CN215805370U - Vertical self-priming pump - Google Patents

Abstract

The utility model relates to a vertical self-priming pump which comprises a motor, a motor base support, a motor shaft, a motor base, a motor coupling, a pump coupling, a bearing cover, a bearing seat, a sealing shell, a liquid inlet seat, an impeller shell, a box body, a base, a cleaning bin, a material cleaning port, a material inlet, a material outlet and a pump shaft, wherein the motor base support is arranged on the motor base; the negative impeller is further arranged below the sealing shell and on the periphery of the pump shaft in a sleeved mode, pumped liquid can be blocked by the rotary negative impeller before entering the sealing shell and the bearing seat to cause pollution, and therefore the risk of entering the sealing shell and the bearing seat is further reduced.

Description

Vertical self-priming pump

Technical Field

The utility model relates to the technical field of self-sucking pumps, in particular to a vertical self-sucking pump.

Background

Self-priming pumps are devices that operate by driving an impeller with a motor to draw liquid in through a feed inlet and ultimately out of a discharge outlet, however self-priming pumps in the prior art have the following problems when in use:

1) in the prior art, a liquid pumping effect is usually realized by adopting a mode of feeding from the lower part and discharging from the upper part, on one hand, pumped liquid can impact a sealing shell and a bearing seat when going upwards, and meanwhile, the pumped liquid can also have the risk of entering the sealing shell and the bearing seat to cause pollution;

2) the self-priming pump needs to be provided with a bearing supporting motor shaft and a pump shaft, so that necessary lubrication is needed to be realized for the bearing and each shaft during rotating work, the use condition of lubricating oil in the bearing and each shaft is not clear in the prior art, so that the use condition of the lubricating oil in the bearing and each shaft cannot be known in real time, even the existing lubricating oil level meter cannot realize inaccurate detection due to vibration and delay during working, so that the lubricating oil cannot be added in real time, and the service life of the self-priming pump is further influenced;

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a vertical self-sucking pump.

The technical scheme of the utility model is as follows:

a vertical self-priming pump comprises a motor, a motor base, a motor shaft, a motor base, a motor coupling, a pump coupling, a bearing cover, a bearing seat, a sealing shell, a liquid inlet seat, an impeller shell, a box body, a base, a cleaning bin, a material cleaning port, a material inlet, a material outlet and a pump shaft; wherein, the motor is fixedly arranged at the top of the motor base, the bottom of the motor base is fixedly connected with the top of the motor base, the motor shaft sequentially passes through the motor base and the motor base from the lower part and then is fixedly connected with the pump shaft through the motor coupler and the pump coupler, the motor coupler is sleeved at the periphery of the motor shaft, the pump coupler is sleeved at the periphery of the pump shaft, the bottom of the motor base is fixedly connected with the top of the liquid inlet seat, the bearing cover is arranged at the center of the bottom of the motor base, the bearing seat is arranged in a through hole at the top of the liquid inlet seat, a first cavity is formed between the bearing cover and the bearing seat, the bottom of the bearing seat is fixedly connected with the sealing shell, a second cavity is formed between the bearing seat and the sealing shell, the bottom of the liquid inlet seat is fixedly connected with the top of the impeller shell, the bottom of the impeller shell is fixedly connected with the top of the box body, the bottom of the box body is fixedly connected with the top of the base, a cleaning bin is arranged in the base, a cleaning port extending out of one side of the base is arranged at one side of the cleaning bin, the feeding port is fixedly arranged at one side of the liquid inlet seat and is communicated with the inside of the liquid inlet seat, and the discharging port is fixedly arranged at the other side of the liquid inlet seat and is communicated with the inside of the liquid inlet seat; the method is characterized in that: and a negative impeller is also arranged below the sealing shell and externally sleeved on the periphery of the pump shaft, and the negative impeller is of a split structure or an integral structure.

Furthermore, when a split structure is selected, the negative impeller comprises a left impeller and a right impeller, the left impeller and the right impeller which are semicircular are sleeved on the periphery of the pump shaft through a middle through hole after being assembled together, the left impeller and the right impeller both comprise impeller bodies, blades are fixedly arranged on the tops of the impeller bodies, bosses are fixedly arranged on the bottoms of the impeller bodies, mounting holes are formed in the bosses, and external fixing pieces penetrate through the mounting holes to fix the left impeller and the right impeller on the periphery of the pump shaft; and the assembling surface of the left and right lobes is also provided with a positioning head and a positioning groove which are matched with each other in a positioning way.

Further, the second cavity internal packing has lubricating oil, and the second cavity transversely stretches out and is provided with the oil duct and the lower oil duct that go up that communicate with the second cavity, goes up the oil duct and connects the pipe that oils rather than the intercommunication, and the lower oil pipe that connects rather than the intercommunication is connected to the lower oil duct, and the outer end of going up oil pipe is connected with the upper conversion head, and the outer end of lower oil pipe is connected with down the conversion head, is connected with the observation tube between upper conversion head and the lower conversion head.

Further, a nut and a bearing are arranged inside the first cavity, the nut is sleeved on the periphery of the pump shaft and located at the top of the bearing, and the inner ring of the bearing is sleeved on the periphery of the pump shaft and the outer ring of the bearing is abutted to the hole wall of the center of the top of the bearing seat.

Further, a shaft sleeve and a sealing ring are arranged inside the second cavity, the shaft sleeve and the sealing ring are sleeved on the periphery of the pump shaft, and the shaft sleeve is located at the top of the sealing ring.

Furthermore, an oil filling port is arranged at the top of the bearing cover, and an oil through hole for communicating the first cavity with the second cavity is formed in the bottom of the bearing seat.

Furthermore, the upper oil pipe, the lower oil pipe and the observation pipe are made of transparent materials respectively.

Further, in particular, one or more layers of impellers are arranged inside the impeller shell.

Furthermore, an adjusting opening communicated with the interior of the feeding opening is vertically arranged above the feeding opening; and a vent hole communicated with the inside of the discharge hole is transversely arranged on one side of the discharge hole in a stretching mode, and a sealing gasket is arranged on the vent hole.

Further, the position of the feeding port is higher than that of the discharging port.

Compared with the prior art, the utility model has the following beneficial effects:

1) the utility model provides a vertical self-priming pump, wherein a negative impeller is arranged below a sealing shell and externally sleeved on the periphery of a pump shaft while the sealing shell realizes sealing, so that external pressure of positive pressure on a mechanical seal is reduced, a pumping medium (such as working liquid of water, chemical raw materials and the like) cannot generate positive pressure on the mechanical seal along the axial direction, the mechanical seal is in a negative pressure state during working, and therefore, the leaked pumping medium cannot enter a sealing chamber, so that the lubricating oil is emulsified and diluted after oil and water are mixed, the lubrication of a bearing is influenced, and the service life of a pump body is influenced.

2) The utility model provides a vertical self-priming pump, which replaces the mode of feeding from the lower part and discharging from the upper part with the mode of feeding from the upper part and discharging from the lower part in the prior art, thereby not only avoiding the impact on a sealing shell and a bearing seat caused by the pumped liquid when the pumped liquid goes upwards, but also reducing the risk of pollution caused by the pumped liquid entering the sealing shell and the bearing seat.

3) The utility model provides a vertical self-priming pump, which is characterized in that an upper oil channel and a lower oil channel which are communicated with a second cavity are transversely arranged in a stretching manner, the upper oil channel is connected with an upper oil pipe communicated with the upper oil channel, the lower oil channel is connected with a lower oil pipe communicated with the lower oil channel, the outer end of the upper oil pipe is connected with an upper conversion head, the outer end of the lower oil pipe is connected with a lower conversion head, an observation pipe is connected between the upper conversion head and the lower conversion head, and the upper oil pipe, the lower oil pipe and the observation pipe are respectively made of transparent materials which are convenient to observe, so that an external worker can directly know the use condition of internal lubricating oil through the liquid levels in the upper oil pipe, the lower oil pipe and the observation pipe in real time, the lubricating oil can be added in time, and the self-priming pump is ensured to have enough service life.

Drawings

FIG. 1 is a schematic diagram of a vertical self-priming pump according to the present invention;

FIG. 2 is a structural assembly view of the negative impeller of the present invention;

FIG. 3 is a structural division view of the negative impeller of the present invention;

FIG. 4 is a schematic view of the location of the bearing cap, bearing seat, and seal housing of the present invention.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and will therefore make the scope of the utility model more clearly and clearly defined.

Fig. 1-2 show a vertical self-priming pump according to the present invention.

The specific technical scheme is as follows:

a vertical self-priming pump comprises a motor 1, a motor base support 2, a motor shaft 3, a motor base 4, a motor coupler 5, a pump coupler 6, a bearing cover 7, a bearing seat 8, a sealing shell 9, a liquid inlet seat 10, an impeller shell 11, a box body 12, a base 13, a cleaning bin 14, a cleaning port 15, a feeding port 16, a discharging port 17 and a pump shaft 18; wherein, the motor 1 is fixedly arranged at the top of the motor base support 2, the bottom of the motor base support 2 is fixedly connected with the top of the motor base 4, the motor shaft 3 sequentially passes through the motor base support 2 and the motor base 4 from the lower part and then is fixedly connected with the pump shaft 18 through the motor coupler 5 and the pump coupler 6, the motor coupler 5 is sleeved on the periphery of the motor shaft 3, the pump coupler 6 is sleeved on the periphery of the pump shaft 18, the bottom of the motor base 4 is fixedly connected with the top of the liquid inlet base 10, the bearing cover 7 is arranged at the center of the bottom of the motor base 4, the bearing base 8 is arranged in a through hole at the top of the liquid inlet base 10, a first cavity A is formed between the bearing cover 7 and the bearing base 8, the bottom of the bearing base 8 is fixedly connected with the sealing shell 9, a second cavity B is formed between the bearing base 8 and the sealing shell 9, the bottom of the liquid inlet base 10 is fixedly connected with the top of the impeller shell 11, the bottom of the impeller shell 11 is fixedly connected with the top of the box body 12, the bottom of the box body 12 is fixedly connected with the top of the base 13, a cleaning bin 14 is arranged inside the base 13, a cleaning port 15 extending out of one side of the base 13 is arranged on one side of the cleaning bin 14, a feeding port 16 is fixedly arranged on one side of the liquid inlet seat 10 and is communicated with the inside of the liquid inlet seat 10, and a discharging port 17 is fixedly arranged on the other side of the liquid inlet seat 10 and is communicated with the inside of the liquid inlet seat 10;

the pump is characterized in that a negative impeller 9-3 is further arranged below the sealing shell 9 and outside the pump shaft 18, and a negative impeller is further arranged below the sealing shell and outside the pump shaft to reduce positive pressure to the external pressure of the mechanical seal, so that pumping media (such as working liquid such as water and chemical raw materials) cannot generate positive pressure to the mechanical seal upwards along the axial direction, the mechanical seal is in a negative pressure state during working, the leaked pumping media cannot enter a sealing chamber, the oil and water are mixed, emulsified and diluted lubricating oil is caused to affect bearing lubrication, and the service life of a pump body is further influenced.

The pumped liquid can be blocked by the rotating negative impeller before entering the sealing shell and the bearing seat to cause pollution, so that the risk of entering the sealing shell and the bearing seat is further reduced;

specifically, in the technical solution provided in this embodiment, the negative impeller 9-3 is configured as a split left-lobe wheel 9-3A and a split right-lobe wheel 9-3B structure, so as to facilitate assembly, disassembly, cleaning, replacement and maintenance, the semicircular left-lobe wheel 9-3A and the semicircular right-lobe wheel 9-3B are assembled together and then sleeved on the outer circumference of the pump shaft 18 through a middle through hole 9-34, the left-lobe wheel 9-3A and the semicircular right-lobe wheel 9-3B both include a wheel body 9-31, a blade 9-32 is fixedly disposed on the top of the wheel body 9-31, a boss 9-33 is fixedly disposed on the bottom of the wheel body 9-31, the boss is used for connecting the left-lobe wheel and the right-lobe wheel, a mounting hole 9-35 is formed inside the boss 9-33, and an external fixing member (e.g., a bolt and a nut that are engaged with each other) passes through the mounting hole 9-35, thereby implementing the left-lobe wheel 9-3A and the right lobe 9-3B are fixed on the periphery of the pump shaft 18; positioning heads 9-36 and positioning grooves 9-37 which are matched in positioning are further arranged on the assembling surfaces of the left valve 9-3A and the right valve 9-3B, the positioning heads 9-36 of the left valve 9-3A extend into the positioning grooves 9-37 of the right valve 9-3B at the corresponding positions, and the positioning heads 9-36 of the right valve 9-3B extend into the positioning grooves 9-37 of the left valve 9-3A at the corresponding positions, so that the positioning assembly between the left valve 9-3A and the right valve 9-3B is realized.

Preferably, the split left and right lobes 9-3A and 9-3B can be arranged in a symmetrical structure so as to facilitate manufacturing, molding, replacement and maintenance; of course, the installation and positioning can be also arranged in an asymmetrical (complete circular ring shape after being assembled) split structure for convenience.

Specifically, as a further preferable scheme of this embodiment, the second cavity B is filled with lubricating oil, the second cavity B transversely extends to be provided with an upper oil passage 9-4 and a lower oil passage 9-5 which are communicated with the second cavity B, the upper oil passage 9-4 is connected with an upper oil pipe 9-6 communicated with the upper oil passage, the lower oil passage 9-5 is connected with a lower oil pipe 9-7 communicated with the lower oil passage, the outer end of the upper oil pipe 9-6 is connected with an upper conversion head 9-8, the outer end of the lower oil pipe 9-7 is connected with a lower conversion head 9-9, and an observation pipe 9-10 is connected between the upper conversion head 9-8 and the lower conversion head 9-9; make outside staff direct through last oil pipe, oil pipe down and observe intraductal liquid level can learn the in service behavior of inside lubricating oil in real time to can in time add lubricating oil, guarantee that the self priming pump possesses sufficient life. As a further optimization, the upper oil pipe 9-6, the lower oil pipe 9-7 and the observation pipe 9-10 are made of transparent materials, so that external workers can directly know the use condition of internal lubricating oil in real time through the liquid levels in the upper oil pipe, the lower oil pipe and the observation pipe, lubricating oil can be added in time, and the self-sucking pump is guaranteed to have enough service life. In addition, it is preferable that the upper oil pipe 9-6, the lower oil pipe 9-7 and the observation pipe 9-10 have different transparency degrees and specifically distinguish the position of the internal lubricating oil, and the outer portions of the upper oil pipe 9-6, the lower oil pipe 9-7 and the observation pipe 9-10 are provided with scale marks so as to specifically determine the position and the amount of the internal lubricating oil, and the upper oil pipe 9-6, the lower oil pipe 9-7, the upper conversion head 9-8, the lower conversion head 9-9 and the observation pipe 9-10 are connected with each other by a screw with a sealing member, for example, so as to facilitate later loading, unloading, cleaning and maintenance.

Specifically, as a further preferable scheme of this embodiment, a nut 7-1 and a bearing 8-1 are disposed inside the first cavity a, the nut 7-1 is sleeved on the outer periphery of the pump shaft 18 and located at the top of the bearing 8-1, an inner ring of the bearing 8-1 is sleeved on the outer periphery of the pump shaft 18, an outer ring of the bearing 8-1 abuts against a hole wall of the center of the top of the bearing seat 8, the nut 7-1 and the bearing 8-1 effectively support and reliably seal the internal pump shaft 18, and liquid in the pump is prevented from entering the first cavity a from the second cavity B to dilute or contaminate internal lubricating oil.

Specifically, as a further preferable scheme of this embodiment, a shaft sleeve 9-1 and a sealing ring 9-2 are disposed inside the second cavity B, the shaft sleeve 9-1 and the sealing ring 9-2 are sleeved on the outer periphery of the pump shaft 18, and the shaft sleeve 9-1 is located at the top of the sealing ring 9-2, so that the shaft sleeve 9-1 and the sealing ring 9-2 effectively support and reliably seal the internal pump shaft 18, and liquid in the pump is prevented from entering the second cavity B to dilute or contaminate internal lubricating oil.

Specifically, as a further preferable scheme of the embodiment, one or more layers of impellers 11-1 are arranged inside the impeller shell 11, and the impellers 11-1 are driven by a motor to rotate so as to pump the liquid from the feeding port to the discharging port.

Specifically, as a further preferable scheme of the present embodiment, an oil filling port 7-2 is provided at the top of the bearing cover 7, an oil through hole 8-2 communicating the first cavity with the second cavity is provided at the bottom of the bearing seat 8, lubricating oil is filled into the first cavity a through the oil filling port 7-2, and the entered lubricating oil flows into the second cavity B through the oil through hole 8-2.

Specifically, as a further preferable scheme of this embodiment, an adjusting port 16-1 communicated with the inside of the material inlet 16 is vertically arranged above the material inlet 16, and functions of pre-cleaning, post-cleaning, constant temperature maintenance and the like on the inside of the liquid inlet 10 can be realized through the adjusting port 16-1 connected with an external controller.

Specifically, as a further preferred scheme of this embodiment, a vent hole 17-1 communicated with the inside of the discharge port 17 is transversely formed in one side of the discharge port 17 in an extending manner, a sealing gasket is arranged on the vent hole 17-1, and gas can be introduced through the vent hole 17-1 after the later stage of pumping liquid is finished so as to clean the internal working environment.

Specifically, as the further preferred scheme of this embodiment, pan feeding mouth 16's position is higher than the position of discharge gate 17, and the mode of adopting the ejection of compact of below feeding top is replaced with the mode of the ejection of compact of top pan feeding below among the prior art, had both avoided the liquid of pump income to go upward the impact that causes sealed shell and bearing frame, also reduced the risk that the liquid of pump income caused the pollution inside sealed shell and the bearing frame simultaneously.

During specific work, liquid enters the liquid inlet seat 10 through the feeding port 16, flows downwards to the inside of the impeller shell 11 from the liquid inlet seat 10 under the action of self gravity, and is pumped to the discharge port from the impeller shell 11 through the rotation of the impeller 11-1 driven by the motor and finally discharged.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. A vertical self-priming pump comprises a motor (1), a motor bottom support (2), a motor shaft (3), a motor base (4), a motor coupler (5), a pump coupler (6), a bearing cover (7), a bearing seat (8), a sealing shell (9), a liquid inlet seat (10), an impeller shell (11), a box body (12), a base (13), a material cleaning bin (14), a material cleaning opening (15), a material feeding opening (16), a material discharging opening (17) and a pump shaft (18); wherein, the motor (1) is fixedly arranged at the top of the motor base (2), the bottom of the motor base (2) is fixedly connected with the top of the motor base (4), the motor shaft (3) sequentially passes through the motor base (2) and the motor base (4) from the lower part and then is fixedly connected with the pump shaft (18) through the motor coupler (5) and the pump coupler (6), the motor coupler (5) is sleeved on the periphery of the motor shaft (3), the pump coupler (6) is sleeved on the periphery of the pump shaft (18), the bottom of the motor base (4) is fixedly connected with the top of the liquid inlet base (10), the bearing cover (7) is arranged at the center of the bottom of the motor base (4), the bearing seat (8) is arranged in a through hole at the top of the liquid inlet base (10), a first cavity (A) is formed between the bearing cover (7) and the bearing seat (8), the bottom of the bearing seat (8) is fixedly connected with the sealing shell (9), a second cavity (B) is formed between the bearing seat (8) and the sealing shell (9), the bottom of the liquid inlet seat (10) is fixedly connected with the top of the impeller shell (11), the bottom of the impeller shell (11) is fixedly connected with the top of the box body (12), the bottom of the box body (12) is fixedly connected with the top of the base (13), a cleaning bin (14) is arranged inside the base (13), a cleaning port (15) extending out of one side of the base (13) is arranged on one side of the cleaning bin (14), the material inlet (16) is fixedly arranged on one side of the liquid inlet seat (10) and communicated with the inside of the liquid inlet seat (10), and the material outlet (17) is fixedly arranged on the other side of the liquid inlet seat (10) and communicated with the inside of the liquid inlet seat (10); the method is characterized in that: and a negative impeller (9-3) is also arranged below the sealing shell (9) and is sleeved on the periphery of the pump shaft (18), and the negative impeller is of a split structure or an integral structure.

2. The vertical self-primer pump of claim 1 wherein: when a split type structure is selected, the negative impeller (9-3) comprises a left impeller (9-3A) and a right impeller (9-3B), the semicircular left impeller (9-3A) and the semicircular right impeller (9-3B) are assembled together and then sleeved on the periphery of the pump shaft (18) through a middle through hole (9-34), the left impeller (9-3A) and the semicircular right impeller (9-3B) both comprise impeller bodies (9-31), blades (9-32) are fixedly arranged at the top of the impeller bodies (9-31), bosses (9-33) are fixedly arranged at the bottom of the impeller bodies (9-31), mounting holes (9-35) are formed in the bosses (9-33), and an external fixing piece penetrates through the mounting holes (9-35) to realize that the left impeller (9-3A) and the right impeller (9-3B) are arranged outside the pump shaft (18) Fixing the week; the assembling surface of the left flap wheel (9-3A) and the right flap wheel (9-3B) is also provided with a positioning head (9-36) and a positioning groove (9-37) which are matched in a positioning way.

3. The vertical self-primer pump of claim 1 wherein: lubricating oil is filled in the second cavity (B), an upper oil duct (9-4) and a lower oil duct (9-5) which are communicated with the second cavity (B) transversely extend out of the second cavity (B), the upper oil duct (9-4) is connected with an upper oil pipe (9-6) communicated with the upper oil duct, the lower oil duct (9-5) is connected with a lower oil pipe (9-7) communicated with the lower oil duct, the outer end of the upper oil pipe (9-6) is connected with an upper conversion head (9-8), the outer end of the lower oil pipe (9-7) is connected with a lower conversion head (9-9), and an observation pipe (9-10) is connected between the upper conversion head (9-8) and the lower conversion head (9-9).

4. The vertical self-primer pump of claim 1 wherein: the pump shaft structure is characterized in that a nut (7-1) and a bearing (8-1) are arranged inside the first cavity (A), the nut (7-1) is sleeved on the periphery of the pump shaft (18) and located at the top of the bearing (8-1), the inner ring of the bearing (8-1) is sleeved on the periphery of the pump shaft (18), and the outer ring of the bearing (8-1) is abutted to the hole wall of the center of the top of the bearing seat (8).

5. The vertical self-primer pump of claim 1 wherein: a shaft sleeve (9-1) and a sealing ring (9-2) are arranged inside the second cavity (B), the shaft sleeve (9-1) and the sealing ring (9-2) are sleeved on the periphery of the pump shaft (18), and the shaft sleeve (9-1) is located at the top of the sealing ring (9-2).

6. The vertical self-primer pump of claim 1 wherein: an oil filling port (7-2) is formed in the top of the bearing cover (7), and an oil through hole (8-2) for communicating the first cavity with the second cavity is formed in the bottom of the bearing seat (8).

7. The vertical self-primer pump of claim 3 wherein: the upper oil pipes (9-6), the lower oil pipes (9-7) and the observation pipes (9-10) are made of transparent materials respectively.

8. The vertical self-primer pump of claim 1 wherein: specifically, one or more layers of impellers (11-1) are arranged inside the impeller shell (11).

9. The vertical self-primer pump of claim 1 wherein: an adjusting opening (16-1) communicated with the interior of the feeding opening (16) is vertically arranged above the feeding opening (16); and a vent hole (17-1) communicated with the interior of the discharge hole (17) transversely extends from one side of the discharge hole (17), and a sealing gasket is arranged on the vent hole (17-1).

10. The vertical self-primer pump of claim 1 wherein: the position of the feeding port (16) is higher than that of the discharging port (17).

Images