CN204371750U - A kind of axle sleeve adopting bolt structure - Google Patents
A kind of axle sleeve adopting bolt structure Download PDFInfo
- Publication number
- CN204371750U CN204371750U CN201420653463.3U CN201420653463U CN204371750U CN 204371750 U CN204371750 U CN 204371750U CN 201420653463 U CN201420653463 U CN 201420653463U CN 204371750 U CN204371750 U CN 204371750U
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- CN
- China
- Prior art keywords
- axle sleeve
- press cover
- type circle
- outer press
- rotating ring
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of axle sleeve adopting bolt structure, comprise external axle sleeve, rotating ring, stationary ring, internal gland, outer press cover, lining and internal axle sleeve, described internal axle sleeve and external axle sleeve are by the first screw fastening, and be provided with the first packing ring between the first screw and internal axle sleeve, the 2nd O type circle is provided with between described internal axle sleeve and external axle sleeve, the two ends of the inwall of described external axle sleeve are also blocked respectively the first axle sleeve O type circle and the second axle sleeve O type circle, described internal axle sleeve is arranged with driving shrink-ring away from one end of external axle sleeve, shrink-ring is driven to be arranged with the base plate and cover plate that are connected by lock bolt outward successively, the lower end of described base plate is arranged with positioning block, described outer press cover is fixed on the below of positioning block by positioning block screw, and card has lining between outer press cover and positioning block, and lining is fixed by lining screw and outer press cover, the utility model compact structure, processing cost is low, good sealing effect, wear-resistant corrosion resistant degree is high.
Description
Technical field
The utility model belongs to axle sleeve structure technical field, particularly relates to a kind of axle sleeve adopting bolt structure.
Background technique
The harmful gases such as along with national economy and social development, China increases sustainedly and stably for the demand of electric power, the sulfur dioxide of especially coal-burning power plant's discharge are very large for the impact such as global warming, acid rain.Along with announcement and the enforcement of relevant law and regulation, the consciousness of people to environmental protection is strengthened further, and flue-gas desulfurizing engineering is promptly universal in the coal-burning power plant of China to come.Wherein mainly comprise the FGD engineering that people are called for short usually.Due to the key effect of absorption tower recycle pump in FGD engineering, be also extremely strict to the requirement of supporting machinery sealing, for nearly all FGD engineering, mostly have following several features to the requirement of absorption tower recycle pump:
(1) the general weight concentration of lime stone slurry is limestone, the gypsum of 10% ~ 20%, and pH is 4 ~ 6, and chloride ion content is 20000 ~ 25000 × 10-6, therefore, and should be wear-resistant corrosion-resistant again to the flow passage components of pump and mechanical seal requirement.
(2) slurry temperature of transport pump is higher, is rich in steam bubble, containing a large amount of solid particle, has very high requirement to the cavitation performance of pump and mechanical seal.
(3) uninterrupted stream time is greater than 8000h, therefore very high to the reliability requirement of pump.
(4) require that pump has higher working efficiency, reliable and stable operation, mechanical seal does not need cooling water and sparge water, reduces operating cost as far as possible.
For reducing abrasive media to the wearing and tearing of axle sleeve, usual way is the material that axle sleeve adopts abrasive resistant, the stainless steel of such as 1.4462, resistance to wears and erosion-resisting effect because 1.4462 this materials have, so must be used in the metallic material of gypsum slurries sealing by extensive.Although this material also can be worn and torn by slurries, the speed of wearing and tearing is more much lower than 316SS.
But because this material price is more expensive, and axle sleeve structure is special, one large one small, if adopt entirety to do, waste of material is also more serious; The more difficult processing of 1.4462 material, overall processing cost is high.
Therefore, the mechanical seal structure that how economical rationality improves absorption tower recycle pump is manufacturer's all urgent problems of each recycle pump.
Summary of the invention
In order to solve above-mentioned technical problem, the purpose of this utility model is to provide a kind of compact structure, and processing cost is low, good sealing effect, the axle sleeve of the employing bolt structure that wear-resistant corrosion resistant degree is high.
In order to realize above-mentioned object, the utility model have employed following technological scheme:
A kind of axle sleeve adopting bolt structure, comprise external axle sleeve, rotating ring, stationary ring, internal gland, outer press cover, lining and internal axle sleeve, described internal axle sleeve and external axle sleeve are by the first screw fastening, and be provided with the first packing ring between the first screw and internal axle sleeve, the 2nd O type circle is provided with between described internal axle sleeve and external axle sleeve, the two ends of the inwall of described external axle sleeve are also blocked respectively the first axle sleeve O type circle and the second axle sleeve O type circle, described internal axle sleeve is arranged with driving shrink-ring away from one end of external axle sleeve, shrink-ring is driven to be arranged with the base plate and cover plate that are connected by lock bolt outward successively, the lower end of described base plate is arranged with positioning block, described outer press cover is fixed on the below of positioning block by positioning block screw, and card has lining between outer press cover and positioning block, and lining is fixed by lining screw and outer press cover, described rotating ring comprises rotating ring joint and rotating ring main body, rotating ring joint is arranged in the groove of external axle sleeve, and block between rotating ring joint and external axle sleeve and have rotating ring O type circle, described rotating ring main body and the stationary ring be arranged on stationary seat offset, stationary seat is by being fixed on outer press cover lower end with the spring of spring washer, described internal gland is arranged on rotating ring outside, and fixed by gland screw with outer press cover, the 4th O type circle is provided with between described internal gland and outer press cover, the upper end card of described internal gland has screw plug, the outer wall of described internal gland is provided with the 3rd O type circle, flushing hole O type circle is also provided with between described internal gland and outer press cover, stationary ring O type circle is provided with between described internal gland and rotating ring.
Compared with prior art, the beneficial effects of the utility model are: axle sleeve of the present utility model is divided into external axle sleeve and internal axle sleeve two-part, and adopt screw to connect, be convenient to the material selecting exterior and interior axle sleeves by demand, namely the stainless steel of 1.4462 is adopted with the position of slurry contact, other position adopts common stainless steel, such as 316SS material, be conducive to like this reducing cost, and after the utility model uses a period of time, only the abrading section of replacing and slurry liquid contacts, does not need to change whole axle sleeve, saves maintenance cost further.
Additionally by multiple attachment screw, two parts are linked together the structure formed a whole, and O type is set at multiple connection part encloses seal action, significant sealing affection.The utility model mentality of designing is tangible, improves production up-to-standard rate, and axle sleeve maintenance cost reduces (safeguarding that a cost is reduced to 3500 yuan from 8200 yuan).
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is made a detailed explanation.
A kind of axle sleeve adopting bolt structure as shown in Figure 1, comprise external axle sleeve 2, rotating ring, stationary ring, internal gland 4, outer press cover 8, lining 9 and internal axle sleeve 27, described internal axle sleeve 27 is fastening by the first screw 25 with external axle sleeve 2, and be provided with the first packing ring 26 between the first screw 25 and internal axle sleeve 27, the 2nd O type circle 28 is provided with between described internal axle sleeve 27 and external axle sleeve 2, the two ends of the inwall of described external axle sleeve 2 are also blocked respectively the first axle sleeve O type circle 1 and the second axle sleeve O type circle 18, described internal axle sleeve 27 is arranged with driving shrink-ring 13 away from one end of external axle sleeve 2, drive outside shrink-ring 13 and be arranged with the base plate 12 and cover plate 14 that are connected by lock bolt 15 successively, the lower end of described base plate 12 is arranged with positioning block 17, described outer press cover 8 is fixed on the below of positioning block 17 by positioning block screw 16, and block between outer press cover 8 and positioning block 17 and have lining 9, and lining 9 is fixed by lining screw 11 and outer press cover 8, described rotating ring comprises rotating ring joint 29 and rotating ring main body 24, rotating ring joint 29 is arranged in the groove of external axle sleeve 2, and block between rotating ring joint 29 and external axle sleeve 2 and have rotating ring O type circle 3, described rotating ring main body 24 offsets with the stationary ring be arranged on stationary seat 7, stationary seat 7 is fixed on outer press cover 8 lower end by the spring 21 with spring washer 19, described internal gland 4 is arranged on rotating ring outside, and fixed by gland screw 20 with outer press cover 8, the 4th O type circle 22 is provided with between described internal gland 4 and outer press cover 8, the upper end card of described internal gland 4 has screw plug 10, the outer wall of described internal gland 4 is provided with the 3rd O type circle 23, flushing hole O type circle 6 is also provided with between described internal gland 4 and outer press cover 8, stationary ring O type circle 5 is provided with between described internal gland 4 and rotating ring.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. one kind adopts the axle sleeve of bolt structure, it is characterized in that: comprise external axle sleeve (2), rotating ring, stationary ring, internal gland (4), outer press cover (8), lining (9) and internal axle sleeve (27), described internal axle sleeve (27) is fastening by the first screw (25) with external axle sleeve (2), and be provided with the first packing ring (26) between the first screw (25) and internal axle sleeve (27), the 2nd O type circle (28) is provided with between described internal axle sleeve (27) and external axle sleeve (2), the two ends of the inwall of described external axle sleeve (2) are also blocked respectively the first axle sleeve O type circle (1) and the second axle sleeve O type circle (18), described internal axle sleeve (27) is arranged with driving shrink-ring (13) away from one end of external axle sleeve (2), shrink-ring (13) is driven to be arranged with the base plate (12) and cover plate (14) that are connected by lock bolt (15) outward successively, the lower end of described base plate (12) is arranged with positioning block (17), described outer press cover (8) is fixed on the below of positioning block (17) by positioning block screw (16), and block between outer press cover (8) and positioning block (17) and have lining (9), and lining (9) is fixed by lining screw (11) and outer press cover (8), described rotating ring comprises rotating ring joint (29) and rotating ring main body (24), rotating ring joint (29) is arranged in the groove of external axle sleeve (2), and block between rotating ring joint (29) and external axle sleeve (2) and have rotating ring O type circle (3), described rotating ring main body (24) and the stationary ring be arranged on stationary seat (7) offset, stationary seat (7) is fixed on outer press cover (8) lower end by the spring (21) with spring washer (19), described internal gland (4) is arranged on rotating ring outside, and fixed by gland screw (20) with outer press cover (8), the 4th O type circle (22) is provided with between described internal gland (4) and outer press cover (8), the upper end card of described internal gland (4) has screw plug (10), the outer wall of described internal gland (4) is provided with the 3rd O type circle (23), flushing hole O type circle (6) is also provided with between described internal gland (4) and outer press cover (8), stationary ring O type circle (5) is provided with between described internal gland (4) and rotating ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420653463.3U CN204371750U (en) | 2014-11-04 | 2014-11-04 | A kind of axle sleeve adopting bolt structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420653463.3U CN204371750U (en) | 2014-11-04 | 2014-11-04 | A kind of axle sleeve adopting bolt structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371750U true CN204371750U (en) | 2015-06-03 |
Family
ID=53327974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420653463.3U Expired - Fee Related CN204371750U (en) | 2014-11-04 | 2014-11-04 | A kind of axle sleeve adopting bolt structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371750U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL424216A1 (en) * | 2018-01-08 | 2019-07-15 | Rybiński Lech Pphu Rybiński Spółka Cywilna | Self-lubricating mechanical sealing of rotary shafts |
-
2014
- 2014-11-04 CN CN201420653463.3U patent/CN204371750U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL424216A1 (en) * | 2018-01-08 | 2019-07-15 | Rybiński Lech Pphu Rybiński Spółka Cywilna | Self-lubricating mechanical sealing of rotary shafts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315104 Zhejiang Province, Ningbo city Yinzhou District Venture Center Valley Road (East) No. 366 Patentee after: Yi (Ningbo) Co., Ltd., seal Address before: 315104 Zhejiang Province, Ningbo city Yinzhou District Venture Center Valley Road (East) No. 366 Patentee before: Ningbo AESSEAL Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20201104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |