CN102135407B

CN102135407B - Method for detecting coaxiality of trunnions of steel ladle

Info

Publication number: CN102135407B
Application number: CN201010618995XA
Authority: CN
Inventors: 季伟; 王凤良
Original assignee: WUXI JULI HEAVY INDUSTRY Co Ltd
Current assignee: WUXI JULI HEAVY INDUSTRY Co Ltd
Priority date: 2010-12-31
Filing date: 2010-12-31
Publication date: 2012-08-08
Anticipated expiration: 2030-12-31
Also published as: CN102135407A

Abstract

The invention provides a method for detecting coaxiality of trunnions of a steel ladle, and the detection method is simple and has high detection accuracy. The method is characterized by comprising the following steps: (1) removing a boring-milling cutter head from a cutter rest of a floor type boring and milling machine, and installing a dial indicator on the cutter rest; (2) horizontally placing a steel ladle on a platform of the floor type boring and milling machine, and adjusting the position of the steel ladle on the floor type boring and milling machine; (3) moving the cutter rest of the floor type boring and milling machine forwards and backwards, selecting four points A, B, C and D on the bottom surfaces of trunnions at two sides of the steel ladle, measuring the four points and recording readings by a measuring head of the dial indicator, and performing subtraction on the maximum value and the minimum value in the four readings to obtain a difference value X; (4) moving the cutter rest of the floor type boring and milling machine forwards and backwards, respectively selecting four points E, F, G and H on horizontal sides of the trunnions at the two sides of the steel ladle, measuring the four points and recording readings by the measuring head of the dial indicator, and performing subtraction on the maximum value and the minimum value in the four readings to obtain a difference value Y; and (5) calculating the maximum offset value C of the coaxiality of the trunnions of the steel ladle according to the Pythagorean theorem C<2>=X<2>+Y<2>, wherein the coaxiality of the trunnions does not meet the design requirement if the value C is more than a design value, and the coaxiality of the trunnions meets the design requirement if the value C is not more than the design value.

Description

A kind of detection method of molten metal ladle trunnion right alignment

Technical field

The present invention relates to metallurgical equipment detection technique field, be specially a kind of detection method of molten metal ladle trunnion right alignment.

Background technology

Traditional molten metal ladle trunnion right alignment detects and is mostly to detect through level meter; Though its testing process is simpler; But the precision of levelness that level meter itself places, scale influences and the error of testing staff's reading because its testing process receives, and its poor accuracy, accuracy of detection are low.

Summary of the invention

In order to address the above problem, the invention provides a kind of detection method of molten metal ladle trunnion right alignment, its method is simple, and accuracy of detection is high.

Its technical scheme is such, it is characterized in that: it may further comprise the steps:

1, the boring and milling cutter head on the floor-type milling & boring machine knife rest is pulled down, clock gauge is installed on knife rest;

2, the molten steel jar is placed horizontally on the platform of floor-type milling & boring machine, measures the horizontal range of reference block on the molten steel tank skin, the position of adjustment molten steel jar on floor-type milling & boring machine;

3, move the front and back position of floor-type milling & boring machine knife rest; On the bottom surface of molten steel jar both sides gudgeon, choose A, B, C, four points of D respectively; The clock gauge gauge head is measured also record reading of four points, and the maximal value in said four readings and minimum value subtracted each other obtains difference X;

4, move the front and back position of floor-type milling & boring machine knife rest; On the horizontal side of molten steel jar both sides gudgeon, choose E, F, G, four points of H respectively; The clock gauge gauge head is measured also record reading of four points, and the maximal value in four readings and minimum value subtracted each other obtains difference Y;

5, according to Pythagorean theorem C ²=X ²+ Y ², calculate molten metal ladle trunnion right alignment maximum deflection difference value C, if C value is greater than design load, then the gudgeon right alignment does not meet designing requirement, as if the C value be less than or equal to design load then the gudgeon right alignment adhere to specification.

It is further characterized in that: said X value is the maximum deflection difference value of molten metal ladle trunnion vertical direction; Said Y value is a molten metal ladle trunnion level maximum deflection difference value longitudinally.

Use the inventive method that the molten metal ladle trunnion right alignment is detected; Its beneficial effect is: its through floor-type milling & boring machine with clock gauge measure molten steel jar both sides gudgeon level vertically, position degree maximum difference on the vertical direction; Utilize Pythagorean theorem to calculate both sides gudgeon coaxiality deviation; Its method is simple, adopts clock gauge to measure and can improve accuracy of detection and preparation greatly.

Description of drawings

Fig. 1 is the main TV structure synoptic diagram during the measured X value in the inventive method;

Fig. 2 is the plan structure synoptic diagram when measuring the Y value in the inventive method.

Embodiment

See Fig. 1 and Fig. 2, the boring and milling cutter head on the floor-type milling & boring machine knife rest is pulled down, clock gauge is installed on knife rest; Molten steel jar 4 is placed horizontally on the platform 2 of floor-type milling & boring machine, measures the horizontal range of reference block 1 on the molten steel tank skin, the position of adjustment molten steel jar on floor-type milling & boring machine; Move the front and back position of floor-type milling & boring machine knife rest; On the bottom surface of molten steel jar both sides gudgeon 3, choose A, B, C, four points of D respectively; The clock gauge gauge head is measured four points and record reading; And the maximal value in said four readings and minimum value subtracted each other obtain difference X, this difference is the maximum deflection difference value of molten metal ladle trunnion vertical direction; Move the front and back position of floor-type milling & boring machine knife rest; On the horizontal side of molten steel jar both sides gudgeon, choose E, F, G, four points of H respectively; The clock gauge gauge head is measured four points and record reading; And the maximal value in four readings and minimum value subtracted each other obtain difference Y, this difference Y is a molten metal ladle trunnion level maximum deflection difference value longitudinally; According to Pythagorean theorem C ²=X ²+ Y ², calculate molten metal ladle trunnion right alignment maximum deflection difference value C, if C value is greater than design load, then the gudgeon right alignment does not meet designing requirement, as if the C value be less than or equal to design load then the gudgeon right alignment adhere to specification.

Claims

1. the detection method of a molten metal ladle trunnion right alignment, it is characterized in that: it may further comprise the steps:

(1) the boring and milling cutter head on the floor-type milling & boring machine knife rest is pulled down, clock gauge is installed on knife rest;

(2) the molten steel jar is placed horizontally on the platform of floor-type milling & boring machine, measures the horizontal range of reference block on the molten steel tank skin, the position of adjustment molten steel jar on floor-type milling & boring machine;

(3) front and back position of mobile floor-type milling & boring machine knife rest; On the bottom surface of molten steel jar both sides gudgeon, choose A, B, C, four points of D respectively; The clock gauge gauge head is measured also record reading of four points, and the maximal value in said four readings and minimum value subtracted each other obtains difference X;

(4) front and back position of mobile floor-type milling & boring machine knife rest; On the same level height of the side of molten steel jar both sides gudgeon, choose E, F, G, four points of H respectively; The clock gauge gauge head is measured also record reading of four points, and the maximal value in four readings and minimum value subtracted each other obtains difference Y;

(5) according to Pythagorean theorem C ²=X ²+ Y ², calculate molten metal ladle trunnion right alignment maximum deflection difference value C, if C value is greater than design load, then the gudgeon right alignment does not meet designing requirement, as if the C value be less than or equal to design load then the gudgeon right alignment adhere to specification.

2. the detection method of a kind of molten metal ladle trunnion right alignment according to claim 1 is characterized in that: said X value is the maximum deflection difference value of molten metal ladle trunnion vertical direction; Said Y value is a molten metal ladle trunnion level maximum deflection difference value longitudinally.