SU244218A1 - DEVICE FOR THE CONTROL OF WORKING DISPLACEMENTS OF THE PLANT WITH ANWIRE ANCHOR PAPILONIATION - Google Patents

Description

Devices are known for monitoring the working movements of a dredger with pile-papillonization, which include a rotation angle sensor, a position sensor for a collecting device, and a pressure sensor for positioning a pressure swap.

The purpose of the invention is to automate the process of measuring and maintaining the required width of the slot developed by the dredger by fan-shaped turning around the pile into the soil of the pile when nabiraini etching papilonazhnyh cables. This is achieved by the fact that in the proposed device, on the output shaft of the rotation angle sensor, an electromechanical multiplier unit is mounted with its mechanical input, which is connected by its electrical input with a unit that summarizes the electrical signals of the sensors of the positioning body, pressure pile and the length of the dredger body.

For continuous multiplication of a signal proportional to the magnitude of the development radius, the sine of the rotation angle of the dredger and the multi unit can be made in the form of a spin-cosine rotating transformer, the stator winding of which is turned on to the development radius. The rotor shaft is rigidly connected to the output shaft of the angle sensor. The voltage, proportional to the actual deviation of the soil-collecting organ from the axis of the slot, is removed from the sinus winding of the rotor.

FIG. Figure 1 shows the piling scheme of the dredger in two projects; in fig. 2 - electric circuit in principle.

As can be seen from FIG. 1, the width of the slot along the bottom when typing-etched papilonazhnyh cables is determined by the distance from the main pressure pile to the end of the gantry body (development radius and the angle of rotation of the dredge body around the stabbed pressure pile in the expression

B Psiny. (+ A f / g) sm}. (Uos + A + kH) sim ...

(one)

where; B is the distance from the axis of the slit edge, m;

P - development radius, m;

a - angle of rotation of the dredger yes

around Svan;

/ Lcosp is the length of the projection of the frame of the collecting organ on the horizontal plane, .and;

L const - the length of the body of the sgmsnard between the axis of rotation of the grouser and the extreme front position of the axis of the pressure pile, m; h kH-shift of the pressure pile relative to its extreme front position, m; N - full stroke pressure

piles, m;

O A 1 - the utilization rate of the pile drive.

In the process of development, not only the angle a, but also the radius of development changes. The latter is changed when lowering and raising the grouser (changing the depth of development) and moving the dredge body forward relative to a stationary pressure pile. If the dredger does not have a nano piling, the last term in expression (1) is missing.

The proposed device is a continuous calculator that solves equation (1) with respect to B. B.

It includes a sensor of position 1 of the frame of the collecting organ, sensor 2 of the position of the pressure pile, a voltmeter-indicator 5 of the stroke of the pressure pile, the summing unit 4, the angle of rotation of the body of the dredge and the course 5, multiplier unit 6, the end deviation of the end pickup the device from the axis of the slot and the output relay block 8.

Sensor 1 is made using a serial 1WT rotating transformer connected in a sine-cosine compensated circuit with an IR load on the cosine winding of the rotor. The 1BT transformer is fixed on the frame, and its rotor shaft is connected to a heavy free-hanging rim, whereby the angle of rotation of the 1WT transformer will correspond to the angle p of the frame to the horizon. The voltage across resistor 1 will change as the depth of development changes according to the cosine law and will depict, in a certain scale, the length of the horizontal projection of the frame of the collecting unit:

and - k. p miLcos p, in,

where L / C is the mains supply voltage, in:

R-t is a constant transformation ratio of a rotating transformer;

mj is the constant mass-scale coefficient, in / m.

The pressure pile position sensor is also performed using a rotating 2VT transformer connected in a linear compensated circuit to a 2R load. The stator 2W is attached to the dredger body, and the shaft of its rotor is connected to the mechanism of the pressure pile movement so that the full speed of the pressure pile H corresponds to the rotation of the rotor 2W at an angle of about 120 °. In this case, the voltage across the resistor 2R will vary linearly and will depict, on a certain scale, the shift of the pressure head of the pile from the extreme low of the floor:

2d, / By / eY m-2h, in, where / П2 - constant mass base ratio, in / m.

A voltmeter installed on the control panel 5 with a scale graduated in meters shows the value of the shift of the pressure piles. The series-connected resistors 1R, 2R, 3R and the resistor 4R parallel to them form a summing unit 4 having three inputs and one output. The inputs of this block are given the above-mentioned voltages U. and f / 2, as well as the constant magnitude of the wickedness, shown in mass scale m lengths of the dredge body A. The voltage at the output of the block is equal to the sum of the outputs, The input from the inputs to the 4R resistor and, therefore, represents the length of the development radius on the scale m:

(3 + and m (i + h + A} TR, a, where m is a constant scaling factor

0ent, eJM.

The selection of the scale m and the reduction of all the terms to this scale are carried out using the help of potentiometers 1R, 2R and 6R. The output shaft of the sensor of the rotation of the dredger - heading device 5, which uses a serial hydroscopic compass (aviation autopilot), is rigidly connected to the rotor shaft and rotates it, its transformer ZVT forming the multiplying unit 6.

The DFT transformer is powered by a sine-sinus compensated circuit with a 5R load on the sine winding of the rotor. Since the primary winding 3JBT is energized (/ 4 tR, representing the length of the development radius, and the rotor of the HAZ is turned by the course device 5 at an angle a equal to the angle of rotation of the casing of the dredger and the resistor 5R:

and kfUiSin and sriia gpv B, b, where m is the constant coefficient of proportionality, i / m, i.e., it displays on a scale m the deviation of the pick-up device from the axis of the slot in alignment (1).

5 The output relay block 8 supplies the iodine of pulses in the signaling and control circuit by achieving the maximum f / 5max in Dp; 1X1 by the position of the slider of the potentiometer 7R, which ensures the automatic maintenance of the specified slot width. In order to increase the accuracy of the operation of relay P, a semiconductor stabilizer JV is included in the circuit of its coil, which has a high resistance to voltage

A voltmeter 7 mounted on the control panel with a scale graduated in scale m in meters gives continuous information about the position of the soil collecting device relative to the axis of the slot.

The efficiency of the proposed device is that it allows you to automate the process of controlling the dredger, including the dredging house with pressure piling and, increasing the accuracy of the slot, leads to a significant economic effect due to the reduction of useless pererabom soil beyond the design borders of the slot, with existing methods of operation, the component is at least 5–7% of the total volume of soil processed.

Subject invention

Claims (2)

1. A device for monitoring the working movements of a dredger with pile-root papillonization, including a rotation angle sensor, a position sensor of a soil collecting unit and a piling pickle sensor, characterized in that, in order to automate the measurement process and maintain the required slot width, on the output shaft of the steering angle sensor is mounted with its mechanical input an electromechanical multiplier unit connected by its electrical input with a sensor of a soil collecting organ , pressure piles and signal length of the hull dredger. 2. The device according to claim 1, characterized in that, in order to continuously multiply the signal proportional to the magnitude of the development radius, by the sine of the rotation angle of the dredge, the multiplying unit is designed as a sinus-sinus-rotating rotary transformer, the stator winding of which is connected to a voltage proportional to the radius development, the rotor shaft is rigidly connected with the output shaft of the angle-of-turn sensor, and the voltage proportional to the actual deviation of the soil collecting organ from the axis of the slot is removed from the rotor winding sinus. f 1 with „ I 8 tienu management FIG. 2