CN110905848A

CN110905848A - Sealing structure of submersible pump

Info

Publication number: CN110905848A
Application number: CN201911119341.XA
Authority: CN
Inventors: 王子新
Original assignee: Xuzhou Sanyuan Industry Co Ltd
Current assignee: Xuzhou Sanyuan Industry Co Ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-03-24

Abstract

The invention discloses a submersible pump sealing structure which comprises a shell, wherein a water inlet pipe and a water outlet pipe are respectively welded on two sides of the shell, a plurality of fixing frames are fixed on the inner wall of the bottom of the shell through bolts, one side of each fixing frame is rotatably connected with a transmission rod, a plurality of impellers are fixed on one side of the transmission rod through bolts, a sealing device is arranged at the top of the shell and comprises a sealing cover, the sealing cover is fixed on the top of the shell through bolts, a partition plate is welded on the inner wall of one side of the sealing cover and is of an annular structure, and a limiting plate is welded on one side of the partition plate. The output rod can be protected at the outermost layer, the sealing ring can be matched with the sealing cover to seal the output rod, the sealing performance of the device is improved, the sealing reagent is injected into the limiting plate through the injection molding pipe, the sealing performance of the device is improved, impurities in water can be removed, and the water inlet pipe is prevented from being blocked by the impurities.

Description

Sealing structure of submersible pump

Technical Field

The invention relates to the technical field of submersible pumps, in particular to a submersible pump sealing structure.

Background

The submersible pump is a water treatment tool with wide application, and is different from a common water pump in that the submersible pump works underwater, most of the water pumps work on the ground, and a sealing structure is generally needed to ensure the sealing property during the production of the water pump.

Through the retrieval, grant publication number is CN 202176541U's patent, discloses a immersible pump seal structure, including the pump body, set up the quiet ring in pump body shaft hole inboard, the impeller fix on motor shaft, characterized by motor shaft on be equipped with interior dynamic seal ring, interior dynamic seal ring and motor shaft between sealed the setting, rotate along with motor shaft. The above patents suffer from the following disadvantages: the sealing performance is not good enough, the normal work of the submersible pump is easily influenced, and the requirements of people cannot be met.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a sealing structure of a submersible pump.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a submersible pump seal structure, includes the shell, inlet tube and outlet pipe have been welded respectively to the both sides of shell, have a plurality of mounts through the bolt fastening on the bottom inner wall of shell, and one side of mount is rotated and is connected with the transfer line, and one side of transfer line has a plurality of impellers through the bolt fastening, and the top of shell is equipped with sealing device, sealing device includes the sealed cowling, and the sealed cowling passes through the bolt fastening at the top of shell, the welding has the division board on one side inner wall of sealed cowling, and the division board is the loop configuration, one side welding of division board has the limiting plate, and one side welding of limiting plate has the inlet pipe, the pipe of moulding plastics has all been welded to the both sides of sealed.

Furthermore, a fixing opening is formed in the top of the sealing cover, and a sealing ring is bonded on the inner wall of the fixing opening.

Further, the inside of shell is equipped with the body, and the both sides of body all are equipped with the output lever.

Furthermore, the top of the output rod is inserted into the fixing port, and the output rod is in contact with the sealing ring.

Furthermore, a first tapered roller bearing is fixed at the bottom of the output rod through a bolt, a second tapered roller bearing is welded on one side of the transmission rod, and the first tapered roller bearing is in contact with the second tapered roller bearing.

Furthermore, one end of the water inlet pipe is fixed with a filter screen through a bolt.

Furthermore, a partition plate is fixed on the inner wall of one side of the shell through bolts and is positioned below the body.

The invention has the beneficial effects that:

1. the outmost protection can be carried out to the output rod through the setting of sealed cowling, and the setting of sealing ring can seal the output rod with the sealed cowling cooperation moreover, has improved the sealing performance of device.

2. The limiting plate can be conveniently fixed by the aid of the isolation plate, the isolation plate can be matched with the injection molding pipe after being fixed, and the injection molding pipe injects a sealing reagent into the limiting plate, so that the sealing performance of the device is improved.

3. The impurity of aquatic can be got rid of through the setting of filter screen panel, prevents that impurity from blockking up the inlet tube, influences the normal work of immersible pump, can separate water through the setting of baffle, prevents water and body contact, protects it.

Drawings

Fig. 1 is a schematic cross-sectional structural view of a sealing structure of a submersible pump according to the present invention.

Fig. 2 is an enlarged schematic structural diagram of a position a of the sealing structure of the submersible pump according to the present invention.

Fig. 3 is a schematic partial perspective view of a sealing structure of a submersible pump according to the present invention.

In the figure: the device comprises a shell 1, a fixing frame 2, a transmission rod 3, an impeller 4, a first conical roller bearing 5, a second conical roller bearing 6, a water inlet pipe 7, a filter screen cover 8, a partition plate 9, a body 10, an output rod 11, a sealing device 12, a water outlet pipe 13, a sealing cover 14, an injection molding pipe 15, a limiting plate 16, a partition plate 17 and a sealing ring 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a submersible pump sealing structure comprises a housing 1, a water inlet pipe 7 and a water outlet pipe 13 are welded on two sides of the housing 1 respectively, a plurality of fixing frames 2 are fixed on the inner wall of the bottom of the housing 1 through bolts, a transmission rod 3 is rotatably connected on one side of the fixing frames 2, a plurality of impellers 4 are fixed on one side of the transmission rod 3 through bolts, a sealing device 12 is arranged on the top of the housing 1, the sealing device 12 comprises a sealing cover 14, an outmost layer protection is carried out on an output rod 11 through the sealing cover 14, the sealing cover 14 is fixed on the top of the housing 1 through bolts, a separation plate 17 is welded on the inner wall of one side of the sealing cover 14, the separation plate 17 is of an annular structure, a limiting plate 16 is welded on one side of the separation plate 17, a feed pipe is welded on one side of the limiting plate 16, injection pipes 15, make things convenient for limiting plate 16 fixed through division board 17, can cooperate with injection molding pipe 15 after fixed moreover, pour into sealing agent into limiting plate 16 through injection molding pipe 15, improved the sealing performance of device.

Open at the top of sealed cowling 14 has the fixed mouthful, and it has sealing ring 18 to bond on the inner wall of fixed mouthful, the inside of shell 1 is equipped with body 10, and the both sides of body 10 all are equipped with output rod 11, the top of output rod 11 is pegged graft in the fixed mouthful, output rod 11 contacts with sealing ring 18, output rod 11's bottom has first tapered roller bearing 5 through the bolt fastening, and one side welding of transfer line 3 has second tapered roller bearing 6, first tapered roller bearing 5 and second tapered roller bearing 6 contact, the one end of inlet tube 7 has filter screen panel 8 through the bolt fastening, impurity in the aquatic is got rid of through filter screen panel 8, prevent that impurity from blockking up inlet tube 7, there is baffle 9 through the bolt fastening on the inner wall of one side of shell 1, separate water through baffle 9, prevent water and body 1 contact, and the baffle is located the below of body 10.

The working principle is as follows: when output rod 11 rotates, carry out outmost protection to output rod 11 through sealed cowling 14, and sealing ring 18 and the cooperation of sealed cowling 14, seal output rod 11, make things convenient for the fixed of limiting plate 16 through division board 17, and can cooperate with injection molding pipe 15 after fixed, inject sealed reagent into limiting plate 16 through injection molding pipe 15, the sealing performance of device has been improved, during the delivery water, impurity through filtering screen panel 8 removal aquatic, prevent that impurity from blockking up inlet tube 7, influence the normal work of immersible pump, separate water through baffle 9, prevent water and body 1 contact.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", "first", "second", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A submersible pump sealing structure comprises a shell (1), wherein a water inlet pipe (7) and a water outlet pipe (13) are respectively arranged on two sides of the shell (1), a plurality of fixing frames (2) are fixedly connected on the inner wall of the bottom of the shell (1), a transmission rod (3) is rotatably connected on one side of each fixing frame (2), a plurality of impellers (4) are fixedly connected on one side of the transmission rod (3), and a sealing device (12) is arranged at the top of the shell (1), the submersible pump sealing structure is characterized in that the sealing device (12) comprises a sealing cover (14), the sealing cover (14) is fixed on the top of the shell (1) through bolts, a partition plate (17) is arranged on the inner wall of one side of the sealing cover (14), the partition plate (17) is of an annular structure, a limiting plate (16) is arranged on one side of the partition plate (17), a feed pipe is arranged on one side of the limiting plate (16, one end of the injection molding pipe (15) is inserted in the feeding pipe.

2. A sealing structure for a submersible pump according to claim 1, characterized in that the top of the sealing cover (14) is provided with a fixing opening, and the inner wall of the fixing opening is bonded with a sealing ring (18).

3. A submersible pump sealing structure according to claim 2, characterized in that the housing (1) is provided with a body (10) inside, and the body (10) is provided with an output rod (11) on both sides.

4. A submersible pump sealing structure according to claim 3, characterized in that the top of the output rod (11) is inserted in a fixing port, and the output rod (11) is in contact with the sealing ring (18).

5. A submersible pump sealing structure according to claim 3, characterized in that a first tapered roller bearing (5) is fixedly connected to the bottom of the output rod (11), and a second tapered roller bearing (6) is arranged on one side of the transmission rod (3), and the first tapered roller bearing (5) and the second tapered roller bearing (6) are in contact.

6. A submersible pump sealing structure according to claim 1, characterized in that one end of the water inlet pipe (7) is fixedly connected with a filter screen (8).

7. A sealing structure for a submersible pump according to claim 3, characterized in that a partition (9) is fixedly connected to one side of the inner wall of the housing (1) and is located below the body (10).