CN215763288U - Concrete seal agitator tank sealing device - Google Patents
Concrete seal agitator tank sealing device Download PDFInfo
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- CN215763288U CN215763288U CN202122109455.5U CN202122109455U CN215763288U CN 215763288 U CN215763288 U CN 215763288U CN 202122109455 U CN202122109455 U CN 202122109455U CN 215763288 U CN215763288 U CN 215763288U
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Abstract
The utility model discloses a concrete sealing and stirring tank sealing device, which relates to the field of sealing devices and comprises a stirring shaft and a stirring tank, wherein a shaft head reinforcing part is arranged on the stirring shaft and positioned at the outer side of the stirring tank, a shaft head shell is fixed on the shaft head reinforcing part, a plurality of sampling holes are formed in the shaft head shell, sampling sealing bolt columns are inserted into the sampling holes, a first shaft head protection ring is arranged in a circular hole at the end surface of the stirring tank, a yellow glue fixing steel frame is arranged between the shaft head shell and the first shaft head protection ring, sealing yellow glue is arranged on the yellow glue fixing steel frame, a pressure sensor is arranged between the sealing yellow glue and the yellow glue fixing steel frame, whether can detect sealed yellow glue through designing pressure sensor and compress tightly, can take a sample lubricating oil of lubricated sealed yellow glue through designing the sealed bolt post of sample, confirm whether have mud to break through sealed yellow glue, and then the control is as the operating condition of the sealed yellow glue of main seal.
Description
Technical Field
The utility model belongs to the field of sealing devices, and particularly relates to a concrete sealed stirring tank sealing device.
Background
The concrete mixer is the core component of the concrete mixing tank, the performance of the mixer directly affects the performance of the whole device, and in the design of the mixer, the shaft end seal of the mixer is an important design key point, the shaft end seal is positioned on the mixing shaft of the mixer and is positioned between the mixer shell and the mixing shaft, and the longitudinal position of the mixing shaft is
Between the stirring blade and the support bearing. The function of the device is to prevent concrete slurry from extruding out of the shell from a fixed clearance (namely a clearance between an element fixed on the shell and a rotating element) when the stirrer works, namely, the so-called shaft end slurry leakage happens. Once shaft end slurry leakage occurs, solid particles such as sand and the like contained in the slurry are extruded into the fixed and movable gap from the shell, the fixed and movable elements are abraded, the slurry breaks through the sealing of the supporting bearing assembly, enters and damages the bearing, and the whole machine cannot work normally.
The closed seal that adopts at present designs a wear-resisting flexible component yellow glue between deciding the clearance, and yellow glue and shaft locking ware main part form zero clearance's seal through the pressure of the fixed steelframe of yellow glue, and this is the main seal of this structure, though closed seal effect is better than early floating oil seal, nevertheless as the yellow glue of main seal and is worn and torn the back, mud will get into this back
The clearance wears the fixed and movable elements, and experience shows that once the main seal fails, the following sealing measures can also fail quickly, so that the key is to ensure that the main seal can play the correct role, and how to conveniently monitor the state of the main seal becomes a valuable technical problem.
SUMMERY OF THE UTILITY MODEL
The technical problem of how to conveniently monitor the working state of the main sealing part of the closed sealing structure of the concrete mixer is solved.
The utility model provides a concrete sealed stirring tank sealing device.
The technical scheme adopted by the utility model for solving the defects is as follows: a concrete sealed stirring tank sealing device comprises a stirring shaft, a stirring tank and a shaft head shell, wherein the stirring shaft penetrates through a round hole formed in the end face of a stirring tank barrel body and extends out of the stirring tank, a first shaft head protection ring is arranged on the stirring shaft and in the round hole in the end face of the stirring tank barrel body, a shaft head reinforcing part is arranged on the outer side of the stirring tank barrel body and fixedly connected with the shaft head shell, a yellow glue fixing steel frame is arranged between the first shaft head shell and the first shaft head protection ring, sealed yellow glue is fixed on the yellow glue fixing steel frame, a shaft locking device is arranged on the stirring shaft and positioned on the outer side of the stirring tank barrel body, the shaft locking device is tightly pressed on the stirring shaft through a shaft locking device fixing ring tensioned on an inclined plane, and the sealed yellow glue is in tight contact with the shaft locking device through the pressure generated by the yellow glue fixing steel frame to form zero-clearance sealing, the zero clearance seal formed by the sealing yellow glue and the shaft locking device is the main seal of the utility model, a plurality of placing grooves are symmetrically arranged on the yellow glue fixing steel frame and between the sealing yellow glue and the yellow glue fixing steel frame, the placing grooves are mutually connected through annular pressure sensor wire grooves, pressure sensors are arranged in the placing grooves and are used for detecting the pressure at the pressing part of the sealing yellow glue and the shaft locking device, a yellow glue fixing steel frame wire hole is arranged on the yellow glue fixing steel frame, the yellow glue fixing steel frame wire hole is connected with a certain placing groove, a shaft head end cover is arranged on the outer side of the shaft head shell and the shaft locking device, a shell bolt connecting hole is arranged on the position of the shaft head shell corresponding to the yellow glue fixing steel frame wire hole, an end cover connecting bolt hole is arranged on the position of the shaft head end cover corresponding to the shell bolt connecting hole, a connecting bolt passes through the shell bolt connecting hole and the end cover connecting bolt hole and is fixed through a nut, a through bolt wire perforation is formed in the connecting bolt, the center of the bolt wire perforation is aligned with the center of the yellow glue fixing steel frame wire hole, and the aperture of the bolt wire perforation is the same as that of the yellow glue fixing steel frame wire hole;
the spindle head shell is provided with a plurality of sampling holes, sampling sealing bolt columns are inserted in the sampling holes, threads are arranged on the inner surface of the upper portions of the sampling holes, each sampling sealing bolt column comprises a threaded connection portion and a sampling portion, the threaded connection portion is matched with the upper portion of each sampling hole, the sampling portion is arranged below the threaded connection portion, the diameter of the sampling portion is smaller than the inner diameter of the threaded connection portion, lubricating oil for lubricating the sealing mastic and the shaft locking device can also enter a gap between the sampling portion and the sampling holes, a plurality of sampling grooves are formed in the outer circle of the sampling portion, the sampling grooves are formed in a downward inclined mode by 30 degrees, if slurry breaks through a main seal formed by the sealing mastic and the shaft locking device and enters a gap between the shaft locking device and the spindle head shell, slurry particles can be mixed in the lubricating oil filling the gap between the sampling portions and the sampling holes, after the sampling sealing bolt column is taken out, whether the sealing structure formed by the sealing yellow glue and the shaft locking device is broken through or not can be judged by observing whether slurry particles are contained in the residual lubricating oil in the sampling groove or not.
As a further optimization scheme of the utility model, a one-way sealing ring is arranged on the left side of the sealing yellow glue on the shaft locking device to prevent the lubricating yellow glue and the lubricating oil of the shaft locking device from leaking outwards, a floating sealing ring is arranged on the left side of the one-way sealing ring, and a framework sealing ring is arranged on the left side of the floating sealing ring on the main shaft of the stirring machine to prevent the lubricating oil in the inner cavity of the floating sealing ring from leaking outwards.
The utility model has the advantages that: the pressure sensor can reflect the compression degree of the sealing yellow glue and the shaft locking device by utilizing the reading of the sensor, when the reading of the pressure sensor is greatly reduced compared with the reading of the record just put into use after the equipment is installed, the sealing yellow glue can be judged to be loosened or worn, the sampling hole and the sampling sealing bolt column are arranged, the sampling sealing bolt column can be taken down after the abnormal reading of the pressure sensor is finished, whether the slurry breaks through the sealing structure formed by the sealing yellow glue and the shaft locking device or not can be judged by checking the residual lubricating oil in the sampling groove, the result judged by the reading change of the pressure sensor is further proved, the working state of the main sealing structure can be conveniently monitored by combining the reading of the pressure sensor and analyzing the lubricating oil sample stored in the sampling groove of the sampling sealing bolt column without disassembling the main sealing structure, the inspection and maintenance work of the shaft end sealing structure is facilitated.
Drawings
The present application is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of a seal bolt column of the present invention;
FIG. 3 is a cross-sectional view of the connecting bolt of the present invention;
FIG. 4 is a schematic diagram of the arrangement of pressure sensors and the ring-shaped wire groove of the present invention
In the figure, 1, a stirring shaft; 2. a spindle head end cover; 3. a spindle head housing; 4. a spindle nose reinforcement; 5. a shaft locking device; 6. a stirring tank; 7. a first spindle nose protection ring; 8. a side wall limiting protection ring; 9. a shaft head protection ring II; 10. a labyrinth seal cavity; 11. fixing the steel frame by yellow glue; 12. sealing yellow glue; 13. a pressure sensor; 14. a one-way sealing ring; 15. a floating seal ring; 16. a skeleton sealing ring; 17. a sampling hole; 18. sampling and sealing the bolt column; 18-1, a sealing gasket; 18-2, a threaded connection; 18-3, a sampling part; 18-4 sampling grooves; 19. fixing a steel frame wire hole by yellow glue; 20. a shaft locking device fixing ring; 21. a support shaft assembly; 22. a housing bolt attachment hole; 23. a connecting bolt; 24. punching a bolt wire; 25. a pressure sensor wire way; 26. the end cover is connected with the bolt hole.
Detailed Description
According to the above structural features of the present application, the embodiments of the present application will be further explained:
referring to fig. 1-4, a concrete sealing agitator tank sealing device comprises a stirring shaft 1, an agitator tank 6 and a supporting shaft assembly 21, wherein one end of the stirring shaft 1 close to the supporting shaft assembly 21 is a transmission end, the other end is a working end, one side of each assembly close to the transmission end is an outer side, one side close to the working end is an inner side, the stirring shaft 1 penetrates through a round hole formed in the end surface of the agitator tank 6 and extends out of the agitator tank, a shaft head protection ring II 9 and a shaft head protection ring I7 are sequentially arranged on the stirring shaft 1 from inside to outside, a side wall limiting protection ring 8 is fixed on the shaft head protection ring II 9 through bolts, an annular sawtooth-shaped bulge is arranged on the outer side of the side wall limiting protection ring 8, an annular sawtooth-shaped groove matched with the sawtooth-shaped bulge on the outer side of the side wall limiting protection ring is arranged on the inner side of the shaft head protection ring I7, and a certain gap is reserved between the side wall limiting protection ring 8 and the shaft head protection ring I7, a labyrinth seal cavity is formed between the side wall limiting protection ring 8 and the spindle head protection ring I7, the resistance of slurry entering the sealing device is increased through a throttling effect, and the labyrinth seal cavity is the first seal of the utility model;
a shaft head reinforcing part 4 is arranged on the outer side of a cylinder body of a stirring tank 6, the shaft head reinforcing part 4 is fixedly connected with a shaft head shell 3, a shaft locking device 5 is arranged on the stirring shaft 1 and positioned outside the stirring tank cylinder body, the shaft locking device 5 is tightly pressed on the stirring shaft 1 through a shaft locking device fixing ring 20 tensioned through an inclined plane, a yellow glue fixing steel frame 11 is arranged between the shaft head shell 3 and a shaft head protection ring I7, a sealing yellow glue 12 is fixed on the yellow glue fixing steel frame 11, the sealing yellow glue 12 is in close contact with the shaft locking device 5 through the pressure generated by the yellow glue fixing steel frame 11 to form zero-clearance sealing, and the zero-clearance sealing of the sealing yellow glue 12 and the shaft locking device 5 is the second sealing of the utility model and also is a main sealing playing a main role;
a one-way sealing ring 14 is arranged on the outer side of a sealing yellow glue 12 on the shaft locking device 5 and used for preventing the lubricating yellow glue and lubricating oil of the shaft locking device from leaking outside, a floating sealing ring 15 is arranged on the outer side of the one-way sealing ring 14, a skeleton sealing ring 16 is arranged on the stirring shaft 1 on the outer side of the floating sealing ring 15 and used for preventing the lubricating oil in the inner cavity of the floating sealing ring from leaking outside, and a sealing structure formed by the one-way sealing ring 14, the floating sealing ring 15 and the skeleton sealing ring 16 is the third seal of the utility model and also is a safety means for preventing further invasion of slurry after the main seal fails;
as the monitoring means of the utility model to the working condition of the main seal, a plurality of placing grooves are symmetrically arranged on the yellow glue fixing steel frame 11 and between the yellow glue 12 and the yellow glue fixing steel frame 11, the placing grooves are connected with each other through an annular pressure sensor wire groove, a pressure sensor 13 is arranged in the placing groove and is used for detecting the pressure of the pressing part of the sealed yellow glue 12 and the shaft locking device 5, when the working condition of the main seal is normal, the pressure sensor should display a roughly fixed numerical value, if the reading is greatly reduced, the sealed yellow glue 12 is possible to loosen and wear, a yellow glue fixing steel frame wire hole 19 is arranged on the yellow glue fixing steel frame 11, the yellow glue fixing steel frame wire hole 19 is connected with a certain placing groove, the outer sides of the spindle head shell 3 and the shaft locking device 5 are provided with the spindle head end cover 2, a shell bolt connecting hole 22 is arranged on the spindle head shell 3 corresponding to the yellow glue fixing steel frame wire hole 19, an end cover connecting bolt hole 26 is formed in the position, corresponding to the shell bolt connecting hole 22, of the spindle head end cover 2, a connecting bolt 23 penetrates through the shell bolt connecting hole 22 and the end cover connecting bolt hole 26 and is fixed through a nut, a through bolt wire perforation 24 is formed in the connecting bolt, the center of the bolt wire perforation 24 is aligned with the center of the yellow glue fixing steel frame wire hole 19, and the aperture of the bolt wire perforation 24 is the same as that of the yellow glue fixing steel frame wire hole 19;
as another monitoring means for the working state of the main seal, a plurality of sampling holes 17 are arranged on the spindle head shell 3, sampling sealing bolt columns 18 are inserted in the sampling holes 17, threads are arranged on the inner surface of the upper parts of the sampling holes 17, each sampling sealing bolt column 18 comprises a threaded connection part 18-2 matched with the upper part of the sampling hole 17 and a sampling part 18-3, the sampling part 18-3 is arranged below the threaded connection part 18-2, the diameter of the sampling part 18-3 is smaller than the inner diameter of the threaded connection part 18-2, so that lubricating oil for lubricating the sealing yellow glue 12 and the shaft locking device 5 can also enter a gap between the sampling part 18-3 and the sampling holes 17, a plurality of sampling grooves 18-4 are formed on the excircle of the sampling part 18-3, if the main seal formed by the slurry sealing yellow glue 12 and the shaft locking device 5 enters the gap between the shaft locking device 5 and the spindle head shell 3, slurry particles are mixed into lubricating oil which is filled in a gap between the sampling part 18-3 and the sampling hole 17, the sampling groove 18-4 is formed obliquely downwards by 30 degrees, the lubricating oil in the groove is ensured not to slide off when the sampling sealing bolt column 18 is taken out, and a sealing gasket 11 is arranged between the sampling sealing bolt column 18 and the spindle head shell 3 and used for preventing the lubricating oil from leaking;
the working principle of the utility model is as follows: before working, lubricating oil is injected through an oil filling hole, the lubricating oil enters a gap between the spindle head shell 3 and the shaft locking device 5 to a gap between the sealing yellow glue 12 and the shaft locking device 5 and extrudes the sealing yellow glue 12, so that the sealing yellow glue 12 enters the gap formed between the sealing yellow glue 12 and the shaft locking device 5 to lubricate the sealing yellow glue 12, the lubricating oil also enters a sealing oil cavity on the floating sealing ring 15, high-pressure lubricating oil is filled between the spindle head protection ring I7 and the side wall limiting protection ring 8 to form a labyrinth sealing cavity, and the lubricating oil filled in the labyrinth sealing cavity lubricates working parts, so that the wear resistance of fixed and movable parts is improved, and meanwhile, slurry is prevented from entering the spindle head seal to play a role in sealing;
after new equipment is put into use, reading of the pressure sensor 13 is recorded after lubricating oil is added, the reading reflects the compression degree between the sealing yellow glue 12 and the shaft locking device 5, if the reading is obviously smaller than the reading recorded in the initial working process in the later working process, the sealing yellow glue 12 is likely to be loosened or worn, slurry after the sealing yellow glue 12 is loosened or worn may already enter a gap between the shaft locking device 5 and the shaft head shell 3 and is mixed into the lubricating oil filling the gap between the sampling part 18-3 and the sampling hole 17, at the moment, the sampling sealing bolt column 18 is taken down, whether slurry particles mixed in the lubricating oil stored in a plurality of sampling grooves 18-4 arranged on the excircle of the sampling part 18-3 exist or not is observed, the damage condition of the sealing yellow glue 12 can be further determined, and by combining the reading of the pressure sensor 13 and the sampling result of the sampling sealing bolt column 18, the working state of the sealing yellow glue as a main sealing part can be conveniently monitored so as to be replaced in time.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, integral connections, mechanical connections, electrical connections, direct connections, connections through intervening media, and communications between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In view of the above, it will be apparent to those skilled in the art from this disclosure that various changes, modifications, substitutions, and alterations can be made without departing from the spirit and scope of the utility model.
Claims (3)
1. The utility model provides a concrete seal agitator tank sealing device, includes (mixing) shaft (1), agitator tank (6), back shaft subassembly (21), its characterized in that: the stirring shaft (1) penetrates through a round hole formed in the end face of the stirring tank (6), a shaft head reinforcing part (4) is arranged on the stirring shaft (1) and positioned on the outer side of the stirring tank (6), the shaft head reinforcing part (4) is fixedly connected with the stirring tank (6), a shaft head shell (3) is fixed on the shaft head reinforcing part (4), a plurality of sampling holes (17) are arranged on the shaft head shell (3), sampling sealing bolt columns (18) are inserted into the sampling holes (17), a first shaft head protection ring (7) is arranged on the stirring shaft (1) and in a circular hole in the end face of the cylinder body of the stirring tank (6), a shaft head reinforcing part (4) is arranged on the outer side of the cylinder body of the stirring tank (6), a yellow glue fixing steel frame (11) is arranged between the shaft head shell (3) and the shaft head protection ring I (7), and sealing yellow glue is fixed on the yellow glue fixing steel frame (11); a shaft locking device (5) is arranged on the stirring shaft (1) and positioned on the outer side of the stirring tank (6) cylinder, and the shaft locking device (5) is tightly pressed on the stirring shaft (1) through a shaft locking device fixing ring tensioned on an inclined surface; a plurality of placing grooves are symmetrically formed in the glue fixing steel frame (11) between the sealing glue (12) and the glue fixing steel frame (11), the placing grooves are mutually connected through pressure sensor wire grooves (25), and pressure sensors (13) are arranged in the placing grooves.
2. A concrete-sealing drum sealing arrangement as claimed in claim 1, wherein: the sampling device is characterized in that threads are arranged on the inner surface of the upper portion of the sampling hole (17), the sampling sealing bolt column (18) comprises a threaded connection portion (18-2) and a sampling portion (18-3), the threaded connection portion (18-2) and the sampling portion (18-3) are matched with the upper portion of the sampling hole (17), the sampling portion (18-3) is arranged below the threaded connection portion (18-2), the diameter of the sampling portion (18-3) is smaller than the inner diameter of the threaded connection portion (18-2), a plurality of sampling grooves (18-4) are formed in the outer circle of the sampling portion (18-3), and the sampling grooves (18-4) are formed in a mode of inclining downwards by 30 degrees.
3. A concrete-sealing drum sealing arrangement as claimed in claim 1, wherein: the yellow glue fixing steel frame (11) is provided with a yellow glue fixing steel frame wire hole (19), the yellow glue fixing steel frame wire hole (19) is connected with a certain placing groove, the outer sides of the spindle head shell (3) and the shaft locking device (5) are provided with spindle head end covers (2), a shell bolt connecting hole (22) is formed in the position, corresponding to the yellow glue fixing steel frame wire hole (19), of the spindle head shell (3), an end cover connecting bolt hole (26) is formed in the position, corresponding to the shell bolt connecting hole (22), of the shaft head end cover (2), a connecting bolt (23) penetrates through the shell bolt connecting hole (22) and the end cover connecting bolt hole (26), a through bolt wire through hole (24) is formed in the connecting bolt (23), the center of the bolt wire through hole (24) is aligned with the center of the yellow glue fixing steel frame wire hole (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122109455.5U CN215763288U (en) | 2021-09-02 | 2021-09-02 | Concrete seal agitator tank sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122109455.5U CN215763288U (en) | 2021-09-02 | 2021-09-02 | Concrete seal agitator tank sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215763288U true CN215763288U (en) | 2022-02-08 |
Family
ID=80083177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122109455.5U Active CN215763288U (en) | 2021-09-02 | 2021-09-02 | Concrete seal agitator tank sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215763288U (en) |
-
2021
- 2021-09-02 CN CN202122109455.5U patent/CN215763288U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A sealing device for concrete sealed mixing tank Granted publication date: 20220208 Pledgee: Jining Lanhai Rural Bank Co.,Ltd. Pledgor: Jining Huashen Construction Machinery Co.,Ltd. Registration number: Y2025980003575 |