CN210470533U

CN210470533U - Reciprocating saw tree mover

Info

Publication number: CN210470533U
Application number: CN201921440564.1U
Authority: CN
Inventors: 童燮; 万茂松; 宋可; 王志恒; 孙泉; 黄天逸; 王康; 孙嵩松
Original assignee: Nanjing Forestry University
Current assignee: Nanjing Forestry University
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-05-08
Anticipated expiration: 2029-08-29

Abstract

The reciprocating saw tree mover is simple in structure, small in size, convenient to operate and use, capable of achieving various tree digging operations by one person and high in efficiency. The saw frame is provided with an annular bracket with an opening and a sliding block arranged on the bracket in a sliding way, and a guide groove and a sliding groove which are communicated are arranged on the saw frame; the saw blade comprises a handle part at the upper part and a working part with sawteeth at the lower part, the handle part is arranged in the guide groove in a reciprocating sliding manner, the working part extends into the sliding groove, and the sawteeth are arranged outside the sliding groove and positioned at one side of the saw frame; a saw blade driving device for driving the saw blade to slide in the guide groove and the sliding groove in a reciprocating manner is arranged on the saw frame; the saw frame is arranged on the sliding block in a swinging mode of at least 180 degrees, and can swing 90 degrees from a 0-degree position which is located on the same plane with the support to a sawing position: the saw frame and the saw blade extend downwards from the periphery of the support and towards the central axis of the support, and the lower end of the saw blade extends to the central axis of the support; a locking device which is detachable and used for locking the saw frame at a sawing position is arranged between the saw frame and the sliding block.

Description

Reciprocating saw tree mover

Technical Field

This patent belongs to forestry machinery technical field, concretely relates to tree mover.

Background

CN2018108160327 discloses a tree digging device and a tree digging method, wherein the tree digging device comprises a bracket, a shell, a rotary power device and a swing shaft which are fixed on the shell, and a hob assembly composed of a spiral hob and a hob shaft; the hob shaft is fixed on the shell, and the rotary power device drives the spiral hob to rotate; the support is provided with a swing power device for driving the shell, the hob assembly and the like to swing around a swing shaft, when the hob assembly swings 180 degrees around the axis of the swing shaft, the track of the zigzag spiral hob or the hob shaft is 1/4 which is basically spherical, and the swing shaft extends along the radial direction of the trunk when the tree digging method is used for digging soil balls half of the roots of the tree; the rotary power device drives the spiral hob to rotate, and the swing power device drives the hob assembly basically flush with the ground to swing for 180 degrees around the swing shaft; the rotating spiral hob can cut off the tree root and convey soil below the tree root to the ground.

The tree digging device needs a hob assembly consisting of a spiral hob and a hob shaft, and is relatively complex to manufacture and relatively high in cost. When the digging machine is used, only half of soil balls of the tree roots can be dug at a time, so that two times of operation are needed for digging the whole tree, and the digging machine is complicated and low in operation efficiency.

Disclosure of Invention

The reciprocating saw tree mover is simple in structure, small in size, convenient to operate and use, capable of achieving various tree digging operations by one person and high in efficiency.

In order to achieve the purpose, the technical scheme of the patent is as follows:

a reciprocating saw tree mover comprises an annular bracket 1 with an opening, a slide block 2 arranged on the bracket 1 in a sliding way, and a saw frame 3 provided with a guide groove 31 and a slide groove 32 which are communicated; the saw blade 4 comprises an upper handle part 41 and a lower working part 42 with saw teeth 43, the handle part 41 is arranged in the guide groove in a reciprocating sliding way, the working part 42 extends into the sliding groove 32, and the saw teeth 43 are arranged outside the sliding groove and at one side of the saw frame; a saw blade driving device 5 for driving the saw blade to slide in the guide groove and the sliding groove in a reciprocating manner is arranged on the saw frame; the saw frame 3 is arranged on the sliding block in a manner of swinging for at least 180 degrees, and can swing for 90 degrees from a 0-degree position which is in the same plane with the support to a sawing position: the saw frame and the saw blade extend downwards from the periphery of the support and towards the central axis of the support, and the lower end of the saw blade extends to the central axis of the support; a detachable locking device 6 for locking the saw frame in the sawing position is arranged between the saw frame and the slide block.

The beneficial effect of this technique: this patent is when using, and in the trunk moved into the support through the opening on the ring carrier 1, the support used the trunk to encircle the trunk as the center, trunk axis and support the central axis coincidence. In the initial state, the saw frame and the support are in the same plane at 0 degrees, and the saw teeth face the ground (see fig. 3). The blade drive is then activated and the blade begins to reciprocate. The saw frame is then swung so that the saw frame is swung downwards starting from the 0 deg. position and the saw blade for cutting the root gradually cuts into the ground until the saw frame is swung 90 deg. to the cutting position, i.e. the saw frame, the saw blade both extend downwards from the periphery of the support and towards the centre axis of the support, and the lower end of the saw blade extends to the centre axis of the support. At this point, the saw frame is locked in the sawing position by means of the locking device 6. The slide block (including the saw frame on the slide block) is then driven to slide along the support from one end of the opening in the support to the other end of the opening. The locking device is then removed and the saw frame is driven to swing the sawing position 90 deg. upwards from the sawing position, the saw blade is brought from below the ground onto the ground, the saw frame is in the same plane with the holder in the 180 deg. position (see fig. 4), the saw teeth are facing away from the ground (see fig. 4). Thus, the excavation of the tree root soil ball is completed, and the excavation of the whole tree is completed.

In the above-mentioned reciprocating saw for tree-mover, the saw blade driving means 5 comprises a rotatable cam 51 which is in contact with the inner wall of the hole formed in the shank; the saw blade is driven to slide in a reciprocating way by the rotation of the cam. The saw blade is driven to slide in a reciprocating manner through the cam mechanism, and the structure is simpler.

In the reciprocating saw tree mover, the saw frame 3 is arranged on the sliding block in a swinging manner through the pivot 7; the locking device 6 is a pin shaft which can be inserted into the lock hole formed in the sliding block and the saw frame at the same time, and the pin shaft is parallel to the pivot.

The reciprocating saw tree mover comprises a support and a sliding block, wherein the support comprises an upper arc-shaped rod and a lower arc-shaped rod, the sliding block is provided with 3 rollers 21, one roller at the upper part is matched with the upper arc-shaped rod 11, and the two rollers at the lower part are matched with the lower arc-shaped rod 12. Preferably, the upper arc-shaped rod and the lower arc-shaped rod are connected through a c-shaped piece 13 positioned on the inner periphery of the support, and the saw frame is positioned on the outer periphery of the support; at the bottom end of c-shaped member 13 is fixed pin 14. The slide block is arranged on the bracket in a rolling way through the roller, so that the resistance is smaller. Meanwhile, the sliding of the c-shaped piece 13 on the inner periphery of the bracket and the sliding block cannot be interfered, and the structure is ingenious. The contact pin can be inserted in the ground, and the effect of stabilizing the whole reciprocating saw tree mover is achieved.

The reciprocating saw tree mover further comprises a handle 8 which is arranged on the saw frame and operates the saw frame to swing.

The reciprocating saw tree mover is provided with the saw frame part with the sliding groove and the working part of the saw blade in an arc shape. Thus, the root soil ball of the dug tree is basically hemispherical.

Drawings

FIG. 1 is a schematic view of the general structure of a reciprocating saw tree mover.

FIG. 2 is another schematic view of the general structure of the reciprocating saw tree mover.

Fig. 3 is a schematic view of the saw frame and the like in a 0 deg. position in a plane with the support.

Fig. 4 is a schematic view of the saw frame and the like in a 180 deg. position in a plane with the support.

Fig. 5 is a perspective view of a saw frame, saw blade, etc.

Fig. 6 is a sectional view taken along line a-a in fig. 5.

Fig. 7 is a sectional view B-B in fig. 5.

FIG. 8 is a perspective view of the saw frame and the lower end of the saw blade.

Fig. 9 is a perspective view of the slider, the roller, and the like.

Fig. 10 is a perspective view of the cam drive device and the like.

Fig. 11 is another perspective view of the cam drive device and the like.

Figure 12 is a schematic view of a saw blade.

In the figure: the saw comprises a bracket 1, an upper arc-shaped rod 11, a lower arc-shaped rod 12, a c-shaped part 13, a pin 14, an opening 15, a sliding block 2, a roller 21, a saw frame 3, a guide groove 31, a sliding groove 32, a saw blade 4, a handle part 41, a working part 42, sawteeth 43, a hole 44, a saw blade driving device (cam driving device) 5, a cam 51, a motor 52, a locking device (pin shaft) 6, a lock hole 61, a pivot 7 and a handle 8.

Detailed Description

As shown in fig. 1 and 2, the embodiment of the electric reciprocating saw tree mover mainly comprises a bracket 1, a slide block 2, a saw frame 3, a saw blade 4, a cam driving device 5, a pin shaft 6, a pivot 7 and a handle 8.

Referring to fig. 1, the ring-shaped bracket 1 with an opening 15 comprises an upper arc-shaped rod 11 and a lower arc-shaped rod 12, wherein the upper arc-shaped rod 11 and the lower arc-shaped rod 12 are connected through a c-shaped piece 13 positioned on the inner periphery of the bracket; at the bottom end of c-shaped member 13 is fixed pin 14. 3 rollers 21 are arranged on the sliding block 2, one roller on the upper part is matched with the upper arc-shaped rod 11, and two rollers on the lower part are matched with the lower arc-shaped rod 12.

Referring to fig. 5-7 and 12, the saw frame 3 is provided with a guide slot 31 and a sliding slot 32 which are communicated; blade 4 includes an upper shank portion 41 and a lower working portion 42 having saw teeth 43. The handle 41 is arranged in the guide slot in a reciprocating sliding manner, and the arc-shaped working part 42 extends into the corresponding arc-shaped sliding slot 32, and the saw teeth 43 are arranged outside the sliding slot and on one side of the saw frame.

Referring to fig. 10 and 11, the cam driving device 5 for driving the saw blade to slide in the guide slot and the slide slot reciprocally includes a motor 52 fixed on the saw frame, and a cam 51 fixed on the output shaft of the motor, the cam 51 extends into the rectangular hole 44 formed on the handle 41, and when the motor rotates, the cam contacts with the upper and lower inner side walls of the rectangular hole 44 to drive the saw blade to slide in the guide slot 31 and the slide slot 32 reciprocally.

The saw frame 3 positioned on the periphery of the bracket can swing on the sliding block by 360 degrees through a pivot 7; the locking device 6 is a pin shaft parallel to the pivot shaft, and the pin shaft can be inserted into the lock hole 61 formed on the sliding block and the saw frame at the same time, and can be pulled out of the lock hole 61. A handle 8 for operating the saw frame to swing is fixed on the saw frame.

In the initial state, the saw frame and the holder are in a plane at 0 °, the saw frame is close to one end of the opening 15, the saw teeth face the ground (see fig. 3), the saw blade extends in the circumferential direction of the holder, and the lower end of the saw blade exceeds the other end of the opening 15. Referring to fig. 2, 3 and 9, when the pin shaft 6 is pulled out of the lock hole 61, the saw frame, the motor, the saw blade and the like can swing 90 degrees from a 0-degree position which is in the same plane with the support to reach a saw cutting position: the saw frame and the saw blade extend downwards from the periphery of the support and towards the central axis of the support, and the lower end of the saw blade extends to the central axis of the support.

Claims

1. A reciprocating saw tree mover is characterized in that: the method comprises the following steps: the saw frame is characterized by comprising an annular support (1) with an opening, a sliding block (2) arranged on the support (1) in a sliding mode, and a saw frame (3) is provided with a guide groove (31) and a sliding groove (32) which are communicated; the saw blade (4) comprises a handle part (41) at the upper part and a working part (42) with saw teeth (43) at the lower part, the handle part (41) is arranged in the guide groove in a reciprocating sliding way, the working part (42) extends into the sliding groove (32), and the saw teeth (43) are arranged outside the sliding groove and at one side of the saw frame; a saw blade driving device (5) for driving the saw blade to slide in the guide groove and the sliding groove in a reciprocating manner is arranged on the saw frame; the saw frame (3) is arranged on the sliding block in a manner of swinging for at least 180 degrees, and can swing for 90 degrees from a 0-degree position which is in the same plane with the support to a sawing position: the saw frame and the saw blade extend downwards from the periphery of the support and towards the central axis of the support, and the lower end of the saw blade extends to the central axis of the support; a detachable locking device (6) used for locking the saw frame at the sawing position is arranged between the saw frame and the sliding block.

2. The reciprocating saw tree mover of claim 1, wherein: the saw blade driving device (5) comprises a rotating cam (51) which is contacted with the inner wall of the hole formed on the handle part; the saw blade is driven to slide in a reciprocating way by the rotation of the cam.

3. The reciprocating saw tree mover of claim 1, wherein: the saw frame (3) is arranged on the sliding block in a swinging way through a pivot (7); the locking device (6) is a pin shaft which can be inserted into the slide block and a lock hole formed in the saw frame simultaneously, and the pin shaft is parallel to the pivot.

4. The reciprocating saw tree mover of claim 1, wherein: the support includes two upper and lower arc poles, is provided with 3 gyro wheels (21) on the slider, and a gyro wheel and last arc pole (11) cooperation in upper portion, two gyro wheels of lower part and lower arc pole (12) cooperation.

5. The reciprocating saw tree mover of claim 4, wherein: the upper arc-shaped rod and the lower arc-shaped rod are connected through a c-shaped piece (13) positioned on the inner periphery of the support, and the saw frame is positioned on the outer periphery of the support; the bottom end of the c-shaped piece (13) is fixed with a pin (14).

6. The reciprocating saw tree mover of claim 1, wherein: it also comprises a handle (8) arranged on the saw frame for operating the saw frame to swing.

7. The reciprocating saw tree mover of claim 1, wherein: the saw frame part with the sliding groove and the working part of the saw blade are arc-shaped.