CN212589354U

CN212589354U - Special drill bit assembly for tree mover suitable for various soil qualities

Info

Publication number: CN212589354U
Application number: CN202021099461.6U
Authority: CN
Inventors: 沈恒涛; 王新华
Original assignee: Luoyang Wei Te Technology Co ltd
Current assignee: Luoyang Wei Te Technology Co ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-02-26
Anticipated expiration: 2030-06-15

Abstract

In order to solve the problem that a 'rotating cutter' similar to a milling cutter in the prior art is easy to break, the utility model provides a special drill bit assembly for a tree mover, which is suitable for various soil qualities, and comprises a mounting seat, a driving motor arranged on the mounting seat and a drill bit connected with the output end of the driving motor and used for drilling downwards; the drill bit is characterized by further comprising a limiting mechanism which is arranged on the outer side of the drill bit and used for preventing the drill bit from swinging; the limiting mechanism is arranged on the mounting seat and is positioned on the opposite side of the driving motor. The utility model discloses a set up stop gear, reduced the length of drill bit in other words, can the effectual vibration that reduces the drill bit, prevent that drill bit in use from splitting. The utility model has the advantages of simple structure, low cost and good effect.

Description

Special drill bit assembly for tree mover suitable for various soil qualities

Technical Field

The utility model belongs to the garden machine field, in particular to special drill bit assembly of tree mover suitable for multiple soil property.

Background

At present, in the process of transplanting trees planted in gardens, manual tree digging is usually adopted. In the process of manually digging trees, operators usually dig more dense holes below the trees to respectively cut off tree roots in the holes, so that the connecting force between the trees and the soil is reduced, and then the trees can be easily lifted by the lifting equipment.

However, the process of manually digging trees is very long, and the working efficiency is very low. Furthermore, there are a series of conventional tree digging devices, such as chinese patent CN107736223, "a rotary tree digging machine and a method for digging trees". The technical scheme is as follows: a, the tree mover moves on the ground through the vehicle body to find a set datum point, the cutter is driven to rotate by the first power part, and the rotating cutter can be driven to drill into a soil layer by the lifting device; b. digging trees in a rotary mode; after the cutter penetrates into the soil layer to a set position, the cutter can rotate around the tree by taking the tree as the center in the clockwise direction, the anticlockwise direction or the clockwise and anticlockwise combined direction through the cooperation of the rotational freedom degree of the first rotating device, the moving freedom degree of the thrust device and the rotational freedom degree of the second rotating device, and the cutter can move around the tree according to the set distance of an operator.

However, in the prior art represented by the above patent, "rotary cutter" like a milling cutter has a large length, and is liable to generate vibration during radial movement, causing problems such as cutting.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem of easy cutter breakage of a 'rotating cutter' of a similar milling cutter in the prior art, the utility model provides a special drill bit component of tree mover suitable for multiple soil texture can effectively solve above-mentioned technical problem.

In order to achieve the above object, the utility model discloses a concrete scheme does: a drill bit assembly special for a tree mover and suitable for various soil qualities comprises a mounting seat, a driving motor arranged on the mounting seat, and a drill bit which is connected with the output end of the driving motor and used for drilling downwards; the drill bit is characterized by further comprising a limiting mechanism which is arranged on the outer side of the drill bit and used for preventing the drill bit from swinging; the limiting mechanism is arranged on the mounting seat and is positioned on the opposite side of the driving motor.

The limiting mechanism comprises a cylindrical shell and a bearing arranged in the cylindrical shell; the cylindrical shell and the bearing are coaxially arranged with the drill bit, and a gap of 0.5-1.5 mm exists between the outer edge of the drill bit and the inner ring of the bearing.

The limiting mechanism comprises a cylindrical shell and a gasket; wherein, the inner side of the cylindrical shell is provided with an internal thread; the outer side of the gasket is provided with an external thread corresponding to the internal thread on the cylindrical shell; the cylindrical shell and the gasket are coaxially arranged with the drill bit, and a gap of 0.5-1.5 mm exists between the outer edge of the drill bit and the inner ring of the gasket.

Has the advantages that: the utility model discloses a set up stop gear, reduced the length of drill bit in other words, can the effectual vibration that reduces the drill bit, prevent that drill bit in use from splitting. The utility model discloses simple structure, it is with low costs, owing to be difficult for disconnected sword, can adapt to most of application scenes, have effectual, longe-lived advantage.

Drawings

FIG. 1 illustrates an embodiment of the present invention;

FIG. 2 shows another embodiment of the present invention;

FIG. 3 is a schematic view of the initial position of the gasket in the embodiment of FIG. 2;

FIG. 4 is a schematic view of the embodiment of FIG. 2 illustrating a maximum operating position of the gasket;

FIG. 5 is a schematic view of the structure of the drill according to the present invention;

FIG. 6 is a bottom view of FIG. 5;

FIG. 7 is a front view of the gasket;

fig. 8 is a top view of fig. 7.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

In order to solve the problem that a drill bit similar to a milling cutter is easy to break, the special drill bit assembly for the tree mover, which is suitable for various soil qualities, comprises a mounting seat 1, a driving motor 2 arranged on the mounting seat 1 through a bolt 1A, and a drill bit 3 connected with the output end of the driving motor 2 and used for drilling downwards; the device is characterized by further comprising a limiting mechanism 4 which is arranged on the outer side of the drill bit 3 and used for preventing the drill bit 3 from swinging; due to structural limitation, preferably, the limiting mechanism 4 is arranged on the mounting seat 1 and is positioned on the opposite side of the driving motor 2; the output end of the driving motor 2 and the end part of the drill bit 3 are provided with

flanges

2A and 3A which are used for being connected with each other.

In order to facilitate the installation of the device,

specific example I: as shown in fig. 1, in order to make the limiting mechanism 4 not affect the rotation of the drill bit 3 when the drill bit 3 is working, but play a role of stabilization when the drill bit 3 swings, the limiting mechanism 4 comprises a cylindrical housing 401, a bearing 402 arranged in the cylindrical housing 401; the cylindrical shell 401 and the bearing 402 are both arranged coaxially with the drill bit 3, and a gap of 0.5-1.5 mm exists between the outer edge of the drill bit 3 and the inner ring of the bearing 402; the cylindrical case 401 is provided on the mount 1 by bolts 1B. When the drill bit 3 works normally, the inner ring of the bearing 402 and the drill bit 3 do not act with each other, but when the drill bit 3 encounters hard soil, stone or tree roots, because the drill bit 3 moves in the radial direction, radial bending deformation inevitably occurs, and at this time, the inner ring of the bearing 402 contacts with the drill bit 3, which is equivalent to providing a reverse supporting force for the deformation of the drill bit 3, and supporting the drill bit 3 to complete the radial movement. In order to prevent the bearing 402 from falling off, a limiting part 401A is provided on one side of the cylindrical housing 401 close to the ground.

Meanwhile, since the drill bit 3 loosens the soil sufficiently, after the lower end of the cylindrical shell 401 contacts the soil, the drill bit can easily go deep into the lower layer of the soil by the downward force applied from the outside, and the depth of the drill bit 3 can not be affected by the length of the cylindrical shell 401.

Preferably, the cylinder type housing 401 may be provided in a tapered shape to facilitate the downward movement.

In use, the technical scheme used in the specific embodiment I can effectively avoid the breakage of the drill bit 3 and well complete the function of milling off the tree root. However, since the position of the bearing 402 in the cylindrical housing 401 is fixed, the position of the bearing in the cylindrical housing 401 cannot be flexibly controlled according to the swing of the drill 3.

Specific example II: as shown in fig. 2 and fig. 7 to 8, an inner thread is provided on the inner side of the cylindrical housing 401; the cylindrical shell 401 is arranged on the mounting seat 1 through a bolt 1B; the outer side of the gasket 403 is provided with an external thread corresponding to the internal thread on the cylindrical shell 401; the cylindrical shell 401 and the gasket 403 are both arranged coaxially with the drill bit 3, and a gap of 0.5-1.5 mm exists between the outer edge of the drill bit 3 and the inner ring of the gasket 403.

In use, as shown in fig. 3-4, due to the presence of the washer 403, when the bit 3 deforms a little, the contact amount with the washer 403 is small, and the position of the washer 403 in the cylindrical housing 401 gradually moves downwards while the bit 3 rotates, so that a downward supporting point is provided for a long time to reduce the swing of the bit 3. If the bit 3 deforms a great amount and contacts the washer 403 a great amount, the washer 403 moves down rapidly in the cylindrical housing 401, providing a support point that is more and more downward in a short time, and reducing the swing of the bit 3.

It is to be understood that: the position adjustment of the washer 403 can be manually adjusted by the rotation direction of the drill 3. After use, the washer 403 should be close to the ground surface side when the drill bit 3 is deformed, and in order to return the washer 403 to the original side away from the ground surface, the drill bit 3 may be reversed, and after the reverse movement, the washer 403 may be reset when the drill bit 3 is slightly deformed, and then the next operation may be started again.

Specific example III: as shown in fig. 5-6, in the present invention, the drill bit 3 needs to perform the functions of drilling and milling, and in order to overcome the problem that the drill bit encounters stone blocks and hard soil blocks, the drill bit 3 includes a polished rod section 301, a spiral blade section 302, a disc-shaped cutter section 303 and a spiral crushing section 304; wherein, a spiral blade part 302 is coaxially arranged at the outer side of the polished rod section 301; one end of the polished rod section 301 is connected with the output end of the driving motor 2; the other end of the polished rod section 301 is coaxially connected with a spiral crushing part 304; the spiral crushing portion 304 is coaxially provided with a disk-shaped blade portion 303 on the outer side.

The polished rod section 301 and the spiral blade section 302 are mainly used for discharging soil; the disc-shaped blade portion 303 is used for cutting tree roots, hard soil blocks, and the like; the spiral crushing part 304 is similar to a drill bit, can drill and crush hard soil blocks and stone blocks, then cuts the hard soil blocks and the stone blocks through the disc-shaped cutter part 303, and finally discharges the hard soil blocks and the stone blocks through the polished rod section 301 and the spiral blade part 302; wherein, for the root of a tree of conveniently cutting off, be provided with the arc breach on the helical blade portion 302, as the cutting edge, conveniently cut off the root of a tree.

Specifically, the disc-shaped blade part 303 includes a connection unit 3031, a cylindrical blade unit 3032, and a dumping unit 3033; wherein the connection unit 3031 is arranged at the bottom of the cylindrical cutter unit 3032 and is used for connecting the cylindrical cutter unit 3032 and the spiral crushing part 304 by welding; a cutting edge 3032A is provided at one side of the cylinder type cutter unit 3032 facing the ground for facilitating cutting. In order to prevent soil from being accumulated in the cylindrical cutter unit 3032, a soil discharging unit 3033 is provided on the side of the connecting unit 3031 facing the ground, and is used for discharging soil in the cylindrical cutter unit 3032 from a gap between two adjacent connecting units 3031 through stirring and completely discharging the soil through the spiral blade part 302. Preferably, the discharging unit 3033 is a helical blade that is aligned with the rotation direction of the helical blade portion 302 in order to facilitate discharging of the crushed soil.

Preferably, the number of the connection units 3031 is four; the helical blade portion 302 conforms to the outer diameter of the disc-shaped blade portion 303.

It is to be understood that: the directional description referred to in the present application is based on fig. 1.

The above embodiments are merely illustrative, and not restrictive, and those skilled in the relevant art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the protection scope of the present invention.

Claims

1. A drill bit assembly special for a tree mover and suitable for various soil qualities comprises a mounting seat, a driving motor arranged on the mounting seat, and a drill bit which is connected with the output end of the driving motor and used for drilling downwards; the drill bit is characterized by further comprising a limiting mechanism which is arranged on the outer side of the drill bit and used for preventing the drill bit from swinging;

the limiting mechanism is arranged on the mounting seat and is positioned on the opposite side of the driving motor.

2. The special drill bit assembly for the tree mover applicable to various soils as claimed in claim 1, wherein: the limiting mechanism comprises a cylindrical shell and a bearing arranged in the cylindrical shell;

the cylindrical shell and the bearing are coaxially arranged with the drill bit, and a gap of 0.5-1.5 mm exists between the outer edge of the drill bit and the inner ring of the bearing.

3. The special drill bit assembly for the tree mover applicable to various soils as claimed in claim 2, wherein: the limiting mechanism comprises a cylindrical shell and a gasket;

wherein, the inner side of the cylindrical shell is provided with an internal thread; the outer side of the gasket is provided with an external thread corresponding to the internal thread on the cylindrical shell;

the cylindrical shell and the gasket are coaxially arranged with the drill bit, and a gap of 0.5-1.5 mm exists between the outer edge of the drill bit and the inner ring of the gasket.

4. The special drill bit assembly for the tree mover applicable to various soils as claimed in claim 2, wherein: one side of the cylindrical shell, which is close to the ground, is provided with a limiting part for preventing the bearing from being separated.

5. The special drill bit assembly for the tree mover applicable to various soils as claimed in claim 1, wherein: the drill comprises a polished rod section, a spiral blade part, a disc-shaped cutter part and a spiral crushing part;

wherein, the outer side of the polished rod section is coaxially provided with a spiral blade part; one end of the polished rod section is connected with the output end of the driving motor; the other end of the polished rod section is coaxially connected with the spiral crushing part; the outer side of the spiral crushing part is coaxially provided with a disc-shaped knife part.

6. The special drill bit assembly for the tree mover applicable to various soils as claimed in claim 5, wherein: the disc-shaped cutter part comprises a connecting unit, a cylindrical cutter unit and a soil discharging unit;

the connecting unit is arranged at the bottom of the cylindrical cutter unit and is used for connecting the cylindrical cutter unit and the spiral crushing part; one side of the cylindrical cutter unit facing the ground is provided with a cutting edge; and one side of the connecting units facing the ground is provided with a soil discharging unit for discharging soil inside the cylindrical cutter unit from a gap between two adjacent connecting units through stirring.

7. The special drill bit assembly for the tree mover applicable to various soils as claimed in claim 6, wherein: the number of the connecting units is four.

8. The special drill bit assembly for the tree mover applicable to various soils as claimed in claim 5, wherein: the spiral blade portion has an outer diameter identical to that of the disc-shaped blade portion.

9. A tree mover specific drill bit assembly suitable for use with a plurality of soils as claimed in claim 2 or 3 or 4 wherein: the cartridge-type housing is conical.

10. The special drill bit assembly for the tree mover applicable to various soils as claimed in claim 1, wherein: the output end of the driving motor and the end part of the drill bit are provided with flanges which are used for being connected with each other.