CN103692387A - Labor-saving wrench - Google Patents
Labor-saving wrench Download PDFInfo
- Publication number
- CN103692387A CN103692387A CN201310674918.XA CN201310674918A CN103692387A CN 103692387 A CN103692387 A CN 103692387A CN 201310674918 A CN201310674918 A CN 201310674918A CN 103692387 A CN103692387 A CN 103692387A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- generation part
- ripple generation
- connecting rod
- flexbile gear
- 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
Links
- 238000010276 construction Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Images
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
- B25B17/02—Hand-driven gear-operated wrenches or screwdrivers providing for torque amplification
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
本发明公开了一种省力扳手，包含套筒、柔轮、刚轮套、连接杆和手柄；套筒的前端设置有螺钉配合孔，套筒的后端设置有波发生部件；波发生部件的外圆周的形状为非圆形；柔轮设置在波发生部件的外侧，柔轮与波发生部件之间设置有轴承滚珠；波发生部件和柔轮均设置在刚轮套中；柔轮的外圈和刚轮套的内圈上均设置有轮齿，柔轮与刚轮套部分啮合；连接杆设置在刚轮套的后端；手柄设置在连接杆的后端；本发明的省力扳手，通过波发生部件、柔轮和刚轮套组成一种谐波齿轮结构，由于谐波齿轮具有较大的传动比，可以实现通过较小的力矩将较紧的螺钉或螺母拧开。
The invention discloses a labor-saving wrench, which comprises a sleeve, a flexible wheel, a rigid wheel sleeve, a connecting rod and a handle; the front end of the sleeve is provided with a screw fitting hole, and the rear end of the sleeve is provided with a wave generating part; The shape of the outer circumference is non-circular; the flexspline is arranged on the outside of the wave generating part, and a bearing ball is arranged between the flexspline and the wave generating part; both the wave generating part and the flexspline are arranged in the rigid wheel sleeve; Gear teeth are provided on the inner ring of the ring and the rigid wheel cover, and the flexible spline is partially meshed with the rigid wheel cover; the connecting rod is arranged at the rear end of the rigid wheel cover; the handle is arranged at the rear end of the connecting rod; the labor-saving wrench of the present invention, A harmonic gear structure is composed of wave generating components, flexible splines and rigid wheel sleeves. Since the harmonic gear has a large transmission ratio, it can be realized that a tighter screw or nut can be unscrewed by a small torque.
Description
Technical field
The present invention relates to a kind of spanner, particularly a kind ofly can by less power, back out the labour-saving spanner of tighter screw, belong to spanner technical field.
Background technology
In the assembling and maintenance process of product, nut and screw usually there will be the situation that rust is dead and be difficult to turn on; To adopt the method for Lengthened wrench actuation arm to dismantle habitually in the past, but there is application of force difficulty in this method, and dynamics is inadequate, dangerous high drawback, and can cause thread damage, workpiece destroys, people's personal safety is on the hazard, has not only extended the working time, also increased job costs.
Summary of the invention
Technical problem for above-mentioned existence, the object of the invention is: proposed a kind ofly can back out by less power the labour-saving spanner of tighter screw.
Technical solution of the present invention is achieved in that a kind of labour-saving spanner, comprises sleeve, flexbile gear, firm wheel case, connecting rod and handle; The front end of described sleeve is provided with screw fit hole, and the rear end of sleeve is provided with ripple generation part; Being shaped as of the excircle of described ripple generation part is non-circular; Described flexbile gear is arranged on the outside of ripple generation part, between flexbile gear and ripple generation part, is provided with bearing ball; Described ripple generation part and flexbile gear are all arranged in firm wheel case; On the inner ring of the outer ring of described flexbile gear and just wheel case, be provided with the gear teeth, flexbile gear partly meshes with firm wheel case; Described connecting rod is arranged on the rear end of firm wheel case; Described handle is arranged on the rear end of connecting rod.
Preferably, the excircle of described ripple generation part is shaped as ellipse.
Preferably, described ripple generation part is hollow-core construction.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
Labour-saving spanner of the present invention, by ripple generation part, flexbile gear and firm wheel case, form a kind of harmonic gear structure, because harmonic gear has larger gearratio, and principle that can coaxial line transmission, by adding up of rotating speed, made up the deficiency in moment, and the gear range of harmonic gear is very large, the size of gearratio depends on flexbile gear and the just division of the number of teeth of wheel case, can realize by less moment tighter screw or nut are turned on.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
The structural representation that accompanying drawing 1 is a kind of labour-saving spanner of the present invention;
The left view that accompanying drawing 2 is a kind of labour-saving spanner of the present invention;
The A-A that accompanying drawing 3 is a kind of labour-saving spanner of the present invention is to cutaway view;
Wherein: 1, sleeve; 2, flexbile gear; 3, firm wheel case; 4, connecting rod; 5, handle; 6, screw fit hole; 7, ripple generation part.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described.
As Figure 1-3, a kind of labour-saving spanner of the present invention, comprises sleeve 1, flexbile gear 2, firm wheel case 3, connecting rod 4 and handle 5; The front end of described sleeve 1 is provided with screw fit hole 6, and the rear end of sleeve 1 is provided with ripple generation part 7; Described ripple generation part 7 is hollow-core construction, the excircle of ripple generation part 7 be shaped as ellipse; Described flexbile gear 2 is arranged on the outside of ripple generation part 7, between flexbile gear 2 and ripple generation part 7, is provided with bearing ball; Described ripple generation part 7 and flexbile gear 2 are all arranged in firm wheel case 3; On the inner ring of the outer ring of described flexbile gear 2 and just wheel case 3, be provided with the gear teeth, flexbile gear 2 and just wheel case 3 part engagements; The oval structure of ripple generation part 7 and hollow-core construction make ripple generation part 7 can carry out certain strain, and cooperation flexbile gear 2 can reduce the wearing and tearing of flexbile gear 2, increase the service life of flexbile gear 2; Described connecting rod 4 is arranged on the rear end of firm wheel case 3; Described handle 5 is arranged on the rear end of connecting rod 4.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
Labour-saving spanner of the present invention, by ripple generation part, flexbile gear and firm wheel case, form a kind of harmonic gear structure, because harmonic gear has larger gearratio, and principle that can coaxial line transmission, by adding up of rotating speed, made up the deficiency in moment, and the gear range of harmonic gear is very large, the size of gearratio depends on flexbile gear and the just division of the number of teeth of wheel case, can realize by less moment tighter screw or nut are turned on.
Above-described embodiment is only explanation technical conceive of the present invention and feature; its object is to allow person skilled in the art can understand content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (3)
1. a labour-saving spanner, is characterized in that: comprise sleeve (1), flexbile gear (2), firm wheel case (3), connecting rod (4) and handle (5); The front end of described sleeve (1) is provided with screw fit hole (6), and the rear end of sleeve (1) is provided with ripple generation part (7); Being shaped as of the excircle of described ripple generation part (7) is non-circular; Described flexbile gear (2) is arranged on the outside of ripple generation part (7), between flexbile gear (2) and ripple generation part (7), is provided with bearing ball; Described ripple generation part (7) and flexbile gear (2) are all arranged in firm wheel case (3); On the inner ring of the outer ring of described flexbile gear (2) and just wheel case (3), be provided with the gear teeth, flexbile gear (2) and just wheel case (3) part engagement; Described connecting rod (4) is arranged on the rear end of firm wheel case (3); Described handle (5) is arranged on the rear end of connecting rod (4).
2. labour-saving spanner according to claim 1, is characterized in that: the excircle of described ripple generation part (7) be shaped as ellipse.
3. labour-saving spanner according to claim 1, is characterized in that: described ripple generation part (7) is hollow-core construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674918.XA CN103692387A (en) | 2013-12-12 | 2013-12-12 | Labor-saving wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674918.XA CN103692387A (en) | 2013-12-12 | 2013-12-12 | Labor-saving wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103692387A true CN103692387A (en) | 2014-04-02 |
Family
ID=50354136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310674918.XA Pending CN103692387A (en) | 2013-12-12 | 2013-12-12 | Labor-saving wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103692387A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681412A (en) * | 2016-08-01 | 2018-02-09 | 北京遥感设备研究所 | A kind of radio frequency (RF) coaxial connector assembly tool with torque |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4929111A (en) * | 1987-03-02 | 1990-05-29 | Giuseppe Lauritano | Tool manipulating harmonic balancer |
| US20020007697A1 (en) * | 2000-05-26 | 2002-01-24 | Yoshihiro Tanioka | Cup-type wave gear device |
| US20090056032A1 (en) * | 2007-08-30 | 2009-03-05 | Jonco Industries, Inc. | Engine turning device |
| CN201650259U (en) * | 2010-04-30 | 2010-11-24 | 长江大学 | Harmonic gear transmission device used for petroleum drilling track control |
| CN102198646A (en) * | 2010-03-26 | 2011-09-28 | 张国根 | Force-increasing spanner |
| CN203738679U (en) * | 2013-12-12 | 2014-07-30 | 苏州市职业大学 | Labor-saving wrench |
-
2013
- 2013-12-12 CN CN201310674918.XA patent/CN103692387A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4929111A (en) * | 1987-03-02 | 1990-05-29 | Giuseppe Lauritano | Tool manipulating harmonic balancer |
| US20020007697A1 (en) * | 2000-05-26 | 2002-01-24 | Yoshihiro Tanioka | Cup-type wave gear device |
| US20090056032A1 (en) * | 2007-08-30 | 2009-03-05 | Jonco Industries, Inc. | Engine turning device |
| CN102198646A (en) * | 2010-03-26 | 2011-09-28 | 张国根 | Force-increasing spanner |
| CN201650259U (en) * | 2010-04-30 | 2010-11-24 | 长江大学 | Harmonic gear transmission device used for petroleum drilling track control |
| CN203738679U (en) * | 2013-12-12 | 2014-07-30 | 苏州市职业大学 | Labor-saving wrench |
Non-Patent Citations (1)
| Title |
|---|
| 上海市电动工具研究所和大桥工程局、上海电器三厂、上海测电器厂: "120公斤•米定扭矩电动扳手", 《化工炼油机械通讯》, no. 05, 31 December 1972 (1972-12-31), pages 62 - 64 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681412A (en) * | 2016-08-01 | 2018-02-09 | 北京遥感设备研究所 | A kind of radio frequency (RF) coaxial connector assembly tool with torque |
| CN107681412B (en) * | 2016-08-01 | 2019-03-29 | 北京遥感设备研究所 | A kind of radio frequency (RF) coaxial connector assembly tool with torque |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140402 |