CN101839346B - Oil seal regulating device and reducer provided with regulating device - Google Patents
Oil seal regulating device and reducer provided with regulating device Download PDFInfo
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- CN101839346B CN101839346B CN2010101541444A CN201010154144A CN101839346B CN 101839346 B CN101839346 B CN 101839346B CN 2010101541444 A CN2010101541444 A CN 2010101541444A CN 201010154144 A CN201010154144 A CN 201010154144A CN 101839346 B CN101839346 B CN 101839346B
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 45
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 34
- 230000008859 change Effects 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 161
- 238000000926 separation method Methods 0.000 claims description 38
- 238000012856 packing Methods 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 238000012423 maintenance Methods 0.000 abstract description 13
- 238000002955 isolation Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 145
- 239000000919 ceramic Substances 0.000 description 13
- 238000009434 installation Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The invention discloses an oil seal regulating device arranged on the output shaft of a reducer. The oil seal regulating device comprises an oil seal and an end cover used for arranging the oil seal, wherein the end cover has a cavity for accommodating the oil seal; and an isolation sleeve is cushioned between the loading end of the oil seal and an oil seal support part of the cavity. Under the condition of not changing the structure and size of the shaft, the oil seal regulating device can change the position of the oil seal relative to the shaft by replacing isolation sleeves with different sizes, so grooves caused by wear are avoided, the oil seal and the shaft are tightly contacted on the unworn part, the replacement of the whole shaft due to the wear of the oil seal contact part can be avoided, and the operating cost and maintenance cost are greatly reduced. The invention also discloses a reducer comprising the oil seal regulating device.
Description
Technical field
The present invention relates to the oil seal technical field, particularly relate to a kind of and the matching used controlling device of oil sealing.The invention still further relates to the speed reducer that comprises above-mentioned controlling device.
Background technique
Oil sealing is a kind of Sealing product that is used for sealing lubricating oil; Be used for transmission system more; Its effect is with needing lubricated parts and miscellaneous part to separate in the transmission system, keeping lubricant oil can not let out and cause the pollution of miscellaneous part, or cause the decline of lubricant oil oil mass.
At present, in every operating body case lubricating oil is arranged and the position that is connected with the outside all needs oil sealing, all oil sealing can be installed like the input shaft and the output shaft place of speed reducer; Be used for isolation lubricating oil; Anti-heads, the position hardness that its input, output shaft contact with oil sealing is higher, and Rockwell hardness (HRC) value requires at 58-62; To prevent in long-term using process, because of motive sealing produces wearing and tearing.
Because oil sealing must closely contact with axle, even the input of speed reducer, output shaft have higher relatively hardness, after long-time running; Concentrated wear still can take place in its input, output shaft, and the continuous aggravation along with wearing and tearing can produce groove at the position that axle contacts with oil sealing; Cause axle can't continue closely to contact with oil sealing, make oil sealing lose sealing effect and lost efficacy, conventional solution can only be the hardness number of contact position of being rigid in checking up; If the axle serious wear causes oil seal failure, can only change whole axle; Because the acquisition cost of whole axle is higher, so it moves and maintenance cost maintains higher level always.
Another kind of solution is between oil sealing and axle, to set up oil-sealing sleeve, is born the wearing and tearing that cause because of rotatablely moving by oil-sealing sleeve.
Like notice of authorization number is the disclosed oil sealing axle sleeve of CN 201145035Y; It comprises and is used to be arranged on the Ceramic shaft sleeve at the shaft sealing position that seals fitting seat and be used to be arranged on the rubber oil sea between Ceramic shaft sleeve and the axle; Under the situation of structure that does not change former sealing fitting seat and axle and size, a Ceramic shaft sleeve is installed at the shaft sealing position, and is selected for use the oil sealing that matches with this Ceramic shaft sleeve; Form new sealing configuration; Because Ceramic shaft sleeve hardness is high, can reduce the friction factor of motive sealing rubbing surface greatly in the use, so can improve the working life of oil sealing.Simultaneously, when maintenance, needn't change axle, only need change axle sleeve, greatly reduce operation and maintenance cost because of the wearing and tearing of axle journal.
The drawback that above-mentioned oil-sealing sleeve is difficult to overcome below existing:
At first, Ceramic shaft sleeve generally is single sleeve-shaped, lacks the function corresponding structure on it, and installation and removal are difficulty comparatively, and working efficiency is lower;
Secondly; Because the Young's modulus of stupalith is higher, and is not yielding when stressed, can not seal with the mode of interference fit between Ceramic shaft sleeve and the axle; Therefore must extraly set up rubber oil sea carries out secondary seal; The complicacy more that whole sealing configuration is become, and owing to increased sealing surface, the risk of leakage also strengthens thereupon;
Moreover though pottery has very high friction resistant ability, material property has determined Ceramic shaft sleeve to belong to fragile part, and its resistance to compression, tension degree are low, in production, transportation, installation, using process, are easy to the phenomenon that is damaged;
At last, the cost of Ceramic shaft sleeve is higher, is unfavorable for reducing operation, maintenance cost.
It is thus clear that; Can avoid oil sealing that axle is caused wearing and tearing though use oil-sealing sleeve; But also there is certain narrow limitation in himself, therefore, and how under the situation of not using ceramic oil-sealing sleeve; Can avoid equally changing whole axle because of the wearing and tearing of oil sealing contact position, be the present technical issues that need to address of those skilled in the art.
Summary of the invention
The purpose of this invention is to provide a kind of oil seal regulating device.This oil seal regulating device is under the situation of structure that does not change axle and size; Separation sleeve through changing different size can change the position of oil sealing with respect to axle, thereby avoids the groove that produces because of wearing and tearing, makes oil sealing and spool closely contacts in abrading section not; Again reach sealing effect; Under the situation of not using ceramic oil-sealing sleeve, can avoid equally changing whole axle because of the wearing and tearing of oil sealing contact position, greatly reduce operation and maintenance cost.
Another object of the present invention provides a kind of speed reducer that comprises above-mentioned oil seal regulating device.
For solving the problems of the technologies described above; The present invention provides a kind of oil seal regulating device; Be used for speed reducer shaft place; The end cap that comprises oil sealing and be used to install said oil sealing, said end cap has the cavity that holds said oil sealing, and pad is provided with separation sleeve between the oil sealing support zone of pack into the end and the said cavity of said oil sealing.
Preferably, further comprise axle sleeve, said oil sealing is assemblied in the said axle sleeve, and both form an assembly parts, and this assembly parts is packed in the said cavity.
Preferably, the height of said axle sleeve equals the height of said oil sealing.
Preferably, the inner peripheral surface of the outer peripheral surface of said axle sleeve and said cavity closely cooperates.
Preferably, the external diameter of said separation sleeve equals the external diameter of said axle sleeve, and the internal diameter of said separation sleeve is less than the external diameter of said oil sealing, greater than the internal diameter of said oil sealing.
Preferably, said axle sleeve is provided with retaining part on its outer rim with respect to the other end of the end of packing into.
Preferably, said retaining part is specially ring-shaped step.
The present invention also provides a kind of speed reducer, and its shaft place has above-mentioned each described oil seal regulating device, and cover by passing through lid the exterior edge face of said oil sealing, is connected through screw between said lid and the end cap.
Preferably, be set with packing ring on the said screw, said packing ring is between said lid and end cap.
Preferably, leave the gap between the exterior edge face of said lid and said oil sealing.
Oil seal regulating device provided by the present invention pad between the oil sealing support zone of pack into the end and the cavity of oil sealing is provided with separation sleeve.The main effect of the separation sleeve that is designed here be through therebetween at a distance from being used for regulating the axial position of oil sealing, produce groove when wearing and tearing take place at the sealing position of axle, cause oil sealing with spool continuing tight the contact during seal failure; Separation sleeve through changing different heights can change the position of oil sealing with respect to axle, thereby avoids the groove that produces because of wearing and tearing, makes oil sealing and spool closely contacts in abrading section not; Again realize sealing; Do not change the axle structure, size and do not use under the situation of ceramic oil-sealing sleeve, can avoid replacing bearing equally, with respect to bearing; Said separation sleeve is simple in structure; Be easy to shape, and cost is lower, greatly reduces the operation and the maintenance cost of speed reducer.
In a kind of embodiment, further comprise axle sleeve, said oil sealing is assemblied in the said axle sleeve, and both form an assembly parts, and this assembly parts is packed in the said cavity.Because separation sleeve is packed between the end and the support zone of cavity oil sealing, only after pulling down oil sealing, just can change the operation of separation sleeve during maintenance; And oil sealing is a kind of sealed member of precision, requires oil sealing can not have damage, distortion or contaminated situation during installation, otherwise can have a strong impact on its sealability; Especially the sealed lip of oil sealing does not allow any object to touch mutually with it, so oil sealing does not generally allow to repeat to install and use; Install additional after the axle sleeve, said oil sealing is installed in the cavity through axle sleeve, when changing the oil sealing separation sleeve; Can axle sleeve be dismantled, install together with oil sealing, make oil sealing can repeat dismounting and use and unlikely damage.
In another kind of embodiment, the height of said axle sleeve equals the height of said oil sealing.Because oil sealing need be fitted with the inwall of installing space when correct the installation fully; And the axle sleeve of equal height can provide enough installing spaces for oil sealing; Can guarantee the integrity of oil sealing outer ring assembling, oil sealing can accurately be in place, thereby normally bring into play its sealing function.
In another kind of embodiment, the outer peripheral surface of said axle sleeve and the inner peripheral surface of said cavity closely cooperate.Like this, need not to set up under the situation of Sealing, axle sleeve and cavity can seal through close-fitting mode, avoid between both surface of contact, leaking, and guarantee the reliability of sealing.
In another kind of embodiment, said axle sleeve is provided with retaining part on its outer rim with respect to the other end of the end of packing into.This retaining part is a functional structure; Can stressed support zone be provided for the installation or removal instrument; Avoid destroying mating face, the assembly that oil sealing and axle sleeve are formed can be installed in the cavity with being more prone to or from cavity, disassemble, thereby installation or removal are shortened dramatically required man-hour; Greatly facilitate use, help further to reduce operation, maintenance cost.
Speed reducer provided by the present invention is provided with above-mentioned each described oil seal regulating device at its shaft place, because above-mentioned oil seal regulating device has above-mentioned technique effect, the speed reducer with this oil seal regulating device also should possess the corresponding techniques effect.
Description of drawings
Fig. 1 is in the not structural representation of adjustment state when being used for speed reducer for oil seal regulating device provided by the present invention;
Structural representation after Fig. 2 regulates when being used for speed reducer for oil seal regulating device provided by the present invention first;
Structural representation after Fig. 3 regulates when being used for speed reducer for oil seal regulating device provided by the present invention once more.
Pairing equipment of numeral number or component names are following among the figure:
Oil sealing 20. end cap 20-1. cavity 20-2. support zones 30. axle sleeve 30-1. ring-shaped steps 40,40 '. separation sleeve 50. covers 60. screws, 70. packing rings thoroughly
Embodiment
Core of the present invention provides a kind of oil seal regulating device.This oil seal regulating device can be avoided changing whole axle because of the wearing and tearing of oil sealing contact position, reduces the operation and the maintenance cost of speed reducer greatly.Another core of the present invention provides a kind of speed reducer that comprises above-mentioned oil seal regulating device.
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with accompanying drawing and embodiment.
Please refer to Fig. 2, the structural representation after Fig. 2 regulates when being used for speed reducer for oil seal regulating device provided by the present invention first.
In a kind of embodiment; Oil seal regulating device provided by the present invention is used for speed reducer shaft place; Rotating shaft to speed reducer seals, and specifically can be the output shaft or the input shaft of speed reducer, main by oil sealing 10 and the end cap 20 that is used to install oil sealing constitute; End cap 20 has the circular cavity 20-1 that holds oil sealing 10, the support zone 20-2 that move to speed reducer inside for restriction oil sealing 10 bottom of cavity 20-1.
Oil sealing 10 is assemblied in the axle sleeve 30, and both constitute an assembly parts, and oil sealing 10 is packed into together with axle sleeve 30 among the cavity 20-1 of end cap 20, and the height of axle sleeve 30 (being the axial dimension of axle sleeve) equals the height (being the axial dimension of oil sealing) of oil sealing 10.This mainly is because according to the installation requirement of oil sealing 10, oil sealing 10 need be fitted with the inwall of installing space after correct the installation fully; Specific to oil seal regulating device provided by the present invention, if the height of axle sleeve 30 is greater than oil sealing, axle sleeve 30 unnecessary sizes can take the adjusting space of oil sealing 10; The height of axle sleeve 30 cause the adjusting number of times of oil sealing 10 to reduce, if can not make oil sealing 10 be in place exactly again less than oil sealing 10; And the axle sleeve 30 of equal height can provide enough installing spaces for oil sealing 10; Can not take the adjusting space of oil sealing 10 again, can guarantee the integrity of oil sealing outer ring assembling, make oil sealing 10 can normally bring into play its sealing function.
Owing between the inner peripheral surface of oil sealing 10 and cavity 20-1, set up axle sleeve 30; Can introduce the new sealing surface in two places; The two place's sealing surfaces that are between oil sealing 10 and the axle sleeve 30, form between axle sleeve 30 and the cavity 20-1 inner peripheral surface; Structure according to oil sealing 10 can know that oil sealing 10 just can be realized sealing with the inner peripheral surface of axle sleeve 30 behind the axle sleeve 30 of packing into, and the inner peripheral surface of the outer peripheral surface of axle sleeve 30 and cavity 20-1 closely cooperates.Like this, need not to set up under the situation of Sealing, axle sleeve 30 can seal through close-fitting mode with the inner peripheral surface of cavity 20-1, avoids between both surface of contact, leaking, and guarantees the reliability of sealing.
Fill up between pack into end and the support zone 20-2 of the assembly parts that above-mentioned oil sealing 10 and axle sleeve 30 constitutes and be provided with separation sleeve 40; The external diameter of separation sleeve 40 equals the external diameter of (or being slightly less than) axle sleeve 30; The internal diameter of separation sleeve 30 less than the external diameter of oil sealing 10 greater than the internal diameter of oil sealing 10; Be the shaft hole diameter of the internal diameter of separation sleeve 10 less than end cap 20, the end of packing into of oil sealing 10 and axle sleeve 20 is supported on the annular end face of separation sleeve 40 simultaneously, limits oil sealing 10 and axle sleeve 30 simultaneously by isolating 40 covers.
Cover by covering 50 thoroughly the exterior edge face of oil sealing 10; Cover the internal diameter that 50 shaft hole diameter is slightly less than oil sealing 10 thoroughly, after oil sealing 10 is passed in the rotating shaft of speed reducer, protruding from cover 50 axis hole thoroughly; Offer screw hole on the end face of end cap 20; Cover thoroughly and offer corresponding through hole on 50, some screws 60 pass realize in the screw hole that the through hole that covers on 50 screws in end cap 20 covering thoroughly 50 with being connected of end cap 20, be fixed on the end face of end cap 20 covering 50 thoroughly.
Because only just need adding separation sleeve 40 after wearing and tearing take place, oil seal regulating device provided by the present invention regulates; Therefore before regulating first, whole device will be in state as shown in Figure 1, at this moment; Separation sleeve is not set; The degree of depth of cavity 20-1 equals the height of axle sleeve 30 and oil sealing 10 just, behind pack into axle sleeve 30 and the oil sealing 10, and the end face flush of its exterior edge face and end cap 20.
Produce groove when wearing and tearing take place for the sealing position of axle, cause oil sealing and axle can't continue tight the contact and during seal failure, through installing separation sleeve 40 (as shown in Figure 2) additional; Can make axle sleeve 30 outwards move certain distance, thereby change the position of oil sealing 10, avoid the groove that produces because of wearing and tearing with respect to axle together with oil sealing 10; Oil sealing 10 is closely contacted in abrading section not with axle, realize sealing again, in the structure, the size that do not change axle and do not use under the situation of ceramic oil-sealing sleeve; Can avoid replacing bearing equally; With respect to bearing, separation sleeve is simple in structure, is easy to shape; And cost is lower, greatly reduces the operation and the maintenance cost of speed reducer.
Because separation sleeve 40 is packed between end and the support zone 20-2 oil sealing 10, only after pulling down oil sealing 10, just can change the operation of separation sleeve 40 during maintenance; And oil sealing 10 is sealed members of a kind of precision, requires during installation to have damage, distortion or contaminated situation, otherwise can have a strong impact on its sealability; Especially the sealed lip of oil sealing 10; Do not allow any object to touch mutually with it, so oil sealing 10 generally do not allow to repeat to install and use, install additional after the axle sleeve 30; Oil sealing 10 is installed among the cavity 20-1 through axle sleeve 30; When changing oil sealing separation sleeve 40, can axle sleeve 30 be dismantled, install together with oil sealing 10, make oil sealing 10 can repeat dismounting and use and unlikely damage.
As shown in Figure 3, the structural representation after Fig. 3 regulates when being used for speed reducer for oil seal regulating device provided by the present invention once more.
After regulating first, when wearing and tearing take place and produce groove once more in the sealing position of axle, the separation sleeve 40 through changing highly increasing '; Axle sleeve 30 is further outwards moved together with oil sealing 10, thereby change the position of oil sealing 10, avoid the second road groove that produces because of wearing and tearing with respect to axle; Oil sealing 10 is closely contacted in abrading section not with axle, realize sealing again, the rest may be inferred; Under the situation of regulating the space permission, oil sealing 10 can repeatedly be regulated, and just need change bearing until exceeding regulation range; During this period, if oil seal failure, the oil sealing that then also need more renew.
For the ease of dismounting axle sleeve 30 and oil sealing 10, axle sleeve 30 is provided with retaining part on its outer rim with respect to the other end of the end of packing into.This retaining part specifically can be ring-shaped step 30-1; Ring-shaped step 30-1 is processed to form through milling process, has the step surface that supplies the installation or removal tool holding, can force bearing point be provided for the installation or removal instrument; Be convenient to axle sleeve and oil sealing are packed into together or pulled out; Can not destroy mating face during practical operation, the assembly that oil sealing 10 and axle sleeve 30 are formed can be installed among the cavity 20-1 with being more prone to or from cavity 20-1, disassemble, thereby shortens installation or removal required man-hours; Greatly facilitate use, help further to reduce operation, maintenance cost.
As can be seen from the figure, when regulating first, on the screw 60 suit packing ring 70, packing ring 70 cover thoroughly 50 and end cap 20 between.This is because before regulating, and the exterior edge face of axle sleeve 30, oil sealing 10 has been in concordant state with the end face of end cap 20, install separation sleeve 40 additional after; Under the interval action of separation sleeve 40, axle sleeve 30 outwards moves with oil sealing 10, will certainly exceed end cap 20 certain distances; And packing ring 70 is set; Can make and cover 50 and keep a determining deviation with end cap 20, make cover 50 with the exterior edge face of oil sealing 10 between leave the gap, thereby guarantee that axle sleeve 30 and oil sealing 10 can not receive from the pressure that covers 50 thoroughly.
What those skilled in the art should understand that is; Oil seal regulating device provided by the present invention both can not be provided with separation sleeve before adjustment; Then regulate through the height that progressively increases separation sleeve; Also can install a plurality of separation sleeves with range upon range of mode additional and regulate, the separation sleeve with certain altitude can also be set in advance, regulate or the like through the height that progressively reduces separation sleeve then.
Certainly, the present invention is not only applicable to speed reducer, can also be used for other and have rotating shaft and the transmission device of needs installation oil sealing, and this paper gives an example no longer one by one.
Here need to prove; The external diameter of above-mentioned axle sleeve and separation sleeve, internal diameter, height equidimension can be confirmed according to the as installed parameter; This paper does not do concrete qualification, and obviously, axle sleeve and the separation sleeve of virtually any size with above structure is all within protection scope of the present invention.
Except above-mentioned oil-sealing sleeve, the present invention also provides a kind of speed reducer, and its shaft place has above-mentioned oil seal regulating device.The structure of these other each several parts of speed reducer please refer to existing technology, and this paper repeats no more.
More than oil seal regulating device provided by the present invention and the speed reducer that is provided with this controlling device have been carried out detailed introduction.Used concrete example among this paper principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand core concept of the present invention.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. oil seal regulating device; Be installed on speed reducer shaft place; The end cap that comprises oil sealing and be used to install said oil sealing, said end cap has the cavity that holds said oil sealing, it is characterized in that; Pad is provided with separation sleeve between pack into end and the oil sealing support zone of said cavity of said oil sealing, and the separation sleeve through changing different size is with the position of change oil sealing with respect to axle.
2. oil seal regulating device according to claim 1 is characterized in that, further comprises axle sleeve, and said oil sealing is assemblied in the said axle sleeve, and both form an assembly parts, and this assembly parts is loaded in the said cavity.
3. oil seal regulating device according to claim 2 is characterized in that, the height of said axle sleeve equals the height of said oil sealing.
4. oil seal regulating device according to claim 3 is characterized in that, the outer peripheral surface of said axle sleeve and the inner peripheral surface of said cavity closely cooperate.
5. oil seal regulating device according to claim 4 is characterized in that, the external diameter of said separation sleeve equals the external diameter of said axle sleeve, and the internal diameter of said separation sleeve is less than the external diameter of said oil sealing, greater than the internal diameter of said oil sealing.
6. according to the arbitrary described oil seal regulating device of claim 1 to 5, it is characterized in that said axle sleeve is provided with retaining part on its outer rim with respect to the other end of the end of packing into.
7. oil seal regulating device according to claim 6 is characterized in that said retaining part is specially ring-shaped step.
8. a speed reducer comprises lid, it is characterized in that, its shaft place has aforesaid right requirement 1 to 7 arbitrary described oil seal regulating device, and the exterior edge face of said oil sealing is covered by said lid, is connected through screw between said lid and the end cap.
9. speed reducer according to claim 8 is characterized in that, is set with packing ring on the said screw, and said packing ring is between said lid and end cap.
10. speed reducer according to claim 9 is characterized in that, leaves the gap between the exterior edge face of said lid and said oil sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101541444A CN101839346B (en) | 2010-04-19 | 2010-04-19 | Oil seal regulating device and reducer provided with regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101541444A CN101839346B (en) | 2010-04-19 | 2010-04-19 | Oil seal regulating device and reducer provided with regulating device |
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| CN101839346A CN101839346A (en) | 2010-09-22 |
| CN101839346B true CN101839346B (en) | 2012-01-25 |
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| CN2010101541444A Active CN101839346B (en) | 2010-04-19 | 2010-04-19 | Oil seal regulating device and reducer provided with regulating device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102878299A (en) * | 2012-10-19 | 2013-01-16 | 无锡京华重工装备制造有限公司 | Sealing structure of rotating main shaft |
| FR3104224A1 (en) * | 2019-12-10 | 2021-06-11 | Psa Automobiles Sa | SEALING SYSTEM AND PROCEDURE FOR CHANGING A SEAL |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777577B (en) * | 2012-06-19 | 2015-09-09 | 江苏高博智融科技有限公司 | Cover plate |
| CN102705490B (en) * | 2012-06-20 | 2015-07-08 | 沃德(天津)传动有限公司 | Reduction gear and end cover thereof |
| FR3085193B1 (en) | 2018-08-24 | 2020-08-21 | Psa Automobiles Sa | DEVICE AND METHOD FOR MOUNTING A DYNAMIC SEAL INSIDE A BEARING RECEIVING A ROTATING SHAFT |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2334955Y (en) * | 1998-01-20 | 1999-08-25 | 张宪英 | Oil membrane floating load-uniformed planetary speed reducer |
| US6431552B1 (en) * | 1999-06-10 | 2002-08-13 | Improved Materials Strategies, Inc. | Rotary shaft sealing system |
| JP4489557B2 (en) * | 2004-10-21 | 2010-06-23 | 黒田精工株式会社 | Ball screw lubrication seal device |
| CN201347853Y (en) * | 2009-02-01 | 2009-11-18 | 王建军 | Sealing device for intermediate rod of drill pump |
| CN201666372U (en) * | 2010-04-19 | 2010-12-08 | 胡炜 | Oil seal adjusting device and speed reducer equipped with the adjusting device |
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2010
- 2010-04-19 CN CN2010101541444A patent/CN101839346B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878299A (en) * | 2012-10-19 | 2013-01-16 | 无锡京华重工装备制造有限公司 | Sealing structure of rotating main shaft |
| FR3104224A1 (en) * | 2019-12-10 | 2021-06-11 | Psa Automobiles Sa | SEALING SYSTEM AND PROCEDURE FOR CHANGING A SEAL |
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| Publication number | Publication date |
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| CN101839346A (en) | 2010-09-22 |
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Denomination of invention: Oil seal regulating device and reducer provided with regulating device Effective date of registration: 20131113 Granted publication date: 20120125 Pledgee: Bank of Dalian Co. Tianjin branch Pledgor: WORLD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Registration number: 2013120000052 |
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Denomination of invention: Oil seal regulating device and reducer provided with regulating device Effective date of registration: 20141114 Granted publication date: 20120125 Pledgee: Bank of Dalian Co. Tianjin branch Pledgor: WORLD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Registration number: 2014990000945 |
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Address after: 300402 Tianjin science and Technology Park of Beichen high road and Jingming road junction Patentee after: WARD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Address before: 300402 Tianjin science and Technology Park of Beichen high road and Jingming road junction Patentee before: WORLD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. |
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Denomination of invention: Oil seal regulating device and reducer provided with regulating device Effective date of registration: 20160412 Granted publication date: 20120125 Pledgee: Bank of Dalian Co. Tianjin branch Pledgor: WARD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Registration number: 2016120000014 |
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Denomination of invention: An oil seal adjusting device and a reducer provided with the adjusting device Effective date of registration: 20220610 Granted publication date: 20120125 Pledgee: Bank of China Limited Tianjin Hexi sub branch Pledgor: WARD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Registration number: Y2022120000027 |
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Denomination of invention: An oil seal adjustment device and a reducer equipped with the adjustment device Effective date of registration: 20230828 Granted publication date: 20120125 Pledgee: Bank of China Limited Tianjin Hexi sub branch Pledgor: WARD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Registration number: Y2023120000074 |
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