SU1379136A2 - Arrangement for stabilizing the horizontal position of vehicle platform - Google Patents

Abstract

The invention relates to a device for stabilization. south of the vehicle platform relative to the emitters of seismic oscillations and provides improved transition conditions for platform 1 in stabilization mode. A platform mounted tilt angle sensor, in the case of which plumb 5 is placed, executive hydraulic cylinders 2 of support 3 are connected to the hydraulic distributor 13 with electric control spools, in the control circuit of the xy.x relay nopni-ny.x and, accordingly, rod cavities of electric control The hydrodistributors included contacts 23 and 24 of the additional relays 21 and 22, while the windings of the additional relays, whose contacts are included in the control circuits of the x relays of the cavities, are included in the penalties of the control relays of the rod cavities and oh Additional relays, the contacts of which are included in the control circuit pe, i.e. rod cavities, are included in the control circuits re, ne piston cavities. 1 il. e (L

Description

00

;about

00 O5

The invention relates to devices for stabilizing the horizontal position of a vehicle platform relative to emitters of seismic vibrations mounted on a platform, and is an improvement on the author. St. No. 1339038. The purpose of the invention is to improve the conditions for the transition of the platform in the stabilization mode. The drawing shows a schematic diagram of the device.

The device comprises a platform 1, on which the shells of three hydraulic cylinders 2 are rigidly fixed, and their rods are connected to outriggers 3, on which the platform is hung out in a horizontal position during seismic surveys of the installation. Platform 1 also has a math sensor 4 of the longitudinal and transverse roll signals. The plummet 5 plumb sensor is attached to the housing 6 by means of a universal joint 7. On the plumb 5 there are protrusions 8, and on the housing 6 there are three switches 9, each having njecTb contact plates 10. Each of the switches 9 is connected to a relay amplifier 11.

The relay amplifier 1 1 is connected to the electrically controlled valve 12 of the hydraulic distributor 13, which also includes the valve 14 controlling the hydraulic cylinder 2. Working fluid to the valve spool 14 is fed through the pressure main 15 and is discharged through the discharge main 16 (pump, tank, valves not shown). To transfer platform 1 from the transport position to the working position and vice versa, the device is equipped with a switch 17 for switching on the mode of transferring the platform 1 from the transport position to a working position and switch 18 for switching on the mode for transferring platform I from the working position to the transport position. These switches 17 and 18 are connected to the respective windings of the electrically controlled spool 12.

In each of the circuits 19 and 20 of the forced control through the control valves of the electric control of his hydraulic distributor by supplying the working fluid to the working cavities of the power cylinders 2, additional relays 21 and 22 are included, and their contacts 23 and 24 are included respectively in the chain 25 of the control relay of the rod cavities and the chain 26 of the control relay of the porous cavities of the automatic control of the power cylinders 2. When the auxiliary relay 21 is wound, the contacts 24 of which are included in the circuit 26 of the control of the relay of the piston cavities are included in Force 19 forcing the control relay of the rod cavities, and the windings of the additional relay 22, whose contacts are included in circuit 25 of the control relay ujTOKOBbix cavities, are included in the circuit 20 of forcing acting on the control relays of the piston cavities. Forced control TTC using switches 17 and 18.

The device operates in the mode of stabilizing the horizontal position of the vehicle platform 1 during the operation of the seismic source in the mode of transfer of platform I from the transport position to the working position and in the mode of transfer of the platform 1 from the working position to the transport position.

In the stabilization mode of the horizontal position of the vehicle platform 1, the device operates in the following manner. During the operation of a seismic installation, a uniform subsidence of the supports (emitters of seismic signals) occurs due to the uneven compaction of the soil, which has a non-uniform structure under different supports. As a result, the platform I deviates from the horizontal position. Wherein

 (; tcl (SL1 and tangent body sensor 6 6 angles of inclination, and plumb 5 of sensor 4 under the action of its own weight maintains a vertical position. Each of the projections 8 on plumb 5 of sensor 4 closes the corresponding pins 10 on switches 9 then the corresponding relays are triggered on the relay amplification .le 1 I and the supply voltage is applied to the appropriate winding of the electrically controlled spool 12 of the hydraulic distributor 13,

0 hydraulically acting on the spool 14 of the control of the power hydraulic cylinder 2, connecting its working cavities with spring 15 or drain 16 lines. As a result of this, extension or freezing of the current to the corresponding 1 of the hydraulic cylinder 2 takes place, and platform I is stabilized in horizontal. gnom position.

In the translation mode of platform 1 from the transport position to the working device

- works as follows. When the switch 17 of the circuit 19 is forcibly applied to the electrically controlled valve 12, the supply voltage is applied to its left winding. The spool 12 is mixed to the extreme left position and

5 connects the delivery line 15 to the right-side camera of the spool 14, moving it also to the left. After that, the pressure line 15 is connected to the piston cavity of the power hydrocyliprad 2, and the drain 16 is connected to the rod end, which leads to forced

0 raising this support and, as a result, to the deviation of platform 1 from horizontal position.

Simultaneously with the forced impact on the electrically controlled valve 12, the supply voltage and the winding

5 relays 21, as a result of which the contacts 24 are disconnected, disconnecting the circuit 26 and thereby disconnecting the impact of the master 5 through the switch 9 and the circuit 26 on the right-hand winding

electrically controlled spool 12 (horizontal stabilization of only this forcibly controlled support is switched off).

The indicated deviation of the platform 1 from horizontality leads to the deviation of the sensor 5's face 4, which, with its projections 8, closes the corresponding external contacts 10 of the switches 9, thereby applying voltage to the corresponding electrically controlled spools 12, which in turn contribute to the connection of the discharge line 1I 15 with piston cavities of power hydraulic cylinders of the two other two groups of supports. As a result, all hydro power cylinders 2 of all three groups of supports are connected by their piston cavities to the delivery line 15, which leads to the lifting of the vehicle platform 1. Since the horizontal stabilization of the forced lift support is disconnected and the delivery line 15 does not connect with the clamp cavity of this group of power cylinders 2 (this support does not lower due to automatic stabilization), the vehicle platform 1 is evenly raised horizontally. After the platform 1 reaches the required lift height, the switch 17 turns off the supply voltage and the process of transferring the platform 1 from the transport position to the working position is stopped.

In translation mode, platform 1 from the working position to the transport device operates as follows. When the switch 18 switches the circuit 20, the supply voltage is applied to the winding of the relay 22, as a result of which the contacts 23 of the circuit 25 are disconnected, thereby disconnecting the impact of the master 5 on the left winding of the electric controllabel hammer 12 ).

At the same time, the supply voltage is applied to the right-hand winding of the electrically controlled spool 12. The spool 12 moves to the extreme right position and connects the discharge line 15 to the left camera of the spool 14, moving it also to the right. After that, the delivery trunk 15 connects to the flow cavity of the hydraulic cylinder 2, and the drain line 16 connects to the pinch cavity, which leads to the forced lowering of this support and, as a result, to the deviation of the platform 1 from horizontal position. This deviation leads to the deviation of the sensor 5 of the sensor 4, which, with its projections 8, closes the corresponding internal contacts 10 of the switches 9, thereby supplying power to the right windings of the corresponding electro-controlled spools 12, which in turn contribute to the connection of the discharge line 15 by the thrust cavities of the power hydraulic cylinders of the two other two groups of supports. As a result, all the power cylinders 2 of all three groups of supports are connected with their brush cavities to the injection line 15, which leads to the lowering of the vehicle platform 1. Since the horizontal stabilization of the forced-lowering support is disconnected and the delivery line 15 does not connect to the piston cavity of this group of power cylinders 2 (this support does not rise due to the automatic stabilization of the horizontal position of the platform 1), the vehicle's platform 1 is evenly lowered. After the rods of the power cylinders 2 reach their extreme position, the power supply voltage is turned off by the switch 18 and the process of transferring the platform 1 from the working position to the transport position is stopped.

thirty

Claims (1)

Invention Formula A device for stabilizing the horizontal position of the vehicle platform according to ed. St. Nfe 1339038, characterized in that, in order to improve the conditions of the platform transition to stabilization mode, the contacts of additional relays are included in the control relay circuits to supply fluid to the piston and, respectively, niTOKOBbie cavities of the hydraulic control valves of the outboard support hydraulic cylinders. , while the windings of additional relays, the contacts of which are included in the control relay circuit for supplying fluid to the piston cavities, are included in the control relay circuit 5 liters of fluid supply to the caverns, and the windings of additional relays, whose contacts are included in the control relay circuits to supply fluid to the caverns, are included in the circuits of the control relays to supply fluid to the piston cavities.