Thrust ring laser cladding prefabricated blank and thrust ring thereof
By designing the substrate structure of the thrust ring laser cladding preform, one-time clamping laser cladding forming is achieved, solving the problems of low processing efficiency and high inspection difficulty in thrust ring laser cladding technology, and improving the efficiency of mass production and the finished product qualification rate.
Patent Information
- Application Number
- CN202423276853.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing thrust ring laser cladding technology has low processing efficiency and high dimensional inspection difficulty in mass production, resulting in high rework and scrap rates, and is not conducive to mass production.
A thrust ring laser cladding preform was designed, including a base, a positioning surface, a reference structural surface, a cladding surface, and a guide surface. Through the scientific design of these structures, one-time clamping laser cladding forming is achieved, simplifying the operation process, improving processing efficiency, and facilitating finished product inspection through dimensional references.
It increased processing efficiency by about 3 times, reduced product rework and scrap rates, achieved controllability in batch processing, and improved product qualification rate.
Smart Images
Figure CN223620482U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser cladding technology, and more specifically, to a thrust ring laser cladding preform and the thrust ring thereof. Background Technology
[0002] Petroleum machinery components operate under harsh conditions, requiring high-hardness, high-wear-resistant coatings. Laser cladding, with its metallurgical bond to the substrate and dense cladding layer, is the preferred surface coating process. Thrust rings are vulnerable components in petroleum machinery and require regular replacement; previously, they were all imported. Due to long import cycles and high prices, domestic substitution is a promising prospect.
[0003] Structurally, the thrust ring is a semi-circular ring-shaped piece, with one side coated with a friction-reducing alloy. The lower part of the thrust ring has a protruding tail on its outer side, which is inserted into the bearing cap groove during installation to prevent rotation. During the cladding of the wear-resistant layer, the laser angle and part placement angle need to be adjusted multiple times at the edges, which is not conducive to mass production and results in low processing efficiency. Furthermore, dimensional inspection after cladding is difficult, quality control is challenging, and batch rework or scrap is likely to occur.
[0004] A search revealed no laser cladding solution to the above problems. Therefore, the invention of a laser cladding solution suitable for thrust rings is of great significance for actual production. Utility Model Content
[0005] This utility model addresses the shortcomings of existing technologies by providing a laser cladding preform for thrust rings. By designing the inner hole of the thrust ring blank to be clad and improving the substrate design, the processing efficiency is more than three times that of the original. A dimensional reference is designed to facilitate finished product inspection after batch processing, thereby reducing product rework and scrap rates.
[0006] The above-mentioned objectives of this utility model are achieved through the following technical solutions:
[0007] A laser cladding preform for a thrust ring is disclosed, comprising an annular thrust ring blank to be clad. The annular thrust ring blank includes a base and an open end. The open end includes a positioning surface, a reference structural surface, and a cladding surface. The positioning surface is a plane disposed on the outer side of the open end. The positioning surface is parallel to the end face of the base. The reference structural surface is disposed on the inner side near the annular thrust ring blank. The reference structural surface and the cladding surface are connected by a guide surface. The inner diameter of the cladding surface is larger than the inner diameter of the reference structural surface. The cladding surface has a segmented variable diameter structure and includes a pointed tip that protrudes from the base towards the open end.
[0008] This utility model's thrust ring laser cladding preform is designed based on actual production and usage requirements. The inner hole of the thrust ring preform to be clad is specifically designed, and through the setting of a reference structural surface, a cladding surface, and a guide surface, laser cladding can begin from the open end and continue until it is flush with or slightly smaller than the reference structural surface. The inner hole of the cladding layer is less than or equal to the inner hole diameter of the reference structural surface. This allows for one-time clamping and laser cladding forming, improving work efficiency.
[0009] Furthermore, the cross-section of the cladding surface near the open end is L-shaped. This structure perfectly meets the design requirements of the thrust ring structure and forms the basis of the entire thrust ring laser cladding preform. It can be designed and adjusted according to the different requirements of different thrust ring structures.
[0010] Furthermore, the connection between the guide surface and the L-shaped structure forms a pointed tip. This structure not only meets the design requirements of the thrust ring but also clearly separates the laser cladding area, facilitating the laser cladding operation and enabling cladding requirements to be met with a single clamping.
[0011] Furthermore, the thickness from the tip to the opening end accounts for 16%-20% of the overall thickness of the annular thrust ring blank to be clad.
[0012] Furthermore, the reference structural surface includes an inner end face parallel to the positioning surface and a limiting surface perpendicular to the inner end face; the thickness from the tip to the bottom of the L-shaped structure is less than the thickness of the limiting surface. That is, the cladding surface at the open end is recessed, which simplifies subsequent laser cladding operations.
[0013] Furthermore, the angle between the tip and the bottom plane of the L-shaped structure is 110°-130°.
[0014] Furthermore, the positioning surface and the limiting surface are arranged perpendicularly, and the width of the positioning surface is 8-10:100 of the width of the inner hole of the cladding annular thrust ring blank.
[0015] Furthermore, the width of the limiting surface is 8%-12% of the overall thickness of the annular thrust ring blank to be melted and clad.
[0016] Furthermore, the angle between the outer side of the guide surface and the limiting surface is 120°-150°.
[0017] Another objective of this utility model is to provide a thrust ring comprising the aforementioned thrust ring laser cladding preform, including a laser cladding layer, wherein the laser cladding layer comprises a first cladding layer and a second cladding layer forming a sharp angle, wherein the length of the first cladding layer is different from that of the second cladding layer, and the thickness is different, and the angle between the outer surface of the first cladding layer and the outer surface of the second cladding layer is 30°-40°.
[0018] Compared with the prior art, this utility model has the following advantages:
[0019] This utility model discloses a pre-formed thrust ring for laser cladding. Based on actual production and usage requirements, the inner hole of the thrust ring blank to be clad is designed. Through the setting of a reference structural surface, a cladding surface, and a guide surface, laser cladding can begin from the open end and continue until the cladding layer is flush with or slightly smaller than the reference structural surface. The inner hole of the cladding layer is less than or equal to the inner hole diameter of the reference structural surface. This allows for one-time laser cladding forming, improving work efficiency.
[0020] The thrust ring laser cladding preform disclosed in this utility model scientifically designs the dimensions of the reference structural surface, cladding surface and guide surface, and designs a dimensional reference, which facilitates the inspection of finished products after batch processing, reduces the product rework rate and scrap rate, solves the finished product inspection problem, and facilitates the control of the pass rate of batch processing. Attached Figure Description
[0021] The accompanying drawings, which form part of this 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 undue limitation of the present invention. In the drawings:
[0022] Figure 1 This is a schematic diagram of the overall structure of the thrust ring laser cladding preform as described in Example 1.
[0023] Figure 2 for Figure 1 A magnified structural diagram of point A of the laser cladding preform of the thrust ring.
[0024] Figure 3 This is a schematic diagram of the cladding layer of the thrust ring laser cladding preform as described in Example 1.
[0025] Figure 4 This is a schematic diagram of the overall structure of the thrust ring described in Example 2.
[0026] Figure 5 This is an enlarged structural diagram of point B of the thrust ring described in Example 2.
[0027] Among them, 1-substrate, 2-open end, 3-reference structural surface, 31-inner end face, 32-limiting surface, 4-cladding surface, 5-guide surface, 6-tip part, 100-laser cladding layer, 101-cladding layer one, 102-cladding layer two. Detailed Implementation
[0028] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims. Example 1
[0029] like Figures 1-2 As shown, the thrust ring laser cladding preform of this embodiment includes an annular thrust ring blank to be clad. The annular thrust ring blank includes a base 1 and an open end. The open end includes a positioning surface 2, a reference structural surface 3, and a cladding surface 4. The positioning surface 2 is a plane disposed on the outer side of the open end 2. The positioning surface 2 is parallel to the end face of the base 1. The reference structural surface 3 is disposed on the inner side close to the annular thrust ring blank. The reference structural surface 3 and the cladding surface 4 are connected by a guide surface 5. The inner diameter of the cladding surface 4 is larger than the inner diameter of the reference structural surface 3. The cladding surface 4 is a segmented variable diameter structure. The cladding surface 4 includes a tip 6, which protrudes from the base 1 toward the open end.
[0030] The thrust ring laser cladding preform in this embodiment is designed based on actual production and usage requirements. The inner hole of the thrust ring preform to be clad is specifically designed, and through the setting of a reference structural surface, a cladding surface, and a guide surface, laser cladding can begin from the open end and continue until it is flush with or slightly smaller than the reference structural surface. The inner hole of the cladding layer is less than or equal to the inner hole diameter of the reference structural surface. This allows for one-time clamping and laser cladding forming, improving work efficiency.
[0031] The reference structure surface 3 includes an inner end face 31 parallel to the positioning surface 2, and a limiting surface 32 perpendicular to the inner end face 31. The limiting surface 32 and the open end are concentrically set with the annular thrust ring blank to be clad, ensuring the coaxiality of the entire blank and guaranteeing the quality of the entire blank, making subsequent laser cladding easier.
[0032] The cladding surface 4 has an L-shaped cross-section near the opening end. The guide surface 5 connects to the L-shaped structure to form a pointed tip 6. This structure not only meets the design requirements of the thrust ring but also clearly separates the laser cladding area, making the laser cladding operation easier and allowing for cladding requirements to be met with a single clamping.
[0033] The thickness from the tip 6 to the open end accounts for 16%-20% of the overall thickness of the annular thrust ring blank to be clad, and in this embodiment, the thickness accounts for 18.5% of the overall thickness of the annular thrust ring blank to be clad. This allows some steel substrate to be retained inside the cladding layer, ensuring the wear resistance of the cladding layer while giving it a certain degree of toughness, making the part more impact resistant.
[0034] The thickness from the tip of the tip 6 to the bottom of the L-shaped structure is less than the thickness of the limiting surface 32. That is, the structure at the opening end is recessed, which makes subsequent laser cladding operations simpler.
[0035] The included angle between the tip 6 and the bottom plane of the L-shaped structure is 110°-130°. In this embodiment, the included angle between the tip 6 and the bottom plane of the L-shaped structure is 120°. The ratio of the width of the positioning surface 2 to the inner hole width of the clad annular thrust ring blank is 8-10:100. In this embodiment, the ratio to the inner hole width of the clad annular thrust ring blank is 8.5:100. The positioning surface 2 serves as the dimension reference surface. During cladding, as long as the clad layer is flush with the positioning surface 2, the part is qualified for cladding.
[0036] The width of the limiting surface 32 is 8%-12% of the overall thickness of the to-be-clad annular thrust ring blank. In this embodiment, it is 10% of the overall thickness of the to-be-clad annular thrust ring blank. The outer included angle between the guiding surface 5 and the limiting surface 32 is 120°-150°. In this embodiment, the outer included angle between the guiding surface 5 and the limiting surface 32 is 135°. The limiting surface 32 is the dimension reference surface. During cladding, as long as the inner diameter of the clad layer is flush with or slightly smaller than the limiting surface 32, it is qualified.
[0037] As Figure 3 shown, during laser cladding, start cladding from the section at the L-shaped structure near the opening end of the clad surface 4 at the opening end in the figure until it is clad to be flush with or slightly smaller than the position of the limiting surface 32 of the reference structure surface 3. Among them, the positioning surface 2 and the limiting surface 32 are the reference dimensions. The inner hole of the clad layer is less than or equal to the inner diameter of the reference structure surface 32, and being flush with the positioning surface 2 is qualified. Embodiment 2
[0038] As Figures 4-5 , the thrust ring of the thrust ring laser cladding preform of this embodiment includes a laser clad layer 100. The laser clad layer 100 includes a clad layer one 101 and a clad layer two 102 forming a sharp angle. The length and thickness of the clad layer one 101 are different from those of the clad layer two 102. The included angle between the outer surface of the clad layer one 101 and the outer surface of the clad layer two 102 is 30°-40°. In this embodiment, the included angle is 35°. The clad layer uses a high-hardness wear-resistant material to extend the service life of the part, reduce the maintenance and replacement time due to part failure, and improve production efficiency.
[0039] The thrust ring laser cladding preform disclosed by the present utility model scientifically designs the dimensions of the reference structure surface, the clad surface and the guiding surface, designs the dimension reference, which is convenient for成品检测 after batch processing, reduces the rework rate and scrap rate of the product; solves the成品检测 problem and is convenient for controlling the qualified rate of batch processing. It improves the product processing efficiency. Through the improvement of the matrix design, the processing efficiency is about more than 3 times that of the original.
[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Various modifications and variations can be made to the present utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of the present utility model.
Claims
1. A thrust ring laser cladding preform, characterized in that, The ring includes a thrust ring blank to be clad, the ring includes a base (1) and an open end, the open end includes a positioning surface (2), a reference structural surface (3) and a cladding surface (4), the positioning surface (2) is a plane set on the outer side of the open end; the positioning surface (2) is set parallel to the end face of the base (1); the reference structural surface (3) is set on the inner side close to the ring, the reference structural surface (3) and the cladding surface (4) are connected by a guide surface (5), the inner diameter of the cladding surface (4) is larger than the inner diameter of the reference structural surface (3); the cladding surface (4) is a segmented variable diameter structure, the cladding surface (4) includes a tip (6), the tip (6) protrudes from the base (1) towards the open end.
2. The thrust ring laser cladding preform according to claim 1, characterized in that, The cladding surface (4) has an L-shaped cross-section near the opening end.
3. The thrust ring laser cladding preform according to claim 2, characterized in that, The guide surface (5) forms a tip (6) at the connection between it and the L-shaped structure.
4. The thrust ring laser cladding preform according to claim 3, characterized in that, The thickness of the tip (6) to the opening end accounts for 16%-20% of the overall thickness of the annular thrust ring blank to be clad.
5. The thrust ring laser cladding preform according to claim 4, characterized in that, The reference structure surface (3) includes an inner end face (31) parallel to the positioning surface (2) and a limiting surface (32) perpendicular to the inner end face (31); the thickness of the tip (6) to the bottom of the L-shaped structure is less than the thickness of the limiting surface (32).
6. The thrust ring laser cladding preform according to claim 5, characterized in that, The angle between the tip (6) and the bottom plane of the L-shaped structure is 110°-130°.
7. The thrust ring laser cladding preform according to claim 6, characterized in that, The width of the positioning surface (2) is 8-10:100 of the width of the inner hole of the cladding annular thrust ring blank.
8. The thrust ring laser cladding preform according to claim 7, characterized in that, The width of the limiting surface (32) is 8%-12% of the overall thickness of the annular thrust ring blank to be clad.
9. The thrust ring laser cladding preform according to claim 8, characterized in that, The angle between the guide surface (5) and the outer side of the limiting surface (32) is 120°-150°.
10. A thrust ring comprising a laser-clad preform of a thrust ring according to any one of claims 1-9, characterized in that, It includes a laser cladding layer (100), which includes a first cladding layer (101) and a second cladding layer (102) forming a sharp angle. The length and thickness of the first cladding layer (101) are different from those of the second cladding layer (102). The angle between the outer surface of the first cladding layer (101) and the outer surface of the second cladding layer (102) is 30°-40°.