CN104369143A - Special dodecagonal wrench - Google Patents
Special dodecagonal wrench Download PDFInfo
- Publication number
- CN104369143A CN104369143A CN201410630389.8A CN201410630389A CN104369143A CN 104369143 A CN104369143 A CN 104369143A CN 201410630389 A CN201410630389 A CN 201410630389A CN 104369143 A CN104369143 A CN 104369143A
- Authority
- CN
- China
- Prior art keywords
- gear shaft
- cover plate
- special
- gear
- engine
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B17/00—Hand-driven gear-operated wrenches or screwdrivers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a special dodecagonal wrench. The special dodecagonal wrench comprises an upper cover plate and a lower cover plate, wherein the upper cover plate and the lower cover plate are the same. Three holes are formed in each cover plate, a gear shaft b, a gear shaft a and a gear shaft c are sequentially embedded into the through holes, a gear shaft body of the gear shaft a is simultaneously meshed with gear shaft bodies of the gear shaft b and the gear shaft c, the upper portion of the gear shaft b is an external dodecagonal nut port, the upper portion of the gear shaft c is a universal extension rod port, threaded sleeves are arranged between the upper cover plate and the lower cover plate, and the upper cover plate and the lower cover plate are fixed through the two ends of the threaded sleeves via screws. According to the novel special dodecagonal wrench, under the disassembly condition, self-locking nuts for inter-stage connection can be disassembled from narrow space in an engine shell through two-stage gear transmission, the maintenance and cleaning workload of an engine is greatly reduced, the structure in the engine cannot be damaged, work efficiency is improved, the service life of the engine is prolonged, and great convenience is brought for disassembly work.
Description
Technical field
The present invention relates to engine maintenance technical equipment field, specifically refer to a kind of 12 side's special spanners.
Background technology
Aero-engine is in repair procedures, need to utilize general utility tool to be decomposed by engine, but some time due to operating space, limited location, the general utility tool design specialized frock that just needs when can not operate to suit measures to local conditions is used to dismantle engine, such as directly in engine crankcase enclosure interior, inter-stage attachment bolt to be decomposed, but decompose to get up very difficult, existing also do not have good solution at present.
Summary of the invention
For prior art Problems existing, the object of the present invention is to provide a kind of 12 side's special spanner and application thereof can decomposed 12 square nuts.
The present invention is achieved through the following technical solutions: a kind of 12 side's special spanners, comprise upper and lower two pieces of identical cover plates, described cover plate is provided with three through holes, through hole is nested with gear shaft b, gear shaft a, gear shaft c successively, the gear shaft of described gear shaft a engages with the gear shaft of gear shaft b and gear shaft c simultaneously, described gear shaft b top is external 12 square nut interfaces, gear shaft c top is external general extension bar mouth, so be also provided with swivel nut between upper and lower two cover plates 1, upper and lower two cover plates is fixed by screw in swivel nut two ends.The technical problem that the present invention mainly solves is in the shell situation not dismantling engine, inter-stage attachment bolt to be decomposed for inside, nut dismounting is got off.The concrete use procedure of 12 side's special spanner is, first the 12 square nut interfaces on special spanner gear shaft b top are fixed on need decompose bolt or nut on, pipe gear shaft a is passed again with fixed axis that is T-shaped or L-type, fixed axis is utilized to draw special spanner, location, finally external connecting rods is inserted in the external general extension bar mouth on gear shaft c top, rotate external connecting rods, gear shaft c rotates thereupon, again because the gear shaft of gear shaft a engages with the gear shaft of gear shaft b and gear shaft c simultaneously, therefore gear shaft c driven gear axle a rotates, gear shaft a again driven gear axle b rotates, thus the 12 square nut interfaces on gear shaft b top are rotated, the bolt needing to decompose or nut are decomposed, because this special spanner is very little, engine casing work can be put into, then can when not removal of engine wheel chamber casing, the inter-stage attachment bolt to be decomposed to engine interior or nut carry out apportioned effort.
To better implement the present invention, further, described general extension bar mouth is cubic extension bar mouth.The kind of general extension bar mouth is a lot, also comprises six side's extension bar mouths etc., and preferably use cubic extension bar mouth here, can meet the demand of turning gear wheel shaft c, other general extension bar mouths that gear shaft c can be made to rotate all drop in scope.
To better implement the present invention, further, described screw is arranged on the lid surface between adjacent two through hole.Screw plays the effect of fixing upper and lower two cover plates; ensure that gear shaft rotates stable simultaneously; therefore lid surface nut is arranged between adjacent two through hole, play firm effect, the screw position plan of establishment that can reach equivalent technology effect all drops in scope.
To better implement the present invention, further, the quantity of described screw is four, and with cover plate intermediate throughholes center line axisymmetricly.In order to ensure the stress equalization between two cover plates, therefore screw is symmetrical arranged, and arranges four, plays stabilization further, and the screw technique scheme that can reach equivalent technology effect all drops in scope.
To better implement the present invention, further, described special spanner with cover plate intermediate throughholes center line axisymmetricly.For ensureing uniform force, therefore special spanner with cover plate intermediate throughholes center line axisymmetricly, can ensure all to fall into the technical scheme that special spanner effect is implemented smoothly in the scope of protection of the invention.
To better implement the present invention, further, the axis of three through holes of described cover plate at grade.Namely the through hole on cover plate is arranged in a linear, and convenient at external rotating external connecting rods, the arrays of openings mode that can reach technique effect of the same race also can adopt, and all falls within the scope of protection of the present invention.
To better implement the present invention, further, the gear number of teeth of described gear shaft a, gear shaft b, gear shaft c is 18, and gear seamed edge rounding.Through test of many times gained, gear number of teeth the best of gear shaft is 18, and in order to reduce gear shaft gear wear, extends its service life, therefore wedge angle, burr is removed in the gear corner of gear shaft, seamed edge rounding.
To better implement the present invention, further, the module of described gear shaft a, gear shaft b, gear shaft c is identical.The modulus of gear shaft is all identical, is to ensure a good transmission effect, can adjusting according to the actual requirements.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) the present invention proposes new 12 side's special spanners, can from the inner narrow space of motor body, the self-locking nut connected by inter-stage by 2 grades of gear drives is decomposed, improve operating efficiency, extend the service life of engine, for apportioned effort brings great convenience;
(2) three gear shafts are fixed by upper and lower two-layer cover plate by the present invention, thus can be firm carry out apportioned effort;
(3) structure of the present invention is simple, and cost is lower, long perfomance life, in the maintenance of engine, inspection and cleaning, have positive impetus.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is sectional view and the plane of gear shaft a of the present invention;
Fig. 3 is sectional view and the plane of gear shaft b of the present invention;
Fig. 4 is sectional view and the plane of gear shaft c of the present invention;
Fig. 5 is the sectional view of swivel nut of the present invention;
Fig. 6 is the plane of cover plate of the present invention.
Wherein: 1-cover plate, 2-gear shaft a, 3-gear shaft b, 4-gear shaft c, 5-swivel nut, 6-nut.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1:
The primary structure of the present embodiment, as Fig. 1, shown in Fig. 5, comprise upper and lower two pieces of identical cover plates 1, described cover plate 1 is provided with three through holes, through hole is nested with gear shaft b3, gear shaft a2, gear shaft c4 successively, the gear shaft of described gear shaft a2 engages with the gear shaft of gear shaft b3 and gear shaft c4 simultaneously, described gear shaft b3 top is external 12 square nut interfaces, gear shaft c4 top is general extension bar mouth, also be provided with swivel nut 5 between described cover plate 1, upper and lower two cover plates 1 is fixed by screw 6 in swivel nut 5 two ends, and special spanner with cover plate 1 intermediate throughholes center line axisymmetricly.The technical problem that the present embodiment mainly solves is when dismantling engine, in the shell situation not dismantling engine, inter-stage attachment bolt to be decomposed for inside, nut dismounting can be got off.
The concrete use procedure of 12 side's special spanner is, first the 12 square nut interfaces on special spanner gear shaft b3 top are fixed on need decompose bolt or nut on, again with fixed axis poling gear shaft a2 that is T-shaped or L-type, by fixing, finally external connecting rods is inserted in the general extension bar mouth on gear shaft c4 top, rotate external connecting rods, gear shaft c4 rotates thereupon, again because the gear shaft of gear shaft a2 engages with the gear shaft of gear shaft b3 and gear shaft c4 simultaneously, therefore gear shaft c4 driven gear axle a2 rotates, gear shaft a2 again driven gear axle b3 rotates, thus the 12 square nut interfaces on gear shaft b3 top are rotated, the bolt needing to decompose or nut are decomposed, because this special spanner is very little, engine casing work can be put into, then can when not removal of engine wheel chamber casing, the inter-stage attachment bolt to be decomposed to engine interior or nut carry out apportioned effort.
Wherein, general extension bar mouth is cubic extension bar mouth, and screw 6 is arranged on cover plate 1 surface between adjacent two through hole, and the quantity of screw 6 is four, and with cover plate 1 intermediate throughholes center line axisymmetricly.
Embodiment 2:
The present embodiment further improves cover plate 1 and gear shaft on the basis of embodiment 1, as Fig. 2, Fig. 3, shown in Fig. 4, Fig. 6, the axis of three through holes of cover plate 1 at grade, the gear number of teeth of gear shaft a2, gear shaft b3, gear shaft c4 is 18, and gear seamed edge rounding.Institute's sprocket drive spindle module is identical.Other parts of the present embodiment are identical with embodiment 1, repeat no more.
The above is only preferred embodiment of the present invention, and not do any pro forma restriction to the present invention, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present invention, all falls within protection scope of the present invention.
Claims (8)
1. side's special spanner, it is characterized in that: comprise upper and lower two pieces of identical cover plates (1), described cover plate (1) is provided with three through holes, through hole is nested with gear shaft b(3 successively), gear shaft a(2), gear shaft c(4), described gear shaft a(2) gear shaft simultaneously with gear shaft b(3) and gear shaft c(4) gear shaft engage, described gear shaft b(3) top is 12 square nut interfaces, gear shaft c(4) top is general extension bar mouth, swivel nut (5) is also provided with between described upper and lower two cover plates (1), swivel nut (5) two ends are by the fixing upper and lower two cover plates (1) of screw (6).
2. a kind of 12 side's special spanners according to claim 1, is characterized in that: described general extension bar mouth is cubic extension bar mouth.
3. a kind of 12 side's special spanners according to claim 1 and 2, is characterized in that: described screw (6) is arranged on cover plate (1) surface between adjacent two through hole.
4. multi-functional traditional Chinese medicine extraction system according to claim 3, is characterized in that: the quantity of described screw (6) is four, and with cover plate (1) intermediate throughholes center line axisymmetricly.
5. a kind of 12 side's special spanners according to claim 1 and 2, is characterized in that: described special spanner with cover plate (1) intermediate throughholes center line axisymmetricly.
6. a kind of 12 side's special spanners according to claim 1 and 2, is characterized in that: the axis of three through holes of described cover plate (1) at grade.
7. a kind of 12 side's special spanners according to claim 1 and 2, is characterized in that: described gear shaft a(2), gear shaft b(3), gear shaft c(4) the gear number of teeth be 18, and gear seamed edge rounding.
8. a kind of 12 side's special spanners according to claim 1 and 2, is characterized in that: described gear shaft a(2), gear shaft b(3), gear shaft c(4) module identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410630389.8A CN104369143A (en) | 2014-11-11 | 2014-11-11 | Special dodecagonal wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410630389.8A CN104369143A (en) | 2014-11-11 | 2014-11-11 | Special dodecagonal wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104369143A true CN104369143A (en) | 2015-02-25 |
Family
ID=52548466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410630389.8A Pending CN104369143A (en) | 2014-11-11 | 2014-11-11 | Special dodecagonal wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104369143A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151453A (en) * | 2015-04-24 | 2016-11-23 | 舍弗勒技术股份两合公司 | Thermal management module and there is its electromotor |
| CN108188965A (en) * | 2017-12-26 | 2018-06-22 | 中国航发四川燃气涡轮研究院 | Nut spanner between a kind of axial-flow compressor rotor disk |
| CN108406657A (en) * | 2018-04-20 | 2018-08-17 | 中国能源建设集团浙江火电建设有限公司 | Torsion converyer |
| CN111376209A (en) * | 2019-11-29 | 2020-07-07 | 国网山东省电力公司经济技术研究院 | Quick bolt fastening device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4649776A (en) * | 1985-08-27 | 1987-03-17 | Puncochar Norbert L | Extension for socket tool drive system |
| US5701773A (en) * | 1996-01-29 | 1997-12-30 | Markisello; Frank | Dual function apparatus for opening and removing automotive side-bar ignition locks |
| US5702211A (en) * | 1996-06-03 | 1997-12-30 | Roemer; David J. | Cutting tool coolant device |
| CN2411872Y (en) * | 2000-02-18 | 2000-12-27 | 上海蔡国鑫五金制品有限公司 | Ratchet screwdriver with lighting |
| CN2411873Y (en) * | 2000-03-03 | 2000-12-27 | 谢智庆 | Lighting structure of torque wrench |
| CN204183482U (en) * | 2014-11-11 | 2015-03-04 | 四川亚美动力技术有限公司 | A kind of 12 side's special spanners |
-
2014
- 2014-11-11 CN CN201410630389.8A patent/CN104369143A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4649776A (en) * | 1985-08-27 | 1987-03-17 | Puncochar Norbert L | Extension for socket tool drive system |
| US5701773A (en) * | 1996-01-29 | 1997-12-30 | Markisello; Frank | Dual function apparatus for opening and removing automotive side-bar ignition locks |
| US5702211A (en) * | 1996-06-03 | 1997-12-30 | Roemer; David J. | Cutting tool coolant device |
| CN2411872Y (en) * | 2000-02-18 | 2000-12-27 | 上海蔡国鑫五金制品有限公司 | Ratchet screwdriver with lighting |
| CN2411873Y (en) * | 2000-03-03 | 2000-12-27 | 谢智庆 | Lighting structure of torque wrench |
| CN204183482U (en) * | 2014-11-11 | 2015-03-04 | 四川亚美动力技术有限公司 | A kind of 12 side's special spanners |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151453A (en) * | 2015-04-24 | 2016-11-23 | 舍弗勒技术股份两合公司 | Thermal management module and there is its electromotor |
| CN108188965A (en) * | 2017-12-26 | 2018-06-22 | 中国航发四川燃气涡轮研究院 | Nut spanner between a kind of axial-flow compressor rotor disk |
| CN108406657A (en) * | 2018-04-20 | 2018-08-17 | 中国能源建设集团浙江火电建设有限公司 | Torsion converyer |
| CN111376209A (en) * | 2019-11-29 | 2020-07-07 | 国网山东省电力公司经济技术研究院 | Quick bolt fastening device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150225 |