CN107061266A - Impeller pump and its shaft sealer - Google Patents
Impeller pump and its shaft sealer Download PDFInfo
- Publication number
- CN107061266A CN107061266A CN201710368428.5A CN201710368428A CN107061266A CN 107061266 A CN107061266 A CN 107061266A CN 201710368428 A CN201710368428 A CN 201710368428A CN 107061266 A CN107061266 A CN 107061266A
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- Prior art keywords
- seat
- ring
- rotating
- machine
- rotating ring
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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
- F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
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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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/126—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type
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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, sealed including machine at seat (3) and stationary ring (4), rotating seat (5) and the rotating ring (6) being driven by it, the gap between stationary ring (4) and machine envelope seat (3) and the first O-ring (8) is set；Cavity (28) is formed between rotating seat (5) and machine envelope seat (3), rotating seat (5) is made up of rotating ring front stall (25) with rotating ring back seat (26), rotating ring front stall (25) sets the outer ring (30) protruded in opposite directions and inner ring (31) with rotating ring back seat (26), enclose and form rotating seat inner chamber (9), mutual male-female engagement between respective inner ring (31), second O-ring (11) is set on the inside of the pump of rotating ring (6), compression spring (12) is set in rotating seat inner chamber (9), rotating ring (6) is mutually close to stationary ring (4), rotating seat (5) connects impeller (2) through at least one trundle (13), wherein one end close-fitting connection of trundle (13), the floating type insertion of the other end；The present invention can effectively lift the sealing performance and service life of impeller pump.
Description
Technical field
The present invention relates to a kind of impeller pump, especially its shaft sealer.
Background technology
Impeller pump is also known as colloid pump, vane pump, general-purpose delivery pump etc., due to its impeller shape such as cam, also referred to as lobe pump,
Impeller pump belongs to displacement pump；Generally birotor.Impeller pump is to convey unit by means of multiple fixed volumes in working chamber
Periodically it is converted and reaches the purpose of trandfer fluid material.A pair of synchromesh gears are generally driven by motor, major-minor axle, double turns is driven
Son synchronizes opposite direction rotation, the volume of pump is changed respectively under the drive of major-minor axle, so as to constitute higher true
Reciprocal of duty cycle and discharge pressure；It is low-pressure area at import, exit is higher-pressure region.Impeller pump is mainly used in sanitation-grade material and corrosion
Property, the conveying of high-viscosity material.
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 are leaked, the sealing of impeller pump is extremely important, with the development of 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 lifted, is this area
The target of technical staff's long-sought.The sealing of current impeller pump mainly includes mechanical sealing and material filling type sealing,
Based on mechanical sealing.The mechanical sealing of impeller pump is that the rotating ring and geo-stationary transported with axle are forced using spring
Stationary ring end face be mutually close to be formed at sealed revolute pair, the gap on periphery and use seal with O ring.Moved during due to rotor pump work
Ring and stationary ring friction, including the machine sealing of rotating ring and stationary ring and O-ring are all subjected to heating abrasion, cause its hydraulic performance decline, directly
To occurring being accomplished by maintenance downtime when fluid foods are substantially leaked.In prior art, also there is the fluid conveyed using it
Material carrys out the scheme of lubrication machine sealing, and its 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 turnover 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, reduction fluid foods influence the sealing performance of impeller pump and the service life of sealing to the cooling effect of machine sealing.Thing
In reality, the pressure for the fluid foods that space where turnover machine sealing is in contact with it is change, and inventor through studying for many years
It was found that, its machine sealing of prior art is being axially fixed design, and the exactly change to fluid material pressure is not taken
Suitable counter-measure, just causes the fluid foods compression shock of change to cause the service life of sealing performance and sealing
Large effect；So, how to overcome what fluid foods compression shock was caused to the service life of sealing performance and sealing
Considerable influenceIn this regard, inventor is proposed in prior art, rotating seat is set on the basis of compression spring,
The scheme for the pin that floats is set between rotating seat and impeller of rotor so that machine sealing can float vertically, with fluid foods pressure
The change of power so that sealing is also synchronous therewith when material pressure rises rises, it is ensured that sealing when material pressure rises；When
When material pressure declines, above-mentioned machine sealing automatically resets again, is rested and reorganized；Dynamic equilibrium can be thus reached, can be effectively
The considerable influence for overcoming fluid foods compression shock to cause the service life of sealing performance and sealing；Also can effectively it keep away
Exempt from material persistently overheating, the sealing performance of influence impeller pump and the service life of sealing that excessively accumulation is not circulated and caused
Phenomenon.In this regard, applicant proposes CN201610917398.4 patent applications, entitled " rotor in 2016.10.21
Pump shaft sealing device ", this patent application is through announcing, and publication No. is CN106286291A.
Although the relatively conventional rotor pump shaft sealing device of scheme that No. 201610917398.4 patent application is proposed
There is larger technological progress, but inventor has found, when the impeller pump using the program is used for high viscosity for a long time
During the conveying of material, caking materials heap still can occur at rotating seat, compression spring for the material of especially easy peeling caking
Product phenomenon, so as to influence the elasticity of compression spring, and then influences the sealing performance of impeller pump and the service life of sealing.
The present invention is precisely in order to solve above-mentioned technical problem.The present invention can be regarded as Chinese patent literature
The further improvement of scheme disclosed in CN106286291A.
The content of the invention
The technical problems to be solved by the invention are that there is provided a kind of impeller pump, especially its axle for the above-mentioned state of the art
The scheme of sealing device.
The present invention solve the technical scheme that is used of above-mentioned technical problem for：
A kind of shaft sealer of impeller pump, the axle (1) of the impeller pump is fixedly connected with the impeller (2) as rotor,
The shaft sealer includes machine and seals seat (3) and stationary ring (4), rotating seat (5) and the rotating ring (6) being driven by it, cylindrical
And be sleeved on outside axle (1), machine envelope seat (3) is sleeved on rotating seat (5) outside and is fixedly connected with the pump housing (7), and machine envelope seat (3) includes
Allow the material section that material enters and the seal section for not allowing material to enter, the internal diameter of material section is more than the internal diameter of seal section；It is quiet
Ring (4) is located at the seal section inner chamber of machine envelope seat (3) and is sleeved at material section, directly outside axle (1), and seals seat (3) with machine
The first O-ring (8) is set at connection, the gap between stationary ring (4) and machine envelope seat (3)；Rotating seat (5) is directly sleeved on axle (1)
Outside, rotating seat (5) is stretched into be formed between the material section inner chamber of machine envelope seat (3), material section and machine the envelope seat (3) of rotating seat (5)
Cavity (28), it is characterised in that the rotating seat (5) is the assembling assembled by rotating ring front stall (25) and rotating ring back seat (26)
Part, the rotating ring front stall (25) is set before the outer ring (30) protruded in opposite directions and inner ring (31), the rotating ring with rotating ring back seat (26)
Mutually male-female engagement, and be directly sleeved on axle between the seat inner ring (31) of (25) and the inner ring (31) of rotating ring back seat (26)
(1) outside, the inner ring (31) of the rotating ring front stall (25), the inner ring (31) of outer ring (30) and rotating ring back seat (26), outer ring (30)
Enclose and form rotating seat inner chamber (9), outer ring of the rotating seat inner chamber (9) through the rotating ring front stall (25) Yu rotating ring back seat (26)
(30) opening (10) formed between is communicated with the cavity (28), and compression spring (12) is set in rotating seat inner chamber (9), should
Compression spring (12) is also sleeved on outside axle (1)；The rotating ring (6) is located on the outside of the pump of rotating ring back seat (26), the rotating ring (6)
Lateral wall and rotating ring back seat (26) outer ring (30) inwall between mutually male-female engagement, the rotating ring (6) also directly suit
Outside axle (1), second O-ring (11) in gap between moving sealing ring (6) and axle (1) is provided on the inside of the pump of rotating ring (6),
The outer face (23) of rotating ring (6) is mutually close to stationary ring (4) inner face (24), and the rotating ring front stall (25) is driven through at least one
Sell (13) connection impeller (2), wherein one end close-fitting connection of the trundle (13), the floating type insertion of the other end.
It is further scheme individually below.
The inner ring (31) of the rotating ring front stall (25) sets the circular arc convex sheet that direction stretching is stretched out by its inner ring (31)
(32), the circular arc convex sheet (32) is 2, is arranged symmetrically along its inner ring (31) circumference；Accordingly, the rotating ring back seat (26)
Inner ring (31) open up arc gap (33), the arc gap (33) is 2, is also arranged symmetrically along its inner ring (31) circumference.
The section of the rotating ring back seat (26) is in " work " font, and second O-ring (11) is arranged on rotating ring back seat (26)
At gap between the rotating ring (6).
One end close-fitting of the trundle (13) opens up corresponding on impeller (2) on the inside of the pump of the rotating ring front stall (25)
The first breach (15) of quantity supplies trundle (13) floating type insertion.
It is symmetrical on the outside of pump on the impeller (2) to open up 2 pin-and-holes (16), wherein one end difference of 2 trundles (13)
2 first are also symmetrically opened up on the inside of 2 pin-and-holes (16) that close-fitting is inserted on the impeller (2), the pump of the rotating ring front stall (25)
Breach (15) supplies trundle (13) floating type insertion.
The outer ring (30) of the rotating ring back seat (26) is along its inwall circumference at least provided with 2 convex tendons (17), the rotating ring (6)
Along its lateral wall circumference, corresponding depression (18) is set.
Outer ring (30) inwall of the rotating ring back seat (26) sets 4 convex tendons (17) along its inwall circumference uniform distribution, described dynamic
4 corresponding depressions (18) are set on the outside of ring (6), along its outer wall circumference uniform distribution.
Described machine envelope seat (3) seal section opens up pin-and-hole (16), and the pin-and-hole (16) is at least 2, and seat (3) is sealed along the machine
Cylinder circumference uniform distribution, each pin-and-hole (16) inserts steady pin (19) in close-fitting mode；Second is opened up on the outside of the pump of the stationary ring (4)
Breach (21), is inserted for steady pin (19) with pine with mode.
The blind end of the machine envelope seat (3) sets flexible sealing to combine the unit, and the flexible sealing combination unit includes four
Fluorine circle or graphite annulus (34), are combined with packing or outside framework oil seal (35).
The axle (1) seals suit axle sleeve (36) at the blind end of seat (3) in machine, and the flexible sealing combination unit is sleeved on
Outside axle sleeve (36), axle sleeve (36) is fixedly mounted on axle (1) outer surface through finger screw (37), the envelope of the machine envelope seat (3)
The outside of closed end sets pressing plate (38), and the pressing plate (38) is fixedly mounted on the blind end of the machine envelope seat (3) through bolt (39)
Outside, sets the 3rd O-ring (40) between the axle sleeve (36) and axle (1).
The machine envelope seat (3) is to set flange end on the inside of an entirety, the pump of machine envelope seat (3), is opened up along flange end circumference
Multiple connecting holes (22), through multiple bolts (39) with being fixedly connected on the outside of the pump housing (7)；The flange end of the machine envelope seat (3) is opened
If annular groove (41), embedded 4th O-ring (42) in the annular groove (41).
The machine envelope seat (3) material section and seal section split are set into machine envelope front stall (43) and machine to be honored as a queen seat (44), institute
It is to seal front stall (43) and machine by machine to be honored as a queen the component that seat (44) assembles to state machine envelope seat (3), on the inside of the pump of machine envelope front stall (43)
Flange end is set, multiple connecting holes (22) are opened up along flange end circumference, the inner chamber of the pump housing (7) opens up flange installation cavity, machine
The flange end for sealing front stall (43) is embedded in the flange installation cavity, and machine is sealed into seat (3) from the inner chamber of the pump housing (7) through multiple bolts (39)
It is fixedly connected with the pump housing (7)；The 4th O-ring (42) is set between the flange end and the pump housing (7) of the machine envelope front stall (43).
On the outside of the pump of the machine envelope front stall (43) multiple screwed holes (46) are opened up along its wall thickness circumference；The machine is honored as a queen seat
(44) flange end is also provided with the inside of pump, multiple connecting holes (22) are opened up along its flange end circumference, through multiple bolts (39) by institute
Machine envelope front stall (43) is stated to be fixedly connected with machine seat (44) of being honored as a queen；Machine envelope front stall (43) and machine, which are honored as a queen between seat (44), sets the
Five O-rings (45).
A kind of impeller pump, including the pump housing (7), are located in the pump housing (7), synchronized case as 2 impellers (2) of interactive rotor
The respective corresponding impeller (2) of the parallel two piece axle (1) of output is fixedly connected, it is characterised in that every axle (1) also includes
Above-described shaft sealer.
Impeller pump of the present invention is cooled down and lubricated to machine sealing using material, and the material into machine sealing chamber is with impeller pump
Height nip does not stop conversion, and material ceaselessly passes 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 extending the service life of above-mentioned machine sealing.Sealing 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 just reached, can be efficiently against fluid foods compression shock to sealing performance and the service life of sealing
The considerable influence caused；Also material persistently overheating, the influence impeller pump that excessively accumulation is not circulated and caused can be effectively prevented from
The phenomenon of sealing performance and the service life of sealing.The relatively conventional impeller pump of the present invention, especially easy peeling caking
Material, can effectively lift the sealing performance of impeller pump, and significantly lift the service life of rotor shaft seal.And
And, the relatively conventional rotor shaft seal dress of the present invention scheme that No. 201610917398.4 patent application is proposed relatively
Put, the present invention instead of multiple through holes in former scheme with the circular opening formed between the outer ring of rotating ring back seat, before rotating ring
Rotating seat inner chamber 9 is formed between seat and the inner ring of rotating ring back seat and outer ring so that material passed in and out in inner chamber 9 it is more unobstructed, significantly
Alleviate material and packing phenomenon occurs at the compression spring of inner chamber, can keep the elasticity of compression spring good for a long time.So as to length
Phase keeps the sealing performance of impeller pump, increases substantially the service life of sealing.Installation of the compression spring in inner chamber 9 is changed
Also it is more convenient.In addition, present invention also offers the material section of machine envelope seat and seal section split are set into machine envelope front stall and machine
It is honored as a queen the prioritization scheme of seat, machine sealing is installed from pump body, just without dismantling the inlet/outlet pipe of pump during changing machine sealing
Road, is very easy to the maintenance work of impeller pump user.
Brief description of the drawings
Fig. 1 is the shaft sealer cross-sectional view of the impeller pump of the embodiment of the present invention one；
Fig. 2 is the local A enlarged diagrams in Fig. 1.
Fig. 3, Fig. 4 are the machine envelope seat schematic perspective view of the embodiment of the present invention one, show different azimuth；
Fig. 5, Fig. 6 are rotating ring schematic perspective view of the present invention, and different azimuth is shown respectively；
Fig. 7, Fig. 8 are stationary ring schematic perspective view of the present invention, and different azimuth is shown respectively；
Fig. 9, Figure 10 are rotating ring front stall schematic perspective view of the present invention, and different azimuth is shown respectively；
Figure 11, Figure 12 are rotating ring back seat schematic perspective view of the present invention, and different azimuth is shown respectively；
Figure 13, Figure 14 are axle sleeve schematic perspective view of the present invention, and different azimuth is shown respectively；
Figure 15 is the overall shaft sealer cross-sectional view of the impeller pump of the embodiment of the present invention one；
Figure 16 is the overall shaft sealer cross-sectional view of the impeller pump of the embodiment of the present invention two；
Figure 17, Figure 18 are the machine envelope front stall schematic perspective view of the embodiment of the present invention two, and different azimuth is shown respectively；
Figure 19, Figure 20 are honored as a queen a schematic perspective view for the machine of the embodiment of the present invention two, and different azimuth is shown respectively；
The two blade impeller schematic front view that Figure 21 is adapted to for the present invention；
The two blade impeller diagrammatic cross-section that Figure 22 is adapted to for the present invention；
Figure 23 is the local B enlarged diagrams in Figure 16.
Embodiment
Below with described in detail shown in Fig. 1 to Figure 20 the present invention embodiment.Describe for convenience, each machine is sealed
Part is referred to as on the inside of pump towards the side in impeller pump, towards impeller pump outside side be referred to as on the outside of pump.
Shaft sealer of the present invention is primarily adapted for use in impeller pump, and usual this impeller pump includes the pump housing 7, is used as interactive rotor
2 impellers 2 be located in the pump housing 7, each corresponding impeller 2 is fixedly connected for the parallel two piece axle 1 of synchronized case output；
Impeller 2 is usually twayblade or three blades, also there is single blade, quaterfoil, five blades.Shaft sealer of the present invention is especially suitable
In the impeller pump for transfer of highly viscous material or the fluid mechanics material of easy peeling caking.
Embodiment one
As shown in figure 1, a kind of shaft sealer of impeller pump, the axle 1 of the impeller pump as the impeller 2 of rotor with fixing
Connection, the shaft sealer includes machine and seals seat 3 and stationary ring 4, rotating seat 5 and the rotating ring 6 being driven by it, cylindrical and cover
Mounted in the outside of axle 1；Machine envelope seat 3 is sleeved on outside rotating seat 5 and is fixedly connected with the pump housing 7, and machine envelope seat 3 includes allowing what material entered
Material section and the seal section for not allowing material to enter, the internal diameter of material section are more than the internal diameter of seal section.Stationary ring 4 is located at machine and seals seat 3
Seal section inner chamber the outside of axle 1 is sleeved at material section, directly, and be connected with machine envelope seat 3.Following connection can specifically be used
Mode：Machine seals seat 3 and opens up pin-and-hole 16 close to its pump outside, and pin-and-hole 16 is at least 2, and the cylinder circumference uniform distribution of seat 3 is sealed along machine；
Usually, it is sufficient that cylinder for sealing seat 3 along machine symmetrically opens up 2, certainly, the cylinder circumference uniform distribution for sealing seat 3 along machine open up 3
It is individual, 4 can also.Each pin-and-hole 16 inserts steady pin 19 in close-fitting mode；Can also screwed hole replace pin-and-hole 16, curled up sealing
The screw of band replaces steady pin 19.Corresponding second breach 21 is opened up on the outside of the pump of stationary ring 4, as shown in Figure 7, Figure 8, for each fixation
Pin 19 is inserted with pine with mode.The first O-ring 8 is set at gap between stationary ring 4 and machine envelope seat 3.
As shown in figure 1, rotating seat 5 is directly sleeved on the outside of axle 1, rotating seat 5 stretches into the material section inner chamber that machine seals seat 3, moves
Cavity 28 is formed between material section and machine the envelope seat 3 of ring seat 5.Rotating seat 5 be assembled by rotating ring front stall 25 and rotating ring back seat 26 and
Into assembly；As shown in Fig. 9 to Figure 12, rotating ring front stall 25 sets the outer ring 30 protruded in opposite directions and inner ring with rotating ring back seat 26
31.As shown in Fig. 2 mutual male-female engagement between the inner ring 31 of rotating ring front stall 25 and the inner ring 31 of rotating ring back seat 26, and it is straight
Female connector is mounted in the outside of axle 1, and the inner ring 31 of rotating ring front stall 25, the inner ring 31 of outer ring 30 and rotating ring back seat 26, outer ring 30 are enclosed and formed
Rotating seat inner chamber 9, the opening 10 that the rotating seat inner chamber 9 is formed between the outer ring 30 through rotating ring front stall 25 and rotating ring back seat 26 and sky
Chamber 28 is communicated, and compression spring 12 is set in rotating seat inner chamber 9, and the compression spring 12 is also sleeved on the outside of axle 1.Rotating ring 6 is located at
On the outside of the pump of rotating ring back seat 26, mutual male-female engagement between the lateral wall of rotating ring 6 and the inwall of the outer ring 30 of rotating ring back seat 26 is moved
Ring 6 is also directly sleeved on the second O-ring that gap between moving sealing ring 6 and axle 1 is provided on the inside of the outside of axle 1, the pump of rotating ring 6
11, the outer face 23 of rotating ring 6 is mutually close to the inner face 24 of stationary ring 4, forms revolute pair.
Rotating ring front stall 25 connects impeller 2 through at least one trundle 13, and wherein one end close-fitting connection of trundle 13 is another
The floating type insertion in end., can be in the following ways for ease of manufacture：One end close-fitting of trundle 13 is on impeller 2, rotating ring front stall 25
Pump on the inside of open up respective numbers the first breach 15 supply the floating type insertion of trundle 13.With using 2 transmissions being arranged symmetrically
Pin 13 is preferred：2 pin-and-holes 16 symmetrically are opened up on the outside of pump on impeller 2, as shown in Figure 21, Figure 22；2 trundles being arranged symmetrically
Also 2 the are symmetrically opened up on the inside of 2 pin-and-holes 16 on 13 wherein one end difference close-fitting insertion impeller 2, the pump of rotating ring front stall 25
One breach 15 supplies the floating type insertion of trundle 13, as shown in Figure 9.
As shown in Figure 10, Figure 11, mutual male-female engagement mode is between the inner ring 31 of rotating ring front stall 25 and rotating ring back seat 26：
The inner ring 31 of rotating ring front stall 25 sets the circular arc convex sheet 32 that direction stretching is stretched out by its inner ring 31, and circular arc convex sheet 32 is 2,
It is arranged symmetrically along its circumference of inner ring 31；Accordingly, the inner ring 31 of rotating ring back seat 26 opens up arc gap 33, and arc gap 33 is 2
It is individual, also it is arranged symmetrically along its circumference of inner ring 31.As shown in Fig. 2 the section of rotating ring back seat 26 is in " work " font, the second O-ring 11
It is arranged at the gap between rotating ring back seat 26 and the rotating ring 6.
As shown in Fig. 2 the drive connection of rotating ring back seat 26 and rotating ring 6, that is, male-female engagement therebetween, it can use
Following manner：The outer ring 30 of rotating ring back seat 26 is along its inwall circumference at least provided with 2 convex tendons 17, and rotating ring 6 is along its lateral wall circumference
Corresponding depression 18 is set.It is specific to be preferred in the following ways：The inwall of outer ring 30 of rotating ring back seat 26 sets 4 edges of convex tendon 17
Its inwall circumference uniform distribution, as shown in figure 12；The outside of rotating ring 6 sets 4 corresponding depressions 18, along its outer wall circumference uniform distribution, such as schemes
5th, shown in Fig. 6.
As shown in Fig. 2 compression spring 12 first is placed in into rotating ring front stall 25 and rotating ring back seat during the assembling of the associated components of rotating seat 5
Between 26, then rotating ring 6 is pressed into rotating ring back seat 26 by convex tendon 17 by the depression 18 of rotating ring 6 along rotating ring back seat 26, and rotating ring 6
Outer face 23 is exposed at the outside of rotating seat 5.The second O-ring 11 is embedded between rotating ring back seat 26 and rotating ring 6 afterwards.
As shown in Figure 3, Figure 4, machine envelope seat 3 is to set flange end on the inside of an entirety, the pump of machine envelope seat 3, is justified along flange end
The multiple connecting holes 22 of Zhou Kaishe, are fixedly connected through multiple bolts 39 with the outside of the pump housing 7, machine envelope the flange end of seat 3 pump on the inside of with
The pump housing 7 is fitted；The flange end of machine envelope seat 3 opens up annular groove 41, embedded 4th O-ring 42 in annular groove 41.
As shown in Fig. 2 the blind end of machine envelope seat 3 sets flexible sealing to combine the unit, flexible sealing combination unit includes four
Fluorine circle or graphite annulus 34, are combined with packing or outside framework oil seal 35.The present invention is with reference to the respective excellent of mechanical seal and packing seal
The combined mechanically-sealing apparatus that point is developed, can be really achieved zero leakage；Mechanical seal is above undertaking pressure, plays its close
Front cover is pressure-resistant, wear-resisting advantage, when mechanical seal has a small amount of leakage, is sealed by flexible ring below, allows material and flexible ring
Seal together；Third layer sealed packing or the main function of outside framework oil seal 35 are isolation air, do not allow material and air contact in pump
And material is hardened, while be also the three seals to material, the material especially lumpd to easy peeling.
As shown in Fig. 2 axle 1 is sealed in machine is set with axle sleeve 36 at the blind end of seat 3, flexible sealing combination unit is sleeved on axle sleeve
36 outsides, axle sleeve 36 is fixedly mounted on the outer surface of axle 1 through finger screw 37, and the outside of the blind end of machine envelope seat 3 sets pressing plate
38, the pressing plate 38 is fixedly mounted on the outside of the blind end of machine envelope seat 3 through bolt 39, and the 3rd O shapes are set between axle sleeve 36 and axle 1
Circle 40.Axle sleeve 36 is as shown in Figure 13, Figure 14.
During machine envelope seat 3 associated components assembling, the loading machine of the stationary ring 4 envelope seat 3 of the first O-ring 8 is first will be equipped with, is made on stationary ring 4
The second breach 21 alignment machine envelope seat 3 on pin-and-hole 16, steady pin 19 insert by force machine seal seat 3 on pin-and-hole 16, steady pin
The second breach 21 that 19 front end is inserted on stationary ring 4 with pine with mode；Between retaining necessarily between steady pin 19 and stationary ring 4
Gap, so, can make stationary ring 4 during rotor pump work automatically adjust its position in the way of micro movement., first will be dynamic during overall assembling
The associated components of ring seat 5 in the pump housing machine sealing chamber, after machine envelope seat 3 is fixedly connected with the pump housing 7, make rotating ring 6 outer face 23 and
The inner face 24 of stationary ring 4 is mutually close to, and the first O-ring 8 is pressurized under the effect of compression spring 12 and forms initial deformation.When filling impeller 2,
Make the first breach 15 on the other end insertion rotating seat 5 with the trundle 13 of its close-fitting.
As shown in figure 1, during rotor pump work, machine envelope seat 3, steady 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 axle, are moved
The outer face 23 of ring 6 is mutually close to the inner face 24 of stationary ring 4, forms revolute pair.Due to rotating seat inner chamber 9 through rotating ring front stall 25 with
The opening 10 formed between the outer ring 30 of rotating ring back seat 26 is communicated with cavity 28, and cavity 28 is to communicate with the inner chamber of impeller pump
, the partial material of impeller pump inner chamber will enter cavity 28 and rotating seat inner chamber 9, to including stationary ring 4, the first O-ring 8, dynamic
Ring 6, the second O-ring 11, the machine sealing of compression spring 12 play cooling and lubrication；Also, due to rotating seat 5, rotating ring 6,
Second O-ring 11, compression spring 12 are rotated with axle, into cavity 28 especially into rotating seat inner chamber 9 material with impeller pump
Height nip do not stop conversion, material ceaselessly passes in and out in cavity 28 with rotating seat inner chamber 9, plays good to above-mentioned machine sealing
Good cooling and lubrication, so as to be conducive to extending the service life of above-mentioned machine sealing.Rotating ring 6 is with compression spring 12 with thing
Expect area, this model machine front cover is easier sealing；The pressure of material is identical with the elastic force direction of compression spring 12, is all to force rotating ring 6
Compressed with stationary ring 4, while forcing the second O-ring 11 and the first O-ring 8 to be compacted.Because trundle 13 is that floating type insertion is dynamic
First breach 15 of ring seat 5, when entering cavity 28 and the material pressure of rotating seat inner chamber 9 rises, forces the quilt of compression spring 12
Further compression, pump outside is mobile vertically for rotating seat 5, while forcing the second O-ring 11 and the first O-ring 8 further to be pressed
Tightly, the thrust between rotating ring 6 and stationary ring 4 is increased；Due to the second breach 21 of steady pin 19 and stationary ring 4 leave it is certain between
Gap, also forces the micro movement on the outside of pump vertically of stationary ring 4, and the first O-ring 8 is further compacted；It is close when i.e. material pressure rises
Envelope property is also synchronous therewith to be risen, it is ensured that sealing when material pressure rises.When material pressure declines, above-mentioned machine sealing again from
It is dynamic to reset, rested and reorganized, can thus reach dynamic equilibrium, can be efficiently against fluid foods compression shock to sealing
The considerable influence that can be caused with the service life of sealing；The material of especially easy peeling caking, can be effectively prevented from material
It is persistently overheating that excessive accumulation is not circulated and caused, and influences showing for the sealing performance of impeller pump and the service life of sealing
As.The present invention can effectively lift the sealing performance of impeller pump, and significantly lift the service life of rotor shaft seal.
In addition, design, the size of compression spring 12 of the size of rotating seat inner chamber 9 that rotating ring front stall 25 is formed with rotating ring back seat
, it should ensure that the first breach 15 of rotating seat 5 floats without departing from trundle 13 along trundle 13 all the time.
Figure 15 is the overall shaft sealer cross-sectional view of the impeller pump of the embodiment of the present invention one.This impeller pump,
Including the pump housing 7, be located at as 2 impellers 2 of interactive rotor in the pump housing 7, the parallel two piece axle 1 of synchronized case output each with
Its corresponding impeller 2 is fixedly connected, and every axle 1 is provided with above-described shaft sealer.
Embodiment two
As shown in Figure 16, Figure 23, the present embodiment seals machine the material section and seal section of seat 3 on the basis of embodiment one
Split is set to machine envelope front stall 43 and machine and is honored as a queen seat 44, and machine seals that seat 3 seals front stall 43 by machine and machine seat 44 of being honored as a queen assembles
Flange end is set on the inside of component, the pump of machine envelope front stall 43, multiple connecting holes 22 are opened up along flange end circumference, the inner chamber of the pump housing 7 is opened
Try blue installation cavity, the flange end insertion flange installation cavity of machine envelope front stall 43 seals machine through multiple bolts 39 from the inner chamber of the pump housing 7
Seat 3 is fixedly connected with the pump housing 7, and the 4th O-ring 42 is set between the flange end and the pump housing 7 of machine envelope front stall 43；Figure 23 is in Figure 16
Local B enlarged diagrams, Figure 16 can be referred to.It is different from embodiment one, it is on the outside of the pump of the machine envelope flange end of seat 3 and the pump housing 7
Laminating.On the outside of the pump of machine envelope front stall 43 multiple screwed holes 46 are opened up along its wall thickness circumference；Machine be honored as a queen seat 44 pump on the inside of be also provided with
Flange end, multiple connecting holes 22 are opened up along its flange end circumference, and machine is sealed into front stall 43 and machine seat 44 of being honored as a queen through multiple bolts 39 and consolidated
Fixed connection；Machine, which seals front stall 43 and machine, is honored as a queen between seat 44 and sets the 5th O-ring 45.4th O-ring 42 is also embedded in the machine envelope method of seat 3
On the outside of Lan Duan pump.Machine, which seals front stall 43 and machine, is honored as a queen between seat 44 and also sets up the 5th O-ring 45.Other embodiments one continued to use
Scheme.
Figure 16 is the overall shaft sealer cross-sectional view of the impeller pump of the embodiment of the present invention two.This impeller pump,
Including the pump housing 7, be located at as 2 impellers 2 of interactive rotor in the pump housing 7, the parallel two piece axle 1 of synchronized case output each with
Its corresponding impeller 2 is fixedly connected, and every axle 1 is provided with above-described shaft sealer.The machine sealing of the present embodiment from
Pump body is installed, and is the maintenance of impeller pump user just without dismantling the import and export pipeline of pump during changing machine sealing
Bring conveniently.
Claims (14)
1. a kind of shaft sealer of impeller pump, the axle (1) of the impeller pump is fixedly connected with the impeller (2) as rotor, institute
State shaft sealer and seal seat (3) and stationary ring (4), rotating seat (5) and the rotating ring (6) that is driven by it including machine, it is cylindrical simultaneously
It is sleeved on outside axle (1), machine envelope seat (3) is sleeved on rotating seat (5) outside and is fixedly connected with the pump housing (7), machine envelope seat (3) includes permitting
Perhaps material enters material section and do not allow the seal section of material entrance, the internal diameter of material section is more than the internal diameter of seal section；Stationary ring
(4) it is located at the seal section inner chamber of machine envelope seat (3) to be sleeved at material section, directly outside axle (1), and with machine envelope seat (3) even
Connect, the first O-ring (8) is set at the gap between stationary ring (4) and machine envelope seat (3)；Rotating seat (5) is directly sleeved on axle (1) outside
Face, rotating seat (5) stretches between the material section inner chamber of machine envelope seat (3), material section and machine the envelope seat (3) of rotating seat (5) and forms empty
Chamber (28), it is characterised in that the rotating seat (5) is the assembling assembled by rotating ring front stall (25) and rotating ring back seat (26)
Part, the rotating ring front stall (25) is set before the outer ring (30) protruded in opposite directions and inner ring (31), the rotating ring with rotating ring back seat (26)
Mutually male-female engagement, and be directly sleeved on axle between the seat inner ring (31) of (25) and the inner ring (31) of rotating ring back seat (26)
(1) outside, the inner ring (31) of the rotating ring front stall (25), the inner ring (31) of outer ring (30) and rotating ring back seat (26), outer ring (30)
Enclose and form rotating seat inner chamber (9), outer ring of the rotating seat inner chamber (9) through the rotating ring front stall (25) Yu rotating ring back seat (26)
(30) opening (10) formed between is communicated with the cavity (28), and compression spring (12) is set in rotating seat inner chamber (9), should
Compression spring (12) is also sleeved on outside axle (1)；The rotating ring (6) is located on the outside of the pump of rotating ring back seat (26), the rotating ring (6)
Lateral wall and rotating ring back seat (26) outer ring (30) inwall between mutually male-female engagement, the rotating ring (6) also directly suit
Outside axle (1), second O-ring (11) in gap between moving sealing ring (6) and axle (1) is provided on the inside of the pump of rotating ring (6),
The outer face (23) of rotating ring (6) is mutually close to stationary ring (4) inner face (24), and the rotating ring front stall (25) is driven through at least one
Sell (13) connection impeller (2), wherein one end close-fitting connection of the trundle (13), the floating type insertion of the other end.
2. shaft sealer as claimed in claim 1, it is characterised in that the inner ring (31) of the rotating ring front stall (25) sets and pressed
Its inner ring (31) stretches out the circular arc convex sheet (32) of direction stretching, and the circular arc convex sheet (32) is 2, along its inner ring (31) circle
Week is arranged symmetrically；Accordingly, the inner ring (31) of the rotating ring back seat (26) opens up arc gap (33), the arc gap (33)
For 2, also it is arranged symmetrically along its inner ring (31) circumference.
3. shaft sealer as claimed in claim 1, it is characterised in that the section of the rotating ring back seat (26) is in " work " word
Type, second O-ring (11) is arranged at the gap between rotating ring back seat (26) and the rotating ring (6).
4. shaft sealer as claimed in claim 1, it is characterised in that one end close-fitting of the trundle (13) is in impeller
(2) on, the first breach (15) that respective numbers are opened up on the inside of the pump of the rotating ring front stall (25) is inserted for trundle (13) is floating type
Enter.
5. shaft sealer as claimed in claim 3, it is characterised in that symmetrically open up 2 on the outside of the pump on the impeller (2)
2 pin-and-holes (16) on pin-and-hole (16), wherein one end difference close-fitting insertion impeller (2) of 2 trundles (13) are described dynamic
Also 2 the first breach (15) are symmetrically opened up on the inside of the pump of ring front stall (25) and supply trundle (13) floating type insertion.
6. shaft sealer as claimed in claim 1, it is characterised in that the outer ring (30) of the rotating ring back seat (26) is along along it
Wall circumference sets corresponding depression (18) at least provided with 2 convex tendons (17), the rotating ring (6) along its lateral wall circumference.
7. shaft sealer as claimed in claim 6, it is characterised in that outer ring (30) inwall of the rotating ring back seat (26) is set
4 convex tendons (17) are put along its inwall circumference uniform distribution, rotating ring (6) outside sets 4 corresponding depressions (18), along its outer wall
Circumference uniform distribution.
8. shaft sealer as claimed in claim 1, it is characterised in that described machine envelope seat (3) seal section opens up pin-and-hole
(16), the pin-and-hole (16) is at least 2, the cylinder circumference uniform distribution of seat (3) is sealed along the machine, each pin-and-hole (16) is in close-fitting mode
Insert steady pin (19)；The second breach (21) is opened up on the outside of the pump of the stationary ring (4), is inserted for steady pin (19) with pine with mode
Enter.
9. shaft sealer as claimed in claim 1, it is characterised in that the blind end of the machine envelope seat (3) sets flexible close
Envelope combination unit, the flexible sealing combination unit includes tetrafluoro circle or graphite annulus (34), with packing or outside framework oil seal (35) group
Close.
10. shaft sealer as claimed in claim 9, it is characterised in that the axle (1) is sealed at the blind end of seat (3) in machine
Axle sleeve (36) is set with, the flexible sealing combination unit is sleeved on outside axle sleeve (36), and axle sleeve (36) is solid through finger screw (37)
Dingan County is on axle (1) outer surface, and the outside of the blind end of the machine envelope seat (3) sets pressing plate (38), and the pressing plate (38) is through spiral shell
Bolt (39) is fixedly mounted on the outside of the blind end of the machine envelope seat (3), and the 3rd O is set between the axle sleeve (36) and axle (1)
Shape circle (40).
11. shaft sealer as claimed in claim 1, it is characterised in that the machine envelope seat (3) is an entirety, machine envelope seat
(3) flange end is set on the inside of pump, multiple connecting holes (22) are opened up along flange end circumference, through multiple bolts (39) and the pump housing (7)
Outside be fixedly connected；The flange end of the machine envelope seat (3) opens up annular groove (41), the embedded 4th O shapes in the annular groove (41)
Enclose (42).
12. shaft sealer as claimed in claim 1, it is characterised in that the machine is sealed into seat (3) material section and seal section
Split is set to machine envelope front stall (43) and is honored as a queen seat (44) with machine, and the machine envelope seat (3) is to seal front stall (43) and machine by machine to be honored as a queen seat
(44) flange end is set on the inside of the component assembled, the pump of machine envelope front stall (43), multiple connections are opened up along its flange end circumference
Hole (22), the inner chamber of the pump housing (7) opens up flange installation cavity, and the flange end of machine envelope front stall (43) is embedded in the flange and installed
Chamber, seals seat (3) by machine through multiple bolts (39) from the inner chamber of the pump housing (7) and is fixedly connected with the pump housing (7)；The machine envelope front stall (43)
Flange end and the pump housing (7) between set the 4th O-ring (42).
13. shaft sealer as claimed in claim 12, it is characterised in that along its wall on the outside of the pump of the machine envelope front stall (43)
Thick circumference opens up multiple screwed holes (46)；The machine be honored as a queen seat (44) pump on the inside of be also provided with flange end, along its flange end circumference
Multiple connecting holes (22) are opened up, the machine is sealed into front stall (43) through multiple bolts (39) and machine seat (44) of being honored as a queen is fixedly connected；Institute
Machine envelope front stall (43) and machine is stated to be honored as a queen the 5th O-ring (45) of setting between seat (44).
14. a kind of impeller pump, including the pump housing (7), are located in the pump housing (7), synchronized case as 2 impellers (2) of interactive rotor
The respective corresponding impeller (2) of the parallel two piece axle (1) of output is fixedly connected, it is characterised in that every axle (1) also includes
Shaft sealer as described in claim 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710368428.5A CN107061266A (en) | 2017-05-22 | 2017-05-22 | Impeller pump and its shaft sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710368428.5A CN107061266A (en) | 2017-05-22 | 2017-05-22 | Impeller pump and its shaft sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107061266A true CN107061266A (en) | 2017-08-18 |
Family
ID=59610470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710368428.5A Pending CN107061266A (en) | 2017-05-22 | 2017-05-22 | Impeller pump and its shaft sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061266A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386462A (en) * | 2018-12-11 | 2019-02-26 | 余姚市华泰邦威泵业有限公司 | Rotor pump shaft sealing device |
| CN115013306A (en) * | 2022-07-12 | 2022-09-06 | 宁波邦威泵业有限公司 | Shaft sealing device of rotor pump |
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| CN2141488Y (en) * | 1992-09-22 | 1993-09-01 | 杭州碱泵厂 | Built-in forced refrigerating mechanic sealing |
| CN2826028Y (en) * | 2005-08-10 | 2006-10-11 | 杭州南方特种泵业有限公司 | Mechanical sealing structure for pump |
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| CN202418015U (en) * | 2011-11-23 | 2012-09-05 | 单丽琼 | Balanced cartridge mechanical sealing device for vertical pump |
| CN106286291A (en) * | 2016-10-21 | 2017-01-04 | 宁波邦威泵业有限公司 | Impeller pump shaft sealer |
| CN205877192U (en) * | 2016-07-26 | 2017-01-11 | 马鞍山市方正机械制造有限责任公司 | Flush slag stirs cage machine bearing under water and sealing device thereof |
| CN207004804U (en) * | 2017-05-22 | 2018-02-13 | 宁波邦威泵业有限公司 | Impeller pump and its shaft sealer |
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2017
- 2017-05-22 CN CN201710368428.5A patent/CN107061266A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2141488Y (en) * | 1992-09-22 | 1993-09-01 | 杭州碱泵厂 | Built-in forced refrigerating mechanic sealing |
| CN2826028Y (en) * | 2005-08-10 | 2006-10-11 | 杭州南方特种泵业有限公司 | Mechanical sealing structure for pump |
| CN201723725U (en) * | 2010-06-17 | 2011-01-26 | 宁波伏尔肯机械密封件制造有限公司 | Mechanical sealing device |
| CN202418015U (en) * | 2011-11-23 | 2012-09-05 | 单丽琼 | Balanced cartridge mechanical sealing device for vertical pump |
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| CN207004804U (en) * | 2017-05-22 | 2018-02-13 | 宁波邦威泵业有限公司 | Impeller pump and its shaft sealer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386462A (en) * | 2018-12-11 | 2019-02-26 | 余姚市华泰邦威泵业有限公司 | Rotor pump shaft sealing device |
| CN109386462B (en) * | 2018-12-11 | 2024-06-18 | 浙江华泰邦威泵业有限公司 | Rotor pump shaft sealing device |
| CN115013306A (en) * | 2022-07-12 | 2022-09-06 | 宁波邦威泵业有限公司 | Shaft sealing device of 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 |
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Application publication date: 20170818 |