Horizontal sapling transporting structure for desert tree planting equipment

Abstract

The utility model discloses a sapling horizontal transporting structure for desert tree planting equipment, which comprises a base, a clamping support is rotatably mounted at the upper end of the base, a fixed clamping jaw component is mounted in the middle and on the lower portion of the clamping support respectively, and a movable clamping jaw component capable of longitudinally sliding is mounted in the longitudinal direction of the clamping support. The movable clamping jaw assembly can penetrate through the middle parts of the two fixed clamping jaw assemblies; according to the utility model, a plurality of clamping jaw assemblies are used for cooperatively clamping a sapling, so that the clamping stability and balance can be obviously improved, the sapling is prevented from colliding with other structures of the tree planting equipment due to tremor in the transfer process, and the reduction of the positioning precision is avoided. And meanwhile, one pair of clamping jaw assemblies is used for driving the other two pairs of clamping jaw assemblies to conduct clamping, interference is avoided while energy is saved, impact force superposition possibly generated at the moment when a plurality of driving units are started at the same time is eliminated, and therefore the initial stability of the clamping process is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the field of desert tree planting, in particular to a horizontal sapling transport structure for desert tree planting equipment. Background Art

[0002] In desert environment vegetation restoration projects, a variety of automated tree-planting equipment has been made public. Although such equipment significantly reduces the amount of manual work, it still has obvious limitations in terms of operational flexibility and adaptability compared to manual operation.

[0003] A particularly prominent technical bottleneck lies in the critical process of transferring the sapling from the barrel to the drill bit. Most current equipment relies on a single rigid mechanical clamping mechanism to grasp and transfer the sapling. During operation, this mechanism, particularly during high-speed movement after grasping and the rigid emergency stop upon reaching the target position, inevitably causes severe vibration of the clamped sapling. This vibration, induced by the rigid motion characteristics of the mechanism, is widely believed to result in at least two significant technical drawbacks:

[0004] Increased risk of tree damage: During vibration, the probability of uncontrolled collisions between tree saplings and components of automated tree planting equipment increases significantly. This collision can easily damage the sapling's skin or even break its stem, directly impacting its survival rate.

[0005] Decreased positioning accuracy leads to planting failures: Violent vibrations also severely disrupt the stable positioning of the sapling's tip above the drill bit. The drill's receiving hole diameter is typically designed to be only slightly larger than the sapling's diameter to ensure upright planting. However, under continuous vibration, the sapling struggles to accurately and stably align with the drill's central drop channel. The direct consequence is that the sapling cannot smoothly enter the intended planting position during the lowering process, or may even deviate completely from the target, resulting in an ineffective planting operation.

[0006] Therefore, how to effectively suppress the vibration of seedlings during the transfer process, reduce the risk of damage and improve the terminal positioning accuracy, so as to ensure the effective operation rate of automated tree planting equipment, is a practical problem that needs to be solved urgently in the current field of mechanized planting technology of desert vegetation. Utility Model Content

[0007] The purpose of the utility model is to provide a horizontal sapling transport structure for desert tree planting equipment to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a horizontal sapling transport structure for desert tree planting equipment, comprising a base, a clamping bracket rotatably mounted on the upper end of the base, a fixed clamping jaw assembly mounted in the middle and lower portions of the clamping bracket, and a movable clamping jaw assembly mounted in the longitudinal direction of the clamping bracket, wherein the movable clamping jaw assembly can be inserted through the middle of the two fixed clamping jaw assemblies;

[0009] The movable clamping jaw assembly includes two movable clamping jaws slidably mounted in a sliding box, a clamping rack being provided at the rear end of each movable clamping jaw, the two clamping racks being aligned vertically and meshing with a clamping gear to complete the horizontal opening or clamping of the movable clamping jaw assembly; the clamping gear is rotatably connected to the sliding box, the clamping gear is coaxially connected to a half gear, the half gear is meshed with a fixed rack mounted parallel to the sliding screw, the sliding box is threadedly connected to the sliding screw and is driven by a motor on the sliding screw to move up and down on the clamping bracket;

[0010] The fixed jaw assembly includes a jaw with a clamping rack at the rear end, the two clamping racks are aligned vertically and meshed with the clamping gear to complete the horizontal opening or clamping of the fixed jaw assembly, and the clamping gear is coaxially connected to the lifting gear meshed with the lifting rack;

[0011] When the movable clamping jaws are tightened and clamped to the top, the lifting rack is lifted to make the two fixed clamping jaw assemblies tighten and clamp the saplings.

[0012] Preferably, the bottom of the clamping bracket is fixedly mounted on a turntable, the turntable is rotatably mounted on a base and driven by a motor provided in the base, and the base is mounted on a transport frame that moves in parallel.

[0013] Preferably, both the clamping jaw and the movable clamping jaw are provided with a clamping opening, and two clamping blocks for strengthening the clamping force are symmetrically arranged in the clamping opening, and the clamping blocks are hinged to the clamping jaw and the movable clamping jaw through a torsion spring.

[0014] Preferably, the upper and lower ends of the sliding screw are rotatably connected to the clamping bracket, and the sliding box slides in a slot reserved in the clamping bracket to prevent it from detaching from the clamping bracket.

[0015] Preferably, a torsion spring for resetting is provided on the shaft connecting the clamping gear and the half gear. When the movable clamping jaw assembly rises, the half gear clamps or opens the movable clamping jaw by meshing with the fixed rack. Specifically:

[0016] When the movable clamping jaw assembly rises, the half gear and the clamping gear coaxial with the half gear are rotated, and the clamping gear pulls the two aligned clamping racks inward, so that the two movable clamping jaws are clamped; conversely, when the movable clamping jaw assembly descends, the half gear and the clamping gear coaxial with the half gear are rotated in the opposite direction, and the clamping gear pushes the two aligned clamping racks outward, so that the two movable clamping jaws are opened;

[0017] The fixed rack is fixed in the clamping bracket, and the length of the fixed rack is greater than the sliding distance of the sliding box, so as to prevent the half gear from being disengaged from the fixed rack.

[0018] Preferably, the upper end of the lifting rack is fixedly connected to a lifting rod, and when the sliding box rises to the lifting rod, it pushes the lifting rod upward, and then the clamping claws of the two fixed clamping claw assemblies are clamped through the transmission of the lifting rack and the lifting gear to clamp the sapling, and a lifting spring for resetting the lifting rod is provided between the upper end of the lifting rod and the inner side of the upper end of the clamping bracket.

[0019] Compared with the existing technology, the beneficial effects of the present invention are as follows: the present invention uses multiple clamping jaw assemblies to implement collaborative clamping of saplings, which can significantly improve the stability and balance of clamping compared to a single clamping mechanism, effectively disperse the mechanical stress acting on the saplings, and avoid collisions between the saplings and other structures of the tree planting equipment due to vibration during the transfer process, thereby avoiding a decrease in positioning accuracy. At the same time, a pair of clamping jaw assemblies is used to drive the other two pairs of clamping jaw assemblies for clamping, which saves energy while avoiding interference, and effectively prevents the problem of motion interference between the clamping jaw assemblies that may be caused by the difficulty in accurately synchronizing the action timing of multiple independent drive units. More importantly, this design fundamentally eliminates the superposition of impact forces that may be generated when multiple drive units are started at the same time. This impact force is one of the main factors that induce violent vibrations of the saplings in the initial stage, thereby significantly improving the initial stability of the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the lifting gear of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the half gear of the utility model;

[0023] Figure 4 This is a schematic structural diagram of the clamping block of the utility model;

[0024] Figure 5 This is a schematic diagram of the utility model in use.

[0025] In the figure: 1. base, 101. turntable, 2. clamping bracket, 3. clamping claw, 301. clamping block, 302. clamping rack, 303. clamping gear, 4. lifting rack, 401. accommodating groove, 402. lifting rod, 403. lifting spring, 404. lifting gear, 5. sliding box, 501. half gear, 502. fixed rack, 503. sliding screw, 504. movable clamping claw, 505. clamping rack, 506. clamping gear. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-5In order to solve the problem that the high-speed movement after the grasping action and the rigid emergency stop operation when reaching the target position cause violent vibration of the clamped saplings, which increases the risk of sapling damage and reduces positioning accuracy, leading to planting failure, the utility model uses multiple clamping jaw assemblies to implement collaborative clamping of saplings. Compared with a single clamping mechanism, it can significantly improve the stability and balance of clamping, effectively disperse the mechanical stress acting on the saplings, and avoid collisions between the saplings and other structures of the tree planting equipment due to vibration during the transfer process, thereby avoiding a decrease in positioning accuracy. At the same time, a pair of clamping jaw assemblies is used to drive the other two pairs of clamping jaw assemblies to clamp, saving energy while avoiding interference, and effectively preventing the problem of motion interference between clamping jaw assemblies that may be caused by the difficulty in accurately synchronizing the action timing of multiple independent drive units. More importantly, this design fundamentally eliminates the superposition of impact forces that may be generated when multiple drive units are started at the same time. This impact force is one of the main factors that induce violent vibration of saplings in the initial stage, thereby significantly improving the initial stability of the clamping process. The utility model provides a technical solution: a structure for transporting seedlings horizontally for desert tree planting equipment, comprising a base 1, a clamping bracket 2 rotatably mounted on the upper end of the base 1, the bottom of the clamping bracket 2 fixedly mounted on a turntable 101, the turntable 101 rotatably mounted on the base 1 and driven by a motor provided in the base 1, and the base 1 mounted on a transport rack that moves in parallel. As needed, components capable of horizontal movement, such as cylinders, electric push rods, screw rods, etc., can be provided under the base 1 to facilitate transporting seedlings. A fixed clamping jaw assembly is installed at the middle and lower parts of the clamping bracket 2, and a movable clamping jaw assembly that can slide longitudinally is further installed in the longitudinal direction of the clamping bracket 2. The movable clamping jaw assembly can be inserted from the middle of the two fixed clamping jaw assemblies; when the movable clamping jaw 504 tightens and clamps the seedling and rises to the top, the lifting rack 4 is lifted to tighten and clamp the two fixed clamping jaw assemblies. When in use, the base 1 is moved close to the seedling barrel ( Figure 5 On the right side), start the motor, the motor drives the turntable 101 to rotate, the turntable 101 drives the clamping bracket 2 to rotate, the clamping bracket 2 drives the clamping claw assembly to rotate, so that the clamping claw assembly is close to the sapling, and then start the movable clamping claw assembly to clamp the sapling, and then raise the movable clamping claw assembly, the movable clamping claw assembly drives the sapling to be pulled out of the sapling barrel, when the movable clamping claw assembly rises to the uppermost end, it will start two pairs of fixed clamping claw assemblies, and the three pairs of clamping claw assemblies will clamp the sapling together, multiple heavy clamping improves the stability and balance of clamping, and then move the device to the drill bit ( Figure 5 left) approach, then release and lower, dropping the sapling into the drill.

[0028] The movable clamping jaw assembly includes two movable clamping jaws 504 slidably mounted in the sliding box 5, and a clamping rack 505 is provided at the rear end of each movable clamping jaw 504. The two clamping racks 505 are aligned up and down and meshed with the clamping gear 506 to complete the horizontal opening or clamping of the movable clamping jaw assembly; the clamping gear 506 is rotatably connected in the sliding box 5, and the clamping rack 505 is slidably connected in the sliding box 5. The clamping gear 506 is coaxially connected with a half gear 501, and the half gear 501 extends out of the sliding box 5 and meshes with the fixed rack 502. The fixed rack 502 is parallel to the sliding screw 503, and the sliding box 5 is threadedly connected to the sliding screw 503. The motor drives the sliding screw 503, so that the sliding box 5 moves up and down on the clamping bracket 2; the upper and lower ends of the sliding screw 503 are rotatably connected to the clamping bracket 2, and the sliding box 5 slides in the slot reserved in the clamping bracket 2 to prevent it from detaching from the clamping bracket 2. The shaft connecting the clamping gear 506 and the half gear 501 is provided with a torsion spring for resetting. When the movable clamping jaw assembly rises, the half gear 501 clamps or opens the movable clamping jaw 504 by meshing with the fixed rack 502. Specifically, when the movable clamping jaw assembly rises, the half gear 501 and the clamping gear 506 coaxial with the half gear 501 are rotated, and the clamping gear 506 pulls the two aligned clamping racks 505 inward to clamp the two movable clamping jaws 504; conversely, when the movable clamping jaw assembly descends, the half gear 501 and the clamping gear 506 coaxial with the half gear 501 are rotated in the opposite direction, and the clamping gear 506 pushes the two aligned clamping racks 505 outward to open the two movable clamping jaws 504; the fixed rack 502 is fixed in the clamping bracket 2, and the length of the fixed rack 502 is greater than the sliding distance of the sliding box 5, preventing the half gear 501 from disengaging from the fixed rack 502.

[0029] The fixed jaw assembly includes a jaw 3, each with a clamping rack 302 at the rear end. The two clamping racks 302 are aligned vertically and meshed with a clamping gear 303, completing the horizontal opening or clamping of the fixed jaw assembly. The clamping gear 303 is coaxially connected to a lifting gear 404 meshed with a lifting rack 4. The clamping gear 303 is rotatably connected to the clamping bracket 2, and the clamping rack 302 is slidably connected to the clamping bracket 2. The jaw 3 in the fixed jaw assembly is provided with a receiving groove 401 for accommodating the fixed rack 502 and the sliding screw 503. The jaw 3 and the movable jaw 504 are both provided with a clamping opening, symmetrically provided with two clamping blocks 301 for strengthening the clamping force. The clamping blocks 301 are hinged to the jaw 3 and the movable jaw 504 via a torsion spring to accommodate saplings of different diameters. The clamping block 301 is made of an elastically deformable material, such as rubber or silicone, to absorb vibrations and prevent damage to the sapling while also preventing it from slipping. A lifting rod 402 is fixedly connected to the upper end of the lifting rack 4. When the sliding box 5 rises to the lifting rod 402, it pushes the lifting rod 402 upward. The lifting rack 4 and the lifting gear 404 then drive the two fixed jaws 3 together, clamping the sapling. A lifting spring 403 is provided between the upper end of the lifting rod 402 and the inner side of the upper end of the clamping bracket 2 to reset the lifting rod 402.

[0030] When clamping, the sliding box 5 is located at the lower end, so that the sapling is located between the two movable clamping jaws 504 of the movable clamping jaw assembly, and then the motor is started, the motor drives the sliding screw rod 503 to rotate, the sliding screw rod 503 rotates to make the sliding box 5 move up, and the sliding box 5 drives the half gear 501 to move. Due to the engagement of the half gear 501 with the fixed rack 502, the half gear 501 rotates, and the half gear 501 drives the clamping gear 506 in the sliding box 5 to rotate. The clamping gear 506 rotates to make the two clamping racks 505 approach each other, and the clamping rack 505 drives the two movable clamping jaws 504 approach each other to clamp the sapling. The clamping block 301 is compressed by the sapling, and due to the engagement of the half gear 501 with the torque With the cooperation of the spring, the two movable clamping claws 504 on the sliding box 5 are always in a clamping state during the rising process of the sliding box 5; when the sliding box 5 passes between the clamping claws 3 of the two fixed clamping claw assemblies and rises to the position of the lifting rod 402, the sliding box 5 drives the lifting rod 402 to rise, and the lifting rod 402 drives the lifting rack 4 to rise. The lifting rack 4 drives the lifting spring 403 to deform while driving the lifting gear 404 to rotate, and the lifting gear 404 drives the clamping gear 303 to rotate. The rotation of the clamping gear 303 makes the two clamping racks 302 approach each other, and the clamping rack 302 drives the two clamping claws 3 to approach each other to further clamp the sapling, thereby preventing the sapling from shaking. When it is necessary to loosen, the motor is reversed, and the motor drives the sliding screw rod 503 to rotate. The sliding screw rod 503 rotates to make the sliding box 5 move down. The half gear 501 immediately starts to reverse under the action of the torsion spring and the fixed rack 502. The half gear 501 drives the clamping gear 506 in the sliding box 5 to rotate. The clamping gear 506 rotates to make the two clamping racks 505 move away from each other, thereby loosening the upper end of the sapling, but the middle and lower ends of the sapling are still clamped by the other two pairs of fixed clamping jaw assemblies. The sliding box 5 continues to descend, and the lifting rack 4 is reset under the action of the spring until the lifting rack 4 is completely reset. The other two pairs of fixed clamping jaw assemblies release the sapling, and the sapling falls into the drill bit. At this time, the jaws 3 of the fixed clamping jaw assembly are completely loosened, which does not affect the passage of the sliding box 5. The sliding box 5 drives the movable clamping jaw assembly back to the bottom to prepare for the next clamping.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sapling horizontal tree transport structure for desert tree planting equipment, comprising a base (1), characterized in that: The upper end of the base (1) is rotatably mounted with a clamping bracket (2), a fixed clamping jaw assembly is mounted on the middle and lower parts of the clamping bracket (2), and a movable clamping jaw assembly that can slide longitudinally is mounted in the longitudinal direction of the clamping bracket (2), and the movable clamping jaw assembly can be inserted from the middle of the two fixed clamping jaw assemblies; The movable clamping jaw assembly comprises two movable clamping jaws (504) slidably mounted in a sliding box (5), a clamping rack (505) being provided at the rear end of each movable clamping jaw (504), the two clamping racks (505) being aligned vertically and meshingly connected with a clamping gear (506), thereby completing the horizontal opening or clamping of the movable clamping jaw assembly; the clamping gear (506) being rotatably connected in the sliding box (5), the clamping gear (506) being coaxially connected with a half gear (501), the half gear (501) being meshed with a fixed rack (502) mounted parallel to the sliding screw (503), the sliding box (5) being threadedly connected to the sliding screw (503) and being driven by a motor on the sliding screw (503) to move up and down on the clamping bracket (2); The fixed clamping jaw assembly includes a clamping jaw (3) with a clamping rack (302) at the rear end, the two clamping racks (302) are aligned vertically and meshed with the clamping gear (303), completing the horizontal opening or clamping of the fixed clamping jaw assembly, and the clamping gear (303) is coaxially connected to the lifting gear (404) meshed with the lifting rack (4); When the movable clamping jaw (504) is tightened and clamps the sapling and rises to the top, the lifting rack (4) is lifted to allow the two fixed clamping jaw assemblies to tighten and clamp the sapling.

2. The horizontal sapling transport structure for desert tree planting equipment according to claim 1, characterized in that: The bottom of the clamping bracket (2) is fixedly mounted on the turntable (101), the turntable (101) is rotatably mounted on the base (1) and driven by a motor provided in the base (1), and the base (1) is mounted on a transport frame that moves in parallel.

3. The horizontal sapling transport structure for desert tree planting equipment according to claim 1, characterized in that: The clamping jaw (3) and the movable clamping jaw (504) are both provided with a clamping opening, and two clamping blocks (301) for strengthening the clamping force are symmetrically provided in the clamping opening. The clamping blocks (301) are hinged to the clamping jaw (3) and the movable clamping jaw (504) via a torsion spring.

4. The horizontal sapling transport structure for desert tree planting equipment according to claim 1, characterized in that: The upper and lower ends of the sliding screw rod (503) are rotatably connected to the clamping bracket (2), and the sliding box (5) slides in a slot reserved in the clamping bracket (2) to prevent it from being separated from the clamping bracket (2).

5. The horizontal sapling transport structure for desert tree planting equipment according to claim 1, characterized in that: A torsion spring for resetting is provided on the shaft connecting the clamping gear (506) and the half gear (501). When the movable clamping jaw assembly rises, the half gear (501) clamps or opens the movable clamping jaw (504) by meshing with the fixed rack (502). Specifically: When the movable clamping jaw assembly rises, the half gear (501) and the clamping gear (506) coaxial with the half gear (501) are rotated, and the clamping gear (506) pulls the two aligned clamping racks (505) inward, so that the two movable clamping jaws (504) are clamped; conversely, when the movable clamping jaw assembly descends, the half gear (501) and the clamping gear (506) coaxial with the half gear (501) are rotated in the opposite direction, and the clamping gear (506) pushes the two aligned clamping racks (505) outward, so that the two movable clamping jaws (504) are opened; The fixed rack (502) is fixed in the clamping bracket (2), and the length of the fixed rack (502) is greater than the sliding distance of the sliding box (5), thereby preventing the half gear (501) from being disengaged from the fixed rack (502).

6. The horizontal sapling transport structure for desert tree planting equipment according to claim 1, characterized in that: The upper end of the lifting rack (4) is fixedly connected to a lifting rod (402). When the sliding box (5) rises to the lifting rod (402), it pushes the lifting rod (402) upward, and then the two fixed clamping claws (3) of the clamping claw assembly are clamped through the transmission of the lifting rack (4) and the lifting gear (404) to clamp the sapling. A lifting spring (403) for resetting the lifting rod (402) is provided between the upper end of the lifting rod (402) and the inner side of the upper end of the clamping bracket (2).

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