Construction lifter for its construction work personnel and materials can be vertical transportation, greatly reduce the labor intensity of the construction personnel, effectively improve the production efficiency, has become indispensable in the process of high-rise building construction equipment protection.Properly installed and use of construction lifter, working in the production of as much as possible to find and solve problems in time, eliminate the hidden danger of accident in the embryonic stage, to prevent accidents, ensure the safety of the lives and property, has become the priority.This paper analyzes some common problems in steel track industrial turntables for mud slag car and use of construction elevator in shenyang elevator.

 

1. Analysis of safety technical points installed in the construction elevator.

 

1.1 firstly, we will briefly analyze the steel track industrial turntables for mud slag car environment of the construction elevator.Construction lifter as dual-use goods elevator, the steel track industrial turntables for mud slag car work must be south obtained disassembling qualification certificate issued by the construction administrative department responsible for the professional leagues, the steel track industrial turntables for mud slag car site to prepare various safety protection measures, construction lifter moving parts with buildings on the distance between the construction equipment not less than 0.25 meters.

 

1.2 secondly, we will discuss the steel track industrial turntables for mud slag car of main components of the construction elevator.The main points of this paper include the following aspects.First, the foundation with column height not less than 1.5 m. and should be equipped with interlocking device, mechanical interlocking should make hanging at the bottom of the cage, only in the specified location, foundation enclosure door to open, electric interlocking should make protective enclosure door open after the hanging basket stopped and can't start, not completely cut off the main supply, no one can be on top of the column, the fence off or by hand on the fence and in a shaft, guide pillar and unsafe area activities such as attached to the wall shelves.Second, when steel track industrial turntables for mud slag car and maintenance work is required on the top of the hanging cage, the surrounding height of the hanging cage shall be no less than 1.05m.Using the Settings in hoisting cage at the top of the derrick steel track industrial turntables for mud slag car work, the biggest boom lifting weight is 200 kg, does not allow overloading, hanging basket load does not allow more than rated installed capacity, installed on the derrick suspender, shall not start the hoisting cage, until all the connecting bolts had been fully tighten, and sling has risen from just installed on the standard section, to drive the crane cage.When the cage operation is driven, the operation box must be moved to the top of the cage. It is not allowed to operate in the cage. When the cage is running, the human body and the goods shipped must not exceed the cage guardrail.Thirdly, the stop layer should be set up to stop the railings, and the stop railings should not protrude into the hoisting way of the cage.The switch of the stop rail can be operated manually, but not directly controlled by the cage movement.Fourth, measures should be taken to prevent the heavy on the guide rail to move, the application of two or more than two pull rod will be to heavy fixed, for heavy rail should be straight, guide rail is apart from the deviation of 3 mm or less, for heavy rail should be strong, can withstand the corresponding additional stress, when hoisting cage stops in the compression bumpers in full.No less than 0.5m for free travel on top.

 

2. Problems and solutions during the steel track industrial turntables for mud slag car of the construction elevator.

 

2.1 protective layer door.In the process of the actual steel track industrial turntables for mud slag car, hope to reach its operating point hanging cage as soon as possible to the cause of the construction personnel and material, layer construction personnel often will the inside of the door inside the door had opened directly into the operation of the hoisting cage channel of construction lifter driver calls, sometimes mistakenly placed materials in the operation of the hoisting cage channel, this kind of phenomenon during the construction stage is especially rare.If construction lifter driver not taken, the hoisting cage running work extremely easy to enter the hoisting cage running within the channel personnel injury and cause material fell from the sky, endanger personal safety, which can lead to accidents.The common problems in the production and steel track industrial turntables for mud slag car of laminates are: a. The open and closed control mode of the door is not correct, and can be opened and closed by the personnel on both sides.B. using reinforced with simple processing and welding layer to make the door, lead to a hole is too large, door door inside layer of staff can be reached through the holes layer to the outer edge of the door locking device operation layer will open the door.C. The lock tongue of the door lock device is too short or with a simple clasp for locking, which can not be used to effectively lock and stop. The inner door can be easily pushed open by the inner door.

 

2.2 basis.In the process of steel track industrial turntables for mud slag car and use, there will be serious economic losses caused by the failure of the roof bearing capacity of the underground engineering roof.According to practical experience, when need to install the basis lies in the underground engineering item on the board, the first design should as far as possible make the foundation position in over main stress parts such as beam, column, secondly combining the civil construction drawing of the bearing capacity of the underground engineering of roof and construction lifter in full load under the most unfavorable working conditions, to ensure the bearing capacity of the underground engineering item plate meet the steel track industrial turntables for mud slag car requirements of construction elevator, prevent the construction lifter damage to the roof in the process of steel track industrial turntables for mud slag car and use.If the bearing capacity of the underground engineering roof can not meet the requirement of the bearing, you need to design for foundation reinforcement scheme, through the steel track industrial turntables for mud slag car of steel structure under the roof support and structure with the same method to improve the bearing capacity of the deck.

 

2.3 steel track industrial turntables for mud slag car problems and solutions of guide rails.When attached to the wall and attached the poles to the Angle is too large, attached to the wall between poles and guide frame formed an activity of ground points, attached to the wall unit, lost to effective guide frame set with Rachel.When construction lifter job due to the influence of the cage, the weight, guide frame will be along the local change of stress direction, often this will affect the stability and accelerate the guidance and guide frame transmission wear and tear of tao, that shorten the service life of equipment.Usually solve such problems can adopt the following methods: first, before installing the guide frame according to the structure of the floor elevation and section attached high, as far as possible the attached plane poles with the Angle of adhesion control within the scope of the standard.If part of the wall support bar is difficult to meet the requirements, it can be solved by properly adding a wall device.Second, combine the schemes are most attached to the wall with wall plane poles with the Angle of attachment is too big, due to the indirect with wall can be installed in any position with wall poles, this is indirect attached steel track industrial turntables for mud slag car method should be adopted to solve.

 

Construction lifter, as one of the main hazards of the construction site, should strictly implement relevant standards in the process of steel track industrial turntables for mud slag car and use and establish the corresponding management system, can effectively reduce or prevent the happening of the accident.