JPS6347997B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support device for a circular grate type rotating body that accumulates and processes grains and lumps of a sinter cooler, coke dry extinguisher, etc.

A conventional example of the circular grate type rotating body will be explained with reference to FIGS.
A baffle plate 4, which is supported on the rail 3 via a plurality of support rollers 2 fixedly attached to the lower periphery of the circular grate body 1 and protrudes from the outer periphery of the circular grate main body 1, is disposed outside the rail 3 and is connected to a drive motor M. The circular grate main body 1 is sandwiched between a plurality of drive rollers 5, 5 rotated by a
is a baffle plate 4 rotated by drive rollers 5, 5.
It is designed to rotate on the rail 3 via the support roller 2 by receiving rotational force from the support roller 2, but errors in manufacturing and installation of the support roller 2 and the rail 3,
Thermal deformation of the main body of the circular grate due to the thermal energy of grains and lumps a, as well as the difference in frictional resistance between each support roller 2 and the rail 3 due to unbalanced driving force, etc. 1 causes an eccentric movement that deviates from the rotating orbit. For this purpose, a plurality of side rollers 7 are provided on the side surface of the circular grate main body 1, and a side rail 8 is provided on the outside of the side rollers 7 with a gap that allows manufacturing and installation errors. The roller 7 suppresses the eccentric movement of the circular grate main body 1 and prevents the support roller 2 from falling off the rail 3.

However, in the conventional support device for a circular grate type rotating body, although it is possible to prevent the support roller 2 from falling off the rail 3, the gap is provided between the side roller 7 and the side rail 8. Therefore, when some of the side rollers 7 come into contact with the side rails 8 and the rotation trajectory of the circular grate body 1 is corrected, a very large horizontal force is applied to the support roller 2, causing the support roller 2 to slip sideways. This has the disadvantage that the large friction between the support rollers 2 and the rails 3 causes significant wear and damage to them.

Further, as shown in FIG. 2, a central axis 10 is provided,
It is attached to the circular grate main body 1 and the frame structure 11
Although there is a structure in which the supporting rollers 2 are connected by 2, it is not possible to avoid sideways slipping of the support roller 2 due to manufacturing and installation errors, etc., and the production cost increases due to the need for the frame structure 11, and the circular A framework structure 11 forms the inner space of the grate body 1.
However, there are drawbacks such as severe limitations and hindrances to its use.

The present invention was developed in order to eliminate the above-mentioned drawbacks of the conventional circular grate type rotary body support device, and it includes a support roller attached to the underside of the circular grate body via a slide bearing. The support roller is disposed so as to be movable in the horizontal direction, and the tip of the base of the support roller is rotatably pivoted to a pin provided vertically on the lower side of the circular grate main body, so that as the circumferential grate main body rotates. The supporting roller is pulled by the pin and is configured to be freely rotatable in the horizontal direction, and the purpose of this is that when the circular grate main body eccentrically moves, the running direction of the supporting roller is circular. The object of the present invention is to provide a support device for a circular grate type rotary body that prevents sideways slipping of the support roller by automatically adjusting the direction of movement of the grate body.

The present invention has the above-mentioned configuration, in which a support roller is disposed on the lower side of the circular grate main body so as to be movable in the horizontal direction via a slide bearing, and a supporting roller is vertically installed on the lower side of the circular grate main body. The tip of the base of the support roller is rotatably pivoted to a pin, and the support roller is pulled by the pin and can rotate in a horizontal direction as the circular grate main body rotates. , the support roller supports the main body of the circular grate via the slide bearing, and the tip side of the base of the support roller is pulled by the pin on the main body side of the circular grate, and the support roller The support roller is automatically rotated horizontally around the pin as a center of rotation via a slide bearing so as to follow the direction of movement of the circular grate main body, and the running direction of the support roller follows the direction of movement of the circular grate main body. Since the correction is automatically made, even if the circular grate body makes eccentric movements, the supporting rollers will not slip sideways, and wear and damage to the supporting rollers and rails will be significantly reduced, and the rotational support function of the circular grate body will be improved. is significantly improved.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. An embodiment of the present invention is shown in FIG. 3, and this embodiment has features in the support roller portion of the support device for the circular grate type rotating body shown in FIG. 1A. 1 is a circular grate main body, 12 is a support roller, and the support roller 1
2 is composed of a base consisting of a base plate 12a and a pair of supporting legs 12b, and a roller 12c, and further includes:
The support roller 12 supports the circular grate main body 1
It is arranged to be movable in the horizontal direction on the lower side of the circular grate main body 1 via a contact plate 20 provided on the lower side and a slide bearing 21, and supports the circular grate main body 1, and also supports the circular grate main body 1. A bearing 23 provided on the tip side of the base of the support roller 12, that is, the base plate 12a, is rotatably pivoted to a pin 22 vertically installed on the lower side, and the circular grate main body 1 rotates to the right in the figure. Then,
The support roller 12 is pulled by a pin 22 and is rotatable horizontally by a slide bearing 21.

Also, the base plate 12 of the circular grate body 1 and the support roller 12 generated by the slide bearing 21
The structure has a structure in which the frictional force between a and a is significantly smaller than the frictional force caused by a sideways slip occurring between the rail 3 and the roller 12c of the support roller 12 when the circular grate main body 1 performs an eccentric movement away from a predetermined circular rotation orbit. The slide bearing 21 allows the support roller 12 to rotate independently in the horizontal direction below the circular grate main body 1 before the roller 12c causes sideways sliding.

Incidentally, a plurality of support rollers 12 shown in FIG. 3 are provided on the lower side of the periphery of the circular grate main body 1 and are arranged so that they can run on the rails 3.

Since the illustrated embodiment has the above-mentioned configuration, when the circular grate main body 1 performs an eccentric movement away from the predetermined circular rotation orbit, the support roller 12 is moved to the pin on the circular grate main body 1 side. 22 and receives a traction force, the main part of the support roller 12 is automatically rotated by the slide bearing 21 in a direction that follows the direction of movement of the circular grate main body 1, as shown in FIG. 12 sideslip is eliminated,
No wear or damage to the rail 3 or support rollers due to side slipping. That is, as shown in FIG. 4, the rotational direction A of the circular grate main body 1, the eccentricity l (O→O') of the circular grate main body 1, the traction force and direction B of the support roller 12 by the pin 22, and the eccentric force C and rotational force D become as shown in the figure, and the running direction of the support roller 12 is corrected by automatically rotating in the horizontal direction from the solid line to the dotted line position as shown in the figure.

Note that the conventional support roller 2 shown in FIG.
As shown in FIG. 5, the traction force received by the circular grate main body 1 during eccentric movement is B', and a large lateral sliding force E is added, causing a lateral sliding that moves from the solid line position to the dotted line position on the rail 3. However, in this implementation In this example, as shown in FIG. 6, the point of action (pin 22) of the support roller 12 receiving the traction force from the circular grate main body 1 is different from the load support point (roller 12c) at the tip of the base (bearing). 23), a rotational moment about the pin 22 is generated in the support roller 12 due to the component force of the traction force ``,'' and this moment is applied to the support roller 12.
This action causes the support roller 12 to move from the solid line shown in the figure to the dotted line position so as to follow the eccentric movement of the circular grate main body 1, and the support roller 12 and the rail Lateral slipping of the support roller 12, which is the main cause of wear in No. 3, is eliminated.

Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design modifications can be made without departing from the spirit of the present invention. .

[Brief explanation of the drawing]

FIGS. 1A and 1B are a side view and a plan view showing a conventional support device for a circular grate type rotating body, FIG. 2 is a plan view showing another conventional example, and FIG. 3 is a plan view showing an example of the present invention. 4 is a functional explanatory diagram of the supporting roller in this embodiment, FIG. 5 is an explanatory diagram of lateral slipping of the conventional supporting roller, and FIG. 6 is an explanation of horizontal rotational movement in this embodiment. It is a diagram. 1: Circular grate main body, 12: Support roller, 12a: Base plate (base body), 12b: Support leg (base body), 12c: Roller, 21: Slide bearing, 22: Pin, 23: Bearing (base body tip).

Claims (1)

[Claims] 1. A support roller is disposed on the lower side of the circular grate main body via a slide bearing so as to be movable in the horizontal direction, and the base tip of the support roller is rotated by a pin vertically installed on the lower side of the circular grate main body. A support for a circular grate type rotating body, characterized in that the supporting roller is freely pivotally mounted so that as the circular grate main body rotates, the support roller is pulled by the pin and can freely rotate in the horizontal direction. Device.