Flexible measuring clamp for high-speed rail locomotive wheels

Abstract

The utility model discloses a flexible measuring clamp for high-speed rail locomotive wheels, which comprises a bottom plate, two supporting rods and two fixing rods are mounted at the upper end of the bottom plate, and locomotive wheel bodies are placed between the fixing rods and the supporting rods; a limiting plate is fixed to the bottom plate through screws, a supporting plate is installed on the limiting plate, the locomotive wheel bodies are supported through the supporting plate, and meanwhile the locomotive wheel bodies with different diameters can be clamped; and the fixed rod is rotationally connected with a threaded rod. According to the flexible measurement clamp for the high-speed railway locomotive wheel, the supporting plate is of an arc-shaped structure, the interior of the supporting plate is of an inclined structure, the contact areas of locomotive wheel bodies with different diameters and the supporting plate are the same, the locomotive wheel bodies with different diameters can be limited, and then the supporting plate can wrap the outer sides of the locomotive wheel bodies; and the stability of the locomotive wheel body is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel measuring fixtures, in particular to a flexible measuring fixture for high-speed rail locomotive wheels. Background Art

[0002] High-speed locomotive wheels are a key component that affects whether the train can run safely. If the precision of the high-speed locomotive wheels is not high, radial runout and axial runout will occur during the running of the train. Therefore, after the high-speed locomotive wheels are manufactured, they need to be tested to select high-precision high-speed locomotive wheels.

[0003] In the railway locomotive manufacturing industry, especially for high-speed transmission wheels, which are heavy and have high dimensional accuracy, three-coordinate measuring machines are usually used to measure the wheels precisely. The current conventional method is to place the wheels in a horizontal position, and then turn them over for measurement after one side is measured, which has low measurement efficiency.

[0004] For example, in the wheel processing fixture with publication number CN117103120, one end of the connecting shaft is fixedly connected to the U-shaped frame, and a pair of clamping frames are movably installed at both ends of the U-shaped frame. The wheel processing fixture also includes a wheel supporting mechanism, which is installed on the U-shaped frame and is used to support the wheel at different heights.

[0005] The above-mentioned wheel clamp is used to support the high-speed rail locomotive wheel through the arrangement of a U-shaped frame and a wheel support mechanism. Since the high-speed rail locomotive wheels may have wheels of different diameters, and the outer radians of wheels of different diameters are different, and since the structure of the U-shaped frame is fixed, there is a difference in the contact surface area between the wheels of different diameters and the U-shaped frame, and thus the force applied by the U-shaped frame to the wheel is different. When the contact surface is small, uneven force is likely to cause shaking, and therefore the range of the clamp to clamp the wheel is relatively small. Utility Model Content

[0006] The purpose of the utility model is to provide a flexible measuring fixture for high-speed rail locomotive wheels to solve the problem raised in the above-mentioned background technology that there are differences in the contact surface areas between wheels of different diameters and U-shaped frames on the market, so that the forces applied by the U-shaped frame to the wheels are different. When the contact surface is small, uneven force is easily caused to shake, so the range of the clamping of the wheel is relatively small.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flexible measuring fixture for high-speed rail locomotive wheels, comprising a bottom plate, two support rods and two fixing rods are installed on the upper end of the bottom plate, and the locomotive wheel body is placed between the fixing rods and the support rods;

[0008] The invention also includes: fixing a limit plate on the bottom plate by screws, the limit plate is provided with a support plate, the locomotive wheel body is supported by the support plate, and locomotive wheel bodies with different diameters can be clamped at the same time;

[0009] The fixing rod is rotatably connected to the threaded rod, and a limiting plate is fixed on one end of the threaded rod close to the locomotive wheel body, and the other end of the limiting plate is in contact with the locomotive wheel body.

[0010] Preferably, the side of the support plate close to the locomotive wheel body is arranged as an inclined structure, and the support plate is arranged as an arc structure, and the structure of the support plate can support locomotive wheel bodies of different diameters, and locomotive wheel bodies of different diameters have different arcs.

[0011] Preferably, a limit block is installed at one end of the support rod close to the locomotive wheel body, and the limit block is made of nylon material, and the limit block and the locomotive wheel body are in close contact with each other.

[0012] Preferably, the distance between the two limiting plates is smaller than the diameter of the locomotive wheel body, and the diameter of the locomotive wheel body is larger than the shortest distance between the two limiting plates.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a support plate and a limit plate, the limit plate is fixed on the bottom plate, the support plate is installed on the limit plate, the support plate and the limit plate support and limit the lower end of the locomotive wheel body, the support plate is an arc structure and the inside of the support plate is an inclined structure, the contact area between the locomotive wheel bodies of different diameters and the support plate is the same, the locomotive wheel bodies of different diameters can be limited, and then the support plate can wrap the outer side of the locomotive wheel body, so that the stability of the locomotive wheel body is greatly improved.

[0015] 2. The utility model is provided with a limit plate and a threaded rod, and the threaded rod is threadedly connected to the fixed rod. The limit plate can be moved forward and backward by rotating the threaded rod. The limit plate moves forward and backward and conflicts with the front end of the locomotive wheel body. The positions of locomotive wheel bodies of different diameters on the support plate are different, so the position of the limit plate needs to be adjusted. The setting of the limit plate and the limit block can limit the two sides of the locomotive wheel body. The locomotive wheel can be positioned and clamped through the support plate to meet the vertical posture of various high-speed rail wheels and subway wheels. After clamping is completed, the three-coordinate measuring machine can completely measure all dimensions at one time, so that the clamping range of the clamping device is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2This is a schematic diagram of the structure of the limit block of the utility model from top view;

[0018] Figure 3 It is a rear view structural schematic diagram of the utility model.

[0019] In the figure: 1, bottom plate; 2, support rod; 3, limit block; 4, limit plate; 5, locomotive wheel body; 6, support plate; 7, fixing rod; 8, limit plate; 9, threaded rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 3 , the utility model provides the following technical solutions:

[0022] A flexible measuring fixture for high-speed rail locomotive wheels comprises a base plate 1, two support rods 2 and two fixing rods 7 are installed on the upper end of the base plate 1, and a locomotive wheel body 5 is placed between the fixing rods 7 and the support rods 2; it also comprises: a limit plate 4 is fixed on the base plate 1 by screws, a support plate 6 is installed on the limit plate 4, the locomotive wheel body 5 is supported by the setting of the support plate 6, and locomotive wheel bodies 5 of different diameters can be clamped at the same time; the side of the support plate 6 close to the locomotive wheel body 5 is arranged as an inclined structure, and the support plate 6 is arranged as an arc structure, and locomotive wheel bodies 5 of different diameters can be supported by the structure of the support plate 6, and locomotive wheel bodies 5 of different diameters have different arcs.

[0023] Combination Figure 1 and Figure 2 As shown, the locomotive wheel body 5 is placed on the support plate 6 and pushed backward by hand until the locomotive wheel body 5 moves on the support plate 6 and cannot move any further. The locomotive wheel body 5 is limited by the setting of the support plate 6. According to the setting of the support plate 6, the locomotive wheel bodies 5 of different diameters can be limited, so that the support plate 6 is completely fitted with the outer side of the locomotive wheel body 5, and the contact area between the locomotive wheel body 5 and the support plate 6 is the same, so as to avoid the clamping of the locomotive wheel body 5 due to the small force point, thereby improving the stability of the locomotive wheel body 5.

[0024] The fixing rod 7 is rotatably connected to the threaded rod 9, and a limiting plate 8 is fixed to one end of the threaded rod 9 close to the locomotive wheel body 5, and the other end of the limiting plate 8 is in contact with the locomotive wheel body 5, and the spacing between the two limiting plates 8 is smaller than the diameter of the locomotive wheel body 5, and the diameter of the locomotive wheel body 5 is larger than the shortest distance between the two limiting plates 8. A limiting block 3 is installed at one end of the support rod 2 close to the locomotive wheel body 5, and the limiting block 3 is made of nylon material, and the limiting block 3 is in contact with the locomotive wheel body 5.

[0025] Then, the threaded rod 9 is rotated by hand. The threaded rod 9 moves forward and backward during the rotation. The threaded rod 9 drives the limit plate 8 to move synchronously during the rotation and movement. The threaded rod 9 stops rotating and stops rotating. This means that the limit plate 8 moves to conflict with the locomotive wheel body 5. The locomotive wheel body 5 is fixed by the setting of the limit plate 8 to keep the locomotive wheel body 5 in a vertical state. After clamping, all dimensions can be measured at one time using a three-dimensional coordinate measuring machine.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flexible measuring fixture for a high-speed railway locomotive wheel, comprising a base plate (1), two support rods (2) and two fixing rods (7) being mounted on the upper end of the base plate (1), and a locomotive wheel body (5) being placed between the fixing rods (7) and the support rods (2); It is characterized in that Also includes: A limit plate (4) is fixed on the bottom plate (1) by means of screws, and a support plate (6) is mounted on the limit plate (4). The support plate (6) is arranged to support the locomotive wheel body (5), and locomotive wheel bodies (5) of different diameters can be clamped at the same time; The fixing rod (7) is rotatably connected to a threaded rod (9), and a limiting plate (8) is fixed to one end of the threaded rod (9) close to the locomotive wheel body (5), and the other end of the limiting plate (8) is in contact with the locomotive wheel body (5).

2. The flexible measuring fixture for high-speed rail locomotive wheels according to claim 1, characterized in that: The side of the support plate (6) close to the locomotive wheel body (5) is provided with an inclined structure, and the support plate (6) is provided with an arc structure. The structure of the support plate (6) can support locomotive wheel bodies (5) of different diameters, and locomotive wheel bodies (5) of different diameters have different arcs.

3. The flexible measuring fixture for high-speed rail locomotive wheels according to claim 1, characterized in that: A limit block (3) is installed at one end of the support rod (2) close to the locomotive wheel body (5), and the limit block (3) is made of nylon material. The limit block (3) and the locomotive wheel body (5) fit each other.

4. The flexible measuring fixture for high-speed rail locomotive wheels according to claim 1, characterized in that: The distance between the two limiting plates (8) is smaller than the diameter of the locomotive wheel body (5), and the diameter of the locomotive wheel body (5) is larger than the shortest distance between the two limiting plates (8).

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