JPH0732487Y2 - Idle roller support device for belt conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention provides an idle roller that prevents the conveyor section from hanging down by touching the lower surface of the conveyor section on which the object to be conveyed is placed. Supporting device.

Conventionally, as an idle roller supporting device in a belt conveyor, conventionally, on a side surface of a pillar standing on a base body arranged below a conveyor of a belt conveyor, a notch groove opening to an upper surface of the pillar is formed, A structure has been used in which a shaft portion which is relatively rotatably protruded from both ends of the idle roller via a bearing is fitted in the notch groove.

Problems to be Solved by the Invention When the object to be conveyed conveyed by the belt conveyor is such as dust that scatters dust around, the bearing of the idle roller is easily damaged by the dust. The rollers need to be replaced frequently.

In the conventional supporting device, since the notch groove into which the shaft portion of the idle roller is fitted is formed on the upper surface of the support column, when the idle roller is removed from the support column, the idle roller is lifted upward and the idle roller is also removed. When the idle roller is mounted on the support column, the idle roller is lowered from above, and when the idle roller is replaced, the conveyor section of the belt conveyor must be lifted up.

However, in a state where the transported object remains on the belt conveyor, not only a great amount of labor is required to lift the transport unit, but also the transported object may fall when the transport unit is lifted, It was necessary to idle the belt conveyor until the transported object was not placed on the surface. Further, at the start end of the belt conveyor, a rubber strip is attached between the skirt board for preventing the transported objects such as earth and sand dropped at the start end from scattering and the upper surface of the transfer section of the belt conveyor. In this case, since the conveying portion is strongly pressed against the idle roller by the rubber strip, it is necessary to make it possible to lift the conveying portion by removing the rubber strip.

As described above, the conventional supporting device has a drawback that it requires time-consuming operation of the belt conveyor and attachment / detachment of the rubber strip, which is troublesome and that the interruption time of the conveyance due to the replacement of the idle roller becomes long.

Means for Solving the Problems The idle roller supporting device of the present invention is, as a means for solving the above-mentioned problems, at least one of a base body arranged below a conveying portion on which a conveyed object of a belt conveyor is placed. A plurality of columns, in which the book is located outside the transport unit, are erected, and the columns located outside the transport unit can be freely rotated relative to each other through bearings from both ends of an idle roller that touches the lower surface of the transport unit. Notch support part where one of the protruding shaft parts fits,
One of the shafts is formed so as to open laterally so that it can be removed in parallel with the transport unit, and a fitting groove that fits into the one shaft is opened at the lower edge to form a box-shaped stopper. The body is attached so that it can be removed from its support by upward movement, and a support hole facing the notch support is formed in the other support that is paired with the support located outside the transport section. In the support hole,
The other shaft portion of the idle roller can be swung substantially parallel to the transport portion between the posture in which the idle roller fits the one shaft portion in the notch support portion and the posture in which the idle roller is detached from the notch support portion. In this way, the idle roller is fitted in such a manner that it can be removed from its supporting hole by moving in the axial direction when one shaft is removed from the notch support.

Advantageous Effects and Advantages of the Invention The present invention has the above-described structure, and when the idle roller is attached, the idle roller is slanted with respect to a predetermined supporting posture and is moved in the axial direction, so that the other shaft portion is formed into the support hole. The shaft is inserted and fitted, and one shaft portion is fitted to the notch support portion by swinging the idle roller about the support hole substantially in parallel with the conveying portion of the belt conveyor. After that, by attaching the retaining body to the column and fitting the fitting groove of the retaining body to the one shaft portion, the one shaft portion is prevented from coming off the notch support portion, and the idle roller is placed in the predetermined posture. Supported.

When removing the idle roller, conversely to the above, remove the retaining body from the column and swing the idle roller to remove one shaft part from the notch support part, and remove the idle roller in an oblique position. By moving in the axial direction, the other shaft portion is pulled out from the support hole.

In addition, since the pillar to which the retaining member is attached and detached is located outside the conveyor of the belt conveyor, the retaining body does not interfere with the conveyor when attaching and detaching to the pillar. Thus, in the device of the present invention, the idle roller is attached and detached by swinging the idle roller substantially parallel to the conveyor of the belt conveyor and moving it in the axial direction. There is no need to lift the transport section when replacing.

Therefore, the object to be conveyed may remain on the belt conveyor, and since the rubber strip attached to the starting end of the belt conveyor does not have to be removed, idle operation of the belt conveyor and attachment / detachment of the rubber strip are performed. The effect is that it does not take time and effort. Further, since the labor of idle operation of the belt conveyor and the attachment / detachment of the rubber strip are not required, there is an effect that the interruption of the conveyance due to the replacement of the idle roller can be suppressed to the shortest time.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.

The belt conveyor 1 is made up of an endless belt 2 hung between pulleys (not shown) so that an object to be conveyed (not shown) is placed on a conveyor 3 that moves in the horizontal direction. I'm running.

Between the transport unit 3 and the return unit 4 that moves in the opposite direction below the transport unit 3, a plurality of base bodies 5 made of slender angle members in a direction perpendicular to the transport direction are provided in a predetermined direction in the traveling direction of the transport unit 3. They are arranged at spaced positions and are fixed in a state of being bridged between the side frames 6 provided along both sides of the transport section 3.

Two columns 8, which are hidden under the transport unit 3, are erected at a position near the center of each substrate 5, and each substrate 5 is
At both left and right ends, two columns 8 near the center, and two columns 9 and 9 higher than the column 8, are erected at positions outside the both side edges of the transport unit 3.

Adjacent ones of these columns 8 and 9 are paired with each other, and each idle roller 10 which touches the lower surface of the conveyor 3 of the belt conveyor 1 to prevent its hanging down.
To support. The two center posts 8, 8
The idler roller 10 supported between the shafts has its axis oriented horizontally, and the idler roller 10 supported between the center pillar 8 and the left and right pillars 9 has its axis tilted. The conveyor unit 3 of the belt conveyor 1 is configured to travel in a state where the central portion is recessed from the left and right side portions when an object to be conveyed is placed.

Further, as shown in FIG. 1, at the starting end of the belt conveyor 1, skirt boards 11 and 11 are provided above the left and right ends of the conveying section 3, and the skirt boards 11 and 11 are provided. Rubber strips 12, 12 are mounted in the gap between the lower edge and the upper surface of the transport unit 3.

Next, the support structure of the idle roller 10 by the central support 8 and the support 9 at both ends will be described.

The idle roller 10 has a pair of ring-shaped bearings 13, 13 fitted in the openings at both ends of the tubular portion 14, so that both bearings 13,
It has a structure in which the shaft portions 15a and 15b fitted in 13 are projected from both end surfaces of the tubular portion 14, and the tip end portions of the respective shaft portions 15a and 15b are cut off partially from each other on the outer circumference. It has a shape in which a pair of parallel flat surfaces 16 are formed.

The upper end of the pillar 9 located outside the conveyor 3 of the belt conveyor 1 is bent so as to incline toward the pillar 8, and the supporting surface 17 of the bent portion corresponding to the pillar 8 has the idle roller 10 Notch support part 2 for fitting one shaft part 15a
0 is formed open to the front surface 18 and the upper end surface 19 which are perpendicular to the support surface 17.

At the upper end of the column 9, a box-shaped stopper 22 with an open bottom surface is provided.
Are fitted so as to be detachable by moving them up along the supporting surface 17 of the column 9. A fitting groove 23 that opens to the lower edge of the retaining body 22 is formed on a surface of the retaining body 22 that is aligned with the support surface 17, and one shaft portion 15a is fitted to a predetermined position of the notch supporting portion 20. When the retaining member 22 is attached to the column 9 in the state where
The shaft 15a is fitted to the shaft 15a to prevent the shaft 15a from moving in the horizontal direction.

On the other hand, the other shaft portion 15b of the idle roller 10 is fitted to the support surface 27 facing the notch support portion 20 of the column 8 near the center with a small gap with the flat surface 16 of the idle roller 10 facing vertically. A supporting hole 28 is formed on the upper surface of the column 8 so as to open. In a state where the other shaft portion 15b is fitted in the support hole 28, the idle roller 10 cuts one shaft portion 15a into the notch support portion 20 in an inclined plane parallel to the transport portion 3 of the belt conveyor 1. Swinging between the supporting posture which is fitted to the vertical direction of the conveying unit 3 and is perpendicular to the traveling direction of the conveying unit 3 and the posture in which one shaft portion 15a is detached from the notch supporting unit 20 and is oblique to the supporting posture. I am getting to get it. In addition, Idol Laura
By moving 10 in an axial direction in a state of being inclined with respect to the support posture, the other shaft portion 15b can be fitted into the support hole 28 or can be pulled out from the support hole 28. .

Next, a procedure for attaching and removing the idle roller 10 will be described.

When the idle roller 10 is attached, the idle roller 10 is moved in the axial direction with the retaining member 22 removed from the support column 9 while being inclined with respect to a predetermined supporting posture perpendicular to the conveyor 3 of the belt conveyor 1. As a result, the other shaft portion 15b
Are non-rotatably fitted into the support holes 28. By pivoting the idle roller 10 about the support hole 28 in an inclined plane parallel to the transport unit 3, one shaft portion 15a is non-rotatably fitted to the notch support unit 20. After that, the stopper 22
Is attached to the support column 9 from above, and the fitting groove 23 is attached to the one shaft portion 15
Notch support part of one shaft part 15a by fitting to a
Removal from 20 is blocked, which allows idle rollers
The belt 10 is supported in a predetermined posture that is perpendicular to the traveling direction of the belt conveyor 1.

When the idle roller 10 is removed, first, the retaining member 22 is moved upward to remove it from the support column 9, and the idle roller 10 is swung in an inclined plane parallel to the conveyor section 3 of the belt conveyor 1. Thus, the one shaft portion 15a is detached from the notch support portion 20. Then, by moving the idle roller 10 in the axial direction, the other shaft portion 15b is pulled out from the support hole 28.

Since the column 9 to which the retaining body 22 is attached / detached is located outside the transport unit 3 of the belt conveyor 1, the retaining body 22 should not interfere with the lower surface of the transport unit 3 when attaching / detaching to / from the column 9. There is no.

As described above, when the idle roller 10 is attached and detached, the idle roller 10 is operated by the belt conveyor 1
Instead of moving in the direction of approaching and separating from the lower surface of the transport unit 3, the swinging and axial movement in an inclined plane parallel to the transport unit 3 are performed. Therefore, when the idle roller 10 is attached or detached, it is not necessary to lift the conveyor section 3 of the belt conveyor 1 upward, and the conveyor section 3 is pressed against the idle roller 10.
The effort to remove 12 is saved, and the work of attaching and removing is easy.

In the apparatus of this embodiment, since the notch support portion 20 of the support column 9 and the support hole 28 of the support column 8 are also opened upward, the idle roller is used when the transport unit 3 of the belt conveyor 1 can be raised upward. It is also possible to attach / detach also by moving 10 in parallel in the vertical direction.

In addition, the support structure of the idle roller 10 by the two pillars 8 and 8 in the center is such that the shaft portions 15 at both ends of the idle roller 10 are formed in the notch grooves 31 and 31 formed on the supporting surfaces of the pillars 8 and 8 corresponding to each other.
15 is inserted from the front side of the columns 8, 8 and the opening of the notch groove 31 to the front side is closed by the retaining body 33 to prevent the shafts 15 and 15 from being pulled out, and thus the idle roller 10 Will be supported. And when removing the idle roller 10,
By removing the stoppers 33, 33 from the mounting cylinders 34, 34, the openings of the notch grooves 31, 31 are opened, and the idle roller 10 is horizontally moved in parallel with the central portion of the conveyor 3 of the belt conveyor 1. It's happening all the time.

[Brief description of drawings]

The attached drawings show an embodiment of the present invention. Fig. 1 is a partially cutaway front view, Fig. 2 is a partially enlarged perspective view, and Figs. 3 and 4 are partially cutouts showing an idle roller attaching / detaching procedure. Partially enlarged cross-sectional views, FIG. 5 and FIG. 6 are partial plan views showing a procedure for attaching and detaching the idle roller. 1: Belt conveyor, 3: Conveyor, 5: Base, 8, 9: Support, 1
0: idle roller, 13: bearing, 15a, 15b: shaft part, 2
0: Notch support, 22: Stopper, 23: Fitting groove, 28: Support hole

Claims (1)

[Scope of utility model registration request] 1. A plurality of support posts, at least one of which is located outside the transfer section, are erected on a base body which is arranged below a transfer section on which an object to be transferred of a belt conveyor is placed. A notch support portion to which one of the shaft portions protruding relative to each other via bearings from both ends of an idle roller that is swayed by the lower surface of the conveyance portion is fitted to the support column located outside the portion, The shaft part is formed so as to be opened sideways so that it can be removed substantially parallel to the carrying part, and the fitting groove that fits into the one shaft part is opened at the lower edge to form a box-shaped retainer. The body is attached so as to be detachable from the support column by moving upward, and a support hole facing the notch support portion is formed in another support column paired with the support column located outside the transport section. Then, the other shaft portion of the idle roller is inserted into the eye of the support hole. In order to allow the roller to swing about one of the shaft portions into the notch support portion and between the posture of detaching the one shaft portion from the notch support portion, the roller may swing substantially parallel to the transport portion. An idle roller supporting device for a belt conveyor, characterized in that the idle roller supporting device is adapted to be fitted so as to be detachable from the supporting hole by axial movement of the idle roller in a state where the shaft portion is detached from the notch supporting portion.