CN205244385U - Gas solid two phase seal structure - Google Patents
Gas solid two phase seal structure Download PDFInfo
- Publication number
- CN205244385U CN205244385U CN201521031570.3U CN201521031570U CN205244385U CN 205244385 U CN205244385 U CN 205244385U CN 201521031570 U CN201521031570 U CN 201521031570U CN 205244385 U CN205244385 U CN 205244385U
- Authority
- CN
- China
- Prior art keywords
- ring
- gas
- solid
- stationary ring
- seal structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Accessories For Mixers (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a gas solid two phase seal structure, including main shaft, activity ring, stationary ring and fore bearing, its characterized in that activity ring fix the main shaft on, the stationary ring fix on dry -mixed mortar mixes the lateral wall of the barrel of machine, seted up on it the obliquely aeration tank and with the entad annular breach of aeration tank UNICOM, the mode of terminal surface through cyclic annular toothed grooves meshing with of movable ring sum stationary ring form the cooperation, the stationary ring outside with the outer lane of fore bearing is connected. The utility model discloses a mazy microgap passageway has lengthened the route that mixed built -in material leaked to the external world, has increased the gas -flow resistance, and the material is the very difficult external world that arrives after stopping many times, the activity ring produces centrifugal phenomenon at the in -process of making rotary motion, makes to be shed to open near the solid phase material of activity ring to go, has further improved and has prevented leaking the effect.
Description
Technical field
The utility model relates to a kind of hermetically-sealed construction, relates in particular in the mixing and mixer of gas phase and solid-phase materialHermetically-sealed construction, specifically a kind of gas-solid two-phase seal structure.
Background technology
In the plant equipment of the industries such as chemical industry, food, feed, building materials, machinery, on its rotation class axle, mostly adoptWith end face seal and hermetic seal or rubber skeleton sealing, this hermetically-sealed construction is applied in dry mixed mortar mixerOn main shaft, effect is all very undesirable. Figure 10 is the structural representation of domestic and international conventional dry mixed mortar mixer seriesFigure, comprises motor 16, reductor 15, fore bearing 7, hermetically-sealed construction 14, rear bearing 22, main shaft 6 and cylinderBody, described inner barrel 12 is provided with rabbling mechanism, and described cylindrical shell is provided with ventilation mouth 13. Its hermetically-sealed constructionGenerally adopt the mode of Fig. 1. With reference to Fig. 1, sealing structure 14 mainly comprises stationary ring 3, airtight and watertight padding 4With gland 5; Described main shaft 6 is through described stationary ring 3, and two ends are arranged on described front and back bearings 7 HesOn 22; Described stationary ring 3 is fixed on the lateral wall of cylindrical shell 1 of dry mixed mortar mixer, on it, offersThere are oblique aeration tank 2 and the centripetal annular groove 21 with described aeration tank 2 UNICOMs; The rear end of described stationary ring 3Be partially submerged in the installing hole 8 on cylindrical shell 1, front end also offers centripetal annular breach 24; Described is closePacking material 4 is filled in described annular breach 24, and described gland 5 inserts in described annular breach 24,And by bolt on being fixed on the lateral wall of described cylindrical shell 1 together with described stationary ring 3.
This hermetically-sealed construction mainly reaches sealing effectiveness by airtight and watertight padding 4 and the gapless tight fit of main shaft 6. By to aeration tank inflation, make the material blowback leaking in mixer in the cylindrical shell of mixer, can untilAuxiliary seal effect. Because described aeration tank is between airtight and watertight padding and mixer cylindrical shell, this auxiliary closeThe effect prerequisite of envelope is that airtight and watertight padding and main shaft are gapless, and in this case, guarantee air-flow is unidirectionalBlow to mixer inside. But in fact airtight and watertight padding 4 produces wearing and tearing with the relative motion meeting of main shaft 6, entersAnd form small gap at both interfaces, and this gap can be along with the continuous wearing and tearing of airtight and watertight paddingIncrease gradually, the pressure reduction that in mixer, the emptying and launch process of material produces in addition changes, if now continuedInflation incessantly, air-flow will carry material and pass through this gap to external leakage, consequently causes airtight and watertight paddingWear and tear sooner. In this process, need to ceaselessly clamp or change airtight and watertight padding and leak to control. ButWhen main shaft is also worn while particularly wearing into irregular shape, clamp or change the airtight and watertight padding nothing that will seemEffect. So more aggravated the wearing and tearing of filler and main shaft, leakage is even sprayed will be more serious, to such an extent as to causeMachine one leaves, and can just produce serious pollution. Now, need to often overhaul main shaft, but be very not like thisEconomical. In the time having big dust particle to fall into the gap between airtight and watertight padding and main shaft, even can produce main shaft quiltThe phenomenon of blocking, if power-on now just may cause motor rotation blockage and situation about being burned.
Summary of the invention
To be solved in the utility model is gas phase and the leakage of solid phase in rotation kind equipment that prior art existsProblem, aims to provide a kind of follow-on gas-solid two-phase seal structure, avoids to greatest extent mixing class mechanical axisTo leaking material and emitting ash, extension device safe operating life, to improve the environmental protection and energy saving performance of equipment.
For addressing the above problem, the utility model by the following technical solutions:
A kind of gas-solid two-phase seal structure, comprises main shaft, loose collar, stationary ring and fore bearing, it is characterized in thatDescribed loose collar is fixed on described main shaft; Described stationary ring is fixed on the cylindrical shell of dry mixed mortar mixerLateral wall on, on it, offer oblique aeration tank and the centripetal annular breach with described aeration tank UNICOM; InstituteThe mode that the loose collar of stating and the end face of stationary ring engage by ring-type teeth groove forms cooperation; Described stationary ring outsideBe connected with the outer ring of described fore bearing.
Gas-solid two-phase seal structure of the present utility model, has following characteristics:
1, its sealing property is to coordinate to realize by the end face of loose collar and stationary ring. Due to loose collar andThe mode that the end face of stationary ring engages by ring-type teeth groove coordinates, and forms mazy microgap passage, not onlyGreatly extend the path that in mixer, material leaks to the external world, and formed by force at the turnover face place of each teeth grooveLarge resistance, material is difficult to arrive extraneous after repeatedly stopping.
2, loose collar produces centrifugal phenomenon in the process rotating, and makes the solid-phase material near loose collarShed and opened, further improved anti-leak result.
3, be arranged on the outside of sealing surface due to aeration tank, the gas being filled with from aeration tank is unidirectional interceptingThe material leaking from mixer direction. As long as the air pressure of machine intimate is less than or equal to the air pressure coming from aeration tank,The leakage that just can not produce gas-solid two-phase. And, due to the labyrinth type gas circuit between loose collar and stationary ring, makeThe gas velocity that must be charged into is relatively slowly with stable, and gas consumption is also wanted so that many than traditional method.
The utility model also will provide the gas-solid two-phase seal structure of another kind of form, comprise main shaft, loose collar,Stationary ring and gland, is characterized in that described loose collar is fixed on described main shaft; Described stationary ring is solidFix on the lateral wall of cylindrical shell of dry mixed mortar mixer, on it, offer oblique aeration tank and with described inflationThe centripetal annular breach of groove UNICOM; The mode that described loose collar and the end face of stationary ring engage by ring-type teeth grooveForm and coordinate; Described gland 5 is arranged on the outside of described stationary ring, and centripetal annular breach described in shutoff.
Different from last technical scheme, the fore bearing of the technical program is external, by gland, aeration tank is enteredRow seals, and can reach equally the sealing effectiveness of last technical scheme.
As improvement of the present utility model, according to design needs, described loose collar and the end face of stationary ring are alternatelyBe provided with two to multiple ring-type teeth groove. For further extending gas circuit stroke, and further increase air resistance, described inThe preferred square structure of teeth groove.
Further improve as of the present utility model, on described centripetal annular breach, be also provided with skeleton oilEnvelope. Described outside framework oil seal is 1～2.
Further improve as of the present utility model, the positioning groove of described outside framework oil seal is loudspeaker shape knotStructure. When installation, the direction that the structure of trumpet type is come towards source of the gas, air-flow has compressed the upper of trumpet type openningLower both sides, thus the lubricating oil that has ensured bearing does not leak bearing is not dry grinded, the air-flow that makes hermetic seal towardsMachine inner barrel direction flows.
As of the present utility model further improve, described oblique aeration tank from notch to bottom land to mixingMachine direction tilts.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of prior art.
Fig. 2 is the structural representation of the first embodiment of the utility model gas-solid two-phase seal structure.
Fig. 3 is the structural representation of the second embodiment of the utility model gas-solid two-phase seal structure.
Fig. 4 is the structural representation of the loose collar of the utility model gas-solid two-phase seal structure.
Fig. 5 is the right view of Fig. 4.
Fig. 6 is the structural representation of the stationary ring of the first embodiment of the utility model gas-solid two-phase seal structureFigure.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the structural representation of the stationary ring of the second embodiment of the utility model gas-solid two-phase seal structureFigure.
Fig. 9 is the left view of Fig. 8.
Figure 10 is that the first embodiment of existing two-phase seal structure is applied to making on dry mixed mortar mixerUse state diagram.
Figure 11 is that the first embodiment of the utility model gas-solid two-phase seal structure is applied to dry-mixed mortar mixingUse state diagram on machine.
Figure 12 is that the second embodiment of the utility model gas-solid two-phase seal structure is applied to dry-mixed mortar mixingUse state diagram on machine.
Detailed description of the invention
Fig. 1 is the schematic diagram of existing hermetically-sealed construction, describes before its defect, does not repeat them here.
With reference to Fig. 2, the first embodiment of a kind of gas-solid two-phase seal structure of the present utility model, comprises masterAxle 6, loose collar 9, stationary ring 3 and fore bearing 7, described loose collar 9 is fixed on described main shaft 6;Described stationary ring 3 is fixed on the lateral wall of cylindrical shell 1 of dry mixed mortar mixer, offers oblique on itAeration tank 2 and with the centripetal annular breach 26 of described aeration tank 2 UNICOMs; Described loose collar 9 and stationary ring 3The mode that engages by ring-type teeth groove of end face 20,25 form cooperation; Described stationary ring 3 outsides and described beforeThe outer ring 10 of bearing 7 connects. Described oblique aeration tank 2 tilts to bottom land to mixer direction from notch.
With reference to Fig. 4 and Fig. 5, the front end face 20 of described loose collar 9 is alternately provided with a pair of ring-type teeth groove. GinsengAccording to Fig. 6 and Fig. 7, the end face of described stationary ring 3 is alternately provided with a pair of ring-type teeth groove. Described teeth groove is squareStructure. Teeth groove on loose collar 9 is meshed with the teeth groove on stationary ring 3, forms mazy air-flow microgap logicalRoad. According to design needs, multiple ring-type teeth groove also can be set.
With reference to Fig. 6, described centripetal annular breach 26 is secondary step structure, outside on level ladder breachAlso be provided with an outside framework oil seal 11. Interior level ladder breach forms filling channel. Determining of described outside framework oil seal 11Position groove flare structure.
With reference to Figure 11, gas-solid two-phase seal structure 18 of the present utility model is installed on dry mixed mortar mixer,In figure, mark 17 is mixer suction port.
With reference to Fig. 3, the second embodiment of a kind of gas-solid two-phase seal structure of the present utility model, comprises masterAxle 6, loose collar 9, stationary ring 3 and gland 5, the loose collar 9 described in it is characterized in that is fixed on describedOn main shaft 6; Described stationary ring 3 is fixed on the lateral wall of cylindrical shell 1 of dry mixed mortar mixer, on it, opensBe provided with oblique aeration tank 2 and the centripetal annular breach 26 with described aeration tank 2 UNICOMs; Described loose collar 9The mode engaging by ring-type teeth groove with the end face 20,25 of stationary ring 3 forms cooperation; Described gland 5 is establishedPut in the outside of described stationary ring 3, and centripetal annular breach 26 described in shutoff.
The primary structure of present embodiment and principle and the first embodiment are basic identical. Difference is front axleHold 7 externally, by gland 5, aeration tank 2 is sealed, outside framework oil seal 11 is 2, in the middle of it, is provided withTank filler sleeve 27, is arranged side by side the outside at the centripetal annular breach 26 of stationary ring 3. The same energy of this embodimentEnough reach identical sealing effectiveness.
Should be understood that: above-described embodiment is to explanation of the present utility model, instead of new to this practicalityThe restriction of type, any utility model not exceeding within the scope of the utility model connotation is created, and all falls into of the present utility modelWithin protection domain.
Claims (8)
1. a gas-solid two-phase seal structure, comprises main shaft (6), loose collar (9), stationary ring (3) and front axleHold (7), it is characterized in that described loose collar (9) is fixed on described main shaft (6); DescribedStationary ring (3) is fixed on the lateral wall of cylindrical shell (1) of dry mixed mortar mixer, offers tiltedly on itTo aeration tank (2) and with the centripetal annular breach (26) of described aeration tank (2) UNICOM; Described workThe mode that the end face (20,25) of rotating ring (9) and stationary ring (3) engages by ring-type teeth groove forms joinsClose; Described stationary ring (3) outside is connected with the outer ring (10) of described fore bearing (7).
2. a gas-solid two-phase seal structure, comprises main shaft (6), loose collar (9), stationary ring (3) and gland(5), it is characterized in that described loose collar (9) is fixed on described main shaft (6); Described is quietStop ring (3) is fixed on the lateral wall of cylindrical shell (1) of dry mixed mortar mixer, offers oblique on itAeration tank (2) and with the centripetal annular breach (26) of described aeration tank (2) UNICOM; Described activityThe mode that the end face (20,25) of ring (9) and stationary ring (3) engages by ring-type teeth groove forms cooperation;Described gland (5) is arranged on the outside of described stationary ring (3), and centripetal annular described in shutoff lacksMouth (26).
3. a kind of gas-solid two-phase seal structure as claimed in claim 1 or 2, is characterized in that described loose collar(9) and the end face of stationary ring (3) (20,25) be alternately provided with two to multiple ring-type teeth groove.
4. a kind of gas-solid two-phase seal structure as claimed in claim 3, is characterized in that described teeth groove is square.
5. a kind of gas-solid two-phase seal structure as claimed in claim 1 or 2, is characterized in that described to thimbleOn v notch v (26), be also provided with outside framework oil seal (11).
6. a kind of gas-solid two-phase seal structure as claimed in claim 5, is characterized in that described outside framework oil seal(11) be 1～2.
7. a kind of gas-solid two-phase seal structure as claimed in claim 5, is characterized in that described outside framework oil seal(11) positioning groove flare structure.
8. a kind of gas-solid two-phase seal structure as claimed in claim 1 or 2, is characterized in that described oblique fillingAir drain (2) tilts to bottom land to mixer direction from notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521031570.3U CN205244385U (en) | 2015-12-11 | 2015-12-11 | Gas solid two phase seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521031570.3U CN205244385U (en) | 2015-12-11 | 2015-12-11 | Gas solid two phase seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205244385U true CN205244385U (en) | 2016-05-18 |
Family
ID=55943464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521031570.3U Active CN205244385U (en) | 2015-12-11 | 2015-12-11 | Gas solid two phase seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205244385U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465363A (en) * | 2015-12-11 | 2016-04-06 | 杭州华力输送机械设备厂 | Gas-solid two-phase sealing structure |
| CN113996216A (en) * | 2021-12-31 | 2022-02-01 | 浙江汉信科技有限公司 | Dispersion machine with airtight structure |
| CN114001159A (en) * | 2020-07-28 | 2022-02-01 | 上海汽车集团股份有限公司 | Sealing device of air compressor |
-
2015
- 2015-12-11 CN CN201521031570.3U patent/CN205244385U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465363A (en) * | 2015-12-11 | 2016-04-06 | 杭州华力输送机械设备厂 | Gas-solid two-phase sealing structure |
| CN114001159A (en) * | 2020-07-28 | 2022-02-01 | 上海汽车集团股份有限公司 | Sealing device of air compressor |
| CN113996216A (en) * | 2021-12-31 | 2022-02-01 | 浙江汉信科技有限公司 | Dispersion machine with airtight structure |
| CN113996216B (en) * | 2021-12-31 | 2022-08-12 | 浙江汉信科技有限公司 | Dispersion machine with airtight structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205244385U (en) | Gas solid two phase seal structure | |
| CN201873283U (en) | Shaft end sealing device of spiral conveyer | |
| CN204421590U (en) | A kind of rotary kiln Novel kiln head labyrinth gland | |
| CN104813082A (en) | Sealing device and rotating machine | |
| CN104989830A (en) | Multistage magnetic liquid sealing device for sealing liquid | |
| CN202851980U (en) | Main shaft sealing device of high-speed mixing machine | |
| CN108590778A (en) | A kind of axial-flow type organic working medium turbo-expander | |
| CN110274022A (en) | A kind of front main bearing combination sealing arrangement of horizontal type scraper centrifuger | |
| CN105465363A (en) | Gas-solid two-phase sealing structure | |
| CN203939999U (en) | The multistage dry gas sealing device of charge gas compressor | |
| CN105013265A (en) | Anti-drop and sealing device for filter bag of electropulsing bag type dust collector | |
| CN105465373A (en) | High-performance magnetic liquid sealing structure | |
| CN210024459U (en) | Machine tool spindle sealing and pollution discharge structure | |
| CN103803305A (en) | Double-sealed rotary valve | |
| CN206206601U (en) | A kind of high speed powder mixer axle gas sealing mechanism | |
| CN207290479U (en) | The axle end sealing device of mixer main shaft | |
| CN203703358U (en) | Electric duplex double-layer ash discharging valve | |
| CN207293369U (en) | Sealing device for screw conveyor and the screw conveyor containing it | |
| CN202646035U (en) | Submersible sewage pump equipped with muddy sand prevention device | |
| CN108131387A (en) | A kind of compound seal shield machine slip casting bearing packet | |
| CN210192596U (en) | Rotary valve is carried in active carbon SOx/NOx control | |
| CN208979706U (en) | A kind of screw conveyor sealing chamber structure | |
| CN209309326U (en) | A kind of insert seal device of screw conveyor | |
| CN104132365B (en) | Composite sealed impeller type pulverized coal feeder | |
| CN202119243U (en) | Seal device of rotary kiln |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |