CN113464454B - Centrifugal water pump with reciprocating circulation - Google Patents
Centrifugal water pump with reciprocating circulation Download PDFInfo
- Publication number
- CN113464454B CN113464454B CN202110521047.2A CN202110521047A CN113464454B CN 113464454 B CN113464454 B CN 113464454B CN 202110521047 A CN202110521047 A CN 202110521047A CN 113464454 B CN113464454 B CN 113464454B
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- motor
- impeller
- hole
- cooling cavity
- wall
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 238000001816 cooling Methods 0.000 claims abstract description 84
- 239000010687 lubricating oil Substances 0.000 claims abstract description 48
- 239000003921 oil Substances 0.000 claims description 35
- 238000009434 installation Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000011148 porous material Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/02—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with gravity feed or drip lubrication
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/18—Electric motors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of centrifugal pumps, in particular to a reciprocating circulating centrifugal water pump which comprises a base and a pump body arranged on the base, wherein one side of the pump body is connected with a motor seat, two sides of the pump body are respectively provided with a water inlet pipe and a water outlet pipe, one end, far away from the pump body, of the motor seat is provided with a motor chamber, the end wall of the motor chamber is provided with a shaft hole communicated with the pump body, and the interior of the motor seat is provided with a cooling cavity positioned outside the shaft hole. According to the invention, the cooling cavity is arranged on the outer side of the shaft hole to cool the motor shaft, water flows are introduced from the water inlet pipe, discharged into the water outlet pipe and discharged out, so that the water flow in the cooling cavity always keeps flowing, the heat in the shaft hole can be quickly and stably carried away, the lubricating oil box is arranged on the motor base, the control valve is driven by the water flow in the cooling cavity to control the lubricating oil to automatically drip, the lubricating effect in the shaft hole is improved, the friction of the motor shaft is reduced, the abrasion and the heating value of the motor shaft are reduced, and the working state of equipment is further improved.
Description
Technical Field
The invention relates to the technical field of centrifugal pumps, in particular to a reciprocating circulating centrifugal water pump.
Background
Centrifugal pumps operate by using rotation of an impeller to cause centrifugal movement of water. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the pump shaft drives the impeller and the water to do high-speed rotation movement, the water is centrifugally moved and thrown to the outer edge of the impeller, and the water flows into the water pressing pipeline of the water pump through the runner of the volute pump shell.
An internal circulation cooling type multistage centrifugal pump disclosed in the prior patent (publication number: CN 112032060A) comprises a pump body, a protective cover, a mounting groove body, a first impeller shaft, a second impeller shaft and an impeller, wherein a water inlet pipe and a water outlet pipe are arranged on the pump body; the pump body is internally provided with a separation plate, the separation plate is provided with a first bearing, a first impeller shaft is fixed in the first bearing, an impeller is fixed on the first impeller shaft, the tail end of the pump body is connected with a protective box, and one side of the protective box is provided with a through hole; the connection surface of the protective box and the pump body is provided with a second bearing, a second impeller shaft is inserted in the second bearing, and the tail end of the second impeller shaft penetrates through the through hole to extend to the outer side.
In the process of implementing the above invention, the inventor finds that at least the following problems in the prior art are not solved:
1. the two ends of the circulating cooling pipe are arranged in the pump body, so that the water flow in the circulating cooling pipe can not be ensured to be in a flowing state all the time, the heat dissipation effect is poor, and the impeller shaft can not be cooled stably;
2. said invention and existent centrifugal pump lack the mechanism for lubricating impeller shaft, and it is necessary to make manual regular maintenance and maintenance, so that it is more complex, and the lack of lubrication of impeller shaft can obviously raise heat quantity, and can result in equipment failure and damage.
For this purpose, a reciprocating centrifugal water pump is proposed.
Disclosure of Invention
The invention aims to provide a reciprocating circulating centrifugal water pump, which is characterized in that a cooling cavity is arranged at the outer side of a shaft hole to cool a motor shaft, water flows are introduced from a water inlet pipe and discharged into a water outlet pipe, so that the water flow in the cooling cavity always keeps flowing, heat in the shaft hole can be quickly and stably carried away, a lubricating oil box is arranged on a motor base, a control valve is driven by the water flow in the cooling cavity to control lubricating oil to automatically drip, the lubricating effect in the shaft hole is improved, the friction of the motor shaft is reduced, the abrasion and the heating value of the motor shaft are reduced, and the working state of equipment is further improved.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a centrifugal water pump of reciprocal circulation, includes the pump body on base and the base, and one side of the pump body is connected with the motor cabinet, and the both sides of the pump body are equipped with inlet tube and outlet pipe respectively, the motor room has been seted up to the one end that the pump body was kept away from to the motor cabinet, set up the shaft hole with the pump body intercommunication on the end wall of motor room, the cooling chamber in the shaft hole outside has been seted up to the inside of motor cabinet, install the first cooling tube with the inlet tube intercommunication and the second cooling tube with the outlet pipe intercommunication on the outer wall of motor cabinet both sides respectively, the tip that the first cooling tube extends to the inside of inlet tube and the first cooling tube towards the opening part of inlet tube, all seted up the intercommunicating pore with the cooling chamber intercommunication on the outer wall of motor cabinet both sides, and two intercommunicating pores communicate with first cooling tube and second cooling tube respectively.
When the centrifugal pump starts to work, water flow enters the pump body from the water inlet pipe and is discharged from the water outlet pipe, a part of water flow enters the cooling cavity through the first cooling pipe and is discharged from the second cooling pipe into the water outlet pipe to be discharged, water flow in the cooling cavity keeps flowing, heat generated in the shaft hole is absorbed and taken away in time, the inside of the shaft hole is always in a proper temperature environment, the motor shaft is prevented from being at an excessively high working temperature, the working state of equipment is improved, and the cooling device is more efficient relative to the cooling mode in the current stage, so that the service life of the equipment is prolonged.
The motor cabinet is characterized in that an oil box groove is formed in the top wall of the motor cabinet, a lubricating oil box is arranged in the oil box groove, a lower oil hole communicated with the shaft hole is formed in the bottom wall of the oil box groove, a cannula is arranged at the top end of the lower oil hole, an impeller groove is formed in the top wall of the cooling cavity, an impeller extending to the inside of the cooling cavity is arranged in the impeller groove, an installation opening is formed in the end wall of the motor cabinet, a control valve for controlling the lower oil hole to be opened and closed is arranged on the inner wall of the installation opening, and the control valve is connected with the impeller in a transmission mode.
When water flows in the cooling cavity, the water flow drives the impeller to rotate, the impeller is in transmission connection with the control valve, the control valve is driven to automatically operate, the lubricating oil is controlled to be automatically released, manual operation is not needed, the cooling cavity is ingenious and convenient, friction between a motor shaft and a shaft hole is reduced, heat productivity in the shaft hole is further reduced, and the working state of equipment is improved. The flowing water flow control lubricating oil is automatically added, so that the manpower expenditure during equipment maintenance is saved, and the equipment stability is better.
Preferably, the cooling cavity is of an arc-shaped structure, and is wrapped on the outer side of the shaft hole, and the cooling cavity is divided into two equal parts and symmetrically arranged on two sides of the lower oil hole.
The cooling cavity cladding nature of arc structure is better, can improve the inside thermal absorption efficiency of counter bore, and then improves the cooling effect, and the cooling cavity divide into two symmetric distributions in oilhole both sides down, for oilhole outflow space down, does not influence the normal whereabouts of lubricating oil.
Preferably, the lubricating oil box comprises a box body, the outer walls at two sides of the box body are respectively connected with a fixing plate, the fixing plates are fixedly attached to the outer wall of the motor base through bolts, the bottom end of the box body is provided with an oil outlet, and the oil outlet is provided with a rubber plug.
The detachable installation is carried out to the lubricating oil box, conveniently adds lubricating oil to the simple operation is filled with lubricating oil from the plug of bottom and can be replenished, makes the intubate run through the plug when the installation can make lubricating oil can flow down smoothly through the intubate and add, has improved the convenience when equipment is used.
Preferably, the top end of the box body is connected with a piston cylinder, a piston is arranged in the piston cylinder, and a pressurizing spring is connected between the inner top wall of the piston cylinder and the piston.
The pressurization spring is arranged to always push the piston, so that air pressure can be applied to the box body to promote the discharge of lubricating oil, the situation that residual lubricating oil cannot be discharged due to the fact that the air pressure in the box body is reduced after part of lubricating oil is discharged is avoided, the stability of equipment in operation is improved, and the use is more convenient.
Preferably, the control valve comprises a valve plate horizontally inserted on the inner wall of the mounting hole, a valve hole is formed in the valve plate, a plate groove matched with the valve plate is formed in the motor base, a reset spring connected with the valve plate is mounted on the end wall of the plate groove, an inclined hole is formed in the end portion of the valve plate, the control valve further comprises a large belt pulley rotatably mounted on the inner wall of the mounting hole, a deflector rod matched with the valve plate is mounted on the large belt pulley, and when the deflector rod sweeps the inclined hole on the valve plate, the reset spring is compressed.
When the large belt pulley rotates, the deflector rod repeatedly extrudes the bevel connection at the end part of the valve plate, the deflector rod extrudes the valve plate to enable the valve plate to retract backwards, the valve hole on the valve plate is communicated with the lower oil hole, lubricating oil is dropped and discharged into the shaft hole to lubricate a motor shaft, when the deflector rod leaves the valve plate, the deflector rod is subjected to the reset force of the reset spring, the valve plate is reset, and the valve hole is staggered to open the lower oil hole to enable the lower oil hole to recover to be closed, so that lubricating oil is blocked. Simple structure is ingenious, has realized adding to the automation of lubricating oil, has saved maintenance expenditure, and is high-efficient convenient.
Preferably, a small belt pulley coaxially connected with the impeller is arranged on the inner wall of the mounting opening, and the small belt pulley is connected with the large belt pulley through belt transmission.
The small belt pulley coaxially connected with the impeller drives the large belt pulley to rotate, so that the power of water flow is transmitted to the large belt pulley, and the automatic addition of lubricating oil is realized. Through designing the size of belt pulley and big belt pulley, can make the rotational speed reduce, and then reduce the interpolation frequency of lubricating oil, avoid lubricating oil to drop the frequency that adds too fast and cause the waste.
Preferably, half of the impeller is accommodated in the impeller groove.
Half of the impeller is positioned in the cooling cavity, so that the impeller can stably rotate, one side of the impeller is stressed, the irregular rotation condition can not occur, and the stability of the equipment in operation is improved.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the cooling cavity is arranged at the outer side of the shaft hole to cool the motor shaft, water flows are introduced from the water inlet pipe and discharged into the water outlet pipe, so that the water flow in the cooling cavity always keeps flowing, heat in the shaft hole can be quickly and stably carried away, the cooling effect is improved, and the working state of the equipment is further ensured.
2. Install the lubricating oil box on the motor cabinet, drive the automatic whereabouts of control valve control lubricating oil through the rivers in the cooling chamber, improve the lubricated effect in the shaft hole, reduce the friction of motor shaft to reduce the wearing and tearing and the calorific capacity of motor shaft, further improved the operating condition of equipment, no longer need artifical interpolation, ingenious convenient.
Drawings
FIG. 1 is a schematic diagram of the front structure of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is a right side schematic view of the present invention;
FIG. 4 is a top view of the present invention;
FIG. 5 is an enlarged view of the structure at A of the present invention;
FIG. 6 is an enlarged view of the structure at B of the present invention;
FIG. 7 is an enlarged view of the structure at C of the present invention;
FIG. 8 is an enlarged view of the structure at D of the present invention;
fig. 9 is a schematic structural view of a valve plate of the present invention.
In the figure: 1. a base; 2. a pump body; 3. a motor base; 4. a water inlet pipe; 5. a water outlet pipe; 6. a first cooling tube; 7. a second cooling tube; 8. a lubricating oil box; 801. a case body; 802. a piston cylinder; 803. a piston; 804. a pressurizing spring; 805. a rubber plug; 806. a fixing plate; 9. a motor chamber; 10. a shaft hole; 11. a cooling chamber; 12. a communication hole; 13. an impeller; 14. an impeller groove; 15. a mounting port; 16. a small pulley; 17. a belt; 18. a large pulley; 19. a deflector rod; 20. a valve plate; 21. a valve hole; 22. a lower oil hole; 23. a return spring; 24. and (3) inserting a tube.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured 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 for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 9, the present invention provides a centrifugal water pump with reciprocating circulation, which has the following technical scheme:
the utility model provides a centrifugal water pump of reciprocal circulation, including the pump body 2 on base 1 and base 1, one side of pump body 2 is connected with motor cabinet 3, the both sides of pump body 2 are equipped with inlet tube 4 and outlet pipe 5 respectively, motor cabinet 9 has been seted up to the one end that pump body 2 was kept away from to motor cabinet 3, the shaft hole 10 that communicates with pump body 2 has been seted up on the end wall of motor cabinet 9, cooling chamber 11 in the shaft hole 10 outside has been seted up to the inside of motor cabinet 3, install the first cooling tube 6 with inlet tube 4 intercommunication and the second cooling tube 7 with outlet pipe 5 intercommunication on the outer wall of motor cabinet 3 both sides respectively, the tip of first cooling tube 6 extends to the inside of inlet tube 4 and the opening part of first cooling tube 6 towards inlet tube 4, all set up the intercommunicating pore 12 with cooling chamber 11 intercommunication on the outer wall of motor cabinet 3 both sides, and two intercommunicating pore 12 communicate with first cooling tube 6 and second cooling tube 7 respectively.
When the centrifugal pump starts to work, water flow enters the pump body 2 from the water inlet pipe 4 and is discharged from the water outlet pipe 5, a part of water flow enters the cooling cavity 11 through the first cooling pipe 6 and is discharged into the water outlet pipe 5 from the second cooling pipe 7 to be discharged, the water flow in the cooling cavity 11 keeps flowing, heat generated in the shaft hole 10 is absorbed and taken away in time, the inside of the shaft hole 10 is always in a proper temperature environment, the motor shaft is prevented from being in an excessively high working temperature, the working state of equipment is improved, and the cooling device is more efficient relative to the cooling mode in the current stage, so that the service life of the equipment is prolonged.
An oil box groove is formed in the top wall of the motor base 3, a lubricating oil box 8 is installed in the oil box groove, a lower oil hole 22 communicated with the shaft hole 10 is formed in the bottom wall of the oil box groove, a cannula 24 is installed at the top end of the lower oil hole 22, an impeller groove 14 is formed in the top wall of the cooling cavity 11, an impeller 13 extending to the inside of the cooling cavity 11 is installed in the impeller groove 14, an installation opening 15 is formed in the end wall of the motor chamber 9, a control valve for controlling the lower oil hole 22 to be opened and closed is installed on the inner wall of the installation opening 15, and the control valve is in transmission connection with the impeller 13.
When water flows in the cooling cavity 11, the water flow drives the impeller 13 to rotate, the impeller 13 is connected with the control valve in a transmission way, so that the control valve automatically operates, further the automatic release of lubricating oil is controlled, manual operation is not needed, the cooling cavity is ingenious and convenient, the friction between a motor shaft and the shaft hole 10 is reduced, the heat productivity in the shaft hole 10 is further reduced, and the working state of equipment is improved. The flowing water flow control lubricating oil is automatically added, so that the manpower expenditure during equipment maintenance is saved, and the equipment stability is better.
As an embodiment of the present invention, referring to fig. 3, the cooling cavity 11 has an arc structure, the cooling cavity 11 is wrapped around the outer side of the shaft hole 10, and the cooling cavity 11 is equally divided and symmetrically disposed at both sides of the lower oil hole 22.
The cooling cavity 11 of arc structure cladding nature is better, can improve the absorption efficiency to the inside heat of shaft hole 10, and then improves the cooling effect, and cooling cavity 11 divide into two symmetric distributions and are gone out the space for lower oilhole 22 outflow, do not influence the normal whereabouts of lubricating oil.
As an embodiment of the present invention, referring to fig. 5, the lubricating oil box 8 includes a box body 801, fixing plates 806 are connected to outer walls on two sides of the box body 801, the fixing plates 806 are fixedly attached to an outer wall of the motor base 3 through bolts, an oil outlet is formed at the bottom end of the box body 801, and a rubber plug 805 is mounted on the oil outlet.
The lubricating oil box 8 is detachably installed, so that lubricating oil is conveniently added, the lubricating oil box is convenient to operate, the lubricating oil can be supplemented by injecting the lubricating oil from the rubber plug 805 at the bottom, the lubricating oil can be added by smoothly flowing down through the rubber plug 805 by penetrating through the insertion tube 24 during installation, and the convenience of equipment in use is improved.
As an embodiment of the present invention, referring to fig. 5, a piston cylinder 802 is connected to the top end of a case 801, a piston 803 is disposed inside the piston cylinder 802, and a pressurizing spring 804 is connected between the piston 803 and the inner top wall of the piston cylinder 802.
The pressurization spring 804 is arranged to always push the piston 803, so that air pressure can be applied to the box body 801 to promote the discharge of lubricating oil, the situation that residual lubricating oil cannot be discharged due to the fact that the air pressure in the box body 801 is reduced after the lubricating oil is discharged partially is avoided, the stability of equipment in operation is improved, and the use is more convenient.
As an embodiment of the present invention, referring to fig. 7 and 8, the control valve includes a valve plate 20 horizontally inserted on an inner wall of the mounting port 15, a valve hole 21 is opened on the valve plate 20, a plate groove adapted to the valve plate 20 is opened in the motor base 3, a return spring 23 connected to the valve plate 20 is installed on an end wall of the plate groove, an inclined port is opened at an end of the valve plate 20, the control valve further includes a large pulley 18 rotatably installed on an inner wall of the mounting port 15, a deflector rod 19 matched with the valve plate 20 is installed on the large pulley 18, and the return spring 23 is compressed when the deflector rod 19 sweeps the inclined port on the valve plate 20.
When the large pulley 18 rotates, the deflector rod 19 repeatedly presses the inclined opening at the end part of the valve plate 20, the deflector rod 19 presses the valve plate 20 to enable the valve plate 20 to retract backwards, the valve hole 21 on the valve plate 20 is communicated with the lower oil hole 22, so that lubricating oil drops are discharged into the shaft hole 10 to lubricate a motor shaft, when the deflector rod 19 leaves the valve plate 20, the valve plate 20 is reset by the reset force of the reset spring 23, and the valve hole 21 staggers the lower oil hole 22 to enable the lower oil hole 22 to recover to be closed, so that the lubricating oil drops are blocked. Simple structure is ingenious, has realized adding to the automation of lubricating oil, has saved maintenance expenditure, and is high-efficient convenient.
As an embodiment of the present invention, referring to fig. 7, a small pulley 16 coaxially connected to the impeller 13 is mounted on the inner wall of the mounting port 15, and the small pulley 16 and the large pulley 18 are connected by a belt 17 in a transmission manner.
The small belt pulley 16 coaxially connected with the impeller 13 drives the large belt pulley 18 to rotate, so that the power of water flow is transmitted to the large belt pulley 18, and further, the automatic addition of lubricating oil is realized.
By designing the sizes of the small pulley 16 and the large pulley 18, the rotational speed can be reduced to a proper level, so that the adding frequency of the lubricating oil can be reduced, and the waste caused by too fast adding frequency of the lubricating oil can be avoided. In addition, by designing the size of the valve hole 22, the volume of the lubricant that is dropped once can be reduced, so that waste is reduced, and the lubricant can be prevented from flowing out by keeping the adding speed and the consuming speed of the lubricant constant.
As an embodiment of the present invention, referring to fig. 6, the impeller 13 is half-housed in the impeller groove 14. Half of the impeller 13 is positioned in the cooling cavity 11, so that the impeller 13 can stably rotate, one side of the impeller 13 is stressed, the irregular rotation condition can not occur, and the stability of the equipment in operation is improved.
Working principle: when the centrifugal pump starts to work, water flow enters the pump body 2 from the water inlet pipe 4 and is discharged from the water outlet pipe 5, a part of water flow enters the cooling cavity 11 through the first cooling pipe 6 and is discharged into the water outlet pipe 5 from the second cooling pipe 7 to be discharged, the water flow in the cooling cavity 11 keeps flowing, heat generated in the shaft hole 10 is absorbed and taken away in time, when water flow passes through the cooling cavity 11, the impeller 13 is driven to rotate, the small belt pulley 16 coaxially connected with the impeller 13 drives the large belt pulley 18 to rotate, when the large belt pulley 18 rotates, the deflector rod 19 repeatedly presses the inclined opening at the end part of the valve plate 20, the deflector rod 19 presses the valve plate 20 to retract backwards, the valve hole 21 on the valve plate 20 is communicated with the lower oil hole 22, and lubricating oil drops into the shaft hole 10 to lubricate a motor shaft.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a centrifugal water pump of reciprocal circulation, includes the pump body (2) on base (1) and base (1), and one side of pump body (2) is connected with motor cabinet (3), and the both sides of pump body (2) are equipped with inlet tube (4) and outlet pipe (5) respectively, its characterized in that: the motor cabinet (3) is far away from one end of the pump body (2) and is provided with a motor chamber (9), the end wall of the motor chamber (9) is provided with a shaft hole (10) communicated with the pump body (2), the inside of the motor cabinet (3) is provided with a cooling cavity (11) positioned at the outer side of the shaft hole (10), the outer walls of the two sides of the motor cabinet (3) are respectively provided with a first cooling pipe (6) communicated with the water inlet pipe (4) and a second cooling pipe (7) communicated with the water outlet pipe (5), the first cooling pipe (6) extends to the inside of the water inlet pipe (4) and the end part of the first cooling pipe (6) faces the opening part of the water inlet pipe (4), the outer walls of the two sides of the motor cabinet (3) are respectively provided with communication holes (12) communicated with the cooling cavity (11), and the two communication holes (12) are respectively communicated with the first cooling pipe (6) and the second cooling pipe (7).
The motor cabinet is characterized in that an oil box groove is formed in the top wall of the motor cabinet (3), a lubricating oil box (8) is arranged in the oil box groove, a lower oil hole (22) communicated with the shaft hole (10) is formed in the bottom wall of the oil box groove, a cannula (24) is arranged at the top end of the lower oil hole (22), an impeller groove (14) is formed in the top wall of the cooling cavity (11), an impeller (13) extending to the inside of the cooling cavity (11) is arranged in the impeller groove (14), an installation opening (15) is formed in the end wall of the motor chamber (9), and a control valve for controlling the opening and the closing of the lower oil hole (22) is arranged on the inner wall of the installation opening (15) and is in transmission connection with the impeller (13).
2. A reciprocating centrifugal water pump according to claim 1, wherein: the cooling cavity (11) is of an arc-shaped structure, the cooling cavity (11) is wrapped on the outer side of the shaft hole (10), and the cooling cavity (11) is divided into two equal parts and symmetrically arranged on two sides of the lower oil hole (22).
3. A reciprocating centrifugal water pump according to claim 1, wherein: the lubricating oil box (8) comprises a box body (801), fixing plates (806) are connected to the outer walls of the two sides of the box body (801), the fixing plates (806) are fixedly attached to the outer wall of the motor base (3) through bolts, an oil outlet is formed in the bottom end of the box body (801), and a rubber plug (805) is mounted on the oil outlet.
4. A reciprocating rotary centrifugal water pump according to claim 3, wherein: the top end of the box body (801) is connected with a piston cylinder (802), a piston (803) is arranged in the piston cylinder (802), and a pressurizing spring (804) is connected between the inner top wall of the piston cylinder (802) and the piston (803).
5. A reciprocating centrifugal water pump according to claim 1, wherein: the control valve comprises a valve plate (20) horizontally inserted on the inner wall of a mounting hole (15), a valve hole (21) is formed in the valve plate (20), a plate groove matched with the valve plate (20) is formed in the motor base (3), a reset spring (23) connected with the valve plate (20) is mounted on the end wall of the plate groove, an inclined hole is formed in the end portion of the valve plate (20), the control valve further comprises a large belt pulley (18) rotatably mounted on the inner wall of the mounting hole (15), a deflector rod (19) matched with the valve plate (20) is mounted on the large belt pulley (18), and when the deflector rod (19) sweeps the inclined hole on the valve plate (20), the reset spring (23) is compressed.
6. A reciprocating centrifugal water pump according to claim 5, wherein: a small belt pulley (16) coaxially connected with the impeller (13) is arranged on the inner wall of the mounting opening (15), and the small belt pulley (16) is in transmission connection with a large belt pulley (18) through a belt (17).
7. A reciprocating centrifugal water pump according to claim 1, wherein: half of the impeller (13) is accommodated in the impeller groove (14).
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| CN202110521047.2A CN113464454B (en) | 2021-05-13 | 2021-05-13 | Centrifugal water pump with reciprocating circulation |
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| CN202110521047.2A CN113464454B (en) | 2021-05-13 | 2021-05-13 | Centrifugal water pump with reciprocating circulation |
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| CN113464454B true CN113464454B (en) | 2023-12-01 |
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| DE102015120076A1 (en) * | 2014-12-05 | 2016-06-09 | Jongherya Co., Ltd. | Lubricant structure for the drive shaft of a fluid pressure increase pump |
| CN205446070U (en) * | 2015-12-27 | 2016-08-10 | 范敏 | Automatic injection device of lubricated liquid of oil field centrifugal pump |
| CN112031915A (en) * | 2020-07-16 | 2020-12-04 | 安徽金力泵业科技有限公司 | Cooling water pump for automobile engine |
| CN212508867U (en) * | 2020-05-15 | 2021-02-09 | 大连天瑞水泥有限公司 | Energy-saving water pump for waste heat power generation and cooling |
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2021
- 2021-05-13 CN CN202110521047.2A patent/CN113464454B/en active Active
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|---|---|---|---|---|
| DE102015120076A1 (en) * | 2014-12-05 | 2016-06-09 | Jongherya Co., Ltd. | Lubricant structure for the drive shaft of a fluid pressure increase pump |
| CN205446070U (en) * | 2015-12-27 | 2016-08-10 | 范敏 | Automatic injection device of lubricated liquid of oil field centrifugal pump |
| CN212508867U (en) * | 2020-05-15 | 2021-02-09 | 大连天瑞水泥有限公司 | Energy-saving water pump for waste heat power generation and cooling |
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Effective date of registration: 20231108 Address after: No. 2 Xinguang Road, High tech Zone, Xiangyang City, Hubei Province, 441058 Applicant after: XIANGYANG WU ER WU PUMP INDUSTRY Co.,Ltd. Address before: Room 1201, building 15, jindiyangshan community, Xingwang Road, Daxing District, Beijing 102600 Applicant before: Wang Zhan |
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