CN212297444U

CN212297444U - Small-sized high-torque direct-current type rotary driver

Info

Publication number: CN212297444U
Application number: CN202020396255.5U
Authority: CN
Inventors: 赵一杰; 田学峰
Original assignee: Stabilus Jiangsu Co Ltd
Current assignee: Stabilus Jiangsu Co Ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2021-01-05
Anticipated expiration: 2030-03-25

Abstract

The utility model belongs to the technical field of the driver and specifically relates to small-size high moment of torsion straight-flow rotary actuator. The driver comprises a shell, a motor mechanism, a gear box, a worm and a bevel gear shaft, wherein the motor mechanism is fixed in the shell, the worm and the bevel gear shaft are both rotatably connected in the shell, the worm is meshed with the bevel gear shaft, an output shaft of the motor mechanism is connected in the gear box, and an output shaft of the gear box is fixed on the worm. The utility model discloses a through DC motor as the main drive, carry out the second grade through gear box and worm and slow down and increase the moment of torsion, increased the range of application of driven moment of torsion and rotational speed, improved the practicality greatly. And the utility model discloses embedded in fixed plastic housing of holistic transmission structure, the volume is light and handy, safe and reliable.

Description

Small-sized high-torque direct-current type rotary driver

Technical Field

The utility model belongs to the technical field of the driver and specifically relates to small-size high moment of torsion straight-flow rotary actuator.

Background

At present, the rotary drive is mainly applied to an alternating current motor and a speed reducer in industry, and the application is very wide. The traditional driver has the advantages of large transmission ratio, large torque, high bearing capacity and the like, and is compact in mechanical structure, simple and easy to install and high in practicability. In recent years, with the development of industry and the emergence of new demands, dc motor type rotary drives have come to be widely used as independent products in low-speed, low-torque, and low-precision transmission places such as logistics conveying devices, service automation equipment, and the like. However, the structure of the device is similar to that of an alternating current type rotary driver, and although the device is compact in structure, light in size, small in size and high in efficiency, the safety and reliability cannot be guaranteed when the device is applied to non-industrial places. In addition, because of the performance limitation of the dc motor, the rotating speed and torque cannot be applied to most applications, and the use conditions are harsh, the dc rotary driver cannot be widely popularized so far.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of current driver poor stability, the utility model provides a small-size high moment of torsion straight-flow rotary actuator.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a small-size high moment of torsion straight-flow rotary actuator, includes casing, motor mechanism, gear box, worm and skewed tooth shaft, be fixed with motor mechanism in the casing, the worm all rotates with the skewed tooth shaft and connects in the casing, and worm and skewed tooth shaft mesh mutually, and motor mechanism's output shaft is connected in the gear box, and the output shaft of gear box is fixed on the worm.

According to the utility model discloses a further embodiment, further include motor mechanism comprises lid and PCB board behind direct current motor, coupling gasket, the motor, and direct current motor's tail end is fixed with lid, PCB board behind coupling gasket, the motor, and direct current motor's output shaft is connected with the gear box through outer cogwheel.

According to the utility model discloses a further embodiment, further include the gear box comprises box, planetary gear and pinion shaft, installs planetary gear in the box, and pinion shaft swivelling joint is on the box, and the pinion shaft links to each other with planetary gear.

According to the utility model discloses a further embodiment, further include the bevel gear axle comprises helical gear and output shaft, is fixed with the helical gear on the output shaft, and the helical gear meshes with the worm mutually, and the output shaft rotates to be connected on the casing.

According to the utility model discloses a further embodiment, further include the output shaft passes through self-aligning bearing and rotates to be connected on the casing.

According to another embodiment of the present invention, further comprising the worm rotatably connected to the housing through a ball bearing.

According to another embodiment of the present invention, further comprising the worm is made of copper.

According to another embodiment of the present invention, it further comprises that the material of the housing is plastic.

The beneficial effects of the utility model are that, this utility model carries out second grade speed reduction and increase the moment of torsion through gear box and worm as main drive, has increased the range of application of driven moment of torsion and rotational speed, has improved the practicality greatly. And the utility model discloses embedded in fixed plastic housing of holistic transmission structure, the volume is light and handy, safe and reliable.

Drawings

The present invention will be further explained with reference to the drawings and examples.

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

fig. 2 is a schematic structural diagram of the motor mechanism of the present invention;

FIG. 3 is a schematic structural view of the gear box of the present invention;

fig. 4 is a schematic structural view of the bevel gear shaft of the present invention;

in the figure, 1, a shell, 2, a motor mechanism, 3, a gear box, 4, a worm, 5, a bevel gear shaft, 6, a self-aligning bearing, 7, a ball bearing, 21, a direct current motor, 22, a coupling gasket, 23, a motor rear cover, 24, a PCB (printed circuit board), 31, a box, 32, a planetary gear, 33, a pinion shaft, 51, a bevel gear and 52 output shafts are arranged.

Detailed Description

As fig. 1 is the utility model discloses a structural schematic diagram, fig. 2 is the utility model discloses a structural schematic diagram of motor mechanism, fig. 3 is the utility model discloses a structural schematic diagram of gear box, fig. 4 is the utility model discloses a structural schematic diagram of skewed tooth shaft, a small-size high moment of torsion straight-flow rotary actuator, including casing 1, motor mechanism 2, gear box 3, worm 4 and skewed tooth shaft 5, casing 1 internal fixation has motor mechanism 2, and worm 4 all rotates with skewed tooth shaft 5 and connects in casing 1, and worm 4 meshes with skewed tooth shaft 5 mutually, and motor mechanism 2's output shaft is in gear box 3, and gear box 3's output shaft is fixed on worm 4. The motor mechanism 2 is composed of a direct current motor 21, a coupling gasket 22, a motor rear cover 23 and a PCB 24, the coupling gasket 22, the motor rear cover 23 and the PCB 24 are fixed at the tail end of the direct current motor 21, and an output shaft of the direct current motor 21 is connected with the gear box 3 through an externally-embedded gear. The gear box 3 is composed of a box body 31, planetary gears 32 and a pinion shaft 33, the planetary gears 32 are installed in the box body 31, the pinion shaft 33 is rotatably connected to the box body 31, and the pinion shaft 33 is connected with the planetary gears 32. The bevel gear shaft 5 consists of a bevel gear 51 and an output shaft 52, the bevel gear 51 is fixed on the output shaft 52, the bevel gear 51 is meshed with the worm 4, and the output shaft 52 is rotatably connected to the shell 1. The output shaft 52 is rotatably connected to the housing 1 via the self-aligning bearing 6. The worm 4 is rotatably connected to the housing 1 by means of a ball bearing 7. The worm 4 is made of copper. The shell 1 is made of plastic.

As shown in the attached

drawings

1, 2, 3 and 4, the shell 1 is a plastic injection molding cavity structure, the upper part and the lower part of the shell are connected through screws, the internal cavity structure of the shell is designed according to the shapes and the sizes of various internal parts, and a cavity of the shell 1 is matched with the internal direct current motor 21 and the box body 31, so that the whole transmission structure is embedded in a fixed plastic housing, and the plastic injection molding shell is light in size, safe and reliable. The second stage gears of the planetary gears 32 are connected to a pinion shaft 33. The worm 4 is copper structure, and it cooperatees with the steel worm wheel, reduces noise and wearing and tearing. The helical gear 51 has an involute gear structure.

The utility model discloses an inside transmission theory of operation does, and direct current motor 21 receives the signal of the control unit, carries out high-speed rotation, begins the transmission moment of torsion to give the control unit through hall sensor on the PCB board 24, form closed-loop control to the signal feedback. The torque of the direct current motor 21 is transmitted to the gear box 3 through a pinion externally embedded on the output shaft of the motor, the two-stage planetary gear 32 structure inside the gear box 3 performs the rotating motion of reducing the rotating speed of the motor and amplifying the torque of the motor, the pinion shaft 33 transmits the rotating speed and the torque to the worm 4, the worm 4 performs the second speed reduction and torque increase, and transmits the rotating speed and the torque which are suitable for application to the rotating equipment connected with the worm 4 through the bevel gear shaft 5, so that the mechanical motion of the whole system is realized.

The utility model discloses an wholly use the theory of operation does, fixes with mechanical system through the hookup hole on the casing 1, and direct current motor 21 is terminal to be connected with control system through the cable conductor, and output shaft 52 links with motion through the shaft coupling. The control signal is sent out by the control system and is transmitted to the motor combination unit of the rotary driver, and the rotary driver works and drives the whole mechanical system to move by the output shaft.

Claims

1. The utility model provides a small-size high moment of torsion straight-flow rotary actuator, characterized by, includes casing (1), motor mechanism (2), gear box (3), worm (4) and skewed gear axle (5), casing (1) internal fixation has motor mechanism (2), and worm (4) and skewed gear axle (5) are all rotated and are connected in casing (1), and worm (4) mesh with skewed gear axle (5), and the output shaft of motor mechanism (2) is connected in gear box (3), and the output shaft of gear box (3) is fixed on worm (4).

2. The small-sized high-torque direct-current rotary driver according to claim 1, wherein the motor mechanism (2) is composed of a direct-current motor (21), a coupling gasket (22), a motor rear cover (23) and a PCB (24), the coupling gasket (22), the motor rear cover (23) and the PCB (24) are fixed at the tail end of the direct-current motor (21), and the output shaft of the direct-current motor (21) is connected with the gear box (3) through an externally embedded gear.

3. The small-sized high-torque direct-current rotary actuator according to claim 1, wherein the gear case (3) is composed of a case (31), planetary gears (32) and a pinion shaft (33), the planetary gears (32) are installed in the case (31), the pinion shaft (33) is rotatably connected to the case (31), and the pinion shaft (33) is connected to the planetary gears (32).

4. The small-sized high-torque direct current type rotary driver according to claim 1, wherein the helical gear shaft (5) is composed of a helical gear (51) and an output shaft (52), the helical gear (51) is fixed on the output shaft (52), the helical gear (51) is meshed with the worm (4), and the output shaft (52) is rotatably connected to the housing (1).

5. The compact high-torque direct-current rotary drive according to claim 4, characterized in that the output shaft (52) is rotationally connected to the housing (1) by means of a self-aligning bearing (6).

6. The compact, high-torque, direct-flow rotary drive according to claim 1, characterized in that the worm (4) is rotatably connected to the housing (1) by means of ball bearings (7).

7. The compact high torque straight-through rotary drive according to claim 1, characterized in that the worm (4) is made of copper.

8. The compact high torque dc rotary drive according to claim 1, wherein the housing (1) is made of plastic.