RU13087U1 - BOWL REDUCER - Google Patents

Abstract

A pelletizer containing a bowl with its rotation drive, a bed, a bowl tilt mechanism and a cleaning device, characterized in that the bowl is mounted directly on the output shaft of the planetary gearbox, and the bowl rotation drive motor is mounted on the planetary gear housing and kinematically connected to its input stage bevel gear.

Description

BOWL REDUCER

The utility model relates to equipment for the production of pellets from enriched ore materials in the ferrous, non-ferrous metallurgy and chemical industry.

A bowl pelletizer is known for producing raw pellets from finely divided ore materials containing a 1-cup bowl, a support with drives installed on it, a bed, a tilt mechanism for the bowl and a device for cleaning the bottom and side of the bowl from excessively adhering material and for forming a garrison to wear the bowl out of wear. (The device is taken as a prototype) (1).

The rotation of the bowl is carried out through a bevel-zyushndrichesky reducer, on a low-speed shaft of which a gear is mounted, forming an open crown gear pair with the crown of internal gearing of the bowl.

The main disadvantages of the swedish construction include:

- laborious manufacture of a split ring gear of large diameter (up to 7000 mm);

-work (yumkum with &} hands and adjustment of the open gear by changing the position of the heavy gear;

- the availability of special lubrication stations for lubricating the bearings of the bowl bearings and open gear gear;

- Pelletizer vibration caused by open gears as it is $ gansua;

.rgvv1 / 04

-reduction about pelletizer productivity due to vibration of its parts;

-increased wear of the open gear from inevitable pollution with abrasive material;

-high complexity of replacing a worn open gear.

These shortcomings stimulated the search for new technical solutions.

The technical result of the proposed utility model is to increase the efficiency rotation drive due to the elimination of dynamic loads and vibration caused by increased abrasive wear of the open gearing.

This problem is solved by better manufacturing gears while improving lubrication due to the fact that in the pelletizer bowl containing the bowl with the drive of its rotation, the bed, the tilt mechanism of the bowl and the cleaning device, the bowl is mounted directly on the output shaft of the planetary gearbox, and the electric motor the bowl rotation drive is mounted on the planetary gear housing and is kinematically connected to its input stage by a bevel gear.

1, figure 1 shows a bowl pelletizer. The pelletizer consists of a JS bowl 1, fixed rigidly to the output shaft of the planetary gear 2. The planetary gear is mounted in a frame 3, pivotally mounted on the bed 4. The input high-speed gear stage is connected to a vertically mounted electric motor 5 through a bevel gear 6, built-in

into gear 2. The housing of gear 2 is pivotally connected to the tilt mechanism 7 of the pelletizer. The second end of the tilt mechanism is pivotally mounted on the bed 4. The oil pump integrated in the gearbox delivers oil from the gearbox oil bath to lubricate the bearings of the output vazh. On the frame 3 there is fixed a device 8 for cleaning the bottom and sides of the bowl from adhering material and a garb is formed for wear of the bowl from the bowl.

The rotation of the bowl mounted on the output shaft of the gearbox is carried out from the electric motor through a bevel gear and planetary gears of the gearbox.

The device will melt as follows.

A mixture of otk expanded ore materials is continuously fed into the pelletizer bowl.

During rotation of the bowl inclined to the horizon in its lower sector, the charge fed to the pelletizer constantly rolls. Due to the constant rolling and mixing of the mixture, pellets are formed from it round into pellets, which, having reached their optimum size of 8-20 mm, are transferred through the side of the bowl and enter the next redistribution.

By adjusting the rotational speed of the bowl and the angle of its inclination, optimal pelletizing performance and the required quality of pellets are established.

Excessive material adhering to the bottom and sides of the bowl is removed by the device for cleaning the bottom and sides of the bowl, forming a relatively smooth layer of small thickness of the adhering material (skull), which protects the bowl from wear.

 // f ///

The proposed design has the highest reliability in operation, completely eliminates vibration, significantly reduces maintenance and repair costs, increases machine performance.

The advantage of the utility model is more efficient pelletizer operation due to a better drive design that virtually eliminates bowl vibration.

In addition, the lubrication conditions of the bowl rotation drive are improved due to the inclined placement of the gear housing, in which all gears fall under the level of the oil bath.

The cost of maintenance and repair of the pelletizer is also reduced.

Sourse of information:

1.M.Kh. Fastovsky et al. Mechanical and transport equipment of sinter plants, Shyukva, 1 Tallurgy,

2.A.s. 1129479.

3.A. with. 1245835.

4.A. with. B07199.

- 4 FORMULAS

Claims (1)

A pelletizer containing a bowl with its rotation drive, a bed, a bowl tilt mechanism and a cleaning device, characterized in that the bowl is mounted directly on the output shaft of the planetary gearbox, and the bowl rotation drive motor is mounted on the planetary gear housing and kinematically connected to its input stage bevel gear.