Tire test drum electric heating equipment

Abstract

The utility model discloses tire test drum electric heating equipment, which comprises a frame body, a drum is rotatably arranged on the frame body, the drum comprises an inner ring and an outer ring which rotate synchronously, the inner ring is connected with the frame body, and the outer ring is made of metal materials; the electromagnetic heating device is arranged on the frame body, directly faces the outer ring of the rotary drum and is used for heating the outer ring of the rotary drum; the temperature detection device is at least arranged on the frame body and is used for detecting the temperature of the outer ring of the rotary drum; according to the utility model, the problem that the real-time accurate control of the surface temperature of the rotary drum in the test process is difficult to realize due to large thermal inertia and temperature regulation response lag in the traditional rotary drum heating mode can be solved.

Description

Technical Field

[0001] This utility model relates to the field of tire testing equipment, specifically to an electric heating device for a tire testing drum. Background Technology

[0002] Tire performance testing is a crucial step in the automotive industry's research and development process. Especially when simulating high-temperature road conditions, drum testing machines are essential for accurately evaluating parameters such as tire wear resistance, thermal stability, and durability. Traditional drum testing equipment typically uses resistance wire heating or hot air circulation to heat the drum surface. However, these methods have significant drawbacks: resistance wire heating relies on heat conduction, resulting in low thermal efficiency and uneven temperature distribution; hot air circulation systems suffer from slow heating rates and excessive energy consumption due to the limited heat capacity of air. Furthermore, traditional heating methods suffer from high thermal inertia, leading to lag in temperature control and making it difficult to achieve real-time, precise temperature control of the drum surface during testing. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide an electric heating device for tire testing drums.

[0004] To achieve the above objectives, the technical solution adopted by this utility model includes: a frame, on which a rotating drum is rotatably mounted, the rotating drum including an inner ring and an outer ring that rotate synchronously, the inner ring being connected to the frame, and the outer ring being made of metal; an electromagnetic heating device disposed on the frame and directly opposite the outer ring of the rotating drum, for heating the outer ring of the rotating drum; and a temperature detection device disposed at least on the frame for detecting the temperature of the outer ring of the rotating drum.

[0005] In the preferred embodiment of the above-mentioned electric heating device for tire testing drum, the electromagnetic heating device is a heating coil disposed on the frame, and the heating coil is directly opposite the outer ring of the drum.

[0006] In the preferred embodiment of the above-mentioned tire test drum electric heating device, the temperature detection device is an infrared temperature sensor configured on the frame.

[0007] In the preferred embodiment of the above-mentioned tire test drum electric heating device, the temperature detection device is a thermocouple disposed in the outer ring of the drum and a conductive slip ring disposed in the inner ring of the drum.

[0008] In the preferred embodiment of the above-mentioned electric heating device for tire testing drum, the frame is provided with an annular support on the side facing the drum, and the electromagnetic heating device is disposed on the annular support.

[0009] In the preferred embodiment of the above-mentioned tire test drum electric heating device, the frame is provided with a driving device on the side facing the drum, the bracket is connected to the driving device and is driven by the driving device to move closer to or away from the outer ring of the drum.

[0010] In the preferred technical solution of the above-mentioned tire test drum electric heating equipment, the driving device is a drive cylinder or a lead screw module.

[0011] The beneficial effects of this invention are that by using an electromagnetic heating device to heat the outer ring of the drum, the heating efficiency of the outer ring of the drum is greatly improved, and the detection efficiency of various tire data is improved. In addition, by using a temperature detection device to monitor the temperature of the outer ring of the drum in real time, the control system can change the input power of the electromagnetic heating device in a timely manner, thereby achieving timely adjustment of the temperature of the outer ring of the drum. Attached Figure Description

[0012] Figure 1 This is a top view of the present invention;

[0013] Figure 2 This is a front view of the present invention;

[0014] In the diagram: Frame 1, Drum 2, Inner Ring 21, Outer Ring 22, Fixing Device 3, Pushing Device 4, Tire 5, Support 6, Drive Device 7. Detailed Implementation

[0015] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0016] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "front," and "rear," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] like Figures 1 to 2 As shown, the electric heating device for the tire test drum 2 of this utility model includes: a frame 1, on which a drum 2 is rotatably mounted, the drum 2 including an inner ring 21 and an outer ring 22 that rotate synchronously, the inner ring 21 being connected to the frame 1, and the outer ring 22 being made of metal; an electromagnetic heating device, which is located on the frame 1 and directly opposite the outer ring 22 of the drum 2, for heating the outer ring 22 of the drum 2; and a temperature detection device, which is located at least on the frame 1, for detecting the temperature of the outer ring 22 of the drum 2.

[0019] See Figure 1 , Figure 2 The frame 1 has a first workstation and a second workstation. The first workstation has a rotating drum 2 that can rotate relative to the frame 1. The drum 2 includes an inner ring 21 and an outer ring 22. The inner ring 21 and outer ring 22 rotate synchronously. Specifically, a servo motor can be installed on the frame 1, and the rotating shaft of the servo motor is connected to the inner ring 21 of the drum 2. By controlling the rotation of the inner ring 21 of the drum 2 through the servo motor, the synchronous rotation of the outer ring 22 of the drum 2 can be achieved. The second workstation has a fixing device 3 and a pushing device 4. The pushing device 4 can push the fixing device 3 closer to or away from the outer ring 22 of the drum 2. The pushing device 4 can be a cylinder. It should be noted that the tire 5 can rotate relative to the fixing device 3. It should also be noted that the outer ring 22 of the drum 2 is made of a metal material that can be electromagnetically induced, such as iron or other possible metals.

[0020] See Figure 2 The electromagnetic heating device is installed on the side of the frame 1 close to the drum 2. The electromagnetic heating device only heats the outer ring 22 of the drum 2, thereby improving the heating efficiency of the drum 2. The temperature detection device is used to monitor the temperature of the outer ring 22 of the drum 2 in real time, so that the control system can adjust the power of the electromagnetic heating device in real time to control the heating temperature of the outer ring 22 of the drum 2.

[0021] When it is necessary to simulate the temperature of tire 5 when driving on the road, tire 5 is first installed on the fixing device 3 at the second station. Then, the pushing device 4 pushes tire 5 towards the drum 2, so that tire 5 is pressed against the outer ring 22 of the drum 2. The electromagnetic heating device is controlled to heat the outer ring 22 of the drum 2. The temperature detection device monitors the temperature of the outer ring 22 of the drum 2 in real time. Then, the servo motor is used to control the drum 2 to rotate, so that the outer ring 22 of the drum 2 drives the tire 5 to rotate. By using the temperature of the outer ring 22 of the drum 2, the scenario of tire 5 moving on a high-temperature road surface is simulated, and the detection of various data of tire 5 is realized. The method of heating the outer ring 22 of the drum 2 by the electromagnetic heating device in this application greatly improves the heating efficiency of the outer ring 22 of the drum 2 and improves the detection efficiency of various data of tire 5. In addition, by monitoring the temperature of the outer ring 22 of the drum 2 in real time by the temperature detection device, the control system can change the input power of the electromagnetic heating device in a timely manner to achieve timely adjustment of the temperature of the outer ring 22 of the drum 2.

[0022] In one or more embodiments, the thickness of the outer ring 22 of the drum 2 is 1-10cm; by configuring a thinner outer ring 22 of the drum 2, the electromagnetic heating device can quickly heat the outer ring 22 of the drum 2, thereby improving the testing efficiency of the tire 5.

[0023] In one or more embodiments, the electromagnetic heating device is a heating coil disposed on the frame 1, with the heating coil directly opposite the outer ring 22 of the drum 2.

[0024] See Figure 2 The electromagnetic heating device is a ring-shaped heating coil. The ring-shaped heating coil can be adapted to the shape of the outer ring 22 of the drum 2, so that the electromagnetic heating device only heats the outer ring 22 of the drum 2. The method of heating the outer ring 22 of the drum 2 by means of electromagnetic induction through the heating coil has the characteristics of high heating efficiency and stable heating.

[0025] In the first embodiment of the temperature detection device, the temperature detection device is an infrared temperature sensor disposed on the frame 1. The infrared temperature sensor is disposed on the frame 1 and can detect the temperature of the outer ring 22 of the drum 2 in a timely manner and provide real-time feedback on the temperature of the outer ring 22 of the drum 2 to the control system that controls the electromagnetic heating device.

[0026] In a second embodiment of the temperature detection device, the temperature detection device comprises a thermocouple disposed within the outer ring 22 of the drum 2 and a conductive slip ring disposed on the inner ring 21 of the drum 2. The thermocouple and conductive slip ring are not shown in the attached figures. Monitoring the temperature of the outer ring 22 of the drum 2 using a thermocouple and conductive slip ring provides higher detection accuracy.

[0027] In one or more embodiments, the frame 1 is provided with an annular support 6 on the side facing the drum 2, and the electromagnetic heating device is provided on the annular support 6; the frame 1 is provided with a driving device 7 on the side facing the drum 2, the support 6 is connected to the driving device 7, and is driven by the driving device 7 to move closer to or away from the outer ring 22 of the drum 2.

[0028] See Figure 2 The driving device 7 can be a driving cylinder, which is mounted on the frame 1. The annular support 6 is positioned at the extended shaft end of the driving cylinder. By controlling the extension or retraction of the extended shaft end of the driving cylinder, the annular support 6 can be moved closer to or further away from the outer ring 22 of the rotating drum 2, thereby adjusting the distance between the electromagnetic heating device and the outer ring 22 of the rotating drum 2 to meet the usage requirements under different conditions. In other possible embodiments, the driving device 7 can be a lead screw module controlled by a motor, and there is no specific limitation.

[0029] In one or more embodiments, the outer ring 22 of the drum 2 is provided with a frosted layer. It should be noted that the frosted layer can increase the friction between the outer ring 22 of the drum 2 and the tire 5, ensuring that the outer ring 22 of the drum 2 can smoothly drive the tire 5 to rotate, thereby ensuring the accuracy of the tire 5 during simulated testing.

[0030] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. An electric heating device for a tire testing drum, characterized in that, include: A frame on which a rotating drum is rotatably mounted, the rotating drum comprising an inner ring and an outer ring that rotate synchronously, the inner ring being connected to the frame, and the outer ring being made of metal. An electromagnetic heating device is installed on the frame and directly opposite the outer ring of the drum for heating the outer ring of the drum; A temperature detection device is provided at least in the frame for detecting the temperature of the outer ring of the drum.

2. The tire testing drum electric heating device according to claim 1, characterized in that: The electromagnetic heating device is a heating coil mounted on the frame, with the heating coil facing the outer ring of the drum.

3. The tire testing drum electric heating device according to claim 1, characterized in that: The temperature detection device is an infrared temperature sensor configured on the frame.

4. The tire testing drum electric heating device according to claim 1, characterized in that: The temperature detection device consists of a thermocouple disposed within the outer ring of the drum and a conductive slip ring disposed on the inner ring of the drum.

5. The tire testing drum electric heating device according to claim 1, characterized in that: The frame is provided with an annular support on the side facing the drum, and the electromagnetic heating device is disposed on the annular support.

6. The tire testing drum electric heating device according to claim 5, characterized in that: The frame is equipped with a drive device on the side facing the drum. The bracket is connected to the drive device and is driven by the drive device to move closer to or away from the outer ring of the drum.

7. The tire testing drum electric heating device according to claim 6, characterized in that: The driving device is a drive cylinder or a lead screw module.

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