CN208169151U - Floating type impeller immersible pump - Google Patents

Abstract

The utility model discloses a kind of floating type impeller immersible pump, the pump housing includes impeller sets, pump shaft and guide vane group, and impeller sets include being placed on the floating type impeller of multiple single-stages that pump shaft is outer and axially sets gradually along pump shaft；Guide vane group includes being placed on outside pump shaft and disposing a floating type impeller of single-stage between multiple guide vanes that pump shaft is axially set gradually, adjacent guide vane；Wherein, clearance fit between the floating type impeller of single-stage and pump shaft, its gap between adjacent guide vane is automatically adjusted so as to the size according to medium；Wherein, the bottom of the floating type impeller of single-stage is provided with the rubber pad for reducing the active force between the floating type impeller of single-stage and guide vane adjacent thereto.The immersible pump of the utility model, adjacent fan-wheel is independent of each other and can move freely, change gap with the size of medium, reduce friction, cost of labor is saved, and the balance of motor external and internal pressure can be kept, guarantees that the sealing of motor has good result, the service life for improving immersible pump, greatlys save use cost.

Description

Floating type impeller immersible pump

Technical field

The utility model relates to pump technical field more particularly to a kind of floating type impeller immersible pumps of diving under water.

Background technique

There is immersible pump in the prior art motor and the pump housing with impeller sets, motor to be placed in machine barrel, pump housing peace It sets in pump barrel, tie-plate is connect with pump barrel, is connected tie-plate with machine barrel by multiple attachment bases, and will be electric by shaft coupling The armature spindle of machine is connected with the pump shaft of the pump housing, so that the impeller sets of the pump housing can be driven to rotate, made low in electrical power rotation Press liquid becomes highly pressurised liquid after the acceleration of impeller sets, is finally discharged from the water outlet of the pump housing.

Immersible pump in the prior art is all manually to adjust gap, but impeller clearance is difficult to adjust using fixed impeller； In addition, immersible pump in the prior art, is connected between tie-plate and machine barrel by multiple attachment bases, sealing performance is reduced, When immersible pump underwater penetration is too low, since immersible pump external pressure is excessive, be easy to cause motor side (referred to as motor side) with The liquid of pump housing side (referred to as pump housing side) mutually leaks, to influence motor service life, and then influences entire latent Water pump service life, and easily cause unsafe accident.

Summary of the invention

The purpose of this utility model is exactly to solve the above-mentioned problems, to provide a kind of floating type impeller immersible pump, adjacent Impeller is independent of each other and can move freely, and changes gap with the size of medium, can reduce friction, saves cost of labor, and can The balance for keeping motor external and internal pressure guarantees that the sealing of motor has good result, improves the service life of immersible pump, save significantly About use cost.

For the above-mentioned purpose for realizing the utility model, a kind of floating type impeller immersible pump of the utility model, including have The motor of machine barrel, the pump housing with pump barrel, the tie-plate connecting with pump barrel, the pump housing include pump barrel, impeller sets, pump shaft and guide vane Group, wherein the impeller sets of the pump housing include being placed on outside the pump shaft and floating along multiple single-stages that pump shaft is axially set gradually Dynamic formula impeller；The guide vane group include be nested with outside the pump shaft and along multiple guide vanes that pump shaft is axially set gradually, it is adjacent to lead A floating type impeller of single-stage is disposed between leaf；Wherein, clearance fit between the floating type impeller of the single-stage and the pump shaft, with Just its gap between adjacent guide vane is automatically adjusted according to the size of medium；Wherein, the bottom of the floating type impeller of the single-stage Portion is provided with the rubber pad for reducing the active force between the floating type impeller of single-stage and guide vane adjacent thereto.

Preferably, the upper surface of the guide vane is provided with the rubber pad resettlement groove for temporarily disposing the rubber pad.

Preferably, the lower end surface of the guide vane is provided with for temporarily disposing the impeller of the floating type impeller of the single-stage to dispose Slot.

Preferably, the upper surface of the floating type impeller of the single-stage is provided with is used to be plugged on institute along what it was protruded axially outwards State the chuck in impeller resettlement groove.

It further, further include Hermetical connecting structure for the tie-plate and the machine barrel to link together, institute Stating Hermetical connecting structure includes：The base that one end is connect with the tie-plate, its other end is connect with the machine barrel；It is provided with First resettlement groove of described one end of base；It is provided with the second resettlement groove of the other end of base；It is partially disposed at It is used to prevent the fluid seepage of pump housing side into the first seal assembly of motor side in one resettlement groove；It is placed in the second resettlement groove For preventing motor side fluid seepage into the second seal assembly of pump housing side；Wherein, close by the first seal assembly and second Sealing assembly makes the pressure balance of the motor two sides.

Wherein, first seal assembly includes：The stationary ring pedestal being placed in the first resettlement groove of the base, thereon End setting groove；Its underpart is placed in the stationary ring in the groove of stationary ring pedestal；The rotating ring being placed in above stationary ring；Its underpart holding Circlip outside rotating ring.

Wherein, the circlip top is against on the baffle ring being installed on the armature spindle of the motor.

Wherein, the rotating ring top stretches out in the base.

Wherein, the structure of second seal assembly is identical as first seal assembly, and circlip lower part is against installation In on the bearing of the armature spindle of the motor.

Compared with prior art, the floating type impeller immersible pump of the utility model has the following advantages that：

1, the floating type impeller immersible pump of the utility model has the floating type impeller of multiple single-stages, between every grade of impeller mutually not It influences and can move freely, change gap with the size of medium, reduce friction, be not required to manually adjust impeller clearance, save significantly About cost of labor can keep the balance of motor external and internal pressure, guarantee that the sealing of motor has in addition, having sealing connecting component Good result improves the service life of immersible pump, greatlys save use cost.

2, the floating type impeller immersible pump of the utility model, the pump housing is connected to motor by base, at the both ends of base Resettlement groove is respectively set, and disposes seal assembly respectively in resettlement groove, ensures that the pressure balance inside and outside motor, It effectively prevent motor side and the liquid of pump housing side to leak mutually, improves the service life of immersible pump, greatly save use cost.

The utility model is described in detail with reference to the accompanying drawing.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the floating type impeller immersible pump of the utility model；

Fig. 2 is the schematic diagram of positional relationship between floating type impeller and guide vane under conventional sense；

Fig. 3 is the schematic diagram of positional relationship between floating type impeller and guide vane when having particulate matter to pass through；

Fig. 4 is the structural schematic diagram that pump body portion is not shown in the floating type impeller immersible pump of the utility model；

Fig. 5 is the part A enlarged drawing of Fig. 4；

Fig. 6 is the structural schematic diagram of the base of the utility model；

Fig. 7 is the structural schematic diagram of the seal assembly of the utility model.

Specific embodiment

As shown in Figure 1, the structural schematic diagram of the floating type impeller immersible pump for the utility model, as shown in figure 4, being this reality The structural schematic diagram of pump body portion is not shown with novel float-type impeller immersible pump, Fig. 5 is the part A enlarged drawing of Fig. 4, by Fig. 1, Fig. 4, Fig. 5 are it is found that the floating type impeller immersible pump of the utility model includes：Motor 2 with machine barrel 1, with the pump housing of pump barrel 10, the tie-plate 6 being connect with pump barrel；Motor 2 and motor bearing seat press fitting are positioned in machine barrel 1, the overhanging armature spindle of motor 2 5 are supported by rotor bearing 3, shaft coupling 8 are disposed in the end of armature spindle 5, for the pump shaft of armature spindle 5 and the pump housing 10 to be driven (not shown) is connected, in addition, the partial shrouds in the close shaft coupling 8 of armature spindle 5 have the inverted bowl-type for sealing Water proof circle 7.

Wherein, the pump housing includes pump barrel 11 and the impeller sets being placed in pump barrel 11, pump shaft 12 and guide vane group, in order to make impeller It is independent of each other between every grade of impeller of group, and can be along the axially free activity of pump shaft 12, it can be with containing the size of medium in liquid And changing the gap between adjacent fan-wheel, the floating type impeller immersible pump of the utility model uses following scheme：The impeller of the pump housing Group includes being placed on the floating type impeller 14 of multiple single-stages that pump shaft 12 is outer and axially sets gradually along pump shaft 12；Guide vane group includes set It is placed in outside pump shaft 12 and along multiple guide vanes 13 that pump shaft 12 is axially set gradually, there is gap between guide vane 13 and pump shaft, it is adjacent The floating type impeller 14 of a single-stage is disposed between guide vane 13；Wherein, gap between the floating type impeller 14 of each single-stage and pump shaft 12 Cooperation, so that the floating type impeller 14 of single-stage can be moved along 12 axial reciprocating of pump shaft, automatically adjust the adjacent floating type impeller of single-stage it Between gap；Wherein, the bottom of the floating type impeller 14 of single-stage is provided with for reducing the floating type impeller 14 of single-stage and adjacent thereto Guide vane 13 between active force rubber pad 16, rubber pad 16 and 12 clearance fit of pump shaft, using rubber pad can reduce its with Frictional force between pump shaft.

Wherein, the shape of every grade of guide vane in prior art guide vane group can be used in the shape of guide vane, has guide vane chamber, in addition, The upper surface of each guide vane 13 of the utility model is provided centrally with the rubber pad resettlement groove for temporarily disposing rubber pad 16, leads The lower end surface of leaf is provided centrally with the impeller resettlement groove for temporarily disposing the floating type impeller of single-stage.Correspondingly, each single-stage is floating The upper surface of dynamic formula impeller 14 is provided with the chuck for being plugged in impeller resettlement groove protruded axially outwards along it.Manufacture When, the rubber pad of the floating type impeller 14 of single-stage and its underpart, which can be molded, to be integrated, consequently facilitating assembling.

Wherein, rubber pad resettlement groove, impeller resettlement groove, be connected with the pump shaft hole passed through for pump shaft at guide vane center, and Rubber pad resettlement groove, impeller resettlement groove diameter be greater than pump shaft hole diameter, and the outer diameter of the rubber pad of circular ring shape be less than rubber Pad the diameter of resettlement groove, greater than the diameter of impeller resettlement groove, thus when rubber pad is plugged on completely in rubber pad resettlement groove, it can So as to can not be formed between pump shaft and guide vane for chamber between liquid communication, even if the liquid below guide vane can not flow on guide vane Face.

Wherein, pump shaft 12 is connected on the armature spindle of motor (armature spindle is splined shaft) by shaft coupling, then impeller sets, By automatic coupling provided in series on pump shaft 12, last entirety is placed in pump barrel 11 for guide vane group, cover board etc..

When electrical power rotates, drives pump shaft 12 to rotate, the impeller sets being set on pump shaft 12 is made also to run at high speed therewith, With the hydraulic pressure increase intracavitary in guide vane, the bottom low pressure liquid close to motor side accelerates by the floating type impeller 14 of multiple single-stages Afterwards, become highly pressurised liquid, be finally discharged from the water outlet of the pump housing, hydraulic pressure reduces step by step from top to bottom, (such as Fig. 2 under conventional sense It is shown) because the floating type 14 higher level's hydraulic pressure of impeller of single-stage (is located at the single-stage of the single-stage floating type impeller 14 and face disposed thereon The hydraulic pressure of floating type impeller 14 ') it is greater than junior's hydraulic pressure (i.e. positioned at the floating type impeller 14 of the single-stage and the floating type leaf of following single-stage Hydraulic pressure between wheel), it is influenced by hydraulic pressure, the rubber pad of floating type 14 bottom of impeller of single-stage is temporarily inserted into the junior being located below In the rubber pad resettlement groove of guide vane 13, make to be formed between the floating type impeller 14 of pump shaft, guide vane 13, single-stage for liquid flowing Access.At this point, between higher level's guide vane 13 ' and the floating type impeller 14 of junior's single-stage adjacent thereto, there are gap H (such as Fig. 2 institute Show), size H is less than 3mm.

When needing to pass through particulate matter, as shown in figure 3, particulate matter prevents inferior liquid up one in a short time Grade flowing, because motor is in high speed rotation state, at this time the liquid of next stage being followed by the continuous of the floating type impeller of single-stage Ring accelerate, hydraulic pressure is increasing, until next stage hydraulic pressure be greater than upper level hydraulic pressure, at this time influenced by hydraulic pressure, single-stage Floating type impeller 14 up moves (i.e. mobile towards the floating type 14 ' direction of impeller of single-stage being positioned above), makes it and is located at Gap between higher level's guide vane 13 ' above it reduces, until H=0；At this point, the floating type impeller 14 of the single-stage of junior is far under Grade guide vane 13, the rubber pad of bottom is deviate from out of junior's guide vane rubber pad resettlement groove, to allow particulate matter along pump Gap between axis and guide vane passes through, flows up.

The floating type impeller of the utility model, it is all independence and free floating that every grade of impeller is intracavitary in guide vane, can be with The automatic adjustment that gap between adjacent fan-wheel is realized with the size of medium particulate matter in liquid, is greatly saved cost of labor And the service life of immersible pump.

In addition, as shown in Figure 4-Figure 7, the immersible pump of the utility model further includes for tie-plate 6 and machine barrel 1 to be connected to Hermetical connecting structure together, the Hermetical connecting structure include：One end is connect with tie-plate 6, its other end is connect with machine barrel 1 Base 4；It is provided with first resettlement groove 41 of one end of base 4；It is provided with the second resettlement groove 43 of the other end of base 4；Its It is partially disposed in the first resettlement groove 41 and is used to prevent the fluid seepage of pump housing side into the first seal assembly 9 of motor side；Peace It sets and is used to prevent motor side fluid seepage into the second seal assembly 9 ' of pump housing side in the second resettlement groove 43；Wherein, pass through First seal assembly 9 and the second seal assembly 9 ', make the pressure balance of motor two sides.

Specifically, as shown in Figure 5, Figure 6, the base 4 of the utility model is in multi-diameter shaft shape, opens up and be used at 4 center of base For armature spindle 5 along its axially across axis hole 42, the outer wall ring of the major diameter axis of 4 multi-diameter shaft of base, which is set, diametrically to extend outwardly Boss, when manufacture, boss end surface can with the flush of base one end, and be for base to be connect with tie-plate 6, it is excellent Choosing, upper seam allowance 45 is set in described one end of boss, upper seam allowance 45 is concave mouth, correspondingly, being arranged in the lower end of tie-plate 6 Male half coupling is cooperated together with will pass through convex-concave seam allowance for base 4 and tie-plate 6；And the other end of boss and machine barrel 1 connect It connects, it is preferred that the seam allowance 46 under the setting of the boss other end, lower seam allowance 46 are also concave mouth, correspondingly, being arranged in 1 upper end of machine barrel Male half coupling, so that base 4 cooperates together with machine barrel 1 also by convex-concave seam allowance.In addition, under 4 major diameter axis of base Portion's outer wall is also equipped with seal groove 47, to stitch between 1 inner wall of machine barrel and base 4 in placement in seal groove 47 for sealing The sealing ring of gap.

It should be noted that the upper and lower noun of locality being referred to herein, only to show the relative position of involved component, Such as towards pump housing side be it is upper, under being towards motor side.

In addition, offering the end face by one end along its first resettlement groove that portion is recessed axially inward in one end of base 4 41, it offers in the other end of base 4 and is disposed by the end face of its other end along its rotor bearing that portion is serially recessed axially inward Slot 44 and the second resettlement groove 43, the first resettlement groove 41, the second resettlement groove 43, rotor bearing resettlement groove 44 are to be opened in base 4 Center and the circular trough being connected with the axis hole 42 on base 4.Wherein, the first resettlement groove 41, the second resettlement groove 43, rotor bearing The diameter of resettlement groove 44 is all larger than the diameter of axis hole 42, it is preferred that the diameter of rotor bearing resettlement groove 44 is greater than the second resettlement groove 43 diameter.

In addition, being also set up on base 4 for other indispensable structures, such as oil pocket, threaded hole, will be joined with will pass through screw Disk is connect to fix with base.

Wherein, it disposes in the first resettlement groove 41 for preventing the fluid seepage of pump housing side into the first sealing group of motor side Part 9, for preventing motor side fluid seepage into the second seal assembly 9 ' of pump housing side, this is practical for placement in the second resettlement groove 43 Novel immersible pump is made on the inside of motor (referring to rotor side) by the first seal assembly 9 and the second seal assembly 9 ' Guarantee that motor uses the longevity to reduce the risk of leakage of motor medial and lateral with the pressure balance of outside (referring to pump housing side) Life.

Wherein, the first seal assembly 9 includes the following element successively disposed from the bottom to top along the axial direction of base 4：It is placed in Groove is arranged in 41 stationary ring pedestal 91 in first resettlement groove of base 4, the upper end, is rubber material, for sealing the of base Gap between one placement groove groove wall and armature spindle；Its underpart is placed in the stationary ring 92 in the groove of stationary ring pedestal 91, is wear-resisting Part is made of carbofrax material, for axially sealing along armature spindle 5；It is placed in the rotating ring 93 of 92 top of stationary ring, suit In on armature spindle 5, and top stretches out in base 4, is also wearing piece, using graphite material, wherein stationary ring 92 and rotating ring 93 are mutual Friction, plays sealing function；And circlip 94 of its underpart holding outside rotating ring 93,94 top of circlip, which is against, is installed on motor 2 Armature spindle 5 on baffle ring on, and baffle ring top is against the inner wall of bowl-type water proof circle 7,7 centre bore of bowl-type water proof circle and shaft coupling Be connected through a screw thread and be fixed on base 4.It is rubber in addition, being also equipped with rotating ring lock sleeve 95 on the top of 93 inner wall of rotating ring Glue material matter guarantees that rotating ring 93 and armature spindle 5 can synchronous rotaries for locking rotating ring 93 and armature spindle 5.

Wherein, the structure of the second seal assembly 9 ' is identical as the first seal assembly 9, unlike, the second seal assembly 9 ' Each element installation direction and each element of the first seal assembly 9 direction it is exactly the opposite, i.e., along base 4 it is axial from top to bottom according to Secondary is stationary ring pedestal 91, stationary ring 92, rotating ring 93, circlip 94, and its 94 lower part of circlip is against the armature spindle 5 for being installed on motor 2 On bearing 3 (as shown in Figure 4, Figure 5).

The pump housing, is connected to motor by base and is integrated by the Hermetical connecting structure of the utility model, and in the upper of base Lower both ends dispose seal assembly respectively, when immersible pump underwater penetration reaches 60 meters or more, guarantee motor external environment hydraulic pressure (as Pump housing side) leakage will not be constituted to environment in motor (as motor side), guarantee the balance of motor external and internal pressure, reduces leakage wind Danger, to guarantee motor service life.

In conclusion compared with prior art, the floating type impeller immersible pump of the utility model has the following advantages that：

1, the floating type impeller immersible pump of the utility model has the floating type impeller of multiple single-stages, between every grade of impeller mutually not It influences and can move freely, change gap with the size of medium, reduce friction, be not required to manually adjust impeller clearance, save significantly About cost of labor can keep the balance of motor external and internal pressure, guarantee that the sealing of motor has in addition, having sealing connecting component Good result improves the service life of immersible pump, greatlys save use cost.

2, the floating type impeller immersible pump of the utility model, the pump housing is connected to motor by base, at the both ends of base Resettlement groove is respectively set, and disposes seal assembly respectively in resettlement groove, ensures that the pressure balance inside and outside motor, It effectively prevent motor side and the liquid of pump housing side to leak mutually, improves the service life of immersible pump, greatly save use cost.

Although being explained in detail above to the utility model, the utility model is without being limited thereto, the skill of the art Art personnel can be modified with principle according to the present utility model, therefore, all according to the various of the principles of the present invention progress Modification all should be understood as falling into the protection scope of the utility model.

Claims (9)

1. a kind of floating type impeller immersible pump, motor, the pump housing with pump barrel, the connection being connect with pump barrel including having machine barrel Disk, the pump housing include pump barrel, impeller sets, pump shaft and guide vane group, it is characterised in that：

The impeller sets of the pump housing include being placed on that the pump shaft is outer and multiple single-stages for axially setting gradually along pump shaft are floating type Impeller；

The guide vane group include be nested with outside the pump shaft and between multiple guide vanes that pump shaft is axially set gradually, adjacent guide vane Dispose the floating type impeller of single-stage；

Wherein, clearance fit between the floating type impeller of the single-stage and the pump shaft, is adjusted automatically so as to the size according to medium Save its gap between adjacent guide vane；

Wherein, the bottom of the floating type impeller of the single-stage is provided with for reducing the floating type impeller of single-stage and guide vane adjacent thereto Between active force rubber pad.

2. floating type impeller immersible pump according to claim 1, which is characterized in that the upper surface setting of the guide vane is useful In the rubber pad resettlement groove for temporarily disposing the rubber pad.

3. floating type impeller immersible pump according to claim 1, which is characterized in that the lower end surface setting of the guide vane is useful In the impeller resettlement groove for temporarily disposing the floating type impeller of the single-stage.

4. floating type impeller immersible pump according to claim 3, which is characterized in that the upper end of the floating type impeller of single-stage Face is provided with the chuck for being plugged in the impeller resettlement groove protruded axially outwards along it.

5. floating type impeller immersible pump according to claim 1-4, which is characterized in that further include for will be described The Hermetical connecting structure that tie-plate and the machine barrel link together, the Hermetical connecting structure include：

The base that one end is connect with the tie-plate, its other end is connect with the machine barrel；

It is provided with first resettlement groove of described one end of base；

It is provided with the second resettlement groove of the other end of base；

It is partially disposed in the first resettlement groove and is used to prevent the fluid seepage of pump housing side into the first seal assembly of motor side；

It is placed in the second resettlement groove and is used to prevent motor side fluid seepage into the second seal assembly of pump housing side；

Wherein, by the first seal assembly and the second seal assembly, make the pressure balance of the motor two sides.

6. floating type impeller immersible pump according to claim 5, which is characterized in that first seal assembly includes：

Groove is arranged in the stationary ring pedestal being placed in the first resettlement groove of the base, the upper end；

Its underpart is placed in the stationary ring in the groove of stationary ring pedestal；

The rotating ring being placed in above stationary ring；

Circlip of its underpart holding outside rotating ring.

7. floating type impeller immersible pump according to claim 6, which is characterized in that the circlip top, which is against, is installed on institute It states on the baffle ring on the armature spindle of motor.

8. floating type impeller immersible pump according to claim 7, which is characterized in that the rotating ring top stretches out in the machine Seat.

9. floating type impeller immersible pump according to claim 8, which is characterized in that the structure of second seal assembly with First seal assembly is identical, and circlip lower part is against on the bearing for being installed on the armature spindle of the motor.