Telescopic Belt Conveyor
Tape conveyor is also called belt conveyor, which is the main equipment of organic fertilizer production. Conveyor belt movement according to the principle of friction transmission, suitable for conveying bulk density less than 1.67 ton / CBM
Telescopic Belt conveyor
Telescopic belt conveyors (also known as telescopic loading machines or extendable belt conveyors) are a new type of continuous conveying equipment that adds a telescopic mechanism to a regular belt conveyor, allowing the equipment to freely extend and retract along its length and control its length at any time. Users can adjust buttons to control the extension length of the conveyor according to their needs. This equipment can transport materials bidirectionally and can be used in conjunction with other conveying equipment and material sorting systems to automate material entry and exit from warehouses or vehicle loading and unloading.
Telescopic belt conveyors were first used in the logistics, express delivery, and tobacco industries. Their use significantly reduced the distance of manual material handling, shortened truck loading and unloading time, reduced the labor intensity of handlers, reduced product damage rates, and lowered loading and unloading costs and human resource costs for enterprises. With continuous technological advancements, this equipment is now widely used in warehouses and storage facilities, box transport systems, shipping and receiving areas, and distribution centers, and is applied in various industries including home appliances, electronics, electrical appliances, machinery, tobacco, injection molding, postal services, printing, and food. Some models are also equipped with automatic lifting devices, allowing users to control the height of the conveyor end at any time.
Equipment Structure
A telescopic belt conveyor mainly consists of the following core components:
(I) Head section: This includes the motor, transmission device, and rollers, serving as the power source and transmission core of the equipment. The drive unit rotates the drive roller via the motor, coupling, and reducer.
(II) Body section: This includes the frame and idlers. Idler rollers support the conveyor belt, reducing its running resistance, ensuring the belt sag does not exceed a certain limit, and guaranteeing smooth operation. Idler rollers are classified into trough idlers, parallel idlers, self-aligning idlers, and impact idlers. The frame is divided into two main parts: fixed and non-fixed.
(III) Tail section: Located at the end of the equipment. Heavy-duty tail sections can withstand greater tension and impact.
(IV) Conveyor belt (rubber belt): The conveyor belt serves as both the load-bearing and traction mechanism. Based on the core material, it is classified into steel cord conveyor belts, nylon core conveyor belts, vinylon core conveyor belts, and canvas core conveyor belts. Materials include rubber belts, canvas belts, PVC belts, food-grade PU belts, PVK belts, and more.
(V) Telescopic Mechanism: This is the core component that distinguishes it from ordinary conveyors. It typically consists of the tail section, inner telescopic frame, outer belt frame, and traction components. For example, a wire rope traction component allows the inner telescopic frame to slide relative to the outer belt frame, adapting to changes in overall length. Through the sliding cooperation of the main frame and the auxiliary frame, the tension of the conveyor belt can be maintained during telescopic movement, achieving stepless adjustment. Telescopic conveyors are available in two-section, three-section, four-section, five-section, and six-section configurations.
(VI) Belt Storage Device: This device temporarily stores excess conveyor belt before and after telescopic conveyor movement. The belt storage rack is an important component of the belt storage device.
(VII) Auxiliary Devices: These include tensioning devices (ensuring sufficient tension on the conveyor belt), cleaning devices, and braking devices (emergency braking devices to prevent accidents). A thyristor-controlled soft starter allows for smooth starting. Some designs also include a buffer mechanism to support the goods at the end of the conveyor to prevent them from falling directly, facilitating unloading or enabling automatic unloading.
Application range of equipment
Telescopic belt conveyors have a wide range of applications. Logistics and express delivery industries: mainly used for parcel loading, unloading, and sorting in postal, express, and distribution centers. Tobacco industry: one of the earliest adopters of this equipment. Warehousing and distribution centers: used for inbound and outbound operations in warehouses and storage facilities. Ports and docks: used for loading and unloading bulk and containerized cargo. Airports and railway stations: used for baggage and cargo loading and unloading. Industrial and mining enterprises: suitable for material handling in industries such as home appliances, electronics, electrical appliances, machinery, injection molding, printing, and food. Grain processing: used by large grain processing enterprises for bulk grain unloading and transportation. Other industries: applied in chemical, light industry, petroleum, and transportation industries. Telescopic belt conveyors are mainly used in vehicle loading and unloading and material handling systems with telescopic requirements.
Types of available raw materials
Types of available raw materials
Telescopic belt conveyors can transport a wide variety of materials. Bulk materials: small lumps, granules, and powders. Packaged goods: lightweight products such as cartons and bags. Grains: bulk grains, etc. Industrial products: household appliances, electronic products, and machine parts, etc. Different types and models of conveyors can be selected according to the specific processes used in different industries.
Working principle of the equipment
Equipment operation method
Equipment maintenance methods
Working principle of the equipment
The working principle of a telescopic belt conveyor is basically the same as that of a regular belt conveyor. It achieves continuous operation through the friction between the conveyor belt (or wire rope) and the drive drum (or drive wheel). The conveyor belts (or wire ropes) are connected in a closed loop and tensioned by a tensioning device. Driven by an electric motor, the conveyor belt rotates continuously, transporting the load from the loading end to the unloading end.
Its telescopic principle is mainly achieved through a mechanical structure. The telescopic control motor drives the telescopic joint to move the belt forward or backward, thus changing the conveying distance. Simultaneously, the conveyor drive motor drives the drive drum to rotate the belt, achieving the desired operation. The telescopic belt conveyor can freely extend and retract in its length direction, allowing for control of the conveyor's length at any time. Some models are also equipped with a hydraulic lifting mechanism, enabling free adjustment of the height at the conveyor end. This equipment uses a boltless, quick-release bracket, supporting rapid extension and retraction.
Equipment operation method
(I) Pre-start Inspection: Before starting each shift, check the cleaning device, rubber scraper, belt contact condition, and belt joint condition. Address any problems promptly. Check the conveyor belt for damage, ensure the idlers rotate freely, and check all bolts for looseness. Confirm the telescopic mechanism is operating normally and without obstruction.
(II) No-load Start: Telescopic belt conveyors must be started without load; starting with material is strictly prohibited. Before starting, ensure there is no material or debris on the conveyor belt.
(III) Operation: Start the conveyor drive motor to allow the conveyor belt to run normally. Use the telescopic control button or handle to control the extension and retraction of the telescopic joint, adjusting the conveyor length to the appropriate position. For models with automatic lifting devices, the height of the conveyor end can be adjusted via the lifting control. During operation, ensure the material is evenly distributed and avoid overloading. Pay attention to the material direction when operating in both directions.
(IV) Shutdown Operation: First, stop feeding. After all material on the conveyor belt has been unloaded, disconnect the power. The telescopic mechanism should be operated under no-load conditions.
Equipment maintenance methods
(I) Daily Inspection: Inspect the conveyor belt's operation and adjust it promptly if deviation is found. Check the belt tension to ensure it is appropriate. Check the idler rollers' operation and replace any non-rotating or damaged idlers promptly. Check the wear of the rubber scrapers on the cleaning device.
(II) Periodic Maintenance: Regularly check all fastening bolts to prevent loosening. Regularly check the sliding parts of the telescopic mechanism, keeping them clean and lubricated. Check the operation of the belt storage device. Regularly check the electrical system and safety protection devices.
(III) Lubrication Management: Add grease to the drive roller bearings according to the specified cycle. Regularly check the gear reducer's oil level and replenish or replace gear oil as needed. Regularly apply lubricating oil to the sliding guide rails of the telescopic mechanism.
| Belt Width (mm) |
Conveying length(m) Power(kw) |
Conveying speed (m/s) |
Delivery quantity (t/h) |
||
| 500 | ≤12 3 |
12-20 4-5.5 |
20-30 5.5-7.5 |
1.3-1.6 | 78-191 |
| 650 | ≤12 4 |
12-20 5.5 |
20-30 7.5-11 |
1.3-1.6 | 131-323 |
| 800 | ≤6 4 |
6-15 5.5 |
15-30 7.5-15 |
1.3-1.6 | 278-546 |
| 1000 | ≤10 5.5 |
10-20 7.5-11 |
20-40 11-22 |
1.3-2.0 | 435-853 |
| 1200 | ≤12 7.5 |
10-20 11 |
20-30 15-30 |
1.3-2.0 | 655-1284 |
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