CN211966020U - Multifunctional electric hand drill - Google Patents
Multifunctional electric hand drill Download PDFInfo
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- CN211966020U CN211966020U CN201922100405.3U CN201922100405U CN211966020U CN 211966020 U CN211966020 U CN 211966020U CN 201922100405 U CN201922100405 U CN 201922100405U CN 211966020 U CN211966020 U CN 211966020U
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- hand drill
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- reduction gearbox
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Abstract
The utility model belongs to the technical field of electric tool, refer in particular to a multi-functional electric hand drill. The electric hand drill comprises an electric hand drill main body, wherein a main handle is arranged on one side of the electric hand drill main body, a driving switch is installed on the main handle, an auxiliary handle is arranged on the other side of the electric hand drill main body, and a drill chuck for fixing a drill bit is arranged at the front end of the electric hand drill; the front end of the drill chuck is provided with a detachable multifunctional conversion head, the multifunctional conversion head comprises a reduction gearbox, the reduction gearbox comprises an input shaft and an output shaft, a speed reduction assembly is arranged between the input shaft and the output shaft, and a connecting support is arranged on the reduction gearbox; the other end of the connecting support is fixed on the electric hand drill main body. The utility model relates to a multi-functional electric hand drill is through the multi-functional crossover head of front end installation in the electric hand drill main part for convert the high rotational speed of electric drill into low rotational speed, and increase the output torque, accomplish the function that some ordinary electric drills can not accomplish with this.
Description
Technical Field
The utility model belongs to the technical field of electric tool, refer in particular to a multi-functional electric hand drill.
Background
At present, in the process of manufacturing and maintaining hardware electromechanics, the problems of grinding, polishing, drilling and the like are frequently encountered, and the existing troweling machine and special machines such as various electric drills, drilling machines and the like have the advantages of relatively single function, high price, large volume and difficulty in carrying and are only suitable for factories with relatively high specialty. For small and medium sized production and repair entities, particularly for vast individual repairments, collective households are often not suitable. Wherein, the application of electric hand drill can be more extensive relatively, but the use amount like the smoothing machine can be less relatively, so only a small amount of crowds can go to purchase the smoothing machine specially and polish the wall, it is uneconomical practical, but the electric hand drill is again because the rotational speed is higher, can't directly install the mill at the electric drill front end and polish, cause easily splashing at the process of polishing, if reduce the rotational speed of electric hand drill, because it changes motor speed through changing the electric current size, unable increase torque, this also can lead to the mill to rotate powerless, push up on the wall, the dead condition of card often can appear, unable normal work.
Disclosure of Invention
The utility model aims at providing a simple structure can accomplish the electric hand drill that bores, grinds, throws, multiple functions such as stirring.
The purpose of the utility model is realized like this:
a multifunctional electric hand drill comprises an electric hand drill main body, wherein a main handle is arranged on one side of the electric hand drill main body, a driving switch is mounted on the main handle, an auxiliary handle is arranged on the other side of the electric hand drill main body, and a drill chuck for fixing a drill bit is arranged at the front end of the electric hand drill;
the front end of the drill chuck is provided with a detachable multifunctional conversion head, the multifunctional conversion head comprises a reduction gearbox, the reduction gearbox comprises an input shaft and an output shaft, a speed reduction assembly is arranged between the input shaft and the output shaft, and a connecting support is arranged on the reduction gearbox; the other end of the connecting support is fixed on the electric hand drill main body.
Furthermore, a handle is mounted at the rear end of the electric hand drill main body and is rotatably fixed at the rear end of the electric hand drill.
Furthermore, the speed reduction assembly is a planet wheel speed reduction group and comprises a gear ring, a sun wheel and a planet wheel arranged between the gear ring and the sun wheel, the sun wheel is connected with the input shaft, and the planet wheel is connected with the output shaft.
Furthermore, the reduction gearbox also comprises a reduction gearbox shell, wherein a mounting groove is formed in the reduction gearbox shell, a mounting part matched with the mounting groove is formed in the outer part of the gear ring, and the mounting part on the gear ring can be clamped into the mounting groove, so that the gear ring and the reduction gearbox shell are limited to rotate relatively.
Further, the output shaft comprises a planet wheel support, the planet wheel support is provided with a plurality of mounting openings, the planet wheel is mounted in the mounting openings, and the planet wheel can drive the planet wheel support to rotate through rotation.
Furthermore, the middle part of the planet wheel is provided with a positioning hole, the planet wheel support is provided with a positioning opening, a positioning pin penetrates through the positioning hole and the positioning opening, and the planet wheel is assembled on the planet wheel support through the positioning pin.
Furthermore, the front end of the output shaft is provided with a grinding disc, the middle part of the grinding disc is provided with a fixed buckling opening, and the grinding disc is fixed at the front end of the output shaft through the fixed opening.
Furthermore, the connecting support is provided with an adjusting hole, and the adjusting hole is shaped like a waist-shaped hole.
Furthermore, an extension support is formed outside the reduction gearbox, and one end of the connecting support is fixed on the extension support.
Furthermore, the other end of the connecting support is fixed on the extending support, and the fixing point of the connecting support is located between the auxiliary handle and the electric hand drill main body.
Compared with the prior art, the utility model outstanding and profitable technological effect is:
the utility model relates to a multi-functional electric hand drill is through the multi-functional crossover head of front end installation in the electric hand drill main part for convert the high rotational speed of electric drill into low rotational speed, and increase the output torque, accomplish the function that some ordinary electric drills can not accomplish with this. The multifunctional conversion head comprises a reduction gearbox, the reduction gearbox comprises an input shaft connected with the working head of the electric drill and an output shaft connected with other working parts such as a grinding disc or a stirring part, the effect that one electric drill completes multiple functions is achieved, cost is saved, efficiency is high, and multiple special machines do not need to be carried. The reduction gearbox is also provided with a connecting support, and the reduction gearbox shell is fixed on the electric hand drill main body through the connecting support, so that the relative rotation between the reduction gearbox shell and the electric hand drill main body is limited, and the maximum transmission ratio of the reduction assembly in the reduction gearbox is realized. The whole installation and the disassembly are very convenient, and the structure is simple and convenient and is not easy to damage.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is one of the structural schematic diagrams of the multifunctional conversion head.
Fig. 3 is a second schematic structural diagram of the multi-functional transducing head.
Fig. 4 is a front view of a deceleration assembly in the multi-functional transducing head.
Fig. 5 is a schematic structural diagram of a deceleration assembly in the multifunction transducing head.
Fig. 6 is a schematic diagram of the structure of the output shaft in the multi-function conversion head.
Fig. 7 is an exploded view of the deceleration assembly in the multi-functional conversion head.
Fig. 8 is a schematic view of the structure of the grinding disc.
The reference numerals in the figures denote the meanings:
1-a reduction gearbox; 2-an input shaft; 3-an output shaft; 4-a speed reduction assembly; 5-connecting a bracket; 6-gear ring; 7-a sun gear; 8-a planet wheel; 9-gearbox housing; 10-mounting grooves; 11-a mounting portion; 12-a planet wheel carrier; 13-mounting port;
15-positioning the opening; 16-a locating pin; 17-a grinding disc; 18-a fixed port; 19-a conditioning aperture; 20-extension of the scaffold; 21-electric hand drill body; 22-a main handle; 23-driving a switch; 24-an auxiliary handle; 25-a drill chuck; 26-multifunctional conversion head.
Detailed Description
The invention will be further described with reference to specific embodiments below:
a multifunctional electric hand drill comprises an electric hand drill main body 21, wherein a main handle 22 is arranged on one side of the electric hand drill main body 21, a driving switch 23 is installed on the main handle 22, an auxiliary handle 24 is arranged on the other side of the electric hand drill main body 21, and a drill chuck 25 for fixing a drill bit is arranged at the front end of the electric hand drill;
the front end of the drill chuck 25 is provided with a detachable multifunctional conversion head 26, the multifunctional conversion head 26 comprises a reduction gearbox 1, the reduction gearbox 1 comprises an input shaft 2 and an output shaft 3, a speed reduction assembly 4 is arranged between the input shaft 2 and the output shaft 3, and the reduction gearbox 1 is provided with a connecting support 5; the other end of the connecting bracket 5 is fixed on the electric hand drill main body 21.
The utility model relates to a multi-functional electric hand drill, through the multi-functional conversion head 26 of front end installation at electric hand drill main part 21 for convert the high rotational speed of electric drill into low rotational speed, and increase the output torque, accomplish the function that some ordinary electric drills can not accomplish with this. The multifunctional conversion head 26 comprises a reduction gearbox 1, wherein the reduction gearbox 1 comprises an input shaft 2 connected with the working head of the electric drill and an output shaft 3 connected with other working components such as a grinding disc 17 or a stirring piece, the effect that one electric drill completes multiple functions is achieved, the cost is saved, the efficiency is high, and multiple special machines do not need to be carried. The reduction gearbox 1 is further provided with a connecting support 5, and the reduction gearbox shell 9 is fixed on the electric hand drill main body 21 through the connecting support 5, so that relative rotation between the reduction gearbox shell 9 and the electric hand drill main body 21 is limited, and the reduction assembly 4 inside the reduction gearbox 1 is enabled to achieve the maximum transmission ratio. The whole installation and the disassembly are very convenient, and the structure is simple and convenient and is not easy to damage.
Preferably, a handle 27 is mounted on the rear end of the electric hand drill main body 21, and the handle 27 is rotatably fixed to the rear end of the electric hand drill.
Preferably, the speed reduction assembly 4 is a planetary gear 8 speed reduction group, and includes a ring gear 6, a sun gear 7 and a planetary gear 8 arranged therebetween, the sun gear 7 is connected to the input shaft 2, and the planetary gear 8 is connected to the output shaft.
The speed reduction assembly 4 is a planetary gear speed reduction group and mainly comprises a gear ring 6, a sun gear 7 and a planetary gear 8 arranged between the sun gear 7 and the gear ring 6, the sun gear 7 is connected to the input shaft 2, the planetary gear 8 is connected with the output shaft 3, the gear ring 6 is fixed on a reduction gearbox shell 9, the input shaft 2 drives the sun gear 7 to rotate, the sun gear 7 carries the planetary gear 8 meshed with the sun gear 7 to perform speed reduction movement, and the planetary gear 8 drives the output shaft 3 to rotate.
Preferably, the reduction gearbox 1 further comprises a reduction gearbox shell 9, a mounting groove 10 is formed in the reduction gearbox shell 9, a mounting part 11 matched with the mounting groove 10 is formed outside the gear ring 6, and the mounting part 11 on the gear ring 6 can be clamped into the mounting groove 10, so that the gear ring 6 and the reduction gearbox shell 9 are limited to rotate relatively.
Preferably, the output shaft 3 includes a planet wheel support 12, the planet wheel support 12 is provided with a plurality of mounting openings 13, the planet wheel 8 is mounted in the mounting opening 13, and the rotation of the planet wheel 8 can drive the planet wheel support 12 to rotate.
Preferably, a positioning hole is formed in the middle of the planet wheel 8, a positioning opening 15 is formed in the planet wheel support 12, a positioning pin 16 penetrates through the positioning hole and the positioning opening 15, and the planet wheel 8 is assembled on the planet wheel support 12 through the positioning pin 16.
The output shaft 3 comprises a planet wheel support 12 connected with a planet wheel 8, the planet wheel 8 is assembled on the planet wheel support 12, a plurality of mounting holes 13 used for mounting the planet wheel 8 are formed in the side edge of the planet wheel support 12, the middle of the planet wheel 8 and the planet wheel support 12 are respectively provided with a positioning hole and a positioning hole 15, and the planet wheel 8 is mounted on the planet wheel support 12 through a positioning pin 16. The planet wheels 8 can rotate about the positioning pins 16.
Preferably, the front end of the output shaft 3 is provided with a grinding disc 17, the middle part of the grinding disc 17 is provided with a fixed buckle opening, and the grinding disc 17 is fixed at the front end of the output shaft 3 through the fixed opening 18.
Preferably, the connecting bracket 5 is provided with an adjusting hole 19, and the adjusting hole 19 is shaped like a kidney-shaped hole.
Preferably, an extension bracket 20 is formed outside the reduction gearbox 1, and one end of the connecting bracket 5 is fixed on the extension bracket 20.
Preferably, the other end of the connecting bracket 5 is fixed on the extension bracket, and the fixing point of the connecting bracket 5 is located between the auxiliary handle 24 and the electric hand drill main body 21.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. A multifunctional electric hand drill is characterized in that: the electric hand drill comprises an electric hand drill main body, wherein a main handle is arranged on one side of the electric hand drill main body, a driving switch is installed on the main handle, an auxiliary handle is arranged on the other side of the electric hand drill main body, and a drill chuck for fixing a drill bit is arranged at the front end of the electric hand drill;
the front end of the drill chuck is provided with a detachable multifunctional conversion head, the multifunctional conversion head comprises a reduction gearbox, the reduction gearbox comprises an input shaft and an output shaft, a speed reduction assembly is arranged between the input shaft and the output shaft, and a connecting support is arranged on the reduction gearbox; the other end of the connecting support is fixed on the electric hand drill main body.
2. A multi-function electric hand drill according to claim 1 wherein: the electric hand drill is characterized in that a handle is mounted at the rear end of the electric hand drill main body and is rotatably fixed at the rear end of the electric hand drill.
3. A multi-function electric hand drill according to claim 2 wherein: the speed reduction assembly is a planet wheel speed reduction group and comprises a gear ring, a sun wheel and a planet wheel arranged between the gear ring and the sun wheel, the sun wheel is connected with the input shaft, and the planet wheel is connected with the output shaft.
4. A multi-function electric hand drill according to claim 3 wherein: the reduction gearbox further comprises a reduction gearbox shell, wherein a mounting groove is formed in the reduction gearbox shell, a mounting part matched with the mounting groove is formed in the outer portion of the gear ring, and the mounting part on the gear ring can be clamped into the mounting groove, so that the gear ring and the reduction gearbox shell are limited to rotate relatively.
5. A multi-function electric hand drill according to claim 3 wherein: the output shaft is provided with a planet wheel support, the planet wheel support is provided with a plurality of mounting openings, the planet wheel is mounted in the mounting openings, and the rotation of the planet wheel can drive the planet wheel support to rotate.
6. A multifunctional electric hand drill according to claim 5 wherein: the middle part of the planet wheel is provided with a positioning hole, the planet wheel support is provided with a positioning opening, a positioning pin penetrates through the positioning hole and the positioning opening, and the planet wheel is assembled on the planet wheel support through the positioning pin.
7. A multifunctional electric hand drill according to any one of claims 1 to 6 wherein: the front end of the output shaft is provided with a grinding disc, the middle part of the grinding disc is provided with a fixed opening, and the grinding disc is fixed at the front end of the output shaft through the fixed opening.
8. A multifunctional electric hand drill according to any one of claims 1 to 6 wherein: the connecting support is provided with an adjusting hole, and the adjusting hole is shaped like a waist-shaped hole.
9. A multifunctional electric hand drill according to any one of claims 1 to 6 wherein: an extension support is formed outside the reduction gearbox, and one end of the connecting support is fixed on the extension support.
10. A multi-function electric hand drill according to claim 9 wherein: the other end of the connecting support is fixed on the extending support, and the fixing point of the connecting support is located between the auxiliary handle and the electric hand drill main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922100405.3U CN211966020U (en) | 2019-11-29 | 2019-11-29 | Multifunctional electric hand drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922100405.3U CN211966020U (en) | 2019-11-29 | 2019-11-29 | Multifunctional electric hand drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211966020U true CN211966020U (en) | 2020-11-20 |
Family
ID=73354103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922100405.3U Active CN211966020U (en) | 2019-11-29 | 2019-11-29 | Multifunctional electric hand drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211966020U (en) |
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2019
- 2019-11-29 CN CN201922100405.3U patent/CN211966020U/en active Active
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