CN102364169B - Double-lip oil seal device capable of regulating pressure automatically - Google Patents
Double-lip oil seal device capable of regulating pressure automatically Download PDFInfo
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- CN102364169B CN102364169B CN2011103603454A CN201110360345A CN102364169B CN 102364169 B CN102364169 B CN 102364169B CN 2011103603454 A CN2011103603454 A CN 2011103603454A CN 201110360345 A CN201110360345 A CN 201110360345A CN 102364169 B CN102364169 B CN 102364169B
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Abstract
The invention relates to a double-lip oil seal device capable of regulating pressure automatically. The double-lip oil seal device capable of regulating the pressure automatically comprises a double-lip oil seal, a guide sleeve, a circular base plate, a buffer spring, a guide screw and a circular top cover, wherein the outer lip of the double-lip oil seal is slidably adhered to the outer wall of the guide sleeve in a sealed way; the inner lip of the double-lip oil seal is slidably adhered to a system working shaft in a sealed way; the circular base plate is arranged on the double-lip oil seal; a screw hole matched with the guide screw is formed on the circular base plate; the guide screw is arranged between the double-lip oil seal and the circular top cover; the guide screw is in threaded fit with the screw hole on the circular pad plate; the buffer spring is sleeved on the guide screw and is positioned between the circular base plate and the circular top cover; and the circular top cover is fixed on an outer end port of the guide sleeve through a fixing bolt. The double-lip oil seal device capable of regulating the pressure automatically can regulate the pressure automatically according to the pressure condition in a machine and ensure a stable pressure state in the machine, so that an explosion hazard caused by overhigh pressure is effectively prevented, the service life of inner components is prolonged, and excellent performance of the machine is ensured.
Description
Technical field
The present invention relates to the automatic pressure regulating device of a kind of motor and transmission device, particularly relate to a kind of automatic Regulation seal arrangement of two-lip seal.
Background technique
in development in science and technology now, motor and transmission device will reach the too busy to get away oil sealing that seals all the time of air-proof condition, demand along with development in science and technology, matching requirements for various sealing configurations is also more and more, but these oil sealings just serve as the role of a fixing seal effect all the time in seal arrangement, still need to rely on the cooperation of external diameter in seal arrangement and be fixed in cavity, there do not is the function of motion, the transmission system that this has relatively high expectations for some machines, need ensure good voltage regulation function in system, need to assist realization by miscellaneous equipment.Because oil sealing is in seal arrangement concept now, oil sealing is locked on cavity exactly firmly, does not possess other voltage regulation function in transmission device fully, and therefore, oil sealing uses still to exist so far much needs the bottlenecks of breaking through.
All can produce a kind of interior pressure in seal arrangement inside when motor and transmission device work, the size of its pressure directly affects performance and the life-span of seal arrangement, can guarantee that machine intimate has best steady pressure, is function the most key in whole equipment.
In order to break the use narrow limitation of oil sealing sealing device now, fill up the blank on this technical field, the existing automatic Regulation seal arrangement that needs the redesign new structure, bring the pressure regulation effect of oil sealing into play, becomes a new automatic voltage regulating system.
Summary of the invention
Technical problem to be solved by this invention is: a kind of oil-sealing arrangement that can automatic Regulation is provided; to solve motor and hydraulic equipment at a high speed and produce the unsettled problem of interior pressure during low speed switching running; described device can be realized the stable of machine intimate pressure; protected the working life of machine parts; guarantee machine performance optimum performance when work, greatly improved the working efficiency of machine.
the present invention, comprise two-lip seal, guide cylinder, the planchet plate, damping spring, guider screw and dome, the outer lip of described two-lip seal and the inwall of guide cylinder are the slidable sealing laminating, the inner lip of described two-lip seal and system works axle are the slidable sealing laminating, described planchet plate is placed on two-lip seal, be provided with the screw that coordinates with guider screw on the planchet plate, be provided with the through hole that coordinates with guider screw on dome, be provided with the through hole that coordinates with guider screw on two-lip seal, through hole on two-lip seal is vertically by the metal frame between two-lip seal outer lip and inner lip, described guider screw is arranged between two-lip seal and dome, screw on described guider screw and planchet plate is screw-thread fit, be arranged with damping spring on described guider screw, damping spring is between planchet plate and dome, described dome is fixed on the external port of guide cylinder by set screw, outer end at guide cylinder is provided with flange plate, flange plate is provided with the through hole that is communicated with dome, centre at dome and planchet plate, be respectively equipped with axle center hole, axle center hole and system works axle are Spielpassung.Namely this through hole external diameter is larger than the external diameter of system works axle, with axle, does not interfere guaranteeing.
The present invention, can be provided with triangle boss at the internal surface of described dome, and the external diameter of triangle boss coordinates for location with the internal diameter of guide cylinder.Triangle boss can play positioning action installing, and can also strengthen the stressed effect of total simultaneously.
The present invention, described guide cylinder inner wall surface roughness is below Ra1.6.
Working principle of the present invention is: described dome, planchet plate and two-lip seal are by the device with an automatic telescopic of the rear formation of guider screw assembling, and guider screw plays a leading role in flexible, has guaranteed the accuracy of two-lip seal when motion; The outer lip of described two-lip seal forms movable seal arrangement with guide cylinder inwall laminating under the effect of expansion device, when machine intimate pressure raise, two-lip seal was along with expansion device outwards moves, otherwise moved inward.
The invention has the beneficial effects as follows: (1) is under the state of machinery equipment job insecurity, inner meeting is along with producing different pressure, the present invention can automatically adjust according to the pressure condition of machine intimate, can guarantee that machine intimate has a stable pressure state, produce the hidden danger of blast while effectively preventing overpressure, improve the working life of inner body, guarantee that machine given play to more superior performance; (2) install early stage or during later period maintenance, convenient disassembly, the part in device are easy to change, and by common screwdriver tool, can operate, and effectively reduce artificial maintenance man-hours expense; (3) broken through the restricting condition for use of traditional oil sealing, be converted to movable seal pattern by pattern that can only fixing seal, further enlarge the oil sealing application area, realize that the same kind product has the using effect of several functions, in the industrial design in future and in making, provide more favourable assurance.
Description of drawings
Fig. 1-Fig. 3 is the structure principle chart of this device, and wherein, Fig. 1 is the sectional structure chart of the two-lip seal of this device, and Fig. 2 is the sectional structure chart of this device, and Fig. 3 is the plan view of this device; Fig. 4 and Fig. 5 install and use view for this device, and wherein, Fig. 4 is state (position) schematic diagram (sectional drawing) of system this device while being in low pressure; Fig. 5 is state (position) schematic diagram (sectional drawing) of system this device while being in high pressure.
In figure, 1, dome 2, set screw 3, guider screw 4, damping spring 5, planchet plate 6, two-lip seal 7, guide cylinder 8, equipment cavity 9, machine oil 10, system works axle 11, seal ring 12, rigging screw 13, triangle boss 20, through hole 30, axle center hole 61, outer lip 62, metal frame 63, inner lip 64, lip spring 65, through hole.
Embodiment
with reference to accompanying drawing, a kind of Automatic-pressure-regulation two-lip oil seal device, comprise two-lip seal 6, guide cylinder 7, planchet plate 5, damping spring 4, guider screw 3 and dome 1, the outer lip 61 of described two-lip seal 6 is the slidable sealing laminating with the inwall of guide cylinder 7, the inner lip 63 of described two-lip seal 6 is the slidable sealing laminating with system works axle 10, described planchet plate 5 is placed on two-lip seal 6, be provided with the screw that coordinates with guider screw 3 on planchet plate 5, be provided with the through hole that coordinates with guider screw 3 on dome 1, be provided with the through hole 65 that coordinates with guider screw 3 on two-lip seal 6, through hole 65 on two-lip seal 6 is vertical by the metal frame 62 between two-lip seal 6 outer lips 61 and inner lip 63, described guider screw 3 is arranged between two-lip seal 6 and dome 1, described guider screw 3 is screw-thread fit with the screw on planchet plate 5, be arranged with damping spring 4 on described guider screw 3, damping spring 4 is between planchet plate 5 and dome 1, described dome 1 is fixed on the external port of guide cylinder 7 by set screw 2, outer end at guide cylinder 7 is provided with flange plate, flange plate is provided with the through hole 20 that is communicated with dome 1, centre at dome 1 and planchet plate 5, be respectively equipped with axle center hole 30, axle center hole 30 is Spielpassung with system works axle 10, internal surface at described dome 1 is provided with triangle boss 13, the external diameter of triangle boss 13 coordinates for location with the internal diameter of guide cylinder 7, described guide cylinder 7 inner wall surface roughness are controlled at below Ra1.6, outer wall only need be controlled the size that coordinates with the machine cavity, top is provided with the screwing through hole corresponding with dome, for follow-up assembling designs.
with reference to Fig. 2, the assemble sequence of this device is: first guider screw 3 is penetrated in the through hole 65 of two-lip seal 6, the tapped hole that arranges on planchet plate 5, can be directed to screw 3 is fastenedly connected, at this moment, the through hole 65 of two-lip seal 6 is connected sealing, to guarantee sealing effect, also can play better supporting effect, the two-lip seal 6 that will connect again penetrates cooperation through guide cylinder 7 inwall bottoms, then be inserted in spring 4 on guider screw 3, again dome 1 is penetrated in guider screw 3, until push down the end face of guide lid 7, next guider screw 3 is locked on dome 1, with set screw 2, dome 1 has been fixedly connected with guide cylinder 7 more finally.After this device is linked and packed, can first regulate according to actual conditions the effective exercise length of guider screw 3, to reach the pressure state of initial stage anticipation.
With reference to Fig. 3, the position of the set screw 2 of this device, guider screw 3 and through hole 20 distributes in the form of a ring, three's screw hole number designs according to two-lip seal 6 specification sizes, but three's screw hole number at least all needs more than three, the present invention adopts six fixing screw holes, four guider screw holes and four rigging screw holes, center is axle center hole 30, for assembling.
with reference to Fig. 4, the present invention is assembled in system equipment: adopt seal ring 11 and rigging screw 12 that the present invention is assembled in equipment cavity 8, system works axle 10 surfaces are interference fit with the inner lip 63 of two-lip seal 6, form sealing system, when the machine tick-over, under the rotation of system works axle 10, machine oil 9 is the whole cavity of vaporific filling under the effect of pressure, at this moment, the inner lip 63 of two-lip seal 6 and the 10 surface laminatings of system works axle, and outer lip 61 and guide cylinder 7 laminatings, both have formed a sealing system, owing to being the motion state that is in low speed, the force value that the present invention of machine intimate pressure ratio sets is little, two-lip seal 6 does not move.
With reference to Fig. 5, when the machine High Rotation Speed is worked, at this moment can produce larger interior pressure, and should interiorly press the force value of setting greater than the present invention, two-lip seal 6 outwards adjusts movement with guider screw 3 under the effect of interior pressure, and damping spring 4 is in confined state, thereby reduce the pressure of machine intimate, and when at a high speed transferring tick-over to, two-lip seal 6 inwardly returns to again original state under the effect of damping spring 4 and guider screw 3, finally reaches the voltage stabilizing purpose of machine intimate.
Claims (3)
1. Automatic-pressure-regulation two-lip oil seal device, it is characterized in that: comprise two-lip seal (6), guide cylinder (7), planchet plate (5), damping spring (4), guider screw (3) and dome (1), the outer lip (61) of described two-lip seal (6) is the slidable sealing laminating with the inwall of guide cylinder (7), the inner lip (63) of described two-lip seal (6) is the slidable sealing laminating with system works axle (10), described planchet plate (5) is placed on two-lip seal (6), be provided with the screw that coordinates with guider screw (3) on planchet plate (5), be provided with the through hole that coordinates with guider screw (3) on dome (1), be provided with the through hole (65) that coordinates with guider screw (3) on two-lip seal (6), through hole (65) on two-lip seal (6) is vertically by the metal frame (62) between two-lip seal (6) outer lip (61) and inner lip (63), described guider screw (3) is arranged between two-lip seal (6) and dome (1), described guider screw (3) is screw-thread fit with the screw on planchet plate (5), be arranged with damping spring (4) on described guider screw (3), damping spring (4) is positioned between planchet plate (5) and dome (1), described dome (1) is fixed on the external port of guide cylinder (7) by set screw (2), outer end at guide cylinder (7) is provided with flange plate, flange plate is provided with the through hole (20) that is communicated with dome (1), centre at dome (1) and planchet plate (5), be respectively equipped with axle center hole (30), axle center hole (30) is Spielpassung with system works axle (10).
2. Automatic-pressure-regulation two-lip oil seal device according to claim 1, it is characterized in that: the internal surface at described dome (1) is provided with triangle boss (13), and the external diameter of triangle boss (13) coordinates for location with the internal diameter of guide cylinder (7).
3. Automatic-pressure-regulation two-lip oil seal device according to claim 1, it is characterized in that: described guide cylinder (7) inner wall surface roughness is below Ra1.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103603454A CN102364169B (en) | 2011-11-14 | 2011-11-14 | Double-lip oil seal device capable of regulating pressure automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103603454A CN102364169B (en) | 2011-11-14 | 2011-11-14 | Double-lip oil seal device capable of regulating pressure automatically |
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| Publication Number | Publication Date |
|---|---|
| CN102364169A CN102364169A (en) | 2012-02-29 |
| CN102364169B true CN102364169B (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103603454A Active CN102364169B (en) | 2011-11-14 | 2011-11-14 | Double-lip oil seal device capable of regulating pressure automatically |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051165A (en) * | 2016-06-20 | 2016-10-26 | 山东省农业机械科学研究院 | Flexible fit seal ring for air-suction seed metering device |
| CN106499820B (en) * | 2016-12-27 | 2019-04-02 | 重庆小康工业集团股份有限公司 | Water pump sealing mechanism |
| CN107675945B (en) * | 2017-10-26 | 2024-01-19 | 陈坤 | Guide pillar type sliding cover device for lock |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3317767A1 (en) * | 1982-05-18 | 1983-12-15 | Fa. Procal, Langres | Seal |
| EP0926408A2 (en) * | 1997-10-24 | 1999-06-30 | EAGLE INDUSTRY Co., Ltd. | Sealing apparatus |
| CN101122315A (en) * | 2006-08-11 | 2008-02-13 | 萱场工业株式会社 | Check valve structure of hydraulic dumper |
| CN202023925U (en) * | 2011-03-24 | 2011-11-02 | 十堰东森汽车密封件有限公司 | Axel shaft oil seal |
| CN202327115U (en) * | 2011-11-14 | 2012-07-11 | 揭阳市天诚密封件有限公司 | Automatic-pressure-regulation two-lip oil seal device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010265954A (en) * | 2009-05-13 | 2010-11-25 | Kayaba Ind Co Ltd | Shaft seal structure |
-
2011
- 2011-11-14 CN CN2011103603454A patent/CN102364169B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3317767A1 (en) * | 1982-05-18 | 1983-12-15 | Fa. Procal, Langres | Seal |
| EP0926408A2 (en) * | 1997-10-24 | 1999-06-30 | EAGLE INDUSTRY Co., Ltd. | Sealing apparatus |
| CN101122315A (en) * | 2006-08-11 | 2008-02-13 | 萱场工业株式会社 | Check valve structure of hydraulic dumper |
| CN202023925U (en) * | 2011-03-24 | 2011-11-02 | 十堰东森汽车密封件有限公司 | Axel shaft oil seal |
| CN202327115U (en) * | 2011-11-14 | 2012-07-11 | 揭阳市天诚密封件有限公司 | Automatic-pressure-regulation two-lip oil seal device |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2010-265954A 2010.11.25 |
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| CN102364169A (en) | 2012-02-29 |
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Address after: To the north of Guangdong city of Jieyang province Jieyang 522000 industrial transfer Industrial Park Road, Chaoyang West Songtao Street Patentee after: GUANGDONG TIANCHENG SEALS CO.,LTD. Address before: East Rong Dong Industrial Zone 522000 Guangdong Fenglin District of Rongcheng city in Jieyang Province Patentee before: JIEYANG TIANCHENG SEAL COMPONENTS Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Automatic pressure regulating double lip oil seal device Effective date of registration: 20230321 Granted publication date: 20131120 Pledgee: Agricultural Bank of China Co.,Ltd. Jieyang Jiedong Sub branch Pledgor: GUANGDONG TIANCHENG SEALS CO.,LTD. Registration number: Y2023980035605 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |