CN210769352U

CN210769352U - Mixed flow pump with replaceable impeller

Info

Publication number: CN210769352U
Application number: CN201921198206.4U
Authority: CN
Inventors: 徐祝山; 徐鹏程
Original assignee: Gaoyou Dajiang Pump Industry Co ltd
Current assignee: Gaoyou Dajiang Pump Industry Co ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-06-16
Anticipated expiration: 2029-07-29

Abstract

The utility model discloses a mixed flow pump with replaceable impeller, which belongs to the technical field of mixed flow pumps, wherein one side of a pump body is provided with a motor, the output end of the motor is connected with a first pump shaft, a second pump shaft is arranged in the inner cavity of the first pump shaft in a sliding manner, two fixing blocks are arranged on the outer wall of the second pump shaft, one end of the second pump shaft, which is positioned outside the first pump shaft, is fixedly connected with the limiting shaft sleeve, an impeller shaft is inserted in the limiting shaft sleeve, a threaded sleeve is sleeved on the outer side of the impeller shaft, a disassembling ring is rotatably connected to the outer wall of the first pump shaft, the outer wall of the disassembling ring is fixedly connected with a disassembling rod, the side wall of the disassembling rod is fixedly connected with a disassembling block, just run through on the disassembling rod and be provided with the round pin axle, round pin axle both ends and delivery port inner wall fixed connection, the utility model has the advantages of quick and convenient change the impeller, the time of having practiced thrift has improved maintenance efficiency.

Description

Mixed flow pump with replaceable impeller

Technical Field

The utility model relates to a mixed flow pump technical field specifically is a mixed flow pump of removable impeller.

Background

A mixed flow pump is a pump between a centrifugal pump and an axial flow pump. The specific speed of the mixed flow pump is higher than that of the centrifugal pump and lower than that of the axial flow pump, and is generally between 300 and 500. Its lift is higher than the axial-flow pump, but the flow is smaller than the axial-flow pump and larger than the centrifugal pump. When the prime motor drives the impeller to rotate, the action on the liquid is centrifugal force and axial thrust, the centrifugal pump and the axial flow pump are integrated, and the liquid obliquely flows out of the impeller. It is therefore a pump between a centrifugal pump and an axial flow pump. The specific speed of the mixed flow pump is higher than that of the centrifugal pump and lower than that of the axial flow pump, and is generally between 300 and 500. Its lift is higher than the axial-flow pump, but the flow is smaller than the axial-flow pump and larger than the centrifugal pump.

The existing mixed flow pump is easy to damage an impeller when being used for a long time, is very troublesome when the impeller is replaced, and brings inconvenience to people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mixed flow pump of removable impeller to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a mixed flow pump with replaceable impellers comprises a pump body, wherein a motor is arranged on one side of the pump body, a water suction port and a water outlet are respectively formed in the pump body, the output end of the motor is connected with a first pump shaft, a second pump shaft is slidably arranged in an inner cavity of the first pump shaft, two fixing blocks are arranged on the outer wall of the second pump shaft, one end, located in the inner cavity of the first pump shaft, of the second pump shaft is fixedly connected with one end of a spring, the other end of the spring is fixedly connected with the inner cavity of the first pump shaft, one end, located outside the first pump shaft, of the second pump shaft is fixedly connected with a limiting shaft sleeve, an impeller shaft is inserted in the limiting shaft sleeve, one end of the impeller shaft is fixedly connected with impellers, limiting blocks are arranged on the outer wall of one end of the impeller shaft at equal intervals, threaded sleeves are sleeved outside the impeller shaft, the side wall of the dismounting rod is fixedly connected with a dismounting block, a pin shaft penetrates through the dismounting rod, and two ends of the pin shaft are fixedly connected with the inner wall of the water outlet.

Furthermore, the lateral wall of one end of the limiting shaft sleeve is provided with limiting openings corresponding to the positions and the number of the limiting blocks, the outer wall of the limiting shaft sleeve is provided with external threads, and the outer diameter of the limiting shaft sleeve is equal to the inner diameter of the threaded sleeve.

Furthermore, a fixing hole matched with the fixing block is formed in the first pump shaft, and an annular groove matched with the dismounting ring is formed in the outer wall of the first pump shaft.

Furthermore, the disassembly rod is of a hook-shaped structure, the disassembly ring is arranged between the two fixing blocks, and the disassembly block is tightly attached to the outer wall of the first pump shaft and is located on the same first pump shaft outer ring with the fixing blocks.

Further, the pin shaft is provided with a torsion spring, two ends of the torsion spring are fixedly connected with the inner wall of the dismounting rod, and the dismounting rod is provided with a shaft hole.

Further, the maximum moving distance of the second pump shaft is larger than the distance between the impeller and the water suction port edge.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses simple structure, reasonable in design when needing to change the impeller, stirs the dismounting rod for the second pump shaft pops out from first pump shaft inner chamber, makes the impeller remove to the pump body outside from the water sucking mouth, utilizes the instrument to twist off the thread bush from spacing axle sleeve, takes out the impeller shaft again and can change the impeller, and convenient operation is swift, has improved work efficiency.

Drawings

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

FIG. 2 is an enlarged schematic view of the structure at the position A of the present invention;

FIG. 3 is an enlarged schematic view of the structure at B of the present invention;

FIG. 4 is a schematic view of the structure of the disassembling rod of the present invention;

fig. 5 is a sectional view of the stop collar of the present invention.

In the figure: 1. a pump body; 2. a motor; 3. a water suction port; 4. a water outlet; 5. a first pump shaft; 6. a second pump shaft; 7. a spring; 8. a fixed block; 9. a limiting shaft sleeve; 91. an external thread; 92. a limiting port; 10. an impeller shaft; 101. a limiting block; 11. a threaded sleeve; 12. an impeller; 13. disassembling the ring; 14. disassembling the rod; 15. disassembling the block; 16. and (7) a pin shaft.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a mixed flow pump with a replaceable impeller, which has the advantages of rapid and convenient replacement of the impeller, saves time and improves maintenance efficiency;

referring to fig. 1, a motor 2 is disposed on one side of a pump body 1, and the pump body 1 is provided with a water suction port 3 and a water outlet 4 respectively;

referring to fig. 2, an output end of a motor 2 is connected to a first pump shaft 5, a second pump shaft 6 is slidably disposed in an inner cavity of the first pump shaft 5, one end of the second pump shaft 6 is provided with an integrally formed stopper to prevent the second pump shaft 6 from falling off from the inner cavity of the first pump shaft 5, two fixing blocks 8 are disposed on an outer wall of the second pump shaft 6, a connection structure of the fixing blocks 8 and a side wall of the second pump shaft 6 refers to a rod portion limiting mechanism of an umbrella structure, which is not described in the prior art, surfaces of the two fixing blocks 8 are arc-shaped, the two fixing blocks 8 are disposed on the same axis, one end of the inner cavity of the first pump shaft 5 of the second pump shaft 6 is fixedly connected to one end of a spring 7, the spring 7 is used for driving the second pump shaft 6 to move outward when the fixing blocks 8 lose their fixing effects;

referring to fig. 3, one end of the second pump shaft 6, which is located outside the first pump shaft 5, is fixedly connected to a limiting shaft sleeve 9, an impeller shaft 10 is inserted into the limiting shaft sleeve 9, one end of the impeller shaft 10 is fixedly connected to an impeller 12, limiting blocks 101 are arranged on the outer wall of one end of the impeller shaft 10 at equal intervals, a threaded sleeve 11 is sleeved outside the impeller shaft 10, and the thickness of the limiting block 101 is greater than that of the threaded sleeve 11, so that when the threaded sleeve 11 is screwed on the limiting shaft sleeve 9, one end of the limiting block 101 abuts against one end of the threaded sleeve 11, and a limiting and fixing;

referring to fig. 4, the outer wall of the first pump shaft 5 is rotatably connected with a dismounting ring 13, the outer wall of the dismounting ring 13 is fixedly connected with a dismounting rod 14, the side wall of the dismounting rod 14 is fixedly connected with a dismounting block 15, a pin shaft 16 penetrates through the dismounting rod 14, the pin shaft 16 plays a role in supporting the dismounting rod 14, and two ends of the pin shaft 16 are fixedly connected with the inner wall of the water outlet 4.

Example (b): when impeller 12 needs to be replaced, dismantle pole 14 around round the round pin axle 16 stirring, make the dismantlement ring 13 drive dismantlement piece 15 and remove to fixed block 8 along first pump shaft 5 outer wall, and extrude fixed block 8 to first pump shaft 5 inner chamber, fixed block 8 loses the fixed action this moment, spring 7 resets, make second pump shaft 6 outwards remove along first pump shaft 5 inner chamber, thereby order to order about impeller 12 and remove to the 3 outsides of water sucking mouth, utilize the instrument to unscrew threaded sleeve 11 from spacing axle sleeve 9, outwards stimulate impeller 12, make stopper 101 break away from spacing mouthful 92, can change impeller 12, and convenient operation is swift, time is saved, maintenance efficiency is improved.

Referring to fig. 3 and 5, in order to tightly connect the impeller shaft 10 and the limiting shaft sleeve 9, the side wall of one end of the limiting shaft sleeve 9 is provided with limiting openings 92 corresponding to the positions and the number of the limiting blocks 101, the outer wall of the limiting shaft sleeve 9 is provided with external threads 91, and the outer diameter of the limiting shaft sleeve 9 is equal to the inner diameter of the threaded sleeve 11.

The first pump shaft 5 is provided with a fixing hole matched with the fixing block 8, and the outer wall of the first pump shaft 5 is provided with an annular groove matched with the dismounting ring 13.

Referring to fig. 4, the dismounting rod 14 is a hook-shaped structure, the dismounting ring 13 is disposed between the two fixing blocks 8, and the dismounting block 15 is tightly attached to the outer wall of the first pump shaft 5 and is located on the same outer ring of the first pump shaft 5 as the fixing blocks 8.

The pin 16 is provided with a torsion spring (not shown in the figure) for resetting the dismounting rod 14, two ends of the torsion spring are fixedly connected with the inner wall of the dismounting rod 14, and the dismounting rod 14 is provided with a shaft hole.

In order to move the second pump shaft 6, the impeller 12 can move to the outside of the water suction opening 3, and the maximum moving distance of the second pump shaft 6 is larger than the distance between the impeller 12 and the edge of the water suction opening 3.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mixed flow pump of removable impeller, includes pump body (1), its characterized in that: a motor (2) is arranged on one side of the pump body (1), a water suction port (3) and a water outlet (4) are respectively arranged on the pump body (1), the output end of the motor (2) is connected with a first pump shaft (5), a second pump shaft (6) is arranged in the inner cavity of the first pump shaft (5) in a sliding manner, two fixing blocks (8) are arranged on the outer wall of the second pump shaft (6), one end, located on the outer side of the first pump shaft (5), of the second pump shaft (6) is fixedly connected with one end of a spring (7), the other end of the spring (7) is fixedly connected with the inner cavity of the first pump shaft (5), one end, located on the outer side of the first pump shaft (5), of the second pump shaft (6) is fixedly connected with a limiting shaft sleeve (9), an impeller shaft (10) is inserted into the limiting shaft sleeve (9), one end of the impeller shaft (10) is fixedly connected with an impeller (12), and limiting, impeller shaft (10) outside cover is equipped with thread bush (11), first pump shaft (5) outer wall rotates and is connected with dismantlement ring (13), dismantlement ring (13) outer wall and dismantlement pole (14) fixed connection, dismantle pole (14) lateral wall fixed connection have dismantlement piece (15), just it is provided with round pin axle (16) to run through on dismantlement pole (14), round pin axle (16) both ends and delivery port (4) inner wall fixed connection.

2. A mixed flow pump with a replaceable impeller according to claim 1, wherein: spacing mouth (92) that correspond with stopper (101) position and quantity are seted up to spacing axle sleeve (9) one end lateral wall, just external screw thread (91) have been seted up to spacing axle sleeve (9) outer wall, the external diameter of spacing axle sleeve (9) equals the internal diameter of thread bush (11).

3. A mixed flow pump with a replaceable impeller according to claim 1, wherein: the first pump shaft (5) is provided with a fixing hole matched with the fixing block (8), and the outer wall of the first pump shaft (5) is provided with an annular groove matched with the dismounting ring (13).

4. A mixed flow pump with a replaceable impeller according to claim 1, wherein: the disassembly rod (14) is of a hook-shaped structure, the disassembly ring (13) is arranged between the two fixing blocks (8), and the disassembly block (15) is tightly attached to the outer wall of the first pump shaft (5) and is located on the outer ring of the same first pump shaft (5) with the fixing blocks (8).

5. A mixed flow pump with a replaceable impeller according to claim 1, wherein: the hinge pin (16) is provided with a torsion spring, two ends of the torsion spring are fixedly connected with the inner wall of the dismounting rod (14), and the dismounting rod (14) is provided with a shaft hole.

6. A mixed flow pump with a replaceable impeller according to claim 1, wherein: the maximum moving distance of the second pump shaft (6) is larger than the distance between the impeller (12) and the edge of the water suction port (3).