Linear Actuator

Abstract

The present invention provides a linear transmission device, which mainly adds at least one heat-conducting element in the infinite circulation path. The at least one heat-conducting element is made of a heat-conducting metal material. Therefore, when the rolling unit rolls on the infinite circulation path and touches the When the contact surface of the at least one heat-conducting member is used, the temperature change inside the mobile module can be transmitted to the thermal energy sensing unit, and then the thermal energy sensing unit sends a sensing signal to the management end to determine whether the linear actuator is abnormal , which is characterized by directly measuring the temperature change inside the mobile module, improving the lack of indirect measurement in the prior art, so as to reduce the occurrence of errors caused by inaccurate measurement signals, so that the linear transmission device has In case of abnormality, it can be detected in real time and accurately, so as to achieve the purpose of early warning and real-time monitoring.

Description

technical field [0001] The present invention relates to a linear transmission device, in particular to a linear transmission device with a heat-conducting member. Background technique [0002] like figure 1 As shown, it shows one of the diagrams of the Taiwan Patent (201040413) related to a transmission assembly with a temperature sensing device. The temperature sensing device is mainly composed of a power supply (not shown in the figure), a thermal sensor 10 and a warning device 11 Composition, after the thermal sensor 10 absorbs the heat energy of the transmission component, its resistance value drops, and the warning device 11 is turned on to send a signal to inform the user or activate the cooling device to cool the transmission component, so that the transmission component will not be caused by its own temperature. high, resulting in poor positioning accuracy, poor lubrication or reduced performance. [0003] However, in addition to the additional cooling device requi...

AI Technical Summary

Problems solved by technology

[0003] However, in addition to the above-mentioned transmission assembly requiring an additional cooling device, the transmission assembly is an indirect measurement. Therefore, it is impossible to accurately grasp the change of the internal temperature of the mobile module in measurement, resulting in the signal measured by the thermal sensor 10 It may be inaccurate, produce errors, and even cause long measurement time and poor measurement efficiency.

[0004] Please refer to US Patent No. US4939920A, which provides a mechanical temperature sensing device. When the temperature is higher than the set temperature, the mechanical action cuts off the power supply to protect the safety of the equipment. However, the above-mentioned device cannot In addition to use, the mechanical structure is too complicated, and it is also indirect conduction, so there will be situations such as poor conduction efficiency

[0005] In addition, please refer to the previous Japanese patent JP201725941A, which provides a linear motion guiding device, including: a spring component (refer to the component symbol 232 in the representative figure of JP201725941A) and a sensor for detecting the deformation or vibration of the spring component (Refer to the component symbol 233 in the representative drawing of JP201725941A) to detect the circulation state of the rolling elements with high precision, but this design is not perfect. In order to maintain the accuracy of detection, it must be measured beforehand and carried out afterwards Adjustment is extremely time-consuming and labor-intensive, and this structure cannot measure the internal temperature change in real time, which is prone to problems such as life reduction

Images