CN204851757U - Clear water centrifugal pump - Google Patents
Clear water centrifugal pump Download PDFInfo
- Publication number
- CN204851757U CN204851757U CN201520575017.XU CN201520575017U CN204851757U CN 204851757 U CN204851757 U CN 204851757U CN 201520575017 U CN201520575017 U CN 201520575017U CN 204851757 U CN204851757 U CN 204851757U
- Authority
- CN
- China
- Prior art keywords
- pump
- gland
- clear water
- filler
- water centrifugal
- 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 discloses a clear water centrifugal pump aims at providing a clear water centrifugal pump who has good sealed effect, and its technical scheme main points are: including the pump body, connect in the pump cover of the pump body, pump shaft be equipped with the through hole on the pump cover, the pump shaft wear to establish with the through hole in, be equipped with sealing mechanism on the pump cover, sealing mechanism just can dismantle the gland of fixed connection in the pump cover including lieing in filler between pump shaft lateral wall and the through hole pore wall, be used for compressing tightly to pack, packing and pack into after the packing cavity in the inclined plane that one side that gland be close to to pack set up for the slope, makes the axial compression to it through gland, and it has certain plasticity to pack, and the inclined plane produces certain radial pressure during to plastic material compress, increases sealed effect.
Description
Technical field
The utility model relates to a kind of clear water centrifugal pump, and more particularly, it relates to a kind of clear water centrifugal pump with excellent sealing effect.
Background technique
Clear water centrifugal pump be for conveying clear water and physicochemical properties be similar to other liquid of clear water a kind of pump, be applicable to industry and the cold-warm water such as urban water supply and sewerage, tall building supercharging water feeding, gardens sprinkling irrigation, fire fighting pressurization, long-distance sand transport, HVAC refrigeration cycle, field irrigation, bathroom is circularly-supercharged and coordinative composition of equipments.
Clear water centrifugal pump system is according to the performance of international standard ISO2858 defined and size design, primarily of the pump housing, pump cover, impeller, pump shaft, seal ring, the composition such as axle sleeve and sprung parts, the pump housing of clear water centrifugal pump and pump cover portion are from wheel backface subdivision, namely usually said rear opening structural type, the pump housing and pump cover form the working room of pump, pump shaft is arranged in the penetration hole of pump cover, impeller, pump shaft and rolling bearing etc. are the rotor of composition pump, sprung parts supports the rotor portion of pump, wear and tear to prevent pump shaft, usually between the penetration hole and pump shaft of pump cover, axle sleeve is set up, due to can gap be there is between axle sleeve and the penetration hole hole wall of pump cover, need to be sealed by sealing mechanism, prevent air inlet or leak in a large number, sealing mechanism generally comprises Gland and filler, usually also packing ring is had, the material of filler generally has packing, felt etc., filler loads outside pump shaft and between the hole wall of penetration hole, need to make axial compression through Gland to it, when axle and filler have relative movement, due to the plasticity of filler, its generation radial force and axle close contact is made to realize effective sealing.The axial seal of clear water centrifugal pump is very important.
At present, the filler of the clear water centrifugal pump on market in use in its axial sealing mechanism easily loosens, and the compression effect of Gland to filler is undesirable, and Gland itself also easily loosens, thus causes sealing effect to decline.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of clear water centrifugal pump with excellent sealing effect.
For achieving the above object, the utility model provides following technological scheme: a kind of clear water centrifugal pump, comprise the pump housing, be connected to the pump cover of the pump housing, described pump cover is provided with the penetration hole worn for pump shaft, described pump cover is provided with sealing mechanism, described sealing mechanism comprises filler between pump shaft outer side wall and penetration hole hole wall, for compressing filler and being detachably fixedly connected on the Gland of pump cover, it is characterized in that: described Gland is the plane of inclination be obliquely installed near the side of filler.
Preferably, described Gland is ring, and described plane of inclination tilts to the central axial direction of Gland.
Preferably, the central axis of the side that contacts with pump shaft of described Gland and pump shaft is provided with angle a.
Preferably, described angle a is 8 ° ~ 15 °.
Preferably, described filler friction top is fastened by bolts on pump cover.
Compared with prior art, the beneficial effects of the utility model are: described Gland is the plane of inclination be obliquely installed near the side of filler, filler loads outside pump shaft and between the hole wall of penetration hole, through Gland, axial compression is done to it, filler has certain plasticity, when adopting inclined-plane to compress plastic material, because the surface of contact of axis is little, the pressure axially produced for plane is large, compresses better effects if; Inclined-plane can increase the overall area of contact between filler and Gland simultaneously, makes it produce certain radial pressure, increases sealing effect.
Accompanying drawing explanation
Fig. 1 is the erection drawing of the utility model clear water centrifugal pump embodiment;
Fig. 2 is the partial enlarged drawing at C place in Fig. 1;
Fig. 3 is the schematic diagram of the Gland of the utility model clear water centrifugal pump embodiment.
Reference character: 1, the pump housing; 2, pump cover; 3, impeller; 4, pump shaft; 5, sealing mechanism; 51, filler; 52, Gland; 53, stud; 521, plane of inclination; 6, space; 7, axle sleeve; 8, sprung parts; 9, penetration hole; 10, central axis.
Embodiment
For making the object of the utility model embodiment, technological scheme and advantage clearly, below with reference to Fig. 1 to Fig. 3 the utility model wheel hub Special Purpose Machine for Processing embodiment being done and describing clearly and completely further.Obviously, described embodiment is section Example of the present utility model, instead of whole embodiments.Based on described embodiment of the present utility model, the every other embodiment that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, belongs to the scope of the utility model protection.
A kind of clear water centrifugal pump, comprise the pump housing 1, pump cover 2, pump shaft 4, impeller 3, sealing mechanism 5 and sprung parts 8, the present embodiment middle pump body 1 and pump cover 2 form the working room of centrifugal pump, impeller 3, the rolling bearing of pump shaft 4 and fixing pump shaft 4 forms the rotor portion of pump, sprung parts 8 is for supporting the rotor portion of pump, pump shaft 4 is arranged in the penetration hole 9 of pump cover 2, gap is there is between penetration hole 9 and pump shaft 4, can also overlap between pump shaft 4 and pump cover 2 and have axle sleeve 7, axle sleeve 7 can prevent pump shaft 4 excessive wear, sealing mechanism 5 for seal pump shaft 4 and pump cover 2 penetration hole 9 hole wall between gap, described sealing mechanism 5 comprises filler 51 and Gland 52, described Gland 52 is provided with the plane of inclination 521 for compressing filler 51, as shown in Gland 52 schematic diagram in accompanying drawing 3, one end that Gland 52 contacts with filler 51 and cavity form an inverted round platform, round platform comprises axle, bus, bottom surface and side, described plane of inclination 521 is just the side of round platform, after shown filler 51 loads the gap between namely described penetration hole 9 hole wall of packing cavity and pump shaft 4 sidewall, through Gland 52, axial compression is done to it, filler 51 has certain plasticity, when adopting inclined-plane to compress plastic material, because the surface of contact of axis is little, the pressure axially produced for plane is large, compress better effects if, inclined-plane can increase the overall area of contact between filler 51 and Gland 52 simultaneously, makes it produce certain radial pressure, increases sealing effect.
Described Gland 52 is ring, described plane of inclination 521 tilts to central axis 10 direction of Gland 52, namely shown in accompanying drawing 2, after filler 51 loads packing cavity, through Gland 52, axial compression is done to it, the plane of inclination 521 tilted to central axis 10 direction of Gland 52 can increase it to the radial force of filler 51 to axle center when pump shaft 4 moves, thus make filler 51 and pump shaft 4 more close contact, the sealing effect of reinforcing filler 51, plane of inclination 521 and central axis 10 angle b are preferably 70 ° ~ 80 °, described angle b is equal to the gradient of above-mentioned frustum cone side, angle b differences in angle is crossed conference and is just equivalent to perpendicular to pump shaft 4, lose the effect on inclined-plane, angle too small, will at a point of contact excessive compression filler 51, filler 51 skewness is made to destroy sealing effect.
The central axis 10 of the side that described Gland 52 contacts with pump shaft 4 and pump shaft 4 is provided with angle a, in fact angle a shown in accompanying drawing 2 is exactly the angle a between the side that contacts with pump shaft 4 of described Gland 52 and the central axis 10 of pump shaft 4, described angle a makes to there is certain space between the side of Gland 52 and pump shaft 4, not only can reduce the frictional force produced when pump shaft 4 rotates, reduce the degree of wear of pump shaft 4, the effect of heat radiation can also be played.
Described angle a is 8 ° ~ 15 °, and angle a is too small, and the space that Gland 52 and pump shaft 4 are formed is just too little, and do not have the effect of heat radiation, angle a is excessive, can cause Gland 52 when fastening, produce non axial power and make its bad stability.
Described Gland 52 is fastened on pump cover 2 by stud 53, general Gland 52 is tightened on pump cover 2 by self frictional force or the screw thread of self, reach the effect compressing filler 51, when pump shaft 4 rotates, can produce certain axial force makes Gland 52 loosen, compress deleterious, adopt the fixing Gland 52 of can avoiding of stud 53 to loosen, ensure good compression and sealing effect.
The above is only exemplary embodiment of the present utility model, but not for limiting protection domain of the present utility model, protection domain of the present utility model is determined by appended claim.
Claims (5)
1. a clear water centrifugal pump, comprise the pump housing, be connected to the pump cover of the pump housing, described pump cover is provided with the penetration hole worn for pump shaft, described pump cover is provided with sealing mechanism, described sealing mechanism comprises filler between pump shaft outer side wall and penetration hole hole wall, for compressing filler and being detachably fixedly connected on the Gland of pump cover, it is characterized in that: described Gland is the plane of inclination be obliquely installed near the side of filler.
2. clear water centrifugal pump according to claim 1, is characterized in that: described Gland is ring, and described plane of inclination tilts to the central axial direction of Gland.
3. clear water centrifugal pump according to claim 1, is characterized in that: the central axis of the side that described Gland contacts with pump shaft and pump shaft is provided with angle a.
4. clear water centrifugal pump according to claim 3, is characterized in that: described angle a is 8 ° ~ 15 °.
5. clear water centrifugal pump according to claim 1, is characterized in that: described filler friction top is fastened by bolts on pump cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520575017.XU CN204851757U (en) | 2015-08-03 | 2015-08-03 | Clear water centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520575017.XU CN204851757U (en) | 2015-08-03 | 2015-08-03 | Clear water centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204851757U true CN204851757U (en) | 2015-12-09 |
Family
ID=54742311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520575017.XU Expired - Fee Related CN204851757U (en) | 2015-08-03 | 2015-08-03 | Clear water centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204851757U (en) |
-
2015
- 2015-08-03 CN CN201520575017.XU patent/CN204851757U/en not_active Expired - Fee Related
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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: 20151209 Termination date: 20210803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |