CN2661918Y

CN2661918Y - Guiding balance device for oil pumping unit

Info

Publication number: CN2661918Y
Application number: CN 200320127024
Authority: CN
Inventors: 刘牧洲; 李东平; 周汉鹏
Original assignee: XINJIANG PETROLEUM ADMINISTRATION BUREAU MAHINE MANUFACTURING CORP
Current assignee: XINJIANG PETROLEUM ADMINISTRATION BUREAU MAHINE MANUFACTURING CORP
Priority date: 2003-11-18
Filing date: 2003-11-18
Publication date: 2004-12-08
Anticipated expiration: 2013-11-18

Abstract

The utility model discloses an oriented equilibrator for the oil extractor, which comprises a base, a balancing weight which is connected with a haulage rope; a guide rail bracket having a gib cross section is arranged on the base vertically; a guide rail is relatively arranged on the left and the right wall vertically inside the guide rail bracket respectively; an uprighting roller and a guide roller are respectively arranged on the center of the left and the right side of the balancing weight inside the guide rail bracket from top to bottom; the uprighting roller and the guide roller are rolled along the guide rail and are positioned by the guide rail. The equilibrator is used by matching with the oil extractor, thus not only the floor area of the oil extractor is reduced, but also the swing phenomenon of the balancing weight under the action of external force is eliminated effectively, so that crash accidents between the oil extractor and other components are prevented.

Description

Used for oil extractor guide type bascule

Technical field

The utility model belongs to the bascule of used for oil extractor, particularly used for oil extractor guide type bascule.

Background technology

Adopt the beam-balanced pumping unit of two horse head structures, its structure is the symmetrical balance structure, on the balance horse head, hang certain balance weight with the balance polished rod load, thereby reduce the stressed of connectors such as crank, connecting rod, cut down the peak torque of reducer, reduce power of motor, to reach energy-conservation and purpose that increase the service life.In the large-scale oil pumper that adopts two horse head structures, its horse head cambered surface radius is bigger, and balance weight is suspended from outside the base space, and balance weight is big from the distance of reducer, crank, has increased the floor space of oil pumper; And in the oil pumper of middle-size and small-size pair of horse head structure, because the horse head cambered surface radius is less, balance weight is suspended from the base superjacent air space, the less wind-engaging of balance weight weight carries easy swing, also on the limited space of base, reducer, motor, balance weight and quadric chain be installed in addition, cause structure very compact, the gap of balance weight and reducer, crank is smaller, in operation process, the balance weight wind-engaging carries, the effect of vibration and lifting rope revolving force easily produces swing and rotation phenomenon, easily and crank or reducer bump and cause mechanical accident.

Summary of the invention

The purpose of this utility model is to provide a kind of used for oil extractor guide type bascule, this bascule and oil pumper are used, not only can reduce the floor space of oil pumper, and can eliminate balance weight effectively and be subjected to external force to make the dancing of time spent, prevent that other parts of itself and oil pumper from crashing.

The purpose of this utility model is achieved in that a kind of used for oil extractor guide type bascule, comprise base and the balance weight that links to each other with haulage cable, the guide rail bracket that cross section is concave shape vertically is installed on the base, the guide rail of positioned opposite vertically is installed respectively on relative left and right two walls in guide rail bracket, the balance weight and arranged on left and right sides face middle part that is positioned at guide rail bracket is equipped with respectively from top to bottom and is set upright roller and guide roller, sets upright roller and guide roller and rolls and by its location along guide rail.

Set upright roller and guide roller owing to being installed with respectively at balance weight and arranged on left and right sides face, make balance weight can only make rectilinear motion up and down reciprocatingly, so both reduced the floor space of oil pumper, can eliminate balance weight again is subjected to external force to make the dancing of time spent, thereby can not collide reducer and crank, avoid the generation of mechanical accident.The utility model is simple in structure, makes and installs easily, and is cheap for manufacturing cost.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described in further detail.

Fig. 1 is a main TV structure schematic diagram of the present utility model;

Fig. 2 is a side-looking structural representation of the present utility model;

Fig. 3 is the A-A cross-sectional view among Fig. 1;

Fig. 4 is the cross-sectional view of overlooking of the another kind of embodiment of the utility model.

The specific embodiment

A kind of used for oil extractor guide type bascule, as Fig. 1, Fig. 2, shown in Figure 3, comprise base 8 and the balance weight 3 that links to each other with haulage cable 1, the guide rail bracket 2 that cross section is concave shape vertically is installed on the base 8, the guide rail 5 of positioned opposite vertically is installed respectively on relative left and right two walls in guide rail bracket 2, the balance weight 3 and arranged on left and right sides faces middle part that is positioned at guide rail bracket 2 is equipped with respectively from top to bottom and is set upright roller 4 and guide roller 6, sets upright roller 4 and guide roller 6 and rolls and by its location along guide rail 5.

As shown in Figure 3, all has vertical chute that cross section is concave shape on two guide rails 5, the cooperation that contacts with two upright side walls of guide rail 5 chutes of the wheel side face of wherein setting upright roller 4, cooperation and the wheel side face of guide roller 6 contacts with the bottom surface of guide rail 5 chutes.Cross section can also be set on two guide rails 5 be semicircle or leg-of-mutton vertical fin, the wheel axial plane of setting upright roller 4 and guide roller 6 that matches with this vertical fin also is respectively semicircle or triangle, so that play the guide-localization effect.

During the oil pumper running, set upright swing and rotation that roller 4 has limited balance weight 3, guide roller 6 has limited swinging of balance weight 3, and balance weight 3 can only move up and down along guide rail 5, thereby can not collide reducer and crank, avoid the generation of mechanical accident.

As shown in Figure 4, the track cross-section of described two guide rails 5 can also be triangle, at the and arranged on left and right sides face of balance weight 3 middle part the triangle slips that matches with triangular guide 5 is being set respectively, is adopting this mode also can play to prevent that balance weight 3 is left and right waves or the effect of forward and backward rotation.

As shown in Figure 1 and Figure 2, front and two sides in guide rail bracket 2 bottoms are installed with the protective door 7 that has protective screening respectively, protective door 7 is isolated people, animal and moving balance weight 3, the safety that protective door 7 can guarantee people, animal is set, can opens it easily again oil pumper is carried out balance adjustment.

As shown in Figure 2, the articulated support arm respectively in the both sides of base 8, the upper end of support arm affixed unloading frame 9, the shoulder block by guide rail bracket 2 location is being set respectively on the dual-side of unloading frame 9, the upper surface of unloading frame 9 is parallel with the upper surface of base 8.When underground work need be unloaded balance weight, rotation unloading frame 9 was removed polished rod load, and balance weight 3 relies under the deadweight and is seated on the unloading frame 9, easily with balance weight 3 unloadings.

Claims

1, a kind of used for oil extractor guide type bascule, comprise base (8) and the balance weight (3) that links to each other with haulage cable (1), it is characterized in that: the guide rail bracket (2) that cross section is concave shape vertically is installed on the base (8), the guide rail (5) of positioned opposite vertically is installed respectively on relative left and right two walls in guide rail bracket (2), balance weight (3) the and arranged on left and right sides face middle part that is positioned at guide rail bracket (2) is equipped with respectively from top to bottom and is set upright roller (4) and guide roller (6), sets upright roller (4) and guide roller (6) along guide rail (5) rolling and by its location.

2, used for oil extractor guide type bascule according to claim 1, it is characterized in that: all have vertical chute that cross section is concave shape on two guide rails (5), the cooperation that contacts with two upright side walls of guide rail (5) chute of the wheel side face of setting upright roller (4), the wheel side face of guide roller (6) cooperation that contacts with the bottom surface of guide rail (5) chute.

3, used for oil extractor guide type bascule according to claim 1 is characterized in that: front and two sides in guide rail bracket (2) bottom are installed with the protective door (7) that has protective screening respectively.

4, used for oil extractor guide type bascule according to claim 1, it is characterized in that: at the articulated support arm of the both sides of base (8) difference, the upper end of support arm affixed unloading frame (9), shoulder block by guide rail bracket (2) location is being set respectively on the dual-side of unloading frame (9), and the upper surface of unloading frame (9) is parallel with the upper surface of base (8).