CN201108892Y

CN201108892Y - Compound vibrating screen

Info

Publication number: CN201108892Y
Application number: CNU2007201173569U
Authority: CN
Inventors: 姜官军; 周荣惠; 李柏岐; 梁贤敏; 王祥
Original assignee: Daqing Petroleum Administration Bureau
Current assignee: Daqing Petroleum Administration Bureau
Priority date: 2007-11-06
Filing date: 2007-11-06
Publication date: 2008-09-03
Anticipated expiration: 2017-11-06

Abstract

The utility model relates to a compound vibrating screen which mainly solves the problems existing in the prior vibrating screen that the screen separation effect is poor, the adjustment of a screen face obliquity is complex and the fixing mode of a screen net is complex. The compound vibrating screen is characterized in that: two big shock excitation electrical motors (4) and a small shock excitation electrical motor (5) are fixed on an electrical motor seat (1); two sides of the left end of a base (2) are connected with screw mandrels (7) provided with screw nuts; one side of the screw mandrels (7) on the base (2) is fixed with a graduation dial; a supporting plate of the screw nuts is connected with a spring; a left end bracket of a screen box (3) is seated on the spring; a bottom frame of the screen box (3) is provided with a screen mesh (9) with a framework (8); a shim block is inserted between position limiting plates fixed at the inner side face of the framework (8) and the screen box (3). The compound vibrating screen has the characteristics of good screen separation effect, simple adjustment of screen face obliquity as well as simple and convenient fixing mode of the screen net.

Description

The complex vibration sieve

Technical field:

The utility model relates to the used vibratory sieve of drilling well in the oil drilling field, especially the complex vibration sieve.

Background technology:

In the wellbore construction process, be mingled with drilling cuttings and impurity drilling fluid and going out from well head is counter, by vibratory sieve drilling fluids and drill cuttings and impurity are crossed again and filtered the bulky grain silt in the screening drilling fluid mud.And existing vibratory sieve is poor because of reasons in structure exists screening effect, and screen angle is regulated complicated, and screen cloth fixed form complicated problems influences drilling efficiency.

The utility model content:

In order to solve existing bolting weak effect, screen angle is regulated complicated, screen cloth fixed form complicated problems, the utility model provides a kind of complex vibration sieve, this complex vibration sieve has that screening effect is good, and screen angle is regulated simple, and the screen cloth fixed form is characteristics simply and easily.

The technical solution of the utility model is: this complex vibration sieve comprises screen box, base and motor cabinet, be fixed with two big shock electric machine and little shock electric machines on the motor cabinet, base left end both sides are connected with the screw mandrel of band screw, base upper screw rod one side is fixed with dial, be connected with spring on the supporting plate of screw, screen box left end bearer carrier is equipped with the screen cloth of tape frame (8) on the screen box underframe on spring, be inserted with voussoir between the limiting plate that framework and screen box medial surface are fixed.

The utlity model has following beneficial effect: this complex vibration sieve is owing to take such scheme, at first because of increased a little shock electric machine at the motor cabinet rear side, whole three electric machine structures that adopt, two big shock electric machines become twin shaft inertia linear vibrating screen when working; When three motors are worked simultaneously,, can realize the balanced elliptic track, thereby improve screening effect because the running of little shock electric machine has changed resultant force vector.Secondly fix a dial and screw mandrel in base left end both sides, reach the purpose of regulating screen angle by rotary screw, and can intuitively show the screen angle angle by dial, it is simple to make screen angle regulate.Because of screen cloth has framework, be fixed on the screen box at last, so reach fixing and the simple purpose of mode of operation by voussoir.Thereby reduced the drilling well production cost, improved drilling well production efficiency, helped applying.

Description of drawings:

Accompanying drawing 1 is a structural representation of the present utility model;

Accompanying drawing 2 is Fig. 1 vertical views;

Accompanying drawing 3 is Fig. 1 left views;

Accompanying drawing 4 is that Fig. 3 A is to view.

1-motor cabinet among the figure, 2-base, 3-screen box, the big shock electric machine of 4-, the little shock electric machine of 5-, 6-voussoir, 7-screw mandrel, 8-framework, 9-screen cloth.

The specific embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing:

By Fig. 1 in conjunction with Fig. 2, Fig. 3, shown in Figure 4, this complex vibration sieve comprises screen box 3, base 2 and motor cabinet 1, be fixed with two big shock electric machines 4 and a little shock electric machine 5 on the motor cabinet 1, base 2 left end both sides are connected with the screw mandrel 7 of band screw, base 2 upper screw rods 7 one sides are fixed with dial, are connected with spring on the supporting plate of screw, and screen box 3 left end bearer carriers are on spring, be equipped with the screen cloth 9 of tape frame 8 on screen box 3 underframes, be inserted with voussoir 6 between the limiting plate that framework 8 and screen box 3 medial surfaces are fixed.At first because of increased a little shock electric machine 5 at motor cabinet 1 rear side, whole three electric machine structures that adopt, two big shock electric machines 4 become twin shaft inertia linear vibrating screen when working; When three motors are worked simultaneously,, can realize the balanced elliptic track, thereby improve screening effect because the running of little shock electric machine 5 has changed resultant force vector.Secondly fix a dial and screw mandrel 7 in base 2 left end both sides, reach the purpose of regulating screen angle by rotary screw 7, and can intuitively show the screen angle angle by dial, it is simple to make screen angle regulate.Because of screen cloth has framework 8, be fixed on the screen box 3 at last, so reach fixing and the simple purpose of mode of operation by voussoir 6.Thereby reduced the drilling well production cost, improved drilling well production efficiency, helped applying.

Claims

1, a kind of complex vibration sieve, comprise screen box (3), base (2) and motor cabinet (1), it is characterized in that: be fixed with two big shock electric machines (4) and a little shock electric machine (5) on the motor cabinet (1), base (2) left end both sides are connected with the screw mandrel (7) of band screw, base (2) upper screw rod (7) one sides are fixed with dial, be connected with spring on the supporting plate of screw, screen box (3) left end bearer carrier is on spring, be equipped with the screen cloth (9) of tape frame (8) on screen box (3) underframe, be inserted with voussoir (6) between the limiting plate that framework (8) and screen box (3) medial surface are fixed.