CN202045388U - Improved impact electric drill - Google Patents
Improved impact electric drill Download PDFInfo
- Publication number
- CN202045388U CN202045388U CN2011200876559U CN201120087655U CN202045388U CN 202045388 U CN202045388 U CN 202045388U CN 2011200876559 U CN2011200876559 U CN 2011200876559U CN 201120087655 U CN201120087655 U CN 201120087655U CN 202045388 U CN202045388 U CN 202045388U
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- China
- Prior art keywords
- impact
- gear
- annular ring
- motor
- drill
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Abstract
The utility model aims at providing an improved impact electric drill, which can select whether to carry out impact rotation according to the actual use conditions. In addition, the outward leakage of lubricating oil is avoided in the work process. The improved impact electric drill provided by the utility model comprises a handle, a machine body and a drill clamp head, wherein a motor and a motor shaft driven by the motor are arranged inside the machine body, a heat radiator and an impact block are sequentially arranged on the output end of the motor shaft, a transmission gear is engaged with the tail end of the motor shaft, a first impact gear is arranged on the transmission gear, a second impact gear is arranged on the impact block, an output shaft is rotatablely connected onto the transmission gear, and the output shaft is provided with a knob. Compared with the prior art, the impact electric drill provided according to the utility model has the following advantages that the sealing structure is only formed through the gliding matching of two annular rings, in addition, the first annular ring is positioned inside the second annular ring, and the leakage of lubricating liquid is prevented.
Description
Technical field
The utility model relates to the electric impact drill of a kind of electric tool, particularly a kind of improvement.
Background technology
Electric impact drill is a kind of based on rotary cutting, has the beater mechanism that relies on operator's thrust production impulsive force concurrently, is used for the electric tool of holing on the materials such as brick, building block and lightweight wall.In the prior art, the structure of electric impact drill generally comprises handle, body and drill chuck.Wherein handle is provided with switch module: internal body is provided with: by the motor of switch module control, by motor-driven motor shaft, heat abstractor and the impact block of once mounting on the motor shaft output, the travelling gear that is meshed with the motor shaft end, be installed in first impact teeth on this travelling gear inner surface, second impact teeth that is installed on the impact block and can matches with first impact teeth, with the output shaft that travelling gear is rotationally connected, be located at the output shaft inboard and can control the axially movable impact knob of this output shaft; Drill chuck is installed in the end that output shaft exposes to body.When electric impact drill is worked, first impact teeth and second impact teeth play clutch action, can produce axial impulsive force for output shaft, yet because frequency of impact is too high, this operating position not only can produce localized hyperthermia, and the lubricating oil on it also is easy to be splashed on the off-position, not only caused the waste of lubricating oil, more seriously cause impact teeth to can not get good lubricating, therefore impact tooth annealing easily and be worn and reduce or do not produce bad phenomenon such as axial thrust, thereby make the security performance of electric impact drill reduce greatly, even damage whole electric impact drill.
The utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of electric impact drill of improvement is provided, and can select whether to impact rotation according to actual operating position.And avoid leaking of lubricating oil in the course of the work.
In order to reach described purpose, the electric impact drill of a kind of improvement that the utility model provides comprises handle, body, drill chuck, internal body is provided with motor, by motor-driven motor shaft, on the motor shaft output, heat abstractor and impact block are installed successively, the travelling gear that has been meshed with the motor shaft end is equipped with first and impacts gear on this travelling gear, be equipped with second and impact gear on impact block, travelling gear is rotatably connected to output shaft, and output shaft is provided with knob.
Preferably, drill chuck is installed in the end that output shaft exposes to body; First periphery of impacting gear is provided with first annular ring, and second periphery of impacting gear is provided with second annular ring that is slidingly matched with first annular ring, and first annular ring and second annular ring formation hermetically-sealed construction.
Preferably, the outer wall that second annular ring and second impacts gear cooperates, and and the inner face of first annular ring between be provided with one and compress spring.
Preferably, knob connects choosing dress lid that exposes to body and the impulse pin that stretches into impact block, and this impulse pin can rotate in impact block, and the bottom of impulse pin has a deep-slotted chip breaker, and a steel ball is housed in this deep-slotted chip breaker.
The electric impact drill of a kind of improvement that provides according to the utility model, prior art has following advantage relatively: aforesaid hermetically-sealed construction only is slidingly matched by two annular rings and forms, and first annular ring is positioned within second annular ring, prevents the leakage of lubricating fluid.Whether the rotation adjustment first impact gear and the second impact gear by knob meshes simultaneously, guarantees impacting and the conversion of non-impact conditions.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the electric impact drill overall structure schematic diagram of a kind of improvement of the utility model.
Fig. 2 is the sealed structural representation of the electric impact drill of a kind of improvement of the utility model.
The specific embodiment
As shown in Figure 1 and Figure 2, a kind of electric impact drill of improvement comprises handle 1, body 2, drill chuck 3, body 2 inside are provided with motor 4, by the motor shaft 5 of motor 4 drivings, on motor shaft 5 outputs, heat abstractor 6 and impact block 7 are installed successively, the travelling gear 8 that has been meshed with motor shaft 5 ends is equipped with first and impacts gear 9 on this travelling gear 8, be equipped with second and impact gear 10 on impact block 7, travelling gear 8 is rotatably connected to output shaft 11, and output shaft 11 is provided with knob 12.Drill chuck 3 is installed in the end that output shaft 11 exposes to body 2; The periphery that first periphery of impacting gear 9 is provided with first annular ring, 13, the second impact gears 10 is provided with second annular ring 14 that is slidingly matched with first annular ring 13, and first annular ring 13 and second annular ring, 14 formation hermetically-sealed constructions.The outer wall that second annular ring 14 and second impacts gear 10 cooperates, and and the inner face of first annular ring 13 between be provided with one and compress spring 15.Knob 12 connect the choosing dress that exposes to body 2 cover 121 with the impulse pin 122 that stretches into impact block 7, this impulse pin 122 can rotate in impact block 7, the bottom of impulse pin 122 has a deep-slotted chip breaker 123, and a steel ball 124 is housed in this deep-slotted chip breaker 123.
During work, impact function if desired, then knob 12 is rotated, make impulse pin 122 promote impact block 7, boost the steel ball 124 of dress in the deep-slotted chip breaker 123, the second impact gear, 10 engagements on the first impact gear 9 and the impact block 7 on the travelling gear 8 like this, output shaft 11 also can carry out axially reciprocal in rotation.When only needing to rotate, then with knob 12 backward rotation, steel ball 124 withstands output shaft 11 like this, makes on the moving gear 8 first to impact on gear 9 and the impact block 7 second and impact gear 10 and separates, carries out non-impact and processes.
The above only is a specific embodiment of the utility model, but technical characterictic of the present utility model is not limited thereto, any those skilled in the art is in field of the present utility model, and variation of being done or modification all are encompassed among the claim of the present utility model.
Claims (4)
1. the electric impact drill of an improvement, comprise handle (1), body (2), drill chuck (3), body (2) inside is provided with motor (4), motor shaft (5) by motor (4) driving, it is characterized in that: on motor shaft (5) output, heat abstractor (6) and impact block (7) are installed successively, travelling gear (8) has been meshed with motor shaft (5) end, be equipped with first on this travelling gear (8) and impact gear (9), be equipped with second and impact gear (10) on impact block (7), travelling gear (8) is rotatably connected to output shaft (11), and output shaft (11) is provided with knob (12).
2. the electric impact drill of a kind of improvement as claimed in claim 1, it is characterized in that: drill chuck (3) is installed in the end that output shaft (11) exposes to body (2); First periphery of impacting gear (9) is provided with first annular ring (13), second periphery of impacting gear (10) is provided with second annular ring (14) that is slidingly matched with first annular ring (13), and first annular ring (13) and second annular ring (14) formation hermetically-sealed construction.
3. the electric impact drill of a kind of improvement as claimed in claim 2 is characterized in that: second annular ring (14) cooperates with second outer wall that impacts gear (10), and and the inner face of first annular ring (13) between be provided with one and compress spring (15).
4. the electric impact drill of a kind of improvement as claimed in claim 1, it is characterized in that: knob (12) connects choosing dress lid (121) that exposes to body (2) and the impulse pin (122) that stretches into impact block (7), this impulse pin (122) can rotate in impact block (7), the bottom of impulse pin (122) has a deep-slotted chip breaker (123), and a steel ball (124) is housed in this deep-slotted chip breaker (123).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200876559U CN202045388U (en) | 2011-03-29 | 2011-03-29 | Improved impact electric drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200876559U CN202045388U (en) | 2011-03-29 | 2011-03-29 | Improved impact electric drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202045388U true CN202045388U (en) | 2011-11-23 |
Family
ID=44985712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200876559U Expired - Fee Related CN202045388U (en) | 2011-03-29 | 2011-03-29 | Improved impact electric drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202045388U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567500A (en) * | 2012-07-20 | 2014-02-12 | 博世电动工具（中国）有限公司 | Electric tool and casing thereof |
-
2011
- 2011-03-29 CN CN2011200876559U patent/CN202045388U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567500A (en) * | 2012-07-20 | 2014-02-12 | 博世电动工具（中国）有限公司 | Electric tool and casing thereof |
| CN103567500B (en) * | 2012-07-20 | 2018-07-20 | 博世电动工具（中国）有限公司 | Electric tool and its shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20140329 |