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CN209557344U - A kind of double entry pump bearing fan fin cooling structure - Google Patents

A kind of double entry pump bearing fan fin cooling structure Download PDF

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Publication number
CN209557344U
CN209557344U CN201920122053.9U CN201920122053U CN209557344U CN 209557344 U CN209557344 U CN 209557344U CN 201920122053 U CN201920122053 U CN 201920122053U CN 209557344 U CN209557344 U CN 209557344U
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China
Prior art keywords
bearing
fan
pump shaft
shaft
pump
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CN201920122053.9U
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Chinese (zh)
Inventor
张克凤
何敏
王德彬
罗鸿斌
王涛
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Shanghai Kaiquan Pump Group Co Ltd
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Shanghai Kaiquan Pump Group Co Ltd
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Abstract

The utility model relates to a kind of double entry pump bearing fan fin cooling structures, including bearing body, bearing gland, bearing, pump shaft, fan, fan guard, fan block cover, flat key, circlip for shaft, mechanical oil separation device;Bearing body is the installation shell of bearing;Radiated rib is cast on bearing body;A bearing installation space is collectively formed in bearing gland and bearing body;Pump shaft is lengthened in anti-drive end pump shaft, and fan is mounted on the axis of pump shaft lengthening section, and borrowing general flat key transmitting torsional forces makes fan rotate together with the axis, and axially position borrows circlip for shaft;Fan guard and fan block cover are all in the two sides of fan;Circlip for shaft is mounted on pump shaft, axial restraint and positioning for fan;Mechanical oil separation device is mounted between bearing gland and pump shaft, and mechanical oil separation device prevents lubricating oil from leaking outside between bearing gland and pump shaft axis, provides a closed space for bearing chamber.The utility model increases the service life of water pump bearing, reduces unit maintenance frequency.

Description

A kind of double entry pump bearing fan fin cooling structure
Technical field
The utility model relates to a kind of cooling structures, and in particular to one kind effectively avoids load larger, and medium temperature is higher Bearing Temperature is caused, the double entry pump bearing fan fin cooling structure of bearing life is influenced.
Background technique
Centrifugal pump is opened in level and has unique symmetrical structure, and theoretical axial force is zero, and runnability is relatively good, extensively Applied to fields such as water conservancy field irrigation, petrochemical industry and power plant.In order to cater to the demand of society, the double entry pump of big load is wide General application, with the needs of the big operating condition of water pump, the core component as double entry pump pump primarily forms component bearing and also increases therewith Load, double entry pump is due to special symmetrical structure, and it will be its main task that bearing, which bears biggish radial force, and bearing shell is current The bearing of big load operating condition first choice, but since extraneous factors, axial force may not be able to be cancelled completely, we can select A pair of of angular contact ball bearing is born mounted in anti-drive end, in this way can shorten driving and with it is non-driven and the distance between, to pump Operating status for be a kind of best selection.Since anti-drive end will bear additional axial force, so non-driven short Bearing temperature is higher, in order to reduce this temperature, increases a fan, i.e., simply and conveniently.Ensure the operation of pump group efficient stable And the key factor of long-life.
It is existing level in open double-suction pump shaft bearing structure mode mainly have it is following: parts of bearings borrow thin oil be lubricated axis Watt and angular contact ball bearing, since medium temperature is higher, pump condition is larger, bearing temperature rise is very fast, if existed using traditional type Increase waterway in original bearing body casting, lubricating oil space can be reduced, disc insufficient space influences bearing lubrication, directly Bearing life is caused to shorten.If increasing bearing body space size, entire pump is installed or other will do corresponding adjustment.Except this Except, if casting is bad, between channeling water, cause emulsification of lubricant, directly result in lubricating oil failing bearings and burn out.
Utility model content
In view of the above-mentioned problems, the main purpose of the utility model is to provide one kind effectively to avoid load larger, medium temperature Degree is higher not to cause Bearing Temperature, influences the double entry pump bearing fan fin cooling structure of bearing life.
The utility model is to solve above-mentioned technical problem by following technical proposals: a kind of double entry pump bearing fan rib Piece cooling structure, the double entry pump bearing fan fin cooling structure include: bearing body, bearing gland, bearing, pump shaft, fan, Fan guard, fan block cover, flat key, circlip for shaft, mechanical oil separation device;
Bearing body: bearing body is the installation shell of bearing;Radiated rib is cast on bearing body;
Bearing gland: a bearing installation space is collectively formed in bearing gland and bearing body, while determining bearing outer ring Installation dimension;
Pump shaft: the pump shaft is lengthened in anti-drive end pump shaft, is provided with keyway on pump shaft;
Fan: the fan is mounted on the axis of pump shaft lengthening section, and borrowing general flat key transmitting torsional forces makes fan and axis It rotates together, axially position borrows circlip for shaft;
Fan guard and fan block cover: the fan guard and fan block cover are all in the two sides of fan;
Flat key: the keyway size opened on the flat key and pump shaft is consistent, and fan is driven to rotate together with the axis;
Circlip for shaft: the circlip for shaft is mounted on pump shaft, is the axial restraint for fan and positioning;
Mechanical oil separation device: the mechanical oil separation device, mechanical oil separation device are mounted between bearing gland and pump shaft, mechanical oil separation Device prevents lubricating oil from leaking outside between bearing gland and pump shaft axis, provides a closed space for bearing chamber.
In specific embodiment of the utility model, using hex bolts for the company between bearing gland and bearing body It connects, the connection and fixation of fan block cover and fan.
In specific embodiment of the utility model, it is provided on the bearing gland for fan guard and fan block cover Fixation 4 claws.
It is close using O-ring seal between the bearing body and bearing gland in specific embodiment of the utility model Envelope.
The positive effect of the utility model is: the cooling knot of double entry pump bearing fan fin provided by the utility model Structure borrows the augmentation of heat transfer and thermoregulatory effect of fin in thermal conduction study, gas forced convection, fan and fin collective effect, significantly Increase its rate for making to transmit heat, and then make horizontal middle open type double entry pump in big load, thermal medium operating condition runs more stable, axis Bearing portion position is cooling in place;Meanwhile the utility model also effectively extends entire pump group the service life is longer.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2-1 is the main view of the structural schematic diagram of fan in the utility model.
Fig. 2-2 is the left view of the structural schematic diagram of fan in the utility model.
Fig. 3-1 is the main view of the structural schematic diagram of fan guard in the utility model.
Fig. 3-2 is the left view of the structural schematic diagram of fan guard in the utility model.
Fig. 4-1 is the main view of the structural schematic diagram of fan block cover in the utility model.
Fig. 4-2 is the left view of the structural schematic diagram of fan block cover in the utility model.
The main view of structural schematic diagram before the improvement of Fig. 5-1 bearing gland.
Fig. 5-2 is the A-A cross-sectional view of Fig. 5-1.
The main view of the improved structural schematic diagram of Fig. 6-1 bearing gland.
Fig. 6-2 is the B-B cross-sectional view of Fig. 6-1.
Specific embodiment
The utility model preferred embodiment is provided, with reference to the accompanying drawing the technical solution of the utility model is described in detail.
Fig. 1 is the overall structure diagram of the utility model, as shown in Figure 1, double entry pump bearing provided by the utility model Fan fin cooling structure increases casting radiated rib on the basis of original bearing body, can not only play part heat dissipation, give bearing body Cooling, meanwhile, for appearance, it is consistent with non-driven-end bearing body.
The components that the utility model is replaced on the basis of original components have: bearing body, bearing (ball) cover, pump shaft.
Bearing body is the peripheral room of the correlated parts such as bearing, and installation site is constant, then is increased on original bearing mould Add the fin for casting some bar shapeds, bearing body is made preferably to radiate, that is, increases casting radiated rib.
Double entry pump bearing fan fin cooling structure provided by the utility model includes: bearing body 1, bearing gland 2, bearing 3, pump shaft 4, fan 5, fan guard 6, fan block cover 7, flat key 8, circlip for shaft 9, mechanical oil separation device 10.
Bearing body 1 is the installation shell of bearing;Radiated rib 12 is cast on bearing body 1;Bearing gland 2 and bearing body 1 A bearing installation space is collectively formed, while determining the installation dimension of 3 outer ring of bearing;Pump shaft 4 is lengthened in anti-drive end pump shaft, It splines on corresponding position according to GB/T1095-2003 standard.
Fan 5 is mounted on the axis of 4 lengthening section of pump shaft, and borrowing general flat key transmitting torsional forces revolves fan together with axis Turn, axially position borrows circlip for shaft;Fan guard 6 and fan block cover 7 play dust-proof lint all in the two sides of fan 5 Effect.The keyway size opened on flat key 8 and pump shaft 4 is consistent, meets the general flat key of GB/T1096-2003, turns round for transmitting Square drives fan to rotate together with the axis.
Circlip for shaft 9 is mounted on pump shaft 4, is the axial restraint for fan and positioning;Mechanical oil separation device 10, machine Tool grease trap 10 is mounted between bearing gland 2 and pump shaft 4, and mechanical oil separation device 10 prevents lubricating oil from bearing gland 2 and pump shaft 4 It leaks outside between axis, provides a closed space for bearing chamber.Using hex bolts 11 for bearing gland 2 and bearing body 1 it Between connection, the connection and fixation of fan block cover and fan.
Hex bolts in the utility model meets GB/T5783-2000 standard, between bearing gland and bearing body Connection, the connection and fixation of fan block cover and fan, specification size buys according to corresponding size.It is arranged on bearing gland useful In 4 claws of the fixation of fan guard and fan block cover.It is sealed between bearing body 1 and bearing gland 2 using O-ring seal 13.
The principle that the utility model allows extraneous cold wind to borrow fan enters in fan guard, the fluxion strap bearing running body of wind Heat, while the fin by casting on bearing body carries out cooling, keeps the environment of bearing chamber best.
Fig. 2-1 is the main view of the structural schematic diagram of fan in the utility model.Fig. 2-2 is fan in the utility model The left view of structural schematic diagram.It is consistent with keyway on pump shaft if the fan 5 in Fig. 2-1 and 2-2 splines in wheel hub, it adopts more With the cast forms such as plastics or aluminium (consistent with the air-cooled principle of motor).
Fig. 3-1 is the main view of the structural schematic diagram of fan guard in the utility model, and Fig. 3-2 is fan in the utility model The left view of the structural schematic diagram of cover.If the fan guard 6 in Fig. 3-1 and 3-2 is mounted on the periphery of fan, mesh is used for natural wind Entrance, the steel plate for generalling use 3~4mm thickness is made, and the radially connected bolt between bearing gland 2 generallys use the spiral shell of M6 Bolt usually uses 3~4.
Fig. 4-1 is the main view of the structural schematic diagram of fan block cover in the utility model;Fig. 4-2 is the utility model apoplexy Fan the left view of the structural schematic diagram of block cover.As the fan block cover in Fig. 4-1 and 4-2 generallys use the steel plate system of 3~4mm thickness At being formed and fixed by connection with bearing gland 10, see the centre bore in Fig. 4-1 away from the position D3.
The main view of structural schematic diagram before the improvement of Fig. 5-1 bearing gland, Fig. 5-2 are the A-A cross-sectional view of Fig. 5-1;Fig. 6-1 The main view of the improved structural schematic diagram of bearing gland, Fig. 6-2 are the B-B cross-sectional view of Fig. 6-1.Fig. 6-1 and Fig. 6-2 is original Mold (referring to Fig. 5-1,5-2) on the basis of increase by 4 claws, the fixation for fan guard and fan block cover.4 claws 201 It is evenly arranged on bearing gland 2.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention, the utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (4)

1. a kind of double entry pump bearing fan fin cooling structure, it is characterised in that: the cooling knot of the double entry pump bearing fan fin Structure includes: bearing body, bearing gland, bearing, pump shaft, fan, fan guard, fan block cover, flat key, circlip for shaft, machinery Grease trap;
Bearing body: bearing body is the installation shell of bearing;Radiated rib is cast on bearing body;
Bearing gland: a bearing installation space is collectively formed in bearing gland and bearing body, while determining the installation of bearing outer ring Size;
Pump shaft: the pump shaft is lengthened in anti-drive end pump shaft, is provided with keyway on pump shaft;
Fan: the fan is mounted on the axis of pump shaft lengthening section, and borrowing general flat key transmitting torsional forces makes fan together with axis Rotation, axially position borrow circlip for shaft;
Fan guard and fan block cover: the fan guard and fan block cover are all in the two sides of fan;
Flat key: the keyway size opened on the flat key and pump shaft is consistent, and fan is driven to rotate together with the axis;
Circlip for shaft: the circlip for shaft is mounted on pump shaft, is the axial restraint for fan and positioning;
Mechanical oil separation device: the mechanical oil separation device, mechanical oil separation device are mounted between bearing gland and pump shaft, and mechanical oil separation device is anti- Only lubricating oil leaks outside between bearing gland and pump shaft axis, prevents dust impurity from entering, and provides a closed sky for bearing chamber Between.
2. double entry pump bearing fan fin cooling structure according to claim 1, it is characterised in that: used using hex bolts The connection and fixation of connection between bearing gland and bearing body, fan block cover and fan.
3. double entry pump bearing fan fin cooling structure according to claim 1, it is characterised in that: on the bearing gland It is provided with 4 claws of the fixation for fan guard and fan block cover.
4. double entry pump bearing fan fin cooling structure according to claim 1, it is characterised in that: the bearing body and axis It is sealed between pressure cap using O-ring seal.
CN201920122053.9U 2019-01-24 2019-01-24 A kind of double entry pump bearing fan fin cooling structure Active CN209557344U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920122053.9U CN209557344U (en) 2019-01-24 2019-01-24 A kind of double entry pump bearing fan fin cooling structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920122053.9U CN209557344U (en) 2019-01-24 2019-01-24 A kind of double entry pump bearing fan fin cooling structure

Publications (1)

Publication Number Publication Date
CN209557344U true CN209557344U (en) 2019-10-29

Family

ID=68307352

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920122053.9U Active CN209557344U (en) 2019-01-24 2019-01-24 A kind of double entry pump bearing fan fin cooling structure

Country Status (1)

Country Link
CN (1) CN209557344U (en)

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