CN213498979U - Driving mechanism of electric tool - Google Patents
Driving mechanism of electric tool Download PDFInfo
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- CN213498979U CN213498979U CN202022129724.XU CN202022129724U CN213498979U CN 213498979 U CN213498979 U CN 213498979U CN 202022129724 U CN202022129724 U CN 202022129724U CN 213498979 U CN213498979 U CN 213498979U
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- driving
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Abstract
The utility model discloses an electric tool's actuating mechanism, the speed reduction subassembly of being connected including motor element and with motor element, motor element include first casing, first casing in be equipped with driving motor, driving motor's drive shaft on be equipped with drive gear, the speed reduction subassembly including the second casing that can be connected with first casing, second casing internal fixedly connected with be located the interior ring gear in the drive gear outside, the second casing in still be equipped with and to rotate the seat, the rotation seat on be equipped with a plurality of be located between ring gear and the drive gear and can with interior ring gear and the drive gear simultaneously meshed planetary gear along the circumferencial direction, the rotation seat on be connected with can with this body coupling of electric tool's output shaft. The utility model discloses simple structure, it is small, light in weight.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an electric tool's actuating mechanism.
[ background of the invention ]
At present, electric tools are widely applied to production and life of people. Such as a power wrench, an electric chain saw, etc. The rotation speed of a driving motor of a traditional electric tool is generally high, and the driving motor needs to be decelerated through a speed reducing mechanism and finally output to an electric tool body. The traditional speed reducing mechanism of the electric tool generally adopts multi-stage gears for speed reduction transmission, so that the speed reducing mechanism is large in size and heavy, and a user can feel laboursome when operating the electric tool for a long time.
Therefore, the present invention is based on the above disadvantages.
[ Utility model ] content
The utility model aims at overcoming the defects of the prior art and providing a driving mechanism of an electric tool with simple structure, small volume and light weight.
The utility model discloses a realize through following technical scheme:
the utility model provides a drive mechanism of electric tool, includes motor element 1 and the speed reduction unit 2 who is connected with motor element 1, its characterized in that: motor element 1 include first casing 11, first casing 11 in be equipped with driving motor 12, driving motor 12's drive shaft 121 on be equipped with drive gear 13, speed reduction unit 2 including the second casing 21 that can be connected with first casing 11, second casing 21 in fixedly connected with be located the interior ring gear 22 in the drive gear 13 outside, second casing 21 in still be equipped with and rotate seat 23 that can rotate, rotation seat 23 on be equipped with a plurality of planetary gear 24 that are located between ring gear 22 and the drive gear 13 and can mesh simultaneously with interior ring gear 22 and drive gear 13 along the circumferencial direction, rotation seat 23 on be connected with can with this body coupling of electric tool's output shaft 25.
The drive mechanism for an electric power tool as described above is characterized in that: the rotating seat 23 is provided with a non-circular hole 26, one end of the output shaft 25 is clamped with the non-circular hole 26, and the other end of the output shaft extends out of the second shell 21.
The drive mechanism for an electric power tool as described above is characterized in that: the rotating seat 23 is provided with a shaft shoulder 27, the shaft shoulder 27 is provided with a first bearing 28, and the middle part of the output shaft 25 is provided with a second bearing 29.
The drive mechanism for an electric power tool as described above is characterized in that: the driving motor 12 comprises a motor housing 122, a stator assembly and a rotor assembly are arranged in the motor housing 122, and ventilation holes 123 are formed in the front end and the rear end of the motor housing 122 and are communicated with each other.
The drive mechanism for an electric power tool as described above is characterized in that: a filter screen is arranged in the rear end of the motor shell 122 and at the position of the vent hole 123.
The drive mechanism for an electric power tool as described above is characterized in that: the driving shaft 121 is provided with fan blades 124, and the fan blades 124 include a sheet-shaped body 1241 connected with the driving shaft 121, and ribs 1242 arranged on the body 1241 in a circumferential direction.
The drive mechanism for an electric power tool as described above is characterized in that: the motor housing 122 is provided with a plurality of heat dissipating ribs 125 on the outer side thereof, and the first housing 11 is provided with a plurality of heat dissipating holes 14.
The drive mechanism for an electric power tool as described above is characterized in that: the planetary gears 24 are 5 in number and are arrayed on the rotating base 23 along the circumferential direction.
Compared with the prior art, the utility model discloses there is following advantage: the utility model discloses a be provided with drive gear in drive motor's the drive shaft, and be provided with interior ring gear and rotation seat in the second casing, rotate and be provided with planetary gear on the seat, drive gear sets up between planetary gear and interior ring gear and mesh simultaneously with planetary gear and interior ring gear, consequently, when drive motor rotates, drive gear drives planetary gear and rotates, and then makes to rotate the seat and rotate, reaches the purpose from the output shaft output power to the electric tool body of being connected with rotating the seat. Whole simple structure is compact, and it is effectual to slow down, and light in weight can alleviate the burden when user uses electric tool after installing on electric tool, and is more laborsaving.
[ description of the drawings ]
FIG. 1 is a perspective view of the present invention;
fig. 2 is one of exploded views of the present invention;
fig. 3 is a second exploded view of the present invention;
FIG. 4 is one of the perspective views of the components of the present invention;
fig. 5 is a second perspective view of the components of the present invention.
[ detailed description ] embodiments
The invention will be further described with reference to the accompanying drawings:
as shown in fig. 1 to 5, a driving mechanism of an electric tool includes a motor assembly 1 and a speed reduction assembly 2 connected to the motor assembly 1, the motor assembly 1 includes a first housing 11, a driving motor 12 is disposed in the first housing 11, a driving shaft 121 of the driving motor 12 is provided with a driving gear 13, the speed reduction assembly 2 includes a second housing 21 capable of being connected to the first housing 11, an inner gear ring 22 disposed outside the driving gear 13 is fixedly connected to the second housing 21, a rotatable rotating base 23 is further disposed in the second housing 21, a plurality of planetary gears 24 disposed between the inner gear ring 22 and the driving gear 13 and capable of meshing with the inner gear ring 22 and the driving gear 13 simultaneously are disposed on the rotating base 23 along a circumferential direction, 5 planetary gears 24 are disposed and arrayed on the rotating base 23 along the circumferential direction, the rotating seat 23 is connected with an output shaft 25 which can be connected with the electric tool body. When the driving motor 12 rotates, the driving gear 13 drives the planetary gear 24 to rotate, and the planetary gear 24 rotates and is meshed with the inner gear ring 22 to revolve, so that the rotating seat 23 rotates and is decelerated, and the purpose of outputting power from the output shaft 25 to the electric tool body is achieved. Whole simple structure is compact, and it is effectual to slow down, and light in weight can alleviate the burden when user uses electric tool after installing on electric tool, and is more laborsaving.
As shown in fig. 3, the rotating base 23 is provided with a non-circular hole 26, one end of the output shaft 25 is connected with the non-circular hole 26 in a clamping manner, and the other end extends out of the second housing 21. The output shaft 25 can be directly inserted into the noncircular hole 26 to complete the connection with the rotating seat 23, and the assembly is very convenient and fast.
As shown in fig. 2 and 3, a shaft shoulder 27 is disposed on the rotating seat 23, a first bearing 28 is disposed on the shaft shoulder 27, and a second bearing 29 is disposed in the middle of the output shaft 25.
As shown in fig. 2, the driving motor 12 includes a motor housing 122, a stator assembly and a rotor assembly are disposed in the motor housing 122, and ventilation holes 123 are disposed at front and rear ends of the motor housing 122. The ventilation holes 123 are formed in the front end and the rear end of the motor shell 122, so that the temperature rise of the driving motor 12 can be effectively reduced, and the service life of the driving motor 12 is prolonged.
A filter screen (not shown) is disposed in the rear end of the motor housing 122 and at the position of the vent hole 123. The arrangement of the filter screen can effectively prevent the impurity dust from entering the interior of the driving motor 12.
As shown in fig. 2 and fig. 3, the driving shaft 121 is provided with blades 124, and the blades 124 include a sheet-shaped body 1241 connected to the driving shaft 121, and ribs 1242 arranged on the body 1241 in a circumferential direction. Therefore, when the driving motor 12 rotates, the driving shaft 121 drives the fan blade 124 to rotate, and the air flow flows rapidly in the rotating process of the fan blade 124, so that the temperature rise of the driving motor 12 is reduced, a good heat dissipation effect is achieved, and the service life of the driving motor 12 is prolonged.
As shown in fig. 2 and 3, a plurality of heat dissipation protruding strips 125 are disposed on the outer side of the motor housing 122, and a plurality of heat dissipation holes 14 are disposed on the first housing 11, so as to effectively dissipate heat and prolong the service life of the driving motor 12.
Claims (8)
1. The utility model provides a drive mechanism of electric tool, includes motor element (1) and speed reduction unit (2) of being connected with motor element (1), its characterized in that: the motor component (1) comprises a first shell (11), a driving motor (12) is arranged in the first shell (11), a driving gear (13) is arranged on a driving shaft (121) of the driving motor (12), the speed reducing assembly (2) comprises a second shell (21) which can be connected with the first shell (11), an inner gear ring (22) positioned at the outer side of the driving gear (13) is fixedly connected in the second shell (21), a rotatable rotating seat (23) is also arranged in the second shell (21), a plurality of planet gears (24) which are positioned between the inner gear ring (22) and the driving gear (13) and can be simultaneously meshed with the inner gear ring (22) and the driving gear (13) are arranged on the rotating seat (23) along the circumferential direction, the rotating seat (23) is connected with an output shaft (25) which can be connected with the electric tool body.
2. The drive mechanism for a power tool according to claim 1, wherein: the rotating seat (23) is provided with a non-circular hole (26), one end of the output shaft (25) is connected with the non-circular hole (26) in a clamping mode, and the other end of the output shaft extends out of the second shell (21).
3. The drive mechanism for a power tool according to claim 1, wherein: the rotary seat (23) is provided with a shaft shoulder (27), the shaft shoulder (27) is provided with a first bearing (28), and the middle part of the output shaft (25) is provided with a second bearing (29).
4. The drive mechanism for a power tool according to claim 1, wherein: the driving motor (12) comprises a motor shell (122), a stator assembly and a rotor assembly are arranged in the motor shell (122), and communicated vent holes (123) are formed in the front end and the rear end of the motor shell (122).
5. The drive mechanism for a power tool according to claim 4, wherein: and a filter screen is arranged in the rear end of the motor shell (122) and at the position of the vent hole (123).
6. The drive mechanism for a power tool according to claim 5, wherein: the fan blade (124) is arranged on the driving shaft (121), and the fan blade (124) comprises a sheet-shaped body (1241) connected with the driving shaft (121) and convex ribs (1242) arranged on the body (1241) in an array along the circumferential direction.
7. The drive mechanism for a power tool according to claim 5, wherein: the motor shell (122) is provided with a plurality of heat dissipation convex strips (125) on the outer side, and the first shell (11) is provided with a plurality of heat dissipation holes (14).
8. The drive mechanism for a power tool according to claim 1, wherein: the number of the planetary gears (24) is 5, and the planetary gears are arrayed on the rotating seat (23) along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022129724.XU CN213498979U (en) | 2020-09-24 | 2020-09-24 | Driving mechanism of electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022129724.XU CN213498979U (en) | 2020-09-24 | 2020-09-24 | Driving mechanism of electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213498979U true CN213498979U (en) | 2021-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022129724.XU Active CN213498979U (en) | 2020-09-24 | 2020-09-24 | Driving mechanism of electric tool |
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| Country | Link |
|---|---|
| CN (1) | CN213498979U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013509A (en) * | 2022-06-17 | 2022-09-06 | 宿迁市泰宇电器有限公司 | Multifunctional electric tool speed change gear box |
-
2020
- 2020-09-24 CN CN202022129724.XU patent/CN213498979U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013509A (en) * | 2022-06-17 | 2022-09-06 | 宿迁市泰宇电器有限公司 | Multifunctional electric tool speed change gear box |
| CN115013509B (en) * | 2022-06-17 | 2023-12-01 | 宿迁市泰宇电器有限公司 | Multifunctional electric tool speed change gear box |
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