CN2642461Y - Power wrench - Google Patents
Power wrench Download PDFInfo
- Publication number
- CN2642461Y CN2642461Y CN 03250143 CN03250143U CN2642461Y CN 2642461 Y CN2642461 Y CN 2642461Y CN 03250143 CN03250143 CN 03250143 CN 03250143 U CN03250143 U CN 03250143U CN 2642461 Y CN2642461 Y CN 2642461Y
- Authority
- CN
- China
- Prior art keywords
- gear
- output shaft
- housing
- planetary gear
- shell
- 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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Abstract
The utility model discloses a force-increasing wrench designed with planetary gear train, which comprises a shell with an internal gear ring arranged on the internal wall of the shell, a two-level planetary gear train. A bearing block is extended from the end of the shell near a sleeve upward to the outside and sleeve. The output shaft 11 of the two-level planetary gear train stretches out from the shell and the shell shrinks inward at the end near the output shaft 11. So when using the tool, the gear installation position on the shell is located outside the working area. The shell dimensions are not restricted by the working area.
Description
Technical field:
The utility model relates to a kind of screw-nut assembling and disassembling device, particularly a kind of case type secondary reinforcement spanner that adopts the planet circular system operation principle to design.
Background technology:
Adopt the reinforcement spanner of planet circular system operation principle at present, can realize about 20 times reinforcement, but because its replaceable sleeve places in the housing of spanner, its gear ring housing external diameter is subjected to the narrow restriction of working range, its size can not increase, therefore, when requiring to increase output torque, just can not be by increasing gear ring, the number of teeth of gear and the multiple that modulus increases reinforcement.
Summary of the invention:
The purpose of this utility model is intended to overcome the shortcoming and defect of prior art, and a kind of case type secondary reinforcement spanner that adopts the planet circular system operation principle to design is provided.Therefore the shell dimension of this spanner is not subjected to the restriction of working range, can increase the number of teeth of gear ring, gear and the multiple that modulus increases reinforcement, thereby can increase the reinforcement multiple, and its scope of application is wide, mechanism's intensity height, long service life.
Concrete technical scheme of the present utility model is as follows:
The utility model comprises that inwall is provided with in the housing of ring gear, the housing and establishes gear for two stage planetary gear train.The one-level planet circular system comprise an end band gear power shaft I, with power shaft I on gear and three planetary gear I, the output shaft I of inner walls gear ring engagement, planetary gear I is fixed in bearing pin I on the output shaft I; The secondary planet train comprise an end band gear power shaft II, with power shaft II on gear and three planetary gear II, the output shaft II of inner walls gear ring engagement, planetary gear II is fixed in bearing pin II on the output shaft II.Sleeve is installed on the output shaft II.Outwards reach sleeve one at described housing near an end of sleeve and extend a back-up block.One non-circular hole is arranged on the output shaft I, and the head that power shaft II goes up and this non-circular hole is suitable inserts wherein.Outside the protruding housing of described output shaft II.
Above-mentioned housing is inwardly shrinking near output shaft II one end, and the appearance and size that makes this end is less than the other end.
Above-mentioned gear ring is pilot hole for being divided into secondary between its secondary gear ring.
Above-mentioned back-up block is tabular, and along housing radially is its width.
Its cross section of above-mentioned back-up block is " worker " font.
Since outside the protruding housing of output shaft II and housing inwardly shrinking near output shaft II one end, when therefore using, the housing of this reinforcement spanner is installed gear parts and is in outside the workspace, so its shell dimension is not subjected to the restriction of workspace.
Because its cross section of back-up block is " worker " font, so its mechanism's intensity height.
Description of drawings:
Fig. 1 is the utility model cross-sectional view
Fig. 2 is the utility model planet circular system work schematic diagram
1-output shaft II 2-bearing pin II 3-output shaft I 4-star gear I 5-gear ring 6-power shaft I 7-housing 8-bearing pin I 9-power shaft II 10-star gear II 11-back-up block 12-sleeve 13-pilot hole
The specific embodiment:
The utility model comprises that inwall is provided with in the housing 7 of ring gear 5, the housing 7 and establishes gear for two stage planetary gear train.The one-level planet circular system comprise an end band gear power shaft I6, nibble 5 three planetary gear I4, the output shaft I3 that close, planetary gear I4 be fixed in bearing pin I8 on the output shaft I3 with gear and housing 7 inwall gear rings on the power shaft I; The secondary planet train comprise an end band gear power shaft II9, with power shaft II9 on gear and three planetary gear II10, the output shaft II1 of the engagement of housing 7 inwall gear rings 5, planetary gear II10 is fixed in bearing pin II2 on the output shaft II1.Sleeve 12 is installed on the output shaft II1.Outwards reach sleeve 12 1 ends at described housing 7 near an end of sleeves 12 and extend a back-up block 11.One non-circular hole is arranged on the output shaft I3, and the head that power shaft II9 goes up and this non-circular hole is suitable inserts wherein.Outside the protruding housing 7 of described output shaft II1.
Above-mentioned housing 7 is inwardly shrinking near output shaft II1 one end, and the appearance and size that makes this end is less than the other end.
Above-mentioned gear ring 5 is pilot hole 13 for being divided into secondary between its secondary gear ring.
Above-mentioned back-up block 11 is tabular, and along housing radially is its width.
Above-mentioned back-up block 11 its cross sections are " worker " font.
Operation principle of the present utility model is such: rotate power shaft I, because the gear on the power shaft I and planetary gear I and ring gear engagement, thereby when driving three star gear I around its rotation, around power shaft I rotation.I is fixed on the output shaft I because of the star gear, rotates thereby drive output shaft I.Output shaft I drives power shaft II again and rotates.Equally, because of the gear on the power shaft II and planetary gear II and ring gear engagement, thereby when driving three star gear II, rotate around power shaft II around its rotation.II is fixed on the output shaft II because of the star gear, rotates thereby drive output shaft II.Output shaft I drives the sleeve that is mounted thereon again and rotates, thereby reaches purpose fastening or loose nut or bolt.
Claims (5)
1, the reinforcement spanner, comprise that inwall is provided with the housing of ring gear (5) (7), housing is established gear for two stage planetary gear train in (7), the one-level planet circular system comprises the power shaft I (6) of an end band gear, mesh three planetary gear I (4) of (5) with gear and housing (7) inwall gear ring on the power shaft I, output shaft I (3), planetary gear I (4) is fixed in bearing pin I (8) on the output shaft I (3), the secondary planet train comprises the power shaft II (9) of an end band gear, three planetary gear II (10) with gear on the power shaft II (9) and housing (7) inwall gear ring (5) engagement, output shaft II (1), planetary gear II (10) is fixed in bearing pin II (2) on the output shaft II (1), sleeve (12) is installed on the output shaft II (1), outwards reach sleeve (12) one ends at described housing (7) near an end of sleeve (12) and extend a back-up block (11), output shaft I has a non-circular hole on (3), the head that power shaft II (9) goes up and this non-circular hole is suitable inserts wherein, it is characterized in that: outside the protruding housing of described output shaft II (1) (7).
2, reinforcement spanner according to claim 1 is characterized in that: described housing (7) is inwardly shrinking near output shaft II1 one end, and the appearance and size that makes this end is less than the other end.
3, reinforcement spanner according to claim 1 and 2 is characterized in that: described gear ring (5) is pilot hole (13) between its secondary gear ring for being divided into secondary.
4, reinforcement spanner according to claim 1 and 2 is characterized in that: described back-up block (11) is tabular, and along housing radially is its width.
5, reinforcement spanner according to claim 4 is characterized in that: its cross section of described back-up block (11) is " worker " font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03250143 CN2642461Y (en) | 2003-08-29 | 2003-08-29 | Power wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03250143 CN2642461Y (en) | 2003-08-29 | 2003-08-29 | Power wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2642461Y true CN2642461Y (en) | 2004-09-22 |
Family
ID=34293808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03250143 Expired - Fee Related CN2642461Y (en) | 2003-08-29 | 2003-08-29 | Power wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2642461Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890690A (en) * | 2010-06-29 | 2010-11-24 | 杨国福 | Effort-saving wrench socket and manufacturing method thereof |
| CN102747689A (en) * | 2012-07-13 | 2012-10-24 | 中铁十六局集团铁运工程有限公司宁阳制梁场 | Heavy haul railway T-beam template bolt fastening tool |
-
2003
- 2003-08-29 CN CN 03250143 patent/CN2642461Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890690A (en) * | 2010-06-29 | 2010-11-24 | 杨国福 | Effort-saving wrench socket and manufacturing method thereof |
| CN101890690B (en) * | 2010-06-29 | 2012-07-04 | 杨国福 | Effort-saving wrench socket and manufacturing method thereof |
| CN102747689A (en) * | 2012-07-13 | 2012-10-24 | 中铁十六局集团铁运工程有限公司宁阳制梁场 | Heavy haul railway T-beam template bolt fastening tool |
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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 |