CN217029324U

CN217029324U - Mounting structure of multistage middle-open pump shell

Info

Publication number: CN217029324U
Application number: CN202220218927.2U
Authority: CN
Inventors: 蒋敦军; 杨小雄; 高建梅; 王亚雄; 向庆
Original assignee: Hunan Credo Pump Co ltd
Current assignee: Hunan Credo Pump Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-07-22
Anticipated expiration: 2032-01-26

Abstract

The utility model discloses a multistage middle open pump shell mounting structure which comprises a pump cover and a pump body, wherein the pump cover and the pump body are both provided with semi-cylindrical cavities, the pump cover and the pump body are arranged in a butt joint mode, and the pump cover and the pump body are surrounded to form an accommodating cavity; an upper partition plate is arranged in the pump cover, a lower partition plate is arranged in the pump body, and the upper partition plate and the lower partition plate are arranged in a butt joint mode so as to divide the accommodating cavity into a first cavity and a second cavity; the upper end part of the pump cover is respectively provided with a water outlet port and a water inlet port, and the water outlet port is connected with the water inlet port through an external connecting pipe. According to the utility model, the pump cover and the pump body are arranged in a butt joint manner, the water outlet port and the water inlet port are formed on the pump cover in a matched manner, the water outlet port and the water inlet port are connected by the connecting pipe, and the connecting pipe, the pump cover and the pump body are respectively and independently manufactured, so that the casting process difficulty of the pump cover and the pump body is reduced, and the reliability of the structure of the pump cover and the pump body is improved.

Description

Mounting structure of multistage middle-open pump shell

Technical Field

The utility model relates to the technical field of split pumps, in particular to a multi-stage split pump shell mounting structure.

Background

The mode that current well turn-on pump adopted the pump body to dock with the pump cover realizes the installation, and the inner space that the pump body and pump cover dock and form sets up a plurality of runners in order to supply liquid to flow through to from the delivery port outflow, also can have the accommodation space simultaneously and place in order to supply pivot and impeller, and provide the energy for liquid.

Because the body of the existing pump body or pump cover can be directly cast with the liquid flow channel, namely the liquid flow channel and the pump body or pump cover are cast into a whole, the thickness of the pump body or pump cover can be increased to facilitate the pump body or pump cover to open the liquid flow channel, thereby improving the casting difficulty of the pump body or pump cover and being not beneficial to the improvement of the production efficiency; in addition, once casting residues exist in the liquid flow passage on the pump body or the pump cover, the casting residues are difficult to find and process in practical engineering.

It is therefore desirable to provide a mounting structure for a multi-stage pump split housing to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a multistage pump casing installation structure with a simple structure, which can reduce the casting difficulty of the pump body or the pump cover, aiming at the defects of the prior art.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: a multi-stage middle-open pump shell mounting structure comprises a pump cover and a pump body, wherein the pump cover and the pump body are both provided with semi-cylindrical cavities, the pump cover and the pump body are arranged in a butt joint mode, and an accommodating cavity is formed by surrounding the pump cover and the pump body; an upper partition plate is arranged in the pump cover, a lower partition plate is arranged in the pump body, and the upper partition plate and the lower partition plate are arranged in a butt joint mode to divide the accommodating cavity into a first cavity and a second cavity; the upper end part of the pump cover is respectively provided with a water outlet port and a water inlet port, the water outlet port is communicated with the first cavity, and the water inlet port is communicated with the second cavity; the water outlet port is connected with the water inlet port through an external connecting pipe.

In one embodiment, the pump cover and the pump body are both of a semi-cylindrical structure, and the pump cover and the pump body are both provided with a semi-cylindrical cavity, the accommodating cavity is composed of the semi-cylindrical cavity of the pump cover and the semi-cylindrical cavity of the pump body, and the accommodating cavity is of a cylindrical structure.

In one embodiment, the pump cover is provided with a water outlet pipe at the water outlet port, the pump cover is provided with a water inlet pipe at the water inlet port, the water outlet pipe and the water supply pipe are provided with flanges at the ends, two ends of the connecting pipe are respectively provided with a connecting flange, and the flange and the connecting flange are fixed together through a second bolt.

In one embodiment, the flange plate and the connecting flange are provided with fixing holes at intervals, and the second bolt is clamped in the fixing holes.

In one embodiment, the pump further comprises a first bearing seat, a second bearing seat and a rotating shaft, wherein supporting parts are arranged at two ends of the pump body, the first bearing seat and the second bearing seat are respectively arranged on the supporting parts at two ends of the pump body, and two ends of the rotating shaft are respectively clamped on the first bearing seat and the second bearing seat and are placed in the accommodating cavity.

In one embodiment, a first fixing lug extends outwards from the peripheral side of the first bearing seat, a second fixing lug extends outwards from the peripheral side of the second bearing seat, and the first fixing lug and the second fixing lug are both in a semicircular structure; the first fixing lug and the second fixing lug are respectively connected with the side part of the pump body through a first bolt.

In one of them embodiment, be provided with the impeller on the pivot, the impeller overcoat is equipped with the stator, the stator is fixed to be set up in the holding cavity, the stator is used for carrying out the water conservancy diversion with the liquid that the impeller was carried over.

In one embodiment, the first chamber is sequentially divided into a primary water suction chamber, a plurality of first flow channels and an intermediate flow channel by the guide vanes in the first chamber, the second chamber is sequentially divided into a secondary water suction chamber, at least one second flow channel and a water outlet flow channel by the guide vanes in the second chamber, a water suction port and a water outlet port are formed in the pump body, the water suction port is communicated with the primary water suction chamber, the water outlet port is communicated with the water outlet flow channel, the water outlet port is communicated with the intermediate flow channel, and the water inlet port is communicated with the secondary water suction chamber.

In one embodiment, an upper butt-joint projection extends from the periphery of the pump cover, a lower butt-joint projection extends from the periphery of the pump body, a plurality of butt-joint holes are respectively formed in the upper butt-joint projection and the lower butt-joint projection at intervals, the pump cover and the pump body are connected through a third bolt, and the third bolt is clamped in the butt-joint holes of the upper butt-joint projection and the lower butt-joint projection.

In one embodiment, the bottom end part of the outer side of the pump body is provided with a supporting mechanism, the supporting mechanism comprises a first supporting block arranged at two ends of the bottom end part of the pump body and a second supporting block arranged in the middle of the bottom end part of the pump body, and the second supporting block is in a cross-shaped structure.

In conclusion, the multistage split pump shell mounting structure provided by the utility model has the advantages that the pump cover and the pump body are arranged in a butt joint manner, the water outlet port and the water inlet port are formed on the pump cover in a matching manner, the water outlet port and the water inlet port are connected by the connecting pipe, and the connecting pipe, the pump cover and the pump body are respectively and independently manufactured, so that the casting process difficulty of the pump cover and the pump body is reduced, and the reliability of the pump cover and the pump body structure is improved; in addition, the roughness of the inner surface of the connecting pipe is obviously reduced, and the energy loss caused by the friction between the conveying flow channel and the liquid is favorably reduced.

Drawings

FIG. 1 is a schematic structural view of a multistage split pump housing mounting structure according to the present invention;

FIG. 2 is a schematic structural view of a multistage split pump casing mounting structure of the present invention after an upper casing is hidden;

FIG. 3 is a sectional view of the multistage pump casing mounting structure of the present invention;

FIG. 4 is a schematic view of a pump cover according to the present invention;

FIG. 5 is a schematic view of the pump body of the present invention;

FIG. 6 is a schematic view of another aspect of the pump body of the present invention;

FIG. 7 is a schematic view of an assembly of a first bearing housing, a second bearing housing and a rotating shaft according to the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 7, the multi-stage axially split pump casing mounting structure of the present invention includes a pump cover 100, a pump body 200, a first bearing block 300, a second bearing block 400, and a rotating shaft 500, where the pump cover 100 and the pump body 200 are both in a semi-cylindrical structure, the pump cover 100 and the pump body 200 are both provided with semi-cylindrical cavities, the pump cover 100 and the pump body 200 are in butt joint, the pump cover 100 and the pump body 200 enclose to form an accommodating cavity 600, the accommodating cavity 600 is composed of the semi-cylindrical cavity of the pump cover 100 and the semi-cylindrical cavity of the pump body 200, and the accommodating cavity 600 is in a cylindrical structure.

An upper partition plate 110 is arranged in the pump cover 100, a lower partition plate 210 is arranged in the pump body 200, the upper partition plate 110 is in butt joint with the lower partition plate 210 so as to divide the accommodating cavity 600 into a first cavity 610 and a second cavity 620, and the rotating shaft 500 penetrates through the upper partition plate 110 and the lower partition plate 210; the upper end of the pump cover 100 is respectively provided with a water outlet 120 and a water inlet 130, the water outlet 120 is communicated with the first chamber 610, and the water inlet 130 is communicated with the second chamber 620; the water outlet port 120 and the water inlet port 130 are connected through an external connection pipe 700, and the connection pipe 700 is an n-shaped pipe structure; the pump cover 100 and the pump body 200 are arranged into semi-cylindrical structures, semi-cylindrical cavities are arranged on the pump cover 100 and the pump body 200 in a matched mode, and then the external connecting pipe 700 is utilized to be respectively communicated with the water outlet port 120 and the water inlet port 130, so that on the basis of ensuring the communication of the pump-in liquid conveying flow channels, the difficulty in casting processes of the pump cover 100 and the pump body 200 is reduced, and the structural reliability of the pump cover 100 and the pump body 200 is improved; in addition, the connecting pipe 700, the pump cover 100 and the pump body 200 are separately manufactured, so that the difficulty in casting the pump cover 100 and the pump body 200 is reduced, and the structural reliability of the pump cover 100 and the pump body 200 is improved; in addition, the roughness of the inner surface of the connecting pipe 700 is obviously reduced, which is beneficial to reducing the energy loss caused by the friction between the conveying flow channel and the liquid.

The pump cover 100 is provided with the water outlet pipe 140 at the water outlet port 120, the pump cover 100 is provided with the water inlet pipe 150 at the water inlet port 130, the water outlet pipe 140 and the water supply pipe end are both provided with the flange plate 101, the two ends of the connecting pipe 700 are respectively provided with the connecting flange 710, the flange plate 101 and the connecting flange 710 are fixed together through the second bolt 102, so that the connecting pipe 700 and the pump cover 100 are connected, the connecting pipe 700, the pump cover 100 and the pump body 200 are respectively manufactured independently, the casting process difficulty of the pump cover 100 and the pump body 200 is reduced, and the structural reliability of the pump cover 100 and the pump body 200 is improved; in addition, the roughness of the inner surface of the connecting pipe 700 is obviously reduced, which is beneficial to reducing the energy loss caused by the friction between the conveying flow channel and the liquid.

Specifically, the flange plate 101 and the connecting flange 710 are provided with fixing holes 103 at intervals, and the second bolts 102 are clamped in the fixing holes 103, so that the fixing operation of the flange plate 101 and the connecting flange 710 is realized, the connecting pipe 700, the pump cover 100 and the pump body 200 are manufactured separately, the difficulty in the casting process of the pump cover 100 and the pump body 200 is reduced, and the structural reliability of the pump cover 100 and the pump body 200 is improved; in addition, the roughness of the inner surface of the connecting pipe 700 is obviously reduced, which is beneficial to reducing the energy loss caused by the friction between the conveying flow channel and the liquid.

The two ends of the pump body 200 are provided with supporting portions 220, the first bearing seat 300 and the second bearing seat 400 are respectively arranged on the supporting portions 220 at the two ends of the pump body 200, and the two ends of the rotating shaft 500 are respectively clamped on the first bearing seat 300 and the second bearing seat 400 and are arranged in the accommodating cavity 600; a first fixing protrusion 310 extends from the periphery of the first bearing seat 300, a second fixing protrusion 410 extends from the periphery of the second bearing seat 400, and the first fixing protrusion 310 and the second fixing protrusion 410 are both semi-circular structures so as to be consistent with the cross-sectional shape of the side portion of the pump body 200; the first fixing protrusion 310 and the second fixing protrusion 410 are respectively connected to the side of the pump body 200 through the first bolt 201, so as to improve the stability of the connection between the first bearing housing 300 and the pump body 200 and the second bearing housing 400.

Be provided with impeller 510 on the pivot 500, the impeller 510 overcoat is equipped with stator 800, stator 800 is fixed to be set up in holding cavity 600, stator 800 is used for carrying the liquid of coming with impeller 510 and carries out the water conservancy diversion, and then makes things convenient for the impeller 510 of different levels to rotate the doing work effect that realizes liquid.

In one embodiment, the plurality of guide vanes 800 in the first chamber 610 sequentially divide the first chamber 610 into a primary water suction chamber 611, a plurality of first flow channels 612 and a middle flow channel 613, the plurality of guide vanes 800 in the second chamber 620 sequentially divide the second chamber 620 into a secondary water suction chamber 621, at least one second flow channel 622 and a water outlet flow channel 623, the pump body 200 is provided with a water suction port 230 and a water outlet port 240, the water suction port 230 is communicated with the primary water suction chamber 611, the water outlet port 240 is communicated with the water outlet flow channel 623, the water outlet port 120 is communicated with the middle flow channel 613, and the water inlet port 130 is communicated with the secondary water suction chamber 621.

In one embodiment, an upper abutment protrusion 160 extends circumferentially outward from the pump cover 100, a lower abutment protrusion 250 extends circumferentially outward from the pump body 200, a plurality of abutment holes 161/251 are respectively formed in the upper abutment protrusion 160 and the lower abutment protrusion 250 at intervals, and the pump cover 100 and the pump body 200 are connected by a third bolt 104; specifically, the third bolt 104 is clamped in the abutting hole 161/251 of the upper abutting convex block 160 and the lower abutting convex block 250, so that the pump cover 100 and the pump body 200 are stably abutted.

In the utility model, the upper butt-joint projection 160 and the lower butt-joint projection 250 are both horizontally arranged, so that the difficulty in the casting process of the upper shell and the pump body 200 is reduced, the manufacturing efficiency of the upper shell and the pump body 200 is improved, and in addition, the working reliability of the split pump is also favorably improved.

In one embodiment, the bottom end of the outer side of the pump body 200 is provided with a supporting mechanism 900, and the supporting mechanism 900 is used for supporting a central pump; specifically, the supporting mechanism 900 includes first supporting blocks 910 disposed at two ends of the bottom end of the pump body 200 and second supporting blocks 920 disposed in the middle of the bottom end of the pump body 200, so as to improve the stability of the middle-open pump during operation; the second supporting block 920 has a cross-shaped structure, so that the stability of the axially split pump during operation is further enhanced.

When the pump is specifically assembled, the guide vanes 800 are firstly sleeved at the outer side part of the impeller 510 of the rotating shaft 500, then the two ends of the rotating shaft 500 are respectively fixed on the first bearing seat 300 and the second bearing seat 400, then the first bearing seat 300 and the second bearing seat 400 are respectively fixed at the two ends of the pump body 200, then the pump cover 100 and the pump body 200 are in butt joint, and finally the connecting pipe 700 is respectively fixed on the water outlet pipe 140 and the flange plate 101 of the water inlet pipe 150 through the second bolt 102, so that the communication effect of the connecting pipe 700 and the accommodating cavity 600 is realized, the connecting pipe 700, the pump cover 100 and the pump body 200 are respectively and independently manufactured, the difficulty in the casting process of the pump cover 100 and the pump body 200 is reduced, and the reliability of the structures of the pump cover 100 and the pump body 200 is improved; in addition, the roughness of the inner surface of the connecting pipe 700 is obviously reduced, which is beneficial to reducing the energy loss caused by the friction between the conveying flow channel and the liquid; further, when casting residue is present in connection pipe 700, the process of treating the casting residue in connection pipe 700 is facilitated.

In summary, in the multi-stage pump cover mounting structure of the utility model, the pump cover 100 and the pump body 200 are arranged in a butt joint manner, the water outlet port 120 and the water inlet port 130 are arranged on the pump cover 100 in a matching manner, the water outlet port 120 and the water inlet port 130 are connected by the connecting pipe 700, and the connecting pipe 700, the pump cover 100 and the pump body 200 are respectively and independently manufactured, so that the difficulty in the casting process of the pump cover 100 and the pump body 200 is reduced, and the reliability of the structure of the pump cover 100 and the pump body 200 is improved; in addition, the roughness of the inner surface of the connecting pipe 700 is obviously reduced, which is beneficial to reducing the energy loss caused by the friction between the conveying flow channel and the liquid.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the utility model, and these changes and modifications are all within the scope of the utility model. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a pump case mounting structure opens in multistage which characterized in that: the pump cover and the pump body are provided with semicircular cylindrical cavities, the pump cover and the pump body are arranged in a butt joint mode, and the pump cover and the pump body are surrounded to form an accommodating cavity; an upper partition plate is arranged in the pump cover, a lower partition plate is arranged in the pump body, and the upper partition plate and the lower partition plate are arranged in a butt joint mode so as to divide the accommodating cavity into a first cavity and a second cavity; the upper end part of the pump cover is respectively provided with a water outlet port and a water inlet port, the water outlet port is communicated with the first cavity, and the water inlet port is communicated with the second cavity; the water outlet port is connected with the water inlet port through an external connecting pipe.

2. The mounting structure of a multistage split pump casing according to claim 1, wherein: the pump cover and the pump body are semi-cylindrical structures, the holding cavity comprises the semi-cylindrical cavity of the pump cover and the semi-cylindrical cavity of the pump body, and the holding cavity is cylindrical structures.

3. The multistage split pump casing mounting structure according to claim 1 or 2, wherein: the pump cap is provided with the outlet pipe in outlet port department, the pump cap is provided with the inlet tube in inlet port department, outlet pipe and feed pipe tip all are provided with the ring flange, the connecting pipe both ends are provided with flange respectively, ring flange and flange pass through the second bolt fastening and are in the same place.

4. The mounting structure for a multistage split pump housing according to claim 3, wherein: fixing holes are formed in the flange plate and the connecting flange at intervals, and the second bolts are clamped in the fixing holes.

5. The mounting structure of a multistage split pump housing according to claim 1 or 2, wherein: the pump further comprises a first bearing seat, a second bearing seat and a rotating shaft, wherein supporting parts are arranged at two ends of the pump body, the first bearing seat and the second bearing seat are respectively arranged on the supporting parts at two ends of the pump body, and two ends of the rotating shaft are respectively clamped on the first bearing seat and the second bearing seat and are arranged in the accommodating cavity.

6. The mounting structure of a multistage split pump casing according to claim 5, wherein: a first fixing lug extends outwards from the peripheral side of the first bearing seat, a second fixing lug extends outwards from the peripheral side of the second bearing seat, and the first fixing lug and the second fixing lug are both in a semicircular structure; the first fixing lug and the second fixing lug are respectively connected with the side part of the pump body through a first bolt.

7. The mounting structure of a multistage split pump casing according to claim 5, wherein: be provided with the impeller in the pivot, the impeller overcoat is equipped with the stator, the stator is fixed to be set up in the holding cavity, the stator is used for carrying the liquid that comes with the impeller and carries out the water conservancy diversion.

8. The mounting structure for a multistage split pump housing according to claim 7, wherein: be in a plurality of in first cavity the stator is cut apart into first order water absorption chamber, a plurality of first runner and middle runner with first cavity in proper order, is in a plurality of in the second cavity the stator is cut apart into secondary water absorption chamber, at least one second runner and outlet channel with the second cavity in proper order, water sucking mouth and delivery port have been seted up on the pump body, water sucking mouth and first order water absorption chamber intercommunication set up, delivery port and outlet channel intercommunication set up, outlet port and middle runner intercommunication set up, inlet port and secondary water absorption chamber intercommunication set up.

9. The multistage split pump casing mounting structure according to claim 1 or 2, wherein: the pump cover is characterized in that an upper butt joint lug extends outwards on the peripheral side of the pump cover, a lower butt joint lug extends outwards on the peripheral side of the pump body, a plurality of butt joint holes are formed in the upper butt joint lug and the lower butt joint lug at intervals respectively, the pump cover is connected with the pump body through a third bolt, and the third bolt is clamped in the butt joint holes of the upper butt joint lug and the lower butt joint lug.

10. The mounting structure of a multistage split pump housing according to claim 1 or 2, wherein: the bottom end part of the outer side of the pump body is provided with a supporting mechanism, the supporting mechanism comprises first supporting blocks arranged at two ends of the bottom end part of the pump body and a second supporting block arranged in the middle of the bottom end part of the pump body, and the second supporting block is of a cross structure.