SU145375A1 - Instrument for determining bending deformations in housings of rotary kilns - Google Patents

Description

Instruments are known for determining the bending deformations of the housings of rotary kilns, including a beam disposed on magnetic supports with a plunger that moves relative to the beam during deformations of the sheet bending and through the lever system acts on the recording device.

The described invention relates to devices of the same type and is aimed at improving the accuracy of the instrument readings. This is achieved by the fact that the magnetic supports are articulated with the beam with the help of hinges, which ensure the complete adherence of the supports to the surface of the furnace body.

FIG. 1. shows the kinematic scheme of the proposed device; in fig. 2 - a general view of the device; in fig. 3- piston device Nribor; pas figs. 4 shows the recording device of the device.

The device consists of a beam 1, which is connected with two supports by means of the strips 2, which also serve to mount the device on the furnace sheet. The supports are made in the form of poles 5 of magnets 4 and handles 5 and are connected to the beam by means of hinges 6. In the middle part of the beam / mounted plunger 7 resting on the sheet of the furnace body and having the possibility of free movement relative to the beam during deformations of the sheet bending. The plunger 7 rotates the intermediate lever 5 around the axis 9. The lever 8, in turn, is connected to the lever 10, whose rotation around the axis // is transmitted to the pen of the recorder 12. The deformation is recorded with a pen on a rotating figure 13 relative to the device /.

The plunger 7 is placed in the opening of the sleeve 14, which moves in the sleeve 15. The sleeve 14 is connected to the cap 16. The plunger 7 rests on its own. a shank to the sheet of the furnace body under the action of the spikes 17. In the off position, the plunger is held in the cree sleeve by the retaining screw 18, at the end of which there is a handle 19.

No. 145375-2. The cap 16 is kept from rotation by the bar 20. To avoid rotation of the sleeve 14 relative to the cap 16, the handle 19 is fixed in a position where the locking screw 18 is pressed against the edge of the angle of the square 21. This is done by a spring 22 fixed on one side to the handle 19, and on the other - associated with the beam.

To transmit the movement from the pusher 23 to the plunger 7, the rocker 24 is suspended from the post 25 mounted on the beam.

Before installing the device, the plunger 7 is fixed in the upper position. To do this, pressing the handle 19 releases the plunger 7; pressing M on the pusher 23 rotates the rocker arm 24, leading to raising the plunger to the up position. After releasing the handle 19, the locking screw 18 under the action of the spring 22 secures the plunger 7 in the sleeve 14. In this position, the plunger 7 compresses the spring 17.

After the device is installed on the housing of the rotary kiln, the handle 19 is pressed again, and then released. In this case, the plunger 7 under the action of the spring 17 escapes from the sleeve 14 up to the stop into the sheet of the furnace body — and is again fixed in this position by the locking screw 18.

When the curvature of the furnace body changes as a result of bending deformation, the plunger 7, the sleeve 14 and the cap 16 move relative to the sleeve 15 and the beam / in the vertical direction.

Moving vertically upwards, the cap 16 presses the set screw 26 of the intermediate lever 8. To change the relationship of the arms of the intermediate lever 8, the set screw 26 can be placed in one of the two threaded holes of the lever 8. This creates the possibility of recording bending deformations depending on the limits and their changes with two degrees of increase.

The intermediate lever 8 is pressed onto the sleeve 27, which rotates on a fixed axis mounted on the beam /. The lever 8 (FIG. 4) consists of a base 28 mounted on an axis, an arrow 29 and a balancing load 30. The latter is equipped with a screw 31 to balance the lever mechanism.

The movement from the intermediate lever 8 is transmitted by means of a screw 32, fitted at the end with a ball, acting on the base arm 28.

The spring 33 serves to return the pen to the center of the diagram, the tension of the spring 33 is adjusted by moving the bar 34.

The arrow 29 is made of spring sheet steel and is attached to the base by means of two screws and a strip. The pressure of the pen on the chart is adjusted using screw 35.

The end of arrow 29 is provided with an ink reservoir and a pen 12. The reservoir is a tube 36 equipped with two plugs and an air outlet. A feather 12 in the form of a glass tube is inserted into one of the plugs.

The pen is set so that the start of the recording takes place from the middle circle of the diagram. For this purpose, the device is equipped with a lever; a pen drive mechanism equipped with a handle 37.

The instrument diagram is mounted on the fingers of the shack 38, which is provided with a counterweight to rotate the chart simultaneously with the rotation of the furnace body. A frame 39 serves to hold the diagram on the faceplate.

The described device allows us to simplify the process of producing measurements of the deformation of the furnace body during rotation, ensuring sufficient measurement accuracy. Therefore, it can be used, for example, in cement plants.

Subject invention

A device for determining the bending deformations of the housings of rotary kilns, including a beam located on magnetic supports with a plunger moving relative to the latter when the sheet bends deformations and acting through a lever system on a recording device, characterized in that in order to increase the accuracy of the instrument readings with a beam with the help of hinges, ensuring complete adherence of supports to the surface of the furnace body.

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