CN2158001Y - Oscillating pump - Google Patents

Abstract

A swing pump belongs to a displacement pump. The circular cavity is divided into four cavities by the conical swinging disk and the fixed partition plate of the pump, and when the conical swinging disk swings in the circular cavity, two cavities increase in volume to form a suction cavity, and the other two cavities decrease in volume to form a discharge cavity. The drive of the conical wobble plate is mainly an eccentric device supported by spherical bearings, and the driving shaft is still a rotating shaft driven by a prime mover. The pump adopts a new transmission mechanism and an oil pumping device, so the pump has the advantages of simple structure, reliable work, stable working pressure and flow, less energy consumption, no vibration at the working pressure of 2.5MPa, low noise and long service life, and is particularly suitable for transporting viscous fluid such as crude oil and asphalt.

Description

Swinging pump

A kind of wobble pump that is specially adapted to aspirate viscous fluid, it belongs to displacement pump.

In the prior art, No. 87101507 patents of China's approval are a kind of positive displacement plug pumps, and this pump mainly is made up of component such as housing, end cap, conical ring plate, sealed baffle and rotating shafts.When rotating shaft drove the conical ring plate rotation, two ring-type wedge cavities also were rotated, and relatively-stationary sealing washer is divided into two quilts with the ring-type wedge cavities of two rotations and cuts the ring-type wedge cavities, forms respectively and inhales chamber and row chamber.This plug pump has simple in structure, is suitable for aspirating the advantage of toughening oil, but because conical ring plate rotates, and sealed baffle must be followed conical ring plate and be made axial slip, causes between the two surface of contact and wear and tear acutely, is difficult to keep for a long time good working order.

The purpose of this utility model is: design a kind of wobble pump, adopt stationary barrier, utilize the swing of circular cone balance to form suction chamber and row chamber, make little slippage only takes place between circular cone balance and the stationary barrier, be beneficial to reduce abrasion.This wobble pump should be simple in structure, efficient is high, power consumption is low, self-suction is strong, and reliable operation and life-span are long, and be easy to utilize.

Technical solution of the present utility model is: a kind of wobble pump, and it mainly comprises a pump housing, an end holds lid, a middle bearing sleeve and the sealing cover that oil sealing is housed that driving shaft and bearing are housed.Special way of the present utility model is: it also comprises a lumen ring that the spheroid inner bearing face is waved in spheroid and conduct that waves that has the circular cone balance, the inboard of holding lid at end is provided with the outer bearing surface that waves spheroid, hold the annular chamber that constitutes the swing of circular cone balance between lid and the lumen ring at end, be provided with a stationary barrier above annular chamber, the overhanging cylinder that waves spheroid is connected by bearing and driving shaft are eccentric.When driving shaft rotates, wave spheroid only around centre of sphere swing, the circular cone balance is inhaled chamber and row chamber because stationary barrier is separated into annular chamber in swing process, and the continuous swing of circular cone pendulum will be finished suction work.

The bearing that waves the overhanging cylinder of spheroid adopts entad spherical bearing of biserial, and off-centre is installed on the driving shaft end, and the angle α of two axial lines is 5～9 degree.

The inner peripheral surface of annular chamber adopts sphere, and the outer peripheral surface of circular cone balance also adopts sphere.

The top of circular cone balance has the elongated slot that allows stationary barrier insert, and the arc structure of being convenient to the swing of circular cone balance is adopted in the both sides of elongated slot.

The circular cone balance is to be loaded on after the separately processing to wave on the spheroid, or with wave spheroid and be made of one.

Be provided with heating chamber in the pump housing.

Adopt the guiding theory of technique scheme to be: the circular cone balance in annular chamber is separated into two equal parts to annular chamber, the stationary barrier of traverse is cut apart chamber again above annular chamber, form four active chambers, both sides at stationary barrier are left the wedge shape gateway respectively, i.e. row's mouth and suction inlet.Under the driving of driving shaft, with waving spheroid around centre of sphere swing, four active chambers change from small to big respectively the circular cone balance or from large to small, its volume constantly changes in annular chamber.Two active chambers from large to small constitute the row chambeies, discharge after fluid is improved pressure; Two active chambers that change from small to big constitute inhales the chamber, and fluid is sucked under the certain vacuum degree.It is in order to swing reliable operation freely that the circumferential abutment place of annular chamber and circular cone balance adopts concentric spherical.The elongated slot both sides of opening on the circular cone balance adopt arc structure be for and stationary barrier between little slippage only takes place, alleviated wearing and tearing.

Effect of the present utility model is: this wobble pump is because the circular cone balance is finished suction work in swing, oscillation center is the centre of sphere of spherical bearing, and characteristics such as little slippage only take place between stationary barrier and the circular cone balance, and this pump structure is simple, reliable operation, in use, working pressure and stability of flow, power consumption is few, when the 2.5MPa working pressure, pump housing friction, noise is little, is particularly suitable for transporting viscous fluid.

Description of drawings:

Accompanying drawing 1 is a kind of longitudinal section of wobble pump.

Accompanying drawing 2 is cross-sectional figure of wobble pump of reflection stationary barrier.

Accompanying drawing 3 is circular cone balances of belt length groove.

Accompanying drawing 4 is situations that stationary barrier is positioned at circular cone balance elongated slot.

Be an embodiment of the present utility model below, provide details of the present utility model by description and accompanying drawing to this embodiment.

Fig. 1 is a kind of sectional arrangement drawing of wobble pump.It shows the main structure of wobble pump, as seen from the figure, middle bearing sleeve ［ 3 ］ is screwed the right-hand member in the pump housing ［ 1 ］, single-row centripetal bearing ［ 5 ］ ［ 6 ］ in the middle bearing sleeve ［ 3 ］ is supporting driving shaft ［ 4 ］, the overhanging end of driving shaft ［ 4 ］ is equipped with the skeleton rubber oil sealing, and sealing cover ［ 7 ］ is screwed on middle bearing sleeve ［ 3 ］.A biserial is equipped with entad on the spherical bearing ［ 10 ］ in the inner of driving shaft ［ 4 ］, lumen ring ［ 12 ］ in the pump housing ［ 1 ］ left end and end hold and form an annular chamber ［ 23 ］ between the lid ［ 2 ］, stationary barrier ［ 21 ］ is equipped with in the top of annular chamber ［ 23 ］, be installed in the circular cone balance ［ 11 ］ that waves on the spheroid ［ 8 ］ annular chamber ［ 23 ］ is divided into two chambeies, stationary barrier ［ 21 ］ is separated into four chambeies to these two chambeies again, the supporting surface ［ 13 ］ ［ 14 ］ ［ 15 ］ ［ 16 ］ that waves spheroid ［ 8 ］ is a sphere, supporting surface ［ 13 ］ ［ 14 ］ is positioned on the lumen ring ［ 12 ］, and supporting surface ［ 15 ］ ［ 16 ］ is positioned at end and holds on the lid ［ 2 ］.Because waving the axis angle of axis and driving shaft ［ 4 ］ of the overhanging cylinder ［ 9 ］ of spheroid ［ 8 ］ and be 7 spends, when driving shaft ［ 4 ］ rotates, waving spheroid ［ 8 ］ with regard to driving swings around the centre of sphere, simultaneously, circular cone balance ［ 11 ］ is swung in annular chamber ［ 23 ］, above-mentioned four chambeies that in annular chamber ［ 23 ］, are separated out by stationary barrier ［ 21 ］ and circular cone balance ［ 11 ］, there are two chamber volumes to increase, form and inhale the chamber, two chamber volumes reduce in addition, the row of formation chamber, so, go round and begin again, just can finish the continuous suction work of pump.In order to improve the working efficiency of pump, reduce and leak, the inner peripheral surface ［ 17 ］ of annular chamber ［ 23 ］ and the outer peripheral surface ［ 18 ］ of circular cone balance ［ 11 ］ they are the spheres of working in coordination; The cone angle beta of circular cone balance ［ 11 ］ side=7 degree.

Fig. 2,3,4 mainly wants to illustrate the correlation of stationary barrier ［ 21 ］ and circular cone balance ［ 11 ］.The top that stationary barrier ［ 21 ］ is positioned at annular chamber ［ 23 ］ has been shown among Fig. 2.Fig. 3 is the circular cone balance ［ 11 ］ that has elongated slot ［ 20 ］.Fig. 4 is that stationary barrier ［ 21 ］ is contained in the situation in circular cone balance ［ 11 ］ elongated slot ［ 20 ］, in order to allow circular cone balance ［ 11 ］ swing freely, all adopt the both sides of elongated slot ［ 20 ］, arc structure ［ 19 ］, can guarantee that so also circular cone balance ［ 11 ］ is in swing process, and little slippage only takes place between ［ 2 ］ in stationary barrier, has reduced wearing and tearing, has increased sealing.

The ring-shaped heating cavity of seeing among Fig. 1,2 ［ 22 ］ can pass to steam or hot water heats pump chamber according to condition, can guarantee pump proper functioning under any weather conditions like this, even also can work well to crude oil, the such viscous fluid of pitch.

Claims (6)

1, a kind of wobble pump, it mainly comprises a pump housing [1], an end holds lid [2], one is equipped with the middle bearing sleeve [3] of driving shaft [4] and bearing [5] [6] and the sealing cover [7] that is equipped with oil sealing, of the present utility model being characterised in that, it also comprises a lumen ring [12] that spheroid [8] inner bearing face [13] [14] is waved in spheroid [8] and conduct that waves that has circular cone balance [11], the inboard of holding lid [2] at end is provided with the outer bearing surface [15] [16] that waves spheroid [8], hold the annular chamber [23] that constitutes circular cone balance [11] swing between lid [2] and the lumen ring [12] at end, be provided with a stationary barrier [21] in the top of annular chamber [23], the overhanging cylinder [9] that waves spheroid [8] is connected by bearing [10] and driving shaft [4] are eccentric, when driving shaft [4] rotates, waving spheroid [8] only swings around the centre of sphere, circular cone balance [11] is inhaled chamber and row chamber because stationary barrier [21] is separated into annular chamber [23] in swing process, the continuous swing of circular cone balance [11] will be finished suction work.

According to the described wobble pump of claim 1, it is characterized in that 2, the bearing ［ 10 ］ that waves the overhanging cylinder ［ 9 ］ of spheroid ［ 8 ］ adopts entad spherical bearing of biserial, and off-centre is installed on driving shaft ［ 4 ］ end, the angle α of two axial lines is 5～9 degree.

According to claim 1 or 2 s' wobble pump, it is characterized in that 3, the inner peripheral surface ［ 17 ］ of annular chamber ［ 23 ］ adopts sphere, the outer peripheral surface ［ 18 ］ of circular cone balance ［ 11 ］ also adopts sphere.

According to the described wobble pump of claim 3, it is characterized in that 4, the top of circular cone balance ［ 11 ］ has the elongated slot ［ 20 ］ that allows stationary barrier ［ 21 ］ insert, the arc structure ［ 19 ］ of being convenient to circular cone balance ［ 11 ］ swing is adopted in the both sides of elongated slot ［ 20 ］.

According to the described wobble pump of claim 4, it is characterized in that 5, circular cone balance ［ 11 ］ is to be loaded on after the separately processing to wave on the spheroid ［ 8 ］, or with wave spheroid ［ 8 ］ and be made of one.

6, according to the described wobble pump of claim 1, it is characterized in that, be provided with heating chamber ［ 22 ］ in the pump housing ［ 1 ］.

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