SU1543070A1 - Device for automatic control of hydraulic monitor barrel - Google Patents

Description

The invention relates to the automation of mining operations and allows to increase the performance of the jet by eliminating uncontrolled bore passages to the edge positions when changing the tasks of the limiting angles of the automatic rocking sector of the barrel. To do this, the device entered registers (P) 4 and

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5 storage codes of the upper and lower values of the swing angles of the barrel of the spent cycle of the program with decoders (e) 9.11, set from the control panel 1, the analyzer 6 codes and the element OR 7, The device also contains P 2 and 3 sets the upper and lower angles of the current program cycle with D 8,10, amplifier unit 12, position sensor (DP) 13 of the stem 16 of the barrel drive cylinder 16, which controls the stem 15 of the control circuit 15 of the control valve 15, the stem 16. The current position of the barrel swing sector is transmitted to the stem 16 through P 2 and 3, D 8 and 10, unit 12 amplifier it, DP 13, block 14 relays and through the valve 15. The worked values of the codes of the angles are stored in P 4 and 5 and transmitted through D 9 and 11, the amplifier 12 to DP13. The analyzer 6 compares bitwise, starting from the most significant digit, the codes of the upper value of the angle of the current and the lower values of the spent cycle. If you exceed the upper value

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corresponding to the location of the new sector over the old one, a control signal is generated at P 5, which changes information in it, since its information inputs are connected to the outputs. R 3. Otherwise, no change of information occurs. At the entrances of D 8 and 10 act

The binary codes for specifying the boundary angles (ϊ + 1) –γο of the program stroke, and the inputs D 9 and 11 are the binary codes for specifying the upper and lower or one upper boundary angles of the ίth cycle. This eliminates the loss of controllability at the initial moment after the change of information in P 2 and 3 „1 Il.

The invention relates to the automation of mining operations, in particular, to hydraulic stems controlled by electrohydraulic valves using hydraulic cylinders.

The purpose of the invention is to increase the productivity of the jet monitor by eliminating uncontrolled bore passages to the marginal applications when changing tasks to the limiting angles of the automatic swing. 25

The drawing shows a functional diagram of the device controlling the vertical movement of the table "

To control the horizontal movement of the trunk, you need the second 39 the same device.

The device for automatic control of the barrel of the jetting device contains a remote control 1, registers 2 and 3 of RAM for storing binary codes 35

values of the upper and lower boundary angles of the sector of automatic swing of the barrel of the current program cycle, registers 4 and 5 of RAM for storing binary codes of the values of analogous angles of the spent cycle of the program, analyzer 6 codes for determining the mutual spatial arrangement of the sectors of swing of the trunk according to the used and current so-called 45

there are programs, a logic element OR 7 for expanding the control input of the register 5, decoders 8-11 for converting binary codes into decimals, a block of 12 amplifiers for co-ordinating ₅ θ pass with a load of the boundary angle setting signal ·, a reed switch 13 of the stem 16 block 14 relay control valve 15.

The outputs of registers 2 and 3 of the job and 4 and 5 of storing the codes of the values of the current and waste values are connected via the corresponding decrypt

rators 8 - II with inputs of block 12 amplifiers, the output of which is connected to the input of sensor 13 of the position of the hydraulic cylinder rod connected to block 14 of the valve of hydraulic distributor 15 and to the control input of register 4 for storing the code of the upper value of the spent tact of the program and with one of the inputs of the element OR 7 The second input element OR 7 is connected to the output of the analyzer. 6 codes whose inputs. connected respectively with the outputs of the register 2 set the upper value of the angle of the swing sector of the barrel of the current cycle of the program and register 5 store the lower value of the angle of the spent cycle of the program. The output of the element OR 7 is connected to the control input of the register 5 storing the code of the lower value of the angle of the spent clock cycle. The information inputs of registers 4 and 5 of storing codes of the spent cycle are connected to the outputs of registers 2 and 3 of setting the codes of the current program cycle, respectively. ”

The device works as follows.

From the control panel 1, the codes of the boundary angles of swing of the monitor are issued from a prerecorded program for registers 2 and 3 of RAM. These codes, decoded by decoders 8 and 10, are issued through amplifiers to a position sensor, which ensures that the barrel rotates in a given sector. At the same time, the codes recorded in the RAM registers 2 and 3 are fed to the corresponding information inputs of the additional registers d and 5 RAM of the storage codes. At the initial position in the registers 4 and '5 of RAM, the codes of the first • program cycle are entered. At the end of the processing of the ί-th (including _the first) tact of the program, information about setting the grades ⁵ 1543070

of the free angles of the automatic swing of the jetting shaft to the current

(ΐ + 1) -th clock cycle in the form of binary codes is rewritten for operative storage from console 1 to RAM registers 2 and 3. In registers 4 and 5, the values of the codes of the boundary angles of the spent отработ th clock of the program are stored. Codes of the upper boundary angle (ΐ +) -th cycle and the lower boundary angle of the ΐth cycle from the output of registers 2 and 5 are fed to the inputs of the code analyzer 6, which makes their bitwise comparison, starting with the highest digit. If the value of the upper fragile code (ΐ + I) of the tact exceeds the value of the code of the lower angle of the ΐth cycle, which corresponds to the location of the new sector under the old one, it generates a signal coming through the element. OR to the control input of the register 5. This signal changes information stored in register 5: the code of the lower corner of the ΐth cycle is replaced by the code of the lower corner (ϊ + 1) -γο of the cycle, since the information inputs of register 5 are connected to the outputs of register 3 "For any other relative positioning of sectors, change the information in the register 5 does not occur. Thus, at the inputs of the decoders 8 and 10, the binary codes for specifying the boundary angles of the (1 + 1) th cycle of the program arrive, and the inputs of the decoders 9 and 11 are the binary codes for specifying the upper and lower bars or one upper boundary angle of the ΐth clock cycle. By this

re, or will be sent to him by this reverse. Entering the new sector, the barrel will automatically swing in it until the next 5 program cycles. When the reed switch closes, determining the position of the barrel at the lower boundary angle, the output of the position sensor 13 causes a voltage drop from a high level to zero, and when it is open, when the barrel starts moving in the right direction, from zero to a high level, Ie . a pulse arises, which, acting on the control inputs of registers 4 and 5, will remove the task of the boundary angles of the такт th cycle by writing information to these registers, located 20 in registers 2 and 3. As a result, the device is prepared for the next change of program clock, when new information will be recorded in registers 2 and 3, and fear 4 and 5 will remain old in registers. Then the cycle repeats. ”

The use of the proposed device for automatic control of the jetting shaft ensures the controllability of the barrel during transition periods, which increases the safety of operations, and ensures the optimization of the transition from tact to that program with an accuracy of one half period of swing of the barrel, since the excavation is in progress

Reachability is achieved after registers 2

exclusion of loss upv initial information exchange in

and 3. From de outs

encoders, the job signals already in decimal code arrive at

12 amplifier block matching inputs

with the load and then to the corresponding reed switch sensor 13 of the position of the rod of the hydraulic cylinder 16 of the actuator stem of the jetting machine. When any of the sensor reed switches are closed, the boundary angle setting signal will be passed to the control valve control unit 14 and the control valve 15

reversal of the water jet barrel will occur. And at the moments of time when the trunk reversal occurs at the lower boundary angle of any of the sectors, the stem of the jet monitor is either already in a new sectoral regulated manner,

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Claims (1)

Claim Device for automatic 45 control shaft of the jetting machine, containing a control panel, the outputs of which are connected to the information inputs of the registers setting the codes of the upper and lower values of the boundary angles of the swing sectors of the barrel of the current program cycle, the outputs of which through the corresponding dehydrators and amplifier unit are connected to the inputs of the position sensor 55 of the hydraulic cylinder rod, the output of the valve is connected to the control unit of the control valve of the hydraulic distributor, that is, with the help of increasing the performance of the hydraulic 7 1543070 eight monitor, by eliminating uncontrolled passes of the jetting shaft to the extreme positions when changing jobs The limiting angles of the automatic swinging sector of the barrel, the OR element, code analyzer and storage registers of the upper and lower boundary values of the swing sectors of the program with corresponding decoders, which are the outputs of the registers of storing codes for the values of the angles of the spent cycle of the program are connected to the corresponding inputs of the amplifier unit, tional inputs storage registers connected to outputs of the respective registers assignment of codes for the upper and lower values of the angles of the current clock cycle of the program, the control input of the register. storing the code of the upper limit value of the angle of the spent cycle of the program is connected to the output of the position sensor of the hydraulic cylinder rod and in one of the OR elements, the other 10 input of which is connected to the output of the code analyzer, the inputs of which are connected to the outputs of the register of setting the codes of the upper limit value of the angles of the current program tact 15 the outputs of the register of storage of codes of the lower boundary value of the angles of the spent clock cycle, the control input of which is connected to the output of the OR element.