Stamping pump guide vane bearing and cover plate positioning structure
By setting a notch on the outer ring side wall of the guide vane bearing and closely cooperating with the bearing mounting hole, and axial limit is achieved with the annular outer convex, the problem of loose guide vane bearings at high temperatures is solved, and the stability and strength of the connection are improved.
Patent Information
- Application Number
- CN202422368546.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing stamping pump guide vane bearings are prone to loosening under high temperature conditions, affecting the fixing reliability and connection strength.
A number of notches are provided on the outer ring side wall of the guide vane bearing, and the bearing mounting holes of the guide vane cover plate are closely matched with the notches, and axial limit is achieved through the annular outer protrusion, thereby enhancing the connection strength and stability.
Effectively avoid the influence of high temperature, ensure reliable fixation and stable connection of bearings, and prevent loosening.
Smart Images
Figure CN223215459U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to a positioning structure, in particular to a positioning structure for a guide vane bearing and a cover plate of a stamping pump. Background Art
[0002] A protruding annular wall is formed in the middle of the existing ram pump guide vane cover plate, and the annular wall encloses a bearing positioning hole. The guide vane bearing is installed and fixed in the bearing positioning hole, and an interference fit is adopted between the outer ring of the guide vane bearing and the bearing positioning hole, or a limiting medium is added. When the temperature of the pump conveying medium rises, due to the different thermal expansion coefficients of the material at the bearing positioning hole and the material of the sliding bearing, at high temperatures, the bearing that only adopts an interference fit positioning structure may become loose, affecting the fixation reliability of the guide vane bearing. Utility Model Content
[0003] The utility model aims to provide a positioning structure for a guide vane bearing and a cover plate of a stamping pump, which solves the problems existing in the prior art in that high temperature affects the positioning structure and easily causes loosening.
[0004] The above technical purpose of the present invention is mainly solved through the following technical solutions: a guide vane bearing and cover plate positioning structure of a stamping pump, including a guide vane bearing and a guide vane cover plate, the outer ring side wall of the guide vane bearing is provided with multiple notches, the guide vane cover plate includes a bearing mounting hole for positioning the guide vane bearing, the bearing mounting hole is squeezed and deformed at the notch of the guide vane bearing and fits tightly with the notch.
[0005] As a further preferred technical solution of the present invention, the inner wall of the bearing mounting hole abuts against the outer wall of the guide vane bearing, and the bearing mounting hole is coaxially connected to the guide vane bearing.
[0006] As a further preferred technical solution of the present invention, the notches are arranged at equal intervals and opposite to each other on the side wall of the outer ring of the guide vane bearing.
[0007] As a further preferred technical solution of the present invention, the notch includes a tangent surface parallel to the end face of the guide vane bearing and an inclined surface connected to the tangent surface.
[0008] As a further preferred technical solution of the present invention, one side of the inclined surface is connected to one side of the cut surface to form an angle that is recessed toward the middle of the guide vane bearing.
[0009] As a further preferred technical solution of the present invention, an annular outer protrusion is provided on the edge of one end of the guide vane bearing at the connection between the guide vane cover plate and the bearing mounting hole, and the outer diameter of the annular outer protrusion is larger than the inner diameter of the bearing mounting hole.
[0010] Therefore, the utility model has the characteristics of fixed reliability and stability, can avoid the influence of high temperature on the structure, and strengthens the connection strength to avoid loosening. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural diagram of the present utility model.
[0012] Figure 2 yes Figure 1 Schematic diagram of the structure of the guide vane bearing.
[0013] Figure 3 yes Figure 1 Structural cross-sectional view.
[0014] Figure 4 yes Figure 3 A magnified view of the structure at point A in FIG. DETAILED DESCRIPTION
[0015] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.
[0016] like Figure 1-4 As shown, a guide vane bearing and cover plate positioning structure for a stamping pump includes a guide vane bearing 1 and a guide vane cover plate 2. A plurality of notches 11 are provided on the outer ring side wall of the guide vane bearing 1. The guide vane cover plate 2 includes a bearing mounting hole 21 for positioning the guide vane bearing 1. The bearing mounting hole 21 is squeezed and deformed at the notch 11 of the guide vane bearing 1 and fits tightly with the notch 11. The inner wall of the bearing mounting hole 21 abuts the outer wall of the guide vane bearing 1. The bearing mounting hole 21 is coaxially connected to the guide vane bearing 1. An annular outer protrusion 12 is provided at the edge of one end of the guide vane bearing 1 at the connection between the guide vane cover plate 2 and the bearing mounting hole 21. The outer diameter of the annular outer protrusion 12 is larger than the inner diameter of the bearing mounting hole 21.
[0017] The above-mentioned guide vane bearing and guide vane cover plate are both existing technologies and will not be described in detail here. The guide vane cover plate is made of alloy material. The side wall of the bearing mounting hole is deformed by extrusion and fully fits with the various notches on the side wall of the guide vane bearing, thereby strengthening the connection strength between the bearing mounting hole and the guide vane bearing, improving the structural stability, and reducing the impact of high temperature on the connection structure between the bearing mounting hole and the guide vane bearing. The inner wall of the bearing mounting hole is tightly attached to the outer wall of the guide vane bearing and is coaxially arranged with each other, which can ensure reliable fixation between the bearing mounting hole and the guide vane bearing.
[0018] The above-mentioned annular outer protrusion is arranged at the edge of the end of the guide vane bearing. After the guide vane bearing is installed, one end of the annular outer protrusion on the guide vane bearing is located at the bent connection between the guide vane cover plate and the bearing mounting hole. At the same time, the outer diameter of the annular outer protrusion is larger than the inner diameter of the bearing mounting hole, so that the guide vane bearing can achieve axial limitation through the mutual limitation of the annular outer protrusion and the guide vane cover plate, thereby preventing the guide vane bearing from axial loosening.
[0019] like Figure 2-4 As shown, the notches 11 are arranged at equal intervals and opposite to each other on the side wall of the outer ring of the guide vane bearing 1. The notches 11 include a cut surface 111 parallel to the end face of the guide vane bearing 1 and an inclined surface 112 connected to the cut surface 111. One side of the inclined surface 112 is connected to one side of the cut surface 111 to form an angle 113 that is concave toward the middle of the guide vane bearing 1.
[0020] The above-mentioned multiple notches are respectively arranged in multiple groups, and two notches in each group are arranged opposite to each other and are squeezed and deformed at the same time. The cross-section of the notch is parallel to the end face of the guide vane bearing and perpendicular to the axis of the guide vane bearing. When the bearing mounting hole of the guide vane cover plate is squeezed and deformed and stuck in the notch, the end of the bearing mounting hole abuts against the cross-section of the notch, and the cross-section and the annular outer convex portion cooperate with each other to axially limit the guide vane bearing, effectively realizing the two-way axial limitation of the guide vane bearing, and the inclined surface facilitates the smooth bending of the side wall of the bearing mounting hole to be stuck in the notch, avoiding excessive bending angle to affect the rigidity of the material. At the same time, the inclined surface can be matched with the cross-section to form an angle, and the angle is recessed toward the middle of the guide vane bearing, thereby increasing the clamping depth and angle of the bearing mounting hole, so that the side wall of the bearing mounting portion and the notch are clamped more firmly and securely.
[0021] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.
Claims
1. A guide vane bearing and cover plate positioning structure for a ram pump, comprising a guide vane bearing (1) and a guide vane cover plate (2), characterized in that: A plurality of notches (11) are provided on the outer ring side wall of the guide vane bearing (1); the guide vane cover plate (2) includes a bearing mounting hole (21) for positioning the guide vane bearing (1); the bearing mounting hole (21) is squeezed and deformed at the notch (11) of the guide vane bearing (1) and is tightly fitted with the notch (11).
2. The guide vane bearing and cover plate positioning structure of a ram pump according to claim 1, characterized in that: The inner wall of the bearing mounting hole (21) abuts against the outer wall of the guide vane bearing (1), and the bearing mounting hole (21) is coaxially connected to the guide vane bearing (1).
3. The guide vane bearing and cover plate positioning structure of a ram pump according to claim 1, characterized in that: The notches (11) are arranged at equal intervals and opposite to each other on the side wall of the outer ring of the guide vane bearing (1).
4. The guide vane bearing and cover plate positioning structure for a ram pump according to claim 1 or 3, characterized in that: The notch (11) comprises a cut surface (111) parallel to the end surface of the guide vane bearing (1) and an inclined surface (112) connected to the cut surface (111).
5. The guide vane bearing and cover plate positioning structure of a ram pump according to claim 4, characterized in that: One side of the inclined surface (112) is connected to one side of the cut surface (111) to form an angle (113) that is recessed toward the middle of the guide vane bearing (1).
6. The guide vane bearing and cover plate positioning structure of a ram pump according to claim 1, characterized in that: An annular outer convex portion (12) is provided on the guide vane bearing (1) at one end edge of the connection between the guide vane cover plate (2) and the bearing mounting hole (21), and the outer diameter of the annular outer convex portion (12) is larger than the inner diameter of the bearing mounting hole (21).