CN109386462A - Rotor pump shaft sealing device - Google Patents
Rotor pump shaft sealing device Download PDFInfo
- Publication number
- CN109386462A CN109386462A CN201811510136.1A CN201811510136A CN109386462A CN 109386462 A CN109386462 A CN 109386462A CN 201811510136 A CN201811510136 A CN 201811510136A CN 109386462 A CN109386462 A CN 109386462A
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- China
- Prior art keywords
- seat
- ring
- machine
- stationary
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007789 sealing Methods 0.000 title claims abstract description 61
- 239000000463 material Substances 0.000 claims abstract description 46
- 239000011797 cavity material Substances 0.000 claims abstract description 28
- 230000006835 compression Effects 0.000 claims abstract description 27
- 238000007906 compression Methods 0.000 claims abstract description 27
- 239000002826 coolant Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 238000007667 floating Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 6
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 5
- 235000011613 Pinus brutia Nutrition 0.000 claims description 5
- 241000018646 Pinus brutia Species 0.000 claims description 5
- 238000009827 uniform distribution Methods 0.000 claims description 4
- 230000035939 shock Effects 0.000 abstract description 8
- 239000012530 fluid Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 12
- 238000001816 cooling Methods 0.000 description 10
- 235000013305 food Nutrition 0.000 description 9
- 239000003921 oil Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000004992 fission Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 241001347978 Major minor Species 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000734468 Listera Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of rotor pump shaft sealing device is provided, seat (1), stationary seat (2), stationary ring (3), rotating seat (5), rotating ring (6) are sealed including machine, the corresponding recess (9) of stationary ring (3) setting, convex ribs (8) are arranged in rotating seat (5), the corresponding recess (9) of rotating ring (6) setting；Rotating seat (5), rotating ring (6), stationary ring (3), stationary seat (2) in machine envelope seat (1) inner cavity material section, along axis (4), from interior lateral pump outside is pumped, successively arrange by fitting, machine seals seat (1) and rotating ring (6), being formed between stationary ring (3) allows material to enter toroidal cavity (10), machine seals seat (1) bore seal section setting compression spring (11), rotating ring (6) and the recess (9) of stationary ring (3) are only opened up in its segment thickness, and rotating ring (6) and the rest part thickness of stationary ring (3) keep former annulus shape；Rotating ring (6) is mutually close to the contact surface of stationary ring (3)；The shock strength of rotating ring, stationary ring is significantly improved, the secondary generation vibration of friction can be effectively prevented from and split phenomenon.
Description
Technical field
The present invention relates to a kind of rotor pump shaft sealing devices.
Background technique
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.It is usually driven by motor a pair of of synchromesh gear, is driven major-minor axis, double turns
Son under the drive of major-minor axis, synchronizes opposite direction rotation, the volume of pump is made to change respectively, to constitute higher true
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
The conveying of property, high-viscosity material.
Material is subjected to elevated pressures in pump output terminal when 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 leakage, 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 forced using spring with axis transhipment rotating ring with it is opposing stationary
Stationary ring end face be mutually close to form the revolute pair of sealing, use seal with O ring at the gap on periphery.It is moved when due to 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 performance to decline, directly
To occurring just needing maintenance downtime when fluid foods obviously leak.In prior art, also there is the fluid conveyed using it
Material carrys out the scheme of lubrication machine sealing, machine sealing be axially it is fixed, such as Chinese patent literature
CN201401323Y is the utility model open file of affiliated company's application of patent applicant of the present invention, due to passing in and out machine sealing
The fluid foods in place space have elevated pressures, have biggish extruding force to machine sealing, and once excessive accumulation is not circulated,
Will persistently overheating, reduce fluid foods to the cooling effect of machine sealing, influence the sealing performance and sealing of impeller pump
Service life.
In fact, the pressure for the fluid foods that space where disengaging machine sealing is in contact with it is variation, inventor
After years of research and found that its machine sealing of the prior art is being axially fixed design, the exactly change to fluid material pressure
Suitable counter-measure is not taken in change, and the fluid foods compression shock of variation is just caused to make sealing performance and sealing
Large effect is caused with the service life；So, how to overcome use of the fluid foods compression shock to sealing performance and sealing
Larger impact caused by service life；In this regard, inventor proposes in prior art, the base of compression spring is arranged in rotating seat
On plinth, the scheme of setting floating pin, allows machine sealing along axial floating, with fluid between rotating seat and impeller of rotor
The variation of material pressure rises so that leakproofness is also synchronous therewith when material pressure rises, it is ensured that when material pressure rises
Sealing；When material pressure decline, above-mentioned machine sealing automatically resets again, is rested and reorganized；It thus can achieve dynamic equilibrium, it can
Efficiently against fluid foods compression shock larger impact caused by the service life of sealing performance and sealing；Can also have
Effect avoid material excessively accumulate do not circulate and caused by persistently overheating, influence the sealing performance of impeller pump and making for sealing
The phenomenon that with the service life.In this regard, the affiliated enterprise of applicant proposes CN201610917398.4 patent application in 2016.10.21,
Entitled " rotor pump shaft sealing device ", this patent application is through announcing, publication No. CN106286291A.The public affairs
In cloth scheme, convex ribs, the corresponding recess of stationary ring lateral wall circumference setting are arranged in stationary seat inner wall circumference, and rotating seat inner wall circumference is set
Convex ribs are set, the corresponding recess of rotating ring lateral wall circumference setting forms pine and matches between each convex ribs and recess；Rotating ring, quiet is solved with this
Transmission between the positioning and rotating ring and axis of ring.For the ease of production, rotating ring, being recessed for stationary ring run through the thickness of its place wall.
Although the relatively traditional rotor pump shaft sealing device of the scheme that No. 201610917398.4 patent application is proposed
There is biggish technological progress, but inventor has found that rotating ring, stationary ring are generally by silicon carbide, graphite, ceramics, nitridation
The materials such as silicon, hard alloy are made, and hardness is high, and wearability is good, but due to being long-term relative friction, vibration between rotating ring, stationary ring
Friction pair, when work is stress concentration region, and rotating ring, stationary ring can rupture after a certain period of time for work, including CN106286291A exists
It is interior in the prior art, due to rotating ring, stationary ring through recess can significantly weaken rotating ring, stationary ring shock strength；Work one
The pair that rubs during operation after fixing time is easy to happen vibration and splits phenomenon.
In addition, keeping the elasticity of impeller pump compression spring extremely important, if compression spring declines, will severely impact
The sealing performance of its shaft sealer and the service life of sealing.In prior art, rotor pump shaft sealing device by
What pressing spring was designed to contact with material, if inventor is in scheme of the invention before this, these schemes are by this case Shen
The affiliated company that asks someone proposed patent application.First is that the CN201610917398.4 patent application that 2016.10.21 is proposed, invention
Entitled " rotor pump shaft sealing device ", publication No. CN106286291A；Second is that CN201610916537.1 patent application,
Entitled " shaft sealer of impeller pump ", publication No. CN106286290A；Material is easy at the compression spring of inner cavity
Packing phenomenon occurs.Third is that 2017.05.22 propose CN201710368428.5 patent application, it is entitled " impeller pump and
Its shaft sealer ", publication No. CN107061266A；With circular opening instead of multiple through-holes in former scheme, so that object
Material is more unobstructed in the inner cavity disengaging where compression spring, can mitigate material and packing phenomenon occurs at the compression spring of inner cavity；But
It is not inherently eliminated because of compression spring drawback brought by contacting with material, it is existing that material accumulation still can occur at spring
As to influence the elasticity of compression spring, and then influencing 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 disclosed in the above Chinese patent literature
Scheme further improvement.
Summary of the invention
The technical problem to be solved by the present invention is to statuses in view of the above technology, provide a kind of impeller pump, especially its axis
The scheme of sealing device.
The technical scheme of the invention to solve the technical problem is:
A kind of rotor pump shaft sealing device, including machine seal seat (1), stationary seat (2), stationary ring (3), the rotating seat rotated with axis (4)
(5) and the rotating ring (6) that is driven by it, be sleeved on outside axis (4), machine envelope seat (1) be sleeved on it is outer and with the pump housing (7) are fixed connects
It connects, machine envelope seat (1) inner cavity includes the material section for allowing material to enter and the seal section for not allowing material entrance, the internal diameter of material section
Greater than the internal diameter of seal section；2 convex ribs (8), the stationary ring is at least arranged in its inner wall circumference of lateral edge in stationary seat (2) pump
(3) corresponding recess (9) is set along its lateral wall circumference, its inner wall circumference of the outer lateral edge of pump of the rotating seat (5) is at least arranged 2
Corresponding recess (9), shape between each convex ribs (8) and recess (9) is arranged along its lateral wall circumference in a convex ribs (8), the rotating ring (6)
Cheng Song matches；It is characterized in that, the rotating seat (5), rotating ring (6), stationary ring (3), stationary seat (2) seal seat (1) inner cavity material in machine
Along axis (4), from interior lateral pump outside is pumped, successively fitting arranges that machine, which seals to be formed between seat (1) and rotating ring (6), stationary ring (3), to be allowed to section
Material enters toroidal cavity (10), and machine seals seat (1) bore seal section and compression spring (11) are arranged, the rotating ring (6) and stationary ring (3)
Recess (9) only opened up in its segment thickness, and the rest part thickness of the rotating ring (6) and stationary ring (3) keeps former circular ring shape
Shape；The contact surface of the rotating ring (6) is mutually close to the contact surface of stationary ring (3).
It is further embodiment individually below.
It is arranged the first O-ring (12) between machine envelope seat (1) and stationary seat (2), machine seals between seat (1) and the pump housing (7)
It is arranged the second O-ring (13), third O-ring (14) is set between the rotating seat (5) and axis (4), the rotating seat (5) and dynamic
4th O-ring (15) is set between ring (6), the 5th O-ring (16) is set between the stationary ring (3) and stationary seat (2).
The rotating seat (5) is provided with step ring (17), and rotating ring (6) is shelved on step ring (17) outside.
Described machine envelope seat (1) seal section opens up threaded hole (18), and the threaded hole (18) is at least 2, seals along the machine
The cylinder circumference uniform distribution of seat (1), each threaded hole (18) are inserted into dogbolt (19) to seal fit system, dogbolt (19)
Front end is latch (20)；It is opened up notch (21) on the outside of the pump of the stationary seat (2), the latch of dogbolt (19) front end
(20) in the notch (21) for being inserted into the stationary seat (2) in such a way that pine is matched；The rotating seat (2) connects through at least two trundle (22)
It connects impeller (23), one end close-fitting of the trundle (22) opens up corresponding on impeller (23) on the inside of the pump of the rotating seat (5)
The notch (21) of quantity is for trundle (22) floating type insertion.
2 pin holes (24), wherein one end difference of 2 trundles (22) are symmetrically opened up on the outside of pump on the impeller (23)
Close-fitting is inserted into 2 pin holes (24) on the impeller (23), also symmetrically opens up 2 notches on the inside of the pump of the rotating seat (5)
(21) for trundle (22) floating type insertion.
Machine envelope seat (1) bore seal section setting check ring (25), check ring (25) cross section are in angle square shape,
With sleeve part (25A) and retaining ring portion (25B), the sleeve part (25A) of the check ring (25) is sleeved on axis (4), it is described by
Pressing spring (11) is the single traditional big spring or waveform spring being sleeved on outside the sleeve part (25A) of check ring (25)；
Alternatively, the compression spring (11) is the multiple little springs uniformly distributed along sleeve part (25A) excircle of check ring (25)；It is described
The both ends of compression spring (11) are stuck between stationary seat (2) and the retaining ring portion (25B) of check ring (25), also set up spring
Washer (31) is padded between stationary seat (2) and the retaining ring portion (25B) of check ring (25).
Described machine envelope seat (1) circumferential wall offers coolant liquid manhole appendix (26), configures coolant liquid outside machine envelope seat (1)
The circulatory system；The axis (4) is set with axle sleeve (27) in the seal section of machine envelope seat (1), and axle sleeve (27) is fixedly mounted through limit screw
On axis (4) outer surface, machine envelope seat (1) outer end setting oil seal washer (28), the oil seal washer (28) is sleeved on axle sleeve (27) outside
Oil seal washer (28) are pushed down in seal section outside setting pressing plate (29) in face, machine envelope seat (1), which pacifies through bolt is fixed
On the outside of the seal section of machine envelope seat (1), the 6th O-ring (30) is set between the axle sleeve (27) and axis (4).
Machine envelope seat (1) is an entirety, and machine, which seals on the inside of the pump of seat (1), is arranged flange end (32), along flange end (32)
Circumference opens up multiple connecting holes (33), through being fixedly connected on the outside of multiple bolts and the pump housing (7)；The flange of machine envelope seat (1)
End (32) opens up annular groove (34), insertion second O-ring (13) in the annular groove (34).
It is that machine seals front stall (1A) and machine is honored as a queen seat (1B), institute by machine envelope seat (1) material section and seal section split settings
Stating machine envelope seat (1) is to seal front stall (1A) and machine by machine to be honored as a queen the component that seat (1B) assembles, and machine seals on the inside of the pump of front stall (1A)
It is arranged flange end (32), is opened up multiple connecting holes (33) along its flange end (32) circumference, the inner cavity of the pump housing (7) opens up flange
Installation cavity, the flange end (32) that machine seals front stall (1A) are embedded in the flange installation cavity, will through multiple bolts from the inner cavity of the pump housing (7)
Machine envelope seat (1) is fixedly connected with the pump housing (7)；Second O-ring (13) setting machine envelope front stall (1A) flange end (32) with
Between the pump housing (7).
Its wall thickness circumference of the outer lateral edge of pump of machine envelope front stall (1A) opens up multiple threaded holes (18)；The machine is honored as a queen seat
Flange end (32) are also provided on the inside of the pump of (1B), multiple connecting holes (33) are opened up along its flange end (32) circumference, through multiple bolts
The machine envelope front stall (1A) and machine seat (1B) of being honored as a queen are fixedly connected；Machine envelope front stall (1A) and machine are honored as a queen between seat (1B) and are set
Set the 7th O-ring (35).
Shaft sealer of the present invention is directed to rotating ring, significantly weakening rotating ring, the antidetonation of stationary ring are strong for the recess meeting that runs through of stationary ring
Degree, the friction pair during operation that works after a certain period of time are easy to happen vibration and split phenomenon, propose the recess of rotating ring (6) and stationary ring (3)
(9) it is only opened up in its segment thickness, the rest part thickness of rotating ring (6) and stationary ring (3) keeps former annulus shape；Significantly promoted
The shock strength of rotating ring, stationary ring, can be effectively prevented from that friction is secondary to be occurred vibration and split phenomenon.
Shaft sealer compression spring of the present invention is located in machine envelope seat bore seal section, will not contact always with material, from
Drawback brought by contacting with material is fundamentally eliminated because of compression spring, material accumulation phenomenon occurs never again at spring,
Compression spring can keep its its elasticity well, and then can keep the sealing performance of impeller pump and the use of sealing well
Service life.
In addition, the 4th O-ring (15), stationary ring (3) between shaft sealer rotating seat (5) of the present invention and rotating ring (6) with
The 5th O-ring (16) between stationary seat (2) not only plays sealing function, while also playing a part of bumper and absorbing shock.The present invention
Shaft sealer rotating seat (5) is provided with step ring (17), and rotating ring (6) is shelved on step ring (17) outside, can be effectively prevented from dynamic
It is mutually touched between ring and axis and causes to damage.Shaft sealer setting check ring (25) of the present invention can effectively avoid being pressurized
The both ends of spring (11) touch axis and may abrade axis surface.
The present invention also provides be that machine seals front stall and machine and is honored as a queen seat by the material section of machine envelope seat and seal section split settings
Prioritization scheme, machine sealing are installed from pump body, and when changing machine sealing does not just have to the inlet and outlet pipeline of disassembly pump, are facilitated
The maintenance of impeller pump user works.
Detailed description of the invention
Fig. 1 is uniaxial shaft sealer of the embodiment of the present invention one with cooling system impeller pump and the pump housing, impeller section knot
Structure schematic diagram；
Fig. 2 is twin shaft shaft sealer of the embodiment of the present invention one with cooling system impeller pump and pump housing the schematic diagram of the section structure；
Fig. 3 is uniaxial shaft sealer the schematic diagram of the section structure of the embodiment of the present invention one with cooling system impeller pump；
Fig. 4, Fig. 5 are the machine envelope seat stereoscopic schematic diagram of the embodiment of the present invention one, show different direction；
Fig. 6, Fig. 7 are rotating seat stereoscopic schematic diagram of the present invention, show different direction respectively；
Fig. 8, Fig. 9 are rotating ring stereoscopic schematic diagram of the present invention, show different direction respectively；
Figure 10, Figure 11 are stationary seat stereoscopic schematic diagram of the present invention, show different direction respectively；
Figure 12, Figure 13 are stationary ring stereoscopic schematic diagram of the present invention, show different direction respectively；
Figure 14, Figure 15 are axle sleeve stereoscopic schematic diagram of the present invention, show different direction respectively；
The two blade impeller schematic front view that Figure 16 is adapted to for the present invention；
The two blade impeller diagrammatic cross-section that Figure 17 is adapted to for the present invention；
Figure 18 is uniaxial shaft sealer the schematic diagram of the section structure of the embodiment of the present invention two without cooling system impeller pump；
Figure 19 is that the uniaxial shaft sealer cross-section structure that the embodiment of the present invention three seals seat fission impeller pump with cooling system machine shows
It is intended to；
Figure 20 is that the uniaxial shaft sealer cross-section structure that the embodiment of the present invention four seals seat fission impeller pump without cooling system machine shows
It is intended to；
Figure 21 is the uniaxial shaft sealer and pump housing section that the embodiment of the present invention three seals seat fission impeller pump with cooling system machine
Structural schematic diagram；
Figure 22 is the twin shaft shaft sealer and pump housing section that the embodiment of the present invention three seals seat fission impeller pump with cooling system machine
Structural schematic diagram.
Specific embodiment
Below with the specific embodiment that the present invention will be described in detail shown in Fig. 1 to Figure 22.For the convenience of description, by sealing
Device towards the side in impeller pump be referred to as pump inside, towards impeller pump outside side be referred to as pump outside.
Shaft sealer of the present invention is primarily adapted for use in impeller pump, and usual this impeller pump includes the pump housing 7, as interaction rotor
2 impellers 23 be located in the pump housing 7, respectively corresponding impeller 23 is fixed connects for two parallel axis 4 of synchronized case output
It connects；Impeller 23 is usually twayblade or three blades, also there is single blade, quaterfoil, five blades.Shaft sealer of the present invention is especially
Suitable for the impeller pump for conveying various fluid foods.
Embodiment one
A kind of impeller pump, as shown in Figure 1 and Figure 2, the axis 1 of impeller pump are fixedly connected with the impeller 2 as rotor, as mutual turn
2 impellers (23) of son are located in the pump housing (7), the respective corresponding impeller of two parallel axis (4) of synchronized case output
(23) it is fixedly connected.The shaft sealer of the impeller pump, as shown in figure 3, include that machine seals seat (1), stationary seat (2), stationary ring (3),
The rotating seat (5) rotated with axis (4) and the rotating ring (6) being driven by it, are sleeved on outside axis (4).Machine seals seat such as Fig. 4, Fig. 5 institute
Show, stationary seat is as shown in Figure 10, Figure 11, and stationary ring is as shown in Figure 12 and Figure 13, and rotating seat is as shown in Figure 6, Figure 7, rotating ring such as Fig. 8, figure
Shown in 9.Machine envelope seat (1) is sleeved on outer and is fixedly connected with the pump housing (7), and machine envelope seat (1) inner cavity includes the object for allowing material to enter
Material section and the seal section for not allowing material to enter, the internal diameter of material section are greater than the internal diameter of seal section.Stationary seat (2) pump in lateral edge its
2 convex ribs (8) are at least arranged in inner wall circumference, and corresponding recess (9) is arranged along its lateral wall circumference in stationary ring (3), rotating seat (5)
It pumping outer its inner wall circumference of lateral edge and 2 convex ribs (8) is at least set, corresponding recess (9) is arranged along its lateral wall circumference in rotating ring (6),
Pine is formed between each convex ribs (8) and recess (9) to match；Convex ribs (8) are usually advisable with recess (9) with being arranged 4.Rotating seat (5) moves
Ring (6), stationary ring (3), stationary seat (2) seal seat (1) inner cavity material section in machine and laterally pump outside successively adhesive fabric from pumping along axis (4)
It sets, being formed between machine envelope seat (1) and rotating ring (6), stationary ring (3) allows material to enter toroidal cavity (10), and it is close that machine seals seat (1) inner cavity
Seal section setting compression spring (11), the recess (9) of rotating ring (6) and stationary ring (3) is only opened up in its segment thickness, and rotating ring (6) and
The rest part thickness of stationary ring (3) keeps former annulus shape；Rotating ring (6) and contact surface and stationary ring (3) contact surface it is mutually tight
Patch.
As shown in figure 3, machine, which seals at the gap between seat (1) and stationary seat (2), is arranged the first O-ring (12), machine seals seat
(1) the second O-ring (13) are set at the gap between the pump housing (7), the is arranged at the gap between rotating seat (5) and axis (4)
The 4th O-ring (15), stationary ring (3) and stationary seat are arranged at the gap between rotating seat (5) and rotating ring (6) for three O-rings (14)
(2) the 5th O-ring (16) is set at the gap between.Make machine envelope seat (1) inner cavity formed allow material enter material section with not
The seal section for allowing material to enter.The 4th O-ring (15), stationary ring (3) and stationary seat (2) between rotating seat (5) and rotating ring (6)
Between the 5th O-ring (16) not only play sealing function, while also playing a part of bumper and absorbing shock.
As shown in figure 3, rotating seat (5) is provided with step ring (17), rotating ring (6) is shelved on step ring (17) outside.In this way, can
Make mutually touch between rotating ring (6) and axis 4, can avoid mutually touching and damage.
As shown in figure 3, machine envelope seat (1) seal section opens up threaded hole (18), threaded hole (18) is at least 2, seals seat along machine
(1) cylinder circumference uniform distribution；Generally, the cylinder along machine envelope seat 3 symmetrically opens up 2 and is sufficient, certainly, along machine envelope seat 3
Cylinder circumference uniform distribution opens up 3,4 can also be with.Each threaded hole (18) is to seal fit system insertion dogbolt (19), stop
The front end of bolt (19) is latch (20).To reach sealing fiting effect, can curl up outside the dogbolt (19) band or
Sealant.It is opened up notch (21) on the outside of the pump of stationary seat (2), the latch (20) of dogbolt (19) front end is inserted in a manner of by pine
Enter in the notch (21) of the stationary seat (2)；Rotating seat (2) connects impeller (23) through at least two trundle (22), trundle (22)
One end close-fitting on impeller (23), the notch (21) that respective numbers are opened up on the inside of the pump of rotating seat (5) is floating for trundle (22)
Dynamic formula insertion.Generally, it symmetrically opens up 2 pin holes (24) on the outside of the pump on impeller (23) to be sufficient, such as Figure 16, Tu17Suo
Show, 2 pin holes (24) in wherein one end difference close-fitting insertion impeller (23) of 2 trundles (22)；As shown in Figure 6, Figure 7,
2 notches (21) are also symmetrically opened up for trundle (22) floating type insertion on the inside of the pump of rotating seat (5).
As shown in figure 3, machine envelope seat (1) bore seal section setting check ring (25), which is in
Angle square shape has sleeve part (25A) and retaining ring portion (25B), the sleeve part of the check ring (25) as shown in Figure 14, Figure 15
(25A) is sleeved on axis (4), and compression spring (11) is the single biography being sleeved on outside the sleeve part (25A) of check ring (25)
The big spring or waveform spring of system；Alternatively, compression spring (11) is uniformly distributed for sleeve part (25A) excircle along check ring (25)
Multiple little springs；The both ends of compression spring (11) be stuck in stationary seat (2) and check ring (25) retaining ring portion (25B) it
Between, it also sets up spring washer (31) and is padded between stationary seat (2) and the retaining ring portion (25B) of check ring (25).Spring catch is set
Circle (25) can effectively avoid the both ends of compression spring (11) from touching axis and may abrade axis surface.
As shown in figure 3, machine envelope seat (1) circumferential wall offers coolant liquid manhole appendix (26), machine seals configuration cooling outside seat (1)
Fluid circulation；Seal section of the coolant liquid by machine envelope seat (1) cools down machine envelope with the external world's circulation when use.In order to prevent
Coolant liquid leaks, and machine seals seat (1) pump outside and coolant liquid Fang Guo mechanism is arranged.Coolant liquid Fang Guo mechanism can be arranged such: axis (4) exists
The seal section that machine seals seat (1) is set with axle sleeve (27), and axle sleeve (27) is fixedly mounted on axis (4) outer surface through limit screw, machine envelope
Seat (1) outer end setting oil seal washer (28), the oil seal washer (28) are sleeved on outside axle sleeve (27), and machine seals on the outside of the seal section of seat (1)
Oil seal washer (28) are pushed down in setting pressing plate (29), which is fixedly mounted on the outside of the seal section of machine envelope seat (1) through bolt, axis
It covers and the 6th O-ring (30) is set between (27) and axis (4).
As shown in Fig. 3 or Fig. 4, Fig. 5, it is an entirety that machine, which seals seat (1), and machine, which seals, is arranged flange end on the inside of the pump of seat (1)
(32), along flange end (32), circumference opens up multiple connecting holes (33), through being fixedly connected on the outside of multiple bolts and the pump housing (7)；Machine
The flange end (32) of envelope seat (1) opens up annular groove (34), is embedded in the second O-ring (13) in the annular groove (34).
When one rotor pump shaft sealing device of the present embodiment assembles, shaft sealer associated components can be directly in the pump housing (7)
It successively installs in outside.
Embodiment two
As shown in figure 18, the present embodiment two and the difference of embodiment one is: machine seals outside seat (1) without configuration coolant liquid cyclic system
System.In this way, machine envelope seat (1) circumferential wall does not have to open up coolant liquid manhole appendix (26), without setting coolant liquid Fang Guo mechanism.It is other
Continue to use the scheme of embodiment one.When two rotor pump shaft sealing device of the present embodiment assembles, shaft sealer associated components
Directly successively installed on the outside of the pump housing (7).
Embodiment three
As shown in figure 19, the present embodiment three and the difference of embodiment one is: by machine envelope seat (1) material section and seal section split settings
It seals front stall (1A) and machine for machine to be honored as a queen seat (1B), machine envelope seat (1) is to seal front stall (1A) and machine seat (1B) of being honored as a queen by machine to assemble
Component, machine seal front stall (1A) pump on the inside of be arranged flange end (32), open up multiple connecting holes along its flange end (32) circumference
(33), the inner cavity of the pump housing (7) opens up flange installation cavity, and the flange end (32) that machine seals front stall (1A) is embedded in flange installation cavity, from pump
Machine envelope seat (1) is fixedly connected by the inner cavity of body (7) through multiple bolts with the pump housing (7)；Second O-ring (13) setting seals front stall in machine
Between the flange end (32) and the pump housing (7) of (1A).Its wall thickness circumference of the outer lateral edge of the pump of machine envelope front stall (1A) opens up multiple threaded holes
(18)；Machine be honored as a queen seat (1B) pump on the inside of be also provided with flange end (32), open up multiple connecting holes along its flange end (32) circumference
(33), machine envelope front stall (1A) and machine seat (1B) of being honored as a queen are fixedly connected through multiple bolts；Machine envelope front stall (1A) and machine are honored as a queen seat
7th O-ring (35) is set between (1B).Other schemes for continuing to use embodiment one.The uniaxial shaft sealer of the present embodiment three cuts open
Face structure is as shown in figure 21, and the uniaxial shaft sealer of the present embodiment three and pump housing cross-section structure are as shown in figure 21, the present embodiment three
Twin shaft shaft sealer and pump housing cross-section structure are as shown in figure 22.When the present embodiment tri-rotor pump shaft sealer assembles, machine envelope
Front stall (1A) need to be installed from the pump housing (7) Inside To Outside, and other components directly can be installed successively on the outside of the pump housing (7).This reality
The machine sealing for applying example can be installed from pump body, and when changing machine sealing does not just have to the inlet and outlet pipeline of disassembly pump, be rotor
The maintenance of pump user is brought conveniently.
Example IV
As shown in figure 20, the present embodiment three and the difference of embodiment one is: machine seals outside seat (1) without configuration coolant liquid cyclic system
System.In this way, machine envelope seat (1) circumferential wall does not have to open up coolant liquid manhole appendix (26), without setting coolant liquid Fang Guo mechanism.It is other
Continue to use the scheme of embodiment three.When the present embodiment tri-rotor pump shaft sealer assembles, machine seals front stall (1A) need to be from the pump housing (7)
Inside To Outside installation, other components directly can be installed successively on the outside of the pump housing (7).The machine sealing of the present embodiment can be from the pump housing
Inside is installed, and when changing machine sealing does not just have to the inlet and outlet pipeline of disassembly pump, is brought for the maintenance of impeller pump user
Convenience.
Claims (10)
1. a kind of rotor pump shaft sealing device, including machine seal seat (1), stationary seat (2), stationary ring (3), the rotating ring rotated with axis (4)
Seat (5) and the rotating ring (6) that is driven by it are sleeved on outside axis (4), machine envelope seat (1) be sleeved on it is outer and with the pump housing (7) are fixed connects
It connects, machine envelope seat (1) inner cavity includes the material section for allowing material to enter and the seal section for not allowing material entrance, the internal diameter of material section
Greater than the internal diameter of seal section；2 convex ribs (8), the stationary ring is at least arranged in its inner wall circumference of lateral edge in stationary seat (2) pump
(3) corresponding recess (9) is set along its lateral wall circumference, its inner wall circumference of the outer lateral edge of pump of the rotating seat (5) is at least arranged 2
Corresponding recess (9), shape between each convex ribs (8) and recess (9) is arranged along its lateral wall circumference in a convex ribs (8), the rotating ring (6)
Cheng Song matches；It is characterized in that, the rotating seat (5), rotating ring (6), stationary ring (3), stationary seat (2) seal seat (1) inner cavity material in machine
Along axis (4), from interior lateral pump outside is pumped, successively fitting arranges that machine, which seals to be formed between seat (1) and rotating ring (6), stationary ring (3), to be allowed to section
Material enters toroidal cavity (10), and machine seals seat (1) bore seal section and compression spring (11) are arranged, the rotating ring (6) and stationary ring (3)
Recess (9) only opened up in its segment thickness, and the rest part thickness of the rotating ring (6) and stationary ring (3) keeps former circular ring shape
Shape；The contact surface of the rotating ring (6) is mutually close to the contact surface of stationary ring (3).
2. shaft sealer as described in claim 1, which is characterized in that be arranged between machine envelope seat (1) and stationary seat (2)
First O-ring (12) is arranged the second O-ring (13) between machine envelope seat (1) and the pump housing (7), the rotating seat (5) and axis (4) it
Between be arranged third O-ring (14), between the rotating seat (5) and rotating ring (6) be arranged the 4th O-ring (15), the stationary ring (3) and
5th O-ring (16) is set between stationary seat (2).
3. shaft sealer as claimed in claim 2, which is characterized in that the rotating seat (5) is provided with step ring (17), moves
Ring (6) is shelved on step ring (17) outside.
4. shaft sealer as claimed in claim 2, which is characterized in that described machine envelope seat (1) seal section opens up threaded hole
(18), the threaded hole (18) is at least 2, and along the cylinder circumference uniform distribution of machine envelope seat (1), each threaded hole (18) is to seal
Fit system is inserted into dogbolt (19), and the front end of dogbolt (19) is latch (20)；On the outside of the pump of the stationary seat (2)
It opens up notch (21), the latch (20) of dogbolt (19) front end is inserted into the notch (21) of the stationary seat (2) in such a way that pine is matched
In；The rotating seat (2) connects impeller (23) through at least two trundle (22), and one end close-fitting of the trundle (22) is in leaf
It takes turns on (23), opens up the notch (21) of respective numbers for trundle (22) floating type insertion on the inside of the pump of the rotating seat (5).
5. shaft sealer as claimed in claim, which is characterized in that symmetrically open up 2 on the outside of the pump on the impeller (23)
Wherein one end difference close-fitting of pin hole (24), 2 trundles (22) is inserted into 2 pin holes (24) on the impeller (23), described
2 notches (21) are also symmetrically opened up for trundle (22) floating type insertion on the inside of the pump of rotating seat (5).
6. shaft sealer as claimed in claim, which is characterized in that spring catch is arranged in machine envelope seat (1) the bore seal section
It encloses (25), which is in angle square shape, has sleeve part (25A) and retaining ring portion (25B), the check ring
(25) sleeve part (25A) is sleeved on axis (4), and the compression spring (11) is the sleeve part for being sleeved on check ring (25)
Single traditional big spring or waveform spring outside (25A)；Alternatively, the compression spring (11) is along check ring (25)
The uniformly distributed multiple little springs of sleeve part (25A) excircle；The both ends of the compression spring (11) are stuck in stationary seat (2) and bullet
Between the retaining ring portion (25B) of spring retaining ring (25), the gear that spring washer (31) is padded on stationary seat (2) Yu check ring (25) is also set up
Between circle portion (25B).
7. shaft sealer as claimed in claim, which is characterized in that machine envelope seat (1) circumferential wall offer coolant liquid into
Portal (26), configures coolant circulation system outside machine envelope seat (1)；Seal section suit of the axis (4) in machine envelope seat (1)
Axle sleeve (27), axle sleeve (27) are fixedly mounted on axis (4) outer surface through limit screw, and oil sealing is arranged in machine envelope seat (1) outer end
It encloses (28), which is sleeved on outside axle sleeve (27), and setting pressing plate (29) is pressed on the outside of the seal section of machine envelope seat (1)
Firmly oil seal washer (28), the pressing plate (29) are fixedly mounted on the outside of the seal section of machine envelope seat (1) through bolt, the axle sleeve (27)
6th O-ring (30) is set between axis (4).
8. shaft sealer as claimed in claim 2, which is characterized in that machine envelope seat (1) is an entirety, and machine seals seat
(1) flange end (32) are set on the inside of pump, circumference opens up multiple connecting holes (33) along flange end (32), through multiple bolts and the pump housing
(7) it is fixedly connected on the outside of；The flange end (32) of machine envelope seat (1) opens up annular groove (34), and institute is embedded in the annular groove (34)
State the second O-ring (13).
9. shaft sealer as claimed in claim 2, which is characterized in that by machine envelope seat (1) material section and seal section point
Body is set as machine envelope front stall (1A) and machine is honored as a queen seat (1B), and machine envelope seat (1) is seat of being honored as a queen by machine envelope front stall (1A) and machine
The component that (1B) assembles, machine, which seals on the inside of the pump of front stall (1A), is arranged flange end (32), opens up along its flange end (32) circumference
Multiple connecting holes (33), the inner cavity of the pump housing (7) open up flange installation cavity, and the flange end (32) that machine seals front stall (1A) is embedded in institute
Flange installation cavity is stated, is fixedly connected with machine envelope seat (1) with the pump housing (7) from the inner cavity of the pump housing (7) through multiple bolts；2nd O
Shape circle (13) setting is between the flange end (32) and the pump housing (7) of machine envelope front stall (1A).
10. shaft sealer as claimed in claim 2, which is characterized in that its wall of the outer lateral edge of pump of machine envelope front stall (1A)
Thick circumference opens up multiple threaded holes (18)；The machine be honored as a queen seat (1B) pump on the inside of be also provided with flange end (32), along its flange end
(32) circumference opens up multiple connecting holes (33), and machine envelope front stall (1A) and machine be honored as a queen through multiple bolts, and seat (1B) is fixed to be connected
It connects；Machine envelope front stall (1A) and machine are honored as a queen the 7th O-ring (35) of setting between seat (1B).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811510136.1A CN109386462B (en) | 2018-12-11 | 2018-12-11 | Rotor pump shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811510136.1A CN109386462B (en) | 2018-12-11 | 2018-12-11 | Rotor pump shaft sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109386462A true CN109386462A (en) | 2019-02-26 |
| CN109386462B CN109386462B (en) | 2024-06-18 |
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ID=65429278
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811510136.1A Active CN109386462B (en) | 2018-12-11 | 2018-12-11 | Rotor pump shaft sealing device |
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| Country | Link |
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| CN (1) | CN109386462B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH03102659U (en) * | 1990-02-07 | 1991-10-25 | ||
| CN204805542U (en) * | 2015-06-17 | 2015-11-25 | 宁波东联密封件有限公司 | Mechanical tighness system |
| CN205064850U (en) * | 2015-10-17 | 2016-03-02 | 江苏创进泵阀制造有限公司 | Mechanical sealing device for pump |
| CN205805997U (en) * | 2016-05-26 | 2016-12-14 | 大唐国际发电股份有限公司张家口发电厂 | Pumps for hot water supply net is without flushing water mechanically-sealing apparatus |
| CN107061266A (en) * | 2017-05-22 | 2017-08-18 | 宁波邦威泵业有限公司 | Impeller pump and its shaft sealer |
| CN108843615A (en) * | 2018-07-23 | 2018-11-20 | 余姚市华泰邦威泵业有限公司 | rotor pump shaft sealing device |
| CN209469577U (en) * | 2018-12-11 | 2019-10-08 | 余姚市华泰邦威泵业有限公司 | Rotor pump shaft sealing device |
-
2018
- 2018-12-11 CN CN201811510136.1A patent/CN109386462B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03102659U (en) * | 1990-02-07 | 1991-10-25 | ||
| CN204805542U (en) * | 2015-06-17 | 2015-11-25 | 宁波东联密封件有限公司 | Mechanical tighness system |
| CN205064850U (en) * | 2015-10-17 | 2016-03-02 | 江苏创进泵阀制造有限公司 | Mechanical sealing device for pump |
| CN205805997U (en) * | 2016-05-26 | 2016-12-14 | 大唐国际发电股份有限公司张家口发电厂 | Pumps for hot water supply net is without flushing water mechanically-sealing apparatus |
| CN107061266A (en) * | 2017-05-22 | 2017-08-18 | 宁波邦威泵业有限公司 | Impeller pump and its shaft sealer |
| CN108843615A (en) * | 2018-07-23 | 2018-11-20 | 余姚市华泰邦威泵业有限公司 | rotor pump shaft sealing device |
| CN209469577U (en) * | 2018-12-11 | 2019-10-08 | 余姚市华泰邦威泵业有限公司 | Rotor pump shaft sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109386462B (en) | 2024-06-18 |
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Country or region after: China Address after: 315414 Luojiang village, Hemudu Town, Yuyao City, Ningbo City, Zhejiang Province Applicant after: Zhejiang Huatai Bangwei Pump Co.,Ltd. Address before: 315414 Bangwei Pump Industry Company, Luojiang Industrial Zone, Hemudu Town, Yuyao City, Ningbo City, Zhejiang Province Applicant before: YUYAO HUATAI BANGWEI PUMP INDUSTRY Co.,Ltd. Country or region before: China |
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