RU211018U1 - DEVICE FOR LUBRICATION OF OPEN GEARS - Google Patents

Abstract

The proposed utility model relates to mechanical engineering and can be used to supply lubricant to the teeth of open gears and to the teeth of rack and pinion gears with a lubricating false gear. EFFECT: uniform application of lubricant as a "third body" over the entire surface of an open gear tooth in an amount sufficient to create an oil film of sufficient thickness necessary to reduce shock loads that occur during operation of the gear engagement. The device for lubricating open gears includes a lubrication pump communicated with the oil pipeline and a hollow lubricating false gear mounted on the mounting bracket, the side surfaces of the teeth of the lubricating false gear are ribbed, provided with holes communicated with a container located inside the lubricating false gear, in this case, the lubricating false gear and the container are made with the possibility of rotation, and the lubricating false gear is made of an elastic material. The use of false gear lubrication is more environmentally friendly compared to the drip method and the spray method, since the amount of lubricant is supplied only in the amount that is needed, there is no loss and, as a result, environmental pollution. Compared to a lubricating wedge, the need to use additional components (grease distributors, etc.) is also reduced.

Description

The proposed utility model relates to mechanical engineering and can be used to supply lubricant to the teeth of open gears and to the teeth of rack and pinion gears with a lubricating false gear.

Lubrication methods such as drip, spray and lubrication wedge are known. The use of false gear lubrication is more environmentally friendly compared to the drip method and the spray method, since the amount of lubricant is supplied only in the amount that is needed, there is no loss and, as a result, environmental pollution. Compared to a lubricating wedge, the need to use additional components (grease distributors, etc.) is also reduced, and the design of the teeth of the lubricating false gear allows the lubricant to be applied over the entire contact surface with the teeth by an open gear, which significantly improves the quality of lubrication.

A device for lubricating open gears is known, including a hollow gear with an oil reservoir connected to the surface of the gear teeth by radial holes, a cylinder with longitudinal ribs-blades is located in the reservoir concentrically with the gear, transverse grooves and longitudinal grooves are made on the gear teeth, interconnected, auxiliary the lubricating gear is placed in the body of the device, to which a rod with a spring is attached, having bushings located in the fixed housing and allowing the lubricating device to rotate under the action of a torque, the spring presses the teeth of the lubricated gear over all surfaces into the toothed wheel cavities (No. 2040722, F16H55/04, op. 25.07.1995).

The disadvantage of the known device is that this device is designed to supply only liquid oil and does not provide for the use of greases. In this case, when the rod is opened, the oil should fall by gravity onto the gear teeth, with greases it is necessary to create additional pressure, which is impossible in this design. The presence in the design of a mechanical element, a rod with a spring, reduces the reliability and durability of the entire structure, in contrast to the proposed utility model.

Known gear lubricator, including a lubricating element in the form of a gear, the teeth of which are made of a pressed lubricant, the gear is in passive engagement with one of the gears of the gear and tangentially pressed against the side surfaces of its teeth, the lubricating gear is mounted on a drum mounted on axis, a brake shoe is attached to the outer perimeter of the drum, mounted on a console oriented in the plane of rotation of the gear and by means of a hinge mounted on the gear housing, the console is equipped with a spring pressing the console with the shoe to the drum (No. 2576218, F16H57 / 04, op. 27.02. 2016 Bull. No. 6).

Compressible lubricants are of limited use and are not suitable for large and heavily loaded open gears, in particular a mining shovel turntable. In addition, gears, the teeth of which are made of pressed lubricant, unlike the proposed utility model, are highly sensitive to sudden changes in temperature and humidity, which leads to the appearance of numerous internal cracks and, as a result, their delamination and splitting.

The objective of the proposed utility model is to increase the service life of the gearing of an open transmission or rack and pinion.

EFFECT: uniform application of lubricant as a "third body" over the entire surface of an open gear tooth in an amount sufficient to create an oil film of sufficient thickness necessary to reduce shock loads that occur during operation of the gear engagement.

The specified technical result is achieved in that the device for lubricating open gears includes a lubrication pump communicated with the oil pipeline and a hollow lubricating false gear mounted on the mounting bracket, the side surfaces of the teeth of the lubricating false gear are ribbed, provided with holes communicated with the container, placed inside the lubricating false gear, while the lubricating false gear and the container are made with the possibility of rotation, and the lubricating false gear is made of an elastic material.

Making the teeth of the lubricating false gear ribbed and with holes allows the lubricant to be applied over the entire contact surface with an open gear.

The use of a lubricating false gear does not provide for the use of equipment to create the necessary air pressure in the oil line.

The utility model is illustrated by drawings, where in Fig. 1 shows a diagram of the device, Fig. 2 - lubricating false gear, in Fig. 3 is a side view of the lubricating false gear, where:

1 - lubricant pump,

2 - oil pipeline,

3 - teeth of an open gear,

4 - lubricating false gear,

5 - holes,

6 - capacity,

7 - mounting bracket.

The device consists of a lubrication pump 1 of an automatic lubrication system or a manual lubrication pump, an oil line 2 (high pressure pipe or hose), a hollow lubricating false gear 4 mounted on a mounting bracket 7. The lubricating false gear 4 is made of an elastic material, for example, polyurethane , fluoroplastic or organosilicon polymer (silicone), which allows, during its rotation, to achieve tight contact of the tooth of the lubricating false gear 4 with the surface of the tooth of the open gear 3. The main condition for materials for such gears should be small residual deformations, the ability to restore to their original dimensions after elimination load retaining its original shape at temperatures from -60°C to +60°C and in conditions of sudden changes in humidity. Tight contact ensures that a sufficient amount of lubricant supplied by the lubricant pump 1 to the lubricating false gear 4 is applied to the surface of each individual tooth of the open gear 3. Lubrication is carried out according to the programmed program in the control of the lubricant pump 1, the operating time is the pause time. This time is determined for each gear individually based on the amount of lubricant supplied by the pump per unit time.

The side surface of each tooth of the false gear 4 is ribbed from the lower part of the tooth to its top. Holes 5 are located on each tooth of the lubricating false gear 4, communicating with the container 6 located in the cavity of the false gear 4, which allows you to change the direction of rotation and use it to supply lubricant to the teeth of the rack and pinion. The container 6 can be made in the form of a metal cylinder and is rotatable together with the lubricating false gear 4.

The device works as follows.

Lubrication through the oil pipeline 2 is supplied by an automatic lubrication pump 1 or a manual pump to the central part of the lubricating false gear 4. On both sides of each tooth of the lubricating false gear 4 there are holes 5 communicating with the container 6 rotating together with the false gear 4 inside the central part false gears 4. Lubrication under pressure is injected into the container 6 inside the central part of the false gear 4, and then through the holes 5 gets to the outer side of the tooth of the false gear 4, and in contact with the tooth of the open gear 3 applies lubricant to its surface. The rotation of the lubricating false gear 4 around its axis is ensured by close contact with the rotating open gear 3. The lubrication pump 1 is switched on in accordance with the set work program and pumps the lubricant into the oil line 2. Lubricant under pressure is injected into the internal cavity of the freely rotating lubricating false gear 4. Through the internal holes of the lubricating false gear 4, the lubricant enters the outer side of the teeth of the false gear 4. When the teeth of the false gear 4 are in close contact with the teeth of the open gear 3 or the teeth of the rack and pinion, the lubricant is transferred to each of the teeth in turn . The rotation of the gear of the open gear 3, due to close contact with the lubricating false gear 4, ensures its rotation and thereby lubrication of all the teeth of the open gear 3 or the teeth of the rack and pinion. After the completion of the cycle of operation of the lubricant pump 1, the supply of lubricant to the lubricating false gear 4 stops until the next cycle of the lubricant pump 1 begins. full lubrication of all teeth of open gear 3 or rack and pinion. The ribbed design of the teeth of the lubricating false gear 4, made taking into account the number of teeth, their module, deviation from the axis, the width of the gear and the speed of rotation of the main gear, allows the lubricant to be applied over the entire contact surface with an open gear train.

The use of false gear lubrication is more environmentally friendly compared to the drip method and the spray method, since the amount of lubricant is supplied only in the amount that is needed, there is no loss and, as a result, environmental pollution. Compared to a lubricating wedge, the need to use additional components (grease distributors, etc.) is also reduced.

Claims (1)

A device for lubricating open gears, including a lubrication pump connected to the oil pipeline, and a hollow lubricating false gear mounted on the mounting bracket, the side surfaces of the teeth of the lubricating false gear are ribbed, provided with holes communicated with a container located inside the lubricating false gear , while the lubricating false gear and the container are made with the possibility of rotation, and the lubricating false gear is made of an elastic material.

Images