CN2789500Y

CN2789500Y - Beam-pumping unit bearing support

Info

Publication number: CN2789500Y
Application number: CN 200520020635
Authority: CN
Inventors: 杨彦夫; 杨继东
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-13
Filing date: 2005-04-13
Publication date: 2006-06-21
Anticipated expiration: 2015-04-13

Abstract

The utility model discloses a beam-pumping unit bearing support. A used bearing adopts a sliding bearing, and a sealing device is composed of a rubber sealing ring, a press cover pressed on the rubber sealing ring and a plurality of screw bolts, wherein the thickness of the rubber sealing ring is even and a plurality of round ring sealing grooves are arranged on the inner wall of the rubber sealing ring. A circular groove, the cross-section of which is in a wedge shape is arranged on the end surface of the rubber sealing ring, which is in contact with the press cover. A steel circular ring is also arranged between the groove and the press cover, and one side end surface of the steel circular ring, which contacts the groove is in a circular arc shape, an oval shape or a triangle shape. The maximum width of the end surface is close to the width of an opening of the groove, and the steel circular ring and the groove are concentric circles with equal radiuses. The utility model has the advantages that because a rolling bearing is replaced by the sliding bearing, the durability of the bearing support is obviously reinforced. A sealing device with a high performance is adopted, and a lubricated condition is improved. Trials proves that the operation of the designed beam-pumping unit is especially stable, and the oil seepage rate is very low. When the daily maintenance work amount is visibly reduced, the oil production is obviously enhanced.

Description

The pumping unit bearing support

Affiliated technical field

The utility model relates to the beam pumping unit bearing support that use in a kind of oil field, comprises central axis bearing and tailing axle bearing.

Background technique

At present, what its central bearing support of the employed beam pumping unit in oil field and tailing axle bearing adopted all is rolling bearing, so air-proof condition has relatively high expectations, and adds this equipment in addition and all is contained in field and running all the year round, its working environment is poor especially, and sealing difficulty is also quite big.Not only the line service amount is big to cause this pumping unit bearing support therefrom, and often reveal and cause damage of bearings owing to lubricant oil is serious, thereby the accident that causes pumping unit to stop production often takes place, and has not only obviously increased cost for oil production, has also significantly reduced crude output simultaneously.

Summary of the invention

In order to overcome above-mentioned deficiency, the utility model provides a kind of regular maintenance of being convenient to, and the good pumping unit bearing support of sealability.

In order to realize the purpose of foregoing invention, the utility model by the following technical solutions: the profile of bearing support is identical with existing design, and different is that bearing adopts sliding bearing.The seal arrangement of installing at sliding bearing axis hole two ends on the bearing support can also be by a thickness evenly, have the rubber seal of a plurality of annular seal grooves and a gland and an a plurality of bolt that is pressed on the rubber seal to constitute on the inwall.It is the groove of wedge shape that the end face that contacts with gland on rubber seal has an annular, section, between this groove and gland, also has a steel annulus, its side end face that contacts with groove is circular arc, ellipse or triangle, the Extreme breadth of this end face and the A/F of groove are approaching, and the steel annulus is the concentric circle that radius equates with groove.

The abscission ring opening of locating to tilt one of can also be set on the ring wall of above-mentioned rubber seal and/or steel annulus.

The utility model beneficial effect is: owing to replaced rolling bearing with sliding bearing, the serviceability of bearing support obviously strengthens, and adds and has adopted high performance seal arrangement, has also increased protective value greatly, has improved lubricating condition greatly from two aspects.Through probationary certificate, it is steady especially to adopt the pumping unit of this design not only to move, and the oil impregnate rate is also quite low, and in remarkable minimizing equipment line service amount, oil output also obviously is improved.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is done to describe in detail

Fig. 1 is a plan view of the present utility model

Fig. 2 partly cuts open a left view for the utility model

Fig. 3, Fig. 4, Fig. 5 are the structural representation of seal arrangement among the embodiment 1

Fig. 6 is embodiment 2 a structural representation

Embodiment

Example 1

As shown in Figure 1, the profile of bearing support pedestal 4 is identical with existing design, and bearing 8 adopts sliding bearing, and a following seal arrangement is respectively installed at sliding bearing 8 axis hole two ends on bearing support pedestal 4.The sealing device is seen Fig. 3 to Fig. 5, comprise a thickness evenly, the rubber seal 3 of a plurality of annular seal grooves 5 arranged on the inwall, be pressed in gland 1 and a plurality of bolt 7 on the rubber seal 3, it is the groove 6 of wedge shape that the end face that contacts with gland 1 in rubber seal 3 has an annular, section, between this groove 6 and gland 1, also has a steel annulus 2, its side end face that contacts with groove 6 is a circular arc, sees Fig. 3; Ellipse is seen Fig. 4; Or triangle, see Fig. 5.The A/F of the Extreme breadth of this end face and groove 6 is approaching, and the concentric circle that equates for radius of steel annulus 2 and groove 6.See Fig. 3 to Fig. 6 for details.

Example 2

As shown in Figure 6, all establish the abscission ring opening 9 and 10 that a place tilts on the ring wall of above-mentioned rubber seal 3 and steel annulus 2, all the other are with example 1.

With the upper sealing device is the applicant's patented technology, and more detailed content can also the REFERENCE TO RELATED people propose on April 18th, 2003, and application number is 03246656.0, name is called " seal arrangement on the speed reducer ".

Claims

1, a kind of pumping unit bearing support comprises pedestal, bearing and seal arrangement, it is characterized in that described bearing (12) is a sliding bearing.

2, a kind of pumping unit bearing support according to claim 1, it is characterized in that described seal arrangement is contained in bearing support pedestal (4) and goes up sliding bearing (8) axis hole two ends, its by a thickness evenly, the rubber seal (3) of a plurality of annular seal grooves (5) is arranged on the inwall, be pressed in gland (1) and a plurality of bolt (7) formation on the rubber seal (3); It is the groove (6) of wedge shape that the end face that contacts with gland (1) in rubber seal (3) has a ring-type, section, between this groove (6) and gland (1), also be provided with a steel annulus (2), its side end face that contacts with groove (6) is circular arc, ellipse or triangle, the A/F of the Extreme breadth of this end face and groove (6) is approaching, and the concentric circle that equates for radius of steel annulus (2) and groove (6).

3, a kind of pumping unit bearing support according to claim 2 is characterized in that also being provided with abscission ring opening (9) and/or (10) that a place tilts on the ring wall of described rubber seal (3) and/or steel annulus (2).