1. Use significance of attachment
Compared with the traditional use of forklift forks and forks to take cargo pallets for handling and stacking, the application of special accessories can greatly improve the use efficiency of forklifts and reduce operating costs. The special forklift attachment can realize the functions of clamping, rotating (clockwise/counterclockwise), side shifting, pushing/pulling, turning (forward/backward), separating/close (adjusting the distance between forks), telescopic, etc. This is an action that cannot be completed by a forklift. The significance of the application of special attachments for forklifts can be summarized as follows:
1. High production efficiency and low operating cost.
Mechanized handling is shorter than traditional manual handling operations, while reducing labor expenditure and costs and improving work efficiency. In the same handling cycle, the number of movements of the forklift is significantly reduced, the corresponding tires/transmission gears/fuel consumption of the forklift are also reduced, and the operating costs are also reduced accordingly.
2. Safe and reliable operation reduces the accident rate.
The attachments designed and produced by professional forklift attachment manufacturers for different industrial conditions are designed with safety devices, and the goods clamped (or fork) are not easy to slip off under abnormal conditions, such as the pressure holding device of the clamp attachment When carrying the cargo, the tubing bursts, the hydraulic system maintains the pressure, and the cargo will not slide down); the end buffer device of the side shift type attachment, etc., reduces the accident rate.
3. The loss of goods is small.
With the special clamping/side-shifting/rotation functions of the attachments, the goods can be transported or piled up or loaded and unloaded more safely, thereby minimizing the loss of goods. The use of attachments also reduces the frequency of use of pallets (such as pallet-free handling operations), and the corresponding procurement and maintenance costs are also reduced.
3. Classification of forklift accessories
According to the different structures and uses of attachments, we can simply classify the attachments of the forklift as follows:
Fourth, the main product introduction of forklift attachments
1. Side shift fork
It is used to move the goods with pallets to the left and right for easy fork picking and stacking; it improves the working efficiency of the forklift, extends the service life of the forklift, reduces the labor intensity of the operator; saves the warehouse space and improve The utilization rate of the warehouse.
Installation level: ISO 2/3/4 level
Installation form: plug-in type, integral type
Bearing capacity: 2500~8000kg
Function description: (left and right) side shift
2. Adjusting pitch fork
The fork spacing is adjusted by hydraulic pressure to realize the transportation of goods with different specifications of pallets; there is no need for the operator to manually adjust the fork spacing. Reduce the labor intensity of the operator.
Installation level: ISO 2/3/4 level
Installation form: hanging type, integral type (all use the original forklift fork model and fork type)
Bearing capacity: 1500~8000kg
Function description: Adjust the fork spacing
3. Forward fork
Fork or pallet farther away, such as loading and unloading from a side of the car quickly and easily. It is usually used in conjunction with the pitch adjustment fork for higher efficiency.
Installation level: ISO2/3 level
Installation form: hanging type
Bearing capacity: ~ 2000kg
Function description: realize the front and back movement of the pallet and fork the remote goods
4. Paper roll clamp
Used for the transportation of cylindrical goods such as paper rolls, plastic film rolls, cement pipes, steel pipes, etc., to achieve fast and non-destructive loading and unloading and stacking of goods.
Installation level: ISO 2/3/4 level
Installation form: hanging type
Bearing capacity: 1200kg~1500kg (sliding arm type)
Function description: pinch, rotate, move sideways
5. Soft package clip
Used for pallet-free cargo handling of cotton and chemical fiber bags, wool bags, pulp bags, waste paper bags, soft plastic bags, etc.
Installation level: ISO 2/3/4 level
Installation form: hanging type
Bearing capacity: 1400kg~ 5300kg
Function description: pinch, rotate, move sideways
6. Multi-purpose flat (large surface) clip
Realize the pallet-free transportation of box-shaped goods (home appliances such as refrigerators, washing machines, TV sets, etc.) such as cartons, wooden boxes, metal boxes, etc., saving the purchase and maintenance costs of pallets, and reducing costs.
Installation level: ISO2/3 level
Installation form: hanging type
Bearing capacity: 700kg~2000kg
Function description: pinch, side shift
7. Cigarette holder
Used for tobacco box in tobacco industry, especially suitable for pallet-free handling of re-roasted tobacco leaf box. Carry 1, 2, or more leaf boxes at a time.
Installation level: ISO2/3 level
Installation form: hanging type
Bearing capacity: 800kg~2000kg
Function description: pinch, rotate, move sideways
8. (Inverted) bucket clamp
Used for pallet-free transportation and dumping of 55 gallon standard oil drums in 1~4 chemical and food industries. Special bucket clamps for special buckets (such as mini bucket clamps and trash can clamps) can also be made. Installation level: ISO2/3 level
Installation form: hanging type
Bearing capacity: 700kg~ 1250kg
Function description: pinch, (forward) rotation, side shift
9. Fork clamp
can be used not only for fork pallet goods, but also for gripping goods, and can also be used as a pitch-adjusting fork. For example, a detachable clamping arm can be installed on the fork to hold a variety of goods such as oil drums and stone (brick) blocks.
Installation level: ISO 2/3/4 level
Installation form: hanging type
Bearing capacity: 1500kg~ 8000kg (forked); 700kg~ 4800kg (clamped)
Function description: pinch, (forward) rotation, side shift
10、Push and pull device
is used for the palletless handling and stacking of unit cargoes, and is widely used in the food, light industry and electronics industries. Paper skateboards, plastic skateboards, and fiber skateboards can be used as skateboards, eliminating the cost of purchasing, storing, and maintaining trays.
Installation level: ISO2/3 level
Installation form: hanging type, quick type (installed directly on forklift fork)
Bearing capacity: 1700kg~ 2400kg
Functional description: Pull the goods into and (or) push out the skateboard
11. Rotator
can be rotated 360 degrees, used for turning over goods and emptying containers, turning over goods or placing vertical goods horizontally It can be used in conjunction with other attachments to make the rotation function. It can also provide 名媛直播 dedicated to casting, fishing and explosion-proof 名媛直播.
Installation level: ISO 2/3/4 level
Installation form: hanging type
Bearing capacity: 2000kg~ 3600kg
Function description: rotation, side shift
Second-purpose fork clamp
The fork is rotated into two positions: horizontal and vertical. It has the function of being used to pick up the goods and can be used to grip the goods. It can also be rotated to 45 degrees, and the inclined surface is used to fork the barrels and cylindrical goods.
Installation level: ISO2/3 level
Installation form: hanging type
Bearing capacity: 2000kg~ 3600kg (fork); 1250kg~ 2500kg (clamp)
Function description: (fork) rotation, side shift
V. Basic concepts related to attachments
After the attachment is installed on the forklift, the original design state of the forklift has actually been changed, so how will the carrying capacity of the forklift change during the actual operation? Will it further affect the operation and use of the forklift? Before analyzing the situation, it is necessary for us to understand the following concepts. These are the factors most closely related to the actual carrying capacity of the forklift; they are also indispensable when calculating and judging the overall carrying capacity of the forklift.
1. Load capacity
Attachment load refers to the maximum weight that the attachment can safely carry under a certain load center.
2. Load center distance
Load center distance refers to the distance from the front surface of the attachment frame to the center of gravity of the cargo.
3. Lost load distance
The distance from the front surface of the fork frame to the front surface of the attachment frame (that is, the thickness of the attachment).
VI. Forklift / Attachment (Combination) Carrying Capacity
Carrying capacity is an important aspect that must be considered in the selection process of forklifts and attachments. Forklifts (mainly balance weight type) after the attachment is installed, the combined (comprehensive) carrying capacity of the forklift/attachment is the maximum load The bearing weight will be reduced due to the following two reasons:
1) The moment generated by the attachment's own weight offsets the load moment of a part of the forklift.
2) Because the thickness of the attachment frame structure is greater than the thickness of the fork, in actual operation, the load center (distance from the center of the cargo to the front end surface of the forklift fork) of the fork picks up the goods, which also cancels out a part Bearing torque of forklift.
Before the attachment is installed (according to the principle of force balance):
M forklift=M rated load=G rated load x (c+x)
After installing the attachments:
M rated load=M cargo+M attachment
Where: M cargo = G cargo x (x-s+cog)
M attachment=G attachment x (x–s+v+L/2)
Maximum weight of cargo G cargo = (M rated load-M attachment)/(x-s+cog)
VII. Factors to be considered when selecting an attachment
Faced with the working environment conditions, operation methods and different forklifts used or to be purchased by enterprise customers in different fields, how can we choose a forklift attachment suitable for the working environment of our enterprise? Normally, the customer must provide the actual working conditions and requirements of the attachment to the forklift OEM or its sales agent or attachment company. Based on these important information, the forklift factory or its sales agent or attachment company can only carry out the selection of attachments.
The following are the factors to consider when choosing an attachment:
1) What kind of goods does the customer carry: such as paper rolls, soft bags, barrels, household appliances, tubes, pallets and other items.
2) Cargo weight: (including pallet) kg, length (along the direction of travel) mm, width/diameter mm, height mm.
3) Outer surface/contact surface (outer packaging).
4) Transportation method: a. Pallet transportation: size of cargo pallet mm, height of pallet jack mm b. Transportation without pallet: spacing of cargo stack mm, number of cargo pieces
5) Specific handling information / actual environment:
How will the customer handle these goods: push/clamp/rotate (horizontal in the direction of travel)/roll (horizontal in the direction of travel)/lateral movement/roll (in the direction of travel)/loading on the rear of the car/on the side goods.
6) Current customer status information: How has the customer solved the transportation problem so far? How do they want to improve? What is their vision?
7) What are the practical limitations: height, length, width, weight, and others.
8) Application fields of attachments: smelters, construction sites, warehouses, special occasions, etc.
9) Environmental factors: explosive areas, dust, high temperature, low temperature, acidity, sugar, salt, food, nutrition, beverages, etc.
10) Forklift: Forklift model, mast type, type of attachment selected, action function, determine the number of additional oil circuits of the forklift according to attachment type and function
A. A set of attachments for action functions, the forklift must provide a single additional oil circuit (such as the lateral movement of the side shifter);
B． Attachment of two sets of action functions, the forklift needs to provide double additional oil circuits (such as the tension arm / clamping / rotation of the paper roll clamp);
C． Attachment of three sets of action functions. Forklift trucks need to provide double additional oil circuits and install a solenoid valve device (such as opening/clamping, side shifting, and rotating of the rotary side shift type soft bag clamp).
11) Do you have to purchase a new truck for an existing forklift? (Whether there is a problem with the transformation of the forklift, such as: adding additional oil circuits, etc.)
12) Installation cost of attachments (labor cost, time for hydraulic system modification (if necessary), cost of corresponding optional parts, etc.)
Appendix 1 :
Selection of some commonly used attachments
bucket clamp
1 . The weight of the cargo: determine the load of the attachment.
2 . The diameter of the barrel (whether it is a standard oil barrel): determine the shape of the barrel clamp arm.
3. The initial arrangement of the barrel (vertical or horizontal): determine the type of barrel clamp.
4. The stacking method of the barrel and the disposal of the goods in the barrel (forward tilt, left tilt, etc.): Determine the type of barrel clamp.
5. The type of goods in the barrel (whether it is flammable, volatile, explosive, etc.): Decide whether to use explosion-proof attachments.
6. Number of clamps each time: Determine the type of attachment.
Paper Roll Clamp
1 . The weight of the paper roll: Determine the load of the attachment.
2 . The diameter of the paper roll (whether the diameter is uniform): determine the range and structural form of the attachment.
3. Paper quality (kraft paper, newsprint, white cardboard, coated paper, toilet paper, etc.): Decide on the form of plywood for attachments.
4. The outer packaging of the paper roll (such as: kraft paper packaging, plastic film packaging, etc.): Decide on the splint form of the attachment.
5. The number of paper rolls clamped each time: determine the attachment arm type (whether the long arm is separated).
Rotator
1 . The weight of the cargo: determine the load of the attachment
2 . The center distance of the cross section of the fork sleeve under the container (warehouse cage, ladle, etc.) or on its side: determine the front fork rack of the spinner
Width and position of fork positioning groove.
3. The length of the container or cargo in the direction of the fork: determine the load of the attachment and the length of the fork.
4. Attachment working environment (such as: normal temperature, high temperature, fishery, etc.): Determine the type of attachment.
5. The minimum height of the upper end of the original fork frame of the forklift from the ground: Decide the type of fork (A type, B type or special fork), because it is necessary to ensure that the fork can land on the fork after hanging on the attachment.
Soft and flat clips
1 . The weight of the cargo: determine the load of the attachment.
2 . The maximum size of the cargo across the fork direction: determine the range of the open arm of the attachment.
3. The maximum size of the cargo in the direction of the fork: it not only determines the arm length of the attachment but also affects the choice of the load of the attachment.
4. The height of the cargo: both determine the arm height of the attachment.
5. Type of goods (soft, hard, whether the internal product is resistant to squeezing, etc.) and the situation of the outer packaging (in bulk or with strapping, whether the outer packaging allows squeezing): determine the form of the clip arm.
6. The number of clamps each time: determine the length of the arm and the range of the open arm.
7. Cargo transportation process (simple stacking, upper assembly line, loading and unloading trucks, etc.): affect the arm length of the attachment.
8 . Do you need to flip the goods.
Load stabilizer
1 . The height of the goods: determine the range of attachments.
2 . Type of goods: Decide on the type of pressure plate.
3. The size of the single piece of goods is extremely placed, the overall size of the goods in the direction of the fork and across the fork: determine the size of the attachment plate
4. The packaging form of the goods (boxed, bagged, with or without wrapping film, etc.) and the road conditions during operation of the forklift (flat, bumpy) determine whether the attachment is equipped with a retaining shelf.
