CN110679211A

CN110679211A - Soil turning machine

Info

Publication number: CN110679211A
Application number: CN201810737266.2A
Authority: CN
Inventors: 林水杉
Original assignee: Nanjing Chervon Industry Co Ltd
Current assignee: Nanjing Chervon Industry Co Ltd
Priority date: 2018-07-06
Filing date: 2018-07-06
Publication date: 2020-01-14
Anticipated expiration: 2038-07-06
Also published as: CN110679211B

Abstract

The invention discloses a rooter, and relates to the technical field of rooters. The soil turning machine comprises a hand frame, an output shaft, a motor and a soil turning unit, wherein the hand frame is held by a user; the output shaft is arranged at the tail end of the hand rack; the motor drives the output shaft to rotate; the soil turning unit is arranged on the output shaft and rotates along with the output shaft. The soil turning unit comprises a base, a cutter head, an elastic element and cutter teeth. The base is fixed on the output shaft, the cutter head surrounds the base, and the elastic element is connected with the base and the cutter head; the cutter teeth are connected to the cutter head. When the cutter teeth on the cutter head of the invention touch hard objects, the elastic elements near the cutter teeth can be compressed, so that the cutter head deflects to the direction far away from the hard objects, the damage of the cutter teeth and even the cutter head caused by overlarge impact force due to mutual touch between the cutter teeth and the hard objects is avoided, and the vibration amplitude of the whole machine in the soil turning process is reduced.

Description

Soil turning machine

Technical Field

The invention relates to the technical field of soil turning tools, in particular to a soil turning machine.

Background

The rooter is applied to farm or garden cultivation, can rooter large soil blocks and is convenient for seeding of grains or flowers and plants. Compared with a manual hoe, the soil turning machine has the advantages that the labor intensity is reduced, and the operation efficiency is improved.

The existing rooters generally include a hand frame, a motor, an output shaft, and cutter teeth. Because cutter teeth and output shaft rigid connection, when carrying out the work of digging, if meet objects such as harder stone, the cutter teeth receive the direct impact of stone, cause cutter teeth impaired easily to make stronger ground vibrations to whole rooter, cause the operation unstability.

Based on the above problems, there is a need for a soil turning machine to avoid the direct collision impact between the cutter teeth and the hard objects and reduce the vibration amplitude of the soil turning machine.

Disclosure of Invention

The invention aims to provide a soil turning machine, which aims to solve the problems that in the prior art, cutter teeth are easy to damage due to collision with hard objects and the soil turning machine is large in vibration amplitude.

In order to achieve the purpose, the invention adopts the following technical scheme:

an earth-moving machine comprising:

a handrail for a user to hold;

an output shaft disposed at a distal end of the hand rest;

the motor drives the output end to rotate;

the soil turning unit is arranged on the output shaft and rotates along with the output shaft;

the soil turning unit comprises:

a base fixed to the output shaft;

a cutter head surrounding the base;

the elastic element is connected with the base and the cutter head;

the cutter teeth are connected to the cutter head.

As a preferable mode of the above-described excavator, the elastic expansion and contraction direction of the elastic element is set in the radial direction of the cutter head.

As a preferable mode of the above-mentioned excavator, the plurality of elastic elements are provided at intervals in a circumferential direction of the output shaft.

As a preferable scheme of the soil turning machine, at least two soil turning units form a group of soil turning assemblies, and the cutterheads of the adjacent soil turning units in each group of soil turning assemblies are connected with each other.

As a preferable scheme of the soil turning machine, the cutter discs of the adjacent soil turning units are connected through a connecting piece, and the cutter teeth are arranged on the connecting piece.

As a preferable scheme of the soil turning machine, the connecting pieces are multiple and parallel to each other.

As a preferred scheme of the soil turning machine, the soil turning machine further comprises a limiting assembly used for axially limiting the cutter head.

As a preferable scheme of the soil turning machine, the limiting assembly comprises two limiting parts, and the two limiting parts are connected to the same base of the soil turning unit and are respectively arranged on two sides of the cutter head of the soil turning unit.

As an optimal scheme of above-mentioned rooter, spacing subassembly includes two locating parts, two the locating part is connected different in the subassembly of digging on the unit of digging, one the locating part is to its connection the spacing direction of the blade disc of unit of digging is the first direction, and another the locating part is to its connection the spacing direction of the blade disc of unit of digging is the second direction, the first direction with the second direction all is on a parallel with the axial of output shaft is opposite.

As an optimal scheme of the soil turning machine, the limiting part comprises a plurality of barrier strips arranged along the circumferential direction of the output shaft, the length direction of the barrier strips is arranged along the radial direction of the output shaft, one ends of the barrier strips are connected to the base, and the other ends of the barrier strips are located on one side of the cutter head.

As an optimal scheme of above-mentioned rooter, the blade disc is the echelonment structure along radial direction, the ladder face of echelonment structure is towards the output shaft, the locating part can with the ladder face butt.

As a preferable mode of the above-mentioned rooter, an angle of attack of the cutter tooth is acute.

The invention has the beneficial effects that:

the soil turning unit arranged on the output shaft comprises a base, a cutter disc, a plurality of elastic elements and cutter teeth, one end of each elastic element is connected with the outer ring of the base, the other end of each elastic element is connected with the inner ring of the cutter disc, when the cutter teeth on the cutter disc touch hard stone objects, the elastic elements near the cutter teeth can be compressed, the cutter disc is enabled to deflect towards the direction far away from the hard objects, the damage of the cutter teeth and even the cutter disc caused by overlarge impact force generated by mutual collision between the cutter teeth and the hard objects is avoided, and meanwhile, the vibration amplitude of the whole machine in the soil turning process is reduced.

Drawings

FIG. 1 is a schematic structural view of a rooter according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a soil turning unit provided in the embodiment of the invention;

FIG. 3 is a schematic view of another angle of the excavator according to the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic diagram of the construction of a cutter head provided in accordance with an embodiment of the present invention;

FIG. 6 is a schematic view of a coupling and cutter tooth according to an embodiment of the present invention.

Wherein, 1, a hand frame; 2. an output shaft; 3. a soil turning unit; 4. a limiting member; 5. a connecting member;

31. a base; 32. a cutter head; 321. a step surface; 33. an elastic element; 34. cutter teeth;

41. and (6) blocking strips.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

The embodiment provides a rooter which is used for realizing rapid rooter. As shown in fig. 1, the rooter comprises a hand frame 1, a motor, an output shaft 2 and a rooter unit 3, wherein the hand frame 1 is used for being held by a user, the output shaft 2 is arranged at the tail end of the hand frame 1, the motor is connected with a gear box, the gear box is used for driving the output shaft 2 to rotate, and the rooter unit 3 is arranged on the output shaft 2 and driven by the output shaft 2 to rotate, so that the rooter can realize the rooter.

The unit of digging 3 and output shaft 2 rigid connection among the current rooter, when carrying out the work of digging, if meet objects such as harder stone, the unit of digging 3 receives the direct impact of stone, causes the unit of digging 3 impaired easily to produce stronger ground vibrations to whole rooter, cause the operation unstability.

In order to avoid the above problem, the turning unit 3 in the present embodiment includes a base 31, a cutter head 32, a plurality of elastic members 33, and cutter teeth 34, as shown in fig. 2. Wherein the base 31 is fixed on the output shaft 2, the base 31 comprises a disc portion for coupling with the elastic element 33.

The cutter head 32 is in a ring structure and surrounds the base 31. The cutter teeth 34 are connected to the cutter head 32, and the ground is directly turned through the cutter teeth 34.

A plurality of elastic elements 33 are arranged at regular intervals in the circumferential direction of the output shaft 2, the elastic elements 33 connect the base 31 and the cutter head 32, and the elastic expansion and contraction direction of the elastic elements 33 is arranged in the radial direction of the cutter head 32. Specifically, one end of the elastic member 33 is connected to the outer ring of the disk portion, and the other end is connected to the inner ring of the cutter head 32. Therefore, the cutter head 32 is connected to the base 31 in a floating mode, when a certain cutter tooth 34 on the cutter head 32 touches hard stone objects, the elastic element 33 near the cutter tooth 34 can be compressed, the elastic element 33 far away from the cutter tooth 34 is elongated, the cutter head 32 deviates towards the direction far away from the hard objects, the cutter tooth 34 and even the cutter head 32 are prevented from being damaged due to overlarge impact force caused by mutual collision between the cutter tooth 34 and the hard objects, the cutter tooth 34 and the cutter head 32 are effectively prevented from being damaged due to the buffering effect of the elastic element 33, and the vibration amplitude of the whole machine in the soil turning process is reduced. The number of the elastic elements 33 may be plural or one, and the shock absorption may be achieved.

In addition, as shown in fig. 2, in order to avoid the cutter head 32 from shaking along the axial direction of the output shaft 2, the excavator further comprises a limiting assembly, and the limiting assembly can axially limit the cutter head 32. The specific form of the limiting assembly is related to the number of the soil turning units 3 and the arrangement mode of the soil turning units 3 on the soil turning machine.

The arrangement mode of the soil turning unit 3 on the soil turning machine is various. One way may be that only one turning unit 3 is provided on the rooter, or that a plurality of turning units 3 on the rooter are not connected to each other; alternatively, the plurality of soil turning units 3 of the soil turning machine may be divided into a plurality of groups of soil turning assemblies, and adjacent cutterheads 32 in each group of soil turning assemblies are interconnected.

When the setting mode of the unit 3 that turns over soil on the rooter is the former mode, spacing subassembly includes two locating parts 4, all connects above-mentioned two locating parts 4 in the disc portion of the base 31 of every unit 3 that turns over soil, and two locating parts 4 set up the both sides of blade disc 32 on this unit 3 that turns over soil respectively to it is spacing to the axial of blade disc 32 to realize that locating part 4 is spacing, avoids the axial of blade disc 32 to rock, guarantees going on smoothly of the work of turning over soil.

As shown in fig. 3 and 4, when the setting mode of the soil turning unit 3 on the soil turning machine is the latter mode, the limiting assembly includes two limiting members 4, the two limiting members 4 are connected to different soil turning units 3 in the soil turning assembly, the limiting direction of one limiting member 4 to the cutterhead 32 of the soil turning unit 3 connected thereto is a first direction, the limiting direction of the other limiting member 4 to the cutterhead 32 of the soil turning unit 3 connected thereto is a second direction, and the first direction and the second direction are both parallel to the axial direction of the output shaft 2 and opposite to each other. The limiting assembly in the structure can realize axial positioning on all cutter heads 32 of a group of soil turning assemblies through two limiting parts 4, the structure is simple, the cost is low, and the axial stability of the soil turning assemblies can be ensured. In other embodiments, the cutter head 32 of a group of soil turning assemblies may be further limited by more limiting members 4 according to specific situations, which are not described herein again.

In the present embodiment, as shown in fig. 3 and 4, two of the soil turning units 3 constitute a set of soil turning assemblies, and the cutterheads 32 of adjacent soil turning units 3 are connected by the connecting member 5. The connecting piece 5 is in the shape of a long strip, and cutter teeth 34 are arranged on the connecting piece. The number of the connecting pieces 5 is plural and parallel to each other, specifically, the connecting pieces 5 are uniformly arranged along the circumferential direction of the output shaft 2, and the length direction of the connecting pieces 5 is parallel to the output shaft 2. The connecting piece 5 is connected with the two cutterheads 32, so that the two soil turning units 3 are connected into a whole, the two soil turning assemblies are mutually restrained, and the axial shaking of the cutterheads 32 can be restrained.

In this embodiment, as shown in fig. 4, the limiting member 4 includes a plurality of barrier strips 41 arranged along the circumferential direction of the output shaft 2, the length direction of the barrier strips 41 is arranged along the radial direction of the output shaft 2, one end of the barrier strips 41 is connected to the base 31, the other end is located on one side of the cutter head 32, and when the cutter head 32 has a tendency of axial shaking, the cutter head 32 is blocked by the barrier strips 41, so that the amplitude of axial shaking of the cutter head 32 is reduced.

In the present embodiment, as shown in fig. 5, the cutter head 32 is in a step-like structure along the radial direction, the step surface 321 of the step-like structure faces the output shaft 2, when the cutter teeth 34 are impacted by a hard object and the elastic element 33 contracts, the distance between the inner ring of the cutter head 32 at the corresponding position and the output shaft 2 decreases, and the step surface 321 on the cutter head 32 can be abutted against the end of the barrier 41, so that the barrier 41 can limit the elastic element 33 to continue to contract, and the problem of poor soil turning effect caused by an excessively large buffer stroke of the cutter head 32 is avoided.

In the present embodiment, as shown in fig. 1 and 6, a plurality of cutter teeth 34 are provided on the connecting member 5 and located at two sides of the cutter head 32, the plane where the cutter teeth 34 are located does not coincide with the plane where the cutter head 32 is located, and the cutter teeth 34 avoid the position of the cutter head 32, so that the cutter teeth 34 are conveniently installed on the connecting member 5, and the cutter head 32 is prevented from interfering with the installation of the cutter teeth 34.

In addition, the attack angle of the cutter teeth 34 is an acute angle, so that the cutter teeth 34 can conveniently enter the soil, and the soil turning efficiency is improved.

In the present embodiment, the elastic element 33 may be a tension spring, or may be a spiral spring. Other telescoping elements may also be selected in other embodiments.

Note that the above is only a preferred embodiment of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An earth-moving machine comprising:

a handrail (1) for a user to hold;

an output shaft (2) arranged at the tail end of the handrail (1);

the motor drives the output shaft (2) to rotate;

the soil turning unit (3) is arranged on the output shaft (2) and rotates along with the output shaft (2);

the method is characterized in that:

the soil turning unit (3) includes:

a base (31) fixed to the output shaft (2);

a cutter head (32) surrounding the base (31);

an elastic element (33), said elastic element (33) connecting said base (31) and said cutterhead (32);

and the cutter teeth (34) are connected to the cutter head (32).

2. The soil turning machine according to claim 1, wherein the direction of elastic expansion and contraction of said elastic element (33) is arranged in a radial direction of said cutterhead (32).

3. The soil turning machine according to claim 1, wherein said elastic elements are plural and arranged at intervals in a circumferential direction of said output shaft (2).

4. The soil turning machine according to any one of claims 1 to 3, wherein at least two of said soil turning units (3) constitute a set of soil turning assemblies, and said cutterheads (32) of adjacent ones of said soil turning units (3) in each set of soil turning assemblies are interconnected.

5. The soil turning machine according to claim 4, characterized in that the cutterheads (32) of adjacent soil turning units (3) are connected by a connecting piece (5), and the cutter teeth (34) are arranged on the connecting piece (5).

6. The soil turning machine according to claim 5, characterized in that said connecting elements (5) are in number and parallel to each other.

7. The rooter as claimed in claim 4, further comprising a stop assembly for axially stopping said cutterhead (32).

8. The soil turning machine according to claim 7, characterized in that said limiting assembly comprises two limiting members (4), said two limiting members (4) being connected to said base (31) of the same soil turning unit (3) and being divided on both sides of said cutterhead (32) of the soil turning unit (3).

9. The soil turning machine according to claim 7, wherein said limiting assembly comprises two limiting members (4), two of said limiting members (4) are connected to different ones of said soil turning units (3) in said soil turning assembly, one of said limiting members (4) is a first direction for limiting a direction of a cutter head (32) of said soil turning unit (3) to which it is connected, the other of said limiting members (4) is a second direction for limiting a direction of a cutter head (32) of said soil turning unit (3) to which it is connected, and both of said first direction and said second direction are parallel to an axial direction of said output shaft (2) and opposite to each other.

10. The soil turning machine according to claim 8 or 9, wherein the limiting member (4) comprises a plurality of bars (41) arranged along the circumferential direction of the output shaft (2), the length direction of the bars (41) is arranged along the radial direction of the output shaft (2), one end of the bars (41) is connected to the base (31), and the other end is located at one side of the cutterhead (32).

11. The soil turning machine according to claim 8 or 9, wherein the cutterhead (32) is of a stepped structure in a radial direction, a stepped surface (321) of the stepped structure facing the output shaft (2), the limiting member (4) being capable of abutting against the stepped surface (321).

12. The rooter as claimed in claim 1, wherein the angle of attack of the cutter tooth (34) is acute.