CN207437427U - A kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide - Google Patents
A kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide Download PDFInfo
- Publication number
- CN207437427U CN207437427U CN201720286534.4U CN201720286534U CN207437427U CN 207437427 U CN207437427 U CN 207437427U CN 201720286534 U CN201720286534 U CN 201720286534U CN 207437427 U CN207437427 U CN 207437427U
- Authority
- CN
- China
- Prior art keywords
- seat
- rotating
- ring
- face
- rotating seat
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide, including drive seat (1), axle sleeve (2), static components and moving ring assembly, the side wall of the rotating ring (5) and rotating seat (6) is equipped with the first circumferential position limiting structure of both /Vs, the side wall of the connecting portion of the rotating seat (6) and drive seat (1) the two is equipped with the second circumferential position limiting structure of both /Vs, the spring (7) is socketed in the outer wall of the junction of rotating ring (5) and drive seat (1), one end of the spring (7) and the step end face of rotating seat (6) outer wall offset, the step end face of the other end and drive seat (1) outer wall offsets.The mechanically-sealing apparatus makes that rotating ring, rotating seat, the structure of drive block are simple, easy to process, the cost of material is low；Make spring that it is stuck by impurity to avoid spring outside the side wall at drive block and drive seat cooperation.
Description
Technical field：
The utility model is related to technical field of mechanical, are specially that a kind of centrifugal multistage pump multiple centrifugal pump is filled with carborundum mechanical seal
It puts.
Background technology：
A kind of vertical punching weldering pump mechanical sealing device of silicon carbide of the application at present, it is desirable to provide it is convenient to install and maintain,
Accurate positioning, and flour milling is not easy contaminated vertical punching weldering pump mechanical sealing device of silicon carbide, including being fixedly connected with pump shaft
Drive seat and the axle sleeve being set on pump shaft and the static components and moving ring assembly that are set on axle sleeve, the stationary ring
Component and moving ring assembly are respectively equipped with competing stationary ring and rotating ring, and the drive seat and moving ring assembly are fixed with axle sleeve
Connection, more than this structure by the way that static components and moving ring assembly are set on axle sleeve, it is and drive seat and moving ring assembly is equal
It is fixedly connected with axle sleeve, realizes that the integration of sealing device is set, make sealing device convenient to install and maintain, accurate positioning, and grind
Face is not easy to be contaminated.
The mechanically-sealing apparatus of above-mentioned this structure finds problems in actual use process for a long time：
1st, since rotating ring is connected with rotating seat using shifting fork structure, although this spline structure has preferable intensity, but rotating ring,
There are multiple convex blocks or groove on rotating seat, cause part processed complex, also increase cost.
2nd, since drive block and rotating seat are also to use shifting fork structure, while drive block passes through vehicle using metal tube
Processing is cut, processing technology is complicated, while material cost is also high.
3rd, spring is mounted in drive block, so causes the impurity in drive block that can not come out, and after long-term accumulation, pole has
Spring may be caused to be blocked and failed by impurity, entire mechanical seal can be made to fail.
A kind of self-balanced mechanical seal is also disclosed in National IP Network, it includes static components and rotating ring group
Part；The moving ring assembly includes rotating ring, dynamic seal ring, spring pad, spring and passes through retaining mechanism and the retainer of axis connection；
The rotating ring right side is bonded with spring pad；The retainer is equipped with spring groove；The both ends of the spring withstands on spring pad respectively
Between spring groove, the circumferential outer surface of the rotating ring is uniformly distributed that there are three plane I；On the left side of the retainer uniformly
There are three convex edges for distribution；The inside of the convex edge is the plane II with plane I cooperations；The plane II is equipped with arc groove；
There is a straight line to lack side on the excircle of the spring pad；The right end of the rotating ring is equipped with inner bore of step；The dynamic seal ring interference
Cooperation is in inner bore of step.
The rotating seat of the mechanical seal of above this structure is driven with rotating ring using three planes outside three circumference, more than
Although structure makes the structure of rotating ring simpler, but there are still following shortcomings：
1st, since four springs are being located in retainer, so cause that impurity is also easily caused to influence spring and fail.
2nd, since the drive seat and drive block of the structure are installed retainer using integral structure, then by retaining mechanism
Onto axis, make the complicated of retainer, it is necessary to process three raised lines and four spring grooves in end face, processed in the inside of raised line
Open slot and bolt hole are processed for plane, in side wall, these cause the complicated of retainer, processed complex
Utility model content：
The technical problems to be solved in the utility model just, is to provide a kind of structure letter for making rotating ring, rotating seat, drive block
It is single, easy to process, the cost of material is low；Spring is made to avoid spring quilt outside the side wall at drive block and drive seat cooperation
The stuck centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide of impurity.
In order to solve the above technical problems, the utility model uses a kind of centrifugal multistage pump multiple centrifugal pump carborundum of following technical scheme
Mechanically-sealing apparatus including the drive seat being fixedly connected with pump shaft and the axle sleeve being set on pump shaft and is set on axle sleeve
Static components and moving ring assembly, the static components include stationary ring and stationary seat, and the stationary ring is located in stationary seat and the two week
To /V, the moving ring assembly includes rotating ring, rotating seat and spring, and the rotating ring is located in rotating seat and the two circumferential direction /V,
The rotating ring seals between the two with rotating seat, and the rotating ring is affixed to form sealing surface with stationary ring always under the action of the spring；
Both the first circumferential position limiting structure of the side wall of the rotating ring and rotating seat equipped with both /Vs, the rotating seat and drive seat
The side wall of connecting portion is equipped with the second circumferential position limiting structure of both /Vs, and the spring is socketed in the connection of rotating ring and drive seat
The outer wall at place, one end of the spring and the step end face of rotating seat outer wall offset, the step end of the other end and drive seat outer wall
Face offsets.
After more than structure, the utility model compared with prior art, has the following advantages and beneficial effect：
1st, since the side wall of the rotating ring and rotating seat is equipped with the first circumferential position limiting structure of both /Vs, i.e., rotating ring is with moving
Ring seat makes the two that can not relatively rotate by the first circumferential position limiting structure of side wall；In addition when processing rotating ring, also only need to process
The side wall of rotating ring in silicon carbide dies shaping, can be molded, and avoid complicated complicated die processing or machine
Tool is processed；And rotating seat uses punch forming, it is simple compared to original powder metallurgy structure, at low cost, and process disposable punching
It is molded, so make the parts machining of rotating ring and rotating seat simple, at low cost.
2nd, since the side wall of the connecting portion of both the rotating seat and drive seat is equipped with the second circumferential limit of both /Vs
Bit architecture, i.e. drive block, by the second circumferential position limiting structure of side wall, make the two that can not relatively rotate with rotating seat；It is driven in processing
During motion block, the side wall of drive block also need to be only processed, in powder metallurgy die shaping, can be molded, is avoided multiple
Miscellaneous mold processing or mechanical processing；And rotating seat is using punch forming, cost simple compared to original powder metallurgy structure
It is low, and disposable punch forming is processed, so make the parts machining of rotating ring and rotating seat simple, at low cost, so make driving
Block is simple, at low cost with rotating seat parts machining.
3rd, since the spring is socketed in the outer wall of the junction of rotating ring and drive seat, outside one end of the spring and rotating ring
The step end face of wall offsets, and the step end face of the other end and drive seat outer wall offsets, and such spring is to be located at rotating ring and drive seat
Outer, in actual use, spring is not easy to be influenced and failed by impurity etc., while is also convenient for when mounted, directly puts on.
As an improvement, the first circumferential position limiting structure that the side wall of the rotating ring and rotating seat is equipped with both /Vs refers to, institute
The periphery wall for stating rotating ring is equipped with one piece or the first plane of polylith, and the end face of the first plane driven torus extends to the other end
Face, one section of endoporus side wall of rotating seat installation rotating ring also is provided with one piece matched with the first plane or polylith second is flat
Face, and the position of first plane and the second plane corresponds after mounting.When processing rotating ring, rotating ring also need to be only processed
Side wall, in silicon carbide dies shaping, can be molded, avoid complicated complicated die processing or machinery plus
Work；And rotating seat uses punch forming, it is simple compared to original powder metallurgy structure, at low cost, and processing disposably strikes out
Type so makes the parts machining of rotating ring and rotating seat simple, at low cost.
As an improvement, the side wall of the connecting portion of both the rotating seat and drive seat second equipped with both /Vs is circumferential
Position limiting structure refers to that the rotating seat is located at is equipped with the 3rd plane, the driving seat with the madial wall of drive seat connecting portion
In being equipped with fourth plane with the lateral wall of rotating seat connecting portion, one end of the rotating seat is socketed in outside one end of drive seat,
And the position of the 3rd plane and fourth plane corresponds after mounting, when processing drive block, also need to only process driving
The side wall of block in powder metallurgy die shaping, can be molded, and avoid complicated mold processing or machinery adds
Work；And rotating seat uses punch forming, it is simple compared to original powder metallurgy structure, at low cost, and processing disposably strikes out
Type so makes rotating ring and rotating seat
As an improvement, the rotating ring with rotating seat is sealed and referred between the two, on the interior step end face of the rotating seat
Equipped with washer, the washer and rotating seat circumferential direction /V, the washer are socketed on axle sleeve, and the end face of the rotating ring is equipped with step
Hole, and sealing ring is equipped in the stepped hole, the both ends of the sealing ring offset respectively with rotating ring and washer, due to the shape of rotating seat
In irregular cycle, the sealing ring on rotating ring is mounted directly in the irregular endoporus of rotating seat, due to the centre bore of rotating seat
Aperture is more than the outer diameter of sealing ring, and the width of the end face of the step in rotating seat is smaller, causes sealing ring can not be with step surface
Directly offseting, this also causes sealing ring that can not play the role of sealing, and after increasing washer, sealing surface is ensure that, so that close
The end face of seal and the end face of washer offset, and ensure that the complete seal face of sealing ring.
As an improvement, the side wall of the washer is equipped with quantity and the one-to-one fourth plane of the first plane, the washer
One-sided Widths be more than rotating seat step surface width, make the side wall circumferential direction /V of washer in drive seat, prevent washer with
Drive seat relatively rotates, so that band washer rotates together when rotating seat rotates, rotating ring, rotating seat and washer and sealing ring one
It rises and rotates, ensure that rotating ring and rotating seat sealing effect.
As an improvement, spacing is equipped between the end face of the washer and the end face of rotating ring, so that the end face of sealing ring
It offsets with the end face of washer, the inner bottom surface of the groove of other end and rotating ring offsets, and ensure that the sealing effect of sealing ring.
As an improvement, spacing is equipped between the lateral wall of the rotating ring and the madial wall of rotating seat, and the rotating seat
Side wall is equipped with multiple through holes, can so be passed through into rotating ring and the impurity in rotating seat by gap between the two, finally
It is thrown away by through hole.
As an improvement, gap, the washer and rotating ring between the lateral wall of the rotating ring and the madial wall of rotating seat it
Between gap and all through holes between connect, internal impurity can be made to be thrown away from gap and through hole, avoid accumulation.
As an improvement, the utility model it further include gland, the outer end face of the stationary seat is equipped with a groove, the groove
It has been embedded in an annular gasket made of teflon material, one end end face of the annular gasket and the groove floor of stationary seat
It offsets, the end face of the other end face and gland offsets, and so increases gland and through being exchanged with wearability and lubricity.
Description of the drawings
Attached drawing 1 is a kind of structure diagram of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide of the utility model.
Attached drawing 2 is the cross-sectional view of the rotating ring of the utility model.
Attached drawing 3 is the positive structure schematic of the rotating ring of the utility model.
Attached drawing 4 is the cross-sectional view of the rotating seat of the utility model.
Attached drawing 5 is the positive structure schematic of the rotating seat of the utility model.
Attached drawing 6 is the cross-sectional view of the drive seat of the utility model.
Attached drawing 7 is the positive structure schematic of the drive seat of the utility model.
The positive structure schematic of the washer of 8 the utility model of attached drawing.
As shown in the figure:1st, drive seat, 2, axle sleeve, 3, stationary ring, 4, stationary seat, 5, rotating ring, the 5.1, first plane, 6, rotating ring
Seat, the 6.1, second plane, the 6.2, the 3rd plane, 6.3, through hole, 7, spring, 8, washer, 9, sealing ring, 10, annular gasket, 11,
Gland.
Specific embodiment：
The utility model is described in further detail below by specific embodiment, but the utility model be not limited solely to
Lower embodiment.
As shown in figures 1-8, a kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide of the utility model, including with pump shaft
The drive seat 1 and the axle sleeve 2 being set on pump shaft and the static components and moving ring assembly that are set on axle sleeve 2 being fixedly connected,
The static components include stationary ring 3 and stationary seat 4, and the stationary ring 3 is located in stationary seat 4 and the two circumferential direction /V, i.e. the two are logical
The circumferential /V of both Planar realizations of side wall is crossed, i.e., the two is circumferentially fixed on axle sleeve 2, can not relatively rotate.The rotating ring
Component includes rotating ring 5, rotating seat 6 and spring 7, and the rotating ring 5 is located in rotating seat 6 and the two circumferential direction /V, the rotating ring 5 with
Rotating seat 6 seals between the two, and the rotating ring 5 is affixed to form sealing surface with stationary ring 3 always under the action of spring 7；It is described dynamic
The side wall of first circumferential position limiting structure of the side wall of ring 5 and rotating seat 6 equipped with both /Vs, the rotating ring 5 and rotating seat 6 is set
The the first circumferential position limiting structure for having both /Vs refers to that the periphery wall of the rotating ring 5 is equipped with four piece of first plane 5.1, and
It is distributed along the even circumferential of rotating ring 5, the end face of 5.1 driven torus 5 of the first plane extends to other end, the rotating seat 6
The endoporus side wall for installing this section of rotating ring 5 also is provided with the second plane 6.1 to match with the first plane 5.1, that is, on rotating seat 6
Four piece of second plane 6.1 also is provided with, and after rotating ring 5 is embedded into the hole of rotating seat 6, the first plane 5.1 and the second plane 6.1 are positions
Put opposite one by one, synchronous drive rotating ring 5 rotates when so that the rotating seat 6 is rotated, certain first plane, 5.1 and second plane
6.1 quantity can also be one piece, two pieces, three pieces etc., and circumferentially be uniformly distributed.
The side wall of the connecting portion of 1 the two of the rotating seat 6 and drive seat is equipped with the second circumferential /V knot of both /Vs
Structure, the second circumferential position limiting structure of the side wall of connecting portion equipped with both /Vs of 1 the two of the rotating seat 6 and drive seat are
Refer to, the rotating seat 6 is located at is equipped with one piece or the 3rd plane 6.2 of polylith, the drive with the madial wall of 1 connecting portion of drive seat
Dynamic seat 1 is located at is equipped with fourth plane 1.1 with the lateral wall of 6 connecting portion of rotating seat, and one end of the rotating seat 6 is socketed in driving
Outside one end of seat 1, and the position of the 3rd plane 6.2 and fourth plane 1.1 corresponds after mounting.The rotating seat 6
Four piece of the 3rd plane 6.2, the quantity of corresponding fourth plane 1.1 are equipped with positioned at the madial wall of 1 connecting portion of drive seat
For four pieces, and four piece of the 3rd plane 6.2 is distributed along the even circumferential of rotating seat 6.Certain 3rd plane 6.2 and fourth plane
1.1 quantity can also be one piece, two pieces, three pieces etc., and circumferentially be uniformly distributed.
The spring 7 is socketed in the outer wall of the junction of rotating seat 6 and drive seat 1, one end of the spring 7 and rotating seat
The step end face of 6 outer walls offsets, and the step end face of the other end and 1 outer wall of drive seat offsets.The spring 7 is common spiral bullet
Spring, spring 7 are socketed in outside rotating seat 6, and an inner wall part for spring 7 is contacted with the outer wall of rotating seat 6, another part and drive seat
Spacing is equipped between 1 outer wall, the width of the step end face of 6 outer wall of rotating seat just offsets for one end of spring 7, drive seat 1
The width of the step end face of outer wall just offsets for the other end of spring 7.
The rotating ring 5 seals between the two with rotating seat 6 to be referred to, the interior step end face of the rotating seat 6 is equipped with pad
Circle 8, the washer 8 are socketed in the circumferential /V of rotating seat 6, the washer 8 on axle sleeve 2, and the end face of the rotating ring 5 is equipped with step
Hole, and sealing ring 9 is equipped in the stepped hole, the both ends of the sealing ring 9 offset respectively with rotating ring 5 and washer 8.Due to rotating seat 6
Shape in irregular cycle, the sealing ring 9 on rotating ring 5 is mounted directly in the irregular endoporus of rotating seat 6, due to rotating ring
The centre bore aperture of seat 6 is more than the outer diameter of sealing ring 9, and the width of the end face of the step in rotating seat 6 is smaller, causes to seal
Circle 9 can not directly offset with step surface, this also causes sealing ring 9 that can not play the role of sealing, and after increasing washer 8, ensure
Sealing surface, so that the end face of sealing ring 9 and the end face of washer 8 offset, ensure that the complete seal face of sealing ring 9.
The side wall of the washer 8 is equipped with quantity and 5.1 one-to-one fourth plane 8.1 of the first plane, the present embodiment
Fourth plane 8.1 is four pieces, and is distributed along the even circumferential of washer 8, and the One-sided Widths of the washer 8 are more than the platform of rotating seat 6
The width of terrace.Spacing is equipped between the end face of the washer 8 and the end face of rotating ring 5, so that the end face and pad of sealing ring 9
The end face of circle 8 offsets, and other end and the inner bottom surface of the groove of rotating ring 5 offset, and ensure that the sealing effect of sealing ring 9.
Spacing is equipped between the lateral wall of the rotating ring 5 and the madial wall of rotating seat 6, and the side wall of the rotating seat 6 is set
There are multiple through holes 6.3.Gap, the washer 8 between the lateral wall of the rotating ring 5 and the madial wall of rotating seat 6 and rotating ring 5 it
Between gap and all through holes 6.3 between connect.Impurity in rotating ring 5 and rotating seat 6 can be by these gaps from logical
Hole 6.3 is thrown away, and avoids accumulation.
With mechanical sealing device of silicon carbide, it further includes gland 11, the stationary ring to a kind of centrifugal multistage pump multiple centrifugal pump of the utility model
The outer end face of seat 4 is equipped with a groove, which has been embedded in annular gasket 10 made of teflon material, the annular
One end end face of gasket 10 and the groove floor of stationary seat 4 offset, and the other end face and the end face of gland 11 offset.
Claims (9)
1. a kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide including the drive seat (1) being fixedly connected with pump shaft and is arranged
Axle sleeve (2) on pump shaft and the static components and moving ring assembly being set on axle sleeve (2), the static components include stationary ring
(3) and stationary seat (4), the stationary ring (3) is located in stationary seat (4) and the two circumferential direction /V, the moving ring assembly include rotating ring
(5), rotating seat (6) and spring (7), the rotating ring (5) is located in rotating seat (6) and the two circumferential direction /V, the rotating ring (5) with
Rotating seat (6) seals between the two, and the rotating ring (5) is affixed to form sealing with stationary ring (3) always under the action of spring (7)
Face；
It is characterized in that：The side wall of the rotating ring (5) and rotating seat (6) is equipped with the first circumferential position limiting structure of both /Vs, institute
The side wall for stating the connecting portion of both rotating seat (6) and drive seat (1) is equipped with the second circumferential position limiting structure of both /Vs, described
Spring (7) is socketed in the outer wall of the junction of rotating ring (5) and drive seat (1), and one end of the spring (7) and rotating seat (6) are outside
The step end face of wall offsets, and the step end face of the other end and drive seat (1) outer wall offsets.
2. a kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide according to claim 1, it is characterised in that：It is described dynamic
The first circumferential position limiting structure that the side wall of ring (5) and rotating seat (6) is equipped with both /Vs refers to, the periphery wall of the rotating ring (5)
One piece or the first plane of polylith (5.1) are equipped with, the end face of the first plane (5.1) driven torus (5) extends to the other end
Face, one section of endoporus side wall of the rotating seat (6) installation rotating ring (5) also are provided with matching with the first plane (5.1) second flat
Face (6.1), and first plane (5.1) and the position of the second plane (6.1) correspond after mounting.
3. a kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide according to claim 1, it is characterised in that：It is described dynamic
The second circumferential position limiting structure that the side wall of the connecting portion of ring seat (6) and drive seat (1) the two is equipped with both /Vs refers to, described
Rotating seat (6) is located at is equipped with one piece or the 3rd plane (6.2) of polylith, the drive with the madial wall of drive seat (1) connecting portion
Dynamic seat (1) is located at is equipped with fourth plane (1.1), an end cap of the rotating seat (6) with the lateral wall of rotating seat (6) connecting portion
It is connected on outside one end of drive seat (1), and the 3rd plane (6.2) and the position one of fourth plane (1.1) are a pair of after mounting
It should.
4. a kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide according to claim 2, it is characterised in that：It is described dynamic
Ring (5) seals between the two with rotating seat (6) to be referred to, the interior step end face of the rotating seat (6) is equipped with washer (8), should
Washer (8) is socketed in the circumferential /V of rotating seat (6), the washer (8) on axle sleeve (2), and the end face of the rotating ring (5) is equipped with platform
Rank hole, and sealing ring (9) is equipped in the stepped hole, the both ends of the sealing ring (9) offset respectively with rotating ring (5) and washer (8).
5. a kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide according to claim 4, it is characterised in that：The pad
The side wall for enclosing (8) is equipped with quantity and the one-to-one fourth plane (8.1) of the first plane (5.1), the unilateral width of the washer (8)
Degree is more than the width of the step surface of rotating seat (6).
6. a kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide according to claim 5, it is characterised in that：The pad
It encloses and spacing is equipped between the end face of (8) and the end face of rotating ring (5).
7. a kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide according to claim 2, it is characterised in that：It is described dynamic
Spacing is equipped between the lateral wall of ring (5) and the madial wall of rotating seat (6), and the side wall of the rotating seat (6) is equipped with multiple lead to
Hole (6.3).
8. a kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide according to claim 4, it is characterised in that：It is described dynamic
Gap between gap, the washer (8) and rotating ring (5) and institute between the lateral wall of ring (5) and the madial wall of rotating seat (6)
It is connected between some through holes (6.3).
9. a kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide according to claim 1, it is characterised in that：It is also wrapped
Gland (11) is included, the outer end face of the stationary seat (4) is equipped with a groove, which has been embedded in one and has been made of teflon material
Annular gasket (10), one end end face of the annular gasket (10) and the groove floor of stationary seat (4) offset, the other end face
It offsets with the end face of gland (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720286534.4U CN207437427U (en) | 2017-03-23 | 2017-03-23 | A kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720286534.4U CN207437427U (en) | 2017-03-23 | 2017-03-23 | A kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437427U true CN207437427U (en) | 2018-06-01 |
Family
ID=62395735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720286534.4U Active CN207437427U (en) | 2017-03-23 | 2017-03-23 | A kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207437427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989052A (en) * | 2017-03-23 | 2017-07-28 | 宁波伏尔肯陶瓷科技有限公司 | A kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide |
-
2017
- 2017-03-23 CN CN201720286534.4U patent/CN207437427U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989052A (en) * | 2017-03-23 | 2017-07-28 | 宁波伏尔肯陶瓷科技有限公司 | A kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106989052A (en) | A kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide | |
| CN207437427U (en) | A kind of centrifugal multistage pump multiple centrifugal pump mechanical sealing device of silicon carbide | |
| CN103982416A (en) | Plunger component and sleeving type closed hollow plunger | |
| CN202946564U (en) | Farmland tillage machine large-torque plow-harrow bearing with stamping seats | |
| CN104712710A (en) | High-performance structure RV reduction machine | |
| CN103722426B (en) | A kind of Bamboo hat type tool magazine structure of vertical car | |
| CN208880221U (en) | A kind of positioning processing device of large size oil sealing | |
| CN204477265U (en) | A kind of reducer input shaft sealing configuration | |
| CN204477305U (en) | A kind of mechanical shaft seal structure | |
| CN204253627U (en) | Waterproof type high-speed precision bearing | |
| CN202946563U (en) | Farmland tillage machine plow-harrow bearing with stamping seats | |
| CN203394841U (en) | Centrifugal type integrating mechanical sealing device | |
| CN205663768U (en) | Bearing with split type holder | |
| CN202118252U (en) | Sealing mechanism of press machine wet clutch | |
| CN204942495U (en) | Disk feeder speed reducer | |
| CN106059167B (en) | A kind of labyrinth seal structure of machine shaft and drive end bearing bracket | |
| CN204921989U (en) | Carborundum mechanical seal device for vacuum pump | |
| CN210208681U (en) | Vertical lathe spindle | |
| CN204458819U (en) | Novel wear resistant silicon nitride ceramics bearing | |
| CN208686644U (en) | A kind of precompressed lost-proof mechanical sealing device of silicon carbide | |
| CN210817521U (en) | Mechanical amplitude-adjustable low-frequency axial vibration drilling device | |
| CN204647310U (en) | A kind of double mechanical rotary sealing mechanism | |
| CN104482050B (en) | With the anti-reverse clamping stopper bearing for filling bearing cage of anti-voussoir | |
| CN203757350U (en) | Oil pump assembly | |
| CN203784284U (en) | Sealing ring with anti-rotation groove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315104 Jin Yuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 666 Patentee after: Ningbo Vulcan Polytron Technologies Inc Address before: 315104 Jin Yuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 666 Patentee before: Ningbo fu'erken Ceramic Technology Co. Ltd. |