CN216143118U

CN216143118U - Highly modularized speed change device

Info

Publication number: CN216143118U
Application number: CN202121363407.2U
Authority: CN
Inventors: 纪洲; 纪林; 白广伟; 聂志强
Original assignee: Shanghai Zhoudao Industrial Co ltd
Current assignee: Shanghai Zhoudao Industrial Co ltd
Priority date: 2021-06-19
Filing date: 2021-06-19
Publication date: 2022-03-29
Anticipated expiration: 2031-06-19

Abstract

The utility model discloses a highly modular speed change device, which comprises a worm and a worm wheel, wherein the worm and the worm wheel are meshed with each other; the middle part of the worm wheel is provided with an output gear which is fixedly connected with the output rod in the axial direction; the side surface of the turbine is fixedly connected with a shaft sleeve, the shaft sleeve is connected with a transmission gear through a transmission bearing, and the transmission gear is meshed with the output gear; and one end of the worm is provided with a shaft connecting mechanism for connecting an output shaft of a motor to be speed-changed. The utility model can achieve the effects of small occupied space, convenient design and increased safety factor.

Description

Highly modularized speed change device

Technical Field

The present invention relates to transmissions, and more particularly to a modular transmission.

Background

At present when having the variable speed demand, the more commonly used technical scheme is at a speed reducer of coupling joint behind the motor, on being connected to required pivoted part, when the output of required variable speed increases or when the variable speed requirement changes, just need increase and decrease motor and speed reducer, this just leads to when different demands and the output of because speed increase, the purchase cost of equipment increases, also can lead to very loaded down with trivial details when the actual operation is changed, and it will occupy a lot of spaces to increase motor and speed reducer, cause the difficulty in the design, and the connection of multistage motor speed reducer will lead to the reduction of factor of safety, lead to the reliability of equipment not enough.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings, the present invention provides a highly modular transmission device, which can achieve the effects of small occupied space, convenient design and increased safety factor.

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

a highly modular transmission comprising a worm and a worm gear, the worm and the worm gear intermeshed; the middle part of the worm wheel is provided with an output gear which is fixedly connected with the output rod in the axial direction; the side surface of the turbine is fixedly connected with a shaft sleeve, the shaft sleeve is connected with a transmission gear through a transmission bearing, and the transmission gear is meshed with the output gear; and one end of the worm is provided with a shaft connecting mechanism for connecting an output shaft of a motor to be speed-changed.

According to one aspect of the utility model, the shaft sleeve is provided with a shaft hole in the middle, an output bearing is arranged in the shaft hole, and the output shaft is movably connected with the shaft sleeve through the output bearing.

According to one aspect of the utility model, the transmission gear is a duplicate gear, two output gears distributed axially are arranged in the middle of the worm gear, and two ends of the transmission gear are respectively matched with the two output gears.

According to one aspect of the utility model, the highly modular transmission is externally provided with a protective casing.

According to one aspect of the utility model, a limit bearing for limiting the highly modular transmission is arranged outside the shaft sleeve, and the highly modular transmission is mounted in the protective shell through the limit bearing.

According to one aspect of the utility model, both ends of the worm are movably connected with the protective shell through bearings.

The implementation of the utility model has the advantages that: the highly modular transmission comprises a worm and a worm wheel, wherein the worm and the worm wheel are meshed with each other; the middle part of the worm wheel is provided with an output gear which is fixedly connected with the output rod in the axial direction; the side surface of the turbine is fixedly connected with a shaft sleeve, the shaft sleeve is connected with a transmission gear through a transmission bearing, and the transmission gear is meshed with the output gear; one end of the worm is provided with a shaft connecting mechanism for connecting an output shaft of a motor to be speed-changed, so that the utility model highly integrates worm and gear transmission, occupies small space, is convenient to design and improves safety factor.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic exterior view of a highly modular transmission of the present invention without a protective cover;

FIG. 2 is a schematic diagram of the engagement of the worm gear, the transmission gear and the output gear in a highly modular transmission according to the present invention;

FIG. 3 is a schematic diagram of the engagement of the transmission gears and the output gears in a highly modular transmission according to the present invention;

FIG. 4 is a schematic view of the structural relationship of a highly modular transmission bushing with other components according to the present invention;

FIG. 5 is a schematic exterior view of a highly modular transmission belt protective sleeve according to the present invention;

FIG. 6 is a front view of the worm gear of the embodiment;

FIG. 7 is a front view of the worm according to the embodiment;

FIG. 8 is a front view of the output shaft according to the embodiment;

FIG. 9 is a front view of a drive gear according to an embodiment;

FIG. 10 is a schematic external view of a bushing according to an embodiment;

FIG. 11 is a side view of the bushing according to an embodiment;

FIG. 12 is a schematic exterior view of the body of the case according to the exemplary embodiment;

FIG. 13 is a schematic external view of a worm limiting cover according to an embodiment;

fig. 14 is an appearance schematic diagram of a limiting plate according to the embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, a highly modular transmission includes a worm 1 and a worm wheel 2. The worm and the worm wheel are matched with each other through the rack of the worm and the gear of the worm wheel. The worm is the power input of the highly modular transmission. One end of the worm is provided with a coupler mounting hole 3 and a screw hole, one end of the worm can be fixedly provided with a coupler through the coupler mounting hole and the screw hole, and then is connected with the output end of a to-be-speed-change motor through the coupler.

As shown in fig. 2, 3 and 6, the worm wheel is hollow, and a hole for receiving the output gear 4 is provided in the center of the worm wheel. Three transmission gears 5 are arranged around the output gear, and the worm gear is also provided with a hole for accommodating the transmission gears; in this embodiment, the four holes are interconnected to form a hollow structure with three holes extending radially from the central hole to the periphery.

Two output gears are axially arranged in the center of the worm wheel. As shown in fig. 8, the output gear is integrally connected to the output shaft 6 of the highly modular transmission in the axial direction. The two output shafts are distributed on two sides of the worm wheel and point to opposite directions.

The output gear is matched with the transmission gear. In the present embodiment, as shown in fig. 9, the transmission gear is a duplicate gear, and both ends of the transmission gear are respectively matched with the two output gears; in contrast, the two output gears are of different specifications, which correspond to the specifications of one end of the mating drive gear. The angular speeds at the two ends of the duplicate gear are the same, and the angular speeds output by the two output gears are different through different gear specifications, so that the two output shafts can output at different angular speeds.

As shown in fig. 4, both sides of the worm wheel are respectively connected with a shaft sleeve 7 through bolts. The center of the shaft sleeve is provided with a large shaft hole, and the output shaft passes through the shaft hole; still be equipped with deep groove ball bearing 8 between shaft hole and the output shaft, output shaft and shaft hole pass through deep groove ball bearing swing joint.

As shown in FIG. 11, three mounting holes are formed on one side of the shaft sleeve close to the worm wheel, and the three mounting holes are uniformly distributed around the shaft hole. As shown in fig. 9, two ends of the transmission gear are connected with transmission bearings, and the transmission bearings at the two ends of the transmission gear are respectively arranged in the mounting holes of the two opposite shaft sleeves.

After the output end of the variable speed motor is connected with the worm through the coupler, the worm is driven to rotate, and the worm drives the worm wheel to rotate. Because the worm wheel is fixedly connected with the shaft sleeve, the shaft sleeve also rotates along with the worm wheel. The shaft sleeve drives the three transmission gears to rotate around the output gear and drives the output gear to rotate at a low speed, and the output gear drives the output shaft to rotate, so that the purpose of variable speed output is achieved.

As shown in fig. 5, 12, 13 and 14, a protective sleeve is arranged outside the highly modular transmission. The protective sleeve comprises a protective sleeve main body, and the top of the side surface of the protective sleeve main body is connected with a worm limiting cover 9 through a bolt; the other side surface adjacent to the side surface is connected with a limit plate 10 through a bolt.

The upper portion of the protective sleeve main body is provided with a cylindrical upper hollow structure for mounting the worm, and the lower portion of the protective sleeve main body is provided with a cylindrical lower hollow structure for mounting a worm wheel and parts connected with the worm wheel. The top of the lower hollow structure is also provided with a waist hole 11, and the upper hollow structure and the lower hollow structure are communicated through the waist hole. The waist hole leaves space for the worm, so that the rack of the worm can enter the hollow structure at the lower part, and is matched with the gear of the worm wheel.

The outer side of the shaft sleeve is provided with an angular contact ball bearing 12, and a unidirectional bearing stop collar is arranged in the lower hollow structure. One shaft sleeve is connected with the bearing limit sleeve through an angular contact ball bearing. The limiting plate is also provided with a one-way bearing limiting sleeve. The other shaft sleeve is also connected with the bearing stop sleeve through an angular contact ball bearing. The limiting directions of the two one-way bearing limiting sleeves are opposite. After the two shaft sleeves are limited, the worm gear is limited in the axial direction due to the fact that the worm gear is fixedly connected with the two shaft sleeves.

The shaft sleeve is also provided with a sealing ring 13, and the sealing ring is arranged on one side, away from the worm wheel, of the bearing on the outer side of the shaft sleeve.

One end of the upper hollow structure is provided with a one-way bearing limit sleeve, and one end of the worm is provided with a bearing and is arranged in the one-way bearing limit sleeve; the worm limiting cover is arranged outside the one-way bearing limiting sleeve, the one-way bearing limiting sleeve is also arranged on the worm limiting cover, the limiting directions of the two one-way bearing limiting sleeves are opposite, and the bearing at one end of the worm is arranged between the two one-way bearing limiting sleeves, so that the purpose of limiting the worm is achieved.

And the other end of the worm is provided with a bearing and a coupling mounting hole. The other end of the upper hollow structure is provided with a bearing limit sleeve, and the other end of the worm is arranged in the bearing limit sleeve through a bearing.

The output shaft is fixedly connected with a steel ring 14 for limiting through bolts.

The implementation of the embodiment has the following advantages:

the worm gear and worm and gear transmission are highly integrated, the occupied space is small, and the plug and play and optimized structure can be more conveniently designed.

Only one input end is provided with two output ends with different rotating speeds, and the rotating speed of the output ends can be configured with transmission gears and output gears with corresponding specifications according to different requirements, so that the complex design requirements can be met.

The design of high modularization for on-the-spot assembly is all very convenient with the later stage replacement, has improved conveying efficiency and assembly efficiency, has made things convenient for the later stage to reform transform, can also guarantee the reliability of equipment simultaneously.

Compared with the transmission that the motor is directly connected, the differential output device is subjected to worm and gear transmission, when the motor is started or stopped or is changed in speed, the end output can become more flexible, the impact on a connecting mechanism can be reduced, the equipment is protected, the use limit of the equipment is increased, and the service life of the equipment is prolonged.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed herein are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A highly modular transmission, characterized in that it comprises a worm and a worm wheel, the worm and the worm wheel being intermeshed; the middle part of the worm wheel is provided with an output gear which is fixedly connected with the output rod in the axial direction; the side surface of the turbine is fixedly connected with a shaft sleeve, the shaft sleeve is connected with a transmission gear through a transmission bearing, and the transmission gear is meshed with the output gear; and one end of the worm is provided with a shaft connecting mechanism for connecting an output shaft of a motor to be speed-changed.

2. The highly modular transmission as claimed in claim 1, wherein the hub has a central shaft hole, the shaft hole has an output bearing, and the output shaft is movably connected to the hub through the output bearing.

3. The highly modular transmission device as claimed in claim 2, wherein the transmission gear is a duplicate gear, two output gears are axially arranged in the middle of the worm gear, and two ends of the transmission gear are respectively matched with the two output gears.

4. A highly modular gear shift unit according to any of claims 1-3, characterised in that the highly modular gear shift unit is externally provided with a protective casing.

5. The highly modular transmission as claimed in claim 4, wherein the bushing is provided with a limit bearing on the outside for limiting the highly modular transmission, and the highly modular transmission is mounted in the protective housing through the limit bearing.

6. A highly modular gear change as claimed in claim 5, wherein both ends of the worm are movably connected to the protective housing by bearings.