S-usoro gia reducer sample - helical worm gear reducer drawer
The "desertification" policy issued by the United Nations aims to prevent the expansion of desert areas. Transport planes are required to change and realize all these. Their operation is to let transport planes transport steel for railway construction and green barriers. Power transmission design is a sports discipline that requires practitioners to consider the challenges of tomorrow and design the latest innovation today.
Design is natural. With the development of technology and industry, style continues to develop and progress, and standard solutions change and modernize. However, any excellent engineer will tell you that it is important to learn from the past; Sometimes an old principle can be the latest answer of an industry. The roller table often constitutes the backbone factory of steel processing, through which a large number of metal plates and production stages are transported. This work is a very difficult work. The working temperature varies greatly, and there are more abrasive particles in the immediate environment. During transportation, the steel itself will emit a lot of heat and physical weight when it passes by. Each roller means that they need to be able to withstand high regular impact loads. Until 1976, the most common solution was that the driving roller was a solid coupling with an embedded worm gear reducer installed on a base to connect the output shaft with the roller.
The support of the very sturdy design and mounting base allows the specified reducer and motor to withstand any reaction when the roll is under metal load. Although the design is for the purpose of suitability, there are undeniable inherent defects. Worm gear reducer is easy to wear and cannot achieve transportation effect. Plant engineers need a new solution that still provides the output required for robustness and torque applications. The scheme was handed over to the engineers of VEMTE Technology Center. Based on the worm gear reducer, the engineers added the module design of helical gear, and the gear materials were all superior. The surface was carburized, hardened and shot blasted. After repeated experiments, the average speed ranges from about 2 m/s to 8 m/s. And the conveyor is very sensitive, without any pause.
Precision planetary gear reducer
The main transmission structure is: planetary gear, sun gear and outer gear ring.
Due to the structure of the planetary reducer, the minimum single-stage reduction is 3, and the maximum is generally not more than 10. The common reduction ratio is 3.4.5.6.8.10. The number of stages of the reducer is generally not more than 3. However, some customized reducers with large reduction ratios have 4-stage reduction. Compared with other reducers, planetary reducers are characterized by high rigidity, high accuracy (within 1 point for a single stage), high transmission efficiency (97% - 98% for a single stage), high torque/volume ratio, life-long maintenance free, etc. Because of these characteristics, most planetary reducers are installed on stepping motors and servo motors to reduce speed, increase torque and match inertia.
S-usoro gia reducer sample - helical worm gear reducer drawer
The maximum rated input speed of the planetary reducer can reach 18000rpm (depending on the size of the reducer itself, the larger the reducer, the smaller the rated input speed). The output torque of the industrial planetary reducer generally does not exceed 2000Nm, and the specially made super torque planetary reducer can achieve 10000Nm or more. The working temperature is generally about - 25 ℃ to 100 ℃. The working temperature can be changed by changing the lubricating grease.
Because the precision planetary reducer is equipped with a servo motor, the backlash grade (arc minutes) is very important. The price difference of different backlash grades is quite large. The planetary reducer can be used as a multi gearbox connection with a maximum reduction ratio of 100000.
Ọnọdụ dị mma:
The peripheral speed of reducer gear transmission shall not exceed 10m/s.
Ọsọ ntinye ntinye adịghị elu karịa 1500 rpm.
The working environment temperature of the reducer is - 40 ℃ -+45 ℃.
The reducer can be used for forward and reverse operation.
Planetary gear reducer:
Due to the structure of planetary reducer, the minimum single-stage reduction is 3, and the maximum is generally not more than 10. The common reduction ratio is 3.4.5.6.8.10. The number of stages of reducer is generally not more than 3. However, some customized reducers with large reduction ratio have 4-stage reduction
Compared with other reducers, planetary reducers are characterized by high rigidity, high accuracy (within 1 point for a single stage), high transmission efficiency (97% - 98% for a single stage), high torque/volume ratio, and life-long maintenance free.
Because of these characteristics, most planetary reducers are installed on stepping motors and servo motors to reduce speed, increase torque and match inertia
The maximum rated input speed of the reducer can reach 18000rpm (depending on the size of the reducer itself, the larger the reducer, the lower the rated input speed). The output torque of the industrial planetary reducer generally does not exceed 2000Nm, and the specially made super torque planetary reducer can reach 10000Nm. The operating temperature is generally about - 25 ℃ to 100 ℃, and its operating temperature can be changed by changing the lubricating grease.
Ọtụtụ echiche:
Series: number of sets of planetary gears As a set of star gears cannot meet the requirements of large transmission ratio, sometimes two or three sets are required to meet the requirements of supporting large transmission ratio As the number of star gears is increased, the length of two-stage or three-stage reducer will increase and the efficiency will decrease
Return clearance: when the output end is fixed and the input end rotates clockwise and counterclockwise to make the input end generate+- 2% of the rated torque, there is a small angular displacement at the input end of the reducer. This angular displacement is the return clearance. The unit is "minute", which is one sixtieth of one degree. It is also called back clearance
Planetary cycloidal pinwheel reducer:
All transmission devices can be divided into three parts: input part, deceleration part and output part. A double eccentric sleeve with a displacement of 180 ° is installed on the input shaft, and two roller bearings called the rotary arm are installed on the eccentric sleeve to form the raceway of the rotary arm bearing on the eccentric sleeve through the central holes of the H mechanism and two cycloidal gears. The cycloidal gear is meshed with a group of ring-shaped needle teeth on the needle gear to form an internal meshing reducer with a tooth difference of one tooth, (In order to reduce friction, in the reducer with small speed ratio, there is a needle tooth sleeve on the needle tooth).
S-usoro gia reducer sample - helical worm gear reducer drawer
When the input shaft rotates with the eccentric sleeve for one circle, due to the characteristics of the tooth profile curve on the cycloid gear and its limitation by the needle teeth on the needle gear, the motion of the cycloid gear becomes a plane motion with both revolution and rotation. When the input shaft rotates in the positive direction, the eccentric sleeve also rotates for one circle, and the cycloid gear rotates over a tooth in the opposite direction to obtain deceleration. Then, with the help of the W output mechanism, the low speed rotation motion of the cycloid gear is transmitted to the output shaft through the pin shaft, This results in a lower output speed.
Atụmatụ ịrụ ọrụ:
◆ P series planetary gear reducer adopts involute planetary gear transmission, and makes rational use of internal and external meshing and power distribution. Therefore, it has the characteristics of light weight, small volume, large transmission ratio range, high efficiency, smooth operation, low noise, and strong adaptability.
◆ P series planetary gear reducer box is made of ductile iron, which greatly improves the rigidity and seismic resistance of the box.
◆ Input mode: concentric shaft input, helical gear input, bevel gear helical gear input, bevel gear input.
◆ Output mode: internal spline type, hollow shaft shrink disk type, external spline type, solid shaft flat key.
◆ Installation form: horizontal installation, vertical installation, torque arm installation.
◆ P series products have 9-34 specifications, and planetary drive stages have 2 and 3 levels. The speed ratio is 25-4000.
◆ Modular design is adopted, which can be changed and combined according to customer requirements.
◆ Large speed ratio can be obtained by combining with R and K series.
Technical parameters: speed ratio range: basic type 25~4000
Torque range: 2.6 ～ 900 kNm
Oke ike: 22 ~ 1920 kW
S-usoro gia reducer sample - helical worm gear reducer drawer
Scope of application of WS type cylindrical worm reducer
Akporo nke ngwa
Scope of application of WS type cylindrical worm reducer This standard is an Archimedes cylindrical worm reducer with primary transmission; WS (Worm up) WD (Worm down). (The worm Archimedes cylindrical worm reducer is applicable to the situations where the sliding speed at the worm engagement is not more than 7.5m/s; the worm speed is not more than 1500r/min; the working environment temperature is - 40 ～ ＋ 40 ℃; and it can operate in the forward and reverse directions.
WS type cylindrical worm reducer is a cylindrical worm reducer with primary transmission. It is characterized by large transmission ratio, compact structure, small volume, low noise, stable operation and good self-locking.
The worm of the worm reducer is made of 45 carbon steel and has been quenched and tempered. The worm gear is cast with ZQAL9-4 aluminum bronze, the input shaft support is tapered roller bearing, and the outlet shaft end is equipped with skeleton oil seal to prevent oil leakage and extend the service life.
The worm reducer is mainly applicable to the reduction drive of various mechanical equipment such as metallurgy, mining, hoisting, transportation, chemical industry, construction, textile, light industry, etc., especially for mobile lifting equipment such as stations, docks, warehouses, etc., winch lifting is suitable. It is applicable to the sliding speed at the worm engagement not greater than 7.5m/s
Lubrication of cycloidal pin gear reducer
1. Under normal conditions, the horizontal cycloidal pin gear reducer adopts oil pool lubrication, and the oil level can be kept in the middle of the oil window. When the working conditions are bad and the ambient temperature is high, the circular lubrication can be used.
2. The cycloidal pin gear reducer is generally lubricated with 40 # or 50 # machine oil at normal temperature. In order to improve the performance of the reducer and prolong the service life of the cycloidal pin gear reducer, 70 # or 90 # extreme pressure gear oil is recommended. The lubricating oil should also be re considered when working at high and low temperatures.
3. When the planetary cycloidal pin gear reducer is installed vertically, the oil pump shall be strictly prevented from cutting off oil to avoid damage to the reducer components.
4. To refuel, unscrew the vent cap on the upper part of the engine seat. When draining the oil, unscrew the oil drain plug at the lower part of the engine seat to drain the dirty oil.
5. The oil shall be replaced after the first refueling operation for 100 hours. (The internal dirty oil shall be flushed clean) Then the oil shall be continuously operated. The oil shall be replaced every half a year (8 hour working system). If the working conditions are bad, the oil change time can be appropriately shortened. Practice has proved that regular cleaning and oil change of the reducer (such as 3-6 months) play an important role in extending the service life of the reducer. The lubricating oil shall be replenished frequently during use.
S-usoro gia reducer sample - helical worm gear reducer drawer
6. The newly issued reducer below 4 # unit (including 4 # unit) has been greased and replaced every six months. The grease of WBE65 miniature cycloidal pin gear reducer is aluminum disulfide - 2 # or 2L-2 # lithium base grease. There is no lubricating oil inside the reducer above 5 # when leaving the factory.
7. If it is difficult to remove the eccentric for the first time, you can try to pry the whole eccentric off. If it is not easy to pry, you can slightly heat the eccentric shaft sleeve. Generally, it can be disassembled. During installation, the shaft and shaft sleeve shall be derusted and oiled, and the gear shall match the marks, some of which are overlapped, and some of which are 180 ° or 90 °. You can turn the two gears in your hand until the tooth tip of the upper gear is aligned with the center of the two tooth tips of the lower gear. At this time, see how the marks are. Align the marks according to the installation time. First put down the gear, then install the eccentric bearing, and then put the gear. It may not be easy to install at this time. You can use a rubber band to hold the upper eccentric bearing to prevent the bearing ball from expanding. Put the alignment mark into the upper gear slowly. After installation, turn the shaft of the motor slightly, and it will be OK if you feel flexible and light.
Cycloidal pin gear reducer is a mechanical transmission that transmits power and motion by meshing the teeth of two gears. According to the relative position of gear axis, it is divided into parallel shaft cylindrical gear transmission, intersecting shaft bevel gear transmission and staggered shaft helical gear transmission. It is characterized by compact structure, high efficiency and long service life. High efficiency Among the commonly used mechanical transmissions, the gear transmission efficiency is the highest, and the closed transmission efficiency is 96%~99%, which has great economic significance for high-power transmission. The gear transmission with reliable operation, long service life, correct and reasonable design and manufacture, and good use and maintenance is very reliable, and its service life can be as long as ten or twenty years, which is incomparable to other mechanical transmissions. This is particularly important for vehicles and machines working in mines.
All transmission devices of cycloidal pin gear reducer can be divided into three parts: input part, reduction part and output part. A double eccentric sleeve with a displacement of 180 ° is installed on the input shaft, and two roller bearings called the rotary arm are installed on the eccentric sleeve to form the raceway of the rotary arm bearing on the eccentric sleeve through the central holes of the H mechanism and two cycloidal gears. The cycloidal gear is meshed with a group of ring-shaped needle teeth on the needle gear to form an internal meshing reducer with a tooth difference of one tooth, (In order to reduce friction, in the reducer with small speed ratio, there is a needle tooth sleeve on the needle tooth). When the input shaft rotates with the eccentric sleeve for one circle, due to the characteristics of the tooth profile curve on the cycloid gear and its limitation by the needle teeth on the needle gear, the motion of the cycloid gear becomes a plane motion with both revolution and rotation. When the input shaft rotates in the positive direction, the eccentric sleeve also rotates for one circle, and the cycloid gear rotates over a tooth in the opposite direction to obtain deceleration. Then, with the help of the W output mechanism Pet packing belt, the low speed rotation motion of the cycloid gear passes through the pin shaft, It is transmitted to the output shaft to obtain a lower output speed.
