CN219082215U - Speed reducer planetary gear with dustproof function - Google Patents

Abstract

The utility model discloses a speed reducer planetary gear with a dustproof function, which comprises a fixed toothed ring, a sun gear, planetary gears, cylindrical rods, a rotating disc, an input shaft and an output shaft, wherein three planetary gears are uniformly arranged in the fixed toothed ring in a rolling manner, the sun gear is arranged in the fixed toothed ring, the cylindrical rods are fixedly arranged at the rear ends of the three planetary gears, a brake disc is arranged at the rear side of the fixed toothed ring, the rear ends of the cylindrical rods extend to the outer side of the fixed toothed ring and are in rotary connection with the rotating disc, the output shaft is fixedly arranged at the rear end of the rotating disc, and the input shaft is fixedly arranged at the middle position of the front end of the sun gear. The utility model not only can facilitate the dustproof protection of the planetary gear through the installation of the first sealing plate and the second sealing plate, but also can ensure that the limiting bolt is attached to the L-shaped rod through screwing the limiting bolt, so as to fix the position of the L-shaped rod, and can facilitate the disassembly of the first sealing plate and the second sealing plate through the elasticity of the first spring and the second spring.

Description

Speed reducer planetary gear with dustproof function

Technical Field

The utility model relates to the technical field of planetary gears, in particular to a speed reducer planetary gear with a dustproof function.

Background

The planetary gear reducer is also called a planetary reducer, and the servo reducer. In the speed reducer family, the planetary speed reducer has the advantages of small size, high transmission efficiency, wide speed reduction range, high precision and the like, when the planetary speed reducer is used, the planetary speed reducer needs to be radiated, the surface of the shell of the speed reducer is provided with a radiating groove, and the design of the radiating groove enables external impurities to easily enter the planetary gear to influence the normal operation of the planetary speed reducer, so that the planetary gear with a dustproof function is needed.

At present, the sealing gaskets are arranged at the front end and the rear end of the planetary gear to prevent dust, but the sealing gaskets lack an effective clamping function, so that the sealing gaskets are easy to fall off, the dustproof effect of the planetary gear is poor, the damage of the planetary gear reducer is easy to cause, and the stability of the use of the planetary gear reducer is improved.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a speed reducer planetary gear with a dustproof function.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a speed reducer planetary gear with dustproof function, includes fixed ring gear, sun gear, planet wheel, cylindrical bar, rolling disc, input shaft and output shaft, three planet wheel of inside even rolling installation of fixed ring gear, fixed ring gear internally mounted has the sun gear, and the sun gear meshes with three planet wheel respectively, and is three all fixed mounting has the cylindrical bar in planet wheel rear end, the brake disc is installed to fixed ring gear rear side, the cylindrical bar rear end extends to fixed ring gear outside and rolling disc rotation and is connected, rolling disc rear end fixed mounting has the output shaft, sun gear front end intermediate position fixed mounting has the input shaft, fixed ring gear outside evenly rotates and installs three L type pole, fixed ring gear annular side is gone up evenly slidable mounting three T type fixture block one and three T type fixture block two, both ends all install shrouding one and two on the annular side, evenly set up three spacing hole on the shrouding one annular side, T type fixture block one end extends to spacing hole inside, set up on the annular side of shrouding two, T type fixture block one end extends to annular groove one end inside annular groove.

Further, the fixed tooth ring front end is even fixed mounting more than two fixed blocks, and two adjacent fixed blocks between fixed block fixed mounting have the fixed pin, rotate on the fixed pin annular side and install L type pole.

Further, a torsion spring is arranged on the annular side face of the fixing pin, the outer side of the torsion spring is fixedly arranged inside the L-shaped rod, and one end of the L-shaped rod is attached to the rotating disc.

Further, a first spring is installed on the annular side surface of the first T-shaped clamping block, two ends of the first spring are respectively and fixedly installed on the first T-shaped clamping block and the annular side surface of the fixed toothed ring, a second spring is installed on the annular side surface of the second T-shaped clamping block, and two ends of the second spring are respectively and fixedly installed on the second T-shaped clamping block and the annular side surface of the fixed toothed ring.

Furthermore, four positioning blocks are uniformly and fixedly arranged on the front side of the inner wall of the fixed tooth ring, four positioning grooves are uniformly formed in one annular side surface of the sealing plate, and the positioning blocks are assembled in the positioning blocks.

Furthermore, a limit bolt is installed at one end of the L-shaped rod, a threaded hole is formed in the annular side face of the fixed toothed ring, and one end of the limit bolt penetrates through the L-shaped rod and is installed inside the threaded hole.

Further, a ball groove is formed in one end, close to the rotating disc, of the L-shaped rod, balls are installed in the ball groove in a rolling mode, and the spherical side face of each ball is attached to one end of the rotating disc.

Further, the rotating disc is close to the fixed tooth ring, three fixed barrels are evenly and fixedly installed at one end of the rotating disc, and one end of the cylindrical rod rotates inside the three fixed barrels respectively.

The beneficial effects of the utility model are as follows:

1. through the installation of shrouding first and shrouding second, be convenient for carry out dustproof protection to planetary gear, install shrouding first at fixed ring gear inside front side, install shrouding second at fixed ring gear inside rear side simultaneously, L type pole rotates and extrudees T type fixture block first and T type fixture block second, T type fixture block first receives the extrusion to remove into spacing downthehole portion, and then fixed shrouding first's position, T type fixture block second receives the extrusion to remove into the ring channel inside, and then fixed shrouding second's position, and then accomplishes the dustproof protection to planetary gear.

2. Through twisting limit bolt for limit bolt and L type pole laminating, and then the position of fixed L type pole, L type pole rotates and drives limit bolt and follow the removal, makes limit bolt and screw hole align, twists limit bolt, and limit bolt removes along the screw hole and makes limit bolt and L type pole laminating, and then fixes the position of L type pole, has improved the stability of first and two installations of shrouding.

3. The first and second sealing plates are convenient to detach through the elastic force of the first and second springs, the first and second springs are respectively extruded in the moving process of the first and second T-shaped clamping blocks, the first and second springs generate elastic force, the first and second T-shaped clamping blocks are convenient to move and reset through the elastic force of the first and second springs, the first and second sealing plates are convenient to detach, and the inside of the planetary gear is convenient to maintain.

Drawings

Fig. 1 is a schematic diagram of a perspective front view of a planetary gear of a speed reducer with a dustproof function according to the present utility model;

fig. 2 is a schematic diagram of a three-dimensional side view structure of a planetary gear of a speed reducer with a dustproof function according to the present utility model;

FIG. 3 is a schematic diagram of a partial sectional structure of a planetary gear of a speed reducer with dustproof function according to the present utility model;

fig. 4 is a schematic diagram of a partial enlarged structure of a planetary gear of a speed reducer with a dustproof function according to the present utility model.

In the figure: 1. fixing the toothed ring; 2. a sun gear; 3. a planet wheel; 4. a cylindrical rod; 5. a rotating disc; 6. an input shaft; 7. an output shaft; 8. an L-shaped rod; 9. a first sealing plate; 10. a second sealing plate; 11. a T-shaped clamping block I; 12. a first spring; 13. a limiting hole; 14. a T-shaped clamping block II; 15. a second spring; 16. an annular groove; 17. a fixed block; 18. a fixing pin; 19. a torsion spring; 20. a limit bolt; 21. a ball; 22. a fixed cylinder; 23. and (5) positioning blocks.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

Referring to fig. 1-4, a speed reducer planetary gear with dustproof function comprises a fixed toothed ring 1, a sun gear 2, planetary gears 3, a cylindrical rod 4, a rotating disc 5, an input shaft 6 and an output shaft 7, wherein three planetary gears 3 are uniformly and rollingly arranged in the fixed toothed ring 1, the planetary gears 3 are meshed with the fixed toothed ring 1, the sun gear 2 is internally arranged in the fixed toothed ring 1, the sun gear 2 is meshed with the three planetary gears 3 respectively, the sun gear 2 rotates to drive the planetary gears 3 to rotate, meanwhile, the planetary gears 3 roll along the fixed toothed ring 1, the rear ends of the three planetary gears 3 are provided with the cylindrical rods 4 through key connection, the rear sides of the fixed toothed ring 1 are provided with brake discs, the rear ends of the cylindrical rods 4 extend to the outer sides of the fixed toothed ring 1 to be rotatably connected with the rotating disc 5, the planetary gears 3 rotate while the cylindrical rods 4 are driven to rotate, the planetary gears 3 rotate along the fixed toothed ring 1, an output shaft 7 is fixedly arranged at the rear end of the rotating disc 5, the rotating disc 5 rotates to drive the output shaft 7 to rotate, further, power output is realized, an input shaft 6 is fixedly arranged at the middle position of the front end of the sun wheel 2, the power is conveniently transmitted to the sun wheel 2 through the design of the input shaft 6, three L-shaped rods 8 are uniformly rotatably arranged on the outer side of the fixed toothed ring 1, three T-shaped clamping blocks I11 and three T-shaped clamping blocks II 14 are uniformly and slidably arranged on the annular side surface of the fixed toothed ring 1, a sealing plate I9 and a sealing plate II 10 are respectively arranged at the front end and the rear end of the fixed toothed ring 1, the design of the sealing plate I9 and the sealing plate II 10 is convenient for carrying out dustproof protection on a planetary gear, three limiting holes 13 are uniformly processed on the annular side surface of the sealing plate I9, one end of the T-shaped clamping block I11 extends into the limiting holes 13, the design of the T-shaped clamping blocks I11 and the limiting holes 13 is convenient for clamping and fixing the sealing plate I9, an annular groove 16 is formed in the annular side face of the second sealing plate 10, one end of the second T-shaped clamping block 14 extends into the annular groove 16, the second T-shaped clamping block 14 and the annular groove 16 are designed to facilitate installation of the second sealing plate 10, and the annular groove 16 is designed to facilitate rotation of the second sealing plate 10 along with rolling of the planet wheel 3 along the fixed toothed ring 1.

In the utility model, more than two fixing blocks 17 are uniformly welded at the front end of the fixed toothed ring 1, a fixing pin 18 is installed between two adjacent fixing blocks 17 through screws, an L-shaped rod 8 is rotatably installed on the annular side surface of the fixing pin 18, the fixing pin 18 is designed to facilitate the rotation installation of the L-shaped rod 8, a torsion spring 19 is welded on the annular side surface of the fixing pin 18, the outer side of the torsion spring 19 is welded inside the L-shaped rod 8, the torsion spring 19 is designed to facilitate the rotation reset of the L-shaped rod 8, one end of the L-shaped rod 8 is attached to the rotating disc 5, the L-shaped rod 8 is designed to facilitate the clamping and limiting of the position of the rotating disc 5, a first spring 12 is assembled on the annular side surface of the T-shaped clamping block 11, two ends of the first spring 12 are respectively welded on the first T-shaped clamping block 11 and the annular side surface of the fixed toothed ring 1, the first spring 12 is designed to facilitate the movement reset of the first T-shaped clamping block 11, a second spring 15 is assembled on the annular side surface of the T-shaped clamping block 14, two ends of the second spring 15 are respectively welded on the annular side surface of the T-shaped clamping block 14 and the annular side surface of the fixed toothed ring 1, and the second spring 15 is designed to facilitate the movement reset of the second T-shaped clamping block 14.

In particular, four locating pieces 23 are evenly welded on the front side of the inner wall of the fixed toothed ring 1, four locating grooves are evenly formed in the annular side face of the sealing plate 9, the locating pieces 23 are assembled inside the locating pieces 23, the installation of the sealing plate 9 is facilitated due to the design of the locating pieces 23 and the locating grooves, the T-shaped clamping block 11 and the limiting holes 13 are aligned, the limiting bolts 20 are installed at one end of the L-shaped rod 8, threaded holes are formed in the annular side face of the fixed toothed ring 1, one end of each limiting bolt 20 penetrates through the L-shaped rod 8 and is installed inside the threaded holes, the limiting bolts 20 and the threaded holes are designed to be convenient for fixing the position of the L-shaped rod 8, a ball groove is formed in one end of the L-shaped rod 8, a ball 21 is installed in the ball groove in a rolling mode, the ball groove is attached to one end of the rotating plate 5, friction force between the L-shaped rod 8 and the rotating plate 5 is reduced due to the design of the ball 21, three fixing cylinders 22 are evenly welded on one end of the rotating plate 5, one end of the three cylindrical rods 4 are respectively rotated inside the three fixing cylinders 22, and the design of the fixing cylinders 22 is convenient for rotating the cylindrical rods 4 to be connected with the rotating plate 5.

Working principle: when the planetary gear needs to be dustproof and protected, first 9 of the sealing plates is installed on the front side inside the fixed toothed ring 1, the limiting groove on first 9 of the sealing plates is installed on the outer side of the limiting block, then the limiting hole 13 on first 9 of the sealing plates is aligned with first 11 of the T-shaped clamping blocks, second 10 of the sealing plates is installed on the rear side inside the fixed toothed ring 1, the rotating disc 5 is installed on the cylindrical rod 4, then the L-shaped rod 8 is rotated around the fixing pin 18, the L-shaped rod 8 rotates to extrude the torsion spring 19, the torsion spring 19 is caused to generate torsion force, the L-shaped rod 8 rotates to extrude first 11 of the T-shaped clamping blocks and second 14 of the T-shaped clamping blocks, the first 11 of the T-shaped clamping blocks is extruded to move into the limiting hole 13, then the first 9 of the T-shaped clamping blocks is fixed, the second 14 of the T-shaped clamping blocks is extruded to move into the annular groove 16, then the position of the second 10 of the sealing plates is fixed, then the planetary gear is dustproof and protected, the L-shaped rod 8 rotates to drive the limiting bolt 20 to move along with the threaded hole, the limiting bolt 20 is aligned with the threaded hole, the limiting bolt 20 is screwed, and the limiting bolt 20 is screwed, and the limiting bolt 20 moves along the threaded hole to move to the L-shaped rod 8 to be attached to the L-shaped rod 8.

The first spring 12 and the second spring 15 are respectively extruded in the moving process of the first T-shaped clamping block 11 and the second T-shaped clamping block 14, so that the first spring 12 and the second spring 15 generate elastic force, the elastic force of the first spring 12 and the second spring 15 is convenient for moving and resetting the first T-shaped clamping block 11 and the second T-shaped clamping block 14, and further the first sealing plate 9 and the second sealing plate 10 are convenient to detach, and further the planetary gear is convenient to maintain.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components.

Claims (8)

1. The utility model provides a speed reducer planetary gear with dustproof function, includes fixed ring gear (1), sun gear (2), planet wheel (3), cylinder pole (4), rolling disc (5), input shaft (6) and output shaft (7), three planet wheel (3) are installed to inside even roll of fixed ring gear (1), fixed ring gear (1) internally mounted has sun gear (2), and sun gear (2) respectively with three planet wheel (3) engaged with, three all fixed mounting has cylinder pole (4) in planet wheel (3) rear end, brake disc is installed to fixed ring gear (1) rear side, cylinder pole (4) rear end extends to fixed ring gear (1) outside and rolling disc (5) rotation connection, rolling disc (5) rear end fixed mounting has output shaft (7), input shaft (6) are installed to fixed ring gear (2) front end intermediate position fixed mounting, its characterized in that, evenly install three L type pole (8) in the outside of fixed ring gear (1) annular side face on evenly slide one T (11) and three T (14) and two annular seal plates (9) are seted up on two annular face (13) and two annular seal plates (9) are all seted up on two annular face seal plates, one end of the first T-shaped clamping block (11) extends to the inside of the limiting hole (13), an annular groove (16) is formed in the annular side face of the second sealing plate (10), and one end of the second T-shaped clamping block (14) extends to the inside of the annular groove (16).

2. The speed reducer planetary gear with the dustproof function according to claim 1, wherein more than two fixing blocks (17) are uniformly and fixedly arranged at the front end of the fixed toothed ring (1), a fixing pin (18) is fixedly arranged between two adjacent fixing blocks (17), and an L-shaped rod (8) is rotatably arranged on the annular side surface of the fixing pin (18).

3. The speed reducer planetary gear with the dustproof function according to claim 2, wherein a torsion spring (19) is installed on the annular side face of the fixing pin (18), the outer side of the torsion spring (19) is fixedly installed inside an L-shaped rod (8), and one end of the L-shaped rod (8) is attached to the rotating disc (5).

4. The planetary gear with the dustproof function of the speed reducer of claim 1, wherein the first spring (12) is installed on the annular side surface of the first T-shaped clamping block (11), two ends of the first spring (12) are fixedly installed on the first T-shaped clamping block (11) and the annular side surface of the fixed toothed ring (1) respectively, the second spring (15) is installed on the annular side surface of the second T-shaped clamping block (14), and two ends of the second spring (15) are fixedly installed on the second T-shaped clamping block (14) and the annular side surface of the fixed toothed ring (1) respectively.

5. The planetary gear with the dustproof function for the speed reducer, according to claim 1, is characterized in that four positioning blocks (23) are uniformly and fixedly arranged on the front side of the inner wall of the fixed toothed ring (1), four positioning grooves are uniformly formed in the annular side surface of the first sealing plate (9), and the positioning blocks (23) are assembled inside the positioning blocks (23).

6. The speed reducer planetary gear with the dustproof function according to claim 1, wherein a limit bolt (20) is installed at one end of the L-shaped rod (8), a threaded hole is formed in the annular side face of the fixed gear ring (1), and one end of the limit bolt (20) penetrates through the L-shaped rod (8) and is installed inside the threaded hole.

7. The speed reducer planetary gear with the dustproof function according to claim 1, wherein a ball groove is formed in one end, close to the rotating disc (5), of the L-shaped rod (8), balls (21) are installed in the ball groove in a rolling mode, and the spherical side face of each ball (21) is attached to one end of the rotating disc (5).

8. The speed reducer planetary gear with the dustproof function according to claim 1, wherein three fixed cylinders (22) are uniformly and fixedly arranged at one end of the rotating disc (5) close to the fixed toothed ring (1), and one end of each of the three cylindrical rods (4) rotates inside the corresponding fixed cylinder (22).

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