CN2349379Y

CN2349379Y - Low ecentric barbell type walking beam composite balance oil pump

Info

Publication number: CN2349379Y
Application number: CN 98218241
Authority: CN
Inventors: 季祥云; 于胜存; 罗仁全; 赵卫东; 魏玉震; 张万江
Original assignee: XINJIANG UYGUR AUTONOMOUS REGION NO 3 MACHINE TOOL WORKS
Current assignee: XINJIANG UYGUR AUTONOMOUS REGION NO 3 MACHINE TOOL WORKS
Priority date: 1998-08-17
Filing date: 1998-08-17
Publication date: 1999-11-17
Anticipated expiration: 2008-08-17

Abstract

The utility model relates to a low eccentric barbell type walking beam composite balance oil pump. The tail part of the walking beam is provided with a low eccentric barbell type balance device which is composed of a supporting board, a transverse shaft, and a balance block. The structure of the original walking beam oil pump is not changed basically. The utility model has the advantages of compact structure, high safety, strong operability, and big range of moment change. Besides, the power can be saved by more than 40%. The utility model can be applied to the existing conventional walking beam oil pumps with various types. The energy saving modification of a non-synchronous crank oil pump and the walking beam composite balance oil pump, or the modification of oil pumping capacity improvement of the non-synchronous crank oil pump and the walking beam composite balance oil pump, after the conventional walking beam 3 type oil pump is modified, under the condition that a drive motor is not changed, the utility model can achieve the working performance of a 4 type oil pump.

Description

Down eccentric barbell type walking beam compound balanced pumping unit

The utility model belongs to novel energy-conserving oil recovery facility in the petroleum industry field, is a kind of novel energy-conserving beam pumping unit.

Main facility--beam pumping unit as the oil field oil recovery, because its counterbalance effect is relatively poor, Peak torque is big, has been forced to select for use the excessive motor of power in the design, cause energy waste and electricity shortage, the energy-saving and cost-reducing leading indicator that has become the examination of pumping unit optimal design, for this reason, the energy-saving pumping unit of Chu Xianing has belt conveyer in recent years, chain making machine and special-shaped walking beam machine etc., but since these model structure complexity, the critical component poor reliability, and be difficult to promote.

It is constant substantially that goal of the invention of the present utility model is 1. to propose a kind of structure of former beam pumping unit that keeps, and can save energy, and 2. the novel beam formula pumping unit that increases lifting capacity carries out reducing energy consumption to existing common beam pumping unit.

Goal of the invention of the present utility model realizes by following measure: be equipped with by dunnage at the walking beam afterbody, the down eccentric barbell type Equilibrator that transverse axis and equilibrium block are formed, dunnage is contained in the bottom of beam travelling tail end, transverse axis is contained on the dunnage, on the transverse axis of dunnage both sides, carry additionally equilibrium block, shape such as barbell.

The utility model is in oil pumping process, when torque is maximum, walking beam afterbody barbell type Equilibrator is because biasing, its center of gravity is on the horizontal line of walking beam gyration center, the counterbalance moment maximum that produces with the balance moment of crank compound action, has been cut down the peak value torque of oil pumping process effectively, reached the optimum efficiency of composite balance, this is that existing composite beam-balance pump institute is inaccessible.

Below by drawings and Examples the utility model is further described.

Fig. 1 is structural representation Fig. 2 of the present utility model k-k that is Fig. 1 to schematic diagram Fig. 3 is that to look schematic diagram Fig. 5 be that schematic side view Fig. 6 of Fig. 4 is that to look schematic diagram Fig. 7 be that schematic side view Fig. 8 of Fig. 6 is that to look schematic diagram Fig. 9 be that schematic side view Figure 10 of Fig. 8 is that to look schematic diagram Figure 11 be that the master that the walking beam afterbody of the utility model embodiment 5 installs the biasing balance weight additional looks the schematic side view that schematic diagram Figure 12 is Figure 11 for master that the walking beam afterbody of the utility model embodiment 4 installs the biasing balance weight additional for the master of the fine-tuning biasing balance weight of the utility model embodiment 3 centers of gravity for master that the walking beam afterbody of the utility model embodiment 2 installs the biasing balance weight additional for master that walking beam afterbody that balance weight movement locus schematic diagram Fig. 4 of the present utility model is the utility model embodiment 1 installs the biasing balance weight additional

Embodiment 1: dunnage 2 is anchored on the tail end bottom of walking beam 1 by bolt 10, needs according to bending moment, dunnage 2 can be done the relative position change with walking beam 1, have some positioning holes 9 on the dunnage 2, transverse axis 3 inserts in the positioning hole 9 of dunnage 2, equilibrium block 4 added from dunnage 2 both sides hang on the transverse axis 3, shape such as barbell have been realized change position of centre of gravity bending moment and plus-minus weight bending moment.

Embodiment 2: be equipped with on the walking beam 1 and adjust bolt 11, walking beam 1 tail end along continuous straight runs has some connecting hole 13, dunnage 2 vertically has some connecting hole 13, hinged walking beam 1 and dunnage 2 with bolt 12 by connecting hole 13, can change the relative position of walking beam 1 and dunnage 2 by connecting hole 13, realize bending moment, adjust the hinge angle realization bending moment that bolt 11 changes dunnage 2 and walking beam 1.

Embodiment 3: bar-bell type equilibrium block 4 is fixed on the dunnage 2, has some holes 17 vertically, by changing the position of plug 14 in hole 17, realizes the displacement of center of gravity bending moment of equilibrium block 4, and the quantity that also can add and subtract plug 14 realizes bending moment.

Embodiment 4: be equipped with in the lower end of dunnage 2 and corresponding location, the hole of equilibrium block 4 transverse axis 3, change the position of carrying additionally of equilibrium block 4, realize bending moment.

Example 5: dunnage 2 is mounted on the afterbody of walking beam 1, on the leading screw 16 assembling walking beams 1, nut 15 is assemblied on the dunnage 2, shaking leading screw 16 moves dunnage 2 on walking beam 1, realize bending moment, movable supporting plate 19 is hinged on the dunnage 2 by bearing pin 18, and equilibrium block 4 adds the both sides that hang over movable supporting plate 19 by transverse axis 3, and movable supporting plate 19 can rotate around bearing pin 18 and realize bending moment.

Down eccentric barbell type walking beam compound balanced pumping unit of the present utility model is in operation, the center of gravity running orbit of the barbell type Equilibrator of walking beam 1 afterbody is one section circular arc, when center of gravity is on the horizontal line of walking beam gyration center, its gravitational moment maximum, when center of gravity during near the vertical line of walking beam gyration center, its gravitational moment minimum, the utility model be exactly according to this bending moment principle dexterously with the crank balance compound action, satisfy the demand of pumping unit moment variations in oil pumping process, reach the effect of cutting down Peak torque.Equilibrator is the barbell shape, and it is bending moment flexibly not only, and is in operation and has made full use of retarder 5, crossbeam 6, the useful space between connecting rod 7 and the support 8 provides enough following deviators for the center of gravity of barbell type Equilibrator, has given assurance for selecting optimum focus position; For satisfying the trimming moment requirement, carry additionally the quantity of equilibrium block, have enough spaces.

The utility model also can be used for the existing various model common beam pumping units in oil field, the reducing energy consumption of phased crank pumping unit and walking beam compound balanced pumping unit, or above-mentioned pumping unit done the transformation that improves the oil pumping ability, after common beam 3 type machines are transformed, under the constant situation of drive motor, can reach the service behaviour of 4 type machines, have compact structure, safe and reliable, workable, torque conversion range is big, the advantage of economize on electricity more than 40%.

Claims

1. down eccentric barbell type walking beam compound balanced pumping unit, it is characterized in that, be equipped with at walking beam (1) afterbody, by dunnage (2), the down eccentric barbell type Equilibrator that transverse axis (3) and equilibrium block (4) are formed, dunnage (2) is contained in the bottom of walking beam (1) tail end, and transverse axis (3) is contained on the dunnage (2), on dunnage (2) both sides transverse axis (3), carry additionally equilibrium block (4), shape such as barbell.

2. down eccentric barbell type walking beam compound balanced pumping unit as claimed in claim 1, it is characterized in that, dunnage (2) is anchored on the tail end bottom of walking beam (1) by bolt (10), dunnage (2) can be done the relative position change with walking beam (1), have some positioning holes (9) on the dunnage (2), transverse axis (3) inserts in the positioning hole (9) of dunnage (2), equilibrium block (4) is added from dunnage (2) both sides hang on the transverse axis (3) shape such as barbell.

3. down eccentric barbell type walking beam compound balanced pumping unit as claimed in claim 1, it is characterized in that, be equipped with on the walking beam (1) and adjust bolt (11), walking beam (1) tail end along continuous straight runs has some connecting hole (13), dunnage (2) vertically has some connecting hole (13), it is hinged to pass through connecting hole (13) with bolt (12), can change the relative position of walking beam (1) and dunnage (2) by connecting hole (13).

4. down eccentric barbell type walking beam compound balanced pumping unit as claimed in claim 1 is characterized in that bar-bell type equilibrium block (4) is fixed on the dunnage (2), has some holes (17) vertically.

5. down eccentric barbell type walking beam compound balanced pumping unit as claimed in claim 1 is characterized in that, corresponding location, the hole transverse axis (3) with equilibrium block (4) is housed in the lower end of dunnage (2).

6. down eccentric barbell type walking beam compound balanced pumping unit as claimed in claim 1, it is characterized in that, dunnage (2) is mounted on the afterbody of walking beam (1), on leading screw (16) the assembling walking beam (1), nut (15) is assemblied on the dunnage (2), shaking leading screw (16) makes dunnage (2) upward move at walking beam (1), movable supporting plate (19) is hinged on the dunnage (2) by bearing pin (18), equilibrium block (4) adds the both sides that hang over movable supporting plate (19) by transverse axis (3), and movable supporting plate (19) can rotate around bearing pin (18).