CN2167214Y

CN2167214Y - Chain wheel type oil pumping machine using low power

Info

Publication number: CN2167214Y
Application number: CN 93221777
Authority: CN
Inventors: 付鹤滨; 付美松
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-18
Filing date: 1993-08-18
Publication date: 1994-06-01
Anticipated expiration: 2003-08-18

Abstract

The utility model discloses a chain wheel type oil pumping machine that can reduce horse power of power equipment for oil field production, which takes the technical proposal that first, on the basis of former full numerical control pumping unit, the principle of labor saving of a movable chain wheel to add one or a plurality of sets of chain wheel groups composed of movable and stable chain wheels on both sides of the main frame is applied; second, the chain wheel groups are used as the middle medium, so aims of reducing the horse power of the power equipment and reducing the costs of complete machine are realized. The utility model also has the advantages of stable running, high capability, strong reliability and favorable effect of energy saving. The utility model can be reformed on the original basis and is convenient for installation and maintenance, so the utility model is very practical for oil field operations.

Description

Chain wheel type oil pumping machine using low power

The utility model belongs to a kind of equipment that recovers the oil from deep-well, especially a kind of can be on mechanical transmission the sprocket-type pumping unit of bigger reduction power equipment power.

At home, first generation pumping unit is by the non-stop run of motor constant speed, drives eccentric wheel, by the effect of lever, the well bar is done pumped, and mechanical reactive loss is bigger; The second generation is controlled pumping unit totally, the utilization equilibrium principle, side at derrick adds counterweight, and being equal in weight of the weight of counterweight and well bar drives mechanical driving part by motor clockwise and anticlockwise at intermittence, reach the oil recovery purpose, solved the problem of idle power consumption effectively, simultaneously, owing to adopted new and high technologies such as microcomputer control and RHVC, energy-saving effect is remarkable, but second generation pumping unit ubiquity the deficiency that power equipment power is big, the complete machine cost is high.

The purpose of this utility model be exactly to provide a kind of and can reduce power equipment power significantly, reduce the complete machine cost, operate steadily, the sprocket-type low-power pumping unit of job safety.

For achieving the above object, the technological scheme that the utility model is taked is: on the basis of existing total control pumping unit, utilization movable sprocket labour-saving principle, set up in the both sides of mainframe one group or array by moving, decide the chain wheel set that sprocket wheel is formed, it as the mechanically operated intermediary of pumping unit, is reduced the purpose of power equipment power, reduction complete machine cost with realization.

This pumping unit also designs the limit switch of guaranteeing job safety in a side of the outstanding counterweight of mainframe.

Pumping unit by the such scheme manufacturing has the following advantages:

1. adopt chain wheel set and supporting chain as mechanically operated intermediary, have characteristics such as operate steadily, bearing capacity is big, good balance effect, and power equipment power is little, cost is low;

2. the counterweight limit switch is set, good reliability, job safety is guaranteed;

3. the property transformed is strong on the original basis, simple in structure, installation and maintenance convenience.

Fig. 1 is the structural representation of sprocket-type low-power pumping unit;

Fig. 2 is a pumping unit power source partial schematic diagram.

Below in conjunction with drawings and Examples the utility model is described in further detail:

Among Fig. 1,

sprocket wheel

3,6 is decided with channel-section steel welding expenditure frame in two ends at mainframe 12 tops, connects

movable sprocket

2,10 with chain 4 again, and an end of chain 4 is fixed on to be decided on the sprocket wheel 3, the other end is fixed on the expenditure frame of mainframe 12, forms the chain wheel set as the mechanical transmission intermediary; Perforate penetrates well bar 1 and connects with bolt connecting mode on the steel plate of the wheel carrier bottom of movable sprocket 2, and identical therewith, counterweight 11 is connected the bottom of movable sprocket 10, and mainframe 12 both sides keep weight balancing; Power source 5 be installed in mainframe 12 the top, decide between the

sprocket wheel

3,6; One side of mainframe 12 outstanding counterweights, design has the position limit switch 9 of control counterweight stroke about in the of 11, and the Steel Spring Plate 8 and the limit switch 7 that guarantee job safety.

Pumping unit power source part shown in Figure 2, the shaft joint of motor 13 links to each other with retarder 14, and the output shaft of retarder 14 is connected with driving sprocket wheel 16 with key, and bearing 15 is used for support drive sprocket wheel 16, and chain 4 passes and its engagement from the bottom of driving sprocket wheel 16.

From Fig. 1, among Fig. 2 as can be seen, when the pumping unit operation, motor 13 in the power source 5 drives retarder 14 and turns clockwise, drive driving sprocket wheel 16 by retarder 14, driving sprocket wheel 16 is by chain 4

chain wheels

2,3 and 6,10, chain wheel set and supporting chain are as the mechanically operated intermediary of pumping unit, driving well bar 1 moves upward, counterweight 11 moves downward, when counterweight 11 moves to lower stroke switch 9, make motor 13 soft stopping by the computer transduce speed regulating control, drive retarder 14 with rear motor 13 and begin to be rotated counterclockwise, well bar 1 moves downward, counterweight 1 moves upward, when counterweight 11 ran to upper stroke switch 9, motor 13 began to drive retarder 14 again and turns clockwise, and motion reaches the purpose of oil pumping and so forth.Owing to utilized movable sprocket labour-saving principle, set up by moving, decide the chain wheel set that sprocket wheel is formed in the both sides of mainframe, thereby the variable frequency speed regulator apparatus that has reduced power of electric motor and matched with it, equal corresponding the reducing on former basis of the model of the weight of counterweight, retarder, cable, switch, chain in addition is so reached the purpose that reduces the complete machine cost.Limit switch 7 is the switches that use when position limit switch 9 is out of control, and it is fixed on the upper-lower position of Steel Spring Plate 8, when position limit switch 9 in a single day out of control, counterweight 11 touches Steel Spring Plate 8, and limit switch 7 is disconnected, and motor 13 stops the rotation, alarm activation, the safety of operation has been guaranteed in this design.

Claims

1, recover the oil and use the sprocket-type pumping unit in a kind of oil field that can reduce power equipment power, it is made up of mainframe (12), power source (5), well bar (1), counterweight (11), chain (4) and sprocket wheel, it is characterized in that: on the basis of original total control pumping unit, the both sides of mainframe (12) set up one group or array by moving, decide chain wheel set (2), (3) and (6), (10) that sprocket wheel is formed, as mechanically operated intermediary.

2, pumping unit according to claim 1 is characterized in that: a side of the outstanding counterweight (11) of mainframe (12), also design has Steel Spring Plate (8) and the limit switch (7) of guaranteeing job safety.