How the hydraulic wrench works

Hydraulic torque wrench (hydraulic torque wrench) is a professional bolt tightening tool that is hydraulically powered and provides high torque output for bolt installation and disassembly. It is often used to tighten and loosen bolts larger than one inch. The maximum torque of the hydraulic torque wrench can reach 110000Nm, which not only improves the working efficiency, reduces the labor intensity, but also greatly improves the installation quality, and is also conducive to on-site safety management.

Hydraulic wrenches are used in a wide range of applications. In the construction, maintenance, repair and other work of ship engineering, petrochemical, construction, electric power, mining, metallurgy and other industries, hydraulic wrenches are a very important tool for the installation and disassembly of large-size bolts. Has the irreplaceability of other tools. Not only is it easy to use and light, but the torque provided is huge and accurate. The torque repeatability is about 3%. According to relevant statistics, about 50% of equipment failures are caused by bolt problems, and the number of major equipment accidents caused by bolt problems is also very alarming. Therefore, in the process of equipment installation, overhaul and gun repair, bolts are tight. The torque for solidification and disassembly is required to be strict in most cases, and it is difficult to meet the requirements by manual methods. For bolts that provide large gauge torque, hydraulic wrenches are an ideal choice.

The hydraulic torque wrench is composed of a working head, a hydraulic pump and a high pressure oil pipe. Through the high pressure oil pipe, the hydraulic pump transmits power to the working head to drive the tightening or loosening of the working head rotating nut. The hydraulic pump can be driven by electricity or compressed air.

The working head of the hydraulic wrench consists mainly of three parts, the frame (also called the housing), the cylinder and the transmission components. The output force of the cylinder, the piston rod of the cylinder and the transmission part form the movement pair. The distance from the center of the cylinder to the center of the transmission component is the hydraulic wrench. The output of the cylinder is multiplied by the force arm, which is the theoretical output torque of the hydraulic wrench. Due to the frictional resistance, the hydraulic wrench The actual output torque is less than the theoretical output torque.

The hydraulic wrench has two series of driven hydraulic torque wrench and hollow hydraulic wrench. The driven hydraulic torque wrench is used with a standard sleeve and is a universal hydraulic wrench for a wide range of applications. The hollow hydraulic wrench is thinner and is especially suitable for places where space is relatively small. Applicable to electric power (nuclear power, wind power, hydropower, thermal power), shipbuilding, metallurgy, transportation, cement, construction, aviation and other fields.

Hydraulic wrenches are the most important indicator of the size and weight of wrenches because they are often used in tight spaces and where transportation is very inconvenient. In order to reduce the size of the parts, it is a common method to use high-strength alloy materials and heat treatment.

For the purpose of reducing the size and weight of the parts by using high-strength alloy materials and heat treatment. Due to the current widening of global trade, it is not very difficult to find high-strength materials. However, in order to improve the strength, heat treatment and surface treatment must be adopted. For the desired strength of parts up to 1000 MPa and stable, and for materials The uniformity of strength is also extremely high (mainly due to the irregularity of the internal parts of the hydraulic square drive wrench). At present, it is difficult for domestic enterprises to achieve the strength of the internal parts of the hydraulic drive wrench up to 1000 MPa or more, even if it can be achieved individually. It is difficult to achieve batch stability. We also need to learn more from similar foreign products. In a long period of time, we will invest more manpower and capital, and explore and experiment in materials and heat treatment.

Concerned about surprises

Label: Hydraulic wrench

Previous: Introduction of electric drill type Next: Export power tool certification mark can not be ignored

Because of the Tantalum Plate strength and workability, very thin sheets of Tantalum can be clad to other surfaces, providing superior corrosion protection and cost effectiveness. Tantalum Sheet and plate are supplied with a cold-rolled and chemically cleaned surface. The tantalum sheet and plate may be locally conditioned to remove defects, provided that thickness tolerance is maintained. The tantalum sheet used for electronic Instrument Industry, Steel industry, Chemical industry , atomic energy industry, Aerospace aviation, Cemented carbide, Medical treatment. 

We can produce as clients's requirement.

Tantalum Plate

Tantalum Sheet,Tantanlum Target,Pure Tantalum Plate,High Purity Tantalum Plate

Baoji Shengyuan Metal Material Co., Ltd. , https://www.baojisymetal.com