JPH0755783B2 - Hydraulic elevator power unit - Google Patents

Description

TECHNICAL FIELD The present invention relates to an arrangement structure of a hydraulic power unit, a control panel and the like provided in a machine room of a hydraulic elevator.

[Prior Art] FIG. 4 shows a state in a machine room of a conventional hydraulic elevator. A hydraulic power unit 4 is arranged on a floor surface 2 of the machine room 1 via a support member 3, and a tank 5 for supplying hydraulic oil and a control panel 6 are arranged on the hydraulic power unit 4. The control panel 6 electrically performs speed control and operation control of the elevator car, and further incorporates a starting circuit for supplying or shutting off electric power to the motor 7 of the hydraulic power unit 4. There is. This starting circuit is composed of an electromagnetic contactor, an electromagnetic breaker, and the like that supply electric power.

A power supply inlet pipe 9 extending from the ceiling 8 is connected to the upper surface of the control panel 6. A cable or the like for supplying electric power is housed in the power supply lead-in pipe.

In addition, the opening 10 of the hydraulic power unit 4 has a downward cough.
11 is provided to prevent the hydraulic oil from leaking into the machine room 1 even if the hydraulic oil leaks from the tank 5.

[Problems to be Solved by the Invention] In the above-mentioned conventional technique, since the power supply lead-in pipe 9 is connected to the control panel 6 arranged on the hydraulic power unit 4, the power supply lead-in pipe 9 is provided from the ceiling 8. It was limited to what grew. This is because, if an attempt is made to connect a power supply inlet pipe extending from the floor surface 2 to the control panel 6, there is a drawback that the total length of the power supply inlet pipe becomes long and the space in the machine room is narrowed.

When the motor 7 in the hydraulic power unit 4 has a large capacity, it is necessary to use a large capacity starter circuit such as the electromagnetic breaker or the electromagnetic contactor. For that purpose, the size of the control panel 6 must be increased,
The conventional small control panel has a problem that the starting circuit cannot be stored.

The present invention is a power unit for a hydraulic elevator, which can be connected by arbitrarily pulling in a power supply inlet pipe from either the ceiling or the floor surface and using a conventional small control panel even when a large capacity motor is used. The purpose is to provide.

[Means for Solving the Problems] A power unit for a hydraulic elevator according to the present invention includes a hydraulic power unit, a tank for supplying hydraulic oil, and a control panel for electrically controlling speed and operation of the car. , A receiving box is provided on the side of this hydraulic power unit,
A connection part for connecting a power supply lead-in pipe for supplying the electric power is formed on an upper surface and a lower surface of the electric power receiving box, and a starter for supplying or cutting off the electric power to the motor of the hydraulic power unit is formed in the electric power receiving box. It has a built-in circuit.

[Operation] By providing a power receiving box on the side surface of the hydraulic power unit, and by forming the connection part of the power supply inlet pipe on the upper surface and the lower surface of the power receiving box, the power source inlet tube can be installed on the ceiling or floor according to the situation of the building of the customer. You can pull in and connect from either side.

Even if the motor has a large capacity, a starting circuit for the electromagnetic contactor, electromagnetic breaker, etc., which has a larger capacity as the motor has a larger capacity, is provided in the power receiving box that is separate from the control panel. It is possible to use the conventional small control panel as it is.

[Embodiment] An embodiment of the present invention will be described with reference to FIG. The same parts as those in FIG. 4 showing the conventional example are designated by the same reference numerals and the description thereof will be omitted.

A power receiving box 21 is provided on the side surface of the hydraulic power unit 4. On the upper surface 22 and the lower surface 23 of the power receiving box 21, connection portions for connecting the power supply lead-in pipe 9 are formed. In this embodiment, the power supply lead-in pipe 9 is connected to the connection portion of the lower surface 23. As a result, the customer's power source on the primary side can be taken in from the floor surface 2 of the machine room 1.

Further, in the power receiving box 21, an electromagnetic contactor and an electromagnetic breaker (not shown) are incorporated. As a result, the starting circuit composed of an electromagnetic contactor or the like can be separated from the control panel, and only the control and management circuit needs to be housed in the control panel 6. Therefore, there is no thick electric wire inside the control panel, and it is no longer necessary to store a starter circuit that requires a large installation space as the capacity increases. Can be used as is.

FIG. 2 shows a second embodiment of the present invention. The same parts as those in FIG. 4 are designated by the same reference numerals and the description thereof will be omitted. In this embodiment, the customer's power source has a structure in which it must be pulled in from the ceiling, and therefore the connection of the power supply lead-in pipe 9 is connected to the connection portion formed on the upper surface 22 of the power receiving box 21.

FIG. 3 shows a third embodiment of the present invention. The connection of the power supply lead-in pipe 9 is the same as in FIG. However, the power receiving box 21 is composed of an outer soundproof cover 24 and a sound absorbing material 25 stretched inside the soundproof cover 24. Since the starting circuit including the electromagnetic circuit breaker and the electromagnetic contactor 26 generates noise at the time of making (contacting) and shutting off, the power receiving box 21 is protected by the soundproof cover 24 and the sound absorbing material 25.
With this configuration, it is possible to reduce the sound emitted from the power receiving box 21 into the machine room 1.

[Effect of the Invention] According to the power unit of the hydraulic elevator of the present invention,
By connecting the power inlet pipe to the upper and lower surfaces of the power receiving box provided on the side of the hydraulic power unit, the power inlet pipe can be connected from the ceiling or floor depending on the customer's building where the machine room is installed. It becomes possible to do.

Further, by separating the starting circuit from the control panel and incorporating it into the external power receiving box, the conventional small control panel can be used as it is even when a large capacity motor is used as the motor of the hydraulic power unit.

[Brief description of drawings]

FIG. 1 is a side view of a power unit for a hydraulic elevator according to a first embodiment of the present invention, FIG. 2 is a side view of the same second embodiment, and FIG. FIG. 4 is a side view of the conventional hydraulic power unit in the opened state. 1 ... Machine room, 2 ... Floor surface, 3 ... Support member, 4 ... Hydraulic power unit, 5 ... Tank, 6 ... Control panel, 7 ... Motor, 8 ...
Ceiling, 9 ... Power supply inlet pipe, 10 ... Opening part, 11 ... Cough, 21 ... Power receiving box, 22 ... Top surface, 23 ... Bottom surface, 24 ... Soundproof cover, 25 ... Sound absorbing material, 26 ... Electromagnetic contactor. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A hydraulic elevator apparatus for operating a hydraulic power unit by electric power, driving a hydraulic jack by the hydraulic power unit, and raising and lowering a car by the hydraulic jack, a tank for supplying hydraulic oil onto the hydraulic power unit, and A connection for connecting a power supply inlet pipe for supplying the electric power to the upper surface and the lower surface of the power receiving box, which is provided with a control panel for electrically controlling the speed and operation of the car, and a power receiving box on the side surface of the hydraulic power unit. A power unit for a hydraulic elevator in which a starting circuit for supplying and shutting off the electric power to and from the motor of the hydraulic power unit is incorporated in the power receiving box.