Symmetrical turnout product details

Symmetrical turnout is a type of China's coal mine narrow railway turnout, which is the basic equipment of railway line connecting the narrow track. It is very important for the design, construction and production of coal mine and other mines. Mine railway turnout is convenient and rapid, with strict manufacturing, acceptance criteria, the rail type, angle gauge, switch series, suitable for the use of coal industry in China is changing.

Symmetrical switch product composition

Turnout is a big family, the most common is the common single turnout. It consists of a switch, a connecting part, frog three units. The switch includes basic rail, rail and switch machine. When the vehicle from the A track to track B, control switch machine to rail mobile location, rail 1 close basic rail 1, 2 points from the basic rail 2, and this opened the B track, off track A, vehicle into the connecting part along the guide rail curve transition to the frog and rail unit. This unit includes a fixed frog heart, the role is to protect the wheels safely through the intersection of two shares of the trajectory.

Experience sharing of symmetrical turnout

You may have found that the wheels in the frog, from two wing rail at the narrowest and there is a gap between the tip of the frog heart, this is harmful space switch. Through the wheel here, probably due to the wrong slot frog caused derailment. This is also the purpose of setting the guardrail, it will guide the direction of running wheel. In spite of this, the existence of harmful space limits the speed of the train passing through the turnout, which is bad for the high-speed train. The fundamental way to solve the harmful space is to eliminate harmful space. Since the ordinary switch can not be done, it is necessary to develop a special switch. The characteristics of the movable point rail is the main rail frog can move in. When we opened the direction of a track, frog and the opening of the movable point rail direction of wing rail close, separated with another wing rail so that the general turnout of hazardous space would not exist. Practice has proved that the elimination of harmful space switch, driving more stable, the speed limit is too small, so it is particularly suitable for large volume, the need to use high-speed train line. Since there is a single switch, there are three double turnout, turnout, turnout (double cross points). Turnout has its own code, such as the 9 turnout, turnout No. 12, No. 18 turnout, etc.. This code can not easily arranged, it actually represents the crossing angle (alpha) cotangent value, which is part of the frog heart right triangle two right angle side of FE and the ratio of AE, N=cot a =FE/AE, N is the turnout no.. Obviously, the frog angle is small, the N value is greater, the guide curve radius is larger, the train line through the turnout is more stable, allowing the turnout through speed is also higher. Therefore, the use of large turnout for the train is beneficial. However, things have its two sides, the greater the number of turnout, turnout is long, the cost is high, covers an area of much more. Therefore, what the number switch to local conditions, because the line varies, but can not say.

Fault and treatment method of symmetrical switch

1, to understand the situation of the switch fault first asked the station attendant fault phenomenon, and then control the switch on the console test.

2, the registration of the switch is disabled.

3, the judge is the indoor or outdoor turnout is a single action switch, in the operation of the console when there is an indication of the ammeter, indicating that the operation of the switch has been sent to the switch. If the switch can not be placed at the specified location, is the outdoor reasons. In the operating switch, if the current console table does not indicate, the first outdoor noseplate to measure the mechanical room there is no switch voltage, if the voltage of the power switch action that is outside the fault has been extended. If it is a double action switch, in the operation of the console when the current meter does not move, indicating that the operation of the switch has been sent to the electric switch, fault after a switch, is an outdoor fault. If the switch is fixed and reversed, it is not indicated. Using a multimeter to exchange 250V files, in the noseplate measurement of X1 (or X2) and X3 are about 110V AC voltage, if the voltage is outdoor, fault, otherwise it is interior fault.

The products have been exported to the United States, France, Canada, Indonesia, Russia, Vietnam, Australia, South Korea, Iran and other countries, to obtain customer acclaim.