2012年6月10日星期日

How classification warehousing forklift?



Warehouse forklift is designed for cargo handling in the warehouse forklift. Except for a few warehouse trucks (such as hand pallet truck) with human-driven, motor driven, because of its compact body, mobile and flexible, light weight and environmental performance are universally applied in the warehousing industry. In multi-shift operation, the storage of motor-driven forklift battery backup.

① Electric Pallet Truck

The carrying capacity of 1.6 to 3.0 tons, operating channel width is generally 2.3 to 2.8 meters, fork upgrade, mainly for the level of handling and cargo handling in the warehouse height is generally about 210mm. Walk, stand on the driving style and ride the ride-on three modes of operations, and asked to choose according to the efficiency.

② Electric pallet stackers

Electric pallet stackers are divided into electric pallet stackers and electric pallet stackers are two types of Gu name Incredibles, the former for travel, lift for electric control, more effort. The latter is the need to manually pull or push the forklift to walk, lift is electric. The carrying capacity of 1.0 to 2.5 tons, operating channel width of 2.3 to 2.8 m, more than a door frame in structure than the Electric Pallet Trucks, fork lift height is generally within 4.8 m, is mainly used for stacking of goods within the warehouse and loading and unloading.

③ Forklift

Carrying capacity of 1.0 to 2.5 tons, door frame to the overall advance or retract, retracted, the operating channel width is generally 2.7 to 3.2 m lifting height up to about 11 meters, commonly used for medium height stacking in the warehouse, take cargo operations.

④ Electric order picker

In certain conditions (such as a supermarket distribution center), does not require the entire pallet shipments, but many varieties of goods to form a tray in accordance with the order picking, this link is called selection. In accordance with the height of the selection of goods, electric order pickers can be divided into low order picker (2.5 m) and high level order picker (up to 10 m). Carrying capacity of 2.0 to 2.5 tons (low), 1.0 to 1.2 tons (in high, with cab upgrade).

⑤ Low stacking forklift driving three-way

Usually equipped with a three-head to the stacker, forklift trucks do not need to turn, and rotation of the fork can be achieved on both sides of the cargo stacking and pick up the channel width of 1.5 to 2.0 m to enhance up to 12 meters in height. The cab of the forklift is always on the ground can not be improved, taking into account the limitations of the operating field of vision, mainly used to improve the conditions of less than six meters in height.

⑥ The high stacking three-forklift driving

Driving a three-stacking forklift similar and low, high driving stacking forklift trucks are also equipped with a three head to the stacking channel width of 1.5 to 2.0 meters, lifting height up to 14.5 meters. The cab can enhance, the driver can be clearly observed to any high degree of cargo can also be picking operation. Pallet Stacker high driving efficiency and a variety of performance superior to the low driving three stacking forklift, so the model has been gradually to replace the low driving three-stacker forklift.

How to classify the internal combustion forklifts?






① Ordinary internal combustion forklifts

Diesel, petrol, liquefied petroleum gas or natural gas engines commonly used as a power of 1.2 to 8.0 tons of payload capacity, operating channel width is generally 3.5 to 5.0 m, taking into account the emissions and noise issues, usually used in outdoor, workshop or other exhaust emissions and noise is not the place of the special requirements. Refueling convenience, so you can achieve a long period of continuous operation, and capable of performing in harsh environments (such as rain) work.

② Heavy forklifts

With a diesel engine as power, carrying capacity of 10.0 to 52.0 tons, cargo terminals, heavier steel industry is generally used for outdoor work.

③ Container forklift

With a diesel engine as the driving force, from 8.0 to 45.0 tons carrying capacity, are generally divided into the empty container forklifts, heavy container forklifts and container stackers. Used in container handling, container yard or port terminal operations.

④ Side forklift

With a diesel engine as power, carrying capacity of 3.0 to 6.0 tons. In the case of non-turning fork to take the goods directly from the side, so is mainly used to fork the goods, such as taking long strips of wood, steel and other.

How to choose a suitable forklift?







Different storage modes need to configure the different forklift, the matching pattern to achieve a FIFO or advanced, space utilization, operating efficiency and investment costs will be a big difference. For example, a traditional heavy duty shelves with forklift trucks to any shelf-bit fork to take the goods, high efficiency, moderate investment cost, wide range of applications, but not enough space utilization; Drive-in shelves often with forklifts or small tonnage forklift trucks, stacking high-density, space utilization, but not any shelf fork to take the goods.

1. A full understanding of the required forklift operating environment, and then select the appropriate models and configurations

Cargo handling? What size card board? To get into the elevator or a container? Channel size is how much? ...

The horizontal movement of goods and enhance the basic functions of forklift trucks, along with stacking, loading and picking ability. Fully understand the weight of the goods, size, shape and height needs to be upgraded and the plant within the channel conditions (channel width, load-bearing ground, the need for anti-static, dust and pollution prevention of explosion-proof, noise) and other information in the case, you can basically determined by what kind of forklift is needed and how the configuration. At the same time, you can consult 1-3 different forklift company for consultation, to reduce the information asymmetry.

2. The cost

There are many companies business owners in the process of buying a forklift, and never carefully calculate the purchase cost. To eliminate the waste on the device, you should clearly know the number of devices they need to science and to maximize the use of its productive forces.

The Forklift price is only the "the tip of the iceberg".

You can also give a simple example, the goods are moved from A to distance B to 100 meters away, we can choose to not spend a penny to buy forklift manual handling of goods in the past, if only from the cost of the investment point of view of Select a few thousand dollars worth thousands of dollars, hundreds of thousands, hundreds of thousands dollars of forklift equipment, cargo handling in the past, From the initial forklift procurement costs alone, a difference between the very poor, but if you calculate the operating costs may be the least investment in equipment required for a single piece of cargo handling costs.

3. The choice of leasing and direct purchase

Lease forklift has become a popular trend in the developed countries in Europe and the United States, 1/3 of the construction machinery is done by way of lease in the United States. Due to different national conditions, China's current forklift rental is still in its infancy. In the economically developed regions (coastal), forklift lease is in full swing. Can be thought of in the future, China's forklift rental business will also like the developed countries, occupy a very important proportion of the material handling procurement industry.

4. The final decision

If your business is to conduct large-scale procurement forklift (10), you need to be entrusted to professional and independent tender (very familiar with the forklift and industrial vehicles) or logistics consulting firm to assist. In order to save the cost of procurement, to prevent the operation of the camera obscura in the procurement process, the final procurement decision-making power into their own hands.

A final note, the cheapest forklift supplier is not necessarily the best, as you buy other consumer goods, a sub-price goods. The forklifts are industrial products, need long-term stability of the service as a support. If a lower than normal sales price supplier of forklift, you can purchase his services would be better to what extent. Smart buyers, do not just look forklift price, the need for a comprehensive assessment and then be decided upon.

What is a forklift safety at work requirements?






1. The door frame may not have the phenomenon of deformation and seam sealing off, rolling to the inside and outside the door frame clearance should be adjusted reasonably, no larger than 1.5mm, the wheel rotation should be flexible wheel and shaft should be no cracks, defects. The amount of wear of the wheel groove shall not be greater than 10% of original size.

2. Two lifting chain degree of tension should be uniform, not distorted, the end of the solid connection, the chain pitch shall not exceed 4% of its original length, it should replace the chain. Sprocket rotation should be flexible.

3. Fork frame shall not be severely deformed, weld sealing off phenomenon. The surface of the fork shall not crack, seam open welding phenomenon. Fork root angle not greater than 93 °, the thickness of not less than 90% of original size. Left and right fork tip height difference should not exceed 3% of the level of fork length. The positioning of the fork should be reliable, forks tied to the bearing surface, the positioning surface may not have obvious defects, and fork with the gap of the fork should not be too large, and move smoothly.

4. The lifting cylinder and door frame connected parts should be solid, tilt cylinders and the door frame, the frame hinge should be reliable, flexible, with the gap is not too large. The fuel tank should be well sealed, no cracks, smooth. Rated load, 10min gantries from Shen amount not greater than 20mm, the inclination is not greater than 0.5 °. Lifting speed at full load should not be less than half of the standard value.

5. Overhead guard, backrest must be complete and valid.

6. Fork up and down is strictly prohibited to stand does not allow pork on a skewer with single goods take a load of goods.

7. Forklift driver must be equipped with a forklift driver's license, avoid a forklift multiple drivers.

What is the electric forklift operating procedures?


1. The start to maintain the appropriate starting speed should not be excessive.
 
2. Observe the voltmeter voltage below the voltage limit, the forklift should immediately stop running.
 
3. Forklifts during walking are not allowed to flip the direction switch to change the direction of travel to prevent burn out electrical components and damage to the gear
 
4. Driving, and upgrade should not be the same time.
 
5. Note that the drive system, steering system, the sound is normal, abnormal sound and timely troubleshooting prohibited sick job.
 
6. Change to slow down in advance.
 
7. When operating under poor road conditions, important appropriate mitigation, and should reduce speed.
 
8. The cargo of the large slope of the road, pay attention to the goods as strong as on the fork.

How to maintenance and repair of electric forklift?



Electric forklift driving safety, maintenance tips, electric forklifts have become increasingly prominent role in the process of production, storage and transportation. All walks of life have gradually increased the demand for electric forklift. So, what issues should pay attention to the use of electric forklift? Electric forklift at runtime how to ensure the safety and accuracy? How to reduce the electric forklift maintenance costs and improve its operating efficiency?
 
1. A test for the first time you want to wheel lift, so that even if there is a connection error, it does not produce dangerous.
 
2. The charging of the battery must be charging circuit with chopper completely out of, because the overvoltage affect charger charging, the charger will damage the chopper.
 
3. Paying particular attention to the battery to the electronic control of the alignment should be parallel to the arrangement and should be as short as possible.
 
4. Vehicles in poor working conditions, ventilation difficult workplaces, it is recommended that the controller compulsory ventilation.
 
5. When the turn does not slow down, the load increased when driving, forklift truck overload, in the tilt, the soft ground driving, the driver should be in operation to avoid these unsafe operations.
 
6. Internal dust of the regular cleaning of the DC motor, check the carbon brushes, and springs.
 
7. The battery should always restocking of distilled water (pure water).
 
8. Long-term use of electric forklift battery is fully charged should be set aside. And maintain a frequency of about 1 to 2 months apart for charging.

How to achieve control of the hydraulic system noise?








1. A piston pump or motor noise

(1) Air suction phenomenon is one of the main hydraulic pump noise is too high. When mixed with air in the fluid, easy formation of cavitation in its high-pressure zone, and the form of pressure wave propagation, resulting in fluid oscillation, causing the system to produce cavitation noise. The main reason:

① Pump oil filter, inlet pipe is clogged or the oil viscosity is too high can cause the pump oil into the mouth of the vacuum through the air infiltration.

② Hydraulic pump, the pilot shaft end oil seal damage, or inlet pipe seal bad, causing air to enter.

③ Oil tank level is too low, so that the hydraulic pump into the tubing to direct air suction.When higher noise in the hydraulic pump work, the above-mentioned parts of the examination, identify problems in time.

(2) Internal pump components, excessive wear, such as piston pump cylinder block and valve plate, piston and plunger holes, such as mating parts wear and tear, injury, a serious leak in the hydraulic pump, hydraulic pump output high voltage, small flow pulsation, the flow of oil will lead to higher noise. May be appropriate to increase the declination of the pilot system variables agencies, to improve the leakage of the pump output flow. Servo valve spool of the hydraulic pump, flow control piston will be due to local wear, strain, so that the piston during the move pulse, causing the hydraulic pump output flow and pressure fluctuations, which at the pump outlet greater vibration and noise . Wear and tear, the strain components of the plating spotting or replacement processing.

(3) One of the important components of the hydraulic pump valve plate is also easy to cause noise. The valve plate is in use due to surface wear or sludge deposited in the unloading slot open at will the unloading groove shorter and change the location of the unloading, resulting in the phenomenon of trapped oil, which led to higher noise. Level grinding to repair the valve plate in the normal repair process will be shorter unloading groove consequences, if not to timely appropriate slender, will also have a greater noise. During assembly, the valve plate unloading groove must be installed in the high-pressure chamber of the pump and the sharp corners of the direction of cylinder rotation to be relative, otherwise it will bring more noise.

2. Relief valve noise

The relief valve is easy to produce high-frequency noise, mainly to instability in the pilot valve performance, that is, the noise generated by vibrations in the air before the pilot valve chamber pressure caused by high frequency oscillation. The main reason:

(1) Oil mixed with air, in front of the pilot valve cavity to form cavitation caused by high frequency noise. At this point, should be promptly drained the air and to prevent outside air to re-enter.

(2) The needle valve during use due to frequent open excessive wear, so that the valve cone and valve seat can not close together, causing the pilot flow instability and pressure fluctuations caused by noise, should be promptly repaired or replaced.

(3) Of the pilot valve spring fatigue deformation caused by the instability of its regulator function, making the pressure fluctuations caused by noise, and you should replace the spring.

3 hydraulic cylinder noise

(1) Oil mixed with air or hydraulic cylinder, the air is not fully drained cavitation under high pressure caused by the larger noise. At this point, shall be promptly drained the air.

(2) Cylinder head oil seal too tight or piston rod bent in the course of the campaign will do fresh produce noise. At this point, shall promptly replace the seal or straightening the piston rod.

4. Piping noisePipe bending die too much or fixed clamp loose vibration and noise. Therefore, the piping layout should avoid bending die, the loosening of the clamp should be tighten.