Regular use of chainsaws involves the purchase of a special grinding machine. It is noted that sharpening the saw chain using the machine and preparing the saw for work shorten the time and strength of the worker. But to sharpen the cutting chain is recommended by the rules. What does the Home Master advise about this?
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Saw power tools - ABC for MASTER
A tool specially developed for the needs of gardeners is chain saws. The solid capacity of the unit and the high speed of the chain allow you to clear the backyard or farm from the vegetation.
The dizzying performance of the chainsaw and the high resource of using the saw garden tool justify the high cost for a short period of time. But as with any cutting tool in the process of working, the teeth of the chain are grinded away from mechanical loads.
To sharpen the chain of the tool, you can do it yourself, having studied the chainsaw device and the technical characteristics of chain sharpening.
Tooth for a tooth - corners of attacking cutting links
Models of chainsaw chainsaws are a classic mechanism, the work of which is carried out with the help of an internal combustion engine of single-cylinder. The main parts of the unit are:
• profile chain
• Saw Headset (Tire)
• anti-vibration system
• Continuous lubrication system
• Brake when the saw is retracted and retracted.
Chains designed for gasoline or electric saws, manufacturers are made from a special procurement chain material.
Depending on the model of the chainsaw, the chain of the rivet on the required number of teeth. There are three types of chain links: leading (shank), cutting and connecting.
There are low-profile chains - a pitch of 0.325 inches and high profile with a pitch of 3/8 or 0.404 inches. The difference in the dimensions of the cutting links and teeth, as well as the cut-off depth limiters, determine the profile of the tool. According to the characteristics of chainsaws, two types of chains can be distinguished: longitudinal and transverse. The best model of chainsaw is considered to be an aggregate with a longitudinal engine arrangement and a balanced center of gravity.
Overclocking up to a hundred or test drive chainsaws
The main component of the success of gasoline chain saws is a powerful acceleration with a rapid speed after the start and a stop lightning stop of the unit in a fraction of a second. Naturally, such an "acceleration to a hundred" should provide the engine and a well-sharpened chain.
Parameters of chain teeth
Upon closer examination of the cutting chain link, the following elements are clearly defined:
- scapula
- base of link
- depth stopper.
On the tooth blade there is a vertical end blade and a horizontal upper blade. To achieve optimal cutting properties, the blade of the saw tooth must have certain angles of attack.
The blade of the tooth forms the angle of the end blade, and the back of the tooth - the angle of the upper blade, which engages in the material. The links of the saw with manual grinding form an angle of 60 to 85 degrees.
The most important angle of attack is the upper blade and its angle is 50-60 degrees.
Sharpening the cutting edge of the saw teeth can be done manually using a file. However, this requires a special clamping device, a lot of time and mechanical efforts of the grinder.
Therefore, during the operation of the cutting unit, the appearance of a grinding machine for chains is justified.
Electric grinding machines for saw chains
The main purpose of the machine for chains is correct grinding, which allows creating conditions for high productivity of the cutting unit.
grinding machine design
Structurally, the electric grinding machine consists of the following elements:
• bases and stands for placing the chain
• grinding head grinding head
• electric drive with power supply unit
• Counterweight with load.
specifications
The main technical characteristics of the electric machine are: power, voltage and frequency of the current, the number of revolutions of the cutting blade (up to 3000 rpm) and its diameter (147x22.3x3.2 mm).
Work on the machine for sharpening chains will require the availability of additional tools and equipment that will ensure maximum safe performance:
• automatic chain clamping
• chain tension regulator
• Intrinsically safe screen
• wet grinding functions
• cooling systems.
All additional information on the issue: "How to sharpen the chain" is provided by the manufacturer in the operating instructions.
What are the grinding machines for chainsaw chain is presented here.
Independent work on the machine
The mechanism for adjusting the working part of grinding machines allows you to set the necessary parameters relative to the dimensions of the "control" tooth. Editing of the chain teeth is carried out by fitting the length dimension of the upper edge along the smallest tooth.
For these purposes, the machine models are equipped with devices that allow the angle of rotation of the saw chain clamping in the vertical and horizontal planes to be set.
It is recommended to sharpen each tooth separately.
Sharpening is performed manually by feeding the grinding wheel to the chain installed and fastened in the clamping holders.
Sharpening of one tooth is made by 2 or 3 movements of a rotating grinding wheel on one side of the saw set. Similarly, the tooth is sharpened by a second drill on the other side of the blade of the blade.
How to make a sharpening of the chainsaw chain saw by hand, is shown in the video.
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