CN108167444B - Shaft seal system of sand mixer - Google Patents
Shaft seal system of sand mixer Download PDFInfo
- Publication number
- CN108167444B CN108167444B CN201810142404.2A CN201810142404A CN108167444B CN 108167444 B CN108167444 B CN 108167444B CN 201810142404 A CN201810142404 A CN 201810142404A CN 108167444 B CN108167444 B CN 108167444B
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- China
- Prior art keywords
- sealing cover
- plate
- sand mixer
- sealing
- power shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
- B22C5/0409—Blending, mixing, kneading or stirring; Methods therefor
- B22C5/0472—Parts; Accessories; Controlling; Feeding; Discharging; Proportioning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Accessories For Mixers (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a shaft seal system of a sand mixer, which comprises a power shaft and a lower sealing cover, wherein a rolling bearing is arranged on the outer side of the power shaft, a sand mixer mixing plate is arranged on the outer side of the rolling bearing, the lower sealing cover is positioned above the sand mixer mixing plate, an upper sealing cover is arranged above the sand mixer mixing plate, a spiral protrusion is arranged on the inner side of the upper sealing cover, an inner sealing plate is arranged in the inner sliding groove, an outer sealing plate is arranged on the outer side of the inner sealing plate, and a fixing plate is arranged above the outer sealing plate. The shaft seal system of the sand mixer is provided with the spiral bulge, and in the using process, when the upper sealing cover drives the spiral bulge to rotate, the inclination angle of the spiral bulge is consistent with the rotation direction of the power shaft, so that the spiral bulge can generate certain extrusion force on fluid during rotation, thereby discharging the fluid out of the system and increasing the tightness of the system.
Description
Technical Field
The invention relates to the technical field of sand mixers, in particular to a shaft seal system of a sand mixer.
Background
In the process of using the existing sand mixer, due to the fact that a power shaft lacks a corresponding shaft seal system, sand inside the sand mixer flows out of the system through the rolling bearing, and the rolling bearing is affected to some extent, so that the work of the sand mixer is directly affected, and the shaft seal system of the existing sand mixer is poor in sealing performance and is excessively complex to install.
Aiming at the problems, the novel design is carried out on the basis of the original sand mixer shaft sealing system.
Disclosure of Invention
The invention aims to provide a shaft sealing system of a sand mixer, which aims to solve the problems of poor sealing performance and too complex installation of the shaft sealing system of the sand mixer in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a sand mixer shaft seal system, includes power shaft and lower sealed lid, antifriction bearing is installed in the outside of power shaft, and antifriction bearing's outside is provided with the sand mixer compounding board, lower sealed lid is located the top of sand mixer compounding board, and the top of sand mixer compounding board is provided with sealed lid, the spiral arch is installed to the inboard of sealed lid of going up, the mid-mounting of sealed lid has the supporting wall down, and the upper surface of supporting wall has seted up interior spout to the outer spout is installed in the outside of interior spout, interior sealing plate is installed to the internally mounted of interior spout, and the outer closing plate is installed in the outside of interior sealing plate to the fixed plate is installed to the top of outer closing plate.
Preferably, the center line of the power shaft and the center line of the rolling bearing are mutually overlapped, and the rolling bearing is in interference fit with the power shaft.
Preferably, the upper sealing cover is in screw connection with the power shaft, spiral bulges are distributed on the inner side surface of the upper sealing cover in a staggered mode, the spiral bulges are of an inclined structure, and the inclined angle of the spiral bulges is consistent with the rotation direction of the power shaft.
Preferably, the central line of the lower sealing cover is mutually overlapped with the central line of the upper sealing cover, the lower sealing cover and the supporting wall are of an integrated structure, and the supporting wall is in concave-convex fit with the upper sealing cover.
Preferably, the number of the inner sealing plates is 4, the inner sealing plates are fixedly connected with the upper sealing cover, the inner sealing plates and the outer sealing plates are in staggered arrangement, and the thicknesses of the inner sealing plates and the outer sealing plates are equal.
Preferably, the central lines of the inner sliding groove and the outer sliding groove are mutually overlapped, and the inner diameters of the inner sliding groove and the outer sliding groove are larger than that of the inner sealing plate.
Compared with the prior art, the invention has the beneficial effects that: this sand mixer shaft seal system is provided with spiral arch, in the in-process of using, when last sealed lid drives spiral arch and rotates, because spiral bellied inclination is unanimous with the direction of rotation of power shaft, so spiral arch can produce certain row extrusion force to the fluid when rotatory, thereby with the inside of fluid discharge system, increase the leakproofness of this system, be provided with the supporting wall, and the supporting wall is concave-convex fit with last sealed lid, further the leakproofness of system has been increased, be provided with inner seal board and outer closing plate, when last sealed lid is rotatory, can drive inner seal board and outer closing plate respectively at inner spout and outer spout rotate, thereby the rotatory wall that the leakproofness is better is formed, the effectual fluid that keeps apart, increase the leakproofness of system, improve the practicality of system, and this system only need fix last sealed lid with lower sealed lid with the screw, thereby the installation of convenient system.
Drawings
FIG. 1 is a schematic diagram of the front structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present invention;
FIG. 3 is a schematic view showing the bottom structure of the upper seal cap of the present invention;
FIG. 4 is a schematic top view of the lower seal cap of the present invention;
fig. 5 is a schematic view showing the front view of the spiral protrusion of the present invention.
In the figure: 1. the mixing device comprises a power shaft, 2, a rolling bearing, 3, a mixing plate of a sand mixer, 4, an upper sealing cover, 5, a lower sealing cover, 6, a spiral protrusion, 7, a supporting wall, 8, an inner sealing plate, 9, an outer sealing plate, 10, a fixing plate, 11, an inner chute, 12 and an outer chute.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a sand mixer shaft seal system, which comprises a power shaft 1, antifriction bearing 2, sand mixer mixing plate 3, upper seal lid 4, lower seal lid 5, spiral arch 6, supporting wall 7, inner seal plate 8, outer seal plate 9, fixed plate 10, interior spout 11 and outer spout 12, antifriction bearing 2 is installed in the outside of power shaft 1, and antifriction bearing 2's outside is provided with sand mixer mixing plate 3, the central line of power shaft 1 and antifriction bearing 2's central line coincide each other, and antifriction bearing 2 and power shaft 1 are interference fit, ensure the normal rotation of power shaft 1, guarantee the normal use of machine, lower seal lid 5 is located the top of sand mixer mixing plate 3, and the top of sand mixer mixing plate 3 is provided with upper seal lid 4, upper seal lid 4 and power shaft 1 are screw connection, and the inboard face of upper seal lid 4 is alternately distributed with spiral arch 6, spiral arch 6 is the slope structure, the inclination angle of the spiral bulge 6 is consistent with the rotation direction of the power shaft 1, when the upper sealing cover 4 rotates, the upper sealing cover 4 can drive the spiral bulge 6 to rotate, due to the inclined spiral bulge 6, the inclination angle of the spiral bulge 6 is consistent with the rotation direction of the power shaft 1, when the spiral bulge 6 rotates, the spiral bulge 6 can generate certain row extrusion force on fluid, so that the tightness of the system is improved, the center line of the lower sealing cover 5 and the center line of the upper sealing cover 4 are mutually overlapped, the lower sealing cover 5 and the supporting wall 7 are of an integrated structure, the supporting wall 7 and the upper sealing cover 4 are in concave-convex fit, the integrated design is adopted, the strength of the system is improved, the concave-convex fit is adopted, the tightness of the system is further improved, the spiral bulge 6 is arranged at the inner side of the upper sealing cover 4, the supporting wall 7 is arranged at the middle part of the lower sealing cover 5, and the upper surface of supporting wall 7 has seted up interior spout 11 to outer spout 12 is installed in the outside of interior spout 11, the central line of interior spout 11 and the central line of outer spout 12 coincide each other, and interior diameter of interior spout 11 and outer spout 12 is all greater than interior closing plate 8, ensure that interior closing plate 8 and outer closing plate 9 can normal rotation, the practicality of system is increased, interior internally mounted of interior spout 11 has interior closing plate 8, and the outside of interior closing plate 8 installs outer closing plate 9, and fixed plate 10 is installed to the top of outer closing plate 9, interior closing plate 8 is provided with 4, and interior closing plate 8 and last sealed lid 4 are fixed connection, interior closing plate 8 and outer closing plate 9 are crisscross overall arrangement, and interior closing plate 8 and outer closing plate 9 thickness are equal, adopt crisscross overall arrangement, not only make the system can form certain sealing wall when rotatory, and the poor problem of leakproofness when having avoided this system to be static.
Working principle: when the sand mixer shaft seal system is used, the upper sealing cover 4 and the lower sealing cover 5 are respectively fixed on the power shaft 1 and the sand mixer mixing plate 3 through screws, so that the sand mixer shaft seal system starts to be used, the power shaft 1 can drive the upper sealing cover 4 to rotate in the rotating process of the power shaft 1, the spiral protrusion 6 is driven to rotate, the inclination angle of the spiral protrusion 6 is consistent with the rotating direction of the power shaft 1, so that the spiral protrusion 6 in the rotating process can generate certain extrusion force for fluid, the fluid is discharged out of the system, the tightness of the system is improved, the rotation of the upper sealing cover 4 can drive the inner sealing plate 8 and the outer sealing plate 9 to rotate in the inner sliding groove 11 and the outer sliding groove 12, the inner sealing plate 8 and the outer sealing plate 9 in the rotating process can form a sealing wall with good sealing performance due to the characteristic of high-speed rotation, the fluid is effectively isolated, the practicability of the system is improved, and the content which is not described in detail in the specification belongs to the prior art known to the technical personnel in the field.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a sand mixer shaft seal system, includes power shaft (1) and lower sealed lid (5), its characterized in that: the automatic sand mixer is characterized in that a rolling bearing (2) is arranged on the outer side of the power shaft (1), a sand mixer mixing plate (3) is arranged on the outer side of the rolling bearing (2), a lower sealing cover (5) is arranged above the sand mixer mixing plate (3), an upper sealing cover (4) is arranged above the sand mixer mixing plate (3), a spiral protrusion (6) is arranged on the inner side of the upper sealing cover (4), a supporting wall (7) is arranged in the middle of the lower sealing cover (5), an inner sliding groove (11) is formed in the upper surface of the supporting wall (7), an outer sliding groove (12) is arranged on the outer side of the inner sliding groove (11), an inner sealing plate (8) is arranged in the inner side of the inner sliding groove (11), an outer sealing plate (9) is arranged on the outer side of the inner sealing plate (8), and a fixing plate (10) is arranged above the outer sealing plate (9);
the upper sealing cover (4) is connected with the power shaft (1) through screws, spiral bulges (6) are alternately distributed on the inner side surface of the upper sealing cover (4), the spiral bulges (6) are of an inclined structure, and the inclination angle of the spiral bulges (6) is consistent with the rotation direction of the power shaft (1);
the number of the inner sealing plates (8) is 4, the inner sealing plates (8) are fixedly connected with the upper sealing cover (4), the inner sealing plates (8) and the outer sealing plates (9) are in staggered arrangement, and the thicknesses of the inner sealing plates (8) and the outer sealing plates (9) are equal;
the central lines of the inner sliding groove (11) and the outer sliding groove (12) are mutually overlapped, and the inner diameters of the inner sliding groove (11) and the outer sliding groove (12) are larger than that of the inner sealing plate (8).
2. A sand mill sealing system as claimed in claim 1, wherein: the center line of the power shaft (1) and the center line of the rolling bearing (2) are mutually overlapped, and the rolling bearing (2) is in interference fit with the power shaft (1).
3. A sand mill sealing system as claimed in claim 1, wherein: the central line of the lower sealing cover (5) is mutually overlapped with the central line of the upper sealing cover (4), the lower sealing cover (5) and the supporting wall (7) are of an integrated structure, and the supporting wall (7) and the upper sealing cover (4) are in concave-convex fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810142404.2A CN108167444B (en) | 2018-02-11 | 2018-02-11 | Shaft seal system of sand mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810142404.2A CN108167444B (en) | 2018-02-11 | 2018-02-11 | Shaft seal system of sand mixer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108167444A CN108167444A (en) | 2018-06-15 |
| CN108167444B true CN108167444B (en) | 2023-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810142404.2A Active CN108167444B (en) | 2018-02-11 | 2018-02-11 | Shaft seal system of sand mixer |
Country Status (1)
| Country | Link |
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| CN (1) | CN108167444B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201301959Y (en) * | 2008-11-28 | 2009-09-02 | 天津钢铁有限公司 | Dustproof sealing device |
| CN102734443A (en) * | 2011-04-11 | 2012-10-17 | 天津市七星精密机械有限公司 | Double spiral axial moving seal driving device |
| US9581247B2 (en) * | 2011-06-30 | 2017-02-28 | Eagle Burgmann Japan Co., Ltd. | Shaft seal apparatus |
| CN204996549U (en) * | 2015-09-14 | 2016-01-27 | 江西宝烀高岭土有限公司 | Spiral classifier |
| CN106958660B (en) * | 2017-05-15 | 2019-06-21 | 浙江艾精机科技股份有限公司 | A kind of grease lubrication electro spindle |
| CN207880081U (en) * | 2018-02-11 | 2018-09-18 | 江西亿丰精密铸造有限公司 | A kind of sand mixer gland seal device |
-
2018
- 2018-02-11 CN CN201810142404.2A patent/CN108167444B/en active Active
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| Publication number | Publication date |
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| CN108167444A (en) | 2018-06-15 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 336000 Yichun economic and Technological Development Zone, Jiangxi Applicant after: Jiangxi Jianggong Precision Machinery Co.,Ltd. Address before: 336000 Yichun economic and Technological Development Zone, Jiangxi Applicant before: JIANGXI YIFENG PRECISION CASTING Co.,Ltd. |
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