Branch removing structure and branch removing machine

Abstract

The invention discloses a branch removing structure and a branch removing machine. The branch removing structure comprises a branch removing cutter assembly, a conveying mechanism and a bamboo diameter adjusting mechanism which are all arranged on a rack. The branch removing cutter assembly and the conveying mechanism are sequentially connected to form a branch removing path, the bamboos are conveyed to the tail end of the branch removing path through the conveying mechanism after being subjected to branch removing through the branch removing cutter assembly, and the bamboo diameter adjusting mechanism is used for clamping the bamboos with different diameters on the conveying mechanism and providing pressure towards the conveying mechanism for the bamboos. By means of multi-structure collaborative design, high efficiency and stability of branch removing operation of sympodial bamboos are achieved, the bamboo diameter adjusting mechanism can flexibly meet the clamping requirements of bamboos with different diameters by means of a sliding hole-bolt-tension spring self-adaptive mechanism, and the stability of the conveying and branch removing process is ensured; the conveying mechanism provides uniform traction force and prevents slipping through cooperation of multi-roller synchronous driving and transmission assemblies, stable transportation of the bamboos is guaranteed, and the stability and quality of mechanical branch removing of the sympodial bamboos are also improved.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to a branch pruning structure and a branch pruning machine. Background Art

[0002] Currently, clumping bamboo is widely distributed in southern my country. Its rapid growth and strong regeneration capacity make it widely used in forestry, papermaking, construction, and horticulture. However, during its growth, clumping bamboo often produces a large number of dense side branches, which not only affect the quality of the bamboo but also increase the difficulty of subsequent processing. Therefore, timely removal of excess side branches is important for improving bamboo material utilization and optimizing bamboo forest management.

[0003] Currently, traditional bamboo pruning techniques rely primarily on manual labor or handheld tools (such as machetes and electric saws). These methods are labor-intensive, inefficient, and prone to damage to bamboo culms, severely hindering improvements in bamboo quality and the optimization of bamboo forest management. While existing motorized pruning equipment can partially alleviate efficiency issues, its rigid structural design makes it difficult to adapt to the wide range of bamboo culm diameters found in clumps of bamboo forests. This results in unstable pruning results and a high risk of culm damage. Furthermore, the complexity and maintenance costs of the equipment further limit its large-scale application. A new pruning solution that combines high efficiency, adaptability, and consistent pruning quality is urgently needed. Summary of the Invention

[0004] The embodiments of the present invention provide a branch pruning structure and a branch pruning machine to solve the problems that the branch pruning equipment in the prior art is difficult to adapt to the large difference in bamboo stalk diameters in clumped bamboo forests and has poor branch pruning quality and low stability.

[0005] In view of the above technical problems, an embodiment of the present invention provides a pruning structure, comprising a pruning knife assembly, a conveying mechanism and a bamboo diameter adjustment mechanism, all of which are arranged on a frame; the pruning knife assembly and the conveying mechanism are connected in sequence to form a pruning path, and after the bamboo is pruned by the pruning knife assembly, it is transported to the end of the pruning path via the conveying mechanism, and the bamboo diameter adjustment mechanism is used to clamp bamboos of different diameters on the conveying mechanism and provide pressure to the bamboo toward the conveying mechanism.

[0006] Optionally, the bamboo diameter adjustment mechanism includes a first support seat, a second support seat, a third support seat, a fourth support seat and a pressure cover fixedly mounted on the frame, the connecting lines of the installation points of the first support seat, the second support seat, the third support seat and the fourth support seat form a parallelogram, and the four ends of the pressure cover are respectively slidably connected to the side walls of the first support seat, the second support seat, the third support seat and the fourth support seat through sliding members.

[0007] Optionally, the sliding member includes a first bolt arranged at the four ends of the pressure cover, a strip-shaped sliding hole arranged on the side walls of the first support seat, the second support seat, the third support seat and the fourth support seat, a second bolt fixedly connected to the side walls of the first support seat, the second support seat, the third support seat and the fourth support seat and arranged opposite to the first bolt, and a nut threadedly connected to the first bolt and the second bolt.

[0008] Optionally, a first mounting hole is provided at the end of the first bolt, and a second mounting hole is provided at the end of the second bolt;

[0009] The bamboo diameter adjustment mechanism further includes a tension spring connected between the first mounting hole and the second mounting hole.

[0010] Optionally, the pruning knife assembly includes a mounting base fixedly connected to the frame, a pruning knife body arranged on the mounting base, and a lining strip arranged on the mounting base.

[0011] Optionally, the conveying mechanism includes a baffle ring fixedly mounted on the frame, a first conveying roller, a second conveying roller, a third conveying roller arranged on opposite sides of the inner wall of the baffle ring, and a transmission assembly for driving the first conveying roller, the second conveying roller and the third conveying roller to rotate.

[0012] Optionally, the transmission assembly includes a first bearing connected to the first conveying roller, a second bearing connected to the second conveying roller, a third bearing connected to the third conveying roller, a first driving sprocket connected to the second bearing, a second driving sprocket connected to the first driving sprocket, a first driven sprocket connected to the first bearing, and a second driven sprocket connected to the third bearing; the first driving sprocket and the second driving sprocket are coaxially arranged;

[0013] The second driving sprocket and the second driven sprocket, as well as the first driving sprocket and the first driven sprocket are connected via a transmission chain; the conveying mechanism further includes a driving motor connected to the first driving sprocket.

[0014] Optionally, the branch picking structure further comprises at least one lifting lug provided on the end surface of the pressure cover facing the conveying mechanism and a pressing roller linked to and mounted on the lifting lug.

[0015] Optionally, the branch picking structure further includes at least one guide plate disposed on the end surface of the pressure cover facing the conveying mechanism, and a plurality of rollers detachably mounted on the guide plate and arranged evenly.

[0016] The present invention also provides a branch pruning machine, comprising the above-mentioned branch pruning structure.

[0017] In the present invention, by integrating the pruning blade assembly, conveying mechanism, and bamboo diameter adjustment mechanism into the same frame and arranging them sequentially along the pruning path, an integrated "pruning-conveying-adaptive clamping" operation is achieved: the pruning blade assembly first removes the side branches. The pruning blade assembly is located at the front end of the pruning path. After the bamboo enters the cutting area of ​​the pruning blade assembly, combined with the continuous traction of the conveying mechanism, the side branches of the bamboo are evenly stressed when they collide with the pruning blade assembly, effectively removing small branches while reducing damage to the main stem. The bamboo diameter adjustment mechanism located above the conveying mechanism automatically adapts to bamboos of different diameters using a variable opening and continuously applies elastic downward pressure toward the conveying mechanism to ensure that the bamboo maintains close contact with the conveying mechanism and the pruning blade assembly. This collaborative design significantly improves the stability and accuracy of the pruning process. The cooperation of the bamboo diameter adjustment mechanism further enhances the contact reliability between the bamboo and the pruning blade assembly, thereby improving the pruning efficiency and product quality while ensuring the integrity of the bamboo culm. Ultimately, a highly efficient, low-loss, and adaptable mechanized pruning operation for clumping bamboo is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 1 is a schematic diagram of the overall structure of a branch removing structure according to an embodiment of the present invention;

[0020] Figure 2 1 is a schematic structural diagram of a pruning knife assembly of a pruning structure according to an embodiment of the present invention;

[0021] Figure 3 2 is a schematic structural diagram of a conveying mechanism of a branch removing structure according to an embodiment of the present invention;

[0022] Figure 4 The figure is a structural diagram of a bamboo diameter adjustment mechanism of a branch removing structure in one embodiment of the present invention.

[0023] The reference numerals in the specification are as follows:

[0024] 1- pruning knife assembly, 11- mounting seat, 12- pruning knife body, 13- lining strip, 2- conveying mechanism, 21- baffle ring, 22- first conveying roller, 23- second conveying roller, 24- third conveying roller, 25- transmission assembly, 251- first bearing, 252- second bearing, 253- third bearing, 254- first driving sprocket, 255- second driving sprocket, 256- first driven sprocket, 257- Second driven sprocket, 258-transmission chain, 26-drive motor, 3-bamboo diameter adjustment mechanism, 31-first support seat, 32-second support seat, 33-third support seat, 34-fourth support seat, 35-pressure cover, 36-tension spring, 41-lifting ear, 42-pressure roller, 43-guide plate, 44-roller, 5-sliding part, 51-first bolt, 52-strip sliding hole, 53-second bolt, 54-nut, 6-frame. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0028] like Figure 1As shown, an embodiment of the present invention provides a bamboo pruning structure, comprising a pruning blade assembly 1, a conveying mechanism 2, and a bamboo diameter adjustment mechanism 3, all of which are arranged on a frame 6; the pruning blade assembly 1 and the conveying mechanism 2 are connected in sequence to form a pruning path. After the bamboo is pruned by the pruning blade assembly 1, it is transported to the end of the pruning path via the conveying mechanism 2. The bamboo diameter adjustment mechanism 3 is used to clamp bamboos of different diameters on the conveying mechanism 2 and provide pressure for the bamboo to move toward the conveying mechanism 2. The pruning blade assembly 1 and the conveying mechanism 2 are installed in sequence on the frame 6, and the pruning path runs from the pruning blade assembly 1 to the end of the conveying mechanism 2. The bamboo diameter adjustment mechanism 3 is arranged above the conveying mechanism 2 to clamp the bamboo, and the opening formed between the bamboo diameter adjustment mechanism 3 and the conveying mechanism 2 can accommodate bamboos of different diameters. After the bamboo is pruned by the pruning blade assembly 1, it provides downward pressure during transportation by the conveying mechanism 2 to improve the stability of the bamboo during pruning and transportation.

[0029] In the present invention, by integrating the pruning knife assembly 1, the conveying mechanism 2 and the bamboo diameter adjustment mechanism 3 into the same frame 6 and arranging them in sequence along the pruning path, the "pruning-conveying-adaptive clamping" integrated operation is realized: the pruning knife assembly 1 first cuts off the side branches, and the pruning knife assembly 1 is located at the front end of the pruning path. After the bamboo enters the cutting area of ​​the pruning knife assembly 1, combined with the continuous traction force of the conveying mechanism 2, the side branches of the bamboo are evenly stressed when colliding with the pruning knife assembly 1, which can effectively remove small branches while reducing damage to the main stem; and the bamboo diameter adjustment mechanism 3 located above the conveying mechanism 2 automatically adapts to bamboos of different diameters using a variable opening, and ensures that the bamboo maintains close contact with the conveying mechanism 2 and the pruning knife assembly 1 by continuously applying elastic downward pressure toward the conveying mechanism 2. This collaborative design significantly improves the stability and accuracy of the pruning process. The cooperation of the bamboo diameter adjustment mechanism 3 further enhances the contact reliability between the bamboo and the pruning knife assembly 1, thereby improving the pruning efficiency and finished product quality while ensuring the integrity of the bamboo stalks, and ultimately realizing efficient, low-loss, and highly adaptable mechanized pruning operations for clumping bamboo.

[0030] In one embodiment, if Figure 1As shown, the bamboo diameter adjustment mechanism 3 includes a first support seat 31, a second support seat 32, a third support seat 33, a fourth support seat 34 and a pressure cover 35 fixedly mounted on the frame 6. The lines connecting the installation points of the first support seat 31, the second support seat 32, the third support seat 33 and the fourth support seat 34 form a parallelogram, and the four ends of the pressure cover 35 are respectively slidably connected to the side walls of the first support seat 31, the second support seat 32, the third support seat 33 and the fourth support seat 34 through sliding members 5. It can be understood that the first support seat 31 and the second support seat 32 are fixedly mounted at a preset distance at the front end of the frame 6 and are located behind the pruning knife assembly 1, and the third support seat 33 and the fourth support seat 34 are fixedly mounted at the rear end of the frame 6, so that any cross-section of their central axes is a parallelogram, preferably a rectangle, that is, the first support seat 31, the second support seat 32, the third support seat 33 and the fourth support seat 34 constitute a rectangular frame structure; the pressure cover 35 is covered on the top of the rectangular frame structure to form a quadrilateral-like structure, and the pressure cover 35 can move along the rectangular frame structure perpendicular to the machining direction, and the sliding paths of the four ends of the pressure cover 35 are equal but can be adjusted individually; that is, the distances of the four ends of the pressure cover 35 from the plane where the frame 6 is located are independently controllable; in this way, the size of the opening between the pressure cover 35 and the conveying mechanism 2 can be adjusted to adapt to bamboos of different diameters, thereby realizing pruning of bamboos of different diameters, thereby improving the reliability of pruning.

[0031] In another embodiment, the first support base 31 and the second support base 32 are fixedly mounted at a preset distance at the front end of the frame 6 and are located behind the pruning blade assembly 1, and the third support base 33 and the fourth support base 34 are hingedly mounted at the rear end of the frame 6. It can be understood that the third support base 33 and the fourth support base 34 are hingedly mounted at the rear end of the frame 6, forming a flexible support system with a fixed front end and a movable rear end, which effectively addresses the problem of tilting of long bamboos during transportation and improves the adaptability of the pruning mechanism to bamboos of different shapes: the first support base 31 and the second support base 32 are fixed at the front end of the frame 6 (behind the pruning blade) to provide stable pressure for the bamboo; the third support base 33 and the fourth support base 34 are hingedly mounted at the rear end of the frame 6. When the bamboo tilts due to its long length or uneven weight at both ends (for example, one end has entered the pruning path area while the other end is still being transported), the support base 33 and the fourth support base 34 can be rotated around the frame 6 to adjust the angle so that the support point always fits the actual posture of the bamboo. This "front fixed + rear floating" support layout not only ensures the basic linearity of the bamboo transportation path, but also offsets the risk of offset caused by tilting through the mobility of the rear-end support, avoiding position deviation or collision damage of the bamboo due to unstable posture.

[0032] In one embodiment, if Figure 1As shown, the sliding member 5 includes first bolts 51 provided at the four ends of the pressure cover 35, strip-shaped sliding holes 52 provided on the side walls of the first support seat 31, the second support seat 32, the third support seat 33, and the fourth support seat 34, second bolts 53 fixedly connected to the side walls of the first support seat 31, the second support seat 32, the third support seat 33, and the fourth support seat 34 and arranged opposite to the first bolts 51, and nuts 54 threadedly connected to the first bolts 51 and the second bolts 53. It can be understood that the strip-shaped sliding holes 52 are provided on the side walls of the first support seat 31, the second support seat 32, the third support seat 33, and the fourth support seat 34, and each support seat is provided with a second bolt 53. The second bolt 53 is fixedly connected between each support seat and the frame 6 and is fixed by the nut 54. The first bolt 51 on each support seat is passed through its strip-shaped sliding hole 52 and is threadedly connected to the nut 54. The diameter of the nut 54 is larger than the diameter of the strip-shaped sliding hole 52. In this way, the nut 54 acts as a limit and prevents the first bolt 51 from escaping from the strip-shaped sliding hole 52. It can be understood that when bamboos of different diameters enter the pruning knife assembly 1, the first bolt 51 can slide vertically along the strip-shaped sliding hole 52, driving the four ends of the pressure cover 35 to move synchronously, so that the opening between the pressure cover 35 and the conveying mechanism 2 automatically matches the change in bamboo diameter; thereby significantly improving the adaptability of the pruning structure to different bamboo diameters, ensuring the centration and uniformity of the bamboo during pruning and conveying, thereby improving the pruning accuracy and operation stability.

[0033] In one embodiment, if Figure 1 As shown, the end of the first bolt 51 is provided with a first mounting hole, and the end of the second bolt 53 is provided with a second mounting hole. The bamboo diameter adjustment mechanism 3 also includes a tension spring 36 connected between the first mounting hole and the second mounting hole. It is understood that the second bolt 53 is fixed, while the first bolt 51 slides in the strip-shaped sliding hole 52 to adapt to changes in the bamboo diameter. The elastic tension of the tension spring 36 enables the bamboo diameter adjustment mechanism 3 to dynamically and stably clamp the bamboo. Specifically, when the bamboo diameter changes, the pressure cover 35, driven by the first bolt 51, moves along the strip-shaped sliding holes 52 of the four support seats, causing the spacing between the first bolt 51 and the second bolt 53 on the same support seat to change. The tension spring 36 is stretched or compressed due to this spacing change, generating an elastic restoring force opposite to the displacement direction, which is converted into a continuous downward pressure on the pressure cover 35. This pressure can be dynamically adjusted with the bolt spacing, ensuring that bamboos of different diameters are stably clamped during transportation and pruning, avoiding incomplete pruning or damage to the main stem due to shaking or deviation. It also achieves a "stepless adjustment" clamping effect through the adaptability of elastic deformation. The contact stability between the bamboo and the pruning knife can be maintained without additional power input, significantly improving the equipment's compatibility with bamboos of multiple specifications and operational reliability.

[0034] In one embodiment, if Figures 1 to 2 As shown, the pruning knife assembly 1 includes a mounting base 11 fixedly connected to the frame 6, a pruning knife body 12 arranged on the mounting base 11, and an inner lining strip 13 arranged on the mounting base 11. It can be understood that the pruning knife body 12 is rigidly connected to the frame 6 through the mounting base 11 to form a stable base, and the inner lining strip 13 is embedded in the mounting base 11, which can effectively resist the impact force of the bamboo side branches during the pruning process, significantly enhance its bending and impact resistance, and avoid the tool offset caused by the deformation of the mounting base due to force, ensuring that the pruning knife body 12 maintains precise positioning during high-speed cutting. The pruning knife body 12 can be fastened to the mounting base 11 by bolts to form a detachable rigid connection, which not only improves the operating stability of the pruning knife assembly 1, but also facilitates quick replacement and maintenance. The overall structure effectively reduces vibration and the offset of the pruning knife body 12, ensuring the pruning accuracy and bamboo stalk surface quality.

[0035] In one embodiment, if Figure 1 and Figure 3 As shown, the conveying mechanism 2 includes a baffle ring 21 fixedly mounted on the frame 6, a first conveyor roller 22, a second conveyor roller 23, and a third conveyor roller 24 disposed on opposite sides of the inner wall of the baffle ring 21, and a transmission assembly 25 for driving the first, second, and third conveyor rollers 22, 23, and 24. Driven by the transmission assembly 25, the first, second, and third conveyor rollers 22, 23, and 24 rotate synchronously to provide uniform and continuous traction. The roller surfaces can be coated with a rubber layer to generate sufficient friction with the bamboo, preventing slippage and steadily pulling the bamboo along the pruning path, ensuring accurate collision with the pruning blades and triggering the side branch culling operation. Furthermore, the multi-point support provided by the three rollers and the position limiter on the baffle ring 21 jointly constrain the bamboo's trajectory, preventing deviation or jamming, and ensuring sufficient collision between the bamboo and the pruning blade body 12, achieving efficient and low-loss mechanized pruning.

[0036] In one embodiment, if Figure 1 and Figure 3As shown, the transmission assembly 25 includes a first bearing 251 connected to the first conveying roller 22, a second bearing 252 connected to the second conveying roller 23, a third bearing 253 connected to the third conveying roller 24, a first driving sprocket 254 connected to the second bearing 252, a second driving sprocket 255 connected to the first driving sprocket 254, a first driven sprocket 256 connected to the first bearing 251, and a second driven sprocket 257 connected to the third bearing 253; the first driving sprocket 254 and the second driving sprocket 255 are coaxially arranged; the second driving sprocket 255 and the second driven sprocket 257, as well as the first driving sprocket 254 and the first driven sprocket 256 are all connected by a transmission chain 258; the conveying mechanism 2 also includes a driving motor 26 connected to the first driving sprocket 254. It can be understood that the first bearing 251, the second bearing 252 and the third bearing 253 can adopt UCFC series bearings, and the output shaft of the drive motor 26 is connected to the first driving sprocket 254. When the drive motor 26 is driven to work, it drives the first driving sprocket 254 to rotate, drives the second driving sprocket 255 to rotate, and then drives the first driven sprocket 256 and the second driven sprocket 257 to rotate, and finally drives the first conveyor roller 22, the second conveyor roller 23 and the third conveyor roller 24 to rotate.

[0037] As can be understood, the transmission assembly 25, through the coordinated design of sprocket linkage and bearing support, achieves synchronous and stable drive of the three conveyor rollers, providing reliable power for the continuous conveying of bamboo. The drive motor 26, through the coaxial linkage of the first driving sprocket 254 and the second driving sprocket 255, synchronously transmits power to the first driven sprocket 256 and the second driven sprocket 257, thereby driving the first conveyor roller 22, the second conveyor roller 23, and the third conveyor roller 24 to rotate at the same speed. This synchronous transmission mechanism ensures that the conveyor rollers evenly distribute the pulling force on the bamboo, preventing bamboo from shifting or slipping due to speed differences. The use of UCFC series bearings improves the bearing's load capacity and impact resistance, adapting to load fluctuations during bamboo transportation.

[0038] In one embodiment, if Figure 4As shown, the bamboo pruning mechanism also includes at least one lug 41 provided on the end surface of the pressure cover 35 facing the conveyor mechanism 2, and a pressure roller 42 mounted on the lug 41. The number of pressure rollers 42 can be adjusted as needed. Preferably, two pressure rollers 42 are provided, each corresponding to a lug 41 fixedly mounted on the pressure cover 35. The pressure roller 42 is aligned vertically with the first, second, and third conveyor rollers 22, 23, and 24, ensuring that the bamboo enters directly beneath it, enhancing the stability of the pruning process. The synchronous alignment of the pressure roller 42 with the three conveyor rollers keeps the bamboo confined to its vertical centerline during transport, preventing deviations in the pruning position caused by lateral deviation or bouncing. As the bamboo is pushed forward by the three conveyor rollers, the pressure roller 42 also applies a moderate downward pressure, which, in conjunction with the friction of the three conveyor rollers, further enhances the bamboo's linear motion trajectory.

[0039] In one embodiment, if Figure 4 As shown, the pruning structure also includes at least one guide plate 43 positioned on the end surface of the pressure cover 35 facing the conveying mechanism 2, and a plurality of evenly spaced rollers 44 detachably mounted on the guide plate 43. It is understood that the number of guide plates 43 can be set as needed and can match the number of pressure rollers 42. Preferably, there are two guide plates 43, with one pressure roller 42 positioned between two adjacent guide plates 43. Removable mounting methods for the rollers 44 and guide plates 43 include, but are not limited to, latch connections, snap connections, and screw connections. The guide plate 43 is also aligned vertically with the first, second, and third conveying rollers 22, 23, and 24. The arrangement of the guide plates 43 and rollers 44 further enhances low-resistance guidance and posture stability during bamboo conveying. Guide plates 43 and rollers 44 form a rolling guide channel, providing a clear path for the bamboo's movement. Rolling friction replaces sliding friction through rolling contact between rollers 44 and the bamboo, limiting radial deviation and reducing transport resistance, thereby achieving smooth, low-loss, and directional transport. Furthermore, the flexible rotation of rollers 44 evenly distributes contact pressure, preventing localized extrusion and deformation.

[0040] The present invention also provides a pruning machine including the above-mentioned pruning structure. In the pruning machine of the above-mentioned embodiment of the present invention, the pruning structure includes a pruning blade assembly 1, a conveying mechanism 2, and a bamboo diameter adjustment mechanism 3, all of which are arranged on a frame 6. The pruning blade assembly 1 and the conveying mechanism 2 are sequentially connected to form a pruning path. After being pruned by the pruning blade assembly 1, the bamboo is transported to the end of the pruning path via the conveying mechanism 2. The bamboo diameter adjustment mechanism 3 is used to clamp bamboos of different diameters on the conveying mechanism 2 and apply pressure to the bamboos toward the conveying mechanism 2.

[0041] In the debranching machine of the above embodiment of the present invention, a multi-structure collaborative design is used to achieve high efficiency, stability and high compatibility of clumping bamboo debranching operations: the bamboo diameter adjustment mechanism 3 utilizes the adaptive mechanism of the sliding hole-bolt-tension spring 36, which can flexibly adapt to the clamping requirements of bamboos of different diameters, ensuring the stability of the transportation and debranching process; the conveying mechanism 2 cooperates with the multi-roller synchronous drive and transmission assembly 25 to provide uniform traction and prevent slipping, ensuring the smooth transportation of bamboo, and significantly improving the stability and quality of the mechanized debranching of clumping bamboo as a whole.

[0042] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. A branch removing structure, characterized in that: The invention comprises a pruning knife assembly (1), a conveying mechanism (2) and a bamboo diameter adjustment mechanism (3) all of which are arranged on a frame (6); the pruning knife assembly (1) and the conveying mechanism (2) are connected in sequence to form a pruning path; after bamboos are pruned by the pruning knife assembly (1), they are transported to the end of the pruning path via the conveying mechanism (2); the bamboo diameter adjustment mechanism (3) is used to clamp bamboos of different diameters on the conveying mechanism (2) and provide pressure for the bamboos in the direction of the conveying mechanism (2).

2. The branch removing structure according to claim 1, characterized in that: The bamboo diameter adjustment mechanism (3) comprises a first support base (31), a second support base (32), a third support base (33), a fourth support base (34) and a pressure cover (35) fixedly mounted on the frame (6); the connecting lines of the mounting points of the first support base (31), the second support base (32), the third support base (33) and the fourth support base (34) form a parallelogram; the four ends of the pressure cover (35) are respectively slidably connected to the side walls of the first support base (31), the second support base (32), the third support base (33) and the fourth support base (34) via sliding members (5).

3. The branch removing structure according to claim 2, characterized in that: The sliding member (5) includes a first bolt (51) arranged at the four ends of the pressure cover (35), a strip-shaped sliding hole (52) arranged on the side walls of the first support seat (31), the second support seat (32), the third support seat (33) and the fourth support seat (34), a second bolt (53) fixedly connected to the side walls of the first support seat (31), the second support seat (32), the third support seat (33) and the fourth support seat (34) and arranged opposite to the first bolt (51), and a nut (54) threadedly connected to the first bolt (51) and the second bolt (53).

4. The branch removing structure according to claim 3, characterized in that: A first mounting hole is provided at the end of the first bolt (51), and a second mounting hole is provided at the end of the second bolt (53); The bamboo diameter adjustment mechanism (3) further comprises a tension spring (36) connected between the first mounting hole and the second mounting hole.

5. The branch removing structure according to claim 1, characterized in that: The pruning knife assembly (1) comprises a mounting seat (11) fixedly connected to the frame (6), a pruning knife body (12) arranged on the mounting seat (11), and an inner lining strip (13) arranged on the mounting seat (11).

6. The branch removing structure according to claim 5, characterized in that: The conveying mechanism (2) comprises a baffle ring (21) fixedly mounted on the frame (6), a first conveying roller (22), a second conveying roller (23), a third conveying roller (24) arranged on opposite sides of the inner wall of the baffle ring (21), and a transmission assembly (25) for driving the first conveying roller (22), the second conveying roller (23), and the third conveying roller (24) to rotate.

7. The branch removing structure according to claim 6, characterized in that: The transmission assembly (25) comprises a first bearing (251) connected to the first conveying roller (22), a second bearing (252) connected to the second conveying roller (23), a third bearing (253) connected to the third conveying roller (24), a first driving sprocket (254) connected to the second bearing (252), a second driving sprocket (255) connected to the first driving sprocket (254), a first driven sprocket (256) connected to the first bearing (251), and a second driven sprocket (257) connected to the third bearing (253); the first driving sprocket (254) and the second driving sprocket (255) are coaxially arranged; The second driving sprocket (255) and the second driven sprocket (257), as well as the first driving sprocket (254) and the first driven sprocket (256), are connected via a transmission chain (258); the conveying mechanism (2) further comprises a driving motor (26) connected to the first driving sprocket (254).

8. The branch removing structure according to claim 2, characterized in that: The branch picking structure further comprises at least one lifting lug (41) provided on the end surface of the pressure cover (35) facing the conveying mechanism (2) and a pressing roller (42) linked to and mounted on the lifting lug (41).

9. The branch removing structure according to claim 8, characterized in that: The branch picking structure further comprises at least one guide plate (43) disposed on the end surface of the pressure cover (35) facing the conveying mechanism (2) and a plurality of rollers (44) detachably mounted on the guide plate (43) and arranged evenly.

10. A branch pruning machine, characterized in that: The invention comprises the branch removing structure according to any one of claims 1 to 9.

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