CN220203969U - Gear type air motor - Google Patents
Gear type air motor Download PDFInfo
- Publication number
- CN220203969U CN220203969U CN202321138771.8U CN202321138771U CN220203969U CN 220203969 U CN220203969 U CN 220203969U CN 202321138771 U CN202321138771 U CN 202321138771U CN 220203969 U CN220203969 U CN 220203969U
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- gear
- output shaft
- motor
- shell
- driving gear
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- 210000004907 gland Anatomy 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009423 ventilation 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
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model provides a gear type air motor, which comprises a shell, wherein a motor end cover is coaxially and detachably arranged on the right side of the shell, a driving gear is arranged on the left side of the upper part of the inside of the shell, a driven gear is arranged on the left side of the lower part of the inside of the shell, the driving gear and the driven gear are supported by bearings, the driving gear is meshed with the driven gear, the driving gear and the driven gear are symmetrically arranged on two sides of the axis of the shell, and an output gear coaxial with the driving gear is arranged at the right end of the driving gear; an output shaft is coaxially arranged in the motor end cover, the left end part of the output shaft extends into the motor end cover, an input gear is arranged at the end part of the output shaft, the input gear is meshed with an output gear on the driving gear, and an overload protection structure is arranged between the input gear and the output shaft. The utility model has stable integral operation and compact structure, can save occupied space and can adapt to more complex installation environments.
Description
Technical Field
The utility model relates to the field of gear motors, in particular to 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 is inconvenient to install due to the asymmetric structure of single-side output, and cannot meet the installation requirements under various working conditions. Meanwhile, 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 a gear type air motor.
In order to achieve the above-mentioned purpose, the present utility model provides a gear type air motor, comprising a housing, wherein a motor end cover is coaxially and detachably mounted on the right side of the housing, a driving gear is arranged on the left side of the upper part of the interior of the housing, a driven gear is arranged on the left side of the lower part of the interior of the housing, the driving gear and the driven gear are both supported by bearings, the driving gear is meshed with the driven gear, the driving gear and the driven gear are symmetrically arranged on two sides of the axis of the housing, and an output gear coaxial with the driving gear is arranged on the right end of the driving gear; an output shaft is coaxially arranged in the motor end cover, the left end part of the output shaft extends into the motor end cover, an input gear is arranged at the end part of the output shaft, the input gear is meshed with the output gear, and an overload protection structure is arranged between the input gear and the output shaft.
As a preferable arrangement of the present utility model, the overload protection structure includes a gland provided at one side of an end portion of the output shaft located inside the gear motor, through which a screw passes and is screwed with the end portion 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 arranged on the step, the outer ring of the rolling bearing is provided with the input gear, 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.
In a preferred embodiment of the present utility model, bearings for mounting the output shaft are coaxially provided on both front and rear end surfaces of the motor cover.
As a preferable arrangement of the present utility model, the number of disc springs is at least one.
As the preferable arrangement of the utility model, a cavity is arranged in the motor end cover, an air inlet is arranged on one side of the motor end cover, which is close to the shell, and the cavity is communicated with an air source through the air inlet; a brake disc is coaxially arranged in the cavity and close to the air inlet and is sleeved on the output shaft and is in sliding connection with the output shaft through a flat key; the brake disc is characterized by further comprising a piston, wherein the piston is sleeved on the output shaft, a spring is arranged on one side of the piston, the other side of the piston is in butt joint with one side of the brake disc, and a vent hole parallel to the axis is formed in the brake disc.
The beneficial effects of the utility model are as follows:
1. the utility model drives the driving gear and the driven gear to rotate through compressed air, thereby driving the input gear meshed with the output shaft to rotate, and finally driving the output shaft to rotate and output the rotating speed. Because of adopting symmetrical structural design, make output shaft be located casing intermediate position and carry out rotational speed output, compare in prior art, its overall shape rule can adapt to multiple complex installation environment.
2. 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.
3. 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.
4. According to the utility model, the brake device is arranged in the motor end cover, the gear motor is started, the air source charges high-pressure air into the cavity through the air inlet, the high-pressure air enters the pushing piston along the air vent to displace so as to compress the spring, the brake disc is separated from the piston, the brake device does not work, and the gear motor normally runs; when the gear motor is stopped, ventilation is stopped, the spring rebounds, the piston is pushed to be attached to the brake disc, and the brake disc is further pressed on the side wall of the inner cavity of the motor end cover, so that the braking function of the gear motor is realized.
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.
Example 3
Referring to fig. 1, as another embodiment of the present utility model, embodiment 3 contains all the technical features of embodiment 1, which is different from embodiment 1 in that:
a cavity 14 is arranged in the motor end cover 3, an air inlet (not shown in the figure) is arranged on one side of the motor end cover 3 close to the shell 1, and the cavity 14 is communicated with an air source through the air inlet; a brake disc 15 is coaxially arranged in the cavity 14 and close to the air inlet and is coaxial with the output shaft 6, and the brake disc 15 is sleeved on the output shaft 6 and is in sliding connection with the output shaft 6 through a flat key; the brake disc comprises an output shaft 6, a piston 16, a spring 17, a vent hole 18 and a brake disc 15, wherein the piston 16 is sleeved on the output shaft 6, one side of the piston is provided with the spring 17, the other side of the piston is in butt joint with one side of the brake disc 15, and the brake disc 15 is provided with the vent hole 18 parallel to the axis.
By adopting the technical scheme, when the gear motor is started, the air source charges high-pressure air into the cavity through the air inlet, the high-pressure air enters the pushing piston along the air vent to displace so as to compress the spring, the brake disc is separated from the piston, and meanwhile, the brake disc is pushed to move, at the moment, the brake device does not work, and the gear motor normally operates; when the gear motor is stopped, ventilation is stopped, the spring rebounds, the piston is pushed to be attached to the brake disc, and the brake disc is further pressed on the side wall of the inner cavity of the motor end cover, so that the braking function of the gear motor is realized.
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 (5)
1. The gear type air motor is characterized by comprising a shell, wherein a motor end cover is coaxially and detachably arranged on the right side of the shell, a driving gear is arranged on the left side of the upper part of the interior of the shell, a driven gear is arranged on the left side of the lower part of the interior of the shell, the driving gear and the driven gear are supported through bearings, the driving gear is meshed with the driven gear, the driving gear and the driven gear are symmetrically arranged on two sides of the axis of the shell, and an output gear coaxial with the driving gear is arranged at the right end of the driving gear; an output shaft is coaxially arranged in the motor end cover, the left end part of the output shaft extends into the motor end cover, an input gear is arranged at the end part of the output shaft, the input gear is meshed with the output gear, and an overload protection structure is arranged between the input gear and the output shaft.
2. A gear type air motor according to claim 1, wherein the overload protecting structure includes a gland provided on a side of an end portion of the output shaft located inside the gear motor, a screw passing through the gland and being screwed to the end portion 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 arranged on the step, the outer ring of the rolling bearing is provided with the input gear, 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.
3. A gear type air motor according to claim 1, wherein bearings for mounting said output shaft are coaxially provided at both front and rear end surfaces of said motor end cover, respectively.
4. A gear type air motor according to claim 2, wherein the number of disc springs is at least one.
5. The gear type air motor according to claim 1, wherein a cavity is provided in the motor end cover, an air inlet is provided at a side of the motor end cover close to the housing, and an air source is communicated with the cavity through the air inlet; a brake disc is coaxially arranged in the cavity and close to the air inlet and is sleeved on the output shaft and is in sliding connection with the output shaft through a flat key; the brake disc is characterized by further comprising a piston, wherein the piston is sleeved on the output shaft, a spring is arranged on one side of the piston, the other side of the piston is in butt joint with one side of the brake disc, and a vent hole parallel to the axis is formed in the brake disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321138771.8U CN220203969U (en) | 2023-05-12 | 2023-05-12 | Gear type air motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321138771.8U CN220203969U (en) | 2023-05-12 | 2023-05-12 | Gear type air motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220203969U true CN220203969U (en) | 2023-12-19 |
Family
ID=89155035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321138771.8U Active CN220203969U (en) | 2023-05-12 | 2023-05-12 | Gear type air motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220203969U (en) |
-
2023
- 2023-05-12 CN CN202321138771.8U patent/CN220203969U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |