The telescopic belt conveyor belt machine maintenance and maintenance

V belt, chain transmission and coupling to set up the shield. Its position and fixed way to consider when maintenance is easy to move all of the open air conveying confidential cover cover. This kind of outer garment is made from 16 corrugated galvanized steel sheet, in order to protect the conveyor and material is not affected by bad weather conditions. Housing can be made into arch, splicing, open to facilitate the inspection.

Each conveyor head the roller are equipped with strong springs of rod and compound rubber scraper. In this position can make sweeping down from the Belt Conveyor surface material could fall into the unloading chute.

Empty section sweeper for plough plate, put in front of the vertical tension device and the tail in the front of the platen backhaul conveyor belt. Each moldboard is equipped with a safety chain in order to prevent the one thousand accident moldboard moving with the Belt Conveyor.

When the conveyor multipoint discharge along the way, can use electric mobile CheWu discharger discharge. Discharge groove and discharge position must carry on the design, also need the relevant design data, flow chart of equipment to attach on this part of the technical requirements.

When the horizontal conveyor need to dump in the middle, can use plough tripper. On the design flow chart of data or attached to show that the type of moldboard used, discharge conditions and indicate the unilateral or bilateral discharging.

The Angle of the tripper plough moldboard will be limited to 35 degrees. All equipped with adjustable moldboard rubber scraper; Under the moldboard is equipped with a wide metal plate bracket with conveyor belt conveyor belt.

Into Angle to load the material in the conveyor belt running direction will only add to wear on the surface of the tape. The impact on the tape, deviating from the center of the raw material, can make the belt along the roller to the other side of the rotating up and running deviation, can lead to damage of tape and glue, and local side adhesive wear. Than the big, sharp edges and materials, to produce certain impact on fast run tape or sliding, also will be cut and the wear surface. General method is to reduce the wear, first put powder material on the tape, then load the big materials, powder material is to play the role of a cushion, thereby protecting the tape.

Unloading plough plate can be controlled by compressed air or gravity lever lifting. When operating conditions for mobile unloading plough plate, can be installed on the plow tripper rope and the winch, the plough wu discharger fixed position in each discharge.

All discharge funnel are made of the steel plate. The minimum thickness of 6 mm, can be properly strengthened. And using solid support bearing. In the upper part of the funnel discharge the roller edge width is smallest conveyor belt width and 230 mm, in order to prevent damage to the conveyor belt.

The safety of the introduction of conveyor belt conveyor line specification

Belt Conveyor safety norms, this article is mainly about conveyor line, then the following to introduce specific.

Conveyor line safety codes are:

(1) the conveyor line equipment must be interlocking, interlocking device are strictly forbidden to arbitrarily change or dismantled.

(2) using more than one conveyor jointly complete the delivery of materials or some sort of process, should set up central central control console.

(3) the conveyor line of control must be able to ensure the accuracy of the transmission performance and operation is reliable, can quickly cut off power supply in case of an emergency, conveyor can safely downtime.

(4) the central console is used to realize accurate control, so you have to set up the sound and light signals, to display a single switch action starting, stopping and accident situation.

(5) the conveyor line conveyor should follow the inverse direction of material flow transportation line by machine starting, along the direction of material flow delivery delay line by machine downtime. On the premise of guarantee the material overflow, can also allow starting at the same time or brake at the same time.

(6) conveyor channel between the minimum width and the height of the escalator, platform side guard railing should abide by the provisions of the relevant standards.

(7) in receiving conveyor conveyor line throughput must be greater than or equal to the feed conveyor throughput. Reversible when receiving and feeding conveyor throughput should be equal, but when load reverse feeding receiving conveyor throughput should be feed conveyor throughput of two times.

(8) at the transfer point charging station near the job position, must have one or more emergency stop switch or device, it is strictly prohibited to pile up materials and other products.

(9) remote start conveyor must be set when the sound and light signals, and the signal should be located in the operator capacity and range.

(10) conveyor line should be set in the normal lighting or portable lighting, risk in explosive gas, dust, or when you are working in a mixture of ring, should choose safe lighting lamps and lanterns.

(11) conveyor such as downtime because of an accident, should be checked in advance before starting again, find out the reason of this parking timely troubleshooting.

(12) conveyor shut down more than a month before reuse, must by the supervision of the personnel in charge of mechanical and electrical technology to test all the mechanical and electrical equipment inspection, check there is no problem to use.

(13) conveyor motor row between channels, high-speed operation should not rest stay near or drive.

(14) by the conveyor or relevant work indoor store inflammable, explosive materials are strictly prohibited.

(15) conveyor belt installation after do not allow the use of fire, electric welding processing frame, with special needs should take necessary precautions.

(16) the running conveyor, conveyor belt if should look down on fire extinguishing again, if the roller fire should be fire first stop again.

Practical installation techniques and use of belt conveyor

Belt Conveyor at the end of the standard in order to ensure the conveyor belt is always at the center of the roller and the roller run online, installing a roller, frame and rollers, must meet the following requirements:

Set hang hang a conveyor belt conveyor belt, conveyor belt first article spread on no-load period of roller, wai after driving drum, apply on the roller of overloading section again. Hung a ribbon can use 0.5 1.5 t hand winch. In article taut band connection, the tension device of the drum should be moved to the limit position, on the car and spiral tension device to pull to move in the direction of transmission device; And pick up device to make the vertical roller moved to the top. Before the taut conveyor belt, should be installed reducer and motor, good braking device with tilting conveying confidential. Belt conveyor after installation, the need for idling of commissioning.

Support structure must be in a straight line, and keep the horizontal level. To this end, after driving drum and roller rack installation, should be the center line and level of conveyor final alignment. Then frame fixed in the base or on the floor. After fixed belt conveyor, can furnish the feeding and discharging device.

With the rapid development of science and technology, conveyor has spread to every corner of the human life and areas, use is also more and more widely. Save a lot of time for mankind, labor, People's Daily life is becoming more and more inseparable from the conveyor. Conveying machinery according to the operating mode is divided into: 1:2: belt conveyor screw conveyor 3: bucket elevator 4: roller conveyor 5: measuring conveyor 6:7: plate chain conveyor mesh belt conveyor, focus today about the installation of belt conveyor.

Installation engineering of belt conveyor, belt conveyor frame installation is from the frame, then install sections progressive middle frame, finally furnish tail stock. Before installing the rack, the center line of the first to pull on the length of the conveyor, keep the conveyor centerline in line is the important condition of normal operation of conveyor belt, so when installing sections frame, must aim at the centerline, leveling, as well as which frame to the centerline of the margin of error, the captain per meter is + / - 0.1 mm. But on the conveyor length error must not exceed 35 mm to the center of the frame. When all the single section setting and alignment, can connect every single day.

Install the roller in the frame, transmission device and tension device installed, can be installed up and down roller roller frame, make the conveyor belt has slowly to the curved and ways of the roller spacing for 1/2 ~ 1/3 of the normal roller spacing. Roller is installed, should make its rotary flexible light.

Driver installation drive, must pay attention to make the belt conveyor and belt conveyor drive shaft centerline vertical, make the middle of the width of the driving drum with the centerline of the conveyor, the axis of the gear reducer and parallel transmission axis. At the same time, all shaft and cylinder should be leveling. Axis horizontal error, according to the conveyor width, allowed in the range of 0.5 1.5 mm. In the installation drive at the same time, can install tail wheel tensioning device, such as tension device of drum axis, should be perpendicular to the center line of belt conveyor.

Dynamic analysis of belt conveyor main problem to be solved

Conveyor dynamic analysis of the most important feature is the change in the previous study each component individually designed patterns to various components of the conveyor the best way to work together for the ultimate goal, the Belt Conveyor as an organic whole to conduct a comprehensive analysis, find the optimal combination of model and control strategy in the economic, reliable conditions, to improve the overall performance of the conveyor.
Dynamic analysis in modern belt conveyor design to solve the main problem between the following aspects:
(1) Calculate the transport conveyor driven in operation of the peak value and the tension condition occurs. Conveyor drive tension peak is generally several times its normal operating tension or even ten times, and according to the way the previous static design tension value calculated is much smaller than the actual value, we can only increase the safety factor to ensure delivery safe operation of the machine. In the absence of reliable analytical tool in the case, the use of empirical methods to determine the factor of safety is often made too large, it will inevitably result in increased costs, waste of investment.
(2) analysis of the vibration conveyor belt running it special law. Vibration is causing tension increase was mainly driven conveyor, belt accident is caused by the culprit, find out the rules for the effective control of its dynamic tension the belt of great significance.
(3) study the boundary conditions on the conveyor belt vibration regulation impact. Boundary conditions conveyor belt means all affect the dynamic characteristics of internal conditions and external conditions, such as driving, tensioning devices, roller, load and so on. To analyze the changes of these boundary conditions on the vibration impact and vibration conveyor find optimal hop's best special form of the boundary conditions.
(4) the boundary conditions optimized working conveyor through dynamic analysis to determine the best configuration for transport subsystem.
(5) based on comprehensive analysis of the results of the evaluation, selection and reasonable belt conveyor structure and configuration, so that in performance and comprehensive economic indicators optimal.

Controllable Starting conveyor technology

With the Belt Conveyor, the traditional motor direct start or combined starter motor and coupler has far can not meet the requirements. Long distance, high speed belt conveyor as the starting load is large, and the operating speed is higher, it must be controlled during start, the speed curve starting at the best smooth start, the starting time, starting acceleration control within the allowable range .
According to China's relevant standards, starting acceleration shall not exceed 0.3 s, in order to reduce the dynamic load and instantaneous shock, conveyor belts and other meta while avoiding damage to components. Carried out abroad, a lot of research work, developed a corresponding controllable starting device, such as: frequency control devices, differential gear train viscous speeder, hydraulic speed control devices.

Belt conveyor installation technical requirements

1 Subject Matter and Scope
Standard Rules on the Belt Conveyor of the belt conveyor ( hereinafter referred to as belt conveyors ) in the drawing , production, equipment , use, maintenance and other aspects of the basic security needs.
This standard applies to the delivery of all kinds of massive , granular materials and other loose items into a belt conveyor.
For transportation of flammable , explosive, toxic, corrosive , radioactive and other materials in addition to abide by the belt conveyor should abide by the standards appropriate for the safety standards.
2 citation standard GB4064 electrical equipment safety guidelines GB10595 depicting belt conveyor belt skills condition GBJ232 Electrical Equipment for construction and inspection standards
Three general rule
3.1 workpiece Screw conveyor under normal conditions should be satisfied with the stability and strength.
3.2 Electrical equipment necessary to fit the device depicted GB4064 and GBJ232 rules.
3.3 depicts or production units without approval, the user should not be affected belt conveyor original drawing , production, equipment safety needs change.
3.4 Belt conveyor is necessary according to the material properties and the amount of demand for transport use , not overloaded use , it is necessary to avoid congestion and overflow , adhere transporting dredge .
a. Conveyor belt should fit specific load and transport properties of materials to meet the width ;
b. Belt conveyor inclination portrayed as necessary to avoid the material in the slip under normal operating conditions or rolled ;
c. Belt conveyors should be set to ensure uniform feeding manipulation device ;
d. Hopper or chute wall slope , orientation and scale of the discharge port is necessary to be able to ensure that the material automatically by gravity flow ;
e. By the feed point should be located in the horizontal section , and set the guide plate . Necessary by the feed point located in the skew segment, assisted loading equipment to be located ;
f. Tensioning device should be installed straight section blanking plate ;
g. Feed point should fall by impact of the approach adopted .
3.5 transporting viscous material , the drum looks, backhaul segment should be set with a surface adapted to cleaning equipment . Skew segment conveyor belt tail pulley block material should be set before the scraper . Eliminating all of which can lead to the risk of delivery with a deviation .
3.6 diagonal belt conveyors should be installed to avoid speeding or reversing safety equipment. This device is the power to intercept or rendering problems when the maintenance of effect .
3.7 on the conveyor belt moving some of either manual or self-propelled stopper should be installed after parking device.
3.8 prohibits officers from no special lanes across the conveyor belt or from below through .
3.9 across the conveyor belt above the work platform or channel shall be installed to avoid material fall protection equipment .
3.10 bolt convergence necessary skills requirements by depicting disposal , and use special tools to tighten.
3.11 belt conveyor parts are often easy to pinch someone near to protective measures should be strengthened .
3.11.1 belt conveyor head . Tail and tensioning device redirection site site and the adjacent two folding rollers turn off when at beyond 3 °

What procedures belt

1, the stationary Belt Conveyor device means the device should be the rule in a fixed basis. Mobile conveyor before officially running wheels should live with a triangular or wedge brakes stopped . Avoid walking in the attack , more than one conveyor parallel operation, the machine and the machine between the machine and the wall should be between one meter channel.
2, the Screw conveyor shall examine each application before work somewhat , tape hasp and load device is not a normal , protective equipment is not completely . Tape tension must be adjusted before launching into the appropriate level.
3 , belt conveyors should be unloaded start. Such as working properly before feeding . After the first car to stop feeding .
4 , rare sets conveyor tandem operation, should be the beginning of the discharge end , the sequence starts. Full work only after the feeding . 5 , showing the tape operation deviation representation should adjust parking not far-fetched to use , to avoid wear and tear of marginal and add load.
6 , the working environment and sent the material temperature not higher than 50 ℃ and below -10 ℃.
7 , transporting belt stop for pedestrians or by people .
8 , it is necessary to suspend parking before feeding, unloading and other material on the belt to make deposits before parking .
9 , conveyor motors have outstanding insulation is necessary . Mobile conveyor cables do not Luanla and dragging . Motor to solid ground .
10 , prohibit the belt slipping a hand to pull the belt , to avoid seizures trouble.

Conveyor debugging

Debugging Belt Conveyor steps:
⑴ careful testing after installation of the equipment belt conveyor, to meet design requirements.
⑵ The reducer, moving parts corresponding filling oil.
⑶ belt conveyor installation to meet the requirements of a single device for manual work test, and debug belt conveyors combine action to meet the requirements.
⑷ commissioning of the electrical part of the belt conveyor. Including the action of conventional electrical wiring and commissioning, the equipment with good performance, to meet the design features and status.

Belt conveyor running operation

1 Close the main power switch, check the device power is being fed properly and the power indicator is lit. To normal after the next step.
2 Close the power switch on each loop, check whether it is normal. Under normal conditions of: device does not operate, belt conveyors running light is not on, inverter and other equipment, power indicator light, the inverter display panel shows the normal (no fault code is displayed).
3 in accordance with the process starts all electrical equipment in turn, starting on a normal electrical equipment (motors or other equipment has reached the normal speed, the normal state) and then the next one electrical device startup.
Belt Conveyor operation, is transported goods must comply with the requirements of the design objects, to comply with belt conveyor design capabilities. Secondly, we must pay attention to all categories of personnel not touch the moving parts of the conveyor belt, non-professionals are not free to contact with electrical components, control buttons, etc.. Finally, in the belt can not run the inverter circuit after the class, such as the identification of maintenance needs, you must stop the inverter in case of operation, otherwise it may damage the drive.
Stop running belt, press the Stop button to stop all pending system only after cut off the mains.