CN109404329A - For positioning the structure of non-equilibrium bulk type mechanical seal and axle sleeve in double entry pump - Google Patents
For positioning the structure of non-equilibrium bulk type mechanical seal and axle sleeve in double entry pump Download PDFInfo
- Publication number
- CN109404329A CN109404329A CN201811590533.4A CN201811590533A CN109404329A CN 109404329 A CN109404329 A CN 109404329A CN 201811590533 A CN201811590533 A CN 201811590533A CN 109404329 A CN109404329 A CN 109404329A
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- annular groove
- positioning
- mechanical seal
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/006—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps double suction pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses the structures for positioning non-equilibrium bulk type mechanical seal and axle sleeve in double entry pump, including axis and pump case, axis is equipped with machine and seals axle sleeve, there is annular groove in machine envelope axle sleeve one end, there is O-ring in annular groove, machine envelope axle sleeve is fixed on axis by transmission ring attachment screw, sealing gland passes through stud, nut is connected with pump case, an annular groove is opened on the face that sealing gland is contacted with pump case, annular groove is provided with sealing ring, the sealing gland back side is provided with ring screw hole, positioning plate is fastened by bolt thereon, open an annular groove in machine envelope sleeve outer circle column surface, the sealing gland back side is provided with pin hole, pass through finger setting machine Feng Jinghuan.The time required to shortening the position for finding axle sleeve accurately, and without dismantling pump cover, the production problem stopped over by replacement mechanical seal and axle sleeve is substantially increased.
Description
Technical field
The present invention relates to middle-opening pump technical fields, and in particular to a kind of novel for positioning non-equilibrium bulk type in double entry pump
The structure of mechanical seal and axle sleeve.
Background technique
For general middle-opening pump in conveying high-pressure power media, vulnerable part such as mechanical seal and axle sleeve equivalent life period are shorter,
It need to often replace.For integrated mechanical sealing, because the factors such as expensive, client often do not have to, and preferred bulk type machine
Tool sealing.But it in maintenance replacement mechanical seal and axle sleeve, needs to re-start axle sleeve positioning.Common method is to dismantle pump
Lid, looks for again to benchmark and carries out new positioning to axle sleeve, and the influence for being worn and corroding with the components of media contact,
Benchmark is often not allowed, in addition manual measurement equal error, new axle sleeve is difficult accurate positioning, to need through extraneous means back and forth
Relocate, such method be not it is not cumbersome, axle sleeve positioning will definitely not be reduced to machine envelope service life.
Summary of the invention:
In view of the deficiencies of the prior art, the present invention provides a kind of novel for positioning non-equilibrium bulk type machine in double entry pump
The structure of tool sealing and axle sleeve, makes when re-replacing axle sleeve, can quickly and accurately find the position of axle sleeve accurately.
In order to achieve the above object, the present invention is achieved by the following technical programs:
For positioning the structure of non-equilibrium bulk type mechanical seal and axle sleeve, including axis (1) and pump case (2) in double entry pump,
Axis (1) is equipped with machine envelope axle sleeve (4), which is characterized in that there is annular groove in machine envelope axle sleeve (4) one end, has O in annular groove
Type circle (3), machine envelope axle sleeve (4) are fixed on axis (1) by transmission ring (12) attachment screw (11), and sealing gland (9) passes through spiral shell
Column (15), nut (16) are connected with pump case, open an annular groove on the face that sealing gland (9) is contacted with pump case, in annular groove
Equipped with sealing ring (6), sealing gland (9) back side is provided with ring screw hole, is fastened thereon by bolt positioning plate (10), machine envelope
Axle sleeve (4) outer cylinder surface opens an annular groove, and sealing gland (9) back side is provided with pin hole, seals stationary ring by pin (7) localization machine.
It is clearance fit between machine envelope axle sleeve (4) and axis (1), is between machine envelope axle sleeve (4) and mechanical seal (5)
Interference fit, machine sealed cover (4) is interference fit between seam allowance and pump case, to improve precision.
There are 8 screw holes to be arranged symmetrically on transmission ring (12) in a ring, there are 4 screw holes in a ring in machine envelope axle sleeve (4)
It is arranged symmetrically, wherein there are 4 screw holes to connect on transmission ring (4) with machine envelope axle sleeve, in addition 4 screw holes and axis connection, mutually
Staggeredly, uniform force.
Installation includes the following steps: that S1. loads onto O` type circle (3) in machine envelope axle sleeve (4), on sealing gland (8) successively
O-ring (6), positioning plate (9), pin (7) are loaded onto, and positioning plate (9) are fixed (preload) with bolt (10)；
S2. by machine envelope axle sleeve (4) on axis (1), by mechanical seal (5) in machine envelope axle sleeve (4), then will be entire close
Sealed cover component by in pump case (2) mating connection；
S3. (9) 4 insertion machines of positioning plate are sealed in the annular groove on axle sleeve (4), and machine envelope axle sleeve (4) is pulled outwardly
Another end face of the end face and positioning plate (9) that make machine envelope axle sleeve (4) is adjacent to, then tightening gland raises the spiral shell of whole positioning plate
Bolt (10), at this point, the simultaneously tight event in machine envelope axle sleeve (4) by transmission ring (12) again；
S4. the bolt of fastening positioning plate (9) is unclamped, extraction is set the positioning plate in machine envelope axle sleeve (4) annular groove, assembled
At.
The invention has the benefit that
1, through the invention due to using the above structure, have it is structurally reasonable, make in replacement axle sleeve and mechanical seal
It is convenient, fast in journey, accurate.Because new structure production is simple thus, runs smoothly, is easy to use, is easy for installation, to mechanical close
The advantages that envelope and axle sleeve good positioning effect, allows after-sales staff easily to solve the process of replacement mechanical seal and axle sleeve.
2, it the time required to shortening the position for finding axle sleeve accurately, and without dismantling pump cover, substantially increases since replacement is mechanical
The production problem that sealing and axle sleeve are stopped over.
Detailed description of the invention:
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is installation diagram of the invention；
Fig. 2 is that machine of the invention seals the simple schematic diagram of axle sleeve；
In figure: 1, axis, 2, pump case, 3, O-ring, 4, machine envelope axle sleeve, 5, mechanical seal, 6, O-ring, 7, pin, 8, sealing pressure
Lid, 9, positioning plate, 10, bolt, 11, screw, 12, transmission ring, 14, stud, 15, nut.
Specific embodiment:
Following will be combined with the drawings in the embodiments of the present invention, carries out clearly and completely to the technical solution in example of the present invention
Description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
In description of the invention, it should be noted that the orientation of the instructions such as term "vertical", "upper", "lower", "horizontal" or
Person's positional relationship is orientation based on the figure or positional relationship, is merely for convenience of description of the present invention and simplification of the description,
Rather than the device or element of instruction or hint meaning must have a particular orientation, and are constructed and grasped with specific orientation
Make, therefore is not considered as limiting the invention.
In description of the invention, it is also necessary to explanation, unless otherwise specific regulation and limitation, term " setting ", " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection, can be mechanical connection, is also possible to be electrically connected, can be and be directly connected to, and be also possible to be connected by intermediary, can
To be the connection inside two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
Fig. 1 and Fig. 2, for positioning the structure of non-equilibrium bulk type mechanical seal and axle sleeve, including axis 1 and pump in double entry pump
Shell 2, axis 1 are equipped with machine and seal axle sleeve 4, and there is annular groove in the machine envelope 4 one end of axle sleeve, there is O-ring 3 in annular groove, and machine seals axis
Set 4 is fixed on 1 on axis by 12 attachment screw 11 of transmission ring, and sealing gland 9 is connected by stud 15, nut 16 with pump case, close
An annular groove is opened on the face that sealed cover 9 is contacted with pump case, annular groove is provided with sealing ring 6, and 9 back side of sealing gland is provided with ring
Shape threaded hole fastens positioning plate 10 by bolt thereon, and machine envelope 4 outer cylinder surface of axle sleeve opens an annular groove, and sealing gland 9 is carried on the back
Face is provided with pin hole, seals stationary ring by 7 localization machine of pin.
Installation includes the following steps: that S1. loads onto O` type circle 3 on machine envelope axle sleeve 4, successively loads on sealing gland 8 O-shaped
6, positioning plate 9, pin 7 are enclosed, and positioning plate 9 is pre-tightened with bolt 10 is fixed；
S2. by machine envelope axle sleeve 4 on the axis 1, by mechanical seal 5 on machine envelope axle sleeve 4, then by entire sealing gland portion
Part by with pump case 2 be cooperatively connected on；
S3. 94 insertion machines of positioning plate are sealed in the annular groove on axle sleeves 4, and machine envelope axle sleeve 4, which is pulled outwardly, seals machine
One end face of axle sleeve 4 and another end face of positioning plate 9 are adjacent to, then tightening gland raises the bolt 10 of whole positioning plate, at this point,
The simultaneously tight event on machine envelope axle sleeve 4 by transmission ring 12 again；
S4. the bolt of fastening positioning plate 9 is unclamped, the positioning plate in machine envelope 4 annular groove of axle sleeve is set in extraction, and assembly is completed.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. the structure for positioning non-equilibrium bulk type mechanical seal and axle sleeve in double entry pump, including axis (1) and pump case (2), axis
(1) it is equipped with machine envelope axle sleeve (4), which is characterized in that there is annular groove in machine envelope axle sleeve (4) one end, has in annular groove O-shaped
It encloses (3), machine envelope axle sleeve (4) is fixed on axis (1) by transmission ring (12) attachment screw (11), and sealing gland (9) passes through stud
(15), nut (16) is connected with pump case.
2. it is according to claim 1 for positioning the structure of non-equilibrium bulk type mechanical seal and axle sleeve in double entry pump,
It is characterized in that, opening an annular groove on the face that the sealing gland (9) contacts with pump case.
3. it is according to claim 2 for positioning the structure of non-equilibrium bulk type mechanical seal and axle sleeve in double entry pump,
It is characterized in that, the annular groove is provided with sealing ring (6).
4. it is according to claim 1 for positioning the structure of non-equilibrium bulk type mechanical seal and axle sleeve in double entry pump,
It is characterized in that, sealing gland (9) back side is provided with ring screw hole, positioning plate (10) are fastened by bolt thereon.
5. it is according to claim 1 for positioning the structure of non-equilibrium bulk type mechanical seal and axle sleeve in double entry pump,
It is characterized in that, described machine envelope axle sleeve (4) outer cylinder surface opens an annular groove, sealing gland (9) back side is provided with pin hole, passes through pin
(7) localization machine seals stationary ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811590533.4A CN109404329A (en) | 2018-12-25 | 2018-12-25 | For positioning the structure of non-equilibrium bulk type mechanical seal and axle sleeve in double entry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811590533.4A CN109404329A (en) | 2018-12-25 | 2018-12-25 | For positioning the structure of non-equilibrium bulk type mechanical seal and axle sleeve in double entry pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109404329A true CN109404329A (en) | 2019-03-01 |
Family
ID=65461480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811590533.4A Pending CN109404329A (en) | 2018-12-25 | 2018-12-25 | For positioning the structure of non-equilibrium bulk type mechanical seal and axle sleeve in double entry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109404329A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4108569A (en) * | 1975-05-28 | 1978-08-22 | Weir Pumps Limited | Lubricated mechanical seals for pumps |
| CN201225316Y (en) * | 2008-07-18 | 2009-04-22 | 李学庆 | Assembling type mechanical seal apparatus for multi-point flushing desulfurization device |
| CN102116309A (en) * | 2010-12-30 | 2011-07-06 | 上海阿波罗机械股份有限公司 | Mechanical sealing device for centrifugal pump |
| CN102606520A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Mechanical seal for starting water feeding pump |
| CN204900316U (en) * | 2015-07-21 | 2015-12-23 | 成都一通密封有限公司 | Petroleum pump safety auxiliary seal |
-
2018
- 2018-12-25 CN CN201811590533.4A patent/CN109404329A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4108569A (en) * | 1975-05-28 | 1978-08-22 | Weir Pumps Limited | Lubricated mechanical seals for pumps |
| CN201225316Y (en) * | 2008-07-18 | 2009-04-22 | 李学庆 | Assembling type mechanical seal apparatus for multi-point flushing desulfurization device |
| CN102116309A (en) * | 2010-12-30 | 2011-07-06 | 上海阿波罗机械股份有限公司 | Mechanical sealing device for centrifugal pump |
| CN102606520A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Mechanical seal for starting water feeding pump |
| CN204900316U (en) * | 2015-07-21 | 2015-12-23 | 成都一通密封有限公司 | Petroleum pump safety auxiliary seal |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190301 |
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| RJ01 | Rejection of invention patent application after publication |