CN202056087U - 3PN (nominal pressure) slurry pump bearing box sealing device - Google Patents
3PN (nominal pressure) slurry pump bearing box sealing device Download PDFInfo
- Publication number
- CN202056087U CN202056087U CN2011200775172U CN201120077517U CN202056087U CN 202056087 U CN202056087 U CN 202056087U CN 2011200775172 U CN2011200775172 U CN 2011200775172U CN 201120077517 U CN201120077517 U CN 201120077517U CN 202056087 U CN202056087 U CN 202056087U
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- China
- Prior art keywords
- slurry pump
- bearing box
- fixed end
- sealing device
- packing
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- Expired - Fee Related
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- Sealing Devices (AREA)
Abstract
The utility model relates to a 3PN (nominal pressure) slurry pump bearing box sealing device, which comprises a bearing box. A spindle is arranged in the bearing box through a bearing; the upper end of the bearing box positioned outside the spindle is provided with a packing sealing device; the packing sealing device comprises a fixed end fixedly connected with the bearing box; sealing packing is arranged between the fixed end and the spindle; and a gland is arranged at the upper end of the fixed end. The 3PN slurry pump bearing box sealing device is simple in structure, the 3PN slurry pump bearing box has a waterproof (slurry-proof) function by modifying a slurry pump sealing device, the height of a slurry pump no longer needs to be adjusted along with ascent or descent of slurry level, the labor intensity of staff adjusting the height of the slurry pump through a hand pulling block is reduced, and the failure rate of slurry pump equipment on a construction site is reduced.
Description
Technical field
The utility model relates to a kind of seal arrangement, relates in particular to a kind of 3PN slurry pump Seal in Bearing Box device.
Background technique
Slurry pump is the conventional machinery in the foundation basic construction process, and its slurry conveyed or make mud circulation in the pile foundation pore forming process plays effects such as retaining wall, cooling, scarfing cinder.3PN type slurry pump is to use comparatively general a kind of slurry pump in the construction, and it sucks slurries in the spiral case from mud pit by the high speed rotating of turbine, by the centrifugal action of turbine, the mud that sucks is thrown away, in mud tube is sent into the hole.Thereby, have effect height, easy and simple to handle, advantage such as flow is big.
The 1 general employing vertical installation (as Fig. 1) of 3PN type slurry pump is supported by tripod 2, utilizes chain block 3 to be suspended on the mud pit 4.Because in the work progress, the liquid level 5 of mud pit 4 changes with the variation of depth of pore forming, therefore, need operator often to adjust the height of slurry pump 1 by chain block 3, make the spiral case 6 of inspiration slurry pump be in the mud liquid level below 5 always.Because 3PN slurry pump bottom end bearing case 7 commonly used adopts outside framework oil seal to seal, when liquid level 5 goes up, under running up situation, equipment can not play good seal action to mud, if this moment, operator did not in time adjust the height of slurry pump 1, mud face 5 did not have the lower end of bearing housing 7, mud 8 can be invaded bearing housing 7 rapidly, causes bearing 9 to damage, and makes slurry pump 1 to run well.
The model utility content
The utility model is in order to overcome the deficiencies in the prior art, and a kind of 3PN slurry pump Seal in Bearing Box device that provides, by repacking to the slurry pump seal arrangement, make 3PN slurry pump bearing housing possess waterproof (mud) function, the slurry pump height is unnecessary to be adjusted with the lifting of mud liquid level again, reduced the labor intensity of personnel, reduced the rate of fault of job site mud pump equipment by chain block adjustment slurry pump height.
The technical solution adopted in the utility model:
It comprises bearing housing, be provided with main shaft by bearing in the bearing housing, be positioned at the main shaft outside in described bearing housing upper end and be provided with the packing filling seal arrangement, described packing filling seal arrangement comprises fixed end, fixed end and bearing housing are affixed, be provided with sealed packing between fixed end and the main shaft, the fixed end upper end is provided with gland.
Above-mentioned fixed end is provided with oil hole, and oil hole communicates with sealed packing.
Affixed between above-mentioned fixed end and the bearing housing by bolt.
The technique effect that the utility model is obtained:
1, the utility model is simple in structure, by repacking to the slurry pump seal arrangement, make 3PN slurry pump bearing housing possess waterproof (mud) function, the slurry pump height is unnecessary to be adjusted with the lifting of mud liquid level again, reduced the labor intensity of personnel, reduced the rate of fault of job site mud pump equipment by chain block adjustment slurry pump height.
Description of drawings
Fig. 1 is the construction drawing of prior art;
Fig. 2 is a structural representation of the present utility model.
Wherein, 1-3PN slurry pump, 2-tripod, 3-chain block, 4-mud pit, 5-liquid level, 6-spiral case, 7-bearing housing, 8-mud, 9-bearing, 10-fixed end, 11-gland, 12-sealed packing, 13-main shaft, 14-oil hole.
Embodiment
Below in conjunction with accompanying drawing mode of execution of the present utility model is described further.
Referring to Fig. 2, a kind of 3PN slurry pump Seal in Bearing Box device, it comprises bearing housing 7, be provided with main shaft 13 by bearing 9 in the bearing housing, described bearing housing upper end is positioned at the main shaft outside and is provided with the packing filling seal arrangement, and described packing filling seal arrangement comprises fixed end 10, and is affixed by bolt between fixed end and the bearing housing, be provided with sealed packing 12 between fixed end and the main shaft, the fixed end upper end is provided with gland 11.Described fixed end is provided with oil hole 14, and oil hole communicates with sealed packing, can select butter for use.
The utility model improves the sealing means of slurry pump bearing housing, has installed a cover packing filling seal arrangement additional, and good effect has been played in the sealing of slurries.This device is formed (see figure 2) by several parts such as fixed end 10, gland 11, packings 12, fixed end 10 is fixed with bearing housing 7 usefulness bolts, packing 12 is wrapped on the slurry pump main shaft 13, be positioned at the packing cavity of fixed end 10, gland 11 connects with fixed end 10 by bolt, and the seam of gland compresses packing 12 in the bolt rundown process.Make that slurry pump main shaft 13 both can high speed rotating, again mud 8 is played buffer action.Fixed end is provided with grease nipple 14, can refuel to packing, avoids the packing drying can not play sealing effect.
Sealed packing 12 is packed into after the packing cavity, bolt through gland 11 is made axial compression to it, when producing high-speed motion between slurry pump main shaft 13 and the sealed packing 12, owing to compress the plasticity of back sealed packing 12,12 pairs of main shafts of sealed packing 13 produce radial pressure, and sealed packing 12 is closely contacted with main shaft 13.Simultaneously, the oiling agent of dipping is extruded in the sealed packing 12, forms oil film between surface of contact.Because sealed packing and main shaft contact condition are not uniform especially, boundary lubrication condition just appears in the contact position.And the contact position does not form little oil groove, and irregular labyrinth is formed with the non-contact position in the contact position, plays a part to stop mud liquid stream to pass through.In installation process, keep good lubricated and suitable the compressing of sealed packing.If insufficient lubrication, or press to such an extent that tension all can make oil film interrupt, cause between sealed packing filler and the main shaft dry friction to occur, cause excessively heated axle at last and heavy wear occurs.Therefore, often need to the sealed packing filler compress degree adjustment so that after the oiling agent in the sealed packing runs off in operation a period of time, extrude some oiling agents again, the compensation sealing packing filling is lax because of the impacting force that Volume Changes caused simultaneously.In addition, in order to keep lubricated butter liquid film and the frictional heat of taking away in the slurry pump running, it also is necessary having a mind to allow sealed packing filler place that small leakage is arranged.
Protection domain of the present utility model is not limited to the above embodiments, and obviously, those skilled in the art can carry out various changes and distortion and not break away from scope and spirit of the present utility model the utility model.If these changes and distortion belong in the scope of the utility model claim and equivalent technologies thereof, intention then of the present utility model also comprises these changes and is out of shape interior.
Claims (3)
1. 3PN slurry pump Seal in Bearing Box device, it comprises bearing housing (7), be provided with main shaft (13) by bearing (9) in the bearing housing, it is characterized in that: described bearing housing upper end is positioned at the main shaft outside and is provided with the packing filling seal arrangement, described packing filling seal arrangement comprises fixed end (10), fixed end and bearing housing are affixed, are provided with sealed packing (12) between fixed end and the main shaft, and the fixed end upper end is provided with gland (11).
2. 3PN slurry pump Seal in Bearing Box device according to claim 1, it is characterized in that: described fixed end is provided with oil hole (14), and oil hole communicates with sealed packing.
3. 3PN slurry pump Seal in Bearing Box device according to claim 1 and 2 is characterized in that: affixed by bolt between described fixed end and the bearing housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200775172U CN202056087U (en) | 2011-03-23 | 2011-03-23 | 3PN (nominal pressure) slurry pump bearing box sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200775172U CN202056087U (en) | 2011-03-23 | 2011-03-23 | 3PN (nominal pressure) slurry pump bearing box sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202056087U true CN202056087U (en) | 2011-11-30 |
Family
ID=45016058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200775172U Expired - Fee Related CN202056087U (en) | 2011-03-23 | 2011-03-23 | 3PN (nominal pressure) slurry pump bearing box sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202056087U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091326A (en) * | 2017-05-05 | 2017-08-25 | 嘉兴石化有限公司 | A kind of belt mud dewatering equipment roller bearing sealing structure |
-
2011
- 2011-03-23 CN CN2011200775172U patent/CN202056087U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091326A (en) * | 2017-05-05 | 2017-08-25 | 嘉兴石化有限公司 | A kind of belt mud dewatering equipment roller bearing sealing structure |
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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: 20111130 Termination date: 20180323 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |