CN201162817Y - Charging type electric drill and gearbox of screw driver - Google Patents
Charging type electric drill and gearbox of screw driver Download PDFInfo
- Publication number
- CN201162817Y CN201162817Y CNU2008200845578U CN200820084557U CN201162817Y CN 201162817 Y CN201162817 Y CN 201162817Y CN U2008200845578 U CNU2008200845578 U CN U2008200845578U CN 200820084557 U CN200820084557 U CN 200820084557U CN 201162817 Y CN201162817 Y CN 201162817Y
- Authority
- CN
- China
- Prior art keywords
- self
- locking
- main shaft
- gearbox
- planet carrier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
Abstract
The utility model relates to a charging typed gearbox for an electric drill and a screwdriver, which comprises a gearbox housing (1), a gear ring (2), a main shaft (3), a shaft sleeve (4), a planet carrier (5), a self-locking movable block (6), a self-locking stationary block (7) and a plurality of self-locking pins (8) forming clearance fit with the self-locking movable block (6); wherein, the fit between the self-locking movable block (6) and the main shaft (3) is an interference fit ; the self-locking stationary block (7) is fixed on the inner wall of the gearbox housing (1); the boss (9) of the planet carrier (5) is inserted between the self-locking movable block (6) and the self-locking stationary block (7); the inner surface of the boss (9) of the planet carrier (5) is provided with a boss (11) which is matched with a groove (10) of the self-locking movable block (6); the self-locking pins (8) are arranged between a circular arced surface (12) of the self-locking movable block (6) and the self-locking stationary block (7). The gearbox can avoid the idling motion of the main shaft when the battery is in low power or out of power, thus changing the electrical tool into a manual tool when in use.
Description
Technical field
The utility model relates to a kind of gear-box, specifically is a kind of gear-box that is used for particularly rechargeable electric drill of electric tool and screwdriver set.
Background technique
Particularly rechargeable electric drill of prior art electric tool and screwdriver set generally comprise chargeable cell, motor, gear-box and chuck; Planet carrier with chuck main shaft interference fit is arranged in the described gear-box; Be typically provided with the gear assembly that a group or more plays the gearing down effect between described planet carrier and the motor rotary shaft; Described gear assembly is positioned at gear-box and meshes simultaneously with planet carrier, motor main shaft.Particularly rechargeable electric drill of the electric tool of said structure and screwdriver set generally all are to be powered to motor by chargeable cell, and the output of described motor drives chuck and rotates after gear-box slows down.
The chargeable cell of particularly rechargeable electric drill of prior art electric tool and screwdriver set has specified electric weight, in using for a long time, particularly in the working environment that can not in time charge to chargeable cell in high-altitude or field etc., chargeable cell can cause that electric weight is not enough because of the continuous consumption of electric weight or use up, this moment, operator wished that rechargeable electric drill and screwdriver set can be used as hand-operated tools and use, and finished the workload under the specific environment.But, because the rechargeable electric drill of prior art and screwdriver set are serving as that hand-operated tools uses during application of force rotation, planet carrier and gear assembly rotate in the main shaft meeting driven gear case of chuck, thereby motor rotary shaft also is rotated, thereby cause the phenomenon of chuck, thereby make rechargeable electric drill and screwdriver set can not influence operator's proper functioning as the hand-operated tools use in original place idle running.
The model utility content
Technical problem to be solved in the utility model is, overcome above the deficiencies in the prior art, a kind of gear-box that is used for particularly rechargeable electric drill of electric tool and screwdriver set is provided, not enough or can avoid the idle running of chuck main shaft when using up at electric quantity of rechargeable battery, use thereby can serve as hand-operated tools.
For solving the problems of the technologies described above, the rechargeable electric drill that the utility model provides and the gear-box of screwdriver set comprise gearbox-case, gear ring, main shaft, axle sleeve and planet carrier, and described main shaft is force-fitted in the gearbox-case by axle sleeve; It also comprises the self-locking motion block, from clamping block and a plurality of self-lock pins of matching with self-locking motion block gap, described self-locking motion block and main shaft interference fit, describedly be fixed on the gearbox-case inwall from clamping block, the projection of described planet carrier is inserted into the self-locking motion block respectively and between the inwall of clamping block, the internal surface of described planet carrier projection has a projection that matches with the groove of self-locking motion block, and described self-lock pin is placed on the arc-shaped surface of self-locking motion block and between clamping block.
After adopting above structure, the gear-box of rechargeable electric drill of the utility model and screwdriver set compared with prior art has the following advantages:
Self-locking motion block in the utility model, from clamping block, self-lock pin, what form between planet carrier and the main shaft is a buckle structure, that is to say, not enough or use up and when motor is shut down when electric quantity of rechargeable battery, the self-locking motion block, constitute buckle structure from clamping block and self-lock pin, therefore force in main shaft and when making its rotation the operator, it is main shaft and planet carrier that this rotary torsion can't pass to motor rotary shaft by planet carrier and gear assembly, there is not relative movement between gear assembly and the motor rotary shaft, thereby effectively avoid the generation of main shaft idle running phenomenon, make the utility model possess the function of manual use.
As improvement, it also comprises jump ring, pad and one group of steel ball, described jump ring is stuck on the axle sleeve by steel ball and pad, and socket-connect with main shaft, described pad is placed between steel ball and the axle sleeve, it is smooth more, flexible that this steel ball structure makes axle sleeve get with main axis rotation, and this jump ring structure makes axle sleeve and gearbox-case press fit get tightr.
Description of drawings
Fig. 1 is the axial sectional view of the gear-box of rechargeable electric drill of the utility model and screwdriver set.
Fig. 2 is the explosive view of the gear-box of rechargeable electric drill of the utility model and screwdriver set.
Fig. 3 is the structure for amplifying schematic representation of the planet carrier in the gear-box of rechargeable electric drill of the utility model and screwdriver set.
Fig. 4 is the planet carrier and assembling schematic representation from clamping block in the gear-box of rechargeable electric drill of the utility model and screwdriver set.
Fig. 5 be in the gear-box of rechargeable electric drill of the utility model and screwdriver set the self-locking motion block, from the assembling schematic representation of clamping block and self-lock pin.
Wherein, 1, gearbox-case; 2, gear ring; 3, main shaft; 4, axle sleeve; 5, planet carrier; 6, self-locking motion block; 7, from clamping block; 8, self-lock pin; 9, projection; 10, groove; 11, projection; 12, arc-shaped surface; 13, jump ring; 14, pad; 15, steel ball.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As Fig. 1, Fig. 2, Fig. 4 and shown in Figure 5, same as the prior art, the gear-box of rechargeable electric drill of the utility model and screwdriver set comprises gearbox-case 1, gear ring 2, main shaft 3, axle sleeve 4 and planet carrier 5.Described main shaft 3 is force-fitted in the gearbox-case 1 by axle sleeve 4.Unlike the prior art be that the utility model electric tool gear-box also comprises self-locking motion block 6, from clamping block 7 and a plurality of self-lock pins 8 of matching with self-locking motion block 6 gaps.Described self-locking motion block 6 and main shaft 3 interference fit.Describedly be fixed on gearbox-case 1 inwall from clamping block 7.The projection 9 of described planet carrier 5 is inserted into self-locking motion block 6 respectively and between the inwall of clamping block 7.The internal surface of described planet carrier 5 projections 9 has a projection 11 that matches with the groove 10 of self-locking motion block 6.Described self-lock pin 8 is placed on the arc-shaped surface 12 of self-locking motion block 6 and between clamping block 7.
As depicted in figs. 1 and 2, the gear-box of rechargeable electric drill of the utility model and screwdriver set, it also comprises jump ring 13, pad 14 and one group of steel ball 15.Described jump ring 13 is stuck on the axle sleeve 4 by steel ball 15 and pad 14, and socket-connects with main shaft 3, and described pad 14 is placed between steel ball 15 and the axle sleeve 4.
The working principle of the gear-box of rechargeable electric drill of the utility model and screwdriver set is, under the situation of electric quantity of rechargeable battery abundance, the output shaft of motor can be through the deceleration transmission of gear assembly and planet carrier, thereby drive main spindle is rotated work, the projection of planet carrier is blocked the groove of self-locking motion block, and planet carrier drive self-locking this moment motion block rotates together; And it is not enough or use up and when motor is shut down when electric quantity of rechargeable battery, the self-locking motion block, from clamping block, self-lock pin, what form between planet carrier and the main shaft is a buckle structure, that is to say, not enough or use up and when motor is shut down when electric quantity of rechargeable battery, the self-locking motion block, constitute buckle structure from clamping block and self-lock pin, therefore force in main shaft and when making its rotation the operator, it is main shaft and planet carrier that this rotary torsion can't pass to motor rotary shaft by planet carrier and gear assembly, there is not relative movement between gear assembly and the motor rotary shaft, thereby effectively avoid the generation of main shaft idle running phenomenon, make the utility model possess the function of manual use.
The utility model not only is confined to above embodiment, and its concrete structure allows various variations.As: if the quantity of self-lock pin can make main shaft when rotated around stress equalization, in a word, all various variations of being done in the utility model independent claims protection domain are all in protection domain of the present utility model.
Claims (2)
1, the gear-box of a kind of rechargeable electric drill and screwdriver set comprises gearbox-case (1), gear ring (2), main shaft (3), axle sleeve (4) and planet carrier (5); Described main shaft (3) is force-fitted in the gearbox-case (1) by axle sleeve (4), it is characterized in that: it also comprises self-locking motion block (6), from clamping block (7) and a plurality of self-lock pins (8) of matching with self-locking motion block (6) gap; Described self-locking motion block (6) and main shaft (3) interference fit; Describedly be fixed on gearbox-case (1) inwall from clamping block (7); The projection (9) of described planet carrier (5) is inserted into self-locking motion block (6) respectively and between the inwall of clamping block (7); The internal surface of described planet carrier (5) projection (9) has a projection (11) that matches with the groove (10) of self-locking motion block (6); Described self-lock pin (8) is placed on the arc-shaped surface (12) of self-locking motion block (6) and between clamping block (7).
2, the gear-box of rechargeable electric drill according to claim 1 and screwdriver set is characterized in that: it also comprises jump ring (13), pad (14) and one group of steel ball (15); Described jump ring (13) is stuck on the axle sleeve (4) by steel ball (15) and pad (14), and socket-connects with main shaft (3), and described pad (14) is placed between steel ball (15) and the axle sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200845578U CN201162817Y (en) | 2008-03-18 | 2008-03-18 | Charging type electric drill and gearbox of screw driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200845578U CN201162817Y (en) | 2008-03-18 | 2008-03-18 | Charging type electric drill and gearbox of screw driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201162817Y true CN201162817Y (en) | 2008-12-10 |
Family
ID=40183754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200845578U Expired - Fee Related CN201162817Y (en) | 2008-03-18 | 2008-03-18 | Charging type electric drill and gearbox of screw driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201162817Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013037325A1 (en) * | 2011-09-16 | 2013-03-21 | 苏州宝时得电动工具有限公司 | Electrician's screwdriver and portable hand-held tool |
| CN102990589A (en) * | 2011-09-16 | 2013-03-27 | 苏州宝时得电动工具有限公司 | Portable handheld tool |
| CN102990588A (en) * | 2011-09-16 | 2013-03-27 | 苏州宝时得电动工具有限公司 | Portable handheld tool |
| CN102990590A (en) * | 2011-09-16 | 2013-03-27 | 苏州宝时得电动工具有限公司 | Electrician's screwdriver |
| WO2016008321A1 (en) * | 2014-07-17 | 2016-01-21 | 苏州斯坦科机电有限公司 | Manual-automatic integration screwdriver and accommodating base thereof, and charging loop |
| CN109159069A (en) * | 2018-10-30 | 2019-01-08 | 淮阴工学院 | The transmission mechanism of gun-type screw wrenching tool |
-
2008
- 2008-03-18 CN CNU2008200845578U patent/CN201162817Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013037325A1 (en) * | 2011-09-16 | 2013-03-21 | 苏州宝时得电动工具有限公司 | Electrician's screwdriver and portable hand-held tool |
| CN102990589A (en) * | 2011-09-16 | 2013-03-27 | 苏州宝时得电动工具有限公司 | Portable handheld tool |
| CN102990588A (en) * | 2011-09-16 | 2013-03-27 | 苏州宝时得电动工具有限公司 | Portable handheld tool |
| CN102990590A (en) * | 2011-09-16 | 2013-03-27 | 苏州宝时得电动工具有限公司 | Electrician's screwdriver |
| CN102990588B (en) * | 2011-09-16 | 2015-04-22 | 苏州宝时得电动工具有限公司 | Portable handheld tool |
| WO2016008321A1 (en) * | 2014-07-17 | 2016-01-21 | 苏州斯坦科机电有限公司 | Manual-automatic integration screwdriver and accommodating base thereof, and charging loop |
| CN109159069A (en) * | 2018-10-30 | 2019-01-08 | 淮阴工学院 | The transmission mechanism of gun-type screw wrenching tool |
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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: 20081210 Termination date: 20120318 |