CN211702998U

CN211702998U - Grass cutter

Info

Publication number: CN211702998U
Application number: CN201922378010.XU
Authority: CN
Inventors: 刁兵兵
Original assignee: Yangzhou Weibang Garden Machine Co Ltd
Current assignee: Yangzhou Weibang Garden Machine Co Ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-10-20
Anticipated expiration: 2029-12-25

Abstract

The utility model relates to a mower, include: the mowing machine comprises a frame and an engine, wherein a front wheel assembly is arranged at one end of the frame, a rear wheel assembly is arranged at one end of the frame, the engine is arranged on the frame, the engine is located between the front wheel assembly and the rear wheel assembly, a walking output shaft and a mowing output shaft are arranged on the engine, the walking output shaft is connected with the rear wheel assembly through a rear axle gearbox, the mowing output shaft is connected with a cutter shaft clutch assembly, the cutter shaft clutch assembly comprises a centrifugal clutch, and a blade is arranged at the bottom end of the centrifugal clutch. The utility model discloses simple structure, convenient operation, the relative current lawn mower of mowing and walking must simultaneous working, the lawn mower of this application has realized walking and the rotatory independent operation of blade through being equipped with two solitary output shafts on the engine, has improved lawn mower's adaptability.

Description

Grass cutter

Technical Field

The utility model relates to a mowing equipment especially relates to a lawn mower.

Background

Lawn mowers are also known as lawn mowers, lawn trimmers, 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 cutter head is arranged on the travelling wheel, the engine is arranged on the cutter head, the blade is arranged on the output shaft of the engine, the blade is greatly improved in speed by utilizing the high-speed rotation of the engine, the operation time of weeding workers is saved, and a large amount of manpower resources are reduced. However, when the existing self-propelled mower is used for mowing mountains, hills and other lands, the engine controls the walking of the walking wheel and the rotation of the blade at the same time, namely, the walking and the rotation of the blade always work at the same time, and the walking requirement of single non-mowing state cannot be met.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model provides a mower.

The utility model provides a technical scheme that its technical problem adopted is: a lawn mower, comprising: the mowing machine comprises a frame and an engine, wherein a front wheel assembly is arranged at one end of the frame, a rear wheel assembly is arranged at one end of the frame, the engine is arranged on the frame, the engine is located between the front wheel assembly and the rear wheel assembly, a walking output shaft and a mowing output shaft are arranged on the engine, the walking output shaft is connected with the rear wheel assembly through a rear axle gearbox, the mowing output shaft is connected with a cutter shaft clutch assembly, the cutter shaft clutch assembly comprises a centrifugal clutch, and a blade is arranged at the bottom end of the centrifugal clutch.

In a preferred embodiment of the present invention, the walking output shaft is horizontally disposed and located at a side of the engine near the rear wheel assembly.

In a preferred embodiment of the present invention, the mowing output shaft is vertically disposed at the bottom end of the engine.

In a preferred embodiment of the present invention, the frame is further provided with a wheel clutch control handle, and the frame is further provided with an accelerator and a gearbox speed regulation box.

In a preferred embodiment of the present invention, the centrifugal clutch includes a central shaft, and a shoe block and a driven disc which are sequentially sleeved on the outer ring of the central shaft, wherein an elastic member is disposed inside the shoe block along the circumference, the lower portion of the driven disc is sleeved in the shaft sleeve, and the bottom end of the driven disc is connected with the blade through the shaft.

In a preferred embodiment of the present invention, the outer wall of the shoe block is covered with a friction material.

In a preferred embodiment of the present invention, the elastic members are two groups, and are embedded in the top and bottom ends of the shoe block respectively.

In a preferred embodiment of the present invention, the elastic member is a spring.

The utility model has the advantages that: after the structure of the oil-gas separation device is adopted, the utility model discloses simple structure, convenient operation, current mowing relatively and the lawn mower of walking must simultaneous working, the lawn mower of this application has realized walking and the rotatory independent operation of blade through being equipped with two solitary output shafts on the engine, has improved the adaptability of lawn mower.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the centrifugal clutch of the present invention;

FIG. 3 is a power output circuit diagram of the engine of the present invention;

fig. 4 is a schematic perspective view of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The first embodiment is as follows: a lawnmower as shown in fig. 1 to 4, comprising: frame 3 and

engine

1, 3 one end in frame is equipped with front wheel subassembly 4, and one end is equipped with rear wheel subassembly 7, be equipped with engine 1 in the frame 5, and engine 1 is located between front wheel subassembly 4 and rear wheel subassembly 7, be equipped with walking output shaft 101 and mowing output shaft 102 on the engine 1, walking output shaft 101 passes through rear axle gearbox 6 and connects rear wheel subassembly 7, mowing output shaft 102 connects arbor clutch subassembly, arbor clutch subassembly includes centrifugal clutch 201, centrifugal clutch 201 bottom is equipped with blade 9.

The utility model discloses a be equipped with two output shafts on the engine, wherein, walking output shaft 101 realizes being connected with rear axle gearbox 6 through the cooperation with the universal joint, realizes being connected through realizing between rear axle gearbox 6 and rear wheel subassembly 7, and the engine realizes the drive to rear wheel subassembly 7 through walking output shaft 101 finally; the mowing output shaft 102 of the engine is connected with the blade 9 through a centrifugal clutch 201, specifically, in the application, the centrifugal clutch 201 comprises a central shaft 2011, a shoe block 2022 and a driven disc 2024 which are sequentially sleeved on the outer ring of the central shaft 2011, an elastic component 2023 is arranged in the shoe block 2022 along the circumference, the lower portion of the driven disc 2024 is sleeved in a shaft sleeve 2025, the bottom end of the driven disc 2024 is connected with the blade 9 through a cutter shaft 2026, and the central shaft 2011 is connected with the mowing output shaft; due to the structural characteristics of the centrifugal clutch, when the rotating speed of the engine is adjusted to be lower than the speed required by the centrifugal clutch to work at the lowest speed, the blade cannot work when being in a static state, but the walking output shaft can drive the rear wheel assembly to walk, so that the independent walking function of the mower is realized, and the mower can adapt to non-working state transition of various terrains; when the rotating speed of the engine is adjusted to be larger than the working speed of the centrifugal clutch, the centrifugal clutch is started, and the mowing while walking can be achieved.

The frame 3 is also provided with a wheel clutch control handle 8, and the frame is also provided with an accelerator and a gearbox speed regulating box 5; the rear axle gearbox has a clutch function, power combination of the rear axle gearbox is realized through a wheel clutch control handle to realize self-propelled driving, and a speed regulating handle is used for realizing a traveling speed gear shifting function.

The walking output shaft 101 is horizontally arranged and is positioned at one side of the engine close to the rear wheel assembly 7, so that the walking output shaft is conveniently connected with the rear wheel assembly, and particularly, the walking output shaft 101 is connected with a rear axle gearbox through a universal joint to finally realize the connection with the rear wheel assembly; the mowing output shaft 102 is vertically arranged at the bottom end of the engine 1, and independent operation of mowing and walking is achieved.

Example two: as shown in fig. 2, the outer wall of the shoe block 2022 is covered with a friction material 2022 a; the two groups of elastic components are respectively embedded in the top end and the bottom end of the shoe block; the elastic component is a spring.

Because the central shaft of the centrifugal clutch is connected with the mowing output shaft, the central shaft rotates to drive the shoe block, the shoe block is driven to rotate, the centrifugal force overcomes the contraction force of the spring, and the shoe block with the friction material adhered on the surface is combined with the driven disc, so that the cutter shaft is driven to rotate, and the cutter blade works. When the resistance of the blade is increased, the shoe block and the driven disc generate sliding friction or the rotating speed of the engine is reduced, the centrifugal force is reduced, the driving disc is separated from the driven disc, and the blade stops working, so that the output shaft of mowing, namely the crankshaft of the engine, is protected, and the blade and the cutter shaft are prevented from being damaged due to the increase of the resistance.

The utility model realizes the independent operation of walking and blade rotation by arranging two output shafts on the engine, thereby improving the adaptability of the mower; and the engine adopts the output shaft to be connected with rear wheel subassembly and blade, compares current connection mode that adopts belt drive, and axle drive is not damaged, has reduced the maintenance and the maintenance frequency of lawn mower greatly, is convenient for use widely on a large scale.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.

Claims

1. A lawn mower, comprising: the mowing machine comprises a frame and an engine, wherein a front wheel assembly is arranged at one end of the frame, a rear wheel assembly is arranged at one end of the frame, the engine is arranged on the frame, the engine is located between the front wheel assembly and the rear wheel assembly, a walking output shaft and a mowing output shaft are arranged on the engine, the walking output shaft is connected with the rear wheel assembly through a rear axle gearbox, the mowing output shaft is connected with a cutter shaft clutch assembly, the cutter shaft clutch assembly comprises a centrifugal clutch, and a blade is arranged at the bottom end of the centrifugal clutch.

2. The lawnmower of claim 1, wherein the walk output shaft is horizontally disposed and located on a side of the engine adjacent to the rear wheel assembly.

3. The lawnmower of claim 1, wherein the mowing output shaft is vertically disposed at the engine bottom end.

4. The mower according to any one of claims 1 to 3, wherein the frame is further provided with a wheel clutch control handle, and the frame is further provided with a throttle and a gearbox speed regulating box.

5. The mower according to claim 1, wherein the centrifugal clutch comprises a central shaft, a shoe block and a driven disc, the shoe block and the driven disc are sequentially sleeved on an outer ring of the central shaft, an elastic component is arranged in the shoe block along the circumference, the lower portion of the driven disc is sleeved in the shaft sleeve, and the bottom end of the driven disc is connected with the blade through a cutter shaft.

6. The mower of claim 5 wherein said shoe outer wall is coated with a friction material.

7. The mower of claim 5 wherein said resilient members are in two sets embedded in the top and bottom ends of the shoe block, respectively.

8. The mower of claim 7 wherein the resilient member is a spring.