CN216009477U

CN216009477U - Spline plug-in type gear output structure

Info

Publication number: CN216009477U
Application number: CN202121424806.5U
Authority: CN
Inventors: 彭鹏; 陆慧; 郑加洲; 刘汝波; 袁伸
Original assignee: CSSC Nanjing Luzhou Machine Co Ltd
Current assignee: CSSC Nanjing Luzhou Machine Co Ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2022-03-11
Anticipated expiration: 2031-06-25

Abstract

The utility model discloses a spline insertion type gear output structure, which comprises an output shaft, a shell, a bearing, a cover plate, a small gear ring and an end cover, wherein the output shaft is rotationally connected with the shell through the bearing; can realize the gear of different numbers of teeth and modulus through changing little ring gear and pair, low in manufacturing cost and be convenient for maintain, the use occasion is wider.

Description

Spline plug-in type gear output structure

Technical Field

The utility model relates to the field of planetary reducers, in particular to a spline plug-in type gear output structure.

Background

The planetary reducer has the advantages of large output torque, compact structure, wide transmission ratio range, high efficiency and the like, and is widely applied to industrial occasions, such as the industries of ship deck machinery, engineering construction machinery, wind power generation machinery and the like. An output pinion of the planetary reducer is meshed with the large gear ring to output rotating speed and torque. The output pinion of the existing planetary reducer generally adopts an integrated gear shaft, so that the material utilization rate is low and the manufacturing cost is high; the module and the tooth number of the pinion are fixed, and the pinion can only be matched with a large gear ring with a specific specification, so that the application range is small; meanwhile, the pinion is used as a heavy part, so that the maintenance and the replacement are not convenient. There is a need for a splined male gear output configuration to solve the above problems.

Disclosure of Invention

The utility model aims to provide a spline plug-in type gear output structure to solve the problems in the prior art.

The utility model provides a spline plug-in gear output structure, includes output shaft, casing, bearing, apron, little ring gear and end cover, the output shaft passes through the bearing and is connected with the casing rotation, apron and output shaft fixed connection and with casing clearance fit, little ring gear and the terminal splined connection of output shaft, the end cover sets up in little ring gear bottom to with output shaft fixed connection.

As a further improvement of the technical scheme, an annular groove is formed in the outer side of the upper end of the cover plate, a V-shaped sealing ring is sleeved on the annular groove, and the cover plate is connected with the shell in a dynamic sealing mode through the V-shaped sealing ring.

As a further improvement of the technical scheme, the lower end of the output shaft is provided with an external spline, an internal spline is arranged inside the small gear ring, the external spline of the output shaft is in clearance fit connection with the internal spline of the small gear ring, the internal spline and the external spline are arranged, the small gear ring can be replaced, and gears with different tooth numbers and different moduli are paired.

As a further improvement of the technical scheme, a counter bore is formed in the end cover, a screw hole is formed in the bottom of the output shaft, the screw is fixedly connected with the screw hole through the counter bore, and the screw is fixedly connected with the output shaft to compress the small gear ring.

As a further improvement of the technical scheme, the bearing is connected with the shell in an interference fit mode.

The utility model has the beneficial effects that:

the utility model has simple and reasonable structure, overcomes the defects of low material utilization rate and high manufacturing cost of the integrated gear shaft and the defects of fixed modulus and tooth number of the pinion and inconvenient replacement and maintenance; can realize the gear of different numbers of teeth and modulus through changing little ring gear and pair, low in manufacturing cost and be convenient for maintain, the use occasion is wider.

Drawings

Fig. 1 is a sectional view of a spline-inserted gear output structure of the present invention.

In the figure: 1. the device comprises an output shaft, 2, a shell, 3, a bearing, 4, a V-shaped sealing ring, 5, a cover plate, 6, a small gear ring, 7, an end cover, 8 and a screw.

Detailed Description

The technical scheme of the utility model is further explained in detail by combining the attached drawings:

example (b): as shown in fig. 1, a spline-inserted gear output structure comprises an output shaft 1, a housing 2, a bearing 3, a cover plate 5, a small gear ring 6 and an end cover 7, wherein the output shaft 1 is rotatably connected with the housing 2 through the bearing 3, the bearing 3 is used for supporting the output shaft 1, the cover plate 5 is fixedly connected with the output shaft 1 and is in clearance fit with the housing 2, the small gear ring 6 is in splined connection with the tail end of the output shaft 1, and the end cover 7 is arranged at the bottom of the small gear ring 6 and is fixedly connected with the output shaft 1.

An annular groove 5a is formed in the outer side of the upper end of the cover plate 5, a V-shaped sealing ring 4 is sleeved on the annular groove 5a, the cover plate 5 is connected with the shell 2 in a dynamic sealing mode through the V-shaped sealing ring 4, and the V-shaped sealing ring 4 is used for sealing the shell 2.

The lower end of the output shaft 1 is provided with an external spline 1a, an internal spline 6a is arranged in the small gear ring 6, and the external spline 1a of the output shaft 1 is in clearance fit connection with the internal spline 6a of the small gear ring 6.

A counter bore 7a is formed in the end cover 7, a screw hole 1b is formed in the bottom of the output shaft 1, a screw 8 is fixedly connected with the screw hole 1b through the counter bore 7a, the screw 8 is connected with the end cover 7 and the output shaft 1, and meanwhile the small gear ring 6 is compressed.

The bearing 3 is connected with the shell 2 in an interference fit manner.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to further illustrate the principles of the utility model, and that various changes and modifications may be made without departing from the spirit and scope of the utility model, which is also intended to be covered by the appended claims. The scope of the utility model is defined by the claims and their equivalents.

Claims

1. The utility model provides a spline plug-in gear output structure, its characterized in that, includes output shaft (1), casing (2), bearing (3), apron (5), little ring gear (6) and end cover (7), output shaft (1) is rotated with casing (2) through bearing (3) and is connected, apron (5) and output shaft (1) fixed connection and with casing (2) clearance fit, little ring gear (6) and the terminal splined connection of output shaft (1), end cover (7) set up in little ring gear (6) bottom to with output shaft (1) fixed connection.

2. A spline-inserted gear output structure according to claim 1, wherein an annular groove (5a) is formed on the outer side of the upper end of the cover plate (5), a V-shaped sealing ring (4) is sleeved on the annular groove (5a), and the cover plate (5) is in dynamic sealing connection with the housing (2) through the V-shaped sealing ring (4).

3. A spline-inserted gear output structure according to claim 1, characterized in that the lower end of the output shaft (1) is provided with an external spline (1a), the small gear ring (6) is internally provided with an internal spline (6a), and the external spline (1a) of the output shaft (1) is in clearance fit connection with the internal spline (6a) of the small gear ring (6).

4. A spline insertion type gear output structure according to claim 1, wherein a counter bore (7a) is arranged in the end cover (7), a screw hole (1b) is arranged in the bottom of the output shaft (1), and the screw (8) is fixedly connected with the screw hole (1b) through the counter bore (7 a).

5. A spline-inserted gear output structure according to claim 1, characterized in that the bearing (3) is connected with the housing (2) in an interference fit.

6. The spline-inserted gear output structure according to claim 1, wherein a ring groove (5a) is provided on the outer side of the upper end of the cover plate (5), a V-shaped sealing ring (4) is sleeved on the ring groove (5a), the cover plate (5) is fixedly connected with the output shaft (1) and is in dynamic sealing connection with the housing (2) through the V-shaped sealing ring (4), an external spline (1a) is provided at the lower end of the output shaft (1), an internal spline (6a) is provided inside the small gear ring (6), the external spline (1a) of the output shaft (1) is in clearance fit connection with the internal spline (6a) of the small gear ring (6), a counter bore (7a) is provided in the end cover (7), a screw hole (1b) is provided in the bottom of the output shaft (1), and a screw (8) is fixedly connected with the screw hole (1b) through the counter bore (7a), the end cover (7) is fixedly connected with the output shaft (1) through a screw (8), and the bearing (3) is connected with the shell (2) in an interference fit manner.