Tree cutter

Abstract

The utility model discloses a tree cutter which comprises a base, a cutting platform and a rotating frame, the cutting platform is arranged on the base, the rotating frame is connected to the cutting platform in a rotating mode, lifting rods are arranged at the two ends of the rotating frame respectively, the lifting rods are vertically arranged, a lifting frame is connected to the lifting rods in a sliding mode, and the lifting frame is connected to the cutting platform in a sliding mode. A cutting saw is connected to the lifting frame in a sliding mode, and the cutting saw moves front and back on the lifting frame to cut trees. According to the cutter, the cutting platform is arranged to place a to-be-cut tree, then the rotating frame, the lifting frame and the cutting saw are arranged, the lifting frame is arranged on the lifting rod of the rotating frame, the cutting saw can move up and down on the lifting frame, the cutting saw is connected with the lifting frame upwards in cooperation with a tension spring, and the cutting saw can move back and forth while the cutting saw moves back and forth. The cutting saw is pulled by the tension spring to move downwards to cut trees, the whole structure is practical and reliable, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of forestry machinery, in particular to a tree cutter. Background Art

[0002] In a forest farm, after some trees are cut, they still need to be cut further to segment the trees or cut out the required branch segments, so as to sample the trees and facilitate subsequent experiments and other analyses on the trees. Tree cutting is often done with a cutting machine. Existing cutting machines can usually only cut trees horizontally, that is, they can only cut relatively straight trees, and it is difficult to cut trees at a set angle. This makes it difficult to cut trees with irregular shapes and the adjustability is insufficient. Publication No. CN112440339A discloses a tree cutting machine, including a cutting machine chassis, a No. 1 cutting tool group is installed at one end of the cutting machine chassis, a No. 2 cutting tool group is installed at one end of the No. 1 cutting tool group, a rotating shaft is installed at one end of the No. 2 cutting tool group, an A-type cutting blade is installed at one end of the rotating shaft, an A-type cutting blade is installed at one end of the A-type cutting blade, a B-type cutting blade is installed at one end of the A-type cutting blade, a B-type cutting blade is installed at one end of the B-type cutting blade, a C-type cutting blade is installed at one end of the B-type cutting blade, and a C-type cutting blade is installed at one end of the C-type cutting blade. The cutter lacks adjustability and is difficult to transport. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a practical and highly adjustable tree cutter.

[0004] To achieve the above-mentioned object, the present invention provides a solution as follows: a tree cutter, comprising a base, a cutting platform, and a rotating frame, wherein the cutting platform is arranged on the base, the cutting platform is rotatably connected to the rotating frame, and lifting rods are respectively provided at both ends of the rotating frame, the lifting rods are vertically arranged, the lifting rods are slidably connected to the lifting frame, the lifting frame is slidably connected to the cutting saw, the cutting saw moves back and forth on the lifting frame to cut trees, and a tension spring is provided on the rotating frame, and the tension spring is upwardly connected to the lifting frame;

[0005] A limiting gear is provided on the rotating frame, the bottom of the cutting platform is slidably connected to the limiting block, the end of the limiting block is provided with a rack portion, and a return spring is provided at the bottom of the cutting platform, the return spring is connected to the limiting block, and the return spring is used to push the rack portion close to and block the limiting gear.

[0006] The beneficial effects of the present invention are as follows: to achieve tree cutting, the cutter is provided with a cutting platform to place the tree to be cut, and then a rotating frame, a lifting frame, and a cutting saw are provided. The lifting frame is connected to the lifting rod on the rotating frame by a lifting frame so that the cutting saw can move up and down, and the cutting saw can move up and down on the lifting frame. The lifting frame is connected upward with a tension spring, and while the cutting saw moves back and forth, the cutting saw can be pulled downward by the tension spring to cut the tree. The overall structure is practical and reliable, saving time and effort. At the same time, since the rotating frame rotates on the cutting platform to drive the cutting saw to rotate, the cutting saw can cut the tree at a set angle. The utility model is suitable for cutting trees of various shapes and has strong adjustability.

[0007] Furthermore, a rotating disk is provided in the middle of the cutting platform, the front end of the rotating frame is hinged to the front end of the rotating disk, and a sliding block is provided at the rear end of the rotating frame, and the sliding block is slidably connected to the rear end of the rotating disk. After adopting the above structure, the utility model realizes the rotation and positioning of the rotating frame.

[0008] Furthermore, the rotating disk has a fan-shaped structure.

[0009] Furthermore, the cutting saw includes a cutting main frame, a cutting saw blade, and a sliding rod. The cutting saw blade and the sliding rod are respectively arranged on the cutting main frame. The sliding rod and the cutting saw blade are arranged up and down. The cutting saw blade is used for cutting trees.

[0010] Furthermore, two guide blocks are formed on the bottom of the lifting frame, and the two guide blocks are vertically arranged, and a lifting groove is formed between the two guide blocks, and the saw blade moves in the lifting groove. After adopting the above structure, the utility model can guide the saw blade to move up and down and forward and backward.

[0011] Furthermore, a sliding sleeve is provided on the lifting frame, the sliding sleeve is arranged in a horizontal direction, and the sliding rod slides in the sliding sleeve. After the utility model adopts the above structure, it can drive the cutting saw to move forward and backward.

[0012] Furthermore, a limit frame is formed on the top of the lifting rod, and the limit frame is used to limit the cutting saw from exiting the lifting frame.

[0013] Furthermore, the cutting platform is provided with two first clamping blocks, which are spaced apart on the left and right sides, and the rotating disk is located between the two first clamping blocks. The cutting platform is provided with a mounting seat, and a locking screw is threadedly connected to the mounting seat. The locking screw is connected to the second clamping block, and the first clamping block and the second clamping block jointly clamp the tree to be cut. After adopting the above structure, the utility model can achieve the purpose of clamping and fixing the tree to be cut.

[0014] Furthermore, the locking screw is connected to a locking handwheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structure of the utility model is three-dimensional Figure 1 .

[0016] Figure 2 The overall structure of the utility model is three-dimensional Figure 2 .

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0018] Figure 4 This is a bottom view of the utility model (with the base hidden).

[0019] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0020] Among them, 1 is the base, 2 is the cutting platform, 21 is the limit block, 211 is the rack part, 22 is the return spring, 23 is the rotating disk, 24 is the first clamping block, 25 is the mounting seat, 26 is the locking screw, 261 is the locking handwheel, 27 is the second clamping block, 3 is the rotating frame, 31 is the lifting rod, 32 is the limit frame, 33 is the limit gear, 34 is the sliding block, 35 is the tension spring, 4 is the lifting frame, 41 is the guide block, 411 is the lifting slot, 42 is the sliding sleeve, 51 is the cutting body, 52 is the saw blade, and 53 is the sliding rod. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] See attached Figure 1 To the attached Figure 5As shown, a tree cutter includes a base 1, a cutting platform 2, and a rotating frame 3. The cutting platform 2 is arranged on the base 1, and the cutting platform 2 is rotatably connected to the rotating frame 3. Lifting rods 31 are respectively provided at both ends of the rotating frame 3. The lifting rods 31 are vertically arranged. The lifting rods 31 are slidably connected to the lifting frame 4, and the lifting frame 4 is slidably connected to the cutting saw. The cutting saw moves back and forth on the lifting frame 4 to cut trees. A tension spring 35 is provided on the rotating frame 3, and the tension spring 35 is upwardly connected to the lifting frame 4.

[0024] A limiting gear 33 is provided on the rotating frame 3, and the bottom of the cutting platform 2 is slidably connected to the limiting block 21. A rack portion 211 is provided at the end of the limiting block 21. A return spring 22 is provided at the bottom of the cutting platform 2, and the return spring 22 is connected to the limiting block 21. The return spring 22 is used to push the rack portion 211 close to and block the limiting gear 33.

[0025] In this embodiment, a rotating disk 23 is provided in the middle of the cutting platform 2, the front end of the rotating frame 3 is hinged to the front end of the rotating disk 23, and a sliding block 34 is provided at the rear end of the rotating frame 3. The sliding block 34 is slidably connected to the rear end of the rotating disk 23, and the rotating disk 23 has a fan-shaped structure.

[0026] In this embodiment, the cutting saw includes a cutting main frame 51, a cutting saw blade 52, and a sliding rod 53. The cutting saw blade 52 and the sliding rod 53 are respectively arranged on the cutting main frame 51, and the sliding rod 53 and the cutting saw blade 52 are arranged up and down. The cutting saw blade 52 is used to cut trees; two guide blocks 41 are formed at the bottom of the lifting frame 4, and the two guide blocks 41 are arranged vertically. A lifting groove 411 is formed between the two guide blocks 41, and the cutting saw blade 52 moves in the lifting groove 411; a sliding sleeve 42 is provided on the lifting frame 4, and the sliding sleeve 42 is arranged horizontally. The sliding rod 53 slides in the sliding sleeve 42.

[0027] In this embodiment, a limiting frame 32 is formed on the top of the lifting rod 31 , and the limiting frame 32 is used to limit the cutting saw from exiting the lifting frame 4 .

[0028] In this embodiment, two first clamping blocks 24 are provided on the cutting platform 2, and the two first clamping blocks 24 are spaced apart on the left and right. The rotating disk 23 is located between the two first clamping blocks 24, and a mounting seat 25 is provided on the cutting platform 2. A locking screw 26 is threadedly connected to the mounting seat 25, and the locking screw 26 is connected to the second clamping block 27. The first clamping block 24 and the second clamping block 27 jointly clamp the tree to be cut; the locking screw 26 is connected to a locking handwheel 261.

[0029] In this embodiment, the specific cutting process is as follows: first, the position of the rotating frame 3 is adjusted according to the angle to be cut, wherein the limit block 21 is pulled backward so that the rack portion 211 of the limit block 21 is separated from the limit gear 33 and the return spring 22 is in a compressed state, and then the rotating frame 3 is pushed to swing on the rotating disk 23 until it swings to the set angle, and then the limit block 21 is released. At this time, under the action of the rebound of the return spring 22, the rack portion 211 is pushed close to and blocks the limit gear 33, so that the cutting saw is set at the set angle;

[0030] Place the tree to be cut on the cutting platform 2, and make the required cutting position on the rotating disk 23. Then, turn the two locking hand wheels 261 to drive the locking screw 26 to rotate, thereby driving the second clamping block 27 to approach the first clamping block 24, until the first clamping block 24 and the second clamping block 27 jointly clamp the tree to be cut, completing the fixation of the tree. Then, pull and push the cutting saw forward and backward, and pull the lifting frame 4 and the cutting saw downward with the tension spring 35, so that the cutting saw can move forward and backward and downward at the same time, achieving tree cutting with labor-saving.

[0031] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any person skilled in the art may, without departing from the scope of the present invention, utilize the technical content disclosed above to make further possible variations and modifications to the present invention, or to modify the present invention into equivalent embodiments with equivalent variations. Therefore, any equivalent variations made in accordance with the principles of the present invention without departing from the scope of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A tree cutter, comprising a base (1), a cutting platform (2), and a rotating frame (3), characterized in that: The cutting platform (2) is arranged on the base (1), and the cutting platform (2) is rotatably connected to the rotating frame (3). The two ends of the rotating frame (3) are respectively provided with lifting rods (31), and the lifting rods (31) are arranged vertically. The lifting rods (31) are slidably connected to the lifting frame (4), and the lifting frame (4) is slidably connected to the cutting saw. The cutting saw moves forward and backward on the lifting frame (4) to cut trees. The rotating frame (3) is provided with a tension spring (35), and the tension spring (35) is upwardly connected to the lifting frame (4); A limit gear (33) is provided on the rotating frame (3), the bottom of the cutting platform (2) is slidably connected to a limit block (21), an end of the limit block (21) is provided with a rack portion (211), and a return spring (22) is provided at the bottom of the cutting platform (2), the return spring (22) is connected to the limit block (21), and the return spring (22) is used to push the rack portion (211) close to and block the limit gear (33).

2. A tree cutter according to claim 1, characterized in that: A rotating disk (23) is provided in the middle of the cutting platform (2), the front end of the rotating frame (3) is hinged to the front end of the rotating disk (23), and the rear end of the rotating frame (3) is provided with a sliding block (34), and the sliding block (34) is slidably connected to the rear end of the rotating disk (23).

3. The tree cutter according to claim 1, characterized in that: The cutting saw comprises a cutting main frame (51), a cutting saw blade (52), and a sliding rod (53). The cutting saw blade (52) and the sliding rod (53) are respectively arranged on the cutting main frame (51). The sliding rod (53) and the cutting saw blade (52) are arranged up and down. The cutting saw blade (52) is used for cutting trees.

4. A tree cutter according to claim 3, characterized in that: Two guide blocks (41) are formed at the bottom of the lifting frame (4). The two guide blocks (41) are vertically arranged, and a lifting groove (411) is formed between the two guide blocks (41). The saw blade (52) moves in the lifting groove (411).

5. A tree cutter according to claim 4, characterized in that: A sliding sleeve (42) is provided on the lifting frame (4), the sliding sleeve (42) is arranged in a horizontal direction, and the sliding rod (53) slides in the sliding sleeve (42).

6. The tree cutter according to claim 1, characterized in that: A limiting frame (32) is formed on the top of the lifting rod (31), and the limiting frame (32) is used to limit the cutting saw from exiting the lifting frame (4).

7. The tree cutter according to claim 2, characterized in that: Two first clamping blocks (24) are provided on the cutting platform (2), and the two first clamping blocks (24) are spaced apart from each other. The rotating disk (23) is located between the two first clamping blocks (24). A mounting seat (25) is provided on the cutting platform (2), and a locking screw (26) is threadedly connected to the mounting seat (25). The locking screw (26) is connected to a second clamping block (27). The first clamping block (24) and the second clamping block (27) jointly clamp the tree to be cut.

8. A tree cutter according to claim 7, characterized in that: The locking screw (26) is connected to a locking handwheel (261).

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