JPS6314254B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to a filter changing device for a large-capacity air conditioner such as a nuclear power plant, and more particularly to a filter changing device installed in a lattice-shaped filter storage rack.

[Prior art]

Conventionally, replacing filters in large-scale air conditioners has often been done manually, and there has been a need for a filter replacement device that can automatically attach and detach filters in a short time using a single machine.

[Object of the Invention] An object of the present invention is to provide a filter replacement device for an air conditioner that can automatically attach and detach the filter in a short time using one machine.

[Key points of the invention]

This invention includes a traveling trolley that travels on rails laid on the floor, a pillar fixed on top of the traveling trolley, an elevating frame that ascends and descends along the pillar, and a transverse frame that rotates above the elevating frame. and,
It is constructed of a pair of filter unit gripping devices that traverses above this traverse frame.

[Implementation sequence of the invention]

Fig. 1 is a side view of one implementation row of the air conditioning filter exchange device according to the present invention, Fig. 2 is a front view, Fig. 3 is a perspective view of the elevating frame, Fig. 4 is a side view of the traversing device, and Fig. The figure is a front view of the traversing device, FIG. 6 is a front view of the filter unit gripping device, FIG. The figure shows a plan view.

The traveling trolley 1 is an I-shaped steel 3 laid on a floor 2.
The vehicle travels via wheels 5 on rails 4 fixed on top of the vehicle. The traveling trolley 1 travels by rotating wheels 5 via a reduction gear 7, a small gear 8, an intermediate gear 9, a large gear 10, and a long shaft 11 by an electric motor 6 with a brake.

In order to prevent skewing, the rail 4 is sandwiched between a pair of rollers 13 that rotate horizontally around a shaft 12 fixed to the carriage 1. A hook 14 is attached to the traveling trolley 1 to prevent it from falling.

A pillar 15 is fixed to the traveling truck 1, and a lifting rail 16 and a lifting rack 17 are attached to the pillar 15.
The elevating frame 20 moves up and down along the pillar 15.
The elevating frame 20 is fixed to a cylinder 21 surrounding the column 15.

A pair of upper and lower brackets 22 are fixed inside the cylinder 21, and a guide roller 23 that rolls along two perpendicular surfaces of the lifting rail 16 is attached to the bracket 22.
and 24 are attached.

The lifting device includes an electric motor with a brake 25 and a bevel gear 2
6. It engages with the lifting rack 17 via a reduction gear 27, a small gear 28, and a large gear 29 to move up and down.

The turning device passes through an electric motor 30, a belt 31, a worm reducer 32, and a small gear 33 to a large turning gear 34.
The transverse frame 40 fixed on the large rotating gear 34 is rotated.

The inner race 35 of the slewing bearing is the cylinder 2
1 and supports the large rotating gear 34 via a plurality of rolling balls 36 arranged on the circumference.

The traversing frame 40 is fixed on the swing gear 34. A filter unit gripping device 60 is installed above the traversing frame 40 and is driven by a pair of traversing devices.

The traverse device includes a worm reducer 42, a small gear 43, an intermediate gear 44, and a large gear 4 from an electric motor 41 with a brake.
5, a rack 47 attached to the lower surface of the intermediate arm 46 is driven to cause the intermediate arm 46 to move laterally. The intermediate arm 46 is traversed by wheels 48 along the overhanging portion 40A of the traverse frame 40.

The filter unit gripping device 60 is traversed along the intermediate arm 46 by means of wheels 49.

The filter unit gripping device 60 is traversed by a sprocket foil 5 whose one end is fixed to the filter unit gripping device 60 and attached to the front part of the intermediate arm 46.
0, and a chain 51 whose other end is fixed to the rear part of the overhanging part 40A of the transverse frame 40, and one end fixed to the filter unit gripping device 60, and a sprocket foil 52 attached to the rear part of the intermediate arm 46, and then the transverse frame 40. A chain 53 whose other end is fixed to the front part of the overhanging part 40A is the intermediate arm 46.
Move by rampant movement.

The filter unit gripping device 60 has a shaft 61A rotatably supported at both ends at the upper and lower parts.
and grips 63A, 63B, 63C and 63D fixed to 61B via keys 62.

Drive device 6 for driving the upper grip 63A
a link 67 whose one end is rotatably fixed to a pin 66 of a crank 65 driven by
The other end of the grip 63A is rotatably fixed to the other end of this link 67 via a pin 68. The rotation angle of the crank 65 is determined by limiting the rotation range of the drive device 64 using a limit switch.

In order to transmit the rotation of the upper shaft 61A to the lower shaft 61B, one end thereof is rotatably fixed to the other end of the upper grip 63B via a pin 69, and the other end is attached to the center of the lower grip 63D. A link 71 rotatably fixed via a pin 70 is provided.

The grips 63A, 63B, 63C and 63D are levers 73 attached to the four corners of the filter outer frame 72, respectively.
grab. When the lever 73 is gripped, it comes into contact with the filter outer frame 72. The lever 73 connects its middle portion to the filter outer frame 72.
The other end is rotatably fixed to a pin 76 via a pin 75.

The pin 76 slides through the hole in the bracket 77 to allow its tip to move in and out of the filter outer frame 72.

The lever 73 is elastically supported at one end by a spring 79 fixed to the filter outer frame 72.

The filter outer frame 72 is attached to a filter storage rack 80 erected on the floor 2, and a pin 76 is engaged with a hook 81 attached to the filter storage rack 80 to resist wind pressure.

Next, the driving method will be explained.

The filter replacement device travels with a new filter unit attached to the filter unit gripping device 60B, and stops in front of the filter unit to be replaced.

The filter unit gripping device 60A moves toward the storage rack 80 and stops at a predetermined position.

Gripping 63A, 63B, 6 by the drive device 64
3C and 63D are driven in the gripping direction to release the lever 73.
When the pin 76 is grasped and brought into contact with the filter outer frame 72, the tip of the pin 76 retreats into the filter outer frame 72 and is released from the hook 81 of the filter storage rack 80. Filter unit gripping device 60A
grabs the used filter unit and retreats, the traversing frame 40 rotates 180 degrees, and the filter unit gripping device 60B takes over.

The filter unit gripping device 60B moves sideways and stops at a predetermined position. Crank 65 reverses to release grips 63A, 63B, 63C and 63D.

The lever 73 rotates under the action of the spring 78, causing the tip of the pin 76 to protrude outside of the filter outer frame 72, and is engaged with the hook 81 of the filter storage rack 80, thereby attaching the outer frame 72 of the new filter unit. to store.

The filter unit gripping device 60B is retracted.
The filter exchange device travels forward to transport the used filter unit to the volume reduction treatment facility, then travels backward to the new filter unit supply facility, where a new filter unit is installed, and the above operations are repeated.

[Modifications and application examples of the invention]

In the practical example, the filter storage rack is erected on one side of the running rail, but the same applies if it is erected on both sides.

〔Effect of the invention〕

In this invention, a pair of transverse filter unit gripping devices are mounted on a transverse frame that rotates on an elevating frame that moves up and down along a column fixed on a traveling carriage that runs on rails laid on a floor surface. Because of this structure, it is possible to replace a used filter unit with a new filter attached to one filter unit gripping device using the other filter unit gripping device, and it is possible to replace a used filter unit in a short time with one machine. It is possible to perform the replacement work and shorten the time when the filter is not installed.

[Brief explanation of the drawing]

FIG. 1 is a side view of one implementation row of a filter exchange device for an air conditioner according to the present invention, FIG. 2 is a front view,
Fig. 3 is a perspective view of the lifting frame, Fig. 4 is a side view of the traversing device, Fig. 5 is a front view of the traversing device, Fig. 6 is a front view of the filter unit gripping device, and Fig. 7 is the same as Fig. 6. 8 is a sectional view taken in the direction of the arrows in FIG. 7, and FIG. 9 is a plan view. DESCRIPTION OF SYMBOLS 1...Traveling trolley, 15...Column, 20...Elevating frame, 40...Traversing frame, 60...Filter unit gripping device.

Claims (1)

[Claims] 1. A running trolley that runs on rails laid on the floor, a pillar fixed on top of this running trolley, an elevating frame that moves up and down along this pillar, a transverse frame that rotates on this elevating frame, and this 1. A filter changing device for an air conditioner, comprising a pair of filter unit gripping devices that traverses on a traversing frame.