CN101830388A - Installation method of counter-weight frame of elevator - Google Patents

Abstract

The invention discloses an installation method of a counter-weight frame of an elevator, comprising the following steps of: arranging a lifting mechanism on an overhauling lifting hook of an elevator machine room, and drilling a through hole in a top-layer floorslab of a hoistway; hanging a counter-weight lifting steel wire used for lifting the counter-weight frame on the lifting mechanism, and placing through the through hole; completing the installation of a dragging steel wire near a top-layer door by the counter-weight frame; controlling the lifting mechanism to lift the counter-weight frame to complete the installation and the fixation of a counter-weight block positioned on the counter-weight frame and the connection and the fixation of the dragging steel wire positioned at a car side; controlling the lifting mechanism to lift the counter-weight frame into the hoistway, and then releasing the lifting mechanism so that the counter-weight frame moves under the action of gravity in the hoistway till the counter-weight frame moves in position; and removing the fixation of the counter-weight lifting steel wire on the lifting mechanism after the dragging steel wire is completely tensed under stress. The invention can realize the counter-weight frame top-layer installation without an auxiliary operation platform or a scaffold, has convenient construction, safety and reliability, effectively reduces the operation cost, and prevents safety risks.

Description

A method for installing an elevator counterweight frame

technical field

The invention relates to the field of elevator installation engineering, in particular to an installation method of an elevator counterweight frame.

Background technique

There are two main ways to install elevators, one is the traditional and widely used installation method using scaffolding, and the other is the installation method without scaffolding that has gradually begun to be used. When involving the installation of the elevator counterweight frame, due to the need to utilize the car frame as the work platform to carry out the installation of shaft components such as guide rails, the shaft components such as guide rails must be installed step by step from bottom to top. Therefore, the car frame needs to be installed on the first floor as a working platform, and the counterweight frame needs to be installed on the top floor into the hoistway, and the counterweight frame is usually located on the side of the hoistway away from the car door. The current common practice is to set up a suspended temporary simple work platform or a two-layer suspended scaffold at the top of the hoistway, and use the platform or scaffold to assist the counterweight frame into the hoistway to complete its position. After installation, it needs to be dismantled. Simple platforms or scaffolding, this method not only increases the cost of materials but also increases the workload, and there are certain safety hazards.

Contents of the invention

The object of the present invention is to provide a safe and efficient method for installing an elevator counterweight frame that is simple and convenient, does not require a work platform to be built on the top floor.

The technical solution of the present invention is: a method for installing the counterweight frame of an elevator, which includes the following steps: a. Install a hoisting mechanism on the maintenance hook of the elevator machine room, and drill a through hole on the top floor of the hoistway. Put the counterweight hoisting wire rope inside, one end of the counterweight hoisting wire rope is installed on the hoisting mechanism, the other end enters the hoistway through the through hole and is placed at the top floor door, and the counterweight frame moves to the top floor door; b. A traction wire rope is set on the traction sheave of the main engine, and one end of the traction wire rope is connected to the counterweight frame through the counterweight traction hole of the machine room, and the other end is lowered to the top of the car through the traction hole of the car; c. Fix the end of the counterweight hoisting wire rope at the top floor door on the counterweight frame; d, control the hoisting mechanism so that the counterweight hoisting wire rope lifts the counterweight frame until the counterweight frame is in an upright state at the top floor door and Its top enters the hoistway; e, complete the connection and fixation of the traction wire rope on the top of the car; f, complete the installation and fixing of the counterweight on the counterweight frame; g, control the hoisting mechanism so that the counterweight hoisting wire rope will lift the counterweight frame After lifting and entering the hoistway, release the counterweight hoisting wire rope, so that the counterweight frame moves in the hoistway under the action of gravity until it is in place; Fixed on the top, so that it hangs freely on the counterweight frame.

Set a through hole on the top floor of the hoistway, pass the counterweight hoisting wire rope to lift the counterweight frame at the top floor door, and complete the setting of the counterweight block. After the traction steel wire rope is respectively fixed on the counterweight frame and the car, pass through Control the counterweight hoisting wire rope to move the counterweight frame into the hoistway, and move it into place by its own gravity. This kind of setting method can save the step of setting up scaffolding or working platform in the hoistway, and the construction is more convenient. In addition, during the construction process, the counterweight frame is always pulled by the counterweight hoisting wire rope, and only need to adjust the counterweight hoisting wire rope when it is in place. It can be realized by gravity, and the whole process is safe, reliable, efficient and convenient.

In step b, the step of fixing the traction wire rope on the side of the car at the traction hole of the car through a wire rope clamp is also included. Prevent the car side traction wire rope from falling completely.

In step b, it also includes the step of hanging the traction wire rope on the side of the car on the hanging bracket on the side of the top floor door. Avoid the traction wire rope on the car side from affecting the installation of other components.

In step g, it also includes the step of removing the traction wire rope attached to the anchor bracket when the counterweight frame moves to half the depth of the hoistway, disengaging the fixing of the wire rope clip, and setting the top floor door protection plate. Protect against accidental fall hazards.

The vertical projection of the through hole is located in the middle of the elevator hall door, and is 300-400mm away from the inner front wall of the hoistway. The through hole is close to the front wall of the hoistway, and the hoisting position of the counterweight frame is close to the landing door, which is convenient for construction.

The hoisting mechanism is a manual hoist, and the tools are easy to obtain and easy to operate.

The invention has the advantages that the counterweight frame can be installed on the top floor without an auxiliary operation platform or scaffolding, the construction is convenient, safe and reliable, and the operation cost is effectively reduced and safety risks are avoided.

Description of drawings

Accompanying drawing 1 is the schematic diagram that counterweight hoisting steel wire rope is arranged in the embodiment of the present invention;

Accompanying drawing 2 is the schematic diagram of traction wire rope setting in the embodiment of the present invention;

Accompanying drawing 3 is a schematic diagram of the car side traction wire rope anchoring in the embodiment of the present invention;

Accompanying drawing 4 is the schematic diagram of counterweight hoisting wire rope connection counterweight frame in the embodiment of the present invention;

Accompanying drawing 5 is the schematic diagram of hoisting of the counterweight frame in the embodiment of the present invention;

Accompanying drawing 6 is the schematic diagram of installing car traction wire rope in the embodiment of the present invention;

Accompanying drawing 7 is the schematic diagram of installing counterweight in the embodiment of the present invention;

Accompanying drawing 8 is a schematic diagram of the counterweight frame entering the hoistway in the embodiment of the present invention;

Accompanying drawing 9 is the schematic diagram of counterweight frame in the embodiment of the present invention;

1. Counterweight hoisting wire rope, 2. Counterweight frame, 3. Traction wire rope, 4. Wire rope clamp, 5. Marking, 6. Anchor bracket, 7. Counterweight block, 8. Counterweight fixing plate, 9. Counterweight Anti-collision wall wheel, 10, landing door guard, 11, top landing door, 12, top floor, 13, through hole, 14, maintenance hook, 15, main engine, 16, manual hoist, 17, counterweight traction hole , 18, car traction hole, 19, car.

Detailed ways

Example:

A method for installing an elevator counterweight frame, the steps of which are shown in Figures 1-9:

Referring to Fig. 1, the manual hoist 16 is hung on the maintenance hook 14 of the elevator machine room, and a through hole 13 of φ 18 mm is drilled on the ground floor of the elevator machine room, that is, the top floor 12 of the shaft, and the vertical projection of the through hole 13 falls In the middle of the entrance of the elevator hall, in the well about 300-400mm from the front wall of the well. Put down a counterweight hoisting steel wire rope 1 from through hole 13, one end is hung on the suspension hook of manual hoist 16, and the other end passes top floor slab 12 and is put to top floor door 11 outsides. The counterweight frame 2 is moved from the outer side of the top floor to the accessory position of the landing door 11;

Refer to Figure 2, install the traction wire rope 3: put down the traction wire rope 3 with a taper sleeve installed on one side from the counterweight traction hole 17 in the machine room, guide it from the top floor shaft to the outside of the top floor door 11, and install it on the counterweight frame 2. On the rope head plate, it is necessary to calculate the position and length of the traction wire rope 3 according to the size of the hoistway in advance, and then mark the position 5 with insulating tape. The other side of the traction wire rope 3 is completely lowered from the traction hole 18 of the machine room car to the top position of the car 19, hung on the traction sheave of the main engine 15 according to the normal arrangement, and the traction wire rope 3 is temporarily fixed by the machine room wire rope clamp 4. Clamp and fix to prevent the car side traction wire rope from falling completely. So repeated, all the traction wire ropes 3 are hung up and completed.

Referring to Fig. 3, after each traction wire rope 3 is laid down and hanged, it is temporarily anchored on the anchor bracket 6 to prevent the installation of other wire ropes from being hindered until all the traction wire ropes are laid.

Referring to Fig. 4, put down the counterweight hoisting wire rope 1 of the machine room to the top floor door 11 side, pass through the counterweight frame 2 and bind it on the counterweight frame 2, and prepare to lift the counterweight frame 2.

Referring to Fig. 5, by controlling the wire rope clips 4 in the machine room, the traction wire ropes 3 are put down one by one, so that the position mark 5 stays at the designated position as required. Use manual hoist 16 again to lift counterweight frame 2 and make it gradually enter in the hoistway until its bottom stops at the position of about 400～600mm of top floor door 11.

Referring to Fig. 6, the connection of the traction wire rope 3 on the car side and the car 19 is completed.

Referring to Fig. 7, outside the top floor door 11, add an appropriate amount of counterweight 7 to the counterweight frame 2, press the counterweight 7 with the counterweight fixed pressure plate 8 after adding, and install it on the counterweight fixed pressure plate 8 Counterweight anti-collision wall wheel 9.

Referring to Figure 8, use the manual hoist 16 to lift the counterweight frame 2. After the counterweight frame 2 has completely entered the hoistway, release the manual hoist 16, and the counterweight frame 2 will move to the right under the action of gravity to about the depth of the hoistway. During half of the stroke, remove all the traction wire ropes 3 temporarily anchored on the anchor bracket 6, and then remove the wire rope clip 4 in the machine room, and restore the top floor door guard 10; continue to release the manual hoist 16 to move the counterweight frame 2 to the right until The counterweight frame 2 is in place.

As shown in Figure 9, after the traction wire rope is fully stressed, remove the counterweight hoisting wire rope 1 on the hook of the machine room’s manual hoist, and lower the counterweight hoisting wire rope 1 from the φ18mm through hole in the machine room into the hoistway, allowing it to hang freely on the opposite side. Re-rack. At this point, the installation of the counterweight frame 2 is completed.

The above detailed description is a specific description of a feasible embodiment of the present invention. This embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or change that does not depart from the present invention should be included in the scope of this case. within the scope of the patent.

Claims (6)

1. A method for installing an elevator counterweight frame, characterized in that: it may further comprise the steps: a. Install a hoisting mechanism on the maintenance hook of the elevator machine room, drill a through hole on the top floor of the hoistway, and put a counterweight hoisting wire rope into the through hole. One end of the counterweight hoisting wire rope is installed on the hoisting mechanism, and the other end is Enter the hoistway through the through hole and place it at the top landing door, and the counterweight frame moves to the top landing door; b. Set a traction wire rope on the traction sheave of the main machine, one end of the traction wire rope is connected to the counterweight frame through the counterweight traction hole of the machine room, and the other end is lowered to the top of the car through the traction hole of the car; c. Fix the end of the counterweight hoisting wire rope at the top floor door to the counterweight frame; d. Control the hoisting mechanism so that the counterweight hoisting wire rope lifts the counterweight frame until the counterweight frame is in an upright state at the top floor door and its top enters the hoistway; e. Complete the connection and fixation of the traction wire rope on the top of the car; f. Complete the installation and fixing of the counterweight on the counterweight frame; g. Control the hoisting mechanism so that the counterweight hoisting wire rope lifts the counterweight frame and enters the hoistway, then releases the counterweight hoisting wire rope to make the counterweight frame move in the hoistway under the action of gravity until it is in place; h. After the traction wire rope is fully stressed and tensioned, release the fixing of the counterweight hoisting wire rope on the hoisting mechanism so that it can hang freely on the counterweight frame. 2. A method for installing an elevator counterweight frame according to claim 1, characterized in that: in step b, further comprising fixing the traction wire rope on the side of the car to the traction wire rope of the car through wire rope clamps. Step at the lead hole. 3. The method for installing the counterweight frame of an elevator according to claim 2, characterized in that: in step b, it also includes an anchoring bracket for anchoring the traction wire rope on the car side to the side of the top floor door steps above. 4. The method for installing the counterweight frame of an elevator according to claim 3, characterized in that: in step g, it also includes removing the anchorage frame attached to the anchorage bracket when the counterweight frame moves to half the depth of the hoistway. Steps for pulling the wire rope and unfastening the wire rope clamp to set the top floor door guard. 5. A method for installing an elevator counterweight frame according to claim 1, 2, 3 or 4, wherein the vertical projection of the through hole is located in the middle of the elevator hall door, and is 300- 400mm. 6. The method for installing an elevator counterweight frame according to claim 1, 2, 3 or 4, wherein the hoisting mechanism is a manual hoist.

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