SU1200214A1 - Installation for selecting seismic cables - Google Patents

Abstract

1. INSTALLATION FOR SELECTION OF SEISMIC CBS with seismic receivers. The transport medium containing a body with a body-mounted pick-up unit, including a control system, a drive and a frame on which transporting vehicles are installed, characterized in that, in order to improve the operating characteristics of the installation due to the safety of the seismic receivers, the transport rollers are located V-shaped with a guaranteed clearance, while on transporting rollers pulleys with annular grooves are mounted with the possibility of movement along them. 2. Installation under item 1, about tl and 9, which is supplied with the fact that it is supplied with springs of mutual preload of the transporting rollers and pulleys. "" /

Description

The invention relates to seismic exploration, in particular to auxiliary equipment used during seismic exploration.

The aim of the invention is to improve the performance of the installation. .

Fig. 1 shows a setup diagram, rear view} in Fig. 2, a device, a general VIEW, in Fig. 3, a device at the time of passing through the thickening of the braid} by r. 4 - view A in Fig. 2.

In the back of a vehicle

I (Fig. 1) has a control system 2 and a pick-up mechanism, including frame 3 and drive 4, and axle 9 and 10 of rollers are mounted in bearing assemblies 5-8

II and 12, between which a seismic mower 13c mounted on the outlet 14 by a seismic receiver 15 is inserted. The drive 4 is connected via the drive shafts 16 and 17 to the axes 9 and 10 of the rollers 11

and 12. On rollers 11 and 12 (Fig. 2), pulleys 19 and 20 can be mounted with sliding keys 18 and with grooves 21 and 22 with ring flanges. Pulleys 19 and 20 are spring-loaded springs 23 and 24 installed in the upper part of rollers 11 and 12. The rollers 11 and 12 are mounted for movement in the grooves 25 (Fig. 4) and brackets 26-29 (Fig. 3) made on frame 3 and spring 29 relative to frame 3, spring 30, whose force is adjusted by screws 31. On brackets 27 and 28 fixed restrictive strips 32 and 33.

The seismic streamer works as follows.

Vehicle 1 (Fig. 1) is installed above or near the end of the seismic spit 13. The end of the spit mounted on the outlet 14 by the seismic receiver 15 is manually inserted between rollers 11 and 12. After filling the seismic spit 13 into the collecting unit, the vehicle 1 starts moving along the seismic spit 13 and at the same time the operator uses the system 2 control to turn on the drive 4, which through cardan shafts 16 and 17 drives the rollers 11 and 12 in rotation on the directions indicated by the arrows. . At the same time due to friction links

between seismic spit 13 and rollers 11 and 12, seismic spit 13 with seismic receiver 15 is captured and transported into vehicle body 1. Since the rollers are mounted V-shaped, the normal forces between the working surfaces of the rollers 11 and 12 and the mowing head 13, which due to its own weight, the seismic sowers 13 and the seismic receiver 15, and, consequently, the frictional force are much greater than those of the rollers, which are arranged in parallel. The strength of the friction is greater, the smaller the angle of the wedge. The angle between the rollers 11 and 12 is selected on the basis of the absence of slippage of the seismic tape cutter 13 between the rollers 11

and 12.

The material of the rollers can be selected spongy rubber, and the angles of deflection of the axes of the rollers 11 and 12 from the vertical can be

8-15 (depending on the speed of transportation of the spit 13 and weather conditions).

The dotted line in FIG. 1 shows the position that the seismic mowing machine 13 takes in rollers 11 and 12 when passing through the rollers 11 and 12 of the bulges on the spit 13. At the same time (i.e., when the thickness of the spit 13 changes) the solution of the rollers 11 and 12 does not change and barely.

Indeed, the forces affecting the braid 13 do not change.

Pulleys 19 and 20 can be mounted on rollers 11 and 12 with annular grooves 21 and 22. Pulleys 19 and 20 can move along rollers 11 and 12 by changing the thickness of the braid 13 (Fig. 2). The annular grooves 21 and 22, made on the pulleys 19 and 20, make it possible to increase the contact area of the pulleys 19 and 20 with the seismic mow 13, thereby eliminating the possibility of slippage of the seismic scoop 13.

The compression force of the spit with the rollers 11 and 12 (or pulleys 19 and 20) remains predetermined and constant, as the thickness of the spit 13 moves up or down relative to the rollers 11 and 12 or together with the pulleys 19 and 20 and the sliding key 18 is raised ( or lowered) over the rollers 11 and 12 (Fig. 3). Springs 23 and 24 limit spit 13 from

excessive movement (upward in Fig. 2) with increasing diameter of the braid 13. The springs 30 create the necessary force to clamp the braid 13 in the pulleys 19 and 20 if the jamming forces of the braid 13 are insufficient. Slats 32 and 33 prevent the seismic receiver 15 from being hit by the pickup unit and falling into the drive elements A.

Thebes. 2

Figz

Claims (2)

1. INSTALLATION FOR SELECTION OF SEISMIC SHOES with geophones, containing a vehicle with a body, a picking unit mounted in the body, including a control system, a drive and a frame on which transporting rollers are installed, characterized in that, in order to improve the operational characteristics of the installation due to the safety of the geophones, the transporting rollers are arranged V-shaped with a guaranteed clearance, while on the transporting rollers pulleys are mounted along them with evymi slots. 2. Installation according to claim 1, characterized in that it is provided with springs of mutual preloading of the transporting rollers and pulleys. ί