Routine maintenance of hydraulic jack- Factory Suppliers Manufacturers From China

Since entering Chinese market for more than 10 years, products of Wincoo Engineering Co.,ltd has been sold in nearly thirty provinces, cities and autonomous regions in China, and some overseas markets. The company has production line of advanced technology; meanwhile, Wincoo Engineering Co.,ltd designs, develops and processes products for famous domestic installation companies. With professional team, strict management and excellent equipment, the company strives to create the brand of "WINCOO", hydraulic hoist and series supporting products. As an expert of hydraulic hoist, WINCOO with charm of high technology is keen, innovative and forging ahead to establish design language of the company. In an all-inclusive and absorbing and open-minded manner, the hydraulic hoist and hydraulic pump station are perfectly combined to form hydraulic lifting equipment (hydraulic jack). As the founder and disseminator of hydraulic hoist, WINCOO has been building the inverted hydraulic jack and production technology of installation engineering for a long time.We are going to explain how to use the hydraulic jack safely.

●Safe operation code of hydraulic jack

●Precautions for the use of hydraulic jack

●How to repair and maintain hydraulic roof in daily use

Safe operation code of hydraulic jack

1. Hydraulic lifting equipment must be operated by specialized operators;

2. Ground wire must be installed for hydraulic pump station;

3. Check whether motor is rotating in pump indicated direction after startup; motor for this equipment is step-down startup with six second interval. Supply oil for jack after full start of the motor; exhaust air in system via exhaust valve before lifting;

4. Rated pressure for hydraulic system is 25Mpa and pressure indication of pump station pressure gauge cannot exceed 26Mpa;

5. Check clamp block of upper and lower clamps for slip during jack lifting. If block teeth are filled with foreign matters, clean on time and clean the taper sleeve outside block. Grease the taper surface to reduce sliding friction between taper surface and block arc; if teeth shaped surface is severely worn more than 0.4mm, replace block on time. Remove upper and lower clamps and clean after each project. Check wear condition and replace when necessary;

6. Check whether exhaust valve is closed before lifting;

7. Increase pressure slowly during adjustment;

8. System pressure can be at 28Mpa for a short time. Avoid long-term operation for damaging the system;

9. Do not crash high pressure oil pipe with hard objects. Avoid welding slag scorching. Replace high pressure rubber pipe for loss on time;

10. Release the pressure in system via exhaust valve when replacing hydraulic components;

11. Lift jack for a few millimeters when loosening clamp. Unload lower clamp and loosen it;

12. Loosen all lower clamps for butt joint and check; if looseness is inadequate, do not descend jack for opposite joint to avoid lower clamp damage;

13. Adjust pressure precisely when jack is ascending or descending in place. Do not put solenoid valve at neutral position to avoid instantaneous overvoltage;

14. Long-term overload operation is prohibited;

Precautions for the use of hydraulic jack

1. Hydraulic oil level in oil tank should be regularly maintained to normal level. Due to large capacity chamber of piping and hydraulic cylinder, it is mostly required to fill adequate hydraulic oil. After startup, hydraulic oil enters pipeline and cylinder, oil level decreases and filter even shows above oil level. Replenish hydraulic oil once again. It’s inevitable that hydraulic oil has loss during use, therefore, observe oil level regularly and replenish on time to maintain it at the middle position of level meter;

2. Hydraulic oil shall be kept clean always. Use oil filter vehicle when filling hydraulic oil with filtration precision below 30υm;

3. Replacing cycle for hydraulic coil is one year for normal operation;

4. Discharge all residual oil in tank when replacing hydraulic oil and refill after cleaning the tank. Filtration precision of new oil shall not be lower than precision of the system. Oil amount in tank shall be maintained within fixed level range;

5. Oil temperature shall be appropriate, not more than 60℃. Check for abnormal oil temperature rise. Start hydraulic pump and operate as required after oil temperature reaches 15 ℃ during winter;

6. Pay attention to the following for initial startup of hydraulic pump:

7. 1)     Hydraulic oil level in the tank shall be at the full position of vernier;

   2)     Check rotation direction of motor and it shall be clockwise seen from motor tail (arrow direction). If the direction id reversed, stop immediately and regain operation after handling;

   3)     Step up after 10 minutes’ idle operation of pump station;

8. Pay attention to check return oil filter. Replace cartridge for damage on time;

9. Before starting and stopping hydraulic pump, unload the overflow valve;

10. Spares for wear parts (seal ring, clamp block, etc.) shall be available at all times for timely replacement;

11. Set pressure of overflow valve cannot exceed maximum pressure of hydraulic system;

12. Check and maintain the jack before operation to ensure there is no oil leakage, clamp and the whole machine is in good condition;

13. When inserting lifting rod, the jack shall be loosened (loosening nuts at upper and lower clamps are screwed upward in place). Note that lifting rod and jack shall be almost concentric. Reset upper and lower clamps for normal operation and make the jack in operating state;

14. Prevent mud and sand from entering hydraulic rubber pipes during connection to avoid damaging hydraulic system and the jack;

15. Overpressure (overload) is prohibited during operation;

16. Lifting height shall exceed 20-30mm of coaming height and make jack piston at middle position for butt weld;

17. Make the jack at lifting state when descending the rod and oil pressure cannot be higher than that during lifting, that is to adjust oil pressure below that during normal lifting and then loosen lower clamp. After the jack is back stroke and lifted steel plate falls on newly surrounded plates, the jack bears no load. Loosen upper clamp and lifting rod descends;

18. According to actual ambient temperature, it is decided to use N46 anti-wear hydraulic oil for the system and mix of other grades is prohibited;

19. Clean and maintain the jack on time after one project, especially attachment at clamp block teeth. Replace for severe teeth wear and repair the replaced jack.

How to repair and maintain hydraulic jack in daily use

A.Routine inspection items and contents

B.Periodical inspection items and contents

Hydraulic jacking system as a widely used tank lifting machine, its safety is widely supported and proven.What we said above is more to help you know how to use the hydraulic jack safely and correctly. I hope you found this helpful.

Hydraulic jack is mainly used in the inverted construction of vertical cylindrical steel storage tank (hydraulic lifting method) in petrochemical industry, inverted construction of steel liner in power plant chimney and inverted construction of vertical cylindrical low temperature storage tank, etc. Today I will introduce our YT series hydraulic jack, and take the YT30 for example. I will introduce this product in the following aspect.

●The features of equipment

●The structure of equipment

●The overall structure of the equipment and its working principle

The features of equipment

1.The set of equipment is mainly composed of hydraulic lifting pump station, hydraulic cylinder, wire rope and so on, easy to install.

2.The equipment adopts PLC program to control the lifting centrally. Each lifting pump station is equipped with displacement sensor device, which is easy to operate and has high lifting synchronization accuracy.The equidistant distance can be adjusted arbitrarily.

3.The hydraulic lifting pump station can be divided into two modes: dynamic and centralized control. The hydraulic cylinder can be adjusted (fine-tuning) rising and falling individually or locally (several), and can be controlled centrally by multiple groups. The lifting height can be more accurately controlled, which is convenient for the butt adjustment of the welding seam of the tank wall.

4.Each hydraulic cylinder is equipped with safety valve, good self-locking,equipment will not be due to power failure in the process of operation;

5.The blasting and breaking of a high-pressure rubber hose.The failure of a hydraulic cylinder causes the tank or heavy weight to slide or fall, and the hydraulic lifting process is safe and reliable.

6.The stroke of hydraulic cylinder is 3200mm, which can meet the one-time lifting completion of the existing panel width and reduce the lifting time.

7.The overall base length of the equipment is only 2200mm, which can fully meet the automatic welding process of large storage tank inner ring seam.

The structure of equipment

Electrical control system: power supply part, control part (operating platform) and pump station control box.

Centralized control	Control panel	Power supply	Pump station control box

The equipment consists of five parts;It is composed of power supply part, control part, hydraulic station part and pipeline part

 ● The power supply part provides power supply for the control part, and the hydraulic station provides power supply.

● The control part provides control for hydraulic station and hydraulic jack

● Hydraulic station: it is composed of oil pump electric unit, hydraulic valve set, high-pressure ball valve, high-pressure rubber hose and oil tank to provide hydraulic energy for hydraulic jack.

● Hydraulic jack part: hydraulic cylinder, wire rope, such as equaling rod device, hydraulic cylinder roof device, hydraulic cylinder support rod, etc

● The fixed plate, wire rope lifting lug and pin for the hydraulic cylinder are made by the user.

The overall structure of the equipment and its working principle

1.The overall structure of the equipment

1).The set of equipment is evenly placed around the lifting object, the overall force and lateral force of the equipment are strictly calculated and successfully applied.

2).Precise and compact structure, adjustable output force, lifting speed to meet lifting requirements, high synchronization accuracy.

2.Working principle of equipment

Force transfer process:

Output force of hydraulic cylinder → steel wire rope → rising ring (welded with lifting lug) → conduction plate → wall plate lifting  

Hydraulic jacking system is mainly used in large tank construction. WINCOO ENGINEERING CO.,LTD is supplying tank hydraulic jacking system to tank contractors worldwide.

The tank hydraulic jacking system is generally equipped with safety protection devices such as anti-falling, overloading, power failure, etc., rail-type external power unit, using hanging chains or cross bars at the entrance and exit of the table, guardrails and lifting platform operating warning lights or warning bells, when the door is opened Many functions such as a safety switch to close the circuit of the elevator platform. The tank hydraulic jacking system is extremely convenient and convenient for the operator to multi-point control of each working layer, jog or safe mode operation.

Here is the content list:

l Analysis on the application performance of the tank hydraulic jacking system.

l About the general layout of the tank hydraulic jacking system.

l The application environment analysis and prospect of the tank hydraulic jacking system.

Analysis on the application performance of the tank hydraulic jacking system.

The tank hydraulic jacking system product has a solid structure, large carrying capacity, stable lifting, simple and convenient installation and maintenance, and is an economical and practical low-floor replacement elevator ideal cargo conveying equipment. According to the installation environment and use requirements of the tank hydraulic jacking system, different fixed hydraulic jacks can be selected, and different optional configurations can be selected to complete the task of lifting objects and achieve better results.

If the tank hydraulic jacking system requires a large size, a fixed double-span hydraulic lift can be used. The double-span type has stable lifting, large carrying capacity and simple operation. It is widely used in vehicle maintenance, kilns, chemical plants, equipment supporting, etc. Industry use.

About the general layout of the tank hydraulic jacking system.

The tank hydraulic jacking system is suitable for installation and use under various environmental conditions indoors and outdoors. It can be installed in a closed hoistway or between open floors, in a concave foundation pit or on a flat ground according to usage requirements.

Due to the height of the building or work shelf, the size and weight of the objects carried by the tank hydraulic jacking system, and other requirements for use, there are many uncertain factors for its model. When the models shown in the list are not suitable for use requirements, the elevation, carrying capacity, platform area, etc. of the lifting platform can be combined according to the actual use environment and operating requirements to achieve the desired use effect.

The application environment analysis and prospect of the tank hydraulic jacking system.

Tank hydraulic jacking system is a kind of cargo lifting equipment with good lifting stability and wide applicability. It is mainly used for production line, automatic line transportation of goods with height difference on a certain section, material on-line and off-line, workpiece assembly and other lifting operations.

According to different working requirements and use environments, different tank hydraulic jacking system forms, power forms, control methods and other additional accessories can be configured. The tank hydraulic jacking system has a compact and stable structure and can adapt to high frequency continuous operation. The high stability of lifting can satisfy the stable lifting of large tonnage cargo. The tank hydraulic jacking system is equipped with a hydraulic system with anti-attachment and overload safety protection to ensure safe operation. Any configuration of rollers, balls, turntables, etc. can meet the requirements of different working conditions.

The oil tank hydraulic jacking system is a special hydraulic lifting platform for cargo transportation. It is mainly used for cargo transportation between various working layers such as warehouses, garages and workshops. Tank hydraulic jacking system has the advantages of wide applicability, large carrying capacity, safe and stable hoisting, and simple installation and maintenance. It is an economical and practical ideal cargo transportation equipment!

During the use of tank welding machine, all arc welding equipment must be maintained at any time and kept in a safe working condition. When the tank welding machine has defects or safety hazards, it must be discontinued until its safety is guaranteed. Repairs must be carried out by approved personnel.

Here is the content list:

l Common problems of tank welding machine.

l What are the correct operating specifications for tank welding machine work?

l Solutions for tank welding machine maintenance and maintenance.

Common problems of tank welding machine.

l Why is the tank welding machine suitable for welding thin plates and drawn arc welding for thick plates?

1. In most cases, tank welding machine is suitable for welding on thin plates, and drawn arc stud welding is suitable for welding on thick plates.

2. Tank welding machine is characterized by high current and short time, so the molten pool is shallow and welding deformation is small.

3. But at this time, the welding strength is still relatively large (welding strength> stud strength> sheet strength, or welding strength> sheet strength> stud strength). Therefore, it is the stud or the sheet that yields first.

4. If tank welding machine is used on a thick plate, the strength of the plate itself is the greatest, because it is almost impossible to be torn, so the stud or welded joint may yield first.

5. Another reason is that tank welding machine cannot be welded on hot-rolled plates, and thick plates are hot-rolled plates in most cases.

6. The drawn arc stud welding current is relatively small, but the welding time is longer, so the molten pool is deeper and the welding deformation is larger.

7. If the deeper molten pool is welded with thin plates, it is easy to cause penetration. Generally, the mminimu plate thickness is required to be 1/4 of the stud diameter.

8. The deeper molten pool makes the welding strength always greater than the strength of the stud itself, so the stud or plate is always the first to yield in the destructive experiment.

l In the stud welder test, how to understand "the welding strength is greater than the strength of the plate and the stud itself"?

1. This sentence is mainly aimed at tank welding machine welding strength test.

2. In the destructive experiment, if the plate is torn or pulled through, and the stud welding part is still not separated from the plate, it means that the stud welding strength is greater than the strength of the plate itself.

3. If the stud is broken or bent and the welded part of the stud is still not separated from the plate, it means that the strength of the stud welding is greater than the strength of the stud itself.

What are the correct operating specifications for tank welding machine work?

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:

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 tank 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

Solutions for tank welding machine maintenance and maintenance.

For the tank welding machine construction solution, the following brief description outlines the work process. If the tank welding machine needs repair and maintenance, it can be modified in some details as needed.

Step 1. Place the tank bottom-plate on the prepared foundation and weld it together.

Step 2. Assemble the beam or trellis of the roof, and finally connect it to it.

We have the ability to provide feasible solutions for tank welding machine construction solutions, electric vertical storage tank construction solutions, CNC vertical storage tank construction solutions, electrical vertical storage tank construction solutions, and horizontal vertical storage tank construction solutions. Solutions to support customers in shortening project execution time, reducing man-hour costs during the project bidding phase, improving construction efficiency, and improving quality!

Automatic welding machine refers to the machine equipment that welds the annular gap. For example, the welds between the upper and lower covers of a household air-conditioning compressor and the housing are welded by a ring welder. Automatic welding machines are divided into vertical girth welding machines and horizontal welding machines. Generally, the welding machine used for the ring welding machine is gas shielded welding with automatic wire feeding. Next, by introducing the automatic welding machine provided by WINCOO, the application environment of the tank welding machine will be described in detail.

Here is the content list:

l Research background of tank welding machine.

l The application prospect of tank welding machine in the future.

l What are the application environments of tank welding machine?

Research background of tank welding machine.

Metal pipe welding is an important part of aeroengine. Fuel, lubricating oil, air, oxygen and other working media in each system rely on metal pipes for transmission. Aviation engine pipeline parts have many types, large quantity, and high accuracy grade. Therefore, the requirements for manufacturing precision and quality are very high, and the requirements for manufacturing methods are getting higher and higher.

The main manufacturing method of metal conduit is tank welding machine welding. The welding of metal conduits of aero-engines mostly adopts manual argon arc welding, flame brazing, induction brazing, etc. The above-mentioned welding method is easy to operate, simple in equipment, low in cost, and low in requirement for a single welded pipe. Pipes, so it is widely used for pipe welding.

However, these welding methods are manual operations, which require very high skills for tank welders. Usually the weld formation is not ideal, and defects such as weld deviation, dents, weld leakage and incomplete welding will occur.

The application prospect of tank welding machine in the future.

In recent years, with the large-scale application of metal conduits, the welding quality requirements of metal conduits have become higher and higher, and the welding of automatic welding machines has become an ideal conduit welding method.

In the 1990s, there was an automatic girth welder for welding metal pipes. The diameter of the welded pipe could cover all the metal pipes on aero engines.Therefore, in recent years, automatic welding machines have been applied to the welding of metal conduits of aero-engines and have achieved success.

What are the application environments of tank welding machine?

In the operation of picking and exchanging electronic components, a tank welding machine welding process is required. Often in order to locate the problem of the circuit function, it is necessary to remove the components from the printed circuit board and perform the necessary measurements.

Generally, the reliable and successful operation of equipment related to space, defense, medical electronics, traffic control systems, communication systems, and supervision and control systems all rely on excellent tank welding machine welding.

1) Disassembly of extra components;

2) Inspection of components;

3) Exchange of defective components;

4) Check the circuit function.

The welding technology of the tank welding machine is an accompanying technology. With the development of the electronics industry, more useful packaging technologies and smaller components will certainly continue to appear, and tank welding machines will continue to be developed to meet the needs of the electronics industry and environmental issues. This is why for technology professors working in the electronics industry today, welding has become more and more professional!