CN207178210U - Block-resistant type pumping installations - Google Patents

Abstract

The utility model discloses a kind of block-resistant type pumping installations, its drip irrigation device is to include screw pump and the filter mechanism installed in screw pump arrival end, screw pump includes pump case and screw arbor assembly, the filter mechanism includes shell, fixed support inside the housing, the filter assemblies for being set on support and rotating corresponding thereto, screw arbor assembly drives filter assemblies to rotate by gear drive, with being connected inside pump case inside filter assemblies, import is provided with along generatrix direction in the side wall of shell, is provided with and supports to the scraper plate of filter assemblies positioned at import both sides on shell.The utility model solves the problems, such as existing screw pump because being resulted in blockage in oil containing impurity.

Description

Block-resistant type pumping installations

Technical field

Hydraulic test is the utility model is related to, in particular, it is related to a kind of block-resistant type pumping installations.

Background technology

Screw pump is volume type rotor pump, and it is to change by the volume of the annular seal space formed by screw and bushing to suck With discharge liquid.Screw pump by screw rod number be divided into single-screw (single screw) pump, it is double, three and five-screw pump.The characteristics of screw pump is flow Steadily, pressure fluctuation is small, has low suction capacity, noise, efficiency high, long lifespan, reliable operation；And the advantages of its protrusion is conveying Vortex is not formed during medium, to the sticky insensitive of medium, can transfer of highly viscous medium.

Intermeshing and screw rod and the tight fit of lining inwall due to each screw rod, in the suction inlet and outlet of pump Between, one or more sealing spaces will be divided into.With the rotation and engagement of screw rod, suction of these sealing spaces in pump Enter end constantly to be formed, by suck in room it is liquid-filled wherein and self-priming is entered the room and continuously elapsed to outlet side axially along a screw, The liquid that would be enclosed in each space is constantly discharged, the situation constantly pushed ahead in thread-whirling just as a nut that Sample, wherein thread turns regard liquid as, and screw thread is equivalent to feelings of the liquid inside screw pump when rotating when the screw is rotated Shape, here it is the basic functional principle of screw pump.

Authorization Notice No. is that CN203686540U utility model patent discloses a kind of vertical hanging type three screw pump unit, is wrapped Include vertical outstanding three screw pump, motor, connection component, shaft coupling, jackshaft and the blow-off pipe set, three screw pump lower end be provided with The vertical pump inlet of fuel tank oil level, upper end are connected by connection component and jackshaft, shaft coupling and motor, and three screw pump goes out Mouth is connected with bite type butt joint by blow-off pipe；Connection component is made up of frame plate and link, and shaft coupling uses cydariform Gear coupling, equipped with the protective cover for being provided with window thereon on link.The utility model can be used for petrol station system, low-tension pulse Dynamic, low noise, No leakage and safe and reliable, pump inlet immerses fluid using vertical orientations, but has the following disadvantages, and contains in oil During impurity, impurity can enter in screw pump with oil, and long-term use of impurity can be accumulated in screw pump and result in blockage, and influence oil Conveying.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of block-resistant type pumping installations, The suction inlet of pump filters to oil, avoids blocking.

To achieve the above object, the utility model provides following technical scheme：A kind of block-resistant type pumping installations, including spiral shell Bar pump and the filter mechanism installed in screw pump arrival end, screw pump include pump case and screw arbor assembly, and the filter mechanism includes Shell, fixed support inside the housing, the filter assemblies for being set on support and rotating corresponding thereto, screw arbor assembly pass through tooth Wheel transmission driving filter assemblies rotate, and with being connected inside pump case inside filter assemblies, are opened in the side wall of shell along generatrix direction There is import, be provided with and support to the scraper plate of filter assemblies positioned at import both sides on shell.

Produce suction by using above-mentioned technical proposal, during screw rod pump work, oil by filter assemblies by screw arbor assembly from One end is transported to the other end, and the impurity in oil is blocked in outside filter assemblies, avoids impurity and is stockpiled in screw pump and causes blocking. Meanwhile filter assemblies rotate in the presence of screw arbor assembly, scraper plate on shell moves with respect to filter assemblies and by filter assemblies The impurity on surface scrapes off, and keeps the good permeability of filter assemblies, and avoid oil enters flow-reduction.

The utility model is further arranged to：The screw arbor assembly includes driving screw, and the end of driving screw is coaxially fixed with Driving gear, rotated coaxially by power transmission shaft on shell and be connected with driven gear, driven gear engages with driving gear, filtering group Part is fixedly connected with power transmission shaft.

By using above-mentioned technical proposal, drive driving gear to rotate when driving screw rotates, engaged with driving gear from Moving gear rotates, and the filter assemblies being fixedly connected with driven gear by rotary shaft rotate, and make full use of the power of driving screw, keep away Exempt to set drive mechanism in addition so that structure is compacter.

The utility model is further arranged to：The support includes two two retainer rings, connection fixations be arrangeding in parallel Two dividing plates of ring and it is fixedly connected, is driven with shell close to one end of screw pump along the axially arranged sleeve pipe of retainer ring, dividing plate Axle is through sleeve pipe and relatively rotates.

By using above-mentioned technical proposal, when power transmission shaft drives filter assemblies rotation, support can remain stationary as.

The utility model is further arranged to：The filter assemblies include and the support ring of retainer ring rotation connection, fixation Screen pack in support ring.

By using above-mentioned technical proposal, screen pack is supported by support ring, reduces the possibility of depression, improve screen pack with Compactness between scraper plate, such scraper plate strike off cleaner to the impurity for filtering net surface.

The utility model is further arranged to：The pump case is provided with outflow port, and outflow port is fixed with output precision, output Component includes the discharging tube connected with outflow port.

By using above-mentioned technical proposal, oil is discharged after screw pump from outflow port, and the oil of discharge is along discharging tube stream To precalculated position, the conveying of oil is completed.

The utility model is further arranged to：The dividing plate will be divided into suction passage and discharge runner inside screen pack, Through hole and via are provided with close to one end of screw pump on shell, suction passage, with being connected inside pump case, discharges runner by through hole Connected by branch pipe with discharging tube, corresponding discharge flow passage area is provided with strip mouth along generatrix direction on shell.

By using above-mentioned technical proposal, oil is entered after filter assemblies from suction passage influent stream, from discharging tube discharge An oily part flows to discharge runner from branch pipe, and then oil flows out through screen pack from strip mouth, and oil will be attached to the net of screen pack Minute impurities on eye are taken out of, keep the permeability of screen pack.

The utility model is further arranged to：By shaft coupling and motor connection, shaft coupling is externally provided with interior the driving screw The hollow protective cover in portion, protective cover are provided with perforation, and pump case is provided with screwed hole corresponding with perforation, and pump case passes through with protective cover The bolt being arranged in perforation coordinates with screwed hole to be fixed.

By using above-mentioned technical proposal, shaft coupling is protected by protective cover, and pump case saves with protective cover compared with traditional approach Flange connection is gone, installation is more convenient.

The utility model is further arranged to：The screw arbor assembly also includes one or two secondary spiral shell engaged with driving screw Bar.

By using above-mentioned technical proposal, the feed flow increase of screw pump has that suction capacity is strong, suction head is strong Advantage.

The utility model is further arranged to：The opening end of the protective cover is fixed with the fixed plate of annular, in fixed plate Provided with mounting hole, discharging tube is connected with mounting hole flange, and connecting tube is connected with another side flange of mounting hole.

By using above-mentioned technical proposal, the position of discharging tube can be fixed in advance, only need during use to install connecting tube, It is easy to onsite application.

In summary, the utility model has the advantages that compared to prior art：1. filter mechanism is in fluid Impurity filtered, avoid impurity from being resulted in blockage into screw pump, improve working life；2. filter assemblies keep rotating shape State, scraper plate strike off the large granular impurity for filtering net surface, and reducing impurity may in screen pack surface sediment；3. flowed from branch pipe The oil gone out is discharged after filter screen from strip mouth, and screen pack is cleaned using a small amount of oil, improves the penetrating of screen pack Property.

Brief description of the drawings

Fig. 1 is that embodiment shows discharging tube and the axonometric drawing of pump case attachment structure；

Fig. 2 is the axonometric drawing that embodiment shows filter mechanism import and protective cover and fixed board connecting structure；

Fig. 3 is that embodiment shows filter mechanism and the sectional view of screw pump junction internal structure；

Fig. 4 is the explosive view that embodiment shows screw pump internal structure；

Fig. 5 is that embodiment shows protective cover and the explosive view of pump case attachment structure；

Fig. 6 is the axonometric drawing of filter mechanism in embodiment；

Fig. 7 is the explosive view that filter mechanism internal structure is shown in embodiment；

Fig. 8 is the enlarged drawing in rotating shaft and shell and filter assemblies attachment structure A portions in figure 3 in display filter mechanism；

Fig. 9 is the enlarged drawing in filter assemblies and holder pivots attachment structure B portions in figure 3 in display filter mechanism；

Figure 10 is the enlarged drawing in the fixation ring structure C portions in the figure 7 of display support；

Figure 11 is the transverse sectional view of display filter mechanism inner flow passage distributed architecture.

In figure：1st, motor；11st, output shaft；2nd, protective cover；21st, fixed plate；22nd, axis hole；23rd, perforate；24th, mounting hole；3、 Screw pump；31st, pump case；311st, accommodating chamber；312nd, outflow port；313rd, rise as high as the banks；314th, screwed hole；32nd, screw arbor assembly；321st, main spiral shell Bar；3211st, raised line；322nd, sub-screw；3221st, groove；33rd, driving gear；34th, gear-box；4th, filter mechanism；41st, shell； 411st, import；412nd, through hole；413rd, via；414th, scraper plate；415th, strip mouth；42nd, support；421st, retainer ring；4211st, it is sliding Groove；422nd, sleeve pipe；423rd, dividing plate；43rd, filter assemblies；431st, support ring；432nd, screen pack；4321st, suction passage；4322nd, arrange Go out runner；433rd, end plate；4331st, sliding block；44th, driven gear；441st, power transmission shaft；5th, output precision；51st, discharging tube；511st, bottom Seat；52nd, connecting tube；53rd, branch pipe；6th, shaft coupling.

Embodiment

The utility model is described in further detail below in conjunction with the accompanying drawings.

Wherein identical parts are presented with like reference characters.It should be noted that the word used below in description Language "front", "rear", "left", "right", "up" and "down" refer to the direction in accompanying drawing 1, word " bottom surface " and " top surface ", " interior " and " outer " is referred respectively to towards or away from the direction of particular elements geometric center.

Embodiment：

Block-resistant type pumping installations, as depicted in figs. 1 and 2, including it is sequentially connected the motor 1, protective cover 2, screw pump 3 of setting With filter mechanism 4, filter mechanism 4 is arranged on the influent stream end of screw pump 3, and going out to flow end in screw pump 3 is connected with output precision 5, electricity Screw pump 3 is driven to work when machine 1 works, oil is entered in screw pump 3 by the filtering of filter mechanism 4, then from output precision 5 It is transported to specified location.

Referring to figs. 2 and 3 protective cover 2 is inner hollow, the cylindrical housings of open at one end, in the opening one of protective cover 2 End is connected with the fixed plate 21 of annular, and motor 1 is bolted with fixed plate 21.It is remote in protective cover 2 with reference to Fig. 4 and Fig. 5 Axis hole 22 is provided with the axis of open one end, some perforation 23 is uniformly provided with around axis hole 22, is provided with the edge of fixed plate 21 Mounting hole 24.

Referring to figs. 2 and 3 screw pump 3 includes pump case 31 and the screw arbor assembly 32 inside pump case 31.In pump case 31 Portion is provided with the accommodating chamber 311 of installation screw arbor assembly 32, the open at both ends of accommodating chamber 311 along its axis direction.Pump case 31 is close to anti- One end of shield 2 is provided with outflow port 312, and outflow port 312 connects with accommodating chamber 311.With reference to Fig. 4 and Fig. 5, in the outer wall position of pump case 31 It is provided with the position of outflow port 312 and rises as high as the banks 313.Some screwed holes 314, screw thread are provided with the end face of protective cover 2 in pump case 31 Hole 314 is corresponded with perforation 23, and pump case 31 is bolted with protective cover 2, and bolt passes through perforation 23 from the inside of protective cover 2 It is threadedly coupled with screwed hole 314.

With reference to figure 3 and Fig. 4, screw arbor assembly 32 includes driving screw 321 and two sub-screws 322, the surface of driving screw 321 are set There is a spiral raised line 3211, sub-screw 322 is provided with spiral groove 3211, the groove 3211 on two sub-screws 322 The hand of spiral on the contrary, driving screw 321 engages respectively with two sub-screws 322.As needed, screw arbor assembly 32 can also be single Screw rod or twin-screw are set.

Driving screw 321 is connected through axis hole 22 with the output shaft 11 of motor 1 by shaft coupling 6, driving screw 321 and pump case 31 It is rotatablely connected by bearing, accommodating chamber 311 is sealed at bearing by seal.When so motor 1 works, output shaft 11 rotates And power is delivered to driving screw 321 by shaft coupling 6, driving screw 321 rotates, two sub-screws 322 engaged with driving screw 321 Rotate, oil is inhaled into accommodating chamber 311 from one end, and then oil is forced into outflow port 312 in the presence of screw arbor assembly 32 Put and be discharged.

With reference to figure 4 and Fig. 5, discharging tube 51 that output precision 5 includes being connected with outflow port 312, it is connected with discharging tube 51 Connecting tube 52 and the branch pipe 53 for being arranged on discharging tube 51, one end of branch pipe 53 connect with discharging tube 51, the other end and filter mechanism 4 Connection.

It has been wholely set base 511 in the bottom of discharging tube 51, base 511 313 is adapted with rising as high as the banks on pump case 31, this Sample base 511 can be brought into close contact with pump case 31.Base 511 is bolted to connection with pump case 31, and base 511 is with rising as high as the banks 313 contact surfaces are sealed by sealing gasket.

The other end of discharging tube 51 is connected with the mounting hole 24 in fixed plate 21 by flange, one end of connecting tube 52 and peace Dress hole 24 is connected by flange, and the other end is connected with external container, so from the oil that outflow port 312 is extruded from discharging tube 51 and even Adapter 52 is transported to precalculated position.

With reference to figure 3 and Fig. 4, driving gear 33 is coaxially fixed with the end of driving screw 31, pump case 31 is close to filter mechanism 4 One end be fixedly connected with annular gear-box 34.With reference to Fig. 5, filter mechanism 4 include be fixedly connected with pump case 31 shell 41, Support 42 inside shell 41, the filter assemblies 43 for being coated on the outside of support 42 and axially rotate installed in shell Driven gear 44 outside 41, driven gear 44 engage with driving gear 33, and the outline diameter of shell 41 is more than the straight of pump case 31 Footpath.

With reference to figure 6 and Fig. 7, shell 41 is in the cylinder for inner hollow, is made preferably with stainless steel.The side of shell 41 Wall is provided with the import 411 of rectangle along generatrix direction, and the radian value of import 411 is preferably not below pi/2, to provide sufficiently large influent stream Amount.Through hole 412 and via 413 are provided with close to one end of driven gear 44 in shell 41, through hole 412 and via 413 are located at diameter Both ends.With reference to Fig. 4 and Fig. 7, via 413 connects with branch pipe 53.

Support 42 includes two retainer rings 421 be arrangeding in parallel, two dividing plates 423 for connecting two retainer rings 421 and edge The axially arranged sleeve pipe 422 of retainer ring 421.Driven gear 44 is rotatablely connected by power transmission shaft 441 and shell 41, power transmission shaft 441 Through sleeve pipe 422 and relatively rotate.

Filter assemblies 43 include the support ring 431 and screen pack 432, the both ends of screen pack 432 and branch being connected with support 42 Pushing out ring 431 is fixedly connected.Screen pack 432 can be stainless steel cloth, and mesh number is more preferably greater than 200 mesh.In order to reduce screen pack 432 The possibility of central region sinking, support bar, the both ends of support bar and support ring are provided with along its generatrix direction in the inwall of screen pack 432 431 fix.

With reference to figure 7 and Fig. 8, end and the shell 41 of power transmission shaft 441 are rotatablely connected by bearing, screen pack 432 it is another End is fixedly connected by end plate 433 with power transmission shaft 441.With reference to Fig. 9 and Figure 10, circumferentially arranged with chute in retainer ring 421 4211, end plate 433 is provided with the sliding block 4331 being adapted with chute 4211, and sliding block 4321 rotates with the Relative sliding of chute 4211. In order to prevent end plate 433 from being separated with retainer ring 421, the cross section of chute 4211 is in interior big outer small shape such as T-shaped.So work as biography When moving axis 441 rotates, power transmission shaft 441 drives the end plate 4331 for being secured to connection to rotate, the filtering being fixed on end plate 4331 Net 432 rotates.

With reference to figure 11, two dividing plates 423 are fixed on shell 41 close to one end of through hole 412, and two dividing plates 423 will filter Cavity inside net 432 is divided into two regions：The region connected with through hole 412 is suction passage 4321, is connected with via 413 Region is discharge runner 4322.So outside oil from import 411 enter by screen pack 432 in suction passage 4321 when, Impurity is blocked in outside screen pack 432.In order to remove the impurity on screen pack 432 in time, positioned at import 411 on shell 41 Both sides are fixed with scraper plate 414, and when such screen pack 432 rotates, scraper plate 414 can scrape off partial impurities.On the top edge of shell 1 Generatrix direction is provided with strip mouth 415 so that discharge runner 4322 and ft connection.

The working method of the block-resistant type pumping installations is as follows：

Filter mechanism 4 is entered in fluid together with screw pump 3 during use, starts motor 1, the task driven of motor 1 Screw pump 3 works.The suction passage 4321 that oil is entered inside filter mechanism 4 from import 411, impurity is blocked in screen pack Outside 432.Clean oily via through holes 412 enter gear-box 34, are then drawn into screw pump 3, and clean is oily from discharging tube 51 outflows.

The driving screw 31 of screw pump 3 drives driving gear 33 to rotate during rotation, is engaged with driving gear 33 Driven gear 44 rotates.Rotated with the filter assemblies 43 that driven gear 44 is fixedly connected by power transmission shaft 441.Scraper plate 414 was incited somebody to action Large granular impurity on filter screen 432 scrapes off, and the mesh that short grained impurity is attached to screen pack 432 is relayed to the opposite side of shell 41, The screen pack 432 not being plugged in shell 41 is produced at import 411 simultaneously, keeps oil-feed smooth.

A part of oil enters discharge runner 4322, strip mouth of the oil by screen pack 432 from shell 41 from branch pipe 53 415 outflows, the oil of outflow take the fine impurities being attached on the mesh of screen pack 432 out of, and cleaning effect is played to screen pack 432.

Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.

Claims (9)

1. a kind of block-resistant type pumping installations, including screw pump (3) and the filter mechanism (4) installed in screw pump (3) arrival end, spiral shell Bar pump (3) includes pump case (31) and screw arbor assembly (32), it is characterised in that：The filter mechanism (4) includes shell (41), fixed In the internal support (42) of shell (41), the filter assemblies (43) for being set on support (42) and rotating corresponding thereto, screw rod group Part (32) drives filter assemblies (43) to rotate by gear drive, and filter assemblies (43) are internal with being connected inside pump case (31), Import (411) is provided with along generatrix direction in the side wall of shell (41), is provided with and supports to mistake positioned at import (411) both sides on shell (41) Filter the scraper plate (414) of component (43).

2. block-resistant type pumping installations according to claim 1, it is characterised in that：The screw arbor assembly (32) includes driving screw (321), the end of driving screw (321) is coaxially fixed with driving gear (33), is coaxially turned by power transmission shaft (441) on shell (41) Dynamic to be connected with driven gear (44), driven gear (44) engages with driving gear (33), filter assemblies (43) and power transmission shaft (441) It is fixedly connected.

3. block-resistant type pumping installations according to claim 2, it is characterised in that：The support (42) includes what is be arranged in parallel Two retainer rings (421), two dividing plates (423) of two retainer rings (421) of connection and along the axially arranged set of retainer ring (421) Manage (422), dividing plate (423) is fixedly connected close to one end of screw pump (3) with shell (41), and power transmission shaft (441) passes through sleeve pipe (422) and relatively rotate.

4. block-resistant type pumping installations according to claim 3, it is characterised in that：The filter assemblies (43) include and fixation The support ring (431) of ring (421) rotation connection, the screen pack (432) being fixed in support ring (431).

5. block-resistant type pumping installations according to claim 4, it is characterised in that：The pump case (31) is provided with outflow port (312), outflow port (312) is fixed with output precision (5), and output precision (5) includes the discharging tube connected with outflow port (312) (51)。

6. block-resistant type pumping installations according to claim 5, it is characterised in that：The dividing plate (423) is by screen pack (432) Inside is divided into suction passage (4321) and discharge runner (4322), is provided with and leads to close to one end of screw pump (3) on shell (41) Hole (412) and via (413), suction passage (4321) with being connected inside pump case (31), discharge runner by through hole (412) (4322) connected by branch pipe (53) with discharging tube (51), corresponding runner (4322) region of discharging is along generatrix direction on shell (41) Provided with strip mouth (415).

7. block-resistant type pumping installations according to claim 6, it is characterised in that：The driving screw (321) passes through shaft coupling (6) it is connected with motor (1), shaft coupling (6) is externally provided with the protective cover (2) of inner hollow, and protective cover (2) is provided with perforation (23), Pump case (31) is provided with screwed hole (314) corresponding with perforation (23), and pump case (31) is with protective cover (2) by being arranged in perforation (23) bolt on coordinates with screwed hole (314) to be fixed.

8. block-resistant type pumping installations according to claim 2, it is characterised in that：The screw arbor assembly (32) also includes one Or two sub-screws (322) engaged with driving screw (321).

9. block-resistant type pumping installations according to claim 7, it is characterised in that：The opening end of the protective cover (2) is fixed There is the fixed plate (21) of annular, fixed plate (21) is provided with mounting hole (24), and discharging tube (51) is connected with mounting hole (24) flange, Connecting tube (52) is connected with another side flange of mounting hole (24).