CN219994386U - Non-lubrication shaft end sealing device of concrete mixer - Google Patents
Non-lubrication shaft end sealing device of concrete mixer Download PDFInfo
- Publication number
- CN219994386U CN219994386U CN202321149696.5U CN202321149696U CN219994386U CN 219994386 U CN219994386 U CN 219994386U CN 202321149696 U CN202321149696 U CN 202321149696U CN 219994386 U CN219994386 U CN 219994386U
- Authority
- CN
- China
- Prior art keywords
- sealing
- ring
- side wall
- sealing ring
- shaft
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 195
- 238000005461 lubrication Methods 0.000 title description 2
- 230000003068 static effect Effects 0.000 claims abstract description 16
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 239000010687 lubricating oil Substances 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 239000004576 sand Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 40
- 239000000956 alloy Substances 0.000 description 4
- 238000007667 floating Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Landscapes
- Accessories For Mixers (AREA)
Abstract
The utility model relates to the field of sealing devices, and discloses a lubrication-free shaft end sealing device of a concrete mixer. According to the utility model, the gap between the first two parts is reduced in a mode that the static sealing ring and the movable ring base are tightly attached, meanwhile, the movement of the movable sealing ring is not influenced, sand or other materials in the stirrer are prevented from leaking due to the clamping of the movable sealing ring due to other mediums at the joint of the lubricating oil and the movable sealing ring, the auxiliary ring is used as a compensation mechanism, the tightness of the end face is better, the inner side wall of the coupler is provided with a buckle, and the tightness of the connection can be improved when the coupler is connected with the end of a stirrer shaft, so that the looseness or the falling of the stirrer in the rotating process is prevented.
Description
Technical Field
The utility model relates to the field of sealing devices, in particular to a lubrication-free shaft end sealing device of a concrete mixer.
Background
The concrete mixer is an indispensable mechanical tool for mixing concrete, wherein the application of the building construction industry at home and abroad is the most widely, and the technical quality requirement on the sealing device at the shaft end of the concrete mixer is higher and higher along with the development of the modern society.
However, most of the existing sealing devices of concrete mixers adopt floating oil seals, the leakage in the floating ring seal is still larger, the equipment for recycling the leaked oil (dirty oil) in the floating ring seal is complex and huge and comprises an oil separator, a degassing tank and a control system, and particularly when the system is out of order due to the leakage in the floating ring seal, the danger of sealing an oil pollution process loop exists, the product quality is reduced, and even a catalyst is poisoned until the device is stopped, so that a non-lubricated shaft end sealing device of the concrete mixer is provided by a person skilled in the art to solve the problems.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a lubrication-free shaft end sealing device of a concrete mixer, which adopts a mode that a static sealing ring and a movable ring base are closely attached to reduce a gap between the first two parts, and meanwhile, the movement of a movable sealing ring is not influenced, sand or other materials in the mixer are prevented from leaking due to the clamping of the movable sealing ring due to other mediums at the joint of the movable sealing ring and the movable sealing ring, the sealing performance of the end face is better by taking an auxiliary ring as a compensation mechanism, the inner side wall of a coupler is provided with a buckle, the connection tightness of the coupler can be improved when the coupler is connected with the shaft end of the mixer, and the looseness or the falling of the coupler in the rotating process are prevented.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the lubrication-free shaft end sealing device of the concrete mixer comprises a first sealing shaft collar and a second sealing shaft collar, wherein the first sealing shaft collar comprises a first sealing shaft environment-friendly protective wall, the inner side wall of the first sealing shaft environment-friendly protective wall is provided with a shaft end sealing ring, the rear side wall of the shaft end sealing ring is fixedly connected with a plurality of spring bases distributed in a circumferential array, the middle position of the rear side wall of each spring base is fixedly connected with a powerful spring, the other end of each powerful spring is fixedly connected with a static ring base, and a static sealing ring is clamped in each static ring base;
the outer side wall of the second sealing collar is fixedly connected with a second sealing collar environment-friendly protection wall, a plurality of movable sealing rings distributed in a circumferential array are fixedly connected to the position, close to the rear side, of the inner part of the second sealing collar, the front side wall of each movable sealing ring is fixedly connected with a movable ring base, and each movable ring base is in contact with an adjacent static sealing ring;
through above-mentioned technical scheme, promote quiet ring base through powerful spring, promote the rotating ring base by quiet ring base again, can make its direct clearance reduce to improve the leakproofness, first sealed axle ring protection wall adopts high strength's alloy material with the second axle ring protection wall, can fine protection its inside structural component in the time of the protection gas tightness.
Further, the first sealing collar is in threaded connection with the inner side wall of the second sealing collar at a position close to the front end;
through the technical scheme, the first sealing collar is in threaded connection with the inner side wall of the second sealing collar, so that the maintenance accessory can be better detached or replaced.
Further, the inner side walls of the first sealing collar and the second sealing collar are connected with a main shaft;
through the technical scheme, the first sealing collar and the second sealing collar are both connected with the main shaft, so that the maintenance accessory can be replaced or detached conveniently.
Further, an oil filling port is formed in the upper side wall of the second sealing collar at the rear side, the inside is provided with the bottom of the oil filling port and the top of the oil duct, the outer side wall of the oil duct is provided with an oil duct sealing wall, a first yellow rubber sealing ring is arranged in the second sealing collar and located at the rear side of the oil duct, and the other end of the oil duct is provided with an oil filling port sealing plug;
through above-mentioned technical scheme, through injecting lubricating oil into the oiling mouth, can make to move the sealing ring and reduce its frictional force brought influence when carrying out rotary motion, the other end of oil duct is provided with the oiling sealing plug simultaneously, and the lateral wall of oil duct is provided with the oil duct sealing wall, can prevent that lubricating oil from leaking.
Further, a main shaft protection wall is arranged on the outer side wall of the main shaft;
through the technical scheme, the main shaft protection wall is made of high-strength alloy materials so as to ensure the durability of the main shaft.
Further, a coupling is connected to the front side of the main shaft in a threaded manner, an auxiliary ring is arranged on the outer side wall of the main shaft near the rear side, and a rear shaft end sealing ring is arranged on the rear side wall of the main shaft;
through above-mentioned technical scheme, the auxiliary ring is compensation mechanism and adopts spring design, utilizes elasticity to make sealed section closely laminate, and back axle head sealing washer prevents that the other end connector of mixer from leaking the material.
Further, a framework sealing ring is clamped at the position, close to the rear side, of the lower side wall of the shaft end sealing ring, a second yellow rubber sealing ring is arranged on the rear side wall of the framework sealing ring, an o-shaped sealing ring is arranged on the rear side wall of the second yellow rubber sealing ring, a shaft body sealing ring is arranged on the rear side wall of the o-shaped sealing ring, and an oil seal is arranged on the upper side wall of the shaft body sealing ring;
through above-mentioned technical scheme, the confidentiality of skeleton oil seal circle is good, and the consumptive material is few, and life cycle is long, and o type sealing washer is fit for multiple motion mode and is fit for multiple sealing medium, and the axis body sealing washer is in order to prevent that lubricating oil from leaking into the main shaft and leading to the main shaft to lead to malfunctioning because of leaking.
Further, two buckles are arranged on the inner side wall of the coupler, and the two buckles are distributed in a mirror image opposite mode;
through above-mentioned technical scheme, make its shaft coupling and the connection of mixer axle head more have compactibility through the buckle.
The utility model has the following beneficial effects:
1. according to the utility model, the gap between the movable ring base and the static sealing ring is reduced by the stretching action of the strong spring until the gap is tightly attached, so that the tightness between the movable ring base and the static sealing ring is improved, and the rotary motion of the movable sealing ring is not influenced.
2. In the utility model, the o-shaped sealing ring, the yellow rubber sealing ring and the framework sealing ring are adopted, the manufacturing cost of the sealing rings is simple, the sealing performance is good, the service life is long, and the cost can be saved.
3. In the utility model, the auxiliary ring is arranged at the rear side of the main shaft, is in a spring shape and keeps fit and relatively slides under the action of the flow force pressure and the elasticity of the auxiliary ring, thereby preventing sand and other materials in the stirrer from leaking.
Drawings
FIG. 1 is a cross-sectional view of a non-lubricated shaft end sealing device for a concrete mixer in accordance with the present utility model;
FIG. 2 is a perspective view of a non-lubricated shaft end sealing device for a concrete mixer in accordance with the present utility model;
FIG. 3 is a top view of a non-lubricated shaft end sealing device for a concrete mixer in accordance with the present utility model;
fig. 4 is a front view of a lubrication-free shaft end sealing device of a concrete mixer.
Legend description:
1. a main shaft; 2. a framework sealing ring; 3. a shaft end sealing ring; 4. a spring base; 5. a strong spring; 6. a stationary ring base; 7. the second sealing shaft protects the wall; 8. an oil passage; 9. an oil filling port; 10. a dynamic seal ring; 11. a first yellow rubber sealing ring; 12. an auxiliary ring; 13. a second yellow rubber sealing ring; 14. an o-type sealing ring; 15. an oil filling port sealing plug; 16. an oil seal; 17. a shaft seal ring; 18. a static seal ring; 19. a rear shaft end sealing ring; 21. a coupling; 22. a first sealing collar; 23. a second sealing collar; 24. a buckle; 25. a moving ring base; 26. the first sealing shaft protects the wall; 27. an oil passage sealing wall; 28. and a spindle protective wall.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, one embodiment provided by the present utility model is: the utility model provides a concrete mixer does not have lubricated axle head sealing device, including first seal collar 22, second seal collar 23, first seal collar 22 is including first seal axle ring protection wall 26, the inside wall of first seal axle ring protection wall 26 is provided with axle head sealing washer 3, the back lateral wall fixedly connected with of axle head sealing washer 3 is a plurality of spring bases 4 that distribute in circumference array, the back lateral wall intermediate position fixedly connected with powerful spring 5 of every spring base 4, the other end fixedly connected with quiet ring base 6 of every powerful spring 5, the joint has quiet sealing ring 18 in every quiet ring base 6, the outside wall fixedly connected with second seal axle ring protection wall 7 of second seal collar 23, the inside position fixedly connected with of the back side is a plurality of moving seal rings 10 that are circumference array distribution, moving seal ring 10's preceding lateral wall fixedly connected with moving seal ring base 25, the moving seal ring base 25 contacts rather than adjacent quiet sealing ring 18, promote quiet ring base 6 through powerful spring 5, promote moving seal ring base 25 by quiet ring base 6, can make its direct clearance shrink, thereby improve the sealing performance, the high alloy part of the inside of second axle protection wall with high seal ring protection wall is protected to the high strength of second seal axle protection wall simultaneously.
The first sealing collar 22 is in threaded connection with the inner side wall of the second sealing collar 23 near the front end, the first sealing collar 22 is in threaded connection with the inner side wall of the second sealing collar 23, maintenance fittings can be better detached and replaced, the inner side walls of the first sealing collar 22 and the second sealing collar 23 are both connected with the main shaft 1, the main shaft 1 is connected with the first sealing collar 22 and the second sealing collar 23, the maintenance fittings are convenient to replace or detach, the oil filling port 9 is arranged on the upper side wall of the second sealing collar 23 near the rear side, the oil duct 8 is arranged in the second sealing collar 23, the bottom of the oil filling port 9 is connected with the top of the oil duct 8, the oil duct sealing wall 27 is arranged on the outer side wall of the oil duct 8, the first yellow rubber sealing ring 11 is arranged in the inner side of the second sealing collar 23 and positioned on the rear side of the oil duct 8, the oil duct 8 is provided with the oil filling port sealing plug 15 on the other end, through injecting lubricating oil into the oiling mouth 9, can make and move the influence that its frictional force brought in sealing ring 10 when carrying out rotary motion, the other end of oil duct 8 is provided with oiling mouth sealing plug 15 simultaneously, the lateral wall of oil duct 8 is provided with oil duct sealing wall 27, can prevent that lubricating oil from leaking, the lateral wall of main shaft 1 is provided with main shaft protection wall 28, main shaft protection wall 28 adopts high strength alloy material in order to guarantee the durability of main shaft 1, the front side threaded connection of main shaft 1 has shaft coupling 21, the lateral wall of main shaft 1 is provided with auxiliary ring 12 near the rear side position, the rear side wall of main shaft 1 is provided with back axle end sealing washer 19, auxiliary ring 12 is compensation mechanism and adopts the spring design, utilize elasticity to make the seal section closely laminate, back axle end sealing washer 19 prevents that the other end connector of mixer from leaking the material.
The lower side wall of the shaft end sealing ring 3 is connected with the framework sealing ring 2 in a clamping mode near the rear side, the rear side wall of the framework sealing ring 2 is provided with the second yellow rubber sealing ring 13, the rear side wall of the second yellow rubber sealing ring 13 is provided with the o-shaped sealing ring 14, the rear side wall of the o-shaped sealing ring 14 is provided with the shaft body sealing ring 17, the upper side wall of the shaft body sealing ring 17 is provided with the oil seal 16, the confidentiality of the framework sealing ring 2 is good, the consumption is low, the service cycle is long, the o-shaped sealing ring 14 is suitable for various movement modes and is suitable for various sealing mediums, the shaft body sealing ring 17 is used for preventing lubricating oil from leaking into the main shaft 1 to cause failure due to leakage, the inner side wall of the coupler 21 is provided with two buckles 24, the two buckles 24 are in mirror image opposite distribution, and the coupling 21 and the shaft end of the stirrer are connected through the buckles 24 more compactly.
Working principle: before the shaft end of the concrete mixer is assembled, the coupler 21 is in threaded connection with the main shaft 1, the second sealing collar 23 is in threaded connection with the main shaft 1, the first sealing collar 22 is in threaded connection with the second sealing collar 23, the main shaft 1 is in threaded connection, the rear shaft end sealing ring 19 is in threaded connection with the rear side wall of the main shaft 1, the rear side of the coupler 21 is connected with the shaft end of the concrete mixer after the assembly is completed, lubricating oil is added into the second sealing collar 23 from the oil filling port 9 before the concrete mixer works, the lubricating oil enters the second sealing collar 23 along the oil duct 8, the friction influence of the movable sealing ring 10 in rotating motion is reduced by being contacted with the movable sealing ring 10, an oil seal 16 is arranged at the same time, the lower side wall of the oil seal 16 is provided with a shaft body sealing ring 17 to realize double sealing, the lubricating oil is prevented from leaking into the main shaft 1 or other parts to cause structural damage, the powerful spring 5 in the first sealing collar 22 pushes the static ring base 6 through rotating acting force, the static ring base 6 pushes the static sealing ring 18 to firmly cling to the dynamic ring base 25, therefore the sealing ring 12 is improved, the sealing performance between the first sealing collar 22 and the second sealing collar 23 is tightly attached to the shaft end face of the sealing ring 2 by adopting the compensating spring, the elastic force is adopted as an auxiliary sealing mechanism, and the sealing ring is tightly attached to the sealing ring 2 by the sealing ring 2, and the sealing ring is tightly attached to the sealing ring 2 by adopting the elastic force sealing mechanism.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (8)
1. The utility model provides a concrete mixer does not have lubricated axle head sealing device, includes first sealing collar (22), second sealing collar (23), its characterized in that: the first sealing collar (22) comprises a first sealing shaft protection wall (26), the inner side wall of the first sealing shaft protection wall (26) is provided with a shaft end sealing ring (3), the rear side wall of the shaft end sealing ring (3) is fixedly connected with a plurality of spring bases (4) distributed in a circumferential array, the middle position of the rear side wall of each spring base (4) is fixedly connected with a powerful spring (5), the other end of each powerful spring (5) is fixedly connected with a static ring base (6), and a static sealing ring (18) is clamped in each static ring base (6);
the outer side wall of the second sealing collar (23) is fixedly connected with a second sealing shaft environment-friendly protection wall (7), a plurality of movable sealing rings (10) distributed in a circumferential array are fixedly connected to the position, close to the rear side, of the second sealing collar (23), the front side wall of each movable sealing ring (10) is fixedly connected with a movable ring base (25), and each movable ring base (25) is in contact with an adjacent static sealing ring (18).
2. A non-lubricated shaft end sealing device for a concrete mixer according to claim 1, wherein: the first sealing collar (22) is connected with the inner side wall of the second sealing collar (23) at the front end in a threaded manner.
3. A non-lubricated shaft end sealing device for a concrete mixer according to claim 2, wherein: the inner side walls of the first sealing collar (22) and the second sealing collar (23) are connected with a main shaft (1).
4. A non-lubricated shaft end sealing device for a concrete mixer according to claim 2, wherein: the upper side wall of the second sealing collar (23) is provided with an oil filling port (9) near the rear side position, the inside of the second sealing collar (23) is provided with an oil duct (8), the bottom of the oil filling port (9) is connected with the top of the oil duct (8), the outer side wall of the oil duct (8) is provided with an oil duct sealing wall (27), the inside of the second sealing collar (23) and the rear side position of the oil duct (8) are provided with a first yellow rubber sealing ring (11), and the other end of the oil duct (8) is provided with an oil filling port sealing plug (15).
5. A non-lubricated shaft end sealing device for a concrete mixer according to claim 3, wherein: the outer side wall of the main shaft (1) is provided with a main shaft protection wall (28).
6. A non-lubricated shaft end sealing device for a concrete mixer according to claim 3, wherein: the front side threaded connection of main shaft (1) has shaft coupling (21), the lateral wall of main shaft (1) is provided with auxiliary ring (12) near the rear side position, the rear side wall of main shaft (1) is provided with back axle head sealing washer (19).
7. A non-lubricated shaft end sealing device for a concrete mixer according to claim 1, wherein: the novel shaft end sealing device is characterized in that a framework sealing ring (2) is clamped on the lower side wall of the shaft end sealing ring (3) close to the rear side, a second yellow rubber sealing ring (13) is arranged on the rear side wall of the framework sealing ring (2), an o-shaped sealing ring (14) is arranged on the rear side wall of the second yellow rubber sealing ring (13), a shaft body sealing ring (17) is arranged on the rear side wall of the o-shaped sealing ring (14), and an oil seal (16) is arranged on the upper side wall of the shaft body sealing ring (17).
8. A non-lubricated shaft end sealing device for a concrete mixer according to claim 6, wherein; the inner side wall of the coupler (21) is provided with two buckles (24), and the two buckles (24) are distributed in a mirror image opposite mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321149696.5U CN219994386U (en) | 2023-05-15 | 2023-05-15 | Non-lubrication shaft end sealing device of concrete mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321149696.5U CN219994386U (en) | 2023-05-15 | 2023-05-15 | Non-lubrication shaft end sealing device of concrete mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219994386U true CN219994386U (en) | 2023-11-10 |
Family
ID=88607008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321149696.5U Active CN219994386U (en) | 2023-05-15 | 2023-05-15 | Non-lubrication shaft end sealing device of concrete mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219994386U (en) |
-
2023
- 2023-05-15 CN CN202321149696.5U patent/CN219994386U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201443592U (en) | Combined device for sealing rotary shaft | |
| CN210661375U (en) | Sealing assembly for lower frame body of coal mill | |
| CN219994386U (en) | Non-lubrication shaft end sealing device of concrete mixer | |
| CN201170316Y (en) | Break-free machine injection and plastic type multipurpose shaft gland | |
| CN221034421U (en) | Independent double-passage rotary joint | |
| CN208417540U (en) | A kind of sealing device for mixer | |
| CN207814446U (en) | Mechanical seal structure and polymerization reaction kettle for polymerization reaction kettle end face seal | |
| CN219102033U (en) | Rotary shaft sealing structure | |
| CN220816548U (en) | Dynamic ring internal mechanical oil seal | |
| CN214367339U (en) | Bearing frame that leakproofness is strong | |
| CN206694558U (en) | A kind of rotor seals of banbury | |
| CN215486323U (en) | Oil inlet structure for fuel tank of gasoline engine | |
| CN219345480U (en) | Sealing ring and sealing structure thereof | |
| CN217736268U (en) | Mixer seal structure | |
| CN213899878U (en) | Sealing device for water pump shaft | |
| CN218818162U (en) | Novel hydraulic sealing structure for internal mixer | |
| CN220749036U (en) | High temperature-resistant and high pressure-resistant mechanical sealing element of stirring kettle | |
| CN101220864A (en) | Break-free machine injection and plastic type multipurpose shaft gland | |
| CN212804228U (en) | Double-seal ring waterproof sealing structure | |
| CN217814583U (en) | Waterproof sealing structure of bearing | |
| CN210920123U (en) | Double-end-face mechanical sealing device | |
| CN216666500U (en) | Novel anhydrous lubrication mechanical sealing device for side stirring | |
| CN212536658U (en) | Feeding sealing structure of wet mill | |
| CN209309330U (en) | A kind of inflatable end face seal | |
| CN217108212U (en) | Novel self-interacting double mechanical seal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |