CN2269272Y - Electric driven spanners - Google Patents
Electric driven spanners Download PDFInfo
- Publication number
- CN2269272Y CN2269272Y CN 96228577 CN96228577U CN2269272Y CN 2269272 Y CN2269272 Y CN 2269272Y CN 96228577 CN96228577 CN 96228577 CN 96228577 U CN96228577 U CN 96228577U CN 2269272 Y CN2269272 Y CN 2269272Y
- Authority
- CN
- China
- Prior art keywords
- reduction gear
- gear mechanism
- gear
- utility
- motor
- 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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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to an electric spanner which is composed of a casing, an electromotor, a reduction gear mechanism, an impact working head, a control switch and a handle, wherein, the reduction gear mechanism comprises a first reduction gear mechanism and a second reduction gear mechanism. The first reduction gear mechanism is provided with a primary wheel and a secondary wheel, and the second reduction gear mechanism comprises a set of planetary gears. The utility model adopts two-stage gear graduation and planetary wheel deceleration, can effectively enhance the output power of the electromotor, extend the continuous operation period, enhance the work efficiency of the entire machine, and can be made into an electric spanner of large power, and utility model has reasonable structure, and is used for disassembling and assembling various nuts or screws.
Description
The utility model relates to a kind of electric tool, specifically a kind of electric wrench.
We know, installation or removal bolt and nut usually use electric wrench, and this instrument can produce the bump torsion of noncontinuity, assembling-disassembling bolt and nut apace.Usually, electric wrench is made up of casing, motor, working head, gauge tap and handle, and working head and motor are straight-through, and motor load is big, easy scaling loss, and stream time was no more than for 10 seconds; At present, also have electric wrench to set up decelerator in the middle of working head and motor, as patent 902097407 disclosed electric wrenches, it is made up of front cover shell, working head, decelerator, motor and casing, and its decelerator adopts the one-level planetary gear to slow down; Patent 932157955 disclosed electric tools, it adopts the two-stage planetary gear to slow down, and with the raising motor working efficiency, but the said goods stream time still is subjected to big, the easily restriction of scaling loss of motor load.
The purpose of this utility model is exactly in order to overcome the deficiency of above-mentioned prior art, provides a kind of structure reasonable, and reliable operation can improve motor service life, the electric spanner of prolongation stream time effectively.
For achieving the above object, a kind of electric wrench, it is by housing, motor, reduction gear, impact working head, gauge tap and handle are formed, it is characterized in that reduction gear comprises first reduction gear and second reduction gear, first reduction gear is provided with a step cone and two step cones, one step cone is contained on the eccentric gear axle, it is driven by motor output shaft, eccentric gear axle and the engagement of two step cones, two step cones are contained on the sun gear shaft, the sun gear shaft and the second reduction gear interlock, second reduction gear comprises one group of planetary gear, and planetary gear is contained on the motion main shaft, is set with the impact working head on the motion main shaft.
The utility model is owing to adopt above-mentioned reducing gear in the middle of impacting working head and motor, its structure rationally, but reasonably speed change increased motor strength, prolonged its service life and stream time, improved the operating efficiency of complete machine, be suitable for making powerful electric wrench.
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is a structural representation of the present utility model, also is the schematic diagram of embodiment.
As can be seen from Figure, a kind of electric wrench, it is by housing 1, motor 2, reduction gear 3, impact working head 4, gauge tap 5 and handle 6 are formed, motor 2 is contained in housing 1 rear portion, its output shaft 7 stretches out from the opening portion of housing 1, outputting power, impact the front portion that working head 4 is located at housing 1, it is sleeved on the motion main shaft 8, on the motion main shaft 8 and impact working head inboard all is provided with " eight " font groove 9, be equipped with steel ball 10 between them, also be with spring 11 on the motion main shaft 8, impact working head and can rotate under the drive of motion main shaft and utilize the strength of spring 11 to slide up and down along groove, its outer end is provided with pulls spools 12 and sleeve etc., apace dismounting nut etc.Gauge tap 5 is contained on the handgrip 6, and it can control the rotating of motor, and above-mentioned technology belongs to prior art, and this does not describe in detail.
The utility model is provided with reduction gear 3 in the middle of impacting working head and motor, this mechanism comprises two groups of reduction gears, first reduction gear is provided with a step cone 21 and two step cones 22, one step cone 21 is contained on the eccentric gear axle 23, it can be driven by intermediate by motor output shaft, eccentric gear axle 23 drives two step cones 22, two step cones 22 are contained on the sun gear shaft 24, second reduction gear is one group of planetary gear 25, driven by sun gear shaft 24, they are contained on the motion main shaft 8.Like this, the motor outputting power is transferred to motion main shaft 8 by two stage speed change, after slowing down, and then passes to and impact on the working head 4.
The utility model is owing to adopt two-stage gear shift and planetary gear speed-reduction, and it is rational in infrastructure, can improve the motor outputting power effectively, prolongs motor service life and stream time, improves the complete machine operating efficiency.After tested, the utility model continuous operation one hour, motor can scaling loss.The utility model can be suitable for making the large power, electrically wrench, is used for various nuts of dismounting or screw.
Claims (1)
1, a kind of electric wrench, it is by housing, motor, reduction gear, impact working head, gauge tap and handle are formed, it is characterized in that reduction gear comprises first reduction gear and second reduction gear, first reduction gear is provided with a step cone and two step cones, one step cone is contained on the eccentric gear axle, it is driven by motor output shaft, eccentric gear axle and the engagement of two step cones, two step cones are contained on the sun gear shaft, the sun gear shaft and the second reduction gear interlock, second reduction gear comprises one group of planetary gear, and planetary gear is contained on the motion main shaft, is set with the impact working head on the motion main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96228577 CN2269272Y (en) | 1996-08-07 | 1996-08-07 | Electric driven spanners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96228577 CN2269272Y (en) | 1996-08-07 | 1996-08-07 | Electric driven spanners |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2269272Y true CN2269272Y (en) | 1997-12-03 |
Family
ID=33906433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96228577 Expired - Fee Related CN2269272Y (en) | 1996-08-07 | 1996-08-07 | Electric driven spanners |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2269272Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501209A (en) * | 2011-09-29 | 2012-06-20 | 国家电网公司 | Direct-current motor-driven wrench |
| CN102501208A (en) * | 2011-09-29 | 2012-06-20 | 国家电网公司 | Alternating-current electric wrench |
| CN103659701A (en) * | 2013-10-25 | 2014-03-26 | 浙江吉利控股集团有限公司 | Electric wrench |
| CN105710813A (en) * | 2014-11-30 | 2016-06-29 | 杜胜 | Electric open spanner |
| CZ306590B6 (en) * | 2008-01-24 | 2017-03-22 | John Kurt Junkers | A torque intensifying tool |
-
1996
- 1996-08-07 CN CN 96228577 patent/CN2269272Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ306590B6 (en) * | 2008-01-24 | 2017-03-22 | John Kurt Junkers | A torque intensifying tool |
| CN102501209A (en) * | 2011-09-29 | 2012-06-20 | 国家电网公司 | Direct-current motor-driven wrench |
| CN102501208A (en) * | 2011-09-29 | 2012-06-20 | 国家电网公司 | Alternating-current electric wrench |
| CN102501208B (en) * | 2011-09-29 | 2015-03-11 | 国家电网公司 | Alternating-current electric wrench |
| CN103659701A (en) * | 2013-10-25 | 2014-03-26 | 浙江吉利控股集团有限公司 | Electric wrench |
| CN105710813A (en) * | 2014-11-30 | 2016-06-29 | 杜胜 | Electric open spanner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |