CN215719749U

CN215719749U - Vertical water pump with improved structure

Info

Publication number: CN215719749U
Application number: CN202121564644.5U
Authority: CN
Inventors: 陈卫红; 陈继华
Original assignee: Taizhou Ouke Technology Co ltd
Current assignee: Taizhou Ouke Technology Co ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2022-02-01
Anticipated expiration: 2031-07-07

Abstract

The utility model provides a vertical water pump with an improved structure, and belongs to the technical field of machinery. It has solved the inconvenient problem of current water pump equipment. This vertical water pump of improvement structure includes the pump case, the barrel and the bearing frame of connecting pump case and barrel, be equipped with the impeller in the pump case, be equipped with the rotor shaft in the barrel and all overlap stator and the support cylinder on the rotor shaft, the rotor shaft lower extreme stretches into the pump case and links to each other with the impeller, the shaping has the ring portion on the bearing frame, the ring portion overlaps on the rotor shaft, ring portion and rotor shaft pass through the bearing and connect, be equipped with the annular step that is used for upwards supporting the bearing inner race in the ring portion, the support cylinder both ends are pressed respectively on bearing frame and stator, the ring portion is stretched out to bearing inner race upper end, integrated into one piece has the annular blank pressing on the support cylinder inner wall, annular blank pressing and support cylinder are coaxial and press on the bearing inner race roof, integrated into one piece has the connecting pipe on the annular blank pressing diapire, the connecting pipe cover is outside the ring portion, connecting pipe and ring portion threaded connection. This vertical water pump of improvement structure equipment is convenient.

Description

Vertical water pump with improved structure

Technical Field

The utility model belongs to the technical field of machinery, and relates to a vertical water pump, in particular to a vertical water pump with an improved structure.

Background

The water pump is a machine for conveying liquid or pressurizing liquid, and it can transfer the mechanical energy of prime mover or other external energy to the liquid to increase the energy of liquid, and is mainly used for conveying liquid including water, oil, acid-base liquid, emulsion, suspoemulsion and liquid metal, etc.

The existing water pump is a bearing mounting structure (application number: 201921912098.2) of a solar sewage pump as disclosed in Chinese patent library, which comprises a motor and a pump head which are matched with each other, wherein the head of the motor is provided with a bearing seat and a bearing, a circular pressing plate is fixed on the end surface of the bearing seat through screws, an inner ring of the pressing plate protrudes downwards close to a central shaft hole to form a circle of positioning strip in a spherical structure, and the bottom of the positioning strip is abutted against the outer ring of the bearing; the inside of motor is provided with the retaining ring, the upper end and the motor stator of retaining ring support to lean on the lower extreme mutually and support with the bearing frame and lean on.

In above-mentioned patent, through location strip and retaining ring axial limit bearing and motor stator respectively, improve the structural stability of sewage pump to improve job stabilization nature. However, the positioning strip and the retainer ring are separately and independently installed, so that the operation steps are more and more complicated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art and provides a vertical water pump with an improved structure, which is convenient to assemble.

The purpose of the utility model can be realized by the following technical scheme: the vertical water pump of improvement structure, including the pump case, the barrel and the bearing frame of connecting pump case and barrel, be equipped with the impeller in the pump case, be equipped with the rotor shaft in the barrel and all overlap stator and the support cylinder on the rotor shaft, the rotor shaft lower extreme stretches into the pump case and links to each other with the impeller, the shaping has the ring portion on the bearing frame, the ring portion overlaps on the rotor shaft, ring portion and rotor shaft pass through the bearing and connect, and be equipped with the annular step that is used for upwards supporting the bearing inner race in the ring portion, the support cylinder both ends are pressed respectively on bearing frame and stator, a serial communication port, the outer lane upper end of bearing stretches out the ring portion, integrated into one piece has the annular blank pressing on the inner wall of support cylinder, annular blank pressing and support cylinder are coaxial and press on bearing inner race roof, integrated into one piece has the connecting pipe on the annular blank pressing diapire, the connecting pipe cover is outside the ring portion, and connecting pipe and ring portion threaded connection.

The supporting cylinder is of an integrated structure, and the stator and the bearing can be limited in the axial direction by rotating the supporting cylinder, so that the assembling steps can be effectively reduced, and the supporting cylinder has the advantages of convenience and easiness in assembling.

In the above-mentioned vertical water pump of improved structure, a plurality of through-holes have vertically been run through on the aforesaid annular blank holder, and the connecting pipe is located between through-hole and the annular blank holder hole for alleviate a support section of thick bamboo weight.

In the above-mentioned vertical water pump of improvement structure, the through-hole is arc and coaxial with the annular blank pressing, and a plurality of through-holes along the circumference equipartition of annular blank pressing.

In the above improved structure of the vertical water pump, the top wall of the annular blank holder is integrally formed with a convex strip, and the length of the convex strip extends along the radial direction of the annular blank holder.

In the above-mentioned vertical water pump of improvement structure, sand grip and through-hole quantity the same and position one-to-one, sand grip both ends extend to annular blank holder inner wall and through-hole inner wall department respectively. The intensity of annular blank pressing in bearing department both can be strengthened to the sand grip, improves the stability of spacing bearing, and usable instrument rotates the barrel again with the cooperation of round sand grip and realizes the dismouting, promptly in this application, the sand grip possesses two kinds of functions simultaneously to through simplifying the structure, further make things convenient for the equipment.

In the vertical water pump with the improved structure, the two end faces of the inner side wall of the supporting cylinder and the annular blank pressing edge are in arc transition so as to enhance the connection strength between the annular blank pressing edge and the supporting cylinder.

In the vertical water pump with the improved structure, the rotor shaft is provided with the shaft shoulder, the rotor shaft is further screwed with the nut, the nut is arranged between the impeller and the bearing, and two ends of the inner ring of the bearing are respectively tightly pressed on the shaft shoulder and the nut, so that the bearing is further limited in the axial direction, and the working stability is improved.

Compared with the prior art, the vertical water pump with the improved structure has the following advantages:

1. the supporting cylinder is of an integrated structure, and the stator and the bearing can be limited in the axial direction by rotating the supporting cylinder, so that the assembling steps can be effectively reduced, and the supporting cylinder has the advantages of convenience and easiness in assembling.

2. The intensity of annular blank pressing in bearing department both can be strengthened to the sand grip, improves the stability of spacing bearing, and usable instrument rotates the barrel again with the cooperation of round sand grip and realizes the dismouting, promptly in this application, the sand grip possesses two kinds of functions simultaneously to through simplifying the structure, further make things convenient for the equipment.

Drawings

Fig. 1 is a schematic structural view of the vertical water pump with the improved structure.

Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.

Fig. 3 is a sectional structural view of the support cylinder.

Fig. 4 is a schematic top view of the support cylinder.

In the drawings, 1, a pump casing; 2. a barrel; 3. a bearing seat; 3a, a ring part; 3a1, annular step; 4. an impeller; 5. a rotor shaft; 5a, a shaft shoulder; 6. a stator; 7. a support cylinder; 7a, annular blank pressing; 7a1, vias; 7a2, ribs; 7b, a connecting pipe; 8. a bearing; 8a, an inner ring; 8b, an outer ring; 9. and a nut.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, the vertical water pump of the improved structure comprises a pump housing 1, a cylinder 2 and a bearing seat 3. Wherein, bearing frame 3 sets up between barrel 2 and pump case 1, and 3 both ends of bearing frame are sealed respectively with pump case 1 and barrel 2 and are linked firmly. An impeller 4 is arranged in the pump shell 1; a rotor shaft 5 coaxial with the machine barrel 2 is arranged in the machine barrel 2, a rotor is arranged on the rotor shaft 5, a stator 6 is sleeved outside the rotor, and the stator 6 is used for installing a winding coil.

In particular, the present invention relates to a method for producing,

the lower end of the rotor shaft 5 penetrates through the bearing block 3 to extend into the pump shell 1 and is connected with the impeller 4, and the rotor shaft 5 forms a seal with the bearing block 3 through a mechanical seal. The machine barrel 2 is also internally provided with a supporting cylinder 7, the supporting cylinder 7 is coaxial with the rotor shaft 5, at the moment, the supporting cylinder 7 is sleeved on the rotor shaft 5, and two ends of the supporting cylinder 7 are respectively pressed on the bearing block 3 and the stator 6.

As shown in fig. 1 and 2, a ring portion 3a is formed on the bearing housing 3, and the ring portion 3a and the bearing housing 3 are coaxial and have an integral structure. The cover of ring portion 3a is on rotor shaft 5, and ring portion 3a and rotor shaft 5 pass through bearing 8 and connect, and be equipped with in the ring portion 3a and be used for upwards supporting bearing 8 outer lane 8 b's annular step 3a1, and this moment, bearing 8's inner circle 8a and outer lane 8b link firmly with rotor shaft 5 and ring portion 3a respectively, and outer lane 8b lower extreme is pressed on annular step 3a 1. The upper end of the outer ring 8b of the bearing 8 extends out of the ring part 3a, an annular blank pressing 7a is integrally formed on the inner wall of the support cylinder 7, the annular blank pressing 7a and the support cylinder 7 are coaxial and are pressed on the top wall of the outer ring 8b of the bearing 8, a connecting pipe 7b is integrally formed on the bottom wall of the annular blank pressing 7a, the connecting pipe 7b is sleeved outside the ring part 3a, and the connecting pipe 7b is in threaded connection with the ring part 3 a. Support a section of thick bamboo 7 formula structure as an organic whole to through rotating support a section of thick bamboo 7, can accomplish simultaneously and make son 6 and bearing 8 positions at the axial upper limit, can effectively reduce the equipment step, have equipment convenience, light advantage. Preferably, the inner side wall of the support cylinder 7 and two end faces of the annular pressing edge 7a are in arc transition.

Further, a shaft shoulder 5a is arranged on the rotor shaft 5, a nut 9 is further screwed on the rotor shaft 5, the nut 9 is arranged between the impeller 4 and the bearing 8, and two ends of an inner ring 8a of the bearing 8 are respectively tightly pressed on the shaft shoulder 5a and the nut 9, so that the bearing 8 is further limited in the axial direction, and the working stability is improved.

As shown in fig. 2, 3 and 4, a plurality of through holes 7a1 vertically penetrate through the annular pressing edge 7a, and a connecting pipe 7b is arranged between the through hole 7a1 and the inner hole of the annular pressing edge 7a for reducing the weight of the support cylinder 7. Preferably, the through holes 7a1 are circular arc-shaped and coaxial with the annular pressing edge 7a, and the plurality of through holes 7a1 are uniformly distributed along the circumferential direction of the annular pressing edge 7 a. Further, a convex strip 7a2 is integrally formed on the top wall of the annular pressing edge 7a, and the length of the convex strip 7a2 extends along the radial direction of the annular pressing edge 7 a. The convex strips 7a2 and the through holes 7a1 are the same in number and correspond to each other in position, and two ends of the convex strips 7a2 respectively extend to the inner wall of the annular pressing edge 7a and the inner wall of the through hole 7a 1. The intensity of annular blank holder 7a in bearing 8 department both can be strengthened to sand grip 7a2, improves spacing bearing 8's stability, and usable instrument again rotates the barrel with the cooperation of round sand grip 7a2 and realizes the dismouting, and in this application promptly, sand grip 7a2 possesses two kinds of functions simultaneously to through simplifying the structure, further make things convenient for the equipment.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. The structure-improved vertical water pump comprises a pump shell (1), a machine barrel (2) and a bearing seat (3) for connecting the pump shell (1) and the machine barrel (2), wherein an impeller (4) is arranged in the pump shell (1), a rotor shaft (5) and a stator (6) and a supporting barrel (7) which are sleeved on the rotor shaft (5) are arranged in the machine barrel (2), the lower end of the rotor shaft (5) extends into the pump shell (1) and is connected with the impeller (4), a ring part (3a) is formed on the bearing seat (3), the ring part (3a) is sleeved on the rotor shaft (5), the ring part (3a) is connected with the rotor shaft (5) through a bearing (8), an annular step (3a1) for upwards supporting an outer ring (8b) of the bearing (8) is arranged in the ring part (3a), two ends of the supporting barrel (7) are respectively pressed on the bearing seat (3) and the stator (6), and the structure is characterized in that the upper end of the outer ring (8b) of the bearing (8) extends out of the ring part (3a), an annular pressing edge (7a) is integrally formed on the inner wall of the supporting cylinder (7), the annular pressing edge (7a) and the supporting cylinder (7) are coaxial and are pressed on the top wall of an outer ring (8b) of the bearing (8), a connecting pipe (7b) is integrally formed on the bottom wall of the annular pressing edge (7a), the connecting pipe (7b) is sleeved outside the ring portion (3a), and the connecting pipe (7b) is in threaded connection with the ring portion (3 a).

2. The improved vertical water pump as claimed in claim 1, wherein the annular holder (7a) has a plurality of through holes (7a1) vertically passing therethrough, and the connection pipe (7b) is located between the through hole (7a1) and the inner hole of the annular holder (7 a).

3. The improved vertical water pump as claimed in claim 2, wherein the through holes (7a1) are circular and coaxial with the annular pressing edge (7a), and the through holes (7a1) are uniformly distributed along the circumferential direction of the annular pressing edge (7 a).

4. The improved vertical water pump as claimed in claim 3, wherein the rib (7a2) is integrally formed on the top wall of the annular pressing edge (7a), and the length of the rib (7a2) extends along the radial direction of the annular pressing edge (7 a).

5. The improved vertical water pump as claimed in claim 4, wherein the ribs (7a2) and the through holes (7a1) are the same in number and have one-to-one correspondence in position, and both ends of the ribs (7a2) extend to the inner wall of the annular rib (7a) and the inner wall of the through hole (7a1), respectively.

6. The vertical water pump with the improved structure as claimed in claim 1, 2, 3, 4 or 5, wherein the inner side wall of the support cylinder (7) and the two end faces of the annular pressing edge (7a) are in arc transition.

7. The vertical water pump with the improved structure as claimed in claim 1, 2, 3, 4 or 5, wherein the rotor shaft (5) is provided with a shaft shoulder (5a), the rotor shaft (5) is further screwed with a nut (9), the nut (9) is arranged between the impeller (4) and the bearing (8), and two ends of an inner ring (8a) of the bearing (8) are respectively tightly pressed on the shaft shoulder (5a) and the nut (9).