The soft tooth surface reducer is developed on the basis of the medium hard tooth surface reducer for QJ series cranes.
The QY series reducer includes two series of hard-tooth surface reducers for cranes, QYS type (three fulcrum) and QYD type (base type).
It has three types: three-stage, four-stage and three-four-stage combination. The QY reducer is welded with steel plates,
the box is annealed to relieve stress, the gears are made of high-quality low-carbon alloy steel, and the tooth surfaces are carburized and quenched.
Grinding, stable product quality and reliable performance. 1) High carrying capacity. The gears are processed by carburizing, quenching and grinding,
and the bearing capacity is greatly improved compared with the soft tooth surface and medium hard tooth surface gear reducers of quenched and tempered
hobbing. 2) Small size and light weight. Compared with the soft tooth surface and medium hard tooth surface reducer. The same bearing capacity reducer
can reduce 2-4 equivalent frame sizes. 3) High efficiency, low noise and small vibration. The gear grinding process has improved the accuracy level,
and the gears have been trimmed. The comprehensive efficiency of each gear stage is 0.98, and the vibration and noise are significantly reduced.
4) Multi-stage is adopted to reduce the single-stage speed ratio. The center distance can be opened to reduce the height of the reducer to meet
the requirements of various crane mechanisms; the maximum nominal transmission ratio of the reducer reaches 400, which meets the requirements of
slow-speed cranes.
5) The three-point reducer can be installed vertically, horizontally, or even deflected to a certain angle, which is convenient
and flexible.
6) This series of reducers has a combination of three and four stages (ie, three-stage assembly type, four-stage transmission ratio),
which provides the premise for the generalization of slow-speed cranes. According to the hardness of the gear surface of the gear reducer,
we divide the gear reducer into a hard tooth surface reducer and a soft tooth surface reducer. There is almost no difference between the two in terms
of appearance and structure, mainly in the gear and worm. There are differences in the post-processing of the forging material machines, resulting in
different loads, lifespans and application ranges of the two products. Generally speaking, the gears of high-power gear reducers are forged
from materials with high hardness, such as 45 steel. After the carburizing and quenching process, the hardness can reach 350HBS or more,
and the gear reducers that reach this hardness are called It is a hardened gear reducer. Hardened gear reducer not only has high hardness of
single gear, but also the hardness of output shaft and input shaft is much higher than that of ordinary gear reducer. Because of its high power,
the material of its box body is also made of cast iron, which can cope well with it. Vibration and shock forces at high loads. Longer service life,
suitable for high-load instruments. Due to the strengthening of materials and industries, the price of hardened gear reducers is relatively higher.
Soft tooth surface series products are ordinary products whose gears have not undergone hardness processing or whose precision does not meet
the requirements of hard tooth surfaces. The soft tooth surface reducer has a very wide range of applications, and is widely used in various
packaging machines, conveyors and other low-power equipment. Its simple process and relatively low price also meet customer requirements,
and it is the most used product on the market. When purchasing a gear reducer, you must first understand whether the product you choose
can meet the requirements. If the soft tooth surface reducer is competent, there is no need to waste money to buy a hard tooth surface reducer.
Its functions are the same, just a When used under high power and high load, ordinary transmission soft tooth surface products are sufficient.
ZQ500-8.23-1 Reducer ZQ reducer is mainly used in lifting, mining, general chemical, textile, light industry and other industries,
the speed is not more than 10 meters per second. Application of ZQ reducer: ZQ reducer is mainly used in lifting, mining, general chemical industry,
textile, light industry and other industries. The speed of the high-speed shaft is not more than 1500 rpm; 3. The reducer is used for forward
and reverse operation; 4. The working environment temperature of the reducer is -40℃ to 40℃ 4. The reducer has nine transmission ratios and nine
configuration types And three low-speed shaft end types; 5. The transmission ratio of this type of reducer is: 48.57, 40.17, 31.5, 23.34, 20.49, 15.75,
12.64, 10.35, 8.23. The ZQ reducer has two stages of transmission, and there are nine types of assembly. ) coupling (type F). ZQ reducer difference:
ZQ type is an involute cylindrical gear reducer, ZQ (H) type is a cylindrical gear reducer, which is formed on the basis of the ZQ type involute
cylindrical gear reducer series. Time has proved that compared with the involute gear of the same specification, the arc gear not only has
a long service life, but also has a large capacity, high strength and less wear on the tooth surface. These two reducers are mainly used for hoisting
machinery, and can also be used in general equipment such as mining machinery, chemical industry, and light industry. The adaptation conditions are:
the speed of the high-speed shaft is not greater than 1500r min, and the working ambient temperature is -40 to 45 degrees. It is suitable
for forward and reverse two-way operation. The ZQD cylindrical gear reducer is based on the ZQ reducer. It becomes a three-stage reducer,
which expands the transmission ratio of the reducer. ZQD type reducer is to add a high-speed stage called three-stage transmission under
the premise of not changing the position and installation size of the input and output shafts of the ZQ-type reducer as much as possible,
and the added high-speed stage is at the top. ZQD1000 250 reducer large transmission ratio reducer ZQD type large transmission ratio cylindrical gear
reducer has six specifications: ZQD350 100, ZQD400 100, ZQD650 150, ZQD850 250 and ZQD1000 250. Center distance The nominal center distance of the
ZQD reducer is the sum of the center distances of the middle and low speed stages. See Tables below ZQD350 ZQD400 ZQD500 ZQD650 ZQD850 ZQD1000
High -speed A1 100 150 150 150 250 250 Middle Speed ??A2 150 200 250 350 400 low -speed 400 400 500 600 Total Center distance 450 500 650 800 1100 1250
ZQD reducer ZQD reducer performance characteristics: (1) The gears are made of high-quality alloy steel through carburizing and quenching,
and the tooth surface hardness is 54-62HRC. (2) The main parameters such as center distance and nominal transmission ratio are optimized and designed,
and the main parts and components are interchangeable. (3) Generally, oil pool lubrication and natural cooling are used.
When the thermal power cannot be satisfied, circulating oil lubrication or fan cooling coil can be used for cooling.
(4) Small size, light weight, high precision, large bearing capacity, high efficiency, long life, high reliability, stable transmission,
low noise For transmission equipment, the ordinary reducer of the motor will also have several pairs of gears with the same principle to achieve
the ideal deceleration effect. The ratio of the number of teeth of the large and small gears is the transmission ratio. With the continuous
development of the reducer industry, more and more enterprises have used the reducer. Gear reducer 1. R series coaxial helical
gear reducer is manufactured in combination with technical requirements, with high technological content 2. Space saving, reliable and durable,
high overload capacity, power up to 132KW 3. Low energy consumption and superior performance , The efficiency of the reducer is as high as 95%; 4.
Small vibration, low noise, high energy saving; 5. High-quality forged steel material, rigid cast iron box, and high-frequency
heat treatment on the surface of the gear; 6. After precision machining, ensure that the axes are parallel To meet the requirements of the degree and
positioning bearing, the reducer forming the helical gear transmission assembly is equipped with various types of motors, which are combined into
mechatronics, which fully guarantees the quality characteristics of the product. Scope of application of ZSCA reducer Reducer: 1. The high-speed
shaft rotation is not more than 1500 rpm. 2. The peripheral speed of gear transmission is not more than 20 m/s. 3. The working environment
temperature is -40-45℃. If it is lower than 0℃, the lubricating oil should be preheated to above 0℃ before starting. 4. The gear reducer can be
used to run in both forward and reverse directions. Features of ZSCA reducer 1. The gears are made of high-strength low-carbon alloy steel through
carburizing and quenching, and the hardness of the tooth surface reaches HRC58-62. 2. High transmission rate: more than 96.5% for single stage, more
than 93% for double stage, and more than 90% for three stage. 3. Smooth operation and low noise. 4. Small size, light weight, long use and high
bearing capacity. 5. Easy to dismantle, easy to install. This series includes: ZDH10, ZDH15, ZDH20, ZDH25, ZDH30, ZDH35, ZDH40, ZDH45, ZDH50, ZDH60,
ZDH70, ZDH80, ZDH60 cast steel, ZDH70 cast steel, ZDH80 herringbone teeth This standard includes three series of external meshing cylindrical gear
reducers, ZD (involute), ZDH (single arc) and ZDSH (double arc), which are separately installed. They are mainly used in metallurgy, mining, cement,
construction, chemical, textile, light industry and other industries. The conditions are as follows: The peripheral speed of the gear drive of the
reducer is not more than 18m sec. The speed of the high-speed shaft of the reducer is not more than 1500 rpm. The ambient temperature of the reducer
is -40C to 45C. The reducer is used for forward and reverse operation. The two marking methods are in The code of the reducer includes the model of
the reducer, the total center distance, the transmission ratio, the assembly type and the gear accuracy grade.
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