- 1 、How heavy is the five-meter lift used on the construction site
- 2 、Live on the fourth floor, want to re-paste the floor tiles, there is no elevator, what is the most economical way to transport the materials up?
- 3 、Practical operation steps of construction elevator
- 4 、What kind of elevator is used to stick tiles on the walls?
- 5 、Can the elevator walk the tile?
- 6 、Why household hanging brick electric lifts are becoming more and more powerless
How heavy is the five-meter lift used on the construction site
The weight of the five-meter elevator used on the construction site varies according to the model. The construction elevator is usually called the construction elevator. The load of the construction elevator is related to the type of the lift: SC200/ 200, with a load of 2 tons per cage. SC100/ 100, with a single cage load of 1 ton. SS100/ 100, with a single cage load of 1 ton.
Live on the fourth floor, want to re-paste the floor tiles, there is no elevator, what is the most economical way to transport the materials up?
You can put a large empty box under the weight, and then put the weight in the empty box and put it together, which will be much easier.
A simple way to make use of the principle of leverage. Moreover, a large area of empty boxes is one of the reasons why it feels lighter. It is also convenient to use tracks to lift heavy objects up the stairs. The method has no vertical force, so the loss of force can be reduced. The specific method is to put a piece of wood on the stairs and a heavy object on the board.
Movable pulleys or pulleys can lift heavy objects to save labor. You can also choose the moving pulley to move the pulley, and if you need more force, use the pulley block. When using a pulley, a pulley whose position moves with the pulley is called a moving pulley. If the weight is hung directly on the pulley, the pulley will also rise when the weight is lifted, so it is called the pulley. It can go from sliding friction to rolling friction.
It can save labor and change the direction of power. To change the power direction, you can combine fixed pulleys and movable pulleys into pulleys.
Pulley group rope method: the pulley group is composed of several fixed pulleys and multiple movable pulleys, which can save labor and change the direction of force. In use, the labor cost reduction and winding method of the rope depend on the use effect of the pulley block. The principle of the rope is that when the number of fixed pulleys is the same as that of moving pulleys, the free end of the rope can be pulled out of the moving pulley or from the fixed pulley, and when the fixed pulley comes out, the fixed end of the rope is suspended from the fixed pulley. When fixing a moving pulley, when the fixed end of the rope is suspended from the moving pulley, the pulley block is less difficult than suspending the fixed end of the rope to the fixed pulley (because there are more ropes to support the weight).
Practical operation steps of construction elevator
(5) the use of construction elevator
5.1 preparation before use
5.1.1 the driver of construction lift shall hold the qualification certificate for special operation of construction and shall not operate without a license.
5.1.2 the user shall disclose the safety technology in writing to the driver of the construction lift, and the information shall be kept for reference.
5.1.3 the user shall fully lubricate the parts to be lubricated in accordance with the requirements of the operating instructions.
5.2 operational use
5.2.1 faulty construction lifts shall not be used.
5.2.2 it is strictly forbidden for construction lifts to use anti-fall safety devices that exceed the valid standard period.
5.2.3 the rated load and rated number of occupants of the construction lift shall be placed in a conspicuous position in the cage. It is strictly forbidden to use construction lifts in excess of rated deadweight or rated number of occupants.
5.2.4 when the deviation between the power supply voltage value and the rated voltage value of the construction elevator is more than ±5%. Or when the total power supply is less than the specified value of the construction elevator, the construction elevator shall not be used.
5.2.5 obvious safety warning signs should be set up within the scope of construction lift operation, and safety protection should be done in the centralized operation area.
5.2.6 when the building is more than 2 storeys, a protective shed shall be set up above the ground access of the construction lift. When the height of the building exceeds 24m, a double-layer protective shed should be set up.
5.2.7 users shall take corresponding safety protection measures for construction lifts according to different construction stages, surrounding environment, seasons and climate.
5.2.8 the user unit shall set up a corresponding equipment management organization or be equipped with full-time equipment management personnel on the site, and designate full-time equipment management personnel and full-time production safety management personnel for supervision and inspection.
5.2.9 in case of heavy rain, heavy snow, heavy fog, wind speed at the top of the construction lift is greater than 20m/s or guide rail frame, and there is ice on the surface of the cable, the construction lift shall not be used.
5.2.10 it is strictly forbidden to use the stroke limit switch as the control switch to stop operation.
5.2.11 during the period of use, the user shall maintain the construction lift regularly in accordance with the requirements of the operating instructions.
5.2.12 within the horizontal distance of 5m around the foundation of the construction lift, no well ditches shall be dug, flammable and explosive materials and other sundries shall not be piled up.
5.2.13 there shall be no obstacles in the operation channel of the construction lift. Do not use the guide rail frame, horizontal strut support, floor station, etc., to pull or hang scaffolding, construction pipes, rope slogans, flags, etc.
5.2.14 when the construction lift is installed in the internal shaft of the building, a closed barrier shall be erected around the operating passage.
5.2.15 for construction lifts installed in dark places or working at night, bright floor number lights should be installed throughout the journey. There should be enough lighting in the work area during night construction, and the lighting should meet the requirements of the current industry standard “Technical Specification for temporary Power use at Construction site” JGJ 46.
5.2.16 Construction elevators shall not use peeling or exposed wires and cables.
5.2.17 the floor of the hoist cage for construction shall be kept dry and tidy. There shall be no long-term stacking of items in the passageway area of each station.
5.2.18 drivers of construction lifts are strictly prohibited from working after drinking. The driver should not chat with other personnel during working hours and should not interfere with the operation of the construction lift.
5.2.19 drivers of construction lifts shall abide by the safety operation rules and safety management system.
5.2.20 for construction lifts with multi-shift operation, the handover system shall be implemented, and the shift driver shall fill in the shift record form in accordance with Appendix D of this procedure. The replacement driver should carry out a pre-shift inspection and confirm that it is correct before starting the operation.
5.2.21 before the construction lift is used for the first time every day, the driver should lift the cage off the ground 1m~2m and stop to check the reliability of the brake. When a problem is found, it should be repaired before it can be shipped.
5.2.22 the construction elevator shall carry out an overload test of 1.25 times the rated weight every 3 months to ensure the safe and reliable performance of the brake.
5.2.23 drivers are not allowed to leave the construction lift without authorization during working hours. When there are special circumstances to leave, the construction lift should be parked at the bottom, turn off the power supply and lock the cage door.
5.2.24 when operating a construction lift with manual switch, you shall not use electromechanical interlock to start or stop the construction lift.
5.2.25 floor door bolts should be set on one side of the construction elevator, and the floor door should be normally closed. The floor door shall not be opened or closed without the permission of the driver of the construction lift.
5.2.26 the special switch box of the construction elevator shall be located near the guide rail frame where it is easy to operate, and the distribution capacity shall meet the requirements of direct start-up of the construction elevator.
5.2.27 during the use of the construction lift, the size of the carrying materials should not exceed the limits of the cage.
5.2.28 bulk materials should be packed in containers, bundled or packed in fabric bags, and the load should be distributed evenly when stacked.
5.2.29 when carrying dissolved asphalt, strong acid, strong alkali, solution, flammable goods or other special materials, the relevant technical departments shall make a risk assessment and take safety measures, and shall report in writing to the driver of the construction lift and the relevant operators before carrying.
5.2.30 when using handling machinery to move materials into the cage of the construction lift, the handling machinery shall not collide with the construction lift. When unloading, the material should be placed slowly.
5.2.31 when the trolley enters the cage, the concentrated load at the wheel should not be greater than the allowable bearing capacity of the bottom of the cage and the floor of the floor station.
5.2.32 all kinds of safety devices on the cage shall be kept in good condition and effective. After heavy rain, heavy snow, typhoon and other bad weather, all safety devices should be comprehensively inspected to confirm that they are safe and effective before they can be used.
5.2.33 when abnormal conditions are found in the operation of the construction lift, the machine should be stopped immediately until the fault is eliminated before it can continue to run.
5.2.34 when the construction elevator stops halfway due to power outage or other reasons, manual descent can be carried out. The manual descending speed of the cage shall not exceed the rated running speed.
5.2.35 after the completion of the operation, the construction lift should be returned to the bottom, the control switches should be set to zero, the power supply should be cut off, and the switch box, cage door and ground protective fence door should be locked.
5.2.36 the use of wire rope construction hoist shall also comply with the following provisions:
1 the steel wire rope shall conform to the provisions of the current national standard “maintenance, maintenance, installation, inspection and scrapping of crane wire rope” GB/T 5972
2 during the operation of the hoist cage of the construction lift, the wire rope shall not touch or friction with the shelter or other objects
3 when the cage is on the ground, the final wire rope wound on the hoist drum should not be less than 3 turns, and the wire rope on the hoist drum should be free from random rope phenomenon.
4 when the hoist is working, no objects shall be placed on the upper part of the hoist.
No cleaning or refueling shall be carried out while the winch or traction machine is running.
5.3 Inspection, maintenance and repair
5.3.1 before starting work every day and before each shift, the driver of the construction lift shall inspect the construction lift in accordance with the operating instructions and Appendix E of this Code. The inspection results shall be recorded and problems found shall be reported to the user.
5.3.2 during the period of use, the user shall organize professional and technical personnel to inspect the construction lift according to Appendix F of this regulation every month, and record the inspection results.
5.3.3 in case of natural disasters, equipment accidents or suspension of work for more than 6 months that may affect the safety and technical performance of the construction lift, the construction lift shall be re-organized for inspection and acceptance.
5.3.4 maintenance and repair of construction elevators shall be carried out in accordance with the operating instructions. The interval between maintenance and repair should be determined according to the frequency of use, the operating environment and the condition of the construction lift. The user shall arrange sufficient time for equipment maintenance and repair during the use of the construction lift.
5.3.5 for the construction lift after maintenance and repair, after the inspection and confirmation that the parts are in good condition, it is appropriate to carry out the rated load test of the construction lift. The double cage construction hoist should carry out the rated load test on the left and right cages respectively. The scope of the test shall include all aspects of the normal operation of the construction lift.
5.3.6 during the use of the construction lift, the rated deadweight fall test shall be carried out not less than once every 3 months. The method, time interval and evaluation standard of the fall test shall meet the relevant requirements of the operating instructions and the current national standard “Construction lift” GB/T10054.
5.3.7 the power supply should be cut off and eye-catching warning signs should be set up when overhauling the construction elevator. When power-on maintenance is needed, protective measures should be taken.
5.3.8 do not use construction lifts that do not eliminate hidden safety hazards.
5.3.9 it is strictly forbidden to carry out maintenance and repair operations during the operation of the construction lift.
5.3.10 during the maintenance of the construction lift, the parts that are worn or damaged beyond the prescribed degree shall be repaired or replaced in time, and shall be inspected and accepted by professional and technical personnel.
5.3.11 all records related to the inspection, maintenance and repair of the construction lift shall be included in the safety technical file and filed on the site during the use of the construction lift.
What kind of elevator is used to stick tiles on the walls?
This double-column aluminum alloy can be used.
Can also use mobile scissors, the general construction site has power, it is not recommended to buy self-walking scissors or curved arms, not as cost-effective as aluminum alloy and mobile scissors.
Can the elevator walk the tile?
I can’t. The construction elevator is usually called the construction elevator, but the definition of the construction elevator is broader, and the construction platform also belongs to the construction lift series. The bearing capacity of the tile is small, and the elevator can no longer be transported and moved on the tile. Otherwise, the bearing capacity of the tile will be too large and the ground will be damaged.
Why household hanging brick electric lifts are becoming more and more powerless
In this case, first check whether the gearbox lubricating oil is adequate, and whether the bearings of each shaft are damaged, if all are normal, the motor will burn out slightly, and the motor must be repaired in order to return to normal. I am really looking forward to helping you to adopt it.
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