SU963931A1 - Belt conveyer support roller - Google Patents

Description

(5) ROLLER OF BELT CONVEYOR

one

The invention relates to the field of conveyor equipment, in particular to rollers of belt conveyors.

Known roller belt conveyor, comprising, housing, axle, bearings with bushings and sealing elements M 1

The disadvantage of it is the complexity of the design.

Another roller is known, including a Q housing, an axle, bearings with bushings pressed into the housing, and sealing rings 2J.

The disadvantage of this roller is the low reliability of its work, because if the casing of the roller supports is made of metal, then from the outside it is not protected from the corrosive effects of the environment. If it is made of plastic or wood plastic,. 20 case is not strong enough or excessively material. In addition, the durability of the assembly. The belt is small, since the rings of porous material are also subject to friction and rapid wear in the radial direction, as are the bearings. Dust, dirt, water, and other substances that contaminate the lubricant and cause the roller carrier to accelerate wear get into the gaps formed during wear.

The object of the invention is to increase the reliability of the roller.

This goal is achieved by the fact that the sleeves are made with the protrusions tightly fitted to the body and are provided with oil-tight washers located between the sealing rings and bearings.

Figure 1 shows the video; on Fig.2raz A-A in Fig.1.

The roller contains a housing 1, made in the form of a rigid pipe 2 of nonmetallic material, bearing on itself a thermoplastic lining 3. The bearings 4 are mounted on an axis 5 through: bushing 6, pressed into the housing and tightly interconnected to it through sleeves 7. The sleeves have a cavity 8 to accommodate sealing rings 9 of porous material and lubricant. A protective washer 10 of an impermeable lubricant material is placed between the rings and bearings. With its end surfaces, the washer contacts the ends of the bearing. The rings press the washer against the bearing, as a result of which the latter form the mechanical contact seal of the bearing. On the inner side, the bearing is equipped with a sealing ring 11 made of porous material. To increase the durability of the roller, its internal cavity can be filled with grease 12. Parts of the roller t can be made of various materials. Glass, porcelain, ceramic, wood, wood and paper pipes can be used as rigid body pipes.

Polyethylene, polyurethane, etc. are used as thermoplastic linings. The thermoplastic layer protects the roller from shock loads. The axis of the roller is made of metal. The roller friction unit is made on the basis of a ball bearing. However, plain bearings or tapered axle bearings may be used. Sleeves 6 "are made of corrosion resistant materials. The protrusions on the sleeves are integral with the sleeves by the casting method. The lugs have a variable profile with smart) 5 stitches to the pipe. The outer diameter of the protrusions is about 1-3 mm larger than the internal diameter of the pipe. This is necessary to tightly fit the housing with the sleeve installed in the pipe with a tension, as well as to compensate for tolerances on the internal diameters of the pipes. The sealing rings are made of polyurethane foam, porous polyethylene or polypropylene. O-rings are designed to protect the friction units from

ingress of contaminants and uniform supply of lubricant to the friction units and reduction of its leakage through the micro gaps, which are formed after a long operation of the friction unit. Sealing rings 9 are made with an outer diameter smaller than the internal diameter of the cavity in sleeve 8. Due to this, a lubricant cavity is created between the rings and the sleeve, which, during operation of the friction unit, saturates the porous rings, providing increased durability of the sealing unit. Protective washer 10 is made of polycaproamide or high density polyethylene. The washers are pressed against the bearings by porous rings 9, the elastic deformation of which is accumulated during the assembly of the friction unit. The protection washer 10 is loosely mounted with respect to the sleeve 8 and the axis 5- The sealing ring 1 1 made of a porous material with a tension is installed relative to the pipe and the axis. This embodiment improves the reliability of the video.

Claims (2)

1. The patent of Germany No. 2055603, class, 81 e 10, published. 197. 2. USSR author's certificate number 388975, cl. In 65 G 39/09, 1971 (prototype).