CN219327761U

CN219327761U - Planetary gear reducer structure with long service life

Info

Publication number: CN219327761U
Application number: CN202221864430.4U
Authority: CN
Inventors: 薛志刚; 王栋; 张旭强
Original assignee: Yixing Guoan Deceleration Transmission Equipment Co ltd
Current assignee: Yixing Guoan Deceleration Transmission Equipment Co ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2023-07-11
Anticipated expiration: 2032-07-20

Abstract

The utility model discloses a planetary gear reducer structure with long service life, which relates to the technical field of speed reducing devices and comprises an upper box body, a gear ring and a lower box body, wherein the lower box body is positioned on the left side of the gear ring, the upper box body is positioned on the right side of the gear ring, the right side of the upper box body is fixedly connected with an end cover through a screw, a first bearing is fixedly sleeved in the upper box body, an input shaft is fixedly sleeved in the inner wall of the first bearing, one end of the input shaft penetrates through and extends to the outside of the end cover, and a drum-shaped tooth sleeve is sleeved on the outer wall of the other end of the end cover.

Description

Planetary gear reducer structure with long service life

Technical Field

The utility model relates to the technical field of speed reducers, in particular to a planetary gear speed reducer structure with long service life.

Background

The principle of the planetary reduction structure adopted in the planetary gear reducer is as follows: the planetary gears revolve around a sun gear while rotating, so that speed reduction is realized, and the planetary gear has the following characteristics when the planetary gear structure is adopted for transmission: high load, large transmission ratio, and can split power when transmitting power. With the continuous development of technology, more and more products begin to use planetary gear reducers.

Firstly, when the internal gear of the planetary gear reduction mechanism in the prior art needs to be maintained and replaced, the disassembly and assembly are quite inconvenient, secondly, the planetary carriers of the planetary gear reduction mechanism in the planetary gear reduction mechanism group in the prior art are designed in a single-sided manner, so that the stability of the planetary gear reduction mechanism group is poor, the noise is large, and the like.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a planetary gear reducer structure with long service life.

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

the utility model provides a long service life's planetary gear reducer structure, includes box, ring gear and lower box, the lower box is located the left side of ring gear, it is located the right side of ring gear to go up the box, go up the right side of box and pass through screw fixedly connected with end cover, the inside fixed first bearing that has cup jointed of box, the inner wall of first bearing is fixed to have cup jointed the input shaft, the one end of input shaft runs through and extends to the outside of end cover, drum tooth cover has been cup jointed to the other end outer wall of end cover, sun gear has been cup jointed to the opposite side of drum tooth cover, the outer wall meshing of sun gear has the planet wheel, the planet wheel meshes with the internal tooth of ring gear mutually, the inner wall of planet wheel has cup jointed fourth bearing, the inner wall of fourth bearing has cup jointed the planet axle, the right-hand member of planet axle has fixedly cup jointed first planet carrier, the left end of planet axle has fixedly cup jointed the second planet carrier, the recess has been seted up to the inner wall of left side of second planet carrier, the left side recess joint spline shaft.

Preferably, the side wall of the gear ring is provided with a plurality of through holes, the through holes are arrayed along the circle center of the gear ring at equal intervals, bolts are sleeved in the through holes of the gear ring, one ends of the bolts are fixedly connected with the upper box body, and the other ends of the bolts are fixedly connected with the lower box body.

Preferably, the lower box body is circular, a plurality of through holes are formed in the left side of the lower box body, and the through holes are arranged at equal intervals along the circle center of the lower box body.

Preferably, the number of the planetary gears is three, and the three planetary gears are arranged at equal intervals along the axis of the sun gear.

Preferably, the outer wall of the other side of the first planet carrier is fixedly sleeved with a second bearing, the outer wall of the second bearing is fixedly connected with the inner wall of the upper box body, the outer wall of the other side of the second planet carrier is fixedly sleeved with a third bearing, the outer wall of the third bearing is fixedly connected with the inner wall of the lower box body, and the second planet carrier is fixedly connected with the first planet carrier through screws.

Preferably, two sides of the crown gear sleeve are fixedly connected with cover plates through screws, and the two cover plates are respectively sleeved with the input shaft and the sun gear.

The beneficial effects of the utility model are as follows:

1. in the utility model, the shell is respectively composed of the upper box body, the gear ring and the lower box body, the upper box body, the gear ring and the lower box body are sequentially arranged along the axial direction by adopting a three-section design, the upper box body, the gear ring and the lower box body are detachably connected, and when the sun gear needs to be maintained and replaced, the upper box body, the input shaft and the sun gear are only required to be integrally detached, so that the modularized disassembly and assembly of the planetary gear reduction mechanism are realized.

2. According to the utility model, the lower box body and the flange are integrally arranged, so that the speed reducer structure is conveniently and directly arranged on the machine tool, the axial dimension of the device is shortened, the main shaft of the machine tool is enabled to be transmitted more stably, the service life is long, the gear ring is directly used as the shell of the speed reducer, the space can be saved, the overall height of the planetary gear speed reducing mechanism is reduced, the miniaturized design is realized, and the production cost is reduced.

3. According to the utility model, three planetary gears are arranged to simultaneously transmit load, so that power is split, acting force can be halved, the service life of the mechanism is prolonged, the first planetary gear frame and the second planetary gear frame are matched for use and are connected through screws, the working stability of the planetary gears is improved compared with that of the traditional single-sided planetary gear frame, meanwhile, the left end of the second planetary gear frame and the right end of the first planetary gear frame are respectively provided with a third bearing and a second bearing, and due to bearing support, the transmission is more stable, and the working reliability is higher.

In a word, the utility model has the advantages of reasonable structure, space saving, low cost, high compatibility, low noise, strong integrity, long service life and the like.

Drawings

Fig. 1 is a front view of a long life planetary gear reducer structure of the present utility model.

Fig. 2 is a schematic structural view of a planetary gear reducer with a long service life according to the present utility model.

Fig. 3 is a left side view of a long life planetary gear reducer structure of the present utility model.

Fig. 4 is a schematic structural view of an upper case of a planetary gear reducer structure with a long service life according to the present utility model.

Fig. 5 is a schematic structural view of a ring gear of a planetary gear speed reducer structure with a long service life according to the present utility model.

Fig. 6 is a schematic structural view of a lower case of a planetary gear reducer structure with a long service life of the present utility model.

Fig. 7 is a schematic structural view of a cover plate of a planetary gear reducer structure with long service life according to the present utility model.

Fig. 8 is a schematic structural view of a first planet carrier of a long-life planetary gear reducer structure according to the present utility model.

Fig. 9 is a left side view of a first planet carrier of a long life planetary gear reducer structure of the present utility model.

Fig. 10 is a schematic structural view of a second carrier of a long-life planetary gear reducer structure according to the present utility model.

Fig. 11 is a right side view of a second planet carrier of a long life planetary gear reducer structure of the present utility model.

Fig. 12 is a schematic structural view of a spline shaft of a planetary gear speed reducer structure with a long service life of the present utility model.

Reference numerals in the drawings: 1. an upper case; 2. a gear ring; 3. a lower box body; 4. an input shaft; 5. an end cap; 6. a first bearing; 7. a sun gear; 8. a crown gear sleeve; 9. a cover plate; 10. a second bearing; 11. a first planet carrier; 12. a second carrier; 13. a third bearing; 14. a planetary shaft; 15. a fourth bearing; 16. a planet wheel; 17. a spline shaft; 18. and (5) a bolt.

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.

Examples:

as shown in fig. 1 to 12:

the utility model provides a long service life's planetary gear reducer structure, including last box 1, ring gear 2 and lower box 3, lower box 3 is located the left side of ring gear 2, go up box 1 and be located the right side of ring gear 2, go up box 1's right side and pass through screw fixedly connected with end cover 5, go up box 1's inside fixed first bearing 6 of cup jointing, the inner wall of first bearing 6 is fixed cup jointing input shaft 4, the one end of input shaft 4 runs through and extends to the outside of end cover 5, drum tooth cover 8 has been cup jointed to the other end outer wall of end cover 5, sun gear 7 has been cup jointed to the opposite side of drum tooth cover 8, planetary gear 16 has meshed with the internal tooth of ring gear 2, planetary gear 16 has cup jointed fourth bearing 15 with the inner wall of planetary gear 16, planetary shaft 14 has been cup jointed to the inner wall of fourth bearing 15, planetary shaft 14's right-hand member fixed first planet carrier 11 has been cup jointed to the left end of planetary shaft 14, the left side inner wall of second planet carrier 12 has seted up the recess, the left side recess inner joint spline shaft 17 of second planet carrier 12.

The side wall of the gear ring 2 is provided with a plurality of through holes which are arranged at equal intervals along the circle center of the gear ring 2, bolts 18 are sleeved in the through holes of the gear ring 2, one end of each bolt 18 is fixedly connected with the upper box body 1, the other end of each bolt 18 is fixedly connected with the lower box body 3, the gear ring 2 is directly used as the shell of the speed reducer, the space can be saved, the production cost is reduced, the lower box body 3 is circular, the left side of the lower box body 3 is provided with a plurality of through holes which are arranged at equal intervals along the circle center of the lower box body 3, the lower box body 3 and the flange are integrally arranged, the speed reducer structure is conveniently and directly arranged on a machine tool, the number of planetary gears 16 is three, the three planetary gears 16 are arranged at equal intervals along the axle center of the sun gear 7, and the three planetary gears 16 are arranged for simultaneously transmitting loads, so that the power is split, the acting force can be halved, and the service life of the mechanism is prolonged, the opposite side outer wall of first planet carrier 11 is fixed to be cup jointed second bearing 10, the outer wall of second bearing 10 and the inner wall fixed connection of last box 1, the opposite side outer wall fixed sleeve of second planet carrier 12 has third bearing 13, the outer wall of third bearing 13 and the inner wall fixed connection of lower box 3, second planet carrier 12 passes through screw fixed connection with first planet carrier 11, the left end of second planet carrier 12 and the right-hand member of first planet carrier 11 set up third bearing 13 and second bearing 10 respectively, owing to have the bearing to support, it is higher to drive, operational reliability is also higher, the both sides of drum tooth cover 8 all pass through screw fixedly connected with apron 9, two apron 9 cup joint each other with input shaft 4 and sun gear 7 respectively, the stability of input shaft 4 and sun gear 7 connection is improved through the design of apron 9.

Specific use and action of the embodiment:

when the utility model is used, as the left side of the lower box body 3 is provided with a plurality of through holes, the lower box body 3 is connected with a machine tool through bolts, the extending end of the input shaft 4 is connected with the output shaft of an external motor through a coupling, the input shaft 4 is connected with the sun gear 7 through the drum-shaped gear sleeve 8, the input shaft 4 drives the sun gear 7 to rotate, the sun gear 7 drives the planetary gears 16 and the planetary shafts 14 to drive the second planetary carrier 12 and the first planetary carrier 11 to rotate, the second planetary carrier 12 is meshed with the spline shaft 17, the second planetary carrier 12 drives the spline shaft 17 to rotate, the spline shaft 17 is mutually clamped with the machine tool, and the spline shaft 17 drives the spindle of the machine tool to rotate.

The above structure and process are shown in fig. 1-12.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a long service life's planetary gear reducer structure, includes last box (1), ring gear (2) and lower box (3), its characterized in that, lower box (3) are located the left side of ring gear (2), go up the right side that box (1) is located ring gear (2), the right side of going up box (1) is through screw fixedly connected with end cover (5), the inside fixed first bearing (6) that cup joints of box (1) go up, the fixed input shaft (4) that cup joints of inner wall of first bearing (6), the one end of input shaft (4) runs through and extends to the outside of end cover (5), the other end outer wall of end cover (5) cup joints drum tooth cover (8), the opposite side of drum tooth cover (8) cup joints sun gear (7), the outer wall meshing of sun gear (7) has planetary gear (16), planetary gear (16) mesh with the tooth of ring gear (2), the inner wall of planetary gear (16) has cup jointed fourth bearing (15), the inner tooth that planetary carrier (14) has cup jointed the inner tooth of fourth bearing (14), the inner tooth carrier (14) has cup jointed the inner tooth carrier (12) of planetary carrier (14), the planetary carrier (12) has cup jointed the inner tooth carrier (12), a spline shaft (17) is clamped in a groove on the left side of the second planet carrier (12).

2. The planetary gear reducer structure with long service life according to claim 1, wherein a plurality of through holes are formed in the side wall of the gear ring (2), the through holes are equidistantly arranged along the circle center of the gear ring (2), bolts (18) are sleeved in the through holes of the gear ring (2), one end of each bolt (18) is fixedly connected with the upper box body (1), and the other end of each bolt (18) is fixedly connected with the lower box body (3).

3. The long-service-life planetary gear reducer structure according to claim 1, wherein the lower box body (3) is circular, a plurality of through holes are formed in the left side of the lower box body (3), and the through holes are equidistantly arranged along the circle center of the lower box body (3).

4. A long life planetary gear reducer structure according to claim 1, wherein said planetary gears (16) are three, and said three planetary gears (16) are arranged equidistantly along the axis of the sun gear (7).

5. The planetary gear reducer structure with long service life according to claim 1, wherein a second bearing (10) is fixedly sleeved on the outer wall of the other side of the first planet carrier (11), the outer wall of the second bearing (10) is fixedly connected with the inner wall of the upper box body (1), a third bearing (13) is fixedly sleeved on the outer wall of the other side of the second planet carrier (12), the outer wall of the third bearing (13) is fixedly connected with the inner wall of the lower box body (3), and the second planet carrier (12) is fixedly connected with the first planet carrier (11) through screws.

6. The long-life planetary gear reducer structure according to claim 1, wherein two sides of the crown gear sleeve (8) are fixedly connected with cover plates (9) through screws, and the two cover plates (9) are respectively sleeved with the input shaft (4) and the sun gear (7) mutually.