5 thoughts on “How many circles are reserved at least how much lap of steel wire rope is reserved on the rolling tube after the maximum working length is released.”
Angie
After the lifting steel wire rope releases the maximum working length, the wire rope on the roll tube retains at least 3 times. The provisions in the GB 5144-2006 of the “Tower crane safety regulations”: 5.4.3 The fixation of the wire rope on the roll should be safe and reliable, and meets the relevant requirements in 5.2.3. After the steel wire rope releases the maximum working length, the wire rope on the roller should be kept at least 3 times. The expansion data E each tower machine must use many lifting parts, the largest number, the technical requirements are strict and the specifications are complicated. The wire rope for the tower machine is different from the function of the pyramid, the steel wire rope, the turning steel wire rope, the arm frame pull the rope, the balancing arm pulls the rope, the car traction rope, etc. The characteristics of the wire rope are: the intensity of the whole root is high, and the whole cross section is the same size, the intensity is the same, the self -heavily light, can withstand the vibration load, large elasticity, can be wrapped into a plate, can balance at high speed, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds. Without noise, the skin will produce a lot of burrs after wear, which is easy to find and facilitate timely disposal. The wire rope is usually rubbed from a stream of 0.3 to 0.4mm fine steel wire into rope stocks, and then twisted from the stock to rope. The tower machine uses interactive twist, which is characterized by not easy to loosen and reverse. As far as the shape of the rope stock section is concerned, the tower machine for high -rise buildings is most suitable to use multiple shares without twisting steel wire ropes. This kind of wire rope is composed of two -layer rope stocks. Twisted, the free end does not reverse when the force is. The safety coefficients of the tower machine to lift the wire rope and the turning steel wire rope are generally taken to 5 to 6, the safety coefficient of the car traction rope and the arm rack rope is taken to 3, and the safety factor of the elevator elevator elevator should not be less than 10. The safety coefficient of the wire rope is an indispensable safety reserve coefficient. It must not allow the maximum allowable safety load to increase the steel wire rope without authorization. Due to the importance of the wire rope, the regular comprehensive inspection of the wire rope must be strengthened. It is stored in a warehouse with a warehouse with a closed surface, wooden floor or asphalt concrete, to avoid corrosion. Do not damage the surface during loading and unload. Do not damage the surface during loading. Position. System lubrication of wire rope can improve the service life. Reference materials Source: Baidu Encyclopedia-Tower crane Reference Data Source: National Standard Electronic Book Library -GB5144-2006: Tower crane safety regulations
After the lifting steel wire rope releases the maximum working length, the wire rope on the roll tube retains at least 3 times. The provisions in the GB 5144-2006 of the “Tower crane safety regulations”: 5.4.3 The fixation of the wire rope on the roll should be safe and reliable, and meets the relevant requirements in 5.2.3. After the steel wire rope releases the maximum working length, the wire rope on the roller should be kept at least 3 times. The height of the edge of the roller on both sides of the tube should not be less than twice the diameter of the steel wire rope. Is when the maximum starting weight does not exceed 1T, the car traction agency allows a friction traction method. Pucting information: The fixation of the wire of the wire rope shall meet the following requirements: 1. When the wire is cooked with a wire rope, it shall comply with the regulations in GB/T 5976. 85%of the broken tension; 2. When the fixation is knotted, the editing length should not be less than 20 times the diameter of the wire rope, and it is not less than 300mm. When fixing with wedge -shaped connectors, wedge and wedge sleeve shall comply with the provisions of GB/T 5973. The fixed intensity shall not be less than 75%of the tension of the wire rope; The fascination intensity should reach the broken tension of the wire rope; 5, when the aluminum alloy is used to suppress the linked connection, the fixed intensity should reach 90%of the tissue of the wire rope; In GB/T 5975, the fixed intensity should reach the broken tension of the wire rope. The tower machine should be used to use no rotating wire rope. When the steel wire rope is used at the end, the end of its rope should be equipped with a anti -twist device. Reference information Source: National Standard Electronic Book Library -GB5144-2006: Safety Regulations for Tower Cranes
The security regulations of the tower crane stipulated in the GB 5144-2006: 5.4.3 The fixation of the wire rope on the roll should be safe and reliable, and meets the requirements of 5.2.3. After the steel wire rope releases the maximum working length, the wire rope on the roller should be kept at least 3 times.
The security regulations of the tower crane stipulated in the GB 5144-2006: 5.4.3 The fixation of the wire rope on the roll should be safe and reliable, and meets the requirements of 5.2.3. After the steel wire rope releases the maximum working length, the wire rope on the roller should be kept at least 3 times.
The “People’s Republic of China” is to strengthen production safety, prevent and reduce production safety accidents, ensure the lives and property safety of the people, promote the sustainable and healthy development of the economy and society, and formulate this law.
After the lifting steel wire rope releases the maximum working length, the wire rope on the roll tube retains at least 3 times.
The provisions in the GB 5144-2006 of the “Tower crane safety regulations”:
5.4.3 The fixation of the wire rope on the roll should be safe and reliable, and meets the relevant requirements in 5.2.3. After the steel wire rope releases the maximum working length, the wire rope on the roller should be kept at least 3 times.
The expansion data
E each tower machine must use many lifting parts, the largest number, the technical requirements are strict and the specifications are complicated. The wire rope for the tower machine is different from the function of the pyramid, the steel wire rope, the turning steel wire rope, the arm frame pull the rope, the balancing arm pulls the rope, the car traction rope, etc.
The characteristics of the wire rope are: the intensity of the whole root is high, and the whole cross section is the same size, the intensity is the same, the self -heavily light, can withstand the vibration load, large elasticity, can be wrapped into a plate, can balance at high speed, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds, and can balance at high speeds. Without noise, the skin will produce a lot of burrs after wear, which is easy to find and facilitate timely disposal. The wire rope is usually rubbed from a stream of 0.3 to 0.4mm fine steel wire into rope stocks, and then twisted from the stock to rope.
The tower machine uses interactive twist, which is characterized by not easy to loosen and reverse. As far as the shape of the rope stock section is concerned, the tower machine for high -rise buildings is most suitable to use multiple shares without twisting steel wire ropes. This kind of wire rope is composed of two -layer rope stocks. Twisted, the free end does not reverse when the force is.
The safety coefficients of the tower machine to lift the wire rope and the turning steel wire rope are generally taken to 5 to 6, the safety coefficient of the car traction rope and the arm rack rope is taken to 3, and the safety factor of the elevator elevator elevator should not be less than 10. The safety coefficient of the wire rope is an indispensable safety reserve coefficient. It must not allow the maximum allowable safety load to increase the steel wire rope without authorization.
Due to the importance of the wire rope, the regular comprehensive inspection of the wire rope must be strengthened. It is stored in a warehouse with a warehouse with a closed surface, wooden floor or asphalt concrete, to avoid corrosion. Do not damage the surface during loading and unload. Do not damage the surface during loading. Position. System lubrication of wire rope can improve the service life.
Reference materials Source: Baidu Encyclopedia-Tower crane
Reference Data Source: National Standard Electronic Book Library -GB5144-2006: Tower crane safety regulations
After the lifting steel wire rope releases the maximum working length, the wire rope on the roll tube retains at least 3 times.
The provisions in the GB 5144-2006 of the “Tower crane safety regulations”:
5.4.3 The fixation of the wire rope on the roll should be safe and reliable, and meets the relevant requirements in 5.2.3. After the steel wire rope releases the maximum working length, the wire rope on the roller should be kept at least 3 times.
The height of the edge of the roller on both sides of the tube should not be less than twice the diameter of the steel wire rope.
Is when the maximum starting weight does not exceed 1T, the car traction agency allows a friction traction method.
Pucting information:
The fixation of the wire of the wire rope shall meet the following requirements:
1. When the wire is cooked with a wire rope, it shall comply with the regulations in GB/T 5976. 85%of the broken tension;
2. When the fixation is knotted, the editing length should not be less than 20 times the diameter of the wire rope, and it is not less than 300mm. When fixing with wedge -shaped connectors, wedge and wedge sleeve shall comply with the provisions of GB/T 5973. The fixed intensity shall not be less than 75%of the tension of the wire rope; The fascination intensity should reach the broken tension of the wire rope;
5, when the aluminum alloy is used to suppress the linked connection, the fixed intensity should reach 90%of the tissue of the wire rope; In GB/T 5975, the fixed intensity should reach the broken tension of the wire rope.
The tower machine should be used to use no rotating wire rope. When the steel wire rope is used at the end, the end of its rope should be equipped with a anti -twist device.
Reference information Source: National Standard Electronic Book Library -GB5144-2006: Safety Regulations for Tower Cranes
The security regulations of the tower crane stipulated in the GB 5144-2006:
5.4.3
The fixation of the wire rope on the roll should be safe and reliable, and meets the requirements of 5.2.3. After the steel wire rope releases the maximum working length, the wire rope on the roller should be kept at least 3 times.
At least the reserved length from 2 to 3 laps
The security regulations of the tower crane stipulated in the GB 5144-2006:
5.4.3
The fixation of the wire rope on the roll should be safe and reliable, and meets the requirements of 5.2.3. After the steel wire rope releases the maximum working length, the wire rope on the roller should be kept at least 3 times.
The “People’s Republic of China” is to strengthen production safety, prevent and reduce production safety accidents, ensure the lives and property safety of the people, promote the sustainable and healthy development of the economy and society, and formulate this law.