CN110159599B - Cooling flushing structure of core-pulling type water pump shafting - Google Patents
Cooling flushing structure of core-pulling type water pump shafting Download PDFInfo
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- CN110159599B CN110159599B CN201910485021.XA CN201910485021A CN110159599B CN 110159599 B CN110159599 B CN 110159599B CN 201910485021 A CN201910485021 A CN 201910485021A CN 110159599 B CN110159599 B CN 110159599B
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- cooling
- bearing assembly
- pump shaft
- lubrication groove
- shaft
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- 238000001816 cooling Methods 0.000 title claims abstract description 112
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 58
- 238000005461 lubrication Methods 0.000 claims abstract description 48
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 239000000110 cooling liquid Substances 0.000 claims description 5
- 238000005086 pumping Methods 0.000 abstract description 19
- 239000012535 impurity Substances 0.000 abstract description 8
- 230000001681 protective effect Effects 0.000 abstract description 8
- 230000001050 lubricating effect Effects 0.000 description 9
- 239000012809 cooling fluid Substances 0.000 description 6
- 239000013049 sediment Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 238000002955 isolation Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the field of pumps, in particular to a cooling flushing structure of a core-pulling type water pump shafting, which comprises a pump shaft, an upper bearing assembly, an end cover, a protective tube, a flow guide assembly and a lower bearing assembly, wherein the upper bearing assembly, the end cover, the protective tube, the flow guide assembly and the lower bearing assembly are sleeved on the pump shaft and are sequentially connected, and the end cover, the protective tube, the flow guide assembly and the lower bearing assembly are respectively provided with a cooling hole and are sequentially communicated to form a cooling channel; one end of the upper bearing assembly, which is far away from the protection pipe, is in sealing connection with the pump shaft, an upper lubrication groove is arranged between the upper bearing assembly and the pump shaft, one end of the lower bearing assembly, which is far away from the protection pipe, is in sealing connection with the pump shaft, and a lower lubrication groove is arranged between the lower bearing assembly and the pump shaft; the guide assembly, the protection tube and the end cover are sleeved on the pump shaft and form a cooling cavity with the pump shaft, the upper bearing assembly is provided with a liquid outlet, the end cover is provided with a liquid inlet, and the liquid inlet, the cooling channel, the lower lubrication groove, the cooling cavity, the upper lubrication groove and the liquid outlet are sequentially communicated. The invention can be used for pumping clean water treatment system containing impurities such as silt and the like at normal temperature, and has wide application range.
Description
Technical Field
The invention relates to the field of pumps, in particular to a cooling flushing structure of a core-pulling type water pump shafting.
Background
In the existing submerged pump technology, the shaft system adopts a thrust bearing structure and an auxiliary support sliding bearing structure, the thrust bearing structure is lubricated by lubricating grease or lubricating oil, if lubricating medium leaks to cause environmental pollution, lubricating fluid of the adopted auxiliary support sliding bearing is pumping medium, independent isolation lubrication, flushing and cooling are not carried out on the bearing, cooling fluid flows in from a filler and flows out from the filler, independent isolation flow is not formed, a large amount of impurities such as silt or hard particles contained in the medium directly flush the bearing, the running temperature of the bearing cannot be taken away by the cooling fluid, the damage of the sliding bearing is easily caused, the running vibration and noise of the pump are large, the service life of the water pump is reduced, and the water pump is difficult to pump high-temperature or low-temperature medium and medium containing a large amount of impurities such as silt or hard particles is difficult to pump due to the influence of the structure, so the application range of the water pump is limited.
Disclosure of Invention
The invention aims to provide a cooling flushing structure of a core-pulling type water pump shafting, which is safe, clean, multipurpose and long in service life.
In order to achieve the above purpose, the invention provides a cooling flushing structure of a core-pulling type water pump shafting, which comprises a pump shaft, an upper bearing assembly, an end cover, a protective tube, a flow guide assembly and a lower bearing assembly, wherein the upper bearing assembly, the end cover, the protective tube, the flow guide assembly and the lower bearing assembly are sleeved on the pump shaft and are sequentially connected, and the end cover, the protective tube, the flow guide assembly and the lower bearing assembly are respectively provided with a cooling hole and are sequentially communicated to form a cooling channel for cooling liquid circulation;
the end, far away from the protection tube, of the upper bearing assembly is in sealing connection with the pump shaft, an upper lubrication groove is formed between the upper bearing assembly and the pump shaft, the end, far away from the protection tube, of the lower bearing assembly is in sealing connection with the pump shaft, and a lower lubrication groove is formed between the lower bearing assembly and the pump shaft;
the guide assembly, the protection tube and the end cover are sleeved on the pump shaft and form a cooling cavity with the pump shaft, the upper bearing assembly is provided with a liquid outlet, the end cover is provided with a liquid inlet, and the liquid inlet, the cooling channel, the lower lubrication groove, the cooling cavity, the upper lubrication groove and the liquid outlet are sequentially communicated.
Optionally, the lower bearing assembly includes lower bearing frame and lower slide bearing, lower slide bearing installs in the lower bearing frame, the pump shaft cover is equipped with the second sleeve, lower slide bearing cover is located the second sleeve, the lower bearing frame has been seted up the cooling hole, lower slide bearing has seted up cooling through-hole and along axial extension the lubrication groove down, the cooling hole passes through cooling through-hole and lubrication groove intercommunication down.
Optionally, the lower bearing seat is provided with an annular groove, and the cooling hole, the annular groove, the cooling through hole and the lower lubrication groove are sequentially communicated.
Optionally, the bearing seat has offered the bearing seal position, the bearing seal position is installed down the bearing seal and is compressed tightly fixedly through the axle closing cap, lower bearing seal medial surface and first axle sleeve sealing connection.
Optionally, the water conservancy diversion subassembly includes water conservancy diversion shell and lower water conservancy diversion shell, lower water conservancy diversion shell cover is established and is fixed in lower bearing assembly and with lower bearing assembly sealing connection, go up water conservancy diversion shell one end and lower water conservancy diversion shell sealing fixed connection, the other end and pillar sealing fixed connection, go up water conservancy diversion shell and lower water conservancy diversion shell cover and locate the pump shaft and form respectively the cooling chamber with lubrication groove intercommunication down.
Optionally, the end cover is sleeved on the upper bearing assembly and forms the cooling cavity with the pump shaft, one end of the end cover is in sealing connection with the protection tube, and the other end of the end cover is in sealing connection with the upper bearing assembly.
Optionally, the upper bearing assembly includes upper bearing frame and last slide bearing, go up slide bearing and install in the upper bearing frame, the pump shaft cover is equipped with first axle sleeve, go up slide bearing cover and locate first axle sleeve, go up slide bearing and seted up along axial extension go up the lubrication groove, go up lubrication groove both ends respectively with cooling chamber and liquid outlet intercommunication.
Optionally, the upper bearing assembly further comprises a sealing cover, one end of the sealing cover is in sealing connection with the upper bearing seat, the other end of the sealing cover is in sealing connection with the pump shaft, the liquid outlet is formed in the sealing cover, and the upper lubrication groove is communicated with the liquid outlet.
Optionally, a cooling pipe is placed in a cooling cavity formed between the protection pipe and the pump shaft, two ends of the cooling pipe are fixed on the protection pipe through pipe clamps respectively, and pipe holes of the cooling pipe are the cooling holes.
The embodiment of the invention has the following technical effects:
the invention can be used for pumping clean and normal-temperature medium water treatment systems containing impurities such as sediment, and the like, can also be used for pumping high-temperature and low-temperature medium water treatment systems in the fields of sewage treatment and petrochemical industry, has wide application range, realizes the isolation of a cooling liquid flow channel and a pumping medium by communicating a liquid inlet, a cooling channel formed by an end cover, a protective tube, a flow guide assembly and a lower bearing assembly with a liquid outlet, and avoids the communication of the cooling liquid flow channel and the pumping medium channel, so that sediment, hard particles and other impurities in the pumping medium are directly washed and ground on a bearing, and can flow out through the liquid outlet after passing through the cooling channel, the lower lubrication groove, the cooling cavity and the upper lubrication channel by introducing the cleaning medium into the liquid inlet, thereby lubricating and cooling a pump shaft, and is more convenient to use.
Drawings
FIG. 1 is a schematic view of the construction of a preferred embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the seal cap in the preferred embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the end cap in the preferred embodiment of the present invention;
FIG. 4 is a schematic view showing the structure of a protective tube in a preferred embodiment of the present invention;
FIG. 5 is a schematic view of the structure of the upper shell according to the preferred embodiment of the present invention;
FIG. 6 is a schematic view of the structure of the lower pod of the preferred embodiment of the present invention;
FIG. 7 is a schematic view of the structure of a lower bearing assembly in a preferred embodiment of the present invention;
FIG. 8 is a schematic view of the structure of the lower bearing housing in the preferred embodiment of the present invention;
FIG. 9 is a schematic view showing the structure of a lower slide bearing in a preferred embodiment of the present invention;
fig. 10 is a schematic structural view of the second sleeve in the preferred embodiment of the present invention.
Reference numerals illustrate:
1. a pump shaft;
2. the upper bearing assembly 21, the upper bearing seat 22, the upper sliding bearing 221, the upper lubrication groove 23, the sealing cover 231 and the liquid outlet;
3. an end cover 31 and a liquid inlet;
4. a protection pipe 41, a cooling pipe 42 and a pipe clamp;
5. the flow guiding assembly 51, the upper flow guiding shell 52 and the lower flow guiding shell;
6. the lower bearing assembly, 61, the lower bearing seat, 611, the annular groove, 612, the lower shaft seal, 613, the shaft seal cover, 614, the shaft seal position, 62, the lower sliding bearing, 621, the lower lubrication groove, 622 and the cooling through hole;
7. a cooling hole;
8. a cooling chamber;
9. a first sleeve;
10. a second sleeve;
11. a screw;
12. a seal ring;
13. sealing the hole site;
14. a flat key;
15. a round nut;
16. a back-off washer;
17. a keyway.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
Referring to fig. 1 to 10, the present embodiment provides a cooling and flushing structure of a core-pulling type water pump shafting, which is characterized by comprising a pump shaft 1, and an upper bearing assembly 2, an end cover 3, a protection tube 4, a flow guiding assembly 5 and a lower bearing assembly 6 which are sleeved on the pump shaft 1 and are sequentially connected, wherein the end cover 3, the protection tube 4, the flow guiding assembly 5 and the lower bearing assembly 6 are respectively provided with a cooling hole 7 which is sequentially communicated to form a cooling channel for cooling liquid circulation;
one end of the upper bearing assembly 2, which is far away from the protection tube 4, is in sealing connection with the pump shaft 1, an upper lubrication groove 221 is formed between the upper bearing assembly 2 and the pump shaft 1, one end of the lower bearing assembly 6, which is far away from the protection tube 4, is in sealing connection with the pump shaft 1, and a lower lubrication groove 621 is formed between the lower bearing assembly 6 and the pump shaft 1;
the guide assembly 5, the protection tube 4 and the end cover 3 are sleeved on the pump shaft 1 and form a cooling cavity 8 with the pump shaft 1, the upper bearing assembly 2 is provided with a liquid outlet 231, the end cover 3 is provided with a liquid inlet 31, and the liquid inlet 31, the cooling channel, the lower lubrication groove 621, the cooling cavity 8, the upper lubrication groove 221 and the liquid outlet 231 are sequentially communicated.
The invention can be used for pumping clean and normal-temperature medium water treatment systems containing impurities such as sediment, and the like, and also can be used for pumping high-temperature and low-temperature medium water treatment systems in the fields of sewage treatment and petrochemical industry, has wide application range, realizes the isolation of a cooling fluid flow channel and a pumping medium by communicating a liquid inlet 31 with a cooling channel formed by an end cover 3, a protection pipe 4, a flow guide assembly 5 and a lower bearing assembly 6 and a cooling cavity 8 and a liquid outlet 231, avoids the communication of the cooling fluid flow channel and the pumping medium channel, causes sediment or hard particles and the like in the pumping medium to directly wash and grind a bearing, and can flow out through the liquid outlet 231 after the cleaning medium flows through the cooling channel, a lower lubrication groove 621, the cooling cavity 8 and an upper lubrication channel by introducing the cleaning medium into the liquid inlet 31, thereby realizing lubrication and cooling of the pump shaft 1, and is more convenient to use.
Referring to fig. 7 and 8, the lower bearing assembly 6 of the present embodiment includes a lower bearing seat 61 and a lower sliding bearing 62, the lower sliding bearing 62 is installed in the lower bearing seat 61, the pump shaft 1 is sleeved with a round nut 15 and a stop washer 16, the pump shaft 1 is provided with a flat key 14, the second shaft sleeve 10 is sleeved on the pump shaft 1 to be matched and fixed with the round nut 15, the stop washer 16 and the flat key 14, wherein the pump shaft 1 is provided with a key groove 17, the stop washer 16 is matched and fixed with the key groove 17, the lower sliding bearing 62 is sleeved on the second shaft sleeve 10 to be in sliding connection with the second shaft sleeve 10, the lower bearing seat 61 is provided with a cooling hole 7, the lower sliding bearing 62 is provided with a cooling through hole 622 and a lower lubrication groove 621 extending along the axial direction, and the cooling hole 7 is communicated with the lower lubrication groove 621 through the cooling through hole 622.
And the lower bearing seat 61 is provided with a shaft seal position 614, the shaft seal position 614 is provided with a lower shaft seal 612 and is fixed by pressing through a shaft seal cover 613, and the inner side surface of the lower shaft seal 612 is in sealing connection with the first shaft sleeve 9.
In addition, referring to fig. 1 and 2, the upper bearing assembly 2 includes an upper bearing seat 21 and an upper sliding bearing 22, the upper sliding bearing 22 is installed in the upper bearing seat 21, the pump shaft 1 is sleeved and fixed with the first shaft sleeve 9, the first shaft sleeve 9 is fixed by matching with the round nut 15, the stop washer 16 and the flat key 14 on the pump shaft 1, the upper sliding bearing 22 is sleeved and arranged on the first shaft sleeve 9, an upper lubrication groove 221 extending along the axial direction is formed in the upper sliding bearing 22, and two ends of the upper lubrication groove 221 are respectively communicated with the cooling cavity 8 and the liquid outlet 231.
And the upper bearing assembly 2 further comprises a sealing cover 23, one end of the sealing cover 23 is in sealing connection with the upper bearing seat 21, the other end of the sealing cover is in sealing connection with the pump shaft 1 through the sealing ring 12 and the screw 11, the liquid outlet 231 is formed in the sealing cover 23, the upper lubrication groove 221 is communicated with the liquid outlet 231, in the embodiment, a shaft seal is installed in the sealing cover 23 to be integrated, and the sealing cover 23 is in sealing connection with the pump shaft 1 through the shaft seal.
Therefore, the pump shaft 1, the upper bearing assembly 2 and the lower bearing assembly 6 of the invention do not adopt rolling bearings and mechanical seals any more, the sealing problem of the rolling bearings and the flushing and lubricating problem of the mechanical seals are solved, and the water pump does not need to be lubricated by lubricating grease or lubricating oil, so that the environment and the cleaning and sanitation of pumping media are ensured, the running, maintenance and repair costs of the pump are reduced, the running safety and reliability of the water pump are improved, and the service life of the pump is prolonged.
Further, referring to fig. 8, the lower bearing housing 61 is provided with an annular groove 611, and the cooling hole 7, the annular groove 611, the cooling through hole 622 and the lower lubrication groove 621 are sequentially communicated, so that the cooling through hole 622 is matched with the cooling through hole 622, the cooling through hole 622 is not required to be aligned with the cooling hole 7, the cooling through hole 622 is communicated with the cooling hole 7 through the annular groove 611, the installation is more convenient, and the use stability is higher.
Referring to fig. 1, 5 and 6, the flow guiding assembly 5 includes an upper flow guiding shell 51 and a lower flow guiding shell 52, in this embodiment, a lower bearing seat 61 is matched with the lower flow guiding shell 52, and a sealing ring 12 between the lower bearing seat 61 and the lower flow guiding shell 52 is pressed by a screw 11 and then fixed, so that a cooling hole 7 of the lower bearing seat 61 is communicated with a cooling hole 7 of the lower flow guiding shell 52; the sealing ring 12 is placed in the sealing hole position 13 arranged on the lower diversion shell 52, the upper diversion shell 51 is sleeved into the pump shaft 1 and then is matched with the lower diversion shell 52, the sealing hole position 13 arranged on the upper diversion shell 51 is matched with the sealing ring 12, the screw 11 fixes the upper diversion shell 51 on the lower diversion shell 52 through the screw 11 hole formed on the upper diversion shell 51 and then presses the sealing ring 12 tightly, the cooling cavity 8 of the upper diversion shell 51 is communicated with the cooling cavity 8 of the lower diversion shell 52, the cooling hole 7 of the upper diversion shell 51 is communicated with the cooling hole 7 of the lower diversion shell 52, and the lower lubrication groove 621 is communicated with the cooling cavity 8 of the lower diversion shell 52.
In this embodiment, the holes of the screw 11 provided on the upper diversion shell 51 are filled with polymer soft filler, so that the surface of the upper diversion shell 51 is kept flat, and the diversion effect of the upper diversion shell 51 is maintained.
Referring to fig. 3, further, two ends of the end cover 3 are respectively provided with a sealing hole site 13, a sealing ring 12 is placed in the sealing hole site 13 of the end cover 3, an upper bearing seat 21 is sleeved into the pump shaft 1 and then is matched with the end cover 3, the upper bearing seat 21 is fixed on the end cover 3 through a screw 11 and then is pressed against the sealing ring 12, the end cover 3 is fixed on the protection tube 4 through the screw 11 and then is pressed against the sealing ring 12, and a cooling cavity 8 formed between the end cover 3 and the pump shaft 1 is communicated with a cooling cavity 8 formed by the protection tube 4 and an upper lubrication groove 221.
Referring to fig. 4, in the present embodiment, a cooling cavity 8 is formed between the protection tube 4 and the pump shaft 1, a cooling tube 41 is placed in the cooling cavity 8, two ends of the cooling tube 41 are fixed on the protection tube 4 through a tube clamp 42, and cooling holes 7 formed by tube holes of the cooling tube 41 are respectively communicated with the cooling holes 7 of the end cover 3 and the cooling holes 7 of the upper diversion shell 51.
The rotor component formed by combining the cooling flushing structure and the impeller of the water pump is vertically hung in the pump shell, and the integrally-drawn core-pulling structure can be realized.
In summary, the invention can be used for pumping clean and normal-temperature medium water treatment systems containing impurities such as sediment, and also can be used for pumping high-temperature and low-temperature medium water treatment systems in the fields of sewage treatment and petrochemical industry, has wide application range, realizes the isolation of a cooling fluid flow channel and a pumping medium by communicating a liquid inlet 31 with a cooling channel formed by an end cover 3, a protection pipe 4, a flow guide assembly 5 and a lower bearing assembly 6 and a cooling cavity 8 and a liquid outlet 231, avoids the communication of the cooling fluid flow channel and the pumping medium channel, causes the impurities such as sediment or hard particles in the pumping medium to directly wash and grind a bearing, and can flow out through the liquid outlet 231 after passing through the cooling channel, a lower lubrication groove 621, the cooling cavity 8 and an upper lubrication channel by introducing the cleaning medium into the liquid inlet 31, thereby lubricating and cooling the pump shaft 1, and is more convenient to use.
In addition, the pump shaft 1, the upper bearing assembly 2 and the lower bearing assembly 6 of the invention do not adopt rolling bearings and mechanical seals any more, so that the sealing problem of the rolling bearings and the flushing and lubricating problem of the mechanical seals are solved, and the water pump does not need to be lubricated by lubricating grease or lubricating oil, thereby ensuring the cleanness and sanitation of environment and pumping media, reducing the running, maintenance and repair costs of the pump, improving the running safety and reliability of the water pump and prolonging the service life of the pump.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used herein to describe various information, but such information should not be limited to these terms, which are merely used to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the invention.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (7)
1. The cooling flushing structure of the core-pulling type water pump shafting is characterized by comprising a pump shaft, an upper bearing assembly, an end cover, a protecting pipe, a flow guide assembly and a lower bearing assembly, wherein the upper bearing assembly, the end cover, the protecting pipe, the flow guide assembly and the lower bearing assembly are sleeved on the pump shaft and are sequentially connected, and the end cover, the protecting pipe, the flow guide assembly and the lower bearing assembly are respectively provided with cooling holes and are sequentially communicated to form a cooling channel for cooling liquid circulation;
the end, far away from the protection tube, of the upper bearing assembly is in sealing connection with the pump shaft, an upper lubrication groove is formed between the upper bearing assembly and the pump shaft, the end, far away from the protection tube, of the lower bearing assembly is in sealing connection with the pump shaft, and a lower lubrication groove is formed between the lower bearing assembly and the pump shaft;
the guide assembly, the protection pipe and the end cover are sleeved on the pump shaft and form a cooling cavity with the pump shaft, the upper bearing assembly is provided with a liquid outlet, the end cover is provided with a liquid inlet, and the liquid inlet, the cooling channel, the lower lubrication groove, the cooling cavity, the upper lubrication groove and the liquid outlet are sequentially communicated;
the upper bearing assembly comprises an upper bearing seat and an upper sliding bearing, the upper sliding bearing is arranged in the upper bearing seat, the pump shaft sleeve is provided with a first shaft sleeve, the upper sliding bearing sleeve is arranged on the first shaft sleeve, the upper sliding bearing is provided with an upper lubrication groove extending along the axial direction, and two ends of the upper lubrication groove are respectively communicated with the cooling cavity and the liquid outlet;
the lower bearing assembly comprises a lower bearing seat and a lower sliding bearing, the lower sliding bearing is installed in the lower bearing seat, a second shaft sleeve is sleeved on the pump shaft, the lower sliding bearing is sleeved on the second shaft sleeve, the lower bearing seat is provided with a cooling hole, the lower sliding bearing is provided with a cooling through hole and a lower lubrication groove extending along the axial direction, and the cooling hole is communicated with the lower lubrication groove through the cooling through hole.
2. The cooling and flushing structure of a core-pulling type water pump shafting according to claim 1, wherein the lower bearing seat is provided with an annular groove, and the cooling hole, the annular groove, the cooling through hole and the lower lubrication groove are sequentially communicated.
3. The cooling and flushing structure of a core-pulling type water pump shafting according to claim 2, wherein a shaft seal position is arranged on the lower bearing seat, a lower shaft seal is arranged on the shaft seal position and is pressed and fixed through a shaft seal cover, and the inner side surface of the lower shaft seal is in sealing connection with the first shaft sleeve.
4. The cooling and flushing structure of a core-pulling type water pump shafting according to claim 1, wherein the flow guiding assembly comprises an upper flow guiding shell and a lower flow guiding shell, the lower flow guiding shell is sleeved and fixed on the lower bearing assembly and is in sealing connection with the lower bearing assembly, one end of the upper flow guiding shell is in sealing and fixed connection with the lower flow guiding shell, the other end of the upper flow guiding shell is in sealing and fixed connection with the protecting tube, and the upper flow guiding shell and the lower flow guiding shell are sleeved on the pump shaft to respectively form the cooling cavity and the lower lubrication groove.
5. The cooling and flushing structure of a core-pulling type water pump shafting according to claim 1, wherein the end cover is sleeved on the upper bearing assembly and forms the cooling cavity with the pump shaft, one end of the end cover is in sealing connection with the protection tube, and the other end of the end cover is in sealing connection with the upper bearing assembly.
6. The cooling and flushing structure of a core-pulling type water pump shafting according to claim 1, wherein the upper bearing assembly further comprises a sealing cover, one end of the sealing cover is in sealing connection with the upper bearing seat, the other end of the sealing cover is in sealing connection with the pump shaft, the liquid outlet is formed in the sealing cover, and the upper lubrication groove is communicated with the liquid outlet.
7. The cooling and flushing structure of a core-pulling type water pump shafting according to claim 1, wherein a cooling pipe is placed in a cooling cavity formed between the protecting pipe and the pump shaft, two ends of the cooling pipe are respectively fixed on the protecting pipe through pipe clamps, and pipe holes of the cooling pipe are cooling holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910485021.XA CN110159599B (en) | 2019-06-05 | 2019-06-05 | Cooling flushing structure of core-pulling type water pump shafting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910485021.XA CN110159599B (en) | 2019-06-05 | 2019-06-05 | Cooling flushing structure of core-pulling type water pump shafting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110159599A CN110159599A (en) | 2019-08-23 |
| CN110159599B true CN110159599B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910485021.XA Active CN110159599B (en) | 2019-06-05 | 2019-06-05 | Cooling flushing structure of core-pulling type water pump shafting |
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| JP2011226420A (en) * | 2010-04-21 | 2011-11-10 | Torishima Pump Mfg Co Ltd | Vertical shaft pump facility |
| CN203570643U (en) * | 2013-12-05 | 2014-04-30 | 山东双轮股份有限公司 | Water lubricating sliding bearing device for long shaft pump |
| WO2016155221A1 (en) * | 2015-03-31 | 2016-10-06 | 邢宇 | Closed type mechanical sealing pump efficiency ring and shaft seal flushing system having pump efficiency ring |
| CN210799509U (en) * | 2019-06-05 | 2020-06-19 | 广州市昕恒泵业制造有限公司 | Cooling and flushing structure of core-pulling type water pump shaft system |
-
2019
- 2019-06-05 CN CN201910485021.XA patent/CN110159599B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011226420A (en) * | 2010-04-21 | 2011-11-10 | Torishima Pump Mfg Co Ltd | Vertical shaft pump facility |
| CN203570643U (en) * | 2013-12-05 | 2014-04-30 | 山东双轮股份有限公司 | Water lubricating sliding bearing device for long shaft pump |
| WO2016155221A1 (en) * | 2015-03-31 | 2016-10-06 | 邢宇 | Closed type mechanical sealing pump efficiency ring and shaft seal flushing system having pump efficiency ring |
| CN210799509U (en) * | 2019-06-05 | 2020-06-19 | 广州市昕恒泵业制造有限公司 | Cooling and flushing structure of core-pulling type water pump shaft system |
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