Bullet train axle thermal mechanical fatigue test device

Abstract

The utility model relates to the field of bullet train axle detection, in particular to a bullet train axle thermal mechanical fatigue test device. The utility model provides the thermal mechanical fatigue test device for the bullet train axle, which can be used for carrying out fatigue detection on the axle at different temperatures and different pressures, improving the detection efficiency and accuracy, reducing the detection cost and improving the use convenience. A thermal mechanical fatigue experiment device for a bullet train axle comprises a base, a motor, a rotating shaft and the like, the motor is detachably connected to the upper side of the left portion of the base, and the rotating shaft is connected to an output shaft of the motor. The axle is heated through the heating pipe, the cooling liquid is sprayed out through the cooling liquid nozzle to cool the axle, then water is injected into the rotating barrel through the water pump, the gravity is increased for the axle during rotation of the axle, and a fatigue test is carried out, so that fatigue detection can be carried out on the axle at different temperatures and different pressures; the detection efficiency and accuracy are improved, the detection cost is reduced, and the use convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of EMU wheel axle detection, especially to an EMU wheel axle thermal mechanical fatigue experiment device. BACKGROUND

[0002] The EMU wheel axle is one of the key components of the EMU train, mainly responsible for supporting the weight of the car body, transmitting traction and braking force, and ensuring the safe and smooth operation of the train. The thermal mechanical fatigue experiment of the EMU wheel axle is an important means to evaluate its durability and reliability under actual operating conditions. This experiment simulates the thermal mechanical stress of the EMU wheel axle under high-speed operation and complex working conditions to ensure its long-term stable operation.

[0003] The existing EMU wheel axle fatigue experiment usually places the EMU wheel axle in a fatigue experiment machine for fixation, then applies downward force to the EMU wheel axle through the operation of the fatigue experiment machine to test the EMU wheel axle. The current detection equipment has a single function, can only perform extrusion testing, cannot realize fatigue detection at different temperatures, needs to use additional equipment for auxiliary testing, and is prone to low detection efficiency, high detection cost, and inconvenient use.

[0004] Therefore, it is necessary to design an EMU wheel axle thermal mechanical fatigue experiment device that can perform fatigue detection on the axle at different temperatures and different pressures, improve the efficiency and accuracy of detection, reduce the cost of detection, and improve the convenience of use. UTILITY MODEL CONTENTS

[0005] In order to overcome the shortcomings of the current detection equipment, which has a single function, can only perform extrusion testing, cannot realize fatigue detection at different temperatures, needs to use additional equipment for auxiliary testing, is prone to low detection efficiency, high detection cost, and inconvenient use, the utility model provides an EMU wheel axle thermal mechanical fatigue experiment device that can perform fatigue detection on the axle at different temperatures and different pressures, improve the efficiency and accuracy of detection, reduce the cost of detection, and improve the convenience of use.

[0006] An EMU wheel axle thermal mechanical fatigue experiment device includes a base, a motor, a rotating shaft, an axle, a temperature adjustment assembly, and a weight bearing assembly. The motor is detachably connected to the left upper side of the base. The output shaft of the motor is connected to the rotating shaft. The rotating shaft is detachably connected to the right side of the axle. The base is provided with the temperature adjustment assembly in the middle. The base is provided with the weight bearing assembly on the right.

[0007] As a further preferred scheme, the temperature adjustment assembly includes a heating box, a heating pipe, a cooling nozzle, and a hatch. The heating box is connected to the upper side of the middle of the base. The axle passes through the heating box. The heating pipe is connected to the front side of the rear part of the heating box. The cooling nozzle is connected to the upper part of the heating box. The hatch is rotatably connected to the upper side of the rear part of the heating box.

[0008] As a further preferred solution, the hatch is L-shaped.

[0009] As a further preferred solution, the weight assembly comprises a rotating barrel, rollers, a water tank and water pipes, the rotating barrel is rotatably connected to the right part of the heating tank, the rotating barrel is connected to the axle, the front and rear parts of the base are rotatably connected to the left and right rollers, the rollers are in contact with the rotating barrel, the front and rear water pipes are rotatably connected to the right side of the rotating barrel, the water tank is connected to the water pipes through the water pump, and the water tank is connected to the base.

[0010] As a further preferred solution, the upper side of the water tank is provided with a tank cover.

[0011] As a further preferred solution, it also comprises an observation window, and the upper side of the hatch is connected with the observation window.

[0012] The utility model has the advantages that: the utility model heats the axle through the heating pipe, cools the axle through the cooling night spray head, then pours water into the rotating barrel through the water pump, increases the gravity of the axle when the axle rotates, and carries out fatigue experiment, so that the axle can be detected under different temperature and different pressure, the efficiency and accuracy of detection are improved, the cost of detection is reduced, and the convenience of use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the first kind of three-dimensional structure schematic diagram of the utility model.

[0014] Figure 2 It is the second kind of three-dimensional structure schematic diagram of the utility model.

[0015] Wherein: 1-base, 2-motor, 3-rotating shaft, 4-axle, 5-heating tank, 50-heating pipe, 6-cooling night spray head, 7-hatch, 8-observation window, 9-rotating barrel, 10-roller, 11-water tank, 12-water pipe. DETAILED DESCRIPTION

[0016] The utility model will be further explained in combination with specific embodiment, still need to explain, unless another explicit provision and limitation, the term such as: set up, install, connect, connect should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;It can be directly connected, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements.For the person skilled in the art, the above-mentioned terms can be understood in the specific meaning in the utility model according to specific circumstances.

[0017] A bullet train axle thermal mechanical fatigue experiment device, like Figure 1 And Figure 2As shown, including the base 1, motor 2, rotating shaft 3, axle 4, heating box 5, heating pipe 50, cooling night nozzle 6, hatch 7, observation window 8, rotating barrel 9, roller 10, water tank 11 and water pipe 12, the left side of the base 1 is detachably connected with the motor 2, the output shaft of the motor 2 is connected with the rotating shaft 3, the right side of the rotating shaft 3 is detachably connected with the axle 4, the middle of the base 1 is connected with the heating box 5, the axle 4 passes through the heating box 5, the rear of the heating box 5 is connected with the heating pipe 50, the upper part of the heating box 5 is connected with the cooling night nozzle 6, the upper side of the rear of the heating box 5 is rotatably connected with the hatch 7, the hatch 7 is L-shaped, the upper side of the hatch 7 is connected with the observation window 8, which is convenient for observing the internal experiment, the right part of the heating box 5 is rotatably connected with the rotating barrel 9, the rotating barrel 9 is connected with the axle 4, the front and rear parts of the base 1 are rotatably connected with the left and right two rollers 10, the rollers 10 are in contact with the rotating barrel 9, the right side of the rotating barrel 9 is rotatably connected with the front and rear two water pipes 12, the water pipes 12 are connected with the water tank 11 through the water pump, the water tank 11 is connected with the base 1, and the upper side of the water tank 11 is provided with a tank cover, which is convenient for taking down to add water.

[0018] When the high-speed train axle needs to be subjected to thermal mechanical fatigue experiment, the device can be used, so that the base 1 is in contact with the ground, then the hatch 7 is opened by rotating, the hatch 7 is L-shaped, then the axle 4 is taken up, so that the axle 4 passes through the heating box 5 and is connected with the water tank 11, then the motor 2 is placed on the base 1, so that the rotating shaft 3 is in contact with the axle 4, then the motor 2 is fixed on the base 1 through the bolt, then the rotating shaft 3 and the axle 4 are fixed through the bolt, then the hatch 7 is closed by reversing, then the tank cover is taken off, the water is poured into the water tank 11, then the tank cover is connected with the water tank 11, then the motor 2 is started, the rotating shaft 3 is driven to rotate through the motor 2, and then the axle 4 is driven to rotate, in the process of rotating, the heating pipe 50 is started, the axle 4 is heated through the heating pipe 50, the cooling liquid is connected with the cooling night nozzle 6, the cooling liquid enters the cooling night nozzle 6 to spray and cool the axle 4, and then the high-speed train axle is subjected to fatigue experiment at different temperatures, then the water pump is started, the water in the water tank 11 is injected into the rotating barrel 9 through the water pump, after adding appropriate water, the water pump is closed, when the rotating shaft 3 rotates to drive the axle 4 to rotate, the water tank 11 also moves, so as to increase the gravity of the axle 4, and then the water inflow of the rotating barrel 9 is controlled to adjust the gravity applied to the axle 4 for fatigue experiment, so that the axle 4 can be subjected to fatigue detection under different temperatures and different pressures, the detection efficiency and accuracy are improved, the detection cost is reduced, and the use convenience is improved. In the process of testing, the internal experiment is observed through the observation window 8, after the detection is completed, the heating pipe 50 and the motor 2 are turned off, then the bolt is taken off, the motor 2 is taken off, the rotating shaft 3 is separated from the axle 4, and then the axle 4 is taken off.

[0019] Finally, it should be explained that the above examples are only used to illustrate the technical solutions of the present application, but not to limit the scope of protection of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A device for testing the thermal mechanical fatigue of a wheel axle of a train, characterized in that it comprises: The utility model provides a temperature regulation and weight bearing device for a vehicle, which comprises a base (1), a motor (2), a rotating shaft (3), an axle (4), a temperature regulation assembly and a weight bearing assembly.

2. The apparatus for testing thermal mechanical fatigue of a wheel axle of a train according to claim 1, wherein The temperature regulation assembly comprises a heating box (5), a heating pipe (50), a cooling nozzle (6) and a hatch (7).

3. The apparatus for testing the thermal mechanical fatigue of a wheel axle of a rolling stock according to claim 2, characterized in that, The hatch (7) is L-shaped.

4. The apparatus for testing the thermal mechanical fatigue of a wheel axle of a rolling stock according to claim 3, wherein The weight bearing assembly comprises a rotating barrel (9), a roller (10), a water tank (11) and a water pipe (12).

5. The apparatus for testing the thermal mechanical fatigue of a wheel axle of a rolling stock according to claim 4, characterized in that, The water tank (11) is provided with a tank cover on the upper side.

6. The apparatus for testing the thermal mechanical fatigue of a wheel axle of a rolling stock according to claim 5, wherein The utility model also comprises an observation window (8), which is connected to the upper side of the hatch (7).

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