CN106286291B - Rotor pump shaft sealing device - Google Patents
Rotor pump shaft sealing device Download PDFInfo
- Publication number
- CN106286291B CN106286291B CN201610917398.4A CN201610917398A CN106286291B CN 106286291 B CN106286291 B CN 106286291B CN 201610917398 A CN201610917398 A CN 201610917398A CN 106286291 B CN106286291 B CN 106286291B
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- ring
- seat
- pump
- rotating
- rotating seat
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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
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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, cavity (28) is formed between rotating seat (5) and machine envelope seat (3), multiple through holes (10) are opened up along the cylinder periphery of rotating seat (5), it is set on the inside of the pump of rotating ring (6) for second O-ring (11) in gap between moving sealing ring (6) and axis (1), in rotating seat inner cavity (9), compression spring (12) is set between the connecting pin of rotating seat (5) and rotating ring (6), rotating ring (6) is mutually close to stationary ring (4), 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 non-hygiene grade impeller pump.
Description
Technical field
The present invention relates to a kind of shaft sealer of impeller pump, especially a kind of mechanical axis of non-hygiene grade impeller pump is close
Seal apparatus.
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：Food beverages, fruit concentrate, cosmetics, drug class etc.；Non-hygiene grade material refers to except sanitation-grade material
Fluid foods in addition, predominantly industrial products and the semi-finished product fluid foods such as chemical industry papermaking, including dyestuff, fat, solvent, tree
Fat and polymer, paper pulp etc..All spare and accessory parts contacted with conveying material in impeller pump, generally use and meet sanitary standard
Stainless steel material make, sealing element use nontoxic rubber；Reliable rust-preventing characteristic and non-toxic seal ensure safety and sanitation.
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.Thing
In reality, the pressure for the fluid foods that space where disengaging machine sealing is in contact with it is variation, and inventor through studying for many years
It was found that its machine sealing of the prior art is being axially fixed design, exactly the variation of fluid material pressure is not taken
Suitable counter-measure just causes the fluid foods compression shock of variation to cause the service life of sealing performance and sealing
Large effect；So, caused by how overcoming service life of the fluid foods compression shock sealing performance and sealing
Larger impact
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) rotating seat inner cavity (9) are formed between cylinder and axis (1), multiple through holes (10) are opened up along the cylinder periphery of rotating seat (5),
The rotating ring (6) is located on the outside of the pump of rotating seat (5) and is directly sleeved on outside axis (1), sets and is used on the inside of the pump of rotating ring (6)
Second O-ring (11) in gap between moving sealing ring (6) and axis (1), 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 outside axis (1), the outer end face of rotating ring (6)
(23) mutually it to be close to stationary ring (4) inner face (24), the rotating seat (5) connects impeller (2) through at least one trundle (13),
Wherein one end close-fitting connection of the trundle (13), the floating type insertion of the other end.
Similary cylindrical spring cushion block (14) is added on the inside of the pump of the rotating ring (6), the compression spring (12) sets
It puts between the connecting pin of rotating seat (5) and spring cushion block (14), the spring cushion block (14) is also directly sleeved on axis (1) outside
Face, second O-ring (11) are arranged at the gap between spring cushion block (14) and the rotating ring (6).
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.
2 convex ribs (17), the rotating ring are at least set along its inner wall circumference on the outside of the pump of the cylinder of the rotating seat (5)
(6) corresponding recess (18) is set along its outer wall circumference.
4 convex ribs (17) are set on the outside of the pump of the cylinder of the rotating seat (5) along its inner wall circumference uniform distribution, the rotating ring
(6) 4 corresponding recess (18) are also each set with spring cushion block (14) along its outer wall circumference uniform distribution.
The through hole (10) opened up along the cylinder periphery of the rotating seat is 4, and along the cylinder periphery of the rotating seat (5)
It is uniformly distributed.
The cylinder inboard wall of the rotating seat (5) sets to engage the bulge loop (29) of spring cushion block (14).
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 the 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.
A kind of impeller pump for being used to convey non-hygiene grade high viscosity fluid material, including the pump housing (7), as interactive rotor
2 impellers (2) are located in the pump housing (7), and the respective corresponding impeller (2) of parallel two piece axis (1) of synchronized case output is solid
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, is rested and reorganized；So
Dynamic equilibrium can be reached, it can be efficiently against fluid foods compression shock to the service life of sealing performance and sealing
Caused by larger impact；Also can be effectively prevented from material excessively accumulation do not circulate and caused by it is persistently overheating, influence impeller pump
The phenomenon that sealing performance and the service life of sealing.The present invention can effectively promote the sealing performance of impeller pump, and big
Amplitude promotes the service life of rotor shaft seal.Present invention is particularly suitable for use in the axis for the impeller pump for conveying non-hygiene grade material
Sealing.
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, Fig. 7 are rotating ring stereoscopic schematic diagram, show different azimuth；
Fig. 8, Fig. 9 are stationary ring stereoscopic schematic diagram, show different azimuth；
Figure 10, Figure 11 are spring cushion block stereoscopic schematic diagram, show different azimuth；
Figure 12 is the shaft sealer part section structural representation of two impeller pump of the embodiment of the present invention；
Figure 13 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 14 is adapted to for the present invention；
The two blade impeller diagrammatic cross-section that Figure 15 is adapted to for the present invention；
By the shaft sealer cross-sectional view of material pressure state when Figure 16 is rotor pump work of 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 15.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 conveying the impeller pump of non-hygiene 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, and following connection mode specifically can be used：Machine seals seat 3 and pumps outside close to it
Pin hole 16 is opened up, pin hole 16 is at least 2, along the cylinder circumference uniform distribution of machine envelope seat 3；Usually, it is symmetrical along the cylinder of machine envelope seat 3
It is sufficient to open up 2, certainly, opening up 3,4 along the cylinder circumference uniform distribution of machine envelope seat 3 can also；Each pin hole 16 is with close-fitting
Mode is inserted into fixed pin 19；Can also threaded hole replace pin hole 16, curl up band screw replace fixed pin 19；Stationary ring 4
Pump on the outside of open up corresponding second notch 21, as shown in Figure 8, Figure 9, be inserted into for each fixed pin 19 by pine in a manner of.Stationary ring 4 with
The first O-ring 8 is set at gap between machine envelope seat 3.As shown in Figure 2 and Figure 3, rotating seat 5 is as shown in Figure 4, Figure 5 for machine envelope seat 3.
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
Rotating seat inner cavity 9 is formed between cylinder and axis 1, multiple through holes 10 are opened up along the cylinder periphery of rotating seat 5, is passed in and out for fluid foods
Rotating seat inner cavity 9；Through hole 10 is uniformly preferred with opening up 4 along the cylinder periphery of rotating seat 5.Rotating ring 6 is located at rotating seat 5
Pump outside is simultaneously directly sleeved on 1 outside of axis, is set on the inside of the pump of rotating ring 6 for the 2nd O in gap between moving sealing ring 6 and axis 1
Shape circle 11 in rotating seat inner cavity 9, sets compression spring 12, the compression spring 12 between the connecting pin of rotating seat 5 and rotating ring 6
Also 1 outside of axis is sleeved on, the outer end face 23 of rotating ring 6 is mutually close to 4 inner face 24 of stationary ring, forms revolute pair.
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：2 pin holes 16 symmetrically are opened up on the outside of pump on impeller 2, as shown in Figure 14, Figure 15；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.
Similary cylindrical spring cushion block 14 can be added on the inside of the pump of rotating ring 6, compression spring 12 is arranged on rotating seat 5
Between connecting pin and spring cushion block 14, spring cushion block 14 is also directly sleeved on 1 outside of axis, and the second O-ring 11 is arranged on spring pad
At gap between block 14 and rotating ring 6.The compression spring 12 of the present invention is the single spring for being directly sleeved on 1 outside of axis, can be adopted
With traditional helical spring 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 stationary ring 4
24 uniform force of inner face is distributed；So to be preferred using the smooth waveform spring in end face；It, can such as using traditional helical spring
Its both ends of the surface is scabbled.If directly pushing rotating ring 6 with compression spring 12, the stress balance of rotating ring 6 is poor；Add spring pad
Block 14 can effectively improve the stress balance of rotating ring 6, also avoid pressing spring 12 and directly withstand on rotating ring 6 to cause rotating ring 6
Abrasion, can also shorten the length of compression spring 12.
Following manner can be used in rotating seat 5 and the drive connection of rotating ring 6：Along its inner wall on the outside of the pump of the cylinder of rotating seat 5
Circumference at least sets 2 convex ribs 17, and rotating ring 6 sets corresponding recess 18 along its outer wall circumference.Specifically to be in the following ways
It is good：4 convex ribs 17 are set along its inner wall circumference uniform distribution, as shown in Figure 5 on the outside of the pump of the cylinder of rotating seat 5；Rotating ring 6 and spring pad
Block 14 also each sets 4 corresponding recess 18 along it along its outer wall circumference uniform distribution, as shown in Fig. 6, Fig. 7 and Figure 10, Figure 11.
Compression spring 12 is first packed into rotating seat 5, then the recess 18 by spring cushion block 14 by 5 associated components of rotating seat when assembling
Spring cushion block 14 is pressed into rotating seat 5, and torsional spring cushion block 14 by the convex ribs 17 along rotating seat 5, and compression spring 12 is locked
In rotating seat 5, after rotating ring 6 is pressed into rotating seat 5 by convex ribs 17 of the recess 18 of rotating ring 6 along rotating seat 5, and rotating ring 6
Outer end face 23 is exposed at 5 outside of rotating seat.If not adding spring cushion block 14, directly by the recess 18 of rotating ring 6 along rotating ring
Rotating ring 6 is pressed into rotating seat 5 by the convex ribs 17 of seat 5.Second O-ring 11 should be in advance on rotating ring 6.
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, as shown in Fig. 2, recessed
Slot 26 is embedded in the 3rd 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 the 21 alignment machine of the second notch on stationary ring 4 seal the pin hole 16 on seat 3, fixed pin 19 is inserted by force on machine envelope seat 3
The second notch 21 on stationary ring 4 is inserted into pin hole 16, the front end of fixed pin 19 in a manner that pine is matched somebody with somebody；Due to fixed pin 19 and stationary ring 4 it
Between retain certain gap, in this way, stationary ring 4 during rotor pump work can be made to automatically adjust its position in a manner of micro movement.Always
When body assembles, 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 outer end face 23 of ring 6 is mutually close to 4 inner face 24 of stationary ring, and the first O-ring 8 is pressurized under the effect of compression spring 12 and is formed initially
Deformation.When filling impeller 2, make and the first notch 15 on the other end of the trundle of its close-fitting 13 insertion rotating seat 5.
As shown in Figure 1, during rotor pump work, machine envelope seat 3, fixed pin 19, stationary ring 4, the first O-ring 8 are static not with the pump housing 7
Dynamic, impeller 2, trundle 13, rotating seat 5, rotating ring 6, the second O-ring 11, compression spring 12 and spring cushion block 14 are rotated with axis, are moved
The outer end face 23 of ring 6 is mutually close to 4 inner face 24 of stationary ring, forms revolute pair.Due to cylinder of the rotating seat inner cavity 9 through rotating seat 5
Multiple through holes 10 in external week are communicated with cavity 28, and cavity 28 is communicated with the inner cavity of impeller pump, the portion of impeller pump inner cavity
Point material will enter cavity 28 and rotating seat inner cavity 9, to include stationary ring 4, the first O-ring 8, rotating ring 6, the second O-ring 11, by
The machine sealing of pressing spring 12 and spring cushion block 14 plays cooling and lubricating action；Also, due to rotating seat 5, rotating ring 6, the 2nd O shapes
Circle 11, compression spring 12 and spring cushion block 14 are rotated with axis, into cavity 28 especially into rotating seat inner cavity 9 material with turning
The height pressure area of son pump does not stop to convert, and material is ceaselessly passed in and out in cavity 28 and rotating seat inner cavity 9, and above-mentioned machine sealing is risen
To good cooling and lubricating action, so as to be conducive to extend the service life of above-mentioned machine sealing.Rotating ring 6 is same with compression spring 12
In material area, this model machine front cover is easier to seal；The pressure of material is identical with the elastic force direction of compression spring 12, be all force it is dynamic
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 insertion
First notch 15 of rotating seat 5 when rising into cavity 28 and the material pressure of rotating seat inner cavity 9, forces compression spring 12
Be further compressed, it is mobile that rotating seat 5 pumps outside vertically, while force the second O-ring 11 and the first O-ring 8 further by
It compresses, the pressing force between rotating ring 6 and stationary ring 4 increases；Due to the second notch 21 of fixed pin 19 and stationary ring 4 leave it is certain between
Gap also forces stationary ring 4 to pump the micro movement in outside vertically, and the first O-ring 8 is further compacted, as shown in figure 16；That is material pressure
Leakproofness is also synchronous therewith when power rises rises, it is ensured that sealing when material pressure rises.It is above-mentioned when material pressure declines
Machine sealing automatically resets again, is rested and reorganized, and can thus reach dynamic equilibrium, can be efficiently against fluid foods compression shock
The larger impact caused by the service life of sealing performance and sealing.Also material can be effectively prevented from, and excessively accumulation is not circulated
It is persistently overheating caused by and, influence impeller pump sealing performance and sealing service life the phenomenon that.The present invention can be effective
Promotion impeller pump sealing performance, and significantly promoted rotor shaft seal service life.
In addition, rotating seat 5 is caused to pump vertically when material pressure is excessive in order to prevent, outside is mobile excessively to cause rotating ring
First notch 15 of seat 5 departs from trundle 13, can engage the bulge loop of spring cushion block 14 in the setting of the cylinder inboard wall of rotating seat 5
29, as shown in figure 16；In this case, through hole 10 can be opened at the connecting pin of ring seat 5, and bulge loop 29 may be provided at through hole
On the outside of 10 pump, it is opened in avoid through hole 10 on bulge loop 29, certainly, even through hole 10 is opened on bulge loop 29；It thus can be with
Ensure that the first notch 15 of rotating seat 5 floats along trundle 13 without departing from trundle 13 always.
Embodiment two
As shown in Figure 12 and Figure 13, 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 (11)
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) rotating seat inner cavity (9) are formed between cylinder and axis (1), multiple through holes (10) are opened up along the cylinder periphery of rotating seat (5),
The rotating ring (6) is located on the outside of the pump of rotating seat (5) and is directly sleeved on outside axis (1), sets and is used on the inside of the pump of rotating ring (6)
Second O-ring (11) in gap between moving sealing ring (6) and axis (1), 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 outside axis (1), the outer end face of rotating ring (6)
(23) mutually it to be close to stationary ring (4) inner face (24), the rotating seat (5) connects impeller (2) through at least one trundle (13),
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 added on the inside of the pump of the rotating ring (6) similary in circle
The spring cushion block (14) of tubular, the compression spring (12) are arranged between the connecting pin of rotating seat (5) and spring cushion block (14),
The spring cushion block (14) is also directly sleeved on outside axis (1), and second O-ring (11) is arranged on spring cushion block (14) and institute
It states at the gap between rotating ring (6).
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 along it on the outside of the pump of the cylinder of the rotating seat (5)
Inner wall circumference at least sets 2 convex ribs (17), and the rotating ring (6) sets corresponding recess (18) along its outer wall circumference.
6. shaft sealer as claimed in claim 5, which is characterized in that 4 are set on the outside of the pump of the cylinder of the rotating seat (5)
A convex ribs (17) also each set 4 corresponding recess with spring cushion block (14) along its inner wall circumference uniform distribution, the rotating ring (6)
(18) along its outer wall circumference uniform distribution.
7. shaft sealer as described in claim 1, which is characterized in that the through hole opened up along the cylinder periphery of the rotating seat
(10) it is 4, and is evenly distributed with along the cylinder periphery of the rotating seat (5).
8. shaft sealer as claimed in claim 2, which is characterized in that the cylinder inboard wall setting of the rotating seat (5) is used for
Engage the bulge loop (29) of spring cushion block (14).
9. 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)；The second notch (21) is opened up on the outside of the pump of the stationary ring (4), for fixed pin (19) in a manner that pine is matched somebody with somebody
Insertion.
10. 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.
11. a kind of for conveying the impeller pump of non-hygiene 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 in any one of claim 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610917398.4A CN106286291B (en) | 2016-10-21 | 2016-10-21 | Rotor pump shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610917398.4A CN106286291B (en) | 2016-10-21 | 2016-10-21 | Rotor pump shaft sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106286291A CN106286291A (en) | 2017-01-04 |
| CN106286291B true CN106286291B (en) | 2018-05-18 |
Family
ID=57719632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610917398.4A Active CN106286291B (en) | 2016-10-21 | 2016-10-21 | Rotor pump shaft sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106286291B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061266A (en) * | 2017-05-22 | 2017-08-18 | 宁波邦威泵业有限公司 | Impeller pump and its shaft sealer |
| CN107100883A (en) * | 2017-05-23 | 2017-08-29 | 孙海龙 | A kind of chemical centrifugal pump with shock-absorbing function |
| CN108302035B (en) * | 2017-12-20 | 2023-04-21 | 杭州电子科技大学 | Packaging mechanical seal elastomer double-screw pump |
| CN109176988B (en) * | 2018-11-22 | 2020-07-07 | 山东豪迈机械科技股份有限公司 | Sealing device and vacuumizing tire mold |
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 |
| CN206144785U (en) * | 2016-10-21 | 2017-05-03 | 宁波邦威泵业有限公司 | Rotor pump shaft -seal device |
-
2016
- 2016-10-21 CN CN201610917398.4A patent/CN106286291B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106286291A (en) | 2017-01-04 |
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