CN217462587U

CN217462587U - Water pump

Info

Publication number: CN217462587U
Application number: CN202221576961.3U
Authority: CN
Inventors: 周应来; 赖良庆; 黄赞辉; 李赞; 张盼利
Original assignee: Changsha Dewater Mechanical Technology Co ltd
Current assignee: Changsha Dewater Mechanical Technology Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-09-20
Anticipated expiration: 2032-06-22

Abstract

The utility model discloses a water pump, which relates to the technical field of pumps and comprises a shell and a permanent magnet synchronous motor, wherein the water inlet end on the shell is opened and used for water inlet, and the water outlet end on the shell is opened and used for water outlet; the permanent magnet synchronous motor comprises a motor shell, a power generation assembly and a power output shaft, wherein the motor shell is arranged in the shell and forms a water passing channel with the inner wall of the shell; rivers can flow through water channel and reach the open end after passing through the impeller, the utility model discloses a water pump is portable not only, can be fast moreover, in time, carry out the drainage effectively.

Description

Water pump

Technical Field

The utility model relates to a pump technical field especially relates to a water pump.

Background

In extreme weather, high-intensity and large-area rainfall is often accompanied, and lakes, dams and the like can easily rise after receiving a large amount of rainfall, and even flood disasters are caused. In order to avoid flood or reduce the harm caused by flood, emergency rescue and drainage are needed in time, and the emergency rescue pump is equipment which is often used by people during emergency rescue and drainage.

The conventional drainage diving pump is small in flow and cannot drain water quickly, timely and effectively, and the conventional drainage diving pump is large in flow, so that the conventional drainage diving pump is not convenient to carry and cannot reach a designated emergency rescue place quickly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a water pump to solve the problem that above-mentioned prior art exists, can portable, can quick, timely, carry out the drainage effectively moreover.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a water pump, which comprises a shell and a permanent magnet synchronous motor, wherein the water inlet end on the shell is opened and used for water inlet, and the water drainage end on the shell is opened and used for water drainage; the permanent magnet synchronous motor comprises a motor shell, a power generation assembly and a power output shaft, wherein the motor shell is arranged in the shell and forms a water passing channel with the inner wall of the shell, the water passing channel is communicated with the water inlet end and the water discharging end, the power generation assembly is arranged in the motor shell and is used for providing power and driving the power output shaft to rotate around the axis of the power output shaft, one end of the power output shaft is used for extending out of the motor shell and extending towards the direction close to the water inlet end, the power output shaft is used for being in sealing fit with the motor shell, an impeller is coaxially and fixedly arranged on the part of the power output shaft extending out of the motor shell, the impeller rotates to increase the speed of water flow entering the shell from the water inlet end, and a guide vane body is arranged in the shell, the guide vane body is arranged between the impeller and the drainage end and can convert part of kinetic energy of the water flow into static pressure energy; the water flow can flow through the water passage and reach the open end after passing through the impeller.

Preferably, the guide vane body is used for being arranged in the water passing channel and close to the impeller.

Preferably, the motor casing includes motor casing body and motor end cover, the motor casing body is used for locating in the casing, just form between the outer wall of motor casing body and the inner wall of casing water channel, the motor casing body is used for being close to the one end of intaking the end has seted up the through-hole, the motor end cover is used for with the through-hole shutoff, set up on the motor end cover and enable power output shaft passes through and forms the rotation seal's mounting hole.

Preferably, the permanent magnet synchronous motor further comprises a bearing body, the hole wall of the mounting hole is used for being fixedly and hermetically connected with the outer ring of the bearing body, and the inner ring of the bearing body is used for being fixedly and hermetically connected with the outer side wall of the power output shaft; the outer side wall of the bearing body and the inner side wall of the bearing body can rotate relatively.

Preferably, the bearing body is a deep groove ball bearing.

Preferably, the motor casing body and the casing are of an integrally formed structure.

Preferably, the water-saving filter further comprises a filter body, wherein the filter body is fixedly arranged at the opening end, and water passing holes are distributed in the filter body.

The utility model discloses for prior art gain following technological effect:

the utility model provides a water pump, through setting up the speed that PMSM drive impeller rotated and increased rivers, the volume of water pump is littleer, weight is lighter, portable; meanwhile, the impeller is driven by the permanent magnet synchronous motor to be combined with the guide vane body, so that the water pump is higher in drainage efficiency and higher in stability, and the drainage end can be matched with an external water belt for use, so that the operation radius can be increased; adopt the utility model provides a when the water pump carries out the drainage operation, rivers flow through water channel, can play forced water-cooled effect to PMSM, effectively reduces PMSM's temperature, prolongs its life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the water pump provided by the present invention;

fig. 2 is a sectional view of the water pump shown in fig. 1.

In the figure: 100-water pump, 1-shell, 11-water inlet end, 12-water outlet end, 2-permanent magnet synchronous motor, 21-motor shell body, 22-motor end cover, 23-power output shaft, 24-part of power output shaft extending out of motor shell, 25-bearing body, 3-water channel, 4-impeller, 5-guide vane body and 6-filter body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1 and 2, the present invention provides a water pump 100, which includes a housing 1 and a permanent magnet synchronous motor 2, wherein a water inlet end 11 on the housing 1 is opened for water inlet, and a water outlet end 12 on the housing 1 is opened for water outlet; the permanent magnet synchronous motor 2 comprises a motor shell, a power generation assembly and a power output shaft 23, wherein the motor shell is arranged in the shell 1 and forms a water passing channel 3 with the inner wall of the shell 1, the water passing channel is communicated with a water inlet end 11 and a water discharge end 12, the power generation assembly is arranged in the motor shell, the power generation assembly is used for providing power and driving the power output shaft 23 to rotate around the axis of the power output shaft 23, one end of the power output shaft 23 is used for extending out of the motor shell and extending towards the direction close to the water inlet end 11, the power output shaft 23 is used for being in sealing fit with the motor shell, the part 24 of the power output shaft extending out of the motor shell is coaxially and fixedly provided with the impeller 4, the impeller 4 rotates to increase the speed of water flow entering the shell 1 from the water inlet end 11, the shell 1 is internally provided with the guide vane body 5, the guide vane body 5 is arranged between the impeller 4 and the drainage end 12, and the guide vane body 5 can convert part of kinetic energy of water flow into static pressure energy; the water flow after passing through the impeller 4 is able to flow through the water passage 3 and to the open end.

Therefore, on the premise of equal flow lift, compared with a three-phase asynchronous motor driving structure of the traditional water pump 100, the water pump 100 provided by the utility model increases the speed of water flow by setting the permanent magnet synchronous motor 2 to drive the impeller 4 to rotate, and the water pump 100 has smaller volume, lighter weight and convenient carrying; meanwhile, the impeller 4 is driven by the permanent magnet synchronous motor 2 to be combined with the guide vane body 5, so that the water pump 100 is higher in drainage efficiency and higher in stability, and the drainage end 12 can be matched with an external water belt for use, so that the operation radius can be increased; when the water pump 100 provided by the utility model is used for drainage operation, water flow passes through the water channel 3, so that the effect of forced water cooling can be achieved for the permanent magnet synchronous motor 2, the temperature of the permanent magnet synchronous motor 2 is effectively reduced, and the service life of the permanent magnet synchronous motor is prolonged; it should be noted that the working principle of the permanent magnet synchronous motor 2 and the connection structure of the power generation assembly and the power output shaft 23 can refer to the existing permanent magnet synchronous motor, wherein the form and principle of the power generation assembly for generating power can refer to the existing permanent magnet synchronous motor; therefore, the utility model provides a water pump 100 is particularly useful for the work of emergency rescue drainage.

Furthermore, the guide vane body 5 is arranged in the water passage 3 and close to the impeller 4, so that the water flow can be enabled to rapidly flow to the guide vane body 5 after being accelerated by the rotation of the impeller 4, and partial kinetic energy of the water flow is converted into static pressure energy through the guide vane body 5 and stored in the water flow, thereby reducing energy loss and improving the utilization rate of the drainage power of the water pump 100.

Further, the motor casing includes motor casing body 21 and motor end cover 22, motor casing body 21 is used for locating in casing 1, and form water channel 3 between the outer wall of motor casing body 21 and the inner wall of casing 1, the one end that is used for being close to into water end 11 on the motor casing body 21 has seted up the through-hole, motor end cover 22 is used for plugging the through-hole, set up on the motor end cover 22 and can make power output shaft 23 pass through and form rotation seal's mounting hole, can dismantle with motor casing body 21 and be connected through setting up the motor cover, can be convenient for assemble and maintain PMSM 2.

Further, the permanent magnet synchronous motor 2 further comprises a bearing body 25, a mounting hole is formed in the motor end cover 22, the hole wall of the mounting hole is used for being fixedly and hermetically connected with the outer ring of the bearing body 25, and the inner ring of the bearing body 25 is used for being fixedly and hermetically connected with the outer side wall of the power output shaft 23; the outer side wall of the bearing body 25 and the inner side wall of the bearing body 25 can rotate relatively, and the structure is simple and easy to install.

Further, the bearing body 25 is a deep groove ball bearing, which can be more suitable for the high rotating speed of the power output shaft 23 of the permanent magnet synchronous motor 2, and can reduce the manufacturing and using cost.

Further, motor casing body 21 and casing 1 are integrated into one piece structure, can make water pump 100 overall structure compacter, and the volume is littleer, and weight is littleer, portable more.

Further, the utility model provides a water pump 100 is still including crossing filter body 6, crosses filter body 6 and is used for the fixed open end of locating, and has laid the water hole on crossing filter body 6, crosses filter body 6 through the setting and can filter rivers back reentrant water pump 100, can prevent effectively that water pump 100 that aquatic solid foreign matter caused from blockking up, jamming, guarantees water pump 100 normal operating.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. A water pump, characterized by: the permanent magnet synchronous motor comprises a shell and a permanent magnet synchronous motor, wherein a water inlet end on the shell is opened and used for water inlet, and a water drainage end on the shell is opened and used for water drainage; the permanent magnet synchronous motor comprises a motor shell, a power generation assembly and a power output shaft, wherein the motor shell is arranged in the shell and forms a water passing channel with the inner wall of the shell, the water passing channel is communicated with the water inlet end and the water discharging end, the power generation assembly is arranged in the motor shell and is used for providing power and driving the power output shaft to rotate around the axis of the power output shaft, one end of the power output shaft is used for extending out of the motor shell and extending towards the direction close to the water inlet end, the power output shaft is used for being in sealing fit with the motor shell, an impeller is coaxially and fixedly arranged on the part of the power output shaft extending out of the motor shell, the impeller rotates to increase the speed of water flow entering the shell from the water inlet end, and a guide vane body is arranged in the shell, the guide vane body is arranged between the impeller and the drainage end and can convert part of kinetic energy of the water flow into static pressure energy; the water flow can flow through the water passage and reach the open end after passing through the impeller.

2. The water pump of claim 1, wherein: the guide vane body is arranged in the water passing channel and close to the impeller.

3. The water pump of claim 1, wherein: the motor casing includes motor casing body and motor end cover, the motor casing body is used for locating in the casing, just the outer wall of motor casing body with form between the inner wall of casing water channel, be used for on the motor casing body being close to the through-hole has been seted up to the one end of intaking the end, the motor end cover be used for with the through-hole shutoff, seted up on the motor end cover and enabled power output shaft passes through and forms rotation seal's mounting hole.

4. The water pump of claim 3, wherein: the permanent magnet synchronous motor also comprises a bearing body, wherein the hole wall of the mounting hole is fixedly and hermetically connected with the outer ring of the bearing body, and the inner ring of the bearing body is fixedly and hermetically connected with the outer side wall of the power output shaft; the outer side wall of the bearing body and the inner side wall of the bearing body can rotate relatively.

5. The water pump of claim 4, wherein: the bearing body is a deep groove ball bearing.

6. The water pump of claim 3, wherein: the motor casing body and the casing are of an integrally formed structure.

7. The water pump of claim 1, wherein: the water filtering device is characterized by further comprising a filtering body, wherein the filtering body is fixedly arranged at the opening end, and water passing holes are distributed in the filtering body.