CN104165227A - Dismountable rotating shaft lip seal device - Google Patents
Dismountable rotating shaft lip seal device Download PDFInfo
- Publication number
- CN104165227A CN104165227A CN201410369854.7A CN201410369854A CN104165227A CN 104165227 A CN104165227 A CN 104165227A CN 201410369854 A CN201410369854 A CN 201410369854A CN 104165227 A CN104165227 A CN 104165227A
- Authority
- CN
- China
- Prior art keywords
- lip
- sealing lip
- sealing
- shell
- support ring
- 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.)
- Granted
Links
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
Abstract
The invention provides a dismountable rotating shaft lip seal device. The dismountable rotating shaft lip seal device comprises an end cover (12401), a first seal lip (124021), a second seal lip (124022), a third seal lip (124023), a shell (12403), a first supporting ring (12405), a second supporting ring (12404), rubber pads (12406), a spring washer (12408), spring rings (12409), a first O-shaped ring (12410) and a second O-shaped ring (12412). By means of the structure of the first supporting ring and the second supporting ring of the dismountable rotating shaft lip seal device, the pressure bearing areas of the PTFE seal lips are greatly reduced, the pressure bearing capacity of the PTFE seal lips is improved, bi-directional pressure oil seal of the lip seal device can be achieved, and leakage is avoided; in addition, the seal lips of the dismountable rotating shaft lip seal device are formed by turning PTFE tube materials, other parts of the lip seal device are made in a machining mode, no special mold is needed, production cost is greatly lowered, and the dismountable rotating shaft lip seal device is especially suitable for trial manufacturing and small-lot production; if the seal lips are damaged in use, the dismountable rotating shaft lip seal device is dismounted, the damaged seal lips are replaced, other parts can still be used, and use cost is greatly saved.
Description
Technical field
The present invention relates to a kind of seal arrangement, relate in particular to a kind of detachable rotating shaft lip-shaped sealing device, sealing device can be applicable to water, the wet goods hydraulic seal of numerous rotating machineries.
Background technique
Tradition only can realize uniaxial pressure sealing or a side pressure and seal the function of a side dust sealing for the rotary shaft lip seal of rotating machinery fluid sealing, can not carry out the sealing of two-way simultaneous high pressure, for example: application number is 200420022202.8, denomination of invention is the patent of " a kind of rubber combined rotary shaft lip seal ", and application number: 200520106303.8, the patent that denomination of invention is " Teflon labiate sealed ring of rotation axis " all discloses rotary shaft lip seal structure, but these rotary shaft lip seals are skeleton construction, need special mould to enter to produce, when it come to its processing cost of the trial-production of product is higher, if sealing lip lost efficacy in using process, whole rotary shaft lip seal will be discarded, user cost is also very high.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of detachable rotating shaft lip-shaped sealing device is provided, sealing device can be realized bidirection press rotary seal.
For the production complexity of existing rotary shaft lip seal, and processing and too high this defect of user cost, a kind of detachable rotating shaft lip-shaped sealing device invented.
The technological scheme that the present invention proposes is for providing a kind of detachable rotating shaft lip-shaped sealing device, and this lip shape seal device comprises end cap, the first sealing lip, the second sealing lip, the 3rd sealing lip, shell, the first support ring, the second support ring, rubber pad, spring washer, spring ring, an O type circle, the 2nd O type circle); It is characterized in that:
Lip shape seal device left side is provided with end cap, right side is provided with shell, in the space that end cap and shell form, arrange successively from left to right the first sealing lip, the second sealing lip, the 3rd sealing lip, wherein, the first support ring separates the first sealing lip and the second sealing lip, and the second support ring separates the second sealing lip and the 3rd sealing lip;
The first sealing lip lip is towards a left side, the second sealing lip and the 3rd sealing lip lip in the same way, all towards the right side;
The outer circumference of the second support ring offers O type circle groove near the second sealing lip place, and an O type circle is arranged in this O type circle groove;
The outer circumference of the second support ring is provided with oiling groove near the 3rd sealing lip place, and this oiling groove communicates with the oil hole of fitting seat by the oilhole on shell and oil groove;
In the second support ring oiling groove, be also provided with an oilhole, this oilhole leads to the cavity between the second sealing lip and the first sealing lip;
The first sealing lip, the second sealing lip, the 3rd sealing lip lip are compressed by spring ring respectively, thereby ensure the first sealing lip, the second sealing lip, the 3rd sealing lip and running shaft close contact;
Between end cap and the first sealing lip, rubber washer is set, between the second sealing lip and the second support ring, rubber washer is set, between the 3rd sealing lip and housing, rubber washer is set.
Further, end cap and shell are connected and fixed by hex screw and spring washer.
Further, the oil hole by lip shape seal device fitting seat injects lubricant oil between the second sealing lip and the 3rd sealing lip that lip shape seal device two installs in the same way, thereby makes to form oil film between the second sealing lip and running shaft.
Further, be provided with two the 2nd O type circles between lip shape seal device fitting seat and shell, two the 2nd O type circles are arranged in the groove in shell outside.
Further, the present invention also provides a kind of assembly method of detachable rotating shaft lip-shaped sealing device, and it specifically comprises the following steps:
Step 1, an O type circle is put in the O type circle mounting groove of the second support ring;
Step 2, pack successively rubber pad, the 3rd sealing lip, the second support ring that an O type circle is housed, rubber pad, the second sealing lip and the first support ring the inner chamber of shell into, and make each part end face submissive each other;
In this step, the second support ring fits into the cavity of shell, and ensures the oil hole axle center alignment on oil hole and the shell on the second support ring;
Step 3, along end-cover axle to, rubber pad and sealing lip are packed in end cap endoporus successively;
Step 4, adopt socket head screw and spring washer by shell and end-cover axle to together with being linked and packed;
Step 5,3 spring rings are respectively installed on the first sealing lip, the second sealing lip and the 3rd sealing lip (124023);
Step 6, two the 2nd O type circles are respectively charged in two O type circle grooves of shell outer ring;
Step 7, finally by straight pin, be assembled in the straight pin mounting hole of shell outer ring, completed the assembling of detachable rotating shaft lip-shaped sealing device.
The invention has the beneficial effects as follows:
(1) the first support ring of detachable rotating shaft lip-shaped sealing device and the structure of the second support ring have reduced the bearing area of PTFE sealing lip greatly, provide high the bearing capacity of PTFE sealing lip, can realize the sealing of lip shape seal device bidirection press fluid, and ne-leakage;
(2) a cylinder truck of the sealing lip of detachable rotating shaft lip-shaped sealing device employing PTFE is cut and is formed, other component of lip shape seal device also machining form, do not need specialized mould, cost of production reduces greatly, is particularly useful for trial-production and the small lot batch manufacture of lip shape seal device;
(3) after the sealing lip of detachable rotating shaft lip-shaped sealing device lost efficacy, only need to change sealing lip, miscellaneous part does not need to change, and user cost reduces greatly, and changes simple and conveniently, does not need special frock;
(4) oiling groove of detachable rotating shaft lip-shaped sealing device and the structural design of oil hole can be carried out oiling to sealing lip together with centre, make to form oil film between sealing lip and running shaft, thereby improve working life and the sealability of envelope lip, also can be close to by this oil hole observation the sealing situation of inner walls sealing lip.
Brief description of the drawings
Fig. 1 is the use state partial sectional view of existing detachable rotary shaft lip seal;
Fig. 2 is existing detachable rotary shaft lip seal plan view;
Fig. 3 is existing detachable rotary shaft lip seal partial sectional view;
Fig. 4 is existing detachable rotary shaft lip seal partial sectional view;
Fig. 5 is existing detachable rotary shaft lip seal partial sectional view;
Fig. 6 is end cap plan view;
Fig. 7 is end cap partial sectional view;
Fig. 8 is end cap partial sectional view;
Fig. 9 is seal ring lip schematic diagram;
Figure 10 is shell schematic diagram;
Figure 11 is the first support ring schematic diagram;
Figure 12 is the second support ring schematic diagram;
Figure 13 is rubber pad schematic diagram.
Wherein, 1. running shaft, 2. lip shape seal device back-up ring, 3. lip shape seal device fitting seat, 124. detachable rotating shaft lip-shaped sealing devices, 12401. end caps, 12402. sealing lips, 12403. shells, 12,404 first support rings, 12405. second support rings, 12406. rubber pads, 12407. socket head screws, 12408. spring washers, 12409. spring rings, 12410. the one O type circles, 12411. straight pins, 12412. the 2nd O type circles.
Specific embodiments
Below with reference to accompanying drawing 1-13, technological scheme of the present invention is carried out to that detailed description.
As shown in figure 1 to figure 13, the invention provides a kind of detachable rotating shaft lip-shaped sealing device, it mainly comprises end cap 12401, the first sealing lip 124021, the second sealing lip 124022, the 3rd sealing lip 124023, shell 12403, the first support ring 12405, the second support ring 12404, rubber pad 12406, socket head screw 12407, spring washer 12408, spring ring 12409, an O type circle 12410, straight pin 12411, the 2nd O type circle 12412.
As shown in Figure 2, in this lip shape seal device, left side is provided with end cap 12401, right side is provided with shell 12403, end cap 12401 is connected and fixed by hex screw 12407 and spring washer 12408 with shell 12403, in the space that end cap 12401 and shell 12403 form, arrange successively from left to right the first sealing lip 124021, the second sealing lip 124022, the 3rd sealing lip 124023, wherein, the first support ring 12405 separates the first sealing lip 124021 and the second sealing lip 124022, the second support ring 12404 separates the second sealing lip 124022 and the 3rd sealing lip 124023, in order to improve the sealability of device, between end cap 12401 and the first sealing lip 124021, rubber washer 12406 is set, between the second sealing lip 124022 and the second support ring 124504, arrange between rubber washer 12406, the three sealing lips 124023 and housing 12403 rubber washer 12406 is set.
Wherein the first sealing lip 124021 lips are towards a left side, the second sealing lip 124022, the 3rd sealing lip 124023 lips in the same way, all towards the right side.
The outer circumference of the second support ring 12404 offers O type circle groove near the second sealing lip 124022 places, and an O type circle 12410 is arranged in this O type circle groove;
As shown in Figure 5, the outer circumference of the second support ring 12404 is provided with oiling groove near the 3rd sealing lip 124023 places, this oiling groove communicates with the oil hole 4 of lip shape seal device fitting seat 3 by the oilhole on shell 12403 and oil groove, and in the oiling groove of the second support ring 12404, also have an oilhole, oilhole leads to the cavity between the second sealing lip 12404 and the first sealing lip 124021;
The first sealing lip 124021, the second sealing lip 124022, the 3rd sealing lip 124023 lips are compressed by spring ring 12409 respectively, thereby ensure the first sealing lip 124021, the second sealing lip 124022, the 3rd sealing lip 124023 and running shaft 1 close contact.
Mounted lip shape seal device integral installation is in lip shape seal device fitting seat 3, the left side of lip shape seal device fitting seat 3 is by lip shape seal device back-up ring 2 axially locating, on lip shape seal device fitting seat 3, be provided with oil hole 4, oil hole 4 by lip shape seal device fitting seat 3 injects lubricant oil between the second sealing lip 12402 and the 3rd sealing lip 12403 that lip shape seal device two installs in the same way, thereby make to form oil film between the second sealing lip 12402 and running shaft 1, improve the sealability of the second sealing lip 1240212402, also prevent that running shaft from being worn and torn by the second sealing lip 12402, extend its working life.
Between lip shape seal device fitting seat 3 and shell 12403, being provided with 12412, two the 2nd O type circles 12412 of two the 2nd O type circles is arranged in the groove in shell 12403 outsides.
By shown in Fig. 2 to Fig. 5, the present invention also provides a kind of assembly method of detachable rotating shaft lip-shaped sealing device, and it specifically comprises the following steps:
Step 1, an O type circle 12410 is put in the O type circle mounting groove of the second support ring 12404;
Step 2, pack successively rubber pad 12406, the 3rd sealing lip 124023, the second support ring 12404 that an O type circle 12410 is housed, rubber pad 12406, the second sealing lip 12402 and the first support ring 12405 inner chamber of shell 12403 into, and make each part end face submissive each other;
In this step, when the second support ring 12404 fits in the cavity of shell 12403, must ensure the oil hole on the second support ring 12404 and the alignment of the oil hole axle center on shell.
Step 3, axial along end cap 12401, then rubber pad 12406 and sealing lip 12402 are packed in end cap 12401 endoporus successively;
Step 4, adopt 24 socket head screws and 24 spring washers by shell and end-cover axle to together with being linked and packed;
Step 5, two the 2nd O type circles 12412 are respectively charged in the O type circle groove of shell 12403 outer rings;
Step 6, straight pin 12411 is assembled in the straight pin mounting hole of shell 12403 outer rings, has completed the assembling of detachable rotating shaft lip-shaped sealing device.
Claims (5)
1. a detachable rotating shaft lip-shaped sealing device, this lip shape seal device comprises end cap (12401), the first sealing lip (124021), the second sealing lip (124022), the 3rd sealing lip envelope lip (124023), shell (12403), the first support ring (12405), the second support ring (12404), rubber pad (12406), spring washer (12408), spring ring (12409), an O type circle (12410) and the 2nd O type circle (12412); It is characterized in that:
Lip shape seal device left side is provided with end cap (12401), right side is provided with shell (12403), in the space of end cap (12401) and shell (12403) formation, arrange successively from left to right the first sealing lip (124021), the second sealing lip (124022), the 3rd sealing lip (124023), wherein, the first support ring (12405) separates the first sealing lip (124021) and the second sealing lip (124022), the second support ring (12404) separates the second sealing lip (124022) and the 3rd sealing lip (124023),
The first sealing lip (124021) lip is towards a left side, the second sealing lip (124022) and the 3rd sealing lip (124023) lip in the same way, all towards the right side;
The outer circumference of the second support ring (12404) locates to offer O type circle groove near the second sealing lip (124022), and an O type circle (12410) is arranged in this O type circle groove;
The outer circumference of the second support ring (12404) locates to be provided with oiling groove near the 3rd sealing lip (124023), and this oiling groove communicates with the oil hole (4) of fitting seat (3) by the oilhole on shell (12403) and oil groove;
In the second support ring (12404) oiling groove, be also provided with an oilhole, this oilhole leads to the cavity between the second sealing lip (124022) and the first sealing lip (124021);
The first sealing lip (124021), the second sealing lip (124022), the 3rd sealing lip (124023) lip are compressed by spring ring (12409) respectively, thereby ensure the first sealing lip (124021), the second sealing lip (124022), the 3rd sealing lip (124023) and running shaft (1) close contact;
Between end cap (12401) and the first sealing lip (124021), rubber washer (12406) is set, between the second sealing lip (124022) and the second support ring (124504), rubber washer (12406) is set, between the 3rd sealing lip (124023) and housing (12403), rubber washer (12406) is set.
2. detachable rotating shaft lip-shaped sealing device according to claim 1, is characterized in that: end cap (12401) is connected and fixed by hex screw (12407) and spring washer (12408) with shell (12403).
3. detachable rotating shaft lip-shaped sealing device according to claim 1, is characterized in that:
Oil hole (4) by lip shape seal device fitting seat (3) injects lubricant oil between the second sealing lip (12402) and the 3rd sealing lip (12403) that lip shape seal device (124) two installs in the same way, thereby makes to form oil film between the second sealing lip (12402) and running shaft (1).
4. detachable rotating shaft lip-shaped sealing device according to claim 1, is characterized in that:
Between lip shape seal device fitting seat (3) and shell (12403), be provided with two the 2nd O type circles (12412), two the 2nd O type circles (12412) are arranged in the groove in shell (12403) outside.
5. according to the assembly method of the detachable rotating shaft lip-shaped sealing device described in claim, it specifically comprises the following steps:
Step 1, by the one O type circle (12410) put into the second support ring (12404) O type circle groove in;
Step 2, pack successively rubber pad (12406), the 3rd sealing lip (124023), the second support ring (12404) that an O type circle (12410) is housed, rubber pad (12406), the second sealing lip (12402) and the first support ring (12405) inner chamber of shell (12403) into, and make each part end face submissive each other;
In this step, the second support ring (12404) fits into the cavity of shell (12403), and ensures the oil hole on the second support ring (12404) and the alignment of the oil hole axle center on shell;
Step 3, axial along end cap (12401), packs rubber pad (12406) and sealing lip (12402) in end cap (12401) endoporus successively;
Step 4, employing socket head screw (12407) and spring washer (12408) are axially linked and packed shell (12403) and end cap (12401) to together;
Step 5,3 spring rings (12409) are respectively installed on the first sealing lip (124021), the second sealing lip (124022) and the 3rd sealing lip (124023);
Step 6, two the 2nd O type circles (12412) are respectively charged in two O type circle grooves of shell (12403) outer ring;
Step 7, finally straight pin (12411) is assembled in the straight pin mounting hole of shell (12403) outer ring, has completed the assembling of detachable rotating shaft lip-shaped sealing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410369854.7A CN104165227B (en) | 2014-07-30 | 2014-07-30 | A kind of detachable rotating shaft lip-shaped sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410369854.7A CN104165227B (en) | 2014-07-30 | 2014-07-30 | A kind of detachable rotating shaft lip-shaped sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104165227A true CN104165227A (en) | 2014-11-26 |
| CN104165227B CN104165227B (en) | 2017-12-08 |
Family
ID=51909166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410369854.7A Active CN104165227B (en) | 2014-07-30 | 2014-07-30 | A kind of detachable rotating shaft lip-shaped sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104165227B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269712A (en) * | 2017-07-26 | 2017-10-20 | 广西柳航墙材工业有限公司 | A kind of sealing structure of high-efficiency helical vacuum extruding form machine |
| CN107345572A (en) * | 2017-08-25 | 2017-11-14 | 北京臻迪科技股份有限公司 | Sealing structure and the robot that paddles |
| CN110185800A (en) * | 2019-04-18 | 2019-08-30 | 上海空间推进研究所 | Space flight radial seal elastic element installation method |
| CN111133237A (en) * | 2018-02-27 | 2020-05-08 | Nok株式会社 | Sealing structure |
| CN111166118A (en) * | 2020-02-19 | 2020-05-19 | 绍兴埔洋美容仪器有限公司 | Lip gloss equipment on probation |
| CN112963540A (en) * | 2021-02-07 | 2021-06-15 | 青岛众力诚达智能科技有限公司 | Rotary sealing structure with supporting lip |
| CN113719612A (en) * | 2021-07-29 | 2021-11-30 | 岚图汽车科技有限公司 | Engine oil pan sealing structure, engine and automobile |
| CN114992329A (en) * | 2022-07-07 | 2022-09-02 | 浙江迦南科技股份有限公司 | Rotary sealing device for sealing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3413008A (en) * | 1965-01-26 | 1968-11-26 | Sealol | Shaft seal |
| US3434727A (en) * | 1965-01-30 | 1969-03-25 | Howaldtswerke Deutsche Werft | Fluid-tight seals for rotatable shafts and the like |
| CN1056926A (en) * | 1990-05-30 | 1991-12-11 | 布隆福斯造船公司 | The rotation shaft seal, the stern tube that is specially adapted to unit of axle of ship propellor seals |
| JPH05149441A (en) * | 1991-12-02 | 1993-06-15 | Kobe Steel Ltd | Stern tube shaft seal device |
| CN1374468A (en) * | 2000-12-28 | 2002-10-16 | B+V工业技术股份有限公司 | Sealing apparatus for rotating shaft especially ship trailing axle tube |
| CN202597212U (en) * | 2012-05-15 | 2012-12-12 | 攀钢集团攀枝花钢钒有限公司 | Water pump shaft seal structure |
| CN103835863A (en) * | 2014-03-07 | 2014-06-04 | 国电联合动力技术有限公司 | Undersea sealing system, tidal power generation unit applying same and application method |
-
2014
- 2014-07-30 CN CN201410369854.7A patent/CN104165227B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3413008A (en) * | 1965-01-26 | 1968-11-26 | Sealol | Shaft seal |
| US3434727A (en) * | 1965-01-30 | 1969-03-25 | Howaldtswerke Deutsche Werft | Fluid-tight seals for rotatable shafts and the like |
| CN1056926A (en) * | 1990-05-30 | 1991-12-11 | 布隆福斯造船公司 | The rotation shaft seal, the stern tube that is specially adapted to unit of axle of ship propellor seals |
| JPH05149441A (en) * | 1991-12-02 | 1993-06-15 | Kobe Steel Ltd | Stern tube shaft seal device |
| CN1374468A (en) * | 2000-12-28 | 2002-10-16 | B+V工业技术股份有限公司 | Sealing apparatus for rotating shaft especially ship trailing axle tube |
| CN202597212U (en) * | 2012-05-15 | 2012-12-12 | 攀钢集团攀枝花钢钒有限公司 | Water pump shaft seal structure |
| CN103835863A (en) * | 2014-03-07 | 2014-06-04 | 国电联合动力技术有限公司 | Undersea sealing system, tidal power generation unit applying same and application method |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269712A (en) * | 2017-07-26 | 2017-10-20 | 广西柳航墙材工业有限公司 | A kind of sealing structure of high-efficiency helical vacuum extruding form machine |
| CN107345572A (en) * | 2017-08-25 | 2017-11-14 | 北京臻迪科技股份有限公司 | Sealing structure and the robot that paddles |
| CN111133237A (en) * | 2018-02-27 | 2020-05-08 | Nok株式会社 | Sealing structure |
| CN110185800A (en) * | 2019-04-18 | 2019-08-30 | 上海空间推进研究所 | Space flight radial seal elastic element installation method |
| CN111166118A (en) * | 2020-02-19 | 2020-05-19 | 绍兴埔洋美容仪器有限公司 | Lip gloss equipment on probation |
| CN111166118B (en) * | 2020-02-19 | 2021-04-16 | 南京溧水高新创业投资管理有限公司 | Lip gloss equipment on probation |
| CN112963540A (en) * | 2021-02-07 | 2021-06-15 | 青岛众力诚达智能科技有限公司 | Rotary sealing structure with supporting lip |
| CN113719612A (en) * | 2021-07-29 | 2021-11-30 | 岚图汽车科技有限公司 | Engine oil pan sealing structure, engine and automobile |
| CN114992329A (en) * | 2022-07-07 | 2022-09-02 | 浙江迦南科技股份有限公司 | Rotary sealing device for sealing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104165227B (en) | 2017-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104165227A (en) | Dismountable rotating shaft lip seal device | |
| CN104246258A (en) | Roller bearing unit which can be inserted in the preassembled state | |
| CN107850218A (en) | Swivel joint for vehicle | |
| CN105864036A (en) | Roots pump with mechanical sealing structures | |
| CN201627926U (en) | Heavy truck bridge hub oil seal | |
| CN206072347U (en) | A kind of swivel joint mechanically-sealing apparatus | |
| CN210830472U (en) | Framework oil seal structure | |
| CN201606335U (en) | Novel hydraulic cylinder | |
| CN103715810A (en) | Electric motor having air tightness test holes | |
| CN201118320Y (en) | Bearing sealing structure for middle-type vertical DC electromotor | |
| CN103231078B (en) | Device suitable for pre-tightening main shaft bearing of precision machine tool | |
| CN104918721A (en) | Seal assembly and neck seal for rolling mill | |
| CN103388580A (en) | Split type mechanical seal and double-screw pump with same | |
| CN203257897U (en) | Waterproof air leakage-preventing bearing | |
| CN204061551U (en) | Film spreading machine pack roller sealed bearing structure | |
| CN203532745U (en) | Multifunctional double-lip oil seal | |
| CN206190908U (en) | Seal structure of mine tailing breaker is exclusively used in | |
| CN202561035U (en) | Shaft end sealing structure for bearing box body | |
| CN206352576U (en) | High-pressure gear pump movable sealing structure | |
| CN203656193U (en) | Bearing isolator | |
| CN205744939U (en) | A kind of low frictional dissipation internal messing bearing | |
| CN204878358U (en) | New seal structure's hub bearing unit | |
| CN101162047A (en) | Highly effective mechanically-sealing apparatus | |
| CN202326377U (en) | Vehicular water pump with high sealing performance | |
| CN205896495U (en) | High -speed rotary joint of middling pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |