Worm gear reducer is a kind of power transmission mechanism, which uses the speed converter of gear to reduce the rotation number of motor (motor) to the required rotation number and obtain a larger torque. Among the mechanisms used to transmit power and motion, the reducer is widely used. It can be seen in the transmission systems of all kinds of machinery, from ships, automobiles, locomotives, heavy machinery used in construction, processing machinery and automatic production equipment used in the machinery industry, to common household appliances, clocks and watches in daily life. Its application can be seen from the transmission of large power to small load and accurate angle transmission. In industrial applications, the reducer has the function of reducing speed and increasing torque. Therefore, the basic structure of V series aluminum alloy worm gear reducer widely used in speed and torque conversion equipment is mainly composed of transmission parts such as worm gear, shaft, bearing, box and its accessories.
It can be divided into three basic structural parts: box, worm gear, bearing and shaft combination. The box is the base of all the accessories in the worm gear reducer, and is an important accessory to support and fix the shafting components, ensure the correct relative position of the transmission accessories, and support the load acting on the reducer. Worm gear and worm are mainly used to transmit the motion and power between the two staggered shafts, while bearings and shafts are mainly used to transmit power, operate and improve efficiency.
Some accessories of worm gear reducer are explained as follows:
Shell: aluminum alloy (base: 025-090) cast iron (base: 110-150);
Worm: 20Cr steel. Carbonitriding treatment (after fine grinding, keep the hardness of tooth surface HRC60, and the hardness thickness is greater than 0.5mm);
Worm gear: wear-resistant nickel bronze with special configuration;
The oil cap/breather is mainly used to discharge the gas in the worm gear reducer case;
The end cover is divided into large end cover and small end cover. The end cover is used to fix the axial position of the shafting components and bear the axial load. Both ends of the bearing seat hole are closed by the bearing cover;
The oil seal is mainly used to prevent the lubricating oil inside the case from leaking out and improve the service time of the lubricating oil;
The oil drain plug is mainly used to drain the dirty oil and clean the oil when changing the lubricating oil;
The oil pointer cover/oil pointer is mainly used to observe whether the oil volume inside the worm gear reducer case is up to the standard
RV series worm gear reducer is designed and manufactured according to technical quality standards. RV series worm gear reducer, on the basis of meeting the national standard GB10085-88 cylindrical worm gear parameters, absorbs the advanced technology at home and abroad, and has a unique "square box" shape structure. The box shape is beautiful, and it is made of high-quality aluminum alloy die-casting. RV series worm gear reducer has been widely used in mechanical reducer of production process equipment in various industries. It is the best choice for modern industrial equipment to achieve high torque, large speed ratio, low noise, and high stability mechanical reducer control device.
characteristic
1. Compact mechanical structure, light volume and shape, small size and high efficiency;
2. Good heat exchange performance and fast heat dissipation;
3. Simple installation, flexibility, superior performance and easy maintenance;
4. Stable operation, low noise, durable;
5. Strong usability, high safety and reliability;
The reducer plays the role of matching speed and transmitting torque between the prime mover and the working machine or actuator, and is widely used in modern machinery. The reducers can be divided into general purpose reducers and special purpose reducers according to their use, and their design, manufacture and use characteristics are different.
Principle of reducer
The reducer is an independent closed transmission device between the prime mover and the working engine, which 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, which is called the speed increaser.
When selecting the reducer, the most suitable reducer shall be selected by comparing the overall dimensions, transmission efficiency, price, etc. of different types and varieties of reducers according to the selection conditions, technical parameters, performance, economy and other factors of the working machine. The reducer is a relatively precise machine, which is used to reduce speed and increase torque. Simply speaking, it is to use all levels of gear transmission to achieve the purpose of speed reduction. The reducer is composed of gear pairs at all levels. For example, the small gear can drive the big gear to achieve a certain purpose of speed reduction, and the multi-stage structure can greatly reduce the speed.
The reducer is generally used for the transmission equipment with low speed and large torque, and the motor. The power of internal combustion engine or other high-speed operation is reduced by meshing the gear with fewer teeth on the input shaft of the reducer with the big gear on the output shaft. Ordinary reducers also have several pairs of gears with the same principle to achieve the ideal reduction effect. The ratio of the number of teeth of big and small gears is the transmission ratio.
The reducer is generally used for the transmission equipment with low speed and large torque, and the motor. The power of internal combustion engine or other high-speed operation is reduced by meshing the gear with fewer teeth on the input shaft of the reducer with the big gear on the output shaft. Ordinary reducers also have several pairs of gears with the same principle to achieve the ideal reduction effect. The ratio of the number of teeth of big and small gears is the transmission ratio.
The reducer is a power transmission mechanism, which uses the speed converter of the gear to reduce the rotation number of the motor to the desired rotation number and obtain a larger torque.
Function of reducer
1. Reduce the speed and increase the output torque at the same time. The torque output ratio shall be based on the motor output multiplying/decelerating ratio, but it shall not exceed the rated torque of the reducer.
2. At the same time, deceleration reduces the inertia of the load, which is the square of the deceleration ratio. You can see that general motors have an inertia value. The general types of reducers include helical gear reducers (including parallel shaft helical gear reducers, worm gear reducers, bevel gear reducers, etc.), planetary gear reducers, cycloidal pin gear reducers, worm gear reducers, planetary friction mechanical stepless transmissions, etc.
Cycloidal pin gear reducer is a novel transmission device based on K-H-V planetary transmission principle with small tooth difference. The transmission process is as follows: a double eccentric sleeve with a displacement of 180 degrees is installed on the input shaft, and two roller bearings called the rotary arm are installed on the eccentric sleeve to form the H mechanism. The central holes of the two cycloidal gears are the raceways of the upper arm bearing of the eccentric sleeve, and the cycloidal gear and the needle gear mesh to form an internal mesh reducer with a difference of one tooth.
This product is widely used in metallurgy, mining, hoisting, transportation, cement, construction, chemical industry, printing and dyeing, pharmacy, food environmental protection and other industries. It is applicable to the working environment temperature of - 40 ℃ - 40 ℃. Under the rated load and speed, the oil pool temperature rise of the reducer shall not exceed 60 ℃, and the maximum oil temperature shall not exceed 80 ℃.
1、 Applicable conditions:
The maximum speed of high-speed shaft shall not exceed 1500r/min, and the peripheral speed of gear shall not exceed 15m/s
Working environment temperature: - 40 ℃ -+45 ℃
It can be used for positive and negative operation.
2、 Main features:
(1) Compact structure: light deadweight, small volume and convenient installation
(2) High transmission efficiency: according to the actual test:
Single stage efficiency: η= 0.97-0.98
Two stage efficiency: η= 0.94-0.96
(3) Large power range: its transmission power can reach 1.37-500kW
(4) . Large transmission ratio: single-stage speed ratio: i=4-10
Double stage speed ratio: i=25-100
(5) Stable operation and low noise: the planetary transmission has the characteristics of torque branching, and compared with the gear transmission with fixed axis, the peripheral speed is also reduced. In order to evenly distribute the load among planetary gears. Reliable floating mechanism is adopted to reduce vibration and noise.
(6) Long service life: the main parts are made of high-quality alloy steel after quenching and tempering, quenching or nitriding treatment. It greatly improves the mechanical properties and wear resistance. Therefore, it has the characteristics of long service life and high reliability under normal and reasonable use conditions.
(7) Leakage resistance: the lubricating oil in the reducer body does not leak.
