JPH0597355A - Power unit for hydraulic elevator - Google Patents

Abstract

PURPOSE:To obtain a power unit for elevator in which a pump device installed in an oil tank can be supported on the side surface of the oil tank, during transport. CONSTITUTION:A supporting device 10 is installed in the vicinity of a pump device 3 suspended in an oil tank 1. The movable supporting body 8 of the supporting device is brought into contact with the inner surface of the oil tank during transport, and the pump device is temporarily fixed on the oil tank. Further, since a nut, etc., are not demounted during the operation of the tightening tool 9 of the supporting device, the falling trouble into a working oil is prevented. Accordingly, the swing dispacement of the pump device for the oil tank during transport is suppressed, and the generation of the trouble in transport can be prevented beforehand. Further, the tentative fixation and dismantlement work of the pump device by the supporting device can be carried out efficiently.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power unit for a hydraulic elevator in which a pump device is immersed in hydraulic oil.

[0002]

2. Description of the Related Art FIG. 5 and FIG.
It is a figure which shows the conventional hydraulic elevator power unit shown by 75986 publication. In the figure, 1 is an oil tank in which hydraulic oil 2 is housed, 3 is a hydraulic pump connected to an electric motor, a pump device whose main part is a filter attached to the hydraulic pump, 4 is a suspension member, and an inner surface of the oil tank 1 One end is fastened to the fixed metal fitting 5 and hangs down, and the other end is pump device 3
It is constituted by the suspension rod 6 fastened to the.

The conventional hydraulic elevator power unit is constructed as described above, and the pump device 3 is suspended and placed in the hydraulic oil 2 so as to prevent vibration from being transmitted to the side surface of the oil tank 1 and the oil tank. 1 The bottom is arranged so that no load acts on it. When the pump device 3 is energized, the hydraulic oil 2 is sucked in and the car is lifted via the hydraulic jack. In addition, the hydraulic oil 2 of the hydraulic jack is returned to the oil tank 1 through the control valve to lower the car.

[0004]

In the conventional hydraulic elevator power unit as described above, since the pump device 3 is provided in a suspended state in the oil tank 1, when the hydraulic elevator power unit is transported from the factory to the installation site. In addition, there is a problem that the pump device 3 shakes and collides with the side surface of the oil tank 1 to be deformed or damaged.

The present invention has been made to solve the above problems, and an object of the present invention is to obtain a power unit for a hydraulic elevator capable of supporting the pump device on the side surface of the oil tank during transportation.

[0006]

In the power unit for a hydraulic elevator according to the present invention, there is provided a supporting device which is mounted near the pump device and which is disposed in contact with the inner surface of the oil tank when necessary to temporarily fix the pump device to the oil tank. Be done.

[0007]

In the pump device of the power unit for the hydraulic elevator constructed as described above, the support device advances to the inner surface of the oil tank during the transportation, and is temporarily fixed to the oil tank. Further, after the installation, the support device is retracted from the inner surface of the oil tank and is placed in a suspended state.

[0008]

1 to 4 are views showing an embodiment of the present invention, in which the same reference numerals as those in FIGS. 5 and 6 indicate corresponding parts.
Reference numeral 1 denotes a frame body of the suspension member 4, the upper side of which is attached to the suspension rod 6 and the lower side of which is attached to the pump device 3. Reference numeral 7 is a fixed body fixed to the frame body 41 and arranged with the longitudinal direction orthogonal to the rotation axis of the pump device 3, and 8 is provided with a slot 81 on one side to overlap with the fixed body 7 and the other side is the inner surface of the oil tank 1. The support bodies facing each other are arranged on both sides orthogonal to the rotation axis of the pump device 3, respectively. Reference numeral 9 denotes a fastener, which includes a bolt inserted into the slot 81 of the two supports 8 and the fixed body 7, a nut screwed into the tip of the bolt, and a split pin inserted into the tip of the bolt outside the nut. It is configured. Reference numeral 10 is a support device including a fixed body 7, a support body 8 and a fastener 9.

In the hydraulic elevator power unit constructed as described above, the fasteners 9 are loosened, the supports 8 are moved forward to the positions in contact with the inner surface of the oil tank 1, and the fasteners 9 are tightened to form the fixed body 7. The three members of the support 8 are fixed. As a result, the pump device 3 is temporarily fixed to the oil tank 1, and the hydraulic elevator power unit is transported in this state. After the installation, the fastener 9 is loosened to retract the support 8 to form a gap with the inner surface of the oil tank 1,
By tightening the fastener 9 again, the fixed body 7 and the two support bodies 8 are fixed, and the pump device 3 is suspended. As a result, the pump device 3 for the oil tank 1 during transportation
It is possible to prevent the occurrence of accidents such as deformation during transportation by preventing the rocking displacement of the. Further, since the split pin is provided, the nut does not come off when the fastener 9 is operated,
It is possible to efficiently perform temporary fixing and releasing work without dropping the nut and the like into the hydraulic oil 2.

[0010]

As described above, according to the present invention, the supporting device is mounted near the pump device as described above, the supporting device is brought into contact with the inner surface of the oil tank at the time of transportation, and the pump device is temporarily fixed to the oil tank. The pump device is arranged in a suspended state by retracting from the inner surface of the oil tank. This allows
This has the effect of preventing rocking displacement of the pump device with respect to the oil tank during transportation to prevent accidents such as deformation during transportation. Further, since the nuts and the like do not come off during the operation of the fastener, the nut is not dropped into the hydraulic oil, and the temporary fixing and releasing work of the pump device can be efficiently performed.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line YY of FIG.

FIG. 3 is a sectional view taken along line ZZ of FIG.

FIG. 4 is a diagram illustrating a temporary fixing released state of FIG. 2;

FIG. 5 is a view corresponding to FIG. 1 showing a conventional hydraulic elevator power unit.

6 is a sectional view taken along line XX of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Oil tank 2 Hydraulic oil 3 Pump device 4 Suspension member 7 Fixed body 8 Support body 9 Fastener 10 Support device

Claims (2)

[Claims] 1. An oil tank containing hydraulic oil, a pump device suspended in the oil tank via a suspension member and placed in a state of being immersed in the hydraulic oil, and the suspension member closer to the pump device. A fixed body mounted on the fixed body and a support body that is movably fastened to the fixed body and is arranged to be in contact with the inner surface of the oil tank when necessary, and a support device that temporarily fixes the pump device to the oil tank. Power unit for hydraulic elevator. 2. Engaging with both the fixed body and the support,
2. The power unit for a hydraulic elevator according to claim 1, further comprising a fastener that is clamped and fixed to each other and released to be released by manual operation without being disengaged.