Reinforced polyurethane flaw detection ball

Abstract

The utility model relates to the technical field of flaw detection balls, and discloses a reinforced polyurethane flaw detection ball which comprises a tread, inclined planes are arranged in the middles of the outer walls of the two sides of the tread, spigots are arranged on the sides, close to the center of the tread, of the inclined planes, deep grooves are formed by the tread, the inclined planes and the spigots, and a metal net is arranged in the tread. According to the utility model, the flaw detection ball is integrally formed by casting polyurethane NDI, and the reinforcing layer of the metal net woven by the copper wires is arranged in the tread, so that the mechanical strength, the wear resistance and the bearing capacity of the flaw detection ball are improved, the damage of the flaw detection ball caused by long-time work is prevented, and the service life of the flaw detection ball is prolonged to a certain extent; the influence of the flaw detection wheel on steel rail detection is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flaw detection balls, in particular to a reinforced polyurethane flaw detection ball. Background Art

[0002] As a main component of the railway line foundation, the rail is damaged due to the huge pressure of the vehicle, endangering the safety of railway operation. At this time, rail flaw detection operations are required. During the rail flaw detection operation, the detection wheel film of the flaw detection ball is in direct contact with the rail surface. During the detection, due to the high-speed rolling contact between the detection wheel film of the flaw detection ball and the rail surface, natural wear is inevitably generated, resulting in the thinning of the detection wheel film, or the damage of the detection wheel in poor condition areas, which in turn affects the detection accuracy or causes undetected areas in some sections.

[0003] Therefore, the technical personnel in this field provide a reinforced polyurethane flaw detection ball to solve the problems proposed in the above background art. Content of the Utility Model

[0004] The purpose of the content of the utility model is to solve the shortcomings existing in the prior art, and a reinforced polyurethane flaw detection ball is proposed. By integrally casting the flaw detection ball with polyurethane NDI, and a reinforcing layer using a metal mesh woven with copper wire is arranged inside the tread surface, the mechanical strength, wear resistance and load-bearing capacity of the flaw detection ball are improved, the service life of the flaw detection ball is extended to a certain extent, and the influence of the detection wheel on rail detection is reduced.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A reinforced polyurethane flaw detection ball includes a tread surface. The middle parts of the outer walls on both sides of the tread surface are provided with inclined surfaces. One side of the inclined surface close to the center of the tread surface is provided with a rabbet. The tread surface, the inclined surface and the rabbet form a deep groove, and a metal mesh is arranged inside the tread surface.

[0007] Further, the tread surface, the inclined surface and the rabbet are all integrally cast with polyurethane NDI;

[0008] Through the above technical solutions, it is convenient to integrally cast the tread surface, the inclined surface and the rabbet with polyurethane NDI, so that the three have high hardness, high tensile strength and tear resistance, low compression permanent deformation and wear resistance, and there are no cracks and air bubbles in the three, thus improving the mechanical strength and load-bearing capacity of the three.

[0009] Further, the metal mesh is woven and formed with copper wire;

[0010] Through the above technical solution, it is convenient to improve the mechanical properties of the tread by the metal mesh woven with copper wire, reduce the ultrasonic signal attenuation of the reinforced polyurethane flaw detection ball, and improve the resilience performance of the tread after pressing.

[0011] Furthermore, the edge of the metal mesh is closed and there is no broken wire at the edge;

[0012] Through the above technical solution, the design that the edge of the metal mesh is closed and there is no broken wire can prevent the edge from being damaged when subjected to external force, thereby improving the durability of the tread.

[0013] The utility model has the following beneficial effects:

[0014] A reinforced polyurethane flaw detection ball proposed by the utility model enhances the mechanical strength of the tread by arranging a reinforcing layer of a metal mesh woven with copper wire inside the tread, and the flaw detection ball is integrally cast by polyurethane NDI, thereby improving the hardness, high tensile strength and tear resistance, and low compression permanent deformation of the flaw detection ball, further improving the wear resistance of the flaw detection ball, and preventing the damage of the flaw detection ball from affecting the detection of the rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of a reinforced polyurethane flaw detection ball proposed by the utility model;

[0016] Figure 2 It is a front view of a reinforced polyurethane flaw detection ball proposed by the utility model;

[0017] Figure 3 It is a side view of a reinforced polyurethane flaw detection ball proposed by the utility model;

[0018] Figure 4 It is an axial sectional view of a reinforced polyurethane flaw detection ball proposed by the utility model.

[0019] Legend:

[0020] 1, tread; 2, inclined plane; 3, rabbet; 4, deep groove; 5, metal mesh. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the specific embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the specific embodiments of the utility model. Obviously, the described specific embodiments are only a part of the specific embodiments of the utility model, rather than all of the specific embodiments. Based on the specific embodiments of the utility model, all other specific embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0022] Refer to Figures 1-4, a specific implementation provided by the present utility model: a reinforced polyurethane flaw detection ball, including a tread surface 1. On the middle of the outer walls on both sides of the tread surface 1, inclined surfaces 2 are provided. On one side of the inclined surfaces 2 close to the center of the tread surface 1, rabbets 3 are provided. The tread surface 1, the inclined surfaces 2 and the rabbets 3 form a deep groove 4. Inside the tread surface 1, a metal mesh 5 is provided.

[0023] By providing a reinforcing layer of a metal mesh 5 woven with copper wires inside the tread surface 1, the mechanical strength of the tread surface 1 is enhanced. And by integrally casting the flaw detection ball with polyurethane NDI, the hardness, high tensile strength, tear resistance and low compression set of the flaw detection ball are improved, thereby enhancing the wear resistance of the flaw detection ball.

[0024] The tread surface 1, the inclined surfaces 2 and the rabbets 3 are all integrally cast with polyurethane NDI. It is convenient through the tread surface 1, the inclined surfaces 2 and the rabbets 3 integrally cast with polyurethane NDI, so that the three have hardness, high tensile strength, tear resistance, low compression set and wear resistance, and there are no problems such as cracks and air bubbles in the three, thereby enhancing the mechanical strength and load-bearing capacity of the three. The metal mesh 5 is woven and formed with copper wires. It is convenient to enhance the mechanical properties of the tread surface 1 through the metal mesh 5 woven with copper wires, reduce the ultrasonic signal attenuation of the reinforced polyurethane flaw detection ball, and enhance the resilience performance of the tread surface 1 after being pressed. The edge of the metal mesh 5 is closed and there is no broken wire at the edge. The design that the edge of the metal mesh 5 is closed and there is no broken wire can prevent the edge from being damaged when subjected to external force, thereby improving the durability of the tread surface.

[0025] Working principle: By providing a reinforcing layer of a metal mesh 5 woven with copper wires inside the tread surface 1, the mechanical strength of the tread surface 1 is enhanced. And by integrally casting the flaw detection ball with polyurethane NDI, the hardness, high tensile strength, tear resistance and low compression set of the flaw detection ball are improved, thereby enhancing the wear resistance and load-bearing capacity of the flaw detection ball.

[0026] Finally, it should be noted that the above is only the preferred specific implementation of the present utility model and is not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific implementation, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing specific implementations, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A reinforced polyurethane flaw detection ball, comprising a tread (1), characterized in that: The middle parts of the outer walls on both sides of the tread (1) are provided with inclined surfaces (2), and the sides of the inclined surfaces (2) close to the center of the tread (1) are provided with stoppers (3). The tread (1), the inclined surfaces (2) and the stoppers (3) form a deep groove (4), and a metal mesh (5) is provided inside the tread (1).

2. A reinforced polyurethane flaw detection ball according to claim 1, characterized in that: The tread (1), the inclined surface (2) and the stopper (3) are all integrally formed by pouring polyurethane NDI.

3. A reinforced polyurethane flaw detection ball according to claim 1, characterized in that: The metal mesh (5) is formed by weaving copper wires.

4. The reinforced polyurethane flaw detection ball according to claim 1, characterized in that: The metal mesh (5) has closed edges and no broken wires at the edges.

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