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Cutting device for lawn mower

A technology for cutting devices and lawnmowers, applied to cutters, harvesters, agricultural machinery and implements, etc., can solve the problems of cumbersome, high manufacturing costs, and complicated manufacturing processes, and achieve the effect of avoiding disassembly or installation

Active Publication Date: 2017-01-11
POSITEC POWER TOOLS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the manufacturing process of this kind of cutting blade with flanging is complicated, and the manufacturing cost is quite high; the cutting frequency of this kind of blade is high, so it is easier to wear, and the replacement of this kind of blade is cumbersome, and it needs to use professional tools to disassemble or install

Method used

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  • Cutting device for lawn mower
  • Cutting device for lawn mower
  • Cutting device for lawn mower

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0044] refer to figure 1 , figure 2 , The power mower 10 according to the embodiment of the present invention has a casing 1, and a plurality of rollers are arranged at the bottom of the casing 1 for supporting and guiding the mower 10 to move on the ground. The rollers include a pair of front wheels 5 arranged at the front of the casing 1 and a pair of rear wheels 7 arranged at the rear of the casing 1 . The casing 1 is provided with a driving device. The driving device in this embodiment is a motor (not shown in the figure), and the motor drives an output shaft (not shown in the figure) to output rotational power. An energy unit is provided inside the casing 1 to provide energy for the motor to rotate, and the energy unit in this embodiment uses a battery pack 6 . The cutting device 20 is located under the casing 1 and is connected to the output shaft and driven to rotate by a motor. The cutting device 20 includes a turntable 30 and several cutting assemblies 32 arranged...

specific Embodiment approach 2

[0052] refer to Figure 13 , Figure 14 As shown, the cutting device 20b of this embodiment has a similar structure to that of the first embodiment, the difference lies in the arrangement of the housing 25' and the cutting assembly 32a. For the convenience of expression, the same structure adopts the same number as that of the first embodiment and will not be repeated. The casing 25' is roughly rectangular, and in this embodiment, three casings 25' are evenly distributed along the circumference of the turntable 30. The cutting assembly 32a includes a cutterhead 34 arranged in a rectangular casing 25', and several blades 24 connected to the cutterhead 34, wherein the blades 24 are along the diameter of the cutterhead 34 under the elastic action of an elastic member (not shown in the figure). Extending in the rectangular housing 25', there is a gap between the free end of the blade 24 and the inner wall 25b' of the housing 25', that is to say, the free end of the blade 24 loca...

specific Embodiment approach 3

[0055] refer to Figure 15 As shown, the cutting device of this embodiment has a structure similar to that of the second embodiment. For the convenience of expression, the same structure uses the same number as the second embodiment and will not be repeated. The cutting assembly 32b is at least partially contained within the rectangular housing 25'. The cutting assembly 32b includes several blades 24. The cutting assembly 32b in this embodiment includes four blades 24 detachably fixedly connected to the rotating shaft 36, and the angle between adjacent blades 24 is 90 degrees. Wherein at least one blade 24 radially extends out of the opening 25c' of the housing 25' along the turntable (not shown in the figure), and there is a distance between the remaining blades 24 and the inner wall 25b' of the rectangular housing 25', that is to say the blades The free end of 24 is not in contact with the inner wall 25b'.

[0056] further reference Figure 16 to Figure 19 The rotating sh...

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PUM

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Abstract

The invention discloses a cutting device of a lawn mower. The cutting device comprises a rotary plate and a plurality of cutting assemblies, wherein the rotary plate is provided with a rim, and the cutting assemblies are arranged along the rim of the rotary plate. Each cutting assembly comprises a plurality of blades which are movably arranged relative to the rotary plate, wherein at least one blade can be operationally adjusted to go out of the rim of the rotary plate in the radial direction of the rotary plate. Due to the arrangement of the cutting device, the blades executing cutting can be conveniently and rapidly replaced with other blades when abraded, and troubles caused by dismounting or mounting conducted through special tools are saved.

Description

technical field [0001] The invention relates to a working part of a power tool, in particular to a cutting device of a lawnmower. Background technique [0002] Ordinary power lawn mowers usually use a single-piece cutting blade. The middle part of the cutting blade is a connecting part, which is connected to the output shaft of the power lawn mower through a fastening device, and the output shaft is driven to rotate for cutting the lawn. In order to improve the cutting effect, the structure of the single-piece cutting blade has been improved. The most common way is to set widened flanges at both ends of the cutting blade, and set the main mounting hole in the middle to connect to the lawn mower through a fastening device. Output shaft. However, the manufacturing process of this kind of cutting blade with flanging is complicated, and the manufacturing cost is quite high; the cutting frequency of this kind of blade is high, so it is easier to wear, and the replacement of this...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01D34/73
CPCA01D34/736
Inventor 王家达
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD