Cutting blade of spiral cutter type lawn mower and spiral cutter type lawn mower

A technology for cutting blades and lawn mowers, which is applied to cutters, harvesters, agricultural machinery and implements, etc. It can solve problems such as loud noise, and achieve the effects of avoiding resonance, accelerating cutting speed, and improving cutting effect

Pending Publication Date: 2018-08-21
ZHEJIANG YAT ELECTRICAL APPLIANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the double blades are cutting grass blades, the grass blades will generate impact loads on the cutting parts of the cutting blades, causing the cutting parts at both ends to vibrate, causing a lot of noise and negatively affecting the surrounding environment

Method used

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  • Cutting blade of spiral cutter type lawn mower and spiral cutter type lawn mower
  • Cutting blade of spiral cutter type lawn mower and spiral cutter type lawn mower
  • Cutting blade of spiral cutter type lawn mower and spiral cutter type lawn mower

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 As shown, the present invention provides a cutting blade of a rotary knife mower, the cutting blade is provided with three connecting holes 1 for installing connecting parts, the cutting blade is connected with the output shaft of the motor through the connecting parts and rotates around the cutting blade Center rotation. The cutting blade includes a first section 81 of the cutting blade and a second section 82 of the cutting blade, and the center of rotation of the cutting blade is set on the boundary line between the first section 81 of the cutting blade and the second section 82 of the cutting blade.

[0038] The cutting blade includes a cutting portion 2 arranged at the end of the first section 81 of the cutting blade, and the cutting portion 2 includes a cutting edge 21 . During the rotation of the cutting blade, the cutting edge 21 of the cutting part 2 cuts the blade of grass. Adopting a single-blade structure with a cutting part at only one end,...

Embodiment 2

[0047] Such as Figure 4 As shown, the present invention provides a cutting blade of a rotary lawn mower, which is different from the cutting blade of a rotary lawn mower provided in Embodiment 1 in that in this embodiment, the cutting blade A noise reduction groove 7 is provided at the end of the air lifting part 4 . Since the air lifting portion 4 is at an inclination angle to the rotation plane of the cutting blade, during the rotation of the cutting blade, the air flow passing through the air lifting portion 4 will generate air resistance against the cutting blade in the direction of rotation of the cutting blade. By arranging the noise reduction groove 7 at the end of the air lifting part 4, the windward area of ​​the air lifting part 4 is reduced to reduce the air resistance caused by the air lifting part, thereby reducing noise.

[0048] Further, the noise reduction groove 7 is wave-shaped. It can be understood that the noise reduction groove 7 can also be zigzag. Th...

Embodiment 3

[0052] Such as Figure 5 As shown, the present invention provides a cutting blade of a rotary lawn mower, which is different from the cutting blade of a rotary lawn mower provided in Embodiment 2 in that in this embodiment, the noise reduction groove 7 is a V-shaped groove extending from the air lifting part 4 to the cutting part 2, and the noise reduction groove 7 is arranged on the side of the air lifting part close to the rotation center of the cutting blade. In this embodiment, the air lifting part 4 has a good air lifting function, and the V-shaped noise reduction groove 7 on one side greatly reduces the windward area of ​​the air lifting part 4, reducing air resistance.

[0053] The remaining structure of the cutting blade of a rotary lawn mower in embodiment 3 is the same as the cutting blade of a rotary lawn mower in embodiment 2 which is not described in embodiment 3.

[0054] This embodiment also provides a rotary lawnmower comprising the above-mentioned cutting bla...

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PUM

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Abstract

The invention provides a cutting blade of a spiral cutter type lawn mower and the spiral cutter type lawn mower. The cutting blade is in a platy shape and rotates around the rotating center. The cutting blade comprises a first section and a second section. A cutting part is arranged on the cutting blade and is only arranged at one end of the first section. A balance weight part is further arrangedon the cutting blade. The cutting part comprises a cutting edge at the front end of the cutting part. The cutting edge comprises a cutting inclined face facing downwards. The cutting blade is low invibration noise, long in service life and good in mowing effect.

Description

technical field [0001] The invention relates to the technical field of lawn mowers, in particular to a cutting blade of a rotary lawn mower and the rotary lawn mower. Background technique [0002] As one of the most basic operations of lawn trimming, mowing requires the use of simple and efficient mowing machinery to complete the mowing tasks with quality and quantity. The rotary lawn mower is a blade suspended horizontally on the vertical shaft at high speed to cut the blades on the upper part of the grass. Because of its low price, convenient maintenance and repair, and flexible use, the rotary lawn mower has become a widely used Lawn mower. [0003] The cutting blades of rotary knife mowers in the prior art are all double blades, that is, cutting parts are arranged at both ends of the cutting blades, and the cutting blades rotate around the center of rotation between the two cutting parts to cut grass blades. When the double blades are cutting the blades of grass, the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01D34/73
CPCA01D34/73
Inventor 邹斌张进张闯
Owner ZHEJIANG YAT ELECTRICAL APPLIANCE CO LTD
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