On the application of hydraulic couplings

Large-scale machinery and equipment for the two-axis adjustment more difficult, you should choose to use durable and easy replacement of wearing parts couplings. Metal elastic element of general than non-metallic flexible coupling flexible coupling elastic element long life. Require lubrication and the use of non-durable sealing couplings, will increase maintenance. For long-term continuous operation and high cost of occasions, such as China’s metallurgical enterprises in the high-speed end mill drive system, now widely used in the gear coupling, gear coupling Although theoretically transmit torque, but it must be in lubrication and sealing durable good condition to work.

And the need to regularly check the condition of the seal, oil or grease injection, maintenance workload, increased aid work, reducing the effective working hours, affecting production efficiency. International industrial countries have common use long life, no lubrication and maintenance diaphragm coupling along replace drum gear coupling, not only improve economic efficiency, but also purify the work environment. In the selection of the mill drive system developed by knockout elastic coupling and flexible coupling segments, not only has the advantage of diaphragm couplings, and a good buffer damping effect, the price is cheaper.

General Machine Components category couplings are used to join two different bodies axis (master axis and slave axis) so that co-rotating mechanical parts to transmit torque.

Explain some widely used on coupling: coupling by elastic deformation of the diaphragm to compensate for the relative displacement of the two axes associated, is a high performance metal elastic element flexible coupling, no lubrication, more compact structure high strength, long life, no rotation gap, independent of temperature and oil slicks, with acid, alkali, corrosion resistant, suitable for high temperature, high speed, there is shaft drive corrosive environmental conditions, and is widely used in shaft drive various mechanical devices, such as pumps (especially power, chemical pumps), fans, compressors, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, mining machinery, metallurgical machinery, aviation (straight l aircraft), ship speed drivetrain, after balancing for high-speed drive shafts have been more common.

Hydraulic gear pump regulation of safe operation

1. Ground power, chassis ground wire must check the wiring insulation, before commissioning.

2. Before running the high-pressure gear pump should release all the oil control valve, and then start the gear pump, to be empty load is operating normally, and then return valve closed, and gradually screwed into the valve stem oil, increasing the load, and Note that the pressure gauge is normal.

3. gear pump stops working, you should first return valve slowly release until the pressure gauge and slowly return to zero before breaking jack tubing connector nut. Non-removable tubing or pressure gauges at the load.

4. The double-acting jack with gear oil pump, oil at the same time using two-way dual-coupled gear pump is appropriate.

5. The oil must be resistant to high pressure rubber tube, the working pressure shall not exceed the rated maximum hydraulic oil or gear oil pump of the actual work. Tubing length should not be less than 2.5m. When a gear pump driven by two jacks, tubing size should be consistent.

6. gear pumps and jacks to use the provisions of the working oil oil number, usually on the 10th or the 20th machinery oil, can also be used hydraulic oil, other similar nature, such as transformer oil. The oil must be poured into the tank through a filter. Often used when the filter once a month, the tank should be cleaned regularly. General should keep the oil level in the tank is about 85%, should be less timely complements the original pump oil should be the same number of oil. Oil tank should generally be within 10 ~ 40 ℃ is appropriate, should not be used at negative temperature.

7. Avoid bending the tubing at the operating pressure. Gear pumps and jacks to connect the fuel tank should be kept clean, the dam is not used with screws to prevent sediment entering, gear pumps and jacks exposed nipple nut use sealed to prevent dust. Debris into the machine. After daily use, you should wipe the gear pump, remove grease consider oil on copper wire cloth.

8. gear pumps should not be at work overload, safety equipment shall be rated hydraulic pressure adjustment, non-arbitrary adjustments.

Hydraulic gear pump regulation of safe operation

1. Ground power, chassis ground wire must check the wiring insulation, before commissioning.

2. Before running the high-pressure gear pump should release all the oil control valve, and then start the gear pump, to be empty load is operating normally, and then return valve closed, and gradually screwed into the valve stem oil, increasing the load, and Note that the pressure gauge is normal.

3. gear pump stops working, you should first return valve slowly release until the pressure gauge and slowly return to zero before breaking jack tubing connector nut. Non-removable tubing or pressure gauges at the load.

4. The double-acting jack with gear oil pump, oil at the same time using two-way dual-coupled gear pump is appropriate.

5. The oil must be resistant to high pressure rubber tube, the working pressure shall not exceed the rated maximum hydraulic oil or gear oil pump of the actual work. Tubing length should not be less than 2.5m. When a gear pump driven by two jacks, tubing size should be consistent.

6. gear pumps and jacks to use the provisions of the working oil oil number, usually on the 10th or the 20th machinery oil, can also be used hydraulic oil, other similar nature, such as transformer oil. The oil must be poured into the tank through a filter. Often used when the filter once a month, the tank should be cleaned regularly. General should keep the oil level in the tank is about 85%, should be less timely complements the original pump oil should be the same number of oil. Oil tank should generally be within 10 ~ 40 ℃ is appropriate, should not be used at negative temperature.

7. Avoid bending the tubing at the operating pressure. Gear pumps and jacks to connect the fuel tank should be kept clean, the dam is not used with screws to prevent sediment entering, gear pumps and jacks exposed nipple nut use sealed to prevent dust. Debris into the machine. After daily use, you should wipe the gear pump, remove grease consider oil on copper wire cloth.

8. gear pumps should not be at work overload, safety equipment shall be rated hydraulic pressure adjustment, non-arbitrary adjustments.

What are the conditions of the hydraulic pump to work to meet?

Under what conditions to meet in order to make the pump normally work?

1, should have to have a sealed volume. If the volume is not enough seal, it will not be enough for the oil pressure into energy, it can not be converted into energy, the hydraulic pump to move up.

2, sealed volume can alternate with each other. During continuous operation of the pump, when the volume of the oil chamber that it must continue to slowly increase from small to form a vacuum chamber oil, then the oil tank can be inhaled; when the oil chamber volume from large slowly When reduced, the oil will be pressed into sealing working oil chamber, so that the internal pressure was increased, the oil pressure depends on the output when the input from the pump by the resistance size.

3, the device should be equipped with flow means, when the suction pump automatically in communication with the reservoir, and when the oil pressure supply line communicated with the reservoir while automatically cut off.

4, when the suction air to circulate inside the tank with each other, is a prerequisite to achieve oil-absorbing.

People working in the mechanical factory know, to make the large machine started up production work, it is first of all have to work the pump in order to promote the production and operation of the machine, hydraulic pump would be tantamount to the heart of those behemoths, led the other bodies of the machine work. When the pump this “heart” problems can not operate normally, those big machines will not be forced to stop work.

Car routine maintenance work done four

In fact, routine maintenance work is very simple, summed up: clean, tight, inspection, supplements.

First, clean
Air contains a lot of dust, sand and an acidic substance, is not only easy to be leaked fuel adhesion, baking at a high temperature to form a hard insulation layer easy, so that deterioration of thermal performance parts, and could easily be eroded by electrostatic attraction body paint face to premature fading.
1. Clean the air filter
Steep dirty air filter will hinder fresh air into the cylinder, resulting in Aiki too thick, incomplete combustion, power down, exhaust exceeded. Modern air filter is generally used paper filter, clean the note: do not use water or oil wash, pat method should be used and purging method. Pat pat filter method that end face, so dust off. Purging method which uses compressed air to filter out internal purge air pressure: the force should not exceed 0.3N / Pa
2. Clean the oil filter
Confusion clogged oil filter will impede the flow of lubricating oil, poor engine lubrication, increased wear and even bush-burning and so on. For this reason, should be regularly cleaned or replaced. Usually replaced once every driving 8000km, if the climate is dry. Should be shortened to 5 000km replacement.
3. Clean the battery
Modern cars are generally maintenance-free batteries, first clean the battery top, to avoid inter-pole due to the electrolyte or other impurities caused by a short circuit; secondly to clean the battery terminals to prevent joints caused by poor contact to produce oxides. Vent should be smooth to avoid excessive pressure or temperature within the battery burst leaving hand.

Second, fastening
After clean vehicles, it is necessary for each connection fastening. Because the process of vehicle vibration, bumps, swing and other reasons, will inevitably lead to loose connections, frayed. Therefore, routine maintenance should promptly tightened. Fastening work daily connections directly related to traffic safety, especially important parts steering, braking, transmission, etc., must not be taken lightly.
1, first of all, the engine around each hose connector fastening, anti-leakage of oil.
2. Second, tighten all electrical equipment, wiring and connectors to prevent open circuit, short circuit, grounding, etc. affect the normal operation of electrical equipment.
3, again, the main connecting member fastened checked. Such as generators belts, steering linkage mechanism actuating means coupling point, drivetrain and tires.

Third, check
After connecting fastening, Tony l should check the height and quality of the oil, because of fluid loss at high temperatures will gradually reduce the level of oxidation and lead to poor performance
1. Check the battery fluid level with a 5 N 6mm diameter tube, add liquid from the mouth of the vertical force to filter into contact with the upper end closed with the thumb to live tube, lift tube, measuring the height of the liquid column which is the Battery fluid level, the standard should be 10 N 15mm.
Height 2, check the oil level in the
Remove the oil dipstick cold car, after the wipe into the bottom of the oil pan, after observing its height should be between the upper and lower marking. Hot car should turn off standby all the oil flowing into the oil pan and then measured.
3. Check the coolant level in the height of the cold when the coolant tank should be full, the expansion tank fluid level should be between the markings. Hot car should be slightly higher than the standard liquid level
4, check the brake fluid, steering fluid level height
Unscrew the bolts, direct observation level is within the specified range markings.
5, check the oil quality
Regardless of the oil, can use the following methods to check.
(1) the appearance of law: View the oil sample was taken, and if more transparent, indicating that contamination is not serious; if the mist, the oil in the seepage water; if gray, may be contaminated with lead or other abrasive; if present Black, high-temperature exhaust gas is contaminated.
(2) Diffusion Method: drop of oil samples taken on filter paper, if the proliferation of a wide area and the diffusion region and the oil droplets no significant difference, indicating that the oil cleanliness is good; otherwise it is clean of oil change poor.

Fourth, add
1, oil supplement
If you did not find a significant deterioration of oil, should look into the leaks, check if it should be excluded, and promptly make up the same level of oil.
2, fluid replacement
If oil deterioration or exceed the replacement cycle, should be replaced.
Usually every six months traveling 8000km or replaced once the oil; each driving 20,000 to 4 million km or two years to replace a brake fluid; 1-2 years to replace a coolant; every year or with the use of thousands of meters to replace a hydraulic oil .

Car maintenance oil change

How long oil change once? How much oil each time you need to replace? Replacement cycle and the amount of oil on the issue of particular concern to us, the most direct is to see your vehicle maintenance manual, the top general has a very clear presentation. But there are a lot of people have long disappeared maintenance manual, and this time you will find out a lot about. In general, oil change intervals of 5,000 km, the specific amount of the replacement cycle and according to the vehicle-related information to judge.

Not all models are suitable for owners of yourself oil change, but we can learn to see the oil gauge, in order to determine whether the oil to the replacement of the time. Also, change the oil in the oil filter must be replaced at the same time.

Second, antifreeze use common sense
Antifreeze is best used throughout the year, in addition to antifreeze cooling function, as well as clean, rust, corrosion antifreeze effect, reducing water tank corrosion protection of the engine. Note to pick the right color of antifreeze, do not mix.

Third, the brake fluid to use common sense
Function of the brake system and brake fluid are closely linked, in the check and replace the brake pads, brake discs and other hardware, do not forget to see if you need to add brake fluid replacement.

Fourth, the gearbox oil
In order to ensure the car to flexible, should always check the gearbox oil, gear oil, whether or automatic transmission oil, should pay attention to the type of oil, generally speaking are on high.