JPH0643041Y2 - Dust storage and discharge device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention particularly hygienically and efficiently treats dust thrown into a rotary drum, and discharges the treated dust to a dust collecting vehicle or the like. The present invention relates to a dust storage and discharging device.

[Conventional technology]

The dust storage and discharge device is installed, for example, at the bottom of a building and treats and discharges dust that has been put into a duct chute, but is generally configured as shown in FIG. -32202 and JP-A-56-136706
(See the official gazette).

That is, the rotary drum 1 is mounted and supported on the rollers 3 and 4 rotatably supported on the pedestal 2 by the drum rings 1a and 1b mounted on the front and rear parts of the rotary drum 1, and at the rear end opening of the rotary drum 1. An input port 5 provided upright on the gantry 2 is hermetically fitted in the unit via a seal ring 6.

A gate-shaped base frame 7 is erected at a position in front of the rotary drum 1 of the gantry 2, and a swingable arm 9 is vertically provided at the tip of the base frame 7 via a cylinder 8. The lower end of the arm 9 is connected to substantially the center of the discharge lid 10 that closes the front end opening of the rotary drum 1, whereby the cylinder 8 is expanded and contracted to open and close the discharge lid 10. Further, a driven external gear 11 is integrally connected to the rear end portion of the rotary drum 1, and the driven external gear 11 is connected to an electric motor 12 as a driving device fixed to the pedestal 2 and a speed reducer 13 and a driving gear 14. The rotary drum 1 is configured to rotate via the gears 11 and 14 as the electric motor 12 rotates.

When installing the dust storage and discharging device in a building, a high-rise house, or the like, it is strongly desired to reduce noise and vibration as much as possible in consideration of communication devices in the office, residents, and the like.

[Problems to be solved by the device]

However, in the above-mentioned conventional example, rust is easily generated on the surfaces of the drum rings 1a, 1b of the rotary drum 1, and when the rotary drum 1 is rotated in the state where rust is generated, the surface of the rings 1a, 1b Vibration and noise when rust breaks down are major problems.

In order to prevent the occurrence of this rust, it is also common to apply grease to the surfaces of the rings 1a, 1b, but in this case dust adheres to the grease and causes misalignment, and the rollers 3, 4 It is generally known that the abutting drum rings 1a, 1b are rubber-tensioned, but in this case as well, the rubber is worn to cause misalignment, which causes noise and vibration. The sealing property will also deteriorate.

Further, the concentricity of the rotary drum 1 is very important from the viewpoint of ensuring the sealing property and the meshing state of the gears of the drive portion, but the above-mentioned conventional example has a structure in which concentricity is difficult to be produced in the production and assembly of parts. That is, the rotary drum 1 is manufactured while confirming the concentric performance at the drum rings 1a and 1b in two places, the seal rings 6 at the front and rear ends in one place, and the drive gear parts 11 and 14 in total of five places. When mounting the discharge lid 10 on the pedestal 2, it is necessary to align these cores with the core of the seal ring 6 at the end of the rotary drum 1, so it is necessary to assemble while adjusting vertically and horizontally. It was Moreover, since the weight of the input port 5 and the discharge lid 10 is generally heavy, this adjustment work is quite difficult.

Therefore, it is quite difficult to secure the sealing property, and when the sealing property is poor, leakage of sewage or odor occurs.

In view of the above, it is an object of the present invention to provide a product which suppresses the generation of noise and vibration as much as possible, ensures the sealing property of the end portion of the rotary drum, and further facilitates the assembly.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the dust storage and discharge device according to the present invention rotatably supports the outer peripheral surface of the front end portion and the inner peripheral surface of the rear end portion of a rotating drum through a ball bearing type bearing. A driven external gear that meshes with a gear for driving a drum is fixed to an outer ring of a rear end side bearing, and seal rings are arranged on both sides of balls enclosed in the both bearings.

[Action]

According to the present invention configured as described above, since the rotary drum is supported by the ball bearing type bearing, noise and vibration generated by using the roller are generated, and the drum ring is attached to the rotary drum. It is possible to secure a reliable and more permanent sealing property here by preventing the difficulty of centering caused by the above, and by disposing the seal rings on both sides of the ball enclosed in the bearing. .

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS.

The rotary drum 1 is rotatably supported on the outer peripheral surface of the front end of the rotary drum 1 through a ball bearing type bearing 15 on a gate-shaped support stand 16 which is erected on the stand 2.

That is, the outer peripheral surface of the front end of the rotary drum 1 is the inner ring 15a of the bearing 15.
Is fixed to the inner peripheral surface of the bearing 15, and the inner peripheral surface of the support 16 is the outer ring of the bearing 15.
The ball 15c is fixed to the outer peripheral surface of 15b, and a ball 15c is enclosed between the inner ring 15a and the outer ring 15b.

A swingable arm 9 is vertically provided at the tip of the support base 16 via a cylinder 8, and the lower end of the arm 9 closes a front end opening of the rotary drum 1 by a discharge lid.
It is rotatably connected to a substantially central part of the bearing 10 through a bearing 17, whereby the discharge lid 10 is opened and closed by the expansion and contraction of the cylinder 8.

Further, a pair of seal links 15d, 15d are arranged on both sides of the ball 15c across the inner ring 15a and the outer ring 15b.

Further, the rear end of the rotary drum 1 is rotatably supported on the input port 5 fixed to the pedestal 1 via a ball bearing type bearing 18 on the inner peripheral surface thereof.

That is, the outer ring 18b of the bearing 18 is integrally connected to the rear end portion of the rotary drum 1, and the inner ring 18a is fixed to the outer peripheral surface of the charging port 5, and the ball between the inner ring 18a and the outer ring 18b is fixed. 18c is enclosed.

A driven external gear 19 is engraved on the outer peripheral surface of the outer ring 18b,
The driven external gear 19 is connected to an electric motor 12 as a drive device fixed to the pedestal 2 via a speed reducer 13 and a drive gear 14, and accordingly, as the electric motor 12 rotates,
The rotary drum 1 is configured to rotate via the gears 14 and 19.

Further, a pair of seal links 18d, 18d are arranged on both sides of the ball 18c across the outer ring 18a and the inner ring 18b.

In this way, the rotary drum is a ball bearing type bearing 1
5,18, the use of rollers causes the generation of noise and vibration caused by mounting and supporting the rotating drum on the roller, and the centering caused by mounting the drum ring on the rotating drum. To prevent the difficulty and to secure reliable and more permanent sealing performance by arranging the seal rings 15d and 18d on both sides of the balls 15c and 18c enclosed in the bearings 15 and 18, respectively. To do.

Further, in front of the rotary drum 1, there is provided a conveying device 22 which is close to the discharge lid 10 and includes a belt conveyor 20 and a jack 21 which holds the belt conveyor 20. The transport device 20 is for transporting the dust discharged from the rotary drum 1 and loading it on a dust collecting vehicle or the like.

[Effect of device]

Since the present invention is configured as described above, it is possible to reliably reduce noise and vibration generated when the rotary drum rotates, and to ensure a more reliable and permanent sealing property at both ends of the rotary drum. You can

Moreover, there is an effect that the centering can be facilitated and the parts can be easily manufactured and assembled.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention, FIG. 1 is a vertical side view, FIG. 2 is an enlarged view of part A of FIG. 1, FIG. 3 is an enlarged view of part B of FIG. The drawing is a partially cut side view showing a conventional example. 1 ... Rotary drum, 2 ... Stand, 5 ... Inlet, 10 ...
Discharge lid 10, 12 …… Electric motor, 14 …… Drive gear, 15,1
7,18 …… Bearing, 15a, 18a …… Inner ring, 15b, 18b …… Outer ring, 15
c, 18c …… ball, 15d, 18d …… seal link, 16 …… support base, 19 …… driven external gear.

Claims (1)

[Scope of utility model registration request] 1. An outer peripheral surface of a front end portion and an inner peripheral surface of a rear end portion of a rotary drum are rotatably supported via ball bearing type bearings, and a driven external gear meshing with a gear for driving the rotary drum is rearward. A dust collecting and discharging device, characterized in that it is fixed to the outer ring of the end side bearing, and further, seal rings are arranged on both sides of the ball enclosed in the both bearings.