CN214008067U - Flexible connection automatic centering sealing device - Google Patents
Flexible connection automatic centering sealing device Download PDFInfo
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- CN214008067U CN214008067U CN202022688013.6U CN202022688013U CN214008067U CN 214008067 U CN214008067 U CN 214008067U CN 202022688013 U CN202022688013 U CN 202022688013U CN 214008067 U CN214008067 U CN 214008067U
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Abstract
The utility model discloses a flexible coupling self-centering sealing device, include: (mixing) shaft, connect at the bearing frame of (mixing) shaft one end, cover at epaxial sealed axle sleeve of stirring and with stirring cell body fixed connection's fixing base, sealed axle sleeve includes: the device comprises a silicon carbide shaft sleeve, a supporting shaft sleeve, a shell and a pressing cover which are arranged from inside to outside. Wherein, the carborundum axle sleeve closely overlaps the one end of (mixing) shaft and with the clearance fit of (mixing) shaft. The supporting shaft sleeve is sleeved in the middle of the silicon carbide shaft sleeve, and two ends of the supporting shaft sleeve are connected with K-shaped rings; the supporting shaft sleeve is provided with a water cooling channel. The shell is sleeved outside the supporting shaft sleeve, and the outer wall of the shell is in flexible connection with the outer wall of the fixed seat. The pressing cover is respectively abutted against the K-shaped ring, the supporting shaft sleeve and the shell and is fixedly connected through a locking nut. The utility model discloses a flexible coupling automatic centering sealing device can be better prevent the thick liquid toward leaking outward, has improved the life of sealing washer simultaneously.
Description
Technical Field
The utility model relates to a sealing device technical field. More specifically, the utility model relates to a flexible coupling self-centering sealing device.
Background
Titanium dioxide is an important inorganic chemical pigment, is considered as a white pigment with the best performance in the world, and is widely applied to the industries of coatings, papermaking, plastics, rubber, cosmetics and the like. The titanium dioxide is prepared by two methods, namely a sulfuric acid method and a chlorination method, and the titanium dioxide is generally prepared by the sulfuric acid method at home at present.
The horizontal long stirring tank is a device for producing titanium dioxide, and in the process of producing titanium dioxide by a sulfuric acid method, slurry of metatitanic acid needs to be peeled off to the horizontal long stirring tank for stirring so as to obtain good fluidity for further treatment. Because the horizontal long stirring tank body and the stirring shaft are longer, the bearing support span at two ends of the stirring shaft is large; under (mixing) shaft operating condition, the effect axiality of resistance is received to the (mixing) shaft can descend, and the axiality of the sealed axle sleeve at (mixing) shaft both ends is unchangeable, will lead to the axiality of (mixing) shaft and sealed axle sleeve to differ, and then the skew degree that leads to the centre of a circle is big, make (mixing) shaft and sealed axle sleeve friction big, and then lead to sealed axle sleeve to receive serious wearing and tearing and shorten life, if in time the adjustment can not lead to the problem of leaking the thick liquid moreover.
In order to reduce the abrasion of the sealing shaft sleeve and the problem of slurry leakage caused by the abrasion of the sealing shaft sleeve, the filler in the sealing shaft sleeve needs to be compressed and adjusted or replaced every 6-8 hours. However, such operation cannot fundamentally solve the problems of abrasion of the sealing shaft sleeve and slurry leakage, and the electric process of maintenance operation becomes complicated, thereby affecting the working efficiency.
Therefore, it is highly desirable to design a flexible connection self-centering sealing device capable of ensuring the coaxiality precision between the sealing shaft sleeve and the stirring shaft.
SUMMERY OF THE UTILITY MODEL
The object of the present invention is to solve at least the above drawbacks and to provide at least the advantages that will be explained later.
In order to realize according to these objects and other advantages of the utility model provide a flexible coupling self-centering sealing device, including the (mixing) shaft, connect at the bearing frame of (mixing) shaft one end, overlap at the epaxial sealed axle sleeve of (mixing) and with stirring cell body fixed connection's fixing base, sealed axle sleeve includes: the device comprises a silicon carbide shaft sleeve, a supporting shaft sleeve, a shell and a pressing cover which are arranged from inside to outside.
And the silicon carbide shaft sleeve is tightly sleeved at one end of the stirring shaft and is in clearance fit with the stirring shaft.
The supporting shaft sleeve is sleeved in the middle of the silicon carbide shaft sleeve, and two ends of the supporting shaft sleeve are also connected with K-shaped rings to prevent the supporting shaft sleeve from sliding towards the two ends; and a water cooling channel is formed on the supporting shaft sleeve.
The shell is sleeved outside the supporting shaft sleeve, a first port of the shell protrudes inwards and extends to the silicon carbide shaft sleeve, and the inner side surface of the inward protrusion is abutted to the K-shaped ring; the second port of the shell protrudes and extends outwards; the outer wall of the shell is in flexible connection with the outer wall of the fixed seat.
And the first side surface of the pressing cover is abutted with the K-shaped ring, the second side surface of the pressing cover is abutted with the supporting shaft sleeve, and the third side surface and the fourth side surface of the pressing cover are abutted with the second port of the shell and are fixedly connected through a locking nut.
Among the above-mentioned technical scheme, at first, fixing base and stirring cell body fixed connection, and casing and fixing base flexible coupling for the axiality of the inside K type circle of casing and carborundum axle sleeve can not receive the compulsory influence of the axiality of fixing base and (mixing) shaft, and the axiality accessible supporting axle sleeve of K type circle and carborundum axle sleeve guarantees with the accurate normal running fit of carborundum axle sleeve, thereby has improved the life of sealing washer by a wide margin, and then has guaranteed the utility model discloses flexible coupling self-centering sealing device's life-span.
Secondly, carborundum axle sleeve and (mixing) shaft clearance fit have both guaranteed the convenient dismouting of axle sleeve, can ensure again that the carborundum axle sleeve can follow the (mixing) shaft and rotate together, have guaranteed the axiality of carborundum axle sleeve and (mixing) shaft.
And a high-degree sealing group is formed by the K-shaped ring and the silicon carbide shaft sleeve so as to prevent slurry from leaking outwards from a gap between the stirring shaft and the sealing shaft sleeve along with the rotation of the stirring shaft.
In addition, the silicon carbide shaft sleeve is adopted, and the silicon carbide material is hard and smooth, so that the kinematic pair and the rotary sealing made of the silicon carbide shaft sleeve are more reliable in precision and longer in service life.
And finally, before the stirring shaft is started to rotate, water is supplied to the water cooling channel, so that a good lubricating effect can be ensured between the silicon carbide shaft sleeve and the supporting shaft sleeve which rotate relatively, the abrasion loss between the kinematic pairs is reduced, and the silicon carbide shaft sleeve and the supporting shaft sleeve can be cooled to prolong the service life of the flexible connection automatic centering sealing device.
Preferably, the bearing bush is in running fit with the silicon carbide bush.
Preferably, the K-rings comprise a first K-ring, a second K-ring and a third K-ring, the first K-ring and the second K-ring are tightly sleeved at the first end of the silicon carbide shaft sleeve, and the third K-ring is tightly sleeved at the second end of the silicon carbide shaft sleeve. When the utility model discloses a flexible coupling self-centering sealing device is behind longer live time, even first K type circle has the condition of slight damage, a small amount of thick liquid can leak before the sealed of second K type circle and carborundum axle sleeve component, can also continue to organize the thick liquid and outwards leak.
Preferably, the diameter of the hollow part in the middle of the fixing seat is 1-2 cm larger than that of the stirring shaft, so that the rotation of the stirring shaft is not influenced.
Preferably, the fixing seat is of a middle hollow structure with a T-shaped cross section, a first side face of the fixing seat is connected with the stirring groove body, a second side face of the fixing seat is connected with the shell through flexible connection, and a gap is formed between the fixing seat and the stirring shaft.
Preferably, the stirring shaft further comprises a rotation limiting iron plate, one end of the rotation limiting iron plate is connected with the pressing cover, the other end of the rotation limiting iron plate is connected with the bearing seat to limit the rotation of the shell, and the shell is not limited in vertical and horizontal offset on the circumferential axis to ensure that the whole shell is concentric with the height of the stirring shaft.
Preferably, the water cooling channel is provided with a water inlet nozzle and a water outlet nozzle so as to supply water and drain water to the water cooling channel.
The utility model discloses at least, include following beneficial effect:
at first, fixing base and stirring cell body fixed connection, and casing and fixing base flexible coupling for the axiality of the inside K type circle of casing and carborundum axle sleeve can not receive the compulsory influence of the axiality of fixing base and (mixing) shaft, and the axiality accessible supporting axle sleeve of K type circle and carborundum axle sleeve guarantees with the accurate normal running fit of carborundum axle sleeve, thereby has improved the life of sealing washer by a wide margin, and then has guaranteed the utility model discloses flexible coupling self-centering sealing device's life-span.
Secondly, carborundum axle sleeve and (mixing) shaft clearance fit have both guaranteed the convenient dismouting of axle sleeve, can ensure again that the carborundum axle sleeve can follow the (mixing) shaft and rotate together, have guaranteed the axiality of carborundum axle sleeve and (mixing) shaft.
And a high-degree sealing group is formed by the K-shaped ring and the silicon carbide shaft sleeve so as to prevent slurry from leaking outwards from a gap between the stirring shaft and the sealing shaft sleeve along with the rotation of the stirring shaft.
In addition, the silicon carbide shaft sleeve is adopted, and the silicon carbide material is hard and smooth, so that the kinematic pair and the rotary sealing made of the silicon carbide shaft sleeve are more reliable in precision and longer in service life.
Then, before the stirring shaft is started to rotate, water is supplied to the water cooling channel, so that a good lubricating effect can be ensured between the silicon carbide shaft sleeve and the supporting shaft sleeve which rotate relatively, the abrasion loss between the kinematic pairs is reduced, and the silicon carbide shaft sleeve and the supporting shaft sleeve can be cooled to prolong the service life of the flexible connection automatic centering sealing device.
Furthermore, work as the utility model discloses a flexible coupling self-centering sealing device is after longer live time, even first K type circle has the condition of slight damage, a small amount of thick liquid can leak before the sealed of second K type circle and carborundum axle sleeve constitution, can also continue to organize the thick liquid and outwards leak.
Finally, the whole shell is ensured to be concentric with the height of the stirring shaft by limiting the rotation of the shell through the iron plate, but not limiting the up-down and left-right offset of the shell on the circumferential axis.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural view of a flexible connection self-centering sealing device according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a flexible connection self-centering sealing device according to embodiment 2 of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
Example 1
Fig. 1 shows a form of realization of the utility model, a flexible coupling self-centering sealing device, including (mixing) shaft 1, connect at the bearing frame 2 of (mixing) shaft 1 one end, cover on (mixing) shaft 1 sealing shaft sleeve 3 and with 4 fixed connection's of stirring tank fixing base 5, sealing shaft sleeve 3 includes: a silicon carbide sleeve 31, a supporting sleeve 32, a shell 33 and a pressing cover 34 are arranged from the inside to the outside.
And the silicon carbide shaft sleeve 31 is tightly sleeved at one end of the stirring shaft 1 and is in clearance fit with the stirring shaft 1.
A support shaft sleeve 32 sleeved on the middle part of the silicon carbide shaft sleeve 31, wherein both ends of the support shaft sleeve 32 are also connected with K-shaped rings 321 to prevent the support shaft sleeve 32 from sliding towards both ends; the support sleeve 32 is provided with a water cooling channel 322.
A housing 33, which is sleeved outside the support shaft sleeve 32, wherein a first port of the housing 33 protrudes inwards and extends to the silicon carbide shaft sleeve 31, and the inner side surface of the inward protrusion abuts against the K-ring 321; the second port of the housing 33 protrudes and extends outward; the outer wall of the shell 33 is in flexible connection with the outer wall of the fixed seat 5.
And the pressing cover 34 is abutted with the K-shaped ring 321 on a first side surface, abutted with the support shaft sleeve 32 on a second side surface, and abutted with the second port of the shell 33 on a third side surface and a fourth side surface, and is fixedly connected through a locking nut.
The scheme of this embodiment, at first, fixing base and stirring groove body fixed connection, and casing and fixing base flexible coupling for the axiality of the inside K type circle of casing and carborundum axle sleeve can not receive the compulsory influence of the axiality of fixing base and (mixing) shaft, and the axiality accessible supporting axle sleeve of K type circle and carborundum axle sleeve guarantees with the accurate normal running fit of carborundum axle sleeve, thereby has improved the life of sealing washer by a wide margin, and then has guaranteed the utility model discloses flexible coupling self-centering sealing device's life-span. Secondly, carborundum axle sleeve and (mixing) shaft clearance fit have both guaranteed the convenient dismouting of axle sleeve, can ensure again that the carborundum axle sleeve can follow the (mixing) shaft and rotate together, have guaranteed the axiality of carborundum axle sleeve and (mixing) shaft. And a high-degree sealing group is formed by the K-shaped ring and the silicon carbide shaft sleeve so as to prevent slurry from leaking outwards from a gap between the stirring shaft and the sealing shaft sleeve along with the rotation of the stirring shaft. In addition, the silicon carbide shaft sleeve is adopted, and the silicon carbide material is hard and smooth, so that the kinematic pair and the rotary sealing made of the silicon carbide shaft sleeve are more reliable in precision and longer in service life.
Example 2
Fig. 2 shows another implementation form of the present invention, a flexible connection self-centering sealing device, which comprises a stirring shaft 1, a bearing seat 2 connected to one end of the stirring shaft 1, a sealing shaft sleeve 3 sleeved on the stirring shaft 1, and a fixing seat 5 fixedly connected to a stirring groove body 4, wherein the sealing shaft sleeve 3 comprises: a silicon carbide sleeve 31, a supporting sleeve 32, a shell 33 and a pressing cover 34 are arranged from the inside to the outside.
And the silicon carbide shaft sleeve 31 is tightly sleeved at one end of the stirring shaft 1 and is in clearance fit with the stirring shaft 1.
A support shaft sleeve 32 sleeved on the middle part of the silicon carbide shaft sleeve 31, wherein both ends of the support shaft sleeve 32 are also connected with K-shaped rings 321 to prevent the support shaft sleeve 32 from sliding towards both ends; the support sleeve 32 is provided with a water cooling channel 322.
A housing 33, which is sleeved outside the support shaft sleeve 32, wherein a first port of the housing 33 protrudes inwards and extends to the silicon carbide shaft sleeve 31, and the inner side surface of the inward protrusion abuts against the K-ring 321; the second port of the housing 33 protrudes and extends outward; the outer wall of the shell 33 is in flexible connection with the outer wall of the fixed seat 5.
And the pressing cover 34 is abutted with the K-shaped ring 321 on a first side surface, abutted with the support shaft sleeve 32 on a second side surface, and abutted with the second port of the shell 33 on a third side surface and a fourth side surface, and is fixedly connected through a locking nut.
Further, the support sleeve 32 is rotatably fitted to the silicon carbide sleeve 31.
Further, the K-rings 321 include first, second and third K-rings, the first and second K-rings are tightly sleeved at the first end of the silicon carbide shaft sleeve 31, and the third K-ring is tightly sleeved at the second end of the silicon carbide shaft sleeve 31. When the utility model discloses a flexible coupling self-centering sealing device is behind longer live time, even first K type circle has the condition of slight damage, a small amount of thick liquid can leak before the sealed of second K type circle and carborundum axle sleeve component, can also continue to organize the thick liquid and outwards leak.
Furthermore, the diameter of the hollow part in the middle of the fixing seat 5 is 1-2 cm larger than that of the stirring shaft 1, so that the rotation of the stirring shaft 1 is not influenced.
Further, fixing base 5 is the middle part hollow structure that has T shape cross-section, the first side of fixing base 5 is connected with stirring tank body 4, the second side of fixing base 5 pass through the flexible coupling with casing 33 is connected, just fixing base 5 with have the clearance between the (mixing) shaft 1.
Further, the stirring shaft further comprises a rotation limiting iron plate 6, wherein one end of the rotation limiting iron plate 6 is connected with the pressing cover 34, and the other end of the rotation limiting iron plate is connected to the bearing seat 2 so as to limit the rotation of the shell 33, but the up-down and left-right deviation of the shell 33 on the circumferential axis is not limited, and the whole shell 33 is ensured to be concentric with the height of the stirring shaft 1.
Further, a water inlet 3221 and a water outlet 3222 are disposed on the water cooling channel 322, so as to supply water and discharge water to the water cooling channel.
The scheme of this embodiment, on embodiment 1's basis, works as the utility model discloses a flexible coupling self-centering sealing device is after longer live time, even first K type circle has the condition of slight damage, a small amount of thick liquid can leak before the sealed of second K type circle and carborundum axle sleeve constitution, can also continue to organize the thick liquid and outwards leak. Secondly, the whole shell is ensured to be concentric with the height of the stirring shaft by limiting the rotation of the shell through the iron plate, but not limiting the up-down and left-right deviation of the shell on the circumferential axis.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications listed in the specification and the examples. It can be applicable to various and be fit for the utility model discloses a field completely. Additional modifications will readily occur to those skilled in the art. Therefore, the invention is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (7)
1. A flexible connection automatic centering sealing device comprises a stirring shaft, a bearing seat connected with one end of the stirring shaft, a sealing shaft sleeve sleeved on the stirring shaft, and a fixed seat fixedly connected with a stirring groove body,
the seal bushing includes: the silicon carbide shaft sleeve, the supporting shaft sleeve, the shell and the pressing cover are arranged from inside to outside;
the silicon carbide shaft sleeve is tightly sleeved at one end of the stirring shaft and is in clearance fit with the stirring shaft;
the supporting shaft sleeve is sleeved in the middle of the silicon carbide shaft sleeve, and two ends of the supporting shaft sleeve are also connected with K-shaped rings to prevent the supporting shaft sleeve from sliding towards the two ends; a water cooling channel is formed in the supporting shaft sleeve;
the shell is sleeved outside the supporting shaft sleeve, a first port of the shell protrudes inwards and extends to the silicon carbide shaft sleeve, and the inner side surface of the inward protrusion is abutted to the K-shaped ring; the second port of the shell protrudes and extends outwards; the outer wall of the shell is in flexible connection with the outer wall of the fixed seat;
and the first side surface of the pressing cover is abutted with the K-shaped ring, the second side surface of the pressing cover is abutted with the supporting shaft sleeve, and the third side surface and the fourth side surface of the pressing cover are abutted with the second port of the shell and are fixedly connected through a locking nut.
2. The flexible connection self-centering seal according to claim 1, wherein said support boss is rotationally engaged with said silicon carbide boss.
3. The flexible connection self-centering seal according to claim 1, wherein said K-rings comprise first, second and third K-rings, said first and second K-rings being closely fitted over said first end of said silicon carbide sleeve, said third K-ring being closely fitted over said second end of said silicon carbide sleeve.
4. The flexible connection self-centering sealing device as claimed in claim 1, wherein the diameter of the hollow part in the middle of the fixing seat is 1-2 cm larger than the diameter of the stirring shaft so as not to affect the rotation of the stirring shaft.
5. The flexible connection self-centering sealing device as claimed in claim 1, wherein the fixing seat is a hollow structure with a T-shaped cross section, the first side surface of the fixing seat is connected with the stirring tank body, the second side surface of the fixing seat is connected with the housing through flexible connection, and a gap is formed between the fixing seat and the stirring shaft.
6. The flexible connection self-centering seal according to claim 5, further comprising a rotation-limiting iron plate, wherein one end of the rotation-limiting iron plate is connected to the compression cap and the other end is connected to a bearing seat.
7. The flexible connection self-centering sealing device according to claim 1, wherein said water cooling channel is provided with a water inlet nozzle and a water outlet nozzle for supplying and discharging water to and from the water cooling channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022688013.6U CN214008067U (en) | 2020-11-19 | 2020-11-19 | Flexible connection automatic centering sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022688013.6U CN214008067U (en) | 2020-11-19 | 2020-11-19 | Flexible connection automatic centering sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214008067U true CN214008067U (en) | 2021-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022688013.6U Active CN214008067U (en) | 2020-11-19 | 2020-11-19 | Flexible connection automatic centering sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214008067U (en) |
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2020
- 2020-11-19 CN CN202022688013.6U patent/CN214008067U/en active Active
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