CN2323171Y

CN2323171Y - Long stroke energy-saving pumping unit

Info

Publication number: CN2323171Y
Application number: CN 98204316
Authority: CN
Inventors: 周世海
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-05-05
Filing date: 1998-05-05
Publication date: 1999-06-09
Anticipated expiration: 2008-05-05

Abstract

The utility model relates to an energy-saving pumping unit, which is composed of a driving device, a crank, a small connecting rod, a big connecting rod, a walking beam, and a horse head, wherein, the middle part of the walking beam is hinged on a bearing seat of a bracket; a steel cable is arranged on the horse head; the crank is connected with the upper side of an output shaft of the driving device; the other end of the crank is provided with a balance iron; the big connecting rod is hinged at the middle part of the crank; a triangle support arm is hinged between the walking beam and a cross beam which is arranged at the upper end of the big connecting rod; the small connecting rod is hinged between the lower part of the bearing seat and the triangle support arm. The utility model has the advantages of the stroke of the steel cable increase, and energy saving.

Description

Increase the journey energy-saving pumping unit

The utility model relates to a kind of journey energy-saving pumping unit that increases, the usefulness of main fuel feeding field oil recovery.

Prior art is seen Fig. 3.The output shaft 16 of drive transmission (containing motor 25, belt transmission secondary 14 and speed reducer 15) speed reducer drives crank 17 and rotates, and balance iron 18 is arranged on the crank.Connecting rod 19 lower ends and crank are hinged, and upper end and walking beam 20 tail ends are hinged, and the walking beam middle part is articulated on the bearing support 22 of support 21, and the walking beam front end has horse head 23.During use, drive transmission drives crank and rotates around output shaft 16, and rotate around the axle center of bearing support 22 respectively the front end and back end that drives walking beam by connecting rod 19, and the wire rope 24 on the horse head is with the crude oil extraction in the oil well.The deficiencies in the prior art part is: it is little that walking beam swings up and down angle, and the wire rope stroke is short.Need to be equipped with more powerful motor.

The purpose of this utility model is to overcome above-mentioned deficiency of the prior art and a kind of journey energy-saving pumping unit that increases is provided.

The purpose of this utility model can reach by following measure: the utility model is formed by driving slewing gear, crank, small rod, big connecting rod, walking beam and horse head, the walking beam middle part is articulated on the rack shaft holder, wire rope is arranged on the horse head, be connected with crank on the output shaft of drive transmission, crank end in addition has balance iron, big connecting rod is articulated in the crank middle part, is hinged with the triangle support arm between the crossbeam of walking beam and big connecting rod upper end, is hinged with small rod between bearing support bottom and the triangle support arm.

The drawing of accompanying drawing is described as follows:

Fig. 1 is total figure of the present utility model;

Fig. 2 be the A of Fig. 1 to partial view, the hinged relationship schematic representation between expression walking beam, bearing support, triangle support arm, small rod and the crossbeam;

Fig. 3 is total figure of prior art.

The representative of accompanying drawing piece number:

1 bearing support, 2 bearing pins, 3 small rods, 4 triangle support arms, 5 bearing pins, 6 bearing pins

7 bearing pins, 8 crossbeams, 9 big connecting rods, 10 cranks, 11 circular arcs, 12 circular arcs

Secondary 15 speed reduceres, 16 output shafts of 13 bearing pins, 14 belt transmission 17 cranks

18 balance iron, 19 connecting rods, 20 walking beams, 21 supports, 22 bearing supports, 23 horse heads

24 wire rope, 25 motors

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

Fig. 1 and Fig. 2 represent general structure of the present utility model.Walking beam 20 middle parts are articulated on the bearing pin 13 of the bearing support 1 on the support 21, increase bearing pin 2 on the bearing support 1, and small rod 3 is articulated on the bearing pin 2 with bearing support 1.The end in addition of small rod is articulated on the bearing pin 5 of triangle support arm 4, and hinged at the bearing pin 6 of beam travelling tail end top and triangle support arm, crossbeam 8 is hinged with the bearing pin 7 of triangle support arm.

The walking beam two ends respectively are connected with a big connecting rod 9, and big connecting rod lower end and crank 10 middle parts are hinged.During use, drive transmission drives crank 10 and rotates around output shaft 16 centers, be circular arc 11 operations on the big connecting rod lower end edge figure, big connecting rod upper end (bearing pin 7 that contains the triangle support arm) should rise to higher position, but, can only rise along circular arc 12, thereby increase the pivot angle of triangle support arm upper pin 6 around 1 center 13 of bearing support because of triangle support arm bearing pin 5 is subjected to the tractive of small rod 3, promptly increased the pivot angle of horse head 20 and the path increment of wire rope, the stroke increment of present embodiment is 50%.If when still keeping original stroke, promptly reduce the distance of big connecting rod lower end to the output shaft center, can reduce output torque and motor driving power.Present embodiment reduces 50% of motor output power, thereby has reached purpose of energy saving.

The utility model contrast prior art has that to increase the steel wire rope stroke and reduce power of motor be energy savings Advantage.

Claims

1, a kind of journey energy-saving pumping unit that increases, comprise drive transmission, walking beam and horse head, the walking beam middle part is articulated on the rack shaft holder, wire rope is arranged on the horse head, be connected with crank on the output shaft of drive transmission, crank end in addition has balance iron, it is characterized in that, big connecting rod is articulated in the crank middle part, is hinged with the triangle support arm between the crossbeam of walking beam and big connecting rod upper end, is hinged with small rod between bearing support bottom and the triangle support arm.