CN211880246U

CN211880246U - Hollow rotary actuator

Info

Publication number: CN211880246U
Application number: CN202020546812.7U
Authority: CN
Inventors: 刘尚柏; 黄求索; 邓青云
Original assignee: Guangdong Saini Intelligent Equipment Technology Co ltd
Current assignee: Guangdong Saini Intelligent Equipment Technology Co ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-11-06
Anticipated expiration: 2030-04-14

Abstract

The application relates to the technical field of hollow rotary platforms, in particular to a hollow rotary actuator, which comprises a hollow box body, wherein an output shaft is rotatably connected in the box body, one side of the box body is connected with a motor, a transmission assembly is connected between the motor and the output shaft, and the transmission assembly is arranged in the box body; the transmission assembly comprises a gear shaft coaxially connected to an output shaft of the motor, and a first bevel gear is integrally formed on the gear shaft; the power transmission device further comprises a second bevel gear which is rotatably connected inside the box body and is arranged on the output shaft, and the first bevel gear is meshed with the second bevel gear. The application has the advantages of smaller and more compact structure and convenience in installation.

Description

Hollow rotary actuator

Technical Field

The present application relates to the field of hollow rotary platforms, and more particularly, it relates to a hollow rotary actuator.

Background

The hollow rotary actuator is used for various rotary motion occasions and can replace a DD motor and a cam divider. The rotary mechanism integrates high working efficiency, high precision, high rigidity and high cost performance, and is a revolutionary product in the rotary mechanism. Balance is obtained between the two, the repeated positioning precision is +/-5 sec, the motor is easy to prepare and stable in bearing, and the motor can be matched with a servo motor or a stepping motor to perform any angle division.

The existing hollow rotary platform is internally provided with a meshed gear and a motor for driving the meshed gears to rotate, wherein the output shaft of the motor is provided with the gear for meshing and driving other gears.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies of the prior art, it is an object of the present application to provide a hollow rotary actuator having the advantages of a smaller and more compact structure and easy installation.

The technical purpose of the application is realized by the following technical scheme: a hollow rotary actuator comprises a hollow box body, wherein an output shaft is rotatably connected in the box body, one side of the box body is connected with a motor, a transmission assembly is connected between the motor and the output shaft, and the transmission assembly is arranged in the box body;

the transmission assembly comprises a gear shaft coaxially connected to an output shaft of the motor, and a first bevel gear is integrally formed on the gear shaft; the power transmission device further comprises a second bevel gear which is rotatably connected inside the box body and is arranged on the output shaft, and the first bevel gear is meshed with the second bevel gear.

Preferably, the output shaft is a hollow shaft.

Preferably, the motor is 28 stepping motors.

Preferably, a motor flange is installed between one end of an output shaft of the motor and the box body, and the gear shaft is rotatably connected into the motor flange.

Preferably, the box body is provided with an end cover, and the end cover is arranged at one end of the output shaft far away from the motor.

To sum up, the beneficial effect that this application has: when the hollow rotary actuator works, the motor drives the gear shaft to rotate, and power is transmitted to the output shaft through the first bevel gear and the second bevel gear; because first bevel gear integrated into one piece is on the gear shaft, compare among the prior art, the gear of assembly on the gear shaft, very big reduction the reference circle radius of this gear to make the drive ratio of first bevel gear and second bevel gear bigger, make this cavity rotary actuator's structure more small and exquisite compactness, and be convenient for install in other equipment, improved cavity rotary actuator's practicality and application range.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

fig. 2 is an exploded view of an embodiment of the present application.

Reference numerals: 1. a box body; 2. an output shaft; 3. a motor; 4. a transmission assembly; 41. a gear shaft; 411. A first bevel gear; 42. a second bevel gear; 5. a motor flange; 6. an end cap; 7. a deep groove ball bearing; 8. a gasket; 9. and adjusting the nut.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

A hollow rotary actuator, see fig. 1 and fig. 2, comprises a hollow box body 1, an output shaft 2 is rotatably connected in the box body 1, a motor 3 is connected to one side of the box body 1, a transmission assembly 4 is connected between the motor 3 and the output shaft 2, and the transmission assembly 4 is installed in the box body 1;

the transmission assembly 4 comprises a gear shaft 41 coaxially connected to the output shaft 2 of the motor 3, and a first bevel gear 411 is integrally formed on the gear shaft 41; and the device also comprises a second bevel gear 42 which is rotatably connected inside the box body 1 and is arranged on the output shaft 2, and the first bevel gear 411 is meshed with the second bevel gear 42.

When the hollow rotary actuator works, the motor 3 drives the gear shaft 41 to rotate, and power is transmitted to the output shaft 2 through the first bevel gear 411 and the second bevel gear 42; because first bevel gear 411 integrated into one piece is on gear shaft 41, compare among the prior art, the gear of assembly on gear shaft 41, very big reduction the reference circle radius of this gear to make the drive ratio of first bevel gear 411 and second bevel gear 42 bigger, make the structure of this cavity rotary actuator more small and exquisite compactness, and be convenient for install in other equipment, improved the practicality and the application range of cavity rotary actuator.

Specifically, the output shaft 2 is a hollow shaft. The hollow shaft is arranged to facilitate the assembly of the cable in the hollow shaft by workers, so that the assembly space is further saved, and the cable arrangement is more convenient and neat.

Specifically, the motor 3 is a 28-step motor.

Specifically, a motor flange 5 is installed between one end of the output shaft 2 of the motor 3 and the box body 1, and the gear shaft 41 is rotatably connected in the motor flange 5.

Specifically, the box body 1 is provided with an end cover 6, and the end cover 6 is arranged at one end of the output shaft 2 far away from the motor 3.

In the present embodiment, the hollow rotary actuator uses the deep groove ball bearing 7 for the rotation of the gear shaft 41 and the output shaft 2, and a washer 8 and an adjusting nut 9 are further installed between the gear shaft 41 and the housing 1.

The above-mentioned embodiments are merely illustrative and not restrictive, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but only protected by the patent laws within the scope of the claims of the present application.

Claims

1. A hollow rotary actuator is characterized in that: the device comprises a hollow box body, wherein an output shaft is rotatably connected in the box body, one side of the box body is connected with a motor, a transmission assembly is connected between the motor and the output shaft, and the transmission assembly is arranged in the box body;

2. A hollow rotary actuator as defined in claim 1, wherein: the output shaft is a hollow shaft.

3. A hollow rotary actuator as defined in claim 1, wherein: the motor is 28 stepping motors.

4. A hollow rotary actuator as defined in claim 1, wherein: a motor flange is installed between one end of an output shaft of the motor and the box body, and the gear shaft is rotatably connected into the motor flange.

5. A hollow rotary actuator as defined in claim 1, wherein: the end cover is installed to the box, the end cover is installed in the one end that the motor was kept away from to the output shaft.