Home > news > Content

Some safety requirements for elevator installation

The single and double cage elevators assembled with the outer cage and the hanging cage have been debugged at the factory and can be easily installed. For used lifts, firstly conduct a full inspection according to the requirements in&"Regular inspection GG". If the speed limiter or gears, racks, rollers and other parts are about to wear to the limit size, they must be replaced in advance. ;
A. Installation of single cage elevator:
*Clean the basic surface;
* Use lifting equipment to hang the hanging point on the hanging cage;
*Lift the lifting platform into place;
*Install the anchor bolts;
*After the upper drive elevator puts the cage in place and installs the anchor bolts, install a standard section;
*Release the brake on the motor by first removing the two cotter pins, making a mark on the nut opening before removing it for easy resetting, and then tightening the two nuts, making sure to unscrew the two nuts in parallel until When the brake is released, the brake disk can be turned at will;
* Use the lifting equipment to lift the transmission trolley;
* Position the transmission trolley from above the standard section;
*After aligning the connecting ear plate of the driving trolley and the hanging cage, insert it into the pin and fix it;
*Reset the brake;
*Measure the verticality of the rail frame with a spirit level or a wire drop to ensure that the verticality of each riser of the rail frame in the adjacent direction is 1/1500 smaller; *Adjust different thickness adjustment steel plates between the chassis and the foundation at the anchor bolts , To adjust the verticality of the rail frame;
*When the guide rail is adjusted to vertical, use 350N*M torque to press the four anchor bolts;
*Use the same method to adjust the verticality of the outer cage door frame so that the verticality of the outer cage door frame should not be greater than 1/1000 in two similar directions; *Install the guard rail on the top of the hanging cage;
*Adjust the door lock;
B. Installation of double cage elevator:
* First install the left half of the elevator using the above method of installing a single cage;
*Connect the right half of the outer cage with bolts;
*Adjust the verticality of the outer cage door frame and tighten the anchor bolts;
*Release the brake on the motor in the cage (the method is the same as before);
*Lift the outer cage with lifting equipment;
*Place the cage in place from above the standard section;
*Reset the brake;
Note: Turn the bolt on the brake to the original position, and install the cotter pin.
C. Adjustment after installation:
*Check whether all the padding or bolts used for transportation are removed;
* The meshing gap between gear and rack should be guaranteed at 0.2-0.3MM;
* The gap between the guide wheel and the back of the rack should be 0.5MM;
* The gap between each roller and the standard joint riser is 0.5MM;
*All door switches should be flexible;
*Install buffer spring;
D. Installation of boom:
Note: Grease should be added before installation.
*Put the boom into the mounting hole on the top of the cage and use it;
E. Installation of rail bracket:
* Wipe clean the pipe joints and rack pins at both ends of the standard section, and add a small amount of grease;
*Open a guardrail, put down the hook on the boom, and hook the standard section spreader;
*Hook a standard section with a standard section spreader, with the end of the cone sleeve facing down;
* Shake the hand winch to hang the standard section to the top of the cage and place it firmly;
*Close the guardrail and start the elevator. When the cage is raised to the top of the rail frame, it should be jogged until the top of the cage is about 300MM away from the top of the rail frame;
*Lift the standard section with a hanger, align the lock holes on the riser and rack under the standard section, put down the hook, and fasten with bolts;
* Loosen the hook, turn the boom back, and tighten all bolts with a tightening torque of 300N*M;
*Connect the standard sections in sequence as above until the required height is reached. With the increasing height of the rail frame, the wall post should be installed at the same time, and the verticality of the rail frame installation should be checked.
*If the on-site lifting equipment such as tower crane is used to install the rail frame, you can first connect 4--7 standard sections on the ground into a group, and then hang the rail frame;
Note: If there is a counterweight slide on the standard section, you should ensure that the misalignment at the seam is not greater than 0.8MM.
F. Three types of attachment rack installation:
Note: The horizontal inclination of the attached wall bracket is not more than 8 degrees.
G. Counterweight installation:
*Importantly, the hoisting cage and the outer cage are not hoisted in place before the high standard section is installed after the completion of the installation;
* Install the buffer spring in the counterweight position of the foundation;
*Use a lifting device to place the counterweight in the counterweight slideway;
*Check the gap between the counterweight guide wheel and the slideway: 0.5MM to ensure that each wheel rotates flexibly;
H. Installation of sky wheel and wire rope:
*When the guide rail is installed to the required height, the elevator with counterweight should install the sky wheel and hang the counterweight with a steel rope;
*Hang the sky wheel, rope wire rope and wire rope frame to the top of the cage, and prepare rope clips, bolts, etc.;
*Fix the wire rope rack to the hanging cage;
*Raise the cage to 0.5 meters from the top of the rail frame, install the skywheel to the top of the rail frame with a boom, and fix it with M24 bolts;
Note: It should be ensured that when the lifting cage reaches a large lifting height, the counterweight is greater than 550MM from the ground.
*Install the sheave;
*Put the wire rope through the rope wheel and the sky wheel to the counterweight of the ground. And fix the wire rope on the counterweight with a rope card;
Note: When placing the wire rope up and down from the top of the cage, the weight of the wire rope should be considered,
Prevent accidents caused by disengagement.
* In the same way, fix the other end of the wire rope to the rope wheel with a rope card;
Installation of cable protection frame:
* Use a lifting tool to hang the cable roll above the cable drum;
*Release about 2.5 meters of cable to connect the cable to the power box;
*Pull the cable from the bottom of the cable drum to the power box, do not connect it for now;
*Put the cable clockwise into the cable drum, making each circle as large as possible, its diameter is slightly smaller than the diameter of the cable drum;
* Fix the cable on the cable bracket and insert the cable plug into the socket;
*Connect the cable to the power box, start the elevator to check whether the cable is entangled;
*Install the cable protection frame at the same time during the heightening of the rail frame;