CN2895867Y - Overdrive clutch - Google Patents
Overdrive clutch Download PDFInfo
- Publication number
- CN2895867Y CN2895867Y CN 200620117357 CN200620117357U CN2895867Y CN 2895867 Y CN2895867 Y CN 2895867Y CN 200620117357 CN200620117357 CN 200620117357 CN 200620117357 U CN200620117357 U CN 200620117357U CN 2895867 Y CN2895867 Y CN 2895867Y
- Authority
- CN
- China
- Prior art keywords
- gear
- outer ring
- ring gear
- wheel device
- free wheel
- 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
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 10
- 210000004907 gland Anatomy 0.000 claims description 7
- 238000010791 quenching Methods 0.000 abstract description 8
- 230000000171 quenching effect Effects 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 238000005255 carburizing Methods 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000035939 shock Effects 0.000 description 5
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model belongs to an overdrive clutch, which is particular to a large-scaled overdrive clutch in the loader reduction gearbox to tolerate compact and heavy load. The device comprises a convex wheel, a rolling column, a external ring gear, a separation frame, a pressure lid and a spring, wherein, the external ring gear is a combined gear by the fixed connection between the gear ring and the spoke part. The gear ring can be made from gear steel with high quality, such as 20CrMnTi by the way of carburizing or quenching, and the spoke part can be made from the bearing steel of GCr15 through the way of quenching, which can ensure the hardness, the contact strength and wear resistance between the faces of rolling column and the convex wheel of the inner ring, and between the external ring faces of the rolling column and the external ring gear. The device improves the service time and working reliability of the whole overdrive clutch greatly without increasing new important components with complex structure and no quality guarantee.
Description
Technical field
The utility model relates to a kind of free wheel device, particularly withstands shocks in the loader speed reducer and the large-scale free wheel device of heavy load.
Background technique
The free wheel device that uses in the loader speed reducer generally is made up of cam, roller, outer ring gear, isolating frame, gland and spring at present.Cam is fastening by the gear of bolt and speed reducer power input shaft.Power through input shaft gear, cam, roller, outputs power by outer ring gear after being imported by input shaft then.This free wheel device is an easily worn part.For working life and the functional reliability that improves these parts, existing many people have taked various way, but produce little effect.As No. 02259717.4 " loader roller-type overrunning clutch " utility model patent of China, adopt the working surface that directional post is set in promoting the spring of isolating ring, star-wheel is contacted with roller to make the way of eccentric circle cambered surface into by the plane exactly.Because the quality of processing of eccentric circle cambered surface is difficult to guarantee that this way not only makes processing technology complicated, and can not fundamentally solve the life problems of free wheel device.00261332.8 number " loader speed reducer with the big free wheel device of wedge block type " utility model patent then is to adopt special-shaped voussoir is set between gear outer ring and inner ring, and adorns the way of retainer and spring between special-shaped voussoir and special-shaped voussoir.Because very difficult work in-process guarantees conformity and interchangeability between each special-shaped voussoir, this way also can make complex process and quality descend.2000420039223.0 number " the big free wheel device of loader " utility model patent then is to adopt to increase sliding determining below roller, makes between roller and the interior ring cam to be contacted by line to become the way that face contacts.Equally, owing to be difficult to guarantee conformity and interchangeability between each slide block, thereby this way not only makes structure and complex process, is difficult to implement, but also is the life problems that can not fundamentally solve free wheel device.In a word, above-mentioned patent is not all caught influences the loader free wheel device subject matter in working life.Wearing and tearing between roller and the interior ring cam are not to influence the loader free wheel device subject matter in working life in fact, because roller and all available Bearing Steel of interior ring cam are made, through they all have very high hardness and wear resistance after the Quenching Treatment, they are very wear-resisting, very durable as bearing.And outer ring gear, the particularly hardness and the thickness of its outer ring surface wearing layer that contacts with roller, being only influences the loader free wheel device key in working life.As everyone knows, existing at present (comprising in the above-mentioned patent), outer ring gear all was an one-piece parts, and it should be as the working gear of the load that withstands shocks, again as bearing the high abrasion outer race work that contacts with roller.For taking into account two kinds of requirements of one's work, existing outer ring gear generally all uses low-carbon alloy steel 20CrMnTi to make, and its flank of tooth and outer ring surface improve its hardness and wear resistance by carburizing, quenching.But because the thickness of carburized case is limited, thereby, the outer ring surface of contact and withstand shocks with roller surface load and high contact stress, after use after a while, will soon wear and tear and press to be fallen into, thereby free wheel device was lost efficacy, and then make whole loader climb nest.
Summary of the invention
Task of the present utility model is the shortcoming that will overcome existing free wheel device, and the new structure free wheel device that a kind of main process and working life close with existing technology can bigger raising is provided.
Task of the present utility model is finished like this: it also has cam, roller, outer ring gear, isolating frame, gland and spring, it is characterized in that: outer ring gear is a built-up gear that is formed by connecting with fastening piece by gear ring portion and spoke portion.
For making free wheel device when withstanding shocks load, contact better, stressed more even between the working surface of roller and cam cylindrical and the outer ring surface of outer ring gear, bearing strength is higher, between the interior axle journal of the interior circle of cam and described spoke portion the rolling element that is uniformly distributed along the circumference is installed also.It is spaced-apart with the rolling element between the axle journal in circle and the spoke portion in the cam that retainer also can be set.
Because outer ring gear of the present utility model is a built-up gear, its gear ring portion can make by carburizing, quenching of high-quality Pinion Steel such as 20CrMnTi, spoke portion can make by quenching of high-quality Bearing Steel such as GCr15, thereby can guarantee between the working surface of roller and interior ring cam and between the outer ring surface of roller and outer ring gear very high hardness, contact strength and wear resistance are arranged all, the outer ring surface that particularly can guarantee outer ring gear has enough thick quench-hardened case, thereby it can be worn very soon and press sunken.And the quenching of the carburizing of gear ring, quenching and bearing is very ripe technology; The mechanical processing technique of each part and former technology are basic identical again, thereby after existing integrated type outer ring gear changed into the combined type outer ring gear, need not increase any new constitutional detail, the strength member that particularly need not increase new, complex structure, is difficult to ensure the quality of products just can make the working life of whole free wheel device and functional reliability obtain bigger raising.After existing integrated type outer ring gear changed into the combined type outer ring gear, though become the combination of three parts by an one-piece parts, make the life cycle of loader free wheel device extend to 2 years from half a year, the life-span is original 4 times.
Description of drawings
Fig. 1 is an embodiment's of the utility model a vertical profile schematic representation.Fig. 2 is that A among Fig. 1 is to half sectional view.Fig. 3 is another embodiment's of the utility model a vertical profile schematic representation.Fig. 4 is the structural representation of existing loader free wheel device.
Embodiment
With reference to accompanying drawing, the free wheel device in the loader speed reducer mainly is made up of cam 1, roller 2, outer ring gear 3, isolating frame 4, gland 5 and spring 6.Wherein, outer ring gear 3 is that 5 words of two mirror images of a longitudinal section picture lack the complex parts that the crotch of a horizontal pen is formed by connecting, and its top cylindrical is a gear ring portion 7, and the center is an input shaft bore 8, and there is a toroidal cavity in spoke portion 9.Outer ring gear 3 is bearing on the input shaft (not drawing among the figure) by the rolling bearing that is installed in this axis hole 8.Cam, roller, isolating frame, gland and spring just are installed in this cavity.Cam 1 is fixing by bolt in the bolt hole 10 and input shaft gear (not drawing among the figure).Have an appointment between the interior axle journal 12 of the toroidal cavity of the interior circle 11 of cam 1 and outer ring gear 3 spoke portions 9 gap of 1mm forms running fit; The working surface 13 of cam 1 cylindrical is by roller 2, comes close to or in contact with the outer ring surface 14 of outer ring gear 3 spoke portions 9 toroidal cavities; Isolating frame 4 separates two adjacent rollers between the outer ring surface 14 of the working surface 13 of cam cylindrical and outer ring gear; Gland 5 is fixed on the cam 1; Spring 6 acts between gland 5 and the isolating frame 4.As shown in Figure 4, the outer ring gear 3 of the free wheel device of existing loader is the overall gear that a gear ring portion 7 and spoke portion 9 are made of one.And outer ring gear 3 of the present utility model is one and is fastenedly connected the built-up gear that forms by gear ring portion 7 with spoke portion 9 usefulness fastening piece rivets 15 (also can use bolt).For ease of processing and assembling, the straight pen place of drawing that is preferably in 5 original font overall gears is cut apart and combination, as shown in figures 1 and 3, thereby top cylindrical gear ring and part former are made gear ring portion 7, and with remaining part, promptly partly former and spoke portion toroidal cavity and center input shaft bore are made spoke portion 9 (also available other the title of this spoke portion, but its notion is exactly the part of former outer ring gear except gear ring portion).
For making free wheel device when withstanding shocks load, contact better, stressed more even between the working surface of roller and cam cylindrical and the outer ring surface of outer ring gear, bearing strength is higher, be preferably in the rolling element 16 that installation is uniformly distributed along the circumference between the interior axle journal 12 of circle 11 and outer ring gear toroidal cavity in the cam that forms running fit, as the rolling element of roller (as shown in Fig. 1 and Fig. 2), ball or other form.Can have only very little gap and near each other or contact between the two adjacent rolling elements, also can they be separated certain distance with retainer.
The utility model not only can be used as the free wheel device of loader speed reducer, and can be used as punch press or other mechanical clutch.
Claims (3)
1, a kind of free wheel device comprises cam, roller, outer ring gear, isolating frame, gland and spring, it is characterized in that: outer ring gear is a built-up gear that is formed by connecting with fastening piece by gear ring portion and spoke portion.
2, by the described free wheel device of claim 1, it is characterized in that: between the interior axle journal of the interior circle of cam and described spoke portion, the rolling element that is uniformly distributed along the circumference is installed also.
3, by the described free wheel device of claim 2, it is characterized in that: have retainer that the roller body between the axle journal in circle and the spoke portion in the cam is separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620117357 CN2895867Y (en) | 2006-05-18 | 2006-05-18 | Overdrive clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620117357 CN2895867Y (en) | 2006-05-18 | 2006-05-18 | Overdrive clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2895867Y true CN2895867Y (en) | 2007-05-02 |
Family
ID=38065443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620117357 Expired - Fee Related CN2895867Y (en) | 2006-05-18 | 2006-05-18 | Overdrive clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2895867Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192238A (en) * | 2013-04-24 | 2013-07-10 | 厦门大学 | Processing method of besides-star wheel ditch groove of overrunning coupler |
| CN104583628A (en) * | 2012-08-20 | 2015-04-29 | 日本精工株式会社 | Roller clutch equipped with support bearing |
-
2006
- 2006-05-18 CN CN 200620117357 patent/CN2895867Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104583628A (en) * | 2012-08-20 | 2015-04-29 | 日本精工株式会社 | Roller clutch equipped with support bearing |
| CN103192238A (en) * | 2013-04-24 | 2013-07-10 | 厦门大学 | Processing method of besides-star wheel ditch groove of overrunning coupler |
| CN103192238B (en) * | 2013-04-24 | 2016-01-27 | 厦门大学 | Freewheel clutch out star wheel groove processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIUZHOU SHUANGYING CLUTCH MANUFACTURING CO., LTD. Free format text: FORMER OWNER: LUO QINGFAN Effective date: 20110602 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 545007 CARE OF LUO MINJIE, NO. 402, UNIT 1, BUILDING 88, ENGINEERING ZONE, HEPING ROAD, LIUNAN DISTRICT, LIUZHOU CITY, GUANGXI ZHUANG AUTONOMOUS REGION TO: 545006 NO. 3, EAST OF YANGXU ROAD, YANGHE NEW INDUSTRIAL ZONE, LIUZHOU CITY, GUANGXI ZHUANG AUTONOMOUS REGION |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110602 Address after: 545006 the Guangxi Zhuang Autonomous Region Liuzhou city and the Industrial District Yang Xu East Road No. 3 Patentee after: Liuzhou Shuangying Clutch Manufacturing Co., Ltd. Address before: Peace road 545007 Liuzhou city the Guangxi Zhuang Autonomous Region District Liunan District 88 Building 1 Unit No. 402 Luo Minjie Patentee before: Luo Qingfan |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070502 Termination date: 20150518 |
|
| EXPY | Termination of patent right or utility model |