JPS592002Y2 - friction roller conveyor - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a friction roller conveyor in which a slip ring rotatably attached to a drive shaft is constantly pressed against the outer circumferential end of the conveyor roller.

In such a roller conveyor, power is transmitted between the drive shaft and the slip ring and between the slip ring and the conveyor roller through friction, so if oil enters the power transmission part, the coefficient of friction will fluctuate. This results in the disadvantage that the necessary power transmission cannot be achieved, and this disadvantage is most noticeable between the drive shaft and the slip ring, where oil is most likely to enter.

The purpose of this invention is to prevent oil from entering between the drive shaft and the slip ring.

In the present invention, the drive shaft is formed hollow, and a small hole communicating between the inside and outside of the hollow drive shaft is bored in the slip wheel contacting part of the hollow drive shaft.
The present invention is characterized in that an oil and fat detergent is sealed within the hollow drive shaft.

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

Reference numeral 1 indicates a hollow drive shaft rotatably supported by a bearing appropriately installed along the conveyor frame 2 on one side, 3 a receiver mounted at a constant pitch on the conveyor frame 2, and 4 a supporter 3.
and the shaft 5 installed between the conveyor frame 2' on the other side.
6 is a slip ring rotatably attached to the hollow drive shaft 1 facing the end outer circumferential portion of the conveyor roller 4; The shaft 5 is rotated so that the wheel 6 is always pressed.
A compression spring 8 is installed between the collar portion 5a of the conveyor roller and the inner ring of the bearing 4a of the conveyor roller, and 8 is a stop ring installed on the hollow drive shaft 1 to restrain the axial movement of the slip ring 6. Small holes 9 evenly drilled near the center of the slip ring contacting portion of the shaft 1 are each closed with a moisture-absorbing material (felt) 10.

A plug 11 is provided at each end of the hollow drive shaft 1, and an oil and fat detergent A is filled inside the plug.

The oil and fat detergent A is suitably a solvent emulsion type with high penetrating power.

In general, the wetting power of oil and fat detergents on metal surfaces is much greater than the wetting power of oil on metal surfaces, ie, the force that causes oil droplets to spread on the metal surfaces.

Therefore, in order to drive the conveyor roller, the hollow drive shaft 1 is driven by a motor, and the oil and fat detergent A inside it moistens the contact surface between the hollow drive shaft and the slip ring 6 through the small hole 9 by the action of centrifugal force. Since the oil and fat detergent that moistens the contact surface completely prevents the oil adhering to the hollow drive shaft 1 from entering, the frictional force between the hollow drive shaft 1 and the slip ring 6 is reduced due to the oil entry. There is no fear and the conveyor roller driving force by the slip wheel is stable.

In the illustrated embodiment, each small hole 9 is closed with a moisture-absorbing material 10 in order to provide a large resistance to the outflow of the oil and fat cleaning agent A from the small hole, thereby reducing consumption of the oil and fat cleaning agent.

[Brief explanation of drawings]

FIG. 1 is a plan view, FIG. 2 is a front view, and FIG. 3 is a sectional view taken along line XX of the main part in FIG. 1...Hollow drive shaft, 4...Conveyor roller, 6...Slip wheel, 9...Small hole, 10...Moisture absorbing material , A...Oil and fat detergent.

Claims (2)

[Scope of utility model registration request] (1) In a friction roller conveyor in which a slip ring rotatably attached to a drive shaft is constantly pressed against the outer circumference of the end of the conveyor roller, the drive shaft is formed hollow, and the slip ring of the hollow drive shaft comes into contact with the slip ring. 1. A friction roller conveyor characterized in that a small hole is formed in a portion thereof to communicate between the inside and the outside, and an oil and fat detergent is sealed in the hollow drive shaft. (2) Utility model registration The friction roller conveyor described in claim (1) in which the small holes are closed with felt or other moisture absorbing material.