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

In the cement and other building materials enterprises

In the cement and other building materials enterprises, has been widely applied electric hoist. Grinding machine parts electric hoist sliding failure occurs frequently, to inconvenience inspection work. Now XianRong a simple and practical design of electric hoist line installation method. Electric hoist is installed in the cement and other building manual hoist enterprises, has been widely applied electric hoist. Grinding machine parts electric hoist sliding failure occurs frequently, to inconvenience inspection work. Now XianRong a simple and practical design of electric hoist slip line installation method.
1. Electric hoist is installed on the u-shaped track. In view of this characteristic, we put the wire in the middle of the track, upper joist. Wire rope using vertebral 10 mm or round hoist equipment wire rope, end with a flower basket bolts.
2. The slip ring for two ring clasp, have certain allowance, in order to avoid wire scratch CARDS. To ring for two rings bolts connected, free to roll.
3. Turned to a ring set on the wire at one end and leave a good motor lead rubber sleeve after fixed in turn ring bottom line. Then put multiple slide rings to wear on the wire at one end, and the rubber sleeve fixed in the slip ring bottom line segments. Front end to motor, are free to roll. After the termination on the power supply.
4. Under the traction of the motor to turn to ring for the central, traction rope make linear or circular motion. 5. Keep track of the above methods may be adopted.

Ring electric hoist loading test system hardware design

Ring loading test system hardware design of the electric hoist lifting equipment manufacturing industry in our country, the electric car type ring chain manual hoist hoist electric hoist limit load point of the system mainly includes a hydraulic loading system (hereinafter referred to as ring electric hoist) is a new kind of small-sized lifting products, it has a volume and a single-chip microcomputer control system. Small, light weight, high strength, appropriate price etc, especially suitable for low building height as shown in figure who, hydraulic test system for limit load experiment, the hoist equipment pressure under the small flow pump and the space is lesser workplaces of lifting and handling operations. Work, overflow valve manually adjusted to the rated pressure, according to two different series of common inspection method on the properties of ring electric hoist crane is mass loading the product choose three four-way valve gate, the overflow valve pressure oil flow method, which includes static and dynamic load of two processes: a pilot proportional relief valve. In ring electric hoist is not ascension, limited to the products tested to 1.5 times the rated load experiment belongs to dynamic loading, the loop electric hoist ascends, conditioning section leads people weight blocks, the quality of stay for a few minutes, to determine its static performance. Proportional relief valve from the rated load strength, step by step until the ring electric hoist electric hoist inner ring.

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.

Is a wire rope (rod) deep processing products

Made up of many wire twist into a rope used in industry, widely used in all kinds of industrial, mining and transportation. There are many different kinds of steel wire rope, but used in oilfield is a round rope, only have a single or double twist twist, and in the majority with double twist. Double twist rope is wire twist into a, again by a few strands twisted into a steel wire rope, wire rope at the center of both  core, there is also a steel core. With several root manual hoist section shape and the diameter of the wire, according to certain rules as twisting spiral wire bundle. Is a wire rope (rod) deep processing products, in steel wire products occupy a larger proportion. Origin, development and current hoist equipment in the steel wire production before using the hemp rope and chain, was later by organic fiber and metal chain to rub into the low tensile strength of the rope. With metallic ore and coal mining and transportation in the elevator with the development of the hoist machinery, the rope can not meet the requirements, began to replaced by metal wire twist twist wire.

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.

Electric hoist electric hoist for short, is a small light lifting equipment

The tonnage of steel wire rope electric hoist is 0.5 T/T 1/2 T / 3 T / 5 T/T/T/T, 20 16 it is the standard of wire rope in meters 18 June 12 M/M / 9 M/M / 24 M / 30 M. It is also manual hoist into which CD1 and MD1 type (single speed) type (double speed), the following for the operation of the wire rope electric hoist speed: 0.5 T - 5 T T T 16-20 T single speed: 8 M/MIN single speed: 7 M/MIN single speed: 3.5 M/MIN speed: 8 M/MIM, 0.8 M/MIN, double speed: 7 M/MIN, 0.7 M/MIN double speed: 3.5 M/MIN, 0.35 M/MIN. Electric hoist electric hoist for short, is a small light lifting equipment. Most electric hoist equipment used by people follow the manipulation button in the ground, or can be in the driver room controlling or use cable (wireless) remote control.

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.

Lever hoist wire rope machine chassis high strength high quality aluminum alloy die-casting

Lever hoist wire rope machine chassis high strength high quality aluminum alloy die-casting, supporting the use of wire rope has a particularly high breaking force and abrasionmanual hoist, according to the customer need to hoist equipment the appropriate length of wire rope. Mainly to a 800 kg, 1600 kg, 1600 kg.

Loader transmission system and hydraulic system

Because the loader has operation speed, high efficiency, good maneuverability, the advantages of convenient operation, so it become one of the main models of the conditions in the construction of engineering construction. manual hoist paper introduces the common several kinds of loader working device and working steps, also introduces the loaderhoist equipment system and hydraulic system.

Construction engineering machinery and equipment

Wire rope manual hoist belongs to special lifting equipment, has a compact structure, light weight, small volume, parts versatility, convenient operation. It can be installed on the i-steel alone, also can form a complete set of installation in the electric or manual single-beam, double beam, cantilever, such as gantry crane. Is mainly used for all kinds of promotion, moving, loading and unloading heavy weights, tank inversion welding, such as a hoist equipment of large and medium-sized concrete, steel structure and mechanical equipment installation and moving, applicable to the construction and installation company, factories and mines of civil engineering and bridge construction, electric power, shipbuilding, automobile manufacturing, construction, road, bridge, tunnel, metallurgy, mining, slope protection infrastructure projects such as shaft governance of mechanical equipment.

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.

Proper maintenance of wire rope pulling hoist tips

Wire rope pulling hoist lifting equipment is widely used one, there are lifting, pulling, tensioning three functions, high safety factor, long service life. Good maintenance methods help to prolong the life of lever  manual hoist .
So how to better maintain the wire rope pulling hoist, the following points for you, I hope for your help:


Wire rope pulling hoist maintenance

1, each job is completed, we must first wipe the loose end of the rope on the adhesion of mud,lift hoist dust or grease, loosen the jaw, out of wire rope, wire rope sequence will gather around the shelves, and wipe the length of wire rope, wire rope stored in dry place to prevent corrosion.

2 year deal at least four times a gourd maintenance treatment, such as diesel cleaning parts, and calcium-based grease lubrication.

3, when the internal movement poured into the mud, cement or other dirt, use a rinse, then clean diesel; cleaning, dry calcium-based grease on the grease; finally release the jaws,wire rope winch wipe with a clean cotton pliers mouth of grease and moisture.

4, when the jaws wear, carrying capacity is less than 80% of rated load, replace the jaw; when the wire rope diameter is reduced 10%, the rope should be replaced

Proof chain hoists maintenance skills

Proof chain hoists as a variety of flammable and explosive environments more specific proof of a lifting tool, its daily maintenance and maintenance are particularly important:
1), the proof  chain block   and driving after use, should pay attention to clean hoists and monorail car explosion dust on some miscellaneous debris, and promptly coated with anti-rust oil, stored in a dry place to prevent rust and corrosion from moisture .


2), the daily checks and more should pay attention to maintenance, maintenance and repair should be familiar with chain hoists and driving agency personnel, non-performance of the machine do not understand the principle of free disassembly. Cleaned with kerosene or other media-proof chain hoists and other mechanical parts, gears and bearings in the rotation or friction parts, filling grease lubrication.
3), the assembly, the proof  manual hoist  lifting around sprocket roller bearings, can adhere to the butter has been pressed lifting sprocket mounted on the inner ring of the bearing journal, and then into the wall of the bearing outer ring inside.
4), proof chain hoists brake friction surfaces must be kept clean. Brake parts should be inspected regularly to prevent brake failure occurred weights from falling accidents.
5), the installation brake parts, pay attention with the pawl ratchet pawls engage alveolar good spring pawl control should be flexible and reliable, installed after the chain started, bracelet wheel clockwise, it will be a ratchet, pressed on the brake friction plate seat,wire rope winch counterclockwise rotation bracelet wheel, ratchet gap should be left between the friction plate.
6), and explosion-proof chain hoists TROLLEYS (small car) After cleaning and maintenance after the load test should be carried out and glide down experiments confirmed working, reliable braking before delivery.

Use explosion-proof chain hoists inspection before

1 explosion-proof  chain block   chain lubrication before using hook method to squeeze into the oil, oil-based lubricants name is calcium; biannual lubrication time.
2, the proof chain hoists lifting parts before checking intact, transmission parts and lifting chain oiled, idling normally.
3, lifting chain surface if worn, scratched traces strictly prohibited.
4, proof chain hoists lifting heavy objects when operating from the ground to try to check the work before it can continue normal operation lifting.
5, explosion-proof chain hoists rise and fall distance must not exceed the height marked to prevent damage to components.
6, Do not use non-manually driven  rope hoist  lifting heavy objects, if not pull movable weight situation, not afterburner.
7, proof chain hoists should check whether other heavy weights have been implicated, the weight is beyond the rated capacity, hoist parts for damage or other abnormal conditions.
8, the operator standing ban on the operation of  manual hoist  lifting weights, weight lifting may not be vacant after leaving the job site

Steel cord before using the hoist installation and commissioning

Electric wire rope hoist  before use in order to ensure safe use, customers also need to make simple commissioning work, the following details for you:
Electric wire rope hoist components are: motor, transmission, drum and rope four parts. The position of the motor and the roll can be divided into four types, different types have their advantages and disadvantages.
(A) motor axis is perpendicular to the axis of the hoist drum worm gear used, the width large size, structure is more cumbersome. This structure appears early in love, has no such type.
(2) The motor axis parallel to the roll axis, this structure is the biggest advantage of the electric hoist height and length dimensions. Disadvantage is the width dimension, manufacturing and assembly of complex, large orbital turning radius is large.
(3) motor mounted on the inside of the wire rope  manual hoist  drum hoist, the length dimension is small, relatively compact structure. But the motor heat is not good, if there are problems inspection, installation, maintenance, motor is not easy.
(4) motor mounted on the outside of the drum hoist, this way, to change the motor heat is not good for a big disadvantage, but also more convenient installation and maintenance easy. But the length of the large size, is not suitable for places where space is limited.
Electric wire rope hoist installation should pay attention to the following aspects:
Electric wire rope hoist mobile use of the track, I-beam by the user according to GB706-88 standard design of their own choice. Install a small car to be adjusted by adjusting the washer to ensure the orbital rim 3 ~ 5mm gap between the edge of the can.
Fixed hoist should be installed to ensure proper security methods, cage safe and reliable.
About electric hoist electrical installation, please refer to "steel cord electric hoist for Circuit" to install appliances.
Off the fire stopper is adjusted by adjusting the stopper rod two hit the block to achieve, loosen the screws on the block hit, hit the block divided into guide rope on both sides of card board,load chain card board can move freely promote collision block . Start the motor starts to lift, push cap-bit card board hit the block moves, rose to hook pulley shell casing along a distance roll under 150mm ~ 50mm, stop up, move down buttons, rope guide moves back 10mm or so, Move down hit the block near the upper limit card board, tighten the bolts can be.

Tight line usage and Scope

Tight line is mainly used in the construction of overhead lines taut conductors. According to the material is divided into ordinary tight line and aluminum tight line,manual hoist tight line today to introduce you to using methods and scope of application.

Aluminum tight line to use:
Use hand lever handle, drive ratchet, turning spool in order to achieve taut rope. Need to relax rope, just flip the paw handle, stop paw spring tension, the rope can be pulled free.
Use ordinary tight line
When used on the first tight line or galvanized wire rope loosen, and fixed in the cross arm with clamp pliers clamp the wires, and then pulled the special wrench. Since the anti-reverse pawl role gradually rope or galvanized iron wire on the ratchet cylinder, the wires tightened. To tighten the wire fixing the insulator. Then loosen the pawl release the rope or galvanized wire, then release the clip pliers,hoist and trolley and finally the wire rope or galvanized iron wire on the ratchet drum.
Scope:
Tight line for automotive load boilers, steel, wood, bamboo, wool textiles, heavy machinery and other goods essential vehicle tied tight, locate special tools, but also for the temporary lifting of large mechanical equipment installation, car crater traction, wood, bamboo bale, etc. combined tool bar row. Tight line applications: buildings, roads, bridges, metallurgical, mining,lever hoist wells and other infrastructure construction management protection of mechanical equipment, can improve the process of lifting cargo security.

Concerning the technical specifications of wire rope hoist

CD  wire rope hoist  frequently used as a small lifting equipment technical specifications more stringent Next introduce the details of technical specifications, allowing you to hoist its interior there is a general understanding.
       1, wire rope electric hoist three-phase main circuit rated voltage, rated frequency is 50Hz, the working environment temperature (-25 ~ 40) ℃.
       2, electrical, electronics, buttons, switches and other protection shall comply with GB / T 4942.1 and GB / T 4942.2 in IP54 requirements.
       3, for lifting the molten metal is used, fragile, dangerous items such as wire rope electric hoist,manual hoist lifting mechanism working level should be raised, and to add the necessary safety precautions.
       4, electric hoist temperature insulation resistance value is not less than 1.5MΩ, ground connection resistance value is not greater than 0.1Ω.
       Precise technical specifications for the use of lifting equipment to improve the safety and security of the technical specifications for the wire rope hoist part of the contents,manual block if you have any questions please call the hotline inquiries.