RU63713U1 - DEVICE FOR APPLICATION OF MOLYBDENE DISULFIDE ON RUBBER PRODUCTS - Google Patents

Abstract

The invention relates to devices for applying an antifriction coating to rubber products, for example, molybdenum disulfide (MoS ₂ ), for the operation of products at elevated temperatures, pressures and speeds, in aggressive environments. The proposed technical solution is aimed at environmental friendliness and simplification of the technical process of applying anti-friction coating to rubber products with an aqueous solution of molybdenum disulfide (MoS ₂ ), to obtain a more uniform coating of the product due to the fact that the device for applying anti-friction coating to rubber products contains a rotating drum driven by a gearbox in which backfilled rubber products and fed an aqueous solution of molybdenum disulfide (MoS ₂₎ with the composition of MoS2: min 98,5% H20: 0,10-0,30% erastvorimye 0,10-0,60% Fe compounds: 0,10-0,50%. The axis of the drum is at an angle of 30 ° to the horizontal, the drums are placed in a sealed cylinder with a lid that eliminates the ingress of suspended matter (MoS ₂ ) into the atmosphere. The rotating drum is perforated with round holes in which a cylindrical container with perforation is installed during the working cycle, the perforation at the drum and the container is displaced and the aqueous solution (MoS ₂ ) does not flow out of the drum, at the end of the cycle, the perforation of the drum and cylindrical container is combined and the solution flows into a sealed cylinder and then through the tap to the receiving tank. The device has a rotary mechanism for changing the tilt of the cylinder during unloading and loading of products. Such an antifriction coating provides better sealing, reduces the friction coefficient, wear of contact surfaces, eliminates the adhesion of rubber products to metal and plastic, ensures smooth operation of the unit, both in rotational and translational motion without the use of grease. When operating rubber products using a grease, the grease dries out in the form of bumps and sagging, the o-rings lose their mobility, the tightness of the fuel wire connection is impaired, and the vehicle’s accident rate and fire hazard are increased. The device is environmentally friendly in that it does not use a solution of fluorine-containing surfactants in freon, but uses an aqueous solution of molybdenum disulfide (MoS ₂ ). The proposed device does not require additional equipment such as a refrigerator or heater, which reduces the cost and simplifies the process for applying a protective coating on rubber products.

Description

The invention relates to devices for applying an antifriction coating, in particular, molybdenum disulfide (MoS ₂ ) to rubber products, for the operation of products at elevated temperatures, pressures and speeds, in aggressive environments.

Known devices for applying a protective coating to rubber products SU 376256 A, 05/14/1973. SU 994295 A, 02/07/1983. SU 1475725 A1, 04.30.1989. SU 492312 A, 08.04 / 1976. RU 210369 C1, 01/27/1998. EP 0326032 A 2.02.08.1989. US 4386542 A, 09/01/1981. DE 3817560. US 4,386,542 A, 11/30/1989.

The closest to the claimed invention in technical essence is the "Device for applying a protective coating on rubber products" according to the patent of the Russian Federation No. 2144463 from 05.08.99, (7) IPC B 29 C 41/02, B 05 C 3/02 publ. 01/20/00, containing a bath, a perforated container mounted on it, a cover for sealing the bath, means for feeding and removing products from the container. The device is equipped with heaters for heating the coating material to a temperature of not more than 47.3 ° C, means for supplying compressed air with pressure reducing and distribution valves, refrigerators located on both sides of the bath to condense the coating vapor. The device is equipped with a means of supplying the coating material to the bath in the form of a 2% solution of fluorine-containing surfactants in freon and pipelines for discharge and supply of material.

The proposed technical solution is aimed at environmental friendliness and simplification of the technical process of applying anti-friction coating to rubber products with an aqueous solution of molybdenum disulfide (MoS ₂ ), to obtain a more uniform coating of the product due to the fact that the device for applying anti-friction coating to rubber products contains a rotating drum driven by a gearbox into which rubber products are poured and an aqueous solution of molybdenum disulfide (MoS ₂ ) is supplied with the composition

MoS2: min 98.5% H20: 0.10-0.30% Insoluble 0.10-0.60%

connections

Fe: 0.10-0.50%

The axis of the drum is at an angle of 30 ° to the horizontal, the drums are placed in a sealed cylinder with a lid that eliminates the ingress of suspended matter (MoS ₂ ) into the atmosphere.

The rotating drum is perforated with round holes in which a cylindrical container with perforation is installed, during the working cycle, the perforation at the drum and container is displaced and the aqueous solution (MoS ₂ ) does not flow out of the drum, at the end of the cycle, the perforation of the drum and cylindrical container is combined with the perforation and the solution flows into sealed cylinder and then through a tap to a receiving tank. The device has a rotary mechanism for changing the tilt of the cylinder during unloading and loading of products. Such an antifriction coating provides better sealing, reduces the coefficient of friction, wear of contact surfaces, eliminates the adhesion of rubber products to metal and plastic, ensures smooth operation of the unit, both in rotational and in translational motion without the use of lubricant. When operating rubber products using grease, the grease dries out in the form of bumps and sag, the o-rings lose their mobility, the tightness of the topline conduit connection is impaired, and the vehicle’s accident and fire hazard is increased. The device is environmentally friendly in that it does not use a solution of fluorine-containing surfactants in freon, but uses an aqueous solution of molybdenum disulfide (MoS ₂ ). The proposed device does not require additional equipment such as a refrigerator or heater, which reduces the cost and simplifies the process for applying a protective coating on rubber products.

The essence of the technical solution is illustrated by drawings, where

Figure 1 A device for applying molybdenum disulfide to rubber products General view.

Figure 1 shows a device for applying molybdenum disulfide to rubber products containing a sealed cylinder (1), a cover (2), a backlight (3), a window for visual observation (4), a container (5) with a pipeline (6) and a crane ( 7), a perforated rotating drum (8) inside which a cylindrical container with perforation (9) is installed, the axis of the gearbox (10) with an electric drive (11), platform (12), axis (13), frame (14), chain transmission (15 ), handle (16), crane (17), receiving tank (18).

The device operates as follows: fat-free rubber products (19) are loaded into a cylindrical container with perforation (9) which is installed in the perforated drum (8), when the drum and container are displaced relative to each other, overlap occurs, i.e. displacement or coincidence of the holes of the perforations of the drum and the container, which allows, if necessary, to hold the aqueous solution (MoS ₂ ) or pour it into the cylinder (1). The cylindrical perforated container (9) is displaced in such a way that it overlaps the perforation holes of the drum (8). The sealed cylinder (1) is closed by a cover (2), then the electric drive (11) is turned on and the gearbox axis (10) drives

rotation of the drum (8) and the container (9) with the loaded products (19). The valve (7) opens and an aqueous solution of molybdenum disulfide (MoS ₂ ) is supplied to the cylindrical container (9). After the work cycle, the uniformity of the coating is visually controlled through the window (4). The lid (2) opens and, by rotating the cylindrical container with perforation (9) relative to the drum (8), the perforation is combined and the aqueous solution of molybdenum disulfide (MoS ₂ ) is discharged into the cylinder (1) and then into the receiving tank (18). For a more thorough removal of the molybdenum disulfide solution (MoS ₂ ) from the products (19), the rotation of the drum (8) is switched on, at the end of these operations, the cylinder (1) is tilted down using the handle (16) and the rubber products with antifriction coating are poured into containers that further arrive at the packaging. The process is then repeated.

Claims (1)

A device for applying molybdenum disulfide to rubber products, comprising a housing, a perforated container mounted thereon, a sealing cap, characterized in that the device comprises a sealed cylinder equipped with a rotating perforated drum in which a cylindrical container is installed with perforation and when displaced relative to each other there is overlapping or coincidence of the holes of the perforations of the drum and the container, and the axis of the drum during the working cycle is inclined at an angle of 30 ° to the horizon and.