Qingdao Lee Chang- lifting machinery to wire rope winch out safety checks

Recently, the Qingdao Municipal Bureau of Quality Supervision Bureau , Lee Chang combine crane safety inspection activities carried out within the city , to take effective measures , to carry out special work of lifting machinery , and achieved remarkable results . It is reported that Lee Chang Branch has established a special crane safety chainb lock work leading group , Wang Bin , deputy director of the Bureau of the head of the relevant department in charge of human members , to develop a specific remediation program and held a lifting machinery installation, repair , transformation unit and key people responsible for the use of the topic will be on the remediation work for manual hoist deployment and scheduling, to ensure safe use of lifting machinery . The inspection focused content is one , in the case registered by lifting machinery ( including mobile crane ) , the periodic inspection and test cases found in the rectification of the problem ; 2 , cranes are manufactured and installed by permission qualification units ; 3 , the operating personnel are certified to operate, whether in the period ; 4 , lifting machinery to establish and improve the implementation of the use of units and special equipment safety management system . During the inspection, with a focus on the sort of focus on lifting machinery monitoring unit one by one , with gold online data verification , focusing on the regulatory filing individually lifting machine operators to ensure that gold online data adequately reflect the real device operation. Meanwhile, troubleshooting , monitoring inspection found , track and implement improvement on overdue rectification or rectification is not completed , according to the " Regulations on Safety Supervision of Special Equipment " , " crane safety monitoring requirements " and other relevant provisions dealt with .

Crane characteristics

Crane characteristics
Lifting weight of up to 2000 kg, a chainb lock of models and span orbit
, prefabricated modularization design is standard for extension and move more easily
15 cm thick, can be installed in any ordinary reinforced concrete on the ground
Enclosed track design can reduce the contamination of dirt and dust
Rigid fixed rail is more conducive to load location
, a high strength light weight high precision cold rolling forming of rails, rolling surface smooth, reduce the resistance of car manual hoist
, applicability is wide and can be applied in a lot of material handling environment
For a single unit of work, very affordable
Installation of portable, reduces the installation time and cost
The satisfaction of all, can increase the operating personnel
, realize safe operation environment
By improving the production efficiency, can realize fast return on investment

Electric hoist and electric hoist crane

Electric hoist and electric hoist crane is widely used in national economic sectors of simple lifting equipment. Production this kind of equipment in our country has more than 20 years of history, in recent years under the joint efforts of all brothers factory, successfully trial-produced the CD, MD, a new series of electric hoist, our factory also manufacture into a new type electric hoist single-girder crane. In foreign countries, because this hoist equipment of device has simple structure, cheap, wide range of use, also a lot of new products. Below we know parts of it are briefly introduced. Abroad situation of west Germany chainb lock company P type electric hoist in the form of electric hoist double beam crane has developed to a weight of 63 tons, the specific structure of the electric hoist has some local improvement. Significant improvement is its operation device. Figure 1 is the operation of the improved system diagram. Can be seen from the diagram, the new operation unit is both sides of the operating device is driven by an electric motor, it can avoid running twist phenomena caused by drive only one side. At the same time, it went round big board is made of pressed into thin steel plate, than in the past, the steel weight and ease of processing.

Lever hoist is a kind of hoisting wire rope drawing tools

Lever hoist is a kind of hoisting wire rope drawing tools, when working by hand pull (handle, alternative action by rocker, connecting rod in the clamping mechanism, driving load forward or backward. Because there is no brake lever hoist wire rope, so the clamping mechanism is grasping mechanism brake mechanism, is the key to this kind of product. Design lever hoist wire rope, the main problem is the design of clamping mechanism is calculated. Since there is no uniform design specification, we are updated according to many years of three generations of the product design, test and manual hoistexperience, the design and calculation method of the following are put forward. These data and the method also can be used for reference in the other wire rope in the design of clamping mechanism. A basic size, clamp, clamp plate calculation of the clamping lever hoist mechanism by the clamp, the clamping plate and pin shaft with clamping plate connections side panel, etc. Pull (forward) the handle, the size of the connecting rod drives the side panel for chainb lock motion, a pair of side panel, the other a pair of side plate back; Forward that lateral plate clamping plate.

mainly used to lifting crane equipped with

Into items, it is mainly used to lifting crane equipped chainb lock appropriate spreader can also after lifting material and liquid material. Crane work is characterized by intermittent movement, that is in a working cycle, to pick up, transport, unloading corresponding mechanism is work alternately. The agencies are often in starting, braking and running manual hoist condition of the positive and negative direction. The classification and features of the crane crane according to the structure classification according to the structure is divided into boom crane type crane and bridge type crane. Crane overview the status quo of hangzhou a manufacturing unit with an electric hoist bridge crane load across a runtime easily occurs in the car derailment problem, the crane lifting weight of 10 (t vice hook for 3 t), lifting height of 8, to 28 m span, the car track is 1600 m, work level for A4, no machine design. The crane has been in operation for more than five years, usually use frequency is higher.

Wire rope electric hoist rope guide

Wire rope electric hoist wire rope electric hoist on the guide rope device for wire rope by the regulation on interval neatly around the drum gear. When the hoist equipment rope device on the drum synchronization with wire rope winding cannot be moved, often guide rope is pulled bad, the phenomenon such as connecting rod were bent. The guide rope device breakdown can make the guide rope device cannot perform the function of the rope, rope pressure, at the chainb lock time may cause height limit is invalid, lead to a lifting accidents. Repair damaged when the guide rope device, replacing arc clamp is very troublesome, and have a certain risk. In this case, the author using TRIZ theory analyses the steel wire rope electric hoist rope guide, gives the solution, and the solution added TRIZ invention principle in the database at the same time. Electric hoist can be used as a heavy equipment used alone, a small driving after also can be used for overhead monorail crane. Is a kind of compact structure, light weight, high efficiency and easy operations of lifting equipment. Specifications of wire rope electric hoist by building height, track type type can be divided into 14 types. Its appearance figure is chosen, and work performance. Type electric hoist wire rope electric hoist the code and the type code of another type of HSG standard building height, linear rail, rigid connection of hand trolley.

Hand chain hoist is a kind of small manual lifting tool

Hand chain hoist is a kind of small manual lifting tool. Safety, light weight and convenient operation is the goal of the chainb lock of the product. To achieve this goal, according to the characteristics of the chain product structure, reasonable design of the gear is especially important. At present, the chain in gear, mainly is the involute spur gears. Reasonable design of this kind of gear is still the focus of the improvement of involute gear tooth profile, because it is the factors affecting the service life of bearing capacity and the use of involute gear is one of the most main factor. From the manual hoist practice and theoretical analysis shows that the reasonable selection of tooth profile Angle, transition radius and addendum higher tooth shape parameters, the comprehensive improve the bearing capacity and service life of the involute gear has a significant effect. According to the tooth profile Angle, selected a reasonable transition radius and the addendum higher combination parameter, manufacture special gear cutting tools, in the gear processing, is still very economic, the chain of low-value products especially for. Therefore, this article through to the different tooth profile Angle, the transition radius and addendum higher gear tooth profile parameters on the performance analysis and comparison, choose the reasonable parameter values and their combination, as a practical design chain drive gear recommended value.

Also called the fairy gourd, jin does not fall

Also called the chainb lock gourd, jin does not fall, manual hoist is a kind of simple to use, easy to carry the manual hoisting machinery, also known as the "chain hoist" or "chain". It is suitable for small short lifting equipment and goods, the weight is generally not more than 100 t. Shell manual hoist is high quality alloy steel chain, strong wear resistance, high safety performance.

Wire rope electric hoist

Wire rope manual hoist is a small-sized lifting equipment, steel wire rope electric hoist with compact structure, light weight, small volume, parts versatility, convenient operation, it can be installed separately on the i-steel, also can form a complete set of  chainb lock in the electric or manual single-beam, double beam, cantilever, such as gantry crane.

Electric hoist can be used alone not only, still can work with gantry crane and other large equipment

 

Stage electric hoist can be used more than one at the same time as well as group of crane electric hoist can be used to control cabinet control at the same time

Electric hoist is not only can be used alone, can also work with gantry crane and other large equipment, in addition, there are more than two ring chain hoist can be used for lifting heavy things work at the same time, the hoist is called "synchronous electric hoist.

Said to use at the same time, many in the industry will first think of group of crane electric hoist, it is a low speed chain electric hoist, because have the lifting speed is slow, smooth operation, the body is light, machine wear characteristics such as small, group of crane hoist is widely used to climb in the field of chainb lock engineering, the ascension of climbing form, large oil tank group of cranes, etc. Use in large oil tank welding, and other fields, can choose according to the size of the tank volume is more than one hoist are used together, and use the control cabinet and unified control.

Except DHP were studied.the optimum hoist equipment can use synchronous lifting hoist, electric hoist stage can also be used at the same time, more like the group of crane electric hoist can be used to control cabinet control at the same time, the stage one of the advantages of electric hoist is not only can use, are hung down can also lifting heavy objects. Stage up to 38 m electric hoist hoisting height, the chain all through galvanized processing, not easy to rust, lubrication oil in a gear box, effectively prevent the oil droplets to infiltrate the stage. Not only beautiful and durable, so the construction of the stage and theatre, everywhere.