Common types of wrenches are basically divided into two types. Dead and live spanners
The former refers to a wrench that already has a fixed number written on it and the latter is an adjustable wrench.
1. Wrench: One or both ends have a fixed size opening to twist a certain size nut or bolt.
2. Torx wrenches: The two ends have a working end with hexagonal holes or twelve corner holes, which is suitable for occasions where the working space is small and ordinary wrenches cannot be used.
3, dual-use wrenches: one end of the wrench with the same single head, the other end of the same with the wrenches, both ends of the same size bolts or nuts.
4, adjustable wrench: opening width can be adjusted within a certain size range, can turn different specifications of the bolt or nut. The structure of the wrench is characterized in that the fixed jaw is made into a flat jaw with a fine tooth; one end of the movable jaw is made into a flat jaw; the other end is made into a concave jaw with a fine tooth; and the worm is pressed downwards, moving The jaws can be quickly removed and the jaw positions replaced.
5, hook-shaped wrenches: also known as crescent-shaped wrench, used to twist the thickness of the flat nut and so on.
6, socket wrench: commonly known as the sleeve: it is composed of a number of hexagonal holes or twelve holes of the sleeve and is equipped with a variety of accessories such as handles, posts, etc., especially suitable for screwing position is very small or Sink deep in bolts or nuts. Sleeve has metric and imperial distinctions. Although the sleeve has the same concave shape, the outside diameter, length and length are designed according to the shape and size of the corresponding equipment. The country does not have uniform regulations, so the sleeve design is relatively flexible. Meet the needs of the public. The socket wrench is usually attached with a set of various specifications of the socket head and pendulum handle, post, universal joint, screwdriver joint, elbow handle, etc. to fit into the hex nut. The sleeve head of the socket wrench is a concave hexagonal cylinder; the wrench is usually made of carbon structural steel or alloy structural steel, the wrench head has a specified hardness, and the middle and handle portions are elastic.
7. Hexagon Allen wrench: L-shaped hexagonal bar wrench is used to turn the Allen screw. The type of Allen wrench is based on the size of the side of the hexagon. The size of the bolt has national standards.
Uses: ** Fasten or remove the round nuts on machine tools, vehicles, and machinery.
8. Torque wrench: It shows the applied torque when the bolt or nut is twisted, or it emits light or sound signal when the applied torque reaches the specified value. Torque wrenches are suitable for assemblies that clearly specify the size of the torque.
What about the AC Cooling Fan? Where are they to use?
Let's keep understanding
AC motor is used to achieve the exchange of mechanical energy and AC power of machinery.
Due to the tremendous development of AC power systems, AC motors have become the most commonly used motors.
Compared with the direct current motor, the alternating current motor does not have a commutator (see commutation of the direct current motor), so the structure is simple, the manufacture is convenient, the structure is firm and the motor with high speed, high voltage, high current and large capacity can be easily made. AC motor power range, ranging from a few watts to several hundred thousand kilowatts, or even millions of kilowatts. In the early 1980s, the largest turbine generator reached 1.5 million kilowatts. The AC motor was invented by a Serbian American scientist Nikola Tesla
AC, referred to as AC. also known as "alternating current", referred to as "exchange." Generally refers to the size and direction of the cyclical changes over time voltage or current. Its most basic form is a sinusoidal current.Hippolyte Pixii created the first AC motor based on the principle of Michael Faraday by Michael Faraday in 1832
Ac Cooling Fan side table
side
voltage
bearing
line materials
current
weight(g)
remark
6030
110V/220V
sleeve/ball
QA
normal
145
8025
110V/221V
sleeve/ball
QA
normal
240
8038
110V/222V
sleeve/ball
QA
normal
290
9225
110V/223V
sleeve/ball
QA
normal
280
9238
110V/224V
sleeve/ball
QA
normal
340
11025
110V/225V
sleeve/ball
QA
normal
300
12025
110V/226V
sleeve/ball
QA
normal
320
12038
110V/227V
sleeve/ball
QA/CCA
normal
530
CCA old-ball
13538
110V/228V
sleeve/ball
QA
normal
570
15050
110V/220V/380V
sleeve/ball
QA/CCA
normal
800
17238
110V/220V/381V
sleeve/ball
QA
normal
760
17251
110V/220V/382V
sleeve/ball
QA/CCA
normal
800
17255
110V/220V/383V
sleeve/ball
QA
normal
850
18060
110V/220V/384V
sleeve/ball
QA/CCA
normal
950
20060
110V/220V/385V
sleeve/ball
QA/CCA
normal
1540
22060
110V/220V/386V
sleeve/ball
QA/CCA
normal
1540
22580
110V/220V/387V
sleeve/ball
QA
normal
2140
25489
110V/220V/388V
sleeve/ball
QA
normal
1900
30030
110V/220V/389V
sleeve/ball
QA
normal
2900
DY-2
110V/228V
sleeve/ball
QA
normal
1000
As shown 12038 AC Cooling fan
It can be used for ventilating or enhancing the heat dissipation in metallurgy, chemical industry, light industry, foodstuff, medical equipment, machinery equipment and civil buildings, etc. If the case is removed, it can also be used as a free fan, The pipes are installed in series in order to increase the pressure in the pipes.
Axial fan features:
Small axial fans: low power consumption, fast cooling, low noise, energy saving and environmental protection. Because of its small size and more extensive use.
Ac Fan,Ac Mini Alloy Fan,Ac Induction Motor Fan,High Efficiency Ac Fan
Shenzhen Fu Sheng Electric Co., LTD. , http://www.fushengfan.com