CN207660848U - Diving slurry pump - Google Patents

Abstract

Diving slurry pump belongs to mud pump technical field.It can discharge the medium that grain size is big, concentration is big, and lift is pumped higher than conventional mud, and can completely eliminate the axial force of impeller generation during pump operation, and the service life of slush pump is made to increase substantially.The region formed between the connecting seat, the pump housing and impeller three is depressor area, the balancing axial power apparatus is arranged in depressor area, the balancing axial power apparatus is mounted on the output shaft of motor, the positive blade of two of the impeller is involute blade, and two involute blades are symmetrical arranged relative to impeller center.The utility model can be such that high concentration medium passes through, pollution discharge capability is strong, larger solid particle can be passed through, big cornerite blade design can also be effectively increased the effect that pump lift and the utility model make bearing be solely subjected to radial load, the normal operation that ensure that bearing increases the service life of the utility model slush pump.

Description

Diving slurry pump

Technical field

The utility model belongs to mud pump technical field, more particularly to a kind of diving slurry pump.

Background technology

Diving slurry pump is suitable for conveying the media such as silt, ore pulp, coal slurry, sandstone containing larger solid particle, in heat The industrial and mining enterprises such as power plant, power station, sewage treatment plant are widely used.Slush pump discharge medium concentration currently on the market It is low, particle is small, lift is low, easy blocking, cannot meet the needs of users.In addition, the imbalance of axial force frequently results in bearing Damage, makes the service life reduction of slush pump.Therefore, the design of diving slurry pump still has much room for improvement, and how to improve slush pump Properties, will can successfully contain that solid particle is big, highly concentrated medium smooth delivery of power is to purpose height, how solve The balance of axial force, the service life for improving pump are current urgent problems to be solved.

Invention content

The purpose of this utility model is to provide a kind of diving slurry pumps, can discharge the medium that grain size is big, concentration is big, raise Journey is pumped higher than conventional mud, and can completely eliminate the axial force of impeller generation during pump operation, keeps the service life of slush pump big Amplitude improves.

Technical solution adopted in the utility model is：Diving slurry pump, including motor, connecting seat, the pump housing, impeller, pump Body lid, water-logged base, pedestal, impeller nut and fixing nut；The pump housing upper end is fixedly connected by connecting seat with motor, described Pump casing cover is arranged between pump housing lower end and water-logged base, detachably connects between the water-logged base, pump casing cover and pump housing lower end three It connects, water-logged base lower end is detachably connected with pedestal, and the impeller is arranged in the pump housing, and the output shaft of impeller and motor detachably connects It connects, and impeller is fixed on by fixing nut and impeller nut on the output shaft of motor；The diving slurry pump further includes balance Axial power apparatus, the region formed between the connecting seat, the pump housing and impeller three are depressor area, the balancing axial thrust dress It installs in depressor area, the balancing axial power apparatus is mounted on the output shaft of motor, two positive blades of the impeller It is involute blade, two involute blades are symmetrical arranged relative to impeller center.

The beneficial effects of the utility model are：

1. the positive blade of the utility model is involute blade, high concentration medium can be made to pass through, pollution discharge capability is strong, Can be by larger solid particle, the cornerite of positive blade is 300 ° ~ 330 °, and big cornerite blade design can also be effectively increased pump and raise The back blade of journey, impeller can be with balance portion axial force.

2. the accessory impeller of the utility model can be with balancing axial thrust, the back blade dual structure balance shaft of accessory impeller and impeller Xiang Li makes bearing be solely subjected to the effect of radial load, ensure that the normal operation of bearing, increases making for the utility model slush pump Use the service life.

3., can be by impeller nut, stirring wheel when the medium that slush pump is pumped contains very small solid particle or clear water And two round nuts disassemble, and directly work as sewage pump and use, can improve the efficiency of pump in this way, and can reduce user Buying expenses, realize one pump it is dual-purpose.

Description of the drawings

Fig. 1：The utility model front view；

Fig. 2：The front view of the utility model impeller；

Fig. 3：The right view of Fig. 2；

Fig. 4：The left view of Fig. 2；

Fig. 5：The front view of the utility model accessory impeller；

Fig. 6：The left view of Fig. 5；

Fig. 7：The front view of the utility model stirring wheel；

Fig. 8：The left view of Fig. 7；

Fig. 9：The sectional view of Fig. 8；

Wherein：1- terminal boxes；2- balancing axial power apparatus；3- motors；4-O type circles；5- connecting seats；The output of 6- motors Axis；7- accessory impeller box bodys；8- accessory impellers；9- accessory impeller cover boards；The 10- pump housings；11- impellers；12- pump casing covers；13- water-logged bases；14- Pedestal；15- stirring wheels；16- round nuts；17- wheel bodys；18- impeller nuts；The positive blades of 19-；20- back blades；21- fixing nuts； 22- keys；23- stirring blades.

Specific implementation mode

As shown in Fig. 1 ~ Fig. 9, diving slurry pump, including motor 3, connecting seat 5, the pump housing 10, impeller 11, pump casing cover 12, into Water seat 13, pedestal 14, impeller nut 18 and fixing nut 21；The motor 3 is equipped with terminal box 1,1 eccentric setting of the terminal box On motor 3,10 upper end of the pump housing is fixedly connected by connecting seat 5 with motor 3, and the pump casing cover 12 is arranged under the pump housing 10 Between end and water-logged base 13, it is detachably connected by screw between 10 lower end three of the water-logged base 13, pump casing cover 12 and the pump housing, 13 lower end of water-logged base is detachably connected with pedestal 14 by bolt, as the support of slush pump, enables media to smoothly enter 11 entrance of impeller, the impeller 11 are arranged in the pump housing 10, and impeller 11 and the output shaft 6 of motor 3 are detachably connected by key 22, And impeller 11 is fixed on by fixing nut 21 and impeller nut 18 on the output shaft 6 of motor 3；The diving slurry pump further includes Balancing axial power apparatus 2, the region formed between 11 three of the connecting seat 5, the pump housing 10 and impeller are depressor area, described flat The axial power apparatus 2 of weighing apparatus is arranged in depressor area, and the balancing axial power apparatus 2 is mounted on the output shaft 6 of motor 3, the leaf Two positive blades 19 of wheel 11 are involute blade, and two involute blades are relative to 11 center symmetric setting of impeller.

The impeller 11 includes the positive blade 19 of wheel body 17, two and multiple back blades 20, described two positive blades 19 and wheel The positive integrally connected of body 17,17 back side of the wheel body are circle, the multiple back blade 20 perpendicular to the cross sectional shape of central shaft With 17 back side integrally connected of wheel body, multiple back blades 20 are along the radial setting of wheel body 17.

The cornerite of the positive blade of two of the impeller 11 19 is 300 ° ~ 330 °（Preferably 330 °）.

The balancing axial power apparatus 2 includes accessory impeller box body 7, accessory impeller 8 and accessory impeller cover board 9；The accessory impeller box Body 7, accessory impeller 8 and accessory impeller cover board 9 are set gradually from top to bottom, and accessory impeller cover board 9 is removable by bolt with accessory impeller box body 7 Connection is unloaded, accessory impeller box body 7 is detachably connected with the pump housing 10 by bolt, and accessory impeller 8 and the output shaft 6 of motor 3 pass through key 22 Connection, the back blades that the accessory impeller 8 is equipped with are uniformly arranged.

Accessory impeller 8 plays the role of balancing axial thrust and sealing, prevents inside dielectric leakage stepper motor 3.

The diving slurry pump further includes stirring wheel 15 and two round nuts 16, the stirring wheel 15 and 18 spiral shell of impeller nut Line connects, and described two round nuts 16 are connect with 6 end thread of the output shaft of motor 3, for fixing stirring wheel 15.

The sludge of deposition can be stirred into turbulent flow by stirring wheel 15, without auxiliary device in the case of realize high concentration it is defeated It send.

It is uniformly fixed on the wheel shaft of the stirring wheel 15 that there are three stirring blade 23, three stirring blades 23 and levels Angle between direction is 60 ° -80 °（Preferably 75 °）.

The diving slurry pump further includes two O-rings 4, between 10 upper end of the pump housing and connecting seat 5 and the pump housing 10 It is sealed respectively by O-ring 4 between pump casing cover 12.

Operation principle：Pump is before use, first slip into slush pump in medium, and after transmission operation, the output shaft 6 of motor 3 rotates Get up, accessory impeller 8, impeller 11, fixing nut 21, impeller nut 18, stirring wheel 15 and two round nuts 16 is driven to synchronize and turn Dynamic, the sludge of deposition is stirred into turbulent flow by stirring wheel 15, and particle is suspended, the medium of conveyer belt particle to impeller 11 into Mouthful, medium is increased by the effect energy of the positive blade 19 of rotary blade 11, potential energy, pressure energy and kinetic energy is generated, in centrifugal force It is got rid of under effect into 10 volute chamber of the pump housing, is finally discharged into pipeline from the water outlet of the pump housing 10, be transported to the eminence of user's requirement.Work as mud It, can be by impeller nut 18, stirring wheel 15 and two circles when the medium that stock pump is pumped contains very small solid particle or clear water Nut 16 disassembles, and the axial restraint of impeller 11 can be only realized with fixing nut 21.Medium in the pump housing 10 only allows It is discharged by water outlet, seals between the pump housing 10 and pump casing cover 12 and realized by O-ring 4.The sealing of the pump housing 10 and connecting seat 5 It is realized by O-ring 4.In addition, accessory impeller 8 balancing axial thrust but also can prevent dielectric leakage in low-pressure area to motor 3 It is interior.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (7)

1. a kind of diving slurry pump, including motor（3）, connecting seat（5）, the pump housing（10）, impeller（11）, pump casing cover（12）, water inlet Seat（13）, pedestal（14）, impeller nut（18）And fixing nut（21）；The pump housing（10）Upper end passes through connecting seat（5）With electricity Machine（3）It is fixedly connected, the pump casing cover（12）It is arranged in the pump housing（10）Lower end and water-logged base（13）Between, the water-logged base （13）, pump casing cover（12）With the pump housing（10）It is detachably connected between the three of lower end, water-logged base（13）Lower end and pedestal（14）It is removable Unload connection, the impeller（11）It is arranged in the pump housing（10）It is interior, impeller（11）With motor（3）Output shaft（6）It is detachably connected, and Impeller（11）Pass through fixing nut（21）And impeller nut（18）It is fixed on motor（3）Output shaft（6）On；It is characterized in that： The diving slurry pump further includes balancing axial power apparatus（2）, the connecting seat（5）, the pump housing（10）And impeller（11）Three Between the region that is formed be depressor area, the balancing axial power apparatus（2）It is arranged in depressor area, the balancing axial power apparatus （2）Mounted on motor（3）Output shaft（6）On, the impeller（11）Two positive blades（19）It is involute blade, two The involute blade is relative to impeller（11）Center symmetric setting.

2. a kind of diving slurry pump according to claim 1, it is characterised in that：The impeller（11）Including wheel body（17）、 Two positive blades（19）And multiple back blades（20）, described two positive blades（19）With wheel body（17）Positive integrally connected, it is described Wheel body（17）The back side is circle, the multiple back blade perpendicular to the cross sectional shape of central shaft（20）And wheel body（17）The back side one Body connects, multiple back blades（20）Along wheel body（17）Radial setting.

3. a kind of diving slurry pump according to claim 1 or 2, it is characterised in that：The impeller（11）Two positive leaves Piece（19）Cornerite be 300 ° ~ 330 °.

4. a kind of diving slurry pump according to claim 1, it is characterised in that：The balancing axial power apparatus（2）Including Accessory impeller box body（7）, accessory impeller（8）And accessory impeller cover board（9）；The accessory impeller box body（7）, accessory impeller（8）With accessory lobes wheel cap Plate（9）It sets gradually from top to bottom, accessory impeller cover board（9）With accessory impeller box body（7）It is detachably connected, accessory impeller box body（7）With The pump housing（10）It is detachably connected, accessory impeller（8）With motor（3）Output shaft（6）Connection.

5. a kind of diving slurry pump according to claim 1, it is characterised in that：The diving slurry pump further includes stirring wheel （15）And two round nuts（16）, the stirring wheel（15）With impeller nut（18）It is threadedly coupled, described two round nuts（16） And motor（3）Output shaft（6）End thread connects, for fixing stirring wheel（15）.

6. a kind of diving slurry pump according to claim 5, it is characterised in that：The stirring wheel（15）Wheel shaft on it is uniformly distributed It is fixed that there are three stirring blades（23）, three stirring blades（23）Angle between horizontal direction is 60 ° -80 °.

7. a kind of diving slurry pump according to claim 1, it is characterised in that：The diving slurry pump further includes two O Type circle（4）, the pump housing（10）Upper end and connecting seat（5）Between and the pump housing（10）With pump casing cover（12）Between pass through O respectively Type circle（4）Sealing.