CN205401721U - Electronic flapper liquid packing seal structure - Google Patents
Electronic flapper liquid packing seal structure Download PDFInfo
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- CN205401721U CN205401721U CN201620184210.5U CN201620184210U CN205401721U CN 205401721 U CN205401721 U CN 205401721U CN 201620184210 U CN201620184210 U CN 201620184210U CN 205401721 U CN205401721 U CN 205401721U
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- backing plate
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- rotating shaft
- packing seal
- seal chamber
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Abstract
The utility model discloses an electronic flapper liquid packing seal structure, it includes pivot, bearing frame, and packing seal chamber, through -hole are seted up to the bearing frame, and the through -hole and the packing seal chamber of bearing frame are passed in proper order in the pivot, the packing seal intracavity inlays in the periphery of pivot and is equipped with seal assembly, and seal assembly peripheral and be the flaky inboard backing plate of circle, outside backing plate respectively including suit respectively in the pivot, and inboard backing plate lies in the distolateral of outside backing plate and inboard backing plate and outside backing plate interval arrangement, load between inboard backing plate and the outside backing plate with the liquid packing of the outer periphery laminating of pivot, the outer end opening part in packing seal chamber install support inwards press outside the gland of backing plate. Through the structure design, the utility model has the advantages of novel in design, reliable and stable nature is good, pivot when it can solve the traditional packing packing seal of electronic flapper use effectively and the wearing and tearing of axle sleeve, a leakage difficult problem, and can reduce power consumption effectively.
Description
Technical field
This utility model relates to electric lock pneumatic device technical field, particularly relates to a kind of electric lock pneumatic device liquid packing sealing structure.
Background technology
Existing electric lock pneumatic device is generally adopted traditional oil immersion asbestos packing or oil immersion cotton yarn packing, in actual use procedure, conventional filler seals structure and there is following defect, particularly as follows: 1, packing filling directly contacts with rotating shaft, and relatively rotate, axle sleeve causes rotating shaft or axle sleeve abrasion, so must periodically or non-periodically be changed；2, the friction of packing and rotating shaft or shaft room, causes motor effective power to reduce, and consumes electric energy, sometimes even chooses 5%-l0%.
It addition, the principle sealed from conventional filler, the passage that fluid can leak in annular seal space has three places: first fluid penetrates fibrous material and causes leakage；Its two be between filler and filler casing leak；Its three be between filler and axle surface leak.
Utility model content
The purpose of this utility model is in that to provide a kind of electric lock pneumatic device liquid packing sealing structure for the deficiencies in the prior art, this electric lock pneumatic device liquid packing sealing structure is novel in design, reliability is good, it can efficiently solve rotating shaft when electric lock pneumatic device uses tradition packing packing seal and the abrasion of axle sleeve, a leakage difficult problem, and can be effectively reduced power attenuation.
For reaching above-mentioned purpose, this utility model is achieved through the following technical solutions.
A kind of electric lock pneumatic device liquid packing sealing structure, include rotating shaft and the bearing block of the housing being installed in electric lock pneumatic device respectively, rotating shaft be horizontal cross arrange and bearing block match with rotating shaft, the core of bearing block offers the packing seal chamber towards outward opening, the bottom in packing seal chamber offer completely through through hole, rotating shaft sequentially passes through through hole and the packing seal chamber of bearing block；
Packing seal intracavity is embedded with black box in the periphery of rotating shaft, black box includes and is set with in rotating shaft periphery and respectively in the inner side backing plate of disc-shaped, outside backing plate, inner side backing plate is positioned at the side of backing plate, outside and inner side backing plate and backing plate interval, outside layout, being filled with, between inner side backing plate and outside backing plate, the liquid packing that the outer circumference surface with rotating shaft is fitted, the outer end opening place in packing seal chamber is equiped with the gland compressing outside backing plate inwardly.
Wherein, the outer surface of described bearing block offers hand-hole that is upwardly opening and that connect with described packing seal chamber, and hand-hole is fitted with ball valve.
Wherein, the edge part of described gland is spirally connected by hexagon-headed bolt and described bearing block.
The beneficial effects of the utility model are: a kind of electric lock pneumatic device liquid packing sealing structure described in the utility model, it includes rotating shaft, bearing block, and bearing block offers packing seal chamber, through hole, and rotating shaft sequentially passes through through hole and the packing seal chamber of bearing block；Packing seal intracavity is embedded with black box in the periphery of rotating shaft, black box includes and is set with in rotating shaft periphery and respectively in the inner side backing plate of disc-shaped, outside backing plate, inner side backing plate is positioned at the side of backing plate, outside and inner side backing plate and backing plate interval, outside layout, being filled with, between inner side backing plate and outside backing plate, the liquid packing that the outer circumference surface with rotating shaft is fitted, the outer end opening place in packing seal chamber is equiped with the gland compressing outside backing plate inwardly.Designed by said structure, the advantage that this utility model has modern design, reliability is good, it can efficiently solve rotating shaft when electric lock pneumatic device uses tradition packing packing seal and the abrasion of axle sleeve, a leakage difficult problem, and can be effectively reduced power attenuation.
Accompanying drawing explanation
Below with accompanying drawing, this utility model is further detailed, but the embodiment in accompanying drawing is not constituted any restriction of the present utility model.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the liquid packing of the present utility model view when rotating shaft activity.
Include in fig. 1 and 2:
1 rotating shaft 2 bearing block
21 packing seal chamber 22 through holes
23 hand-hole 3 black boies
Backing plate outside backing plate 32 inside 31
33 liquid packing 4 glands
5 hexagon-headed bolt 61 rotating layers
The 62 motionless layers of friction area 63.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is illustrated.
As shown in Figure 1, a kind of electric lock pneumatic device liquid packing sealing structure, include rotating shaft 1 and rotating shaft 1 bearing of the housing being installed in electric lock pneumatic device respectively, rotating shaft 1 is arranged in horizontal cross and rotating shaft 1 bearing matches with rotating shaft 1, the core of rotating shaft 1 bearing offers the packing seal chamber 21 towards outward opening, the bottom in packing seal chamber 21 offer completely through through hole 22, rotating shaft 1 sequentially passes through through hole 22 and the packing seal chamber 21 of rotating shaft 1 bearing.
Further, it is embedded with black box 3 in the periphery of rotating shaft 1 in packing seal chamber 21, black box 3 includes and is set with in rotating shaft 1 periphery and respectively in the inner side backing plate 31 of disc-shaped, outside backing plate 32, inner side backing plate 31 is positioned at the side of backing plate 32, outside and inner side backing plate 31 and outside backing plate 32 interval layout, being filled with, between inner side backing plate 31 and outside backing plate 32, the liquid packing 33 that the outer circumference surface with rotating shaft 1 is fitted, the outer end opening place in packing seal chamber 21 is equiped with the gland 4 compressing outside backing plate 32 inwardly.
It should further be noted that as it is shown in figure 1, the outer surface of bearing block 2 offers hand-hole 23 that is upwardly opening and that connect with packing seal chamber 21, hand-hole 23 is fitted with ball valve.In utility model works process, when being in normal operation, ball valve is kept to close；When through long-play, filler loss gradually when seepage occurs, the rapid pipe connecting of dedicated liquid packing injection gun is connected to ball valve, ball valve is threaded to open mode, can by dedicated liquid packing injection gun toward filling stuffing in packing seal chamber 21, until the filler in packing seal chamber 21 reaches stable dynamic equilibrium with axle and seals, can again realize effective sealing.
Need to being explained further, being filled in the liquid packing 33 between inner side backing plate 31 and outside backing plate 32 can keep fit-state with the outer circumference surface moment of rotating shaft 1, thus reaching the effect of sealing and making medium not reveal.Compared with tradition packing, the liquid packing 33 that this utility model adopts has the following advantages, particularly as follows:
1, No leakage and sealing are reliable, it is to avoid the series of problems brought because of leakage；The liquid packing 33 that this utility model adopts can be fully solved a leakage difficult problem for common fillers so that packing seal chamber 21 no longer leaks, such that it is able to the problem avoiding bringing because of leakage completely.Wherein, liquid packing 33 packing seal mechanism had both combined mechanical seal and gland sealed feature, the shortcoming simultaneously also solving them；This liquid packing 33 is the mixture of a kind of clay shape, it is mainly by graphite, tiny PTFE, shorter fibers etc. form, these material friction coefficients are low, between mixture, van der Waals' force is little, in the rotary movement of rotating shaft 1, as shown in Figure 2, fiber in liquid packing 33 can be wrapped in rotating shaft 1, and along with rotating shaft 1 is synchronously performed rotation, and then form a rotating layer 61, this rotating layer 61 countershaft 1 serves certain protective layer effect, avoid the abrasion of countershaft 1 external diameter, along with the diameter of rotating layer 61 incrementally increases, the winding ability of fiber will progressively be weakened by rotating shaft 1；Those fillers could not being intertwined with rotating shaft 1, will remain geo-stationary with packing seal chamber 21 inwall, form a motionless layer 63, and such friction area 62 is formed for the centre at filler, rather than is formed between filler and rotating shaft 1；The existing graphite of frictional layer filler has again shorter fiber, produces slight friction in relative movement, and this just will produce the runner very much like with labyrinth sealing, it is easy to forms liquid film layer by layer, thus preventing medium to leak out.When rotating shaft 1 stops operating, this circle packing contacted with medium, under liquid static pressure effect, makes filler create deformation, is closed by the labyrinth seal clearance of frictional layer, stop medium to leak out；
2, abrasion will not be caused by countershaft 1, it is not necessary to change axle sleeve, it is possible to reduce the stock of standby redundancy, reduce production cost；
3, power attenuation is low, and novel seal is close to non-contacting seal, and its power attenuation only accounts for the 2%-3% of rotating shaft 1 power；
4, easy care, can open hand-hole 23 under equipment operation state, and filler injection can be realized effective sealing again during maintenance；
5, consumption is little, and operating cost is cheap.
Summary situation is known, designed by said structure, the advantage that this utility model has modern design, reliability is good, it can efficiently solve the rotating shaft 1 when electric lock pneumatic device uses tradition packing packing seal and the abrasion of axle sleeve, a leakage difficult problem, and can be effectively reduced power attenuation.
Need to further point out, for electric lock pneumatic device, the inner surface of its housing and the blade of rotor can be respectively coated with the SiC coating of superslide, wherein, SiC coating can strengthen the wearability of shell inner surface and rotor blade effectively, it also is able to be effectively reduced dust adsorption power simultaneously, and then reaches to prevent the purpose of blocking.
As preferred embodiment, as it is shown in figure 1, the edge part of gland 4 is spirally connected by hexagon-headed bolt 5 and rotating shaft 1 bearing.Certainly, above-mentioned bearing block 2 is not intended that restriction of the present utility model with the assembly connection mode of gland 4.
Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this specification content should not be construed as restriction of the present utility model.
Claims (3)
1. an electric lock pneumatic device liquid packing sealing structure, it is characterized in that: include rotating shaft (1) and the bearing block (2) of the housing being installed in electric lock pneumatic device respectively, rotating shaft (1) is arranged in horizontal cross and bearing block (2) matches with rotating shaft (1), the core of bearing block (2) offers the packing seal chamber (21) towards outward opening, the bottom in packing seal chamber (21) offer completely through through hole (22), rotating shaft (1) sequentially passes through through hole (22) and packing seal chamber (21) of bearing block (2)；
It is embedded with black box (3) in the periphery of rotating shaft (1) in packing seal chamber (21), black box (3) includes and is set with and respectively inner side backing plate (31) in disc-shaped peripheral in rotating shaft (1), outside backing plate (32), inner side backing plate (31) is positioned at side and inner side backing plate (31) and outside backing plate (32) the interval layout in outside backing plate (32), it is filled with, between inner side backing plate (31) and outside backing plate (32), the liquid packing (33) that the outer circumference surface with rotating shaft (1) is fitted, the outer end opening place in packing seal chamber (21) is equiped with the gland (4) compressing outside backing plate (32) inwardly.
2. a kind of electric lock pneumatic device liquid packing sealing structure according to claim 1, it is characterized in that: the outer surface of described bearing block (2) offers hand-hole (23) that is upwardly opening and that connect with described packing seal chamber (21), and hand-hole (23) is fitted with ball valve.
3. a kind of electric lock pneumatic device liquid packing sealing structure according to claim 2, it is characterised in that: the edge part of described gland (4) is spirally connected by hexagon-headed bolt (5) and described bearing block (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620184210.5U CN205401721U (en) | 2016-03-11 | 2016-03-11 | Electronic flapper liquid packing seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620184210.5U CN205401721U (en) | 2016-03-11 | 2016-03-11 | Electronic flapper liquid packing seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205401721U true CN205401721U (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620184210.5U Active CN205401721U (en) | 2016-03-11 | 2016-03-11 | Electronic flapper liquid packing seal structure |
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| CN (1) | CN205401721U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631029A (en) * | 2017-10-23 | 2018-01-26 | 广州凯里莱电气机械有限公司 | A kind of secondary liquid packing sealing structure applied to absorption tower side stir device |
| WO2019178998A1 (en) * | 2018-03-23 | 2019-09-26 | 深圳市创世纪机械有限公司 | Spindle airtight sealing apparatus |
| CN110439494A (en) * | 2019-09-24 | 2019-11-12 | 罗兰 | The response type drilling rod sealing structure and encapsulating method of sealing material can be filled in |
-
2016
- 2016-03-11 CN CN201620184210.5U patent/CN205401721U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631029A (en) * | 2017-10-23 | 2018-01-26 | 广州凯里莱电气机械有限公司 | A kind of secondary liquid packing sealing structure applied to absorption tower side stir device |
| WO2019178998A1 (en) * | 2018-03-23 | 2019-09-26 | 深圳市创世纪机械有限公司 | Spindle airtight sealing apparatus |
| CN110439494A (en) * | 2019-09-24 | 2019-11-12 | 罗兰 | The response type drilling rod sealing structure and encapsulating method of sealing material can be filled in |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" | ||
| CP03 | "change of name, title or address" |
Address after: 511400 No.1 South row, Youzhan Road, Longqi village, Shawan Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: Guangdong kaililai Electrical Machinery Co.,Ltd. Address before: 511483 No.1, South row, Youzhan Road, Longqi village, Shawan Town, Panyu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU KAILILAI ELECTRIC MACHINERY Co.,Ltd. |