The elevator hook without machine room is directly placed on the floor slab, how to calculate the an

with round bars of 21.

The elevator floor does not leave holes because the elevator is generally supplied by A, and the models of each elevator are different, and the size and spacing of the holes are also different, and the design cannot clarify this. Therefore, it is generally indicated that the hole is reserved according to the size of the elevator manufacturer. Even though.

The holes are reserved according to the manufacturer's size, and they are not of much significance. Later, the manufacturer's installers did not follow the building axis when staking out and installing the elevator.

Line lofting, but according to their own construction method to release the elevator line, and the original reserved hole naturally does not meet their requirements, the result is to re-punch the hole in the floor slab, and then fill the original reserved hole. Elevator hooks are generally designed in the stairwell.

In the roof beam, because this hook is actually only used as a hoisting host in place when the elevator is installed, it is not used after the elevator is installed.

It works (it can be used if you change the host in the future). In this way, for the structure, the hook load is only temporary, so only some reinforcement needs to be considered in the structure. In the process of using the elevator in the future, the force of the driving wheel is passed.

The I-beam of the elevator is supported on the beams at both ends, and the floor slab at the position of the ladder shaft does not bear the elevator load, so the hole is opened and knotted.

The impact is limited.

According to the provisions of the installation project, the hook is made of first-class steel with good ductility, and the design value of the steel strength used in the design is.

50MPa, while the design value of the strength of the first-class steel in the building structure is generally 210MPa, which is mainly due to the unpredictable installation process.

There are many factors and all of them belong to dynamic load. In order to be sure, the first-grade steel with good ductility is used while reducing the design strength of the steel.

Ensure the safety factor, if the steel is damaged, a large deformation can be found to prevent accidents.

Generally, according to the design of the large sample construction, if not clear, you can ask the elevator manufacturer technical personnel. Generally, as long as the hook is satisfied, it can be hung.

The hook of the manual hoist will do.

No problem, but remember not to make a big hole, it is recommended to buy hook type expansion screws to hang sandbags, screw model is not less than 10,

Summary. Dear, hello, the size and position requirements of the machine room-less elevator hook should meet the following standards:1

The hook should be sized to withstand the rated weight of the elevator and easily attach to the rigging at the bottom of the elevator. 2.The position of the hook should be located in the center of the elevator and fit closely with the bottom of the elevator car.

3.The height of the hook should be based on the actual situation to ensure that there is enough space when installing and maintaining the elevator. 4.

The hook connection should be secure to ensure that the elevator does not have any safety issues when it is running and stopping. It should be noted that different countries and regions may have different standards and regulations, so local laws and regulations and relevant standards should be observed when designing the size and position of the elevator hook. Please pay attention to the check, thank you.

Dear, hello, the size and position requirements of the machine room-less elevator hook should meet the following standards:1The hook should be sized to withstand the rated weight of the elevator and easily attach to the upper bundle of the hanging device at the bottom of the elevator.

2.The position of the hook should be located in the center of the elevator and fit closely with the bottom of the elevator car. 3.

The height of the hook should be based on the actual situation to ensure that there is enough space when installing and maintaining the elevator. 4.The hook connection should be secure to ensure that the elevator does not have any safety issues when it is running and stopping.

It should be noted that different countries and regions may have different standards and regulations, so local laws and regulations and relevant standards should be observed when designing the size and position of the elevator hook. Please pay attention to the check, thank you.

Dear, hello, the advantages and disadvantages of machine-room-less elevator are the source of machine-room-less elevators refers to the elevator whose mechanical parts and accessories are not placed in a special machine room, but directly installed in the elevator shaft. Compared with the traditional machine room elevator, the machine room-less elevator has the following advantages and disadvantages: Advantages:

1.It can save the construction area and building materials, reduce the occupied area of the computer room, the equipment and other related components, and reduce the construction cost; 2.The design of the machine-room-less elevator is more compact, which makes the elevator machine room more ventilated and bright, and reduces the noise and pollution caused by the machine-room elevator; 3.

The maintenance cost of the machine room-less elevator is lower, because the expenses required for equipment, maintenance and cleaning of this part of the machine room are reduced; 4.The installation of machine-room-less elevators is easy and can reduce the construction time in the middle of the building. Cons:

1.Machine-room-less elevators require a higher initial investment, and more consideration and experience are required in elevator design and material use; 2.The installation of machine-room-less elevators requires special skills and experience, including the construction of elevator shafts, power wiring, and ventilation; Finch state 3

Machine-room-less elevator expansion and upgrade require more specific planning and construction plans, which may introduce design constraints or additional maintenance costs; 4.In some special cases, machine-room-less elevators may have some design and safety limitations, such as in high-rise buildings without good ventilation, machine-room-less elevators may face challenges in terms of temperature and pressure, requiring professional design and maintenance.

Summary. The minimum distance between the elevator hook beam and the machine room floor is 15 meters, and now large elevator companies have machine-room-less and small machine room elevators. As the name suggests, the machine-room-less elevator does not need a machine room at all.

The definition of a small machine room elevator is that the machine room is the same size as the hoistway. The elevator of the 17-story residence is enough, and the minimum height of the machine room is about about one. It is best to negotiate with the elevator company first, determine the product, and determine the size of the machine room.

The elevator hook beam is 15 meters away from the machine room floor, and now large elevator companies have no machine room, small machine room elevator posture. As the name suggests, the elevator does not need a machine room at all. The definition of a small machine room elevator is a one-state chain size of the machine room and the hoistway.

The elevator of the 17-story residence is enough, and the minimum height of the machine room is about about one. It is best to negotiate with the elevator company first, determine the product, and determine the size of the machine room.

Lift without machine room refers to an elevator that does not need to be closed by a special machine room for the installation of elevator drive hosts, control cabinets, speed limiters and other equipment, and is suitable for various high-end office buildings, star-rated hotels, exhibitions and other places. Its advantages are: green environmental protection, cost saving, space saving; Low vibration, low noise, stable and reliable; High efficiency and energy saving; Easy to install and maintain.

Hello, the size and position requirements of the machine-room-less elevator hook are generally designed by the elevator manufacturer according to the model and specifications of the elevator, but the following requirements are generally required: 1Hook size:

The position of the hook should be above the center of gravity position of the elevator car and the counterweight, so that the stress point of the hook and the center of gravity of the elevator are in the same vertical straight line, so as to ensure that the elevator can run smoothly. 3.Security Protection:

The hook should be equipped with corresponding safety protection devices, such as limit switches, fuses, etc., to ensure that the hook will not be abnormal during operation. In short, the design of the size and position of the elevator hook without machine room should take into account the safety, reliability and convenience of use of the elevator, and should comply with the relevant national standards and specifications. I hope I'm helpful to you!