CN113853926B

CN113853926B - Structure for preventing blade of mower from inclining

Info

Publication number: CN113853926B
Application number: CN202111104440.8A
Authority: CN
Inventors: 林勇; 于骏; 赵国强; 王玉林
Original assignee: Jiangsu Zonghua Agricultural Machinery Co ltd
Current assignee: Jiangsu Zonghua Agricultural Machinery Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-07-15
Anticipated expiration: 2041-09-22
Also published as: CN113853926A

Abstract

The invention discloses the technical field of mowing equipment, in particular to a blade inclination prevention structure of a mower, which comprises a base, wherein the upper end of the base is provided with mounting grooves in a circumferential array, the upper end and the lower end of the base are welded with clamping blocks in a circumferential array, the upper end of the base is provided with a motor shaft, six sliding grooves are formed in the base in a circumferential array, the lower end of the base is provided with six blade main bodies in a circumferential array, the side surfaces of the blade main bodies are symmetrically provided with limiting grooves, the side surfaces of the blade main bodies are symmetrically provided with through grooves at one sides of the limiting grooves, T-shaped plates are penetratingly inserted in the through grooves, and the side surfaces of the T-shaped plates are penetratingly provided with positioning holes, and the blade inclination prevention structure has the beneficial effects that: the blade mounting device is reasonable in structural design and simple and convenient to operate, the blade main body is simple and convenient to mount and dismount, and the mounting and dismounting efficiency is greatly improved; the main body of the blade has no front and back sides, and can be selected randomly during installation, so that the installation difficulty is reduced.

Description

Structure for preventing blade of mower from inclining

Technical Field

The invention relates to the technical field of mowing equipment, in particular to a structure for preventing a blade of a mower from inclining.

Background

Mowers are also known as weed trimmers, lawnmowers, lawn mowers, and the like. The mower is a mechanical tool for trimming lawn and vegetation, and is composed of cutter head, engine, walking wheels, walking mechanism, blades, handrail and control unit. The existing mower has certain defects, the existing mower blade has a front side and a back side, and the blade is easy to be reversely installed if the blade is not known or identified seriously during installation, so that the mower cannot work normally; and the existing mower blade mounting and fixing structure is complicated, the blades are complex to dismount and mount, the mounting and dismounting time is greatly wasted, and the working efficiency is reduced. When the existing mower works, the blade rotates at a high speed, the blade is easy to incline and the like, and the existing mower cannot mow regularly, so that the mowing effect is influenced; and if the blade inclines seriously, the blade is easy to cut the ground or the equipment body, so that the blade is damaged, and the normal work of the mower is influenced.

To this end, we propose a structure of a mower for preventing inclination of a blade to solve the above drawbacks.

Disclosure of Invention

The present invention is directed to a structure of a lawn mower for preventing inclination of a blade, so as to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: a structure for preventing blades of a mower from inclining comprises a base, wherein mounting grooves are formed in the upper end of the base in a circumferential array, the upper end and the lower end of the base are welded with clamping blocks in a circumferential array manner, the upper end of the base is provided with a motor shaft, six sliding chutes are arranged in the base in a circumferential array, six blade main bodies are arranged at the lower end of the base in a circumferential array, the side surface of the blade main body is symmetrically provided with a limiting groove, the side surface of the blade main body is symmetrically provided with a through groove at one side of the limiting groove, a T-shaped plate is penetrated and inserted in the through groove, a positioning hole is penetrated and arranged on the side surface of the T-shaped plate, the motor shaft is rotatably connected with a protective cover through a bearing, the upper end of the base is provided with a buffer mechanism, the upper end of the buffer mechanism is provided with a sliding mechanism, and six fixing mechanisms are arranged in the base in a circumferential array mode.

Preferably, the limiting groove is in sliding fit with the clamping block, and the clamping block is clamped with the blade main body.

Preferably, the T-shaped plate is inserted into the mounting groove and clamped with the blade body.

Preferably, the buffer mechanism includes: the upper end of the base is welded with six sleeves in a circumferential array mode, the sliding rods are connected in the sleeves in an inserted mode, the buffer springs are arranged at the lower ends of the sliding rods, the fixing plate is arranged between every two adjacent sleeves, and the fixing plate is welded with the sleeves.

Preferably, the buffer spring is arranged in the sleeve, the upper end of the buffer spring is connected with the sliding rod in an inserting mode, and the lower end of the buffer spring is connected with the base in an inserting mode.

Preferably, the sliding mechanism includes: the sliding rod comprises a circular annular plate, circular blocks and balls, wherein the circular annular plate is welded at the upper end of the sliding rod, the circular blocks are welded at the upper end of the circular annular plate in a circumferential array mode, and the balls are embedded in the circular blocks.

Preferably, the ball is in rolling fit with the circular block, and the upper end of the ball is in rolling fit with the protective cover.

Preferably, the fixing mechanism includes: the winding device comprises a winding wheel, a nylon rope, positioning rods, a positioning spring and a knob, wherein the winding wheel is rotatably connected in a sliding groove through a pin rod, the nylon rope is wound on the winding wheel, the positioning rods are symmetrically arranged on two sides of the winding wheel, the positioning spring is inserted between the positioning rods and a base, two ends of the nylon rope are tied with the positioning rods, a rotating shaft is welded at the upper end of the winding wheel, and the upper end of the rotating shaft penetrates through the base to be welded with the knob.

Preferably, the positioning rod is connected with the base in a sliding mode and is inserted into the positioning hole.

Compared with the prior art, the invention has the beneficial effects that: the invention has reasonable structure and strong functionality, and has the following advantages:

1. the blade mounting device is reasonable in structural design and simple and convenient to operate, the blade main body is simple and convenient to mount and dismount, and the mounting and dismounting efficiency is greatly improved; the blade main body is not divided into the front side and the back side, can be selected at will during installation, and reduces the installation difficulty;

2. by utilizing the buffer mechanism and the sliding mechanism, when the blade rotates at a high speed and inclines, the blade main body drives the base to incline, the base extrudes the buffer mechanism, and the base slowly and stably recovers under the action of the elastic force of the buffer spring until the blade main body recovers to a horizontal state, so that the blade main body can be effectively prevented from being damaged due to inclination; drive slide mechanism through buffer gear and rotate, make the ball among the slide mechanism roll along the protective cover, make the stable rotation of base to make the stable rotation of blade main part, guarantee the work that lawn mower can be stable.

Drawings

FIG. 1 is a schematic view of a blade mounting arrangement of the present invention;

FIG. 2 is a schematic cross-sectional view of the blade mounting arrangement of the present invention;

FIG. 3 is a bottom view of the base structure of the present invention;

FIG. 4 is an exploded view of the cutter structure of the present invention;

FIG. 5 is a schematic structural view of a base, a buffering mechanism and a sliding mechanism of the present invention;

FIG. 6 is a schematic cross-sectional view of a base structure of the present invention;

fig. 7 is an enlarged view of the structure at a in fig. 6.

In the figure: 1. a base; 11. mounting grooves; 12. a clamping block; 13. a motor shaft; 14. a chute; 2. a blade body; 21. a limiting groove; 22. a through groove; 3. a T-shaped plate; 31. positioning holes; 4. a protective cover; 5. a sleeve; 51. a slide bar; 52. a buffer spring; 53. a fixing plate; 6. a circular annular plate; 61. a circular block; 62. a ball bearing; 7. a take-up pulley; 71. a nylon cord; 72. positioning a rod; 73. a positioning spring; 8. a knob.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 7, the present invention provides a technical solution: the utility model provides a lawn mower prevent blade slope structure, which comprises a base 1, mounting groove 11 has been seted up to base 1's upper end one-tenth circumference array, base 1's last lower extreme one-tenth circumference array welding has fixture block 12, motor shaft 13 is installed to base 1's upper end, it has spout 14 to set up six in the base 1 one-tenth circumference array, base 1's lower extreme one-tenth circumference array is provided with six blade main parts 2, spacing groove 21 has been seted up to the side symmetry of blade main part 2, spacing groove 21 and fixture block 12 sliding fit,

fixture block

12 and 2 joints of blade main part, insert the spacing groove 21 of blade main part 2 along fixture block 12, stimulate blade main part 2 along fixture block 12 again, make blade main part 2 and fixture block 12 joints.

The side of blade main part 2 has been seted up logical groove 22 in one side symmetry of spacing groove 21, it has been connect T shaped plate 3 to pass through the interlude in logical groove 22, T shaped plate 3 pegs graft with mounting groove 11, T shaped

plate

3 and 2 joints of blade main part, when installing blade main part 2, make the logical groove 22 and the mounting groove 11 of blade main part 2 to it, insert the upper end of T shaped plate 3 along leading to groove 22 again, make T shaped plate 3 pass

logical groove

22 and 11 pegs graft of mounting groove.

The side of T shaped plate 3 runs through and has seted up locating hole 31, rotates through the bearing on the motor shaft 13 and is connected with protective cover 4, and the opening has been seted up to one side of protective cover 4 for the operation of mowing.

Buffer gear is installed to base 1's upper end, and buffer gear is including: the cutter blade comprises sleeves 5, sliding rods 51, buffer springs 52 and fixed plates 53, six sleeves 5 are welded at the upper end of a base 1 in a circumferential array mode, the sliding rods 51 are inserted in the sleeves 5, the buffer springs 52 are arranged at the lower ends of the sliding rods 51, the buffer springs 52 are arranged in the sleeves 5, the upper ends of the buffer springs 52 are connected with the sliding rods 51 in an inserted mode, the lower ends of the buffer springs 52 are connected with the base 1 in an inserted mode, the fixed plates 53 are arranged between every two adjacent sleeves 5, the fixed plates 53 are welded with the sleeves 5, the buffer springs 52 exert elastic force on the sliding rods 51, when the cutter blade main body 2 rotates at high speed and inclines, the cutter blade main body 2 drives the base 1 to incline, when the base 1 inclines, the buffer mechanisms are squeezed, the base 1 drives the sleeves 5 to move, when the sleeves 5 move upwards, the sliding rods 51 slide downwards along the sleeves 5 to enable the sliding rods 51 to squeeze the buffer springs 52, and the base 1 is enabled to be slowly restored to be stable under the elastic force of the buffer springs 52, until the blade body 2 is restored to the horizontal state, thereby effectively preventing the blade body 2 from being damaged due to inclination.

Slide mechanism is installed to buffer gear's upper end, slide mechanism including: circular ring shaped plate 6, circular block 61 and ball 62, the welding of slide bar 51's upper end has circular ring shaped plate 6, circular block 61 has been welded to circular ring shaped plate 6's upper end one-tenth circumference array, ball 62 has been embedded in circular block 61, ball 62 and circular block 61 roll cooperation, ball 62's upper end and protective cover 4 roll cooperation, drive buffer gear when base 1 rotates and rotate, it rotates to drive slide mechanism through buffer gear, ball 62 among the messenger slide mechanism rolls along protective cover 4, make the stable rotation of base 1, thereby make the stable rotation of blade main part 2.

Six fixed establishment are installed to circumference array in the base 1, and fixed establishment is including: the take-up reel 7, the nylon rope 71, the positioning rod 72, the positioning spring 73 and the knob 8 are connected in the chute 14 in a rotating mode through a pin rod, the nylon rope 71 is wound on the take-up reel 7, the positioning rods 72 are symmetrically arranged on two sides of the take-up reel 7, the positioning spring 73 is inserted between the positioning rod 72 and the base 1, two ends of the nylon rope 71 are connected with the positioning rod 72 in a tying mode, one end of the positioning spring 73 is connected with the positioning rod 72 in an inserting mode, the other end of the positioning spring 73 is connected with the base 1 in an inserting mode, and the positioning spring 73 exerts elastic force on the positioning rod 72.

The positioning rod 72 is connected with the base 1 in a sliding mode, the positioning rod 72 is inserted into the positioning hole 31 in a splicing mode, a rotating shaft is welded to the upper end of the take-up pulley 7, the upper end of the rotating shaft penetrates through the base 1 to be welded with the knob 8, the knob 8 drives the take-up pulley 7 to rotate through the rotating shaft by rotating the knob 8, the take-up pulley 7 is enabled to wind and contract the nylon rope 71, and the nylon rope 71 drives the positioning rod 72 to slide.

The working principle is as follows: the blade mounting device disclosed by the invention is reasonable in structural design and simple and convenient to operate, the blade main body 2 is relatively simple and convenient to mount and dismount, and the mounting and dismounting efficiency of the blade main body 2 is greatly improved; and the cutting edges are arranged on both sides of the blade main body 2, so that the blade main body 2 has no front side and back side, and can be randomly selected during installation, thereby greatly reducing the difficulty of installing the blade main body 2, and the blade main bodies 2 are independently arranged, when one blade main body 2 is damaged, only the damaged blade main body 2 needs to be replaced, the whole cutter main body does not need to be replaced, thereby not only improving the replacement efficiency of the blade main body 2, but also greatly reducing the use cost.

When the T-shaped plate is installed, the limiting groove 21 of the blade body 2 is inserted along the clamping block 12, the blade body 2 is pulled along the clamping block 12, the blade body 2 is clamped with the clamping block 12, the through groove 22 of the blade body 2 and the installation groove 11 are aligned, the upper end of the T-shaped plate 3 is inserted along the through groove 22, the T-shaped plate 3 passes through the through groove 22 and is inserted into the installation groove 11, meanwhile, the knob 8 is rotated, the take-up pulley 7 is driven to rotate through the rotating shaft by the knob 8, the take-up pulley 7 winds and contracts the nylon rope 71, the nylon rope 71 drives the positioning rod 72 to slide, the positioning rod 72 extrudes the positioning spring 73, the positioning rod 72 is completely retracted into the base 1, after the T-shaped plate 3 is inserted into the installation groove 11, the knob 8 is loosened, the positioning rod 72 is driven to move under the elastic force of the positioning spring 73, the positioning rod 72 is inserted into the positioning hole 31 of the T-shaped plate 3, and the T-shaped plate 3 is fixed, the blade body 2 is fixed by the T-shaped plate 3, so that the blade body 2 is stably arranged on the base 1.

When the mower is used, the blade body 2 rotates at a high speed, when the blade body 2 rotates at a high speed and inclines, the blade body 2 drives the base 1 to incline, the base 1 extrudes the buffer mechanism when inclining, the base 1 drives the sleeve 5 to move, when the sleeve 5 moves upwards, the sliding rod 51 slides downwards along the sleeve 5, the sliding rod 51 extrudes the buffer spring 52, the base 1 is slowly recovered to be stable under the action of the elastic force of the buffer spring 52 until the blade body 2 recovers to be in a horizontal state, and therefore the blade body 2 can be effectively prevented from being damaged due to inclination; the base 1 rotates to drive the buffer mechanism to rotate, the buffer mechanism drives the sliding mechanism to rotate, the balls 62 in the sliding mechanism roll along the protective cover 4, the base 1 rotates stably, and therefore the blade main body 2 rotates stably, and the mower can work stably.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A structure for preventing blade inclination of a mower comprises a base (1), and is characterized in that: the upper end of the base (1) is provided with a mounting groove (11) in a circumferential array, the upper end and the lower end of the base (1) are welded with a fixture block (12) in a circumferential array, the upper end of the base (1) is provided with a motor shaft (13), the base (1) is internally provided with six sliding grooves (14) in a circumferential array, the lower end of the base (1) is provided with six blade main bodies (2) in a circumferential array, the side surfaces of the blade main bodies (2) are symmetrically provided with limiting grooves (21), the side surfaces of the blade main bodies (2) are symmetrically provided with through grooves (22) at one side of the limiting grooves (21), the through grooves (22) are internally penetrated and connected with T-shaped plates (3), the side surfaces of the T-shaped plates (3) are penetrated and provided with positioning holes (31), the motor shaft (13) is rotatably connected with a protective cover (4) through a bearing, and the upper end of the base (1) is provided with a buffer mechanism, the buffer mechanism comprises: sleeve (5), slide bar (51), buffer spring (52) and fixed plate (53), the upper end of base (1) becomes the welding of circumference array and has six sleeve (5), it has slide bar (51) to peg graft in sleeve (5), the lower extreme of slide bar (51) is provided with buffer spring (52), is provided with fixed plate (53) between two adjacent sleeve (5), and fixed plate (53) and sleeve (5) welding, slide mechanism is installed to buffer mechanism's upper end, slide mechanism is including: circular ring shaped plate (6), circular block (61) and ball (62), the upper end welding of slide bar (51) has circular ring shaped plate (6), the upper end of circular ring shaped plate (6) becomes the welding of circumference array and has circular block (61), the embedding has ball (62) in circular block (61), six fixed establishment are installed to the circumference array in base (1), fixed establishment is including: the take-up reel comprises a take-up reel (7), a nylon rope (71), a positioning rod (72), a positioning spring (73) and a knob (8), wherein the take-up reel (7) is rotatably connected in a sliding groove (14) through a pin rod, the nylon rope (71) is wound on the take-up reel (7), the positioning rods (72) are symmetrically arranged on two sides of the take-up reel (7), the positioning spring (73) is inserted between the positioning rod (72) and a base (1), two ends of the nylon rope (71) are tied with the positioning rod (72), a rotating shaft is welded at the upper end of the take-up reel (7), and the upper end of the rotating shaft penetrates through the base (1) and is welded with the knob (8).

2. The structure of preventing inclination of a blade of a lawnmower according to claim 1, wherein: the limiting groove (21) is in sliding fit with the clamping block (12), and the clamping block (12) is clamped with the blade main body (2).

3. The structure of preventing inclination of a blade of a lawnmower according to claim 1, wherein: t shaped plate (3) are pegged graft with mounting groove (11), T shaped plate (3) and blade main part (2) joint.

4. The structure of claim 3, wherein: the buffer spring (52) is arranged in the sleeve (5), the upper end of the buffer spring (52) is connected with the sliding rod (51) in an inserting mode, and the lower end of the buffer spring (52) is connected with the base (1) in an inserting mode.

5. The structure of claim 4, wherein the structure for preventing inclination of the blade of the grass cutter comprises: the ball (62) is in rolling fit with the circular block (61), and the upper end of the ball (62) is in rolling fit with the protective cover (4).

6. The structure of claim 5, wherein: the positioning rod (72) is connected with the base (1) in a sliding mode, and the positioning rod (72) is inserted into the positioning hole (31).