CN216873817U

CN216873817U - Forestry seedling planting is with earthing device that digs pit

Info

Publication number: CN216873817U
Application number: CN202220720614.7U
Authority: CN
Inventors: 马洪亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-07-05
Anticipated expiration: 2032-03-29

Abstract

The utility model relates to the technical field of seedling planting, in particular to a pit digging and soil covering device for forestry seedling planting, which adopts mechanical pit digging and soil covering to reduce the labor intensity of workers and improve the working efficiency; including the tractor, a mounting bracket, cover the soil circle, the otic placode, the swing hydro-cylinder, go up the mounting bracket, the axle of digging a pit, rotating blade and lift cylinder, the mounting bracket is connected with the lift at tractor rear portion, be provided with the otic placode on the preceding outer wall that covers the soil circle, the otic placode rotates with the lower part of mounting bracket to be connected, the swing hydro-cylinder rotates the lower part of installing at the mounting bracket, the removal end and the earthing circle of swing hydro-cylinder rotate to be connected, the vertical slidable mounting of axle of digging a pit is in the rear end of last mounting bracket, actuating mechanism installs on last mounting bracket, actuating mechanism is connected with the power takeoff transmission of digging a pit axle and tractor, rotating blade is installed to the axle of digging a pit, rotating blade is located the below of mounting bracket, lift cylinder's stiff end is rotated with the upper end of digging a pit axle and is connected, lift cylinder's removal end is connected with last mounting bracket.

Description

Forestry seedling planting is with earthing device that digs pit

Technical Field

The utility model relates to the technical field of seedling planting, in particular to a pit digging and soil covering device for forestry seedling planting.

Background

China can plant a large number of forestry nursery stocks every year and is used for improving ecological environment, the highest labor intensity in planting the forestry nursery stocks is digging and earthing, the most of the forestry nursery stocks are manually digging and earthing, a few mechanical digging and manual earthing are combined, when the mechanical digging and manual earthing are combined, the digging machinery often needs to wait for manual completion of earthing, meanwhile, the labor intensity of workers cannot be reduced, the work efficiency is low, and the nursery stock planting speed is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the digging and soil covering device for planting the forestry nursery stocks, which adopts mechanical digging and soil covering to reduce the labor intensity of workers and improve the working efficiency.

The utility model relates to a pit digging and soil covering device for forestry seedling planting, which comprises a tractor, a mounting frame, a soil covering ring, an ear plate, a swing oil cylinder, an upper mounting frame, a pit digging shaft, a rotating blade and a lifting oil cylinder, wherein the mounting frame is rotationally connected with a lifter at the rear part of the tractor, a notch is arranged at the rear part of the soil covering ring, the ear plate is arranged on the outer wall of the front part of the soil covering ring and is rotationally connected with the lower part of the mounting frame through a rotating shaft, the fixed end of the swing oil cylinder is rotationally mounted at the lower part of the mounting frame, the moving end of the swing oil cylinder is rotationally connected with the soil covering ring, the upper mounting frame is arranged at the upper part of the mounting frame, the pit digging shaft is vertically and slidably mounted at the rear end of the upper mounting frame, the pit digging shaft and the soil covering ring are concentrically arranged, a driving mechanism is mounted on the upper end surface at the front end of the upper mounting frame, the driving mechanism is in transmission connection with a pit digging shaft, the driving mechanism is in transmission connection with a power takeoff of the tractor, the rotating blade is mounted at the lower end of the pit digging shaft, the rotary blade is positioned below the upper mounting frame, the fixed end of the lifting oil cylinder is rotatably connected with the upper end of the digging shaft, and the moving end of the lifting oil cylinder is connected with the rear end of the upper mounting frame; connecting a hydraulic system of a tractor with a swing oil cylinder and a lifting oil cylinder, driving the tractor to reach a seedling planting position, operating a lifter of the tractor to put down a mounting frame to enable a soil covering ring to be in contact with the ground, starting a power takeoff of the tractor, driving a driving mechanism to operate, driving a pit digging shaft and a rotating blade to rotate by the driving mechanism, enabling the pit digging shaft to descend by contraction of the lifting oil cylinder to enable the rotating blade to drill into the ground to a certain depth, simultaneously enabling the dug soil to be thrown around the soil pit by the rotating blade and to fall inside the soil covering ring, extending the lifting oil cylinder after pit digging is completed, lifting the pit digging shaft and the rotating blade to be lifted, enabling the rotating blade to be lifted from the soil pit, enabling a worker to stand tree seedlings in the soil pit, operating the hydraulic system of the tractor to enable the swing oil cylinder to be repeatedly extended and shortened, and enabling the swing oil cylinder to drive a soil covering ring to swing left and right around a rotating shaft of an ear plate, and simultaneously, the tractor is driven to move back and forth for several times, so that the soil around the soil pit is backfilled into the soil pit by the soil covering ring, the tractor is driven to the next position after the digging and soil covering are completed, the planted saplings are exposed from the gap at the rear part of the soil covering ring, the mechanical digging and soil covering are realized, the labor intensity of workers is reduced, the working efficiency is improved, and the seedling planting speed is high.

Preferably, the pit digging device further comprises a spline groove, a bearing seat and a spline, wherein a mounting hole is formed in the rear end of the upper mounting frame, the spline groove is formed in the outer wall of the upper part of the pit digging shaft, the outer ring of the bearing seat is concentrically mounted in the mounting hole of the upper mounting frame, the spline matched with the spline groove is arranged on the inner wall of the inner ring of the bearing seat, the pit digging shaft is slidably mounted in the inner ring of the bearing seat, the spline groove and the spline are in sliding limit connection, the pit digging shaft is vertically and slidably mounted at the rear end of the upper mounting frame through the bearing seat, and the inner ring of the bearing seat is in transmission connection with the driving mechanism; limiting action of spline groove and spline makes actuating mechanism can drive the axle rotation of digging a pit through the inner circle of rotating the bearing frame, makes lift cylinder can drive the axle of digging a pit and slides from top to bottom along the inner circle of bearing frame simultaneously, improve equipment's practicality.

Preferably, the driving mechanism further comprises a gear box, a driving belt pulley, a driven belt pulley and a belt, the gear box is mounted at the front part of the upper mounting frame through a support, an input shaft of the gear box is in transmission connection with a power takeoff of a tractor, an output shaft of the gear box is concentrically provided with the driving belt pulley, the driven belt pulley is concentrically mounted on the outer wall of an inner ring of the bearing seat, and the belt is sleeved on the driving belt pulley and the driven belt pulley; the power takeoff drives an input shaft of the gear box to rotate, an output shaft of the gear box drives the driving belt pulley to rotate, the driving belt pulley drives the driven belt pulley to rotate through a belt, the driven belt pulley drives an inner ring of the bearing seat and the pit digging shaft to rotate, the structure is simple and mature, and the reliability of equipment is improved.

Preferably, the pit digging device further comprises an upper end plate, a bearing and a slide rail, wherein the fixed end of the lifting oil cylinder is installed at the rear end of the upper end plate, a connecting hole is formed in the middle of the upper end plate, the bearing is installed in the connecting hole of the upper end plate, the inner ring of the bearing is connected with the upper end of the pit digging shaft, the lower end of the slide rail is installed in the middle of the upper installation frame, the slide rail is connected with the front part of the upper end plate in a sliding mode, and the lifting oil cylinder is rotatably connected with the pit digging shaft through the upper end plate and the bearing; the upper end of digging axle is passed through the bearing and is connected with the upper end plate rotation for the digging axle rotates smoothly, and lift cylinder extension and shrink drive the upper end plate and slide from top to bottom along the slide rail, reduce lift cylinder's swing, avoid lift cylinder to receive transverse force and take place the damage, improve equipment's reliability.

Preferably, the power takeoff device also comprises a transmission shaft and two universal joints, wherein the two ends of the transmission shaft are respectively provided with the universal joints, and the two universal joints are respectively connected with the power takeoff of the tractor and the input of the gear box; the input shaft of gear box passes through the transmission shaft and two universal joints are connected with the power takeoff transmission of tractor, through installing two universal joints for when the mounting bracket goes up and down, the synchronous change angle of transmission shaft improves equipment's practicality.

Preferably, the soil-guiding and retaining device further comprises a soil-guiding plate and a soil-retaining plate, wherein the upper end of the rotating blade is provided with an inclined soil-guiding plate, the outer edge of the soil-guiding plate extends out of the outside of the rotating blade, the upper end of the soil-guiding plate is provided with the soil-retaining plate, and the outer end of the soil-retaining plate extends out of the outside of the rotating blade; when the soil block that is excavated by rotating vane and upwards carries along rotating vane meets and leads the native board and keep off the native board, keeps off the native block that the native board will rise and blocks, leads the guide effect of native board and makes the native block along leading the native board by throwing the external world of rotating vane for the vast majority of native block falls in the soil pit outside, improves efficiency of digging a pit.

Compared with the prior art, the utility model has the beneficial effects that: connecting a hydraulic system of a tractor with a swing oil cylinder and a lifting oil cylinder, driving the tractor to reach a seedling planting position, operating a lifter of the tractor to put down a mounting frame to enable a soil covering ring to be in contact with the ground, starting a power takeoff of the tractor, driving a driving mechanism to operate, driving a pit digging shaft and a rotating blade to rotate by the driving mechanism, enabling the pit digging shaft to descend by contraction of the lifting oil cylinder to enable the rotating blade to drill into the ground to a certain depth, simultaneously enabling the dug soil to be thrown around the soil pit by the rotating blade and to fall inside the soil covering ring, extending the lifting oil cylinder after pit digging is completed, lifting the pit digging shaft and the rotating blade to be lifted, enabling the rotating blade to be lifted from the soil pit, enabling a worker to stand tree seedlings in the soil pit, operating the hydraulic system of the tractor to enable the swing oil cylinder to be repeatedly extended and shortened, and enabling the swing oil cylinder to drive a soil covering ring to swing left and right around a rotating shaft of an ear plate, and simultaneously, the tractor is driven to move back and forth for several times, so that the soil around the soil pit is backfilled into the soil pit by the soil covering ring, the tractor is driven to the next position after the digging and soil covering are completed, the planted saplings are exposed from the gap at the rear part of the soil covering ring, the mechanical digging and soil covering are realized, the labor intensity of workers is reduced, the working efficiency is improved, and the seedling planting speed is high.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic structural diagram of the mounting frame, the soil covering ring, the lug plate, the swing cylinder and the upper mounting frame;

FIG. 4 is a schematic structural view of the structure of the pit shaft, the rotary blade, the lift cylinder, the bearing seat and the like;

in the drawings, the reference numbers: 1. a tractor; 2. a mounting frame; 3. covering a soil ring; 4. an ear plate; 5. a swing oil cylinder; 6. mounting a frame; 7. digging a pit shaft; 8. a rotating blade; 9. a lift cylinder; 10. a spline groove; 11. a bearing seat; 12. a spline; 13. a gear case; 14. a drive pulley; 15. a driven pulley; 16. a belt; 17. an upper end plate; 18. a bearing; 19. a slide rail; 20. a drive shaft; 21. a universal joint; 22. a soil guide plate; 23. a soil guard plate.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Example 1

A hole digging and soil covering device for forestry seedling planting comprises a tractor 1, a mounting frame 2, a soil covering ring 3, an ear plate 4, a swinging oil cylinder 5, an upper mounting frame 6, a hole digging shaft 7, a rotating blade 8 and a lifting oil cylinder 9, wherein the mounting frame 2 is rotatably connected with a lifter at the rear part of the tractor 1, a notch is formed in the rear part of the soil covering ring 3, the ear plate 4 is arranged on the outer wall of the front part of the soil covering ring 3, the ear plate 4 is rotatably connected with the lower part of the mounting frame 2 through a rotating shaft, the fixed end of the swinging oil cylinder 5 is rotatably arranged at the lower part of the mounting frame 2, the moving end of the swinging oil cylinder 5 is rotatably connected with the soil covering ring 3, the upper mounting frame 6 is arranged at the upper part of the mounting frame 2, the hole digging shaft 7 is vertically and slidably arranged at the rear end of the upper mounting frame 6, the hole digging shaft 7 and the soil covering ring 3 are concentrically arranged, a driving mechanism is arranged on the upper end surface at the front end of the upper mounting frame 6, and is in transmission connection with the hole digging shaft 7, the driving mechanism is in transmission connection with a power takeoff of the tractor 1, the lower end of the pit digging shaft 7 is provided with a rotating blade 8, the rotating blade 8 is positioned below the upper mounting frame 6, the fixed end of a lifting oil cylinder 9 is rotatably connected with the upper end of the pit digging shaft 7, and the moving end of the lifting oil cylinder 9 is connected with the rear end of the upper mounting frame 6; connecting a hydraulic system of a tractor 1 with a swing oil cylinder 5 and a lifting oil cylinder 9, driving the tractor 1 to reach a seedling planting position, operating a lifter of the tractor 1 to put down a mounting frame 2 to enable a soil covering ring 3 to be in contact with the ground, starting a power takeoff of the tractor 1, driving a driving mechanism to operate, driving a pit digging shaft 7 and a rotating blade 8 to rotate by the driving mechanism, enabling the lifting oil cylinder 9 to contract to drive the pit digging shaft 7 to descend so that the rotating blade 8 drills into the ground to a certain depth, simultaneously throwing the dug soil around the soil by the rotating blade 8 and falling into the soil covering ring 3, extending the lifting oil cylinder 9 after completing the digging, lifting the pit digging shaft 7 and the rotating blade 8 to ascend, lifting the rotating blade 8 from the soil pit, enabling a worker to stand a seedling in the soil pit, operating the hydraulic system of the tractor 1 to enable the swing oil cylinder 5 to extend and shorten for many times, swing hydro-cylinder 5 drives and covers native circle 3 round otic placode 4's pivot horizontal hunting, drives tractor 1 back-and-forth movement several simultaneously for cover native circle 3 backfill the soil around the soil pit to the soil pit, drive tractor 1 to next position after accomplishing digging and earthing, and the sapling of planting exposes from the breach at earthing circle 3 rear portion, realizes mechanical digging and earthing, reduces staff's intensity of labour, improves work efficiency, and the nursery stock is planted fastly.

Example 2

A hole digging and soil covering device for forestry seedling planting comprises a tractor 1, a mounting frame 2, a soil covering ring 3, an ear plate 4, a swinging oil cylinder 5, an upper mounting frame 6, a hole digging shaft 7, a rotating blade 8 and a lifting oil cylinder 9, wherein the mounting frame 2 is rotatably connected with a lifter at the rear part of the tractor 1, a notch is formed in the rear part of the soil covering ring 3, the ear plate 4 is arranged on the outer wall of the front part of the soil covering ring 3, the ear plate 4 is rotatably connected with the lower part of the mounting frame 2 through a rotating shaft, the fixed end of the swinging oil cylinder 5 is rotatably arranged at the lower part of the mounting frame 2, the moving end of the swinging oil cylinder 5 is rotatably connected with the soil covering ring 3, the upper mounting frame 6 is arranged at the upper part of the mounting frame 2, the hole digging shaft 7 is vertically and slidably arranged at the rear end of the upper mounting frame 6, the hole digging shaft 7 and the soil covering ring 3 are concentrically arranged, a driving mechanism is arranged on the upper end surface at the front end of the upper mounting frame 6, and is in transmission connection with the hole digging shaft 7, the driving mechanism is in transmission connection with a power takeoff of the tractor 1, the lower end of the pit digging shaft 7 is provided with a rotating blade 8, the rotating blade 8 is positioned below the upper mounting frame 6, the fixed end of a lifting oil cylinder 9 is rotatably connected with the upper end of the pit digging shaft 7, and the moving end of the lifting oil cylinder 9 is connected with the rear end of the upper mounting frame 6; the pit digging shaft 7 is slidably mounted in an inner ring of the bearing seat 11, the spline groove 10 is in sliding limit connection with the spline 12, the pit digging shaft 7 is vertically and slidably mounted at the rear end of the upper mounting frame 6 through the bearing seat 11, and the inner ring of the bearing seat 11 is in transmission connection with a driving mechanism; the driving mechanism further comprises a gear box 13, a driving belt pulley 14, a driven belt pulley 15 and a belt 16, wherein the gear box 13 is installed on the front portion of the upper installation frame 6 through a support, an input shaft of the gear box 13 is in transmission connection with a power takeoff of the tractor 1, the driving belt pulley 14 is concentrically installed on an output shaft of the gear box 13, the driven belt pulley 15 is concentrically installed on the outer wall of an inner ring of the bearing seat 11, and the belt 16 is sleeved on the driving belt pulley 14 and the driven belt pulley 15; the tractor further comprises a transmission shaft 20 and two universal joints 21, wherein the universal joints 21 are arranged at two ends of the transmission shaft 20, and the two universal joints 21 are respectively connected with the power takeoff of the tractor 1 and the input of the gear box 13; spline groove 10 and spline 12's limiting displacement make actuating mechanism can drive digging axle 7 through the inner circle of rotating bearing frame 11 and rotate, make simultaneously lift cylinder 9 can drive digging axle 7 and slide from top to bottom along the inner circle of bearing frame 11, the input shaft of gear box 13 passes through transmission shaft 20 and two universal joints 21 and is connected with the power takeoff transmission of tractor 1, through installing two universal joints 21, when making mounting bracket 2 go up and down, transmission shaft 20 changes the angle in step, the power takeoff passes through transmission shaft 20 and drives the input shaft rotation of gear box 13, the output shaft of gear box 13 drives driving pulley 14 and rotates, driving pulley 14 drives driven pulley 15 through belt 16 and rotates, driven pulley 15 drives the inner circle of bearing frame 11 and digging axle 7 and rotates, simple structure is ripe, the practicality of the improvement equipment.

Example 3

A hole digging and soil covering device for forestry seedling planting comprises a tractor 1, a mounting frame 2, a soil covering ring 3, an ear plate 4, a swinging oil cylinder 5, an upper mounting frame 6, a hole digging shaft 7, a rotating blade 8 and a lifting oil cylinder 9, wherein the mounting frame 2 is rotatably connected with a lifter at the rear part of the tractor 1, a notch is formed in the rear part of the soil covering ring 3, the ear plate 4 is arranged on the outer wall of the front part of the soil covering ring 3, the ear plate 4 is rotatably connected with the lower part of the mounting frame 2 through a rotating shaft, the fixed end of the swinging oil cylinder 5 is rotatably arranged at the lower part of the mounting frame 2, the moving end of the swinging oil cylinder 5 is rotatably connected with the soil covering ring 3, the upper mounting frame 6 is arranged at the upper part of the mounting frame 2, the hole digging shaft 7 is vertically and slidably arranged at the rear end of the upper mounting frame 6, the hole digging shaft 7 and the soil covering ring 3 are concentrically arranged, a driving mechanism is arranged on the upper end surface at the front end of the upper mounting frame 6, and is in transmission connection with the hole digging shaft 7, the driving mechanism is in transmission connection with a power takeoff of the tractor 1, the lower end of the pit digging shaft 7 is provided with a rotating blade 8, the rotating blade 8 is positioned below the upper mounting frame 6, the fixed end of a lifting oil cylinder 9 is rotatably connected with the upper end of the pit digging shaft 7, and the moving end of the lifting oil cylinder 9 is connected with the rear end of the upper mounting frame 6; the pit digging device is characterized by further comprising an upper end plate 17, a bearing 18 and a sliding rail 19, wherein the fixed end of the lifting oil cylinder 9 is mounted at the rear end of the upper end plate 17, a connecting hole is formed in the middle of the upper end plate 17, the bearing 18 is mounted in the connecting hole of the upper end plate 17, the inner ring of the bearing 18 is connected with the upper end of the pit digging shaft 7, the lower end of the sliding rail 19 is mounted in the middle of the upper mounting frame 6, the sliding rail 19 is connected with the front portion of the upper end plate 17 in a sliding mode, and the lifting oil cylinder 9 is rotatably connected with the pit digging shaft 7 through the upper end plate 17 and the bearing 18; the soil-guiding and retaining device further comprises a soil-guiding plate 22 and a soil-retaining plate 23, wherein the upper end of the rotating blade 8 is provided with the inclined soil-guiding plate 22, the outer edge of the soil-guiding plate 22 extends out of the outer side of the rotating blade 8, the upper end of the soil-guiding plate 22 is provided with the soil-retaining plate 23, and the outer end of the soil-retaining plate 23 extends out of the outer side of the rotating blade 8; the upper end of digging axle 7 is passed through bearing 18 and is connected with upper end plate 17 rotation, make digging axle 7 rotate smoothly, lift cylinder 9 extension and shrink drive upper end plate 17 slide from top to bottom along slide rail 19, reduce lift cylinder 9's swing, it takes place the damage to avoid lift cylinder 9 to receive the transverse force, when the soil block that is dug out and carried along rotating vane 8 upwards meets soil guide plate 22 and fender native board 23 by rotating vane 8, the soil block that keeps off native board 23 will rise blocks, the guide effect of soil guide plate 22 makes the soil block be thrown the external world of rotating vane 8 along soil guide plate 22, make the vast majority of soil block fall in the soil pit outside, improve digging efficiency.

As shown in fig. 1 to 4, when the earth digging and covering device for planting forestry nursery stock of the utility model works, firstly, a hydraulic system of a tractor 1 is connected with a swing oil cylinder 5 and a lifting oil cylinder 9, the tractor 1 is driven to reach a nursery stock planting position, a lifter of the tractor 1 is operated to put down a mounting frame 2, so that an earth covering ring 3 is contacted with the ground, a power takeoff of the tractor 1 is started, the power takeoff drives an input shaft of a gear box 13 to rotate through a transmission shaft 20, an output shaft of the gear box 13 drives a driving belt pulley 14 to rotate, the driving belt pulley 14 drives a driven belt pulley 15 to rotate through a belt 16, the driven belt pulley 15 drives an inner ring of a bearing seat 11, an earth digging shaft 7 and rotating blades 8 to rotate, the lifting oil cylinder 9 contracts to drive the earth digging shaft 7 to descend, so that the rotating blades 8 drill into the ground to a certain depth, and meanwhile, soil blocks dug by the rotating blades 8 and conveyed upwards along the rotating blades 8 meet an earth guide plate 22 and a soil retaining plate 23, the soil blocking plate 23 blocks the raised soil blocks, the soil blocks are thrown to the outside of the rotating blade 8 along the soil blocking plate 22 under the guiding action of the soil blocking plate 22 and fall inside the soil covering ring 3, after the digging is completed, the lifting oil cylinder 9 extends to lift the digging shaft 7 and the rotating blade 8, the rotating blade 8 is lifted from the soil pit, a worker stands the tree seedlings in the soil pit, a hydraulic system of the tractor 1 is operated to enable the swing oil cylinder 5 to extend and shorten for multiple times, the swing oil cylinder 5 drives the soil covering ring 3 to swing left and right around a rotating shaft of the lug plate 4 and drive the tractor 1 to move back and forth for multiple times, the soil around the soil pit is backfilled into the soil pit by the soil covering ring 3, the tractor 1 is driven to the next position after the digging and soil covering are completed, and the planted tree seedlings are exposed from a gap at the rear part of the soil covering ring 3.

The main functions realized by the utility model are as follows: mechanical digging and earthing are adopted, so that the labor intensity of workers is reduced, and the working efficiency is improved.

According to the pit digging and soil covering device for planting the forestry seedlings, the mounting mode, the connecting mode or the setting mode are common mechanical modes, and the pit digging and soil covering device can be implemented as long as the beneficial effects of the pit digging and soil covering device can be achieved; the tractor (1), the transmission shaft (20), the universal joint (21), the rotating blade (8), the lifting oil cylinder (9), the swinging oil cylinder (5), the gear box (13), the driving belt pulley (14), the driven belt pulley (15), the belt (16) and the bearing (18) of the digging and earthing device for forestry seedling planting are purchased from the market, and technicians in the industry only need to install and operate according to the attached operating instructions without creative labor of the technicians in the field.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A pit digging and soil covering device for forestry seedling planting is characterized by comprising a tractor (1), a mounting frame (2), a soil covering ring (3), an ear plate (4), a swinging oil cylinder (5), an upper mounting frame (6), a pit digging shaft (7), a rotating blade (8) and a lifting oil cylinder (9), wherein the mounting frame (2) is rotatably connected with a lifter at the rear part of the tractor (1), a notch is formed in the rear part of the soil covering ring (3), the ear plate (4) is arranged on the outer wall of the front part of the soil covering ring (3), the ear plate (4) is rotatably connected with the lower part of the mounting frame (2) through a rotating shaft, the fixed end of the swinging oil cylinder (5) is rotatably arranged at the lower part of the mounting frame (2), the moving end of the swinging oil cylinder (5) is rotatably connected with the soil covering ring (3), the upper part of the mounting frame (2) is provided with the upper mounting frame (6), the pit digging shaft (7) is vertically and slidably arranged at the rear end of the upper mounting frame (6), digging shaft (7) and covering soil circle (3) and arranging with one heart, actuating mechanism installs on the front end up end of last mounting bracket (6), actuating mechanism is connected with digging shaft (7) transmission, actuating mechanism is connected with the power takeoff transmission of tractor (1), rotating vane (8) are installed to the lower extreme of digging shaft (7), rotating vane (8) are located the below of mounting bracket (6), the stiff end of lift cylinder (9) is rotated with the upper end of digging shaft (7) and is connected, the removal end of lift cylinder (9) is connected with the rear end of last mounting bracket (6).

2. The earth covering device that digs of forestry nursery stock planting according to claim 1, characterized by, still include spline groove (10), bearing frame (11) and spline (12), the rear end of going up mounting bracket (6) is provided with the mounting hole, be provided with spline groove (10) on the upper portion outer wall of digging pit axle (7), the outer lane of bearing frame (11) is installed in the mounting hole of last mounting bracket (6) with one heart, be provided with spline (12) that match with spline groove (10) on the inner wall of the inner circle of bearing frame (11), digging pit axle (7) slidable mounting is in the inner circle of bearing frame (11), spline groove (10) and spline (12) sliding limit are connected, digging pit axle (7) is through the vertical slidable mounting in the rear end of last mounting bracket (6) of bearing frame (11), the inner circle of bearing frame (11) is connected with actuating mechanism transmission.

3. The pit digging and soil covering device for forestry seedling planting according to claim 2, wherein the driving mechanism further comprises a gear box (13), a driving pulley (14), a driven pulley (15) and a belt (16), the gear box (13) is mounted in front of the upper mounting frame (6) through a support, an input shaft of the gear box (13) is in transmission connection with a power takeoff of the tractor (1), the driving pulley (14) is concentrically mounted on an output shaft of the gear box (13), the driven pulley (15) is concentrically mounted on the outer wall of an inner ring of the bearing seat (11), and the belt (16) is sleeved on the driving pulley (14) and the driven pulley (15).

4. The pit digging and soil covering device for forestry seedling planting according to claim 1, further comprising an upper end plate (17), a bearing (18) and a slide rail (19), wherein the fixed end of the lift cylinder (9) is mounted at the rear end of the upper end plate (17), a connecting hole is formed in the middle of the upper end plate (17), the bearing (18) is mounted in the connecting hole of the upper end plate (17), the inner ring of the bearing (18) is connected with the upper end of the pit digging shaft (7), the lower end of the slide rail (19) is mounted in the middle of the upper mounting frame (6), the slide rail (19) is in sliding connection with the front portion of the upper end plate (17), and the lift cylinder (9) is rotatably connected with the pit digging shaft (7) through the upper end plate (17) and the bearing (18).

5. A hole digging and soil covering device for forestry seedling planting according to claim 3, further comprising a transmission shaft (20) and two universal joints (21), wherein the two ends of the transmission shaft (20) are respectively provided with the universal joints (21), and the two universal joints (21) are respectively connected with the power takeoff of the tractor (1) and the input rear of the gear box (13).

6. The earth-digging and soil-covering device for forestry seedling planting according to claim 1, further comprising a soil guide plate (22) and a soil guard plate (23), wherein the upper end of the rotary blade (8) is provided with the inclined soil guide plate (22), the outer edge of the soil guide plate (22) extends out of the outer side of the rotary blade (8), the upper end of the soil guide plate (22) is provided with the soil guard plate (23), and the outer end of the soil guard plate (23) extends out of the outer side of the rotary blade (8).