CN219035029U

CN219035029U - Horizontal centrifugal pump

Info

Publication number: CN219035029U
Application number: CN202223444881.5U
Authority: CN
Inventors: 林露; 杨朝彬; 杨晓波; 明亮
Original assignee: Sichuan Gaoxin Purification Equipment Co ltd
Current assignee: Sichuan Gaoxin Purification Equipment Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-05-16
Anticipated expiration: 2032-12-22

Abstract

The utility model relates to a horizontal centrifugal pump which comprises a base, a motor, a volute, a pump cover, a pump shaft and an impeller, wherein the motor and the volute are arranged on the base side by side, one side of the volute facing the motor is provided with an opening, the pump cover is detachably arranged on the opening and is matched with the volute to form a pump cavity, one end of the pump shaft is connected with the motor, the other end of the pump shaft penetrates through a shaft hole of the pump cover to be inserted into the volute and is detachably connected with the impeller, a steel sleeve and a corrugated sealing sleeve are sleeved on the pump shaft, the corrugated sealing sleeve is arranged between the steel sleeves, and the steel sleeve and the outer ring of the corrugated sealing sleeve are both in butt joint with the inner wall of the shaft hole. The corrugated sealing sleeve is extruded by the steel sleeve, so that the outer ring of the corrugated sealing sleeve is extruded and attached to the shaft hole of the pump cover, the tightness of rigid fit is ensured, liquid is prevented from leaking out from the shaft hole, and the integral tightness is good.

Description

Horizontal centrifugal pump

Technical Field

The utility model relates to the technical field of centrifugal pumps, in particular to a horizontal centrifugal pump.

Background

Centrifugal pumps operate by utilizing centrifugal force generated by water by rotation of an impeller. Before the centrifugal 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 do high-speed rotation movement, and the water is thrown to the outer edge of the impeller under the action of centrifugal force and flows into the water pressing pipeline of the water pump through the flow channel of the volute pump shell. At the center of the impeller of the water pump, water in the water suction tank is pressed into the pump shell under the action of atmospheric pressure because water is thrown out under the action of centrifugal force to form vacuum, and the impeller continuously rotates, so that the water continuously flows in and out under the action of the impeller, and the purpose of conveying the water is achieved. The existing centrifugal pump is easy to leak and seep at the joint of the pump shaft and the pump cover, so that the pressure in the pump shell is unstable, and the working efficiency of the pump is reduced.

Disclosure of Invention

In view of the above, it is necessary to provide a horizontal centrifugal pump in view of the above problems.

The utility model provides a horizontal centrifugal pump, includes the base, the motor, the spiral case, pump cover, pump shaft and impeller, the motor is installed on the base side by side with the spiral case, the spiral case towards motor one side is provided with the opening, and pump cover demountable installation is in on the opening, form the pump chamber with the spiral case cooperation, pump shaft one end is connected with the motor, and the other end runs through the shaft hole of pump cover inserts in the spiral case, demountable connection with the impeller, the cover is equipped with steel bushing and ripple seal cover on the pump shaft, the ripple seal cover sets up between the steel bushing, the outer lane of steel bushing and ripple seal cover all with shaft hole inner wall butt.

Preferably, a baffle is further sleeved on the pump shaft, the baffle is abutted to a steel sleeve close to one side of the motor, and the baffle is detachably connected with the pump cover through a tension bolt.

Preferably, the pump shaft is further sleeved with a shaft sleeve, and the steel sleeve, the corrugated sealing sleeve and the baffle plate are sleeved on the shaft sleeve.

Preferably, a coupling is arranged at the output end of the motor, and the motor is connected with the pump shaft through the coupling.

Preferably, the coupling is provided with a U-shaped protection cover, and the U-shaped protection cover is connected with the base.

Preferably, a shaft protection sleeve is further arranged between the pump cover and the U-shaped protection cover, one end of the shaft protection sleeve is connected with the pump cover, the other end of the shaft protection sleeve is connected with the base, and the pump shaft penetrates through the shaft protection sleeve.

The utility model has the advantages that: the corrugated sealing sleeve is extruded by the steel sleeve, so that the outer ring of the corrugated sealing sleeve is extruded and attached to the shaft hole of the pump cover, the tightness of rigid fit is ensured, liquid is prevented from leaking out from the shaft hole, and the integral tightness is good.

Drawings

FIG. 1 is a schematic perspective view of a horizontal centrifugal pump according to one embodiment;

fig. 2 is an exploded view of a horizontal centrifugal pump.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-2, a horizontal centrifugal pump comprises a base 1, a motor 2, a volute 3, a pump cover 4, a pump shaft 5 and an impeller 6, wherein the motor 2 and the volute 3 are installed on the base 1 side by side, one side of the volute 3 facing the motor 2 is provided with an opening 31, the pump cover 4 is detachably installed on the opening 31 and is matched with the volute 3 to form a pump cavity, one end of the pump shaft 5 is connected with the motor 2, the other end of the pump shaft penetrates through a shaft hole 41 of the pump cover 4 and is inserted into the volute 3 and is detachably connected with the impeller 6, a steel sleeve 51 and a corrugated sealing sleeve 52 are sleeved on the pump shaft 5, the corrugated sealing sleeve 52 is arranged between the steel sleeves 51, and the outer rings of the steel sleeve 51 and the corrugated sealing sleeve 52 are all in butt joint with the inner wall of the shaft hole 41. Specifically, in this embodiment, the motor 2 and the volute 3 are linearly mounted on the base 1 side by side, so that the pump shaft 5 is conveniently mounted. The output end of the motor 2 is connected with an impeller 6 in the volute 3 through a pump shaft 5, and the impeller 6 is driven to rotate, so that water is thrown to the outer edge of the impeller 6 under the action of centrifugal force, and flows into a water pressing pipeline of the water pump through a volute flow passage of the volute 3. The volute 3 and the pump cover 4 are connected through bolts to form a pump cavity, and a sealing rubber ring is in interference fit with the connecting position of the volute 3 and the pump cover 4 in order to prevent liquid from leaking out of the connecting position of the volute 3 and the pump cover 4. It is known that the pump shaft 5 is inserted into the volute 3 through the pump cover 4, the pump cover 4 is provided with a shaft hole 41 corresponding to the pump shaft 5, and a gap exists between the shaft hole 41 and the pump shaft 5, so in the technical scheme, a steel sleeve 51 and a corrugated sealing ring 52 are sleeved on the pump shaft 5, the corrugated sealing ring 52 is arranged between the steel sleeves 51, in the technical scheme, the corrugated sealing ring 52 is one, two steel sleeves 51 are arranged on the left side and the right side of the corrugated sealing ring, the corrugated sealing ring 52 is a rubber ring, the corrugated sealing ring 52 is extruded by the steel sleeves 51 on the two sides, the corrugated bulge in the middle part of the corrugated sealing ring is in extrusion fit with the inner ring of the shaft hole 41 on the outer side of the corrugated sealing ring, and thus liquid leakage from the shaft hole 41 can be prevented, and tightness of rigid fit is ensured.

As shown in fig. 1-2, a baffle 53 is further sleeved on the pump shaft 5, the baffle 53 is abutted against the steel sleeve 51 near one side of the motor 2, and the baffle 53 is detachably connected with the pump cover 4 through a tension bolt 7. Specifically, the baffle plate 53 is used to cooperate with the shaft hole 41 to limit the steel sleeve 51, so that the steel sleeve 51 is prevented from sliding on the pump shaft 5, and meanwhile, the baffle plate 53 is locked by using the tension bolt 7, so that the position is fixed, and the looseness is not easy to occur.

As shown in fig. 1-2, a shaft sleeve 54 is further sleeved on the pump shaft 5, and the steel sleeve 51, the corrugated sealing sleeve 52 and the baffle 53 are all sleeved on the shaft sleeve 54. Specifically, the steel sleeve 51 and the corrugated sealing sleeve 52 slide relatively on the shaft sleeve 54, and wear, so that the shaft sleeve 54 plays a role in protecting the pump shaft 5, and the service life of the pump shaft 5 is prolonged.

As shown in fig. 1-2, the output end of the motor 2 is provided with a coupler 21, and the motor 2 is connected with the pump shaft 5 through the coupler 21, so as to play roles in buffering, damping and improving the dynamic performance of the shafting.

As shown in fig. 1-2, the coupling 21 is provided with a U-shaped protection cover 22, and the U-shaped protection cover 22 is connected with the base 1 to protect the coupling 21 and prevent external dust and the like from falling into the coupling 21, so that the coupling is blocked and blocked when rotating.

As shown in fig. 1-2, a shaft protecting sleeve 8 is further disposed between the pump cover 4 and the U-shaped protecting cover 22, one end of the shaft protecting sleeve 8 is connected with the pump cover 4, the other end is connected with the base 1, and the pump shaft 5 penetrates through the shaft protecting sleeve 8. Specifically, the shaft protecting sleeve 8 plays a role in protecting the pump shaft 5, and simultaneously prevents external objects from touching the pump shaft 5 when the pump shaft 5 rotates to work, so that safety accidents occur.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A horizontal centrifugal pump, characterized in that: including the base, the motor, the spiral case, the pump cover, pump shaft and impeller, the motor is installed on the base side by side with the spiral case, the spiral case towards motor one side is provided with the opening, and pump cover demountable installation is in on the opening, forms the pump chamber with the spiral case cooperation, pump shaft one end is connected with the motor, and the other end runs through the shaft hole of pump cover inserts in the spiral case, demountable connection with the impeller, the cover is equipped with steel bushing and ripple seal cover on the pump shaft, the ripple seal cover sets up between the steel bushing, the outer lane of steel bushing and ripple seal cover all with shaft hole inner wall butt.

2. A horizontal centrifugal pump as claimed in claim 1, wherein: the pump shaft is further sleeved with a baffle, the baffle is abutted to a steel sleeve close to one side of the motor, and the baffle is detachably connected with the pump cover through a tension bolt.

3. A horizontal centrifugal pump as claimed in claim 2, wherein: and the pump shaft is also sleeved with a shaft sleeve, and the steel sleeve, the corrugated sealing sleeve and the baffle plate are sleeved on the shaft sleeve.

4. A horizontal centrifugal pump as claimed in claim 3, wherein: the output end of the motor is provided with a coupler, and the motor is connected with the pump shaft through the coupler.

5. A horizontal centrifugal pump as set forth in claim 4, wherein: the coupling is provided with a U-shaped protection cover, and the U-shaped protection cover is connected with the base.

6. A horizontal centrifugal pump as set forth in claim 5, wherein: and a shaft protection sleeve is further arranged between the pump cover and the U-shaped protection cover, one end of the shaft protection sleeve is connected with the pump cover, the other end of the shaft protection sleeve is connected with the base, and the pump shaft penetrates through the shaft protection sleeve.