A brief description of an angle grinder, the type of grinder of a grinder

Common grinding machines include dust removal grinders, desktop grinders, vertical grinders, suspended grinders, hand-held grinders, hand-pushed grinders, it drive grinders, explosion-proof grinders and so on. Each grinder model is different, Westlake desktop M3220 grinder, M stands for the pinyin initials of the grinder, 32 is the general name of the desktop grinder, the last two represent the diameter of the grinding wheel equipped with this grinder, that is, the old model S3ST-200, S3ST represents the three-phase desktop grinder, 200 is the diameter of the grinding wheel, MD3220, S2ST-200 is the single-phase (220V) desktop grinder Westlake vertical M3020 grinder, 30 is the general name of the vertical grinder, 20 means the diameter of the grinding wheel 200, and the old model S3SL-200 is a three-phase vertical 200mm grinder. West Lake MC3020 (M3320) dust removal grinder....

In the manufacturing and maintenance of ships, boilers, chemical machinery and various machinery, it is used for metal processing operations to remove hair, chamfer various grinding operations, remove burrs and oxide scale, grind welds, sanding, polishing and other operations. It has the characteristics of light and powerful, easy to operate, with adjustment switch, which can control the speed according to the purpose of operation, and is safe and reliable.

There are too many types of grinders, I will tell you about the existing grinder styles in our West Lake, mainly including: desktop grinder, vertical grinder, dust removal grinder (dust grinding machine), filter plate grinder, explosion-proof grinder, it drive grinder, suspended grinder, hand-held grinder, robot special grinder, side grinder, waterproof grinder, water grinding grinder, hand push grinder, flexible shaft grinder and so on.

Desktop grinder Vertical grinder is also known as floor grinder Dust removal grinder is also known as environmentally friendly grinder, dust suction grinder Hand-held grinder Suspended grinder It drive grinder Flexible shaft grinder Explosion-proof grinder Filter plate grinder (filter plate dust removal grinder) Dust removal side grinder.

It is mainly composed of pedestal, grinding wheel, motor or other power source, bracket, protective cover and water feeder, etc., the grinding wheel is arranged on the top surface of the base, the base has the space for accommodating the power source, the power source drives a reducer, the reducer has a transmission shaft that penetrates out of the top surface of the base for fixing the grinding wheel, the bottom position of the base corresponding to the grinding wheel has a concave water collection area, the water collection area extends outward to the first-class road, the water feeder is located above one side of the grinding wheel, and the water feeder has a space containing water liquid, And the side of the water feeder corresponding to the grinding wheel has a water outlet. It has the effect that the overall transmission mechanism is very streamlined and perfect, which makes the grinding process more convenient and smooth, and improves the grinding efficiency of the overall grinder.

The grinding wheel is brittle and the speed is very high, so the safety operation procedures should be strictly adhered to when using. Operational process.

1. The rotation direction of the grinder should be correct, which can only make the grinding chips fly down away from the grinding wheel.

2. After the grinder starts, grinding should be carried out after the grinder rotates smoothly. If the grinder runout is obvious, it should be stopped in time for trimming.

3. A distance of 3mm should be maintained between the grinder bracket and the grinding wheel to prevent accidents caused by workpiece penetration.

4. When grinding, you should stand on the side of the grinder, and the force should not be too large.

5. According to the manual of the grinding wheel, select the grinding wheel that is consistent with the number of revolutions of the main shaft of the grinder.

6. The newly collar grinding wheel must have a factory certificate or inspection test mark. If there are defects in the quality, hardness, particle size and appearance of the grinding wheel before installation, it cannot be used.

7. When installing the grinding wheel, the gap between the inner hole of the grinding wheel and the spindle should not be too tight, and it should be generally controlled between millimeters according to the technical requirements of loose fit.

8. Flanges should be installed on both sides of the grinding wheel, and its diameter should not be less than one-third of the diameter of the grinding wheel, and the liner should be padded between the grinding wheel and the flange.

9. When tightening the nut, use a special wrench, not too tight, and it is strictly forbidden to hammer with hard things to prevent the grinding wheel from being broken and broken.

10. After the grinding wheel is installed, it is necessary to install the protective cover, baffle and bracket. The gap between the baffle and the bracket and the grinding wheel should be kept within 1 3 mm and slightly below the center of the grinding wheel.

11. When the newly installed grinding wheel is started, don't be in a hurry, check it first, and use it after 5 or 10 minutes of trial rotation.

12. Do not use too much force during the initial grinding, so as to avoid accidents caused by uneven force on the grinding wheel.

13. It is forbidden to grind copper, lead, wood and other things to prevent the grinding wheel from being impacted.

14. When sharpening the knife, the person should stand on the side of the grinder, and two people are not allowed to sharpen the knife on a grinding wheel at the same time.

15. Knives with a long grinding time should be cooled in time to prevent hot hands.

16. Frequently trim the balance of the grinding wheel surface and keep it in good condition.

17. Sharpening personnel should wear protective glasses.

18. The vacuum cleaner must be intact and effective, if a fault is found, it should be repaired in time, otherwise the sharpening should be stopped.

Angle grinder is a kind of machine used for metal processing operations to remove wool and chamfering cavities such as various grinding operations in shipbuilding, boiler, chemical machinery and various machinery manufacturing and maintenance work.

Those who are not in this workshop or are not familiar with the equipment shall not use it without the permission of the workshop director. The grinding wheel must be worn with a grinding wheel cover, and the bracket should not be more than 5mm away from the grinding wheelAll users should wear protective goggles, not facing the grinding wheel, but standing on the side.

The grinding wheel is limited to grinding tools, and must not grind bulky materials or thin iron plates, as well as soft materials (aluminum, copper, etc.) and wood products. After the grinder starts, it is necessary to wait for the grinding wheel to run smoothly before grinding, and the pressure should not be too large or too strong.

Three sides of the grinding wheel (both sides and surrounding) should not be ground at the same time.

The new grinding wheel should be checked for cracks before replacing, and it should be idled for 10 minutes before it can be used. In the process of use, it is necessary to check whether the grinding wheel has cracks, abnormal sounds, swings, jumps and other phenomena, and if it occurs, it should be stopped immediately and reported to the workshop director. After use, the brake should be pulled to maintain hygiene.

Hand-held grinders are divided into vertical grinders and angular grinders, and our Westlake hand-held grinders (below) are all vertical.

The grinder is a common equipment used to sharpen various knives and tools. It is mainly composed of a base, a grinding wheel, a motor or other dynamic material power source, a finger bracket, a protective cover and a water feeder.

The characteristics of the work are: the material enters the sand making machine by the feed hopper, the material is divided into two parts by the distributor, one part enters the high-speed rotating impeller from the middle of the distributor, and is rapidly accelerated in the impeller, and its acceleration can reach hundreds of times the gravitational acceleration, and then at a speed of 60-70 meters per second from the impeller three evenly distributed runners are ejected, first with a part of the material that falls from the separator around the self-collection and crushing, and then impacts the material lining layer in the vortex chamber together, and is lined by the material**, The oblique upward impact to the top of the vortex cavity changes its direction of motion, deflects to downward motion, and the material emitted from the impeller channel forms a continuous material curtain. Such a piece of material is subjected to two or more chance of impact, friction and grinding in the vortex crushing chamber.

The crushed material is discharged from the lower discharge port. In the whole crushing process, the materials are crushed by their own impact on each other, not in direct contact with the metal components, but with the material lining impact, friction and crushing, which reduces the angle pollution and prolongs the mechanical wear time. The ingenious self-circulation of the air flow inside the vortex chamber eliminates dust pollution.

The material falls into the feed hopper, enters the high-speed rotating rotor through the central feed hole, is fully accelerated and thrown out through the launch port, first collides with a part of the material that falls freely after the first time, and then impacts the vortex material lining (or on the counterattack block) in the surrounding vortex cavity, first to the top of the crushing chamber, and then deflects to the downward movement, and the material emitted from the impeller flow channel collides to form a continuous material curtain, and finally discharged through the lower discharge port.