CN206001013U - A kind of shaft seal assembly and shaft sealer - Google Patents
A kind of shaft seal assembly and shaft sealer Download PDFInfo
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- CN206001013U CN206001013U CN201621035174.2U CN201621035174U CN206001013U CN 206001013 U CN206001013 U CN 206001013U CN 201621035174 U CN201621035174 U CN 201621035174U CN 206001013 U CN206001013 U CN 206001013U
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- disc
- seal assembly
- oil
- shaft seal
- axle
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Abstract
A kind of shaft seal assembly, it includes being sheathed on the disc of axle and is sheathed on oil distribution casing outside disc, and oil distribution casing has spill port, and disc can be rotatably arranged in oil return in the hole by oil distribution casing relatively；The inner surface that oil distribution casing forms spill port is the conical surface, the diameter of spill port one end with diameter greater than spill port near the outfan of axle away from one end of the outfan of axle.A kind of shaft sealer, it includes axle and above-mentioned shaft seal assembly, and disc fixed cover is located at axle.Spill port produces " pumping effect " to casing oil return, and sealing effectiveness is preferable and reliability is high.
Description
Technical field
This utility model is related to field of sealing technology, in particular to a kind of shaft seal assembly and shaft sealer.
Background technology
The sealing of existing reduction box or gearbox generally adopt oil sealing, v shaped ring sealing and one of felt seal or
Its simple combination of person, has a disadvantage in that sealing effectiveness is undesirable, long-play easily causes the reliability revealed and seal
Not high.
Utility model content
The purpose of this utility model is to provide a kind of shaft seal assembly, its can long-play and reliability relatively
High.
Another object of the present utility model is to provide a kind of shaft sealer, and it adopts above-mentioned shaft seal assembly sealing.
Embodiment of the present utility model is realized in：
A kind of shaft seal assembly, it includes being sheathed on the disc of axle and is sheathed on oil distribution casing outside disc, joins oil
Disk has spill port, and disc can be rotatably arranged in oil return in the hole by oil distribution casing relatively；Oil distribution casing forms the inner surface of spill port
For the conical surface, the diameter of spill port one end with diameter greater than spill port near the outfan of axle away from one end of the outfan of axle.
In this utility model preferred embodiment, the conical surface of above-mentioned shaft seal assembly is provided with oil return portion, and oil return portion is
Spiral projection or groove.
In this utility model preferred embodiment, the spiral projection of above-mentioned shaft seal assembly or the spiral side of groove
To for left-handed, dextrorotation or left-handed and dextrorotation combination.
In this utility model preferred embodiment, the outer wall positioned at oil return in the hole of the disc of above-mentioned shaft seal assembly
It is provided with first and gets rid of oily portion, first gets rid of the groove of axial direction or the projection that oily portion is around disc.
In this utility model preferred embodiment, above-mentioned shaft seal assembly also includes being sheathed on outside disc and connecting
Draw-off tray to the side of the close outfan of oil distribution casing.
In this utility model preferred embodiment, the draw-off tray of above-mentioned shaft seal assembly is provided with the second flange, and second
Flange is located remotely from the side of outfan；The inner side of the second flange forms the first appearance oil pocket, and disc is located at first to be held in oil pocket
Outer wall be provided with second and get rid of oily portion, second gets rid of the groove of axial direction or the projection that oily portion is around disc.
In this utility model preferred embodiment, the disc of above-mentioned shaft seal assembly also includes being arranged at disc
First flange of outer wall, draw-off tray is further opened with the second depressed part with the first flange gap cooperation.
In this utility model preferred embodiment, the draw-off tray of above-mentioned shaft seal assembly offers the second appearance oil pocket, the
Two depressed area are held oil pocket and second in first and are held between oil pocket；The outer wall that disc is located in the second appearance oil pocket is additionally provided with the
Three get rid of oily portion, and the 3rd gets rid of the groove of axial direction or the projection that oily portion is around disc.
In this utility model preferred embodiment, above-mentioned shaft seal assembly also includes drainback passage, and drainback passage includes
It is respectively arranged at first passage, second channel and the third channel being arranged at oil distribution casing of draw-off tray；First passage is along oil-collecting
The radial direction of disk extends, and second channel and third channel extend along the axial direction of draw-off tray respectively, first passage, second leads to
Road and third channel are sequentially communicated.
A kind of shaft sealer, it includes axle and above-mentioned shaft seal assembly, and disc fixed cover is located at axle.
The beneficial effect of shaft seal assembly of the present utility model and shaft sealer is：Shaft seal assembly includes disc
And it is sheathed on the oil distribution casing of disc, disc is sheathed on axle and with axle synchronous axial system, and oil distribution casing has is joined with disc
The spill port closing, the diameter of one end of the close outfan with diameter greater than spill port of one end away from outfan of spill port,
Spill port produces " pumping effect " to casing oil return, and sealing effectiveness is preferable and reliability is high.
Brief description
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, below will be to use required in embodiment
Accompanying drawing be briefly described it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the generalized section of shaft seal assembly of the present utility model and shaft sealer；
Fig. 2 is the generalized section of disc in shaft seal assembly of the present utility model；
Fig. 3 is the generalized section in the left-turn spiral shape oil return portion of oil distribution casing in shaft seal assembly of the present utility model；
Fig. 4 is the generalized section in the right hand helix shape oil return portion of oil distribution casing in shaft seal assembly of the present utility model；
Fig. 5 is the schematic cross-section of draw-off tray in shaft seal assembly of the present utility model；
Icon：100- shaft seal assembly；110- disc；111- first flange；113- gets rid of oily portion；114- first gets rid of oil
Portion；115- second gets rid of oily portion；116- the 3rd gets rid of oily portion；117- screwed hole；120- oil distribution casing；121- spill port；122- first is recessed
Sunken portion；The 125- conical surface；126- oil return portion；127- centrage；130- draw-off tray；131- second sleeve；132- second flange；133-
Third lip；134- first holds oil pocket；135- second holds oil pocket；136- second depressed part；137- mounting groove；138- cover plate；
140- oil sealing；150- drainback passage；151- first passage；152- second channel；153- third channel；154- fourth lane；
155- plug；200- shaft sealer；210- casing；220- axle；221- outfan；230- flange；241- clutch shaft bearing；242-
Second bearing.
Specific embodiment
Purpose, technical scheme and advantage for making this utility model embodiment are clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, is clearly and completely described it is clear that being retouched to the technical scheme in this utility model embodiment
The embodiment stated is a part of embodiment of this utility model, rather than whole embodiments.Generally described in accompanying drawing herein and
The assembly of this utility model embodiment illustrating can be arranged with various different configurations and design.
Therefore, below requirement is not intended to limit to the detailed description of the embodiment of the present utility model providing in the accompanying drawings
The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in this utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of not making creative work, all
Belong to the scope of this utility model protection.
It should be noted that：Similar label and letter represent similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then do not need it to be defined further and explains in subsequent accompanying drawing.
In description of the present utility model, it should be noted that the orientation of instruction or the position such as term " inner side ", " outside "
Relation is based on orientation shown in the drawings or position relationship, or when this utility model product uses the orientation usually put or
Position relationship, is for only for ease of and describes this utility model and simplify description, rather than instruction or the device or the unit that imply indication
Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
Additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that instruction or hint are relatively important
Property.
In addition it is also necessary to explanation in description of the present utility model, unless otherwise clearly defined and limited, term " sets
Put ", should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly " installation ", " connection "
Connect；Can be to be mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning in this utility model for the language.
First embodiment
Refer to Fig. 1, the present embodiment provides a kind of shaft seal assembly 100, it includes disc 110, oil distribution casing 120 and collection
Food tray 130, located at axle 220 and with axle 220 synchronous axial system, oil distribution casing 120 is sheathed on disc 110 to disc 110 fixed cover
Outer and connect to flange 230, it is outer and connect to oil distribution casing 120 that draw-off tray 130 is sheathed on disc 110.
Refer to Fig. 1 and Fig. 2, the outer wall of disc 110 is provided with the first flange 111 it should be understood that the first flange 111 and getting rid of
Oil ring 110 can be two independent parts or be integrally formed part.The end of disc 110 offers at least one screw thread
Hole 117.The outer surface of disc 110 is additionally provided with and gets rid of oily portion 113.Get rid of oily portion 113 and include spaced first and get rid of oily portion
114th, second get rid of oily portion 115 and the 3rd and get rid of oily portion 116.In the present embodiment, get rid of the axial direction that oily portion 113 is around disc 110
The groove in direction；It should be understood that the shape getting rid of oily portion 113 can be helical form or other shapes, and get rid of oily portion 113 and can also be
Annular projection.
First gets rid of oily portion 114 is located in spill port 121, and second gets rid of oily portion 115 is located in the first appearance oil pocket 134 (see Fig. 5),
3rd gets rid of oily portion 116 is located in the second appearance oil pocket 135 (see Fig. 5).First gets rid of oily portion 114, second gets rid of oily portion 115 and the 3rd and get rid of oil
Portion 116 is the groove of the axial direction around disc 110 respectively.In the present embodiment, offer five adjacent first to get rid of
114, one second, oily portion get rid of oily portion 115 and three the 3rd get rid of oily portion 116 it should be understood that the quantity getting rid of oily portion 113 can basis
Sealing intensity is selected.
Refer to Fig. 3 and Fig. 4, oil distribution casing 120 has spill port 121, disc 110 is located in spill port 121, and joins
The side of food tray 120 offers the first depressed part 122.The three-dimensional shape of spill port 121 is round platform or circular cone, spill port 121
Diameter away from one end of the close outfan 221 with diameter greater than spill port 121 of one end of outfan 221.Oil distribution casing 120 shape
The inner surface becoming spill port 121 is the conical surface 125.
The conical surface 125 is provided with oil return portion 126, and oil return portion 126 is spiral type projection it should be understood that oil return portion 126 can also be
Groove.Fig. 3 shows the oil return portion 126 of left-turn spiral wire shaped, and Fig. 4 shows the oil return portion 126 of right hand helix wire shaped；Should
Understand, oil return portion 126 can also be the combination of left-turn spiral wire shaped and right hand helix wire shaped.The spiral liter in oil return portion 126
The scope at angle is 1 degree to 40 degree.The centrage 127 of oil return portion 126 and oil distribution casing 120 or axis of rotation at an angle, make
When obtaining oil distribution casing 120 rotation, lubricating oil accelerates flowing around oil return portion 126.
Refer to Fig. 5, draw-off tray 130 includes second sleeve 131, connects the second flange of side to second sleeve 131
132 and the third lip 133 of the opposite side connecting to second sleeve 131.Second sleeve 131 offers and accommodates the of lubricating oil
Two appearance oil pockets 135, the inner side of the second flange 132 forms the first appearance oil pocket 134 accommodating lubricating oil.Draw-off tray 130 is further opened with
The second depressed part 136 connecting with the first appearance oil pocket 134.The inner side of third lip 133 is formed installs oil sealing 140 (see Fig. 1)
Mounting groove 137, the outside of oil sealing 140 is provided with cover plate 138 (see Fig. 1) to cover oil sealing 140, and cover plate 138 passes through securing member
Connect to draw-off tray 130.
Continue referring to Fig. 1, shaft seal assembly 100 is further opened with drainback passage 150, drainback passage 150 includes opening respectively
Located at the first passage 151 of draw-off tray 130 and second channel 152, it is opened in the third channel 153 of oil distribution casing 120 and opens up
Fourth lane 154 in flange 230.First passage 151 extends along the radial direction of draw-off tray 130, and second channel 152 is along oil-collecting
The axial direction of disk 130 extends, and third channel 153 extends along the axial direction of oil distribution casing 120, and fourth lane 154 is along flange 230
Axial direction extend.Second channel 152 apart from draw-off tray 130 distance be less than third channel 153 apart from draw-off tray 130 away from
From, that is, second channel 152 be located closer to axle 220.
First passage 151, second channel 152, third channel 153 and fourth lane 154 are unthreaded hole respectively.First passage
151 one end is connected and first passage 151 is connected with second channel 152 with the second appearance oil pocket 135, second channel 152 and the
Triple channel 153 connects, and third channel 153 is connected with fourth lane 154.The bottom of first passage 151 is provided with dismountable stifled
155.
Continue referring to Fig. 1, this utility model also provides a kind of shaft sealer 200, it includes casing 210 and installs
In the axle 220 of casing 210, axle 220 passes through clutch shaft bearing 241 respectively and second bearing 242 is attached to casing 210, clutch shaft bearing
241 and second bearing 242 be taper roll bearing respectively.In the present embodiment, axle 220 is gear shaft 220, i.e. axle 220 and tooth
Wheel is integrally formed.The axle 220 of shaft sealer 200 is sealed by above-mentioned shaft seal assembly 100.
Disc 110 is rotatable parts, and oil distribution casing 120 and draw-off tray 130 are fixed components.Specifically, casing 210 is installed
There is flange 230, clutch shaft bearing 241 is installed in the installing hole of flange 230, the blowout patche of clutch shaft bearing 241 is coordinated with axle 220.To get rid of
Oil ring 110 is fitted on axle 220, disc 110 and axle 220 interference fit, and disc 110 is with axle 220 synchronous rotary.Draw-off tray
130 and oil distribution casing 120 be sheathed on the outside of disc 110 respectively, draw-off tray 130 connects to oil distribution casing 120 near outfan 221
Side, oil distribution casing 120 and draw-off tray 130 are attached to one end of flange 230 respectively, form fixed component by securing member.Should
Understand, in the embodiment not having flange 230, directly oil distribution casing 120 and draw-off tray 130 can be attached to casing 210.
First flange 111 of disc 110 is coordinated with the second depressed part 136 of draw-off tray 130, and the second of draw-off tray 130
Flange 132 is coordinated with the first depressed part 121 of oil distribution casing 120.
Axle 220 can rotate in clutch shaft bearing 241 and second bearing 242, and lubricating oil passes through the passage of oil distribution casing 120
(not shown) lubricates to clutch shaft bearing 241, second bearing 242..Oil return portion 126 can be determined according to the direction of rotation of axle 220
Direction of rotation, when the direction of rotation of axle 220 determines, that is, the direction of rotation of axle 220 is left-handed or during dextrorotation, selects corresponding list
Oil return portion 126 to rotation direction helix；When axle 220 direction of rotation do not know when, that is, the direction of rotation of axle 220 include left-handed and
During dextrorotation, select the oil return portion 126 of corresponding bidirectional rotation helix.
Shaft seal assembly 100, in addition to including common seal with O ring, also includes following Pyatyi sealing.
Refer to Fig. 1 to Fig. 3, first order sealing is oil return sealing, disc 110 and oil distribution casing 120 cooperatively form the
Primary seal.Disc 110 is designed with multiple tracks and gets rid of oily portion 113, and the lubricating oil of leakage flows through and getting rid of oily portion 113 when getting rid of oily portion 113
Collect, lubricating oil rotates with disc 110, lubricating oil accelerates and gets rid of to joining oil by lubricating oil under the influence of centrifugal force
The conical surface 125 of disk 120.
Because spill port 121 is straight with diameter greater than the one end near outfan 221 away from one end of outfan 221
Footpath, according to fluid mechanics principle, liquid pressure in accelerator can reduce, and forms local depression area in inner side, to outside
Oil forms " pumping effect " or " pump efficiency is answered ", and the lubricating oil that will be far from one end of outfan 221 by spill port 121 sucks casing
210.When the conical surface 125 that lubricating oil is thrown to oil distribution casing 120 through getting rid of oily portion 113 to accelerate, lubricating oil continues along the conical surface 125
Accelerate rotation and along the conical surface 125 to oil return in casing 210, sealing effectiveness is preferable and reliability is high.
The conical surface 125 is provided with oil return portion 126, when lubricating oil accelerates to be thrown to the conical surface of oil distribution casing 120 through getting rid of oily portion 113
When 125, lubricating oil persistently accelerates rotation and to the internal oil return of casing 210, oil return portion 126 along the conical surface 125 and oil return portion 126
Further speed up the oil return of lubricating oil, decrease the leakage of lubricating oil.
Refer to Fig. 1, Fig. 2 and Fig. 5, second level sealing is centrifugal seal, second gets rid of oily portion 115 and the first appearance oil pocket 134
Cooperatively form the second level sealing.If still there being lubricating oil to flow out from the spill port 121 of oil distribution casing 120, close by the second level
Envelope is sealed.The lubricating oil flowing out from spill port 121 collects in second and gets rid of oily portion 115, and disc 110 is with 220 turns of axle
When dynamic, the centrifugal force of axle 220 gets rid of lubricating oil into the first appearance oil pocket 134, forms centrifugal seal.
Third level sealing is clearance seal, the first flange 111 of disc 110 and the second depressed part 136 of draw-off tray 130
Cooperatively form the third level sealing.If there still have lubricating oil to cross the first flange 111 inflow second from the first appearance oil pocket 134 to be recessed
Sunken portion 136, then sealed by the third level.Form less gap, example between first flange 111 and draw-off tray 130
Scope as gap is 0.01mm to 0.5mm.Due to gap very little, lubricating oil passes through to be subject to resistance during this gap, and lubricating oil exists
Form sealing oil film in this gap.
Fourth stage sealing is centrifugal seal, and the 3rd of disc 110 gets rid of the second appearance oil pocket of oily portion 116 and draw-off tray 130
135 fourth stage that cooperatively forms seals.If still there being lubricating oil to flow into the second appearance oil pocket 135 from the second depressed part 136, lead to
Cross the fourth stage to be sealed.The lubricating oil flowing out from spill port 121 collects in the 3rd and gets rid of oily portion 116, and disc 110 is with axle
220 when rotating together, and the centrifugal force of axle 220 makes the 3rd to get rid of oily portion 116 to get rid of lubricating oil into the second appearance oil pocket 135, form centrifugation
Sealing.
Level V sealing is oil sealing 140.If still having lubricating oil to hold oil pocket 135 from second flow into installation oil sealing 140
Mounting groove 137, then sealed by level V.Oil sealing 140 only plays the effect of auxiliary seal it should be understood that the oil in outside
Envelope 140 can be replaced by the dust ring of other forms.
It should be understood that shaft seal assembly 100 can include one or more levels in above-mentioned Pyatyi sealing.In one example,
Shaft seal assembly 100 includes disc 110 and oil distribution casing 120, it is possible to achieve above-mentioned first order sealing and second level sealing；Another
In one example, shaft seal assembly 100 includes disc 110, oil distribution casing 120 and draw-off tray 130, it is possible to achieve the above-mentioned first order
Seal to level V sealing.
Reclaim the lubricating oil of leakage by drainback passage 150, the second lubricating oil holding in oil pocket 135 flows into first passage
151, flow into second channel 152 from first passage 151, flow into third channel 153 from second channel 152, flow from third channel 153
Enter fourth lane 154, then be back to inside casing 210 from fourth lane 154, thus lubricating oil can recycle, keep away simultaneously
Exempt from due to oil return freely do not cause lubricating oil be enriched with sealing structures at different levels reach certain pressure after formed reveal.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this
For the technical staff in field, this utility model can have various modifications and variations.All of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvement made etc., should be included within protection domain of the present utility model.
Claims (10)
1. a kind of shaft seal assembly (100) is it is characterised in that it includes being sheathed on the disc (110) of axle (220) and sheathed
In described disc (110) oil distribution casing (120) outward, described oil distribution casing (120) has spill port (121), described disc
(110) can relatively described oil distribution casing (120) be rotatably arranged in described spill port (121)；Described oil distribution casing (120) forms institute
The inner surface stating spill port (121) is the conical surface (125), and described spill port (121) is away from the outfan (221) of described axle (220)
One end with diameter greater than described spill port (121) near described axle (220) described outfan (221) one end diameter.
2. shaft seal assembly according to claim 1 is it is characterised in that the described conical surface (125) is provided with oil return portion
(126), described oil return portion (126) is spiral projection or groove.
3. shaft seal assembly according to claim 2 is it is characterised in that the spiral side of described spiral projection or groove
To for left-handed, dextrorotation or left-handed and dextrorotation combination.
4. shaft seal assembly according to claim 2 it is characterised in that described disc (110) positioned at described oil return
Outer wall in hole (121) is provided with first and gets rid of oily portion (114), and described first to get rid of oily portion (114) be around described disc (110)
The groove of axial direction or projection.
5. shaft seal assembly according to claim 4 it is characterised in that described shaft seal assembly also include being sheathed on described
Disc (110) is outward and the draw-off tray of the side of close described outfan (221) that connects to described oil distribution casing (120)
(130).
6. shaft seal assembly according to claim 5 is it is characterised in that described draw-off tray (130) is provided with the second flange
(132), described second flange (132) is located remotely from the side of described outfan (221)；The inner side of described second flange (132)
Form first and hold oil pocket (134), the outer wall that described disc (110) is located in described first appearance oil pocket (134) is provided with second
Get rid of oily portion (115), described second gets rid of groove or the projection of the axial direction that oily portion (115) is around described disc (110).
7. shaft seal assembly according to claim 6 is it is characterised in that described disc (110) also includes being arranged at institute
State first flange (111) of the outer wall of disc (110), described draw-off tray (130) is further opened with and described first flange (111)
Second depressed part (136) of gap cooperation.
8. shaft seal assembly according to claim 7 is it is characterised in that described draw-off tray (130) offers the second appearance oil
Chamber (135), described second depressed part (136) is located at described first and holds between oil pocket (134) and described second appearance oil pocket (135)；
The outer wall that described disc (110) is located in described second appearance oil pocket (135) is additionally provided with the 3rd and gets rid of oily portion (116), and described the
Three grooves getting rid of the axial direction that oily portion (116) is around described disc (110) or projection.
9. shaft seal assembly according to claim 5 is it is characterised in that described shaft seal assembly also includes drainback passage
(150), described drainback passage (150) includes being respectively arranged at first passage (151), the second channel of described draw-off tray (130)
And be arranged at the third channel (153) of described oil distribution casing (120) (152)；Described first passage (151) is along described draw-off tray
(130) radial direction extends, and described second channel (152) and described third channel (153) are respectively along described draw-off tray (130)
Axial direction extend, described first passage (151), described second channel (152) and described third channel (153) connect successively
Logical.
10. a kind of shaft sealer (200) is it is characterised in that it includes any one of axle (220) and claim 1-9 institute
The shaft seal assembly stated, described disc (110) fixed cover is located at described axle (220).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621035174.2U CN206001013U (en) | 2016-08-31 | 2016-08-31 | A kind of shaft seal assembly and shaft sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621035174.2U CN206001013U (en) | 2016-08-31 | 2016-08-31 | A kind of shaft seal assembly and shaft sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206001013U true CN206001013U (en) | 2017-03-08 |
Family
ID=58194083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621035174.2U Active CN206001013U (en) | 2016-08-31 | 2016-08-31 | A kind of shaft seal assembly and shaft sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206001013U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519543A (en) * | 2018-12-29 | 2019-03-26 | 武昌船舶重工集团有限公司 | A kind of swing type hydraulic machine |
| CN110080883A (en) * | 2019-06-04 | 2019-08-02 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of online outer circulation auxiliary device of minute leakage lubricating oil for sealing device |
-
2016
- 2016-08-31 CN CN201621035174.2U patent/CN206001013U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519543A (en) * | 2018-12-29 | 2019-03-26 | 武昌船舶重工集团有限公司 | A kind of swing type hydraulic machine |
| CN110080883A (en) * | 2019-06-04 | 2019-08-02 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of online outer circulation auxiliary device of minute leakage lubricating oil for sealing device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 100011 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee after: Sany Heavy Energy Co.,Ltd. Address before: 100011 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee before: SANY HEAVY ENERGY Co.,Ltd. Address after: 100011 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee after: SANY HEAVY ENERGY Co.,Ltd. Address before: 100011 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee before: SANY HEAVY ENERGY EQUIPMENT Co.,Ltd. |