Precision casting high-strength wear-resistant pump body

Abstract

The precision casting high-strength wear-resistant pump body comprises a shell and a lining arranged in the shell, the shell comprises a front shell and a rear shell, a flow inlet is formed in the middle of the front shell, and a first clamping groove is formed in the edge of the inner side of the flow inlet; a shaft hole is formed in the middle of the rear shell; a second clamping groove is formed in the edge of the inner side of the shaft hole; the lining comprises a front lining and a rear lining, the front lining is a plurality of fan-shaped curved plates profiling the inner wall of the front shell, and the inner end of the front lining is clamped in the first clamping groove; the rear lining is composed of a plurality of fan-shaped curved plates which are profiled with the inner wall of the rear shell, and the inner end of the rear lining is clamped in the second clamping groove; after the front shell and the rear shell are spliced, the outer end of the front lining abuts against the outer end of the rear lining. The clamping grooves are formed in the outer side of the flow inlet and the outer side of the shaft hole, the inner end of the lining is clamped in the clamping grooves, the outer end of the lining is pressed tightly through the shell, and therefore rapid installation and replacement of the lining are achieved, and the replacement efficiency of the abrasion-resistant layer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of precision casting, in particular to a precision cast high-strength wear-resistant pump body. Background Art

[0002] In the manufacturing industry, pumps are often used to transport solid-liquid two-phase fluids. Solid-liquid two-phase fluids are abrasive and can easily cause wear on the inner wall of the pump body, seriously affecting the service life of the pump. Existing wear-resistant pump bodies are mostly welded with wear-resistant alloys inside the pump body, or wear-resistant ceramics are bonded with resin to improve the wear resistance of the pump body. However, the wear-resistant layer will wear out after long-term use, and it is not easy to replace the wear-resistant layer.

[0003] Based on the above technical problems, the present application proposes a precision cast high-strength wear-resistant pump body. Utility Model Content

[0004] The purpose of the utility model is to provide a precision cast high-strength wear-resistant pump body to solve the technical problems mentioned in the background technology. The purpose of the utility model is achieved through the following technical solutions:

[0005] A precision cast high-strength wear-resistant pump body comprises an outer shell and an inner liner arranged in the outer shell, an outlet is arranged on the side of the outer shell, the outer shell comprises a front outer shell and a rear outer shell, an inlet is opened in the middle of the front outer shell, and a first clamping groove is arranged on the inner edge of the inlet; an axial hole is opened in the middle of the rear outer shell, and a second clamping groove is arranged on the inner edge of the axial hole; the inner liner comprises a front liner and a rear liner, the front liner is a plurality of fan-shaped curved panels conforming to the inner wall of the front outer shell, and the inner end of the front liner is clamped in the first clamping groove; the rear liner is a plurality of fan-shaped curved panels conforming to the inner wall of the rear outer shell, and the inner end of the rear liner is clamped in the second clamping groove; after the front outer shell and the rear outer shell are spliced, the outer end of the front liner abuts against the outer end of the rear liner.

[0006] Furthermore, the outer ends of the front lining and the rear lining are both provided with ribs, and the front lining and the rear lining are both made of wear-resistant alloy or ceramic material.

[0007] Furthermore, a buffer layer is provided between the front inner lining and the front outer shell, and between the rear inner lining and the rear outer shell, and the buffer layer is a rubber layer.

[0008] The technical solution provided in the embodiments of the present application has at least the following technical effects or advantages:

[0009] 1. By opening a clamping groove on the outside of the inlet and the shaft hole, the inner end of the liner is clamped in the clamping groove, and the outer end of the liner is pressed by the outer shell, so as to realize the rapid installation and replacement of the liner and improve the replacement efficiency of the wear-resistant layer;

[0010] 2. By filling a buffer layer between the outer shell and the inner liner, the inner liner can be buffered, the impact of the solid phase in the fluid can be reduced, and the service life of the inner liner can be extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0012] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present application;

[0013] Figure 2 This is a cross-sectional view of an embodiment of the present application;

[0014] Figure 3 for Figure 2 A partial enlarged view of .

[0015] Markings in the attached drawings: 1. outer shell; 11. front outer shell; 111. inlet; 112. first snap-fit ​​groove; 12. rear outer shell; 121. axial hole; 122. second snap-fit ​​groove; 13. base; 14. outlet; 2. lining; 21. front lining; 22. rear lining; 23. retaining edge. DETAILED DESCRIPTION

[0016] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the drawings and specific implementation methods of the specification. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0017] like Figure 1 , Figure 2 A precision cast high-strength wear-resistant pump body shown includes an outer shell 1 and an inner liner 2 arranged in the outer shell 1. The outer shell 1 includes a front outer shell 11 and a rear outer shell 12. An inlet 111 is provided in the middle of the front outer shell 11, and an axial hole 121 is provided in the middle of the rear outer shell 12. The inlet 111 and the axial hole 121 are coaxially arranged. Grooves are respectively provided on the connecting surfaces of the front outer shell 11 and the rear outer shell 12. The grooves of the front outer shell 11 and the grooves of the rear outer shell 12 constitute the flow channel of the pump body, and the flow channel is connected with the inlet 111 and the axial hole 121. A base 13 is fixed to the bottom of the outer shell 1, and an outlet 14 is provided on the left side of the outer shell 1, and the outlet 14 is connected with the flow channel.

[0018] like Figure 2 , Figure 3 As shown, the edge of the inlet 111 on one side of the flow channel is provided with a first clamping groove 112, and a step is provided in the first clamping groove 112. The edge of the shaft hole 121 on one side of the flow channel is provided with a second clamping groove 122, and a step is provided in the second clamping groove 122.

[0019] The liner 2 includes a front liner 21 and a rear liner 22. The front liner 21 is a plurality of fan-shaped curved panels conforming to the inner wall of the front shell 11. The front liner 21 is at least four pieces. The inner end of the front liner 21 is clamped in the first clamping groove 112. A plurality of front liners 21 are radially installed outside the inlet 111. The rear liner 22 is a plurality of fan-shaped curved panels conforming to the inner wall of the rear shell 12. The rear liner 22 is at least four pieces. The inner end of the rear liner 22 is clamped in the second clamping groove 122. A plurality of rear liners 22 are radially installed outside the shaft hole 121.

[0020] When the front shell 11 and the rear shell 12 are spliced, the outer end of the front lining 21 abuts against the outer end of the rear lining 22 to fix the lining 2. The front lining 21 and the rear lining 22 are both made of wear-resistant alloy or ceramic, and the outer ends of the front lining 21 and the rear lining 22 are provided with retaining edges 23 to improve the structural strength of the abutment.

[0021] Preferably, a rubber buffer layer is filled between the front lining 21 and the front outer shell 11 , and between the rear lining 22 and the rear outer shell 12 . The buffer layer can reduce the impact of the solid phase in the fluid on the lining 2 , thereby extending the service life of the lining 2 .

[0022] The technical solution provided in the embodiments of the present application has at least the following technical effects or advantages:

[0023] 1. By opening a clamping groove on the outside of the inlet and the shaft hole, the inner end of the liner is clamped in the clamping groove, and the outer end of the liner is pressed by the outer shell, so as to realize the rapid installation and replacement of the liner and improve the replacement efficiency of the wear-resistant layer;

[0024] 2. By filling a buffer layer between the outer shell and the inner liner, the inner liner can be buffered, the impact of the solid phase in the fluid can be reduced, and the service life of the inner liner can be extended.

[0025] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0026] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0027] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A precision cast high-strength wear-resistant pump body, comprising a shell and a liner arranged in the shell, wherein a flow outlet is arranged on the side of the shell, characterized in that: The shell comprises a front shell and a rear shell, a flow inlet is provided in the middle of the front shell, and a first clamping groove is provided at the inner edge of the flow inlet; an axial hole is provided in the middle of the rear shell, and a second clamping groove is provided at the inner edge of the axial hole; the lining comprises a front lining and a rear lining, the front lining is a plurality of fan-shaped curved panels conforming to the inner wall of the front shell, and the inner end of the front lining is clamped in the first clamping groove; the rear lining is a plurality of fan-shaped curved panels conforming to the inner wall of the rear shell, and the inner end of the rear lining is clamped in the second clamping groove; after the front shell and the rear shell are spliced ​​together, the outer end of the front lining abuts against the outer end of the rear lining.

2. A precision cast high-strength wear-resistant pump body according to claim 1, characterized in that: The outer ends of the front lining and the rear lining are both provided with retaining edges, and the front lining and the rear lining are both made of wear-resistant alloy or ceramic.

3. The precision cast high-strength wear-resistant pump body according to claim 1, characterized in that: A buffer layer is provided between the front inner lining and the front outer shell, and between the rear inner lining and the rear outer shell, and the buffer layer is a rubber layer.

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