CN215256823U

CN215256823U - Centrifugal pump convenient to maintenance

Info

Publication number: CN215256823U
Application number: CN202121558450.4U
Authority: CN
Inventors: 宋洋洋; 郑坚; 杨文宝
Original assignee: Qianfeng Pump Co ltd
Current assignee: Qianfeng Pump Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2021-12-21
Anticipated expiration: 2031-07-09

Abstract

The utility model provides a centrifugal pump convenient to maintenance belongs to fluid machinery technical field. It has solved and has connected through the flange face between current motor and the pump head, has the inconvenient problem of maintenance. This centrifugal pump convenient to maintenance, including the motor, the impeller and the pump body, the front end of motor links firmly the end cover, and the axle of motor passes the end cover and extends to pump body department, and the impeller is fixed in the tip of axle and is located the pump body, and the outside outwards extension of end cover forms the bowl form pump case rather than formula structure as an organic whole, and round installation step has been seted up to the terminal surface of pump case, and the installation step inside callipers is equipped with the baffle, and the sunken mounting groove that forms of central axial of baffle is provided with mechanical seal in the mounting groove. The utility model discloses integrated pump head casing on the front end housing of motor makes it have the advantage of conveniently disassembling in later stage maintenance process.

Description

Centrifugal pump convenient to maintenance

Technical Field

The utility model belongs to the technical field of fluid machinery, a water pump is related to, in particular to centrifugal pump convenient to maintenance.

Background

The centrifugal pump is a pump for conveying liquid by means of centrifugal force generated when an impeller rotates, a pump shell and a water suction pipe are filled with water before the water pump is started, then a motor is started, the pump shaft drives the impeller and the water to rotate at high speed, the water generates centrifugal motion and is thrown to the outer edge of the impeller, and the water flows into a water pressure pipeline of the water pump through a flow channel of a volute-shaped pump shell. Among the prior art, the centrifugal pump generally includes motor and pump head, is connected through flange face between motor and the pump head, and spare parts such as mechanical seal, impeller are all installed to the inside of pump head, consequently in the maintenance in-process in later stage, need disassemble whole pump head, have the inconvenient problem of maintenance.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide an integrated pump head casing on the front end housing of motor, make its convenient centrifugal pump of disassembling in the maintenance process of later stage.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a centrifugal pump convenient to maintenance, includes the motor, impeller and the pump body, the front end of motor link firmly has the end cover, the axle of motor passes the end cover and extends to pump body department, the impeller be fixed in the tip of axle and be located the pump body, its characterized in that, the outside of end cover outwards expands the bowl form pump case that forms rather than formula structure as an organic whole, round installation step has been seted up to the terminal surface of pump case, installation step inside callipers be equipped with the baffle, the sunken mounting groove that forms of central axial of baffle, the mounting groove in be provided with mechanical seal.

In the centrifugal pump, the assembling structure is that the baffle is clamped in the mounting step for positioning, one end of the mechanical seal is abutted against the mounting groove of the baffle, the other end of the mechanical seal is abutted against the impeller, and the pump body and the pump shell are matched and fixed to form a whole centrifugal pump.

In the centrifugal pump convenient to maintain, the inner part of the pump shell is circumferentially provided with the ribbed plates in an array manner.

In the centrifugal pump convenient to maintain, at least one disassembly groove is formed in the edge of the pump shell.

In the centrifugal pump convenient to maintain, the number of the disassembly grooves is two, and the disassembly grooves are perpendicular to each other.

In the centrifugal pump convenient to maintain, the outer ring of the baffle is sleeved with the sealing ring, and the sealing ring is positioned on the contact surface of the baffle and the pump body.

In the centrifugal pump convenient to maintain, the pump body is provided with an axially arranged water inlet and a radially arranged water outlet, and the position of the water inlet is opposite to the center of the impeller.

Compared with the prior art, this centrifugal pump is through with pump case and motor end cover integrated design, is fixed in the end cover with the pump body again on, only need open the pump body spare parts such as alright dismantlement impeller and seal structure, has the later stage and disassembles more convenient advantage of maintenance swiftly more.

Drawings

FIG. 1 is an exploded view of the centrifugal pump;

in the figure, 1, a motor; 2. an impeller; 3. a pump body; 3a, a water inlet; 3b, a water outlet; 4. an end cap; 5. a pump housing; 5a, mounting steps; 5b, a rib plate; 5c, disassembling the groove; 6. a baffle plate; 6a, mounting grooves; 7. mechanical sealing; 8. and (5) sealing rings.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, this centrifugal pump convenient to maintenance, including motor 1, impeller 2 and the pump body 3, motor 1's front end rigid coupling has end cover 4, motor 1's axle passes end cover 4 and extends to the pump body 3 department, impeller 2 is fixed in the tip of axle and is located the pump body 3, the outside of end cover 4 outwards expands and forms the bowl form pump case 5 rather than formula structure as an organic whole, round installation step 5a has been seted up to the terminal surface of pump case 5, installation step 5a inside callipers is equipped with baffle 6, the structure of installation step 5a cooperatees with baffle 6 and in baffle 6 interference fit installation step 5a, the sunken mounting groove 6a that forms of the central axial of baffle 6, be provided with mechanical seal 7 in the mounting groove 6 a.

To further explain, in order to increase the structural tightness of the pump housing 5, ribs 5b are arranged in the circumferential direction inside the pump housing 5.

In order to facilitate the detachment of the baffle 6 in the later period, at least one detachment groove 5c is formed in the edge of the pump shell 5, and the number of the detachment grooves 5c is two and the positions of the detachment grooves are perpendicular to each other.

A fit clearance is formed between the baffle 6 and the pump body 3, liquid of the pump body 3 is prevented from entering the motor 1, a sealing ring 8 is sleeved on the outer ring of the baffle 6, and the sealing ring 8 is located on the contact surface of the baffle 6 and the pump body 3.

The pump body 3 is provided with an axial water inlet 3a and a radial water outlet 3b, and the position of the water inlet 3a is opposite to the center of the impeller 2.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although various terms are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a centrifugal pump convenient to maintenance, includes motor (1), impeller (2) and the pump body (3), the front end of motor (1) link firmly has end cover (4), the axle of motor (1) passes end cover (4) and extends to pump body (3) department, impeller (2) be fixed in the tip of axle and be located pump body (3), its characterized in that, the outside of end cover (4) outwards expands form rather than bowl form pump case (5) of formula structure as an organic whole, round installation step (5 a) have been seted up to the terminal surface of pump case (5), installation step (5 a) inside callipers be equipped with baffle (6), the central axial of baffle (6) is sunken to form mounting groove (6 a), mounting groove (6 a) in be provided with mechanical seal (7).

2. A centrifugal pump facilitating maintenance according to claim 1, wherein ribs (5 b) are arranged circumferentially inside the pump casing (5).

3. A centrifugal pump facilitating maintenance according to claim 1, characterized in that the pump casing (5) is provided with at least one dismounting groove (5 c) at its edge.

4. A centrifugal pump facilitating maintenance according to claim 3, wherein the number of the disassembling grooves (5 c) is two and the positions are perpendicular to each other.

5. A centrifugal pump convenient for maintenance according to claim 1, wherein the outer ring of the baffle plate (6) is sleeved with a sealing ring (8), and the sealing ring (8) is positioned on the contact surface of the baffle plate (6) and the pump body (3).

6. A centrifugal pump facilitating maintenance according to claim 1, wherein the pump body (3) has an axially disposed water inlet (3 a) and a radially disposed water outlet (3 b), the water inlet (3 a) being located opposite to the center of the impeller (2).