定扭矩電動扳手也叫可調扭矩電動扳手，是電動扳手的一種，其主要特點是扭矩可以設定，而扭矩是可調的。主要用于鋼結構安裝行業，專門安裝鋼結構高強度螺栓，高強度螺栓是用來連接鋼結構觸點的，通常采用螺栓的形式。
Fixed torque electric wrench, also known as adjustable torque electric wrench, is a kind of electric wrench. Its main feature is that the torque can be set and the torque is adjustable. It is mainly used in the steel structure installation industry to install high-strength bolts of steel structure. High-strength bolts are used to connect steel structure contacts, usually in the form of bolts.
定扭矩電動扳手的優缺點
Advantages and disadvantages of fixed torque electric wrench
一般來說，高強度螺栓在擰緊之前須擰緊，每個階段都要求有嚴格的扭矩要求。本實用新型涉及一種定扭矩電動扳手，適用于高密度大六角頭高強度螺栓的端部。
Generally speaking, high-strength bolts must be tightened before tightening, and strict torque requirements are required at each stage. The utility model relates to a fixed torque electric wrench, which is applicable to the end of high density large hexagon head high strength bolts.
目前對定扭矩電動扳手的研究多集中在兼具定值和過載故障功能的數字式顯式定扭矩電動扳手，并通過LCD顯示窗口的人性化設計受到用戶的歡迎。此外，還有扭矩值監控終端、峰值設定和報警功能、無線傳輸功能、與已安裝的無線傳輸終端通信、數據記錄和管理。
At present, the research of constant torque electric wrench is mostly focused on the digital explicit constant torque electric wrench with both constant value and overload fault functions, and it is welcomed by users through the humanized design of LCD display window. In addition, there are torque value monitoring terminal, peak setting and alarm function, wireless transmission function, communication with installed wireless transmission terminal, data recording and management.
從傳統的手指扭矩扳手到各種社會功能的數字式顯式固定扭矩電動扳手，隨著信息技術的發展可以實現了質的飛躍。現有的定扭矩電動扳手具有以下幾個優點:①技術不斷成熟，性能比較穩定;（2）人性化管理操作系統界面;強大的數據分析處理主要功能等。
From the traditional finger torque wrench to the digital explicit fixed torque electric wrench with various social functions, with the development of information technology, a qualitative leap can be achieved. The existing fixed torque electric wrench has the following advantages: ① the technology is constantly mature and the performance is relatively stable; (2) Humanized management operating system interface; Powerful data analysis and processing main functions.
固定扭矩電動扳手缺點:系統進行組件多任務復雜性文獻中提出了作為一種人工智能扭力扳手系統，包括企業電子標簽、扭力扳手、信息資源管理會計軟件等，通過建立一系列發展智能手機芯片來完成一個必要的功能。使用扳手系統時，須能夠同時啟動計算機并對螺栓信息編號，創建網絡信息記錄學生管理分析軟件，并在相應的螺栓上粘貼電子標簽。力矩扳手的功能需要在教學準備教育工作任務完成后我們才能充分發揮，效率低，操作過程復雜。類似的扭力扳手結構比較復雜。準確性和困難目前，市場上的定扭矩電動扳手在精度和上都是難題。高精度扳手一般是數字式定扭矩電動扳手，進口產品，水平一般來說較高。低的是扭力針扳手結構相對簡單，精度低，難以滿足人們使用不同要求。這也是扭矩扳手在相關知識領域方面沒有能力得到廣泛應用的原因之一。
Disadvantages of fixed torque electric wrench: the system carries out the multi-task complexity of components, which is proposed in the literature as an artificial intelligent torque wrench system, including enterprise electronic label, torque wrench, information resource management accounting software, etc., and completes a necessary function by establishing a series of smart phone chips. When using the wrench system, you must be able to start the computer and number the bolt information at the same time, create the network information security record student management analysis software, and paste the electronic label on the corresponding bolt. The function of torque wrench needs to be fully played after the teaching preparation and education tasks are completed. It is inefficient and the operation process is complex. Similar torque wrenches have complex structures. Accuracy and price difficulties At present, the precision and price of the fixed torque electric wrench on the market are difficult. High-precision wrenches are generally digital fixed-torque electric wrenches, which are imported products, and the price level is generally high. The low price is that the torque pin wrench has relatively simple structure and low precision, which is difficult to meet the different requirements of people. This is also one of the reasons why torque wrench is not able to be widely used in relevant knowledge fields.
智力低下。現有的固定扭矩電動扳手具有應用扭矩值和監測扭矩值的能力，但需要手動設置多少扭矩值才能適用于不同規格的螺栓。不同螺栓的預緊力矩值可參照有關手冊或公式計算。目前，只有一些特殊行業的產品有預壓螺栓的信息。普通螺栓預緊力的具體值是根據經驗確定的，這是阻礙使用定扭矩電動扳手的原因之一。
Mental retardation. The existing fixed torque electric wrench has the ability to apply torque value and monitor torque value, but how many torque values need to be manually set to apply to bolts of different specifications. The pre-tightening torque of different bolts can be calculated by referring to relevant manuals or formulas. At present, only some products of special industries have the information of preloaded bolts. The specific value of pre-tightening force of ordinary bolts is determined based on experience, which is one of the reasons preventing the use of fixed torque electric wrench.
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