How to deal with worm gear reducer bearing damage

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First of all, the bearing and the shaft are broken at the same time, and it is basically determined that the bearing is damaged, resulting in the shaft damage. However, the bearing damage and the design and use of the reducer are related, and the main reasons for bearing damage are as follows:

1.The bearing selection is incorrect.

2.The reducer oil is not replaced in time, resulting in the wear of impurities on the bearing.

3.If the load or impact is too large, the shaft or gear can also be damaged.

4.The oil temperature is too high, causing the inner ring of the bearing to expand and run out of the inner circle.

5.The friction between the impurities in the gearbox and the bearing can also make the bearing run in a circle.

Wilco transmission depends on the cause of the bearing is bad, and the worm bearing is damaged. When the reducer fails, even if the reducer is well sealed, it is often found that the gear oil in the reducer has been emulsified, and the bearing has been rusted, corroded and damaged, which is because the gear oil is caused by the water condensation generated after the reducer is heated and cooled during the operation and shutdown process; Of course, it is also closely related to the quality of the bearing and the assembly process.

Summary. Hello dear. Worm gear reducer inspection and cleaning:

Preparation before disassembly. a) Cut off the power supply of the motor, remove the coupling protection and bolts, and shift the motor. b) Clean the shell of the reducer and check whether there are pear lines and other abnormalities.

b.Remove the upper cover of the reducer, remove the oil drain plug, and put the oil into the container of *. c.

Make the assembly mark and disassemble the bearing end cover. d.Remove the bolts on the upper cover and check that the bolts have a ** trap.

Put the washer on, screw the nut to the bolt, and place it properly. e.Hang down the upper cover and place it on the prepared backing plate, taking care not to hurt the joint surface and worm.

fWhen measuring the clearance, measure the bearing clearance of each part with a feeler gauge or lead wire method, and make a record. g.Tooth* clearance and tooth flank clearance are measured using the lead wire method.

h.Lift out the worm and worm gear, and mark the worm and worm gear for assembly. i.

Slowly lift the worm and worm gear out and put them on a dry wooden board.

Worm gear reducer inspection and cleaning:

Hello dear. Inspection and cleaning of worm gear reducer: preparation before disassembly.

a) Cut off the power supply of the motor, remove the coupling protection and bolts, and shift the motor. b) Clean the shell of the reducer and check whether there are pear lines and other abnormalities. b.

Remove the upper cover of the reducer, remove the oil drain plug, and put the oil into the container of *. c.Make the assembly mark and disassemble the bearing end cover.

d.Remove the bolts on the upper cover and check that the bolts have a ** trap. Put the washer on, the nut spring is ruined to the bolt, and the good place is placed.

e.Hang down the upper cover and place it on the prepared backing plate, taking care not to touch the joint surface and worm of the preparation. fWhen measuring the clearance, measure the bearing clearance of each part with a feeler gauge or lead wire method, and make a record.

g.Tooth* clearance and tooth flank clearance are measured using the lead wire method. h.

Lift out the worm and worm gear, and mark the worm and worm gear for assembly. i.Slowly lift the worm and worm gear out and put them on a dry wooden board.

Division. Diameter of two shafts.

The worm gear and worm are straight on both axes.

The specifications and dimensions of common ordinary worm gears and worms are examples: worm transmission, known bucket early modulus m=4The number of worm heads Z1=1, the number of worm gear teeth Z2=50, and the characteristic Sakuraite coefficient Q=10.

When the gears and bearings of the reducer are broken, they are characterized by noise, large clearance, and temperature rise.

The causes of bearing damage in the reducer are:

1: The bearing cavity is not cleaned or the grease is not clean. For example, the tiny rigid substances in the bearing cage are not thoroughly cleaned, and the bearing raceway is damaged during operation, resulting in excessive temperature rise and burning of the bearing.

Solution: The gearbox cleaning and maintenance machine uses the original lubricating oil of the gearbox to clean the gearbox, without adding any cleaning agent, and will not cause secondary pollution to the gear; The filtered oil can also be reused in low-end applications to reuse resources.

2: Due to the high temperature rise of the motor body, and the bearing is not replenished in time, the bearing lacks oil or even burns.

3: Improper bearing assembly, such as uneven knocking on the inner ring of the bearing during cold installation, causing the shaft to be worn, resulting in the loss of interference or interference between the inner ring of the bearing and the bearing, and the phenomenon of running the inner ring, and the uneven knocking of the end cover of the motor when installing the end cover causes the end cover bearing chamber and the outer ring of the bearing to be too loose to run the outer ring. Whether running the inner ring or the outer ring, it will cause the bearing to rise sharply and burn out, especially the failure of the inner ring will cause serious wear and bending of the shaft.

However, the intermittent running outer ring will not cause the bearing temperature to rise sharply under normal circumstances, as long as the bearing is intact, the phenomenon of intermittent running outer ring is allowed.

4: Due to the axial dislocation of the stator and rotor cores or the lack of accuracy after re-machining the rotating shaft, the inner and outer rings of the bearing are not on a cutting plane, which causes the temperature of the bearing to rise until it burns out after the "special strength".

5: The bearing is replaced, and the interference amount is large or the ovality exceeds the standard after the nesting of the motor end cover, which causes the ball clearance to be too small or uneven, resulting in an increase in friction during the operation of the bearing, and the temperature rises sharply until it burns out.

6: Bearing damage caused by the mixing of grease of different models.

7: The standby machine has not been running for a long time, the grease has deteriorated, and the bearing has rusted and has not been overhauled.

This has to be analyzed in many situations.

You don't give you a penny, you don't bother to tell you.

I'll tell you about it.

Gears are divided into hard teeth and soft teeth.

If the hard tooth gear is broken, it is a tooth punch or break, if it is a soft tooth, it is to grind the tooth surface flat, if the hard tooth surface is broken or broken during operation, it is easy to have an accident, if the bearing is broken, under normal circumstances, the temperature of the box will rise, or the shaft will be broken.

In general, there is noise, large gaps, and temperature rises.

If the gear is broken, the bearing is not necessarily broken, and 95% of the gear is also broken when the bearing is broken.

There is an abnormal sound or the reducer is stuck.

Gears: There are small pits or teeth.

Bearings: Excessive clearance or jamming.

The frequent failure or short service life of the pro-worm gear reducer may be due to the following reasons:1Excessive load:

The worm gear reducer can only withstand the specified rated torque, and if the load is too large, it will accelerate the wear and damage of parts, which will lead to a significant reduction in the life of the reducer in serious cases. 2.Potential structural issues:

Some reducers have structural defects in the design or manufacture, such as improper coordination of worm gear and worm, insufficient elasticity of the transmission chain, etc., which will lead to various faults and affect the service life under long-term use. 3.Potential Material Issues:

The engineering plastics or alloy materials selected for some products have poor strength and wear resistance, cannot effectively withstand long-term working loads, are easy to wear and deform, and will break in serious cases. 4.Improper maintenance:

If you use it for a long time without any maintenance, the grease and dirt will accumulate, and the moving parts will be seriously worn but not replaced in time, which will greatly reduce the service life of the reducer and cause frequent failures. 5.Harsh environment of use:

In the dusty, high humidity, vibration and temperature drastic use environment, the reducer is prone to various failures, and the service life will be short. It is necessary to choose a product with a high level of protection. The measures to change Zen and return to good grasp are as follows:

1.Choose a reducer with appropriate rated torque and speed, and avoid overload. 2.

Choose products with reliable quality, reasonable material and structural design. You can choose a product with a higher level of protection. 3.

Increase maintenance, regularly inspect lofts and replace worn and damaged parts in a timely manner. 4.Select the appropriate protection level according to the harshness of the use environment, and carry out additional protection if necessary.

5.Ensure that the input and output axes of the reducer are properly aligned to minimize stress concentration and vibration. 6.

Use grease or liquid wisely to ensure that the moving parts are fully lubricated. Replace the grease during the fixing period.

Reasons for slippage: First, the matching accuracy of the reducer input shaft hole and the servo motor shaft is not enough, and the second is that the unilateral bolt is fixed, and the row differential balance is not reached. The solution is to replace the reducer input shaft hole.

The input shaft hole of our Zhuochuang Transmission Chunchan adopts an integrated design, and the twin bolts of the gear are symmetrically distributed to achieve dynamic balance, and at the same time, the motor shaft is effectively prevented from slipping through the double bolts, and the power transmission with high precision and zero backlash is realized.

Summary. What is the cause of worm gear reducer track slippage.

Hello dear, 1. The belt model does not match the center distance, that is, the belt is too long.

2. The wrapping angle of the small pulley is too small, and the friction cannot be reached.

3. The load is too heavy.

If the adhesion of the car tires is insufficient, slippage will occur. The method of coping with front wheel slippage depends on the front wheel or rear wheel drive; Depending on the method of coping with rear-wheel slippage or rear-wheel drive; There is no difference in how to deal with rear wheel slippage. The most "natural" response to skidding is to slam on the brakes, which is actually the most dangerous.

What to do after slipping.

When the rear wheels slip, the rear of the car slides to one side, and even the body spins violently. This often happens when driving into a curve at a speed that is too high. Driving on smooth, rough or high arch roads, the brakes are too hard and the rear wheels will slip.

Rear wheel slippage is the most prevalent in front-wheel drive cars. Whether it's a front-wheel drive or a rear-wheel drive car, the way to deal with it is the same.

What is the cause of worm gear reducer track slippage.

What is the reason for the slippage of the worm gear reducer track, 1. The belt model does not match the center distance, that is, the belt is too long 2, the small pulley wrapping angle is too small, and the friction can not reach 3. The load is too heavy If the adhesion of the car tire is insufficient, slippage will occur. The method of coping with front wheel slippage depends on the front wheel or rear wheel drive; Depending on the method of coping with rear-wheel slippage or rear-wheel drive; There is no difference in how to deal with rear wheel slippage. The most "natural" response to skidding is to slam on the brakes, which is actually the most dangerous.

What to do if the rear wheel slips, the rear of the car will slide to one side, and even collapse the body and rotate violently. This often happens when driving into a curve at a speed that is too high. Driving on smooth, rough or high arch roads, the brakes are too hard and the rear wheels will slip.

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