Torque wrench, also known as torque wrench, is a kind of wrench, which is usually divided into electric torque wrench and manual torque wrench. Torque is the product of force and distance. When tightening screws, bolts, nuts and other fasteners, it is necessary to control the applied torque to ensure that the thread will not be damaged due to excessive torque. Therefore, use a torque wrench to operate. So what are the specific specifications and models of torque wrench?

扭力扳手規(guī)格型號

Specification and model of torque wrench

扭力扳手的型號一般是按照它的扭力范圍來定的，比如WEC4-340AN:表示大扭力值是。340N。m。方榫尺寸是一樣的，有1/4"、3/8"、1/2"、3/4"等，還有分數(shù)顯的和機械式。扭力扳手規(guī)格量程一般是1-5N，5-25N，10-50N，20-100N，40-200N，70-350N。扭力扳手有很多的，不同的扭力扳手，其規(guī)格型號也是有所不同的。

The model of torque wrench is generally determined according to its torque range. For example, wec4-340an: indicates that the large torque value is. 340N。 m。 The size of square tenon is the same, including 1 / 4 ", 3 / 8", 1 / 2 ", 3 / 4", etc., as well as fractional and mechanical. The specification range of torque wrench is generally 1-5n, 5-25n, 10-50n, 20-100n, 40-200n and 70-350n. There are many brands of torque wrenches. The specifications and models of torque wrenches of different brands are also different.

扭力扳手的分類:

Classification of torque wrenches:

根據(jù)扭力儀器的顯示方式和工作原理，扭力儀器共分為三大類:

According to the display mode and working principle of torque instruments, torque instruments are divided into three categories:

1、扭力表

1. Torque meter

依據(jù)力的反作用性，通過外部對其測力點施加扭矩，帶動儀器內(nèi)部已經(jīng)施加了一定負荷的杠桿機構(gòu)，傳動機械齒輪使表盤上的指針在外部施加的力的作用下進行有規(guī)律的轉(zhuǎn)動，從而顯示出現(xiàn)有的扭矩值

According to the reaction of the force, the external torque is applied to the force measuring point to drive the lever mechanism with a certain load inside the instrument, and drive the mechanical gear to make the pointer on the dial rotate regularly under the action of the external force, so as to display the existing torque value

2、扭力批

2. Torque screwdriver

扭力批也稱扭力起子。根據(jù)力的特性，采用負向施加力的動作，當(dāng)外部施加的扭力達到一個已經(jīng)設(shè)置好的數(shù)值且等於內(nèi)部設(shè)定力值時，內(nèi)部跳檔機構(gòu)動作，并且能聽到啼嗒的聲響時，表示已達到預(yù)設(shè)值。

Torque screwdriver is also called torque screwdriver. According to the characteristics of the force, the action of applying force in the negative direction is adopted. When the externally applied torque reaches a set value and is equal to the internal set force value, the internal skip mechanism acts and the sound of clicking can be heard, indicating that the preset value has been reached.

3、扭力扳手

3. Torque wrench

也稱扭力扳子，原理與扭力批近似。采用杠桿原理與跳檔機構(gòu)并用，當(dāng)外部施加的扭矩大於內(nèi)部設(shè)定的力值時，內(nèi)部跳檔機構(gòu)動作且卸力，表示已經(jīng)達到預(yù)設(shè)的力值，同時可以聽到由跳檔產(chǎn)生的聲響。

Also known as torque wrench, its principle is similar to that of torque batch. The lever principle is used in combination with the skip mechanism. When the externally applied torque is greater than the internally set force value, the internal skip mechanism acts and releases the force, indicating that the preset force value has been reached, and the sound generated by the skip can be heard at the same time.

扭力扳手的使用方法

Usage of torque wrench

1、扭力扳手使用時，當(dāng)聽到“啪”的一聲時，此時是合適的。

1. When the torque wrench is used, it is appropriate to hear a "snap" sound.

2、在扭力扳手的使用中，要根據(jù)測量部品的要求選取適中量程，所測扭力值不可小於扭力器在使用中量程的百分之二十，太大的量程不宜用於小扭力部品的加固，小量程的扭力器更不可以超量程使用

2. In the use of torque wrench, first select a moderate range according to the requirements of measuring parts. The measured torque value shall not be less than 20% of the range of the torque device in use. Too large range shall not be used for the reinforcement of small torque parts, and the torque device with small range shall not be used beyond the range

3、在使用扭力扳手時，先將受力棘爪連接好輔助配件(如套筒，各類批嘴)，確保連接已經(jīng)沒問題。在加固扭力之前，設(shè)定好需要加固的力值，并鎖好緊鎖裝置，然后調(diào)整好方向轉(zhuǎn)換鈕到加力的方向。

3. When using a torque wrench, first connect the stressed pawl with auxiliary accessories (such as sleeve and various nozzles) to ensure that there is no problem with the connection. Before tightening the torsional force, set the force that needs to be reinforced, lock the locking device, and adjust the direction switch button to the direction of the additional force.

扭力扳手規(guī)格型號的相關(guān)內(nèi)容就為大家介紹到這里了，扭力扳手扳手其實就是用來緊固螺栓的，因而扭力扳手在許多行業(yè)都有應(yīng)用，而我們經(jīng)常會在汽車維修的時候見到這個工具，有了這個工具維修人員的工作效率就得到了提高。

The specification and model of torque wrench are introduced here. Torque wrench is actually used to fasten bolts. Therefore, torque wrench is used in many industries, and we often see this tool during automobile maintenance. With this tool, the work efficiency of maintenance personnel is improved.