The winch should be at an ambient temperature of -10 ℃ ~ + 40 ℃, and the relative humidity of the environment should not exceed 95%
(+ 25 ℃), work under the condition that the altitude should not exceed 1000 meters.
Introduction of two-speed winch
The two-speed winch is an explosion-proof winch, which is mainly used for the movement, fall and transportation of the hydraulic support on the coal mining face under the environment of coal dust or explosive gas in the coal mine. The weight has two speeds and two traction forces.
Overload operation is strictly prohibited!
Forbidden overload operation!
Power off is strictly prohibited!
No blackout humping!
It is strictly forbidden to carry people or promote!
Strictly for the manned or promotion!
The electrical products supporting the winch must have a safety certificate during the validity period!
Electrical products winch matching must have the safety standard certificate within the period of validity!
Shifting of the winch under normal operation or on a slope is strictly prohibited!
Winch in the normal operation or ramp load is prohibited under the shift!
Use range of two-speed winch
This winch can be used for auxiliary transportation work such as the removal of comprehensive mining equipment and various mechanical and electrical equipment in coal mining working faces of coal mines. For material transportation, the slope used for uphill and downhill shall not be greater than 25 . It can also be used for the back column roofing of the mining face. The winch has two speeds, fast and slow, and can change speed and traction according to the needs of the site to work under different conditions.
Maximum static tension of outer rope at slow speed, unit: 10KN
The second characteristic code (no self-locking ability)
The first feature code (two-speed multi-purpose)
Due to different production batches and specific models, the pictures are for reference only. Please contact our sales staff for specific verification.
Structural features of two-speed winch
The winch has a long shape, which is convenient for the relocation and fixing of the winch. The width and height of the winch are small, which is suitable for working under the conditions of narrow underground space. The structure of the winch is simple and compact. Simple operation, as long as the speed control handle, opening and closing control button switch can be easily used.
Two-speed winch lubrication and sealing
The lubrication of the winch is not only related to the normal work of the winch, but also directly affects the life of the winch, so the lubricant must be replaced in a timely manner. The oil quality of the lubricating oil must meet the requirements and must not be mixed with impurities such as dust, dirt, iron filings, and water. Closed gear transmission lubricating oil uses 250 # load industrial gear oil. The highest oil level in the reduction gear box should not exceed one third of the diameter of the large bevel gear, and the minimum oil level should not be less than one third of the width of the large bevel gear. The rolling bearings in the closed transmission case are all lubricated with oil.
Two-speed winch lubrication and sealing
Open gear transmission and rolling bearings use calcium-sodium-based grease (SY1403-77). The amount of grease in each rolling bearing must not exceed two-thirds of its capacity. It should be refueled or replaced every 3-6 months. For new or overhauled winches, the lubricating oil in the reduction gear box must be replaced and cleaned after half a month of operation to remove metal fines from the transmission parts. The split surface of the reduction gear box and each sealing surface shall not allow oil leakage after sealing, and apply sealant to each sealing surface.
Assembly, adjustment and commissioning of two-speed winch
The winch should check the number of parts before assembly, and repair all parts. Clean and prevent iron filings and dust from entering the winch. All rolling bearings must be heated in oil (generally heated at 90-120 ° C) for assembly. Do not hit hard to prevent parts from being deformed. The winch should be assembled first and then assembled. Before the final assembly, it should be assembled into two main parts: the speed reducer and the reel device.
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