CN202012313U

CN202012313U - Drilling fluid stirrer

Info

Publication number: CN202012313U
Application number: CN201120128156XU
Authority: CN
Inventors: 闫国珍; 吕钢; 徐忠; 安为民
Original assignee: CANGZHOU HUACANG OIL MACHINE FACTORY
Current assignee: CANGZHOU HUACANG OIL MACHINE FACTORY
Priority date: 2011-04-27
Filing date: 2011-04-27
Publication date: 2011-10-19
Anticipated expiration: 2021-04-27

Abstract

The utility model relates to a drilling fluid stirrer, in particular to a drilling fluid stirrer easy to maintain, which comprises a motor, a reducer and a stirring device connected onto an output end of the reducer. The motor is connected with the reducer through a flexible coupler. Preferentially, the flexible coupler is a tire coupler; and more preferentially, the reducer is a worm gear reducer. The flexible coupler serves as a power transmission device between the motor and the reducer, thereby effectively reducing requirement for coaxiality of the coupler, and greatly reducing difficulties in installation and maintenance of the drilling fluid stirrer. By use of the tire coupler, requirement for coaxiality is reduced, and when common breakdowns such as tire erosion or damage and the like happen in the tire coupler, maintenance is very convenient.

Description

Agitator

Technical field

The utility model relates to a kind of agitator, especially a kind of agitator that is easy to safeguard.

Background technology

Agitator is the part in the petroleum drilling fluid solid control system, its effect is mixing mud or drilling fluid, so that waltz through cleaning system and separate, its major function was that drilling cuttings etc. is blended in the mud uniformly at the bottom of solid phase material, drilling cuttings, silt particle in the liquid was not deposited in slurry tank jar.

Common agitator adopts motor to drive, and transmits power on the mixing plant by hitch bar, deceleration device, realizes the stirring to drilling fluid.The general yielding coupling that adopts quincunx or pin-type load adopts worm type of reduction gearing as deceleration device as hitch bar.

The yielding coupling of quincunx or pin-type load all is that the axiality of connecting axle is required than higher equipment, and elasticity contiguous block wherein not only is worn easily and also is unfavorable for changing very much.On the work-yard of drilling fluid solid control equipment, often can not guarantee the smooth of ground, and operating load causes the connecting axle at yielding coupling two ends all can't keep good axiality in the installation and operation process also than higher; Can cause the elasticity contiguous block stressing conditions in the shaft coupling abominable so again, be easy to wearing and tearing more; Need remove the motor of shaft coupling one end or the reducer of the other end when changing impaired elasticity contiguous block, not only troublesome poeration also can cause the decline that the back axiality is installed because of the error of operation.

The utility model content

Technical problem to be solved in the utility model provides a kind of agitator that is easy to safeguard.

For solving the problems of the technologies described above, agitator of the present utility model adopts following technical scheme:

A kind of agitator comprises motor, reducer and is connected the mixing plant of described reducer output, and connects by flexible clutch between described motor and the described reducer.

Preferably, described flexible clutch is a tyre coupling.

More preferably, described reducer is a worm type of reduction gearing.

Especially preferably, described worm type of reduction gearing is the twice-enveloping worm type of reduction gearing.

Twice-enveloping is the abbreviation to the plane-generated double enveloping anchor ring.The planar double-enveloping worm transmission is not to use the single face milling cutter during machining worm wheel just, but the gear teeth that the hobboing cutter envelope of doing with the worm screw type that planar envelope is come out goes out worm gear are realized envelope again to worm gear, so be called twice-enveloping.The planar double-enveloping wormwheel pair that processes in this way has following feature: 1, worm screw is an enveloping worm, and area of contact is big simultaneously with worm gear.2, worm tooth-surface accurately grinds after cure process and forms, and its tooth face hardness height (HRC 〉=55), roughness is low, profile accuracy is high.3, the mechanical efficiency of common worm-gears is generally 50% to 60%, and the machinery driving efficiency of planar double-enveloping worm is about 90%.The twice-enveloping worm couple than the common worm couple saves energy of equal specification more than 30%, bearing capacity improve more than 4 times, the life-span improves more than 5 times.

Than prior art, advantage of the present utility model is:

1. adopt flexible clutch as the power transmission between motor and the reducer, can effectively reduce the requirement of shaft coupling, make installation difficulty of this agitator and maintenance difficulties reduce greatly axiality.

2. used tyre coupling, not only to axiality require low, and most common failure such as wearing and tearing or breakage when taking place in the carcass in tyre coupling, keep in repair very convenient, only need change carcass simply gets final product, the motor of shaft coupling one end or the reducer of the other end need not be removed, thereby greatly reduce the difficulty of maintenance, improved maintenance speed, also avoided because the axiality decline problem that the maintenance shaft coupling causes, carcass also has certain damping capaicty, helps the equipment even running.

3. the twice-enveloping worm type of reduction gearing is with respect to traditional worm and gear of same size, total number of teeth in engagement during its worm and gear engagement is more, contact ratio is bigger, contact area is bigger, engaging piece is stressed more even, thereby the supporting capacity and the transmission efficiency of worm type of reduction gearing have effectively been improved, wearing and tearing have been reduced, running steadily, noise is low, has the longer life-span.If select the reducer of same supporting capacity for use, then the appearance and size of twice-enveloping worm type of reduction gearing is compacter more than traditional turbine and worm reducer.

Description of drawings

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is further described in detail.

Fig. 1 is the front view of embodiment one;

Fig. 2 is the structural representation of tyre coupling among Fig. 1;

Fig. 3 is the twice-enveloping worm screw schematic diagram among the embodiment one.

Among the figure: 1. motor, 2. tyre coupling, 3. twice-enveloping worm type of reduction gearing, 4. mixing plant, 21. carcasses, 22 pressing plates, 23. set bolts, 24. axle sleeves, 25..

The specific embodiment

Below in conjunction with Figure of description the utility model is further described.

Agitator described in the utility model comprises motor, reducer and is connected the mixing plant of described reducer output, connects by flexible clutch between described motor and the described reducer.

Embodiment one

Flexible clutch described in the present embodiment is preferably tyre coupling.As shown in Figure 1, a kind of agitator, comprise motor 1, the output of motor 1 connects a tyre coupling 2, the other end of this tyre coupling 2 is connected with the input of twice-enveloping worm type of reduction gearing 3, and the output of this twice-enveloping worm type of reduction gearing 3 is connected with mixing plant 4.During work, motor 1 drives tyre coupling 2 and rotates, and power is input in the reducer 3, by after the twice-enveloping worm and gear deceleration wherein the side of moving being outputed on the mixing plant 4, realizes the rotation of mixing plant 4.Motor positive and inverse no matter, the agitator in the present embodiment all can operate as normal.

Tyre coupling 2 is a kind of flexible clutch, has the axiality requirement low characteristics of flexible clutch to the two ends connecting axle.Use the power-transmitting part of carcass as shaft coupling therein, characteristics are that the replacing of carcass is very simple and easy.As shown in Figure 2, when changing the carcass 21 of shaft coupling, unclamp set bolt 23 earlier, pressing plate 22 is unclamped from restraint location, take off impaired carcass 21 then, change new carcass 21, make pressing plate 22 be pressed on restraint location by tightening set bolt 23 again, carcass 21 is fixed on the axle sleeve 24, thereby finishes replacing.Whole process does not need to move with spools 25 the axle sleeve 24 that (these 25 be the power output shaft of motor or the worm shaft of worm type of reduction gearing) is connected, thereby has just avoided travel motor or reducer yet.

As can be seen from Figure 3, the twice-enveloping worm screw is with respect to traditional worm type of reduction gearing, and its general structure and transmission principle all do not change, and difference is the twice-enveloping anchor ring of its field of conjugate action for processing specially.The reducer 3 of application twice-enveloping worm and gear structure and traditional turbine and worm reducer all less than changing, are therefore used twice-enveloping worm type of reduction gearing 3 and can not caused the operational trouble of any installation and maintenance on profile and power transmission mode in existing agitator.

In the mud solid phase treatment facility, the sand content of drilling fluid and flow are all very big, so require very high to the service load of agitator; The drilling well place is remote in the open air place how, and not only site condition is poor, and maintenance of equipment is also very difficult.Therefore, for agitator, both wished its lifting capacity height, fault rate is low, the life-span is long, and wished that also it is easy for installation, repair safeguard simple to operate.The agitator that present embodiment provided greatly reduces the installation requirement of equipment axiality owing to adopted tyre coupling, has strengthened maintainability; Adopted the twice-enveloping worm type of reduction gearing, improved lifting capacity greatly, and the stressed distribution of twice-enveloping worm and gear engaging piece wherein is more even, can effectively reduce wearing and tearing, has lowered fault rate, has improved the application life of equipment.

More than; it only is preferred embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claim was defined.

Claims

1. agitator comprises motor, reducer and is connected the mixing plant of described reducer output, it is characterized in that: connect by flexible clutch between described motor and the described reducer.

2. agitator as claimed in claim 1 is characterized in that: described flexible clutch is a tyre coupling.

3. agitator as claimed in claim 1 or 2 is characterized in that: described reducer is a worm type of reduction gearing.

4. agitator as claimed in claim 3 is characterized in that: described worm type of reduction gearing is the twice-enveloping worm type of reduction gearing.