CN101920484B - Screw driver - Google Patents
Screw driver Download PDFInfo
- Publication number
- CN101920484B CN101920484B CN2010102303797A CN201010230379A CN101920484B CN 101920484 B CN101920484 B CN 101920484B CN 2010102303797 A CN2010102303797 A CN 2010102303797A CN 201010230379 A CN201010230379 A CN 201010230379A CN 101920484 B CN101920484 B CN 101920484B
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- gear
- sliding sleeve
- ring
- decelerator
- tooth
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Abstract
The invention relates to a screw driver. The screw driver comprises a screw driver head and a handle part, wherein the screw driver head contains a sleeve and a front wheel stand; the handle part contains a handle and a back wheel stand; the front wheel stand is connected with the planet gear shaft and planet gear of a reducer; the back wheel stand is connected with the planet gear shaft and planet gear of an accelerator; a core wheel is arranged between the planet gear of the reducer and the planet gear of the accelerator; the core wheel contains a spoke, a front wheel core and a back wheel core; the planet gear of the reducer is meshed with the front wheel core; the planet gear of the accelerator is meshed with the back wheel core; the planet gear of the reducer is arranged in a front gear ring, the two ends of the outer wall of the front gear ring are provided with teeth; the planet gear of the accelerator is arranged in a back gear ring, the two ends of the outer wall of the back gear ring are provided with teeth; the two ends of an associator are provided with teeth; the outside of the front gear ring is provided with a front sliding sleeve; and the outside of the back gear ring is provided with a back sliding sleeve, and the front sliding sleeve is fixedly connected with the back sliding sleeve. The invention is suitable for unscrewing or tightening the screw.
Description
Technical field
The present invention relates to a kind of screwdriver that is used for holding screw.
Background technology
Existing screwdriver generally has common manual screw bottle opener and with two big types of electricity or gas-powered spiral ratchet screw drivers.Common manual screw bottle opener is almost had no idea for bigger screw or the dead screw of prolonged rust, and need twist some circles after unclamping or before tightening, and not only effort but also efficient are low.Not only need power supply or source of the gas with electricity or gas-powered spiral ratchet screw driver, and cost is than higher.
Summary of the invention
Technical problem to be solved by this invention is: laborsaving, efficient when a kind of use is provided, and lower-cost screwdriver.
For addressing the above problem, the technical scheme that the present invention adopts is: screwdriver comprises: screwdriver head and shank, described screwdriver head comprise sleeve and the front wheel carrier that is fixed together; Described shank comprises the handle body and the rear wheel frame of fixed connection, is provided with a hole on the front wheel carrier at least, is movably set with the decelerator planet pin in each hole, is set with the decelerator planetary gear on the decelerator planet pin; Also be provided with a hole on the rear wheel frame at least, be movably set with the speed increaser planet pin in each hole, be set with the speed increaser planetary gear on the speed increaser planet pin; Be provided with the core wheel between decelerator planetary gear and the speed increaser planetary gear, core wheel and back core wheel before the centre, two ends of core wheel is set with respectively, the decelerator planetary gear is meshed with preceding core wheel, and the speed increaser planetary gear is meshed with the back core wheel;
Front ring gear is sleeved on the outside of front wheel carrier, and the decelerator planetary gear is positioned at the inside of front ring gear and is meshed with the internal tooth of front ring gear, and the outer wall two ends of described front ring gear are respectively arranged with before the front ring gear end tooth behind the end tooth and front ring gear; Back gear ring is sleeved on the outside of rear wheel frame, and the speed increaser planetary gear is positioned at the inside of back gear ring and is meshed with the internal tooth of back gear ring, and the outer wall two ends of described back gear ring are respectively arranged with before the gear ring of back end tooth behind the end tooth and back gear ring;
Be provided with at least one groove vertically on the outer wall of the spoke of core wheel, be movably set with zygote in the groove, the front end of zygote be provided with front ring gear after the tooth that matches of end tooth, the rear end of zygote is provided with the tooth that matches with the preceding end tooth of back gear ring; Be provided with between front ring gear and the core wheel front ring gear and core are taken turns spacing front limit device each other, be provided with between back gear ring and the core wheel back gear ring and the mutual spacing back stopping means of core wheel;
Advancing slip cover is sleeved on the outside of front ring gear and prelocalization device, the set inside of preceding sliding sleeve have with front ring gear before the tooth that matches of end tooth; Back sliding sleeve is sleeved on the outside of back gear ring and post-positioning device, the set inside of back sliding sleeve have with back gear ring after the tooth that matches of end tooth; Sliding sleeve is mutually permanently connected with the back sliding sleeve before described; Before described zygote is movably arranged in sliding sleeve and the back sliding sleeve, and is provided with between the preceding sliding sleeve, back sliding sleeve and zygote and can makes zygote along with preceding sliding sleeve and back sliding sleeve slide together vertically, the zygote hoop Drive Structure of rotating freely again.
Described front wheel carrier upper edge hoop evenly is provided with three holes, and three decelerator planet pin correspondences are arranged in three holes, are set with the decelerator planetary gear respectively on each decelerator planet pin; Described rear wheel frame upper edge hoop evenly is provided with three holes, and three speed increaser planet pin correspondences are arranged in three holes, are set with the speed increaser planetary gear respectively on each speed increaser planet pin.
The concrete mode of described Drive Structure is: be provided with a boss at the middle part of zygote, the inwall of back sliding sleeve is provided with a circular chute, and boss is movably arranged in this chute.
The concrete structure of described front limit device is: front ring gear is respectively arranged with mutual corresponding positive stop lug boss with the spoke front end of core wheel, and the front limit cover is sleeved between these two positive stop lug boss; Back gear ring also is respectively arranged with mutual corresponding positive stop lug boss with the spoke rear end of core wheel, and back stop collar is sleeved between these two positive stop lug boss.
Fix through pin between described handle body and the rear wheel frame.
The invention has the beneficial effects as follows: overcome common bottle opener effort, poor efficiency, and electric screw driver needs power supply or source of the gas, drawback that cost is high, have laborsaving and efficient, volume is little, in light weight, easy to carry, advantage such as cost is low, the scope of application is extensive.
Description of drawings
Fig. 1 is the structural representation that screwdriver of the present invention is in acceleration mode;
Fig. 2 is the structural representation that screwdriver of the present invention is in the reinforcement state;
Fig. 3 is the mounting structure sketch map between decelerator planetary gear in the screwdriver of the present invention, core wheel, zygote and the back gear ring;
Fig. 4 is front ring gear and the planetary mounting structure sketch map of decelerator in the screwdriver of the present invention;
Fig. 5 is back gear ring and the planetary mounting structure sketch map of speed increaser in the screwdriver of the present invention;
Fig. 6 is the mounting structure sketch map of screwdriver SMIS wheel of the present invention and zygote;
Fig. 7 is the structural representation of front ring gear in the screwdriver of the present invention;
Fig. 8 is the structural representation of back gear ring in the screwdriver of the present invention;
Fig. 9 is the structure for amplifying sketch map of A portion among Fig. 1;
Among the figure: 1, screwdriver head, 11, sleeve, 12, front wheel carrier, 2, shank, 21, the handle body, 22, rear wheel frame; 23, pin, 3, the decelerator planet pin, 4, the decelerator planetary gear, 5, the core wheel, 51, spoke, 52, preceding core wheel; 53, back core wheel, 54, preceding core wheel boss, 55, back core wheel boss, 6, front ring gear, 61, end tooth before the front ring gear, 62, end tooth behind the front ring gear; 63 front ring gear boss, 64, the front ring gear hole, 7, the speed increaser planet pin, 8 speed increaser planetary gears, 9, the back gear ring; 91, end tooth before the gear ring of back, 92, end tooth behind the gear ring of back, 93, back gear ring boss, 94, gear ring hole, back, 10, zygote; 101, boss, 13, preceding sliding sleeve, 14, the front limit cover, 15, the back sliding sleeve, 16, the back stop collar.
The specific embodiment
Through specific embodiment screwdriver of the present invention is done further to describe in detail below.
Like Fig. 1, Fig. 2, shown in Figure 9, screwdriver comprises: screwdriver head 1 and shank 2; Described screwdriver head 1 comprises the sleeve 11 and front wheel carrier 12 that is fixed together, in use, and can be according to the different model of screw; The screwdriver bit of correspondingly-shaped is sleeved on the inside of sleeve 11; Described shank 2 comprises handle body 21 and rear wheel frame 22, is fixedly connected through pin 23 between described handle body 21 and the rear wheel frame 22, and described front wheel carrier 12 upper edge hoops evenly are provided with three holes; Three decelerator planet pin 3 correspondences are movably arranged in three holes, are fixed with decelerator planetary gear 4 respectively on each decelerator planet pin 3; Described rear wheel frame 22 upper edge hoops evenly are provided with three holes, and three speed increaser planet pin 7 correspondences are movably arranged in three holes, are fixed with speed increaser planetary gear 8 respectively on each speed increaser planet pin 7; Like Fig. 1, shown in Figure 3; Be provided with core wheel 5 between decelerator planetary gear 4 and the speed increaser planetary gear 8, as shown in Figure 6, described core wheel 5 is structure as a whole; Comprise spoke 51; Core wheel 52 and back core wheel 53 before the centre, two ends of core wheel 5 is fixed with respectively, preceding core wheel 52 is positioned at the center of three decelerator planetary gears 4, and all is meshed with three decelerator planetary gears 4; Back core wheel 53 is positioned at the center of three speed increaser planetary gears 8, and all is meshed with three speed increaser planetary gears 8;
As shown in Figure 4; Decelerator planetary gear 4 is positioned at the inside of front ring gear 6 and is meshed with the internal tooth of front ring gear 6; As shown in Figure 7, the outer wall two ends of described front ring gear 6 are respectively arranged with before the front ring gear end tooth 62 behind the end tooth 61 and front ring gear, and the antetheca center of front ring gear is provided with a front ring gear hole 64; The front end of front wheel carrier 12 passes front ring gear hole 64, makes front wheel carrier 12 be sleeved on the inside of front ring gear 6; As shown in Figure 5; Speed increaser planetary gear 8 is positioned at the inside of back gear ring 9 and is meshed with the internal tooth of back gear ring 9; As shown in Figure 8, end tooth 92 behind preceding end tooth 91 of gear ring and the back gear ring after the outer wall two ends of described back gear ring 9 are respectively arranged with, gear ring hole 94 after the rear wall center of back gear ring is provided with; Gear ring hole, back 94 is passed in the rear end of rear wheel frame 22, makes rear wheel frame 22 be sleeved on the inside of back gear ring 9;
Like Fig. 3, shown in Figure 6; Be symmetrically arranged with two grooves on the outer wall of spoke 51; Be movably set with zygote 10 in the groove respectively, thereby realize the hoop locking between zygote 10 and the spoke 51, two zygotes 10 all can slide in groove vertically; The front end of each zygote 10 be provided with front ring gear after the preceding end tooth that matches of end tooth 62, the rear end of each zygote 10 be provided with the back gear ring before the back end tooth that matches of end tooth 91; Be provided with between front ring gear and the core wheel front ring gear and the mutual spacing front limit device of core wheel; The concrete structure of described front limit device is: end tooth 61 is lower than end tooth 62 behind the front ring gear before the front ring gear; Form a front ring gear boss 63 before the front ring gear behind end tooth 61 and the front ring gear between the end tooth 62---referring to shown in Figure 7; Core wheel boss 54 before the outer wall front end of spoke 51 is provided with; Front limit cover 14 is sleeved between front ring gear boss 63 and the preceding core wheel boss 54; Front limit cover 14 is divided into go forward stop collar and following front limit cover, fixes through screw thread between stop collar and the following front limit of the going forward cover, in the gap of described front limit cover 14 between preceding sliding sleeve 13 and front ring gear 6 and spoke 51; Be provided with between back gear ring and the core wheel back gear ring and the mutual spacing back stopping means of core wheel; The concrete structure of described back stopping means is: end tooth 92 behind the gear ring after end tooth 91 is higher than before the gear ring of back; Gear ring boss 93 after forming one between the end tooth 92 behind end tooth 91 and the back gear ring before the back gear ring---referring to shown in Figure 8; The outer wall rear end of spoke 51 is provided with back core wheel boss 55; Back stop collar 16 is sleeved between back gear ring boss 93 and the back core wheel boss 55; Back stop collar 16 is divided into back stop collar and following back stop collar, last back stop collar and fixing through screw thread between the stop collar of back down, described back stop collar 16 back sliding sleeve 15 and after in the gap between gear ring 9 and the spoke 51;
Before sliding sleeve 13 be sleeved on the outside of front ring gear 6 and prelocalization device, the set inside of preceding sliding sleeve 13 have with front ring gear before the tooth that matches of end tooth 61; Back sliding sleeve 15 is sleeved on the outside of back gear ring 9 and post-positioning device; The set inside of back sliding sleeve 15 have with back gear ring after the tooth that matches of end tooth 92; Sliding sleeve 13 and back sliding sleeve 15 are mutually permanently connected through screw thread before described; The middle part of said zygote 10 is provided with a boss 101, is provided with a circular chute between described preceding sliding sleeve 13 and the back sliding sleeve 15, and boss 101 activities are provided with in the chute; Thereby zygote 10 can be endwisely slipped along with preceding sliding sleeve 13 and back sliding sleeve 15 together, and zygote 10 can rotate along hoop on chute internal freedom ground.
Operation principle of the present invention is: like Fig. 1, shown in Figure 9, screwdriver is a fast state, and sliding sleeve 13 and back sliding sleeve 15 are positioned at the front end of screwdriver before this moment; End tooth 62 is meshed behind the preceding end tooth of zygote 10 and the front ring gear, and end tooth 91 is separated before the back end tooth of zygote 10 and the back gear ring, behind the back gear ring end tooth 92 with after sliding sleeve 15 interior teeth be meshed; Back gear ring 9 is fixedly connected with back sliding sleeve 15 and remains static; End tooth 61 is separated with preceding sliding sleeve 13 interior teeth before the front ring gear, and front ring gear 6 is in active state, and front ring gear 6 can rotate along with the rotation of zygote 10 synchronously; Because hoop locking between zygote 10 and the spoke 51; Thereby make front ring gear 6 meetings along with the rotation of core wheel 5 and rotation synchronously, former core wheel 52 is the central synchronous revolution along with the rotation of front ring gear 6 for decelerator planetary gear 4 and decelerator planet pin 3 at this moment, because decelerator planetary gear 4 is identical with the rotating speed of front ring gear 6; So decelerator planetary gear 4 can rotation; Be that decelerator planetary gear 4 is in the deceleration disarmed state, the revolution of decelerator planet pin 3 drives the rotation of front wheel carrier 12, thereby makes screwdriver head 1 also along with core wheel 5 rotates synchronously.During use, one holds preceding sliding sleeve 13 and back sliding sleeve 15, and the another hand-screw moves shank 2; Rear wheel frame 22 rotates, thereby speed increaser planet pin 7 and speed increaser planetary gear 8 are revolved round the sun with the center of rear wheel frame 22, because back gear ring 9 is fixedly connected and can not rotates with back sliding sleeve 15; Speed increaser planetary gear 8 also necessary rotation in the 9 inner revolution of back gear ring; Because the diameter of rear wheel frame 22 is much larger than the diameter of speed increaser planetary gear 8, so the rotating speed of speed increaser planetary gear 8 is the several times of rear wheel frame 22 rotating speeds, the high speed rotating of speed increaser planetary gear 8 gear ring 9 inside in the back drive the high speed rotating of back core wheel 53; It is the high speed rotating of core wheel 5; According to noted earlier, screwdriver head 1 is along with core wheel 5 rotates synchronously, and screwdriver head 1 can be taken turns 5 high speed rotating with core; Make screwdriver be in fast state, accomplish the action of tightening or unclamping screw fast.
As shown in Figure 2, screwdriver is the reinforcement state, and sliding sleeve 13 and back sliding sleeve 15 are positioned at the rear end of screwdriver before this moment; The back end tooth of zygote 10 is meshed with the preceding end tooth 91 of back gear ring; End tooth 62 is separated behind the preceding end tooth of zygote 10 and the front ring gear, and end tooth 61 is meshed with preceding sliding sleeve 13 interior teeth before the front ring gear, and front ring gear 6 is fixedly connected with preceding sliding sleeve 13 and remains static; End tooth 92 is separated with the tooth of back sliding sleeve 15 behind the back gear ring, and back gear ring 9 is in active state.During use, one holds preceding sliding sleeve 13 and back sliding sleeve 15, and the another hand-screw moves shank 2; Rear wheel frame portion 22 rotates, drive speed increaser planet pin 7 and speed increaser planetary gear 8 after core wheel 53 be the central synchronous revolution because back gear ring 9 and after sliding sleeve 15 be separated and be in active state; Back gear ring 9 rotates synchronously along with the revolution of speed increaser planetary gear 8, because back gear ring 9 is identical with the rotating speed of speed increaser planetary gear 8, so speed increaser planetary gear 8 can rotation; Be that the speed increaser planetary gear is in the speedup disarmed state, because the back end tooth of zygote 10 is meshed with the preceding end tooth 91 of back gear ring, the rotation of back gear ring 9 drives the rotation of zygote 10; Because hoop locking between zygote 10 and the spoke 51, thereby core wheel 5 rotates the rotation of core wheel 52 before the rotation promptly of core wheel 5 synchronously along with the rotation of back gear ring 9; The rotation of preceding core wheel 52 drives decelerator planetary gear 4 and 3 rotations of decelerator planet pin, because front ring gear 6 remains static, decelerator planetary gear 4 and decelerator planet pin 3 also revolve round the sun in front ring gear 6 inner rotations; The revolution of decelerator planet pin 3 drives the rotation of front wheel carrier 12, i.e. the rotation of screwdriver head 1 is because the diameter of front wheel carrier 12 is much larger than the diameter of decelerator planetary gear 4; So the rotating speed of front wheel carrier 12 is far below decelerator planetary gear 4 rotating speeds; Screwdriver head 1 slowly runs under the drive of decelerator planetary gear 4, because the merit that rotation shank 2 is done is a certain value, the moment of torsion of screwdriver head 1 promptly is inversely proportional to rotating speed; The moment of torsion of screwdriver head 1 is big more; It is tightened or to unclamp the strength of screw big more, so when the speed of screwdriver head 1 is lowered, the purpose that just can realize tightening energetically or unclamping screw.
Claims (5)
1. screwdriver, comprising: screwdriver head and shank is characterized in that: described screwdriver head comprises sleeve and the front wheel carrier that is fixed together; Described shank comprises the handle body and the rear wheel frame of fixed connection, is provided with a hole on the front wheel carrier at least, is movably set with the decelerator planet pin in each hole, is set with the decelerator planetary gear on the decelerator planet pin; Also be provided with a hole on the rear wheel frame at least, be movably set with the speed increaser planet pin in each hole, be set with the speed increaser planetary gear on the speed increaser planet pin; Be provided with the core wheel between decelerator planetary gear and the speed increaser planetary gear, core wheel and back core wheel before the centre, two ends of core wheel is set with respectively, the decelerator planetary gear is meshed with preceding core wheel, and the speed increaser planetary gear is meshed with the back core wheel;
Front ring gear is sleeved on the outside of front wheel carrier, and the decelerator planetary gear is positioned at the inside of front ring gear and is meshed with the internal tooth of front ring gear, and the outer wall two ends of described front ring gear are respectively arranged with before the front ring gear end tooth behind the end tooth and front ring gear; Back gear ring is sleeved on the outside of rear wheel frame, and the speed increaser planetary gear is positioned at the inside of back gear ring and is meshed with the internal tooth of back gear ring, and the outer wall two ends of described back gear ring are respectively arranged with before the gear ring of back end tooth behind the end tooth and back gear ring;
Be provided with at least one groove vertically on the outer wall of the spoke of core wheel, be movably set with zygote in the groove, the front end of zygote be provided with front ring gear after the tooth that matches of end tooth, the rear end of zygote is provided with the tooth that matches with the preceding end tooth of back gear ring; Be provided with between front ring gear and the core wheel front ring gear and core are taken turns spacing front limit device each other, be provided with between back gear ring and the core wheel back gear ring and the mutual spacing back stopping means of core wheel;
Advancing slip cover is sleeved on the outside of front ring gear and prelocalization device, the set inside of preceding sliding sleeve have with front ring gear before the tooth that matches of end tooth; Back sliding sleeve is sleeved on the outside of back gear ring and post-positioning device, the set inside of back sliding sleeve have with back gear ring after the tooth that matches of end tooth; Sliding sleeve is mutually permanently connected with the back sliding sleeve before described; Before described zygote is movably arranged in sliding sleeve and the back sliding sleeve, and is provided with between the preceding sliding sleeve, back sliding sleeve and zygote and can makes zygote along with preceding sliding sleeve and back sliding sleeve slide together vertically, the zygote hoop Drive Structure of rotating freely again.
2. screwdriver according to claim 1; It is characterized in that: described front wheel carrier upper edge hoop evenly is provided with three holes; Three decelerator planet pin correspondences are arranged in three holes, are set with the decelerator planetary gear respectively on each decelerator planet pin; Described rear wheel frame upper edge hoop evenly is provided with three holes, and three speed increaser planet pin correspondences are arranged in three holes, are set with the speed increaser planetary gear respectively on each speed increaser planet pin.
3. screwdriver according to claim 1 and 2; It is characterized in that: the concrete mode of described Drive Structure is: be provided with a boss at the middle part of zygote; The inwall of back sliding sleeve is provided with a circular chute, and boss is movably arranged in this chute.
4. screwdriver according to claim 1 and 2; It is characterized in that: the concrete structure of described front limit device is: front ring gear is respectively arranged with mutual corresponding positive stop lug boss with the spoke front end of core wheel, and the front limit cover is sleeved between these two positive stop lug boss; Back gear ring also is respectively arranged with mutual corresponding positive stop lug boss with the spoke rear end of core wheel, and back stop collar is sleeved between these two positive stop lug boss.
5. screwdriver according to claim 1 and 2 is characterized in that: fix through pin between described handle body and the rear wheel frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102303797A CN101920484B (en) | 2010-07-19 | 2010-07-19 | Screw driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102303797A CN101920484B (en) | 2010-07-19 | 2010-07-19 | Screw driver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101920484A CN101920484A (en) | 2010-12-22 |
| CN101920484B true CN101920484B (en) | 2012-08-22 |
Family
ID=43335829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102303797A Expired - Fee Related CN101920484B (en) | 2010-07-19 | 2010-07-19 | Screw driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101920484B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106965115B (en) * | 2017-01-24 | 2019-04-02 | 重庆工程学院 | Speedup screwdriver |
| CN109926958B (en) * | 2019-04-01 | 2020-11-27 | 国网山东省电力公司临沂供电公司 | Quick labor-saving wrench for electric power overhaul |
| CN111823173A (en) * | 2020-08-14 | 2020-10-27 | 陕西科技大学 | Labor-saving screwdriver |
| TWI742898B (en) * | 2020-10-29 | 2021-10-11 | 和嘉興精密股份有限公司 | Transmission structure |
| CN113770964A (en) * | 2021-09-24 | 2021-12-10 | 王富强 | Adjustable labor-saving screwdriver |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4453433A (en) * | 1981-04-27 | 1984-06-12 | Burke Clement | Gear wrench having adjustment to assure proper meshing |
| US5033336A (en) * | 1990-10-17 | 1991-07-23 | Chia Tsai Lai | Structure of hand-operated screw driver with high driving speed/high torque force alternative selection mechanism |
| CN201089130Y (en) * | 2007-09-28 | 2008-07-23 | 林佳韵 | Ratchet wheel screwdriver |
| CN201755809U (en) * | 2010-07-19 | 2011-03-09 | 苏州百泰柯机械有限公司 | Screw driver |
-
2010
- 2010-07-19 CN CN2010102303797A patent/CN101920484B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101920484A (en) | 2010-12-22 |
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