CN201922074U - Alternating-current to direct-current conversion electric drill - Google Patents
Alternating-current to direct-current conversion electric drill Download PDFInfo
- Publication number
- CN201922074U CN201922074U CN2011200231224U CN201120023122U CN201922074U CN 201922074 U CN201922074 U CN 201922074U CN 2011200231224 U CN2011200231224 U CN 2011200231224U CN 201120023122 U CN201120023122 U CN 201120023122U CN 201922074 U CN201922074 U CN 201922074U
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- electric drill
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Abstract
An alternating-current to direct-current conversion electric drill comprises a shell of the electric drill, a motor and an output shaft. The motor is mounted in the shell, the output shaft is arranged at the front end of the shell, a drill chuck is mounted at the front end of the output shaft, a gear case located at the front end of the motor is arranged in the shell, an inner gear is mounted at an output end of the gear case, a torsion ring is sleeved at the front end of the shell, a threaded ring is screwed in the torsion ring, the front end surface of the inner gear is a fluctuant trip stop surface, a steel ball which is abutted to the trip stop surface is embedded in the shell, a press plate is arranged on the front side of the steel ball, and a compression spring is supported between the press plate and the threaded ring. The alternating-current to direct-current conversion electric drill can convert alternating-current to direct-current, not only reduces manufacturing cost, but also can realize long-time continuous operation, has the advantages of adjustable output torsion, rotation speed and positive and negative rotation and the like, and is applicable to more working places.
Description
Technical field
The utility model relates to a kind of electric hand tool, a kind of specifically electric drill that changes direct current that exchanges.
Background technology
Existing electric drill comprises interchange electric drill and D.C. electric drill, exchanges electric drill basic structure and comprises alternating current generator and several change-speed gearing, this electric drill, operation is clumsy, noise is very big, and its output speed height, generally changes 2800, can only carry out work by high rotating speed, the scope of application is quite limited to.And if hold at work tight inadequately, make our operator injured easily.Though and the DC charging electric drill has flexible operation, advantage easy to carry because the finite capacity of battery, generally can only continuous firing half an hour, if work long hours then can only be, relatively more inconvenient by changing reserve battery.Patent Office of the People's Republic of China is disclosed October 3 calendar year 2001, the patent No. be " ZL00240300.5's " " DC charging electric portable drill ", it includes bodice, the rotation tailstock, power brick, wherein bodice is connected with the rotation tailstock, the rotation tailstock is connected by horizontal prefabricated card-inserting device with power brick, between described rotation tailstock and the power brick owing to adopted the structure that is connected by horizontal prefabricated card-inserting device, therefore, it not only can guarantee the firm installation of energy between them, be difficult for loose or dislocation, and can reduce contact resistance between power brick conductive clip and the power brick insert-connecting plate, prolong the service life of battery.Though this electric drill can prolong the service life of battery, the time of its continuous firing is still limited.
The utility model content
The purpose of this utility model is at the defective of above-mentioned prior art and deficiency, is the electric drill that people provide the long-time continuous firing of a kind of energy, operation is light, cost is low, rotating speed, interchange that torsion is adjustable change direct current.
Technical solution adopted in the utility model is for achieving the above object: the housing that D.C. electric drill comprises electric drill is changeed in this interchange, be installed on motor in the housing and the output shaft that is arranged at the housing front end, front end at output shaft is equipped with drill chuck, bottom at housing is provided with power line, this power line passes through to link to each other with motor behind the interior switch of housing, be provided with the gear-box that is positioned at the motor front end in the described housing, at the gear-box output internal gear is installed, rear end at output shaft is installed with travelling gear, this travelling gear is positioned at internal gear, between travelling gear and internal gear, be provided with planetary gear, described housing front end sleeve is equipped with the torsion ring, in the torsion ring, be installed with the fillet of screw, the front end face of described internal gear is the trip stop face that height rises and falls, in housing, be embedded with the steel ball that offsets with the trip stop face, the front side of steel ball is provided with pressing plate, is supported with the compression spring between the pressing plate and the fillet of screw.
Described gear-box is a change gear box, and housing is provided with the high to low gear toggle that links to each other with gear-box.
The rectifying circuit plate is installed between described power line and the motor, and wherein power line links to each other with the input of rectifying circuit plate, and motor links to each other with the output of rectifying circuit plate by behind the switch.
The output of described rectifying circuit plate and motor between two-direction switch is installed, housing is provided with the piece of falling the forwards that links to each other with two-direction switch.
The utility model can be delivered stream and be direct current, not only reduced the manufacturing cost of electric drill, and electric drill also can carry out long-time continuous firing, and the high to low gear toggle can be selected the output speed of gear-box, can regulate its outputting torsion by the torsion ring, makes it be applicable to the more work occasion, when drill bit is stuck, also can the drill bit backward rotation be extracted drill bit, prevent that drill bit from breaking by pressing the piece of falling the forwards.Has advantage simple in structure, that continuous working period long, operation is light, cost is low.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the utility model torsion ring place structure enlarged drawing.
The specific embodiment
As shown in Figure 1 and Figure 2, the utility model is that D.C. electric drill is changeed in a kind of interchange, it comprise electric drill housing 1, be installed on motor 2 in the housing 1 and the output shaft 6 that is arranged at housing 1 front end, front end at output shaft 6 is equipped with drill chuck 7, drives output shaft 6 by motor 2 and just can drive drill chuck 7 rotations.Be provided with power line 12 in the bottom of housing 1, this power line 12 links to each other with motor 2 by 10 backs of the switch in the housing 1, and housing 1 is provided with the trigger 9 that offsets with switch 10, and cocking 9 can make switch 10 open, and makes motor 2 energisings.Between described power line 12 and the motor 2 rectifying circuit plate 11 is installed, wherein power line 12 links to each other with the input of rectifying circuit plate 11, motor 2 links to each other with the output of rectifying circuit plate 11 by switch 10 backs, rectifying circuit plate 11 can change into alternating current direct current output, as long as therefore select direct current generator for use.The output of described rectifying circuit plate 11 and motor 2 between two-direction switch is installed, housing 1 is provided with the piece of falling the forwards 8 that links to each other with two-direction switch, pressing the piece of falling the forwards 8 can make two-direction switch positive and negative terminal contact exchange, thereby control motor 2 rotatings, particularly when drill bit is stuck, drill bit can be extracted by counter-rotating, prevent that drill bit from breaking.Be provided with the gear-box 4 that is positioned at motor 2 front ends in the described housing 1, this gear-box 4 is a change gear box, and housing 1 is provided with the high to low gear toggle 3 that links to each other with gear-box 4, can select the output speed of gear-box 4 by high to low gear toggle 3.At gear-box 4 outputs internal gear 18 is installed, be installed with travelling gear 17 in the rear end of output shaft 6, this travelling gear 17 is positioned at internal gear 18, is provided with planetary gear 13 between travelling gear 17 and internal gear 18, and the rotation of internal gear 18 can drive output shaft 6 rotations.Described housing 1 front end sleeve is equipped with torsion ring 5, in torsion ring 5, be installed with the fillet of screw 15, the front end face of described internal gear 18 is the trip stop face that height rises and falls, in housing 1, be embedded with the steel ball 14 that offsets with the trip stop face, the front side of steel ball 14 is provided with pressing plate 19, is supported with compression spring 16 between the pressing plate 19 and the fillet of screw 15.By rotating torsion ring 5 fillet of screw 15 is moved forward and backward, thereby regulate the pressure between steel ball 14 and the internal gear 18 trip stop faces.When the fillet of screw 15 was mobile backward, compression spring 16 was compressed once more, and the pressure between steel ball 14 and the internal gear 18 trip stop faces increases, the steel ball 14 trip stop face that is difficult to jump over, as long as drill chuck 7 is subjected to very little resistance, output shaft 6 and internal gear 18 are stopped operating, its outputting torsion is little.When the fillet of screw 15 moves forward, 16 elongations of compression spring, the pressure between steel ball 14 and the internal gear 18 trip stop faces reduces, steel ball 14 is easy to the trip stop face of just jumping over, even drill chuck 7 is subjected to very big resistance, also be difficult to make output shaft 6 and internal gear 18 to stop operating, its outputting torsion is big.
Claims (4)
1. one kind exchanges the commentaries on classics D.C. electric drill, it comprises the housing (1) of electric drill, be installed on motor (2) in the housing (1) and the output shaft (6) that is arranged at housing (1) front end, front end at output shaft (6) is equipped with drill chuck (7), be provided with power line (12) in the bottom of housing, this power line (12) links to each other with motor (2) by the back of the switch (10) in the housing (1), be provided with the gear-box (4) that is positioned at motor (2) front end in the described housing (1), at gear-box (4) output internal gear (18) is installed, be installed with travelling gear (17) in the rear end of output shaft (6), this travelling gear (17) is positioned at internal gear (18), between travelling gear (17) and internal gear (18), be provided with planetary gear (13), it is characterized in that described housing (1) front end sleeve is equipped with torsion ring (5), in torsion ring (5), be installed with the fillet of screw (15), the front end face of described internal gear (18) is the trip stop face that height rises and falls, in housing (1), be embedded with the steel ball (14) that offsets with the trip stop face, the front side of steel ball (14) is provided with pressing plate (19), is supported with compression spring (16) between the pressing plate (19) and the fillet of screw (15).
2. D.C. electric drill is changeed in interchange according to claim 1, it is characterized in that described gear-box (4) is a change gear box, and housing (1) is provided with the high to low gear toggle (3) that links to each other with gear-box (4).
3. D.C. electric drill is changeed in interchange according to claim 1 and 2, it is characterized in that being equipped with between described power line and the motor rectifying circuit plate (11), wherein power line (12) links to each other with the input of rectifying circuit plate (11), and motor (2) links to each other with the output of rectifying circuit plate (11) by switch (10) back.
4. D.C. electric drill is changeed in interchange according to claim 3, it is characterized in that described rectifying circuit plate (1) output and motor (2) between two-direction switch is installed, housing (1) is provided with the piece of falling the forwards (8) that links to each other with two-direction switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200231224U CN201922074U (en) | 2011-01-25 | 2011-01-25 | Alternating-current to direct-current conversion electric drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200231224U CN201922074U (en) | 2011-01-25 | 2011-01-25 | Alternating-current to direct-current conversion electric drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201922074U true CN201922074U (en) | 2011-08-10 |
Family
ID=44425943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200231224U Expired - Fee Related CN201922074U (en) | 2011-01-25 | 2011-01-25 | Alternating-current to direct-current conversion electric drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201922074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114953207A (en) * | 2022-06-08 | 2022-08-30 | 永康市一顺工具有限公司 | High-stability lithium electric drill |
-
2011
- 2011-01-25 CN CN2011200231224U patent/CN201922074U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114953207A (en) * | 2022-06-08 | 2022-08-30 | 永康市一顺工具有限公司 | High-stability lithium electric drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20160125 |
|
| EXPY | Termination of patent right or utility model |