CN101629666A - Oil path sealing device in vacuum dryer - Google Patents
Oil path sealing device in vacuum dryer Download PDFInfo
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- CN101629666A CN101629666A CN200810021337A CN200810021337A CN101629666A CN 101629666 A CN101629666 A CN 101629666A CN 200810021337 A CN200810021337 A CN 200810021337A CN 200810021337 A CN200810021337 A CN 200810021337A CN 101629666 A CN101629666 A CN 101629666A
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- pipe
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- oil inlet
- rotating shaft
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Abstract
The invention discloses an oil path sealing device in a vacuum dryer, which can prolong the service life and improve the sealing effect. The oil path sealing device in the vacuum dryer comprises a rotary shaft, an oil inlet pipe and an oil return pipe, wherein the oil return pipe is arranged in an inner cavity of the rotary shaft and the oil inlet pipe; an oil return cover at one end part of the oil inlet pipe is internally provided with an oil return port communicated with the oil return pipe; the pipe wall of the oil inlet pipe is provided with a connecting pipe; an oil inlet cover of the connecting pipe is internally provided with an oil inlet; the other end part of the oil inlet pipe is provided with a socketed pipe seat; a socketed pipe is fixed on the socketed pipe seat; the pipe cavity of the socketed pipe is provided with a float ring jacket, a float ring, a static ring, steel balls and a corrugated pipe; the float ring jacket is arranged at the end part of the rotary shaft; the float ring is sleeved on the float ring jacket; and the static ring is radially positioned in the pipe cavity of the socketed pipe through the steel balls, and is pressed together with the float ring through the corrugated pipe. The oil path sealing device in the vacuum dryer is mainly used for chemical fiber industries.
Description
Technical field
The present invention relates to vacuum drier, refer more particularly to the oil path sealing device in the vacuum drier.
Background technique
In chemical fibre industry, vacuum drier drives rotary drum by motor and speed reducer and rotates, by outer heating conduction oil (hydrogenated terphenyl) is heated to about 280 ℃, be transported to by canned motorpump in the rotary drum chuck of rotation, hold in the rotary drum be need heating such as particles such as polyester slices, like this, the conduction oil that flows in the rotary drum chuck by rotary drum to the particle heating that circulates, slough the moisture content in the particle, make particle drying and tackify.In vacuum drier, the oil circuit in the rotary drum chuck is connected with extraneous oil circuit by oil path sealing device.As Fig. 1, shown in Figure 2, the concrete structure of this oil path sealing device comprises: be movably arranged on the rotating shaft 1 on the frame 10, oil inlet pipe 5 and return tube 4, return tube 4 is located in the inner chamber and oil inlet pipe 5 of rotating shaft 1, one end end of oil inlet pipe 5 is provided with oil return lid 7, offer the return opening 71 that is connected with return tube 4 in the oil return lid 7, the tube wall of oil inlet pipe 5 is provided with the connecting tube 8 that communicates with oil inlet pipe 5, connecting tube 8 is provided with feed cover 6, offer the filler opening 61 that communicates with connecting tube 8 in the feed cover 6, being provided with the soft packing that is used to seal between rotating shaft 1 and the oil inlet pipe 5---asbestos packing 2, the end face in the rotating shaft 1 are provided with the gland 3 that is used to compress asbestos packing 2.Its working principle is: between rotating shaft 1 and oil inlet pipe 5, fill out asbestos packing 2, the asbestos packing of inserting 2 is compressed, make asbestos packing 2 that deformation take place with gland 3, thereby be close on the outer wall of the inwall of rotating shaft 1 inner chamber and oil inlet pipe 5, make sealing between rotating shaft 1 and the oil inlet pipe 5.In use, asbestos packing 2 is wearing and tearing constantly, and, owing to rotating shaft 1 and oil inlet pipe 5 not rounding cause between the two gap not exclusively well-balanced and rotating shaft 1 and oil inlet pipe 5 and asbestos packing 2 contacted very not bright and clean surfaces, the wearing and tearing of asbestos packing 2 are accelerated in the capital, otherwise how long, conduction oil will be from the slit between rotating shaft 1 and the oil inlet pipe 5 to external leakage, thereby has influence on the normal use of vacuum drier.
Summary of the invention
A technical problem to be solved by this invention is: provide a kind of and increase the service life, improve the oil path sealing device in the vacuum drier of sealing effect.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the oil path sealing device in the vacuum drier, comprise: be movably arranged on the rotating shaft on the frame, oil inlet pipe and return tube, return tube is located in the inner chamber and oil inlet pipe of rotating shaft, one end end of oil inlet pipe is provided with the oil return lid, offer the return opening that is connected with return tube in the oil return lid, the tube wall of oil inlet pipe is provided with the connecting tube that communicates with oil inlet pipe, connecting tube is provided with feed cover, offer the filler opening that communicates with connecting tube in the feed cover, the other end end of oil inlet pipe is provided with the socket base, the socket base fixes with the socketed pipe that is contained in the rotating shaft by bearing housing, be provided with the floating ring sheath in the tube chamber of socketed pipe, floating ring, stationary ring, steel ball and bellows, the floating ring sheath is arranged on the end of rotating shaft, floating ring is sleeved on the floating ring sheath, and stationary ring is radially positioned in the socketed pipe tube chamber by steel ball, and stationary ring is pressed on floating ring by bellows.
Also be provided with spring in the described socketed pipe, described stationary ring also is pressed on floating ring by spring.
Also be provided with the bellows sheath in the described socketed pipe, bellows sheath and socketed pipe base fix, and the ripple ripple is sleeved on the bellows sheath.
Offer at least one vent hole on the described socketed pipe tube wall.
Be provided with the side seal circle between described socketed pipe and the rotating shaft, be provided with end-face seal ring between described socketed pipe and the socket base.
The invention has the beneficial effects as follows: the rotating shaft among the present invention is movably arranged on socketed pipe by bearing, socketed pipe is fixed together by socket base and oil inlet pipe, and the floating ring of the end face of rotating shaft on being arranged on the floating ring sheath is pressed on by stationary ring, bellows and spring.This end face seal structure of the present invention, sealing effect is better, longer service life, and the not rounding of rotating shaft that can not cause because of the foozle of rotating shaft and oil inlet pipe and oil inlet pipe and have influence on the effect of its sealing.In addition, be arranged on the end-face seal ring between socketed pipe and the socket base and be arranged on socketed pipe and rotating shaft between the side seal circle all further improved the sealing effect of oil path sealing device of the present invention.
Description of drawings
Fig. 1 is the structural representation that the vacuum drier of the described oil path sealing device of background technique is installed;
Fig. 2 is the structure for amplifying schematic representation of A part among Fig. 1;
Among Fig. 1 to Fig. 2: 1, rotating shaft, 2, asbestos packing, 3, gland, 4, return tube, 5, oil inlet pipe, 6, feed cover, 61, filler opening, 7, the oil return lid, 71, return opening, 8, connecting tube, 10, frame.
Fig. 3 is the structural representation that the vacuum drier of the described oil path sealing device of invention is installed;
Fig. 4 is that B partly is a structure for amplifying schematic representation of the present invention among Fig. 3;
Among Fig. 3 to Fig. 4: 1, rotating shaft, 2, floating ring, 3, stationary ring, 4, steel ball, 5, spring, 6, the floating ring sheath, 7, socketed pipe, 71, vent hole, 8, feed cover, 81, filler opening, 9, the oil return lid, 91, return opening, 10, return tube, 11, oil inlet pipe, 12, end-face seal ring, 13, connecting tube, 14, socket base, 15, shrouding, 16, the side seal circle, 17, locating slot, 18, frame, 19, bearing, 20, the bellows sheath, 21, bellows.
Embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
As shown in Figure 3 and Figure 4, oil path sealing device in the vacuum drier of the present invention, comprise: be movably arranged on the rotating shaft 1 on the frame 18, oil inlet pipe 11 and return tube 10, return tube 10 is located in the inner chamber and oil inlet pipe 11 of rotating shaft 1, one end end of oil inlet pipe 11 is provided with oil return lid 9, offer the return opening 91 that is connected with return tube 10 in the oil return lid 9, the tube wall of oil inlet pipe 11 is provided with the connecting tube 13 that communicates with oil inlet pipe 11, connecting tube 13 is provided with feed cover 8, offer the filler opening 81 that communicates with connecting tube 13 in the feed cover 8, the other end end of oil inlet pipe 11 is provided with socket base 14, socket base 14 fixes with the socketed pipe 7 that is sleeved in the rotating shaft 1 by bearing 19, be provided with floating ring sheath 6 in the tube chamber of socketed pipe 7, floating ring 2, stationary ring 3, bellows 21, steel ball 4 and spring 5, floating ring sheath 6 is arranged on the end of rotating shaft 1, floating ring 2 is sleeved on the floating ring sheath 6, stationary ring 3 is positioned in the tube chamber of socketed pipe 7 by three steel balls 4, its concrete set-up mode is: offer three resettlement grooves that match with steel ball 4 on the described stationary ring 3, offer three guiding grooves that match with steel ball 4 on the wall of the lumen of socketed pipe 7, stationary ring 3 is radially positioned in the socketed pipe 7 by steel ball 4---and radially can not rotate, but can in socketed pipe 7, slide; Stationary ring 3 is pressed on floating ring 2 by the bellows 21 that is set together with it on the one hand, be pressed on floating ring 2 by spring 5 on the other hand, the main effect of spring 5 here is: behind end wear, spring 5 can promote rotating shaft 1 and stationary ring 3 continues to be adjacent to floating ring 2, and spring 5 also plays buffer function, can compensate drum rotating shaft 1 beat and process the end face precision not enough and between the rotating shaft 1, floating ring 2 and the stationary ring 3 that cause end face do not fit; In addition, when bellows 21 lost bullet, spring 5 can also make the end face between rotating shaft 1, floating ring 2 and the stationary ring 3 continue to fit tightly.In the present embodiment, in order to prevent that bellows 21 from losing bullet because of temperature is too high, on described socketed pipe 7, offer two vent holes that are used to dispel the heat 71, in order to prevent that bellows 21 is owing to washing away of conduction oil produces wearing and tearing, be provided with bellows sheath 20 in bellows 21, bellows sheath 20 fixes with socketed pipe base 14; In addition, be provided with side seal circle 16 between described socketed pipe 7 and the rotating shaft 1, be provided with end-face seal ring 12 between described socketed pipe 7 and the socket base 14.
Working principle of the present invention is: the stationary ring 3 that is set together by and bellows 21 and be arranged on rotating shaft 1 and stationary ring 3 between a floating ring 2 tighten closely connected splice grafting with stationary ring 3 on the plane of axis normal respectively and touch, the hydrogenated terphenyl conduction oil is transported in the chuck of rotary drum through the inner chamber of stationary ring 3, floating ring 2 and rotating shaft 1, to reach the hydronic purpose of rotary drum inner bag.
Rotating shaft 1 among the present invention is movably arranged on socketed pipe 7 by bearing 19, socketed pipe 7 is fixed together by socket base 14 and oil inlet pipe 11, and the floating ring 2 of the end face of rotating shaft 1 on being arranged on floating ring sheath 6 is pressed on by stationary ring 3, bellows 21 and spring 5.This end face seal structure of the present invention, sealing effect is better, longer service life, and the not rounding of rotating shaft 1 that can not cause because of the foozle of rotating shaft 1 and oil inlet pipe 11 and oil inlet pipe 11 and have influence on the effect of its sealing.In addition, be arranged on the end-face seal ring 12 between socketed pipe 7 and the socket base 14 and be arranged on socketed pipe 7 and rotating shaft 1 between side seal circle 16 all further improved the sealing effect of oil path sealing device of the present invention.
Claims (6)
1. the oil path sealing device in the vacuum drier, comprise: be movably arranged on the rotating shaft on the frame, oil inlet pipe and return tube, return tube is located in the inner chamber and oil inlet pipe of rotating shaft, one end end of oil inlet pipe is provided with the oil return lid, offer the return opening that is connected with return tube in the oil return lid, the tube wall of oil inlet pipe is provided with the connecting tube that communicates with oil inlet pipe, connecting tube is provided with feed cover, offer the filler opening that communicates with connecting tube in the feed cover, it is characterized in that: the other end end of oil inlet pipe is provided with the socket base, the socket base fixes with the socketed pipe that is contained in the rotating shaft by bearing housing, be provided with the floating ring sheath in the tube chamber of socketed pipe, floating ring, stationary ring, steel ball and bellows, the floating ring sheath is arranged on the end of rotating shaft, floating ring is sleeved on the floating ring sheath, stationary ring is radially positioned in the socketed pipe tube chamber by steel ball, and stationary ring is pressed on floating ring by bellows.
2. oil path sealing device as claimed in claim 1 is characterized in that: also be provided with spring in the described socketed pipe, described stationary ring also is pressed on floating ring by spring.
3. oil path sealing device as claimed in claim 1 is characterized in that: also be provided with the bellows sheath in the described socketed pipe, bellows sheath and socketed pipe base fix, and bellows is sleeved on the bellows sheath.
4, as claim 1,2 or 3 described oil path sealing devices, it is characterized in that: offer at least one vent hole on the described socketed pipe tube wall.
5. as claim 1,2 or 3 described oil path sealing devices, it is characterized in that: be provided with the side seal circle between described socketed pipe and the rotating shaft, be provided with end-face seal ring between described socketed pipe and the socket base.
6. oil path sealing device as claimed in claim 4 is characterized in that: be provided with the side seal circle between described socketed pipe and the rotating shaft, be provided with end-face seal ring between described socketed pipe and the socket base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810021337A CN101629666A (en) | 2008-07-18 | 2008-07-18 | Oil path sealing device in vacuum dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810021337A CN101629666A (en) | 2008-07-18 | 2008-07-18 | Oil path sealing device in vacuum dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101629666A true CN101629666A (en) | 2010-01-20 |
Family
ID=41574884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810021337A Pending CN101629666A (en) | 2008-07-18 | 2008-07-18 | Oil path sealing device in vacuum dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101629666A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561654A (en) * | 2017-12-19 | 2018-09-21 | 广州市昊志机电股份有限公司 | A kind of rotary joint |
| CN114321381A (en) * | 2022-01-07 | 2022-04-12 | 郑州天一萃取科技有限公司 | Bottom sealing structure of upper and lower double-support type centrifugal extractor |
-
2008
- 2008-07-18 CN CN200810021337A patent/CN101629666A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561654A (en) * | 2017-12-19 | 2018-09-21 | 广州市昊志机电股份有限公司 | A kind of rotary joint |
| CN114321381A (en) * | 2022-01-07 | 2022-04-12 | 郑州天一萃取科技有限公司 | Bottom sealing structure of upper and lower double-support type centrifugal extractor |
| CN114321381B (en) * | 2022-01-07 | 2024-02-06 | 郑州天一萃取科技有限公司 | Bottom sealing structure of upper and lower double-support centrifugal extractor |
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Open date: 20100120 |