CN201851091U

CN201851091U - Beam-pumping unit

Info

Publication number: CN201851091U
Application number: CN2010205831776U
Authority: CN
Inventors: 卢伟; 郭兆勇
Original assignee: TIANJIN RING-TOP PETROLEUM MANUFACTURE CO LTD
Current assignee: TIANJIN RING-TOP PETROLEUM MANUFACTURE CO LTD
Priority date: 2010-10-29
Filing date: 2010-10-29
Publication date: 2011-06-01
Anticipated expiration: 2020-10-29

Abstract

The utility model discloses a beam-pumping unit, which comprises a support assembly, a motor, a speed reducer, a walking beam, a mule head, a crank, a balancing block and an oscillating bar. The motor and the speed reducer which are in linkage are mounted on the support assembly, the walking beam is hinged with the support assembly via a rotating shaft, the mule head is located at a free oscillating end of the walking beam, the crank is connected onto an output shaft of the speed reducer, the balancing block is fixed on the crank, the oscillating bar is hinged between the free oscillating bar of the crank and the walking beam, the end head, which is adjacent to the mule head, of the walking beam is hinged with the oscillating bar, the end head, which is far away from the mule head, of the walking beam is hinged with the support assembly via the rotating shaft, an output shaft of the speed reducer is connected with the middle of the crank, one end of the crank is hinged with the oscillating bar, and the balancing block is located at the other end of the crank. The beam-pumping unit has the advantages that the output shaft of the speed reducer is connected with the middle of the crank, one end of the crank is hinged with the oscillating bar, the balancing block is located at the other end of the crank, so that force couple distributed reasonably is formed, and energy consumption is saved to a certain degree.

Description

A kind of oil pumper

Technical field

The utility model relates to a kind of pump machinery of operation of oil field that is used for, and relates in particular to a kind of oil pumper.

Background technology

Oil pumper generally comprises bracket assembly, be installed on the bracket assembly motor of interlock mutually and reductor, with bracket assembly by the hinged walking beam of rotating shaft, at the horse head of walking beam free pendulum moved end, be connected crank, the balance weight that is connected with crank on the speed reducer output shaft, be hinged on the fork between crank free pendulum moved end and the walking beam.

Motor drives the crank rotation by reductor, drives walking beam reciprocally swinging around the shaft by fork during the crank rotation, and the horse head of walking beam free pendulum moved end is then pumped by the traction of outstanding rope.

The fork that is used to drive walking beam in the prior art has two, one end of two contiguous walking beams of fork connects by crossbeam, walking beam is hinged away from position, termination and this crossbeam of horse head, and bracket assembly is supported on the middle part of walking beam by rotating shaft and cooperating of bearing, its fulcrum is positioned at the walking beam middle part when being the walking beam swing, one end and the fork of walking beam are hinged, and the other end is a horse head.But so the walking beam type of drive energy transformation ratio that is provided with is lower, horse head one end rises still to descend all needs motor to have bigger output could drive the walking beam swing, speed reducer output shaft is connected an end of crank in addition, and the other end of crank and fork are hinged, balance weight is usually located at the middle part of crank, it is unreasonable that couple is arranged, so the layout of the selection of walking beam fulcrum and crank, balance weight all has considerable influence to the motion and the energy consumption of horse head, requires further improvement.

The utility model content

The utility model discloses a kind of oil pumper, improved the layout of walking beam fulcrum and crank, balance weight, saved motor output, realized the reduction of energy consumption.

A kind of oil pumper, comprise bracket assembly, be installed in the motor and the reductor that link mutually on the bracket assembly, with bracket assembly by the hinged walking beam of rotating shaft, be positioned at the horse head of walking beam free pendulum moved end, be connected the crank on the speed reducer output shaft, be fixed on the balance weight on the crank, be hinged on the fork between crank free pendulum moved end and the walking beam, the position, termination and the fork of the contiguous horse head of described walking beam are hinged, walking beam is hinged by rotating shaft and bracket assembly away from the termination of horse head, described speed reducer output shaft is connected with the crank middle part, one end and the fork of crank are hinged, and described balance weight is positioned at the other end of crank.

Described crank and fork all have two, the both sides that are distributed in reductor of symmetry, and an end of two contiguous walking beams of fork connects by crossbeam, and the position, termination of the contiguous horse head of described walking beam is hinged on this crossbeam by rotating shaft.

The beneficial effects of the utility model are that speed reducer output shaft is connected with the crank middle part, one end and the fork of crank are hinged, balance weight is positioned at the other end of crank, form the couple that rationally distributes, the fulcrum of walking beam is changed into the termination of walking beam away from horse head, can only depend on its gravity to drive like this when horse head descends, energy consumption has been saved in only acting when horse head rises of motor to a certain extent.

Description of drawings

Fig. 1 is the structural representation of the utility model oil pumper.

Fig. 2 is the structural representation at the utility model oil pumping machine crank and balance weight position.

The specific embodiment

Referring to accompanying drawing, the utility model oil pumper comprises bracket assembly, and bracket assembly comprises base 8, the triangular framing that base 8 and first cant beam 10 on it and column 9 constitute.

Be provided with second cant beam 12 that extends on tiltedly at base 8 one ends, peak at triangular framing is extended with the 3rd cant beam 11 on tiltedly, intersect on the top of the top of second cant beam 12 and the 3rd cant beam 11, and wherein the peak of the intersection point of second cant beam 12 and base 8 and triangular framing roughly lays respectively at the two ends of base 8.

The motor and the reductor 7 of interlock are installed on the base 8 mutually, and motor drives reductor by the belt pulley on the reductor 76.

Crank and fork all have two, the both sides that are distributed in reductor 7 of symmetry, and in conjunction with Fig. 1,2 as seen, the output shaft 15 of reductor 7 is connected crank 5 middle parts, and crank 5 one ends link to each other with fork 3, and balance weight 14 is positioned at the other end of crank 5.Omitted the part crank 5 and the balance weight that are in the outside among Fig. 1, in fact every crank all fixedly is equipped with balance weight, as seen is in inboard balance weight 14 among Fig. 1.

One end of two contiguous walking beams 2 of fork connects by crossbeam 18, and the position, termination of walking beam 2 contiguous horse heads 1 is hinged on this crossbeam 18 by rotating shaft 4.Walking beam 2 is hinged away from the top and the intersection area on the top of the 3rd cant beam 11 by the rotating shaft 17 and second cant beam 12, the termination of horse head 1.

For the ease of ascend operation, be distributed with ladder 13 along second cant beam 12.Periphery at base 8 is provided with safety barrier 16.

During the work of the utility model oil pumper, motor drives crank 5 rotations by reductor 7, the movement locus of the termination that crank 5 is connected with fork 3 can be referring to the B among figure circle, can be referring to the circle of the A among the figure and be in the movement locus of outer rim of the balance weight 14 of crank 5 other ends.

Crank 5 rotating band movable pendulum bars 3 drive the position, termination that walking beam 2 is close to horse heads 1 then, make walking beam 2 17 reciprocally swingings around the shaft.

Because rotating shaft 17 is positioned at the termination position of walking beam 2 away from horse head 1, horse head 1 can only depend on its gravity to drive when descending, and motor is acting when horse head 1 rises only, has saved energy consumption.

Claims

1. oil pumper, comprise bracket assembly, be installed in the motor and the reductor that link mutually on the bracket assembly, with bracket assembly by the hinged walking beam of rotating shaft, be positioned at the horse head of walking beam free pendulum moved end, be connected the crank on the speed reducer output shaft, be fixed on the balance weight on the crank, be hinged on the fork between crank free pendulum moved end and the walking beam, it is characterized in that, the position, termination and the fork of the contiguous horse head of described walking beam are hinged, walking beam is hinged by rotating shaft and bracket assembly away from the termination of horse head, described speed reducer output shaft is connected with the crank middle part, one end and the fork of crank are hinged, and described balance weight is positioned at the other end of crank.

2. the oil pumper of energy-saving type as claimed in claim 1, it is characterized in that, described crank and fork all have two, the both sides that are distributed in reductor of symmetry, one end of two contiguous walking beams of fork connects by crossbeam, and the position, termination of the contiguous horse head of described walking beam is hinged on this crossbeam by rotating shaft.