impeller structure of locomotive water pump

Abstract

This utility model provides an impeller structure for a locomotive water pump, which mainly includes: a disc body with a guide column protruding from the center of its top surface, and multiple blades arranged around the guide column. Each blade is arc-shaped, and a first groove is provided on the top surface of the disc body between every two blades. A rotating shaft is provided on the bottom surface of the disc body. The rotating shaft can be connected to the power system of the locomotive engine. The first grooves make the impeller structure itself lighter, thereby improving the efficiency of the water pump.

Description

Technical Field

[0001] This utility model relates to an impeller structure, and more particularly to an impeller structure for a locomotive water pump. Background Technology

[0002] The locomotive's water pump is mainly responsible for circulating coolant in the engine cooling system to remove the heat generated during engine operation, ensuring that the engine operates within the optimal temperature range. The water pump and water tank together form a water-cooling system, which is a crucial component for locomotives with water-cooled engines.

[0003] The impeller inside a water pump is primarily driven by the engine's power transmission system, causing it to rotate at high speed and push coolant. However, the design of the impeller's outer diameter, number of blades, and angle all affect the water flow rate the pump can deliver. Furthermore, the resistance generated by the water flow also increases the impeller's power requirements, impacting overall performance. Therefore, improving the impeller structure to enhance water pump efficiency is a crucial current research topic. Utility Model Content

[0004] In view of the above-mentioned shortcomings, the main purpose of this utility model is to provide a structure that increases water flow velocity and improves the heat dissipation efficiency of water pump.

[0005] To achieve the above objectives, the technical means adopted by this utility model is an impeller structure for a locomotive water pump, which mainly includes:

[0006] A disc body has a guide column protruding from its central top surface and a rotating shaft on its bottom surface. Multiple blades are disposed on the top surface of the disc body and arranged around the guide column. Each blade is arc-shaped, and a first groove is provided on the top surface of the disc body between every two blades.

[0007] In one embodiment, the bottom surface of the disc is provided with a plurality of second grooves, and each of the second grooves is arranged radially around the pivot.

[0008] In one embodiment, each of the first grooves and each of the second grooves is a spherical groove, and their diameters are the same or different.

[0009] In one embodiment, there are multiple first grooves between every two blades, and each of the first grooves is arranged in two rows at intervals.

[0010] In one embodiment, each blade has a convex arc surface and a concave arc surface, the convex arc surface facing the outer periphery of the disk body, and the concave arc surface facing the guide column.

[0011] In one embodiment, the front end of each blade is spaced apart from the guide post, and the junction of the front end of the blade and the concave arc surface forms a rounded corner, while the junction of the front end of the blade and the convex arc surface forms a sharp corner.

[0012] In one embodiment, the top and bottom surfaces of the disc are sloped from the outside in and from the bottom up.

[0013] By means of the arrangement of the first groove and the second groove, the impeller structure itself is made lighter, thereby improving the efficiency of the water pump. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0015] Figure 2 This is a three-dimensional schematic diagram of the present invention.

[0016] Figure 3 This is a partial cross-sectional schematic diagram of the present invention.

[0017] Figure 4 This is a top view of the present invention.

[0018] Figure 5 This is a schematic diagram of the water pump disassembled.

[0019] Figure 6 This is a top view of the present invention integrated into a water pump.

[0020] The diagram is marked as follows:

[0021] 1. Impeller

[0022] 11. Disc body

[0023] 111. Top surface

[0024] 112. Bottom

[0025] 12. Flow guide column

[0026] 13. Leaf

[0027] 131. Convex surface

[0028] 132. Concave arc surface

[0029] 14. Shaft

[0030] 15. First groove

[0031] 16. Second groove

[0032] 2. Water pump

[0033] 21. Base

[0034] 211. Chamber

[0035] 212. Connecting Hole

[0036] 213. Water outlet

[0037] 214. Water outlet pipe

[0038] 22. Top cover

[0039] 221. Water inlet pipe

[0040] 23. Gasket

[0041] θ1, θ2. Angles

[0042] H. Distance

[0043] R. Rounded corner

[0044] C. Sharp corner

[0045] d1, d2. Diameter Detailed Implementation

[0046] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand the advantages and effects of this utility model from the content disclosed in this specification. Identical elements will be described using the same reference numerals.

[0047] Please see Figures 1 to 4 The present invention discloses an impeller structure for a locomotive water pump. The impeller structure mainly includes: a disc body 11 with a guide column 12 protruding from its central top surface, and multiple blades 13 disposed on the top surface 111 of the disc body 11 and arranged around the guide column 12. The disc body 11 is a disc with a thickness, and the guide column 12 is a cylinder with a spherical arc at the top. The bottom surface 112 of the disc body 11 is also provided with a rotating shaft 14, which can be connected to the locomotive engine power system (not shown in the figure) and driven to rotate by the power system.

[0048] In this embodiment, each blade 13 is arc-shaped, having a convex arc surface 131 and a concave arc surface 132. The convex arc surface 131 faces the outer periphery of the disk body 11, and the concave arc surface 132 faces the guide column 12. The front end of each blade 13 forms an inclination angle θ1 and is spaced apart from the guide column by a distance H. The rear end of each blade 13 extends and is flush with the outer periphery of the disk body 11. Furthermore, a rounded corner R is formed at the junction of the front end of each blade 13 and the concave arc surface 132, and a sharp corner C is formed at the junction of the front end of the blade and the convex arc surface 131.

[0049] It is worth mentioning that, in this utility model, at least one first groove 15 is provided on the top surface 111 of the disk body 11 between every two blades 13. The following description and accompanying drawings of this embodiment use multiple first grooves 15 as an example. There are multiple first grooves 15 between every two blades 13, and each first groove 15 is a spherical groove arranged in two rows at intervals. The diameters of each first groove 15 can be the same or different. In this embodiment, the diameter d1 of the first groove 15 in the row adjacent to the outer periphery of the disk body 11 is smaller than the diameter d2 of the first groove 15 in the adjacent row, but this is not a limitation. The size arrangement of each first groove 15 can be different depending on the structural design.

[0050] Furthermore, such as Figure 2 and Figure 3 As shown, the bottom surface 112 of the disc body 11 is also provided with a plurality of second grooves 16. Each of the second grooves 16 is spherical and arranged radially with the rotating shaft 14 as the center. In the attached figure of this embodiment, the diameter of each of the second grooves 16 gradually increases from the inside to the outside, but this is not a limitation. The diameter of each of the second grooves 16 can also be the same size or other sizes arranged in a cross configuration.

[0051] Please refer to the following for further information. Figure 3 To ensure that the impeller 1 can effectively carry the coolant when rotating, the top surface 111 and bottom surface 112 of the disc 11 form a slope with a preset angle θ2 from the outside to the inside and from the bottom to the top. Specifically, the outer periphery of the disc 11 forms a slope towards the guide column 12, so that the top surface 111 adjacent to the guide column 12 is higher than the outer periphery. Each of the first grooves 15 and each of the second grooves 16 are arranged along the slope, so that the coolant can flow out along the slope of the top surface 111 in addition to being thrown out by centrifugal force.

[0052] See also Figure 5 and Figure 6 The diagram shows an exploded view of the water pump. The locomotive water pump 2 mainly consists of a base 21 and a top cover 22. A gasket 23 is provided between the base 21 and the top cover 22. The gasket 23 is mainly used to seal the chamber 211 of the base 21. The impeller 1 is mounted in the mating hole 212 of the base 21 by the rotating shaft 14. One end of the rotating shaft 14 is connected to the power system of the locomotive engine (not shown in the figure), which drives the impeller 1 to rotate. The base 21 has a water outlet 213, which is connected to a water outlet pipe 214. The top cover 22 has a water inlet pipe 221 that connects to the chamber 211.

[0053] When the coolant enters the chamber 211 through the inlet pipe 221, it impacts the guide column 12 and flows along the outer edge of the guide column 12 to the space between the blades 13. The rounded corner R at the front end of each blade 13 has a guiding function, allowing the coolant to flow along the rounded corner R to the concave arc surface 132, and then flow to the outlet 213 by centrifugal force.

[0054] Therefore, by setting each of the first grooves 15 and each of the second grooves 16, the structure of the impeller 1 is made lighter and the heat dissipation surface area is increased, thereby reducing the power demand, improving the efficiency of the water pump 2, increasing the circulation speed of the coolant, and achieving the effect of rapid water cooling.

[0055] The above embodiments are merely illustrative of the effects of this utility model and are not intended to limit this utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model.

Claims

1. A structure of an impeller of a water pump of a locomotive, characterized by, include: A disc-shaped body with a guide column protruding from the top surface at its center and a rotating shaft on the bottom surface; as well as Multiple blades are disposed on the top surface of the disk and arranged around the guide column. Each blade is arc-shaped, and a first groove is provided on the top surface of the disk between every two blades.

2. The impeller structure of a water pump for a locomotive according to claim 1, wherein The bottom surface of the disc is provided with multiple second grooves, and each of the second grooves is arranged radially with the rotating shaft as the center.

3. The impeller structure of the locomotive water pump according to claim 2, characterized in that, Each of the first grooves and each of the second grooves is a spherical groove, and their diameters are the same or different.

4. The impeller structure of a water pump for a locomotive according to claim 1, wherein There are multiple first grooves between each pair of blades, and each of the first grooves is arranged in two rows at intervals.

5. The impeller structure of a water pump for a locomotive according to claim 1, wherein Each blade has a convex arc surface and a concave arc surface, with the convex arc surface facing the outer periphery of the disk body and the concave arc surface facing the guide column.

6. The impeller structure of a water pump for a locomotive according to claim 5, wherein Each blade tip is spaced apart from the guide post, and the junction of the blade tip and the concave arc surface forms a rounded corner, while the junction of the blade tip and the convex arc surface forms a sharp corner.

7. The impeller structure of a water pump for a locomotive according to claim 1, wherein The top and bottom surfaces of the disc form a sloping shape from the outside in and from the bottom up.

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