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Here is the content list:
What is the working principle of unfixing holding-latch hydraulic jack?
What are the characteristics of unfixing holding-latch hydraulic jack?
What are the possible faults and solutions in use?
What is the working principle of unfixing holding-latch hydraulic jack?
Hydraulic lifting device (package unit) is evenly distributed around tank inner wall. Tank top and upper (the first layer) wall plates are lifted first and then install and weld wall plates of tank body. Self locking hydraulic jack and hydraulic hoist composing of lifting frame and lifting rod are adopted. When oil enters hydraulic jack, upper clamp fastens and lifts lifting rod and expansion ring and mobilize tank (including tank top) to ascend upward. When oil returns to jack, upper clamp returns with piston and lower clamp automatically fastens lifting rod without gliding. The jack repeats the movement and make lifting rod ascend with tank to designated height (spare height for next layer of plate). After butt weld of next layer of wall plates, open upper and lower loosening device and loosen upper and lower clamp to make lifting rod and expansion ring descend to lower expanded and welded rib plate of the next layer of wall plates and then lift. Repeat the process and ascend welded tan till the last layer of wall plates are installed and welded. The installation of the whole storage tank is completed.
What are the characteristics of unfixing holding-latch hydraulic jack?
1.Hydraulic lifting is stable, safe and reliable. The system adopts uniform control and single or partial (several) adjustment can be realized, so the lifting process is relatively stable. Characteristics of unfixing jack determine its good self-locking performance, without tank or heavy object gliding or falling due to power outage, which ensures safe and reliable hydraulic lifting.
2.Construction quality is guaranteed. Lifting height can be precisely controlled because of adjustable function (slightly descending). Welding quality if rank is guaranteed for the reasons given above.
3. Equipment is easy for operation with good working environment and efficiency.
4. The equipment has good adaptability. This set of equipment is applicable to hydraulic lifting of large-scale storage tanks with various volumes ranging from tens of thousands of cubic meters only by regulating hydraulic hoist (unfixing jack, hoisting frame, lifting rod, etc.)
5. Hydraulic pump station can be arranged at proper position as per actual working conditions. For large scale storage tanks, hydraulic pump station can be placed inside the tank, outside the tank or space between two tanks (when one pump station controls two tanks installation) for construction control.
6. Hydraulic pump station has manual and automatic controls with apparent features as strong adaptability and good technical performance price ratio.
7.Short construction period, low cost and good economic returns. Due to high modernization of package unit and fast lifting speed, the unit has low construction cost and good economic returns. The techniques has such advantages as easier for centralized control, convenient operation, safety and reliability (no falling), precise control of weld clearance and lifting height, which guarantees project quality, saves labor and reduces cost with remarkable economical benefit.
8.Unfixing jack is widely used in project installation due to its scientific structural design. The jack is composed of upper clamp, oil cylinder, lower clamp and support. Upper and lower clamps are equipped with self locking device. Upper clamp automatically locks lifting rod when oil cylinder ascends and lower clamp automatically loosens. During stroke return, upper clamp loosens and lower clamp locks lifting rod, thus, lifting rod cannot descend and lift heavy object to designated height step by step. The heavier the object is, the tighter the locking device locks. Heavy objects will not fall even during sudden power cut or oil pipe burst. This lifting mode is proven to be safe and efficient with low cost compared with pneumatic jack, big stroke jack and high altitude stranded wire lifting. These modes are not comparable to unfixing jack in terms of safety and practicability and it is the optimal product and installation for substitution. Unfixing jack is rapidly developed and applied in inversed lifting installation of storage tanks, power plant absorption tower and stack steel lining. This jack has slight descending function, which is convenient for plate to plate butt weld. As long as chaining fixing of support and lifting point are sufficient for bearing object load, the jack can lift object to designated place safely and efficiently.
What are the possible faults and solutions in use?
Faults | Possible causes | Solutions |
The jack cannot lift or lifting stroke is inadequate | 1. Lifting rod is partially deformed or inclined | A. Shake or vibrate lifting rod prior to lifting. B. Replace or adjust lifting rod straight |
2. Upper and lower oil path is mistakenly connected | Connect oil path as specified. | |
3. Upper and lower clamp block teeth are severely worn. Clamp block support is damaged or spring fatigued or lost | Replace clamp block, base or spring | |
4. Backspring fractures or severely deforms | Replace backspring | |
5. Insufficient oil supply pressure | Adjust working pressure of oil pump | |
6. Heavy load | Take measures to decrease load or add jack | |
7. Jack piston seal is damaged | Replace damaged seal ring | |
Oil penetration or oil leakage | 1. Seal element is damaged, severely worm or invalid for aging | Replace corresponding seal element. |
2. Cylinder galling | Repair or replace cylinder | |
3. Loose connection or damaged seal element | Fasten connection thread or replace corresponding seal element | |
Oil leakage at quick coupler | Coupler or O-ring damaged | Replace coupler or corresponding O-ring |
Stepping up failure | Reversed rotation of motor | Adjust motor rotation direction |
Solenoid valve fails | Check and replace new solenoid valve | |
Low oil level | Replenish hydraulic oil till surpassing red scale | |
Oil pump severely damaged or worn | Replace oil pump |
Above, we introduced the principle of hydraulic jack, characteristics and possible problems and solutions. I believe you have a more detailed understanding of the hydraulic jack. When hydraulic jack homework need the cooperation of all parts, any accessories problems may make hydraulic jack cannot normal use, therefore, to know hydraulic jack structures not only help us to understand the principle of it, will also help us in a timely manner when it fails to distinguish and confirm fault promptly eliminate, can let hydraulic jack to provides us with better services.
Welding machines refer to electrical appliances that provide power with certain characteristics for welding. Tank welding machines are widely used in various industrial fields, such as aerospace, shipbuilding, and automobiles due to their flexibility, simplicity, convenience, firmness, reliability, and strength even after welding. So how do we use the tank welding machine?
Here is the content list:
l What are the classifications of tank welding machine?
l The main features of tank welding machine.
l How to use a tank welding machine?
What are the classifications of tank welding machine?
There is no authoritative classification method for the classification of tank welding machine. The following classification is mainly based on the simple classification of the industry use on the market:
1. The tank welding machines mainly used by industrial and mining enterprises are: AC arc welding machine, DC electric welding machine, argon arc welding machine, carbon dioxide shielded welding machine, butt welding machine, spot welding machine, submerged arc welding machine, high frequency welding machine , Flash butt welding machine, pressure welding machine, butt welding machine, laser welding machine, AC welding machine and DC welding machine
2. There are two types of DC tank welding machine: one is to install rectifier components on the basis of AC motor, and the other is DC generator. DC welding machines mainly weld non-ferrous metals and pig iron. The AC welder mainly welds steel plates.
3. Argon arc welding machine, carbon dioxide protection welding machine, high frequency welding machine, flash butt welding machine. The argon arc welding machine and carbon dioxide shielded welding machine can mainly weld thin plates and non-ferrous gold layers below 2mm. The flash butt welding machine mainly connects copper and aluminum joints and other objects, and the high-frequency welding machine mainly welds steel pipes in the pipe factory.
4. Submerged arc welding mainly welds thick steel structure materials such as steel structural parts, bridge H steel, and I-beam beams.
5. Gas shielded welding: argon arc welding, carbon dioxide shielded welding, will not be oxidized when welding under the protection of gas, melting welding is firm, non-ferrous metals, thin materials can be welded.
6. Laser welding machine: can weld the leads inside the transistor.
7. Butt welding machine: the iron ropes and other objects on the anchors of the cable chain factory are mainly welded. It can be docked with Yuangang etc.
8. Multifunctional tank welding machine.
9. Spot welding machine.
10. Butt welding machine.
11. Bolt welding machine.
12. Carbon dioxide and ammonia gas welding machine.
The main features of tank welding machine.
l Reasonable design and free adjustment. Tank welding machines with different discharge frequencies can be selected according to different metal materials to achieve the best repair effect.
l The heat affected area is small. There is no heat input during the instant of cladding, so there is no deformation, undercut and residual stress. No partial annealing will occur, and no need to re-heat treatment after repair.
l The impact of tank welding machine is extremely small. The welding machine overcomes the impact of ordinary argon arc welding on the periphery of the work piece in the welding repair process. It is also possible to repair the work surface with no allowance.
l High repair accuracy. The surfacing thickness ranges from a few microns to a few millimeters, and only needs to be polished and polished.
l High welding strength. Due to the full penetration of the material on the surface of the work piece, a strong bonding force is produced.
l Adopt ring precision control.
How to use a tank welding machine?
l Check the connection
After completing the wiring of the tank welding machine, you must check each installed connector to confirm that it is well connected before starting to operate the equipment. Its contents include:
1. The line connection is correct and reasonable, and the grounding must meet the specified requirements
2. The magnetic work piece gripper shall not have attached metal particles and splashes on its contact surface;
3. The coiled welding cable should be unrolled before use to avoid overheating and insulation damage;
4. When it is necessary to alternately use different lengths of cables, insulating joints should be provided to ensure that useless lengths can be disconnected when not needed.
l leakage
There must not be any leakage of cooling water, shielding gas or engine oil that affects the safety of welders.
l Work suspension
When the welding work is suspended (for example, during breaks), the output terminal of the equipment or welding machine must be turned off or the power supply must be cut off.
l Mobile welding machine
When you need to move the tank welding machine, you must first cut off the power supply at its input end.
l Equipment not used
The metal electrode and carbon electrode must be removed from the welding tongs when not in use to eliminate the risk of electric shock to personnel or conductive objects. The welding tongs must be placed out of contact with persons, electrical conductors, flammable objects or compressed air bottles when not in use. The welding torch of the semi-automatic welding machine must be properly placed when not in use to avoid accidental activation of the gun body switch.
l maintain
All arc welding equipment must be maintained at any time and kept in a safe worki
Tank advanced hydraulic jacks refer to the container used to store the oil required to ensure the operation of the hydraulic system. According to whether the liquid level of the fuel tank is connected to the atmosphere, the fuel tank can be divided into two types: open type and closed type. The hydraulic oil tank lifting device plays a vital role in the transportation of tank advanced hydraulic jacks.
Why are more and more people choosing hydraulic storage tank lifting equipment?
What are the characteristics of the overall construction of the type advanced hydraulic jack?
How does the type advanced hydraulic jack work?
1. The oil cylinder adopts a high-pressure hose, which avoids the common oil leakage phenomenon of traditional multiple hoses. The cylinder will return to its original state by its own weight;
2. The hydraulic cylinder stroke is different according to the width of the fuel tank plate, which can meet the one-step lift of each annular shell plate. Greatly reduce time waste;
3. The basic height of the hydraulic cylinder is subject to the width of the tank shell. It can be equipped with an automatic girth welding machine for inner girth welding;
4. Modular configuration, the number of jacking systems can be adjusted according to the size and weight of the tank;
5. High efficiency, it only takes about 15 minutes for each lift or drop;
6. It can be well-matched with our tank welding machine, which can greatly reduce labor costs and construction time.
The overall structure of the equipment
1. The equipment is evenly placed in the lifting tank. The overall force and lateral force of the equipment have been strictly calculated and the application has been successful.
2. The structure is rigorous and compact, the output force is adjustable, the jacking speed meets the jacking requirements, and the synchronization accuracy is high.
The power transmission of type advanced hydraulic jack: hydraulic cylinder output force → steel wire rope → lifting ring (welding lifting lug) → force transmission rib → tank wall lifting
Work jacking control process of type advanced hydraulic jack:
1. Pump station control box (rotary selection button) → centralized control operation box → hydraulic jacking pump station (valve group electromagnet) → PLC device → centralized control operation box → hydraulic jacking pump station → overall or partial hydraulic cylinder lifting .
2. Pump station control box (rotary selection button) → control handle → hydraulic cylinder (single or multiple) to fine-tune up and down.
So we can see the irreplaceable role that type advanced hydraulic jack has played in our daily life and industry production. WINCOO ENGINEERING CO., LTD, a Chinese pioneer in type advanced hydraulic jack, understands that each application is special. Our knowledgeable staff can find the best solution for any scenario, particularly when a custom product is required. We work with customers from design to completion to ensure that all technical requirements are met.
The application of steel in engineering, construction and life is more and more, and most of the time it needs steel of various shapes, such as rectangle, round, or other shapes. At this time, professional steel cutting machines are needed. Today we introduce to you is dedicated to the factory cutting machine.
●CNC Flame Cutting Machine
●CNC flame & plasma cutting machine
●CG Multi-head strip cutting machine
●XCF-1200 portable digital control flame cutting machine
Standard configuration is 2 CNC cutting torches and 9 strip cutting torches, also can special design according to customers’ requirements. With auto-ignition,auto-lifting,auto-piercing,auto-cutting,powder-spay,printing,cooling with water, re-cutting, dynamic graphic-tracing display, auto-height control for torch as options. Closed loop control for servo system. No clearance transmission for gear and gap, and with automatic acceleration and deceleration, cutting sequential control, art parameters set-up and kerf - compensation function.
CNC flame & plasma cutting machine is a kind of high-efficient and high-precise multi-head cutting and transverse straight-end cutting, and it also can do other geometric shape cutting. The gantry type structure design can ensure the high strength and rigidity. It equipped with Japanese Panasonic full-digital AC servo driving system and German Neugart reducer, it runs steadily and cutting with a high precision.
This kind of machine is adopting oxygen gas supply with high efficiency; it can be designed with different number of cutting torches according to customer’s requirement. It can process several plants in one time, with the function of longitudinal multi-head cutting and transverse straight-end cutting. Equipped with imported transducer to stepless speed adjustment, the adjustment range is large and it can move safety.AC frequency conversion governor or AC servo is adopted in driving system.
XCF-1200 can cut not only manually as a semi-automatic car but also automatically. It is the portable type when the cutting range is within 1200mm.It likes the gantry type digital control cutter to cut any complex plane figure. It is mainly used for flame cutting as well as may be configured the plasma cutting. The vertical guide of the main machine adapts the imported precision double axis straight line guide; the horizontal guide is made of the precision transmission system and the aluminum alloy sections with stable transmission and high precision. The CNC control system which is produced by Sino-US joint venture has the advantages of high reliability and strong anti-jamming, it is easy to master jacking programming. It can do either the manual programming for the simple figure or the automatic jacking programming for the complex figures.5.7 inches LCD, so it is visual and easy to learn. The machine is widely applied to plate-cutting of manufacturing industry such as automobile, shipbuilding, engineering machinery, petrochemical industry and pressure vessel etc.
The above is our WINCOO several cutting machine types, the specific product content welcome you to enter our website to browse.
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