Rotary log grapple for forestry tree felling

Abstract

The utility model relates to the technical field of felling, and particularly discloses a rotary log grapple for felling forestry trees, which comprises a rotary log grapple body, a first fixing pin is inserted into the lower end of the rotary log grapple body; the first fixing pin is sleeved with a replacement sleeve. An avoiding groove is formed in the replacement sleeve; a nut pair is inserted into the avoiding groove; the nut pair is sleeved with a mowing unit; the first fixing pin is inserted into the rotary log grabber body and the replacement sleeve to achieve installation, then the rotary log grabber body can move along with movement of the rotary log grabber body, and after vines are grabbed, the rotary log grabber body rotates to drive the mowing unit to tidily cut concentrated vine rhizomes, so that the mowing efficiency is improved. Therefore, irregular rhizomes do not need to be cut again, meanwhile, the efficiency of treating a large number of vines is further improved, and the problem that the rhizomes cannot be cut neatly when vines are grabbed and transferred by an existing log grabber is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of felling wood, in particular to a rotary wood grabber for felling forestry trees. Background Art

[0002] A rotary log grab is an attachment to construction machinery, typically used for lumber handling, construction waste removal, garbage disposal, and other applications requiring the grabbing and carrying of heavy objects. This equipment is designed with a rotation function that allows it to rotate 360 ​​degrees or within a specific angle, allowing the operator to flexibly adjust the grab angle based on work requirements.

[0003] The Chinese utility model patent with publication number CN219791627U disclosed a rotary wood grabber with an angle adjustment function on October 3, 2023, which relates to the technical field of excavator accessories. The rotary wood grabber comprises an upper connecting portion, an angle adjustment portion, a rotating portion, and a gripping portion. The angle adjustment portion comprises a disc seat fixedly connected to the upper connecting portion, a disc body being provided on the side of the disc seat away from the upper connecting portion, a rotating rod being provided on the disc seat, the rotating rod being rotationally connected to the disc body, an electric push rod being rotationally connected to the disc body, the electric push rod piston rod being rotationally connected to the rotating rod, and the disc body being fixedly connected to the rotating portion on the side away from the disc seat. The rotary wood grabber with an angle adjustment function provided by the utility model can complete the gripping work at any angle when performing multi-angle gripping work by providing the angle adjustment portion and the rotating portion. The tilted gripping work at a certain angle can be completed without moving the entire excavator body for coordination, which is extremely convenient.

[0004] However, the above-mentioned disclosed solutions have the following shortcomings: the rotary wood grabbers in the existing technology can only realize the two functions of grabbing and rotating. To a certain extent, it is very convenient to grab wood, but the function cannot be further expanded. For vine plants in the process of forestry logging, after grabbing, the roots of the vines can only be torn off by rotation, so the broken roots will be of different lengths, resulting in the need to manually cut the roots of different lengths. Utility Model Content

[0005] The purpose of the present invention is to solve the technical problem that the rotary wood grabber in the prior art can only realize the two functions of grabbing and rotating. It is very convenient to grab wood to a certain extent, but the function cannot be further expanded. For vine-like plants in the process of forestry felling, the roots of the vines can only be torn off by rotation after grabbing, so the broken roots will be of different lengths, resulting in the need to manually cut the roots of different lengths. A rotary wood grabber for felling trees in forestry is provided.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The utility model describes a rotary wood grabber for felling forestry trees, comprising a rotary wood grabber body; a first fixing pin is inserted into the lower end of the rotary wood grabber body; a replacement sleeve is sleeved on the first fixing pin; an avoidance groove is provided on the replacement sleeve; a nut pair is inserted in the avoidance groove; and a mowing unit is sleeved on the nut pair.

[0008] Furthermore, the mowing unit includes a flat plate; the flat plate is sleeved on a nut pair; a unit head is threadedly fixed to the flat plate and the hole in the avoidance groove; a traction rope is fixed between the unit heads; a plurality of threaded holes are symmetrically opened on the flat plate; a plurality of stepped threaded columns are threadedly fixed to the threaded holes; and a cutting knife is fixed to the stepped threaded column.

[0009] Furthermore, a hidden groove is provided on the lower surface of the flat plate; a quick-release pin is inserted into the hidden groove; and a functional square tube is sleeved on the quick-release pin.

[0010] Furthermore, a plurality of soil-turning pointed pipes are fixedly connected to the lower surface of the functional square tube.

[0011] Furthermore, when the replacement sleeve is in a vertical state, the flat plate is perpendicular to the replacement sleeve under the traction of the traction rope.

[0012] Furthermore, the functional square tube contacts the hidden groove surface.

[0013] The utility model provides a rotary wood grabber for felling forestry trees, which has the following beneficial effects:

[0014] 1. The utility model is installed by inserting a first fixing pin into the rotary wood grapple body and the replacement sleeve. The wood grapple body then moves with the movement of the rotary wood grapple body. After grabbing the vines, the rotary wood grapple body rotates, driving the mowing unit to neatly cut the concentrated vine roots, eliminating the need to cut uneven roots again. This further improves the efficiency of processing large amounts of vines and solves the problem of existing wood grapples being unable to neatly cut roots when grabbing and transferring vines.

[0015] 2. The utility model adjusts the angle of the cutting knife by rotating the angle of the stepped threaded column in the threaded hole, so that the best cutting angle can be selected according to different plants; the traction rope ensures that the angle between the flat plate and the replacement sleeve will not be greater than ninety degrees, so that it can move with the mutual movement of the rotating wood grabber body, and at the same time, the flat plate will not affect the opening and closing action of the rotating wood grabber body to grab the vine plants vertically downward, and it is located on the ground, so that after grabbing the vines, the rotating wood grabber body rotates with the cutting knife to cut the rhizomes of the vines, so that the rhizomes of the vines are cut relatively neatly and in a short distance, so that after cleaning the vines, there is no need to cut the excessively long rhizomes, which solves the problem that the existing wood grabber cannot cut the rhizomes neatly when grabbing the vines for transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific embodiments of the present invention are described in further detail below with reference to the accompanying drawings;

[0017] Figure 1 This is a front structural diagram of the present invention;

[0018] Figure 2 This is a first axonometric structural diagram of the present invention;

[0019] Figure 3 This is a second axonometric structural diagram of the present invention.

[0020] Explanation of the numbers in the figure: 1. Rotating wood grabber body; 2. Replacement sleeve; 3. First fixing pin; 4. Avoidance groove; 5. Nut pair; 6. Flat plate; 7. Unit head; 8. Traction rope; 9. Threaded hole; 10. Stepped thread column; 11. Cutting knife; 12. Hidden groove; 13. Quick-release pin; 14. Functional square tube; 15. Soil-turning tip tube. DETAILED DESCRIPTION

[0021] 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.

[0022] 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.

[0023] It should be noted that all directional indications in the embodiments of the present invention (such as up-down-left-right-front-back...) are only used to explain the relative position relationship - movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0024] See also Figure 1-3 As shown, a rotary wood grabber for felling forestry trees comprises a rotary wood grabber body 1; a first fixing pin 3 is inserted into the lower end of the rotary wood grabber body 1; a replacement sleeve 2 is sleeved on the first fixing pin 3; an avoidance groove 4 is provided on the replacement sleeve 2; a nut pair 5 is inserted in the avoidance groove 4; a mowing unit is sleeved on the nut pair 5; when working, the installation is achieved by inserting the first fixing pin 3 into the rotary wood grabber body 1 and the replacement sleeve 2, and then the wood grabber body 1 can move with the movement of the rotary wood grabber body 1. After grabbing the vines, the rotary wood grabber body 1 rotates, driving the mowing unit to neatly cut the concentrated vine roots, thereby eliminating the need to cut the uneven roots again. At the same time, the efficiency of processing a large number of vines is further improved, solving the problem that the existing wood grabber cannot neatly cut the roots when grabbing the vines for transfer.

[0025] The mowing unit includes a flat plate 6; the flat plate 6 is sleeved on the nut pair 5; a unit head 7 is threadedly fixed to the flat plate 6 and the hole in the avoidance groove 4; a traction rope 8 is fixed between the unit heads 7; a plurality of threaded holes 9 are symmetrically opened on the flat plate 6; a plurality of stepped threaded columns 10 are threadedly fixed to the threaded holes 9; a cutting knife 11 is fixed to the stepped threaded column 10; when working, the angle of the cutting knife 11 is adjusted by rotating the stepped threaded column 10 in the threaded hole 9, so that the best cutting angle can be selected according to different plants; the flat plate 6 is made to move by the traction rope 8 The angle between the replacement sleeve 2 will not be greater than ninety degrees, so that it can move with the mutual movement of the rotating wood grabber body 1, and at the same time, the flat plate 6 will not affect the opening and closing movement of the rotating wood grabber body 1 to grab the vine plants vertically downward, and is located on the ground. Therefore, after grabbing the vines, the rotating wood grabber body 1 rotates with the cutting knife 11 to cut the rhizomes of the vines, so that the rhizomes of the vines are cut relatively neatly and in a short distance, so that after cleaning the vines, there is no need to cut the excessively long rhizomes, which solves the problem that the existing wood grabber cannot cut the rhizomes neatly when grabbing the vines for transfer.

[0026] A hidden groove 12 is provided on the lower surface of the flat plate 6; a quick-release pin 13 is inserted into the hidden groove 12; a functional square tube 14 is sleeved on the quick-release pin 13; when in operation, the functional square tube 14 can enhance the structural strength of the flat plate 6, so that it can maintain its own shape during long-term use, thereby extending its service life.

[0027] A plurality of soil-turning pointed tubes 15 are fixedly connected to the lower surface of the functional square tube 14. When working, the soil-turning pointed tubes 15 are inserted into the soil, and can rotate in the soil along with the rotation of the rotary wood grabber body 1, thereby playing the function of turning the soil and turning out the roots and stems of plants, thereby saving manpower and improving efficiency, and solving the problem that the existing wood grabber cannot turn the soil.

[0028] When the replacement sleeve 2 is in a vertical state, the flat plate 6 is perpendicular to the replacement sleeve 2 under the traction of the traction rope 8; during operation, the flat plate 6 is constrained to rotate around the nut pair 5 by the tension of the traction rope 8, so that the horizontal pitch angle of the flat plate 6 can be controlled by adjusting the opening and closing angle of the rotating wood grabber body 1, so that when grabbing vine plants, the flat plate 6 can be made to fit the ground horizontally, and then as the rotating wood grabber body 1 rotates, the rhizomes of the vines are cut at close range by the cutting knife 11, so that they will not be pulled and broken to form rhizomes of different lengths, and there is no need to cut them again, which solves the problem that the existing wood grabbers do not have the function of neatly cutting the rhizomes of the vines.

[0029] The functional square tube 14 is in surface contact with the hidden groove 12; during operation, the functional square tube 14 is in surface contact with the hidden groove 12, so that the functional square tube 14 will not rotate around the quick-release pin 13, so that when the rotating wood grabber body 1 rotates, no relative movement occurs, so that the soil turning tip tube 15 can be inserted into the soil and rotate around the excavator arm to turn the soil and rake the roots, so that the area of ​​the soil turning and raking is large and the efficiency is high, forestry can be quickly reclaimed, and the problem that the existing wood grabber cannot turn the soil is solved.

[0030] By adopting the above scheme, the utility model is installed by inserting the first fixing pin 3 into the rotary wood grabber body 1 and the replacement sleeve 2 when in use. Then, it can move with the movement of the rotary wood grabber body 1. After grabbing the vines, the rotary wood grabber body 1 rotates, driving the mowing unit to neatly cut the concentrated vine roots, thereby eliminating the need to cut the uneven roots again. At the same time, the efficiency of processing a large number of vines is further improved, solving the problem that the existing wood grabber cannot neatly cut the roots when grabbing vines for transfer; by rotating the angle of the stepped threaded column 10 in the threaded hole 9, the angle of the cutting knife 11 is adjusted, so that it can be selected according to different plants. The best cutting angle is selected; the traction rope 8 makes the angle between the flat plate 6 and the replacement sleeve 2 not greater than ninety degrees, so that it can move with the mutual movement of the rotating wood grabber body 1, and at the same time does not make the flat plate 6 vertically downward affect the opening and closing movement of the rotating wood grabber body 1 to grab the vine plant, and is located on the ground, so that after grabbing the vine, the rotating wood grabber body 1 rotates with the cutting knife 11 to cut the rhizome of the vine, so that the rhizome of the vine is cut relatively neatly and in a short distance, so that after cleaning the vine, there is no need to cut the excessively long rhizome, which solves the problem that the existing wood grabber cannot cut the rhizome neatly when grabbing the vine for transfer; through the functional square tube 14 The structural strength of the flat plate 6 can be enhanced, so that it can maintain its own shape during long-term use, thereby extending its service life; by inserting the soil-turning tip tube 15 into the soil, it can rotate in the soil as the rotating wood grabber body 1 rotates, thereby playing the role of turning the soil, and can also turn out the roots and stems of plants, thereby saving manpower and improving efficiency, and solving the problem that the existing wood grabber cannot turn the soil; the flat plate 6 is constrained to rotate around the nut pair 5 by the tension of the traction rope 8, so that the horizontal pitch angle of the flat plate 6 can be controlled by adjusting the opening and closing angle of the rotating wood grabber body 1, so that when grabbing vines, the flat plate 6 can be horizontally attached to the ground, and then with the rotation of the wood grabber The rotation of the wood grab body 1 allows the cutter 11 to cut the rhizomes of the vines at close range, so that they will not be pulled and broken to form rhizomes of different lengths, and there is no need to cut them again, which solves the problem that the existing wood grabbers cannot neatly cut the rhizomes of the vines; the functional square tube 14 is in surface contact with the hidden groove 12, so that the functional square tube 14 will not rotate around the quick-release pin 13, so that when the wood grabber body 1 rotates, no relative movement occurs, so that the soil turning tip tube 15 can be inserted into the soil and rotate around the excavator arm to turn the soil and rake the roots, so that the area of ​​the soil turning and raking is large and the efficiency is high, and forestry can be quickly reclaimed, solving the problem that the existing wood grabbers cannot turn the soil.

[0031] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A rotary log grapple for felling forestry trees, characterized in that: The invention comprises a rotary wood grabber body (1); a first fixing pin (3) is inserted into the lower end of the rotary wood grabber body (1); a replacement sleeve (2) is sleeved on the first fixing pin (3); an escape groove (4) is provided on the replacement sleeve (2); a nut pair (5) is inserted into the escape groove (4); and a mowing unit is sleeved on the nut pair (5).

2. The rotary log grapple for felling forestry trees according to claim 1, characterized in that: The mowing unit comprises a flat plate (6); the flat plate (6) is sleeved on a nut pair (5); a unit head (7) is fixedly connected to the flat plate (6) and the inner opening of the avoidance groove (4) by thread; a traction rope (8) is fixedly connected between the unit heads (7); a plurality of threaded holes (9) are symmetrically opened on the flat plate (6); a plurality of stepped threaded columns (10) are fixedly connected to the inner threads of the threaded holes (9); a cutting knife (11) is fixedly connected to the stepped threaded column (10).

3. The rotary log grapple for felling forestry trees according to claim 2, characterized in that: A hidden groove (12) is provided on the lower surface of the flat plate (6); a quick-release pin (13) is inserted into the hidden groove (12); and a functional square tube (14) is sleeved on the quick-release pin (13).

4. The rotary log grapple for felling forestry trees according to claim 3, characterized in that: A plurality of soil-turning pointed pipes (15) are fixedly connected to the lower surface of the functional square pipe (14).

5. The rotary log grapple for felling forestry trees according to claim 4, characterized in that: When the replacement sleeve (2) is in a vertical state, the flat plate (6) is perpendicular to the replacement sleeve (2) under the traction of the traction rope (8).

6. The rotary log grapple for felling forestry trees according to claim 5, characterized in that: The functional square tube (14) is in surface contact with the hidden groove (12).

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