CN219555673U

CN219555673U - Cutter head assembly for mower and mower

Info

Publication number: CN219555673U
Application number: CN202320561583.XU
Authority: CN
Inventors: 陈逸奇
Original assignee: Shenzhen Zongguan Innovation Co ltd
Current assignee: Shenzhen Zongguan Innovation Co ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-08-22
Anticipated expiration: 2033-03-20

Abstract

The utility model discloses a cutter head assembly for a mower and the mower; the cutter head assembly comprises a cutter head installation main body, a cutter head assembly and a cutter head assembly, wherein the cutter head installation main body comprises a bottom plate and an installation plate, the bottom plate is provided with a through hole, the bottom plate is connected with the installation plate through a plurality of connecting ribs arranged at intervals, and hollow parts are formed between the adjacent connecting ribs; the centrifugal fan blades are arranged on the top surface of the bottom plate and correspond to the connecting ribs; the blades are arranged at intervals along the edge of the bottom surface of the bottom plate. According to the utility model, the air flow generated when the cutter head mounting main body rotates is increased through the centrifugal fan blades, the air enters from the through hole of the bottom plate by utilizing the principle of central air inlet of the centrifugal fan blades, and the air is discharged from the hollow part, so that a larger negative pressure area can be generated by the centrifugal fan blades, a negative pressure air suction effect is formed in the center, and the crushed grass blades on the ground can be rolled up, and then gathered to the grass discharge port through the suction fan. Therefore, the problem that the crushed grass leaves are difficult to be effectively gathered to the grass discharging port due to insufficient air flow generated by the blade can be avoided.

Description

Cutter head assembly for mower and mower

Technical Field

The utility model relates to the technical field of mowers, in particular to a cutter head for a mower and the mower.

Background

Mowing mechanisms of mowing machines on the market mainly comprise two main types, namely a rotary cutter type and a hob type. The rotary knife type is to cut pasture by impacting a blade on a high-speed rotary knife disc; the hob is a double-edge scissors formed by a drum hob and a bed knife, and grass plants are wound into the hob and the bed knife to realize cutting of the grass plants.

The mowing blade mainly has two functions, namely mowing and grass discharging (or grass breaking), and mowing is realized through the front edge of the blade; the tilting of the rear edge of the blade can play a role of an axial flow fan (or saw-tooth grass breaking) when the blade rotates, and air flow generated by the axial flow fan brings cut grass blades to gather to a grass discharging port.

When the existing blade is applied to a place with fallen leaves or scattered broken grass is arranged on a sidewalk at the edge of the grassland, the fallen leaves or the broken grass are difficult to be effectively gathered to a grass discharging port by the air flow generated by the blade, and the situation of missing fallen leaves and broken grass often occurs.

Disclosure of Invention

The utility model mainly solves the technical problem of providing a cutter head assembly for a mower, which solves the problems that air flow generated by blades is difficult to effectively gather fallen leaves or broken grass to a grass discharging port, and missing fallen leaves and broken grass frequently occur.

In order to solve the technical problem, the utility model provides a cutter head assembly for a mower, comprising: the cutter head mounting main body comprises a bottom plate and a mounting plate, wherein the bottom plate is provided with a through hole, the bottom plate is connected with the mounting plate through a plurality of connecting ribs arranged at intervals, and hollow parts are formed between adjacent connecting ribs; the centrifugal fan blades are arranged on the top surface of the bottom plate and correspond to the connecting ribs; and the blades are arranged at intervals along the edge part of the bottom surface of the bottom plate.

Preferably, the side edge of the bottom plate is also provided with auxiliary fan blades.

Preferably, the auxiliary fan blade is in contact with the blade and is arranged at a preset included angle.

Preferably, the preset included angle is 5-45 degrees.

Preferably, the centrifugal fan blade is vertically mounted on the top surface.

Preferably, the connecting ribs shrink and extend from one end of the bottom plate to the other end.

Preferably, a mounting hole is formed in the middle of the mounting plate, and is used for mounting and fixing the cutterhead mounting main body.

Preferably, the cutter head assembly further comprises a suction fan, a cutter head cover and a pipeline, wherein the cutter head cover is provided with the cutter head mounting main body and the cutter blade, one end of the pipeline is communicated with the cutter head cover, and the other end of the pipeline is communicated with the suction fan.

Preferably, the cutter head cover is in a volute shape.

The utility model also provides a mower comprising the cutter head assembly.

The beneficial effects of the utility model are as follows: according to the utility model, the blades are arranged at intervals along the edge of the bottom surface of the bottom plate, the blades are used for cutting fallen leaves and grass, the blades are used for increasing the airflow generated by the cutter head mounting main body during rotation, the air enters from the through hole of the bottom plate by utilizing the principle of central air inlet of the centrifugal blades, and air is discharged from the hollow part, so that a larger negative pressure area can be generated by the centrifugal blades, a negative pressure air suction effect is formed in the center, the crushed grass blades on the ground can be rolled up, and then the crushed grass blades are gathered to the grass discharging port by the suction fan. Therefore, the problem that the crushed grass leaves are difficult to be effectively gathered to the grass discharging port due to insufficient air flow generated by the blade can be avoided.

Drawings

FIG. 1 is a schematic diagram of a structure according to an embodiment of the utility model;

FIG. 2 is a schematic view of a cutterhead cover according to one embodiment of the present utility model;

fig. 3 is a schematic view of a cutterhead assembly according to an embodiment of the present utility model;

fig. 4 is a schematic bottom view of a cutterhead assembly in accordance with an embodiment of the present utility model;

fig. 5 is a schematic top view of a cutterhead assembly in accordance with an embodiment of the present utility model.

Detailed Description

In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

For the description of the present utility model, the labels "front", "rear", "up", "down", "left" and "right" shown in fig. 1 are used for non-limiting purposes to facilitate understanding of this embodiment and are not intended to limit the present utility model. Wherein, the front-back direction represents the longitudinal direction, the left-right direction represents the transverse direction, and the up-down direction represents the vertical direction.

Fig. 1-5 illustrate an embodiment of the present utility model for a mower, a cutterhead assembly comprising: the cutterhead mounting main body 1 comprises a bottom plate 11 and a mounting plate 12, wherein the bottom plate 11 is provided with a through hole 111, the bottom plate 11 and the mounting plate 12 are connected through a plurality of connecting ribs 13 which are arranged at intervals, and hollowed-out parts 14 are formed between adjacent connecting ribs 13; a plurality of blades 112 spaced apart along the edges of the bottom surface of the base plate 11; the cutterhead assembly further comprises a plurality of centrifugal fan blades 113, wherein the centrifugal fan blades 113 are arranged on the top surface of the bottom plate 11 and correspond to the connecting ribs 13. The centrifugal fan blades 113 are vertically installed on the top surface.

According to the utility model, the air flow generated by the cutter head mounting main body 1 during rotation can be increased through the centrifugal fan blades 113, the air enters from the through holes 111 of the bottom plate 11 by utilizing the principle of central air inlet of the centrifugal fan blades 113, and the air is discharged from the hollow parts 14, so that a larger negative pressure area can be generated by the hollow parts 14 of the centrifugal fan blades 113, a negative pressure air suction effect is formed in the center, the crushed grass blades on the ground can be rolled up, and then the crushed grass blades are gathered to the grass discharging port 41 through the suction fan 4. This can avoid the problem that the air flow generated by the blade 112 is insufficient and it is difficult to effectively collect the crushed grass blades to the grass discharge port 41.

Further, as shown in fig. 1 and 2, the cutterhead assembly further includes a cutterhead cover 2, a pipe 3 and a suction fan 4, wherein the suction fan 4 is communicated with the hollowed-out portion 14 and is used for providing suction force. The cutter head cover 2 is covered with a cutter head mounting main body 1 and a blade 112, one end of a pipeline 3 is communicated with the cutter head cover 2, and the other end is communicated with a suction fan 4. The cutter head cover 2 can play a role in protection, so that the blade 112 is prevented from being exposed, and the broken grass blades can be prevented from splashing.

Blades 112 are arranged at intervals along the edge of the bottom surface of the bottom plate 11, fallen leaves and grass are cut by the blades 112, the suction fan 4 is started when the blades 112 cut the fallen leaves and the grass, suction force is generated, and the broken grass leaves cut by the blades 112 are sucked out from the through holes 111 through the hollowed-out parts 14 by the suction force, so that the broken grass leaves are gathered from the cutter head assembly to the grass discharging port 41. This can avoid the problem that the air flow generated by the blade 112 is insufficient and it is difficult to effectively collect the crushed grass blades to the grass discharge port 41.

Preferably, the cutter head cover 2 is in a volute shape. Whereby drainage of the crushed grass blades into the duct 3 can be facilitated.

Preferably, the bottom plate 11 is annular, and the mounting plate 12 is of circular plate-like structure.

Further, as shown in fig. 4, the side edge of the base plate 11 is further provided with auxiliary blades 114. The air flow generated by the cutter head mounting body 1 when rotating is increased by the auxiliary vane 114.

Preferably, auxiliary blade 114 is in contact with blade 112 and is disposed at a predetermined angle. Auxiliary blade 114 may be integrally formed with blade 112, blade 112 may be horizontally disposed, the auxiliary blade extending upwardly at a predetermined angle, the predetermined angle between blade 112 and the auxiliary blade being 5-45, preferably 30.

The blades 112 of the outer ring mow grass, the auxiliary blades 114 provide partial lifting force, the lifting air flow drives the grass blades to ascend, the centrifugal blades 113 discharge air from the hollow parts 14 around, and the grass blades are blown out of the grass outlet 41. Compared with the traditional cutter head, the double effects of the auxiliary blades 114 and the centrifugal blades 113 are utilized to exhaust air and remove grass, so that the wind speed of grass removal is improved, and grass blockage is avoided.

Preferably, the connecting ribs 13 extend from one end of the base plate 11 to the other end. Thereby, the structural strength of the cutterhead mounting main body 1 can be increased.

Preferably, as shown in fig. 5, a mounting hole 121 is formed in the middle of the mounting plate 12 for fixing the cutterhead mounting body 1. The cutter head mounting main body 1 can be driven to rotate by the driving motor through the mounting hole 121 to cut grass.

Based on the same conception, the utility model also provides a mower, which comprises the cutter head assembly.

It can be seen that the present utility model discloses a cutter head assembly for a mower, in which blades 112 are spaced along the edge of the bottom surface of a base plate 11, fallen leaves and grass are cut by the blades 112, and a suction fan 4 is started while the blades 112 cut the fallen leaves and grass, so that suction force is generated, and the crushed grass cut by the blades 112 is sucked out from a through hole 111 through a hollowed-out part 14, thereby discharging the crushed grass from the cutter head assembly to a grass discharge port 41. This can avoid the problem that the air flow generated by the blade 112 is insufficient and it is difficult to effectively collect the crushed grass blades to the grass discharge port 41.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structural changes made by the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present utility model.

Claims

1. A cutterhead assembly for a mower, the cutterhead assembly comprising:

the cutter head mounting main body comprises a bottom plate and a mounting plate, wherein the bottom plate is provided with a through hole, the bottom plate is connected with the mounting plate through a plurality of connecting ribs arranged at intervals, and hollow parts are formed between adjacent connecting ribs;

the centrifugal fan blades are arranged on the top surface of the bottom plate and correspond to the connecting ribs;

and the blades are arranged at intervals along the edge part of the bottom surface of the bottom plate.

2. The cutterhead assembly for a mower of claim 1, wherein the side edges of the bottom plate are further provided with auxiliary blades.

3. The cutterhead assembly for a mower of claim 2 wherein the auxiliary blades are in contact with the blades and are disposed at a predetermined angle.

4. A cutterhead assembly for a mower as claimed in claim 3 wherein said predetermined angle is 5 ° -45 °.

5. The cutterhead assembly for a mower of claim 1 wherein the centrifugal fan blades are mounted vertically on the top surface.

6. The cutterhead assembly for a mower of claim 1 wherein the attachment bar extends from one end of the base plate to the other.

7. The cutterhead assembly for a mower of claim 1 wherein the mounting plate is formed with a mounting hole in a middle portion thereof for mounting and securing the cutterhead mounting body.

8. The cutterhead assembly for a mower of claim 1 further comprising a suction fan, a cutterhead housing the cutterhead mounting body and the blades, and a conduit having one end in communication with the cutterhead housing and the other end in communication with the suction fan.

9. The cutterhead assembly for a mower of claim 8 wherein the cutterhead housing is volute shaped.

10. A mower comprising the cutterhead assembly of any one of claims 1-9.