CN217814880U

CN217814880U - Planetary reduction gear

Info

Publication number: CN217814880U
Application number: CN202222057448.XU
Authority: CN
Inventors: 夏世红; 戴兵; 莫谷丰
Original assignee: Hunan Changjincheng Electric Appliance Co ltd
Current assignee: Hunan Changjincheng Electric Appliance Co ltd
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2022-11-15
Anticipated expiration: 2032-08-05

Abstract

The application discloses planetary reduction gear, including motor mounting bracket and gear box, motor mounting bracket's bottom fixed mounting has driving motor, driving motor's side surface is provided with motor housing, motor mounting bracket's side surface symmetry is provided with connects the journal stirrup. The utility model discloses a make motor mounting bracket and connection journal stirrup as an organic whole, avoided increasing in addition the installation journal stirrup, saved the material and be convenient for the installation again, the box has saved the screw of motor support with be connected box and support after making an organic whole with the motor, improve production efficiency, the cost is reduced, the rubber ring can prevent the resonance that produces when the motor operation, the five metals connection has improved the wearability, but increase of service life, central gear designs into the step form, the risk falls out when having avoided the central tooth assembly, the centre bore designs into "D" font, can bear bigger dynamics and make things convenient for the motor output shaft to pack into again, duplex planetary gear designs into two antithetical couplet two-stage gear, can effectively increase the gear ratio, increase motor output torsion.

Description

Planetary reduction gear

Technical Field

The application relates to the technical field of speed reducers, in particular to a planetary reduction gear.

Background

The planetary reducer is an industrial product with wide application, and can reduce the rotating speed of a motor and increase the output torque. The planetary reducer can be used as a matching part for industries such as hoisting, digging, transportation, building and the like, the working occasions of the servo motor and the reducer in the market are mostly that the motor and the precision planetary reducer are connected in a split mode, the integral size of the servo motor and the reducer is increased definitely, and under the condition that the requirement for the occupied space of equipment in various mechanical industries is smaller and smaller, the trend is to reduce the overall size of the servo motor or the planetary reducer.

The split connection still can occupy great equipment fixing space, and the complete machine precision can not be guaranteed, inconvenient installation and transportation, and then can influence processing time limit for a project and production efficiency, makes planetary reducer's manufacturing cost higher, because the speed reducer can produce vibrations when using, and it can uprise to connect the journal stirrup and pass through the bolted connection time and has appeared not hard up possibility of appearance for a long time.

Disclosure of Invention

The purpose of the application is to provide a planetary reduction gear which is convenient to produce, low in cost and convenient to install.

In order to achieve the above purpose, the technical scheme adopted by the application is as follows: planetary reduction gear, including motor mounting bracket and gear box, motor mounting bracket's bottom fixed mounting has driving motor, driving motor's side surface is provided with motor housing, motor mounting bracket's side surface symmetry is provided with connects the journal stirrup, the inside cover of connecting the journal stirrup is equipped with the rubber ring, motor mounting bracket's top and the inside swing joint that is located the gear box have gear chassis and gear upper bracket, gear chassis and gear upper bracket pass through fixing bolt fixed connection, the inside wall of gear box is provided with the ring gear, fixing bolt's side surface cover is equipped with duplex planetary gear, duplex planetary gear includes lower gear and last gear, driving motor's output fixedly connected with sun gear, sun gear is connected with the lower gear meshing, it is connected with the ring gear meshing to go up the gear.

Preferably, the method comprises the following steps: the motor mounting frame is fixedly connected with the gear box through a connecting bolt.

Preferably, the method comprises the following steps: the duplex planetary gears are positioned on the outer side of the central gear at equal intervals.

Preferably, the method comprises the following steps: the gear upper frame is connected with the gear box in a sliding mode, and the top of the central gear is movably connected with the bottom of the gear upper frame.

Preferably, the method comprises the following steps: and hardware is fixedly arranged at the top of the gear upper frame.

Compared with the prior art, the beneficial effect of this application lies in:

(1) The motor mounting frame and the connecting support lug are integrated, the additional increase of the mounting support lug is avoided, materials are saved, and the mounting is facilitated, the motor support and screws for connecting the motor support and the box body are saved after the box body and the motor are integrated, the production efficiency is improved, the cost is reduced, the rubber ring can prevent resonance generated during the operation of the motor, the wear resistance is improved through hardware connection, the service life is prolonged, the central gear is designed into a step shape, the risk of falling out during the assembly of the central gear is avoided, the central hole is designed into a D shape, the large force can be borne, the motor output shaft can be conveniently loaded, the duplex planetary gear is designed into a duplex two-stage gear, the gear ratio can be effectively increased, and the output torque force of the motor is increased.

Drawings

FIG. 1 is a perspective view of the planetary reduction gear;

FIG. 2 is a schematic view of a motor housing of the planetary reduction gear;

FIG. 3 is a schematic view of the structure of the gear upper frame of the planetary reduction gear;

FIG. 4 is a schematic view of the gear base of the planetary reduction gear;

FIG. 5 is a schematic view of the sun gear of the planetary reduction gear;

fig. 6 is a schematic view of the internal structure of the motor housing of the planetary reduction gear.

In the figure: 1. a motor mounting bracket; 11. connecting the support lug; 12. a rubber ring; 13. a connecting bolt; 2. a drive motor; 3. a motor housing; 4. a gear case; 41. an inner gear ring; 5. a gear chassis; 6. putting the gear on a rack; 7. a duplex planetary gear; 71. a lower gear; 72. an upper gear; 73. fixing the bolt; 8. a sun gear; 9. hardware.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

The planetary reduction gear as shown in fig. 1-6 comprises a motor mounting rack 1 and a gear box 4, a driving motor 2 is fixedly mounted at the bottom of the motor mounting rack 1, a motor shell 3 is arranged on the side surface of the driving motor 2, the motor mounting rack 1 and the driving motor 2 are integrated to save a motor bracket and screws for connecting the motor bracket with a box body and the bracket, the production efficiency is improved, the cost is reduced, connecting lugs 11 are symmetrically arranged on the side surface of the motor mounting rack 1, the motor mounting rack 1 and the connecting lugs 11 are integrated to avoid additional installation of the connecting lugs, the materials are saved, the installation is convenient, a rubber ring 12 is sleeved inside the connecting lugs 11, the rubber ring 12 can prevent resonance generated during the operation of the motor, the wear resistance is improved by hardware connection, the service life is prolonged, a gear bottom frame 5 and a gear upper frame 6 are movably connected at the top of the motor mounting rack 1 and inside the gear box 4, the gear chassis 5 is fixedly connected with the gear upper frame 6 through a fixing bolt 73, the inner side wall of the gear box 4 is provided with an inner gear ring 41, the side surface of the fixing bolt 73 is sleeved with a duplex planetary gear 7, the duplex planetary gear 7 comprises a lower gear 71 and an upper gear 72, the output end of the driving motor 2 is fixedly connected with a central gear 8, the bottom of the central gear 8 is provided with a central hole, the output shaft of the driving motor 2 is connected with the central gear 8 through the central hole, the central hole is designed into a D shape and can bear larger force and facilitate the loading of the motor output shaft, the top of the central gear 8 is provided with a cylindrical shape which is convenient to be movably connected with the bottom of the gear upper frame 6, a step is arranged at the cylindrical connection position of the gear of the central gear 8, the risk of falling out when the central gear is assembled is avoided, and the central gear 8 is meshed with the lower gear 71, the upper gear 72 is meshed with the inner gear ring 41, the driving motor 2 drives the central gear 8 to rotate, the central gear 8 is meshed with the lower gear 71 of the duplex planetary gear 7 to drive the duplex planetary gear 7 to rotate, and the meshing of the upper gear 72 of the duplex planetary gear and the inner gear ring 41 drives the gear upper frame 6 and the gear bottom frame 5 to rotate, so that the hardware 9 is driven to rotate, the gear ratio can be effectively increased, and the output torque of the motor is increased.

Motor mounting bracket 1 passes through connecting bolt 13 fixed connection with gear box 4, conveniently dismantles gear box 4 to overhaul gear box 4's inside.

The duplex planetary gears 7 are arranged on the outer side of the central gear 8 at equal intervals, so that the operation is more stable.

The gear upper frame 6 is connected with the gear box 4 in a sliding mode, and the top of the central gear 8 is movably connected with the bottom of the gear upper frame 6.

The top of the gear upper frame 6 is fixedly provided with a hardware 9 which is convenient to be connected with an external connecting shaft.

The working principle of the planetary reduction gear is as follows: the driving motor 2 drives the central gear 8 to rotate, the central gear 8 is meshed with the lower gear 71 of the duplex planetary gear 7 to drive the duplex planetary gear 7 to rotate, and the meshing of the upper gear 72 of the duplex planetary gear and the inner gear ring 41 drives the gear upper frame 6 and the gear bottom frame 5 to rotate, so that the hardware 9 is driven to rotate, the gear ratio can be effectively increased, and the motor output torque force is increased.

The foregoing has described the principles, principal features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and such changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims

1. The utility model provides a planetary reduction gear, includes motor mounting bracket and gear box, its characterized in that: the utility model discloses a motor mounting bracket, including motor mounting bracket, motor mounting bracket's bottom fixed mounting has driving motor, driving motor's side surface is provided with motor housing, motor mounting bracket's side surface symmetry is provided with the connection journal stirrup, the inside cover of connecting the journal stirrup is equipped with the rubber ring, motor mounting bracket's top and the inside swing joint that is located the gear box have gear chassis and gear upper bracket, gear chassis and gear upper bracket pass through fixing bolt fixed connection, the inside wall of gear box is provided with the ring gear, fixing bolt's side surface cover is equipped with duplex planetary gear, duplex planetary gear includes lower gear and upper gear, driving motor's output fixedly connected with sun gear, sun gear is connected with lower gear meshing, upper gear is connected with the ring gear meshing.

2. The planetary reduction gear according to claim 1, wherein: the motor mounting frame is fixedly connected with the gear box through a connecting bolt.

3. The planetary reduction gear according to claim 2, wherein: the duplex planetary gears are positioned on the outer side of the central gear at equal intervals.

4. A planetary reduction gear according to claim 3, wherein: the gear upper frame is connected with the gear box in a sliding mode, and the top of the central gear is movably connected with the bottom of the gear upper frame.

5. The planetary reduction gear according to claim 4, wherein: and hardware is fixedly arranged at the top of the gear upper frame.