CN214367632U

CN214367632U - Transmission structure for bearing sleeve embedding in gear box

Info

Publication number: CN214367632U
Application number: CN202023331450.9U
Authority: CN
Inventors: 施俊锋; 杨雄子; 郑志刚
Original assignee: SUZHOU ASIA PACIFIC METAL CO LTD
Current assignee: Suzhou Asia Pacific Jingrui Transmission Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-10-08
Anticipated expiration: 2030-12-30

Abstract

A transmission structure embedded in a bearing sleeve in a gear box is characterized in that a disk shaft and a transmission gear are sleeved outside the left end of a sun gear, the disk shaft is in transmission connection with the sun gear, and the transmission gear is in shaft connection with the disk shaft; the right end of the sun gear is meshed with the planet gear, the middle part of the planet gear is connected with a planet shaft, the planet shaft is connected with a planet carrier, and the planet carrier is in transmission connection with the output gear; be equipped with first bearing between planet wheel and the planet axle, be equipped with the second bearing between planet carrier and the disc axle, be equipped with the third bearing between planet carrier and the box, the third bearing cover inlays in the second bearing outside. The utility model embeds the third bearing in the outer side of the second bearing, compared with the non-nested structure with parallel bearings, the axial size is shortened, the space is saved, the weight of the device is reduced, and the light weight of the product is facilitated; the outer ring of the second bearing has the same rotating speed as the planet carrier, the inner ring of the second bearing has the same rotating speed as the disk shaft, and the planet carrier and the disk shaft have a rotating speed difference, so that the rotating speed of the second bearing is slower than that of a structure without sleeving and embedding, and the service life of the bearing can be prolonged.

Description

Transmission structure for bearing sleeve embedding in gear box

Technical Field

The utility model belongs to the technical field of the gear box improves, concretely relates to transmission structure that bearing housing inlayed in gear box.

Background

The gearbox is also called a gearbox, is an important part widely applied to mechanical transmission, is a power transmission mechanism, and is also a speed reduction transmission device; the gear box is a device which converts the rotating speed of the motor into the rotating speed required by the working equipment and increases the torque through the meshing of gears with different tooth numbers.

At present, most of existing gear box structures are common, and engineers have more changes in the initial design due to the complex structures, so that the gear boxes cannot be designed to be compact in most cases, the gear boxes are large in size, large in occupied space during installation, difficult to install, large in occupied space during transportation, and high in transportation cost; as the application of the gear box is more and more extensive, most of structures of the gear box are perfected, the gear box does not need to be frequently modified after the design is completed, and the problem of inconvenience caused by the large size of the gear box is considered. Therefore, a transmission structure with a bearing sleeve embedded in a gear box is designed.

It should be noted that the above background description is only for the sake of clarity and complete description of the technical solutions of the present invention, and is set forth for facilitating understanding of those skilled in the art. These solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present invention.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a transmission structure embedded by a bearing sleeve in a gear box.

In order to achieve the above objects and other related objects, the present invention provides a technical solution: a transmission structure embedded in a bearing sleeve in a gear box comprises a sun gear, wherein a disc shaft and a transmission gear are sleeved outside the left end of the sun gear, the disc shaft is in transmission connection with the sun gear, and the transmission gear is in fastening connection with the disc shaft; the right end of the sun gear is meshed with the planet gear, the middle part of the planet gear is connected with a planet shaft, the planet shaft is connected with a planet carrier, and the planet carrier is in transmission connection with the output gear; the planet wheel with be provided with first bearing between the planet axle, the planet carrier with be provided with the second bearing between the disc axle, be provided with the third bearing between planet carrier and the box, the third bearing cover inlays the outside setting of second bearing.

The preferable technical scheme is as follows: the centerline of the second bearing coincides with the centerline of the third bearing.

The preferable technical scheme is as follows: the first bearing is located the inside of planet wheel and the cover is established on the planet axle, the epaxial cover of planet is equipped with the distance ring, the distance ring is located the inside of planet wheel, first bearing is provided with two and is located respectively the both sides of distance ring.

The preferable technical scheme is as follows: the planet carrier is arranged outside the sun gear, and the second bearing is arranged between the left end of the planet carrier and the right end of the disc shaft.

The preferable technical scheme is as follows: the output gear is provided with double rows of teeth, and the left end of the output gear is arranged on the inner side of the right end of the planet carrier and is meshed with the planet carrier.

The preferable technical scheme is as follows: the center line of the output gear coincides with the center line of the sun gear.

Because of the application of the technical scheme, compared with the prior art, the utility model the advantage that has is:

the bearing nested structure of the utility model embeds the third bearing in the outer side of the second bearing, compared with the non-nested structure which is arranged in parallel between the traditional bearings, the axial size is shortened, the space is saved, the installation and the transportation are convenient, the equipment weight is reduced, and the product light weight is facilitated; in addition, the outer ring of the second bearing has the same rotating speed as the planet carrier, the inner ring of the second bearing has the same rotating speed as the disk shaft, and the planet carrier and the disk shaft have rotating speed difference, so that the rotating speed of the second bearing is slower than that of a traditional structure without sleeving and embedding, and the service life of the bearing can be prolonged.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the above figures, a sun gear 1, a disc shaft 2, a transmission gear 3, a planet gear 4, a planet shaft 5, a planet carrier 6, an output gear 7, a first bearing 8, a distance ring 9, a second bearing 10, a third bearing 11 and a box body 12.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b): as shown in fig. 1, a transmission structure embedded in a bearing sleeve in a gear box comprises a sun gear 1, wherein a disk shaft 2 and a transmission gear 3 are sleeved outside the left end of the sun gear 1, the disk shaft 2 is in transmission connection with the sun gear 1, and the transmission gear 3 is in fastening connection with the disk shaft 2; the right end of the sun gear 1 is meshed with a planet gear 4, the middle part of the planet gear 4 is connected with a planet shaft 5, the planet shaft 5 is connected with a planet carrier 6, and the planet carrier 6 is in transmission connection with an output gear 7; be provided with first bearing 8 between planet wheel 4 and the planet axle 5, be provided with second bearing 10 between planet carrier 6 and the disc axle 2, be provided with third bearing 11 between planet carrier 6 and the box 12, third bearing 11 cover inlays the outside setting at second bearing 10.

The preferred embodiment is: as shown in fig. 1, the centerline of the second bearing 10 coincides with the centerline of the third bearing 11.

The preferred embodiment is: as shown in fig. 1, the first bearing 8 is located inside the planetary gear 4 and sleeved on the planetary shaft 5, the planetary shaft 5 is sleeved with the distance ring 9, the distance ring 9 is located inside the planetary gear 4, and the first bearings 8 are provided with two and located on two sides of the distance ring 9 respectively. The distance ring is used for axially positioning the bearing inner ring, so that the structure stability is ensured.

The preferred embodiment is: as shown in fig. 1, the carrier 6 is disposed outside the sun gear 1, and a second bearing 10 is disposed between the left end of the carrier 6 and the right end of the disc shaft 2. The second bearing 10 is arranged between the disc shaft 2 and the planet carrier 6, and has a compact structure and is convenient to mount.

The preferred embodiment is: as shown in fig. 1, the output gear 7 is provided with two rows of teeth, and the left end of the output gear 7 is disposed inside the right end of the carrier 6 and is engaged therewith.

The preferred embodiment is: as shown in fig. 1, the center line of the output gear 7 coincides with the center line of the sun gear 1. The stable operation is ensured.

The preferred embodiment is: as shown in fig. 1, the planet shaft 5 is hollow, so that the lubricating oil can flow conveniently, the first bearing 8 can be lubricated, the rigidity of the planet shaft can be improved, the structure is compact, and the overall weight can be reduced.

The principle is as follows: the driving device drives the transmission gear to rotate; the transmission gear is fixedly connected with the disk shaft, and the disk shaft is connected with the sun wheel through a spline, so that the transmission gear can drive the sun wheel to rotate through the disk shaft; because the sun wheel is meshed with the planet wheel, and a bearing is arranged between the planet wheel and the planet shaft and can rotate relatively, the planet shaft revolves around the sun wheel; because the planet shaft is connected with the planet carrier, and the planet carrier is connected with the output gear, the output gear rotates to output power.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a transmission structure that bearing housing inlayed in gear box which characterized in that: the sun gear comprises a sun gear, wherein a disc shaft and a transmission gear are sleeved outside the left end of the sun gear, the disc shaft is in transmission connection with the sun gear, and the transmission gear is in fastening connection with the disc shaft; the right end of the sun gear is meshed with the planet gear, the middle part of the planet gear is connected with a planet shaft, the planet shaft is connected with a planet carrier, and the planet carrier is in transmission connection with the output gear; the planet wheel with be provided with first bearing between the planet axle, the planet carrier with be provided with the second bearing between the disc axle, be provided with the third bearing between planet carrier and the box, the third bearing cover inlays the outside setting of second bearing.

2. The transmission structure of the bearing sleeve embedded in the gearbox as claimed in claim 1, wherein: the centerline of the second bearing coincides with the centerline of the third bearing.

3. The transmission structure of the bearing sleeve embedded in the gearbox as claimed in claim 2, wherein: the first bearing is located the inside of planet wheel and the cover is established on the planet axle, the epaxial cover of planet is equipped with the distance ring, the distance ring is located the inside of planet wheel, first bearing is provided with two and is located respectively the both sides of distance ring.

4. The transmission structure of the bearing sleeve embedded in the gearbox as claimed in claim 3, wherein: the planet carrier is arranged outside the sun gear, and the second bearing is arranged between the left end of the planet carrier and the right end of the disc shaft.

5. The transmission structure of the bearing sleeve embedded in the gearbox as claimed in claim 4, wherein: the output gear is provided with double rows of teeth, and the left end of the output gear is arranged on the inner side of the right end of the planet carrier and is meshed with the planet carrier.

6. The transmission structure of the bearing sleeve embedded in the gearbox as claimed in claim 5, wherein: the center line of the output gear coincides with the center line of the sun gear.