Stamping stainless steel peripheral pump

Abstract

The utility model discloses a stamping stainless steel peripheral pump which comprises a motor, a pump body and a support, an impeller is arranged in the pump body, the motor drives the impeller to rotate, the support comprises a base body and an insert, the insert is located on the side, close to the impeller, of the base body, and the surface of the insert and the inner wall of the pump body form a cavity allowing media to flow. The insert and the pump body are stainless steel bodies formed by stamping, and a runner of an inner cavity of the pump body is formed by stamping through a die, so that the runner is smoother, and the size precision of the runner is higher; the pump body is high in runner smoothness and stable in runner size, so that the problem that the performance of the water pump is unstable is solved, the performance stability of a product is improved, the market share of the product is improved, the pump body and the insert are made of stainless steel plates through one-time punch forming, the weight is lighter, and the cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of vortex pumps, and in particular to a stamped stainless steel vortex pump. Background Technology

[0002] The working principle of a vortex pump is based on the centrifugal force and vortex motion generated by the rotation of the impeller. The impeller has multiple radially arranged blades. When the impeller rotates inside the pump casing, the blades push the liquid to rotate, giving the liquid centrifugal force. A high-speed rotating liquid ring, called a vortex, is formed on the outer circumference of the impeller. Due to the gap between the impeller and the pump casing, the liquid, under the action of the vortex, undergoes a spiral motion within the annular space between the impeller and the pump casing. Simultaneously, driven by the blades, the liquid is drawn in from the suction port and flows towards the discharge port.

[0003] A vortex pump mainly consists of a motor, pump body, impeller, and support. The support is located between the motor and the pump body and connects the two. The impeller is installed inside the pump body. Currently, the pump body and support of vortex pumps are usually formed by traditional casting. The castings are heavy and have a rough surface, resulting in low hydraulic efficiency, which is not conducive to improving product performance and efficiency. Utility Model Content

[0004] To further improve the smoothness of the flow channel and hydraulic efficiency, this application provides a stamped stainless steel vortex pump.

[0005] This application provides a stamped stainless steel vortex pump, which adopts the following technical solution:

[0006] A stamped stainless steel vortex pump includes a motor, a pump body, and a support. An impeller is disposed in the pump body, and the motor drives the impeller to rotate. The support includes a base and an insert. The insert is located on the side of the base near the impeller. The surface of the insert and the inner wall of the pump body form a chamber for the flow of medium. Both the insert and the pump body are stamped stainless steel bodies.

[0007] Optionally, the substrate is an aluminum part, and the substrate and the insert are fixed by aluminum die casting.

[0008] Optionally, the base has a protrusion at its center, and the insert fits onto the protrusion to accommodate it.

[0009] Optionally, the substrate has a positioning groove adapted to the insert.

[0010] Optionally, the insert has a notch on its outer periphery, and the base has a limiting part in the corresponding positioning groove that is adapted to the notch.

[0011] Optionally, the bottom end of the insert has a protruding edge that matches the positioning groove, and a sealing ring is fitted on the corresponding protruding edge of the insert, with the sealing ring abutting against the insert and the inner wall of the pump body respectively.

[0012] Optionally, the substrate has multiple hollowed-out grooves, which are evenly distributed around the circumference.

[0013] Optionally, the pump body has an inlet and an outlet, with an inlet connector laser-welded to the inlet and an outlet connector laser-welded to the outlet.

[0014] Optionally, the outer periphery of the base is provided with a lug, and multiple lugs are evenly distributed around the circumference. The lug is provided with a mounting hole, and a connecting bolt is inserted into the mounting hole. The connecting bolt connects the lug, the motor housing, and the motor rear cover.

[0015] Optionally, the pump body has a water inlet at the top, which is connected to the chamber, and a removable plug is provided at the water inlet.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. The pump body is made of stainless steel sheet by stamping in one piece, and the inlet and outlet connectors are laser welded, making the pump body lighter and reducing the weight by 65% ​​compared to stainless steel castings; thus, the cost is lower.

[0018] 2. The overall machining amount after the pump body is stamped is reduced by 90% compared with stainless steel castings, resulting in lower costs;

[0019] 3. The flow channel of the pump body cavity is formed by die stamping, which makes the flow channel smoother and the flow channel dimension accuracy higher. Due to the high smoothness of the flow channel and the stable flow channel dimension, the problem of unstable water pump performance is solved, the product performance stability is improved, and the product market share is increased.

[0020] 4. The inserts of the bracket are made of stainless steel by one-time stamping and then integrally formed with the base by aluminum die casting process, which is firm and will not loosen; the whole is machined in one piece, which reduces the amount of processing by 10% compared with stainless steel casting, making it lighter and 50% lighter, and lower in cost.

[0021] 5. The support structure formed by combining aluminum parts and stainless steel has a smoother flow channel, higher precision, better performance stability, and a much lower overall weight compared to stainless steel casting supports.

[0022] 6. All surfaces of the chambers in contact with the medium are made of stainless steel. The medium is transported entirely within the stainless steel chambers, ensuring that there is no secondary contamination or rust spots. Attached Figure Description

[0023] Figure 1 This is an overall structural diagram of an embodiment of this application.

[0024] Figure 2 This is a cross-sectional view of an embodiment of this application.

[0025] Figure 3 This is a structural diagram of the bracket in an embodiment of this application.

[0026] Figure 4 This is an exploded view of the bracket in the embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Pump body; 2. Bracket; 3. Motor; 4. Chamber; 5. Impeller; 6. Center hole; 7. Inlet; 8. Outlet; 9. Inlet connector; 10. Outlet connector; 11. Water inlet; 12. Plug; 13. Base; 14. Insert; 15. Protrusion; 16. Flow channel surface; 17. Positioning groove; 18. Notch; 19. Limiting part; 20. Raised edge; 21. Sealing ring; 22. Hollowed-out groove; 23. Lug; 24. Mounting hole; 25. Connecting bolt; 26. Housing; 27. Rear cover. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0030] A stamped stainless steel vortex pump, such as Figure 1 and Figure 2 As shown, the pump includes a pump body 1, a support 2, and a motor 3. The support 2 is located between the motor 3 and the pump body 1 and connects the two. One side of the support 2 extends into the pump body 1. The inner wall of the pump body 1 and the outer wall of the support 2 form a chamber 4 for media flow. An impeller 5 is installed in the pump body 1 corresponding to the chamber 4. A central hole 6 is opened in the center of the support 2. The output shaft of the motor 3 passes through the central hole 6 of the support 2 and extends into the chamber 4 to connect with the impeller 5. The motor 3 drives the impeller 5 to rotate to realize the transport and flow of the media. An inlet 7 communicating with the chamber 4 is provided on one side of the pump body 1, and an outlet 8 communicating with the chamber 4 is provided on one side of the pump body 1. An inlet connector 9 is laser-welded to the pump body 1 corresponding to the inlet 7, and an outlet connector 10 is laser-welded to the pump body 1 corresponding to the outlet 8. The inlet connector 9, the outlet connector 10, and the pump body 1 can be processed and produced independently, reducing complexity and simplifying the manufacturing difficulty of the pump body 1.

[0031] like Figure 1 As shown, a water inlet 11 communicating with the internal chamber 4 is provided on the top of the pump body 1. A detachable plug 12 is provided at the water inlet 11. The plug 12 is detachably connected to the pump body 1. In this embodiment, the plug 12 is threadedly connected to the pump body 1. The design of the water inlet 11 facilitates the addition of water to the chamber 4 when the pump body 1 is started. Opening the water inlet 11 also helps to expel the gas present inside the pump body 1, so that the pump body 1 can be used better.

[0032] like Figures 2-4As shown, the support 2 includes a base 13 and an insert 14. The center of the base 13 has a protrusion 15. The insert 14 is fitted onto the protrusion 15 and is adapted to its shape. The side surface of the insert 14 away from the base 13 is the flow channel surface 16. In this embodiment, both the insert 14 and the pump body 1 are stainless steel bodies formed by stamping stainless steel plates. This makes the overall weight much lighter than that of stainless steel casting, and the forming is easy and simple, reducing production costs. In addition, the surface of the chamber 4 that comes into contact with the medium is all stainless steel. The medium is transported entirely within the stainless steel chamber 4, ensuring that the transported medium is free from secondary pollution and rust spots.

[0033] like Figure 3 and Figure 4 As shown, the base 13 is made of aluminum. In the actual production process, the base 13 and the insert 14 are fixed together by aluminum die casting process. That is, the pre-stamped insert 14 is put into the mold, and then the base 13 and the insert 14 are firmly connected by aluminum die casting. The connection is firm and does not loosen. In addition, the aluminum part is relatively light, which further reduces the weight.

[0034] like Figure 3 and Figure 4 As shown, the base 13 has a positioning groove 17 that is adapted to the insert 14. The positioning groove 17 facilitates the good combination and positioning of the insert 14 and the base 13. The insert 14 has a notch 18 on its outer periphery, and multiple notches 18 are evenly distributed around the circumference. At the same time, the base 13 has a limiting part 19 that is adapted to the notch 18 at the corresponding positioning groove 17. In this embodiment, both the notch 18 and the limiting part 19 are semi-circular. The cooperation between the notch 18 and the limiting part 19 achieves circumferential limiting and prevents the two from being displaced relative to each other in the circumferential direction.

[0035] like Figure 2 and Figure 3 As shown, the bottom end of the insert 14 has a protruding edge 20 that matches the positioning groove 17, and the insert 14 is fitted with a sealing ring 21 corresponding to the protruding edge 20. In actual use, the sealing ring 21 is located between the pump body 1 and the insert 14 and is compressed to achieve a good seal at the connection, ensuring that the medium flows in the chamber 4 and does not leak to other areas.

[0036] like Figure 3 and Figure 4 As shown, a recessed hollowed-out groove 22 is provided on the outer periphery of the bottom of the substrate 13. Multiple hollowed-out grooves 22 are evenly distributed around the circumference. This can reduce the material used in the substrate 13, save material costs, and reduce weight. In addition, it can release internal stress, making the surface of the substrate 13 smoother after molding, and can also improve the structural strength to a certain extent.

[0037] like Figure 2 and Figure 3As shown, a lug 23 is protruding on the outer periphery of the base 13, and a through mounting hole 24 is opened on the lug 23. Multiple lugs 23 are evenly distributed around the circumference. In actual use, a connecting bolt 25 is inserted through the mounting hole 24. The connecting bolt 25 connects the lug 23, the housing 26 of the motor 3, and the rear cover 27 of the motor 3. In this way, multiple components can be connected and fixed at the same time by means of the connecting bolt 25, which effectively simplifies the connection structure, reduces the number of connecting parts, and effectively improves the disassembly and assembly efficiency.

[0038] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stamped stainless steel vortex pump, characterized in that: The pump includes a motor (3), a pump body (1), and a bracket (2). An impeller (5) is installed inside the pump body (1). The motor (3) drives the impeller (5) to rotate. The bracket (2) includes a base (13) and an insert (14). The insert (14) is located on the side of the base (13) close to the impeller (5). The surface of the insert (14) and the inner wall of the pump body (1) form a chamber (4) for the flow of the medium. Both the insert (14) and the pump body (1) are stamped stainless steel bodies.

2. The stamped stainless steel vortex pump according to claim 1, characterized in that: The substrate (13) is an aluminum part, and the substrate (13) and the insert (14) are fixed by aluminum die casting.

3. A stamped stainless steel vortex pump according to claim 2, characterized in that: The base (13) has a protrusion (15) at its center, and the insert (14) fits onto the protrusion (15) to fit it.

4. A stamped stainless steel vortex pump according to claim 1 or 3, characterized in that: The substrate (13) has a positioning groove (17) that is adapted to the insert (14).

5. A stamped stainless steel vortex pump according to claim 4, characterized in that: The insert (14) has a notch (18) on its outer periphery, and the base (13) has a limiting part (19) in the corresponding positioning groove (17) that is adapted to the notch (18).

6. A stamped stainless steel vortex pump according to claim 4, characterized in that: The bottom end of the insert (14) has a protruding edge (20) that is adapted to the positioning groove (17). A sealing ring (21) is fitted on the insert (14) corresponding to the protruding edge (20). The sealing ring (21) abuts against the inner wall of the insert (14) and the pump body (1) respectively.

7. A stamped stainless steel vortex pump according to claim 1, characterized in that: The substrate (13) has multiple hollowed-out grooves (22) evenly distributed around the circumference.

8. A stamped stainless steel vortex pump according to claim 1, characterized in that: The pump body (1) has an inlet (7) and an outlet (8). An inlet connector (9) is laser-welded to the inlet (7), and an outlet connector (10) is laser-welded to the outlet (8).

9. A stamped stainless steel vortex pump according to claim 1, characterized in that: The outer periphery of the base (13) is provided with a lug (23), and multiple lugs (23) are evenly distributed around the circumference. The lug (23) is provided with a mounting hole (24), and a connecting bolt (25) is inserted into the mounting hole (24). The connecting bolt (25) connects the lug (23) and the housing (26) of the motor (3).

10. A stamped stainless steel vortex pump according to claim 1, characterized in that: The pump body (1) has a water inlet (11) at the top, which is connected to the chamber (4). A removable plug (12) is provided at the water inlet (11).

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