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Helical bevel gear reducer

Helical bevel gear reducer

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Our  K series is a bevel gear reducer with a high-strength cast iron case. This series of reducer is designed and manufactured on the basis of modular combination system. There are many motor combinations, installation forms and structural schemes. The transmission ratio is finely graded to meet different working conditions, realize electromechanical integration, high transmission efficiency and low energy consumption. , superior performance.

 K series spiral bevel gear reducer ofthe hard tooth surface gear is made of high quality alloy steel, the surface is hardened by carburizing and quenching, the grinding teeth are finely processed, the transmission is stable, the noise is low, and the bearing capacity is large. Low temperature rise and long life. Widely used in industrial metallurgical equipment, building materials industry, chemical, mining, petroleum, transportation, paper, sugar, engineering machinery, etc.

 Helical bevel gear reducer

Helical bevel gear reducer

 K series spiral bevel gear reducer Feasible installation arrangement:

Foot mounting or flange mounting

B5 or B14 flange mounting

Solid shaft or hollow shaft

Hollow shaft with flat key connection, expansion disk, splined hollow shaft

Helical bevel gear reducer

What are the working principles of the speed reducer? In fact, (speed reducer) reducer is simply
to increase the torque to reduce the speed! The reducer is generally used for transmission
equipment with low speed and high torque. The motor, internal combustion engine or other
high-speed power is driven by the gears with few teeth on the input shaft of the reducer to
mesh the large gear on the output shaft to achieve the purpose of deceleration. The reducer
will also have several pairs of identical principle gears to achieve the desired deceleration effect
. The ratio of the number of teeth of the large and small gears is the transmission ratio.
Reducer products have a wide range of applications. Food light industry, electric machinery,
construction machinery, metallurgical machinery, cement machinery, environmental protection
machinery, electronic appliances, road construction machinery, water conservancy machinery,
chemical machinery, mining machinery, transportation machinery, building materials machinery
, rubber machinery, petroleum machinery and other industries.
Helical bevel gear reducer
The following are commonly used helical bevel gear reducer classifications: 1. Hard tooth surface helical gear reducer 2, small micro gear reduction 3, hard tooth surface cylindrical gear reducer 4. Planetary gear reducer (servo planetary reducer) 1) The ring gear is fixed, the sun gear is
active, and the planet carrier is passive. As can be seen from the demonstration, this
combination is a speed reduction transmission, usually the transmission ratio is generally 2.5 to
5, and the steering is the same. Soft tooth surface reducer 5, three ring reducer 6, crane three-in-one reducer 7, worm gear reduction 8, shaft mounted hard surface reducer 9, stepless speed changer
Hard-toothed helical gear reducer I believe that everyone knows that there are imported SEW
reducer, Japan Sumitomo reducer, Siemens Flander reducer and British Bolton reducer, Mai
transmission reducer, Nord reducer and so on. The small micro gear reducer is 6W to 4000W.
It can be called a small micro gear reducer. For example, the well-known Taiwan City State Red
ucer, Shiyuan Reducer, Haoxin Reducer, Dongli Reducer, Mai Transmission Reducer, Ming
Spring speed reducer, Wanxin reducer, etc. are all of good quality, and the speed reducer
service is better than others.
Helical bevel gear reducer
The main feature of the helical bevel gear reducer is the reverse self-locking function.
Our reducer can achieve the oil-free export quality. The worm gear reducer can have a large
reduction ratio. The input shaft and the output shaft are not on the same axis. Not on the same
plane. However, the volume is generally large, the transmission efficiency is not high, and the
accuracy is not high. The harmonic drive of the harmonic reducer is the elastic deformation
controlled by the flexible element to transmit motion and power. The volume is small and the
precision is high, but the disadvantage is that the flexible wheel has limited life and is not
impact resistant. The rigidity is compared with the metal parts. difference. The input speed
cannot be too high. The planetary reducer has the advantages of compact structure, small
return clearance, high precision, long service life and large rated output torque. But the price is
slightly more expensive.
Helical bevel gear reducer
Fault handling Due to the poor operating environment of the reducer, there are often faults
such as wear and leakage. The most important ones are: 1. The bearing chamber of the reducer is worn, which in turn includes the wear of the bearing
housing of the housing, the bearing chamber of the housing, and the bearing chamber of the
transmission; 2. The shaft diameter of the gear shaft of the reducer is worn, and the main wear parts are in
the shaft head and keyway; 3. The bearing position of the reducer drive shaft is worn; 4. The reducer joint surface leaks.
According to different types of reducers, the industry I have done is a relatively traditional worm
gear and hardened gear reducer. The general principle of these two reducers is achieved by
friction drive and rolling drive. Common worm gear drive It is driven by friction, which is
realized by rolling the worm, meshing the worm wheel and intermediate friction, so the
transmission efficiency is low (the friction will generate heat). Because of the friction, the
service life is relatively short (wearing), and the hard-toothed gear The reducer is driven by
rolling, so the efficiency will be high, except for the S series, because the S series is friction +
rolling combined
Helical bevel gear reducer

Throughout all the reducers, there are two working principles of friction and rolling, but how to
achieve the specifics. The following is a rough classification of the working principle of the
reducer that I understand. If there are errors and deficiencies, please correct the friction drive
with worm gear. Reducer, S series hardened surface reducer (middle part) rolling drive, R, F
series hardened reducer (parallel rolling); K series hardened reducer (bevel gear rolling drive +
parallel rolling) planetary reduction Machine (planetary rolling mode) cycloidal pinwheel reduce
r (planetary rolling) harmonic reducer, etc.
 

Due to the harsh operating environment of the reducer, there are often faults such as wear and
leakage. The main ones are: 1. The bearing chamber of the reducer is worn, which in turn includes the wear of the bearing
housing of the housing, the bearing chamber of the housing, and the bearing chamber of the
transmission; 2. The shaft diameter of the gear shaft of the reducer is worn, and the main wear parts are in
the shaft head and keyway; 3. The bearing position of the reducer drive shaft is worn; 4. The reducer joint surface leaks.

For the leakage problem, the traditional method needs to disassemble and open the reducer,
replace the sealing gasket or apply the sealant, which is not only time-consuming and laborious
, but also difficult to ensure the sealing effect, and leakage will occur again during operation.
The polymer material can be used to treat leakage on site. The material has excellent adhesion,
oil resistance and 350% elongation, which overcomes the impact caused by the vibration of
the reducer, and solves the problem of leakage of the reducer for the enterprise.
Helical bevel gear reducer

NMRV worm gear reducers, also known as RV reducers, are from Italy, and before 2014, users
were used all over the world. However, with the rise of automation equipment, the precision
and wear resistance of the reducer are very high. The precision and wear resistance of the
NMRV worm reducer are beyond control. However, NMRV worm gear reducers are still very
popular on many mechanical devices, so there are still many fans for their small size and
multi-directional installation optimization.

The 025 specification models are: NMRV025 reducer and NRV025 reducer, which is the smallest
of the NMRV worm gear reducers. The volume is only as large as the palm of an adult, but the
price is not the cheapest. Many people think that the reducer with a small size is cheaper.
Because of its small size, it will be more complicated in manufacturing.

Helical bevel gear reducer

The speed reducer combines the speed of rotation and the transmission of torque between the
prime mover and the working machine or the actuator, and is widely used in modern machinery
. According to the application, the reducer can be divided into two types: universal reducer and
special reducer. The design, manufacture and use characteristics of the two are different.

The reducer is a separate closed transmission between the prime mover and the working machine.
It is used to reduce the speed and increase the torque to meet the working needs. In some
cases, it is also used to increase the speed, called the speed increaser.
When selecting the reducer, according to the selection conditions of the working machine,
technical parameters, performance of the power machine, economy and other factors, compare
the outer dimensions of different types and types of reducers, transmission efficiency, price,
etc., select the most suitable reducer. The reducer is a relatively precise machine that is used
to reduce the speed and increase the torque.
Helical bevel gear reducer

development trend: In the 1970s and 1980s, the world's reducer technology has developed greatly and is closely
integrated with the development of the new technological revolution. The development trend
of universal reducers is as follows: 1. High level and high performance: Cylindrical gears generally adopt carburizing and quenching
, grinding teeth, and the bearing capacity is increased by more than 4 times. The volume is
small, the weight is light, the noise is low, the efficiency is high, and the reliability is high; 2, building block combination design: the basic parameters use the priority number, the size
specifications are neat, the parts are versatile and interchangeable, the series is easy to expand
and the pattern is refurbished, which is conducive to organizing mass production and reducing
costs
3, the variety of types, variant design: get rid of the traditional single base installation, add
hollow shaft suspension, floating support base, motor and reducer integrated connection,
multi-directional mounting surface and other different types, expand the scope of use .
The main factors driving the increase of the speed reducer are: 1. The theoretical knowledge is becoming more and more perfect, and it is closer to reality
(such as gear strength calculation method, shape modification technology, deformation
calculation, optimization design method, root smooth transition, new structure, etc.); 2, the use of good materials, the general use of a variety of high-quality alloy steel forgings,
material and heat treatment quality control level; 3. The structure design is more reasonable; 4. The processing accuracy is improved to ISO5-6 level; 5, bearing quality and life expectancy; 6. The quality of lubricating oil is improved.
Helical bevel gear reducer
Since the reform and opening up, China has introduced a number of advanced processing
equipment, and gradually introduced the design and manufacturing technologies of various
high-speed and low-speed heavy-duty gear devices through the introduction, digestion and
absorption of foreign advanced technologies and scientific research. The material and heat
treatment quality and gear machining accuracy are greatly improved. The manufacturing
precision of general-purpose cylindrical gear can be improved from 8-9 of JB179-60 to 6 grade
of GB10095-88. The manufacturing precision of high-speed gear can be stabilized at 4-5. level.
After the partial reducer adopts the hard tooth surface, the volume and quality are obviously
reduced, and the bearing capacity, service life and transmission efficiency are greatly improved,
which plays a great role in energy saving and improving the overall level of the host.
The high-speed gear reduction (increasing) speed designed and manufactured by China has
reached 42,000 kW, and the peripheral speed of the gear is above 150 m/s. However, the
technical level of most of China's reducers is still not high, old products cannot be replaced
immediately, and the transition between new and old products will take a long time.

Features: The gear reducer has the characteristics of small size and large transmission torque. The gear
reducer is designed and manufactured on the basis of the modular combination system. There
are many motor combinations, installation forms and structural schemes. The transmission
ratio is finely graded to meet different working conditions and realize electromechanical
integration. The gear reducer has high transmission efficiency, low energy consumption and
superior performance. The cycloidal pinwheel reducer is a transmission type that adopts the
principle of cycloidal pin gear meshing planetary transmission. It is an ideal transmission device
with many advantages, wide application and forward and reverse operation.
Analysis of the reasons for the oil leakage of the reducer: 1. The pressure difference between the inside and outside of the reducer: During the operation
of the reducer, the friction of the motion pair is heated and affected by the ambient temperature,
so that the temperature of the reducer rises. If there is no vent hole or the vent hole is blocked,
the pressure inside the machine gradually increases. The higher the internal temperature, the greater
the pressure difference from the outside, and the lubricating oil leaks from the gap under the
pressure difference. 2. The structure design of the reducer is unreasonable. 1) Check that the hole cover is too thin, and it is easy to deform after tightening the bolt, so that the
joint surface is not flat and oil leakage from the contact gap; 2) During the manufacturing process of the reducer, the casting is not annealed or aging treated, the
internal stress is not eliminated, deformation is inevitable, and a gap is generated, resulting in
leakage; 3) There is no oil return tank on the tank, and the lubricating oil accumulates in the shaft seal, the
end cover, the joint surface, etc., and leaks from the gap under the pressure difference; 4) The design of the shaft seal structure is unreasonable 3. Too much fuel: During the operation of the reducer, the oil pool is agitated very much. The
lubricating oil splashes everywhere in the machine. If the amount of oil is too much, a large amount
of lubricating oil will accumulate in the shaft seal, joint surface, etc. Causes a leak. 4, improper maintenance process: in the equipment maintenance, due to the incomplete removal of
dirt on the joint surface, or the improper selection of sealant, the direction of the seal is reversed,
the seal is not replaced in time, etc. will also cause oil leakage.

Helical bevel gear reducer

The reducer is a separate component consisting of a gear drive, a worm drive, and a gear-worm
drive enclosed in a rigid housing. It is often used as a reduction gear between the prime mover
and the work machine. The function of matching the rotational speed and transmitting torque
between the prime mover and the working machine or the actuator is widely used in modern
machinery.
Introduction: The reducer is generally used for transmission equipment with low speed and high torque. The
motor, internal combustion engine or other high-speed power is driven by the gears with few teeth
on the input shaft of the reducer to mesh the large gear on the output shaft to achieve the purpose
of deceleration. The reducer will also have several pairs of identical principle gears to achieve the
desired deceleration effect. The ratio of the number of teeth of the large and small gears is the
transmission ratio.

classification: The speed reducer plays a role of matching the rotational speed and transmitting torque between
the prime mover and the working machine or the actuator, and is a relatively precise machine. The
purpose of using it is to reduce the speed and increase the torque. It has a wide variety of models,
different models, and different types of uses. There are many types of reducers. According to the
transmission type, they can be divided into gear reducers, worm reducers and planetary gear
reducers. According to the different drive stages, they can be divided into single-stage and
multi-stage reducers. According to the gear shape, they can be divided into cylindrical gears. ,
bevel gear reducer and cone-cylindrical gear reducer; according to the transmission arrangement
can be divided into expansion, split and coaxial reducer.

effect: 1. Reduce the speed and increase the output torque at the same time. The torque output ratio is
multiplied by the motor output and the reduction ratio, but it should be noted that the rated torque
of the reducer cannot be exceeded. 2. Deceleration also reduces the inertia of the load, and the reduction of inertia is the square of the
reduction ratio.
Oil replacement: After the cooling, the viscosity of the oil increases and the oil is difficult to drain. The speed reducer
should change the oil at the operating temperature. 1. Turn off the power to prevent electric shock. Wait for the reducer to cool down without burning
danger; Note: The helical bevel gear reducer should remain warm when changing oil; 2. Place an oil pan under the oil drain plug; 3. Open the oil level screw plug, the aerator and the oil drain plug; 4. Remove all oil; 5. Install the oil drain plug; 6. Inject new oil of the same grade; 7. The amount of oil should be consistent with the installation location; 8. Check the oil level at the oil level screw plug; 9. Tighten the oil level plug and ventilator.

 

Model 37 47 57 67 77 87 97 107 127 157 167 187
Structure K,KA,KF,KAF,KAZ,KAT,KAB
Input Power KW 0.12~3 0.12~3 0.12~4 0.18~5.5 0.37~11 0.75~22 1.1~30 3~45 7.5~90 11~160 15~200 15~200
Transmission Ratio   i 4.09~106.6 4.66~131.7 4.68~143.5 7.1~646.2 7.11~192.7 7.42~195.2 8.88~176.5 8.72~147.2 8.6~144.4 12.7~151.1 17.3~161 17.1~180.7
Allowed Torque  Nm 170 340 510  705 1320 2300 3670 6800 11050 15300 27200 42500
Weight   kgs 12 22 30 37 63 94 145 275 420 680    

Application areas: The reducer is a mechanical transmission device in many fields of the national economy. The product
categories involved in the industry include various types of gear reducers, planetary gear reducers
and worm reducers, as well as various special transmission devices, such as speed increase devices
and speed control. Devices, and various types of composite transmissions including flexible transmissio
ns. The product service field covers metallurgy, nonferrous metals, coal, building materials, ships,
water conservancy, electric power, engineering machinery and petrochemical industries.
China's helical bevel gear reducer industry has a history of nearly 40 years. In all areas of the national economy and
the defense industry, reducer products have a wide range of applications. Food light industry, electric
machinery, construction machinery, metallurgical machinery, cement machinery, environmental
protection machinery, electronic appliances, road construction machinery, water conservancy
machinery, chemical machinery, mining machinery, transportation machinery, building materials
machinery, rubber machinery, petroleum machinery and other industries Reducer products have
strong demand.

The market with great potential has spawned fierce competition in the industry. In the brutal market
competition, enterprises in the helical bevel gear reducer industry must speed up the elimination of backward production
capacity, vigorously develop high-efficiency energy-saving products, make full use of the national
energy-saving products, benefit the project policy opportunities, and increase product renewal efforts.
Adjust the product structure and pay attention to the national industrial policy to cope with the complex
and volatile economic environment and maintain a good momentum of development.
Oil level check:
1. Turn off the power to prevent electric shock. Waiting for the reducer to cool down;
2. Remove the oil level screw plug to check whether the oil is full;
3. Install the oil level screw plug.
Oil inspection: 1. Turn off the power to prevent electric shock. Waiting for the reducer to cool down; 2. Open the oil drain plug and take the oil sample; 3. Check the viscosity index of the oil: If the oil is obviously turbid, it is recommended to replace it as
soon as possible; 4. For reducer with oil level screw plug: Check the oil level, if it is qualified; install the oil level screw
plug.

 

 

Date

06 September 2019

Tags

Bevel gear

 sogears manufacturing

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