1 range
The process standards applicable to the rated load 5000kg and below, rated speed 3m / s and the following types of domestic traction drive rope elevator installation works.
2 construction preparation
2.1 Equipment, material requirements:
2.1.1 Specification of steel wire ropes Meet the design requirements, no dead bending, rust, pine, broken wire phenomenon, linen core grease without drying phenomenon, and keep clean.
2.2.2 The number, quality and specification of the rope head and its components meet the design requirements.
2.1.3 The amount of tungsten (babbitt) to be prepared enough.
2.1.4 Section 2.5mm2 above the copper; Lead wire 20; gasoline, kerosene, cotton.
2.2 The main equipment:
Hammer, chop (cut wire rope tools), complete sets of gas welding tools, torch, tin pot, box ruler, Rally scales.
2.3 Operating conditions:
2.3.1 place to do rope should be kept clean, tungsten melting place where there are fire prevention measures.
2.3.2 release wire rope should be clean and spacious venue to ensure that the wire rope surface from dirt.
3 operating process
3.1 single-winding process:
Determine the length of wire rope → open wire rope, cut wire rope → do rope, hanging wire rope → adjust the rope
3.2 rewinding process:
Determine the length of wire rope → open wire rope, cut wire rope → hang steel wire rope, do rope → install rope head →
Adjust the wire rope
3.3 determine the length of wire rope:
In the car and the corresponding rope head on the corresponding position of the rope were fitted with a rope tight. Double-nut on the rope head to install just to be able to bear on the cotter pin. Lift the rope head lever (so that the spring on the rope head to compress the direction of the force), with more than 2.5mm2 copper wire as shown in Figure 5-96 to measure the car rope cone exports to the cone head cone The length X of the exit.
The rope length L is determined by the following formula:
Single-winding: L = 0.996 × (X + 2Z + Q)
Rewinding type: L = 0.996 × (X + 2Z + 2Q)
Where: Z is the length of the wire rope in the cone (including the wire rope in the rope back part of the cone); Q for the car from the door sill height (Figure 5-96).
3.4 put steel wire rope, chopped wire rope:
In a clean spacious place to open the wire rope, wire rope inspection should be no dead bend, corrosion, broken wire situation. After the length of the wire rope is determined as described above, the wire rope is bound to a width of 15 mm at a distance of 5 mm from both ends of the chop, and then the wire rope is bound to the length Z in the funnel, ), And then cut off the wire rope with a chop.
3.5 hang wire rope, do rope head:
3.5.1 In the lanyard, should first open the wire rope, so that the free hanging in the shaft, the elimination of internal stress. Lanyard rope if the oil before the discovery, more slag, cotton yarn can be soaked with kerosene, wring dry after the wire rope to clean, prohibit the direct cleaning of steel wire rope to prevent the grease was washed off.
3.5.2 single-winding elevator rope to do first after the rope. Rewinding elevator rope as the rope through the rewinding round more difficult, so first to do after hanging rope rope. Or do the first side of the rope head, to be linked to a good rope and then do the other side of the rope.
3.5.3 will be cut after the wire rope, penetrate the cone, will cut the mouth banding lead wire demolition, loosen the strands, remove the core, with gasoline to clean the rope shares, according to the required size bend back, will bend good Rope stranded into the taper sleeve, the gate at the asbestos cloth or cement bag paper bandage, the next mouth with asbestos rope or cotton tight, the sequence shown in Figure 5-98.
3.5.4 rope head watering before the rope head taper sleeve should be cleaned inside the oil debris, watering should be taken before the slow heating method so that the temperature of the taper set to about 100 ℃, re-watering.
3.5.5 tungsten gold water temperature is appropriate to 350 ℃, tungsten to take indirect heating and melting, the temperature measured by thermocouple or when the paper into the cement bag immediately charred but not burning is appropriate. Water tungsten surface cleaning of impurities, water must be completed once, watering when the rope head, so that tungsten gold filling, irrigation before immersion can not be moved.
3.6 There are two ways to adjust the wire rope tension:
3.6.1 Measure and adjust the height of the rope head spring so that it is consistent, and its height error can not be greater than 2mm.
This method should be prior to the selection of all the springs, so that the same rope head device on the same height of the spring, rope head device shown in Figure 5-99.
3.6.2 With 100 ~ 150N (10 ~ 15kg) of spring species in the shaft 3/4 height (people standing on top of the car) to pull out the rope the same distance, the difference between the tension of not more than 5% , To meet the requirements of adjustment.
After the tension of the rope is adjusted, the double nuts on the rope head must be tightened, the pins should be well cut and the tightening of the rope head should be adjusted.
4 quality requirements
4.1 Warranty items:
Wire rope should be wiped clean, no dead bend, pine, rust, broken wire phenomenon.
Inspection methods: observation and inspection.
4.2 Basic Items:
The tension difference of each wire rope is less than 5%.
Test method: the car in the hoistway 2/3 height, with 50 ~ 100N (≈ 5 ~ 10kg) of the spring scales in the car to pull the same pull on the tension side of the rope tension, whichever is the average . And then the tension difference between each rope and the average value of comparison.
4.3 rope head tungsten gold pouring dense, plump, smooth and consistent. Once with the taper sleeve leveling, and can observe the bending of the rope to meet the requirements.
Inspection methods: observation and inspection.
5 protection of finished products
5.1 Wire rope, rope components, etc. In the transport, storage and installation process, no mechanical damage. Do not place in open air or in damp places.
5.2 The use of electrical welding should be careful not to damage the rope. Do not use wire rope for wire.
6 should pay attention to quality problems
6.1 If the wire rope is dirty, wipe it with cotton wool wiped with kerosene and wring it out. Do not clean it directly to prevent the grease from being washed off.
6.2 wire rope can not be used when welding, so as not to damage the rope strength.
6.3 for the rope head to be removed when the use of sawtooth saw blade or cut with a knife, not burned with fire.
6.4 Before installing the wire rope, make sure the wire rope hangs naturally in the hoistway to eliminate its internal stress.
6.5 rewinding elevator in the engine room or soundproof layer rope head board device, must be mounted on the handle structure, not directly on the floor.
The process standards applicable to the rated load 5000kg and below, rated speed 3m / s and the following types of domestic traction drive rope elevator installation works.
2 construction preparation
2.1 Equipment, material requirements:
2.1.1 Specification of steel wire ropes Meet the design requirements, no dead bending, rust, pine, broken wire phenomenon, linen core grease without drying phenomenon, and keep clean.
2.2.2 The number, quality and specification of the rope head and its components meet the design requirements.
2.1.3 The amount of tungsten (babbitt) to be prepared enough.
2.1.4 Section 2.5mm2 above the copper; Lead wire 20; gasoline, kerosene, cotton.
2.2 The main equipment:
Hammer, chop (cut wire rope tools), complete sets of gas welding tools, torch, tin pot, box ruler, Rally scales.
2.3 Operating conditions:
2.3.1 place to do rope should be kept clean, tungsten melting place where there are fire prevention measures.
2.3.2 release wire rope should be clean and spacious venue to ensure that the wire rope surface from dirt.
3 operating process
3.1 single-winding process:
Determine the length of wire rope → open wire rope, cut wire rope → do rope, hanging wire rope → adjust the rope
3.2 rewinding process:
Determine the length of wire rope → open wire rope, cut wire rope → hang steel wire rope, do rope → install rope head →
Adjust the wire rope
3.3 determine the length of wire rope:
In the car and the corresponding rope head on the corresponding position of the rope were fitted with a rope tight. Double-nut on the rope head to install just to be able to bear on the cotter pin. Lift the rope head lever (so that the spring on the rope head to compress the direction of the force), with more than 2.5mm2 copper wire as shown in Figure 5-96 to measure the car rope cone exports to the cone head cone The length X of the exit.
The rope length L is determined by the following formula:
Single-winding: L = 0.996 × (X + 2Z + Q)
Rewinding type: L = 0.996 × (X + 2Z + 2Q)
Where: Z is the length of the wire rope in the cone (including the wire rope in the rope back part of the cone); Q for the car from the door sill height (Figure 5-96).
3.4 put steel wire rope, chopped wire rope:
In a clean spacious place to open the wire rope, wire rope inspection should be no dead bend, corrosion, broken wire situation. After the length of the wire rope is determined as described above, the wire rope is bound to a width of 15 mm at a distance of 5 mm from both ends of the chop, and then the wire rope is bound to the length Z in the funnel, ), And then cut off the wire rope with a chop.
3.5 hang wire rope, do rope head:
3.5.1 In the lanyard, should first open the wire rope, so that the free hanging in the shaft, the elimination of internal stress. Lanyard rope if the oil before the discovery, more slag, cotton yarn can be soaked with kerosene, wring dry after the wire rope to clean, prohibit the direct cleaning of steel wire rope to prevent the grease was washed off.
3.5.2 single-winding elevator rope to do first after the rope. Rewinding elevator rope as the rope through the rewinding round more difficult, so first to do after hanging rope rope. Or do the first side of the rope head, to be linked to a good rope and then do the other side of the rope.
3.5.3 will be cut after the wire rope, penetrate the cone, will cut the mouth banding lead wire demolition, loosen the strands, remove the core, with gasoline to clean the rope shares, according to the required size bend back, will bend good Rope stranded into the taper sleeve, the gate at the asbestos cloth or cement bag paper bandage, the next mouth with asbestos rope or cotton tight, the sequence shown in Figure 5-98.
3.5.4 rope head watering before the rope head taper sleeve should be cleaned inside the oil debris, watering should be taken before the slow heating method so that the temperature of the taper set to about 100 ℃, re-watering.
3.5.5 tungsten gold water temperature is appropriate to 350 ℃, tungsten to take indirect heating and melting, the temperature measured by thermocouple or when the paper into the cement bag immediately charred but not burning is appropriate. Water tungsten surface cleaning of impurities, water must be completed once, watering when the rope head, so that tungsten gold filling, irrigation before immersion can not be moved.
3.6 There are two ways to adjust the wire rope tension:
3.6.1 Measure and adjust the height of the rope head spring so that it is consistent, and its height error can not be greater than 2mm.
This method should be prior to the selection of all the springs, so that the same rope head device on the same height of the spring, rope head device shown in Figure 5-99.
3.6.2 With 100 ~ 150N (10 ~ 15kg) of spring species in the shaft 3/4 height (people standing on top of the car) to pull out the rope the same distance, the difference between the tension of not more than 5% , To meet the requirements of adjustment.
After the tension of the rope is adjusted, the double nuts on the rope head must be tightened, the pins should be well cut and the tightening of the rope head should be adjusted.
4 quality requirements
4.1 Warranty items:
Wire rope should be wiped clean, no dead bend, pine, rust, broken wire phenomenon.
Inspection methods: observation and inspection.
4.2 Basic Items:
The tension difference of each wire rope is less than 5%.
Test method: the car in the hoistway 2/3 height, with 50 ~ 100N (≈ 5 ~ 10kg) of the spring scales in the car to pull the same pull on the tension side of the rope tension, whichever is the average . And then the tension difference between each rope and the average value of comparison.
4.3 rope head tungsten gold pouring dense, plump, smooth and consistent. Once with the taper sleeve leveling, and can observe the bending of the rope to meet the requirements.
Inspection methods: observation and inspection.
5 protection of finished products
5.1 Wire rope, rope components, etc. In the transport, storage and installation process, no mechanical damage. Do not place in open air or in damp places.
5.2 The use of electrical welding should be careful not to damage the rope. Do not use wire rope for wire.
6 should pay attention to quality problems
6.1 If the wire rope is dirty, wipe it with cotton wool wiped with kerosene and wring it out. Do not clean it directly to prevent the grease from being washed off.
6.2 wire rope can not be used when welding, so as not to damage the rope strength.
6.3 for the rope head to be removed when the use of sawtooth saw blade or cut with a knife, not burned with fire.
6.4 Before installing the wire rope, make sure the wire rope hangs naturally in the hoistway to eliminate its internal stress.
6.5 rewinding elevator in the engine room or soundproof layer rope head board device, must be mounted on the handle structure, not directly on the floor.
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