CN204312360U - The dynamic seal structure of pulp pump - Google Patents
The dynamic seal structure of pulp pump Download PDFInfo
- Publication number
- CN204312360U CN204312360U CN201420604832.XU CN201420604832U CN204312360U CN 204312360 U CN204312360 U CN 204312360U CN 201420604832 U CN201420604832 U CN 201420604832U CN 204312360 U CN204312360 U CN 204312360U
- Authority
- CN
- China
- Prior art keywords
- pump cover
- dynamic seal
- axle
- axle sleeve
- packing
- 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
Links
- 238000012856 packing Methods 0.000 claims abstract description 20
- 210000004907 gland Anatomy 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010019233 Headaches Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The dynamic seal structure of pulp pump, relates to a kind of sealing configuration of pump.Comprise pump cover, in the middle of pump cover, cross-under has axle, the front end of axle is connected with impeller, place axle sleeve between described pump cover and axle, it is characterized in that: the axle sleeve between impeller and pump cover has placed wearing plate after dynamic seal (packing), be connected by the first bolt between wearing plate with pump cover after dynamic seal (packing), cavity is left between wearing plate and pump cover after dynamic seal (packing), axle sleeve in cavity is fixed with sub-propeller, and the rear end of described pump cover is provided with gland, and gland is connected by the second bolt with pump cover.The utility model has that the dynamic seal (packing) life-span is long, and maintenance cost is lower, and complex structure, failure rate is low, long service life.
Description
Technical field
The utility model relates to a kind of sealing configuration of pump, is specially a kind of dynamic seal structure of pulp pump.
Background technique
The sealability of pump is particularly important to quality of product, if its sealability is poor, then can affect working efficiency and to environment, the bad seals of pump is also the problem that users comparatively have a headache
In prior art, the sealing of pump generally adopts packing seal and mechanical seal, and these two kinds of seal form all exist complex structure, the defects such as rate of fault is high, and working life is short.
Model utility content
The purpose of this utility model is to provide a kind of dynamic seal structure of pulp pump, mainly solve packing seal existing for prior art, mechanical seal life-span shorter, use, the problem such as maintenance cost is higher.
The technological scheme realizing above-mentioned purpose is: the dynamic seal structure of pulp pump, comprise pump cover, in the middle of pump cover, cross-under has axle, the front end of axle is connected with impeller, axle sleeve has been placed between described pump cover and axle, axle sleeve between impeller and pump cover places wearing plate after dynamic seal (packing), be connected by the first bolt between wearing plate with pump cover after dynamic seal (packing), cavity is left between wearing plate and pump cover after dynamic seal (packing), axle sleeve in cavity is fixed with sub-propeller, the rear end of described pump cover is provided with gland, and gland is connected by the second bolt with pump cover.
The middle part of above-mentioned axle is provided with step, the front end of described axle sleeve is respectively arranged with interior step and outer step, the interior step of axle sleeve front end is placed on the middle bench of axle, and after dynamic seal (packing), wearing plate is set in the outer step of axle sleeve, and sub-propeller is arranged between the outer step of axle sleeve and pump cover; The outer step that axle sleeve front end of the present utility model is arranged and interior step, not only can play the role of positioning to each parts, forms water stop ring simultaneously, play sealing effect with the middle bench of axle.
Seal ring is provided with between above-mentioned pump cover and gland.
Seal ring is provided with between above-mentioned gland and axle sleeve.
During use, the impeller that liquid enters through axle front end from liquid entering hole is discharged from liquid outlet, the cavity after simultaneously having partially liq to enter dynamic seal (packing) under the effect of impeller between wearing plate and pump cover; The utility model is provided with sub-propeller between impeller and pump cover, pushes the water entered in cavity to impeller by sub-propeller, avoids liquid and enters between pump cover and axle sleeve, realize dynamic seal (packing).
The utility model has that the dynamic seal (packing) life-span is long, and maintenance cost is lower, and complex structure, failure rate is low, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises pump cover 1, the middle cross-under of pump cover 1 has axle 2, the middle part of axle 2 is provided with step 12, the front end of axle 2 is connected with impeller 15, placed axle sleeve 3 between pump cover 1 and axle 2, the front end of axle sleeve 3 is respectively arranged with interior step 13 and outer step 14, and the interior step 13 of axle sleeve 3 front end is placed on the middle bench 12 of axle 2.
The outer step 14 of axle sleeve 3 places wearing plate 4 after dynamic seal (packing), be connected by the first bolt 5 between wearing plate 4 with pump cover 1 after dynamic seal (packing), cavity 6 is left between wearing plate 4 and pump cover 1 after dynamic seal (packing), axle sleeve 3 in cavity 6 is fixed with sub-propeller 7, sub-propeller 7 is arranged between the outer step 14 of axle sleeve 3 and pump cover 1, the rear end of pump cover 1 is provided with gland 8, gland 8 is connected by the second bolt 9 with pump cover 1, be provided with seal ring 10 between pump cover 1 and gland 8, between gland 8 and axle sleeve 3, be provided with seal ring 11.
Claims (4)
1. the dynamic seal structure of pulp pump, comprise pump cover, in the middle of pump cover, cross-under has axle, the front end of axle is connected with impeller, axle sleeve has been placed between described pump cover and axle, it is characterized in that: the axle sleeve between impeller and pump cover has placed wearing plate after dynamic seal (packing), be connected by the first bolt between wearing plate with pump cover after dynamic seal (packing), cavity is left between wearing plate and pump cover after dynamic seal (packing), axle sleeve in cavity is fixed with sub-propeller, the rear end of described pump cover is provided with gland, and gland is connected by the second bolt with pump cover.
2. the dynamic seal structure of pulp pump according to claim 1, it is characterized in that: the middle part of described axle is provided with step, the front end of described axle sleeve is respectively arranged with interior step and outer step, the interior step of axle sleeve front end is placed on the middle bench of axle, after dynamic seal (packing), wearing plate is set in the outer step of axle sleeve, and sub-propeller is arranged between the outer step of axle sleeve and pump cover.
3. the dynamic seal structure of pulp pump according to claim 1 and 2, is characterized in that: be provided with seal ring between described pump cover and gland.
4. the dynamic seal structure of pulp pump according to claim 1 and 2, is characterized in that: be provided with seal ring between gland and axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420604832.XU CN204312360U (en) | 2014-10-20 | 2014-10-20 | The dynamic seal structure of pulp pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420604832.XU CN204312360U (en) | 2014-10-20 | 2014-10-20 | The dynamic seal structure of pulp pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312360U true CN204312360U (en) | 2015-05-06 |
Family
ID=53134678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420604832.XU Expired - Fee Related CN204312360U (en) | 2014-10-20 | 2014-10-20 | The dynamic seal structure of pulp pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609759A (en) * | 2016-11-18 | 2017-05-03 | 江苏江大泵业制造有限公司 | Leak-free centrifugal pump |
-
2014
- 2014-10-20 CN CN201420604832.XU patent/CN204312360U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609759A (en) * | 2016-11-18 | 2017-05-03 | 江苏江大泵业制造有限公司 | Leak-free centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |