CN204511916U - A kind of liquid sewage pump - Google Patents
A kind of liquid sewage pump Download PDFInfo
- Publication number
- CN204511916U CN204511916U CN201520129615.4U CN201520129615U CN204511916U CN 204511916 U CN204511916 U CN 204511916U CN 201520129615 U CN201520129615 U CN 201520129615U CN 204511916 U CN204511916 U CN 204511916U
- Authority
- CN
- China
- Prior art keywords
- support tube
- pump
- bearing
- liquid sewage
- spindle
- 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
- 239000010865 sewage Substances 0.000 title claims abstract description 37
- 239000007788 liquid Substances 0.000 title claims abstract description 34
- 238000005096 rolling process Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000005461 lubrication Methods 0.000 description 6
- 238000001914 filtration Methods 0.000 description 3
- 206010016275 Fear Diseases 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of liquid sewage pump, comprise the pump housing, the impeller being provided with pump shaft in the described pump housing and being positioned on described pump shaft, support tube is provided with above the described pump housing, described support tube upper end portion is provided with motor through support, spindle is provided with in described support tube, the two end part of described spindle are connected with described machine shaft and described pump shaft respectively, it is characterized in that described spindle underpart and described pump shaft joint coaxial sleeve are provided with oil sealing, described support tube bottom and middle part are respectively arranged with properties of journal bearing lubricated and middle slip bearing, described properties of journal bearing lubricated is positioned at above described oil sealing.The utility model has the advantages that, rolling bearing is substituted with sliding bearing, fed sheet of a media self is utilized to lubricate bearing, effectively avoid the close easy inefficacy of mechanical seal and then affect the weakness of rolling bearing normal service life, effectively extend the overhaul life of liquid sewage pump, ensure that the working life of liquid sewage pump.
Description
Technical field
The utility model relates to sewage pump, is specifically related to a kind of liquid sewage pump.
Background technique
Liquid sewage pump is a kind of vertical submerged pump body structure, and during work, the pump housing is dipped in water, by adopting blade wheel structure and mechanical seal structure, effectively can carry the solid matter in sewage and long fibre.
Be illustrated in figure 1 traditional liquid sewage pump structure, this liquid sewage pump, in running, because motor 1 and water pump bearing 2 are apart from longer, easily produces pump shaft flexure, thus water pump bearing 2 rapid wear.Combine because the kinematic pair of water pump adopts rolling bearing 2 to add mechanical seal 3, wherein rolling bearing 2 has and fears water-based weakness, is thus subject to the restriction of mechanical seal 3 reliability the working life of rolling bearing 2 simultaneously.Cause bearing 2 to damage due to the inefficacy of mechanical seal 3 under many occasions, thus directly affects the working life of liquid sewage pump.Especially, under the operating mode that under liquid, the degree of depth is longer, mechanical seal 3 was lost efficacy becomes the bottleneck that restriction liquid sewage pump normally runs.
Under clear water operating mode, water lubriucated bearing can be adopted to carry out alternative rolling bearing and can obtain good effect, but the medium that liquid sewage pump is carried contains more impurity, adopt the bearing of ordinary water lubricating system cannot ensure working life.
Summary of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art part, a kind of liquid sewage pump is provided, this liquid sewage pump is by replacing with sliding bearing by the rolling bearing that spindle bottom is in the past used, utilize fed sheet of a media self to lubricate sliding bearing, effectively avoid the shortcoming in mechanical seal close easy failure effect bearing working life.
The utility model object realizes being completed by following technological scheme:
A kind of liquid sewage pump, comprise the pump housing, the impeller being provided with pump shaft in the described pump housing and being positioned on described pump shaft, support tube is provided with above the described pump housing, described support tube upper end portion is provided with motor through support, spindle is provided with in described support tube, the two end part of described spindle are connected with described machine shaft and described pump shaft respectively, it is characterized in that described spindle underpart and described pump shaft joint coaxial sleeve are provided with oil sealing, described support tube bottom and middle part are respectively arranged with properties of journal bearing lubricated and middle slip bearing, and described properties of journal bearing lubricated is positioned at above described oil sealing.
Described support tube is made up of the upper support tube coaxially connected and lower support pipe, and described middle slip bearing is positioned at the joint of described upper support tube and described lower support pipe.
Described support tube upper end portion is provided with rolling bearing.
Described spindle top is provided with pair impeller with its coaxial rotation, and described support tube wall offers drainage port, and described drainage port position is corresponding with described pair of impeller location.
The utility model has the advantages that, the filtration of bearing, lubrication, cooling are combined, rolling bearing is substituted with sliding bearing, fed sheet of a media self is utilized to lubricate bearing, effectively avoid the close easy inefficacy of mechanical seal and then affect the weakness of rolling bearing normal service life, effectively extend the overhaul life of liquid sewage pump, ensure that the working life of liquid sewage pump.
Accompanying drawing explanation
Fig. 1 is the traditional liquid sewage pump structure adopting rolling bearing;
Fig. 2 is liquid sewage pump structural representation in the utility model.
Embodiment
Feature of the present utility model and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that the understanding of technician of the same trade:
Be respectively as marked 1-24 in Fig. 1-2, figure: motor 1, bearing 2, mechanical seal 3, motor 4, coupling 5, support 6, rolling bearing 7, upper support tube 8, upper joint-shaft 9, sleeve 10, bearing support 11, sliding bearing 12, lower support pipe 13, bottom spindle 14, sliding bearing 15, oil sealing 16, impeller 17, the pump housing 18, base 19, mounting disc 20, drainage port 21, pair impeller 22, outlet pipe 23, pump shaft 24.
Embodiment: the present embodiment is specifically related to a kind of liquid sewage pump, this liquid sewage pump is by changing the lubrication form of bearing, change the lubricant medium structure of lubrication water pump bearing, to reach the overhaul life extending liquid sewage pump and then the object in working life reaching increase liquid sewage pump.
As shown in Figure 2, liquid sewage pump in the present embodiment comprises the pump housing 18, and the pump housing 18 is fixedly installed on base 19, and the liquid outlet on its side wall surface is provided with outlet pipe 23, outlet pipe 23 is fixed through the liquid outlet of flange and the pump housing 18, its body through bending after straight up; There is in the pump housing 18 pump shaft 24, pump shaft 24 is provided with impeller 17, the pump housing 18 top is vertically provided with support tube, support tube is made up of the upper support tube 8 coaxially connected and lower support pipe 13, the upper end portion of support tube is provided with motor 4 through support 6, and vertically spindle is provided with in this support tube, spindle is made up of the upper joint-shaft 9 connected through sleeve 10 and bottom spindle 14, the upper end portion of upper joint-shaft 9 connects the rotating shaft coaxial rotation with motor 1 through coupling 5, and the underpart of bottom spindle 14 is connected with pump shaft 24 and coaxial rotation; Support 6 and the flange connections of support tube upper end portion are provided with outward extending mounting disc 20, and this mounting disc 20 is in order to be installed on cesspool.
As shown in Figure 2, bottom spindle 14 underpart and pump shaft 24 joint coaxial sleeve are provided with the oil sealing 16 stopping dirt; In the bottom of lower support pipe 13, bearing support is provided with sliding bearing 15, sliding bearing 15 arranges to support it with bottom spindle 14 is coaxial, and sliding bearing 15 is specifically positioned at oil sealing more than 16 position; Also be provided with sliding bearing 12 at the link position place of upper support tube 8 and lower support pipe 13 through bearing support 11, sliding bearing 12 arranges to support it with bottom spindle 14 is coaxial equally; In addition, at the top of upper support tube 8, bearing support is provided with rolling bearing 7, rolling bearing 7 arranges to support it with upper joint-shaft 9 is coaxial; Be positioned at a distance below rolling bearing 7, upper joint-shaft 9 be coaxially arranged with pair impeller 22 rotated with it, and offer drainage port 21 on the wall corresponding to the upper support tube 8 paying impeller 22 position, in order to discharge the raffinate leaking and enter motor.
As shown in Figure 2, in the present embodiment, the method for work of liquid sewage pump is as follows: during use, by mounting disc 20, support 6 and motor 4 are installed on the cesspool water surface, the pump housing 18 of pollution discharge pump stretches under water, motor 4 drives the pump housing 18 to work by spindle (i.e. upper joint-shaft 9 and bottom spindle 14), and pump shaft 24 impeller 17 rotates that sewage is discharged outlet pipe 23; Spindle operationally, sewage is filtered it by oil sealing 16, and the sewage after filtration lubricates sliding bearing 15, enters afterwards in middle sliding bearing 12 and lubricates it, now, the sewage after being filled with filtration in the lower support pipe 13 between sliding bearing 15 and sliding bearing 12; In addition, enter the raffinate in motor 4 for partial compromise, the back pressure produced by paying impeller 22 carries out acceleration pump drainage to it, is entered in cesspool to gush drainage port 5.
The present embodiment utilizes sliding bearing to substitute the rolling bearing of transmission employing; eliminate this link of mechanical seal protection bearing; bearing lubrication is changed into water lubrication by oil lubrication; thoroughly overcome the feature that rolling bearing fears water; effectively extend the overhaul life of liquid sewage pump, ensure that the working life of liquid sewage pump.
Claims (4)
1. a liquid sewage pump, comprise the pump housing, the impeller being provided with pump shaft in the described pump housing and being positioned on described pump shaft, support tube is provided with above the described pump housing, described support tube upper end portion is provided with motor through support, spindle is provided with in described support tube, the two end part of described spindle are connected with described machine shaft and described pump shaft respectively, it is characterized in that described spindle underpart and described pump shaft joint coaxial sleeve are provided with oil sealing, described support tube bottom and middle part are respectively arranged with properties of journal bearing lubricated and middle slip bearing, and described properties of journal bearing lubricated is positioned at above described oil sealing.
2. a kind of liquid sewage pump according to claim 1, it is characterized in that described support tube is made up of the upper support tube coaxially connected and lower support pipe, described middle slip bearing is positioned at the joint of described upper support tube and described lower support pipe.
3. a kind of liquid sewage pump according to claim 1 and 2, is characterized in that described support tube upper end portion is provided with rolling bearing.
4. a kind of liquid sewage pump according to claim 1, it is characterized in that described spindle top is provided with pair impeller with its coaxial rotation, described support tube wall offers drainage port, and described drainage port position is corresponding with described pair of impeller location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520129615.4U CN204511916U (en) | 2015-03-06 | 2015-03-06 | A kind of liquid sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520129615.4U CN204511916U (en) | 2015-03-06 | 2015-03-06 | A kind of liquid sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511916U true CN204511916U (en) | 2015-07-29 |
Family
ID=53709898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520129615.4U Expired - Fee Related CN204511916U (en) | 2015-03-06 | 2015-03-06 | A kind of liquid sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204511916U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422476A (en) * | 2015-12-31 | 2016-03-23 | 镇江江大泵业科技有限公司 | Submersible pump with filtering function |
| CN108612657A (en) * | 2018-06-07 | 2018-10-02 | 佛山市肯富来工业泵有限公司 | Greater than flow liquid sewage pump |
-
2015
- 2015-03-06 CN CN201520129615.4U patent/CN204511916U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422476A (en) * | 2015-12-31 | 2016-03-23 | 镇江江大泵业科技有限公司 | Submersible pump with filtering function |
| CN108612657A (en) * | 2018-06-07 | 2018-10-02 | 佛山市肯富来工业泵有限公司 | Greater than flow liquid sewage 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 |