Product name : CHINA FACTORY EXPLOSION-PROOF THREE-PHASE ASYNCHRONOUS ELECTRIC MOTOR FOR YBS AND YBSS SERIES CONVEYORS.MINE EXPLOSION-PROOF TWO-SPEED THREE-PHASE ASYNCHRONOUS MOTOR OF THE YBSD SERIES
Product No. : 202432710316
Details:
1 Explosion-proof two-phase asynchronous motors for YBS and YBSS series conveyors and explosion-proof two-speed two-phase asynchronous motors for YBSD series mines
An electric motor (hereinafter referred to as an electric motor) is used to drive a flexible scraper conveyor and a belt conveyor of the bottom face of a coal mine.
A special motor for moving a machine or other equipment.
The fire resistance of the engine is based on the GB3836.1-2000 standard "Electrical equipment for explosive gas environments, Part 1: Through
Requirements for use" and GB3836.2-2000 "Electrical equipment for explosive gas environments, Part 2: Explosion protection rules of type "d"
It is made of fire-resistant material, and its explosion protection marking is “ExdI".Suitable for use in explosive gas mixtures such as methane or coal dust.
3. Description of the structure
3.1 stator
The main body of the engine is made of steel plate, which has high impact and collision resistance, and the rest of the body is made of steel plate.
All parts and assemblies are made of grey cast iron or sheet steel not lower than HT250.The cooling water channel of the water-cooled engine withstands <
The pressure is 3 MPa.The fixed iron core is made of high-quality electrical silicon steel sheet with high permeability and low loss, and the fixed winding is made of high-strength
Made of round copper wire coated with polyacetic acid or high-strength copper flat wire, the ends of the coils are securely fixed and tightened, as well as processed during production.
Many pulse voltage and ground voltage resistance tests have been conducted between Western countries, and a VPI pressure vacuum impregnation process has been used to process solvent-free paint.
Make the stator coil a single unit, and the winding and insulation have good electrical, mechanical, moisture-proof properties and corrosion resistance.
Corrosion resistance and heat resistance.
3.2 The rotor
The rotor is made of cast aluminum or copper rod, and the rotor core is made of high-quality electrical silicon steel sheet with high permeability and low loss.
After checking the dynamic balance, the operation becomes stable, the vibration is low, and the noise is low.
3.3 Junction box
The YBS series motor junction box is located at the top of the base, and there are three terminal blocks in the junction box, which are suitable for single voltage connection.
A wire or six terminals are suitable for double voltage connection.The input to the junction box is divided into a single or double input for connection
Insert the cable.The method of insertion into the junction box is a cable in a rubber sheath.
The YBSS series motor junction box is located at the top of the motor, and the junction box is equipped with six main terminals, which are suitable for dual power supply.
The voltage wiring can be provided with a small terminal suitable for winding overheat protection wires.The inlet of the junction box is the only inlet for connection
Connect it to the input cable.The main method of entry into the junction box is a rubber-sheathed cable.
The YBSD series motor junction box is located at the top of the motor, and the junction box is equipped with six terminal blocks, which are suitable for high-speed operation
And low-speed wiring, can be equipped with small terminal blocks suitable for winding overheat protection wires.The entrance to the junction box is a double entrance
These are high-speed and low-speed wire entries, and the wire entries are rubber-sheathed cables or explosion-proof cable connectors (explosion-proof plugs and bolts).
All engine junction boxes are reinforced with a design that has high mechanical strength.The inner cavity of the junction box is larger in size
The leakage distance and the electrical gap between the terminals comply with national standards, and can also meet the operating conditions of underground electrical wiring in coal mines.
requirements.The connection between the terminal block bushing and the box socket has a threaded explosion-proof structure or an explosion-proof locking structure, which has good strength.
Explosive performance, and it is not easy to damage during maintenance, assembly and disassembly.The mounting bolts are fixed with a double nut, which can reduce the load
Local heat generation at the junction between the connecting cable and the mounting bolt increases the reliability of the connection between the external cable and the mounting bolt
3.4 bearings
The engine uses special bearings for the engine, and the bearings are used by well-known brands.The supporting structure can be designed with continuous injection
An oil drain device, as well as, in accordance with the user's requirements, a bearing temperature control device can be provided.
4. Terms of Use
4.1 Environmental conditions for the use of the engine
4.1.1 The height does not exceed 1000 m above sea level.
4.1.2 The ambient temperature varies depending on the season. For an engine that cools the air, the ambient air temperature is -20~+40C, for an engine that cools the air, the ambient air temperature is -20~+40C.
For water-cooled electric motors, the ambient temperature is 0~+40°C.
Note: If the engine is intended for use at an altitude of more than 1000 m or the ambient temperature is above 40°C or below -20°C, it should be used in accordance with
Provisions GB755.
4.1.3 The maximum relative humidity of the ambient air should not exceed 95% (at a temperature of 25 °).
4.1.4 Underground in coal mines with a risk of explosive methane formation.
4.1.6 In a place where there is no significant vibration.
4.1.7 In an environment that does not contain gases and vapors that destroy metal insulation.
4.1.8 Where there is dripping water.
4.1.9 The installation category is a subcategory.
4.1.10 The pollution level is equal to level 3.
4.1.1 For water-cooled engines, the temperature of the cooling water at the inlet to the cooling system should not exceed 30°C, and the operating pressure of the cooling water should not exceed
More than 3 MPa，
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