Motor temperature automatic compensation device for industrial robots
An industrial robot, automatic compensation technology, applied in temperature control, non-electric variable control, instruments, etc., can solve the problems of poor heat sink conductivity, unsatisfactory effect, and high viscosity of motor lubricating grease.
Active Publication Date: 2020-11-13
广东天机机器人有限公司
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Problems solved by technology
The main disadvantage of this heat dissipation method is that the heat sink has poor conductivity and low heat transfer efficiency; it can only be attached to the surface where the distance between the motor and the casting is small, and the other surfaces still dissipate heat through air convection and radiation, so the heat dissipation efficiency is low.
[0003] In addition, the highly sealed structure of the industrial robot also caused another problem. When the external environment temperature of the robot is relatively low, when the robot starts, due to the low temperature, the viscosity of the lubricating grease inside the motor is relatively high, making it difficult to start and easy to damaged motor
The traditional solution is to use lubricating grease with lower viscosity and preheat the motor before running. This method can reduce the loss of the motor to a certain extent, but the effect is not ideal. If the ambient temperature is low (usually below zero ) The heat dissipation is faster, and it is difficult for the motor to maintain a good working temperature
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[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0031] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as...
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The invention relates to an automatic motor temperature compensation device for an industrial robot, comprising:a thermal transmission assembly and a control component connecting the heat transfer component. The thermal transmission assembly includes: a cooling tube and a temperature sensor. The cooling tube is used to wrap around the motor of the industrial robot, and a circulating fluid for transferring heat flows through the cooling tube. A temperature sensor is used to be mounted on the motor to detect the temperature of the motor. The control assembly includes: a control unit, a liquid temperature processing unit, and a liquid circulation power unit. The liquid temperature processing unit includes: a heater and a refrigerator respectively connected to the cooling tube. The motor temperature automatic compensating device of the above industrial robot performs a real-time detection of the motor temperature of the industrial robot by using the temperature automatic compensation device, and according to the detected temperature value, the motor is cooled or heated to realize automatic compensation of the motor temperature, so that the motor has a normal temperature conditions fora standard operation of the motor.
Description
technical field [0001] The invention relates to the technical field of industrial robots, in particular to an automatic motor temperature compensation device of an industrial robot. Background technique [0002] In order to achieve a high level of protection, some industrial robots on the market generally choose to have the motor built in, that is, all the motors are built into the body of the industrial robot, and the body shell is sealed to play the role of dustproof and waterproof, which can achieve high protection level. However, due to the limited internal space of the body of the industrial robot and the lack of internal air circulation, it is difficult to dissipate heat from the motor. The traditional solution is to attach a heat sink to the motor, so that the heat from the motor is transferred to the robot body, and the heat is dissipated through the body casting. The main disadvantage of this heat dissipation method is that the heat sink has poor conductivity and ...
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IPC IPC(8): G05D23/20
CPCG05D23/20
Inventor 李叶鹏欧玉辉
Owner 广东天机机器人有限公司