Introduction of single turnout
A turnout is a basic setting for branching a track into two or more tracks to enable locomotives to change from one line to another. The turnout number is expressed by a frog number. The intersection angle between the working sides of the fork center is called a frog angle, and the cotangent value of the frog angle is called a frog number.
Commonly used turnouts are divided into single turnouts, symmetrical turnouts, double intersection turnouts and intersection lines. The most commonly used single turnouts in China are straight lines, and the side lines turn left or right from the main lines. They are also called left turnouts and right turnouts, and their numbers account for more than 90% of the total number of turnouts.
Features of single turnout
Single turnout is one of the common railway accessories. One type of movable turnout single turnout refers to the fact that the individual components of the frog can move. How to prove the continuity of the rail line when the train is too poor, eliminating the fixed turnout of the single turnout There is harmful space on the rails, and the guard rails can be eliminated. At the same time, the smoothness of the single turnout frog in the longitudinal section can also be greatly reduced, thereby significantly reducing the wheel-rail interaction of the single turnout frog, and improving the operation and Stability, extend the life of the frog. Long-term operation practice shows that the service life of the movable rail frog is 6 to 9 times that of the same type of high-manganese steel complete cast frog, and the maintenance and repair workload is reduced by 40%, which greatly reduces the impact force when rolling stock passes. The permissible speed and operating comfort of a single turnout are obtained.
Introduction to symmetrical turnouts
Symmetric turnout is a type of narrow-gauge railway turnout in China's coal mines and is the basic equipment for narrow-track railway line connection. Standardization and serialization of symmetrical turnouts are also very important for the design, construction and production of coal mines or other mines. The symmetrical turnout is composed of three units: a switch, a connecting part, a switch and a guard rail. The switch includes basic rail, sharp rail and switch machinery.
Characteristics of symmetrical turnouts
When the locomotive is about to switch from the A-share track to the B-share track, the switch mechanism is operated to move the sharp rail. The sharp rail 1 is closely attached to the basic rail 1, and the sharp rail 2 is separated from the basic rail 2. The A-share track was closed, and the rolling stock entered the connection section and transitioned along the guide rail to the frog and rail unit. This unit includes a fixed frog core, wing rails, and guard rails, which protect the wheels from crossing the two rails safely.
When the wheel passes the frog, there is a gap between the narrowest point of the two wing rails and the tip of the frog center. This is the harmful space of the turnout. When the wheels pass here, it may cause derailment due to the wrong fork groove. The purpose of setting the guard rail is also here, it is to forcibly guide the running direction of the wheels. Nevertheless, the existence of this harmful space limits the speed of trains passing through turnouts, which is very disadvantageous for high-speed trains.
Introduction to Ferry Turnout
Crossover turnout is a special railway turnout used in China's coal system, and it is the basic equipment for narrow track railway line connection. Alias: Narrow gauge crossing turnout, mining crossing turnout.
Products include: various types of light rail turnouts, heavy rail high manganese steel cast single turnouts, double crossing turnouts, crossover turnouts, diamond turnouts, symmetrical turnouts and other turnouts.
Classification of crossingsDifferentiated by rail type:
8kg / m, 12kg / m, 15kg / m, 18kg / m, 22kg / m, 24kg / m, 30kg / m, 38kg / m, 43kg / m, 50kg / m, 60kg / m rail turnouts.
According to the turnout number:
Turnouts 2, 3, 4, 5, 6, 7, 8, 8, 9 and 12
There are various types of driving accessories such as pressure plates, bolts, rubber pads, and welding rail clamps.
Introduction of hydraulic road crane
The structure of the hydraulic track lifter: The hydraulic track lifter is composed of a manual double plunger pump, a fuel tank, an overflow valve, a lift lever, a bottom plate and other main components.
Features of hydraulic road crane: The machine is equipped with an overflow valve in the oil tank, and the system working pressure is 72mpa, which is conducive to the use of a smaller cylinder diameter and achieves the requirements of small size and light weight. When the oil pressure exceeds 72mpa, the relief valve is automatically unloaded to provide overload protection.
Purpose of hydraulic road hoisting machine: Hydraulic road hoisting machine is a special equipment for hoisting and laneway of railway line large, medium repair and track bed maintenance. Lifting can adjust the level of the track. It has the characteristics of high work efficiency, simple operation, light weight, light physical labor, safety and reliability, and wide application range.
|Airway force||Lifting cylinder stroke||Maximum channeling force||Maximum dialing volume||Working pressure||power||weight|
|Single cylinder 150KN, double cylinder 150KNx2||800mm ± 5mm||200KN||150mm||20MPa||9.5KW||410KG|
KDJ Electric Rail Saw Machine Product Introduction
KDJ electric rail sawing machine is used for sawing operation of steel rails of 50kg / m and below in coal mines, ports and mines. Electric rail sawing machine has the advantages of high working efficiency, easy operation, and reducing labor intensity of electric rail sawing machine. The main axis has a large displacement angle, and the utilization rate of the electric wheel saw blade is over 90%, which is convenient for clamping, fast cutting speed, and no burn on the sawing surface. The gasoline engine is used as the power source, which is suitable for an environment without a power source, and can be implemented on the ground and on rails.
(1) Motor: power: 3.0 kW (4.0) voltage: 380 volts, spindle speed 3000 rpm
(2) Sawing discs: Φ400 × Φ25 × 4
(3) Cutting range: 24-43-75 kg / m
(4) Cut perpendicularity: less than 0.5 mm
(5) Utilization rate of grinding wheel: 43-track use 6-7 times 50-track 5-6 times 75-track 4-5 times
(6) Overall dimensions: 680 × 430 × 580
(7) Machine weight: 65 kg (3.0) and 75 kg (4.0)
Product Features of Rail Drilling Machine
1. Special tools for railway rail drilling. This machine has a wide range of applications and can be used in line and building construction and large and medium maintenance operations. The machine is light in weight and small in size and is a portable machine. The card is firmly installed during operation, the installation is accurate, and the detachment is rapid, which can effectively ensure the safety of driving.
2. High-speed alloy steel hollow drill, short drilling time, high precision and long service life.
3. The machine adopts the cooling structure inside the main shaft and is equipped with a high-pressure cooling pot.
4. Suitable for drilling of various steel rails of 30 to 75 kg / m.
Rail drilling machine technical parameters
|gasoline engine||Drilling diameter||Rated speed||Drilling accuracy||Drilling time||size||weight|
|1.47kw (2ps), G4L two-stroke gasoline engine||32 ± 0.2mm||280r / min||Tolerance <1mm||≤40s||495x320x400mm||20KG|
Hydraulic bender product introduction
Hydraulic bender is also called hydraulic bender. It is a special tool for bending the steel rail during railway installation and maintenance. This machine is specially used to bend or adjust the light-weight steel rail of 24kg / m or less in the vertical direction at the track laying site when the railway line of the inclined shaft of the mine encounters changes in the horizontal elevation of the tunnel.
Technical parameters of hydraulic bender
|Maximum bending moment||Hydraulic bender-piston stroke||Hydraulic bender-cylinder diameter||quality|
As a small hydraulic tool, the hydraulic hole squeezer mainly realizes the drilling, punching, and squeezing of railway rails. Product features: Hydraulic hole squeezer is easy to carry, simple to operate, wear-resistant, and has a long service life. Working principle of hydraulic hole squeezer: Hydraulic rail hole squeezer is carefully designed and manufactured using lever principle, hydraulic transmission and shearing principle. The hydraulic hole squeezer has a very fast drilling speed. Under normal circumstances, a hole can be punched in one minute. The drilling speed of ordinary rock drills cannot reach this level.
|model||Applicable rail type (KG / M)||Maximum punching diameter (MM)||Maximum punching thickness (MM)||Punching force (T)|
| KKY-1050 |
Hydraulic punching machine
| KKY-500 |
Hydraulic punching machine
| KKY-300 |
Hydraulic punching machine
Hydraulic Dialer Product Introduction
YBD type hydraulic deflector is a new type of derailment tool suitable for railway line maintenance and repair operations. This machine uses a flat four-bar mechanism to increase the amount of lane change, while the amount of lane lift is small, which will not cause line damage during lane change operation. Among them, YBD-245 channelizer has dual-speed function.
|Name / parameter / model|| YBD-147 |
| YBD-196 |
| YBD-245 |
| YBD-245A |
|Thrust of piston rod KN||147||196||245||245|
|Maximum channeling amount mm||105||105||110||110|
|Pressure relief valve pressure MPa||60||70||64||64|
|Machine weight KG||25.5||26||27||27|
Product use of mining truck reset machine
Hydraulic resetting machine (commonly known as on-road machine) is an ideal tool for mining road maintenance. Hydraulic resetting machine is suitable for mining operations, and is used for resetting locomotive and minecart below 15 tons.
Components and main structural characteristics of hydraulic reset machine
1, the whole machine components: the whole machine is mainly composed of hydraulic transport part, lever mechanism part and horizontal pulley frame part.
2. Characteristics of main mechanism: The machine is composed of two coordinate hydraulic movements. Its compact structure, high work efficiency, stability and reliability, and low labor intensity. Especially because there is no power consumption, so the safety is good. It is suitable for on-road (reset) operation of locomotive or minecart below 15 tons.
3. Lifting system (including lever mechanism part and hydraulic transport part)
The straight rail device is a manual hydraulic special tool for straightening (or bending) the horizontal direction of the rail on the line. The body is forged from special steel, with reliable performance, compact structure, light weight, and easy disassembly and assembly. Especially for the two heavy rails of 60kg / m and 75 kg / m, it is particularly convenient to apply, and can achieve the full cross-section of the rail, and it must not produce rail distortion. It is a new type of manual hydraulic machine necessary for mechanization of maintenance .
Technical parameters of straight rail device
|Maximum straight rail force||Rated straight rail force||Hydraulic system pressure||Outside dimensions||weight|