CN208106740U - A kind of single-screw (single screw) pump of stator tandem - Google Patents

Abstract

The utility model discloses a kind of single-screw (single screw) pumps of stator tandem, including bearing block, oil inlet head is fixedly installed in the right end of the bearing block, the oil inlet of oil inlet head upper end is connected to inflow pipeline, two stators are arranged in the oil inlet head right end, and intermediate is installed additional between two stators, oil head is fixedly installed out in the stator end end, the fuel-displaced cephalic par is connected to flowline, the oil inlet head, stator, the joint face of intermediate and out oil head is respectively provided with boss, and mounting hole is arranged in boss surface, the oil inlet head and out oil head and stator by the mounting hole of boss assembly connection be bolted, the single-screw (single screw) pump of this stator tandem is connected multiple stators by intermediate, guaranteeing the length of original single-screw (single screw) pump simultaneously, shorten single stator length, reduce difficulty of processing and use cost.

Description

A kind of single-screw (single screw) pump of stator tandem

Technical field

The utility model relates to single screw pump field, specially a kind of single-screw (single screw) pump of stator tandem.

Background technique

Currently, the stator structure base that single-screw (single screw) pump uses in its triplex, four-stage pump or higher pressure grade in the market This be monoblock type, i.e., stator be one whole rubber parts and steel part combination.The stator length used due to these single-screw (single screw) pumps is very Length, or even 6,7 meters of length can be reached, this has resulted in stator during production, and the liner rubber in stator is not allowed It is easily molded, it is easy to generate some defects, such as stomata, misrun inside molded rubber, affects the longevity of stator Life and service performance.In the sub-process for making these high pressure single-screw (single screw) pumps, it is also necessary to which the precision of the support of mold, mold is straight The production precision for influencing stator is connect, and makes these mold bodies and there is very high difficulty, to equipment requirement, processing water It is flat to be proposed very high requirement.Simultaneously in actual management, storage, the management of these long stators are all asked there is some Topic increases inventory to increase managerial cost, and there is also many difficulties on the maintenance maintenance of long stator, fixed Son is the vulnerable part in single-screw (single screw) pump, once long stator damages, and it is time-consuming and laborious expensive just by integral replacing.

Summary of the invention

The technical problems to be solved in the utility model is to overcome existing defect, provides a kind of single screw rod of stator tandem Pump, is connected multiple stators by intermediate, the length for guaranteeing original single-screw (single screw) pump simultaneously, shorten single stator length, drop Low difficulty of processing and use cost can effectively solve the problems in background technique.

To achieve the above object, the utility model provides the following technical solutions：A kind of single-screw (single screw) pump of stator tandem, packet Bearing block is included, oil inlet head is fixedly installed in the right end of the bearing block, and the oil inlet of oil inlet head upper end is connected to inflow pipeline, Two stators are arranged in the oil inlet head right end, and install intermediate between two stators additional, the stator end end fixed setting Oil head out, the fuel-displaced cephalic par are connected to flowline, the oil inlet head, stator, intermediate and the joint face of oil head is all provided with out Boss is set, and mounting hole is arranged in boss surface, the oil inlet head and out oil head are with stator by filling in the mounting hole of boss It is bolted with connection, and adjacent stators are connected by assembling stud in the mounting hole of boss, the axis position of intermediate Sleeve is installed, the sleeve is connected by the inner wall of internal stent and intermediate, and jackshaft is arranged in the sleeve inner, described Jackshaft both ends pass through universal joint respectively and connect with rotor, and are connected close to the rotor of bearing block one end by universal joint and connecting shaft It connects, by universal joint and transmission axis connection, the transmission shaft and bearing block are coupled the connecting shaft by bearing pair.

As a kind of optimal technical scheme of the utility model, sphere is fixedly installed in the jackshaft middle position, described Intermediate inner sleeve inner wall is spherical shell structure, and the spherical shell structure of the sphere and sleeve lining is coupled.

As a kind of optimal technical scheme of the utility model, the boss side surfaces setting annular of the intermediate two sides is recessed Annular protrusion, the groove and stator terminal of the intermediate end is arranged in the boss mounting surface surface of slot, the stator and intermediate The male cooperation in portion is installed, and the inner wall position of the junction of intermediate and stator end is respectively provided with slope.

As a kind of optimal technical scheme of the utility model, support base, the branch are fixedly installed outside the intermediate The surface for supportting seat is symmetrical arranged stepped hole.

As a kind of optimal technical scheme of the utility model, helical blade is fixedly installed outside the connecting shaft, and even Mechanical seal is installed additional between the transmission shaft and bearing block of spindle end.

Compared with prior art, the utility model has the beneficial effects that：The single-screw (single screw) pump of this stator tandem is using intermediate Body connects multiple stators, and the length for guaranteeing original single-screw (single screw) pump simultaneously, shortens the length of single stator, reduces difficult processing Degree and use cost, while rotor is split as multiple individuals, and by intermediate axis connection, while reducing the difficult processing of rotor Degree, also avoid rotor length it is longer caused by flexible deformation, and jackshaft is coupled with intermediate, guarantees moving when rotation Balance reduces vibration when work.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model intermediate schematic diagram；

Fig. 3 is the utility model connector assembling schematic diagram；

Fig. 4 is the utility model oil inlet head schematic internal view；

Fig. 5 is enlarged drawing at the utility model A.

In figure：1 stator, 2 intermediates, 3 studs, 4 go out oil head, 5 connection bolts, 6 oil inlet heads, 7 bearing blocks, 8 transmissions Axis, 9 jackshafts, 10 spheres, 11 support bases, 12 stepped holes, 13 universal joints, 14 rotors, 15 mechanical seals, 16 connecting shafts.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-5 is please referred to, the utility model provides a kind of technical solution：A kind of single-screw (single screw) pump of stator tandem, including Oil inlet head 6 is fixedly installed in the right end of bearing block 7, bearing block 7, and the oil inlet of 6 upper end of oil inlet head is connected to inflow pipeline, oil inlet head Two stators 1 are arranged in 6 right ends, and install intermediate 2 between two stators 1 additional, and oil head 4 is fixedly installed out in 1 extreme ends of stator, out 4 end of oil head is connected to flowline, oil inlet head 6, stator 1, intermediate 2 and the joint face of oil head 4 is respectively provided with boss, and boss out Surface is arranged mounting hole, oil inlet head 6 and out oil head 4 and stator 1 by the mounting hole of boss assembly connection bolt 5 connect It connects, and adjacent stators 1 are connected by assembling stud 3 in the mounting hole of boss, set is arranged in the axial location of intermediate 2 Cylinder, sleeve are connect by internal stent with the inner wall of intermediate 2, and jackshaft 9 is arranged in sleeve inner, and 9 both ends of jackshaft lead to respectively It crosses universal joint 13 to connect with rotor 14, and is connect by universal joint 13 with connecting shaft 16 close to the rotor 14 of 7 one end of bearing block, even Spindle 16 is connect by universal joint 13 with transmission shaft 8, and transmission shaft 8 is coupled with bearing block 7 by bearing pair, in jackshaft 9 Between position be fixedly installed sphere 10,2 inner sleeve inner wall of intermediate be spherical shell structure, the spherical shell structure of sphere 10 and sleeve lining Be coupled, make jackshaft 9 complete itself rotation while, can be rotated around the centre of sphere of sphere 10,2 two sides of intermediate it is convex Platform side is arranged annular groove, and the boss mounting surface surface of stator 1 and intermediate 2 is arranged annular protrusion, 2 end of intermediate it is recessed Slot and the male cooperation of 1 end of stator are installed, and are increased the leakproofness of junction, are avoided oil leak, and 1 end of intermediate 2 and stator The inner wall position of junction be respectively provided with slope, the pressure at connection gap is spread to two sides, the pressure at gap is reduced, subtracts To lack infiltration of the oil plant to gap, support base 11 is fixedly installed outside intermediate 2, the surface of support base 11 is symmetrical arranged stepped hole, Convenient for the fixed installation of intermediate 2, helical blade is fixedly installed outside connecting shaft 16, convenient for the oil liquid for having just enter into oil inlet head 6 It is initially oriented to, and installs mechanical seal 15 between the transmission shaft 8 and bearing block 7 of 16 end of connecting shaft additional, avoid oil liquid from axis Hold 7 internal leakage of seat.

When in use：Intermediate 2 is placed between two stators 1, the boss of the groove of intermediate 2 and stator 1 is matched After closing installation, adjacent stator is fixed by stud 3, then, at work, oil liquid enters inside oil inlet head 6, transmission Power is transmitted to rotor 14 by connecting shaft 16 by axis 8, drives connecting shaft 16 and rotor 14 to rotate, the spiral outside connecting shaft 16 Blade is initially oriented to the oil liquid of entrance, and the inner wall of rotor 14 and stator 1 acts synergistically, and oil liquid is driven to move to oil head 4 out It is dynamic.

The utility model is connected multiple stators 1 using intermediate 2, guarantees the length of original single-screw (single screw) pump simultaneously, Shorten the length of single stator 1, reduces difficulty of processing and use cost, while rotor 14 is split as multiple individuals, and pass through Jackshaft 9 connects, while reducing the difficulty of processing of rotor 14, also avoid 14 length of rotor it is longer caused by flexible deformation, and Jackshaft 9 is coupled with intermediate 2, guarantees dynamic balancing when rotation, reduces vibration when work.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of single-screw (single screw) pump of stator tandem, including bearing block（7）, it is characterised in that：The bearing block（7）Right end it is solid Oil inlet head is set surely（6）, the oil inlet head（6）The oil inlet of upper end is connected to inflow pipeline, the oil inlet head（6）Right end setting Two stators（1）, and two stators（1）Between install intermediate additional（2）, the stator（1）Oil head is fixedly installed out in extreme ends （4）, the oil head out（4）End is connected to flowline, the oil inlet head（6）, stator（1）, intermediate（2）Oil head out（4） Joint face be respectively provided with boss, and mounting hole, the oil inlet head is arranged in boss surface（6）Oil head out（4）With stator（1）It is logical Cross the assembly connection bolt in the mounting hole of boss（5）Connection, and adjacent stators（1）It is double by being assembled in the mounting hole of boss Hook bolt（3）Connection, intermediate（2）Axial location be arranged sleeve, the sleeve pass through internal stent and intermediate（2）It is interior Jackshaft is arranged in wall connection, the sleeve inner（9）, the jackshaft（9）Both ends pass through universal joint respectively（13）With rotor （14）Connection, and close to bearing block（7）The rotor of one end（14）Pass through universal joint（13）With connecting shaft（16）Connection, the connection Axis（16）Pass through universal joint（13）With transmission shaft（8）Connection, the transmission shaft（8）With bearing block（7）Cooperated by bearing pair and is pacified Dress.

2. a kind of single-screw (single screw) pump of stator tandem according to claim 1, it is characterised in that：The jackshaft（9）In Between position be fixedly installed sphere（10）, the intermediate（2）Inner sleeve inner wall is spherical shell structure, the sphere（10）With sleeve The spherical shell structure of inner wall is coupled.

3. a kind of single-screw (single screw) pump of stator tandem according to claim 1, it is characterised in that：The intermediate（2）Two Annular groove, the stator is arranged in the boss side surfaces of side（1）With intermediate（2）Boss mounting surface surface be arranged annular protrusion, The intermediate（2）The groove and stator of end（1）The male cooperation of end is installed, and intermediate（2）And stator（1）End The inner wall position of junction is respectively provided with slope.

4. a kind of single-screw (single screw) pump of stator tandem according to claim 1, it is characterised in that：The intermediate（2）Outside Support base is fixedly installed in portion（11）, the support base（11）Surface be symmetrical arranged stepped hole.

5. a kind of single-screw (single screw) pump of stator tandem according to claim 1, it is characterised in that：The connecting shaft（16）Outside Helical blade, and connecting shaft is fixedly installed in portion（16）The transmission shaft of end（8）With bearing block（7）Between install mechanical seal additional （15）.