Tester wheel set and manufacturing method thereof

Abstract

The invention discloses a tester wheel set and a manufacturing method thereof, and the method is characterized in that the method comprises the following specific steps: S1, purchasing a walking wheel body, and inspecting the walking wheel body; s2, the walking wheel body is mounted on the mounting shaft; s3, the bearings are mounted on the mounting shaft, the bearings are located on the two sides of the walking wheel body, and the finished tester wheel set can be obtained.

Description

Technical Field

[0001] The invention belongs to the technical field of test accessories and relates to a tester wheel set and a manufacturing method thereof. Background Art

[0002] During the operation of a train or high-speed rail, accurate measurement of its speed is crucial. In order to ensure the safety and efficiency of train operation, we usually use axle pulse speed sensors to perform this critical speed measurement. The axle pulse speed sensor detects the rotation speed of the wheels and converts this data into electrical signals, thereby monitoring the speed changes of the train in real time.

[0003] The tester wheel is an important part of the wheel axle pulse speed sensor. There is no relevant manufacturing method thereof in the prior art. Therefore, it is necessary to design a tester wheel set and a manufacturing method thereof to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems in the prior art and to provide a tester wheel set and a manufacturing method thereof.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is: a tester wheel set and a manufacturing method thereof, characterized in that it includes a walking wheel body, a mounting shaft and two bearings, the walking wheel body is installed in the middle of the mounting shaft, the walking wheel body is a hollow cylindrical structure, the bearings are installed at the ends of the mounting shaft, and the bearings are arranged on both sides of the walking wheel body, and the material of the walking wheel body is silicon nitride ceramic.

[0006] The surface roughness of the walking wheel body is Ra0.8.

[0007] The mounting shaft includes a fixed shaft body, and the fixed shaft body cooperates with the walking wheel body. Both ends of the fixed shaft body have limiting bosses, and the diameter of the limiting bosses is larger than the diameter of the fixed shaft body. The limiting boss is connected to a fixed boss outside the limiting boss, and the fixed boss cooperates with the bearing. One of the fixed bosses also has a working boss outside the fixed boss, and the diameter of the working boss is larger than the diameter of the fixed boss.

[0008] The manufacturing method of the tester wheel set is characterized by comprising the following specific steps: S1. Purchase the walking wheel body and inspect it; S2. Install the walking wheel body on the mounting shaft; S3. Install the bearing on the mounting shaft and make the bearings located on both sides of the walking wheel body, and the finished tester wheel set can be obtained.

[0009] By adopting the above technical solution, the beneficial effects of the present invention are: The present invention can be easily manufactured through the above method; at the same time, by connecting the walking wheel body at the center position of the installation shaft and arranging a bearing on both sides of the installation shaft, the structural optimization is achieved; the walking wheel body is made of silicon nitride ceramic material and is installed in the detection iron pipe position at the rear of vehicles such as motor vehicles or high-speed railways, and can maintain stable operating performance during high-speed operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0011] Figure 2 It is a schematic diagram of the planar structure of the present invention.

[0012] In the figure, 1, walking wheel body; 2, bearing; 3, mounting shaft; 3a, limiting boss; 3b, fixing boss; 3c, working boss; 3d, fixing shaft body. DETAILED DESCRIPTION

[0014] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0015] like Figure 1-Figure 2 As shown, the tester wheel set and its manufacturing method include a walking wheel body 1, a mounting shaft 3 and two bearings 2. In this embodiment, the model of the bearing 2 is 6202; the walking wheel body 1 is installed in the middle of the mounting shaft 3, and the walking wheel body 1 and the mounting shaft 3 are relatively fixed, and no relative rotation occurs between the two; the walking wheel body 1 is a hollow cylindrical structure, the bearing 2 is installed at the end of the mounting shaft 3, and the bearing 2 is arranged on both sides of the walking wheel body 1, and the material of the walking wheel body 1 is silicon nitride ceramic. In this embodiment, the walking wheel body 1 adopts an existing product purchased on the market.

[0016] The surface roughness of the running wheel body 1 is Ra0.8.

[0017] The mounting shaft 3 includes a fixed shaft body 3d, and the fixed shaft body 3d cooperates with the walking wheel body 1, and has limiting bosses 3a at both ends of the fixed shaft body 3d, and the diameter of the limiting boss 3a is larger than the diameter of the fixed shaft body 3d, and the limiting boss 3a is connected to the outside of the limiting boss 3a, and the fixed boss 3b cooperates with the bearing 2, and one of the fixed bosses 3b also has a working boss 3c outside, and the diameter of the working boss 3c is larger than the diameter of the fixed boss 3b.

[0018] In this embodiment, the installation shaft 3 is made of existing materials and can be an integrally formed structure.

[0019] The present invention achieves structural optimization by connecting the running wheel body 1 at the center position of the installation shaft 3 and arranging a bearing 2 on both sides of the installation shaft 3; the running wheel body 1 is made of silicon nitride ceramic material and is installed at the detection iron pipe position at the rear of vehicles such as motor vehicles or high-speed railways, and can maintain stable operating performance during high-speed operation.

[0020] The manufacturing method of the tester wheel set comprises the following specific steps: S1. Purchase the walking wheel body 1 and inspect it; S2. Install the walking wheel body 1 on the mounting shaft 3; S3. Install the bearing 2 on the mounting shaft 3 and make the bearing 3 located on both sides of the walking wheel body 1, and the finished tester wheel set can be obtained.

[0021] Test it, the test data is as follows:

[0022] In summary, the silicon nitride material with a specific gravity of 3.2 is lighter, more wear-resistant, faster, resistant to freezing and high temperatures, and can remain stable at a high speed of 550km / h. In the extremely cold areas of the north, thermal expansion and contraction are controlled above zero: 800° and below zero: 150°.

[0023] The above components are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0024] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A method for manufacturing a tester wheel set, characterized in that: The specific steps include: S1. Purchase a running wheel body (1) and inspect it; S2. Install the running wheel body (1) on the mounting shaft (3); S3. Install the bearing (2) on the mounting shaft (3) and make the bearing (2) be located on both sides of the running wheel body (1), so that a finished tester wheel set can be obtained.

2. A tester wheel set, characterized in that: The invention comprises a walking wheel body (1), a mounting shaft (3) and two bearings (2), wherein the walking wheel body (1) is mounted in the middle of the mounting shaft (3), the walking wheel body (1) is a hollow cylindrical structure, the bearings (2) are mounted at the ends of the mounting shaft (3), and the bearings (2) are arranged on both sides of the walking wheel body (1), and the material of the walking wheel body (1) is silicon nitride ceramic.

3. A tester wheel set according to claim 2, characterized in that: The surface roughness of the walking wheel body (1) is Ra0.

8.

4. A tester wheel set according to claim 2, characterized in that: The mounting shaft (3) comprises a fixed shaft body (3d), and the fixed shaft body (3d) cooperates with the walking wheel body (1), and the fixed shaft body (3d) has limiting bosses (3a) at both ends, and the diameter of the limiting bosses (3a) is larger than the diameter of the fixed shaft body (3d), and the limiting bosses (3a) are externally connected to the fixing bosses (3b), and the fixing bosses (3b) cooperate with the bearing (2), and one of the fixing bosses (3b) also has a working boss (3c) outside, and the diameter of the working boss (3c) is larger than the diameter of the fixing boss (3b).

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