Planetary reducer with small size and large torque

Abstract

The utility model relates to the technical field of planetary reducers, in particular to a small-size large-torque planetary reducer which comprises a front planetary shaft, a first end cover is installed on one side of the front planetary shaft, planetary gear transmission is adopted, power dividing can be carried out, an input shaft and an output shaft are coaxial, and the structure is compact. The transmission efficiency is high, the weight and the size are only 1 / 2-1 / 6 of those of a common gear speed reducer, an internal gear is subjected to 20CrMnTi carburizing and quenching and gear grinding, the size is small, the weight is light, the bearing capacity is high, the service life is long, operation is stable, noise is low, the output torque is large, the speed ratio is large, efficiency is high, performance is safe, and the characteristics of power dividing and multi-tooth meshing are achieved; the small-size and large-torque planetary reducer is suitable for various types such as planetary series fixed shaft transmission reducers in numerous industrial departments such as hoisting transportation, engineering machinery, metallurgy and mines, is specially designed for valve testing, is small in size, light in weight and large in torque, facilitates valve testing, and can improve the testing efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of planetary reducers, in particular to a planetary reducer with small volume and large torque. Background Art

[0002] Planetary reducer is a kind of reduction device widely used in the industrial field. It is mainly composed of components such as sun gear, planetary gear, inner ring gear and planetary carrier. Its working principle is that power is input from the sun gear, and the planetary gear rotates and revolves between the sun gear and the inner ring gear, and outputs through the planetary carrier to achieve the reduction function. Planetary reducer has the advantages of small size, light weight, high transmission efficiency and wide reduction range. It can adapt to various working conditions and plays an important role in automated production lines, robots, CNC machine tools and other equipment. It can accurately control the speed and torque, and effectively improve the performance and stability of the equipment.

[0003] However, the 1 / 2~1 / 6 of ordinary gear reducers have complex structures and require high manufacturing precision. However, the current domestic star reducers can only have four stages at most, which seriously limits their reduction ratio, resulting in high production costs and manufacturing difficulties for gear reducers. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the existing technology has 1 / 2~1 / 6 of the ordinary gear reducer, the structure is complex, and the manufacturing precision requirements are high. At present, the domestic planetary reducer can only have four stages at most, which seriously limits its reduction ratio. A planetary reducer with small size and high torque is proposed.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a planetary reducer with small volume and large torque, including a front planetary shaft, a first end cover is installed on one side of the front planetary shaft, a first bearing is installed on the side of the first end cover away from the front planetary shaft, a planetary gear A is installed on the side of the first bearing away from the first end cover, a first planetary carrier is provided on one side of the planetary gear A, a planetary gear E is installed on the surface of the first planetary carrier, the planetary gear E is meshed with the planetary gear A, the first planetary carrier is fixedly connected to the first end cover, a sealing ring is provided on the surface of the first bearing, a second planetary carrier is installed on the side of the first planetary carrier away from the planetary gear A, a fourth planetary carrier is installed on one side of the first planetary carrier, a planetary gear B is installed on the surface of the fourth planetary carrier, and the second planetary carrier is installed with the fourth planetary carrier.

[0006] Preferably, a planetary gear C is mounted on one side of the second planetary carrier, a first inner ring gear is meshedly connected to one side of the planetary gear C, and an outer end cover is mounted on the surface of the first inner ring gear.

[0007] Preferably, a second end cover is installed on the surface of the outer end cover, and an inner tooth is installed on the side of the outer end cover away from the planetary gear C.

[0008] Preferably, a third planet carrier is mounted on one side of the second end cover, and a planet gear D is mounted on the inner wall of the third planet carrier.

[0009] Preferably, the planet gear D is meshed with the internal teeth, and a second inner ring gear is installed on one side of the third planet carrier.

[0010] Preferably, a spacer is fixedly connected to one side of the second inner ring tooth, and a rear end cover is installed on the surface of the spacer.

[0011] Preferably, a rear planetary shaft is mounted on one end of the rear end cover, and the planetary gear D is meshed with the second inner ring gear.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] In the present invention, by setting up the present invention, planetary gear transmission has been widely used in mechanical equipment. Compared with ordinary gear transmission, it has many unique advantages. It can perform power diversion when transmitting power. Due to the coaxiality of the input and output shafts, its structure is compact and the transmission efficiency is high. It has been proved in practice that the weight and volume of planetary transmission are only 1 / 2~1 / 6 of ordinary gear reducers. The structure is more complicated and the manufacturing precision is high. However, the current domestic star reducer can only be made into four stages at most, which seriously limits its reduction ratio. In order to make its reducer volume small but with large torque, the star-shaped characteristics of the star-shaped reducer are used to design this reducer with small volume and large torque. The internal gears of the planetary reducer are made of 20CrMnTi carburized quenched and ground, which has small volume, light weight and high load-bearing capacity. It has the characteristics of high force, long service life, smooth operation, low noise, large output torque, large speed ratio, high efficiency and safe performance. It has the characteristics of power shunting and unique multi-tooth meshing. It is suitable for industrial sectors such as lifting and transportation, engineering machinery, metallurgy, mining, petrochemical industry, construction machinery, light industry and textile, medical equipment, instrumentation, automobiles, ships, weapons and aerospace. Planetary series fixed-axis transmission reducers, parent and child gear transmission reducers, elastic load-sharing and small tooth difference reducers, small volume and high torque planetary reducers are designed for valve testing. During testing, due to its small volume and light weight, but large torque provided, it is more convenient to use it for valve testing and improve its testing efficiency. By setting up the utility model and adopting planetary gear transmission, power shunting can be carried out, the input and output shafts are coaxial, and the structure is compact. It features high transmission efficiency, and its weight and volume are only 1 / 2 - 1 / 6 of those of ordinary gear reducers. Its internal gears are made of 20CrMnTi, which is carburized, quenched, and ground. It boasts a compact size, light weight, high load capacity, long service life, smooth operation, low noise, high output torque, large speed ratio, high efficiency, and safe performance. With power splitting and multi-tooth meshing characteristics, it is suitable for various types of planetary series fixed-axis transmission reducers in numerous industrial sectors, including lifting and transportation, engineering machinery, metallurgy, and mining. The small-volume, high-torque planetary reducer is specially designed for valve testing. Its compact size, light weight, and high torque facilitate valve testing and improve test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a cross-sectional structural diagram of a planetary reducer with small volume and high torque;

[0015] Figure 2 This is a schematic diagram of the internal structure of a planetary reducer with a small volume and high torque proposed by the utility model;

[0016] Figure 3 The utility model provides a partial structural diagram of a planetary reducer with small volume and high torque.

[0017] Legend: 1. Front planetary shaft; 2. First end cover; 3. First bearing; 4. Seal ring; 5. Planet gear A; 6. First planet carrier; 7. Planet gear B; 8. Second planet carrier; 9. Planet gear C; 10. First inner ring gear; 11. Outer end cover; 12. Second end cover; 13. Inner gear; 14. Planet gear D; 15. Third planet carrier; 16. Second inner ring gear; 17. Spacer; 18. Rear end cover; 19. Rear planetary shaft; 20. Planet gear E; 21. Fourth planet carrier. DETAILED DESCRIPTION

[0018] See also Figure 1-3 The utility model provides a technical solution: a planetary reducer with small volume and large torque, including a front planetary shaft 1.

[0019] In this embodiment: a first end cover 2 is installed on one side of the front planetary shaft 1, a first bearing 3 is installed on the side of the first end cover 2 away from the front planetary shaft 1, a planetary gear A5 is installed on the side of the first bearing 3 away from the first end cover 2, a first planetary carrier 6 is provided on one side of the planetary gear A5, a planetary gear E20 is installed on the surface of the first planetary carrier 6, the planetary gear E20 is meshed with the planetary gear A5, the first planetary carrier 6 is fixedly connected to the first end cover 2, a sealing ring 4 is provided on the surface of the first bearing 3, a second planetary carrier 8 is installed on the side of the first planetary carrier 6 away from the planetary gear A5, a fourth planetary carrier 21 is installed on one side of the first planetary carrier 6, a planetary gear B7 is installed on the surface of the fourth planetary carrier 21, and the second planetary carrier 8 is installed with the fourth planetary carrier 21.

[0020] Specifically, a planetary gear C9 is installed on one side of the second planetary carrier 8 , and a first inner ring gear 10 is meshedly connected to one side of the planetary gear C9 . An outer end cover 11 is installed on the surface of the first inner ring gear 10 .

[0021] Specifically, a second end cover 12 is installed on the surface of the outer end cover 11 , and an inner tooth 13 is installed on a side of the outer end cover 11 away from the planetary gear C9 .

[0022] Specifically, a third planet carrier 15 is mounted on one side of the second end cover 12 , and a planet gear D14 is mounted on an inner wall of the third planet carrier 15 .

[0023] Specifically, the planet gear D14 is meshed with the inner teeth 13 , and a second inner ring gear 16 is mounted on one side of the third planet carrier 15 .

[0024] Specifically, a spacer ring 17 is fixedly connected to one side of the second inner ring gear 16 , and a rear end cover 18 is mounted on the surface of the spacer ring 17 .

[0025] Specifically, a rear planetary shaft 19 is mounted on one end of the rear end cover 18 , and the planetary gear D14 is meshed with the second inner ring gear 16 .

[0026] Working principle: Through the setting of the utility model, planetary gear transmission has been widely used in mechanical equipment. Compared with ordinary gear transmission, it has many unique advantages. It can perform power diversion when transmitting power. Due to the coaxiality of the input and output shafts, its structure is compact and the transmission efficiency is high. It has been proved in practice that the weight and volume of planetary transmission are only 1 / 2~1 / 6 of ordinary gear reducers. The structure is more complex and the manufacturing precision is high. However, the current domestic star reducer can only be made into four stages at most, which seriously limits its reduction ratio. In order to make its reducer have a small size but large torque, the star-shaped characteristics of the star-shaped reducer are used to design this reducer with small size and large torque. The internal gears of the planetary reducer are made of 20CrMnTi carburized quenched and ground, which has small size, light weight and high load-bearing capacity. High, long service life, smooth operation, low noise, large output torque, large speed ratio, high efficiency, safe performance, and the characteristics of power shunting and multi-tooth engagement are combined. It is suitable for industrial sectors such as lifting and transportation, engineering machinery, metallurgy, mining, petrochemical industry, construction machinery, light industry and textiles, medical equipment, instruments and meters, automobiles, ships, weapons and aerospace. Planetary series fixed-axis transmission reducers, parent and child gear transmission reducers, elastic load-sharing and small-tooth difference reducers, small-volume and high-torque planetary reducers are designed for valve testing. During testing, due to its small size and light weight, but large torque provided, it is more convenient to use it for valve testing and improves its testing efficiency. By setting up the utility model and adopting planetary gear transmission, power shunting can be carried out, the input and output shafts are coaxial, and the structure is compact. It features high transmission efficiency, and its weight and volume are only 1 / 2 - 1 / 6 of those of ordinary gear reducers. Its internal gears are made of 20CrMnTi, which is carburized, quenched, and ground. It boasts a compact size, light weight, high load capacity, long service life, smooth operation, low noise, high output torque, large speed ratio, high efficiency, and safe performance. With power splitting and multi-tooth meshing characteristics, it is suitable for various types of planetary series fixed-axis transmission reducers in numerous industrial sectors, including lifting and transportation, engineering machinery, metallurgy, and mining. The small-volume, high-torque planetary reducer is specially designed for valve testing. Its compact size, light weight, and high torque facilitate valve testing and improve test efficiency.

Claims

1. A planetary reducer with small volume and high torque, comprising a front planetary shaft (1), characterized in that: A first end cover (2) is installed on one side of the front planetary shaft (1), a first bearing (3) is installed on the side of the first end cover (2) away from the front planetary shaft (1), a planetary gear A (5) is installed on the side of the first bearing (3) away from the first end cover (2), a first planetary carrier (6) is provided on one side of the planetary gear A (5), a planetary gear E (20) is installed on the surface of the first planetary carrier (6), the planetary gear E (20) is meshed with the planetary gear A (5), the first planetary carrier (6) is fixedly connected to the first end cover (2), a sealing ring (4) is sleeved on the surface of the first bearing (3), a second planetary carrier (8) is installed on the side of the first planetary carrier (6) away from the planetary gear A (5), a fourth planetary carrier (21) is installed on one side of the first planetary carrier (6), a planetary gear B (7) is installed on the surface of the fourth planetary carrier (21), and the second planetary carrier (8) is installed with the fourth planetary carrier (21).

2. A planetary reducer with small volume and high torque according to claim 1, characterized in that: A planetary gear C (9) is mounted on one side of the second planetary carrier (8), a first inner ring gear (10) is meshedly connected to one side of the planetary gear C (9), and an outer end cover (11) is mounted on the surface of the first inner ring gear (10).

3. The planetary reducer with small volume and high torque according to claim 2, characterized in that: A second end cover (12) is mounted on the surface of the outer end cover (11), and an inner tooth (13) is mounted on a side of the outer end cover (11) away from the planetary gear C (9).

4. The planetary reducer with small volume and high torque according to claim 3, characterized in that: A third planet carrier (15) is mounted on one side of the second end cover (12), and a planet gear D (14) is mounted on the inner wall of the third planet carrier (15).

5. The planetary reducer with small volume and high torque according to claim 4, characterized in that: The planetary gear D (14) is meshedly connected with the inner teeth (13), and a second inner ring tooth (16) is installed on one side of the third planetary carrier (15).

6. The planetary reducer with small volume and high torque according to claim 5, characterized in that: A spacer ring (17) is fixedly connected to one side of the second inner ring tooth (16), and a rear end cover (18) is mounted on the surface of the spacer ring (17).

7. The planetary reducer with small volume and high torque according to claim 6, characterized in that: A rear planetary shaft (19) is mounted on one end of the rear end cover (18), and the planetary gear D (14) is meshedly connected with the second inner ring gear (16).

Images