CN109488609B

CN109488609B - Automatic liquid filling centrifugal pump

Info

Publication number: CN109488609B
Application number: CN201910041094.XA
Authority: CN
Inventors: 汪卫平; 唐子一; 其他发明人请求不公开姓名
Original assignee: Anhui Kaite Pump Co ltd
Current assignee: ANHUI KAITE PUMP Co.,Ltd.
Priority date: 2019-01-16
Filing date: 2019-01-16
Publication date: 2020-11-10
Anticipated expiration: 2039-01-16
Also published as: CN109488609A

Abstract

The invention belongs to the field of centrifugal pumps, and particularly relates to an automatic liquid filling centrifugal pump. Including the pump body, pump body left side wall intercommunication has the drinking-water pipe, pump body right side wall runs through and is provided with the driving shaft, is located inside the pump body the impeller has been cup jointed on the driving shaft, and the driving shaft can adopt belt drive or the mode that directly links firmly with the output shaft of motor makes the driving shaft rotate, and then drives the impeller, utilizes the effect of centrifugal force to carry away the filling again with liquid from the drinking-water pipe suction, regulating spring has been cup jointed on the driving shaft. By adding the fan blades, the driven shaft and the adjusting spring, when the pump body starts to work, the driving shaft and the driven shaft can be fixed to drive the fan blades to rotate, and liquid is quickly filled in the pump body by utilizing negative pressure generated by the fan blades, so that the working procedure is simplified, and the labor amount is reduced.

Description

Automatic liquid filling centrifugal pump

Technical Field

The invention belongs to the field of centrifugal pumps, and particularly relates to an automatic liquid filling centrifugal pump.

Background

Centrifugal pumps operate by causing water to move centrifugally as a result of the rotation of an impeller. 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 rotate at a high speed, the water is thrown to the outer edge of the impeller to be thrown into a water pressure pipeline of the water pump through a flow channel of the volute-shaped pump shell.

When milk and the like are filled through the centrifugal pump, air is easy to exist in the filled dairy products when the centrifugal pump starts to work, the dairy products are easy to generate foam in the transportation process, and the taste of the dairy products is influenced.

1. According to the automatic liquid filling centrifugal pump, the fan blades, the driven shaft and the adjusting spring are added, when the pump body starts to work, the driving shaft and the driven shaft can be fixed to drive the fan blades to rotate, liquid is automatically filled in the pump body by utilizing negative pressure generated by the fan blades, the process is simplified, and the labor amount is reduced.

2. According to the automatic liquid filling centrifugal pump, the hourglass-shaped upper hole, the limiting rod, the jack and the return spring are used, so that the driven rod can be fixed and can be automatically separated after the external force is removed, and the use is flexible.

3. According to the automatic liquid filling centrifugal pump, the moving plate, the air cylinder and the U-shaped air pipe are matched with each other, the rubber convex bag can be fixed through the connecting plate moving plate, the fixing effect is good, and automatic recovery can be achieved.

4. According to the automatic liquid filling centrifugal pump, the fixing device and the frustum pyramid block are adopted, the fixing device pushes the elastic bag to expand under the action of compressed air generated by the moving plate and the U-shaped air pipe, the rotating plate is pushed to extrude and fix the frustum pyramid block, and the frustum pyramid block can be automatically restored.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an automatic liquid filling centrifugal pump, which can fix a driving shaft and a driven shaft to drive blades to rotate when a pump body just starts to work by adding the blades, the driven shaft and an adjusting spring, and can automatically fill liquid in the pump body by utilizing negative pressure generated by the blades so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an automatic liquid filling centrifugal pump comprises a pump body, wherein a left side wall of the pump body is communicated with a water pumping pipe, a right side wall of the pump body is provided with a driving shaft in a penetrating manner, the driving shaft inside the pump body is sleeved with an impeller, the driving shaft can rotate by adopting a belt transmission manner or a manner of being directly fixedly connected with an output shaft of a motor so as to drive the impeller, liquid is pumped in from the water pumping pipe by utilizing the action of centrifugal force and then is conveyed out for filling, an adjusting spring is sleeved on the driving shaft, two ends of the adjusting spring are fixedly connected with connecting bearings, the two connecting bearings are respectively and fixedly connected with the right side wall of the impeller and the right side wall of the pump body, the adjusting spring does not obstruct the left and right movement of the driving shaft, a cushion is used for the separation and connection of a subsequent driving shaft and a driven shaft, the driven shaft gets into the upper hole and can use multiple fixed and the mode of separation, and the driving shaft can drive the driven shaft, and then drives the flabellum and rotate, and the flabellum right side forms the negative pressure, makes the solution of extraction extruded by the outside air and get into the pump body inside through the drinking-water pipe fast, has reduced the probability of pump body work output air earlier stage, the left top of driven shaft and bottom have all linked firmly the dead lever, two the dead lever terminal has all linked firmly the fixture block, the fixture block is established inside the ring channel, the fixed cover in driven shaft right side has cup jointed the flabellum, and when the driven shaft was taken the commentaries on classics, the driven shaft drove the dead lever, and the dead lever drove.

The top and the bottom of the right side of the driven shaft are both provided with a limiting hole, the limiting hole is internally provided with a return spring, one end of the return spring is fixedly connected with a limiting rod, the end part of the limiting rod is shaped like a hemisphere, when one end of the limiting rod, which is positioned outside the limiting groove, is shaped like a hemisphere, the limiting rod can conveniently pass through the hourglass-shaped upper hole, the other end of the return spring is fixedly connected with the driven shaft, the limiting rod can ascend or descend in the limiting hole under the action of external force under the action of the return spring, the upper hole is shaped like an hourglass, the diameter of the upper hole is gradually reduced from two ends to the middle part, the top and the bottom of the right end of the upper hole are both provided with inserting holes matched with the limiting rod, when the limiting rod passes through the middle part of the upper hole, the limiting rod is extruded to compress the return spring, and after the limiting rod passes through the narrowest part of the, in the time quantum of driving shaft rotation a week, the one end of gag lever post hemisphere can enter into the jack, can make the driving shaft drive the driven shaft finally and rotate.

As a preferred technical scheme of the invention, a rubber convex bag is bonded at the right end of the driven shaft, the rubber convex bag can be flattened after extrusion so as to increase the contact area of the rubber convex bag and a moving plate, a plurality of balls are arranged inside the rubber convex bag, the moving plate matched with the inner diameter of the upper hole is arranged inside the upper hole, when the driving shaft rotates, the left side of the impeller is influenced by negative pressure, the impeller drives the driving shaft to move towards the left side, an adjusting spring is extended, the upper hole is sleeved outside the driven shaft, the driven shaft pushes the moving plate to move, the right side surface of the moving plate is fixedly connected with a traction spring, the right side of the upper hole is communicated with a through hole, the right end of the through hole is communicated with a U-shaped air pipe, in the process of moving the moving plate to the right, air is pushed to enter the U-shaped air pipe through the through hole, the traction spring is compressed, the through hole and the U, the two limiting grooves are respectively positioned right above and below the upper hole.

The utility model discloses a pneumatic tire, including U type trachea, connecting plate, air cylinder, limiting groove, driving shaft, air cylinder, connecting plate, air cylinder level setting and its locating limiting groove are inside and its right-hand member and driving shaft fixed connection, enter into the inside compressed air of U type trachea and finally enter into the air cylinder, make the air cylinder extension, promote the protruding bag of rubber after the connecting plate will become flat and tightly extrude on the moving plate surface, realized the fixed to the driven shaft.

According to a preferred technical scheme of the invention, two ends of the U-shaped air pipe are communicated with fixing devices, each fixing device comprises an elastic bag, a rotating plate and a sawtooth folding plate, the rotating plate is bonded to the bottom of the elastic bag, the left end of the rotating plate is hinged to the driving shaft, the left end of the rotating plate can rotate downwards under the action of external force, the right end of the rotating plate is fixedly connected with the sawtooth folding plate, the top end of the sawtooth folding plate is fixedly connected with the driving shaft, the sawtooth folding plate can extend downwards to the right under the action of external force, the right end of the driven shaft is fixedly connected with a frustum block, the rotating plate can be extruded on an inclined plane of the frustum block, and the driven shaft is fixed by extruding the frustum block.

As a preferable technical solution of the present invention, the inner wall of the rubber convex bag is provided with a plurality of article holding grooves, and when the moving plate squeezes and flattens the rubber convex bag, a part of the balls enter the article holding grooves, so that mutual rolling between the balls is reduced, and the rubber convex bag is more tightly fixed to the balls.

As a preferable technical solution of the present invention, the connection bearing is one of a tapered roller bearing and a self-aligning ball bearing, and the tapered roller bearing and the self-aligning ball bearing have a transverse movement while the inner ring rotates, so that the amplitude of the movement of the driving shaft pulled by the adjusting spring is small, thereby improving the effect of practical use.

The invention has the technical effects and advantages that:

1. according to the automatic liquid filling centrifugal pump, the fan blades, the driven shaft and the adjusting spring are added, when the pump body starts to work, the driving shaft and the driven shaft can be fixed to drive the fan blades to rotate, liquid is quickly filled in the pump body by utilizing negative pressure generated by the fan blades, the working procedure is simplified, and the labor amount is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a first type of driving and driven shaft connection of the present invention;

FIG. 3 is a side sectional view A-A of FIG. 2 of the present invention;

FIG. 4 is a schematic view of a second driving shaft and a driven shaft according to the present invention;

FIG. 5 is a schematic view of the structure of the rubber pouch of the present invention;

FIG. 6 is a schematic view of the connection between the driving shaft and the driven shaft according to the third embodiment of the present invention.

In the figure: 1. a pump body; 2. a water pumping pipe; 3. a drive shaft; 4. an impeller; 5. adjusting the spring; 6. connecting a bearing; 7. an upper hole; 8. an annular groove; 9. a driven shaft; 10. fixing the rod; 11. a clamping block; 12. a fan blade; 13. a limiting hole; 14. a return spring; 15. a limiting rod; 16. a jack; 17. a rubber convex bag; 18. a ball bearing; 19. moving the plate; 20. a tension spring; 21. a through hole; 22. a U-shaped air pipe; 23. a limiting groove; 24. a cylinder; 25. a connecting plate; 26. a fixing device; 261. an elastic bag; 262. rotating the plate; 263. a saw-tooth folded plate; 27. a frustum block; 28. a storage groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in figure 1, the centrifugal pump for automatically filling liquid comprises a pump body 1, wherein the left side wall of the pump body 1 is communicated with a water pumping pipe 2, the right side wall of the pump body 1 is provided with a driving shaft 3 in a penetrating manner, the driving shaft 3 positioned in the pump body 1 is sleeved with an impeller 4, the driving shaft 3 can rotate by adopting a belt transmission manner or a manner of being directly fixedly connected with an output shaft of a motor so as to drive the impeller 4, liquid is pumped in from the water pumping pipe 2 by utilizing the action of centrifugal force and then is conveyed out for filling, the driving shaft 3 is sleeved with an adjusting spring 5, two ends of the adjusting spring 5 are fixedly connected with connecting bearings 6, the two connecting bearings 6 are respectively and fixedly connected with the right side of the impeller 4 and the inner wall of the right side of the pump body 1, the adjusting spring 5 does not obstruct the left and right movement of the driving shaft 3, the left end of the driving shaft 3 is provided with an upper hole 7, the inner wall of the left side of the pump body 1 is provided with a ring groove 8, the left side of the driving shaft 3 is provided with a driven shaft 9, the driven shaft 9 enters the upper hole 7 and can be fixed and separated in various ways, the top and the bottom of the left side of the driven shaft 9 are fixedly connected with fixing rods 10, the two fixing rods 10 are fixedly connected with a clamping block 11 at the end, the clamping block 11 is arranged inside the ring groove 8, the right side of the driven shaft 9 is fixedly sleeved with a fan blade 12, when the driving shaft 3 rotates the driven shaft 9, the driven shaft 9 drives the fixing rods 10, the fixing rods 10 drive the clamping block 11 to rotate in the ring groove 8, so that the left end support is realized, the driving shaft 3 supports the right end of the driven shaft 9, the driving shaft, the pumped solution rapidly enters the pump body 1 through the water pumping pipe 2, and the impeller 4 can suck the liquid by means of the centrifugal force of the impeller.

As shown in fig. 2-3, in a first connection mode of the driving shaft 3 and the driven shaft 9 according to the preferred embodiment of the present invention, the top and the bottom of the right side of the driven shaft 9 are both provided with a limiting hole 13, a return spring 14 is provided inside the limiting hole 13, one end of the return spring 14 is fixedly connected to a limiting rod 15, the end of the limiting rod 15 is shaped like a hemisphere, when one end of the limiting rod 15 located outside the limiting groove 23 is shaped like a hemisphere, the limiting rod 15 can conveniently pass through the hourglass-shaped upper hole 7, the other end of the return spring 14 is fixedly connected to the driven shaft 9, the limiting rod 15 can be raised or lowered in the limiting hole 13 when an external force is applied under the action of the return spring 14, the upper hole 7 is shaped like an hourglass, the diameter of the upper hole 7 gradually decreases from two ends to the middle part, the top and the bottom of the upper hole 7 are both provided with insertion holes 16 matched with the limiting rod 15, when gag lever post 15 passes through last position hole 7 middle part, gag lever post 15 is extruded, make return spring 14 compress, after the narrowest department through last position hole 7, return spring 14 promotes gag lever post 15 and shifts out spacing hole 13, in the time quantum of driving shaft 3 rotation a week, the one end of gag lever post 15 hemispheroid can enter into jack 16, finally can make driving shaft 3 drive driven shaft 9 rotate, when extracting, the arc surface on 7 middle part right sides in last position hole can make things convenient for gag lever post 15 to shift out from its inside, make things convenient for driving shaft 3 and driven shaft 9 to separate.

As shown in fig. 4, according to a second connection mode of the driving shaft 3 and the driven shaft 9, a rubber convex bag 17 is bonded at the right end of the driven shaft 9, the rubber convex bag 17 can be flattened after being squeezed, so that the contact area between the rubber convex bag and the moving plate 19 is enlarged, a plurality of balls 18 are arranged inside the rubber convex bag 17, the moving plate 19 matched with the inner diameter of the upper hole 7 is placed inside the upper hole 7, when the driving shaft 3 rotates, the left side of the impeller 4 is affected by negative pressure, the impeller 4 drives the driving shaft 3 to move towards the left side, the adjusting spring 5 is extended, the upper hole 7 is sleeved outside the driven shaft 9, the driven shaft 9 pushes the moving plate 19 to move, the right side of the moving plate 19 is fixedly connected with a traction spring 20, the right side of the upper hole 7 is communicated with the moving plate 21, the right end of the through hole 21 is communicated with a U-shaped air pipe 22, and air is pushed to enter, the traction spring 20 is compressed, the through hole 21 and the U-shaped air pipe 22 are both positioned on the driving shaft 3, two limiting grooves 23 are formed in the positions, contacted with the top and the bottom of the upper hole 7, of the driving shaft 3, and the two limiting grooves 23 are respectively positioned right above and below the upper hole 7.

The utility model discloses a pneumatic control device, including U type trachea 22, cylinder 24, connecting plate 24, air cylinder 24 and driving shaft 3, the output of cylinder 24 all is connected with cylinder 24, connecting plate 25 has been linked firmly, connecting plate 25 cup joints on driven shaft 9, cylinder 24 level sets up and it locates inside 23 spacing grooves and its right-hand member and driving shaft fixed connection, and the compressed air who enters into U type trachea 22 finally enters into cylinder 24, makes cylinder 24 extension, promotes the protruding bag 17 of rubber after the connecting plate 25 will become flat and tightly extrudes on movable plate 19 surface, has realized the fixed to driven shaft 9.

As shown in fig. 6, a third connection mode of a driving shaft 3 and a driven shaft 9 according to a preferred embodiment of the present invention is an automatic liquid filling centrifugal pump according to the present invention, wherein two ends of the U-shaped air tube 22 are both communicated with a fixing device 26, the fixing device 26 includes an elastic bag 261, a rotating plate 262 and a sawtooth folded plate 263, the bottom of the elastic bag 261 is bonded with the rotating plate 262, the left end of the rotating plate 262 is hinged to the driving shaft 3, the rotating plate 262 can rotate downward at the left end under the action of external force, the right end of the rotating plate 262 is fixedly connected with the sawtooth folded plate 263, the top end of the sawtooth folded plate 263 is fixedly connected with the driving shaft 3, the right end of the driven shaft 9 is fixedly connected with a frustum block 27, the left side of the impeller 4 is affected by negative pressure, the impeller 4 drives the driving shaft 3 to move to the left side, the frustum block 27 pushes the moving plate 19 to move to the right, pushing air enters the U-shaped air tube 22 through the through, the sawtooth folded plate 263 is pushed to extend towards the surface of the frustum convex block 27, the rotating plate 262 can be extruded on the inclined surface of the frustum block 27, and the driven shaft 9 is fixed by extruding the frustum block 27.

As shown in fig. 5, in the centrifugal pump for automatically filling liquid according to the present invention, a plurality of storage slots 28 are formed in the inner wall of the rubber convex bag 17, and when the moving plate 19 presses and flattens the rubber convex bag 17, a part of the balls 18 enter the storage slots 28, so that mutual rolling between the balls 18 is reduced, and the rubber convex bag 17 and the balls 18 are more tightly fixed.

As shown in fig. 1, in the automatic liquid filling centrifugal pump according to the present invention, the connection bearing 6 is one of a tapered roller bearing and a self-aligning ball bearing, and since the driving shaft 3 is to be rotated and the impeller 4 needs to be pushed back to the original position by the adjustment spring 5, when the adjustment spring 5 is installed, the horizontal movement of the driving shaft 3 can be realized while the inner rings of a pair of tapered roller bearings or self-aligning ball bearings can be pressed.

When the pump works, when the driving shaft 3 rotates, the inside of the pump body 1 is filled with air, negative pressure is formed on the left side of the impeller 4, air with high pressure on the right side pushes the impeller 4 to move to the left, the driving shaft 3 is pushed to be sleeved on the outer side of the driven shaft 9 and fixed with the driven shaft 9 to drive the driven shaft 9 to rotate, air on the left side of the fan blade 12 is emptied, negative pressure is formed on the left side of the fan blade 12, so that pumped solution can quickly enter the inside of the pump body 1 through the water pumping pipe 2, the impeller 4 can absorb liquid by relying on the centrifugal force of the impeller 4, after the pump body 1 is filled with the liquid, the adjusting spring 5 pulls the driving shaft 3 to return to the original position, the driving shaft 3 is separated from the driven shaft 9, the power of the pump body 1 during working is not affected, the driving shaft 3 is fixed and separated from the, after the limiting rod 15 passes through the narrowest part of the upper hole 7, the return spring 14 pushes the limiting rod 15 to move out of the limiting hole 13, one end of a hemisphere of the limiting rod 15 can enter the jack 16 in a period of time when the driving shaft 3 rotates for a circle, after the pump body 1 is filled with liquid, the driving shaft 3 returns to the original position, one end of the hemisphere of the limiting rod 15 slides out of the jack 16 and finally returns to the original position through the narrowest part of the upper hole 7, so that the power of the pump body 1 during working is not influenced, when the upper hole 7 is set to be a cylindrical mode, the movable plate 19 is arranged in the upper hole 7, when the driving shaft 3 moves right and is sleeved outside the driven shaft 9, one end of the driven shaft 9 can be fixedly connected with the rubber convex bag 17, after the rubber convex bag 17 is extruded and deformed by the movable plate 19, in the process that the movable plate 19 continues to move right, air is pushed to enter the U-shaped air pipe 22 through the through hole, the cylinder 24 is extended to push the connecting plate 25 to tightly extrude the flattened rubber convex bag 17 on the surface of the movable plate 19, when the driving shaft 3 returns, the rubber convex bag 17 is restored, the traction spring 20 pushes the movable plate 19 to be restored, the cylinder 24 drives the connecting plate 25 to return to the original position, and the mode that the air in the U-shaped air pipe 22 pushes the fixing device 26 to fix the frustum pyramid block 27 can be adopted.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an automatic irritate liquid centrifugal pump, includes the pump body (1), its characterized in that: the pump body (1) left side wall intercommunication has drinking-water pipe (2), the pump body (1) right side wall runs through and is provided with driving shaft (3), be located inside the pump body (1) impeller (4) have been cup jointed on driving shaft (3), adjusting spring (5) both ends link firmly and connect bearing (6), two connect bearing (6) respectively with impeller (4) right side and pump body (1) right side inner wall fixed connection, driving shaft (3) left end has been seted up upper hole (7), pump body (1) left side inner wall has seted up ring channel (8), driven shaft (9) have been placed in driving shaft (3) left side, the left top and the bottom of driven shaft (9) have all linked firmly dead lever (10), two dead lever (10) terminal has all linked firmly fixture block (11), the clamping block (11) is arranged in the annular groove (8), and the right side of the driven shaft (9) is fixedly sleeved with a fan blade (12).

2. The automatic priming centrifugal pump of claim 1, wherein: spacing hole (13) have all been seted up to top and bottom on driven shaft (9) right side, spacing hole (13) inside all is equipped with return spring (14), return spring (14) one end has linked firmly gag lever post (15), the shape at gag lever post (15) top sets up to the hemispheroid, return spring (14) other end links firmly with driven shaft (9), the shape in last position hole (7) is described for the hourglass, the diameter in last position hole (7) diminishes to the middle part from both ends gradually, last position hole (7) right-hand member top and bottom all are equipped with jack (16) with gag lever post (15) assorted.

3. The automatic priming centrifugal pump of claim 1, wherein: driven shaft (9) right-hand member bonds and has protruding bag of rubber (17), protruding bag of rubber (17) inside is equipped with a plurality of balls (18), overhead hole (7) inside placed rather than internal diameter size assorted movable plate (19), movable plate (19) right flank has linked firmly tractive spring (20), overhead hole (7) right side intercommunication has through-hole (21), through-hole (21) right-hand member intercommunication has U type trachea (22), through-hole (21) and U type trachea (22) all are located driving shaft (3), two spacing grooves (23) have been seted up with the position of overhead hole (7) top and bottom contact on driving shaft (3), two spacing grooves (23) are located overhead hole (7) respectively and under.

4. An automatic priming centrifugal pump according to claim 3, characterized in that: both ends of the U-shaped air pipe (22) are connected with air cylinders (24), the output end of each air cylinder (24) is fixedly connected with a connecting plate (25), the connecting plates (25) are sleeved on the driven shaft (9), the air cylinders (24) are horizontally arranged and arranged in the limiting grooves (23) and the right ends of the air cylinders are fixedly connected with the driving shaft (3).

5. An automatic priming centrifugal pump according to claim 3, characterized in that: u type trachea (22) both ends all communicate with fixing device (26), fixing device (26) include elasticity bag (261), commentaries on classics board (262) and sawtooth folded plate (263), elasticity bag (261) bottom bonds and has changeed board (262), it is articulated with driving shaft (3) to change board (262) left end, it has sawtooth folded plate (263) to change board (262) right-hand member to link firmly, sawtooth folded plate (263) top links firmly with driving shaft (3), driven shaft (9) right-hand member has linked firmly arris platform piece (27).

6. An automatic priming centrifugal pump according to claim 3, characterized in that: the inner wall of the rubber convex bag (17) is provided with a plurality of storage grooves (28).

7. The automatic priming centrifugal pump of claim 1, wherein: the connecting bearing (6) is one of a tapered roller bearing and a self-aligning ball bearing.