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新闻动态
牙科设备
牙科设备
Dental equipment
牙科椅
Dental chair
定义:主要供口腔手术及口腔疾病的检查和治疗用。目前多采用电动式牙科椅,其主要结构分8个部分(图1),整机籍底板固定于地面,并通过支架将底板与牙科椅的上部联接,牙科椅的动作受控于椅背上的控制开关,其工作原理是:控制开关启动电动机运转并带动传动机构工作,使牙科椅相应部件产生移动。根据治疗需要,操纵控制开关按扭,牙科椅可完成上升、下降、俯、仰体位和复位等动作
Definition: Mainly for oral surgery and the examination and treatment of oral diseases. At present, electric dental chair is mostly used. Its main structure is divided into eight parts (Fig. 1). The whole machine is fixed on the ground and connected with the upper part of the dental chair through a bracket. The movement of the dental chair is controlled by the control switch on the back of the chair. Its working principle is to control the switch to start the operation of the motor and drive the transmission mechanism. To make the corresponding parts of the dental chair move. According to the need of treatment, the dental chair can be lifted, lowered, bent, elevated position and reset by manipulating the control switch to press and twist.
2.涡轮机
2. Turbine
3.手机(非打电话用的手机。手机种类较多,根据转速和结构可分为高速手机和低速手机,高速手机利用高压空气驱动手机机头内的微型涡轮可涡轮转速达(3-5)×10r/min,车针的切削线速度可达15m/s,而低速手机由于是齿轮转动,转速仅为每分钟数千转。)
3. Mobile phones (non-mobile phones). There are many kinds of mobile phones, which can be divided into high-speed mobile phones and low-speed mobile phones according to their rotational speed and structure. High-speed mobile phones can use high-pressure air to drive micro-turbines in the head of mobile phones. The rotational speed of micro-turbines in the head of mobile phones can reach (3-5)*10r/min, and the cutting speed of needles can reach 15 m/s, while low-speed mobile phones can only rotate thousands of revolutions per minute because of gear rotation.

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