Next to the ice arena of the Winter Olympics
There is always a group of hard-working "craftsmen"
They will be after the athletes compete and practice
Help athletes polish and adjust their skate shoes
They are the sharpeners of the national team
What is the daily routine of a sharpshooter?
Look down and find out
Skates are essential equipment for ice sports
Depending on the type of competition
Can be divided into
Pattern ice knives, hockey knives, speed skating ice knives
For professional athletes
The level of ice knife grinding technology
It will directly affect the results of the competition
Take short-track speed skating, for example
The venue is an oval track
A lap of 111.12 meters, nearly two-thirds of the curves
When athletes compete
It will be at a speed of nearly 50 km / h
Glide counterclockwise
To facilitate cornering
Short-track speed skating ice knives
Designed to be long and thin
The position, curvature, and curvature of the skates for each person
Each has its own strict parameter requirements
Introduction of the sharpener
Athletes after each slide
The parameters of the ice blade will vary
Their job is to help athletes
Trim and polish your skates
Restore these parameters
"Craftsmen" on the Ice Rink of the Winter Olympics
How does it work?
The first step in commissioning is to adjust both foot ice knives to the left. In order to help athletes overcome huge centrifugal forces when turning, maintain physical balance.
The second step is to polish the curvature and curvature of the ice blade. According to the sharpener, according to the characteristics of the athletes themselves, combined with the measurement results for polishing, the deviation of the ice knife value is less than a hair.
What is the grinding cycle of skate shoes?
If you are skating
It doesn't feel as smooth as ever
Or it is easy to fall down as soon as you make an action on the ice
This is likely to be the need to sharpen the knife
In general
Skating for about 20 hours requires sharpening the ice blades
Sharpen the knife too often
It can also affect the service life of the ice blade
Pattern ice knives and hockey knives need to be slotted
Speed skating knives, on the other hand, need to be smoothed out
How to check if the ice blade is polished?
Keep these points in mind
The standard for the polishing of pattern ice knives and hockey knives, the blade has grooves and does not need to be too deep.
The grinding standard of the speed skating ice knife requires touching the blade with your hand. The vertical blade has resistance to the touch, and it is smooth to the touch along the blade.
Except for sharpening knives
The daily maintenance of skates is also important
This knowledge to understand
Be careful not to wear skate shoes
Walk on cement or brick floors
After each skate
Dry the ice and water on the surface of the skate shoes
Untie all the laces
Place in a ventilated position to dry
And put a knife sleeve on the ice knife in time to avoid wear
If you don't wear it for a long time
Desiccant can be placed inside the shoe
And apply some oil to the surface of the ice blade
Avoid rust
Knowledge points for maintaining skate shoes
Have you mastered it all?
From: CCTV-1 "Life Tips"
Source: CCTV set