CN220203970U - Overload protection structure of gear type air motor - Google Patents
Overload protection structure of gear type air motor Download PDFInfo
- Publication number
- CN220203970U CN220203970U CN202321138772.2U CN202321138772U CN220203970U CN 220203970 U CN220203970 U CN 220203970U CN 202321138772 U CN202321138772 U CN 202321138772U CN 220203970 U CN220203970 U CN 220203970U
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- gear
- output shaft
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- gland
- boss
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- 210000004907 gland Anatomy 0.000 claims abstract description 22
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model provides an overload protection structure of a gear type air motor, wherein a gland is arranged on one side of the end part of an output shaft of the gear motor, which is positioned in the gear motor, and a screw penetrates through the gland and is in threaded connection with the end part of the output shaft; one side of the output shaft, which is positioned in the gear motor, is provided with a step, a group of disc springs are arranged at the position of the output shaft between the gland and the step, and one end of each disc spring is abutted with the gland; a rolling bearing is sleeved between the disc spring and the step, an input gear is arranged on the outer ring of the rolling bearing, and the other end of the disc spring integrally presses the input gear on the step of the output shaft; the end face of one side of the input gear, which is close to the step, is provided with a boss, a groove is formed on the output shaft corresponding to the boss, and the boss is embedded in the groove. The maximum output torque is limited by the pressing force of the disc spring, so that the overload protection effect is achieved, and the service life of the gear motor can be effectively prolonged.
Description
Technical Field
The utility model relates to the field of gear motors, in particular to an overload protection structure of a gear type air motor.
Background
A conventional gear motor, such as a high-rotation gear motor provided in chinese patent CN 211623612U, includes a housing, a motor driving gear, and an end cover; a group of gearbox end covers are detachably mounted on the right side of the shell, a group of transverse motor driving gears are arranged on the left side of the lower portion of the inside of the shell, the upper side and the lower side of each motor driving gear and each motor driven gear are fixedly supported through a supporting shaft sleeve, the motor driven gears are directly meshed with the upper portions of the motor driving gears, and transmission gears coaxial with the motor driving gears are fixedly mounted at the right ends of the motor driving gears.
The traditional gear motor lacks an overload protection structure, and when overload is caused due to the fact that the torque range is exceeded, the damage of the gear motor is easy to cause, and the service life of a gear is seriously influenced.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides an overload protection structure of a gear type air motor.
In order to achieve the above purpose, the present utility model provides an overload protection structure of a gear type air motor, wherein a gland is arranged on one side of an end part of an output shaft of the gear motor, which is positioned in the gear motor, and a screw penetrates through the gland and is in threaded connection with the end part of the output shaft; one side of the output shaft, which is positioned in the gear motor, is provided with a step, a group of disc springs are arranged at the position of the output shaft between the gland and the step, and one end of each disc spring is abutted with the gland; a rolling bearing is sleeved between the disc spring and the step, an input gear is arranged on the outer ring of the rolling bearing, and the other end of the disc spring integrally presses the input gear on the step of the output shaft; the end face of one side of the input gear, which is close to the step, is provided with a boss, a groove is formed on the output shaft corresponding to the boss, and the boss is embedded in the groove.
As a preferable arrangement of the present utility model, the input gear is driven to rotate by a driving gear of a gear motor; the driving gear is coaxially connected with an output gear, and the output gear is meshed with the input gear.
As a preferable arrangement of the present utility model, the number of disc springs is at least one.
The beneficial effects of the utility model are as follows:
1. when the load is in the load range, the disc spring compresses the input gear, so that the boss is embedded in the groove, and the output shaft is driven to rotate when the input gear rotates; when overload, surpass maximum torque value, the boss slides in the recess, boss and step terminal surface contact promote dish spring compression, at this moment, can appear skidding the phenomenon, and input gear can't continue to drive output shaft and rotate continuously, has overload protection's effect, can effectively improve gear motor's life.
2. The overload protection structure limits the maximum output torque by adjusting the pretightening degree of the disc spring. Through adjusting the screw of output shaft tip, drive gland position to be kept away from or be close to the position removal of output shaft: when the gland is close to the output shaft, the disc spring is further compressed, the pressing force is increased, so that the maximum output torque is increased, and otherwise, when the gland is far away from the output shaft, the maximum output torque is reduced. The utility model can select proper maximum output torque according to actual working conditions, has wider application and high applicability.
Drawings
Fig. 1 is a schematic view of a gear motor according to the present utility model.
Fig. 2 is a schematic view of the structure of the boss and the groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Example 1
Referring to fig. 1, the motor comprises a housing 1, a driving gear 2 and a motor end cover 3; a motor end cover 3 is coaxially and detachably arranged on the right side of the shell 1, a driving gear 2 is arranged on the left side of the upper part of the inside of the shell 1, a driven gear 4 is arranged on the left side of the lower part of the inside, the driving gear 2 and the driven gear 4 are fixedly supported through bearings, the driving gear 2 is meshed with the driven gear 4, and the driving gear 2 and the driven gear 4 are symmetrically arranged on two sides of the axis of the shell 1; the right end of the driving gear 2 is fixedly provided with an output gear 5 coaxial with the driving gear; an output shaft 6 is coaxially installed in the motor end cover 3, the left end of the output shaft 6 extends into the motor end cover 3, an input gear 7 is arranged at the end of the output shaft, and the input gear 7 is meshed with the output gear 5.
In this embodiment, further, bearings for mounting the output shaft 6 are coaxially disposed on the front and rear end surfaces of the motor end cover 3, and the output shaft 6 is driven by a gear to rotate.
In the embodiment, the driving gear 2 is driven to rotate by the starting motor, so that the driven gear 4 is driven to synchronously rotate; the driving gear 2 drives the output gear 5 to synchronously rotate, so as to drive the input gear 7 meshed with the output gear 5 to rotate, and finally, the output shaft 6 is driven to rotate to output the rotating speed.
In this embodiment, because of adopting symmetrical structural design, make output shaft be located the casing intermediate position and carry out rotational speed output, compare in prior art, its overall shape rule can adapt to multiple complex installation environment.
Example 2
Referring to fig. 1 to 2, as another embodiment of the present utility model, embodiment 2 contains all the technical features of embodiment 1, which is different from embodiment 1 in that:
in this gear motor, an overload protection structure provided by the present utility model is provided, specifically: a gland 8 is arranged on one side of the end part of the output shaft 6 of the gear motor, which is positioned in the gear motor, and a screw 9 penetrates through the gland 8 and is in threaded connection with the end part of the output shaft 6; a step is arranged on one side of the output shaft 6, which is positioned on the gear motor, a group of disc springs 10 are arranged at the position of the output shaft between the gland 8 and the step, and one end of each disc spring 10 is abutted with the gland 8; a rolling bearing 11 is arranged between the disc spring 10 and the step, the input gear 7 is arranged on the outer ring of the rolling bearing 11, and the other end of the disc spring 10 integrally presses the gear on the step of the output shaft 6; a boss 12 is arranged on the end face of one side of the input gear 7, which is close to the step, a groove 13 is arranged on the output shaft 6 corresponding to the boss 12, and the boss 12 is embedded in the groove 13.
As a preferred arrangement of the present utility model, the number of disc springs 10 is at least one.
The overload protection structure limits the maximum output torque by adjusting the pretightening degree of the disc spring. Through adjusting the screw of output shaft tip, drive gland position to be kept away from or be close to the position removal of output shaft: when the gland is close to the output shaft, the disc spring is further compressed, the pressing force is increased, so that the maximum output torque is increased, and otherwise, when the gland is far away from the output shaft, the maximum output torque is reduced. The utility model can select proper maximum output torque according to actual working conditions, has wider application and high applicability, when the load is in a range, the disc spring compresses the input gear, so that the boss is embedded in the groove, and the output shaft is driven to rotate when the input gear rotates; when overload, surpass maximum torque value, the boss slides in the recess, boss and step terminal surface contact promote dish spring compression, at this moment, can appear skidding the phenomenon, and input gear can't continue to drive output shaft and rotate continuously, has overload protection's effect, can effectively improve gear motor's life.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the utility model and form different embodiments. For example, in the claims below, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Claims (3)
1. The overload protection structure of the gear type air motor is characterized in that a gland is arranged on one side of the end part of an output shaft of the gear motor, which is positioned in the gear motor, and a screw penetrates through the gland and is in threaded connection with the end part of the output shaft; one side of the output shaft, which is positioned in the gear motor, is provided with a step, a group of disc springs are arranged at the position of the output shaft between the gland and the step, and one end of each disc spring is abutted with the gland; a rolling bearing is sleeved between the disc spring and the step, an input gear is arranged on the outer ring of the rolling bearing, and the other end of the disc spring integrally presses the input gear on the step of the output shaft; the end face of one side of the input gear, which is close to the step, is provided with a boss, a groove is formed on the output shaft corresponding to the boss, and the boss is embedded in the groove.
2. The overload protecting structure of a gear type air motor according to claim 1, wherein the input gear is driven to rotate by a driving gear of the gear motor; the driving gear is coaxially connected with an output gear, and the output gear is meshed with the input gear.
3. The overload protecting structure of a gear type air motor according to claim 1, wherein the number of disc springs is at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321138772.2U CN220203970U (en) | 2023-05-12 | 2023-05-12 | Overload protection structure of gear type air motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321138772.2U CN220203970U (en) | 2023-05-12 | 2023-05-12 | Overload protection structure of gear type air motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220203970U true CN220203970U (en) | 2023-12-19 |
Family
ID=89147335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321138772.2U Active CN220203970U (en) | 2023-05-12 | 2023-05-12 | Overload protection structure of gear type air motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220203970U (en) |
-
2023
- 2023-05-12 CN CN202321138772.2U patent/CN220203970U/en active Active
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