Common wrench type
Wrenches are basically divided into two types, dead wrenches and live wrenches
The former refers to the fixed number has been written on the wrench, the latter is the wrench.
1. wrench: one or both ends of the fixed size of the opening, used to twist a certain size of the nut or bolt.
2. Plum wrenches: both ends with a hexagonal hole or twelve hole hole of the working end, suitable for small work space, can not use ordinary wrench occasions.
3. Dual wrench: one end with the same single wrench, the other end with the same wrench, both ends twist the same specifications of the bolt or nut.
4. Wrench: The width of the opening can be adjusted within a certain size range, can be screwed to different specifications of the bolt or nut.
5. Hook wrench: also known as crescent-shaped wrench, used to twist the thickness of the restricted flat nuts and so on.
6. Socket wrench: It is composed of a number of hexagonal holes or twelve holes in the sleeve and with a handle, connecting rod and other accessories, especially for twisting position is very A small bolt or nut that is deep or recessed.
7. Allen wrench: into the L-shaped hexagonal rod wrench, dedicated to twist the hexagonal screws. Hexagon wrench models are in accordance with the hexagonal side of the size of the said, The size of the bolt has a national standard.
Uses: designed for fastening or dismantling machine tools, vehicles, machinery and equipment on the use of round nut.
8. Torque wrench: it can show the applied torque when screwing the screw or nut; or when the applied torque reaches the specified value, it will emit light or sound signal. Torque wrenches are suitable for applications that have expressly defined the size of the torque.
9. Wrench: the wrench is characterized by a fixed jaw made with a fine teeth of the flat clamp concave; movable jaws made at one end of the flat jaw; the other end made with a fine teeth Concave jaw; press down the worm, the activities of the jaws can be quickly removed, change the jaw position.
Manual wrench
Manual wrench, also known as ordinary wrench, mainly used in ordinary life and work, its use is relatively simple, mainly divided into single-headed wrench, double-headed wrench, live Wrenches, wrenches, wrenches, knock wrenches, socket wrenches, sleeve screwdrivers, torque wrenches, torque wrenches, cross wrenches, ratchet wrenches, hooks Wrench, wrench, wrench, T wrench, wrench, trench wrench, trench wrench Barrel wrench, tire wrench, spark plug wrench, filter wrench, combination wrench, other wrenches and so on. Torque wrench is divided into hearing wrench, pointer wrench, digital display wrench.
Use the manual wrench
1. Select the appropriate wrench according to the characteristics of the fastened fastener. 2. tighten, with the handle of the end of the handle, clockwise force tightened; loose, counterclockwise Direction spin.
Manual wrench features
Simple operation, low price, labor intensity
Open wrench
The use of open wrench and technical characteristics
Screw is the main fastener in mechanical equipment, open wrench is the machinery industry processing, production and maintenance of an important tool, the project is a traditional wrench tool The revolution, it has the following advantages.
1. Can work fast, work faster than the traditional wrench three to four times faster than the current fast wrench work faster.
2. An open wrench can be applied to 2-6 kinds of specifications of the screw, and a double-headed dancer only applies two kinds of screws,
An open wrench is equivalent to 2-3 dull hand, the equivalent of a moving wrench but no need to adjust the opening can work quickly.
3. Long life, bad, and the former fast wrench easily bad.
4. Manufacturing process is simple, the cost is even lower than the dull hand.
5. Light weight, easy to carry, work effort.
