CN211599416U

CN211599416U - Special planetary reducer for brake detection

Info

Publication number: CN211599416U
Application number: CN201922388941.8U
Authority: CN
Inventors: 厉天龙; 项湖州
Original assignee: Zhejiang Shuntian Transmission Technology Co ltd
Current assignee: Zhejiang Shuntian Transmission Technology Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-29
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a special planetary reducer of braking detection, including casing, power input shaft, end cover and power output shaft, be provided with planet speed reduction drive mechanism in the casing, planet speed reduction drive mechanism is including one-level sun tooth, one-level planet tooth subassembly, jackshaft, second grade sun tooth, second grade planet tooth subassembly, one-level ring gear and second grade ring gear. The utility model has the advantages of it is following and effect: and the two-stage planetary transmission is adopted, and compared with a fixed-axis gear train structure, the planetary gear train has the advantages of small volume, light weight and high efficiency.

Description

Special planetary reducer for brake detection

Technical Field

The utility model relates to a speed reducer field, in particular to special planetary reducer of braking detection.

Background

The speed reducer is a power transmission mechanism that uses the mutual engagement of helical gears to reduce the number of revolutions of a motor to a desired number of revolutions and obtain a large torque. In the current mechanisms for transmitting power and motion, the application range of the speed reducer is quite wide. The trace of the transmission system can be seen in various machines, such as ships, automobiles, locomotives of vehicles, heavy equipment for buildings, processing equipment and automatic production equipment used in the mechanical industry, common household appliances in daily life, clocks and watches, and the like. The application of the speed reducer can be seen from the transmission work of large power to the small load, the application of the speed reducer can be seen when the transmission is seen accurately, and in industrial application, the speed reducer has the functions of reducing speed and increasing torque, so that the speed reducer is widely applied to conversion equipment of reducing speed and torque. When the speed reducer is applied to the aspect of brake detection, a fixed-axis gear train structure is generally adopted, and the speed reducer has the defects of large volume, heavy weight and low efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a special planetary reducer is detected in braking adopts two-stage planetary drive, compares with ordinary gear train structure, has small, light in weight and efficient advantage.

The above technical purpose of the present invention can be achieved by the following technical solutions: a planetary reducer special for brake detection comprises a shell, a power input shaft, an end cover and a power output shaft, wherein one end of the power input shaft is connected with the output of a motor, the other end of the power input shaft extends into the shell, the end cover is fixed on the shell through a bolt and covers the power input shaft, one end of the power output shaft is positioned in the shell and is linked with the power input shaft, and the other end of the power output shaft extends out of the interior of the shell; a planetary reduction transmission mechanism positioned between the power input shaft and the power output shaft is arranged in the shell, and the reduction output of the power output shaft is realized through the planetary reduction transmission mechanism; the method is characterized in that: the planetary reduction transmission mechanism comprises a primary sun gear, a primary planet gear component, an intermediate shaft, a secondary sun gear, a secondary planet gear component, a primary inner gear ring and a secondary inner gear ring; the primary sun gear and the power input shaft are fixed and coaxially arranged; the primary planetary gear assembly comprises at least two primary planetary gears, all the primary planetary gears are arranged along the periphery of the primary sun gear and are in meshing transmission with the primary sun gear, and a primary shaft pin for limiting the position of each primary planetary gear is arranged in the shell; the intermediate shafts are arranged between the secondary sun gear and each primary planet gear respectively, and the synchronous linkage of the secondary sun gear and each primary planet gear is realized through each intermediate shaft; the secondary planetary gear assembly comprises at least two secondary planetary gears, all the secondary planetary gears are distributed along the periphery of the secondary sun gear and form meshing transmission with the secondary sun gear, and a secondary shaft pin for limiting the position of each secondary planetary gear is arranged in the shell; the power output shaft is respectively fixed with each secondary planet gear, so that the speed reduction output is realized under the rotation of each secondary planet gear; the primary inner gear ring and the secondary inner gear ring are both arranged in the shell, the primary inner gear ring corresponds to the positions of the primary planet gears and is meshed with the primary planet gears, and the secondary inner gear ring corresponds to the positions of the secondary planet gears and is meshed with the secondary planet gears.

The further setting is that: the roller bearings are arranged on the periphery of the power output shaft in the shell, and each roller bearing is conical.

The further setting is that: and one side of the secondary sun gear, which faces the power output shaft, is provided with a sealing cover, a gasket is arranged between the sealing cover and the secondary sun gear, and a top block which is abutted against the gasket is fixedly arranged on the secondary sun gear.

The further setting is that: a deep groove ball bearing is arranged on the periphery of the power input shaft in the machine shell.

The further setting is that: and an elastic check ring for a shaft is arranged between the primary sun gear and the secondary sun gear.

The further setting is that: and a framework oil seal used for sealing the roller bearing is arranged on one side of the power output shaft of the shell.

The beneficial effects of the utility model reside in that:

1. the utility model simplifies the structure design by adopting two-stage planetary transmission, and has the advantages of small volume, light weight and high working efficiency compared with a fixed-axis gear train; meanwhile, the reduction ratio is improved and the moment of the rotating shaft is increased through the planetary reduction transmission mechanism, so that the defects of small reduction ratio and low efficiency in the traditional structure are overcome.

2. The utility model discloses in through setting up one-level ring gear and second grade ring gear, effectively prevent the false triggering condition that each one-level planet gear and second grade planet gear lead to under external vibrations, the interference of bumping, through the spacing of one-level ring gear and second grade ring gear promptly, when can effectively avoid power input shaft not rotate, the rotation phenomenon that one-level planet gear and second grade planet gear take place.

3. The utility model discloses in adopt the roller bearing structure of coniform, can reduce axial force and outside impact force, make speed reducer work more steady.

4. The utility model discloses in can effectively play sealed and guard action through sealed lid, come effectual reduction to the impact force of second grade sun tooth through the gasket simultaneously to can prolong the life-span of second grade sun tooth.

5. The utility model discloses in let power input shaft's rotation more stable through setting up deep groove ball bearing, guarantee stability and smoothness nature under the operating condition.

6. The utility model discloses in through setting up circlip, can effectively avoid the mutual interference between one-level sun tooth and the second grade sun tooth, stability is better.

7. The utility model discloses in can not only prevent silt, dust, aqueous vapor etc. from invading roller bearing outward through setting up the skeleton oil blanket, can also restrict the lubricating oil among the roller bearing and spill.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure: 11. a housing; 12. a power input shaft; 13. an end cap; 14. a power take-off shaft; 21. a first-stage sun gear; 22. a first-stage planet gear; 23. an intermediate shaft; 24. a secondary sun gear; 25. a second-stage planet gear; 26. a primary annular gear; 27. a secondary annular gear; 31. a primary shaft pin; 32. a secondary axle pin; 41. a roller bearing; 42. a deep groove ball bearing; 43. a circlip for the shaft; 44. framework oil seal; 51. a sealing cover; 52. a gasket; 53. and (7) a top block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, a brake detection dedicated planetary reducer includes a casing 11, a power input shaft 12, an end cover 13 and a power output shaft 14, wherein one end of the power input shaft 12 is connected to the output of a motor, and the other end extends into the casing 11, the end cover 13 is fixed on the casing 11 through a bolt and covers the power input shaft 12, one end of the power output shaft 14 is located in the casing 11 and is linked with the power input shaft 12, and the other end extends out from the inside of the casing 11; a planetary reduction gear mechanism is provided in the casing 11 between the power input shaft 12 and the power output shaft 14, and the reduction output of the power output shaft 14 is realized by the planetary reduction gear mechanism. The above structure is used as the basic structure of the speed reducer and will not be further described here.

The planetary reduction transmission mechanism comprises a primary sun gear 21, a primary planetary gear component, an intermediate shaft 23, a secondary sun gear 24, a secondary planetary gear component, a primary inner gear ring 26 and a secondary inner gear ring 27; wherein,

the primary sun gear 21 and the power input shaft 12 are fixed and coaxially arranged;

the primary planetary gear assembly comprises at least two primary planet gears 22, each primary planet gear 22 is arranged along the periphery of the primary sun gear 21 and forms meshing transmission with the primary sun gear 21, and a primary shaft pin 31 for limiting the position of each primary planet gear 22 is arranged in the shell 11;

the intermediate shafts 23 are arranged between the secondary sun gear 24 and the primary planet gears 22 respectively, and the synchronous linkage of the secondary sun gear 24 and the primary planet gears 22 is realized through the intermediate shafts 23;

the secondary planetary gear assembly comprises at least two secondary planetary gears 25, each secondary planetary gear 25 is arranged along the periphery of the secondary sun gear 24 and forms meshing transmission with the secondary sun gear 24, and a secondary shaft pin 32 for limiting the position of each secondary planetary gear 25 is arranged in the shell 11;

the power output shafts 14 are respectively fixed with the secondary planet gears 25, so that speed reduction output is realized under the rotation of the secondary planet gears 25;

the primary ring gear 26 and the secondary ring gear 27 are both arranged inside the machine shell 11, the primary ring gear 26 corresponds to and is meshed with the positions of the primary planet gears 22, and the secondary ring gear 27 corresponds to and is meshed with the positions of the secondary planet gears 25.

In the present exemplary embodiment, the number of primary planet gears 22 and secondary planet gears 25 is 4.

The working principle of the embodiment is as follows: the power input shaft 12 drives the first-stage sun gear 21 to rotate, the first-stage sun gear 21 drives each first-stage planetary gear 22 on the periphery of the first-stage sun gear to rotate, and further each first-stage planetary gear 22 synchronously drives the second-stage sun gear 24 to rotate through the intermediate shaft 23, and because each second-stage planetary gear 25 is meshed with the second-stage sun gear 24, the speed reduction output of the second-stage planetary gear 25 is formed.

The further setting is that: roller bearings 41 are provided on the outer periphery of the power output shaft 14 inside the housing 11, and each roller bearing 41 has a conical shape. The number of the roller bearings 41 is 2 in the present embodiment.

The further setting is that: a seal cover 51 is mounted on one side of the secondary sun gear 24 facing the power output shaft 14, a gasket 52 is arranged between the seal cover 51 and the secondary sun gear 24, and a top block 53 abutting against the gasket 52 is fixedly arranged on the secondary sun gear 24.

The further setting is that: a deep groove ball bearing 42 is provided inside the housing 11 on the outer periphery of the power input shaft 12.

The further setting is that: a shaft circlip 43 is provided between the primary sun gear 21 and the secondary sun gear 24.

The further setting is that: the housing 11 is provided with a frame oil seal 44 for sealing the roller bearing 41 at one side of the power output shaft 14, and preferably, a T-shaped frame oil seal is adopted in the present embodiment.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A special planetary reducer for braking detection comprises a shell (11), a power input shaft (12), an end cover (13) and a power output shaft (14), wherein one end of the power input shaft (12) is connected with the output of a motor, the other end of the power input shaft extends into the shell (11), the end cover (13) is fixed on the shell (11) through a bolt and covers the power input shaft (12), one end of the power output shaft (14) is located in the shell (11) and is linked with the power input shaft (12), and the other end of the power output shaft extends out of the interior of the shell (11); a planetary reduction transmission mechanism positioned between the power input shaft (12) and the power output shaft (14) is arranged in the shell (11), and the reduction output of the power output shaft (14) is realized through the planetary reduction transmission mechanism; the method is characterized in that: the planetary reduction transmission mechanism comprises a primary sun gear (21), a primary planet gear component, an intermediate shaft (23), a secondary sun gear (24), a secondary planet gear component, a primary inner gear ring (26) and a secondary inner gear ring (27); wherein,

the primary sun gear (21) and the power input shaft (12) are fixed and coaxially arranged;

the primary planetary gear assembly comprises at least two primary planetary gears (22), each primary planetary gear (22) is arranged along the periphery of a primary sun gear (21) and forms meshing transmission with the primary sun gear (21), and a primary shaft pin (31) for limiting the position of each primary planetary gear (22) is arranged in the shell (11);

the intermediate shafts (23) are arranged between the secondary sun gear (24) and the primary planet gears (22), and the synchronous linkage of the secondary sun gear (24) and the primary planet gears (22) is realized through the intermediate shafts (23);

the secondary planetary gear assembly comprises at least two secondary planetary gears (25), the secondary planetary gears (25) are arranged along the periphery of the secondary sun gear (24) and are in meshing transmission with the secondary sun gear (24), and a secondary shaft pin (32) for limiting the position of each secondary planetary gear (25) is arranged in the shell (11);

the power output shaft (14) is respectively fixed with each secondary planetary gear (25), so that the speed reduction output is realized under the rotation of each secondary planetary gear (25);

the primary ring gear (26) and the secondary ring gear (27) are both arranged inside the shell (11), the primary ring gear (26) corresponds to and is meshed with the positions of the primary planet gears (22), and the secondary ring gear (27) corresponds to and is meshed with the positions of the secondary planet gears (25).

2. The brake detection dedicated planetary reducer according to claim 1, characterized in that: roller bearings (41) are arranged on the periphery of the power output shaft (14) in the shell (11), and each roller bearing (41) is conical.

3. The brake detection dedicated planetary reducer according to claim 1, characterized in that: a sealing cover (51) is arranged on one side of the secondary sun gear (24) facing the power output shaft (14), a gasket (52) is arranged between the sealing cover (51) and the secondary sun gear (24), and a jacking block (53) which is abutted against the gasket (52) is fixedly arranged on the secondary sun gear (24).

4. The brake detection dedicated planetary reducer according to claim 1, characterized in that: a deep groove ball bearing (42) is arranged on the periphery of the power input shaft (12) in the machine shell (11).

5. The brake detection dedicated planetary reducer according to claim 1, characterized in that: an elastic retainer ring (43) for a shaft is arranged between the primary sun gear (21) and the secondary sun gear (24).

6. The brake detection dedicated planetary reducer according to claim 2, characterized in that: and a framework oil seal (44) for sealing the roller bearing (41) is arranged on one side of the power output shaft (14) of the shell (11).