阅读说明：本技术 一种切割式轴流水泵 (Cutting type axial flow water pump ) 是由 关胜波 覃芳 于 2021-09-23 设计创作，主要内容包括：本发明涉及流体机械领域,具体是指一种切割式轴流水泵,包括驱动电机及泵壳,所述泵壳靠近驱动电机一端为流体进口,所述驱动电机驱动端与泵轴轴连接,所述泵轴位于泵壳内部轴体外周面沿流体流向依次套设切割环及叶轮,所述切割环外周面与泵壳内壁固定连接,所述叶轮与泵轴外周面之间通过定位销固定,所述切割环环体内部设有刀片,所述刀片刀刃与设置于叶轮外周面的叶片底部贴合,与传统的轴流泵相比,增加的切割环装置,该装置可以有效的将水中的大块固体杂质进行切割粉碎,避免水轮由于大块固体杂质的卡瑟造成损坏,同时无需在轴流泵入口设置滤网,避免长期运行,水泵入口滤网堵塞,继而造成水轮汽蚀,出力下降,对水质要求低,适用范围广。(The invention relates to the field of fluid machinery, in particular to a cutting type axial flow water pump, which comprises a driving motor and a pump shell, wherein one end of the pump shell, which is close to the driving motor, is provided with a fluid inlet, the driving end of the driving motor is connected with a pump shaft, the pump shaft is positioned in the pump shell, the outer peripheral surface of a shaft body is sequentially sleeved with a cutting ring and an impeller along the flow direction of fluid, the outer peripheral surface of the cutting ring is fixedly connected with the inner wall of the pump shell, the impeller is fixed with the outer peripheral surface of the pump shaft through a positioning pin, a blade is arranged in a cutting ring body, the blade edge of the blade is attached to the bottom of the blade arranged on the outer peripheral surface of the impeller, compared with the traditional axial flow pump, the cutting ring device is additionally arranged, the cutting ring device can effectively cut and crush large solid impurities in water, the water wheel is prevented from being damaged due to the cassette of the large solid impurities, and meanwhile, a filter screen is not required to be arranged at the inlet of the axial flow pump to avoid long-term operation, the filter screen at the inlet of the water pump is blocked, so that the cavitation of the water wheel is caused, the output is reduced, the requirement on water quality is low, and the application range is wide.)

1. The utility model provides a cutting formula axial compressor water pump, includes driving motor (1) and pump case (2), pump case (2) are close to driving motor (1) one end and are fluid inlet, its characterized in that: the utility model discloses a cutting device, including driving motor (1), pump shaft (3), cutting ring (4) and impeller (5) are established to the cover in proper order along the fluid flow direction on the inside axis body outer peripheral face of pump case (2), cutting ring (4) outer peripheral face and pump case (2) inner wall fixed connection, it is fixed through the locating pin between impeller (5) and the pump shaft (3) outer peripheral face, cutting ring (4) ring body inside is equipped with blade (401), blade (401) cutting edge with set up in the laminating of the blade bottom of impeller (5) outer peripheral face.

2. The cutting type axial flow water pump according to claim 1, wherein: the pump case (2) entrance is equipped with connection piece (201), the connection piece (201) other end with be equipped with collar (202), collar (202) pass through bolt (9) and driving motor (1) fixed connection.

3. The cutting type axial flow water pump according to claim 1, wherein: an outlet pipe (7) is arranged at the outlet of the pump shell (2), and the pump shell (2) is in threaded connection with the outlet pipe (7).

4. The cutting type axial flow water pump according to claim 1, wherein: an outlet pipe (7) is arranged at the outlet of the pump shell (2), and the pump shell (2) is connected with the outlet pipe (7) through a flange.

5. The cutting type axial flow water pump according to claim 1, wherein: and the end part of the pump shaft (3) is provided with an installation sleeve (6) for fixing the impeller (5) along the axial direction.

6. The cutting type axial flow water pump according to claim 1, wherein: and a power line (8) is arranged at one end of the driving motor (1) close to the pump shell (2).

7. The cutting type axial flow water pump according to claim 1, wherein: the driving motor (1) adopts a permanent magnet brushless motor.

8. The cutting type axial flow water pump according to claim 1, wherein: the pump shell (2) is made of stainless steel, the cutting ring (4) and the impeller (5) body are made of alloy steel, and the surfaces of the cutting ring (4) and the impeller (5) are plated with chrome.

Technical Field

The invention relates to the field of fluid machinery, in particular to a cutting type axial flow water pump.

Background

The axial-flow pump is characterized in that the axial-flow pump enables liquid to be conveyed along the axial direction by means of acting force of blades of a rotating impeller on the liquid, the axial-flow pump is of a vertical type, a horizontal type, an inclined type and a cross-flow type, the axial-flow pump rotates in a circular tube-shaped pump shell, fixed guide vanes are arranged on the pump shell on the upper portion of the impeller and used for eliminating the rotating motion of the liquid, enabling the rotating motion to be changed into axial motion and converting kinetic energy of the rotating motion into pressure energy, and in a scene that the axial-flow pump is used in water conservancy projects, due to the fact that pumped water contains sundries, aquatic weeds and the like, if the pumped water cannot be cleaned in time after long-time use, a water inlet pipe is blocked, and the whole pumping effect is poor.

Disclosure of Invention

The invention aims to overcome the technical defects and provide a cutting type axial flow water pump.

In order to solve the technical problems, the technical scheme provided by the invention is a cutting type axial flow water pump which comprises a driving motor and a pump shell, wherein a fluid inlet is formed in one end, close to the driving motor, of the pump shell, the driving end of the driving motor is connected with a pump shaft, the pump shaft is positioned in the pump shell, a cutting ring and an impeller are sequentially sleeved on the outer circumferential surface of a shaft body in the pump shell along the flow direction of a fluid, the outer circumferential surface of the cutting ring is fixedly connected with the inner wall of the pump shell, the impeller and the outer circumferential surface of the pump shaft are fixed through a positioning pin, a blade is arranged in a cutting ring body, and the cutting edge of the blade is attached to the bottom of the blade arranged on the outer circumferential surface of the impeller.

As an improvement, a connecting sheet is arranged at the inlet of the pump shell, the other end of the connecting sheet is provided with a mounting ring, and the mounting ring is fixedly connected with the driving motor through a bolt.

As an improvement, an outlet pipe is arranged at the outlet of the pump shell, and the pump shell is in threaded connection with the outlet pipe.

As an improvement, an outlet pipe is arranged at an outlet of the pump shell, and the pump shell is connected with the outlet pipe through a flange.

As an improvement, the end part of the pump shaft is provided with a mounting sleeve for fixing the impeller along the axial direction.

As an improvement, one end of the driving motor, which is close to the pump shell, is provided with a power line.

As an improvement, the driving motor adopts a permanent magnet brushless motor.

As an improvement, the pump shell is made of stainless steel, the cutting ring and the impeller body are made of alloy steel, and chrome is plated on the surfaces of the cutting ring and the impeller.

Compared with the prior art, the invention has the advantages that:

1. compared with the traditional axial flow pump, the added cutting ring device can effectively cut and crush massive solid impurities in water, avoids the water wheels from being damaged due to the cassette of the massive solid impurities, does not need to arrange a filter screen at the inlet of the axial flow pump, avoids long-term operation, prevents the filter screen at the inlet of the water pump from being blocked, further causes cavitation of the water wheels, reduces output force, has low requirement on water quality and has wide application range;

2. can design into different size according to the use place of difference, both can be suitable for the drainage in small-size place, also can be used for the drainage of large-scale municipal works, when designing for small-size water pump, can use low pressure safety power, the axial-flow pump still has the flow big simultaneously, strong adaptability's advantage.

Drawings

FIG. 1 is a schematic view of the external structure of a water pump;

FIG. 2 is a schematic diagram of an exploded structure of the water pump;

fig. 3 is a schematic view of the internal connection structure of the water pump.

As shown in the figure: 1. the device comprises a driving motor, 2, a pump shell, 201, a connecting piece, 202, a mounting ring, 3, a pump shaft, 4, a cutting ring, 401, a blade, 5, an impeller, 6, a mounting sleeve, 7, an outlet pipe, 8, a power line, 9 and a bolt.

Detailed Description

The following describes a cutting type axial flow water pump according to the present invention in further detail with reference to the accompanying drawings.

With reference to fig. 1-3, a cutting type axial flow water pump includes a driving motor 1 and a pump case 2, a fluid inlet is formed at one end of the pump case 2 close to the driving motor 1, a driving end of the driving motor 1 is connected with a shaft of the pump shaft 3, the pump shaft 3 is located on the outer peripheral surface of a shaft body inside the pump case 2, and a cutting ring 4 and an impeller 5 are sequentially sleeved along the flow direction of a fluid, the outer peripheral surface of the cutting ring 4 is fixedly connected with the inner wall of the pump case 2, the impeller 5 is fixed with the outer peripheral surface of the pump shaft 3 through a positioning pin, a blade 401 is arranged inside a ring body of the cutting ring 4, and the cutting edge of the blade 401 is attached to the bottom of a blade arranged on the outer peripheral surface of the impeller 5.

As a preferred embodiment of the present embodiment, a connecting piece 201 is arranged at the inlet of the pump housing 2, the other end of the connecting piece 201 is provided with a mounting ring 202, and the mounting ring 202 is fixedly connected with the driving motor 1 through a bolt 9.

As the preferred embodiment of the embodiment, the outlet of the pump shell 2 is provided with the outlet pipe 7, and the pump shell 2 is in threaded connection with the outlet pipe 7.

As a preferred embodiment of the present embodiment, the outlet of the pump casing 2 is provided with an outlet pipe 7, and the pump casing 2 is connected with the outlet pipe 7 through a flange.

As a preferred embodiment of the present embodiment, the end of the pump shaft 3 is provided with a mounting sleeve 6 for fixing the impeller 5 in the axial direction.

As a preferred embodiment of the present embodiment, the driving motor 1 is provided with a power cord 8 at an end close to the pump housing 2.

As a preferred embodiment of the present embodiment, the driving motor 1 is a permanent magnet brushless motor.

In a preferred embodiment of the present invention, the pump casing 2 is made of stainless steel, the cutting ring 4 and the impeller 5 are made of alloy steel, and the cutting ring 4 and the impeller 5 are chrome-plated.

In the specific implementation of the invention, the driving motor 1 is started, the mounting ring 202 arranged at one end of the pump shell 2 is fixedly connected with the driving motor 1 through the bolt 9, fluid flows into the interior of the pump shell through the inlet of the pump shell 2, the cutting ring 4 is fixed with the interior of the pump shell 2, the impeller 5 fixed with the pump shaft 3 rotates, and when solid impurities in water flow through the cutting ring 4, the blades 401 and the blades of the impeller 5 rapidly cut and crush the fixed impurities.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.