CN201747894U - Second-speed gear - Google Patents
Second-speed gear Download PDFInfo
- Publication number
- CN201747894U CN201747894U CN2010202342867U CN201020234286U CN201747894U CN 201747894 U CN201747894 U CN 201747894U CN 2010202342867 U CN2010202342867 U CN 2010202342867U CN 201020234286 U CN201020234286 U CN 201020234286U CN 201747894 U CN201747894 U CN 201747894U
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- CN
- China
- Prior art keywords
- gear
- teeth
- shaft hole
- lug boss
- boss
- 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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- General Details Of Gearings (AREA)
- Gears, Cams (AREA)
Abstract
The utility model discloses a second-speed gear. External gear teeth are arranged on the outer periphery of the gear main body; a shaft hole is arranged at the center of the gear; a lug boss is formed on the right end surface of the gear main body and is concentric with the shaft hole; the central through hole of the lug boss is connected with the shaft hole, and the diameter of the central through hole of the lug boss is identical to that of the shaft hole; internal gear teeth are arranged on the outer periphery of the lug boss, and comprise normal teeth and thinning teeth; a plurality of oil grooves are arranged on the end surface of the lug boss; along the rotating direction of the gear, the oil groove forms an angle of 30 DEG-60 DEG with the axial direction of the shaft hole. The advantages are as follows: the lateral clearance is generated when the gear is meshed with the gear; a lubricating oil film is formed between meshed tooth outlines under the role of the lubricating oil, so as to extend the service life of the gear.
Description
Technical field
The utility model relates to field of gears, particularly a kind of second fast gear that is used for the gearbox of automobile.
Background technique
Automobile gearbox is one of key component of automobile, under the constant situation of the power of motor, gear by different sizes is meshing with each other, produce different speed ratios, make the speed of a motor vehicle different variations take place with moment of torsion, thereby satisfy the needs of driving, the critical piece in the gearbox is the gear of different gears, the quality of the quality of these gears and design decision gearbox performance.Existing be arranged in the gearbox the second fast gear in the course of the work, lubricated effect is not fine, tooth friction when engagement is bigger, cause the quick wearing and tearing of tooth and aging easily, shorten its working life, simultaneously the oil groove of existing gear be designed to radially extension along gear, when gear rotates, be unfavorable for improving lubrication effect.
Summary of the invention
It is poor that the purpose of this utility model is at the second fast gear of the existing gearbox described in background technique lubrication effect when meshing, it is bigger to rub, the design of the problem of quickening gear wear and oil groove is unreasonable easily, and the problem that can not improve lubrication effect provides a kind of second fast gear.
The realization the technical solution of the utility model is as follows:
A kind of second fast gear, the excircle of gear body is provided with the outer gear teeth, center at gear is provided with axis hole, on gear body right side with axis hole concentric be formed with boss, the boss central through bore is identical with shaft hole diameter and interconnect, and this boss excircle is provided with the interior gear teeth, and the interior gear teeth comprise orthodont and attenuated tooth, raised head face is provided with several oil grooves, oil groove along gear sense of rotation and aperture axis to being 30 °～60 ° angles.
The attenuate amount of described attenuated tooth is 0.45～0.65mm.
The width of described oil groove is 6～9mm, and the degree of depth is 1.3～2.4mm.
The utility model is compared the beneficial effect that has and is to comprise orthodont and attenuated tooth because of second gear teeth with the existing second fast gear, orthodont and attenuated tooth are according to certain space ratio setting, attenuated tooth is compared the attenuate amount with 0.45～0.65mm with orthodont, so can produce certain sideshake during gear engagement, forming lubricant film between the contacting profile under the effect of lubricant oil, avoid expanding stuck because of rub sassafras heating of the gear teeth, reduced the friction between the gear teeth simultaneously, help slowing down the wearing and tearing of gear, prolong the working life of gear.The end face of boss is provided with several oil grooves, oil groove along gear sense of rotation and aperture axis to being 30 °～60 ° angles, when gear rotates, this oil groove the flowing of lubricant oil of being more convenient for, by these oil grooves lubricant oil can better be lubricated to the gear teeth that mesh, reduce its friction.
Description of drawings
Fig. 1 is a schematic representation of the present utility model;
Fig. 2 is the right elevation of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Among the figure, 1 is the gear body, and 2 is the outer gear teeth, and 3 is boss, and 4 is the interior gear teeth, and 5 is oil groove, and 6 is orthodont, and 7 is attenuated tooth.
Embodiment
With reference to a kind of second fast gear shown in Figure 1, the excircle of gear body 1 is provided with the outer gear teeth 2, center at gear is provided with axis hole, on gear body right side with axis hole concentric be provided with boss 3, boss 3 central through bores are identical with shaft hole diameter and interconnect, these boss 3 excircles are provided with the interior gear teeth 4, the interior gear teeth 4 comprise orthodont 6 and attenuated tooth 7, boss 3 end faces are provided with several oil grooves 5, oil groove 5 along gear sense of rotation and aperture axis to being 30 °～60 ° angles, the attenuate amount of described attenuated tooth 7 is 0.45～0.65mm, and the width of described oil groove 5 is 6～9mm, and the degree of depth is 1.3～2.4mm.The quantity of the outer gear teeth 2 and the interior gear teeth 4 will design according to the demand of the velocity ratio of reality, and the space ratio of orthodont 6 and attenuated tooth 7 is 4: 3, promptly just has 3 attenuated tooths 7 every 4 orthodonts 6.Because second gear teeth comprise orthodont 6 and attenuated tooth 7, orthodont 6 and attenuated tooth 7 were according to 4: 3 space ratio setting, attenuated tooth 7 is compared the attenuate amount with 0.45～0.65mm with orthodont 6, so can produce certain sideshake during gear engagement, forming lubricant film between the contacting profile under the effect of lubricant oil, avoiding expanding stuckly, reducing the friction between the gear teeth simultaneously because of rub sassafras heating of the gear teeth, help slowing down the wearing and tearing of gear, prolong the working life of gear.The end face of boss 3 is provided with several oil grooves 5, oil groove 5 along gear sense of rotation and aperture axis to being 30 °～60 ° angles, when gear rotates, this oil groove 5 the flowing of lubricant oil of being more convenient for, by these oil grooves 5 lubricant oil can better be lubricated to the gear teeth that mesh, reduce its friction.
Claims (3)
1. fast gear, the excircle of gear body is provided with the outer gear teeth, center at gear is provided with axis hole, on gear body right side with axis hole concentric be formed with boss, the boss central through bore is identical with shaft hole diameter and interconnect, and this boss excircle is provided with the interior gear teeth, it is characterized in that: the interior gear teeth comprise orthodont and attenuated tooth, raised head face is provided with several oil grooves, oil groove along gear sense of rotation and aperture axis to being 30 °～60 ° angles.
2. the according to claim 1 second fast gear is characterized in that: the attenuate amount of described attenuated tooth is 0.45～0.65mm.
3. the according to claim 1 second fast gear is characterized in that: the width of described oil groove is 6～9mm, and the degree of depth is 1.3～2.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202342867U CN201747894U (en) | 2010-06-23 | 2010-06-23 | Second-speed gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202342867U CN201747894U (en) | 2010-06-23 | 2010-06-23 | Second-speed gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747894U true CN201747894U (en) | 2011-02-16 |
Family
ID=43582573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202342867U Expired - Fee Related CN201747894U (en) | 2010-06-23 | 2010-06-23 | Second-speed gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747894U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315019A (en) * | 2014-09-11 | 2015-01-28 | 李汉祥 | Sliding gear sleeve for thinning tooth synchronizer |
| CN104315022A (en) * | 2014-09-15 | 2015-01-28 | 李汉祥 | Automobile synchronization regulator tooth holder |
| CN104633051A (en) * | 2015-02-16 | 2015-05-20 | 盐城工学院 | Gear set for gearboxes |
| CN105014459A (en) * | 2015-08-03 | 2015-11-04 | 黄山凯新技术咨询有限公司 | Hydraulic gear shifting device used for numerically-controlled machine tool |
| CN106641181A (en) * | 2016-12-20 | 2017-05-10 | 赛克思液压科技股份有限公司 | Gear with end face lubricating structure |
| CN108131435A (en) * | 2018-02-01 | 2018-06-08 | 宁夏巨能机器人股份有限公司 | A kind of high intensity motor gear that truss mechanical hand is carried for casting sand core |
-
2010
- 2010-06-23 CN CN2010202342867U patent/CN201747894U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315019A (en) * | 2014-09-11 | 2015-01-28 | 李汉祥 | Sliding gear sleeve for thinning tooth synchronizer |
| CN104315022A (en) * | 2014-09-15 | 2015-01-28 | 李汉祥 | Automobile synchronization regulator tooth holder |
| CN104633051A (en) * | 2015-02-16 | 2015-05-20 | 盐城工学院 | Gear set for gearboxes |
| CN105014459A (en) * | 2015-08-03 | 2015-11-04 | 黄山凯新技术咨询有限公司 | Hydraulic gear shifting device used for numerically-controlled machine tool |
| CN108098427A (en) * | 2015-08-03 | 2018-06-01 | 河南高盛企业管理咨询有限公司 | For the hydraulic change gear device of numerically-controlled machine tool |
| CN106641181A (en) * | 2016-12-20 | 2017-05-10 | 赛克思液压科技股份有限公司 | Gear with end face lubricating structure |
| CN108131435A (en) * | 2018-02-01 | 2018-06-08 | 宁夏巨能机器人股份有限公司 | A kind of high intensity motor gear that truss mechanical hand is carried for casting sand core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20150623 |
|
| EXPY | Termination of patent right or utility model |