SU415374A1 - - Google Patents

Description

one

Devices for automatic control of movement are known: a board in a plan and a profile of a layer, comprising sensors for the deflection of the blade and tail parts of the shield, electrical switches, a relay for the levels of deviations, and summers.

The proposed device differs from the known ones in that the B-WAYS of two electrically operated switches are connected to the unit for determining the direction of deflection of the non-part of the switchboard and the relay | 11Y; 1 is the element of the maximum level of this deviation, the input of the third switch is connected with the relay elements of determining the minimum levels of deviation of the blade and tail parts of the shield, and its output is not connected to the relay elements of determining the levels of deviation of the tail of the shield, and the outputs of the nerves of the two switches are connected by corresponding .Mmators with executive bodies shch.ita. This may improve the control quality of the tunneling shield.

The drawing shows the structural scheme of the described device.

The device includes sensors 1 and 2 measuring the deviations of the tunneling shield from a predetermined path of movement of the blade and tail parts of the shield, blocks 3 defining the direction of deflection, blocks

2

determining a deviation value, a control unit 5 and an adder unit 6.

The deviation direction determining unit 3 consists of a relay element 7, which generates a signal when the knife section deviates to the right or left deviation of the tail section and a relay element 8, which gives a signal of the nrn deviation to the left section of the knife section or when the tail section deviates to the right.

Block 4 for determining the magnitude of the deviation contains relay elements 9 of the minimum level, the relay element of the maximum level and intermediate relay elements 10 and P. Relay elements of the minimum and

Maximum levels are determined by the minimum and maximum deviation levels, established by the rules of technical operation, respectively. Control unit 5 consists of three independent electronic switches 12-14. Block 6 su.mmatorov includes two groups of adders. A group of adders 15, 16, 17, etc., is connected to one group of jacks (for example, left), and a group of adders 18, 19, 20

etc., associated with another group of jacks (for example, right-handed). The number of adders corresponds to the number of groups of executive bodies (jacks).

Since the executive bodies (jacks)

located around the perimeter of the circumference, then the same executive bodies are used to correct the deviation of both the plan number and the formation profile. When dividing summator. On the right and left Kalsdy adder connected to certain jacks (and, for example, one). To use the same executive bodies (jacks) with deviation. As in the plan, so in the profile it is necessary that signals from the group of adders in the plan (right and left) and from the group of adders or lower). Therefore, to turn off one executive organ (jack), the shutdown signal must come from at least one out of two adders in plan or profile. The outputs of the sensors 1 and 2 of the deviation measurement are connected, with each relay element of the blocks for determining the level and direction of the deviation, and in the absence of deviation signals, all executive bodies (jacks) participate in the movement of the shield. If there are deviation signals depending on the direction of deviation, relays elements 7 and 8 are triggered, which iodine the signal to a group of adders (for example, to deviate the knife part to the right, to a group of adders 15, 16, 17). The signal from the relay element 9 of the minimum level of the knife part enters the switch 13, which gives a prohibitive signal to the cpai6a relay of the relay elements 9, 10, 11 of the deflection level X1 of the tail section. If there are two signals (for example, from relay elements 7 and 9 of the fire unit), the adders give a signal to turn off the actuator (for example, adder 15). If there is a deviation signal (for example, to the right) sufficient to trigger the relay element of the maximum level (for example, the knife part), signals from the relay element 7 for determining the direction of deviation of the burner part and the relay element for determining the maximum level of the deviation of the knife part go to switch 14, which (It sends a signal to a group of adders 20, 21, 22. The latter, in this case, will not output a signal, on switching off of independent organs, regardless of the presence of other signals at the input of adders 18., 19, 2 0. Similarly, the circuit operates when the relay elements are triggered. 8. The presence of deviation signals sufficient to trigger the relay element of the maximum deviation level of the tail section and not sufficient to trigger the relay element of the maximum deviation level of the knife section, the signal from the relay element of the maximum deviation level the tail section receives. on the inputs of the adders, which give a signal to turn off the jacks for the signals from the relay elements of the directional deviation no tail. The subject invention and device for automatic motion control; An analog switchboard in the board and a profile of the reservoir containing sensors for deflection of the pozhevy and tail parts of the psht, electrical switches, relay of the levels of deviation of scientific research institute and adders characterized by. that, in order to improve the quality of control, the inputs of two electronic (Switches are connected to the unit for determining the inclination of the blade section of the shield and the relay element of the maximum level of this deviation, the input of the third switch is associated with the relay elements of determining the minimum levels of deviation of the knife and tail parts of the shield, and its output is connected to relay elements for determining the deviation levels of the tail section of the shield, and the outputs of the first two switches are connected by corresponding adders with an external power supply. nymi shield bodies.