China Coal supplies JH series return column winches, the best-selling high-quality winches in 2015

1. Introduction to the back-column winch The back-column winch, also known as the slow-speed winch, is used for the return column topping of the coal mine underground coal mining face. Due to its low height and light weight, it is especially suitable for mining working faces in thin coal seams and steeply inclined coal seams, as well as for recovering metal pillars sunk into the floor or buried under gangue in various coal mining working faces. With the improvement of mechanized coal mining, it is increasingly used in mechanized coal mining working faces for installation, recovery and traction of various equipment and spare parts. The main models are: -, -, -, -,. All products should have the coal safety mark.
2. Safety operating procedures for return column winch drivers
． Preparation
Tools: small hammer, long-handled hook.
Spare parts: oil can, screws.
． Inspection and treatment
Whether the roof, tunnel and support near the winch are safe, and whether there is accumulation of debris that affects the operation
Whether the winch is firmly installed, and whether the pressure pillars and fortresses are firm and strong
Electrical equipment Whether the arrangement is stable and easy to operate
Whether the components, bolts, washers, guards, etc. of the winch equipment are complete and firm, and whether the common brakes are flexible
Whether the oil quality of the reduction box and bearings of the winch is qualified, and whether the oil amount is sufficient , whether there is no oil leakage
Whether the steel wire rope is firmly fixed on the drum, whether the rope arrangement is neat, whether the area of broken wires in one lay length exceeds the total cross-sectional area of the original steel wire rope
whether the signaling device is sensitive and reliable, and it is necessary to detect problems Dispose of it properly. Otherwise, the operation is not allowed.
3. Test run
Before the test run, the switch and electric bell should be placed near the brake handle to facilitate operation
Carry out ~ forward and reverse test runs
Arrange the wire rope neatly on the drum, and tighten the rope when Use a small hammer or a hook with a handle to guide the rope, and do not follow the rope with your hands or feet to avoid twisting the wire rope. Contact the back-column worker with a signal to test its accuracy.
． You must concentrate, pay attention to the signals, and follow the back pillar signals to drive, park, reverse and other operations. Do not move away from the winch when driving, but stand behind the guardrail.
． When parking under normal circumstances, you should use mechanical brakes to stop the vehicle after powering off, and reverse parking is not allowed. When the temperature of the motor and sliding bearing reaches ℃, stop the vehicle to find out the cause, and wait until the temperature drops before starting the vehicle.
． Notes for signal workers (point workers):
Follow the instructions of the backing workers and send signals quickly and accurately
Concentrate and pay close attention to the direction of the wire rope. When you find that the wire rope is running in the wrong direction, you should immediately Send a stop signal and re-send the correct signal
The signal worker always keeps a distance of ~ meters from the return column, changes the working position as the position of the return column is delayed, and winds up the cable
When adjusting the working position, he should hold his hand Signal devices are not allowed to suspend signal lines to avoid damaging signal line connectors and causing accidents.
． When a stuck rope is found, operate according to the following requirements
Remove the stuck wire rope with the assistance of the pillar puller, pulley watcher, etc.
Use a crowbar or other tools to pry up the stuck wire rope, if necessary It can be supplemented by manpower lifting the rope
After stretching the wire rope, use the big hook (or clip) at the end of the rope to tie it to a solid pillar and then reverse the vehicle to loosen the stuck wire rope
Reversing the vehicle to deal with the jam When pulling the rope, if the wire rope is pulled to the side of the winch drum and the rope is still not loosened, the vehicle should be stopped to avoid damage or breakage of the wire rope. When reversing the vehicle to deal with a rope jamming accident, on-site personnel must retreat to a safe location.
． The winch driver can only start the finishing work after receiving notification from the team leader or the column return worker that the task has been completed.
Wrap all the wire rope around the drum
Cut off the power, turn the switch handle to the power-off position, and tighten the locking bolt
Do a good job in sanitation around the winch
Assist in the signal work Signal Cables
Pack your tools.
． Report the operation status and existing problems to the successor and team leader.
3. Model parameters of return column winch:
Model parameters - - -
Model single-cylinder winding traction force
Rope speed. . .
Rope capacity and rope diameter.
Rope length
Drum size (diameter and width)
Total reduction ratio.
Overall dimensions (length, width and height)
Winch weight (including motor)
Motor Specifications and types -
Power. .
Number of revolutions (r/)
Voltage
Electrical equipment explosion-proof magnetic starter 3- 3- 3-
Explosion-proof control button
China Coal Industry and Mining is a well-known winch manufacturer. The quality of its return column winches is guaranteed and the price is low. It is your best choice. In addition, we supply high-quality mining winches, pneumatic winches, mining winches, dispatching winches, return column winches, shaft sinking winches and other types of mining winches, dispatching winches, return column winches, and shaft sinking winches with complete models. Welcome to order!
Order hotline contact: Li Hua:
Company name: Mechanical and Electrical Manufacturing Branch of Shandong China Coal Industry and Mining Materials Group Co., Ltd.
Shandong China Coal Industry Machinery Equipment and Mineral Materials Group Co., Ltd.
Registered address: Jining High-tech Zone Mechanical and Electrical Industrial Park