JPS6364643B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support device for an inclined rotating drum,
Reduce rotational resistance by reducing the contact area between the rails wrapped around the drum and the support rollers, and prevent the drum position from shifting in the axial direction by effectively sandwiching the rails between multiple rollers that gradually reduce in diameter in the axial direction. A plurality of rollers whose diameters are gradually reduced in the axial direction are arranged at a plurality of locations with each axis at the same inclination angle as the drum axis and on the same orthogonal plane to the drum axis.
Furthermore, at least two rollers are oriented in opposite directions, and the drum is tilted by mounting the rollers around the machine frame at at least two points on the axis of the drum, and placing a rail wound around the outer circumference of the drum on these rollers. The device is characterized in that it is rotatably supported at a predetermined position, and its implementation will be detailed as follows with reference to the drawings. 1 is a roller and has a shape whose diameter is gradually reduced in the axial direction, for example, a truncated cone shape or a bowl shape. Reference numeral 2 is a normal rotating drum used for stirring and mixing raw materials, and openings 3 and 4 at both ends can be closed at any time. The axis 5 of this drum 2 is inclined with respect to the horizontal plane by a suitable angle α. The rollers 1 have the axes 7 of their shafts 6 the same as the inclination angle α of the drum 2, and at least two rollers 1 are arranged at two or more locations on the same orthogonal plane to the axis 5 of the drum 2.
are oriented oppositely to each other and are mounted on the machine frame 8 via bearings 9 at at least two points on the axis of the drum. Rails 10 are wound around the outer periphery of the drum 2, and by placing these rails 10 on the respective rollers 1, the drum 2 has an inclination angle of α,
It is rotatably supported at a predetermined position.

The diameter reduction direction of the roller 1 may be opposite to the illustrated example. A chain band 11 is also encircled around the drum 2, and a chain wheel 13 driven by an electric motor 12 is engaged with this chain band 11 to rotate.

If the axial length of the roller 1 is made longer than the width of the rail 10 and the edge of the rail 10 is placed on the inner side of the large diameter side edge of the roller 1, it will not deviate, but the roller 1 will not deviate. By forming the collar 21 on one side, it is possible to reliably prevent its deviation. At this time, if a relief 22 is formed on the inner surface of the collar 21,
Contact with the side surface of the rail 10 can be prevented, and an increase in rotational resistance can be prevented.

The sizes of the rollers 1 do not have to be equal, but they are all the same size, and on a plane perpendicular to the axis 5 of the drum 2, on the same radius r with respect to the center C of the drum 2, and with an equal central angle θ. If the central roller 1' is placed on a vertical line passing through this center C, the axis 5 of the drum 2 will be reliably maintained at a predetermined inclined position, and the drum 2 will rotate very stably, so that no vibrations can occur. You will no longer have to worry about it.

The shafts 6 of the rollers 1 are rotatably supported by bearings 9, and the machine frame 8 supporting these bearings 9 is supported by a horizontal portion 31 and separate support portions 33 standing upright from a base portion 32. It has sloped portions 34 on both sides. These inclined portions 34 have long holes 3 in the longitudinal direction.
5 is drilled and the bolt/nut 3 that attaches the bearing 9
By adjusting the position of fastening through the elongated hole 35 of 6, even when the rail 10 of the drum 2 is worn out, the contact between the roller 1 and the rail 10 can be maintained reliably.

In the drawing, 41 is a transmission chain wheel coaxial with the chain wheel 13, 42 is a bearing that rotatably supports the shaft 43 of these chain wheels, 44 is a transmission chain band, and 45 is this bearing 4.
3, the axis 46 of the shaft 43 is also supported at an inclination angle α.

In the illustrated supporting device, by placing the rail 10 of the drum 2 on the roller 1, the rail 10 is substantially sandwiched between the plurality of rollers 1 which are sequentially contracted in the axial direction, so that the rail 10 is substantially sandwiched between the rollers 1 and It will not deviate. The contact area between the roller 1 and the rail 10 is extremely narrow and does not provide much resistance to rotation.
Even if the rail 10 becomes worn, the rail 10 is always maintained at a predetermined position on the axis 5 because the rollers 1 are oriented in the opposite direction. Therefore, when raw materials are put into the drum 2 and the drum 2 is rotated, the raw materials are mixed inside and taken out to the outside.

According to the present invention, the rollers that are in contact with and support the drum rails are configured to gradually reduce their diameter in the axial direction, and are oriented in opposite directions so as to substantially sandwich the rails, thereby greatly reducing the contact surface between the rollers and the rails. It has various features such as being able to be made narrower, thus minimizing rotational resistance, ensuring that the drum does not shift in the axial direction, allowing it to always rotate in a predetermined position, causing no runout, and of course preventing abnormal noise from occurring. There is.

[Brief explanation of drawings]

FIG. 1 is a side view showing a specific example of the support device according to the present invention, FIG. 2 is a detailed side view of the main part, and FIG. 3 is a view taken in the direction of the arrows in FIG. 1... Roller, 2... Rotating drum, 5... Drum axis, 7... Roller axis, 8... Machine frame, 9
... bearing, 10 ... rail.

Claims (1)

[Claims] 1. A plurality of rollers whose diameters are reduced sequentially in the axial direction, each axis having the same inclination angle as the drum axis, and at a location on the same orthogonal plane to the drum axis, and at least two rollers oriented oppositely to each other, and further pivoted relative to the machine frame at at least two points on the drum axis;
A support device for an inclined rotating drum, characterized in that the drum is tilted and rotatably supported at a predetermined position by placing a rail wound around the drum's outer periphery on these rollers. 2. A support device for an inclined rotating drum according to claim 1, wherein one of the rollers has a flange at one end to prevent deviation of the track of the drum. 3. Claims 1 or 2 in which the rollers are all the same size and are arranged at three locations on the lower half of the same circumference at equal central angles, and the center of the rollers is located on a vertical line passing through the center of the circle. Support device for the tilted rotating drum as described. 4 The rollers are mounted on bearings, and the machine frame part that supports these bearings has a horizontal part and sloped parts on both sides supported by separate support parts. Claim 3: A hole is drilled, and the position of the roller can be adjusted according to the state of wear of the drum track by adjusting the position of the bearing mounting bolt/nut to be fastened through the long hole.
A support device for a tilted rotating drum as described in 2.