What is the longitudinal tilt angle of the platform during the lifting or lowering of the electric g

The lifting button of the hanging basket is normal, the falling button does not work, how to deal with itAnswer: 1. The hoist motor is damaged, and the hoist motor can not rise if it does not turn after the power supply is turned on, and the descent is that the brake is disconnected and the gondola slides down by the weight of the gondola. 2. The electric gondola travel switch is damaged, and the protection circuit action after the lifting stroke switch is damaged, resulting in the lifting relay can not be attached to the motor without power supply.

3. The rising button switch is damaged. 4. The rising relay is damaged. 5. Some hanging baskets with phase loss protection may also fail to rise if they lack phase.

6. Whether the limit switch is in poor action and contact; 7. Check whether the first contact is good, and if the contactor is interlocked, check the interlocking normally closed contact of the positive contactor.

The operating inclination angle of the hanging basket for high-altitude work should not be greater than 12 degrees. （）

a.That's right. b.Mistake.

Correct envy and answer: Duan Meng b

Carrying the maximum maximum limit of the working load weight.

Construction gondola hoist.

The brake is an important part of controlling the up and down movement of the gondola, which can make the construction gondola platform reliably stop in the working and tung position, or maintain or control the speed of descent during the descent process.

When the motor is connected to the power supply, the solenoid coil of the brake.

At the same time, the power is turned on, and the electromagnet is acted on by electromagnetic attraction.

Suction armature and compress springs, brake pads.

Disengage from the brake wheels and the motor runs. When the power supply is cut off, the brake electromagnet loses its electromagnetic attraction, and the spring force pushes the brake pads to press the brake wheel, and the motor stops rotating immediately under the action of friction torque.

It refers to the maximum limit of the working load weight of the lifting mechanism of the crane (including the weight of the hanging basket, the weight of the operator, the weight of the construction tools and the weight of the materials used in the construction, etc., which can not exceed the maximum limit of the working load weight standard requirements of the hanging basket).

When it comes to the lifting method of the electric gondola, we have to talk about the hoist of the electric gondola.

Category. First of all, we know that the electric gondola needs to use electricity to drive the hoist to complete the lifting, but there are two kinds of hoists for the construction gondola, namely the hoist of the winch type and the hoist of the lifting type.

The hoist has different lifting methods and different installation positions, so the two hoists have two different installation processes. The hoist is installed on the top of the building, and the boom is changed to a pulley for operation, and all the lifting is controlled by the controller on the roof. The lifting hoist is to install the hoist in the basket itself, install a boom on the roof building to support the whole weight, and finally the lifting can be completely determined by the construction personnel.

The lifting methods of the two kinds of gondola hoists are different, but at present, there are still a large number of hoists of the lifting type.

It is necessary to grasp the pertinence and feasibility of the plan, and not to talk about it in generalities. According to the characteristics of the project, the hanging basket should be selected, which can meet the construction requirements and ensure safety, and try to make the hanging basket cover the entire working surface without leaving dead ends. According to statistics, some accidents are caused by unreasonable configuration of electric gondolas.

When the Rieter electric gondola is parked in one place for construction, two wire ropes are used to obliquely pull the basket body on the left and right sides of the electric gondola basket to prevent the electric gondola from shaking greatly.

When multiple electric gondolas are in parallel construction, the electric gondolas are connected with wire ropes to enhance the overall stability of the electric gondola and reduce the shaking of the gondola.

The construction personnel of the electric gondola should slowly lift and lower the electric gondola to ensure the smooth lifting of the electric gondola.

Electric gondola is usually used to transport and load people or objects for high-altitude work in construction, so we should pay special attention to the safety of the equipment in construction, and the best way is the design of the construction plan. The construction plan is the premise of the smooth construction and is indispensable. In the scheme, there should be equipment selection, installation precautions, operation precautions, and dismantling precautions.

The contents of the electric gondola should be properly placed to prevent falling objects from injuring people and polluting the wall.

The electric gondola is a kind of equipment that we often use in high-altitude construction, and the use of the equipment is at high altitude, so we must pay attention to protecting it in ordinary times.

The corners of the electric hanging basket against the wall are wrapped with sponge to avoid scratching the wall or decorative surface of the hanging basket.

The electric gondola is lowered to the ground after the daily shift to prevent the electric gondola from scratching the wall when it is unmanned.

Contact the manufacturer for a detailed introduction.

With the gradual rise of various modern large-scale projects, high-rise buildings are lined up one after another. The high-altitude operation gondola has been more and more widely used, but the high-altitude operation gondola also has requirements for the application of the platform, only its platform meets the requirements, in order to improve the safety of the project, the following we mainly understand the requirements of the high-altitude work gondola on the platform:

1. The bottom plate of the gondola platform for high-altitude work must have anti-skid measures.

Second, it is necessary to check whether the bolts are loose or whether the weld is cracked, and the structure of the gondola platform for detecting high-altitude work should be able to withstand 2 times the rated load.

3. The quality inspection must be carried out on the weld of the main stressed component of the hanging basket platform to ensure that the weld meets the design requirements.

Fourth, the connection between the electric construction gondola platform and the lifting mechanism must be firm and reliable, without any loosening, and must be checked frequently.

5. The electric construction gondola platform must be equipped with a hook device for safety belts and tools.

6. The width of the minimum channel in the electric construction gondola platform should be greater than or equal to 400mm, and the effective area of the bottom plate should be greater than or equal to each person.

7. The bottom plate of the gondola platform must be equipped with a height greater than or equal to 100 150mm, and the gap between the baffle and the bottom plate shall not be greater than 5mm.

8. The normal operation device of the electric gondola platform should be installed on the gondola platform, and the electrical equipment that can be jogged and continuously pressed by hand and not affected by the weather should be selected.

9. The platform must be equipped with a fixed safety guardrail, the height of the rear side and both sides should be greater than or equal to 1100mm, the height of the side of the building should be greater than or equal to 800mm, and the guardrail should be able to withstand the concentrated load of 1000N horizontal movement.

The suspension of the electric gondola is the load-bearing part of the whole gondola, which is composed of adjustable front and rear brackets and three sections of detachable beams and counterweights. During operation, the operation wire rope and safety wire rope are suspended at the front end of the beam, and the operation channel of the electric hanging basket moves up and down along the wire rope through the hoist.

In this load-bearing chain, the sum of the working channel and the hoist is about 300kg, and the total weight of the operator and material is about 600kg. This stress point falls on two pins with a diameter of 16 mm. There is no problem with the weight of the two 16 mm diameter pins carrying the working channel.

And the wire rope that relies on hoist lifting is fixed on a pin of diameter 18mm on the front cross beam front end of suspension organization. This 18mm diameter pin is located above the load-bearing chain, and it is reasonable that its diameter is larger than that of the work channel. However, the pylon, which is fixed on the suspended beam, is supported by a general M14 bolt, and it is obvious that the strength of this stress point is problematic.

Looking forward from the load-bearing chain of the electric gondola of "Jinlida", the front beam sits on the front bracket of the hanging tissue. And the connection between the saddle of the front bracket and the front cross member is two M14 bolts. Some of the support of the front bracket is still supported by two M14 bolts.

If the bolts of each of the two M14 bolts of the front cross member and the front bracket can be evenly stressed, there is no problem on the entire stress chain of the electric gondola. However, due to the constraints of machining accuracy, the practical force of the bolts in these two places is only the load accepted by a bolt of M14.