Electric roller load test platform

Abstract

The utility model belongs to the field of roller testing, and discloses an electric roller load testing platform. Comprising a platform body, an electric roller and a torsion sensor are installed on the platform body, and the platform further comprises a control part electrically connected with the electric roller and the torsion sensor. The torsion sensor is used for detecting the torque of the electric roller and transmitting data to the control part, and the control part is electrically connected with the electric roller and adjusts the torque of the electric roller. The electric roller, the torsion sensor and the control part form a closed loop structure, the torque of the electric roller is adjusted at any time, the torque reaches a set value, the detected temperature rise is more accurate, and the qualified rate of the detected electric roller is higher.

Description

Technical Field

[0001] The utility model belongs to the field of drum testing, and particularly relates to an electric drum load testing platform. Background Art

[0002] In the field of electric drum testing, before the electric drum leaves the factory, it needs to undergo strict technical tests and can only be delivered to customers for use after passing. When testing the electric drum, rated temperature rise experiments and locked-rotor temperature rise experiments need to be carried out, so that the electric drum operates under rated current, rated torque, locked-rotor current, and locked-rotor torque. When the temperature rise of the electric drum reaches the standard requirements, it is considered qualified and meets the delivery conditions. The main factor restricting the performance parameters of the electric drum is the temperature rise. At room temperature, the temperature rise of a conventional electric drum should be within 100K, and the greater the torque, the greater the temperature rise. During the test process, the torque needs to be maintained at a preset higher value. Therefore, an excellent testing platform is the guarantee for the performance test of the electric drum.

[0003] In the prior art, it is necessary to manually adjust the torque before the test. During the test process, it is impossible to obtain whether the torque changes and it is also impossible to adjust the torque during the test. If the torque decreases during the test, it will lead to inaccurate test results. Summary of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides an electric drum load testing platform that can keep the torque at a preset value, improving the accuracy of the test results.

[0005] The technical solution adopted by the utility model to solve the above problems is: to provide an electric drum load testing platform, including a platform body, on which an electric drum and a torque sensor are installed, and further including a control unit electrically connected to the electric drum and the torque sensor; the torque sensor is used to detect the torque of the electric drum and transmit the data to the control unit, and the control unit is electrically connected to the electric drum to adjust the torque of the electric drum.

[0006] According to the utility model, further, a temperature acquisition module electrically connected to the control unit is included, which is used to acquire the temperature change of the electric drum during rotation and transmit the data to the control unit.

[0007] According to the utility model, further, the electric drum has a rotating shaft, one end of the rotating shaft is connected with a magnetic particle brake, and the magnetic particle brake is electrically connected to the control unit. The control unit transmits the received torque signal to the magnetic particle brake to realize the change of the torque of the electric drum through the magnetic particle brake.

[0008] According to the utility model, further, the control unit has a torque controller, a torque display and an HMI, which are used to display data and control the torque of the electric drum.

[0009] Compared with the prior art, the utility model has the following beneficial effects: the electric roller, the torque sensor and the control unit form a closed-loop structure. When the torque of the electric roller decays, the torque sensor feeds back the detected data to the control unit in real time, and the control unit adjusts the torque of the electric roller to ensure that the torque is at the set value, making the detected temperature rise more accurate, the qualified rate of the detected electric roller higher, and at the same time, the power of the electric roller can be better utilized by adjusting the torque of the electric roller at any time, reducing the generation of unqualified rotational torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic structural diagram of a load test platform for an electric roller of the utility model.

[0011] Wherein:

[0012] 100 - platform body, 110 - first loading station, 120 - second loading station, 200 - electric roller, 300 - torque sensor, 400 - control unit, 500 - magnetic particle brake. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The following further elaborates the utility model in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and not to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0014] As Figure 1 shown, the utility model provides a load test platform for an electric roller, which is used to complete the no-load test, load test, overload test, locked-rotor test, dynamic characteristic test and temperature rise test of the electric roller. It includes a platform body 100, the platform body 100 has a first loading station 110 for installing the electric roller 200, a second loading station 120 for installing the torque sensor 300, and a control unit 400 electrically connected to the electric roller 200 and the torque sensor 300. The control unit 400 has a torque controller, a torque display and an HMI. As Figure 1 shown in the figure, A1 is the HMI, A2 is the torque display, A3 is the torque controller. The control unit 400 can receive the signal of the torque sensor 300 and control the torque of the electric roller 200 through the signal. It should be noted here that the control unit 400 is prior art and will not be elaborated here.

[0015] Specifically, the torque sensor 300 is used to detect the torque of the electric roller 200 and transmit the signal to the control unit 400. The specific torque is displayed on the torque display of the control unit 400, and real-time data can be seen. When the torque data is less than the preset value, the torque controller of the control unit 400 adjusts the torque of the electric roller 200 to increase the torque of the electric roller 200 to the preset value. The electric roller 200, the torque sensor 300 and the control unit 400 form a closed-loop control, and the torque of the electric roller 200 can be adjusted at any time through the control unit 400 to make the torque of the electric roller 200 at the preset value. If the torque drops, it can also be adjusted at any time to improve the detection accuracy and make the qualified rate of the products passing the detection higher. Among them, the torque sensor adopts a PKT-BN digital dynamic torque sensor, and the rated torque is 5 Nm standard type; it is applicable to electric drum with torque ≤ 5 Nm.

[0016] In this embodiment, a magnetic powder brake 500 is connected to the rotating shaft of the electric roller 200. The magnetic powder brake 500 is electrically connected to the control unit 400. The controller 400 controls the rotation speed of the magnetic powder brake 500, and then adjusts the rotation speed of the electric roller 200 through the magnetic powder brake 500. The magnetic powder brake 500, as a braking device, transmits power and motion by means of the binding force between magnetic powders generated by electromagnetic attraction and the friction between magnetic powders and the working surface, and can control and adjust the torque, and is used to realize the functions of control braking, speed regulation, tension control, and test loading.

[0017] In this embodiment, a temperature acquisition module electrically connected to the control unit 400 is further included, which is used to acquire the temperature change of the electric roller 200 during the loading process and transmit the data to the control unit 400. The control unit 400 has a display screen, which can display the temperature data in real time and generate a temperature curve.

[0018] The acquisition method is as follows: set the rated speed and torque of the electric roller 200, run for 3 - 6 hours, and the temperature change data during this period is transmitted to the control unit 400 in real time until a stable temperature rise is formed, and the data is saved.

[0019] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A motorized roller load test platform, characterized in that: It includes a platform body, on which an electric roller and a torque sensor are installed, and a control unit electrically connected to the electric roller and the torque sensor; The torque sensor is used to detect the torque of the electric drum and transmit the data to the control unit; The electric drum has a rotating shaft, one end of which is connected to a magnetic powder brake, which is electrically connected to a control unit. The control unit transmits a received torque signal to the magnetic powder brake, and the torque change of the electric drum is achieved through the magnetic powder brake.

2. The electric roller load test platform according to claim 1, characterized in that: It also includes a temperature acquisition module electrically connected to the control unit, which is used to acquire the temperature change of the electric drum during the rotation process and transmit the data to the control unit.

3. The electric roller load test platform according to claim 1, characterized in that: The control unit has a torque controller, a torque display and an HMI, which are used to display data and control the torque of the electric drum.

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