CN204164028U - Pollution discharge pump and shaft seal assembly thereof under water - Google Patents
Pollution discharge pump and shaft seal assembly thereof under water Download PDFInfo
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- CN204164028U CN204164028U CN201420585769.XU CN201420585769U CN204164028U CN 204164028 U CN204164028 U CN 204164028U CN 201420585769 U CN201420585769 U CN 201420585769U CN 204164028 U CN204164028 U CN 204164028U
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- seal assembly
- pollution discharge
- center reel
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Abstract
The utility model provides one pollution discharge pump and shaft seal assembly thereof under water.This shaft seal assembly comprises pump shaft Tao He center reel, wherein, on the pump shaft that pump shaft cover is sheathed on pollution discharge pump and with pump shaft drive fit, pump shaft cover inserts central shaft Pan Qieyu center reel drive fit, the sealing seat of pump shaft Tao He center reel and pollution discharge pump forms sealing configuration, and the flange of pump shaft Tao He center reel and pollution discharge pump and the impeller being installed on pump shaft end coordinate and form lower seal structure.By the way, the utility model makes pollution discharge pump have good sealing, the probability that the electric motor short circuit reducing pollution discharge pump damages, and simple and reasonable.
Description
Technical field
The utility model relates to papermaking equipment technical field, is specifically related to the envelope axle construction technical field of papermaking equipment, particularly relates to one pollution discharge pump and shaft seal assembly thereof under water.
Background technique
Pollution discharge pump (i.e. proof submersible sand discharging pump) is a kind of general class electronic product under water, is widely used in the production fields such as papermaking.To be vertical pump vertical with institute gas-distributing motor is connected and coaxial rotating for the most remarkable structure characteristic of pollution discharge pump under water, this direct connection compact structure, connect reliable, machinery driving efficiency is high, pump can be realized and effectively export.Pollution discharge pump is owing to working under water under water, and the shaft sealing therefore between vertical Pump and Electromotor requires high especially.
Current, under water pollution discharge pump generally the equipped twice mechanical sealing element of coaxially connecting and between mechanical sealing element and pump shaft charging-up lubricant oil, as shaft seal assembly.There is matching gap between the pump shaft of vertical pump and the pump housing, what produce during running carries press liquid from matching gap along the direct impulse machine Sealing of pump shaft, and this mechanical seal structure is enough to resist this impact under normal circumstances.But the vibration that the impact of sewage to the impeller of pump shaft end causes, if things go on like this very easily causes mechanical seal lost efficacy and leaked, pump shaft certainly will be caused unbalance and shake, cause electric motor short circuit to damage time serious once leak, and impact is produced and carried out smoothly.
Model utility content
In view of this, the utility model embodiment technical problem to be solved is to provide one pollution discharge pump and shaft seal assembly thereof under water, has good sealing.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: provide a kind of shaft seal assembly, comprise pump shaft Tao He center reel, wherein, on the pump shaft that pump shaft cover is sheathed on pollution discharge pump and with pump shaft drive fit, pump shaft cover inserts central shaft Pan Qieyu center reel drive fit, and the sealing seat of pump shaft Tao He center reel and pollution discharge pump forms sealing configuration, and the flange of pump shaft Tao He center reel and pollution discharge pump coordinates with the impeller being installed on pump shaft end and forms lower seal structure.
Wherein, shaft seal assembly also comprises flexible liner layer, and flexible liner layer is arranged between the reel of pump shaft Tao He center, and respectively with pump shaft Tao He center reel drive fit.
Wherein, flexible liner layer and pump shaft overlap the inwall contacted and are provided with many effluent troughs.
Wherein, flexible liner layer comprises rubber ring.
Wherein, shaft seal assembly comprises metal shaft bearing sleeve further, flexible liner layer and metal shaft bearing sleeve interference fit, metal shaft bearing sleeve and center reel drive fit.
Wherein, center reel is positioned at the part outside metal shaft bearing sleeve is solid construction.
Wherein, shaft seal assembly also comprises bolt, and center reel is provided with for the tapped through hole with Flange joint, and bolt screws in tapped through hole and realizes fixing of center reel and flange.
Wherein, shaft seal assembly comprises sealing layer of paste further, and sealing layer of paste is coated on pump shaft cover with on the surface of contact of pump shaft.
Wherein, the outer wall of center reel is also provided with discharge opening, between the oilysewage surface of discharge opening when pollution discharge pump blowdown and pump shaft cover.
For solving the problems of the technologies described above, another technological scheme that the utility model adopts is: provide one pollution discharge pump under water, comprise said pump shaft seal assembly.
Pass through technique scheme, the beneficial effect that the utility model embodiment produces is: the utility model embodiment coordinates sheathed pump shaft cover by tightening at pump shaft, and pump shaft is overlapped drive fit insertion center reel, make pump shaft Tao He center reel and the sealing seat of pollution discharge pump form sealing configuration, the flange of pump shaft Tao He center reel and pollution discharge pump and the impeller that is installed on pump shaft end to coordinate and form lower seal structure, thus make pollution discharge pump have good sealing, the probability that the electric motor short circuit reducing pollution discharge pump damages, and simple and reasonable.
Accompanying drawing explanation
Fig. 1 is the blowdown pump structure sectional view of the utility model preferred embodiment;
Fig. 2 is the structure sectional view of pollution discharge pump along A-A line of the utility model preferred embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, technological scheme in the utility model embodiment is clearly and completely described, obviously, embodiment described below the utility model is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the blowdown pump structure sectional view of the utility model preferred embodiment, and Fig. 2 is the structure sectional view of pollution discharge pump along A-A line of the utility model preferred embodiment.Refer to Fig. 1 and Fig. 2, the shaft seal assembly 20 of pollution discharge pump 10 comprises pump shaft Tao21He center reel 22.
In the present embodiment, on the pump shaft 11 that pump shaft cover 21 is sheathed on pollution discharge pump 10 and with pump shaft 11 drive fit, pump shaft cover 21 insert center reels 22 and with center reel 22 drive fit, now pump shaft Tao21He center reel 22 form sealing configuration with the sealing seat 12 of pollution discharge pump 10, and the flange 13 of pump shaft Tao21He center reel 22 and pollution discharge pump 10 coordinates with the impeller 14 being installed on pump shaft 11 end and forms lower seal structure.
It can thus be appreciated that, to be coordinated with sealing seat 12 by pump shaft Tao21He center reel 22 and form sealing configuration, pump shaft Tao21He center reel 22 coordinates with flange 13 and impeller 14 and forms lower seal structure, thus utilize double sealing structure to make pollution discharge pump 10 have good sealing, the motor 15 reducing pollution discharge pump 10 causes the probability of Damage by Short Circuit because sewage enters, and the structure of shaft seal assembly 20 is simple, be compared to prior art and simplify mechanical sealing assembly, the difficulty of maintaining can be reduced, simultaneously pump shaft Tao21He center reel 22 is arranged so that the reasonable in design of shaft seal assembly 20 along the axis of pump shaft 11.
For realizing above-mentioned purpose of the present utility model, the concrete structure of shaft seal assembly 20 and position can be arranged according to the needs of practical application scene.Hereafter shown in composition graphs 1 and Fig. 2, the shaft seal assembly 20 of pollution discharge pump 10 is further described.
As shown in Figure 2, shaft seal assembly 20 also comprises flexible liner layer 23, and flexible liner layer 23 is arranged between pump shaft Tao21He center reel 22, and respectively with pump shaft Tao21He center reel 22 drive fit.Flexible liner layer 23 has certain elasticity, the part vibrations produced when pollution discharge pump 10 operates can either be absorbed in use, can also as sliding assembly, prevent whole shaft seal assembly 20 from producing sideslip problem when following pump shaft 11 and rotating because of unbalance, and then avoid the sealing affecting shaft seal assembly 20.
Wherein, flexible liner layer 23 and pump shaft overlap on 21 inwalls contacted and are provided with many effluent troughs 231, the quantity optimizing tank 231 is 4 ~ 20, cooling when rotating with power supply machine 15 transmission pump shaft 11 and between pump shaft Tao21He center reel 22, even if generation sewage leaks and part of contaminated water enters in effluent trough 231, then this part of contaminated water also has lubrication with the form of moisture film to pump shaft Tao21He center reel 22, thus make shaft seal assembly 20 be compared to the mechanical sealing element of prior art without the need to using lubricant oil, cost-saving.
Further, between flexible liner Ceng23Yu center reel 22, be also provided with metal shaft bearing sleeve 24, wherein flexible liner layer 23 and metal shaft bearing sleeve 24 interference fit, metal shaft bearing sleeve 24 and center reel 22 drive fit.Further, preferred center reel 22 part be positioned at outside metal shaft bearing sleeve 24 is solid construction, to reduce sewage to enter motor 15 probability through center reel 22, improves the sealing of shaft seal assembly 20, ensures waterproofing effect.
Shown in composition graphs 1 and Fig. 2, the center reel 22 being fixed with pump shaft cover 21 fixes with the flange 13 of pollution discharge pump 10, the preferred means of fixation of the present embodiment is screw locking, specifically, center reel 22 is provided with four tapped through holes 221 for being connected with flange 13, shaft seal assembly 20 also comprises the bolt (not shown) of four corresponding models, and bolt screws in tapped through hole 221 and realizes the fixing of center reel 22 and flange 13 with this.
In addition, as shown in Figure 1, the outer wall of center reel 22 is also provided with discharge opening 222, more than oilysewage surface when discharge opening 222 is positioned at pollution discharge pump 10 blowdown be positioned at below pump shaft cover 21, for enter at sewage center reel 22 and pump shaft overlap 21 combine inner space time effluent, avoid the seal failure of shaft seal assembly 20, guarantee waterproofing effect.
For improving the waterproofing effect of shaft seal assembly 20 further, the present embodiment is also preferred is coated with sealing layer of paste on pump shaft cover 21 with the surface of contact of pump shaft 11, certain sealing layer of paste also can be coated on the surface of contact between other each elements, and such as pump shaft cover 21 and flexible liner layer 23, flexible liner layer 23 are with on any surface of contact between the two in metal shaft bearing sleeve 24 and metal shaft bearing sleeve 24 and center reel 22.
It should be noted that, shaft seal assembly 20 shown in Fig. 1 and Fig. 2 is only one of them embodiment of the present utility model, wherein the position of each structural element, quantity, direction and means of fixation can be carried out other according to actual needs and arranged, such as: flexible liner layer 23 can be rubber ring, also can be the elastic ring of other any resistant materials such as polyester circle, polyurethane circle; Metal shaft bearing sleeve 24 can be copper band, also can be corrosion resistant single metalloid circle or the multiple types metal alloy circles such as nickel circle, titanium circle, aluminium circle, stainless steel coil; The quantity of bolt (tapped through hole 221) can also be 3 ~ 12, is not limited to four shown in Fig. 2; Discharge opening 222 can be symmetrically arranged two, also asymmetric or only can arrange one; The sealing seat 12 of pollution discharge pump 10 also can arrange shaft seal assembly 20 with the junction point of pump shaft 11.
The utility model embodiment also provides one pollution discharge pump under water, this under water pollution discharge pump not only comprise into other shell constructions such as coupling 16, inlet strainer 17, outlet pipes 18, also comprise the pollution discharge pump 10 being provided with said pump shaft seal assembly 20, therefore there is the beneficial effect identical with it.
In sum, the utility model embodiment coordinates sheathed pump shaft cover by tightening at pump shaft, and pump shaft is overlapped drive fit insertion center reel, make pump shaft Tao He center reel and the sealing seat of pollution discharge pump form sealing configuration, the flange of pump shaft Tao He center reel and pollution discharge pump and the impeller that is installed on pump shaft end to coordinate and form lower seal structure, thus make pollution discharge pump have good sealing, the probability that the electric motor short circuit reducing pollution discharge pump damages, and simple and reasonable.
Again illustrate; the foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; such as the be combineding with each other of technical characteristics between each embodiment; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a shaft seal assembly, it is characterized in that, described shaft seal assembly comprises pump shaft Tao He center reel, wherein, on the pump shaft that described pump shaft cover is sheathed on pollution discharge pump and with described pump shaft drive fit, described pump shaft cover insert described center reel and with described center reel drive fit, the sealing seat of described pump shaft cover and described center reel and described pollution discharge pump forms sealing configuration, and described pump shaft overlaps and the flange of described center reel and described pollution discharge pump coordinates with the impeller being installed on described pump shaft end and forms lower seal structure.
2. shaft seal assembly according to claim 1, it is characterized in that, described shaft seal assembly also comprises flexible liner layer, and described flexible liner layer is arranged between described pump shaft cover and described center reel, and overlaps with described pump shaft respectively and described center reel drive fit.
3. shaft seal assembly according to claim 2, is characterized in that, described flexible liner layer and described pump shaft overlap the inwall contacted and be provided with many effluent troughs.
4. the shaft seal assembly according to Claims 2 or 3, is characterized in that, described flexible liner layer comprises rubber ring.
5. shaft seal assembly according to claim 2, is characterized in that, described shaft seal assembly comprises metal shaft bearing sleeve further, described flexible liner layer and described metal shaft bearing sleeve interference fit, described metal shaft bearing sleeve and described center reel drive fit.
6. shaft seal assembly according to claim 5, is characterized in that, the reel part be positioned at outside described metal shaft bearing sleeve in described center is solid construction.
7. shaft seal assembly according to claim 1, it is characterized in that, described shaft seal assembly also comprises bolt, described center reel is provided with the tapped through hole for the Flange joint with described pollution discharge pump, and described bolt screws in described tapped through hole and realizes the fixing of described center reel and described flange.
8. shaft seal assembly according to claim 1, is characterized in that, described shaft seal assembly comprises sealing layer of paste further, and described sealing layer of paste is coated on described pump shaft cover with on the surface of contact of described pump shaft.
9. shaft seal assembly according to claim 1, is characterized in that, the outer wall of described center reel is also provided with discharge opening, between the oilysewage surface of described discharge opening when described pollution discharge pump blowdown and described pump shaft cover.
10. a pollution discharge pump under water, it is characterized in that, described pollution discharge pump under water comprises the shaft seal assembly described in the claims 1 ~ 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585769.XU CN204164028U (en) | 2014-10-10 | 2014-10-10 | Pollution discharge pump and shaft seal assembly thereof under water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585769.XU CN204164028U (en) | 2014-10-10 | 2014-10-10 | Pollution discharge pump and shaft seal assembly thereof under water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204164028U true CN204164028U (en) | 2015-02-18 |
Family
ID=52537720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420585769.XU Active CN204164028U (en) | 2014-10-10 | 2014-10-10 | Pollution discharge pump and shaft seal assembly thereof under water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204164028U (en) |
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2014
- 2014-10-10 CN CN201420585769.XU patent/CN204164028U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |