Engine room machinery and equipment installation

1 scope

This technology is applicable to rated load 5000kg and below rated speed 3M/s and the following types of Chinese-made machine room traction lifts machinery and equipment installation works.

2 construction preparation

2.1 devices, materials requirements:

2.1.1 the engine room machinery and equipment specifications, quantities must conform to the drawings, and intact.

2.1.2 load-bearing beams and various sections of the specifications and dimensions must conform to the design requirements.

2.1.3 If the host, generator pedestal plate production, plate thickness should not be less than 20mm. Speed limiter, steel round base plate thickness should not be less than 12mm. And all the steel surface is flat and smooth.

2.1.4 welded low carbon steel welding electrodes, welding electrode factory certificate.

Installation with machine screws, bolts, cement and other specifications, the marking should comply with the design requirements.

2.2 the main tools:

Chain, wire rope, level, wire pendant, plate, box feet, electric and gas welding tools, welding machines, wrench, hammer, crowbar, hacksaw, hammer, feeler.

2.3 operating conditions:

2.3.1 engine room doors and Windows to complete, clean the ground, lighting complies with the relevant requirements, and there is sufficient working space.

2.3.2 room bearing capacity of the structure must conform to the design requirements, location, size of holes on the ground must conform to the drawings and specifications.

2.3.3 hook should comply with the design requirements for hoisting machines.

2.3.4 if when the machine is installed in the ground, the ground must be smooth, finishing.

3 operational processes

3.1 process:

→ Install the tractor and guide wheel

→ Install the power generation unit

→ Install speed limiter

→ Steel pulley

3.2 Installing load-bearing beams:

3.2.1 steel girders before installation to brush paint (brush again before the handover).

3.2.2 determine the steel beams of installation location.

3.2.3 installed machine beam, both ends must be placed on the shaft bearing wall (or load-bearing girders), length and wall (or beam) skins together. Such as machine beam long enough, its length should be at least beyond the wall (or beam) centerline of 2cm above, and should not be less than 7.5cm. The machine beam and load-bearing walls (or beam) δ ≥ 16mm pad, an area greater than the contact surface of the plate.

According to different criteria, select one of the following installation methods to install:

3.2.3.1 steel beams in the engine room floor: on top of the shaft high to meet the national standard of the elevator manufacture and installation conditions of safety code requirements, beams should be comfortable with floor and beam and floor coverings one (Figure 5-68).

3.2.3.2 steel beams in the engine room on the floor: review room height, when steel girders to keep top floor height does not meet specification requirements, beams should be mounted on the floor above. Installation method is as follows: first cabin and Center for the heavier line and then follow the installation dimensions is given by p and Q determined girder installation location (Figure 5-69).

Installation method of steel girders on the concrete pad:

A if the room height is high, conditions permitting, and room floors as bearing floor, you should try to take such an approach. Steel beams mounted on a concrete stage, must according to the design requirements of concrete reinforcement and reinforcement by anchor bolt and connected to the floor. Concrete platform above with δ ≥ 16mm plate (Figure 5-70).

B for some reason, there is difficulty in concrete, with steel frame and steel beam methods can be taken (Figure 5-71).

As a result of section height and cushion height does not adapt or cushion height when it is not appropriate to introduce steel, can be made on site erection of metal frame beams (Figure 5-72). Based on pad height using steel and plate sizes are shown in table 5-11.

C installation along the ground: when the room height is insufficient, and top shaft height is allowed when the bottom part into the guide wheel shaft, guided a cross the size of holes in wheel parts (for the installation of guide wheel). Steel beams along the ground when installed, first using expansion bolts to bearing beams of a horn as required under which fixed-location bearing walls on the floor and another placed holes in the bearing wall on the corresponding position.

Steel beams after leveling, the load-bearing beams and Horn welding with a welding in prison. One end of the load-bearing beams within the walls using concrete real smooth, with one end on the ground bare concrete piers, be sealed (Figure 5-73).

3.3 Installing the machine Base:

If elevator factory does not provide complete sets of traction machine base, you need to make.

3.3.1 concrete base:

Making concrete pedestal by the civil cooperation, based on the design requirements. If there are no design requirements, in accordance with the following requirements: concrete base of cement grade is not smaller than No. 225, the proportion of cement, sand, bean 90%with. Base equipped with the corresponding specifications of steel. The thickness of the concrete base to 250~300mm is appropriate, ask founder smooth travel, should be greater than 40mm. The anchor bolts on the base, can be reserved on the base holes until the machine after installing the second Grouting fixing, or according to the tractor mounting hole size mock, model on a stick will bolt directly to the concrete base, but sample sizes must be accurate, the bolt must be vertical (installation surface of the machine base model).

3.3.2 the production plate Base:

Request the plate thickness is not less than 20mm, and the surface must be smooth, steel plate and bolt welding methods (anchor bolts to be prepared) (Figure 5-74).

3.4 installation guide wheel tractors with:

3.4.1 the single spiral traction machine, determine the position of the guiding wheel:

Along the Center above the engine room and the car pulled away from the center of a horizontal line. In this thread on the a and b two points on the model of the car Center and the Center hanging two perpendicular respectively. And another under a ' hanging plumb line (AA ' distance to sheave diameters). To move the machine in place and so Plumb-AR and a ' Q and sheave grooves on both sides c points and tangent to the point of c′ (as shown in Figure 5-75), the tractor position and fixed. Will oriented round in place, makes vertical BP and oriented round outside rope slot Center d points phase cut, and keep not variable, while in oriented round another side Center points d (phase cut at) hanging a vertical d ' s, turned oriented round, makes this vertical vertical in on heavy Center and the car van center line Shang, is oriented round location determine, and be fixed (Figure 5-75).

3.4.2 rewind guide wheel-type tractors and determine the installation location of:

3.4.2.1 first determine the tension of guide wheel sheave and the center point. According to the car or heavy grooves, and into the car with rope in Figure 5-76 bad 2, 4, 6, 8, 10, sheave role Center is the location in the Centre of the five slots, the 6th channel ' a, the center point. Steering wheel Center points are in 1, 3, 5, 7, 9-slot Center location, the center point of the 5th slot b '.

3.4.2.2 determine the installation location of:

A, if oriented round and the tractor has by manufacturing manufacturers assembled in same base Shang Shi, determine installation location is convenient, as long as mobile base makes drag introduction round role Center points a, ' hanging Xia of vertical alignment car van (or car round) Center points a,, oriented round role Center points b ' hanging Xia of vertical alignment on heavy (or on heavy round) Center points b, this items work that has completed. And then fixed the base (Note: this elevator factory, car and the center distance has been completely determined, put the line should be checked against the drawing size).

B If the tractor and guide wheel installation packages on sites you want, traction machine with guide wheel installation needs at the same time (such as are very difficult to locate, respectively). Method following: Dang tractor and the oriented round upper Hou, makes by drag introduction round role Center points a, ' hanging Xia of vertical alignment car van (or bridge round) Center points a,, makes by oriented round role Center points b ' hanging Xia of vertical alignment on heavy (or on heavy round) Center points b, and always keep not variable, then level turned tractor and the oriented round, makes two a round parallel, and apart 1/2S (Figure 5-77), and for fixed.

C If the sheave and guide wheel width and the dimensions are exactly the same, this job can also be done with two side extensions (Figure 5-78).

3.5 installing the generator:

3.5.1 according to determine the unit location.

3.5.2 stable machine: installation drawings on the ground shock absorbing rubber pad between the base and generator (Figure 5-79).

3.5.3 generator group after leveling, connected to a generator and the base bolt kapyong pads, trampoline and double nut and tighten.

3.5.4 install baffles or plates to prevent horizontal movement (Figure 5-80).

3.6 install speed limiter:

3.6.1 reserve holes is not appropriate, tick floors should pay attention, your hole is not too large, prevent damage to the floor strength.

3.6.2 in the thickness not less than 12mm steel plate base (Figure 5-81). Speed limiter and connected to the base with screws.

3.6.3 according to installation figure by to coordinates location, will limited speed device in place, by limited speed round rope slot Center to car van lever Shang rope end Center hanging a vertical, while by limited speed round another side rope slot Center directly to Zhang tight round corresponding of rope slot Center hanging a vertical, adjustment limited speed device location, makes above two on Center in corresponding of vertical Shang, location can determine. And then bolted on the floor corresponding location in the engine room, speed limiter in place, another test, speed limiter and level to meet the requirements of the base and expansion bolts.

Floor thickness is less than 12cm, plus a steel plate in the floor, and the base using the screw bolt fixing.

If speed limit wheel vertical error d>0.5mm, speed limiter and the base and gasket between the bottom surface adjustments.

3.7 installing steel pulley:

3.7.1 in the thickness not less than 12mm steel plate or steel shapes made with round base. Steel wheel in the corresponding position in the base install screws and expansion bolt holes.

Screwed steel wheels on the base.

3.7.2 according to the installation position steel belt pulley in place, while the steel wheel center line measurement point a, tensioner car fixed center point b, point c, three points are on a vertical line. Steel center point on the other side of the pulley d and tension pulley center point e on a plumb, adjust the steel belt wheel position deviations within the requirements of (Figure 5-82).

3.7.3 according to place, ground expansion bolts in the engine room. Then steel pulley again according to the above requirements

Adjusted and fixed with bolts.

4 quality requirements

4.1 project:

4.1.1 machine beam in the shaft ends must be load-bearing beam or wall. Load-bearing steel beam embedded length and beam or wall skins together, pad d ≥ 16mm plate, such as machine beam length is insufficient, the embedded length should be at least beyond the beam or wall center line in 2cm above, and at least 7.5cm (Figure 5-83).

Inspection method: observation of checks or check the installation records.

4.1.2 the car empty, sheave of vertical deviation must be less than or equal to 0.5mm steering wheel end deviation of parallelism of sheave face no greater than 1mm.

Inspection method: hanging, standard inspection.

4.1.3 Governor sheave, steel wheels, steering-wheel must be installed firmly, flexible rotation, the perpendicularity deviation greater than 0.5mm is strictly prohibited.

Inspection method: observation and hanging wire, standard checks.

4.2 Basic project:

4.2.1 tractors, generators, base level of error should be less than 1/1000.

4.2.2 device when installed directly on the load-bearing beams, to measure a good screw hole locations, drill holes, diameter not greater than bolt diameter 1mm, there shall be no damage Steel Stud. I must be installed on the pad (Figure 5-84).

4.2.3 closely fit brake brake brake wheel face; loose time gaps evenly, and less than 0.7mm.

Inspection method: observation and with a feeler gauge to check.

4.2.4 through sheave (or guiding wheels) centerline tangency c vertical line and through the car Center deflection see tables 5-12 and 5-85.

Through sheave centerline tangency point vertical and by car center vertical tolerance table 5-12

Above requirements 2m/s 1~1.75m/s 1M/s

Before and after the deviation

About deviation ± 2

± 1 ± 3

± 2 ± 4

± 2

Inspection method: hanging, standard inspection.

4.2.5 speed limit in car safety clamp lever side wheel Groove Center, cabin trolley rope end Center, Center of tensioner pulley Groove on the same vertical line, the deviation shall not be more than 5mm, speed round the other side grooves centers and tensioning wheel grooves on the Center should be in the same vertical line on the other side, the maximum deviation must not exceed 15mm.

4.2.6 steel wheels, the car fixed point, tension pulley position error as shown in Figure 5-82.

5 finished product protection

5.1 the engine room machinery and equipment in the transport, storage and installation process, the damp, the collision is strictly prohibited.

5.2 engine room doors and Windows to the most modern, strong, after work room is to be locked. Not the person concerned does not enter the room. 6 quality problems to be noticed

6.1-supported steel beam at both ends must be installed with the design and specifications.

6.2 where to break into the concrete components, to be inspected by the person concerned before the concrete, when you meet the requirements, check verification signature before an operation.

6.3 all parts join screw holes using the appropriate size drill hole, gas hole is strictly prohibited.

6.4 tractor factory has been inspected, in principle not allowed to disassemble, if there are special circumstances apart to repair, adjust, and by technology in conjunction with experienced fitters in accordance with the relevant provisions of the operation.

6.5 speed limiter setting value is adjusted by the manufacturers, construction can not be adjusted. If any parts are damaged, adjustment should be sent to the factory inspection.