JPH07416Y2 - Motor base fixing device for belt conveyor - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt conveyor in which a motor fixed to a motor base, not a motor pulley, drives a drive pulley. More specifically, one end of the motor base is mounted on the same axis as the drive pulley. The invention relates to a motor base fixing device in a belt conveyor that can rotate the motor to fix the motor at an arbitrary position with respect to the conveyor.

[0002]

2. Description of the Related Art The inventor of the present invention pivots one end of a motor base on the same axis as a drive pulley, and can change the motor to an arbitrary position that does not interfere with work or the like depending on the installation position of the conveyor and the application. He is devising the idea (Jun. No. 1-38087). In the conventional belt conveyor by the present inventor, as a means for fixing the motor base, a method of penetrating the set bolt from the side surface of the motor base and fixing it to the frame of the conveyor has been adopted.

[0003]

SUMMARY OF THE INVENTION The present invention is intended to improve the inventor's previous invention to make it easier to use. That is, in the previous invention, when changing the motor position, the set bolts had to be attached and detached one by one, and the operation may be troublesome for a person who is unfamiliar with the handling. Further, the fixing of the motor base is limited by the screw hole for screwing the set bolt, and there is a difficulty that the position cannot be changed delicately. In view of such a point, the present invention is devised so that the motor base can be fixed at an arbitrary position by a simple operation.

[0004]

A motor base 6 mounted on the same axis as the drive pulley 1 is a drive shaft of the drive pulley 1.
It is fixed to a slide ring 13 which is rotatably fitted to a fixed member 11 fixed to the frame 4 of the conveyor on the same axis as 1a or the drive shaft.

A part of the sliding ring 13 is fixed to the frame 4 of the conveyor, and one part is cut to open and close, and a tightening ring 15 that expands in the opening direction by its own elasticity is attached. An operating screw 18 for tightening the tightening ring 15 in the closing direction is attached to the opening 17 which is the cut point of the tightening ring 15. Tightening ring 15
An eccentric cam 21 may be attached instead of the operation screw as a means for tightening the opening portion 17 in the closing direction.

[0006]

[Operation] When the sliding ring 13 fixed to the motor base 6 is tightened by the tightening ring 15, the motor base 6
Is prevented from rotating and is stopped at a predetermined position. When the operation screw 18 or the eccentric cam 21 is loosened in this state, the braking of the sliding ring 13 by the tightening ring 15 is released, and the motor base 6 freely rotates about the same axis as the drive pulley 1 of the belt conveyor. Will be done. At this time, the motor 3 and the drive pulley 1 fixed on the motor base 6
Since there is no fluctuation in the inter-axis distance from the drive shaft 1a, the drive mechanism and the power transmission mechanism are not affected at all.

When the freely rotating motor base 6 is rotated to a desired position and the operation screw 18 or the eccentric cam 21 is tightened, the tightening ring 15 which is opened by its elasticity is closed inward. As a result, the sliding ring 13 is tightened and the motor base 6 is fixed at an arbitrary position.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a motor base fixing device for a belt conveyor according to the present invention will be described below with reference to the accompanying drawings. The belt conveyor shown in FIGS. 2 and 3 has a drive pulley 1.
Assuming that the distance between the tail pulley 2 and the tail pulley 2 is about 2 to 3 meters, and the motor 3 has a relatively small capacity of several tens of watts, the telescopic legs 5 are fixed to the frame 4 so that it can be easily attached to any place. The one that can be installed is shown. However, the width and length are not particularly limited as long as it is a small conveyor driven by a relatively small motor of about several tens of watts.

The motor 3 for driving the drive pulley 1 has one end fixed to a motor base 6 which is rotatably mounted on the same axis as the drive shaft 1a of the drive pulley 1, and the drive shaft of the drive pulley 1 is fixed. A chain 9 is wound between a sprocket 7 mounted on 1a and a sprocket 8 mounted on a motor shaft 3a so that a drive pulley 1 can be driven by a motor 3.

The drive shaft 1a of the drive pulley 1 is supported by a bearing 10 fixed to the frame 4 as shown in FIGS. 1 and 4, and its tip projects outwardly of the frame 4. A small-diameter annular fixing member 11 is fixed to the frame 4 with a screw 12 on the drive shaft 1a protruding outward, and a large-diameter sliding ring 13 is rotatable with respect to the fixing member 11. , And one end of the motor base 6 is fixed to the sliding ring 13 with a screw 14. A sprocket 7 is attached to the tip of the drive shaft 1a which penetrates the motor base 6 and projects outward. The fixing member 11 has a stepped portion 11a having a small diameter inward.
The inner ring 13a is formed on the sliding ring 13 so that they are engaged with each other and do not fall off.

An annular tightening ring 15 is attached to the outer periphery of the sliding ring 13 so as to loosely fit into the sliding ring 13 by cutting the lower end of the drawing into a predetermined width. This tightening ring 15 is a frame 4 at one point on the top.
There are 16 screws. The opening portion 17 located at the lower end of the tightening ring 15 and opened by cutting is provided with tightening means for tightening it in the closing direction.

In the embodiment shown in FIGS. 1 and 4, an operating screw 18 is attached as a means for tightening the open portion 17. It is preferable that the operating screw 18 can be easily tightened or loosened by an operating lever. In the illustrated embodiment, a hexagonal wrench 19 which is a versatile tool is used as the operating lever and no special tool is required.

That is, a part of the sliding ring 13 is fixed to the frame 4 of the conveyer on the outer peripheral side thereof, and a tightening ring 15 is attached which is cut at one position so as to be openable and closable and expands in the opening direction by its elasticity. An operation screw 18 for tightening the tightening ring 15 in the closing direction is attached to the cut position of the tightening ring 15.

FIGS. 5 and 6 show an embodiment in which an eccentric cam is used as a means for tightening the open portion 17 of the tightening ring 15. That is, the tightening ring 15 cut across the opening 17
Connect the connecting rod 22 to one end of the
The other end of the eccentric cam 21 passes through the open portion 17 and penetrates the wall surface 24 at one end of the tightened ring 15 which is cut, and the eccentric cam 21 provided with the lever portion 25 is pivotally attached to the tip thereof.

As a result, the eccentric cam 21 as shown in FIG.
When the motor 17 fixed to the sliding ring 13 is not rotated by closing the opening 17, the opening 17 opens to open the sliding ring 13, that is, the motor base 6, as shown in FIG. The state in which the lever portion 25 of the eccentric cam 21 is raised and lowered can be easily changed to the freely rotatable state.

In the illustrated embodiment, the tightening ring 15 is made of a tough annular member having a relatively large width in the diameter direction, and a notch 20 is provided at a position facing the open portion 17, and a hexagonal bar as an operating lever is used. The wrench 19 and the lever portion 25 of the eccentric cam 21 are devised so as to be elastic enough to be easily opened and closed by manual operation.

Although the motor base 6 is rotatable with respect to the fixed member 11 fixed to the frame 4 separately from the drive shaft 1a, the sliding ring 13 to which the motor base 6 is fixed is fixed to the drive shaft 1a. It may be rotatably attached to the shaft. In this case, the tightening ring 15 is the sliding ring 13 fitted to the drive shaft 1a.
Will be applied to. In addition, reference numeral 26 in the drawing denotes a conveyor belt wound between the drive pulley 1 and the tail pulley 2.

[0018]

According to the motor base fixing device for a belt conveyor of the present invention as defined in claims 1 and 2, the motor base of the motor for driving the drive pulley is fixed by rotating it, for example, at an arbitrary position that does not interfere with the work. The motor base can be easily rotated to an arbitrary position by operating the operation screw or the eccentric cam, and the rotation position can be finely adjusted. Further, the structure of the motor base fixing device is relatively simple and can be provided at a low cost with less possibility of failure.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of a motor base fixing device for a belt conveyor of the present invention, shown partially cut away.

FIG. 2 is a front view showing an example of a belt conveyor embodying the present invention,

FIG. 3 is a plan view showing an example of a belt conveyor embodying the present invention;

FIG. 4 is an exploded perspective view of an embodiment of a motor base fixing device in a belt conveyor according to the present invention.

FIG. 5 is a cross-sectional view showing an embodiment of a motor base fixing device in a belt conveyor of the present invention using an eccentric cam, showing a state of fixing the motor base;

FIG. 6 is a sectional view showing an embodiment of a motor base fixing device in a belt conveyor of the present invention using an eccentric cam, showing a state in which the motor base can be rotated;

[Explanation of symbols]

1-drive pulley, 1a-drive shaft, 2-tail pulley,
3-motor, 4-frame, 6-motor base,
11-fixing member, 13-sliding ring, 15-tightening ring, 17-opening part, 18-operation screw, 19-hexagonal wrench, 21-eccentric cam.

Claims (2)

[Scope of utility model registration request] 1. A motor base 6 to which a motor 3 for driving a drive pulley 1 is fixed has one end portion rotatably mounted on the same axis as the drive shaft 1a of the drive pulley 1 so that the motor base 6 can rotate freely. In the belt conveyor in which the motor base 6 can be fixed by the motor base 6, the motor base 6 is the drive shaft 1a of the drive pulley or the drive shaft.
1a is fixed to a sliding ring 13 which is rotatably fitted to a fixing member 11 fixed to the frame 4 on the same axis as that of 1a. 4 is attached, and one part is cut to open and close, and a tightening ring 15 that expands in the opening direction by elasticity is attached, and the open part 17 where the tightening ring 15 is cut is an operating screw that tightens this in the closing direction. A motor base fixing device for a belt conveyor, which is equipped with 18. 2. An eccentric cam 21 is mounted instead of an operating screw for tightening the opening 17 of the tightening ring 15 in the closing direction.
A motor base fixing device for the belt conveyor described.