Precise alloy water pump volute

Abstract

The utility model relates to a precision alloy water pump volute in the field of water pump volutes, which comprises a casing made by die casting, a cavity used for mounting an impeller is formed on the casing by die casting, a liquid inlet end and a liquid outlet end are respectively formed on the casing by die casting, a reinforcing ring is formed at the joint of the liquid inlet end and the casing, and the liquid inlet end and the liquid outlet end are connected by die casting. A reinforcing ring is arranged in the cavity, a protruding reinforcing plate is formed on the outer surface of the reinforcing ring, a mounting groove is formed in the inner wall, close to the liquid inlet channel, of the cavity in a die-casting mode, and a plurality of positioning protrusions used for clamping and positioning are formed on the inner wall of the mounting groove. The pressure resistance of the water pump is improved, the service life of the water pump is prolonged, deformation or damage caused by long-term work is effectively prevented, accurate positioning and installation of the impeller are facilitated through the design of the installation groove and the positioning protrusion, stable matched connection of the impeller and the cavity is ensured, and the operation stability and efficiency of the water pump are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of water pump volute, concretely relates to a precision alloy water pump volute. BACKGROUND

[0002] Water pump volute is a key equipment component widely used in multiple industrial fields, which has a wide range of applications, including but not limited to chemical industry, metallurgy, power, water conservancy, papermaking, and farmland irrigation, etc. In the chemical industry, volute pumps are used to transport various liquids and corrosive media; in the metallurgical industry, volute pumps are used to transport liquid metal into high-temperature or high-pressure furnaces; in the power industry, volute pumps are used to transport impurity liquids such as coal ash and lime slurry, and can be used in circulating water systems. In addition, volute pumps also play an important role in flood control, water resource management, and environmental protection, etc. Its high efficiency and ability to provide high lift and pressure make it an indispensable device in these fields.

[0003] The existing water pump volute is usually composed of an impeller and a volute formed integrally. The impeller part is composed of blades and a disc, which is responsible for accelerating the water flow and pushing it into the water outlet. The volute part is a volute line shape, which converts the kinetic energy of the impeller rotation into the kinetic energy of the water, and discharges the water flow to the water outlet. The close cooperation of the volute and the impeller realizes the whole process from water absorption at the water inlet, acceleration, kinetic energy conversion to final water discharge through the water outlet.

[0004] However, although the existing water pump volute has been widely used in multiple fields, there are still some defects in the actual use process. The overall structure of the existing volute is limited by the processing technology, and some simple structures of the volute lead to insufficient structural strength and connection stability of the butt joint installation, thereby affecting the performance and service life of the volute, and the strength effect of the existing volute is poor in some harsh working conditions, which is difficult to meet the demand of long-term stable operation, and is easy to cause the wear, deformation and even damage of the volute, thereby affecting the overall performance and service life of the water pump, which is not conducive to the stable connection and use of the volute. SUMMARY

[0005] The utility model aims at solving the above defects, providing a precision alloy water pump volute, to solve the technical problem of insufficient structural strength effect of the existing volute in the above background technology, which is easy to cause deformation and even damage of the volute, affecting the stable connection and use of the volute.

[0006] The utility model aims at solving the above defects, providing a precision alloy water pump volute, to solve the technical problem of insufficient structural strength effect of the existing volute in the above background technology, which is easy to cause deformation and even damage of the volute, affecting the stable connection and use of the volute.

[0007] The utility model provides a kind of precision alloy water pump volute, including shell made by die casting, chamber for mounting impeller is formed by die casting on shell, and inlet end and outlet end are respectively formed by die casting on shell, the inside of the inlet end is formed with inlet channel being communicated with chamber, the junction of inlet end and shell is formed with reinforcing ring, the outer surface of reinforcing ring is formed with several convex reinforcing plates, mounting groove is formed by die casting on the inner wall of chamber close to inlet channel, the inner wall of mounting groove is formed with several positioning protrusions for clamping positioning, the inside of outlet end is formed with outlet channel being communicated with chamber, one end of outlet channel extends spirally to chamber, and the other end of outlet channel is tangentially communicated with chamber and extends outward, the outer surface of outlet end is formed with convex connection positioning ring.

[0008] Further in the above description, the outer surface of the inlet end is formed with an inlet connecting portion for butt joint installation, and the outer surface of the outlet end is formed with an outlet connecting portion for butt joint installation.

[0009] The inlet connecting portion and the outlet connecting portion are arranged to be butt jointed with external pipelines, so as to improve the stability and reliability of the connection, and the outer surfaces of the inlet connecting portion and the outlet connecting portion are smooth surfaces, which can prevent the occurrence of sand holes and scratches.

[0010] Further in the above description, the reinforcing plates are arranged to be spaced apart along the circumference of the reinforcing ring, and the reinforcing ring is provided with a positioning end for reference positioning.

[0011] The reinforcing plates and the reinforcing ring are arranged to enhance the die casting strength of the inlet end, so as to improve the compression resistance and deformation resistance of the inlet end, and the reinforcing ring is arranged to form abutment with the butt joint of the pipeline, so as to enhance the stability and reliability of the connection of the inlet end.

[0012] The positioning end is arranged to provide a reference for the machining of the shell, so as to further facilitate the corresponding machining process.

[0013] Further in the above description, the shell is provided with a mounting end for butt joint installation by die casting, the mounting end is provided with a convex mounting portion, and a plurality of mounting holes for connection and installation are arranged on the mounting portion.

[0014] The mounting end is arranged to be paired with another shell cover outside, and the mounting holes are arranged to facilitate the penetration of bolts for connection and installation.

[0015] Further in the above description, the outer side surface of the mounting end is provided with a plurality of convex reinforcing ribs, and the reinforcing ribs are arranged to be equally spaced apart along the circumferential direction of the mounting end.

[0016] The reinforcing ribs are arranged to improve the overall structural strength and deformation resistance of the shell, so as to further improve the stability and reliability of the use of the shell.

[0017] Further in the above description, the positioning protrusion is formed on the inner wall of the mounting groove, and the surface of the positioning protrusion forms an inclined surface for clamping positioning.

[0018] The positioning protrusion is formed internally to support from the outside, thereby preventing the mounting groove from being indented under external extrusion, and further improving the strength and reliability of the structure.

[0019] Further in the above description, the opening end of the chamber outward passage is formed with an inclined chamfer.

[0020] The beneficial effects of the utility model are as follows: the liquid inlet end and the liquid outlet end formed by die casting are used for connecting external pipelines, the design of the liquid inlet passage ensures that the fluid can smoothly enter the chamber, the design of the spiral liquid outlet passage helps to reduce fluid impact and vortex phenomenon, the fluid flows out more stably, the reinforcing ring and the reinforcing plate enhance the structural strength of the connection between the liquid inlet end and the shell, improve the pressure resistance and service life of the water pump, effectively prevent deformation or damage caused by long-term work, the connecting positioning ring facilitates the connection and positioning of the water pump volute and other components, improves the convenience and stability of installation, the design of the chamber is used for accurate and stable installation of the impeller, at the same time, the design of the mounting groove and the positioning protrusion facilitates accurate positioning and installation of the impeller, ensures stable and matched connection of the impeller and the chamber, and improves the running stability and efficiency of the water pump. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of the first direction of the embodiment;

[0022] Figure 2 It is a structural schematic view of the second direction of the embodiment;

[0023] Figure 3 It is a structural schematic view of the chamber in the embodiment;

[0024] Figure 4 It is a side view in the embodiment;

[0025] The reference signs in the drawings are as follows: 100 - shell, 101 - chamber, 102 - liquid inlet end, 103 - liquid outlet end, 104 - liquid inlet passage, 105 - reinforcing ring, 106 - reinforcing plate, 107 - mounting groove, 108 - positioning protrusion, 109 - liquid outlet passage, 110 - connecting positioning ring, 111 - liquid inlet connecting part, 112 - liquid outlet connecting part, 113 - positioning end, 114 - mounting part, 115 - mounting hole, 116 - reinforcing rib, and 117 - chamfer. DETAILED DESCRIPTION

[0026] The utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0027] The embodiment, refer to Figures 1-4 The specific implementation of a precise alloy water pump volute includes a shell 100 made by die casting, a cavity 101 for mounting an impeller is formed on the shell 100 by die casting, and a liquid inlet end 102 and a liquid outlet end 103 are respectively formed on the shell 100 by die casting, the inside of the liquid inlet end 102 is formed with a liquid inlet channel 104 in communication with the cavity 101, a reinforcing ring 105 is formed at the connection between the liquid inlet end 102 and the shell 100, the outer surface of the reinforcing ring 105 is formed with a protruding reinforcing plate 106, a mounting groove 107 is formed on the inner wall of the cavity 101 close to the liquid inlet channel 104, the inner wall of the mounting groove 107 is formed with a positioning protrusion 108 for clamping positioning, the inside of the liquid outlet end 103 is formed with a liquid outlet channel 109 in communication with the cavity 101, one end of the liquid outlet channel 109 extends spirally towards the cavity 101, and the other end of the liquid outlet channel 109 communicates tangentially with the cavity 101 and extends outward, and the outer surface of the liquid outlet end 103 is formed with a protruding connection positioning ring 110.

[0028] The outer surface of the liquid inlet end 102 is formed with a liquid inlet connecting part 111 for butt joint installation, and the outer surface of the liquid outlet end 103 is formed with a liquid outlet connecting part 112 for butt joint installation.

[0029] Specifically, the liquid inlet connecting part 111 and the liquid outlet connecting part 112 are corrugated connection structures, the corrugated outer surfaces of the liquid inlet connecting part 111 and the liquid outlet connecting part 112 are arranged to butt joint with external water pipes, thereby improving the stability and reliability of the connection, and the outer surfaces of the liquid inlet connecting part 111 and the liquid outlet connecting part 112 are smooth surfaces to prevent phenomena such as pinholes and scratches.

[0030] The reinforcing plate 106 is distributed along the circumference of the reinforcing ring 105, and the reinforcing ring 105 is provided with a positioning end 113 for reference positioning. The reinforcing plate 106 and the reinforcing ring 105 are arranged to enhance the die casting strength of the liquid inlet end 102, thereby improving the compression resistance and deformation resistance of the liquid inlet end 102, and the butt joint of the pipes is formed by the arrangement of the reinforcing ring 105, thereby enhancing the stability and reliability of the connection of the liquid inlet end 102. The positioning end 113 can improve the reference for processing and manufacturing the shell 100, thereby further facilitating corresponding processing.

[0031] The shell 100 is formed with a mounting end for butt joint installation by die casting, the mounting end is formed with a protruding mounting part 114, and the mounting part 114 is provided with a mounting hole 115 for connection installation. The mounting end is arranged to pair with another shell cover outside, and the mounting hole 115 can be conveniently penetrated by a bolt for connection installation.

[0032] The outer side of the mounting end forms a raised reinforcing rib 116, which is evenly spaced along the circumferential direction of the mounting end. The reinforcing rib 116 improves the overall structural strength and deformation resistance of the shell 100, further improving the stability and reliability of the shell 100 in use.

[0033] The positioning protrusion 108 is formed on the inner wall of the mounting groove 107, and the surface of the positioning protrusion 108 forms an inclined surface for clamping positioning. The positioning protrusion 108 forms support from the inside, preventing the mounting groove 107 from being indented under external pressure, further improving the strength and reliability of the structure.

[0034] The opening end of the chamber 101 outward passage forms an inclined chamfer 117.

[0035] The volute is integrally formed by die casting, and the manufacturing process of the volute is:

[0036] Die casting: the shell 100 is formed by die casting the molten material through a mold;

[0037] De-watering: removing excess material from the outer surface of the die-cast shell 100;

[0038] De-burring: first, polish and remove the product line joint line and step, second, polish and remove the product feed position draw mold, and multiple materials, and finally, use a file to remove the product split burr;

[0039] Grinding: the shell 100 is placed in a grinding machine for grinding treatment;

[0040] Finish machining: finish machining by CNC and CNL;

[0041] Passivation cleaning: secondary cleaning is performed to complete the machining process to form the volute.

[0042] Die casting makes the entire volute structure more integrated, reduces the risk of leakage, and improves the sealing performance of the water pump. At the same time, the spiral extension of the liquid outlet passage 109 is tangent to the chamber 101, optimizing the water flow path and improving the efficiency and stability of the water pump.

[0043] The difference between the present embodiment and the prior art is the specific structure and function:

[0044] The molten material is pressed through the mold to form the housing 100 for mounting the impeller, the liquid inlet end 102 and the liquid outlet end 103 formed by the pressure casting are used to connect the external water pipe, the design of the liquid inlet channel 104 ensures that the fluid can smoothly enter the chamber 101, and the spiral liquid outlet channel 109 is designed to help reduce fluid impact and vortex phenomenon, so that the fluid flows out more smoothly, the reinforcing ring 105 and the reinforcing plate 106 formed by the liquid inlet end 102 enhance the structural strength of the connection between the liquid inlet end 102 and the housing 100, improve the pressure resistance and service life of the connection when the liquid inlet, effectively prevent deformation or damage due to long-term work, and the connection positioning ring 110 provided on the liquid outlet end 103 facilitates the connection and positioning of the water pump volute and other components, such as the water pipe, improves the convenience and stability of installation, the design of the chamber 101 is used for precise and stable installation of the impeller, at the same time, the precise positioning and installation of the impeller are facilitated by the design of the mounting groove 107 and the positioning protrusion 108, the positioning protrusion 108 and the clamping positioning of the impeller mounting structure further ensure the stable and matched connection of the impeller and the chamber 101, and improve the running stability and efficiency of the water pump.

[0045] In summary, the design features of the precision alloy water pump volute are aimed at improving the working efficiency, stability and service life of the water pump, so that it can meet the stability requirements of the water pump volute in high-pressure and high-speed working environment.

[0046] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed as above in the preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the present application, and any equivalent embodiment with equivalent changes is equivalent to the above embodiment. Any simple modification, equivalent change and modification of the above embodiment within the scope of the present application are within the scope of the present application.

Claims

1. A precision alloy water pump volute comprising a housing made of die casting, a chamber for mounting an impeller is formed on the housing by die casting, and a liquid inlet end and a liquid outlet end are respectively formed on the housing by die casting, characterized in that: The inner part of the liquid inlet end is formed with a liquid inlet channel communicated with the chamber, the connecting part of the liquid inlet end with the shell is formed with a reinforcing ring, the outer surface of the reinforcing ring is formed with a plurality of protruding reinforcing plates, the inner wall of the chamber close to the liquid inlet channel is formed with a mounting groove by die casting, the inner wall of the mounting groove is formed with a plurality of positioning protrusions for clamping positioning, the inner part of the liquid outlet end is formed with a liquid outlet channel communicated with the chamber, one end of the liquid outlet channel extends spirally towards the chamber, and the other end of the liquid outlet channel is communicated tangentially with the chamber and extends outward, and the outer surface of the liquid outlet end is formed with a protruding connecting positioning ring.

2. A precision alloy water pump volute as claimed in claim 1, wherein: The outer surface of the liquid inlet end is formed with a liquid inlet connecting part for butt joint mounting, and the outer surface of the liquid outlet end is formed with a liquid outlet connecting part for butt joint mounting.

3. The precision alloy water pump volute of claim 1, wherein: The reinforcing plates are distributed along the circumference of the reinforcing ring, and the reinforcing ring is provided with a positioning end for reference positioning.

4. The precision alloy water pump volute of claim 1, wherein: The shell is provided with a mounting end for butt joint mounting by die casting, the mounting end is formed with a protruding mounting part, and the mounting part is provided with a plurality of mounting holes for connecting mounting.

5. A precision alloy water pump volute as claimed in claim 4, wherein: The outer side of the mounting end is formed with a plurality of protruding reinforcing ribs, which are distributed at equal intervals along the circumferential direction of the mounting end.

6. The precision alloy water pump volute according to any one of claims 1-5, characterized in that: The positioning protrusions are formed on the inner wall of the mounting groove, and the surface of the positioning protrusions is formed with an inclined surface for clamping positioning.

7. The precision alloy water pump volute according to any one of claims 1-5, characterized in that: The opening end of the outward channel of the chamber is formed with an inclined chamfer.

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