CN209717350U - A kind of efficient centrifugal pump spiral case burnishing device - Google Patents
A kind of efficient centrifugal pump spiral case burnishing device Download PDFInfo
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- CN209717350U CN209717350U CN201822239830.6U CN201822239830U CN209717350U CN 209717350 U CN209717350 U CN 209717350U CN 201822239830 U CN201822239830 U CN 201822239830U CN 209717350 U CN209717350 U CN 209717350U
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- abrasive grain
- spiral case
- pump
- polished
- impeller inducer
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Abstract
A kind of efficient centrifugal pump spiral case burnishing device, including workbench, abrasive grain pond, take out grain unit, agitating device and two polishing units, the abrasive grain pond is mounted on the lower section of workbench, the pumping grain unit includes taking out abrasive grain pump and motor, the motor is located at the rear for taking out abrasive grain pump and motor shaft is connect by shaft coupling with the pump shaft for taking out abrasive grain pump, and the abrasive particle inlet for taking out abrasive grain pump is connect by input channel with abrasive grain pond；Two polishing units are symmetrically arranged, each polishing unit includes impeller inducer, bearing holder (housing, cover), bearing (ball) cover and is polished spiral case, it is polished at the snail shape portion cavity of spiral case and impeller inducer is installed, the impeller inducer of two polishing units is separately mounted on the left and right ends of fixing axle.The utility model provides a kind of efficient centrifugal pump spiral case burnishing device, which not only realizes the purpose for polishing to spiral case inner surface, and realizing energy-saving and emission-reduction, has the characteristics that easy to operate, structure is simple, high-efficient.
Description
Technical field
The utility model relates to a kind of efficient centrifugal pump spiral case burnishing devices.
Background technique
Pumping chamber of the spiral case as centrifugal pump is the important flow passage components of centrifugal pump.Spiral case is usually monoblock cast, work
Surface is more coarse, has larger impact to the efficiency of unit.For the credit rating for improving flow passage components surface, need in spiral case
Surface is polished.Currently used method is to polish by hand spiral case, since spiral case inner wall is curved surface, dynamics and direction
It is difficult to control, low efficiency higher to worker operation skill requirement, hand polish difficulty is very big, it is also difficult to reach such essence
Degree requires.Therefore, centrifugal pump spiral casing inner wall is polished, urgent need develops a kind of suitable burnishing device, reduces casting snail
The surface roughness of shell can reduce the transporting resistance of pumped (conveying) medium, help to improve the efficiency of pump, reach the mesh of energy-saving and emission-reduction
's.
Abrasive Flow Machining is a kind of newest machining process, it is that (admixture has one kind of abrasive grain can with abrasive material
Flow viscoelastic mixture) it is that medium flows through the surface processed needed for workpiece under stress, abrasive flow machining can polish shape
The part of shape complexity has very high superiority than conventional method.
Summary of the invention
Lower, the polishing biggish defect of difficulty that there are working efficiencies in order to overcome existing spiral case polishing technology, this is practical new
Type provides a kind of efficient centrifugal pump spiral case burnishing device, which, which not only realizes, polishes spiral case inner surface,
And the purpose for realizing energy-saving and emission-reduction has the characteristics that easy to operate, structure is simple, high-efficient.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of efficient centrifugal pump spiral case burnishing device, including workbench, abrasive grain pond, take out grain unit, for stirring abrasive grain
The agitating device of abrasive grain and two polishing units, the abrasive grain pond are mounted on the lower section of workbench, the pumping grain unit in pond
Including taking out abrasive grain pump and motor, the motor passes through the pump of shaft coupling and pumping abrasive grain pump positioned at the rear and motor shaft for taking out abrasive grain pump
Axis connection, the abrasive particle inlet for taking out abrasive grain pump are connect by input channel with abrasive grain pond；
Two polishing units are symmetrically arranged, each polishing unit include impeller inducer, bearing holder (housing, cover), bearing (ball) cover and
It is polished spiral case, spiral case is polished and is installed on the workbench, is polished at the snail shape portion cavity of spiral case and impeller inducer is installed, Gu
The impeller inducer of dead axle or so lateral arrangement, two polishing units is separately mounted on the left and right ends of fixing axle, fixing axle
The tapered roller bearing that left and right ends pass through corresponding side polishing unit respectively is rotatably mounted on corresponding bearing holder (housing, cover), accordingly
Bearing (ball) cover, which is located at the outside of corresponding bearing holder (housing, cover) and is fixed on by bolt together with bearing holder (housing, cover), to be polished on spiral case；
The abrasive grain outlet for taking out abrasive grain pump polishes the mill for being polished spiral case of unit by same conveyance conduit with two respectively
The abrasive grain outlet for being polished spiral case of grain import connection, each polishing unit is connect by an output channel with abrasive grain pond respectively；
The bottom for being polished the snail shape portion of spiral case is equipped with abrasive grain and removes mouth, and the abrasive grain removes mouth and snail shape portion's cavity connects
Logical, the abrasive grain, which is removed, is equipped with blocking at mouth.
Further, the impeller inducer includes wheel disc and multiple guide vanes, and multiple guide vanes are according to adjacent guide leaf
The incremental method of piece angle theta is distributed, and the incremental range of guide vane angle theta is between 1.1~1.2 times.
Further, the left end of the conveyance conduit is connect by 90 ° of union elbows with threeway, the left and right ends mouthful of threeway
It is connect respectively by 90 ° of union elbows with connecting tube, each connecting tube passes through a convex flange respectively and is polished snail
The abrasive particle inlet of shell connects, and each output channel is connected also by a convex flange with the abrasive grain outlet for being polished spiral case.
Further, the agitating device includes agitating shaft, stirs impeller inducer, bevel gear box and belt drive unit,
The stirring impeller inducer is mounted on the lower end of agitating shaft and is located in abrasive grain pond, the upper end of the agitating shaft by shaft coupling with
The output axis connection of bevel gear box, the belt drive unit include big belt pulley, small belt pulley and belt, the small belt pulley
It is mounted on the motor shaft of motor, the big belt pulley is mounted on the input shaft of bevel gear box, and the small belt pulley passes through skin
Band is connect with big belt pulley.
Further, the burnishing device further includes the support frame for being used to support conveyance conduit, and support frame as described above includes vertical
Column and the support tube passed through for conveyance conduit, the lower end of the column is fixed on the table, and the upper end of the column is fixed
There is support tube.
Further, each guide vane is V-shaped, and bent angle is 120 °.
Further, the impeller inducer further includes long guide vane, and the tail portion of the long guide vane is fixed on wheel disc
On, the head of long guide vane is just tangent with spiral case cut water.
The beneficial effects of the utility model are mainly manifested in: the purpose of this processing unit (plant) is two spiral cases using back-to-back
Fixed purpose may be implemented in the mode of installation, while offsetting abrasive Flow and entering generated axial force in impeller inducer；Abrasive grain
The guide vane for flowing entrance uses non-uniform Distribution design method, realizes in the biggish situation of initial flow abrasive Flow each
It is evenly distributed between runner, while improving the precision of polishing.There are a long guide vane, long guide vane and spiral case in guide vane
It is in contact at cut water, long guide vane makes abrasive Flow enter impeller inducer in one direction, and avoiding multi-direction flowing makes abrasive grain
The case where stream is unevenly distributed between each runner；The service life of device can be extended, improve polishing efficiency, process water pump spiral casing
Surface roughness reduces the surface roughness of casting spiral case, realizes the purpose of high-precision polishing；The utility model can be right
While centrifugal pump spiral casing inner surface carries out high-precision polishing, supply abrasive grain smoothly by agitating device, while realizing section
The purpose of energy emission reduction.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the sectional view of the utility model polishing unit.
Fig. 4 is the structural schematic diagram for being polished impeller inducer in spiral case.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.
Referring to Fig.1~Fig. 4, a kind of efficient centrifugal pump spiral case burnishing device, including workbench 1, abrasive grain pond 114, pumping abrasive grain
Unit, the agitating device 113 for stirring abrasive grain in abrasive grain pond 114 and two polishing units 3, the abrasive grain pond 114 is mounted on
The lower section of workbench 1, the pumping grain unit include taking out abrasive grain pump 110 and motor 21, and the motor 21, which is located at, takes out abrasive grain pump 110
Rear and motor shaft 22 by shaft coupling 23 with take out abrasive grain pump pump shaft 24 connect, pumping abrasive grain pump 110 abrasive particle inlet pass through
Input channel 111 is connect with abrasive grain pond 114；
Two polishing units 3 are symmetrically arranged, and each polishing unit 3 includes impeller inducer 33, bearing holder (housing, cover) 39, bearing
End cap 310 and it is polished spiral case 32, is polished spiral case 32 and is mounted on workbench 1, be polished at the snail shape portion cavity of spiral case 32
Impeller inducer 33 is installed, the impeller inducer 33 of 37 or so lateral arrangement of fixing axle, two polishing units is separately mounted to fix
On the left and right ends of axis 37, the tapered roller bearing 38 that the left and right ends of fixing axle 37 pass through corresponding side polishing unit respectively can
Rotation is mounted on corresponding bearing holder (housing, cover) 39, and corresponding bearing (ball) cover 310 is located at the outside of corresponding bearing holder (housing, cover) 39 and by bolt 36
It is fixed on and is polished on spiral case 32 together with bearing holder (housing, cover) 39；
The abrasive grain outlet for taking out abrasive grain pump 110 polishes unit 3 with two respectively by same conveyance conduit 6 and is polished spiral case
32 abrasive particle inlet connection, the abrasive grain outlet for being polished spiral case of each polishing unit 3 is respectively by an output channel 2 and abrasive grain
Pond 114 connects；
The bottom for being polished the snail shape portion of spiral case 32 is equipped with abrasive grain and removes mouth, and the abrasive grain removes mouth and snail shape portion cavity
Connection, the abrasive grain, which is removed, is equipped with blocking at mouth.
Further, the impeller inducer 33 includes wheel disc 41 and multiple guide vanes 42, and multiple guide vanes 42 are according to phase
The incremental method of adjacent guide vane angle theta is distributed, and the incremental range of guide vane angle theta is between 1.1~1.2 times.Mill
Flow is larger when grain stream has just enter into spiral case, then progresses into impeller inducer 33, and the adjacent guide vanes angle is incremented by
Method, abrasive Flow enters in each runner of impeller inducer and is evenly distributed in the case where not only realizing, and balances impeller inducer
Radial force, while abrasive Flow is smoothly discharged.
Further, the left end of the conveyance conduit 6 is connect by 90 ° of union elbows 5 with threeway, the left and right ends of threeway
Mouth is connect by 90 ° of union elbows with connecting tube respectively, and each connecting tube passes through a convex flange 35 respectively and thrown
The abrasive particle inlet of light spiral case connects, and each output channel 2 is exported also by a convex flange 31 with the abrasive grain for being polished spiral case
Connection.
Further, the agitating device 113 includes that agitating shaft 115, stirring impeller inducer, bevel gear box 9 and belt pass
Dynamic device 8, the stirring impeller inducer are mounted on the lower end of agitating shaft 115 and are located in abrasive grain pond 114, the agitating shaft 115
Upper end by the output axis connection of shaft coupling 112 and bevel gear box 9, the belt drive unit 8 includes big belt pulley, cuticle
Belt wheel and belt, the small belt pulley are mounted on the motor shaft 22 of motor 21, and the big belt pulley is mounted on bevel gear box 9
On input shaft, the small belt pulley is connect by belt with big belt pulley.
Further, the burnishing device further includes the support frame 7 for being used to support conveyance conduit, and support frame as described above 7 includes
Column and the support tube passed through for conveyance conduit 6, the lower end of the column is fixed on the table, and the upper end of the column is solid
Surely there is support tube.
Further, each guide vane 42 is V-shaped, and bent angle δ is 120 °.It is bent in face of direction of flow, facilitates collection
Abrasive Flow, and abrasive Flow is more stably entered in spiral case.Assuming that the outer diameter of the impeller inducer 33 is R, then water conservancy diversion leaf
The internal diameter r of wheel 33 is 0.3R, and 42 overall length of guide vane is 0.8R, and guide vane outer end first segment n length is 0.3R, inner end second
Section m is 0.4R.
Further, the impeller inducer 33 further includes long guide vane 43, and the tail portion of the long guide vane 43 is fixed
On wheel disc 41, the head of long guide vane 43 is just tangent with spiral case cut water.
As depicted in figs. 1 and 2, each conveyance conduit 6 is divided into two parts, and two parts are defeated by 90 ° of union elbow connections
The right end of pipeline 6 is sent to connect by the abrasive grain outlet of 90 ° of union elbows and pumping abrasive grain pump 110.
Output channel 2 is DN80 output channel, and conveyance conduit 6 is DN50 conveyance conduit, and input channel 111 is DN65 input
Pipeline, the polishing unit 3, support frame 7, bevel gear box 9, pumping abrasive grain pump 110, motor 21 are all mounted on workbench 1, DN80
Output channel connection polishing unit 3 and abrasive grain pond 114；DN50 conveyance conduit connection polishing unit 3 and pumping abrasive grain pump 110, it is described
7 upper end of support frame plays a supporting role to conveyance conduit 4, the belt drive unit 8 be connected to motor 21 and bevel gear box 9 it
Between, DN65 input channel 111, which is connected to, takes out abrasive grain pump 110 and abrasive grain pond 114, shaft coupling 112 connect bevel gear box output shaft and
Agitating shaft 115, shaft coupling 23 connect motor shaft 22 and take out the pump shaft 24 of abrasive grain pump, drive and take out 110 operating of abrasive grain pump.
As shown in figure 3, in the polishing unit 3 include DN80 convex flange 31, be polished spiral case 32, impeller inducer 33,
Nut 34, DN50 convex flange 35, bolt 36, fixing axle 37, tapered roller bearing 38, bearing holder (housing, cover) 39, bearing (ball) cover 310, quilt
The polishing spiral case pump housing 32 is connect by convex flange 31 with output channel 2, is connect by convex flange 35 with conveyance conduit 4, interior
Impeller inducer 33 is installed in portion, and impeller inducer 33 is fixed on axis by the fixing axle 37 by nut 34, and shaft shoulder two sides pass through circle
Taper roller bearing 38,39 sets of the bearing holder (housing, cover) play a supportive role outside tapered roller bearing, and the bearing (ball) cover 310 is together with institute
It states bearing holder (housing, cover) 39 to be fixed on and be polished on spiral case 32 by bolt 36, seal, and then together with fixing axle 37, bearing holder (housing, cover) 39
Play the fixed function to impeller inducer.
The output end for taking out abrasive grain pump 110 is connected to by conveyance conduit 4 with spiral case 32 is polished, and the input of abrasive grain pump 110 is taken out
End is connected to by input channel 111 with abrasive grain pond 114.
The belt drive unit 8 is connected between motor output end and the bevel gear box input terminal, the bevel gear
Case input shaft is lateral shaft, and output shaft is vertical axis, not only realizes the purpose of deceleration, while realizing the steering of power.
Agitating shaft 115 protrudes into abrasive grain pond 114 and is stirred, to realize the regular supply of abrasive grain.
The fixing axle 37 passes through two impeller inducers, and two impeller inducers 33, which are fixed on, to be polished in spiral case 32；Two
Spiral case is polished to be symmetrically installed back-to-back；Abrasive Flow approach axis in two impeller inducers 33 flows on the contrary, abrasive grain can be offset
Enter generated axial force in impeller inducer.
As shown in figure 4, impeller inducer 33 includes guide vane 42, wheel disc 41, long guide vane 43, the abrasive Flow is from snail
Shell top flows into, and first passes through the shunting of A runner, shunts by B runner, initial big flow is made to be evenly distributed in each runner
In, the head of the long guide vane 43 is just tangent with spiral case cut water.Preferably control abrasive Flow enters in one direction leads
Stream wheel.
Working principle of the utility model is:
It installs, drives pumping abrasive grain pump 110 to be operated by motor 21, extracted out abrasive grain by input channel 111,
Since impeller inducer 33 remains in operation after being full of the entire pump housing, and then abrasive grain is flowed into certain rate by conveyance conduit 6
Polish unit 3；Into polishing unit 3 due to the drainage of impeller inducer 33, abrasive grain is flowed to different direction, to being contacted
Wall surface is polished；Unit 3 is polished when abrasive grain and chip will be flowed out full of entire impeller inducer 33, is flowed by output channel 2
Enter abrasive grain pond.Polishing process simultaneously, motor 21 transfers power to bevel gear box 9 by belt drive unit 8, then by stirring
Device 113 slows down, and driving agitating shaft 115 operates, and is stirred to the abrasive grain in abrasive grain pond 114, to guarantee regular supply.
Claims (7)
1. a kind of efficient centrifugal pump spiral case burnishing device, it is characterised in that: including workbench, abrasive grain pond, pumping grain unit, be used for
The agitating device and two polishing units of abrasive grain in abrasive grain pond are stirred, the abrasive grain pond is mounted on the lower section of workbench, the pumping
Grain unit includes taking out abrasive grain pump and motor, and the motor is ground positioned at the rear and motor shaft for taking out abrasive grain pump by shaft coupling and pumping
The pump shaft connection of grain pump, the abrasive particle inlet for taking out abrasive grain pump are connect by input channel with abrasive grain pond；
Two polishing units are symmetrically arranged, and each polishing unit includes impeller inducer, bearing holder (housing, cover), bearing (ball) cover and thrown
Light spiral case is polished spiral case and is installed on the workbench, and is polished at the snail shape portion cavity of spiral case and is equipped with impeller inducer, fixing axle
The impeller inducer of left and right lateral arrangement, two polishing units is separately mounted on the left and right ends of fixing axle, the left and right of fixing axle
The tapered roller bearing that both ends pass through corresponding side polishing unit respectively is rotatably mounted on corresponding bearing holder (housing, cover), corresponding bearing
End cap, which is located at the outside of corresponding bearing holder (housing, cover) and is fixed on by bolt together with bearing holder (housing, cover), to be polished on spiral case；
Take out abrasive grain pump abrasive grain outlet by same conveyance conduit respectively with two polish unit the abrasive grain for being polished spiral case into
The abrasive grain outlet for being polished spiral case of mouth connection, each polishing unit is connect by an output channel with abrasive grain pond respectively；
The bottom for being polished the snail shape portion of spiral case is equipped with abrasive grain and removes mouth, and the abrasive grain is removed mouth and is connected to snail shape portion cavity, institute
Abrasive grain is stated to remove at mouth equipped with blocking.
2. a kind of efficient centrifugal pump spiral case burnishing device as described in claim 1, it is characterised in that: the impeller inducer includes
Wheel disc and multiple guide vanes, multiple guide vanes are distributed according to the method that adjacent guide vanes angle theta is incremented by, water conservancy diversion leaf
The incremental range of piece angle theta is between 1.1~1.2 times.
3. a kind of efficient centrifugal pump spiral case burnishing device as claimed in claim 1 or 2, it is characterised in that: the conveyance conduit
Left end connect with threeway by 90 ° of union elbows, the left and right ends mouthful of threeway pass through respectively 90 ° of union elbows with connect
Pipe connection, each connecting tube pass through a convex flange respectively and connect with the abrasive particle inlet for being polished spiral case, each output channel
It is connected also by a convex flange with the abrasive grain outlet for being polished spiral case.
4. a kind of efficient centrifugal pump spiral case burnishing device as claimed in claim 1 or 2, it is characterised in that: the agitating device
Agitating shaft is mounted on including agitating shaft, stirring impeller inducer, bevel gear box and belt drive unit, the stirring impeller inducer
Lower end and it is located in abrasive grain pond, the upper end of the agitating shaft passes through the output axis connection of shaft coupling and bevel gear box, the belt
Transmission device includes big belt pulley, small belt pulley and belt, and the small belt pulley is mounted on the motor shaft of motor, the great Pi
Belt wheel is mounted on the input shaft of bevel gear box, and the small belt pulley is connect by belt with big belt pulley.
5. a kind of efficient centrifugal pump spiral case burnishing device as claimed in claim 1 or 2, it is characterised in that: the burnishing device
It further include the support frame for being used to support conveyance conduit, support frame as described above includes column and the support tube that passes through for conveyance conduit,
The lower end of the column is fixed on the table, and the upper end of the column is fixed with support tube.
6. a kind of efficient centrifugal pump spiral case burnishing device as claimed in claim 2, it is characterised in that: each guide vane is in
V-type, bent angle are 120 °.
7. a kind of efficient centrifugal pump spiral case burnishing device as claimed in claim 6, it is characterised in that: the impeller inducer also wraps
Include long guide vane, the tail portion of the long guide vane is fixed on wheel disc, the head of long guide vane just with spiral case cut water
It is tangent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239830.6U CN209717350U (en) | 2018-12-28 | 2018-12-28 | A kind of efficient centrifugal pump spiral case burnishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239830.6U CN209717350U (en) | 2018-12-28 | 2018-12-28 | A kind of efficient centrifugal pump spiral case burnishing device |
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| Publication Number | Publication Date |
|---|---|
| CN209717350U true CN209717350U (en) | 2019-12-03 |
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ID=68678402
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| CN201822239830.6U Active CN209717350U (en) | 2018-12-28 | 2018-12-28 | A kind of efficient centrifugal pump spiral case burnishing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109590891A (en) * | 2018-12-28 | 2019-04-09 | 浙江工业大学 | A kind of efficient centrifugal pump spiral case burnishing device |
-
2018
- 2018-12-28 CN CN201822239830.6U patent/CN209717350U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109590891A (en) * | 2018-12-28 | 2019-04-09 | 浙江工业大学 | A kind of efficient centrifugal pump spiral case burnishing device |
| CN109590891B (en) * | 2018-12-28 | 2023-09-26 | 浙江工业大学 | Efficient centrifugal pump volute polishing device |
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