CN2503202Y

CN2503202Y - Wide-band beam-pumping unit

Info

Publication number: CN2503202Y
Application number: CN 01261665
Authority: CN
Inventors: 张兆喜; 王伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-12
Filing date: 2001-09-12
Publication date: 2002-07-31
Anticipated expiration: 2011-09-12

Abstract

The utility model relates to a wide-belt pumping unit for oil production. The pumping unit comprises a beam hanger, a dynamic wide belt, a head sheave, a counterbalance part, a commutation mechanism, a chain, chain wheels, a power shaft and a frame, wherein the beam hanger is connected at the lower end of the dynamic wide belt; the chain wheels engage with the chain; the chain wheels connect with the power shaft; the chain wheels include an upper chain wheel and a lower chain wheel; the chain is of circular closed type and is winded on the upper and the lower chain wheels; the commutation shaft of the commutation mechanism is connected on the chain via a coupling chain link; the commutation mechanism connects circles by the head sheave and connects with the dynamic wide belt. The utility model has the advantages of simple structure, rational design, light weight, easy manufacture, convenient installation and use, good running performance, low power and energy consumption, etc. The pumping journey can be randomly adjusted to satisfy the technological demands of long stoke, low stroke frequency and large load in oil production, so the utility model has a broad market prospect.

Description

The broadband type oil pumper

Technical field

The utility model relates to a kind of broadband type oil pumper, belongs to oil exploration industry equipment.

Background technology

On oil exploration industry, beam pumping unit is with simple in structure, easy to operate, and characteristics such as stable performance have obtained applying widely.Along with the continuous development of process for petroleum recovery, the weakness of beam pumping unit comes out gradually: on the one hand, heaviness, energy consumption is big; On the other hand, be subjected to the restriction of beam pumping unit quadric chain, be difficult to realize the technological requirement of long stroke, low jig frequency, big load.So, broadband type sprocket wheel oil pumper occurred, intake stroke can be regulated arbitrarily, can satisfy the technological requirement of long stroke, big load, as number of patent application is that 96241120.5 oil pumper just belongs to wherein a kind of, but, this oil pumper complex structure, manufacturing cost height, it is reasonable that designs such as changement are owed, messy dispersion is arranged in the broadband, has directly influenced its runnability, poor stability.

Summary of the invention

Technical problem to be solved in the utility model is: provide a kind of simple in structure, reasonable in design, in light weight, easy to manufacture, installation, easy to use, the broadband type oil pumper that runnability is good.

Broadband type oil pumper described in the utility model, comprise polished rod eye, power broadband, head sheave, counterweight, changement, chain, sprocket wheel, line shaft and frame, polished rod eye is connected the lower end in power broadband, sprocket wheel and chain are meshed, and sprocket wheel is connected with line shaft, and its sprocket wheel has upper and lower sprocket wheel, chain is the annular enclosed type chain, be looped around on the upper and lower sprocket wheel, the reversing shaft of changement is connected on the chain by connecting chain link, changement and the power broadband connection of walking around head sheave.

Wherein:

Changement is roller, guide tracked structure, and roller places between two guide rails, and roller shaft is connected with the reversing shaft of changement.Roller can roll along guide rail, is used for the adjustment of lateral attitude, realizes commutation.Roller can have side by side two or more, and 2～6 best, helps flexibility and load-carrying properties, can avoid the unbalance loading phenomenon again, and each roller is connected by joint cover, and the reversing shaft of changement is located on the joint cover.

Simple and compact for structure, reasonable in design, flexible movements, sensitive reversing, and bearing capacity is big, and reliable and stable, guaranteed reliable runnability.

Counterweight and the changement formula structure that links into an integrated entity.Be beneficial to the adjustment balance, can realize the polished rod load of polished rod and the uniformity of counterweight again, guaranteed the reasonability of oil pumper structure.

The power broadband is the wire rope rubber strip, and width is 1.2～1.4m.Tensile strength is big, and abrasion resistance is good, and is safe, durable, guarantees the security reliability of production run.

The utility model is simple in structure, and is reasonable in design, in light weight, easy to manufacture, installation, easy to use, flexible movements, sensitive reversing, and bearing capacity is big, and reliable and stable, runnability is good, power consumption is few, and energy consumption is low, and intake stroke can be regulated arbitrarily, can satisfy the technological requirement of oil exploitation long stroke, low jig frequency, big load, have vast market prospect.

Description of drawings

Fig. 1, the utility model one example structure schematic diagram.

Fig. 2, side schematic view of the present utility model.

Fig. 3, changement structural representation.

The A-A sectional view of Fig. 4, Fig. 3.

The B-B sectional view of Fig. 5, Fig. 3.

Among the figure: 1 polished rod eye, 2 power broadbands, 3 head sheaves, 4 upper sprocket wheels, 5 chains, 6 changements, 7 lower sprockets, 8 reducers, 9 motor, 10 bases, 11 ballast boxes, 12 frames, 13,16 upper and lower guide rails, 14 joint covers, 15 reversing shafts, 17 rollers.

The specific embodiment

The utility model is described in further detail in conjunction with the foregoing description accompanying drawing.

As Fig. 1, shown in 2, broadband type oil pumper described in the utility model, polished rod eye is arranged, 1.3m wide wire rope rubber power broadband 2, head sheave 3, ballast box 11, changement 6, chain 5, last lower sprocket 4,7, the output power shaft of reducer 8 and frame 12, polished rod eye 1 is connected the lower end in power broadband 2, sprocket wheel 4,7 and chain 5 be meshed, sprocket wheel 7 is connected with line shaft, chain 5 is the annular enclosed type chain, be looped around, lower sprocket 4, on 7, the reversing shaft of changement 6 is connected on the chain 5 by connecting chain link, changement 6 is connected with the power broadband 2 of walking around head sheave 3, and ballast box 11 links together with changement 6.

Shown in Fig. 3,4,5, changement is roller, guide tracked structure, and two

rollers place

13,16 on two guide rails, and roller is connected by joint cover 14, and the reversing shaft 15 of changement is located on the joint cover.

Running of the present utility model is:

The output power shaft drive sprocket 7 of reducer 8, sprocket wheel 7 drives closed chain 5 and moves, and the changement 6 that is connected on the chain 5 just moves thereupon.When chain 5 hauled the upper and lower dead point of changement 6 arrival, changement 6 was by the adjustment of its roller and guide rail, and the operation that commutates is to realize moving up and down of changement support body.Power broadband 2 is connected on the changement support body, and along with the operation of changement support body, realize pumping in the power broadband, and therefore, the polished rod eye 1 that is connected under the power broadband 2 drags polished rod realization reciprocating motion.The changement support body connects ballast box 11, by adjusting the balancing weight in the ballast box 11, guarantees the relative equilibrium in the oil pumper reciprocating motion.

Claims

1, a kind of broadband type oil pumper, comprise polished rod eye, power broadband, head sheave, counterweight, changement, chain, sprocket wheel, line shaft and frame, polished rod eye is connected the lower end in power broadband, sprocket wheel and chain are meshed, and sprocket wheel is connected with line shaft, it is characterized in that sprocket wheel has upper and lower sprocket wheel, chain is the annular enclosed type chain, be looped around on the upper and lower sprocket wheel, the reversing shaft of changement is connected on the chain by connecting chain link, changement and the power broadband connection of walking around head sheave.

2, oil pumper according to claim 1 is characterized in that changement is roller, guide tracked structure, and roller places between two guide rails, and roller shaft is connected with the reversing shaft of changement.

3, oil pumper according to claim 2, the roller that it is characterized in that changement have side by side two or more, are connected by joint cover, and the reversing shaft of changement is located on the joint cover.

4, oil pumper according to claim 3 is characterized in that the roller of changement has 2～6 side by side.

5,, it is characterized in that counterweight and the changement formula structure that links into an integrated entity according to claim 1 or 2 or 3 or 4 described oil pumpers.

6, oil pumper according to claim 5 is characterized in that the power broadband is the wire rope rubber strip.

7, oil pumper according to claim 6, the width that it is characterized in that the power broadband is 1.2～1.4m.