With the advancement of technology and the rapid development of the industry, the use and requirements of torque wrenches are becoming more and more common and precise, and from traditional torque wrenches, gradually set ratchet torque wrenches, digital torque wrenches And preset torque wrenches, etc. Although their categories are different, their principles are roughly the same. Next, let's talk about the principle of torque wrenches.  Torque wrench principle  The principle of the torque wrench's kata sound is very simple. After the torque wrench emits the "cata" sound, it indicates that the torque value you have reached has been reached; the "cata" issued by the torque wrench is generated by the internal torque release structure. The structure is divided into three structures: pressure spring, torque release joint, and torque jack. First set the required torque value on the torque wrench (the spring is placed on the jack to apply pressure to the torque release joint), lock the torque wrench, and start tightening the bolts. When the bolt reaches the torque value (when the torsion force is greater than the pressure of the spring), there will be an instantaneous disconnection effect. At the moment when the disconnection effect occurs, the joint hits, and the "cata" sound emitted by the metal shell of the wrench. This confirms the reminder effect of reaching the torque value (in fact, it is like the principle that our arm joints are bent at 15 degrees and placed in the iron pipe and will encounter the steel pipe after being straightened).  Main points of using torque wrench  1. According to the required constant force value, select the corresponding fixed torque wrench that has passed the verification, and it is not allowed to use the fixed torque wrench that has not been verified; 2. The wrench should be twisted with balanced and slow force, and cannot be twisted sharply. Hold the middle point of the handle of the constant torque wrench and pull the handle perpendicular to the center line of the wrench until the required torque is reached. It is not allowed to hold the root and endpoint at will ; 3. Do not apply torque greater than the rated value of the fixed torque wrench. Do not use the fixed torque wrench to remove the bolts or nuts. The fixed torque wrench can only rotate clockwise; 4. When tightening the bolt with a fixed torque wrench, the adapter should not be used as much as possible. When it is necessary, the following requirements must be observed: When the adapter has various shapes, it can be reasonably selected; to reduce the error of the tightening torque, turn The length of the connector should be less than the length of the fixed torque wrench; when connecting the adapter, the center line should be in line with the center line of the wrench. If necessary, the adapter with offset axis can also be used, but the maximum angle is not more than 15 °. 5. It is not allowed to use the fixed torque wrench as an ordinary wrench, such as loosening nuts or bolts; 6. The right torque fixed torque wrench cannot rotate left, and the left torque fixed torque wrench cannot rotate right; 7. The chrome-plated fixed torque wrench and adapter wrench cannot be used to contact titanium or alloy bolts or product structures; 8. The torque applied by the constant torque wrench is not allowed to exceed the rated torque value of the constant torque wrench. The principle of torque wrench and the main points of its use are introduced here. When you use a large-sized torque wrench, you can add a long sleeve to save effort. If you do n’t use it for a long time, you should return the adjustment scale to the torque. At the minimum value. This column mainly shows the excavator Control Valve parts. We provide Hydraulic Main Control Valve for Kawasaki, Kayaba, Parker, Rexroth, Komatsu, Commercial, Vickers, etc. We provide low priced Excavator Control Valve from China.
If you want to know more about our products in more detail, please click on the product details to see more information about product quality, price, packaging, transportation, etc., or you can directly click on Contact Now on the page to talk to us directly. Looking forward to starting long-term business cooperation with you!
Main Control Valve,Automatic Control Valve,Excavator Control Valve,Excavator Pilot Control Valve Jining Juheng Hydraulic Machinery Co., Ltd. , https://www.juheng-cn.com
We are a professional manufacturer of hydraulic accessories for crawler excavators Professionally provided aftermarket customers with various brands of crawler Excavator Final Drive, Travel Motor , Travel Gearbox, Swing Device , Swing Motor ,Swing Gearbox,hydraulic pump, main control valve and other accessories.Strictly controlling the quality acceptance of each product Standards to ensure high-quality qualified export of each product.At the same time, we can customize the production services of the products through the drawings according to customer needs, and make every effort to make the perfect product in the mind of each customer.
Introduction to the principle and main points of torque wrench