A wear resistant elastomeric pin

Abstract

The utility model discloses a kind of wear-resistant elastic pins, the device includes: pin body, the pin body one side is equipped with elastic opening, the pin body both ends are equipped with guide part, the pin body gradually includes inner core layer, transition layer and wear layer from inside to outside, the incision edge of the elastic opening is arc transition, the guide part is conical, the surface of the guide part is also coated with wear layer.The utility model has the advantages that pin body gradually sets inner core layer, transition layer and wear layer from inside to outside, wherein wear layer adopts tungsten carbide material, tungsten carbide hardness is extremely high, wear resistance is excellent, can effectively resist external friction, greatly reduce the wear degree of elastic pin in use process, prolong its service life;Meanwhile, wear layer surface is formed microtexture after shot blasting treatment, this microtexture can change the contact state of friction interface, reduce friction coefficient, further improve wear resistance.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical connector technology, specifically relating to a wear-resistant elastic pin. Background Technology

[0002] In the field of mechanical engineering and equipment manufacturing, elastic pins are a key connecting and fixing component, and their performance directly affects the stability and durability of mechanical structures. While traditional elastic pins can meet basic connection requirements to a certain extent, they often experience severe wear under long-term exposure to high loads, high-frequency reciprocating motion, or friction. This wear not only leads to a gradual increase in the clearance between the elastic pin and the mounting hole, affecting the tightness and precision of the connection, but may also cause premature failure of the elastic pin, such as breakage or a significant decrease in its elasticity, thus threatening the normal operation of the entire mechanical system.

[0003] Therefore, there is an urgent need to provide a wear-resistant elastic pin to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a wear-resistant elastic pin to solve the technical problem that traditional elastic pins often experience severe wear when subjected to high loads and high-frequency reciprocating motion or friction over a long period of time.

[0005] To solve the above-mentioned technical problems, this utility model provides a wear-resistant elastic pin, comprising: a pin body, an elastic opening on one side of the pin body, and guide portions at both ends of the pin body. The pin body includes an inner core layer, a transition layer, and a wear-resistant layer from the inside to the outside. The cut edge of the elastic opening is rounded, the guide portion is conical, and the surface of the guide portion is also coated with a wear-resistant layer.

[0006] As further explained, the inner core layer is made of spring steel, the transition layer is made of nickel-based alloy, and the wear-resistant layer is made of tungsten carbide.

[0007] As a further explanation, the surface of the wear-resistant layer is shot-peened to form a micro-texture.

[0008] As further explained, the inner core layer is provided with several reinforcing ribs.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. The pin body is composed of an inner core layer, a transition layer, and a wear-resistant layer from the inside out. The wear-resistant layer is made of tungsten carbide, which has extremely high hardness and excellent wear resistance. It can effectively resist external friction, significantly reduce the wear of the elastic pin during use, and extend its service life. At the same time, the surface of the wear-resistant layer is shot-peened to form a micro-texture. This micro-texture can change the contact state of the friction interface, reduce the coefficient of friction, and further improve the wear resistance.

[0011] 2. The inner core layer is made of spring steel, which has good elasticity and strength, providing the elastic pin with basic load-bearing capacity and elastic deformation capability. Several reinforcing ribs are set in the inner core layer to further enhance the structural strength of the elastic pin, so that it can effectively prevent deformation when subjected to high load and high frequency reciprocating motion, and ensure the stability of mechanical connection. The transition layer is made of nickel-based alloy, which can enhance the bonding force between the inner core layer and the wear-resistant layer, ensuring that the structure of each layer is tightly combined and works together to improve the overall reliability of the elastic pin.

[0012] 3. The elastic opening on one side of the pin body has a rounded edge, which avoids stress concentration caused by sharp edges during installation and use, and reduces damage to the pin body itself and its mating parts; the tapered guides at both ends of the pin body facilitate quick and accurate insertion of the elastic pin into the mounting hole, reducing installation difficulty and frictional resistance during insertion. At the same time, the wear-resistant coating on the surface of the guides protects them from wear during repeated insertion and removal, ensuring installation accuracy and the service life of the elastic pin.

[0013] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a preferred three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the composition of the pin body of this utility model.

[0018] In the picture:

[0019] 1. Pin body, 2. Elastic opening, 3. Guide part, 101. Inner core layer, 102. Transition layer, 103. Wear-resistant layer. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Reference Figure 1-2 A wear-resistant elastic pin, characterized in that it comprises: a pin body 1, an elastic opening 2 on one side of the pin body 1, and guide portions 3 at both ends of the pin body 1. The pin body 1 includes, from the inside to the outside, an inner core layer 101, a transition layer 102, and a wear-resistant layer 103. The inner core layer 101 provides elasticity, the transition layer 102 enhances the bonding strength between the inner core and the outer layer, and the wear-resistant layer 103 resists surface wear. The cut edge of the elastic opening 2 is rounded, which provides better wear resistance than a flat opening and improves reliability under dynamic load. The guide portion 3 is conical, and the surface of the guide portion 3 is also coated with the wear-resistant layer 103. The conical shape facilitates insertion, and the wear-resistant layer 103 on the guide portion 3 can reduce assembly wear, reduce installation resistance, and prevent loosening of the fit caused by early wear of the guide portion 3.

[0022] like Figure 2 As shown, the inner core layer 101 is made of spring steel, which has good elasticity and strength and can meet the basic requirements for the use of elastic pins; the transition layer 102 is made of nickel-based alloy, which can enhance the bonding force between the inner core layer 101 and the wear-resistant layer 103; the wear-resistant layer 103 is made of tungsten carbide, which has the characteristics of high hardness and good wear resistance, and can effectively resist external friction and extend the service life of the elastic pin; this utility model adopts a multi-layer structure, which effectively improves the overall performance of the elastic pin.

[0023] like Figure 2 As shown, the surface of the wear-resistant layer 103 is shot-peened to form a micro-texture. This micro-texture increases the surface roughness of the wear-resistant layer 103, enhancing its friction with external objects and thus reducing slippage and wear of the elastic pin during use. Shot peening also improves the microstructure of the wear-resistant layer 103, increasing its hardness and toughness, further enhancing its wear resistance.

[0024] like Figure 2As shown, the inner core layer 101 is provided with several reinforcing ribs. These ribs increase the stiffness and strength of the inner core layer 101, improving the elastic pin's resistance to deformation under heavy loads. The ribs also disperse stress in the inner core layer 101, reducing stress concentration and extending the service life of the elastic pin.

[0025] All components selected in this application (parts whose specific structures are not described) are general standard parts or parts known to those skilled in the art, and their structures and principles can be obtained by those skilled in the art through technical manuals.

[0026] This knowledge can be obtained through conventional experimental methods.

[0027] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0028] In addition, in the various embodiments of this utility model, each functional unit can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0029] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A wear-resistant elastic pin, characterized in that, include: The pin (1) has an elastic opening (2) on one side and guide portions (3) at both ends. The pin (1) includes an inner core layer (4), a transition layer (5) and a wear-resistant layer (6) from the inside to the outside. The cut edge of the elastic opening (2) is rounded. The guide portion (3) is conical and the surface of the guide portion (3) is also coated with a wear-resistant layer (6).

2. The wear-resistant elastic pin as described in claim 1, characterized in that, The inner core layer (4) is made of spring steel, the transition layer (5) is made of nickel-based alloy, and the wear-resistant layer (6) is made of tungsten carbide.

3. The wear-resistant elastic pin as described in claim 2, characterized in that, The wear-resistant layer (6) surface is shot-peened to form a micro-texture.

4. The wear-resistant elastic pin as described in claim 2, characterized in that, The inner core layer (4) is provided with several reinforcing ribs.

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