional soil loosening devices, achieves rapid loosening and uniformity of the soil, promotes forest growth, and improves seedling cultivation efficiency and soil environmental quality.

CN120304061BActive Publication Date: 2025-09-30JIANGXI UNIV OF SCI & TECH
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510805314.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-17
Publication Date
2025-09-30
Estimated Expiration
2045-06-17

AI Technical Summary

Technical Problem

Traditional soil loosening devices result in insufficient soil loosening in forestry seedling cultivation, resulting in a large amount of unbroken soil clods remaining, which hinders full contact between seeds and soil, restricts root extension, and affects tree growth. In addition, the soil has poor aeration, and oxygen and water are unevenly distributed, which increases manual labor intensity and seedling cultivation cycle.

Method used

An efficient soil loosening device for forestry seedling cultivation is designed, which adopts a crushing blade group and a crushing roller structure. The crushing blade group gradually crushes the soil, and the partition is used to divide the soil into planting areas. The crushing roller is used to further crush and divide the soil into blocks to ensure the looseness and uniformity of the soil. The rake nail structure is used to effectively handle stones to achieve rapid loosening and uniformity of the soil.

Benefits of technology

It achieves sufficient looseness and uniformity of the soil, increases the contact rate between tree seeds and soil, promotes root extension, improves soil aeration and nutrient absorption, reduces the labor intensity of artificial soil crushing, and improves seedling efficiency and soil environmental quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120304061B_ABST
    Figure CN120304061B_ABST
Patent Text Reader

Abstract

The present invention belongs to the field of soil loosening technology and discloses an efficient soil loosening device for forestry seedling cultivation, comprising a frame and a drive shaft, wherein the inner wall of the frame is fixedly connected to a support plate, the bottom of the support plate is fixedly connected to a plurality of partitions, the end faces of the partitions are triangular structures, the inner wall of the frame is rotatably connected to a plurality of extension shafts, the ends of the extension shafts extend to the inner side of the frame, the ends of the extension shafts are fixedly connected to output shafts, the output shafts are respectively located between two adjacent partitions, and the outer walls of the output shafts are all fixedly connected to a crushing blade group. The present invention can fully and quickly crush the soil, loosening the soil, avoiding subsequent manual crushing of the soil, and providing a good soil environment for the growth of trees. At the same time, the gradually increasing crushing force can achieve a more thorough crushing effect, and can also prevent the soil from producing excessively large particles or lumps due to excessive single crushing force.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of soil loosening, and more particularly to a high-efficiency soil loosening device for forestry seedling cultivation. Background Art

[0002] Forestry seedling cultivation is a basic link in forestry development. It cultivates forest seeds and seedlings through artificial or semi-artificial methods to adapt to specific geographical and climatic conditions, ensure the healthy growth of forestry crops, and ultimately obtain high-quality forest products.

[0003] In forestry seedling cultivation, the soil loosening device loosens the soil structure, improves the soil's ventilation and air permeability, and its ability to retain water and fertilizer, creating favorable conditions for seed germination and crop growth.

[0004] Traditional soil loosening devices generally cut the soil through the rigid structure on the loosening plow. Although it can break the plow bottom layer, a large number of unbroken soil clods remain in the soil after the operation, resulting in insufficient soil loosening. The lumpy soil also hinders the full contact between forest seeds or seedlings and the soil. At the same time, the root system is hindered from extending in the lumpy soil, resulting in slow crop growth or uneven nutrient absorption. In view of this, an efficient soil loosening device for forestry seedling cultivation is designed. Summary of the Invention

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an efficient soil loosening device for forestry seedling cultivation, which can fully and quickly crush the soil, loosen the soil, avoid subsequent manual crushing of the soil, and provide a good soil environment for the growth of trees.

[0006] In order to solve the above technical problems, the present invention proposes an efficient soil loosening device for forestry seedling cultivation, comprising a frame and a drive shaft, wherein the inner wall of the frame is fixedly connected to a support plate, and the bottom of the support plate is fixedly connected to a plurality of partitions, and the end faces of the partitions are triangular structures;

[0007] The inner wall of the frame is rotatably connected to a plurality of extension shafts, the ends of the extension shafts extend to the inner side of the frame, the ends of the extension shafts are fixedly connected to output shafts, the output shafts are respectively located between two adjacent partitions, and the outer walls of the output shafts are fixedly connected to a crushing blade group;

[0008] The crushing leaf group includes a plurality of crushing leaves, and the diameters of the plurality of crushing leaves gradually increase;

[0009] Both ends of the drive shaft are rotatably connected to support blocks, the end faces of the support blocks are fixedly connected to the frame, the outer wall of the drive shaft is fixedly connected to multiple first bevel gears, the outer walls of the extension shaft are fixedly connected to second bevel gears, and the first bevel gears are meshed with the second bevel gears.

[0010] Preferably, a feed hole is opened on the top of the frame, a protective cover is fixedly connected to the top of the frame, the feed hole is located below the protective cover, and a warehouse door is detachably installed on the outer wall of the protective cover.

[0011] Preferably, a storage box is fixedly connected to the top of the protective cover, and a discharge barrel is sleeved on the inner wall of the storage box. The inner walls at both ends of the discharge barrel are fixedly connected to sealing disks, and the end faces of the sealing disks are fixedly connected to rotating shafts, and the ends of the rotating shafts pass through the protective cover and are rotatably connected to it.

[0012] Preferably, the outer wall of the discharge barrel is provided with a plurality of material troughs, the bottom of the inner wall of the material trough is provided with a sliding hole, the inner wall of the sliding hole is provided with a fixing hole, the inner wall of the discharge barrel is provided with a plurality of frame rods, the ends of the frame rods are respectively fixedly connected to the fixing holes, the outer walls of the frame rods are slidably connected with sliding sleeves, the sliding sleeves are slidably connected to the inner walls of the sliding holes, the outer walls of the sliding sleeves are fixedly connected with counterweights, the ends of the sliding sleeves are fixedly connected with push plates, and the push plates are slidably connected to the inner walls of the material trough.

[0013] Preferably, the inner wall of the frame is rotatably connected to a crushing roller, the shaft end of the crushing roller and the end of the rotating shaft are fixedly connected to a first synchronous wheel, the two first synchronous wheels are connected by a synchronous belt transmission, the outer wall of the frame is fixedly connected to a second machine base, the outer wall of the second machine base is fixedly connected to a second motor, and the output end of the second motor is fixedly connected to the shaft end of the crushing roller.

[0014] Preferably, the crushing roller shaft end and the driving shaft end are both fixedly connected with a second synchronous wheel, and the two second synchronous wheels are connected via a synchronous belt transmission.

[0015] Preferably, the outer wall of the frame is fixedly connected to a fixing plate, a scraper is provided under the fixing plate, two sliding rods are fixedly connected to the top of the scraper, the ends of the sliding rods pass through the fixing plate and are slidably connected thereto, an adjusting screw is threadedly connected to the top of the fixing plate, and the end of the adjusting screw is rotatably connected to the scraper.

[0016] Preferably, a connecting hole is opened on the top of the frame, mounting arms are fixedly connected on both sides of the frame, two support plates are fixedly connected to the top of the frame, the outer walls of the two support plates are rotatably connected to swing arms, one of the outer walls of the support plates is fixedly connected to a first machine base, a first motor is fixedly connected to the top of the first machine base, and the output end of the first motor is fixedly connected to the swing arm.

[0017] Preferably, it also includes a connecting arm, which is rotatably connected to the swing arm, and the end of the connecting arm passes through the connecting hole and extends to the bottom of the frame. The end of the connecting arm is fixedly connected to a mounting plate, and the outer wall of the mounting plate is fixedly connected to a plurality of rake nails, and a connecting rod is fixedly connected between two adjacent rake nails. The inner walls of the connecting arms are rotatably connected to support arms, and the end of the support arm is rotatably connected to a bracket, and the bracket is fixedly connected to the frame.

[0018] Preferably, a groove is provided on the outside of the rake nail, a corner of the inner wall of the groove close to the arc groove is a right angle, and an arc groove is provided on the tip of the rake nail.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the present invention, when the crushing roller rotates, the driving shaft is driven to rotate through the second synchronous wheel, the driving shaft drives the extension shaft to rotate through the first bevel gear and the second bevel gear, the output shaft is driven to rotate through the extension shaft, and the crushing blade group is driven to rotate through the output shaft. During the movement of the partition, the soil is divided into segments to form different planting areas. After the soil enters the two adjacent partitions, it is crushed in turn by multiple crushing leaves with increasing diameters, which can fully and quickly crush the soil and make the soil loose, avoiding subsequent manual crushing of the soil, and providing a good soil environment for the growth of trees. At the same time, the gradually enhanced crushing force can achieve a more thorough crushing effect, and can also prevent the soil from producing excessively large particles or lumps due to excessive single crushing force. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the following is a brief introduction to the drawings required for use in the implementation methods. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 Schematic diagram of the overall structure of the device of the present invention;

[0023] Figure 2 Schematic diagram of the bottom structure of the device of the present invention;

[0024] Figure 3 It is a schematic diagram of the overall structure of the frame of the present invention;

[0025] Figure 4 This is a schematic diagram of the installation structure of the rake nail of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the rake nail of the present invention;

[0027] Figure 6Schematic diagram of the installation structure of the partition of the present invention;

[0028] Figure 7 This is a schematic diagram of the installation structure of the crushing roller of the present invention;

[0029] Figure 8 This is a schematic diagram of the installation structure of the crushing blade group of the present invention;

[0030] Figure 9 Schematic diagram of the installation structure of the material storage box of the present invention;

[0031] Figure 10 It is a partial structural schematic diagram of the blanking barrel of the present invention;

[0032] Figure 11 For the present invention Figure 10 Enlarged view of point A in the middle;

[0033] Figure 12 Schematic diagram of the installation structure of the rack of the present invention;

[0034] Figure 13 This is a schematic diagram of the installation structure of the push plate of the present invention;

[0035] Figure 14 It is a schematic diagram of the installation structure of the scraper of the present invention.

[0036] Explanation of the reference numbers in the figure: 1. frame; 2. feed hole; 3. connection hole; 4. support plate; 5. first base; 6. first motor; 7. swing arm; 8. connection arm; 9. mounting plate; 10. rake nail; 11. connection rod; 12. groove; 13. arc groove; 14. support arm; 15. bracket; 16. crushing roller; 17. second base; 18. second motor; 19. first synchronous wheel; 20. second synchronous wheel; 21. protective cover; 22. storage box; 23. rotating shaft; 24 , unloading barrel; 25, material trough; 26, sliding hole; 27, fixing hole; 28, sealing disk; 29, frame rod; 30, sliding sleeve; 31, counterweight block; 32, push plate; 33, warehouse door; 34, support plate; 35, partition; 36, support block; 37, drive shaft; 38, output shaft; 39, extension shaft; 40, first bevel gear; 401, second bevel gear; 41, crushing leaf group; 42, fixing plate; 43, scraper; 44, sliding rod; 45, adjusting screw; 46, mounting arm. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The specific embodiments of the present invention are described in detail below in conjunction with the drawings in the specification.

[0038] In forestry seedling cultivation, traditional soil loosening devices use rigid structures to cut through the soil, leaving behind a large number of unbroken clumps. These clumps hinder seed-soil contact, reduce germination rates, and restrict root expansion, impacting crop growth. Furthermore, traditional soil loosening devices have limited soil fragmentation capabilities, making it difficult to create a uniform, loose structure. This results in poor soil aeration and uneven oxygen and moisture distribution, hindering root respiration and nutrient absorption. Clumps of soil must be manually broken down, increasing labor intensity, reducing efficiency, extending the seedling cultivation cycle, and driving up labor costs.

[0039] The invention provides a high-efficiency soil loosening device for forestry seedling cultivation, which can gradually crush the soil, ensure the looseness and uniformity of the soil, and provide a high-efficiency soil loosening solution for forestry seedling cultivation.

[0040] Specifically:

[0041] like Figure 1 、 Figure 2 、 Figure 3 and Figure 8 As shown, a high-efficiency soil loosening device for forestry seedling cultivation includes a frame 1 and a drive shaft 37. A support plate 34 is fixedly connected to the inner wall of the frame 1. A plurality of partitions 35 are fixedly connected to the bottom of the support plate 34. The end faces of the partitions 35 are triangular structures.

[0042] The combination of the partition 35 and the crushing blade group 41 achieves fine processing of the soil; the partition 35 divides the soil into different planting areas, which is helpful for subsequent planting planning;

[0043] The inner wall of the frame 1 is rotatably connected to a plurality of extension shafts 39, the ends of the extension shafts 39 extend to the inner side of the frame 1, the ends of the extension shafts 39 are fixedly connected to the output shafts 38, the output shafts 38 are respectively located between two adjacent partitions 35, and the outer walls of the output shafts 38 are fixedly connected to the crushing blade groups 41;

[0044] The crushing blade group 41 includes a plurality of crushing blades, and the diameters of the plurality of crushing blades gradually increase. The crushing blade group 41 is designed with a diameter that increases gradually, which can gradually crush the soil, ensure the looseness and uniformity of the soil, and provide a good soil environment for the growth of trees.

[0045] Both ends of the drive shaft 37 are rotatably connected to support blocks 36, and the end faces of the support blocks 36 are fixedly connected to the frame 1. The outer wall of the drive shaft 37 is fixedly connected to multiple first bevel gears 40, and the outer walls of the extension shafts 39 are fixedly connected to second bevel gears 401, and the first bevel gears 40 are meshed with the second bevel gears 401.

[0046] like Figure 9 As shown, a feed hole 2 is opened on the top of the frame 1, and a protective cover 21 is fixedly connected to the top of the frame 1. The feed hole 2 is located below the protective cover 21, and a warehouse door 33 is detachably installed on the outer wall of the protective cover 21.

[0047] like Figure 9 As shown, a storage box 22 is fixedly connected to the top of the protective cover 21, and a discharge barrel 24 is sleeved on the inner wall of the storage box 22. The inner walls of both ends of the discharge barrel 24 are fixedly connected to sealing disks 28, and the end faces of the sealing disks 28 are fixedly connected to the rotating shaft 23. The ends of the rotating shaft 23 pass through the protective cover 21 and are rotatably connected to it.

[0048] like Figure 10-13 As shown, the outer wall of the lower barrel 24 is provided with a plurality of material troughs 25, the bottom of the inner wall of the material trough 25 is provided with a sliding hole 26, the inner wall of the sliding hole 26 is provided with a fixing hole 27, the inner wall of the lower barrel 24 is provided with a plurality of rack rods 29, the ends of the rack rods 29 are respectively fixedly connected to the fixing holes 27, the fixing holes 27 are used to fix and support the rack rods 29, the outer walls of the rack rods 29 are slidably connected with sliding sleeves 30, the sliding sleeves 30 are slidably connected to the inner wall of the sliding hole 26, and the sliding hole 26 is used to slide the sliding sleeves 30. The outer wall of the sliding sleeve 30 is fixedly connected with a counterweight 31, and the end of the sliding sleeve 30 is fixedly connected with a push plate 32, which is slidably connected to the inner wall of the trough 25; the fertilizer is accurately applied through the rotation of the discharge barrel 24 and the action of the push plate 32, and the rotation of the discharge barrel 24 is linked with the crushing roller 16 to ensure that the fertilizer is applied immediately after the soil is crushed, thereby improving the utilization rate of the fertilizer; the design of the push plate 32 utilizes the gravity of the counterweight 31 to realize the automatic push-out of the fertilizer.

[0049] like Figure 6 and Figure 7 As shown, the inner wall of the frame 1 is rotatably connected to a crushing roller 16, the shaft end of the crushing roller 16 and the end of the rotating shaft 23 are fixedly connected to a first synchronous wheel 19, the two first synchronous wheels 19 are connected by a synchronous belt transmission, the outer wall of the frame 1 is fixedly connected to a second machine base 17, the outer wall of the second machine base 17 is fixedly connected to a second motor 18, and the output end of the second motor 18 is fixedly connected to the shaft end of the crushing roller 16; the setting of the crushing roller 16 further crushes and divides the soil, which is particularly suitable for processing compacted soil or soil containing large soil clods, helps to improve the soil structure, and facilitates the growth of tree roots.

[0050] like Figure 7 and Figure 8As shown, the shaft end of the crushing roller 16 and the end of the driving shaft 37 are both fixedly connected with the second synchronous wheels 20, and the two second synchronous wheels 20 are connected through a synchronous belt transmission.

[0051] like Figure 14 As shown, a fixing plate 42 is fixedly connected to the outer wall of the frame 1, a scraper 43 is provided below the fixing plate 42, two slide rods 44 are fixedly connected to the top of the scraper 43, the ends of the slide rods 44 pass through the fixing plate 42 and are slidably connected thereto, an adjusting screw 45 is threadedly connected to the top of the fixing plate 42, and the end of the adjusting screw 45 is rotatably connected to the scraper 43.

[0052] like Figure 1 and Figure 4 As shown, a connecting hole 3 is opened on the top of the frame 1, and mounting arms 46 are fixedly connected on both sides of the frame 1. Two support plates 4 are fixedly connected to the top of the frame 1, and the outer walls of the two support plates 4 are rotatably connected to the swing arms 7. The outer wall of one of the support plates 4 is fixedly connected to the first machine base 5, and the top of the first machine base 5 is fixedly connected to the first motor 6, and the output end of the first motor 6 is fixedly connected to the swing arm 7.

[0053] like Figure 4 and Figure 5 As shown, the device also includes a connecting arm 8, which is rotatably connected to the swing arm 7, and the end of the connecting arm 8 passes through the connecting hole 3 and extends to the bottom of the frame 1. The end of the connecting arm 8 is fixedly connected to a mounting plate 9, and a plurality of rake nails 10 are fixedly connected to the outer wall of the mounting plate 9. A connecting rod 11 is fixedly connected between two adjacent rake nails 10. The inner wall of the connecting arm 8 is rotatably connected to a support arm 14, and the end of the support arm 14 is rotatably connected to a bracket 15. The bracket 15 is fixedly connected to the frame 1, and a groove 12 is provided on the outside of the rake nail 10. The corner of the inner wall of the groove 12 close to the arc groove 13 is a right angle, and the tip of the rake nail 10 is provided with an arc groove 13; the rake nail 10 is inserted into the soil by rotation, which can not only effectively loosen the soil, but also, when encountering stones, the arc groove 13 at the tip of the rake nail 10 can be used to make the stones tilted, so that the rake nail 10 can continue to penetrate the soil. This reduces the obstruction of the stones to the loosening process, improves the loosening efficiency, and can pick out the stones from the soil.

[0054] Working principle: The frame 1 is installed on the agricultural machinery vehicle through the mounting arm 46, and the frame 1 is driven to move by the agricultural machinery vehicle. The first motor 6 drives the swing arm 7 to rotate, and the swing arm 7 drives the connecting arm 8 to rotate back and forth. During the rotation of the connecting arm 8, the support arm 14 limits the support of the connecting arm 8. At this time, the rake nail 10 can be inserted into the soil at an angle and pick up the soil. When the rake nail 10 is inserted into the soil, its tip contacts the stone. When the stone cannot be broken, the arc groove 13 at the tip can squeeze the stone, causing the stone to tilt, thereby allowing the tip of the rake nail 10 to be smoothly inserted into the soil under the stone. When the rake nail 10 is pulled out of the soil, the groove 12 can hook the stone out of the soil.

[0055] When the fertilizer is put into the storage box 22, the second motor 18 drives the crushing roller 16 to rotate, and the soil picked up is crushed and divided into pieces by the crushing roller 16. The crushing roller 16 drives the lower barrel 24 to rotate through the first synchronous wheel 19. At this time, the fertilizer enters the trough 25. When the lower barrel 24 rotates, it drives the frame rod 29 to rotate. When the lower barrel 24 drives the fertilizer to rotate to the bottom of the storage box 22, under the action of the gravity of the counterweight 31, the sliding sleeve 30 drives the outer wall of the frame rod 29 to slide toward its end, and the sliding sleeve 30 drives the pushing plate 32 to slide outward along the inner wall of the trough 25, so as to push the fertilizer inside the trough 25 out so that the fertilizer can be fully mixed with the soil. When the trough 25 rotates to the inside of the storage box 22, the counterweight 31 drives the pushing plate 32 to slide to the bottom of the inner wall of the trough 25 through the sliding sleeve 30, reserving space for the entry of the fertilizer.

[0056] When the crushing roller 16 rotates, the second synchronous wheel 20 drives the drive shaft 37 to rotate, the drive shaft 37 drives the extension shaft 39 to rotate through the first bevel gear 40 and the second bevel gear 401, the extension shaft 39 drives the output shaft 38 to rotate, and the output shaft 38 drives the crushing blade group 41 to rotate. During the movement of the partition 35, the soil is divided into segments to form different planting areas. After the soil enters two adjacent partitions 35, it is crushed by multiple crushing blades with increasing diameters in sequence, which can fully and quickly crush the soil and make the soil loose.

[0057] The scraper 43 is driven to move by rotating the adjusting screw 45, and the height of the scraper 43 is adjusted. The scraper 43 is limited by the locking nut on the adjusting screw 45. When the frame 1 moves, the scraper 43 is driven to move, and the top of the soil is leveled by the scraper 43, making the ground more flat after planting.

[0058] 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. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient soil loosening device for forestry seedling cultivation, characterized in that: include: A vehicle frame (1), wherein a support plate (34) is fixedly connected to the inner wall of the vehicle frame (1), a plurality of partition plates (35) are fixedly connected to the bottom of the support plate (34), and the end faces of the partition plates (35) are triangular structures; The inner wall of the frame (1) is rotatably connected to a plurality of extension shafts (39), the ends of the extension shafts (39) extend to the inner side of the frame (1), the ends of the extension shafts (39) are fixedly connected to output shafts (38), the output shafts (38) are respectively located between two adjacent partitions (35), and the outer walls of the output shafts (38) are fixedly connected to a crushing blade group (41); The crushing leaf group (41) includes a plurality of crushing leaves, and the diameters of the plurality of crushing leaves gradually increase; A drive shaft (37), both ends of the drive shaft (37) are rotatably connected to support blocks (36), the end faces of the support blocks (36) are fixedly connected to the vehicle frame (1), a plurality of first bevel gears (40) are fixedly connected to the outer wall of the drive shaft (37), and the outer walls of the extension shafts (39) are fixedly connected to second bevel gears (401), and the first bevel gears (40) are meshed with the second bevel gears (401); Two support plates (4) are fixedly connected to the top of the vehicle frame (1), and the outer walls of the two support plates (4) are rotatably connected to swing arms (7), wherein the outer wall of one of the support plates (4) is fixedly connected to a first machine base (5), and the top of the first machine base (5) is fixedly connected to a first motor (6), and the output end of the first motor (6) is fixedly connected to the swing arm (7); A connecting arm (8) is rotatably connected to the swing arm (7), an end of the connecting arm (8) passes through the connecting hole (3) and extends to the bottom of the vehicle frame (1), the end of the connecting arm (8) is fixedly connected to a mounting plate (9), a plurality of rake nails (10) are fixedly connected to the outer wall of the mounting plate (9), an arc groove (13) is formed at the tip of the rake nail (10), a groove (12) is formed on the outside of the rake nail (10), and a corner of the inner wall of the groove (12) close to the arc groove (13) is a right angle.

2. The efficient soil loosening device for forestry seedling cultivation according to claim 1, characterized in that: A feed hole (2) is provided on the top of the vehicle frame (1), a protective cover (21) is fixedly connected to the top of the vehicle frame (1), the feed hole (2) is located below the protective cover (21), and a warehouse door (33) is detachably mounted on the outer wall of the protective cover (21).

3. The efficient soil loosening device for forestry seedling cultivation according to claim 2, characterized in that: The top of the protective cover (21) is fixedly connected to a material storage box (22), the inner wall of the material storage box (22) is sleeved with a material discharge barrel (24), the inner walls of both ends of the material discharge barrel (24) are fixedly connected to sealing disks (28), the end faces of the sealing disks (28) are fixedly connected to a rotating shaft (23), and the ends of the rotating shaft (23) pass through the protective cover (21) and are rotatably connected thereto.

4. The efficient soil loosening device for forestry seedling cultivation according to claim 3, characterized in that: The outer wall of the material discharge barrel (24) is provided with a plurality of material troughs (25), the bottom of the inner wall of each material trough (25) is provided with a sliding hole (26), the inner wall of each sliding hole (26) is provided with a fixing hole (27), the inner wall of each material discharge barrel (24) is provided with a plurality of rack rods (29), the ends of each rack rod (29) are fixedly connected to the fixing holes (27), the outer walls of each rack rod (29) are slidably connected to a sliding sleeve (30), the sliding sleeve (30) is slidably connected to the inner wall of the sliding hole (26), the outer wall of each sliding sleeve (30) is fixedly connected to a counterweight (31), the end of each sliding sleeve (30) is fixedly connected to a push plate (32), and the push plate (32) is slidably connected to the inner wall of the material trough (25).

5. The efficient soil loosening device for forestry seedling cultivation according to claim 1, characterized in that: The inner wall of the frame (1) is rotatably connected to a crushing roller (16), the shaft end of the crushing roller (16) and the end of the rotating shaft (23) are both fixedly connected to a first synchronous wheel (19), and the two first synchronous wheels (19) are connected via a synchronous belt transmission. The outer wall of the frame (1) is fixedly connected to a second machine base (17), the outer wall of the second machine base (17) is fixedly connected to a second motor (18), and the output end of the second motor (18) is fixedly connected to the shaft end of the crushing roller (16).

6. The efficient soil loosening device for forestry seedling cultivation according to claim 5, characterized in that: The shaft end of the crushing roller (16) and the end of the driving shaft (37) are both fixedly connected to a second synchronous wheel (20), and the two second synchronous wheels (20) are connected via a synchronous belt transmission.

7. The efficient soil loosening device for forestry seedling cultivation according to claim 1, characterized in that: The outer wall of the vehicle frame (1) is fixedly connected to a fixing plate (42), a scraper (43) is provided below the fixing plate (42), two slide bars (44) are fixedly connected to the top of the scraper (43), the ends of the slide bars (44) both pass through the fixing plate (42) and are slidably connected thereto, an adjusting screw (45) is threadedly connected to the top of the fixing plate (42), and the end of the adjusting screw (45) is rotatably connected to the scraper (43).

8. The efficient soil loosening device for forestry seedling cultivation according to claim 1, characterized in that: A connection hole (3) is provided on the top of the vehicle frame (1), and mounting arms (46) are fixedly connected to both sides of the vehicle frame (1).

9. The efficient soil loosening device for forestry seedling cultivation according to claim 1, characterized in that: A connecting rod (11) is fixedly connected between two adjacent rake nails (10), the inner wall of the connecting arm (8) is rotatably connected to a support arm (14), the end of the support arm (14) is rotatably connected to a bracket (15), and the bracket (15) is fixedly connected to the vehicle frame (1).