Shaft equipment installation

1 scope

This technology is applicable to rated load 5000kg and below rated speed 2m/s and the following types of Chinese-made traction drive shaft of the elevator machinery and equipment installation works.

2 construction preparation

2.1 devices, materials requirements:

2.1.1 specifications, quantities should be consistent with the requirements of the various components without damage. Factory certificate.

2.1.2 oil shock absorber piston rod surface should be clean, no rust and dust cover are available.

2.1.3 the moving parts of the equipment and activities should be flexible, functional and reliable.

2.1.4 compensation ropes should be clean, no dead bent, no rust, no broken wires. Compensation chain should be put on shock-proof nylon according to the requirements.

2.1.5 bolts, bolts and screws of the connection of the other specifications, quality has to comply with the relevant requirements. And is equipped with a variety of specifications of metal gaskets.

2.2 the main tools:

Welding machines and welding tools, adjustable wrench, tube wrench, hammer, ruler, horizontal ruler, steel ruler, wire pendant.

2.3 operating conditions:

2.3.1 well within the requirement of section III of chapter II.

2.3.2 installed and adjusted according to the requirements of the Office, lock function must be safe and reliable.

3 operational processes

3.1 process:

Install buffer installed base → buffer → installed with a layer of steel wheels, hanging steel →

→ Install speed limiter rope tensioning device, loading speed rope → install the towline compensation device

3.2 installation the buffer chassis:

First check whether the buffer and buffer base facilities, and test Assembly. No problem to buffer base installed on the rail base. For elevator without a guide rail base, processing, increase the loading guide rail base should be used. Such as the use of concrete base, you must promise not to destroy the shaft end of the waterproof layer, avoiding leakage troubles and measures to be taken, and integrated the concrete base and the end of the shaft.

3.3 Installing the buffer:

3.3.1 Installing buffer coordinates and vertical deviation, standard deviation indicators taking into account.

Determine the position buffer Centre: in the car (or heavier) hit Center of the plate, move the buffer so that

Heart alignment to determine the location of the buffer, the offset must not exceed 20mm (Figure 5-86).

3.3.2 the use of spirit level measuring bumper top, its standard error is less than 4S/1000 (Figure 5-87). 3.3.3 where the car (or heavy) when buffer consists of two set of two buffers on the top should be in a horizontal plane, the difference should not be greater than 2mm (Figure 5-88).

3.3.4 measurement of oil shock absorber piston column verticality: the difference between the a and b shall not be greater than 1mm, measurements should be carried out in a difference of 90 ° in either direction (Figure 5-89).

3.3.5 in the buffer and buffer between the base pads on the bottom metal plate, adjusting the buffer. Gasket the gasket area shall not be less than the buffer area at the bottom of 1/2. Anchor bolts to be tightened after adjustment, requirements-spring washers or with double nut fastening. TURNBUCKLE to expose 3~5 buckles.

3.4 Installing under floor selector steel wheels, hanging Strip

3.4.1 fixed bracket with round steel in the car on the track, request steel wheel weight 450 ± 50mm lump from the pit below the ground (Figure 5-90).

3.4.2 steel under axial position adjustment method: car hanging from the center line of fixed steel pendant, adjust the steel under axial position, so that the maximum error is 2mm (5-91).

Radial position adjustments: line detection, steel-wheel on the edge should be in the same vertical line. Maximum deviation is less than 3mm (5-92).

3.4.3 slowly to put steel shafts in the engine room (pay attention to the Strip does not kink or bend), strip steel pulleys and steel straps on the car after the card, then put the Strip on the other side and the car fixed is fixed. Steel fixed should be fixed on the bottom rail of steel pulley bracket upward tilt, tilt bracket not more than 50mm (5-90).

3.5 installing the speed rope tensioning device and speed rope:

3.5.1 Installing speed limiting rope tensioning device at the bottom of distance from the pit at ground level can be determined according to table 5-13.

Tensioning device from the pit at the bottom horizontal distance between tables 5-13

From the pit size (mm) of 750 ± 50 550 ± 50 400 ± 50

3.5.2 according to table 5-12 and tensioner installation dimensions be superior. By car van lever Xia rope end Center to its corresponds to of Zhang tight round rope slot Center points a, hanging a vertical a, (see Figure 5-93) (room limited speed device to car van lever Shang rope end Center points of vertical degrees Board set, has Yu limited speed device installation Shi completed), while by limited speed device rope slot Center to Zhang tight round another end rope slot Center b hanging vertical b, adjustment Zhang tight round location, makes vertical a, with corresponds to Center points a, errors is less than 5mm, makes vertical b with corresponds to Center points b errors is less than 15mm, is Zhang tight device location determine.

3.5.3 direct speed speed rope hanging in the round and measured on the tension pulley, depending on the desired length of rope, rope end. Make rope end rope rope end with the Lord, then the rope end with car lever plate (Figure 5-93).

3.6 Installing the towline compensation device:

3.6.1 if the compensation to balance the chain, the installation should be natural in the shaft before hanging it up after installation. Its method, see 5-94.

3.6.2 If the elevator rope with compensation to compensation, except according to the construction plan, but also took note of the dancer's Guide and the compensation gap between wheel and rail 1~2mm (Figure 5-95).

4 quality requirements

4.1 project:

4.1.1 speed rope tensioners and steel belt tensioning device safety switches, compensation device guides upper and lower limit switch fixing must be reliable.

Inspection method: Visual check.

4.1.2 above safety switch and mounting position limit switches must be correctly in order to ensure a reliable switch in the following action, and make the elevator stops immediately;

4.1.2.1 and layer steel belt is broken loose causing the tensioning wheel drop is greater than 50mm;

4.1.2.2 speed rope tensioning devices, fall is greater than 50mm and (3) dancer in an abnormal position.

Inspection method: practical check and simulation.

4.1.3 safety switch, limit switch in its action, cannot result in its damage or contact Earth, short circuit, and so on.

Inspection method: simulation operation and inspection.

4.1.4 compensation ropes (chains), speed rope and steel band in running it is strictly prohibited to collide with any parts or friction.

4.2 Basic project:

Speed rope tensioner, belt tensioning devices shall have sufficient weight to ensure wire rope or steel straightening to prevent misoperation. Speed limit rope weight tensioning device should not be less than 30kg. Weight of the steel belt tensioning device and set as steel, steel with straight (not too heavy, in case of damaged steel band).

4.3 allowable deviation:

Bumper installation tolerances are shown in table 5-14.

Bumper installation tolerances in table 5-14

Allowable deviation or size requirements

(mm)

Center distance of 1 buffer car (or heavy) touch the center of the plate less than 20 hanging wire, standard checking

Top 22 buffer (when complete) should be in the same

Less than 2 feet above the water level check

3 top level of 4S/1000 feet of buffer check

4 shock absorber piston 1 vertical column (testing the difference between points a and b) hanging, standard checking

Note: 1.

2. s as shown in Figure 5-87.

A and b as shown in Figure 5-89.

5 finished product protection

5.1 to prevent debris from falling into the shaft, so as not to hurt the installed parts.

5.2 in the case compensated devices wheels and hydraulic buffers have reliable dust control measures, so as not to affect its function.

6 quality problems to be noticed

6.1 playing bumper base with concrete composition and the quality of the cement should comply with the design requirements.

6.2 the rope for velocity limiter switch, steel tensioning device belt switch, reliable compensator for positioning the function of the switch.

6.3 speed rope to no broken wires, rust, dirt or bending.

6.4 cannot fold track and corrosion of steel.

6.5 compensation links must not have welding the phenomenon. Compensation rope no broken wires, corrosion and so on.

6.6 oil buffer before use be sure to refuel as required, to ensure that they are reliable.