Roller Chain Manufacturer Introduced That Chain Drives Are Widely Used

Due to the widespread use of chain drives, manufacturers and users often have friction on quality issues. How to identify their quality problems is the key to solving the problem. Therefore, Roller Chain manufacturers analyze the common problems that occur during the use of chain drives. And discuss, and put forward its solution for the reference of chain manufacturers and users.

1. Lubrication of chain drive
The proper maintenance of any chain drive requires proper lubrication. The wear and fatigue of the chain, the wear and corrosion of the sprocket, the inflexible links or the tight hinges are all related to lubrication. If the chain wears faster, the pin changes color, and the operation is not stable, indicating insufficient lubrication of the chain.
Under normal circumstances, it is recommended to use the following lubricants: temperature 200-400C use 20th oil, 400-1000C use 30th oil, 1000-1200C use 40th oil, 1200-1400C use 50th oil. The lubrication method can be manual. Brush or oil pot for oil lubrication. The environment requires chains with shells to be lubricated with shallow oil or dripping oil. If the operating temperature exceeds 3000C and cannot be lubricated with petroleum, it is more effective to use a solution of colloidal graphite dispersed in carbon tetrachloride or white kerosene.

Second, the faults in the chain drive and troubleshooting methods

1. The parallelism of the front and rear axes and the coplanarity of the sprocket:
In terms of wear life, the performance of the chain depends to a large extent on the correct installation of the front and rear axles and sprockets. The requirement is that the parallelism of the front and rear axes is within 1/300. The coplanarity of the front and rear wheels is 0.5-1.0mm / m. If the above problems are found during the operation of the chain, it should be adjusted in time.

2. Chain tension:
The tension of the chain is related to the sagging distance of the loose side of the chain. For horizontal and tilt drives with adjustable center distance, the sag of the loose side of the chain should be 2% of the center distance. The vertical transmission of the centerline or vibration load, the reverse transmission should make the chain more tensioned.

3. Chain and sprocket cooperation:
If the chain and sprocket are not well coordinated, the chain hinge may be worn and the pitch is extended. If there is a tooth jump, the chain should be replaced in time. If the sprocket is worn, it must be replaced to avoid damage to the new chain.

4. Chain jitter:
The cause of chain jitter is that the chain is too loose, the load is too heavy, or one or more links are not flexible. The solution is to install chain tensioning device or adjustable center distance. Reduce the load if possible.

5. Excessive noise during chain operation:
The reason for the excessive noise is that the sprockets are not coplanar; the chain is too tight or too small; insufficient lubrication; the chain and sprocket are worn; or the chain pitch size is too large.
The solution is to check the coplanarity of the front and rear axes parallel to the sprocket to correct it. Adjust the center distance and tensioning device to obtain proper tightness and ensure lubrication to the workpiece.

6. Side grinding of chain plate:
If the inner surface of the inner link chain plate is badly worn, it means that the transmission is not aligned. The solution is to check the alignment of the shaft and sprocket. If there is no problem with the installation, it can be observed whether the rigidity is insufficient due to excessive load deformation during operation.

7. Chain plate fatigue:
When the load is too large and exceeds the fatigue limit of the chain plate, the chain plate will fatigue and produce micro cracks around the hole until it breaks.
The solution is to reduce the load or replace the chain with large carrying capacity.

8. Pin shaft wear:
Usually pin wear is caused by insufficient lubrication. Always check the lubricant for abrasives or change the lubrication method.

9. Pin glue:
Pin glue is generally caused by insufficient oil supply. If only one end is glued, check the installation of the shaft and sprocket, whether the shaft is parallel, whether the sprocket is coplanar, and whether the shaft and sprocket move during operation.

10. Sprocket tooth wear:
If there is obvious wear on both sides of the sprocket teeth, the transmission alignment is not good. If there is a "bent groove" indicating excessive wear, the sprocket should be replaced, or the sprocket can be reversed so that the lightly worn side faces the chain. The excessively worn sprocket and chain are replaced together.

 

information about Roller Chain : https://www.hzqjchain.com/product/roller-chains/

How To Repair Roller Chain

Before a car with a rear dial dials the chain to the state of the smallest wheel pair and the smallest wheel, the Roller Chain is looser and easier to operate.

After the chain is cleaned and lubricated, slowly turn the chainwheel. The chain links that come out of the rear dial should be able to be straightened. If some chain links still maintain a certain angle, it means that it does not move smoothly. It is a knot and should be taken. Adjustment. It is found that the damaged link must be replaced in time. The manufacturer of Roller Chain recommends strictly distinguishing three kinds of pins and using connecting pins. Pay attention to the straightness when using the chain, so that it is not easy to distort the thimble. Careful use of tools can not only protect the tools, but also achieve good results. Otherwise, the tools are easily damaged, and the damaged tools are more likely to damage the parts, which is a vicious circle. 

information about Roller Chain : https://www.hzqjchain.com/product/roller-chains/

The General Performance Of Roller Chain Is Strong

Roller Chain advantages:
1. The roller chain effectively transmits power
Because it will not slip. The speed ratio is fixed and the absolute speed ratio.

2. Roller chain efficiency 98%
Under good lubrication, the efficiency of any load is quite good. This efficiency can be maintained throughout the life limit.

3. Universality of roller chain
It can still operate effectively in harsh environments such as dirt, oil, and gas mixture. A single power source can drive multi-axis output at the same time, and the speed can be adjusted by the ratchet gear.

4. Ability of roller chain to absorb vibration
The chain itself is flexible, and when the oil film is stored in each part, it can protect the shaft and motor from impact force and strain.

5. Light weight and small space
The width is narrow, it can be installed in a very small space, and the unit takes less space to transmit horsepower.

6. Durable roller chain
Because the load is shared by many teeth on the ratchet gear, each single gear has a small force to ensure life.

 

 

information about Roller Chain : https://www.hzqjchain.com/product/roller-chains/

Roller Chain Pitch Requirements

Roller Chain metal mesh belts have a variety of specifications. Depending on the volume of the customer's product and the weight of the conveyor, the appropriate chain pitch and distance between strings can be selected. The pitch of the conveyor chain used by the conveyor belt is generally 25.4, 31.75, 38.1, 50.8, 63.5, 76.2, 101.6mm, etc., are all special-purpose chains for the transportation of double-end large balls. The materials are carbon steel and stainless steel. If used in harsh environments such as high temperature and corrosion resistance, you must choose 201, 304, 316 and other materials according to requirements. .

Because the metal conveyor belt is a customized product, customers must carefully measure the specific data of the old product when replacing the new conveyor belt to ensure the practicability of the new mesh belt. There are also many customers who have not used the metal conveyor belt. I do n’t know anything about it. At this time, I need to communicate with the sales staff carefully, make clear to the sales staff their own ideas and the size of the conveyed product, and listen to the sales staff ’s suggestions for reference.

The chain mesh belt and the chain plate mesh belt are driven by the chain on both sides, so you need to know the pitch and material of the chain. The B-shaped mesh belt and the Great Wall mesh belt are directly driven by the chain wheel. The data required for the chain mesh belt includes the mesh pitch, pitch, wire diameter, string diameter, string spacing, chain pitch, material, total width, etc. The data required for the chain mesh belt includes pitch, plate thickness, string The shaft diameter, material, width, etc., because each chain pitch of the chain plate mesh belt needs a string of shafts, so the chain plate pitch and the chain pitch are the same. The relevant data of the Great Wall mesh belt (horseshoe chain) mainly include data such as material, plate thickness, plate width, string diameter, string spacing, upper mouth width and lower mouth width.

 

 

 

information about Roller Chain : https://www.hzqjchain.com/product/roller-chains/

Lubricant Benefits Of Using Roller Chain

1.Lubricant flow

Each hinge of the roller chain is a radial bearing, so it must be fully and effectively lubricated to obtain the highest wear life. In addition to sufficient lubrication, it can reduce the wear of the pin and sleeve sound, but also make the sprocket and chain roller lie smoothly, slow down the impact of the roller and sprocket, and dissipate heat, and remove the debris and foreign matter And prevent rust.

Before the chain engages with the sprocket, lubricating oil should be applied to the upper part of the chain plate of the chain sag. Gravity and centrifugal force cause the lubricant to flow to the pins and sleeve surfaces that need lubrication. Lubricants on the edges of the chain plates also provide lubrication to the pin and sleeve surfaces.

2. Characteristics of lubricant:

Roller Chain lubricants should have the following characteristics:

A. Low enough viscosity to allow the lubricant to penetrate the surface to be lubricated;

B, can maintain sufficient viscosity of the lubricant film under normal bearing pressure or add appropriate additives;

C, clean and free of corrosive substances;

D. Under normal working conditions, it has the ability to maintain lubrication quality. Generally, high-quality lubricants that are extracted from petroleum and do not contain detergents can meet these requirements. Detergents are generally not required, but it is best to include additives that prevent foaming, rust, and increase the strength of the oil film.

 

 

information about Roller Chain : https://www.hzqjchain.com/product/roller-chains/