From the development of conveyors to the present, conveyors have developed into many categories and models. The main product we are introducing today is the “Mobile Telescopic Belt Conveyor”. We will introduce you to the parameters and details of the Mobile Telescopic Belt Conveyor from the following points.

What is the structure of a telescopic belt conveyor?

The retractable belt conveyor mainly consists of a head frame, drive unit, drive pulley, conveyor belt, belt storage device, tail frame, rollers, tensioning device, and other accessories.

How does a telescoping conveyor work?

It is a continuous transport device that uses the conveyor belt as a traction and load-bearing member to convey material by carrying the movement of the material. The conveyor belt passes through the drive pulley and the reversing pulley at the end of the machine to form an unpolarised circular belt. The tensioning device provides the belt with the necessary tension for normal operation. During operation, the drive pulley drives the belt through friction with the belt before it runs.

It can be used as a stand-alone machine to complete the forward and reverse transfer and loading and unloading of products, as well as ascending or descending loading and unloading. It can also be used with hoists, roller conveyors, fixed belt conveyors, and assembly lines to form a complete automated conveying system, completing a series of operations from raw materials into the factory to production, assembly, and finished goods into storage, and factory loading. More often used in warehousing and e-commerce express logistics loading and unloading links, it is a semi-automatic conveying system that can penetrate deep into the wagon compartment and automatically transport goods from the compartment to the output warehouse, which is convenient for unloading and unloading workers or telescopic belt conveyor end connected to the conveyor sorting line to achieve automated operation.

Product Features

1. Compared to traditional manual handling loading and unloading methods, the telescopic belt conveyor can load and unload goods quickly. The time required for loading and unloading the same lorry is 50% of the time required for traditional manual handling.
2. The use of the telescopic belt conveyor reduces the time required for personnel to drag trailers back and forth and to queue up to pull goods, reducing turnaround time as much as possible.
3. The design and production of the machine are ergonomic and easy to operate, reducing labor intensity and minimizing the intensity of work involved in moving goods up and down by hand.
4. The telescopic belt conveyor can be used in many scenarios and is not too expensive to purchase, with a short return on investment.

What are the common parameters?

No	Section	Belt Width	Fixed Length	Extended Length	Total Length
1	2	600/800mm	4m	3m	7m
2	3	600/800mm	5m	7m	12m
3	3	600/800mm	5.4m	6.6m	12m
4	3	600/800mm	6m	8.6m	14.6m
5	3	600/800mm	4m	5m	9m
6	3	600/800mm	9.5m	12m	21.5m
7	4	600/800mm	5m	10m	15m
8	4	600/800mm	6m	12.6m	18.5m
9	4	600/800mm	7m	14.6m	21.6m
10	4	600/800mm	6m	12.6m	18.6m
11	4	600/800mm	7.5m	16m	23.5

How do I install a telescopic belt conveyor?

Telescopic belt conveyors are favored by customers in industries such as logistics, express delivery, and grain transport, and are used on a large scale because their installation accuracy is not like that of precision equipment such as machine tools and large motors, which require high installation conditions, so some users choose to do the assembly themselves. However, the installation of telescopic belt conveyors is not completely free of precision requirements. Because once the installation problem occurs, it will bring unnecessary trouble to the subsequent commissioning work and acceptance work. And in the use of production, it is also easy to cause belt runout and other accidents.

Here we briefly introduce how to correctly install and commission the telescopic belt conveyor, which is roughly divided into the following steps.

Pre-installation preparation.

Firstly, familiarise yourself with the drawings. The drawings enable you to grasp the structure of the product, the way it can be installed, the composition and number of components, performance parameters, and other important information. Then, familiarise yourself with the drawings for important installation dimensions, technical requirements, etc. As there may not be a site of sufficient size to move around during the installation work, it is necessary to pick out the equipment to be installed, mark it, and set the installation position for lifting. Once lifted into place, the installation site will also be surveyed to eliminate any unfavorable factors affecting the lifting and installation of the equipment. When installing, try to find out all the equipment to be installed and used and lift it into place at one time, saving crane costs and improving efficiency.

Installation steps for telescopic belt conveyors.

Whether the telescopic belt conveyor can operate normally and smoothly after installation depends mainly on the accuracy of the installation of the drive unit, the pulley, and the tail pulley. The center of the telescopic belt conveyor support coincides with the centerline of the drive unit and the tail pulley.

Drive unit installation

Placement can be marked between the head (drive unit) and the tail (tailwheel) with a warp and weft gauge, so that the centerline between the head and the tail is connected into a straight line, using this method of placement can ensure a high degree of installation accuracy. The installation of the drive unit is mainly composed of the motor, reducer, drive drum, bracket, and several other parts.

First, we assemble and place the drive drum and bracket onto the pre-built plate, place a steel mat between the pre-built plate and the bracket, and level it with a leveling gauge to ensure that the level between the four points of the bracket is less than or equal to 0.5 mm.

Then, find the centerline of the drive drum, place the line drop on the center line, and adjust the longitudinal and transverse centerline of the drive drum to coincide with the centerline of the foundation.

When adjusting the drive drum elevation, a certain margin is also considered for the adjustment of the motor and reducer elevation. As the connection between the motor and reducer is already adjusted on the support during the manufacture of the machine, our task is to square and level the machine and to ensure the coaxial between the reducer and the drive drum.

When adjusting, the drive drum is used as a benchmark. As the connection between the reducer and drive, the drum is a nylon rod elastic connection, the accuracy of the coaxial can be relaxed and adjusted to less than or equal to 0.2mm in the radial direction and not more than 2/1000 on the end face.

Installation of the tail wheel and roller.

Installation of the tail wheel consists of two parts: the bracket and the roller, whose adjustment steps are the same as those for the drive drum.

The installation of the legs, intermediate frame, bracket, and rollers of the belt machine is mostly H-shaped, and its length and width vary according to the length and width of the belt and the amount of belt transported, etc.

Installation of accessories, and safety devices.

The attachments must be installed only after the belt has been placed on the support. Accessories include an empty section sweeper, head sweeper, anti-running switch, belt tensioning device, etc.

After the above methods and steps of operation, and to ensure a certain range of accuracy, the belt can be operated smoothly and safely through empty and load test runs, positive and negative direction test runs, and adjustment of belt runout.

How to commission the equipment？

After the telescopic belt conveyor is correctly installed, it needs to be carefully and carefully debugged to ensure smooth operation.

The normal degree of tensioning or not directly affects the use effect and service life of the conveyor. Tensioning too loose will cause the conveyor belt runaway while tensioning too tight, and affect the service life of the belt, or even can not rotate or rotate when the belt jumps up and down.

When commissioning and installing the belt conveyor, the first thing to do is to adjust the parallelism and levelness of the belt, as poor parallelism will result in an uneven force on the belt and uneven levelness will cause the belt to run off.

When starting, use the pointing method, and gradually adjust the speed to the required speed after starting, usually, the running speed reaches 60% of the limit speed is appropriate.

What are the common faults and repair methods?

Because of the wide range of uses and the long duration of use, the machine requires occasional maintenance. Otherwise, if the machine is used for a long time without maintenance, there will be some failures. Even some irregularities that are not by the code of practice can lead to some failures of the machine, resulting in the personal safety of the user being affected by the equipment.

Therefore, when using the telescopic belt conveyor, it is necessary to follow the correct operating rules and to maintain the machine regularly. When using, if you encounter machine failure needs to be reported to the repair process promptly. The following is a collation of common telescopic belt conveyor faults and repair methods.

Telescopic belt conveyor failure causes are specifically the following.

1. The belt of the telescopic conveyor runs crooked.
2. Oil leakage and strange noise from the reducer.
3. A belt slippage and belt breakage.

The following gives you a detailed introduction to the common telescopic belt conveyor failure details of the causes and repair methods.

The telescopic conveyor belt running crooked

Telescopic conveyor belt running distortion causes.

1. In the actual running process of the telescopic belt conveyor, as the belt runs in the opposite direction, and the drum and the rollers are not in the vertical section of the running direction, belonging to one side before and one side after, which easily causes the belt conveyor to run out of position
2. The telescopic belt conveyor needs to carry a large load during operation, so it is often in a state of fatigue operation. If the belt is not equally tight on both sides, it will run off.
3. In the process of operation, the belt is subject to friction and pressure, and it is difficult for both sides of the belt to be on the same level, which will deviate from the higher end and affect the normal operation of the belt conveyor.
4. The location of the material is also important, the belt conveyor in the process of transmission and operation, the material in the belt position to be uniform and appropriate, uneven placement will cause the belt in the process of running deviation
5. Over time, the belt will slowly age and wear with use, directly causing a reduction in tensioning force. This directly causes uneven internal stresses, which can cause the belt to run out of alignment.
6. The quality of the installation of the belt machine has the greatest impact on the belt deflection, and the belt deflection caused by installation errors is the most difficult to deal with.
7. Skewed frame. The skew of the frame includes the skew of the centerline of the frame and the skew of the height of both sides of the frame.

Telescopic conveyor belt deflection repair method.

1. For the deviation caused by the installation error, first of all, eliminate the installation error, reconnect the belt joint that should be reconnected, and re-install the frame that is seriously skewed.
2. Adjust the roller group. When the belt of the belt conveyor deviates in the middle of the whole belt conveyor, the position of the roller group can be adjusted to adjust the deviation, and the mounting holes on both sides of the roller support are processed into long holes, which is convenient for adjustment. The specific method is which side of the belt deflects, which side of the roller set moves forward towards the belt running direction, or the other side moves backward.
3. Installation of differential alignment rollers. Its working principle is to use blocking or roller rotation in the horizontal plane to block or produce transverse thrust to make the belt automatically centered, so as to adjust the purpose of belt deviation.
4. If the running material has too much moisture or if the site environment is wet, the construction personnel should try to ensure that the running site is dry to a greater extent, and do drainage and moisture treatment to the construction environment to increase the dryness of the belt running environment.
5. If the friction between the belt and the drum is not enough or the belt load is too large, the builder should find ways to increase the friction between the belt and the drum, thus enhancing the strength of the drum to ensure the high strength operation of the material.
6. There are several ways to increase friction between the belt and the drum and one of the quicker and more significant is how the rubber sheet is laminated to the surface of the drum for cold vulcanization of the drum cover. This ensures easy operation and greatly increases the anti-slip and wear resistance of the roller surface, thus ensuring friction between the belt and the roller.
7. Replace the old belt with a new one to increase the friction with the drum and avoid belt runout.

Reducer oil leaks and rattles

Reducer oil leakage and strange noise failure are caused by:

1. damage to the housing of the speed reducer.
2. damage to the sealing ring or aging.
3. loosening of the reducer counter screws, reducing the solidity of the bearing cap screws.
4. some metallic impurities have penetrated inside the reducer.
5. poor meshing performance of the gears.
6. excessive clearance between reducer bearings.
7. excessive wear and damage to the gears as well as the bearings.

Reducer oil leakage and strange noise fault repair method.

1. Immediate replacement of the damaged housing.
2. Replace damaged or aging seals promptly.
3. Apply sealant on the combined surface of the box, and tighten the screws and bolts of the bearing cover at the combined position of the box to ensure its solidity.
4. Clean the gearbox in time and replace the corresponding lubricant.
5. Regularly check and adjust the gear meshing to ensure that the gear meshing surface is by the relevant specifications and standards.
6. Ensure that the axial clearance of the bearings is accurate.
7. Replace excessively worn or damaged gears and bearings immediately if found.

Belt slippage and belt breakage

Belt slippage and belt breakage arise.

1. Inadequate tension of the belt.
2. Excessive deviation from the design value of the friction coefficient between the drive pulley and the belt and from the actual requirements.
3. Overloading of the belt conveyor, as well as the belt being pressed when restarting the vehicle.
4. The quality of the belt used does not meet the requirements
5. The belt has deviated and the frame has been jammed
6. The belt is used beyond its service life and has serious aging problems
7. The tensioning force of the tensioning device acting on the belt is too high
8. The belt has been damaged or severely deformed in the course of use or has been damaged due to operational reasons.

Belt slippage and broken belts Solution.

1. Adjust the tensioning pulley.
2. Prohibit overload operation.
3. Raise the tension value of the belt.
4. Replace damaged or worn belts regularly.
5. Purchase belts of excellent quality and performance.
6. Increase the number of deflection rollers and protective devices to prevent runout.
7. Choosing a reasonable tensioning size for the tensioning devices acting on the belt.
8. The strict control of the transport requirements for large, heavy logistics.

What are the maintenance specifications during use?

Telescopic belt conveyors are widely used because of their flexibility, practicality, and small footprint. It can be found in industries such as logistics, express, factory, dock, grain, tea, tobacco, and so on. But how to use and maintain the telescopic belt conveyor, many users are not very clear, so I will from these two aspects, provide users with the use of the telescopic belt conveyor and maintenance specifications knowledge.

Specifications for the use of the telescopic belt conveyor.

1. Check that there are no obstructions on the conveyor that would damage the belt before switching off the machine. If so, remove the obstacle.
2. Observe whether the power supply is normal before shutting down, and if necessary, measure the deployment to ensure the normal voltage required by the equipment.
3. If the equipment is normal after inspection, it can be shut down and run.

Telescopic belt conveyor maintenance specifications.

1. Daily inspection of the drive motor and reducer for abnormalities.
2. Daily inspection of the belt for looseness and timely adjustment.
3. Monthly check if the conveyor belt is stretched and adjusted in time.
4. Monthly inspection of drum rotation for flexibility and timely repair.
5. Monthly checking of the coincidence of the drive sprocket and chain, timely adjustment, and adding lubricating oil to the chain.
6. Monthly need to remove dust from the control box to prevent malfunction.
7. To replace the clean internal gear oil after 100 hours of secondary use of the reducer, and replace it again every 2,500 hours after putting on new oil.
8. Do major maintenance once a year to check the extent of damage to accessories.