CN106286290B - The shaft sealer of impeller pump - Google Patents
The shaft sealer of impeller pump Download PDFInfo
- Publication number
- CN106286290B CN106286290B CN201610916537.1A CN201610916537A CN106286290B CN 106286290 B CN106286290 B CN 106286290B CN 201610916537 A CN201610916537 A CN 201610916537A CN 106286290 B CN106286290 B CN 106286290B
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- Prior art keywords
- seat
- ring
- rotating seat
- rotating
- pump
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0023—Axial sealings for working fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0088—Lubrication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0096—Heating; Cooling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of shaft sealer of impeller pump is provided, including machine envelope seat (3) and stationary ring (4), rotating seat (5) and the rotating ring (6) being driven by it, the first O-ring (8) is set at the gap between stationary ring (4) and machine envelope seat (3)；The cylinder of rotating seat (5) stretches into machine envelope seat (3) inner cavity, the rotating seat inner cavity (9) of closing is formed between the cylinder of rotating seat (5) and axis (1), second O-ring (11) is set at the gap between rotating ring (6) and rotating seat (5), in rotating seat inner cavity (9), compression spring (12) is set between the connecting pin of rotating seat (5) and rotating ring (6), and rotating ring (6) is mutually close to stationary ring (4)；3rd O-ring (30) is set between the connecting pin of rotating seat (5) and axis (1)；Rotating seat (5) is through at least one trundle (13) connection impeller (2), wherein one end close-fitting connection of trundle (13), the floating type insertion of the other end；The present invention can effectively promote the sealing performance and service life of impeller pump, be especially suitable for the sealing of sanitation-grade impeller pump.
Description
Technical field
The present invention relates to a kind of shaft sealer of impeller pump, especially a kind of mechanical sealing of sanitation-grade impeller pump
Device.
Background technology
Impeller pump is also known as colloid pump, impeller pump, general-purpose delivery pump etc., since its impeller is shaped like cam, also referred to as lobe pump,
Impeller pump belongs to positive displacement pump；Generally birotor.Impeller pump is to convey unit by means of multiple fixed volumes in working chamber
It is periodically converted and achievees the purpose that trandfer fluid material.A pair of of synchromesh gear is usually driven by motor, is driven major-minor axis, double turns
Son synchronizes negative direction rotation, the volume of pump is made to change respectively under the drive of major-minor axis, higher true so as to form
Reciprocal of duty cycle and discharge pressure；Entrance is low-pressure area, and exit is higher-pressure region.Impeller pump is mainly used for sanitation-grade material and corrosion
Property, the conveying of high-viscosity material.Conveyed material can be divided into sanitation-grade material and non-hygiene grade material, sanitation-grade by hygienic requirements
Material includes：1. food beverages：Dairy products, latex, chocolate, syrup, cheese, brewer's wort, beer, carbonated drink etc.；2. fruit
Concentrate：Pudding, jam, jelly, catsup etc.；3. paste class product：Fat and grease etc.；4. cosmetics：Face cream, washing
Agent, hair style gel, spice oil etc.；5. drug class：Medicinal extract, emulsion, pill slurry etc.；Non-hygiene grade material refers to except sanitation-grade
Fluid foods beyond material, predominantly industrial products and the semi-finished product fluid foods such as chemical industry papermaking, including dyestuff, grease, molten
Agent, resin and polymer, paper pulp etc..All spare and accessory parts contacted with conveying material in impeller pump, generally use and meet health
The stainless steel material of standard makes, and sealing element uses nontoxic rubber；Reliable rust-preventing characteristic and non-toxic seal ensure safety
Health.
Material is subjected to elevated pressures in pump output terminal during due to rotor pump work, and material is easy to let out from the between centers of rotation
Leakage.In order to avoid fluid foods leak, the sealing of impeller pump is extremely important, the development of adjoint impeller pump technology, impeller pump
Sealing is always one of its key technology；The sealing performance of impeller pump and the service life of sealing are promoted, is this field
The target of technical staff's long-sought.The sealing of impeller pump at present mainly includes mechanical sealing and material filling type sealing,
Based on mechanical sealing.The mechanical sealing of impeller pump be using spring force with axis transhipment rotating ring with it is opposing stationary
Stationary ring end face be mutually close to the revolute pair to form sealing, use seal with O ring at the gap on periphery.Due to being moved during rotor pump work
Ring and stationary ring friction, the machine sealing including rotating ring and stationary ring and O-ring are all subjected to fever abrasion, cause its hydraulic performance decline, directly
To occurring just needing maintenance downtime when fluid foods substantially leak.In prior art, also there is the fluid conveyed using it
Material carrys out the scheme of lubrication machine sealing, and machine sealing is being axially fixed, such as Chinese patent literature
CN201401323Y is the utility model open file of present patent application people application, due to space where disengaging machine sealing
Fluid foods have elevated pressures, there is larger extruding force to machine sealing, and once excessive accumulation is not circulated, and will continue to rise
Temperature reduces fluid foods to the cooling effect of machine sealing, influences the sealing performance of impeller pump and the service life of sealing.
In fact, the pressure for the fluid foods that space where disengaging machine sealing is in contact with it is variation, inventor
After years of research and found that its machine sealing of the prior art is being axially fixed design, the exactly change to fluid material pressure
Suitable counter-measure is not taken in change, just causes the fluid foods compression shock of variation sealing performance and sealing are made
Large effect is caused with the service life；So, use of the fluid foods compression shock to sealing performance and sealing how is overcome
Larger impact caused by service lifeIn addition, how the mechanical shaft sealer of impeller pump for sanitation-grade material provides hygienic guarantor
Barrier
The present invention is precisely in order to solve above-mentioned technical problem.The present invention can be regarded as Chinese patent literature
The improvement of scheme disclosed in CN201401323Y.
The content of the invention
The technical problems to be solved by the invention are that a kind of sealing dress of impeller pump is provided for the above-mentioned state of the art
It puts.
Technical solution is used by the present invention solves above-mentioned technical problem：
A kind of shaft sealer of impeller pump, the axis (1) of the impeller pump are fixedly connected with the impeller (2) as rotor,
It is characterized in that, the shaft sealer includes machine envelope seat (3) and stationary ring (4), rotating seat (5) and the rotating ring (6) being driven by it,
Cylindrical and be sleeved on outside axis (1), machine envelope seat (3) is sleeved on rotating seat (5) outside and is fixedly connected with the pump housing (7), machine
It seals on the outside of the pump of seat (3) and is located at the inner cavity of machine envelope seat (3) at blind end for the smaller blind end of internal diameter, stationary ring (4), directly
It is sleeved on outside axis (1), and is connected with machine envelope seat (3), the first O-ring is set at the gap between stationary ring (4) and machine envelope seat (3)
(8)；It is the smaller connecting pin of internal diameter on the inside of the pump of rotating seat (5), the connecting pin of rotating seat (5) is directly sleeved on outside axis (1),
The cylinder of rotating seat (5) stretches into machine envelope seat (3) inner cavity, and cavity (28), rotating seat are formed between rotating seat (5) and machine envelope seat (3)
(5) the rotating seat inner cavity (9) of closing is formed between cylinder and axis (1), the rotating ring (6) is located on the outside of the pump of rotating seat (5)
And be directly sleeved on outside axis (1), and be connected with rotating seat (5), setting the at the gap between rotating ring (6) and rotating seat (5)
Two O-rings (11) in rotating seat inner cavity (9), set compression spring (12) between the connecting pin of rotating seat (5) and rotating ring (6),
Compression spring (12) is also sleeved on outside axis (1), and rotating ring (6) is mutually close to the contact face (24) of stationary ring (4)；The rotating ring
3rd O-ring (30) is set between the seat connecting pin of (5) and axis (1)；The rotating seat (5) connects through at least one trundle (13)
Connect impeller (2), wherein one end close-fitting connection of the trundle (13), the floating type insertion of the other end.
The compression spring (12) is the single big spring for being directly sleeved on 1 outside of axis, which is traditional
Helical spring or waveform spring；Alternatively, the compression spring (12) is along the circumferentially uniformly distributed multiple little springs in 1 outside of axis.
One end close-fitting of the trundle (13) opens up respective numbers on impeller (2) on the inside of the pump of the rotating seat (5)
The first notch (15) supply trundle (13) floating type insertion.
2 pin holes (16), wherein one end difference of 2 trundles (13) are symmetrically opened up on the outside of pump on the impeller (2)
Close-fitting is inserted into 2 pin holes (16) on the impeller (2), and 2 the first notches are also symmetrically opened up on the inside of the pump of the rotating seat (5)
(15) trundle (13) floating type insertion is supplied.
The connecting pin inner wall of the rotating seat (5) opens up groove (33), and the 3rd O-ring (30) is embedded in the groove (33)
In.
The cylinder of the rotating seat (5) opens up connecting hole (31), and the connecting hole (31) is at least 2, along the rotating ring
The cylinder circumference uniform distribution of seat (5), each connecting hole (31) are inserted into pin (32) in a manner of close-fitting；It is opened on the inside of the pump of the rotating ring (6)
If corresponding second notch (21), it is inserted into for pin (32) by pine in a manner of.
The connecting hole (31) is a pair of cylinder circumference along rotating seat (5) symmetrical leading to including internal thread segment
Hole, pin (32) include one section of external thread section (34) to match with the internal thread segment of the connecting hole (31) of rotating seat (5).
Machine envelope seat (3) pumps outside close to it and opens up pin hole (16), and the pin hole (16) is at least 2, along described
The cylinder circumference uniform distribution of machine envelope seat (3), each pin hole (16) are inserted into fixed pin (19) in a manner of close-fitting；Outside the pump of the stationary ring (4)
Side opens up corresponding second notch (21), is inserted into for fixed pin (19) by pine in a manner of.
The blind end of machine envelope seat (3) also sets up outside framework oil seal (20), and the inner ring of the outside framework oil seal (20) is close to described
The axis (1) of impeller pump, and it is passed through lubricating oil or cooling water in the region that it is sealed.
It is a kind of for conveying the impeller pump of sanitation-grade high viscosity fluid material, including the pump housing (7), 2 as interactive rotor
A impeller (2) is located in the pump housing (7), and the respective corresponding impeller (2) of parallel two piece axis (1) of synchronized case output is fixed
Connection, which is characterized in that every axis (1) further includes shaft sealer as described above.
Impeller pump of the present invention is cooled down and lubricated to machine sealing using material, into machine sealing chamber material with impeller pump
Height pressure area does not stop to convert, and material is ceaselessly passed in and out in machine sealing chamber, and good cooling and lubrication are played to above-mentioned machine sealing
Effect, so as to be conducive to extend the service life of above-mentioned machine sealing.Leakproofness is also synchronous therewith when material pressure rises rises, can
Ensure sealing when material pressure rises.When material pressure declines, above-mentioned machine sealing automatically resets again, can thus reach
Dynamic equilibrium, can be efficiently against larger caused by service life of the fluid foods compression shock sealing performance and sealing
It influences.Also can be effectively prevented from material excessively accumulation do not circulate and caused by it is persistently overheating, influence the sealing performance of impeller pump
The phenomenon that with the service life of sealing.The present invention can effectively promote the sealing performance of impeller pump, and significantly promoted and turned
The service life of sub- shaft seal.Further, since rotating seat inner cavity is by axis, rotating seat, rotating ring, the second O-ring, pin and
The enclosure space that three O-rings are surrounded, material will not enter rotating seat inner cavity, and the compression spring positioned at rotating seat inner cavity will not be with
Material contacts；The machine sealing chamber that material can enter is exactly to form cavity between machine envelope seat and rotating seat.In this way, one carrys out compression spring and does not have
There is material resistance, will not be clung by material and influence its elasticity so that the sealing effect of impeller pump is more preferable；Two carry out material not
It can be detained at spring dead angle, the hygiene degree of material is promoted.Present invention is particularly suitable for use in conveying sanitation-grade objects
The sealing of the impeller pump of material.
Description of the drawings
Fig. 1 is the shaft sealer cross-sectional view of one impeller pump of the embodiment of the present invention；
Fig. 2, Fig. 3 are machine envelope seat stereoscopic schematic diagram, show different azimuth；
Fig. 4, Fig. 5 are rotating seat stereoscopic schematic diagram, show different azimuth；
Fig. 6 is pin schematic diagram；
Fig. 7, Fig. 8 are interchangeable rotating ring or stationary ring stereoscopic schematic diagram, show different azimuth；
Fig. 9 is the shaft sealer entirety cross-sectional view of one impeller pump of the embodiment of the present invention；
Figure 10 is the shaft sealer cross-sectional view of two impeller pump of the embodiment of the present invention；
Figure 11 is the shaft sealer entirety cross-sectional view of two impeller pump of the embodiment of the present invention；
The two blade impeller schematic front view that Figure 12 is adapted to for the present invention；
The two blade impeller diagrammatic cross-section that Figure 13 is adapted to for the present invention.
Specific embodiment
Below with the specific embodiment that the present invention will be described in detail shown in Fig. 1 to Figure 13.In order to facilitate description, each machine is sealed
Part towards the one side in impeller pump be referred to as pump inside, towards impeller pump outside one side be referred to as pump outside.
Shaft sealer of the present invention is primarily adapted for use in for the impeller pump of conveying high-viscosity fluid material, usual this rotor
Pump includes the pump housing 7, and 2 impellers 2 as interactive rotor are located in the pump housing 7, and the parallel two piece axis 1 of synchronized case output is respective
Corresponding impeller 2 is fixedly connected；Impeller 2 is usually twayblade or three blades, also there is single blade, quaterfoil, five blades.
Shaft sealer of the present invention is particularly suitable for the impeller pump of conveying sanitation-grade high viscosity fluid material.
Embodiment one
As shown in Figure 1, a kind of shaft sealer of impeller pump, the axis 1 of impeller pump connects with being fixed as the impeller 2 of rotor
It connects, shaft sealer includes machine envelope seat 3 and stationary ring 4, rotating seat 5 and the rotating ring 6 being driven by it, cylindrical and be sleeved on axis
1 outside, machine envelope seat 3 are sleeved on outside rotating seat 5 and are fixedly connected with the pump housing 7, and cavity 28 is formed between machine envelope seat 3 and rotating seat 5,
It is the flange end of the connection pump housing 7 on the inside of the pump of machine envelope seat 3, multiple connecting holes 22 is opened up along flange end circumference, for solid with the pump housing 7
Fixed connection；It is the smaller blind end of internal diameter on the outside of the pump of machine envelope seat 3, it is at blind end and straight that stationary ring 4 is located at 3 inner cavity of machine envelope seat
Female connector is connected mounted in 1 outside of axis, and with machine envelope seat 3.It specifically can be used and following be fixedly connected with mode：It is outer close to its pump that machine seals seat 3
Pin hole 16 is opened up at side, and fixed pin 19 is inserted into a manner of close-fitting；The second notch 21 is opened up on the outside of the pump of stationary ring 4, such as Fig. 7, Fig. 8
It is shown, it is inserted into for fixed pin 19 by pine in a manner of.The first O-ring 8 is set at gap between stationary ring 4 and machine envelope seat 3.Machine seals seat
3 as shown in Figure 2 and Figure 3, and rotating seat 5 is as shown in Figure 4, Figure 5.
As shown in Figure 1, it is the smaller connecting pin of internal diameter on the inside of the pump of rotating seat 5, the connecting pin of rotating seat 5 is directly sleeved on
1 outside of axis, the cylinder of rotating seat 5 stretch into 3 inner cavity of machine envelope seat, cavity 28 are formed between rotating seat 5 and machine envelope seat 3, rotating seat 5
The rotating seat inner cavity 9 of closing is formed between cylinder and axis 1.Rotating ring 6 is located on the outside of the pump of rotating seat 5 and is directly sleeved on outside axis 1
Face sets the second O-ring 11 at the gap between rotating ring 6 and rotating seat 5；In rotating seat inner cavity 9, in the connecting pin of rotating seat 5
Compression spring 12 is set between rotating ring 6, which is also sleeved on 1 outside of axis, the end face 24 of rotating ring 6 and the end of stationary ring 4
Face 24 is mutually close to, and forms revolute pair.Rotating ring 6 is identical with stationary ring 4 in the present embodiment, can mutually change general, is arranged along axial symmetry.
Rotating seat 5 connects impeller 2, wherein one end close-fitting connection of trundle 13 through at least one trundle 13, and the other end floats
Dynamic formula is inserted into.For ease of manufacture, in the following manner can be used：One end close-fitting of trundle 13 is on impeller 2, in the pump of rotating seat 5
The first notch 15 that side opens up respective numbers supplies 13 floating type insertion of trundle.With use be arranged symmetrically 2 trundles 13 for
It is good：Symmetrically open up 2 pin holes 16 on the outside of pump on impeller 2, as shown in Figure 12, Figure 12,2 trundles 13 being arranged symmetrically its
2 pin holes 16 on middle one end difference close-fitting insertion impeller 2, the pump inside of rotating seat 5 also symmetrically open up 2 the first notches 15 and supply
13 floating type insertion of trundle, as shown in Figure 5.
The compression spring 12 of the present invention is the single spring for being directly sleeved on 1 outside of axis, and traditional helical spring can be used
Or waveform spring, it is desirable that 12 both ends of the surface of compression spring are smooth, make the outer end face 23 of rotating ring 6 and 4 inner face of stationary ring, 24 uniform force
Distribution；So to be preferred using the smooth waveform spring in end face；Such as using traditional helical spring, its both ends of the surface can be scabbled.
Alternatively, the compression spring 12 is along the circumferentially uniformly distributed multiple little springs in 1 outside of axis.
The connecting pin inner wall of rotating seat 5 opens up groove 33, as shown in figure 4, the 3rd O-ring 30 is embedded in the groove 33, such as
Shown in Fig. 1.
As shown in Figure 1, following manner can be used in rotating seat 5 and the drive connection of rotating ring 6：The cylinder of rotating seat 5 opens up company
Hole 31 is connect, connecting hole 31 is at least 2.In general, symmetrical through hole is opened up as connecting hole along the cylinder circumference of rotating seat 5
31, as shown in Figure 4, Figure 5；Certainly, can also be opened up along the cylinder circumference of rotating seat 53,4 through holes as connecting hole 31,
Connecting hole 31 is suitble to the cylinder circumference uniform distribution along rotating seat 5；Connecting hole 31 includes internal thread segment, and each connecting hole 31 is in a manner of close-fitting
It is inserted into pin 32；Corresponding second notch 21 is opened up on the inside of the pump of rotating ring 6, as shown in Figure 7, Figure 8, for pin 32 in a manner that pine is matched somebody with somebody
Insertion.Pin 32 includes one section of external thread section 34 to match with the internal thread segment of the connecting hole 31 of rotating seat 5, as shown in Figure 6；It twists
It can be again screwed into after the external thread section 34 of pin 32 curls up band before entering pin 32, make it tight with the connecting hole 31 of rotating seat 5
Match somebody with somebody.
Compression spring 12 is first packed into rotating seat 5 by 5 associated components of rotating seat when assembling, then rotating ring 6 is packed into rotating seat 5
Cylinder, while the pin 32 for curling up band is screwed into the connecting hole 31 of rotating seat 5, and respectively make pin 32 front end be inserted into it is dynamic
Second notch 21 of ring 6.Second O-ring 11 should be in advance on rotating ring 6.Due to pin 32 and rotating ring 6 the second notch 21 it
Between retain certain gap, in this way, rotating ring 6 can be made to automatically adjust its axial position in a manner of micro movement during rotor pump work
It puts.
The end face that machine envelope seat 3 is used to be connected with the pump housing 7 can set a circle boss 25 and a circle groove 26, and groove 26 is embedded in
4th O-ring 27.During machine envelope seat 3 associated components assembling, the stationary ring 4 equipped with the first O-ring 8 is first packed into machine envelope seat 3, makes stationary ring
The pin hole 16 on the second notch 21 alignment machine envelope seat 3 on 4, the pin hole 16 fixed pin 19 being inserted by force on machine envelope seat 3 are fixed
The second notch 21 on stationary ring 4 is inserted into the front end of pin 19 in a manner that pine is matched somebody with somebody；Due to retaining centainly between fixed pin 19 and stationary ring 4
Gap, in this way, stationary ring 4 during rotor pump work can be made to automatically adjust its axial position in a manner of micro movement.During overall assembling,
First by 5 associated components of rotating seat in the pump housing machine sealing chamber, after machine envelope seat 3 is fixedly connected with the pump housing 7, make the end face of rotating ring 6
24 are mutually close to the end face 24 of stationary ring 4, and the first O-ring 8 is pressurized under the effect of compression spring 12 and forms initial deformation.Fill impeller
When 2, make and the first notch 15 on the other end of the trundle of its close-fitting 13 insertion rotating seat 5.
The shaft sealer overall structure of the present embodiment impeller pump is as shown in Figure 9.
As shown in Fig. 1, Fig. 9, during rotor pump work, machine envelope seat 3, fixed pin 19, stationary ring 4, the first O-ring 8 are with 7 phase of the pump housing
To stationary, impeller 2, trundle 13, rotating seat 5, rotating ring 6, the second O-ring 11, compression spring 12 and spring cushion block 14 with
Axis rotates, and the end face 24 of rotating ring 6 is mutually close to the end face 24 of stationary ring 4, forms revolute pair.Rotating seat inner cavity 9 is by axis 1, moves
The enclosure space that ring seat 5, rotating ring 6, the second O-ring 11,32 and the 3rd O-ring 30 of pin are surrounded, material will not enter rotating ring
Seat inner cavity 9, the compression spring 12 positioned at rotating seat inner cavity 9 will not be contacted with material, in this way, one carrys out compression spring 12 without material
Resistance will not be clung by material and influence its elasticity so that the sealing effect of impeller pump is more preferable；Two carry out material will not be in bullet
It is detained at spring dead angle, the hygienic rank of material is promoted.
As shown in Fig. 1, Fig. 9, cavity 28 is communicated with the inner cavity of impeller pump, and the partial material of impeller pump inner cavity will be into
Enter cavity 28, to include rotating ring 6, stationary ring 4, the first O-ring 8, the second O-ring 11 machine sealing play cooling and lubricating action；
Also, since rotating seat 5, rotating ring 6, the second O-ring 11 are rotated with axis, into cavity 28 material with impeller pump height pressure area
Not stopping to convert, material is ceaselessly passed in and out in cavity 28, and good cooling and lubricating action are played to above-mentioned machine sealing, so as to
Be conducive to extend the service life of above-mentioned machine sealing.The pressure of material is identical with the elastic force direction of compression spring 12, all forces
Rotating ring 6 is compressed with stationary ring 4, while the second O-ring 11 and the first O-ring 8 is forced to be compacted.Since trundle 13 is floating type inserts
Enter the first notch 15 of rotating seat 5, when the material pressure into cavity 28 rises, compression spring 12 is forced further to be pressed
Contracting, rotating seat 5 pumps outside movement vertically, while the second O-ring 11 and the first O-ring 8 is forced further to be compacted, rotating ring 6
Pressing force between stationary ring 4 increases；Since the second notch 21 of fixed pin 19 and stationary ring 4 leaves certain gap, also force
Stationary ring 4 pumps the micro movement in outside vertically, and the first O-ring 8 is further compacted, i.e., material pressure rising when leakproofness also therewith
It is synchronous to rise, it is ensured that sealing when material pressure rises.When material pressure declines, above-mentioned machine sealing automatically resets again, obtains
With rest and reorganization, it can thus reach dynamic equilibrium, it can be close to sealing performance and axis efficiently against fluid foods compression shock
Larger impact caused by the service life of envelope.Also can be effectively prevented from material excessively accumulation do not circulate and caused by it is persistently overheating,
Influence impeller pump sealing performance and sealing service life the phenomenon that.The axis that the present invention can effectively promote impeller pump is close
Sealing property, and significantly promote the service life of rotor shaft seal.
Embodiment two
As shown in Figure 10, Figure 11, the present embodiment also sets up bone on the basis of embodiment one in the blind end of machine envelope seat 3
Frame oil sealing 20, it is other identical with embodiment.The inner ring of the outside framework oil seal 20 is close to the axis 1 of impeller pump, and is sealed at it
Region be passed through lubricating oil or cooling water, form the cooling and lubricating system increased.In this way, pump in without material when, can be effective
It prevents machine envelope dry grinding, further promotes the service life of rotor shaft seal.It in addition, can be in the 20 place section of outside framework oil seal of axis 1
Axle sleeve is added, is worn to avoid axis 1 by the lip of outside framework oil seal 20.
Claims (10)
1. a kind of shaft sealer of impeller pump, the axis (1) of the impeller pump is fixedly connected with the impeller (2) as rotor,
It is characterized in that, the shaft sealer includes machine envelope seat (3) and stationary ring (4), rotating seat (5) and the rotating ring (6) being driven by it,
Cylindrical and be sleeved on outside axis (1), machine envelope seat (3) is sleeved on rotating seat (5) outside and is fixedly connected with the pump housing (7), machine envelope
It is the smaller blind end of internal diameter on the outside of the pump of seat (3), stationary ring (4) is located at the inner cavity of machine envelope seat (3) at blind end, directly covers
It is connected outside axis (1), and with machine envelope seat (3), the first O-ring is set at the gap between stationary ring (4) and machine envelope seat (3)
(8)；It is the smaller connecting pin of internal diameter on the inside of the pump of rotating seat (5), the connecting pin of rotating seat (5) is directly sleeved on outside axis (1),
The cylinder of rotating seat (5) stretches into machine envelope seat (3) inner cavity, and cavity (28), rotating seat are formed between rotating seat (5) and machine envelope seat (3)
(5) the rotating seat inner cavity (9) of closing is formed between cylinder and axis (1), the rotating ring (6) is located on the outside of the pump of rotating seat (5)
And be directly sleeved on outside axis (1), and be connected with rotating seat (5), setting the at the gap between rotating ring (6) and rotating seat (5)
Two O-rings (11) in rotating seat inner cavity (9), set compression spring (12) between the connecting pin of rotating seat (5) and rotating ring (6),
Compression spring (12) is also sleeved on outside axis (1), and rotating ring (6) is mutually close to the contact face (24) of stationary ring (4)；The rotating ring
3rd O-ring (30) is set between the seat connecting pin of (5) and axis (1)；The rotating seat (5) connects through at least one trundle (13)
Connect impeller (2), wherein one end close-fitting connection of the trundle (13), the floating type insertion of the other end.
2. shaft sealer as described in claim 1, which is characterized in that the compression spring (12) is directly to be sleeved on axis
(1) the single big spring outside, the single big spring are traditional helical spring or waveform spring；Alternatively, the compression spring
(12) it is along multiple little springs circumferentially uniformly distributed outside axis (1).
3. shaft sealer as described in claim 1, which is characterized in that one end close-fitting of the trundle (13) is in impeller
(2) on, the first notch (15) that respective numbers are opened up on the inside of the pump of the rotating seat (5) supplies trundle (13) floating type insertion.
4. shaft sealer as claimed in claim 3, which is characterized in that symmetrically open up 2 on the outside of the pump on the impeller (2)
Pin hole (16), wherein one end difference close-fitting of 2 trundles (13) is inserted into 2 pin holes (16) on the impeller (2), described dynamic
Also 2 the first notches (15) are symmetrically opened up on the inside of the pump of ring seat (5) for trundle (13) floating type insertion.
5. shaft sealer as described in claim 1, which is characterized in that the connecting pin inner wall of the rotating seat (5) opens up recessed
Slot (33), the 3rd O-ring (30) are embedded in the groove (33).
6. shaft sealer as described in claim 1, which is characterized in that the cylinder of the rotating seat (5) opens up connecting hole
(31), the connecting hole (31) is at least 2, and along the cylinder circumference uniform distribution of the rotating seat (5), each connecting hole (31) is with close-fitting
Mode is inserted into pin (32)；Corresponding second notch (21) is opened up on the inside of the pump of the rotating ring (6), is formulated for pin (32) with pine
Formula is inserted into.
7. shaft sealer as claimed in claim 6, which is characterized in that the connecting hole (31) is to be a pair of along rotating seat (5)
The symmetrical through hole for including internal thread segment of cylinder circumference, pin (32) includes one section of connecting hole with rotating seat (5)
(31) external thread section (34) that internal thread segment matches.
8. shaft sealer as described in claim 1, which is characterized in that the machine envelope seat (3) pumps outside close to it and opens up
Pin hole (16), the pin hole (16) are at least 2, and along the cylinder circumference uniform distribution of machine envelope seat (3), each pin hole (16) is with close-fitting
Mode is inserted into fixed pin (19)；Corresponding second notch (21) is opened up on the outside of the pump of the stationary ring (4), for fixed pin (19) with pine
It is inserted into mode.
9. shaft sealer as described in claim 1, which is characterized in that the blind end of the machine envelope seat (3) also sets up skeleton
Oil sealing (20), the inner ring of the outside framework oil seal (20) is close to the axis (1) of the impeller pump, and lubrication is passed through in the region that it is sealed
Oil or cooling water.
10. a kind of for conveying the impeller pump of sanitation-grade high viscosity fluid material, including the pump housing (7), 2 as interactive rotor
Impeller (2) is located in the pump housing (7), and the respective corresponding impeller (2) of parallel two piece axis (1) of synchronized case output is fixed to be connected
It connects, which is characterized in that every axis (1) further includes shaft sealer as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610916537.1A CN106286290B (en) | 2016-10-21 | 2016-10-21 | The shaft sealer of impeller pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610916537.1A CN106286290B (en) | 2016-10-21 | 2016-10-21 | The shaft sealer of impeller pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106286290A CN106286290A (en) | 2017-01-04 |
| CN106286290B true CN106286290B (en) | 2018-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610916537.1A Active CN106286290B (en) | 2016-10-21 | 2016-10-21 | The shaft sealer of impeller pump |
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| Country | Link |
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| CN (1) | CN106286290B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143495B (en) * | 2017-06-27 | 2020-06-16 | 浙江力高泵业科技有限公司 | Mechanical sealing structure of high-pressure rotor pump |
| CN115013306B (en) * | 2022-07-12 | 2024-06-07 | 宁波邦威泵业有限公司 | Shaft sealing device of rotor pump |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2202005B (en) * | 1987-03-12 | 1990-11-07 | Ssp Pumps | Pump |
| JP3760126B2 (en) * | 2001-10-25 | 2006-03-29 | 大同メタル工業株式会社 | Rotary pump |
| CN201401323Y (en) * | 2009-04-29 | 2010-02-10 | 谭在良 | Pump body machine seal of birotor rotary displacement pump |
| CN104500391A (en) * | 2014-12-18 | 2015-04-08 | 浙江威隆机械科技有限公司 | Double-end-face integrated packaging washing mechanical seal of rotor pump |
| CN204984868U (en) * | 2015-07-28 | 2016-01-20 | 芜湖环球汽车配件有限公司 | Novel stainless steel impeller pump |
| CN105201899B (en) * | 2015-10-23 | 2018-05-15 | 宁波方力密封件有限公司 | Mechanical seal for boiler feed pump |
| CN206234109U (en) * | 2016-10-21 | 2017-06-09 | 宁波邦威泵业有限公司 | Impeller pump and its shaft sealer |
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2016
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| Publication number | Publication date |
|---|---|
| CN106286290A (en) | 2017-01-04 |
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