SU1377553A1 - Arrangement for determining load on supports of rotating furnace - Google Patents

Abstract

This invention relates to the technical diagnostics of rotary kilns and can be used in the cement, chemical and metallurgical industries. The aim of the invention is to improve the accuracy of determining loads on the supports of the rotary kiln. A device for determining loads on supports of a rotary knuckle with Nl

Description

Fi8.1

3. 1

The furnace contains a band I, a support roller 2 with bearing housings 4 and a frame 5, as well as devices for unloading the support rollers 2 and calibrating the stiffness of the housings 4. A device for calibrating the rigidity of the housings 4 of the bearings is designed as fixed on the base of the body 4 of the bracket 9 with a hydraulic jack 10 and rack 7 with indicator 8, and the axis

77553

 the symmetry of the hydraulic cylinder 10 and the longitudinal axis of the support roller 2 lie in the same horizontal plane. The load on the support is determined by the stiffness of the bearing housing and the values of their elastic deformations, which are determined as the difference of the position of the side surfaces of the 10 bearing housings in the loaded and unloaded states x 2 ill.

The invention relates to the diagnosis of the technical condition of a rotary kiln and can be applied in the cement, chemical and metallurgical industries.

The purpose of the invention is to improve the accuracy of determining loads on the supports of the rotary kiln.

Fig. 1 schematically shows a device for determining loads on the support of a rotary kiln; Fig. 2 illustrates the distribution of loads on the weight of the furnace body on the rollers.

The band 1 rests on the support rollers 2. The rollers 2 with cups 3 are installed in the bearing housing 4, which are fixed to the frame 5, the stand 6 is attached to the base of the housing 4 with indicator 7, as well as the bracket 8 with hydraulic jack 9 and pressure gauge 10. The hydraulic jack 9 is connected with hydraulic station 11 o On the rod of the hydraulic cylinder 9 is installed L-shaped stop 12, and on the housing 4 of the bearing - stop 13.

The principle of operation of the device is as follows, and

Raising the band 1 until a gap appears between it and the roller 2, according to the indicator 7 it determines the total elastic deformation of the housings 4 by the bearings, alev fnp. 1pr- Then, lowering the band 1 onto the rollers 2, calibrate the rigidity of the bearing housings 4, Dp. This creates a hydraulic jack 9 of the force S directed against the horizontal component of the load Pij, and at the same time the indicator 7 fixes the values of the elastic deformations of the housing 4 at each change of this force

Dividing the force S by the amount of elastic deformation., Corresponding to this force, the coefficient of rigidity of the body 4 is found.

G - 1

  L

The rigidity value of the bearing housing 4 is found as the arithmetic average of the stiffness C-, i.e.

one

  s,.

or

1 s

 1LPO. This method determines the rigidity of all four bearing housings of each support (C, tnp C C der, - C).

. The magnitude of the load on the support is determined by the obtained stiffness of the bearing housings and the values of their elastic deformations, which are defined as the difference in the position of the side surfaces of the J-bearing of the bearing in the loaded and unloaded state. The value is determined by the dependence: - 0 G (C,

+ (s;

f

+ C, devL; "b-) ctgoi

-inp tnp C.rs,;,) ctg p.

In the proposed device, the rigidity of the bearing housing 4 is determined 5 without moving the roller 2, the bearing angle of the tire 1 on the roller 2 is maintained, the axis of the hydraulic cylinder 10 coincides with the axis Ja; the axis of the roller 2 lying in the horizontal plane,

Q that allows you to combine the action of force and back pressure

This design of the device provides an accurate determination of the rigidity of the bearing housing 4, since

g the measured deformation is proportional to the difference of the horizontal component of the load 7 and the force

back pressure S, i.e. the magnitude

p with r b.

Fi.g.2

Compiled by L. Petrova L.Pcholinska’s editor Tehred M. Morgental Corrector T. Kolb

Order 4100

Circulation 531

VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5

Subscription

Claims (1)

Claim A device for determining the loads on the supports of a rotary kiln, containing a bandage, support rollers with bearing housings, a frame and a device for calibrating the stiffness of the bearing housings, made in the form of a hydraulic jack and mounted on the base of the bearing housing, a stand with an indicator, characterized in that , in order to improve the accuracy of determining the loads on the supports, the bracket with a hydraulic jack is fixed on the base of the bearing housing, and the axis of symmetry of the hydraulic jack is placed in one horizontal gloss with the longitudinal axis of the support roller.