CN212155814U - Shaft end sealing device for vibration stirrer - Google Patents
Shaft end sealing device for vibration stirrer Download PDFInfo
- Publication number
- CN212155814U CN212155814U CN202020401557.7U CN202020401557U CN212155814U CN 212155814 U CN212155814 U CN 212155814U CN 202020401557 U CN202020401557 U CN 202020401557U CN 212155814 U CN212155814 U CN 212155814U
- Authority
- CN
- China
- Prior art keywords
- shaft seal
- outer sleeve
- shaft
- inner sleeve
- sleeve
- 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
Images
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses a shaft end sealing device for a vibration stirrer, which comprises a stirring shaft and a stirring cylinder, wherein a shaft seal inner sleeve is fixedly arranged outside the stirring shaft, a shaft seal outer sleeve is rotatably connected outside the shaft seal inner sleeve, an elastic element is arranged outside the shaft seal outer sleeve, the elastic element is positioned between the stirring cylinder and the shaft seal outer sleeve and is fixedly connected with the stirring cylinder, and an oil duct is arranged on the shaft seal outer sleeve; when the number of the oil passages is one, the oil passages are respectively communicated to the radial sealing positions of the shaft seal inner sleeve and the shaft seal outer sleeve and the axial sealing positions of the shaft seal inner sleeve and the shaft seal outer sleeve; or when the number of the oil passages is not less than two, at least one oil passage is communicated with the radial sealing position of the shaft seal inner sleeve and the shaft seal outer sleeve, and at least one oil passage is communicated with the axial sealing position of the shaft seal inner sleeve and the shaft seal outer sleeve; generally, the utility model has the advantages of sealed compensation can be good, effectively reduces axle head seal structure wearing and tearing volume, prevents that sealing device from becoming invalid, increase of service life.
Description
Technical Field
The utility model relates to a vibration mixer, concretely relates to shaft end sealing device for vibration mixer.
Background
The shaft end sealing is a key component influencing the working reliability of the stirring machine, the vibration stirring machine is a new technical device in the stirring equipment industry, and high-frequency vibration is added to a stirring shaft of the vibration stirring machine besides low-speed rotation stirring. Therefore, in addition to the same problems of wear, blockage and the like as those of a common stirrer, the bearing seal is stressed more complexly by the additional high-frequency vibration, and the damage of the bearing seal is aggravated. Patent application number CN201820761527.X discloses a vibration mixer shaft end sealing device for expanding agent production batching, including the (mixing) shaft, stirring organism curb plate and sealing device, the (mixing) shaft is horizontal to be set up, its shaft end passes through the shell in the sealing device outside and inboard ring flange fixed mounting on the organism curb plate, sealing device is inside by sealed rubber ring, dynamic backing ring, static backing ring, elastic packing and spring are constituteed, dynamic backing ring links firmly with the (mixing) shaft, be equipped with sealed rubber ring between, static backing ring adorns in the dynamic backing ring outside, elastic packing is equipped with to its opposite side, be equipped with the spring between elastic packing and the shell, it has following problem: 1. the spring locally extrudes the elastic filler, so that uneven stress is easily caused, and the sealing and compensating effects are influenced; 2. the elastic filler is directly contacted with the moving ring, rotates and rubs while vibrating, has no lubricating measure, is in a dry grinding state and is easy to generate overheating damage; 3. the oil ducts on the sealing surfaces of the dynamic and static backing rings are directly arranged on the elastic filler, and when the elastic filler deforms or deforms due to overheating, phenomena such as overlarge oil filling resistance, even blockage of the oil ducts and the like are easily caused, so that oil shortage faults at the dynamic and static rings are caused; 4. the cavity that forms between inboard ring flange and the bearing seal directly exposes outside, and no material is filled, and the material that is stirred easily gets into this cavity, and the bearing seal damages with higher speed, for example, when the material that is stirred is the concrete, grout just can directly get into this cavity and condense the set cement that forms and have intensity, causes oil duct jam, wearing and tearing aggravation. Therefore, in order to solve the above problems, a shaft end sealing device for a vibration agitator is required to be more reliable and practical.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a sealed, compensation performance is good, and is lubricated good, and the high reliability vibration agitator that is difficult for generating heat, stopping up uses axle head sealing device, effectively prolongs complete machine life.
In order to achieve the above object, the utility model provides a shaft end sealing device for vibration mixer, including (mixing) shaft and a mixing bowl, the shaft seal inner sleeve has set firmly outside the (mixing) shaft, the shaft seal inner sleeve outside rotates and is connected with the shaft seal overcoat, the shaft seal overcoat outside is equipped with elastic element, elastic element is located between the mixing bowl and the shaft seal overcoat and with the mixing bowl links firmly, be equipped with the oil duct on the shaft seal overcoat; when the number of the oil passages is one, the oil passages are respectively communicated to the radial sealing position of the shaft seal inner sleeve and the shaft seal outer sleeve and the axial sealing position of the shaft seal inner sleeve and the shaft seal outer sleeve;
or when the number of the oil passages is not less than two, at least one oil passage is communicated with the radial sealing position of the shaft seal inner sleeve and the shaft seal outer sleeve, and at least one oil passage is communicated with the axial sealing position of the shaft seal inner sleeve and the shaft seal outer sleeve.
When the number of the oil passages is one, the oil passages are respectively communicated with the radial sealing position of the shaft seal inner sleeve and the shaft seal outer sleeve and the axial sealing position of the shaft seal inner sleeve and the shaft seal outer sleeve and communicated with one end face of the shaft seal outer sleeve;
or when the number of the oil passages is not less than two, at least one oil passage is communicated with the radial sealing position of the shaft seal inner sleeve and the shaft seal outer sleeve, and at least one oil passage is communicated with the axial sealing position of the shaft seal inner sleeve and the shaft seal outer sleeve and is communicated with one end face of the shaft seal outer sleeve.
And friction rings are arranged at the radial sealing positions of the shaft seal inner sleeve and the shaft seal outer sleeve.
The friction ring is a floating oil seal.
And a pressing plate is arranged on the outer side of the elastic element, the pressing plate tightly presses the elastic element and then is fixedly connected with the stirring cylinder, and a gap is formed between the pressing plate and the shaft seal outer sleeve in the radial direction.
The shaft seal inner sleeve is made of steel materials, and the shaft seal outer sleeve is made of cast iron materials.
The shaft seal inner sleeve and the shaft seal outer sleeve are both made of cast iron materials.
The elastic element is made of rubber materials.
And a sealing ring is arranged between the shaft seal inner sleeve and the shaft seal outer sleeve.
The beneficial effects of the utility model reside in that:
1. the arranged elastic element, the stirring cylinder and the shaft seal outer sleeve do not move relatively, static sealing is adopted, overheating is not easy to occur, the service life is long, and the sealing effect is good; the sealing positions of the end faces of the inner sleeve and the outer sleeve of the shaft seal can be always attached, the axial abrasion of the sealing positions of the end faces is compensated, and the bad vibration transmitted to the stirring cylinder can be effectively absorbed;
2. the elastic element is connected with the stirring cylinder through the bolt, so that the installation adjustment and the control of the compression amount are easy, the stress of the elastic element is more uniform, and the sealing and compensating performance is better;
3. the lubricating oil channels are arranged on the radial sealing surfaces of the inner and outer sleeves of the shaft seal, so that the lubricating surfaces are always kept in a good lubricating state, and faults caused by less oil and lack of oil are prevented; meanwhile, a lubricating oil channel is also arranged at the axial sealing position of the shaft seal inner sleeve and the shaft seal outer sleeve, and the sealed material is diluted, isolated and discharged, so that the sealing life is effectively prolonged. Generally, the utility model has the advantages of sealed, compensation performance is good, and is lubricated good, be difficult for generating heat, block up, the reliability is high.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 3 is a schematic structural diagram of embodiment 3 of the present invention.
Fig. 4 is a schematic structural view of the belt press plate of the present invention.
Fig. 5 is a schematic structural diagram of embodiment 4 of the present invention.
In the figure: 1. the stirring shaft 2, the stirring cylinder 3, the shaft seal inner sleeve 4, the shaft seal outer sleeve 5, the elastic element 6, the friction ring 7 and the pressing plate 8 are sealed rings.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example 1:
as shown in fig. 1 and 4, a shaft end sealing device for a vibration mixer includes a stirring shaft 1 and a stirring cylinder 2, a shaft seal inner sleeve 3 is fixedly disposed on an outer side of the stirring shaft 1, a shaft seal outer sleeve 4 is rotatably connected to an outer side of the shaft seal inner sleeve 3, the shaft seal inner sleeve 3 and a radial stepped end surface of the shaft seal outer sleeve 4 are in direct contact to form mechanical end surface sealing, an elastic element 5 is disposed on an outer side of the shaft seal outer sleeve 4, the elastic element 5 and the shaft seal outer sleeve 4 may be of an integrated structure, may be sleeved on an outer side (radial direction) of the shaft seal outer sleeve 4, and may be fixedly disposed on an end; the shaft seal outer sleeve 4 is tightly attached to the elastic element 5, a holding function is achieved, no relative motion exists between the attaching surfaces during working, the arranged elastic element 5 mainly plays roles of radial buffering, vibration absorption and axial sealing compensation, poor vibration transmitted to the stirring cylinder 2 is reduced, and the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4 can still be attached after the end face sealing part is abraded; the elastic element 5 is positioned between the stirring cylinder 2 and the shaft seal outer sleeve 4 and fixedly connected with the stirring cylinder 2, and an oil duct is arranged on the shaft seal outer sleeve 4; here the oil passage contains a gap formed between the elements through which lubricating oil can pass.
When the number of the oil passages is two, one oil passage is communicated with the radial sealing position of the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4, and the other oil passage is communicated with the axial sealing position of the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4 and communicated with the end face of one end of the shaft seal outer sleeve 4, lubricating oil filled through the oil passages forms a lubricating oil film at the radial sealing position of the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4, and provides lubrication for the rotating working surfaces of the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4, and meanwhile, the sealed materials mixed into the working surfaces are diluted, isolated and discharged, so that the sealing service life is effectively prolonged, and.
In order to ensure that the elastic element 5 is not locally stressed, a pressing plate 7 is arranged on the outer side of the elastic element 5, the pressing plate 7 and the elastic element 5 can be of an integrated structure or a split structure, the elastic element 5 is uniformly pressed by the pressing plate 7 and then fixedly connected with the stirring cylinder 2, and the pressing plate 7 cannot interfere with the shaft seal outer sleeve 4 because the elastic element 5 needs to compensate the radial jumping amount of the stirring shaft during working, so that a gap exists between the pressing plate 7 and the shaft seal outer sleeve 4 in the radial direction, and the excessive constraint on the elastic element 5 is relieved.
The shaft seal inner sleeve 3 is made of steel materials, such as 45-grade steel; the shaft seal outer sleeve 4 is made of cast iron material, such as nodular cast iron; materials with different hardness are adopted, so that concave-convex matched friction surfaces can be quickly formed, and the wear resistance is improved; the shaft seal outer sleeve 4 has a relatively complex structure, is suitable for casting and has high material utilization rate; or the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4 are both made of cast iron materials, for example, nodular cast iron, and the two are cast by the cast iron materials, so that the vibration absorption and the wear reduction effects are good; the shaft seal inner sleeve 3 can also be made of cast iron material, and the shaft seal outer sleeve 4 can be made of steel material.
The elastic element 5 is fixedly connected with the stirring cylinder 2 through a bolt, the elastic element 5 is made of rubber materials or elastic materials such as polyurethane, an oil injection joint is arranged on the oil duct and used for injecting lubricating oil, for example, manual lubrication is realized by adopting a pressure oil injection cup, and automatic lubrication can be realized by connecting with an automatic lubricating oil pump.
Example 2:
as shown in fig. 2, the difference from embodiment 1 is that there is one oil passage, which is respectively communicated to the radial sealing position of the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4 and the axial sealing position of the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4, and is communicated with one end face of the shaft seal outer sleeve 4.
Example 3:
as shown in fig. 3, the difference from embodiment 1 lies in that a friction ring 6 is disposed at the radial seal position of the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4, the friction ring 6 is added to mainly increase the wear resistance of the end face seal position, the friction ring has the characteristics of high hardness and high smoothness, and is usually disposed in pairs and respectively fixedly connected with the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4, at this time, the radial seal position of the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4 is indirectly connected, and the friction ring 6 replaces the original radial seal mode of direct contact between the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4, thereby greatly prolonging the service life; this friction ring also can adopt floating oil seal etc. it has the ability of compensating to the terminal surface after the friction ring wearing and tearing in certain extent, and floating oil seal self will regard as direct end face seal wearing and tearing compensating element this moment, and the compensation effect is better, and in this embodiment, friction ring 6 adopts floating seal ring.
Example 4:
as shown in fig. 5, a sealing ring 8 is disposed between the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4, and the sealing ring 8 provides a set of reliable rotary seals between the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4, and maintains a certain pressure to prevent the lubricant from leaking outwards therefrom.
The utility model discloses a use method does: the shaft seal inner sleeve 3 of the utility model is fixedly connected with the stirring shaft 1, the shaft seal outer sleeve 4 is arranged outside the shaft seal inner sleeve 3 and is connected with the elastic element 5, the radial contact position of the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4 forms a sealing end surface, namely a sealing friction pair, the contact pressure of the sealing end surface can be adjusted by the elastic element 5, the contact pressure at the position can be effectively reduced, and the abrasion is reduced; if the number of the oil passages is one, the oil passages are respectively communicated to the radial sealing position of the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4 and the axial sealing position of the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4 and are communicated to the end face of one end of the shaft seal outer sleeve 4; if the number of the oil ducts is not less than two, at least one oil duct is communicated with the radial sealing position of the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4, at least one oil duct is communicated with the axial sealing position of the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4 and communicated to the end face of one end of the shaft seal outer sleeve 4, lubricating oil filled through the oil ducts forms a lubricating oil film at the radial sealing position of the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4, the lubricating oil film provides lubrication for the rotating working surfaces of the shaft seal inner sleeve 3 and the shaft seal outer sleeve 4, and meanwhile, a sealed material mixed into the working surface is diluted, isolated and discharged outside, so that the oil immersed state is always kept in a sealing gap without other foreign matters, the oil duct blockage risk is reduced while good lubrication is kept.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a shaft end sealing device for vibration agitator which characterized in that: the stirring device comprises a stirring shaft and a stirring cylinder, wherein a shaft seal inner sleeve is fixedly arranged on the outer side of the stirring shaft, a shaft seal outer sleeve is rotatably connected to the outer side of the shaft seal inner sleeve, an elastic element is arranged on the outer side of the shaft seal outer sleeve, the elastic element is positioned between the stirring cylinder and the shaft seal outer sleeve and is fixedly connected with the stirring cylinder, and an oil duct is arranged on the shaft seal outer sleeve;
when the number of the oil passages is one, the oil passages are respectively communicated to the radial sealing positions of the shaft seal inner sleeve and the shaft seal outer sleeve and the axial sealing positions of the shaft seal inner sleeve and the shaft seal outer sleeve;
or when the number of the oil passages is not less than two, at least one oil passage is communicated with the radial sealing positions of the shaft seal inner sleeve and the shaft seal outer sleeve, and at least one oil passage is communicated with the axial sealing positions of the shaft seal inner sleeve and the shaft seal outer sleeve.
2. The shaft end sealing device for the vibration agitator as claimed in claim 1, wherein: when the number of the oil passages is one, the oil passages are respectively communicated with the radial sealing position of the shaft seal inner sleeve and the shaft seal outer sleeve and the axial sealing position of the shaft seal inner sleeve and the shaft seal outer sleeve and communicated with one end face of the shaft seal outer sleeve.
3. The shaft end sealing device for the vibration agitator as claimed in claim 1, wherein: when the number of the oil passages is not less than two, at least one oil passage is communicated with the radial sealing position of the shaft seal inner sleeve and the shaft seal outer sleeve, and at least one oil passage is communicated with the axial sealing position of the shaft seal inner sleeve and the shaft seal outer sleeve and communicated with one end face of the shaft seal outer sleeve.
4. The shaft end sealing device for the vibration agitator as claimed in claim 1, wherein: and friction rings are arranged at the radial sealing positions of the shaft seal inner sleeve and the shaft seal outer sleeve.
5. The shaft end sealing device for the vibration agitator as claimed in claim 4, wherein: the friction ring is a floating oil seal.
6. The shaft end sealing device for the vibration agitator as claimed in claim 1, wherein: and a pressing plate is arranged on the outer side of the elastic element, the pressing plate tightly presses the elastic element and then is fixedly connected with the stirring cylinder, and a gap is formed between the pressing plate and the shaft seal outer sleeve in the radial direction.
7. A shaft end sealing device for a vibration agitator as claimed in claim 1 or 4, wherein: the shaft seal inner sleeve is made of steel materials, and the shaft seal outer sleeve is made of cast iron materials.
8. A shaft end sealing device for a vibration agitator as claimed in claim 1 or 4, wherein: the shaft seal inner sleeve and the shaft seal outer sleeve are both made of cast iron materials.
9. The shaft end sealing device for the vibration agitator as claimed in claim 1, wherein: the elastic element is made of rubber materials.
10. The shaft end sealing device for the vibration agitator as claimed in claim 1, wherein: and a sealing ring is arranged between the shaft seal inner sleeve and the shaft seal outer sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020401557.7U CN212155814U (en) | 2020-03-26 | 2020-03-26 | Shaft end sealing device for vibration stirrer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020401557.7U CN212155814U (en) | 2020-03-26 | 2020-03-26 | Shaft end sealing device for vibration stirrer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212155814U true CN212155814U (en) | 2020-12-15 |
Family
ID=73717206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020401557.7U Active CN212155814U (en) | 2020-03-26 | 2020-03-26 | Shaft end sealing device for vibration stirrer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212155814U (en) |
-
2020
- 2020-03-26 CN CN202020401557.7U patent/CN212155814U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212155814U (en) | Shaft end sealing device for vibration stirrer | |
| CN201013892Y (en) | Axle head sealing device of double horizontal shaft mixer | |
| CN201201305Y (en) | Concrete mixer axle end structure | |
| CN202336931U (en) | Oil-free shaft end sealing structure of concrete stirrer | |
| JP3620944B2 (en) | Dust stop device for closed kneader | |
| CN201149088Y (en) | Novel seal device | |
| CN209875954U (en) | Double-acting ring and single-fixed ring interlocking internal pressure type sealing device | |
| CN210178922U (en) | Packing sealing device | |
| CN207421137U (en) | A kind of bearing arrangement of sludge agitation spiral | |
| CN218625413U (en) | Seal structure for wear-resistant ring of stirring shaft of internal mixer | |
| CN101865343A (en) | Novel pneumatic compacted end-face-seal rotary joint | |
| CN214439656U (en) | Wet ball mill bistrique seal structure | |
| CN201487436U (en) | Novel rotary joint | |
| CN207421136U (en) | A kind of bearing arrangement of the shouldered shaft set of sludge agitation spiral | |
| CN209565980U (en) | A kind of structure for preventing grinding machine spindle from wearing | |
| CN209925279U (en) | Cooling water pump for automobile engine | |
| CN201399841Y (en) | Mixing head for production of foaming sponge | |
| CN213260445U (en) | Sealing structure of plastic turnover pressurization type internal mixer | |
| CN104847900A (en) | Mixer shaft end sealing device | |
| CN112078047A (en) | Internal mixer with power equivalent sealing device | |
| CN218152356U (en) | Shaft seal structure of speed reducer of crane | |
| CN214534489U (en) | Shaft end sealing device | |
| CN206802310U (en) | A kind of waste rubber cracking device end part of driving shaft sealing structure | |
| CN111120660A (en) | Double-lip oil seal | |
| CN205013577U (en) | Sealed supporting arrangement of churn internal vibration ware |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 461000 southeast corner of Longxiang Road and Chenzhuang Street intersection in Xuchang City, Henan Province Patentee after: Detong Intelligent Technology Co.,Ltd. Address before: 461000 southeast corner of Longxiang Road and Chenzhuang Street intersection in Xuchang City, Henan Province Patentee before: Xuchang Detong vibration mixing technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |