JPH0432478A - Installation method for elevator - Google Patents

Abstract

PURPOSE:To make installation work in safety and with high precision by assembling machinery parts for a machine room to a machine beam on the ground, lifting the machine beam to temporarily assemble a counter weight and a cage to the beam, laying an elevator rope over the beam, and lifting and installing the beam to the machine room on the top of an elevator shaft. CONSTITUTION:A winder 2, a main sheave 3, a secondary sheave 4, attachments such as a governor device, a position detecting device, etc. are assembled to the upper face of a machine beam 1 on the ground. Then the machine beam 1 is raised, and a counter weight 6 and a cage 7 are hung through connecting fittings 8, 9 below the machine beam 1. After a wire rope 10 is laid from a temporary wire drum 11 over sheaves 3, 4, the machine beam 1 is lifted by a tower crane for construction work to a machine room on the top of an elevator shaft, and then installed in a specified position.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to an elevator installation method.

(Prior Art) A method of installing a conventional crane elevator in a hoistway will be described with reference to FIG.

Elevator installation is carried out using the following steps and construction methods.

1. Confirmation of reference position field for elevator installation.

2. Setting reference marks and reference lines for installing components of various devices.

3-Assembling work scaffolding in the hoistway.

4-Installation of the guide rail for the cage and counterweight.

5. Installation of entrance/exit devices at landings on each floor.

6- Install the hoisting device, control panel, and other supplies in the machine room above the hoistway. 7. Assemble the counterweight, car frame, and car at the bottom of the hoistway.

8. Lift the car to the top floor using a winch specially designed for elevator assembly.

9. Attach the wire rope between the basket and the counterweight via the hoisting device, and secure both ends.

10. Comprehensive wiring and various switch installations in the machine room and hoistway.

116 trial run.

The elevator is installed through the steps described above.

(Problems to be Solved by the Invention) In such conventional elevator installation methods, various instruments and devices installed on the machine beam in the machine room, as well as the car and counterweight suspended below, are individually hoisted. It is installed.

In particular, since the car assembled at the bottom of the hoistway is roving, installing the elevator requires lifting it to the top of the hoistway using a special large winch (2 to 4 tons) and securing one end of the wire lobe to the car. there were. However, this work is dangerous and high-altitude work performed at the top of the hoistway.

In this way, various supplies and devices are assembled in their respective predetermined positions.
Installation was time-consuming and, as mentioned above, dangerous, and extremely inefficient.

Therefore, the present invention solves these problems and safely,
The purpose is to facilitate easy and accurate assembly and installation work.

For this reason, the present invention assembles and installs these various items in advance at a factory or on the ground at the installation site, assembles them together on a machine beam, and wraps the elevator's main rope (wire robe) around it. Instead of a large winch dedicated to installing the elevator, a tower crane for construction work is used to lift and install it above the hoistway.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above object, the present invention assembles a hoist, its control device, and other accessory devices on the top surface of a machine beam, lifts it with a tower crane for construction, and attaches a car to the machine beam. A counterweight is temporarily attached to the lower surface of the machine beam via a connector, and the roving is then lifted up and installed in the machine room above the hoistway by the tower crane.

(Function) With this process, the machine room hoist, car and counterweight are assembled to the machine beam, and the roving is constructed on the ground, eliminating the need for high-altitude work.
Moreover, assembly becomes easier, and assembly accuracy and work efficiency are improved.

(Example) Figures 1 and 2 show how to install an elevator according to the present invention.
This will be explained using figures.

On the ground, the hoisting machine 2, the main sheave 3, the secondary sheave 4, and the accessory devices 5 such as the governor device and the position detection device are assembled on the upper surface of the machine beam 1 (step (6)) and the machine beam is lifted together.

Furthermore, there is a separate assembly process (7)) in which the counterweight 6 and the car 7 are suspended below the machine beam 1 via the connectors 8 and 9.Then, the wire lobe 10 is suspended from the wire drum 11 which is temporarily installed on the car. Wrap it around sheave 3.4.

The machine beam 1 to which the machine room supplies, counterweight, car, and elevator lobe are integrally attached is lifted into the machine room above the hoistway by a construction tower crane (step (10)).

According to this process, steps 6 to 9 of the conventional construction method are shown in Figure 2.
(In the present invention, (6) to (10)) are performed on the ground.

Other embodiments of the present invention will be shown below as second, third, and fourth examples.

[Second example] This will be explained using the example shown in FIG.

A counterweight 6 and a cage 7 are suspended from the lower surface of the machine beam 1 by respective coupling devices 8 and 9. A wire 0-110 is fixed to a wire drum 11 temporarily installed on the upper surface of a machine beam 1, and the other end is fixed to a counterweight 6 via a hoist 2, a main sheave 3, and a secondary sheave 4. The hoisting device unit connected and structured as described above is lifted, temporarily centered, and installed on a support beam in a machine room using a tower crane using a lifting lobe 12.

The above completes the installation of the hoisting device, the lifting of the counterweight 6 and the car 7, and the low heave of the wire lobe 12 between the hoist 2 and the counterweight 6.

[Third example]... In the case shown in Fig. 4, machine beam 1
Mechanical supplies on top, machine beam 1, balance plate 6 on the bottom
, the car 7 is only temporarily attached via the connector.

[Fourth example]... In the case shown in Fig. 5, the lower side of the machine beam simply moves down the counterweight.

In this way, if you try to assemble as many supplies, equipment, etc. on the upper and lower surfaces of the machine beam on the ground as possible, you can
Since the device can be assembled in advance at a factory, it can be assembled with higher accuracy than if it were assembled at the installation site.

〔Effect of the invention〕

According to the present invention, equipment for the elevator machine room and hoistway can be preassembled in a factory, and a construction tower crane can be used during installation to improve dimensional accuracy between equipment, reduce man-hours, and shorten the time. Moreover, the installation can be carried out economically.

Additionally, the safety of installation work will be improved by eliminating or reducing high-place work such as assembly and installation above the hoistway.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing a machine beam lifting state according to the present invention, Fig. 2 is a diagram showing a comparative explanation of the installation process according to the present invention and a conventional example, and Fig. 3 to Fig. 5 are respective other embodiments of the present invention. FIG. 2 is an explanatory diagram of the state when the machine beam is lifted by the machine beam. 1-... Machine beam 2-... Hoisting machine 7°"° Cart 6-... Counterweight 8.9-...
Connector

Claims (1)

[Claims] Of the various assembly and installation processes carried out at the final predetermined installation position at the installation site, installation of machine room supplies and equipment,
Each process, such as assembling, lifting, and wiring the balance weight/car, is carried out in advance by assembling the machine room supplies on the machine beam on the ground, then lifting the machine beam, and then lifting the balance weight and wiring.
An elevator installation method characterized by the process of temporarily assembling a car to a machine beam via a coupling device, wrapping the elevator rope around it, hoisting it to a machine room above the hoistway, and installing it at a predetermined position. .