Shrub stumping instrument

Abstract

The utility model discloses a shrub stumping instrument which comprises a traction support and a stumping assembly, and the stumping assembly comprises a smashing bin, a moving wheel set, a feeding port and a discharging port. A cutting component and an air nozzle are arranged at the feeding port, and the air nozzle provides airflow through high-pressure air source equipment so that it can be guaranteed that the cut branches smoothly enter the smashing bin. The crushing barrel is arranged in the crushing bin, the driving motor and the crushing cutter set are arranged, materials are crushed at a high speed through centrifugal force, the materials can be effectively separated through the separation plate arranged in the crushing bin, and sufficient crushing is guaranteed. The moving wheel set is adjusted through the electric telescopic rod, and the stumping height is adjusted. The discharging port is provided with a discharging barrel and an electric driving device so that materials can be discharged in order. According to the machine, the operation efficiency is improved, meanwhile, disordered accumulation on the ground is reduced, the follow-up treatment procedure is optimized, and high ecological benefits and economic benefits are achieved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, specifically to a shrub pruning device. Background Technology

[0002] Shrubs such as Caragana, Caragana korshinskii, and Salix psammophila possess unique advantages in sand control and ecological restoration, exhibiting high ecological and economic value in combating desertification and conserving water and soil. Among them, Caragana and Caragana korshinskii are rich in protein, making them excellent natural additives for high-protein feeds; while Salix psammophila has a high calorific value and can be utilized as biomass fuel. Based on the growth patterns of these plants, to maintain their vitality and economic benefits, they typically require coppicing for rejuvenation and nurturing every three years, often using a bi-annual or bi-generational coppicing rotation method to ensure plant health and stable yield.

[0003] Currently, traditional shrub coppicing machines have shortcomings in practical applications. First, the cutting blades of traditional coppicing machines are designed to be exposed, which easily generates a splashing effect during the cutting process. This causes some cut branches to not be effectively collected into the feed bin, but instead scatter on the ground, increasing the difficulty of subsequent cleanup and environmental maintenance. In addition, since the branches need to be shredded before preparing natural feed additives or biomass fuels, existing coppicing machines generally lack a dedicated shredding structure, which is not conducive to subsequent processing.

[0004] Therefore, there is an urgent need to design a shrub pruning machine to meet the multiple requirements of modern agricultural production and ecological environmental protection. Utility Model Content

[0005] The purpose of this invention is to provide a shrub pruning machine that can effectively solve the problems of branch scattering and lack of crushing structure in traditional pruning machines.

[0006] The technical solution adopted by this utility model to solve the above problems is: a shrub coppicing device, including a traction bracket and a coppicing component. The traction bracket and the coppicing component are connected and fixed. The coppicing component includes a crushing chamber and a set of movable wheels arranged below the crushing chamber. The crushing chamber is provided with a feed inlet and a discharge outlet at the front and rear, respectively. A cutting component and air nozzles located on the left and right sides of the cutting component are arranged at the feed inlet. The air nozzles are connected to a high-pressure air source device to provide high-pressure airflow.

[0007] Preferably, the crushing chamber is equipped with a crushing cylinder that is rotatably installed inside and a chamber-side motor that drives the cylinder to rotate. A crushing blade assembly is provided on the outer surface of the crushing cylinder. Several separation plates are arranged on the inner wall of the crushing chamber. The separation plates are arranged at equal intervals along the axial direction of the crushing cylinder to form a single row, and multiple rows are provided. The multiple rows of separation plates are arranged at intervals on the inner wall of the crushing chamber.

[0008] Preferably, the cutting component includes a fixed frame on which several sets of saw blades are rotatably arranged, and an independent drive motor is provided in the middle and on the outermost side to drive the saw blades to rotate. The drive motor and the saw blades are respectively connected to the drive shaft of the outermost drive motor through a set of synchronous belt or chain tooth transmission mechanism.

[0009] Preferably, the crushing chamber includes a top cover near the discharge port, the top cover has several ventilation holes, and a row of separation plates is arranged below the top cover.

[0010] Preferably, the separating plate includes a rectangular plate and a right-angled trapezoidal plate. The rectangular plates are arranged in two rows near the feed inlet, and the right-angled trapezoidal plates are arranged in one row above the crushing cylinder. The height of the right-angled trapezoidal plates is greater than that of the rectangular plates, and the distance between adjacent rectangular plates in the same row is less than the distance between adjacent right-angled trapezoidal plates in the same row.

[0011] Preferably, the fixed frame is connected to two swing frames at both ends, and a servo motor for driving the swing frames to swing is installed and fixed outside the crushing chamber.

[0012] Preferably, the crushing blade assembly includes three sets of crushing blades. The crushing blade assembly adopts a forked structure design, with the crushing blade in the middle being vertical and the crushing blades on both sides having their cutting edges angled outwards.

[0013] Preferably, the movable wheel assembly includes a telescopic rod fixed below the crushing chamber and rollers rotatably connected to the lower end of the telescopic rod.

[0014] Preferably, the discharge port is rotatably equipped with a discharge cylinder and is fitted with a discharge motor that drives the discharge cylinder to rotate.

[0015] Preferably, the discharge port is slidably provided with a baffle, and the baffle is provided with a handle.

[0016] Compared with the prior art, this utility model has the following advantages and effects:

[0017] This invention solves the problems of branch splattering and lack of crushing structure in traditional shrub coppicing machines by integrating cutting and crushing into a single design. Specifically, the high-pressure airflow system at the feed inlet effectively prevents branch splattering during cutting, ensuring that the cut material enters the crushing chamber stably, reducing ground debris accumulation and improving collection efficiency. The crushing cylinder and separation plate inside the crushing chamber ensure thorough crushing and screening of the material, effectively improving the crushing quality and providing efficient and convenient pretreatment for subsequent biomass fuel or natural feed additive production. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a shrub coppicing device according to an embodiment of the present invention.

[0019] Figure 2 This is a side view of a shrub pruning tool according to an embodiment of the present invention.

[0020] Figure 3 This is a front view of a shrub pruning tool according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the internal structure of a shrub coppicing tool according to an embodiment of the present invention.

[0022] Attached Figures: 11. Traction Support; 12. Flattening Assembly; 13. Crushing Chamber; 14. Moving Wheel Set; 15. Feed Inlet; 16. Discharge Outlet; 17. Cutting Component; 18. Air Nozzle; 19. Pipeline; 20. High-Pressure Air Source Equipment; 21. Crushing Cylinder; 22. Chamber Side Motor; 23. Crushing Blade Set; 24. Crushing Blade; 25. Separation Plate; 31. Fixing Frame; 32. Saw Blade; 33. Drive Motor; 34. Belt Drive Mechanism; 35. Swing Frame; 36. Steering Motor; 41. Top Cover; 42. Ventilation Hole; 43. Rectangular Plate; 44. Right-Angled Trapezoidal Plate; 51. Telescopic Rod; 52. Roller; 53. Discharge Cylinder; 54. Discharge Motor; 55. Baffle; 56. Handle. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0024] See Figure 1 - Figure 4 This embodiment relates to a shrub coppicing device, mainly used for coppicing, cutting, crushing, and preliminary separation of shrubs. Specifically, it includes a traction bracket 11 and a coppicing assembly 12, with the traction bracket 11 and the coppicing assembly 12 connected and fixed together.

[0025] The coping component 12 includes a crushing chamber 13 and a set of moving wheels 14 disposed below the crushing chamber 13. The crushing chamber 13 is provided with a feed inlet 15 and a discharge outlet 16 at the front and rear, respectively.

[0026] The feed inlet 15 is equipped with a cutting component 17 and air nozzles 18 located on the left and right sides of the cutting component 17. The air nozzles 18 are connected to a high-pressure air source device 20 to provide high-pressure airflow.

[0027] Specifically, in this embodiment, the entire machine consists of a traction bracket 11 and a coppicing assembly 12, which are detachably connected and fixed together by bolts and nuts. The traction bracket 11 is detachably connected and fixed to the rear of an agricultural vehicle (such as a tiller or tractor) to provide external traction. The coppicing assembly 12 integrates a crushing chamber 13, a cutting component 17, an air nozzle system 18, and a moving wheel set 14. The various functional components work together to achieve uniform cutting and crushing of shrubs, while ensuring that the crushed material is easy to collect and transport after the operation. The air nozzle 18 is connected to a high-pressure air source device 20 via a pipeline 19 to achieve efficient air delivery. When working, the air nozzle 18 directs the generated air force to the cutting area, so that the cut branches are quickly sent into the crushing chamber 13, preventing the branches from scattering on the ground due to splashing during the cutting process. This invention uses the wind power generated by the high-pressure air source device 20 to evenly deliver the cut shrub branches into the crushing chamber 13, preventing branches from splashing and accumulating at the feed inlet 15, ensuring that the raw materials continuously and stably enter the crushing process, while reducing the amount of branches falling on the ground, thereby improving collection efficiency and reducing subsequent ground cleaning.

[0028] The grinding chamber 13 contains a rotatable grinding cylinder 21, which is equipped with a chamber-side motor 22 to drive its rotation. A grinding blade assembly 23 is provided on the outer surface of the grinding cylinder 21. The grinding blade assembly 23 includes three sets of grinding blades 24, which adopt a forked structure design. The central grinding blade 24 is vertical, while the blades on both sides are angled outwards. The centrifugal force generated by high-speed rotation is used to pulverize the incoming branches at high speed. Simultaneously, the grinding chamber 13 contains a rotatable grinding cylinder 21, which is equipped with a chamber-side motor 22 to drive its rotation. The outer surface of the grinding cylinder 21 is equipped with the grinding blade assembly 23. Several separation plates 25 are arranged on the inner wall of the grinding chamber 13. The separation plates 25 are arranged at equal intervals along the axial direction of the grinding cylinder 21, forming a single row, and multiple rows are also provided, with the multiple rows of separation plates 25 spaced apart on the inner wall of the grinding chamber 13. The separating plate 25 serves to separate and screen the crushed materials. Short materials, due to their small mass, can bypass the crushing wheel under centrifugal force. Long materials, due to their large mass, are thrown onto the inner wall of the crushing chamber 13 under centrifugal force and are blocked by the separating plate 25. Then, under the action of gravity, they re-enter the crushing cylinder 21 for further processing, thereby achieving the effect of fully crushing the materials for subsequent use.

[0029] See Figure 3The cutting component 17 located at the feed inlet 15 includes a fixed frame 31 and five sets of saw blades 32 arranged in a staggered pattern on it. The middle and outermost sets of saw blades 32 are each equipped with an independent drive motor 33, directly driving the saw blades 32 to rotate at high speed. The other two sets of saw blades 32 are linked to the outermost saw blade 32 via a belt drive mechanism 34. This staggered arrangement of multiple sets of saw blades 32 not only ensures that shrub branches are cut evenly before entering the crushing chamber 13, but also effectively reduces the problem of branches being too long or failing to cut solid parts, thus affecting subsequent crushing. Simultaneously, the fixed frame 31 is connected to two swingable frames 35 at both ends, driven by servo motors 36. The servo motors 36 control the swing angle of the swing frames 35, allowing for timely adjustment of the cutting angle of the saw blades 32 according to actual operating conditions. Furthermore, the cutting angle of the saw blades 32 can be adjusted in real time during travel, ensuring that the saw blades 32 cut branches as perpendicularly as possible, reducing damage to the saw blades 32 during cutting and increasing travel speed.

[0030] See Figure 4 The crushing chamber 13 includes a top cover 41 near the discharge port 16. The top cover 41 has several vent holes 42 to ensure air circulation during the crushing process. This allows the airflow blown from the nozzle 18 to be discharged through the vent holes 42, ensuring air circulation within the crushing chamber 13 and preventing material blockage due to poor internal airflow. A row of separation plates 25 is located below the top cover 41. The separation plates 25 are located on the side near the discharge port 16. When too much material remains in the intervals of the separation plates 25, it will affect the screening effect. In this embodiment, the air sprayed from the nozzle 18 can help the material to be blown off the separation plates 25 to reduce the material residue on the separation plates 25 and ensure the material separation effect during the crushing process. The separating plate 25 includes rectangular plates 43 and right-angled trapezoidal plates 44. Two rows of rectangular plates 43 are arranged near the feed inlet 15. One row of right-angled trapezoidal plates 44 is arranged above the crushing cylinder 21, and the height of the right-angled trapezoidal plates 44 is greater than that of the rectangular plates 43. The distance between adjacent rectangular plates 43 in the same row is less than the distance between adjacent right-angled trapezoidal plates 44 in the same row. The shorter rectangular plates 43 are used to screen long strips and short materials blown into the inner wall of the crushing chamber 13 by high-pressure airflow, allowing short materials to pass through. Long strips that do not pass through are crushed and cut by gravity in contact with the crushing cylinder 21. The cut materials are then separated a second time by the longer right-angled trapezoidal plates 44.

[0031] The movable wheel assembly 14 includes a telescopic rod 51 fixed below the crushing chamber 13 and rollers 52 rotatably connected to the lower end of the telescopic rod 51. In this embodiment, the telescopic rod 51 can be an electric rod or a cylinder. By driving the rollers to extend and retract, the ground clearance of the crushing chamber 13 can be adjusted, thereby adjusting the height of the stubble. The discharge port 16 is rotatably equipped with a discharge cylinder 53 and is adapted to a discharge motor 54 that drives the discharge cylinder 53 to rotate, so as to realize the orderly discharge of materials from the discharge port 16. At the same time, the discharge port 16 is slidably equipped with a baffle 55, and a handle 56 is provided on the baffle 55, which facilitates the operator to perform necessary manual cleaning of materials after the equipment is stopped.

[0032] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A shrub coppicing device, comprising a traction bracket and a coppicing assembly, wherein the traction bracket and the coppicing assembly are connected and fixed, characterized in that: The coping component includes a crushing chamber and a set of moving wheels located below the crushing chamber. The crushing chamber has an inlet and an outlet at the front and rear, respectively. The feed inlet is equipped with cutting components and air nozzles located on the left and right sides of the cutting components. The air nozzles are connected to a high-pressure air source device to provide high-pressure airflow.

2. The shrub coppicing tool according to claim 1, characterized in that: The crushing chamber contains a crushing cylinder that is rotatably mounted and equipped with a chamber-side motor that drives its rotation. The outer surface of the crushing cylinder is provided with a crushing blade assembly. Several separation plates are arranged on the inner wall of the crushing chamber. The separation plates are arranged at equal intervals along the axial direction of the crushing cylinder to form a single row, and multiple rows are also provided. The multiple rows of separation plates are arranged at intervals on the inner wall of the crushing chamber.

3. The shrub coppicing tool according to claim 1, characterized in that: The cutting component includes a fixed frame on which several sets of saw blades are rotatably mounted, and an independent drive motor is provided in the middle and on the outermost side to drive the saw blades. The drive motor and the saw blades are connected to the drive shaft of the outermost drive motor through a set of synchronous belt or chain tooth transmission mechanism.

4. The shrub coppicing tool according to claim 2, characterized in that: The crushing chamber includes a top cover near the discharge port, the top cover has several ventilation holes, and a row of separation plates is arranged below the top cover.

5. A shrub coppicing tool according to claim 2, characterized in that: The separating plate includes rectangular plates and right-angled trapezoidal plates. The rectangular plates are arranged in two rows near the feed inlet, and the right-angled trapezoidal plates are arranged in one row above the crushing cylinder. The height of the right-angled trapezoidal plates is greater than that of the rectangular plates, and the distance between adjacent rectangular plates in the same row is less than the distance between adjacent right-angled trapezoidal plates in the same row.

6. A shrub coppicing tool according to claim 3, characterized in that: The fixed frame is connected to two swing frames at both ends, and a servo motor for driving the swing frames to swing is installed and fixed outside the crushing chamber.

7. A shrub coppicing tool according to claim 2, characterized in that: The crushing blade assembly includes three sets of crushing blades. The crushing blade assembly adopts a forked structure design, with the crushing blade in the middle being vertical and the crushing blades on both sides having their cutting edges angled outwards.

8. A shrub coppicing tool according to claim 1, characterized in that: The movable wheel assembly includes a telescopic rod fixed below the crushing chamber and rollers rotatably connected to the lower end of the telescopic rod.

9. A shrub coppicing tool according to claim 1, characterized in that: The discharge port is rotatably equipped with a discharge cylinder and is fitted with a discharge motor that drives the discharge cylinder to rotate.

10. A shrub coppicing tool according to claim 1, characterized in that: The discharge port is slidably equipped with a baffle, and the baffle is equipped with a handle.

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