CN105351478A - Combined gear - Google Patents
Combined gear Download PDFInfo
- Publication number
- CN105351478A CN105351478A CN201410416543.1A CN201410416543A CN105351478A CN 105351478 A CN105351478 A CN 105351478A CN 201410416543 A CN201410416543 A CN 201410416543A CN 105351478 A CN105351478 A CN 105351478A
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- gear
- stressed
- internal gear
- outer circumferential
- external gear
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Abstract
Disclosed is a combined gear. The combined gear comprises an external gear and an internal gear; a driving rack is disposed on the outer circumferential surface of the internal gear; a driven rack which is engaged with the driving rack is disposed on the inner circumferential surface of the external gear; multiple notches are formed in the outer circumferential surface of the internal gear; longitudinal stress strips are disposed on the two transverse sides of each notch; stress grooves which are matched with the longitudinal stress strips are formed in the inner circumferential surface of the external gear; when the external gear is connected with the internal gear, the longitudinal stress strips are located in the stress grooves, the peripheral side walls of the longitudinal stress strips abut against the inner circumferential side walls of the stress grooves, and the two butting surfaces of each longitudinal stress strip and the corresponding stress groove are coated with rubber. The internal gear and the external gear can be dismounted so that when the internal gear or the external gear is damaged, the damaged gear can be conveniently replaced; the functions of the gears are achieved to the maximum degree; resources are saved; the cost is reduced; the two butting surfaces of each longitudinal stress strip and the corresponding stress groove are coated with the rubber, so that the situation that the combined gear is damaged due to the fact that the external gear falls off during high-speed operation of the combined gear is avoided.
Description
Technical field
The present invention relates to a kind of gear, specifically relate to a kind of built-up gear, belong to component of machine technical field.
Background technique
Gear is as mechanically operated critical piece, and all very extensive of the application in the industries such as automobile industry, machine building industry, instrument and apparatus industry, aerospace industry, Gear Industry has become industry largest in Chinese mechanical basic part.Having many uses of gear is the strength member in various machinery, as the wrist-watch in lathe, aircraft, steamer and daily life, electric fan etc. all will use various gear.With regard to the market demand and production scale, China Gear industry exceedes Italy in global rank, occupies the 4th, the world.Due to China's Machining Technology, the restriction of heat treatment technology causes gear shaft holes serious wear, especially under impulsive load frequently, more easily cause the wearing and tearing of gear shaft holes and axle, in case of wearing through welding, turning, the processing methods such as milling are simply repaired, its processing difficulties is complicated, cost is high, gear particularly after repairing no longer is heat-treated, this just causes the wear-resisting difference of the gear after reparation, greatly reduce working life, therefore see, gear through repairing generally is merely able to use very short a period of time again, even can directly gear be discarded in some industry, do not repair, this all can cause very large waste of material.And the size of gear used by different machinery is all different, so in order to be applicable to industry-by-industry, generally not producing dissimilar gear, increasing the kind of gear like this, be unfavorable for unified management and the application of gear.
Summary of the invention
In order to overcome above-mentioned existing technical problem, the invention provides a kind of convenient for production, intensity is high, transmission stability good, can effectively solve in prior art because the built-up gear of the problem of waste of material not carrying out gear reparation or cause because the working life after gear reparation is very short.
The technical solution adopted for the present invention to solve the technical problems is: a kind of built-up gear, comprise external gear, be sheathed on the internal gear in external gear, internal gear outer circumferential face is provided with some active tooth bars, external gear inner peripheral surface is provided with some driven tooth bars be meshed with the active tooth bar set by internal gear outer circumferential face, the outer circumferential face of described internal gear is provided with several breach, and each breach both lateral sides is equipped with stressed taeniae, the inner peripheral surface of external gear is provided with the stressed groove suitable with the stressed taeniae set by internal gear, when external gear and internal gear are connected, stressed taeniae is placed in stressed groove, the outer peripheral sidewall of stressed taeniae and the inner circumferential sidewall of stressed groove inconsistent, and stressed taeniae and the inconsistent surface, face of stressed groove two all scribble rubber.
The inner diameter that the outer diameter of end face formation of the active tooth bar set by the outer circumferential face of described internal gear and the bottom surface of the driven tooth bar set by external gear are formed matches.
The outer circumferential face of described internal gear is provided with three breach, and three breach are distributed on the outer circumferential face of internal gear.
The inner peripheral surface of described external gear is provided with the suitable stressed groove of six stressed taeniaes be provided with the outer circumferential face of internal gear.
Described stressed taeniae horizontal width equals the width of two adjacent main carry-over bars.
Internal gear outer circumferential face between every two breach of described internal gear is provided with eight initiatively tooth bars between corresponding stressed taeniae, and external gear is provided with nine and the intermeshing driven tooth bar of active tooth bar on the inner peripheral surface corresponding with active tooth bar.
The cross section of the active tooth bar set by the outer circumferential face of described internal gear axisymmetricly trapezoidal.
Adopt the built-up gear of structure of the present invention, when producing, mould just can have corresponding setting, and machine shaping is very convenient, can greatly reduce costs; By the improvement to active tooth bar and driven tooth strip, stability when making the machine shaping of built-up gear and run and precision strengthen greatly, increase transmission stability and the intensity of built-up gear, reduce cost of production simultaneously; Be demountable between internal gear and external gear, make at internal gear or external gear one of them damage and also can change easily, farthest can play the effect of a gear, be conducive to saving resource, reduce costs; All scribble rubber at stressed taeniae and the inconsistent surface, face of stressed groove two, avoid built-up gear and occur in the central external gear that the runs up situation causing built-up gear impaired that comes off.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention.
Fig. 2 is the overall structure schematic diagram of external gear of the present invention.
Fig. 3 is the overall structure schematic diagram of internal gear of the present invention.
In figure: 1. external gear, 2. internal gear, 3. active tooth bar, 4. driven tooth bar, 5. breach, 6. stressed taeniae, 7. stressed groove, 8. rubber.
Embodiment
In order to make technical problem to be solved by this invention, technological scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1 to Figure 3, a kind of built-up gear, comprises external gear 1, the internal gear 2 be sheathed in external gear 1, and internal gear 2 outer circumferential face is provided with some active tooth bars 3, the cross section of the active tooth bar 3 set by the outer circumferential face of internal gear 2 axisymmetricly trapezoidal.External gear 1 inner peripheral surface is provided with some driven tooth bars 4 be meshed with the active tooth bar 3 set by internal gear 2 outer circumferential face, and the inner diameter that the outer diameter of end face formation of the active tooth bar 3 set by the outer circumferential face of internal gear 2 and the bottom surface of the driven tooth bar 4 set by external gear 1 are formed matches; The outer circumferential face of internal gear 2 is provided with the outer circumferential face that three breach, 5, three breach 5 are distributed on internal gear 2, and each breach 5 both lateral sides is equipped with stressed taeniae 6, and stressed taeniae 6 horizontal width equals the width of two adjacent main carry-over bars 3; The inner peripheral surface of external gear 1 is provided with the suitable stressed groove 7 of six stressed taeniaes 6 be provided with the outer circumferential face of internal gear 2, when external gear 1 is connected with internal gear 2, stressed taeniae 6 is placed in stressed groove 7, the outer peripheral sidewall of stressed taeniae 6 and the inner circumferential sidewall of stressed groove 7 inconsistent, and stressed taeniae 6 and the inconsistent surface, face of stressed groove 7 two all scribble rubber 8.Internal gear 2 outer circumferential face between every two breach 5 of internal gear 2 is provided with eight initiatively tooth bars 3 between corresponding stressed taeniae 6, and external gear 1 is provided with nine and the intermeshing driven tooth bar 4 of active tooth bar 3 on the inner peripheral surface corresponding with active tooth bar 3.
Adopt the built-up gear of structure of the present invention, when producing, mould just can have corresponding setting, and machine shaping is very convenient, can greatly reduce costs; By the improvement to active tooth bar 3 and driven tooth bar 4 shape, stability when making the machine shaping of built-up gear and run and precision strengthen greatly, increase transmission stability and the intensity of built-up gear, reduce cost of production simultaneously; Be demountable between internal gear 2 and external gear 1, make at internal gear 2 or external gear 1 one of them damage and also can change easily, farthest can play the effect of a gear, be conducive to saving resource, reduce costs; All scribble rubber 8 at stressed taeniae 6 and the inconsistent surface, face of stressed groove 7 two, avoid built-up gear and occur in the central external gear 1 that the runs up situation causing built-up gear impaired that comes off.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a built-up gear, comprise external gear (1), be sheathed on the internal gear (2) in external gear (1), internal gear (2) outer circumferential face is provided with some active tooth bars (3), external gear (1) inner peripheral surface is provided with some driven tooth bars (4) be meshed with the active tooth bar (3) set by internal gear (2) outer circumferential face, it is characterized in that: the outer circumferential face of described internal gear (2) is provided with several breach (5), and each breach (5) both lateral sides is equipped with stressed taeniae (6), the inner peripheral surface of external gear (1) is provided with the stressed groove (7) suitable with the stressed taeniae (6) set by internal gear (2), when external gear (1) is connected with internal gear (2), stressed taeniae (6) is placed in stressed groove (7), the outer peripheral sidewall of stressed taeniae (6) and the inner circumferential sidewall of stressed groove (7) inconsistent, and stressed taeniae (6) and the inconsistent surface, face of stressed groove (7) two all scribble rubber (8).
2. the built-up gear according to claims 1, is characterized in that: the inner diameter that the outer diameter of end face formation of the active tooth bar (3) set by outer circumferential face of described internal gear (2) and the bottom surface of the driven tooth bar (4) set by external gear (1) are formed matches.
3. the built-up gear according to claims 1, is characterized in that: the outer circumferential face of described internal gear (2) is provided with three breach (5), and three breach (5) are distributed on the outer circumferential face of internal gear (2).
4. the built-up gear according to claims 1 or 3, is characterized in that: the inner peripheral surface of described external gear (1) is provided with the suitable stressed groove (7) of six stressed taeniaes (6) be provided with the outer circumferential face of internal gear (2).
5. the built-up gear according to claims 1, is characterized in that: described stressed taeniae (6) horizontal width equals the width of two adjacent main carry-over bars (3).
6. the built-up gear according to claims 1, it is characterized in that: internal gear (2) outer circumferential face between every two breach (5) of described internal gear (2) is provided with eight initiatively tooth bars (3) between corresponding stressed taeniae (6), external gear (1) is provided with nine and active tooth bar (3) intermeshing driven tooth bar (4) on the inner peripheral surface corresponding with active tooth bar (3).
7. the built-up gear according to claims 1, is characterized in that: the cross section of the active tooth bar (3) set by outer circumferential face of described internal gear (2) axisymmetricly trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410416543.1A CN105351478A (en) | 2014-08-22 | 2014-08-22 | Combined gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410416543.1A CN105351478A (en) | 2014-08-22 | 2014-08-22 | Combined gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105351478A true CN105351478A (en) | 2016-02-24 |
Family
ID=55327511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410416543.1A Pending CN105351478A (en) | 2014-08-22 | 2014-08-22 | Combined gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105351478A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035081A (en) * | 2017-10-27 | 2018-05-15 | 安徽省萧县徽星机械制造有限公司 | A kind of sewing quilt machine eedle precise movement devices |
| CN108843768A (en) * | 2018-08-27 | 2018-11-20 | 苏州小工匠机器人有限公司 | gear structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09303501A (en) * | 1996-05-17 | 1997-11-25 | Harmonic Drive Syst Ind Co Ltd | Film forming method for tooth in flexible engaging type gear device |
| CN201705892U (en) * | 2010-06-30 | 2011-01-12 | 浙江迅达汽车部件有限公司 | Automobile transmission gear |
| CN201705893U (en) * | 2010-06-30 | 2011-01-12 | 浙江迅达汽车部件有限公司 | Gear |
| CN202431906U (en) * | 2011-12-26 | 2012-09-12 | 周豪威 | Gear hub of automobile speed changing box |
-
2014
- 2014-08-22 CN CN201410416543.1A patent/CN105351478A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09303501A (en) * | 1996-05-17 | 1997-11-25 | Harmonic Drive Syst Ind Co Ltd | Film forming method for tooth in flexible engaging type gear device |
| CN201705892U (en) * | 2010-06-30 | 2011-01-12 | 浙江迅达汽车部件有限公司 | Automobile transmission gear |
| CN201705893U (en) * | 2010-06-30 | 2011-01-12 | 浙江迅达汽车部件有限公司 | Gear |
| CN202431906U (en) * | 2011-12-26 | 2012-09-12 | 周豪威 | Gear hub of automobile speed changing box |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035081A (en) * | 2017-10-27 | 2018-05-15 | 安徽省萧县徽星机械制造有限公司 | A kind of sewing quilt machine eedle precise movement devices |
| CN108843768A (en) * | 2018-08-27 | 2018-11-20 | 苏州小工匠机器人有限公司 | gear structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160224 |