CN2179918Y

CN2179918Y - Energy-saving counterweight balanced chain beam-pumping unit

Info

Publication number: CN2179918Y
Application number: CN 93211950
Authority: CN
Inventors: 赵杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-05
Filing date: 1993-05-05
Publication date: 1994-10-19
Anticipated expiration: 2003-05-05

Abstract

The utility model relates to an energy-saving counterweight balanced chain beam-pumping unit, composed of a machine body, a power drive mechanism, a reversing device, a balanced device and a suspension device. The utility model is characterized in that all drive chains use mine-used round link chains; the reversing device is a swinging rod type reciprocating frame, and the swinging rod is connected with a special integral chain link on a rotary chain; the balanced device is composed of a balance wheel, a reverse wheel, a balanced chain wheel and a counterweight connected with the balanced chain wheel; as to the suspension device, two grooved wheels arranged at the top replace a hoisting sheave with a large structure. The utility model has the advantages of high intensity, high stability, strong overload capacity and simple and compact structure.

Description

Energy-saving counterweight balanced chain beam-pumping unit

The utility model relates to a kind of oil recovery chain type pumping unit, relates in particular to a kind of energy-saving counterweight balance chain type pumping unit.

Existing chain type pumping unit as shown in Figure 1, 2, it is made up of institutes such as body, power-transmitting unit, reversing arrangement, Equilibrator, suspension arrangements, its main structure is: after motor 1 slows down by belt component 2, retarder 3, moment of torsion is passed to drive sprocket 4, and by made revolution chain 5 do continuous rotation motion by movable sprocket 8.Reversing arrangement is by the specific links 6 that is provided with of revolution chain 5, and by the linking to each other of this chain link 6 and round frame 7, and round frame 7 is pumped along guide rail.Equilibrator is made up of the balance chain 12, balance sprocket wheel 13, compensating cylinder 11, air reservoir 10, the pressure fan 14 that link to each other with round frame 7 belows, and Equilibrator is realized the balance requirement of pumping unit thus.Coming and going frame 7 tops links to each other with clamp holder 16 and forms suspension arrangement by crown sheave 9, wire rope 17.The pumping unit of this kind structure has long stroke, low jig frequency, big, the efficient advantages of higher of lifting load, especially the specific links on it is easily curved because of its axle journal but because its revolution chain adopts its intensity difference of general bush roller chain, fragile, so working life is low, the king-pin axis of specific links and slideway cause kinematic accuracy to descend and the failure force quickening in use for some time also because of wearing and tearing just can not keep vertical relation in addition; And its round frame comes and goes not only poor lubrication of frame because of adopting present slide track type structure and the structure that is connected with chain link 6 with the back side to make, and component wear is serious, and inconvenient maintenance; And used pneumatic equalizer is formed reasons such as the many and pipeline leakage of link because of it, so complex structure, working pressure is difficult to assurance causes fluctuation of service, and motor often is in peak load and influences its life-span.In addition, crown sheave is bigger in suspension arrangement, also makes the pumping unit structure not compact.

The purpose of this utility model is to design a kind of energy-saving counterweight balance chain type pumping unit that can improve the new structure of above-mentioned shortcoming, so that the pumping unit compact structure, the bulk strength height, good balance effect, motor can be in work under the normal duty, long service life, energy-conservation and use, easy to maintenance.

The purpose of this utility model is to realize like this, a kind of energy-saving counterweight balance chain type pumping unit includes body, power-transmitting unit, reversing arrangement, Equilibrator, suspension arrangement to be formed, and wherein power-transmitting unit includes motor, retarder, drive sprocket, driven sprocket, circumversion chain, it is characterized in that circumversion chain, the balance chain in the Equilibrator in the power-transmitting unit all adopt the high circle chain of mine of intensity; Reversing arrangement is that a swing link type comes and goes device, and it is by support body, fork and place the specific links on the revolution chain to be formed, and wherein fork one end is arranged on the support body center line, and its other end links to each other with specific links and the curve bath on the support body and swinging; Described Equilibrator by the balance chain that links to each other with round frame below, be located at the balance sprocket wheel of frame below and be arranged on the frame upper cross-beam the commutation sprocket wheel and and walk around the weight that the balance chain the other end of above-mentioned two sprocket wheels is connected and formed; Described suspension arrangement is by the steel wire that links to each other with round frame top, reach the clamp holder that links to each other with the steel wire the other end and formed with being located at two sheaves on the frame beam around steel wire.

The pumping unit of above-mentioned new structure, owing to adopted the high circle chain of mine of intensity, balancing weight unit and swing link type to come and go novel structures such as frame, make pumping unit realize goal of the invention, and, suspension arrangement replaced the very big crown sheave of size because of having adopted the less sheave of two sizes, so structure is more compact, rationally, and less energy consumption.

With drawings and Examples, structure of the present utility model more is described in detail below.

Description of drawings:

Fig. 1 is the structural representation of existing chain type pumping unit.

Fig. 2 is the side view of Fig. 1.

Fig. 3 is the structural representation of weight chain type pumping unit of the present utility model.

Fig. 4 is the side view of Fig. 3.

Fig. 5 is the structural representation of reversing arrangement part among Fig. 3.

Fig. 6 is an A-A sectional drawing among Fig. 5.

Fig. 7 is the structural representation of specific links.

Fig. 8 is the utility model schematic perspective view.

By shown in Fig. 3～8 as seen, the energy-saving counterweight balance chain type pumping unit of present embodiment is made up of body, power-transmitting unit, reversing arrangement, Equilibrator, suspension arrangement.Wherein:

Power-transmitting unit is formed (referring to Fig. 3,4) by motor 21, retarder 22, drive sprocket 23, driven sprocket 24, circumversion chain 25, and wherein motor 21 is for the permanent torque motor of double speed and add with fluid coupling and cooperate.Make the motor bearing capacity can increase to several times of rated power like this, and have overload protective function and reduce the effect that transmission system is hit;

Reversing arrangement is that a swing link type comes and goes frame, it is made up of the specific links 251 on support body 26, fork 27 and the revolution chain 25, on support body 26, be provided with a curve bath 261, one end of fork 27 is articulated on the support body center line, its the other end is hinged with the specific links 251 of revolution chain 25, fork 27 left and right swing in curve bath 261 under the drive of revolution chain 25, and drive support body 26 upper and lower back and forth movements.Articulating point 271,272 all can adopt bearing, so sealing, lubricating condition is good, wearing and tearing are few, and functional reliability is good.Be located at the support body front because fork 27 engaged with being connected of specific links 261 in the present embodiment, will make things convenient for manyly so installation, maintenance was arranged at the back side more originally.

Equilibrator is a balancing weight unit, balance chain 28, the balance sprocket wheel 29 that it is linked to each other by saddle body 26 belows and be located at the commutation sprocket wheel 32 on the frame beam 31 and formed with the balance weight 33 that the balance chain the other end is connected.

Suspension arrangement by the wire rope 34 that is connected with support body 26 tops be located at body crossbeam 31 on two

sheaves

35,36 and the clamp holder 37 that links to each other with wire rope 34 the other ends formed.In this suspension arrangement, owing to adopted and have two

less sheaves

35,36 of certain pitch diameter and replaced the huge crown sheave of diameter 19, therefore make structure compact greatly and rationally, and weight also alleviate greatly.

Above-mentioned circle chain of mine as seen from Figure 7, it is a kind of chain of thimble structure shape, thus since each interchain pitch correct it can transmit with chain crop rotation engagement, and intensity is much higher than general bush roller chain.Be not afraid of dust so simple in structure its of this in addition hoop chain exposes to when outer, can greatly simplify thereby make the pumping unit fuselage seal this challenge, promptly simple in structure, cost is low.For this reason, body 30 is by being made up of support 301, fuselage 302 and crossbeam 31 in the present embodiment, and fuselage can be a body member, and its two side is a framework, and its forward and backward both sides are unenclosed construction.

In order to improve the intensity of specific links 251 on the revolution chain 25, this chain link is adopted integrated chain pin structure in the present embodiment, it by the active bearing pin 2511 that can be connected with support body 26 and therewith initiatively the bearing pin annulus 2512 of becoming one formed.This chain link links mutually owing to fork 27, so when the left and right swing of fork, make chain link except with the revolution chain upper and lower motion, also can do left and right moving, thereby make this chain link 251 can remain the translation state, even also the axis of the active bearing pin of chain link keeps vertical relation with slideway all the time relative to main, passive centre of sprocket, so just improved original off plumb disadvantage, it is vertical that the transmission of exerting all one's strength keeps, thereby the kinematic accuracy raising, and king-pin 2511 wearing and tearing are few.

When the pumping unit of said structure uses, driving frame by motor 21 fluid coupling reducing gears changes 25 revolutions, and by a ring on the revolution chain---and specific links drives fork 27 swings, makes support 26 upper and lower to-and-fro motion, when round frame is walked downwards, weight is downward, and meanwhile clamp holder makes progress away, and finishes oil pumping work, otherwise, weight makes progress, and clamp holder is downward, oil pumping is provided with gos deep into oil well.In whole oil pumping working procedure, weight plays energy storage, put the effect with balance, and it to be to have replaced multiple assorted device such as compensating cylinder, air reservoir, pressure fan than easy structure, makes it gas leakage and the problem of fluctuation of service is solved.

Advantages such as the pumping unit that this shows the foregoing description has effect height, less energy consumption, intensity is good, bearing capacity is big, operation balance, compact structure, the little life-span of wearing and tearing is long, use is easy to maintenance.

Claims

1, a kind of energy-saving counterweight balance chain type pumping unit includes body, power-transmitting unit, reversing arrangement, Equilibrator, suspension arrangement and forms, and wherein power-transmitting unit includes motor, retarder, drive sprocket, driven sprocket, circumversion chain, it is characterized in that circumversion chain, the balance chain in the Equilibrator in the power-transmitting unit all adopt the high circle chain of mine of intensity; Reversing arrangement is that a swing link type comes and goes device, and it is by support body, fork and place the specific links on the revolution chain to be formed, and wherein fork one end is arranged on the support body center line, and its other end links to each other with specific links and the curve bath on the support body and swinging; Described Equilibrator by the balance chain that links to each other with round frame below, be located at the balance sprocket wheel of frame below and be arranged on the frame upper cross-beam the commutation sprocket wheel and and walk around the weight that the balance chain the other end of above-mentioned two sprocket wheels is connected and formed; Described suspension arrangement is by the steel wire that links to each other with round frame top, reach the clamp holder that links to each other with the steel wire the other end and formed with being located at two sheaves on the frame beam around steel wire.

2, by the described energy-saving counterweight balance chain type pumping unit of claim 1, the power section that it is characterized in that power-transmitting unit is that the permanent torque motor of double speed and adding with fluid coupling cooperates.

3,, it is characterized in that in the reversing arrangement between fork and support body, articulating point is bearing and is connected between fork and specific links by the described energy-saving counterweight balance chain type pumping unit of claim 1.

4, by the described energy-saving counterweight balance chain type pumping unit of claim 1, it is characterized in that specific links is an integrated chain pin, the annulus that it is reached by the active bearing pin that is connected with support body and initiatively bearing pin is become one is formed.

5,, it is characterized in that body by being formed, and fuselage is that both sides, front and back are the open type framework by support and fuselage and crossbeam by the described energy-saving counterweight balance chain type pumping unit of claim 1.