CN220600373U - Sun gear transmission structure - Google Patents

Abstract

The utility model relates to the technical field of sun gears and discloses a sun gear transmission structure which comprises a shell, wherein an upper fixing plate is fixedly connected to the top end of the shell, a driving assembly is arranged on the left side of the top end of the upper fixing plate, a sun gear is fixedly connected to the bottom end of the driving assembly, a limiting plate is rotatably connected to the outside of the driving assembly, three fixing columns are fixedly connected to the bottom of the limiting plate, planetary gears are rotatably connected to the middle sides of the outside of the fixing columns, a gear ring is slidably connected to the outside of the limiting plate, the planetary gears are in meshed connection with the gear ring, and another limiting plate is fixedly connected to the bottom end of the fixing column. According to the utility model, the function of changing various rotating speeds of the sun gear transmission structure is realized, the application scene of different rotating speed demands is adapted, the adaptability is enhanced, the function of adjusting the tightness of the belt is realized, and the maintenance and the replacement of the belt are convenient.

Description

Sun gear transmission structure

Technical Field

The utility model relates to the technical field of sun gears, in particular to a sun gear transmission structure.

Background

The transmission structure refers to a structure or a component system for transmitting power, torque and motion, the working principle of the transmission structure is that the transmission structure is mainly based on the meshing of gears to mutually transmit the force and the torque, the planetary gear transmission is a common transmission structure, the sun gear in the transmission structure is a key element in the planetary gear transmission structure and is usually positioned at the center of the planetary gear transmission structure, and the transmission structure has the advantages of wide transmission ratio range, high transmission efficiency and stable transmission process, and can be suitable for more application scenes, so the transmission structure is widely applied to various fields.

Through retrieving, chinese patent literature with publication number CN216407667U discloses a large-scale high-speed sun gear, belongs to sun gear technical field, including the sun gear body, the surface fixed mounting of sun gear body has the spill cover, the one end threaded connection that the sun gear body was kept away from to the spill cover has first sleeve pipe, the one end fixed mounting that the spill was kept away from to first sleeve pipe has a protective tube, the inside sliding connection of spill cover has the transmission shaft, the internal surface fixed mounting of protective tube has the hydraulic stem, the flexible end fixedly connected with fixed block of hydraulic stem, one side that the hydraulic stem was kept away from to the fixed block and the surface swing joint of transmission shaft.

This large-scale high-speed sun gear uses through the cooperation of spill cover and first sheathed tube, fixes the position after the adjustment of protective casing, and the transmission shaft runs through the inside of the internal connection of protective casing to the spill cover, and the cooperation of rethread hydraulic stem and fixed block is used, and the position of transmission shaft is fixed in the location, has improved the stability when the sun gear uses. However, under the condition of fixed power of the power source in the transmission process, the capacity of changing the rotating speed of the power source is insufficient, the power source cannot adapt to transmission scenes requiring different rotating speeds, and the adaptability is reduced. Therefore, in order to solve the above-mentioned problems, a sun gear transmission structure is now proposed.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a sun gear transmission structure which can change the rotating speed by changing the position of a power source and other modes, so that the sun gear transmission structure is suitable for application scenes with different rotating speed requirements, and the adaptability is enhanced.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a sun gear transmission structure, includes the shell, the top fixedly connected with of shell goes up the fixed plate, the top left side of going up the fixed plate is provided with drive assembly, drive assembly's bottom fixedly connected with sun gear, drive assembly's outside rotates and is connected with the limiting plate, the bottom fixedly connected with three fixed column of limiting plate, the outside medial side of fixed column all rotates and is connected with the planet wheel, the outside sliding connection of limiting plate has the gear circle, the planet wheel is the meshing connection with the gear circle, the bottom fixedly connected with another limiting plate of fixed column, another the bottom fixedly connected with driving shaft of limiting plate, the bottom fixedly connected with bottom plate of shell, the top right side of shell is provided with linkage assembly;

through the technical scheme, the self rotating speed can be changed by changing the position of the power source and other modes, so that the device is suitable for application scenes with different rotating speed requirements, and the self adaptability is enhanced.

Further, the driving assembly comprises a motor and a driving shaft, the outer part of the motor is fixedly connected to the top end of the upper fixing plate, one end of the driving shaft is installed at the driving end of the motor, the other end of the driving shaft is fixedly connected to the top end of the sun gear, a belt is sleeved on the top side of the outer part of the driving shaft, and the bottom side of the outer part of the driving shaft is rotatably connected to the inner wall of the limiting plate;

through above-mentioned technical scheme, ensure to drive the sun gear rotation, make it drive the planet wheel rotatory to drive the driving shaft rotation of limiting plate bottom through the fixed column, external transmission.

Further, the linkage assembly comprises a driven shaft and a straight tooth cylinder, wherein the top side of the outer part of the driven shaft is rotationally connected with the inner wall of the right side of the upper fixing plate, the middle side of the outer part of the driven shaft is fixedly connected with the inner wall of the straight tooth cylinder, the bottom side of the outer part of the driven shaft is rotationally connected with the inner wall of the right side of the bottom plate, the bottom end of the driven shaft penetrates through the right side of the top end of the bottom plate and extends downwards, and the outer part of the straight tooth cylinder is in meshed connection with the outer part of the gear ring;

through above-mentioned technical scheme, can be through the mode with the power supply change to the driven shaft, drive straight tooth cylinder is rotatory, drives the gear circle and rotates to it is rotatory to drive the planet wheel, and drive the driving shaft of limiting plate bottom through the fixed column and rotate, external transmission.

Further, a lower fixing plate is fixedly connected to the middle side of the inner part of the shell, a fixing block is fixedly connected to the middle part of the front side of the lower fixing plate, a threaded rod is connected to the inner part of the fixing block in a threaded mode, an adjusting rotary table is fixedly connected to the front side of the threaded rod, a movable block is connected to the rear side of the threaded rod in a threaded mode, a pressing shaft is fixedly connected to the top end of the movable block, and a protective cover is fixedly connected to the bottom end of the left side of the upper fixing plate;

through above-mentioned technical scheme, can be through rotatory regulation carousel, the hold-down shaft at control movable block top is close to or keeps away from the belt to this realizes adjusting the function of belt elasticity, has avoided making the difficult problem of dismouting because of the belt is too tight, has made things convenient for the maintenance and the change of belt, has improved work efficiency.

Further, the far side of the inside of the belt is sleeved on the top side of the outside of the driven shaft, and the outside of the belt is in contact with the outside of the compression shaft;

through above-mentioned technical scheme, can make drive shaft pivoted drive driven shaft rotatory simultaneously to adjust the belt elasticity degree between the two through compressing tightly the axle, increase or reduce frictional force.

Further, a slot is formed in the front side of the lower fixed plate, the left end and the right end of the movable block are connected to the inner walls of the left side and the right side of the slot in a sliding mode, and the bottom end of the protective cover is fixedly connected to the left side of the top end of the lower fixed plate;

through above-mentioned technical scheme, can not take place the rotation by movable block self when adjusting, keep the level fixed, ensure that driving shaft and compression shaft connect the normal operating when driven shaft.

Further, the fixed block is fixedly connected to the front side of the shell, and the rear end of the threaded rod is rotatably connected to the front side of the slot;

through above-mentioned technical scheme, run through the front side of lower fixed plate and the front side of shell, ensure that the position of threaded rod can not take place the skew because of the rotation distance extension.

Further, the outer part of the driving shaft is rotatably connected to the left inner part of the bottom plate, and the bottom end of the driving shaft penetrates through the left side of the top end of the bottom plate and extends downwards;

through above-mentioned technical scheme, carry out further spacing to the driving end of driving shaft, prevent to take place dislocation and skew, ensure the stability of transmission process.

The utility model has the following beneficial effects:

1. according to the utility model, under the mutual matching of the structures of the driving shaft, the driven shaft, the straight-tooth cylinder and the like, the function of changing various rotating speeds of the sun gear transmission structure is realized, the application scenes of different rotating speed requirements are adapted, and the adaptability is enhanced.

2. According to the utility model, the function of adjusting the tightness of the belt is realized by mutually matching the structures of the adjusting turntable, the threaded rod, the movable block, the compression shaft and the like, the problem of difficult disassembly and assembly caused by overtightening of the belt is avoided, the maintenance and replacement of the belt are facilitated, and the working efficiency is improved.

Drawings

Fig. 1 is a perspective view of a sun gear transmission structure according to the present utility model;

fig. 2 is a schematic diagram of the internal structure of a housing of a sun gear transmission structure according to the present utility model;

fig. 3 is a schematic diagram illustrating a split sun gear structure of a sun gear transmission structure according to the present utility model;

fig. 4 is a schematic structural diagram of an adjusting turntable of a sun gear transmission structure according to the present utility model.

Legend description:

1. a housing; 2. an upper fixing plate; 3. a drive assembly; 301. a motor; 302. a drive shaft; 4. a sun gear; 5. a limiting plate; 6. fixing the column; 7. a planet wheel; 8. a gear ring; 9. a driving shaft; 10. a bottom plate; 11. a linkage assembly; 1101. a driven shaft; 1102. straight tooth cylinder; 12. a belt; 13. a lower fixing plate; 14. a fixed block; 15. adjusting a turntable; 16. a threaded rod; 17. a movable block; 18. a compression shaft; 19. and a protective cover.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, one embodiment provided by the present utility model is: the utility model provides a sun gear transmission structure, which comprises a housing 1, the top fixedly connected with of shell 1 goes up fixed plate 2, the top left side of going up fixed plate 2 is provided with drive assembly 3, the bottom fixedly connected with sun gear 4 of drive assembly 3, the outside rotation of drive assembly 3 is connected with limiting plate 5, the bottom fixedly connected with three fixed column 6 of limiting plate 5, the outside middle side of fixed column 6 all rotates and is connected with planet wheel 7, the outside sliding connection of limiting plate 5 has gear circle 8, planet wheel 7 is the meshing connection with gear circle 8, the bottom fixedly connected with another limiting plate 5 of fixed column 6, the bottom fixedly connected with driving shaft 9 of another limiting plate 5, the bottom fixedly connected with bottom plate 10 of shell 1, the top right side of shell 1 is provided with link assembly 11. The gear ring 8 is a gear steel ring with a concave shape, the inner wall of the gear steel ring is provided with a rack at the middle part only and meshed with the outer parts of the planetary gears 7 and rotates, the upper side and the lower side of the inner wall are planes, the upper plane and the lower plane are respectively connected in a sliding way through two limiting plates 5, and the upper plane and the lower plane are limited by the concave shape of the upper part and the lower part, so that the sun gear 4 and the planetary gears 7 are limited up and down. Compared with the traditional partial sun gear transmission structure, the structure can change the rotating speed of the motor through changing the position of the power source and other modes under the condition of fixed power of the power source, so that the motor is suitable for application scenes with different rotating speed demands, the situation that the motor cannot face the application scenes with different rotating speed demands is avoided, and the adaptability is enhanced.

As shown in fig. 2 and 3, the driving assembly 3 includes a motor 301 and a driving shaft 302, the outside of the motor 301 is fixedly connected to the top end of the upper fixing plate 2, one end of the driving shaft 302 is installed at the driving end of the motor 301, the other end of the driving shaft 302 is fixedly connected to the top end of the sun gear 4, a belt 12 is sleeved on the top side of the outside of the driving shaft 302, and the bottom side of the outside of the driving shaft 302 is rotatably connected to the inner wall of the limiting plate 5. The structure can drive the sun gear 4 to rotate, so that the sun gear 4 drives the planet gears 7 to rotate, and the driving shaft 9 at the bottom of the limiting plate 5 is driven to rotate through the fixed column 6 to externally drive.

As shown in fig. 2, the linkage assembly 11 includes a driven shaft 1101 and a straight toothed cylinder 1102, wherein the top side of the outer part of the driven shaft 1101 is rotatably connected to the inner wall of the right side of the upper fixing plate 2, the middle side of the outer part of the driven shaft 1101 is fixedly connected to the inner wall of the straight toothed cylinder 1102, the bottom side of the outer part of the driven shaft 1101 is rotatably connected to the inner wall of the right side of the bottom plate 10, the bottom end of the driven shaft 1101 penetrates the right side of the top end of the bottom plate 10 and extends downwards, and the outer part of the straight toothed cylinder 1102 is in meshed connection with the outer part of the gear ring 8. The structure can drive the straight-tooth cylinder 1102 to rotate by changing the power source to the driven shaft 1101, and drive the gear ring 8 to rotate, so that the planetary gears 7 are driven to rotate, and the driving shaft 9 at the bottom of the limiting plate 5 is driven to rotate through the fixed column 6 to externally drive.

As shown in fig. 4, a lower fixing plate 13 is fixedly connected to the middle side of the interior of the casing 1, a fixing block 14 is fixedly connected to the middle part of the front side of the lower fixing plate 13, a threaded rod 16 is connected to the interior of the fixing block 14 in a threaded manner, an adjusting turntable 15 is fixedly connected to the front side of the threaded rod 16, a movable block 17 is connected to the rear side of the threaded rod 16 in a threaded manner, a pressing shaft 18 is fixedly connected to the top end of the movable block 17, and a protective cover 19 is fixedly connected to the bottom end of the left side of the upper fixing plate 2. The structure can control the pressing shaft 18 at the top of the movable block 17 to be close to or far away from the belt 12 by rotating the adjusting turntable 15, so that the function of adjusting the tightness of the belt 12 is realized, the problem of difficult disassembly and assembly caused by overtightening of the belt 12 is avoided, the maintenance and replacement of the belt 12 are facilitated, and the working efficiency is improved.

As shown in fig. 2, the belt 12 is fitted on the outer top side of the driven shaft 1101 on the inner side thereof, and the belt 12 is in contact with the outer side of the pressing shaft 18 on the outer side thereof. The above structure can rotate the driving shaft 302 and simultaneously drive the driven shaft 1101 to rotate, and the belt 12 tightness between the driving shaft and the driven shaft is adjusted by the pressing shaft 18, so that the friction force is increased or reduced. The front side of the lower fixed plate 13 is provided with a slot, the left and right ends of the movable block 17 are slidably connected with the inner walls of the left and right sides of the slot, and the bottom end of the protective cover 19 is fixedly connected with the left side of the top end of the lower fixed plate 13. The above structure can prevent the movable block 17 from rotating during adjustment, keep the movable block horizontally fixed, and ensure normal operation when the driving shaft 302 and the pressing shaft 18 are connected with the driven shaft 1101.

As shown in fig. 1, the fixed block 14 is fixedly coupled to the front side of the housing 1, and the rear end of the threaded rod 16 is rotatably coupled to the grooved front side. The front side of the lower fixing plate 13 and the front side of the housing 1 are penetrated by the fixing block 14, so that the position of the threaded rod 16 is ensured not to deviate up and down due to the lengthening of the rotation distance.

As shown in fig. 2, the outside of the driving shaft 9 is rotatably connected to the inside of the left side of the bottom plate 10, and the bottom end of the driving shaft 9 extends downward through the left side of the top end of the bottom plate 10. The driving end of the driving shaft 9 can be further limited by the arrangement, dislocation and deviation are prevented, and the stability of the driving process is ensured.

Working principle: in the actual use process, three conditions can be divided according to the rotating speed requirement. Firstly, the driving end of a motor 301 passes through a shell 1 and an upper fixing plate 2 and is fixed at the top end of a driving shaft 302, the motor 301 is started to drive the driving shaft 302 to rotate, a sun gear 4 is driven to rotate by passing through a lower fixing plate 13, and three planetary gears 7 fixed by fixing columns 6 are driven to rotate on the inner wall of a gear ring 8 under the limit of a limit plate 5 and the planetary gears 7, so that a driving shaft 9 is driven to rotate and externally drive by passing through a bottom plate 10; the second is medium rotation speed, the driving end of the motor 301 passes through the shell 1 and the upper fixing plate 2 and is fixed at the top end of the driven shaft 1101, the motor 301 is started to drive the driven shaft 1101 to rotate, and the lower fixing plate 13 is used for driving the straight-tooth cylinder 1102 to rotate, so that the gear ring 8 is driven to rotate, the three planetary gears 7 fixed by the three fixing columns 6 in the gear ring 8 are driven to rotate, the driving shaft 9 is directly driven to rotate, and the driving shaft passes through the bottom plate 10 to externally drive; the third is a faster rotating speed, on the basis of the first condition, the driving shaft 302 and the driven shaft 1101 are connected through the belt 12, then the motor 301 is started to drive the motor 301 and the driven shaft 1101 to synchronously rotate, and then the driving shaft 302 and the straight-tooth cylinder 1102 drive the sun gear 4 to rotate and the gear ring 8 to rotate, so that the three planetary gears 7 keep static to a certain extent, and the driving shaft 9 is driven to rotate and externally drive through the bottom plate 10. When the belt 12 needs to be maintained and replaced, the adjusting turntable 15 at the front side of the fixed block 14 is rotated to drive the threaded rod 16 to rotate, so that the movable block 17 drives the pressing shaft 18 at the top of the movable block to move forwards and backwards, the belt 12 is pressed or loosened, the proper tightness of the belt 12 in the using process is ensured, the belt can be conveniently disassembled and assembled, and the inner structure is protected through the protective cover 19.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (8)

1. The utility model provides a sun gear transmission structure, includes shell (1), its characterized in that: the utility model discloses a motor drive unit, including shell (1), fixed plate (2) are gone up in top fixedly connected with of shell (1), the top left side of going up fixed plate (2) is provided with drive assembly (3), the bottom fixedly connected with sun gear (4) of drive assembly (3), the outside of drive assembly (3) rotates and is connected with limiting plate (5), the bottom fixedly connected with three fixed column (6) of limiting plate (5), the outside middle side of fixed column (6) all rotates and is connected with planet wheel (7), the outside sliding connection of limiting plate (5) has gear circle (8), planet wheel (7) are engaged connection with gear circle (8), the bottom fixedly connected with another limiting plate (5) of fixed column (6), another the bottom fixedly connected with driving shaft (9) of limiting plate (5), the bottom fixedly connected with bottom plate (10) of shell (1), the top right side of shell (1) is provided with link assembly (11).

2. A sun gear transmission structure according to claim 1 wherein: the driving assembly (3) comprises a motor (301) and a driving shaft (302), wherein the outer part of the motor (301) is fixedly connected to the top end of the upper fixing plate (2), one end of the driving shaft (302) is installed at the driving end of the motor (301), the other end of the driving shaft (302) is fixedly connected to the top end of the sun gear (4), a belt (12) is sleeved on the top side of the outer part of the driving shaft (302), and the bottom side of the outer part of the driving shaft (302) is rotatably connected to the inner wall of the limiting plate (5).

3. A sun gear transmission structure according to claim 1 wherein: the linkage assembly (11) comprises a driven shaft (1101) and a straight-tooth cylinder (1102), wherein the outer top side of the driven shaft (1101) is rotationally connected with the right side inner wall of the upper fixing plate (2), the outer middle side of the driven shaft (1101) is fixedly connected with the inner wall of the straight-tooth cylinder (1102), the outer bottom side of the driven shaft (1101) is rotationally connected with the right side inner wall of the bottom plate (10), the bottom end of the driven shaft (1101) penetrates through the right side of the top end of the bottom plate (10) and extends downwards, and the outer part of the straight-tooth cylinder (1102) is in meshed connection with the outer part of the gear ring (8).

4. A sun gear transmission structure according to claim 1 wherein: the inside middle side fixedly connected with lower fixed plate (13) of shell (1), the front side middle part fixedly connected with fixed block (14) of lower fixed plate (13), the inside threaded connection of fixed block (14) has threaded rod (16), the front side fixedly connected with of threaded rod (16) adjusts carousel (15), the outside rear side threaded connection of threaded rod (16) has movable block (17), the top fixedly connected with of movable block (17) compresses tightly axle (18), the left side bottom fixedly connected with protection casing (19) of last fixed plate (2).

5. A sun gear transmission structure according to claim 2, wherein: the belt (12) is sleeved on the top side of the outside of the driven shaft (1101) at the far side of the inside, and the outside of the belt (12) is contacted with the outside of the pressing shaft (18).

6. A sun gear transmission structure according to claim 4 wherein: the front side of the lower fixed plate (13) is provided with a slot, the left end and the right end of the movable block (17) are slidably connected to the inner walls of the left side and the right side of the slot, and the bottom end of the protective cover (19) is fixedly connected to the left side of the top end of the lower fixed plate (13).

7. A sun gear transmission structure according to claim 4 wherein: the fixed block (14) is fixedly connected to the front side of the shell (1), and the rear end of the threaded rod (16) is rotatably connected to the front side of the slot.

8. A sun gear transmission according to claim 1 wherein; the outside rotation of driving shaft (9) is connected in the inside of the top left side of bottom plate (10), the bottom of driving shaft (9) runs through the top left side of bottom plate (10) and downwardly extending.