CN220858939U

CN220858939U - Grass winding prevention mower

Info

Publication number: CN220858939U
Application number: CN202322572221.3U
Authority: CN
Inventors: 魏克森
Original assignee: Shandong Hi Speed Co Ltd
Current assignee: Shandong Hi Speed Co Ltd
Priority date: 2023-09-21
Filing date: 2023-09-21
Publication date: 2024-04-30
Anticipated expiration: 2033-09-21

Abstract

The utility model provides an anti-grass winding mower, including drive arrangement and drive shaft (1) of being connected rather than the transmission, drive shaft (1) is kept away from drive arrangement one end and is equipped with cutting knife (2), be equipped with cutting device (3) between drive arrangement and the cutting knife (2), fluted (11) are seted up to the axial on drive shaft (1), cutting device (3) are including setting up strip antiwind sword (31) in fluted (11), the one end that cutting knife (2) was kept away from to antiwind sword (31) articulates in fluted (11), the other end is equipped with and carries and draws the device, and can draw antiwind sword (31) around articulated end rotation through carrying and drawing the device. The utility model has simple design and convenient disassembly and assembly, can easily pull the anti-winding knife by pulling the lifting device, further cuts off weeds between the cutting knife and the driving device on the transmission shaft, can fix the pull ring position by the design of the clamping structure and the placing groove, has strong durability and convenient maintenance, and can effectively ensure the stable operation of the mower.

Description

Grass winding prevention mower

Technical Field

The utility model relates to the technical field of greening pruning device design, in particular to a grass winding preventing mower.

Background

The inventor of the present application has developed before and has a patent number CN202221259833.6, and the name is a greening pruning device, which can realize the cutting of grass in a greenbelt and the cutting of multiple angles and multiple directions, and can meet the requirements of multiple cutting, but the inventor of the present application has found that the device still has defects in the using process, and the defects also exist in the devices for cutting grass in the prior art, and the defects are that when the transmission shaft of the device rotates to drive the cutting knife to cut grass, the grass is easy to wind on the transmission shaft in the cutting process, especially when cutting some grass with higher growth, the winding situation is the most serious, and no matter the grass with higher growth or the grass with lower growth is very difficult to remove after winding on the transmission shaft of the device, the grass wound with longer time is more, and finally the transmission shaft cannot continue to work.

Disclosure of utility model

In order to solve the technical problems that various weeds are easy to wind on a transmission shaft which drives a cutting knife to cut in the conventional grass cutting device in the background art and are difficult to remove, and the normal operation of the whole device is affected seriously, the utility model provides a grass winding preventing grass cutting machine.

The technical scheme of the utility model is as follows:

A grass winding prevention mower comprises a driving device and a transmission shaft in transmission connection with the driving device, wherein a cutting knife is arranged at one end, far away from the driving device, of the transmission shaft, and a cutting device is arranged between the driving device and the cutting knife; the transmission shaft is axially provided with a groove, and the cutting device comprises a strip-shaped anti-winding knife arranged in the groove; one end of the anti-winding knife, which is far away from the cutting knife, is hinged in the groove, the other end of the anti-winding knife is provided with a lifting device, and the anti-winding knife can be pulled to rotate around the hinged end through the lifting device. The cutting knife is used for cutting weeds, the cutting device can cut off weeds which are wound on the transmission shaft and are positioned between the cutting knife and the driving device, the time for cleaning and maintaining the cutting knife and the transmission shaft can be reduced, and the mowing efficiency is improved.

As a further implementation, the pulling device is a pull ring, which is hinged with the anti-winding knife and is located at a side of the rotation plane of the cutting knife away from the driving device, so as to prevent the pull ring from being covered by weed winding. The anti-winding knife can be pulled by an operator to rotate around the hinged end, weeds are cut off in the rotation process of the anti-winding knife, the operation is simple, time and labor are saved, and the cutting knife can be ensured to cut the weeds continuously.

The position of the transmission shaft corresponding to the pull ring is provided with a placing groove, and a clamping structure capable of fixing the pull ring is arranged in the placing groove. The clamping structure is used for fixing the position of the pull ring, preventing the pull ring from sliding out of the placing groove after the pull ring is used, ensuring the stable operation of the mower, and correspondingly protecting the anti-winding knife.

The clamping structure comprises a guide sleeve arranged in the side wall of the placing groove, a spring and steel balls are sequentially arranged in the guide sleeve from inside to outside, and one side of each steel ball, far away from the spring, protrudes out of the guide sleeve; the outer side of the pull ring is provided with an arc-shaped clamping groove which can be clamped and matched with one convex side of the steel ball. Through pull ring and steel ball protrusion one side joint cooperation, increased the stability of pull ring in the standing groove.

In order to further enhance the firmness of the pull ring, the pull ring is of a U-shaped structure with an opening facing the anti-winding knife, and a hinge piece is arranged between two sides of the opening and is hinged with the anti-winding knife through the hinge piece, and the hinge piece is in welded connection with two sides of the opening of the pull ring. The pull ring is more stable, and the service life of the mower is prolonged.

An anti-grass-winding mower as described above, for the anti-winding cutter set up:

The anti-winding knife is arranged to be a strip-shaped knife blade, so that the pull ring anti-winding knife can rotate around the hinged end in the groove, and the relatively hard weeds can be cut off by repeatedly pulling the anti-winding knife, namely, the weeds wound on the transmission shaft can be completely cut off by the strip-shaped knife blade, a plurality of blades are not required, and the anti-winding knife is convenient to maintain.

The cutting edge of the anti-winding knife is arranged towards the outer side of the transmission shaft so as to cut weeds, and the cutting work of the weeds can be performed by pulling the anti-winding knife.

The anti-winding knife is arranged in the groove, so that the difficulty in cleaning and maintenance is reduced, and the damage to a human body caused by the exposure of the cutting edge of the anti-winding knife to the outside can be prevented.

The thickness of the anti-winding knife is set to be 2-3.5mm, wherein the thinnest of the anti-winding knife is set to be 2mm, so that the anti-winding knife cannot be damaged and broken easily in the weed cutting process, the thickest of the anti-winding knife is set to be 3.5mm, the strength of the anti-winding knife can be increased, meanwhile, the sharpness of the weed cutting can be kept by the edge part of the anti-winding knife, and the service life of the anti-winding knife is long.

The material of the anti-winding knife is preferably hard alloy, and the anti-winding knife made of the hard alloy has higher durability and stability.

The utility model has the beneficial effects that: the grass winding prevention mower is simple in structure and convenient to assemble and disassemble. Can easily stimulate antiwind sword through pulling device, and then cut off the weeds between cutting knife and the drive arrangement on the transmission shaft, and can fix the pull ring position through the design of chucking structure and standing groove, its durability is strong, and it is convenient to maintain, can effectively guarantee the steady operation of lawn mower.

Drawings

In the drawings:

FIG. 1 is a front view of an anti-grass winding mower of the present utility model;

FIG. 2 is a schematic view of the AA in section of FIG. 1;

FIG. 3 is a schematic view of a grass winding resistant mower of the present utility model in use;

FIG. 4 is a schematic view (partially enlarged) of the BB section of FIG. 1;

FIG. 5 is a schematic view of a cutting device in a grass-winding-preventing mower according to the present utility model;

The components represented by the reference numerals in the figures are:

1. A transmission shaft; 11. a groove; 12. a placement groove; 2. a cutting knife; 3. a cutting device; 31. an anti-winding knife; 32. a pull ring; 321. an arc-shaped clamping groove; 33. a hinge; 4. a clamping structure; 41. guide sleeve; 42. a spring; 43. and (5) steel balls.

Detailed Description

Referring to fig. 1 and 2, the present embodiment provides a grass winding preventing mower, which includes a driving device and a transmission shaft 1 in transmission connection with the driving device, wherein a cutting knife 2 is arranged at one end of the transmission shaft 1 far away from the driving device, and a cutting device 3 is arranged between the driving device and the cutting knife 2.

The transmission shaft 1 is axially provided with a groove 11, the cutting device 3 comprises a strip-shaped anti-winding knife 31 arranged in the groove 11, one end of the anti-winding knife 31, far away from the cutting knife 2, is hinged in the groove 11, the other end of the anti-winding knife is provided with a lifting device, and the anti-winding knife 31 can be pulled by the lifting device to rotate around the hinged end.

The cutting knife 2 is used for cutting weeds, the cutting device 3 can cut off weeds between the cutting knife 2 and the driving device when the cutting knife 2 is used for cutting weeds, the weeds are wound on the driving shaft 1 and located between the cutting knife 2 and the driving device, the structure is simple, the operation is simple and convenient, the time for cleaning and maintaining the cutting knife 2 and the driving shaft 1 can be shortened for operators, and the mowing efficiency is improved.

Referring to fig. 5, the settings for the anti-wind-up knife 31 are as follows:

The anti-winding knife 31 is arranged to be a strip-shaped blade, the anti-winding knife 31 is pulled by the lifting device, the anti-winding knife 31 can rotate around the hinged end in the groove 11, and the anti-winding knife 31 can cut off harder weeds in the repeated pulling process, namely, the weeds wound on the transmission shaft 1 can be completely cut off by the strip-shaped blade, a plurality of blades are not required, and the anti-winding knife 31 is convenient to maintain.

The blade of the anti-winding knife 31 is arranged towards the outer side of the transmission shaft 1 so as to cut weeds, and the cutting work of the weeds can be performed by pulling the anti-winding knife 31.

The anti-winding knife 31 can be completely contained in the groove 11, so that the difficulty of cleaning and maintenance is reduced, and the damage to a human body caused by the exposed edge of the anti-winding knife 31 can be prevented.

The thickness of the antiwind blade 31 is set to 2-3.5mm, wherein the thinnest of the antiwind blade 31 is set to 2mm, so that the antiwind blade 31 cannot be easily damaged and broken in the process of cutting off weeds, the thickest of the antiwind blade 31 is set to 3.5mm, the strength of the antiwind blade 31 can be increased, and the sharpness of the cut-off weeds can be maintained by the blade part of the antiwind blade 31, so that the service life of the antiwind blade is long.

The material of the anti-winding knife 31 is preferably hard alloy, and the anti-winding knife 31 made of the hard alloy has high durability and stability.

As a further embodiment, for the installation of the anti-winding blade 31, an installation hole is provided in the groove 11 in the radial direction of the drive shaft 1, and the anti-winding blade 31 is hinged to the groove 11 by a caulking bolt in the installation hole.

In order to facilitate the operator pulling the anti-wind blade 31, the pulling means is provided as a pull ring 32, which is hingedly connected to the anti-wind blade 31 and is located on the side of the rotation plane of the cutting blade 2 remote from the driving means. So that the operator can easily pull the anti-winding knife 31 to rotate around the hinged end and cut off weeds in the process of rotating the anti-winding knife 31, the operation is simple, time and labor are saved, and the cutting knife 2 can continuously cut the weeds.

To ensure the stability and life of the mower, the tab 32 needs to be reinforced. The pull ring 32 is U type structure that the opening is towards antiwind sword 31, and is equipped with hinge 33 between the opening both sides, and hinge 33 passes through welded connection with the opening both sides of pull ring 32, makes pull ring 32 more firm, has improved the life of lawn mower.

Referring to fig. 4, a placement groove 12 is provided on the transmission shaft 1 corresponding to the pull ring 32, and a clamping structure 4 capable of fixing the pull ring 32 is provided in the placement groove 12. The clamping structure 4 is used for fixing the position of the pull ring 32, preventing the pull ring from sliding out of the placement groove 12 after the use is completed, ensuring the stable operation of the mower, and correspondingly protecting the anti-winding knife 31.

The clamping structure 4 comprises a guide sleeve 41 arranged in the side wall of the placing groove 12, a spring 42 and a steel ball 43 are sequentially arranged in the guide sleeve 41 from inside to outside, and one side of the steel ball 43 away from the spring 42 protrudes out of the guide sleeve 41; the outer side of the pull ring 32 is provided with an arc-shaped clamping groove 321 which can be in clamping fit with the protruding side of the steel ball 43. The stability of the pull ring 32 in the placing groove 12 is improved by the clamping fit of the pull ring 32 and the protruding side of the steel ball 43.

The specific operation process is as follows:

Starting the mower, and transmitting power to the transmission shaft 1 by the driving device to enable the cutting knife 2 to start rotating to cut weeds; when the cutting knife 2 cuts weeds, the weeds are wound on the transmission shaft 1; the operator closes the mower by visual inspection when more weeds wound on the transmission shaft 1 need to be cleaned; at this time, by pulling the pull ring 32, the pull ring 32 pulls the anti-winding blade 31 to rotate around the hinge end, and cuts off weeds during the rotation of the anti-winding blade 31.

In combination with fig. 3, an iron hook is further provided for the cutting device 3, and the anti-winding knife 31 can be pulled by hooking the pull ring 32 through the iron hook, so that the labor is saved, and the weed cutting work is facilitated.

According to the embodiment, through the design of the components such as the anti-winding cutter 31, the pull ring 32 and the clamping structure 4, effective cutting of weeds wound on the transmission shaft 1 is realized, mowing efficiency is improved, meanwhile, operation of cleaning and maintaining the cutting knife 2 and the transmission shaft 1 is simplified, and use difficulty is reduced.

Claims

1. The utility model provides an anti-grass winding's lawn mower, includes drive arrangement and transmission shaft (1) rather than the transmission is connected, drive arrangement one end is kept away from to transmission shaft (1) is equipped with cutting knife (2), its characterized in that: a cutting device (3) is arranged between the driving device and the cutting knife (2);

A groove (11) is axially formed in the transmission shaft (1), and the cutting device (3) comprises a strip-shaped anti-winding knife (31) arranged in the groove (11);

One end of the anti-winding knife (31) far away from the cutting knife (2) is hinged in the groove (11), and the other end of the anti-winding knife is provided with a lifting device which can pull the anti-winding knife (31) to rotate around the hinged end.

2. Grass-winding-preventive mower according to claim 1, characterized in that the pulling means is a pull ring (32) which is hinged to the winding-preventive blade (31).

3. An anti-grass-winding mower according to claim 2, characterized in that the pull ring (32) is located on the side of the rotation plane of the cutter (2) facing away from the drive means.

4. A grass winding prevention mower according to claim 3, characterized in that a placing groove (12) is arranged on the transmission shaft (1) at a position corresponding to the pull ring (32), and a clamping structure (4) capable of fixing the pull ring (32) is arranged in the placing groove (12).

5. The grass winding prevention mower as claimed in claim 4, wherein the clamping structure (4) comprises a guide sleeve (41) arranged in the side wall of the placing groove (12), a spring (42) and a steel ball (43) are sequentially arranged inside the guide sleeve (41) from inside to outside, and one side of the steel ball (43) far away from the spring (42) protrudes out of the guide sleeve (41);

an arc-shaped clamping groove (321) which can be in clamping fit with the protruding side of the steel ball (43) is formed in the outer side of the pull ring (32).

6. Grass winding resistant mower as claimed in claim 5, characterized in that the pull ring (32) is of U-shaped structure with an opening towards the winding resistant blade (31), and a hinge (33) is provided between the two sides of the opening and is hinged to the winding resistant blade (31) by the hinge (33).

7. An anti-grass winding mower according to claim 6, characterized in that the hinge (33) is welded to the opening of the pull ring (32) on both sides.

8. A grass winding-preventive mower as claimed in any one of claims 1-7, characterized in that said winding-preventive blade (31) is an elongated blade with its cutting edge disposed towards the outside of said transmission shaft (1).

9. Grass winding-proof mower according to claim 8, characterized in that the anti-winding blade (31) is entirely receivable into the recess (11).

10. An anti-grass-wrapping mower according to claim 8, characterized in that the thickness of the anti-wrapping blade (31) is 2-3.5mm.