Protective cover installation requirements
1. All shaft ends are equipped with protective devices. The protective cover of the rotating machinery includes the protective cover of all exposed rotating parts of the rotating machinery, including the rotating machinery couplings, transmission belts, mechanical seals, etc. (or packing). Part; 2. All the levers, cams, transmissions or shafts that perform rotating or oscillating movements are equipped with protective devices; 3. All conveyor belts are equipped with protective fences (especially pay attention to the conveyor belt below), the closing device of the head and tail rollers; 4. All The belt transmission device and the chain transmission device are equipped with protective devices; 5. Under normal circumstances, the moving parts can be touched to install protective devices or closed; 6. If these devices cannot be installed with effective protective devices, they should be closed. Mechanical equipment protection Safety requirements for the cover 1. The structure and layout of the protective cover should be reasonably designed so that the human body cannot directly enter the hazardous area.
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2. The shield should use closed mechanism as much as possible. When the mesh structure is needed, it should meet the following requirements:
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1) When preventing the finger tip from passing through and causing injury, the opening width: diameter and side length or the short axis size of the oval hole should be less than 6.5mm, and the safety distance should not be less than 35mm.
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2) When preventing the finger from passing through and causing injury, the opening width: diameter and side length or the short axis size of the oval hole should be less than 12.5mm, and the safety distance should not be less than 92mm.
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3) When the upper limb is prevented from passing through and causing injury, the opening width: diameter and side length or the short axis size of the oval hole should be less than 47mm, and the safety distance should not be less than 460mm.
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4) When preventing the toes from passing by mistake, the gap between the bottom of the shield and the ground (or standing platform) should be less than 76mm, and the safety distance should not be less than 150mm.
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3. The protective cover should be painted with yellow paint on both sides, and the direction of rotation (white) arrow should be painted on the top middle of the protective cover. The size of the arrow depends on the size of the protective cover. The length of the arrow is less than 0.5 times the length of the protective cover , The width of the arrow is less than 0.2 times the width of the protective cover.
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4. The protective cover for mechanical equipment should be a fixed protective cover. The moving parts that are frequently adjusted and maintained should be given priority to the interlocked protective cover. When the conditions do not allow, an open or adjustable protective cover can be used.
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5. The surface of the protective cover is smooth without burrs and sharp edges, and it is strictly forbidden to generate new sources of danger. Before assembly, remove all processing waste from the inside of each part, such as metal cutting, filler, etc., and remove all rolling debris from the inner and outer surfaces.
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6. The design of the protective cover does not affect the line of sight and normal operation, which is convenient for the inspection and maintenance of the equipment and the patrol inspection of the operating personnel.

What should be paid attention to in the daily maintenance of the telescopic protective cover:
1. The telescopic protective cover can be used vertically or horizontally, which brings greater convenience to consumers. When the machine tool protective cover is used horizontally, it is recommended that you use plastic or aluminum support rings to ensure protection. The uniform distance between the inner cavity of the hood and the screw can extend the service life.
2. The stretching length of the telescopic protective cover can be added with a metal ring in each compromise. The purpose of this is to improve the stability of the machine tool protective cover.
3. Iron or steel machine tool protective cover should avoid its rust, the power of the machine tool protective cover will be reduced after rust, and it will not be used normally over time.
4. Complete cleaning at least once every 2 months, and molybdenum disulfide at least once a day. Check the wear of each part, whether the pressure is normal, etc.
5. After working for a long time, check whether there is excellent accuracy and smoothness. Smoothness is very important for the machine tool protective cover.
Telescopic protective cover is a commonly used protective cover on machine tools. Its use environment is also relatively harsh and the quality requirements are also very high. Therefore, it is necessary to pay attention to its daily maintenance