JPH101206A - Tension roller retainer for conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate mounting and dismounting work of a roller which gives tension to a conveyor belt. SOLUTION: This tension roller retainer for conveyor is provided with a main body 1, a threaded rod 2 which is formed at the main body 1 so as to make forward and backward rotation freely in a lateral posture, a retaining part 3 which is fitted onto the threaded rod 2 in a contrapositional condition and involves a slit 30 into which the shaft part 50 of a roller 5 is inserted, and a rotation stopping means 4 for stopping rotation of a retaining part 3, and is constituted so that the retaining part 3 may move in the longitudinal direction of the threaded rod 2 by rotating the threaded rod 2. The slit 30 is provided with a longitudinal hole part 30a which is opened below the retaining part 3, and a traverse hole part 30c which is continuous to the longitudinal hole part 30a, and is constituted so that the shaft part 50 may be inserted from the lower open part of the longitudinal hole part 30a and led to an end part of the traverse hole part 30c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller holder for applying tension to a conveyor belt (hereinafter, referred to as a conveyor tension roller holder).

[0002]

2. Description of the Related Art As a holder for a tension roller of a conveyor, for example, as shown in FIG.
0, mounting plates 91, 91 bolted to the conveyor frame CF, and tension adjusting bolts 92. In this case, the back wall 90a of the main body 90 is provided.
A long hole 93 into which the end of the shaft portion 81 of the roller 8 is inserted is formed.

[0003] As shown in FIG.
The roller 8 is held by inserting the portion between the upper and lower flat surfaces 81a, 81a of the shaft portion 81 between the upper and lower hole forming wall surfaces 93a, 93a of the long hole 93. You can only move along. The roller 8 used for this type of holder is
The roller section 80 is configured to be externally rotatable around the shaft section 81 so as to be freely rotatable forward and backward.

Therefore, when the take-up roller holder is used, the tension of the conveyor belt can be easily adjusted by adjusting the screwing amount of the tension adjusting bolt 92.

[0005] However, in the case of the holder having the above structure, when it is necessary to remove the roller for maintenance or the like, the pair of holders bolted to the conveyor frame CF must be removed. In addition, operations such as bolting when returning to the original state were very troublesome. Further, depending on the structure of the conveyor, the above maintenance may not be possible unless the entire periphery of the drive unit is disassembled.

[0006]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a holder for a tension roller of a conveyor capable of easily attaching and detaching a roller for applying tension to a conveyor belt.

[0007]

Means for Solving the Problems The present invention comprises a subject 1 and
A holding portion 3 having a screw rod 2 provided on the main body 1 so as to be freely rotatable in the forward and reverse directions in a horizontal posture, and a slit 30 attached to the screw rod 2 in a screw-paired state and into which the shaft portion 50 of the roller 5 is inserted. And a rotation stopping means 4 for stopping the rotation of the holding unit 3, and a tension roller holder for a conveyor, wherein the holding unit 3 is moved in the longitudinal direction of the screw bar 2 by rotating the screw bar 2. And the slit 30
Is provided with a vertical hole 30a opening to the lower side of the holding portion 3 and a horizontal hole 30c continuous with the vertical hole 30a.
0 is inserted from the lower opening of the vertical hole 30a and the horizontal hole 3
It is possible to reach the end portion of 0c.

Here, this tension roller holder is used as follows.
Removal is performed as described below. The roller holder 3 is attached to the pair of conveyor frames constituting the conveyor in such a manner that the main body 1 is attached, and the two roller holders 3 are opposed to each other. The shaft 50 of the roller 5 is inserted from the lower opening of the vertical hole 30a to reach the end of the horizontal hole 30c. By rotating the screw rod 2 forward, the holding portion 3 is moved in a direction in which the shaft portion 50 of the roller 5 is pressed by the end portion of the horizontal hole portion 30c, and the roller 5 is pressed against the conveyor belt (tension is applied to the conveyor belt). Do). When the roller 5 needs to be removed, the screw bar 2 is rotated in the reverse direction, and the holding unit 3 is moved in a direction in which the end of the lateral hole 30c and the shaft 50 of the roller 5 can be separated. Further, when the holding portion 3 is sufficiently moved by rotating the screw rod 2 in the reverse direction, the screw rod 2 moves from the vertical and horizontal hole portion 30c to the vertical hole portion 30a.
It can be moved up to. In this state, if the shaft 50 is removed from the opening of the vertical hole 30a, the roller 5 can be removed from the roller holder.

As described above, it is apparent that the use of the tension roller holder makes it easy to attach and detach the roller for applying tension to the conveyor belt.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a belt conveyor BC having tension roller holders T according to an embodiment of the present invention.
In this tension roller holder T, two tension rollers 5 are held. In addition, in FIG. 1, the code | symbol R is a roller, code | symbol CF is a conveyor frame, code | symbol B is a conveyor belt, code | symbol F is a leg part,
Symbol M is a drive roller.

As shown in FIGS. 2 and 3, a holder T of the tension roller is provided with a main body 1 mounted on a conveyor frame CF and two screws provided on the main body 1 in a lateral posture so as to be freely rotatable in the forward and reverse directions. It comprises a rod 2, a holding part 3 attached to each screw rod 2 in a screw pair state, and a rotation stopping means 4 for stopping the rotation of the holding part 3, and by rotating the screw rod 2, the holding part 3 Move in the length direction of the screw rod 2.

As shown in FIGS. 1 to 3, the main body 1 includes a rectangular plate 10, a horizontal piece 11 standing upright from a horizontal side of the plate 10, and a vertical piece 12 standing upright from a vertical side of the plate 10.
And a bracket 13 attached to the plate 10 and having a U-shaped cross section, and a bracket 14 attached to the plate 10 and having an L-shaped cross section.

As shown in FIGS. 2 and 3, the screw rod 2 is disposed so as to bridge between the vertical piece 12 and the bracket 13, and is rotated to a portion protruding from each vertical piece 12 to the outside. An operation unit 20 is provided. As shown in FIG. 2, a nut-shaped stopper 21 is fixed to the screw rod 2 so that the screw rod 2 does not come off from the main body 1.
The lock nut 22 is screwed into the screw rod 2 in order to prevent inadvertent rotation.

As shown in FIGS. 3 and 4, the holding portion 3 has a U-shaped cross section composed of opposed side walls 3b, 3b and a front wall 3a connecting these walls. As described above, the screw rod 2 is attached to the screw rod 2 in a threaded pair state so as to penetrate the lateral walls 3b, 3b.

On the front wall 3a, as shown in FIGS.
A slit 30 into which the shaft portion 50 of the roller 5 is inserted and held is formed. As shown in FIGS. 4 and 5, the slit 30 has a vertical hole portion 30 a opened to the lower side and the vertical hole portion 3.
0a, and a hole 30b for posture change between the vertical hole 30a and the horizontal hole 30c. Here, the shaft portion 50 of the roller 5 is moved from the lower opening portion of the vertical hole portion 30a to the end portion of the horizontal hole portion 30c along the path from the lower opening portion to the attitude conversion hole portion 30b according to the locus shown in FIG. And can be taken out by the reverse route.

As shown in FIG. 4, a screw hole 31 into which the above-mentioned screw rod 2 is screwed, and a through-hole into which a round bar 40 which is a component of the rotation stopping means 4 described later is inserted into the lateral wall 3b. 32 are formed.

As shown in FIGS. 2 and 3, the rotation stopping means 4 inserts a round bar 40 extending between the vertical wall 12 and the bracket 14 into a through hole 32 formed in the lateral wall 3b of the holding portion 3. It is configured to do so.

Since the conveyor BC has the above configuration,
By rotating the rotation operation unit 20, the holding unit 3 can be moved along the screw rod 2, and the tension acting on the belt can be adjusted. Also, the holding unit 3
Is moved sufficiently to approach the rotary operation unit 20,
The shaft portion 50 of the roller 5 can be moved along the locus shown in FIG. 5, and the roller 5 can be removed very easily. Similarly, the roller 5 can be easily attached. Further, the roller 5 can be attached and detached without disassembling the driving source including the driving roller M.

Although the tension roller holder of the above embodiment holds two tension rollers 5, the invention is not limited to this. One tension roller may be held, and three tension rollers may be held. The above tension roller may be held.

[0021]

Since the present invention has the above configuration, the following effects are obtained.

Based on the contents described in the section of the means for solving the problems, it has been possible to provide a conveyor tension roller holder capable of easily attaching and detaching a roller for applying tension to the conveyor belt.

[Brief description of the drawings]

FIG. 1 is a front view schematically showing a belt conveyor having a tension roller holder according to an embodiment of the present invention.

FIG. 2 is a front view showing a main part of a holder of the tension roller.

FIG. 3 is a perspective view showing a main part of a holder of the tension roller.

FIG. 4 is a perspective view showing a holding portion constituting a holding member of the tension roller.

FIG. 5 is a front view showing a holding portion constituting the holding member of the tension roller, and showing a relationship between a slit formed in the holding portion and a shaft portion of the roller.

FIG. 6 is a perspective view showing a conventional tension roller holder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Screw bar 3 Holding part 4 Rotation stopping means 5 Roller 30 Slit 30a Vertical hole part 30c Horizontal hole part 50 Shaft part

Claims (2)

[Claims] 1. A main body (1), a screw rod (2) provided on the main body (1) so as to be rotatable in forward and reverse directions in a horizontal posture, and a roller attached to the screw rod (2) in a screw-paired state and a roller. (5) a holding part (3) having a slit (30) into which the shaft part (50) is inserted, and a rotation stopping means (4) for stopping rotation of the holding part (3); A tension roller holder for a conveyor, wherein the holding part (3) is moved in the length direction of the screw rod (2) by rotating (2), wherein the slit (30) is provided in the holding part (3). )
A vertical hole (30a) opened to the lower side of the vertical hole (3a);
0a) and a horizontal hole portion (30c) continuous with the shaft portion (50) is inserted from the lower open portion of the vertical hole portion (30a) to reach the end of the horizontal hole portion (30c). A tension roller holder for a conveyor, wherein 2. The slit (30) has a vertical hole (30a).
A hole for posture change (30b) between the hole and the horizontal hole (30c)
The tension roller holder for a conveyor according to claim 1, characterized in that: